/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "阿里巴巴普惠体", sans-serif;
}

body {
    background-color: #f8f4e8;
    // background-image: url('paper-texture.png');
    color: #333;
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

/* 自定义字体 */
@font-face {
    font-family: "赣锋体";
    src: url("/assets/fonts/ganfeng.ttf"); /* 修改为正确的相对路径 */
}

/* 主色调定义 */
:host {
    --primary-blue: #2F7DAD;  /* 天青瓷 */
    --primary-green: #5B8C5A; /* 香樟绿 */
    --primary-gold: #D4B16A; /* 庐金 */
    --secondary-gray: #6D6D6D; /* 婺源黛瓦灰 */
    --secondary-red: #C53D43;  /* 井冈山鹃红 */
    --secondary-white: #F0F0F0; /* 鄱阳湖银白 */
}

/* PPT容器 */
.ppt-container {
    width: 100%;
    max-width: 1400px;
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    min-height: 800px;
}

/* 主要内容区域 */
.ppt-main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* 左侧目录 */
.sidebar {
    width: 280px;
    background-color: #f9f9f9;
    border-right: 1px solid #eee;
    padding: 30px 20px;
    overflow-y: auto;
}

.sidebar-title {
    font-family: "赣锋体", serif;
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-blue);
}

.sidebar-menu {
    list-style: none;
}

.sidebar-item {
    margin-bottom: 15px;
}

.sidebar-link {
    display: block;
    padding: 10px 15px;
    color: var(--secondary-gray);
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
    font-size: 1.05rem;
}

.sidebar-link:hover {
    background-color: rgba(47, 125, 173, 0.08);
    color: var(--primary-blue);
}

.sidebar-link.active {
    background-color: rgba(47, 125, 173, 0.15);
    color: var(--primary-blue);
    font-weight: bold;
}

.sidebar-link.active::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 70%;
    background-color: var(--primary-gold);
    border-radius: 0 2px 2px 0;
}

/* 子菜单 */
.submenu {
    list-style: none;
    margin-left: 25px;
    margin-top: 10px;
    display: none;
}

.submenu.active {
    display: block;
}

.submenu-item {
    margin-bottom: 8px;
}

.submenu-link {
    display: block;
    padding: 8px 10px;
    color: var(--secondary-gray);
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.submenu-link:hover {
    background-color: rgba(47, 125, 173, 0.05);
    color: var(--primary-blue);
}

.submenu-link.active {
    background-color: rgba(47, 125, 173, 0.1);
    color: var(--primary-blue);
    font-weight: 500;
}

/* 内容区域 */
.content-area {
    flex: 1;
    padding: 40px 50px;
    overflow-y: auto;
}

.section-header {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    position: relative;
}

.section-number {
    font-family: "赣锋体", serif;
    font-size: 3rem;
    color: var(--primary-blue);
    font-weight: bold;
    margin-right: 20px;
    line-height: 1;
}

.section-title {
    font-family: "赣锋体", serif;
    font-size: 2.2rem;
    color: var(--primary-blue);
    position: relative;
    padding-bottom: 10px;
}

.section-title::after {
    content: "";
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, var(--primary-blue), var(--primary-green));
    margin-top: 10px;
}

.section-desc {
    color: var(--secondary-gray);
    margin-bottom: 40px;
    max-width: 900px;
}

/* 统计卡片 */
.stats-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 50px;
}

.stats-card {
    background-color: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-blue);
}

.stats-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.stats-value {
    font-family: "赣锋体", serif;
    font-size: 2.5rem;
    color: var(--primary-blue);
    font-weight: bold;
    margin-bottom: 5px;
}

.stats-label {
    color: var(--secondary-gray);
    font-size: 1.1rem;
}

/* 内容块 */
.content-block {
    display: none;
}

.content-block.active {
    display: block;
}

.block-title {
    font-family: "赣锋体", serif;
    font-size: 1.8rem;
    color: var(--primary-blue);
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 2px solid #eee;
}

/* 特性卡片 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-bottom: 40px;
}

.feature-card {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid #eee;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.card-header {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    background-color: rgba(47, 125, 173, 0.05);
    border-bottom: 1px solid #eee;
}

.card-icon {
    font-size: 1.5rem;
    margin-right: 15px;
    color: var(--primary-blue);
}

