/* 墨江德云科技 - 企业官网样式 */
/* 主题：清新商务，商务蓝主色调 */

/* ========== 基础重置 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 配色方案 */
    --canvas-bg: #fcfcfc;
    --sky-wash: #f0f4fe;
    --midnight-blue: #020520;
    --graphite-gray: #14141e;
    --slate-gray: #374151;
    --fog-gray: #696a72;
    --deep-fog: #95959b;
    --steel-gray: #6b7280;
    --signal-blue: #145aff;
    --action-blue: #0f1f3d;
    --emerald-green: #16ca2e;
    --coral-red: #f26052;
    --sky-info: #0099ff;
    --amber-tag: #ffa64d;
    
    /* 渐变 */
    --hero-gradient: radial-gradient(97.8% 181.6% at 53.7% 50%, rgb(20, 20, 30) 0%, rgba(88, 107, 141, 0.8) 100%);
    --blue-gradient: linear-gradient(rgb(59, 130, 246) 0%, rgb(20, 90, 255) 100%);
    
    /* 阴影 */
    --card-shadow: rgba(0, 0, 0, 0.1) 0px 0px 4px -2px;
    --card-shadow-hover: rgba(0, 0, 0, 0.15) 0px 4px 12px -2px;
    --feature-shadow: rgba(0, 0, 0, 0.082) 0px 0.36px 1.81px -1.42px, 
                      rgba(0, 0, 0, 0.07) 0px 1.37px 6.87px -2.83px, 
                      rgba(0, 0, 0, 0.016) 0px 6px 30px -4.25px;
    
    /* 圆角 */
    --radius-pill: 100px;
    --radius-card: 8px;
    --radius-badge: 4px;
    --radius-image: 16px;
    --radius-input: 12px;
    --radius-modal: 32px;
    --radius-button: 12px;
    --radius-large-card: 40px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--slate-gray);
    background-color: var(--canvas-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== 排版 ========== */
h1, h2, h3, h4, h5, h6 {
    color: var(--midnight-blue);
    font-weight: 600;
}

h1 {
    font-size: 56px;
    line-height: 1.05;
    letter-spacing: -1.51px;
}

h2 {
    font-size: 40px;
    line-height: 1.08;
    letter-spacing: -0.76px;
}

h3 {
    font-size: 22px;
    line-height: 1.25;
    letter-spacing: -0.22px;
}

h4 {
    font-size: 18px;
    line-height: 1.4;
    letter-spacing: -0.16px;
}

p {
    color: var(--slate-gray);
    line-height: 1.6;
}

a {
    color: var(--action-blue);
    text-decoration: none;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--signal-blue);
}

/* ========== 布局 ========== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
}

.section-alt {
    background-color: var(--sky-wash);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    color: var(--fog-gray);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: rgba(252, 252, 252, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 600;
    color: var(--midnight-blue);
}

.navbar-logo i {
    font-size: 28px;
    color: var(--signal-blue);
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.navbar-menu a {
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    color: var(--slate-gray);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    background: var(--sky-wash);
    color: var(--midnight-blue);
}

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

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-button);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--blue-gradient);
    color: #ffffff;
    font-weight: 600;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(20, 90, 255, 0.3);
    color: #ffffff;
}

.btn-outline {
    background: rgba(255, 255, 255, 0.8);
    color: var(--action-blue);
    border: 1px solid var(--action-blue);
}

.btn-outline:hover {
    background: var(--action-blue);
    color: #ffffff;
}

.btn-ghost {
    background: var(--canvas-bg);
    color: var(--signal-blue);
    border: 1px solid rgba(20, 90, 255, 0.3);
    border-radius: var(--radius-pill);
    padding: 14px 32px;
}

.btn-ghost:hover {
    background: var(--sky-wash);
    border-color: var(--signal-blue);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

/* ========== 英雄区 ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    background: var(--hero-gradient);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(88, 107, 141, 0.3) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-pill);
    color: rgba(255, 255, 255, 0.9);
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero h1 {
    color: #ffffff;
    margin-bottom: 24px;
    font-size: 56px;
}

