.bid-content {
    background-image: url('image/ai_bid.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

#bid-section {
    padding: 0 !important;
}

.section-title {
    width: 57%;
}


.ai-btn {
    background: linear-gradient(90deg, #086DFF 0%, #1ECEFF 100%);
    text-decoration: none;
    color: #ffffff;
    border-radius: 4.44px;
}

.title-main {
    color: #002B73;
    font-size: 4.4rem;
    font-weight: bold;
}

.title-sub {
    color: #002B73;
    font-size: 1.5rem;
    font-weight: normal;

}

/* 添加 .section-title 样式 */
.section .section-content .section-title {
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
    padding-left: 44%;
}

.section .section-content .section-title .title-main {
    font-size: clamp(2rem, 3vw, 5.5rem);
}

.section .section-content .section-title .title-sub {
    font-size: clamp(0.8rem, 2vw, 1.5rem);
    margin-bottom: 40px;
}

.section .section-content .section-title a.ai-btn {
    display: inline-block;
    font-size: clamp(0.9rem, 1.5vw, 1.4rem);
    padding: 0.7em 1.8em;
    width: auto;
    max-width: 100%;
}

.highlight-title {
    color: #086DFF !important;
    background: none !important;
    margin-left: 20px;
}

.highlight-min {
    color: #086DFF;
    margin-right: 20px;
}

.chance-content .section-title {
    width: 50%;
}

.section .chance-content .section-title {
    padding-left: 50%;

}

/* 添加打字动画样式 */
#typing-text {
    overflow: hidden;
    /* 隐藏溢出内容 */
    white-space: nowrap;
    /* 文本不换行 */
    border-right: .15em solid var(--primary);
    /* 光标样式 */
    animation:
        typing 3.5s steps(40, end),
        blink-caret .75s step-end infinite;
}

/* 打字动画 */
@keyframes typing {
    from {
        width: 0
    }

    to {
        width: 100%
    }
}

/* 光标闪烁动画 */
@keyframes blink-caret {

    from,
    to {
        border-color: transparent
    }

    50% {
        border-color: var(--primary)
    }
}

/* 添加光标闪烁动画 */
.typing-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background-color: currentColor;
    animation: blink-caret 0.75s step-end infinite;
}

@keyframes blink-caret {

    from,
    to {
        opacity: 0;
    }

    50% {
        opacity: 1;
    }
}

.title-grid {
    margin-bottom: 40px;
    display: flex;
}

/**** 其他样式 ****/




:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #0ea5e9;
    --accent: #8b5cf6;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --card-bg: #ffffff;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    --border-radius: 16px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', 'Quicksand', sans-serif;
    background: linear-gradient(135deg, #f0f5ff 0%, #f8fafc 100%);
    color: #1e293b;
    line-height: 1.6;
    /* overflow-x: hidden; */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    /* padding-top: 50px; */

}



/* 通用区块样式 */
.section {
    /* padding: 100px 0; */
    position: relative;
}

.section:nth-child(even) {
    background: white;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 10px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray);
    line-height: 1.7;
}

/* 功能卡片 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    box-shadow: var(--card-shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card .icon {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 20px;
    display: inline-flex;
    background: rgba(37, 99, 235, 0.1);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.feature-card:hover .icon {
    background: var(--primary);
    color: white;
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
}

.feature-card p {
    color: var(--gray);
    line-height: 1.7;
}

/* 评估统计 */
.evaluation-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
    margin: 50px 0;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px 20px;
    box-shadow: var(--card-shadow);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(37, 99, 235, 0.1);
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0.8;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.1);
}

.stat-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 10px;
    line-height: 1;
}

.stat-label {
    color: var(--gray);
    font-size: 1.1rem;
    font-weight: 500;
}

/* .process-section{
    padding: 200px 0;
} */

/* 流程步骤 */
.process-flow {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    /* margin: 50px 0; */
    width: 100%;
}

.process-step {
    background: #E2F3FF;
    border-radius: var(--border-radius);
    padding: 35px 25px;
    box-shadow: var(--card-shadow);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.process-step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.process-step:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

.process-step:hover::before {
    opacity: 1;
}

.step-number {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--primary);
    color: white;
    font-size: 15px;
    font-weight: bold;
    width: 42px;
    height: 42px;
    line-height: 42px;
    border-radius: 50%;
}

.step-icon {
    /* font-size: 56px; */
    color: var(--primary);
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.step-icon img {
    width: 110px;
    /* height: 56px; */
}