.card-title {
    font-size: 1.2rem;
    color: var(--primary-blue);
    font-weight: 600;
}

.card-content {
    padding: 20px;
}

.card-desc {
    color: var(--secondary-gray);
    margin-bottom: 15px;
}

.card-list {
    list-style: none;
}

.card-list li {
    margin-bottom: 8px;
    color: #555;
    display: flex;
    align-items: center;
}

.card-list li::before {
    content: "•";
    color: var(--primary-blue);
    margin-right: 8px;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background-color: rgba(47, 125, 173, 0.03);
    border-top: 1px solid #eee;
}

.card-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.card-status {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 500;
}

.card-status[status="已上线"] {
    background-color: rgba(91, 140, 90, 0.15);
    color: var(--primary-green);
}

.card-status[status="测试中"] {
    background-color: rgba(212, 177, 106, 0.15);
    color: var(--primary-gold);
}

.card-status[status="开发中"] {
    background-color: rgba(47, 125, 173, 0.15);
    color: var(--primary-blue);
}

.card-status[status="规划中"] {
    background-color: rgba(109, 109, 109, 0.15);
    color: var(--secondary-gray);
}

/* 流程图 */
.flow-chart {
    margin-bottom: 40px;
    padding: 25px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.flow-title {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: 25px;
    font-weight: 600;
}

.flow-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.flow-steps::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background-color: #eee;
    transform: translateY(-50%);
    z-index: 1;
}

.flow-step {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100%;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-blue);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 10px;
    font-weight: bold;
}

.step-label {
    color: var(--secondary-gray);
    font-weight: 500;
}

/* 案例展示 */
.case-studies {
    margin-top: 40px;
}

.case-title {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: 25px;
    font-weight: 600;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.case-card {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    overflow: hidden;
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.case-image {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.case-content {
    padding: 20px;
}

.case-name {
    font-size: 1.2rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 10px;
}

.case-desc {
    color: var(--secondary-gray);
    margin-bottom: 15px;
}

.case-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.case-tag {
    padding: 3px 10px;
    background-color: rgba(47, 125, 173, 0.08);
    color: var(--primary-blue);
    border-radius: 4px;
    font-size: 0.9rem;
}

/* 图表容器 */
.chart-container {
    margin-bottom: 40px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    padding: 25px;
}

.chart-title {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: 25px;
    font-weight: 600;
}

.chart {
    position: relative;
}

.placeholder-text {
    color: var(--secondary-gray);
    font-size: 1.1rem;
}

/* 时间线 */
.timeline {
    margin-bottom: 40px;
}

.timeline-item {
    display: flex;
    margin-bottom: 30px;
}

.timeline-marker {
    min-width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary-blue);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    margin-right: 20px;
    position: relative;
}

.timeline-marker::after {
    content: "";
    position: absolute;
    bottom: -30px;
    left: 50%;
    width: 2px;
    height: 30px;
    background-color: #eee;
}

.timeline-item:last-child .timeline-marker::after {
    display: none;
}

.timeline-content {
    flex: 1;
}

.timeline-title {
    font-size: 1.2rem;
    color: var(--primary-blue);
    font-weight: 600;
    margin-bottom: 5px;
}

.timeline-date {
    color: var(--primary-gold);
    font-weight: 500;
    margin-bottom: 10px;
}

.timeline-desc {
    color: var(--secondary-gray);
}

/* 表格 */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 15px;
    border: 1px solid #eee;
    text-align: left;
}

.table th {
    background-color: rgba(47, 125, 173, 0.05);
    color: var(--primary-blue);
    font-weight: 600;
}

.table tr:hover {
    background-color: rgba(47, 125, 173, 0.03);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .case-grid {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        width: 240px;
    }
}

@media (max-width: 992px) {
    .content-area {
        padding: 30px 40px;
    }
    
    .flow-steps {
        flex-direction: column;
    }
    
    .flow-steps::before {
        top: 0;
        left: 50%;
        right: auto;
        bottom: 0;
        width: 2px;
        height: 100%;
        transform: translateX(-50%);
    }
    
    .flow-step {
        margin-bottom: 30px;
    }
    
    .step-number {
        margin-bottom: 15px;
    }
}

@media (max-width: 768px) {
    .ppt-main {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #eee;
    }
    
    .section-number {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .block-title {
        font-size: 1.5rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-container {
        grid-template-columns: 1fr;
    }
}