.hero p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ========== 卡片 ========== */
.card {
    background: #ffffff;
    border-radius: var(--radius-card);
    box-shadow: var(--card-shadow);
    padding: 24px;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-4px);
}

.card-large {
    border-radius: var(--radius-large-card);
    padding: 52px 72px;
    box-shadow: var(--feature-shadow);
}

/* ========== 服务卡片 ========== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    text-align: center;
    padding: 40px 24px;
}

.service-card .icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--sky-wash);
    border-radius: 16px;
    color: var(--signal-blue);
    font-size: 28px;
}

.service-card h3 {
    margin-bottom: 12px;
}

.service-card p {
    color: var(--fog-gray);
    font-size: 14px;
    margin-bottom: 20px;
}

.service-card .btn-link {
    color: var(--action-blue);
    font-weight: 500;
    font-size: 14px;
}

.service-card .btn-link:hover {
    color: var(--signal-blue);
}

/* ========== 新闻卡片 ========== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-card {
    overflow: hidden;
}

.news-card-image {
    height: 180px;
    background: var(--sky-wash);
    border-radius: var(--radius-image) var(--radius-image) 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--signal-blue);
    font-size: 48px;
    margin: -24px -24px 20px -24px;
}

.news-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 12px;
    color: var(--deep-fog);
}

.news-card-meta .category {
    background: rgba(20, 90, 255, 0.1);
    color: var(--signal-blue);
    padding: 4px 8px;
    border-radius: var(--radius-badge);
    font-weight: 500;
}

.news-card h3 {
    font-size: 16px;
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-card p {
    color: var(--fog-gray);
    font-size: 13px;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========== 案例卡片 ========== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    padding: 32px;
}

.case-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.case-card-logo {
    width: 48px;
    height: 48px;
    background: var(--sky-wash);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--signal-blue);
    font-size: 20px;
}

.case-card-info h4 {
    font-size: 14px;
    margin-bottom: 4px;
}

.case-card-info span {
    font-size: 12px;
    color: var(--deep-fog);
}

.case-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.case-card p {
    color: var(--fog-gray);
    font-size: 14px;
    margin-bottom: 16px;
}

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

.case-card-tags span {
    background: var(--sky-wash);
    color: var(--slate-gray);
    padding: 4px 10px;
    border-radius: var(--radius-badge);
    font-size: 12px;
}

/* ========== 团队卡片 ========== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.team-card {
    text-align: center;
    padding: 32px 20px;
}

.team-card-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    background: var(--sky-wash);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--signal-blue);
    font-size: 32px;
}

.team-card h4 {
    margin-bottom: 4px;
}

.team-card .position {
    color: var(--signal-blue);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 12px;
}

.team-card p {
    color: var(--fog-gray);
    font-size: 13px;
}

/* ========== 时间线 ========== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--sky-wash);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    padding: 20px 0;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-item:nth-child(odd) .timeline-content {
    text-align: right;
    margin-right: 60px;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 60px;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background: var(--signal-blue);
    border-radius: 50%;
    border: 3px solid var(--canvas-bg);
    box-shadow: 0 0 0 3px var(--sky-wash);
}

.timeline-content {
    flex: 1;
}

.timeline-year {
    font-size: 24px;
    font-weight: 600;
    color: var(--signal-blue);
    margin-bottom: 8px;
}

.timeline-event {
    color: var(--slate-gray);
    font-size: 14px;
}

/* ========== 联系表单 ========== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info {
    padding: 40px;
    background: var(--sky-wash);
    border-radius: var(--radius-large-card);
}

.contact-info h3 {
    margin-bottom: 24px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-info-item i {
    width: 40px;
    height: 40px;
    background: #ffffff;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--signal-blue);
    font-size: 16px;
    flex-shrink: 0;
}

.contact-info-item h4 {
    font-size: 14px;
    margin-bottom: 4px;
}

.contact-info-item p {
    color: var(--fog-gray);
    font-size: 14px;
}

.contact-form {
    padding: 40px;
    background: #ffffff;
    border-radius: var(--radius-large-card);
    box-shadow: var(--feature-shadow);
}