.process-step:hover .step-icon {
    transform: scale(1.1);
    color: var(--secondary);
}

.step-title {
    color: var(--dark);
    font-weight: 700;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.step-desc {
    color: var(--gray);
    font-size: 1.2rem;
    line-height: 1.6;
}

/* 标签页样式 */
.tabs-container {
    /* margin-top: 50px; */
    background: #E2F3FF;
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    overflow: hidden;
    width: 100%;
}

.tabs-header {
    display: flex;
    /* background: #f1f5f9; */
    background: #ffffff;
    border-bottom: 1px solid #e2e8f0;
}

.tab {
    padding: 16px 24px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    color: var(--gray);
}

.tab.active {
    color: var(--primary);
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary);
}

.tab:hover:not(.active) {
    background: rgba(37, 99, 235, 0.05);
}

.tab-content {
    display: none;
    padding: 15px;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.tab-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.tab-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.preview-card {
    /* background: #f8fafc; */
    background: #ffffff;
    border-radius: 12px;
    padding: 15px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.preview-card:hover {
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.preview-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.preview-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: rgba(37, 99, 235, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
}

.preview-icon i {
    color: var(--primary);
    font-size: 20px;
}

.preview-title {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--dark);
}

.preview-content {
    padding: 5px;
    background: white;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    font-size: 0.95rem;
    line-height: 1.6;
}

.preview-content h4 {
    /* font-size: 1.1rem;
    margin-bottom: 10px; */
    color: var(--dark);
}

.preview-content p {
    margin-bottom: 10px;
    color: var(--dark);
}

.highlight {
    background: rgba(16, 185, 129, 0.1);
    padding: 2px 4px;
    border-radius: 4px;
    color: var(--success);
    font-weight: 500;
}

.preview-footer {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--gray);
}

.preview-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.badge-info {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.suggestion-list {
    list-style: none;
    padding: 0;
    margin: 15px 0 0;
}

.suggestion-list li {
    padding: 4px 0;
    display: flex;
    align-items: center;
    color: var(--dark);
}

.suggestion-list li::before {
    content: '•';
    color: var(--primary);
    font-weight: bold;
    display: inline-block;
    width: 1em;
    margin-right: 10px;
}

.simulation-bar {
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    margin: 10px 0;
    overflow: hidden;
}

.simulation-progress {
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
    width: 0;
    transition: width 1.5s ease-in-out;
}

.simulation-bar:hover .simulation-progress {
    width: var(--progress-width);
}

/* 应用场景部分 */
.use-cases {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: var(--border-radius);
    padding: 50px;
    margin-top: 60px;
}

.use-cases-header {
    text-align: center;
    margin-bottom: 40px;
}

.use-cases-header h2 {
    font-size: 2.2rem;
    color: var(--dark);
    margin-bottom: 15px;
}

.use-cases-header p {
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
}

.case-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--card-shadow);
    display: flex;
    gap: 25px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.12);
}

.case-icon {
    min-width: 70px;
    height: 70px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--primary);
}

.case-content h3 {
    margin-bottom: 15px;
    color: var(--dark);
}

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

.case-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.case-tag {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* 用户价值部分 */
.value-section {
    /* background: linear-gradient(135deg, #4aa8eb 0%, #59b1f0 100%); */
    /* color: white; */
    border-radius: var(--border-radius);
    /* padding:  60px 0; */
    /* margin-top: 60px; */
}

/* 间距工具类 */
.mt-10 {
    margin-top: 16px;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.value-card {
    background: #E2F3FF;
    border-radius: 16px;
    padding: 50px;
    text-align: center;
    backdrop-filter: blur(10px);
    /* border: 1px solid rgba(255, 255, 255, 0.2); */
    transition: all 0.3s ease;
    border-radius: var(--border-radius);
    /* padding: 35px 25px; */
    box-shadow: var(--card-shadow);

}

.value-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.value-card .icon {
    /* font-size: 48px; */
    margin-bottom: 20px;
    color: white;
}

.value-card .icon img {
    width: 110px;
    /* height: 48px; */
}

.value-card h3 {
    margin-bottom: 15px;
    font-size: 1.7rem;
}

.value-card p {
    opacity: 0.9;
    font-size: 1.3rem;
}

/* 单列布局 */
.single-column {
    max-width: 800px;
    margin: 0 auto;
}

/* 页脚 */
.footer {
    background: var(--dark);
    padding: 60px 20px 30px;
    color: #cbd5e1;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.contact-info {
    list-style: none;
}

