/* 主导航固定样式 */
.main-nav {
    height: 60px;
}

/* 次级导航固定样式 */
.subnav-fixed {
    position: fixed;
    top: 56px; /* 主导航高度 */
    left: 0;
    width: 100%;
    z-index: 30;
    background-color: rgba(243, 244, 246, 0.95);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* 次级导航高亮样式 */
.subnav-link.active {
    color: #3b82f6;
    border-bottom: 2px solid #3b82f6;
}

/* 次级导航容器 */
.subnav-wrapper {
    padding-top: 56px; /* 主导航高度 */
}

/* 页面内容容器 */
.content-wrapper {
    padding-top: 46px; /* 次级导航高度 */
    display: none;
}

/* 装饰背景图案 */
.wave-pattern-bg {
    position: relative;
}

.wave-pattern-bg::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/wave-pattern.svg');
    background-repeat: no-repeat;
    background-position: center right;
    background-size: 80% auto;
    z-index: -1;
    opacity: 0.3;
}

.dot-pattern-bg {
    background-image: url('../images/dot-pattern.svg');
    background-repeat: repeat;
    background-position: center;
    background-size: 300px 300px;
}

.semi-circle-bg {
    position: relative;
    overflow: hidden;
    background-color: #f5f8ff;
}

.semi-circle-bg::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    width: 600px;
    height: 600px;
    background-image: url('../images/semi-circle.svg');
    background-repeat: no-repeat;
    background-size: contain;
    z-index: 0;
}

/* 增加一个额外的半圆装饰在右侧 */
.semi-circle-bg::after {
    content: '';
    position: absolute;
    bottom: -250px;
    right: -250px;
    width: 700px;
    height: 700px;
    background-image: url('../images/semi-circle.svg');
    background-repeat: no-repeat;
    background-size: contain;
    z-index: 0;
    transform: rotate(180deg);
}

/* 功能部分柱状图设计 */
.feature-columns {
    display: flex;
    align-items: flex-end;
    height: 100%;
    margin-top: 2rem;
}

.feature-column {
    background-color: #fff;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    margin: 0 0.5rem;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    border-top: 4px solid #3b82f6;
}

.feature-column:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 15px rgba(59, 130, 246, 0.2);
}

.feature-icon {
    background-color: rgba(219, 234, 254, 0.8);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.feature-title {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    text-align: center;
    color: #1e40af;
}

.feature-desc {
    font-size: 0.9rem;
    color: #4b5563;
    text-align: center;
    flex-grow: 1;
}

/* 柱状高度设置 */
.col-1 {
    height: 75%;
}

.col-2 {
    height: 83%;
}

.col-3 {
    height: 91%;
}

.col-4 {
    height: 100%;
}

/* Hero区域现代化样式 */
.hero-modern {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0f2761 0%, #2563eb 60%, #60a5fa 100%);
}

.hero-modern::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -10%;
    width: 70%;
    height: 80%;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    filter: blur(60px);
}

.hero-modern::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -10%;
    width: 90%;
    height: 70%;
    background: rgba(79, 70, 229, 0.25);
    border-radius: 50%;
    filter: blur(80px);
}

.hero-content {
    position: relative;
    z-index: 10;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(to right, #f0f9ff, #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
    letter-spacing: -0.5px;
}

.hero-tagline {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 2rem;
    max-width: 500px;
}

.feature-badge {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    border-radius: 12px;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    border-left: 3px solid #60a5fa;
    transform: translateX(-20px);
    opacity: 0;
    animation: slideIn 0.5s forwards;
    width: 90%;
}

.feature-badge span {
    color: rgba(255, 255, 255, 0.95);
    font-weight: 500;
}

@keyframes slideIn {
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.feature-badge:nth-child(1) {
    animation-delay: 0.2s;
}

.feature-badge:nth-child(2) {
    animation-delay: 0.4s;
}

.feature-badge:nth-child(3) {
    animation-delay: 0.6s;
}

.feature-badge:nth-child(4) {
    animation-delay: 0.8s;
}

.feature-badge i {
    font-size: 1.25rem;
    color: #60a5fa;
    margin-right: 0.75rem;
}

.hero-image-wrapper {
    position: relative;
    z-index: 10;
    padding-left: 2rem;
}

.hero-image-container {
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3), 0 10px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.5s ease;
}

.hero-image-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4), 0 15px 25px rgba(0, 0, 0, 0.3);
}

.hero-floating-shape-1 {
    position: absolute;
    width: 80px;
    height: 80px;
    background-color: rgba(59, 130, 246, 0.2);
    border-radius: 24px;
    top: 10%;
    right: 10%;
    animation: float 8s ease-in-out infinite;
    z-index: 1;
}

.hero-floating-shape-2 {
    position: absolute;
    width: 60px;
    height: 60px;
    border: 3px solid rgba(79, 70, 229, 0.2);
    border-radius: 50%;
    bottom: 15%;
    left: 5%;
    animation: float 6s ease-in-out infinite;
    animation-delay: 2s;
    z-index: 1;
}

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

.cta-button {
    display: inline-flex;
    align-items: center;
    background: rgba(59, 130, 246, 0.9);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    margin-top: 1.5rem;
}

.cta-button:hover {
    background: rgba(59, 130, 246, 1);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.6);
    transform: translateY(-2px);
}

.cta-button i {
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
}

.cta-button:hover i {
    transform: translateX(4px);
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-image-container {
        transform: none;
        margin-top: 2rem;
    }
    
    .feature-columns {
        flex-direction: column;
    }
    
    .feature-column {
        height: auto !important;
        margin-bottom: 1.5rem;
        width: 100%;
    }
}

/* FAQ 样式 */
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-answer.show {
    max-height: 500px;
    padding: 1rem 1.5rem;
}

.faq-question i {
    transition: transform 0.3s ease;
}

.faq-question i.rotate-180 {
    transform: rotate(180deg);
}