.contact-form h3 {
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--slate-gray);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #e5e5e5;
    border-radius: var(--radius-input);
    font-size: 14px;
    color: var(--graphite-gray);
    background: var(--canvas-bg);
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--signal-blue);
    box-shadow: 0 0 0 3px rgba(20, 90, 255, 0.1);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* ========== 页脚 ========== */
.footer {
    background: var(--midnight-blue);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    color: #ffffff;
    margin-bottom: 16px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.2s ease;
}

.footer-social a:hover {
    background: var(--signal-blue);
    color: #ffffff;
}

.footer-links h4 {
    color: #ffffff;
    font-size: 14px;
    margin-bottom: 16px;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: #ffffff;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

/* ========== 面包屑 ========== */
.breadcrumb {
    padding: 100px 0 20px;
    background: var(--sky-wash);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    font-size: 13px;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb-list li:not(:last-child)::after {
    content: '/';
    color: var(--deep-fog);
}

.breadcrumb-list a {
    color: var(--fog-gray);
}

.breadcrumb-list a:hover {
    color: var(--signal-blue);
}

.breadcrumb-list .current {
    color: var(--slate-gray);
}

/* ========== 详情页 ========== */
.detail-header {
    padding: 40px 0 60px;
    background: var(--sky-wash);
    text-align: center;
}

.detail-header h1 {
    font-size: 40px;
    margin-bottom: 16px;
}

.detail-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--fog-gray);
    font-size: 14px;
}

.detail-meta .category {
    background: rgba(20, 90, 255, 0.1);
    color: var(--signal-blue);
    padding: 4px 12px;
    border-radius: var(--radius-badge);
    font-weight: 500;
}

.detail-content {
    padding: 60px 0;
}

.detail-content-inner {
    max-width: 800px;
    margin: 0 auto;
}

.detail-content p {
    margin-bottom: 20px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--slate-gray);
}

.detail-content h2 {
    font-size: 24px;
    margin: 40px 0 20px;
}

.detail-content h3 {
    font-size: 20px;
    margin: 32px 0 16px;
}

.detail-content ul,
.detail-content ol {
    margin: 20px 0;
    padding-left: 24px;
}

.detail-content li {
    margin-bottom: 12px;
    line-height: 1.7;
    color: var(--slate-gray);
}

.detail-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 32px 0;
}

.detail-feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--sky-wash);
    border-radius: var(--radius-card);
}

.detail-feature-item i {
    color: var(--signal-blue);
    font-size: 18px;
}

.detail-feature-item span {
    font-size: 14px;
    color: var(--slate-gray);
}

.detail-benefits {
    background: var(--sky-wash);
    border-radius: var(--radius-large-card);
    padding: 40px;
    margin: 40px 0;
}

.detail-benefits h3 {
    margin-bottom: 24px;
    text-align: center;
}

.detail-benefits-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.detail-benefit-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.detail-benefit-item i {
    color: var(--emerald-green);
    font-size: 16px;
}

.detail-benefit-item span {
    font-size: 14px;
    color: var(--slate-gray);
}

/* ========== 列表页 ========== */
.list-page {
    padding: 100px 0 60px;
    min-height: 100vh;
}

.list-page-header {
    text-align: center;
    padding: 40px 0 60px;
}

.list-page-header h1 {
    font-size: 40px;
    margin-bottom: 16px;
}

.list-page-header p {
    color: var(--fog-gray);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .services-grid,
    .news-grid,
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 36px;
    }
    
    h2 {
        font-size: 28px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .navbar-menu {
        display: none;
    }
    
    .hero {
        padding: 100px 24px 60px;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .services-grid,
    .news-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(odd) {
        flex-direction: row;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        text-align: left;
        margin-left: 60px;
        margin-right: 0;
    }
    
    .timeline-dot {
        left: 20px;
    }
    
    .detail-features,
    .detail-benefits-list {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .card-large {
        padding: 32px 24px;
    }
}

/* ========== 动画 ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

/* 滚动动画 */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}