.contact-info li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.contact-info i {
    color: var(--primary);
    font-size: 20px;
    min-width: 24px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    color: white;
    font-size: 18px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #94a3b8;
    font-size: 0.9rem;
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade {
    opacity: 0;
}

.fade.show {
    opacity: 1;
    animation: fadeIn 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.1s;
}

.delay-2 {
    animation-delay: 0.2s;
}

.delay-3 {
    animation-delay: 0.3s;
}

.delay-4 {
    animation-delay: 0.4s;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .hero {
        padding: 100px 20px;
    }

    .hero h1 {
        font-size: 2.8rem;
    }

    .section {
        padding: 80px 0;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }

    .navbar .menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .tab-grid {
        grid-template-columns: 1fr;
    }

    .case-card {
        flex-direction: column;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 80px 20px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .section {
        padding: 60px 0;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .cta-btn {
        width: 100%;
        text-align: center;
        padding: 14px 20px;
    }

    .tabs-header {
        flex-direction: column;
    }
}

/* 新增样式：财务信息卡片 */
.financial-info-card {
    border-left: 4px solid var(--success);
    background-color: rgba(16, 185, 129, 0.03);
}

.financial-info-card .preview-icon {
    background-color: rgba(16, 185, 129, 0.1);
}

.financial-info-card .preview-icon i {
    color: var(--success);
}

/* 新增样式：项目理解卡片 */
.project-understanding-card {
    border-left: 4px solid var(--accent);
    background-color: rgba(139, 92, 246, 0.03);
}

.project-understanding-card .preview-icon {
    background-color: rgba(139, 92, 246, 0.1);
}

.project-understanding-card .preview-icon i {
    color: var(--accent);
}

/* 新增样式：财务指标图表容器 */
.financial-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 15px;
}

.metric-card {
    background: white;
    border-radius: 8px;
    padding: 15px;
    border: 1px solid #e2e8f0;
    text-align: center;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.metric-label {
    color: var(--gray);
    font-size: 0.85rem;
}

.metric-trend {
    font-size: 0.8rem;
    margin-top: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.trend-up {
    color: var(--success);
}

.trend-down {
    color: var(--danger);
}

/* 项目理解评分 */
.project-score {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    padding: 12px;
    background: rgba(37, 99, 235, 0.05);
    border-radius: 8px;
}

.score-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
}

.score-label {
    font-size: 0.9rem;
    color: var(--gray);
}

.score-description {
    font-size: 0.9rem;
    color: var(--gray);
    margin-top: 8px;
}

/* 独创性保障部分优化 */
.originality-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.originality-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.originality-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.originality-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e2e8f0;
}

.originality-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
}

.originality-icon i {
    font-size: 18px;
}

.originality-title {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--dark);
}

.originality-content {
    padding: 10px 0;
    font-size: 0.95rem;
    line-height: 1.6;
    min-height: 180px;
    color: var(--dark);
}

.originality-content p {
    margin-bottom: 10px;
}

.originality-footer {
    display: flex;
    justify-content: space-between;
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid #e2e8f0;
    font-size: 0.9rem;
    color: var(--gray);
}

.originality-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* 独创性保障部分新增样式 */
.core-content-card .originality-icon {
    background: rgba(37, 99, 235, 0.1);
}

.core-content-card .originality-icon i {
    color: var(--primary);
}

.core-content-card .originality-title {
    color: var(--primary);
}

.analysis-card .originality-icon {
    background: rgba(16, 185, 129, 0.1);
}

.analysis-card .originality-icon i {
    color: var(--success);
}

.analysis-card .originality-title {
    color: var(--success);
}

.core-content-text {
    background: #f8fafc;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 15px;
}

.analysis-list {
    list-style: none;
    padding: 0;
    margin: 15px 0;
}

.analysis-list li {
    padding: 8px 0;
    display: flex;
    align-items: flex-start;
}

.analysis-list li::before {
    content: '✓';
    color: var(--success);
    font-weight: bold;
    display: inline-block;
    width: 1.5em;
    margin-right: 8px;
}

.similarity-meter {
    margin-top: 15px;
}

.similarity-meter-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
    font-size: 0.85rem;
    color: var(--gray);
}

.similarity-meter-bar {
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
}

.similarity-meter-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--success), var(--primary));
    border-radius: 4px;
    width: 12%;
}