:root {
    /* 核心色调：升级版 */
    --primary-bg: #FEFDF9;
    --secondary-bg: #F9F6F2;
    --white: #FFFFFF;
    
    --accent-color: #FF8C69; /* 主色：柔橙 */
    --accent-hover: #FF7043;
    --accent-light: rgba(255, 140, 105, 0.1);
    
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #999999;
    
    --border-color: #EEEEEE;
    --border-radius: 16px;
    --shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.04);
    --shadow-hover: 0 20px 50px rgba(0, 0, 0, 0.08);
    
    --font-main: "Noto Sans SC", "PingFang SC", sans-serif;
    --font-serif: "Noto Serif SC", serif; /* 用于标题，增加文化感 */
}

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

html, body {
    width: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--font-main);
    background-color: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.7;
}

h1, h2, h3, h4 {
    font-weight: 700;
    color: var(--text-primary);
}

h2 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 15px;
    letter-spacing: -0.5px;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 100px 0;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 60px;
    font-size: 18px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 按钮体系 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-lg {
    padding: 16px 40px;
    font-size: 18px;
    background-color: var(--accent-color);
    color: #fff;
    box-shadow: 0 8px 20px rgba(255, 140, 105, 0.3);
}

.btn-lg:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 12px 25px rgba(255, 140, 105, 0.4);
}

.btn-outline {
    border: 1px solid var(--text-primary);
    color: var(--text-primary);
    margin-left: 15px;
}

.btn-outline:hover {
    background-color: var(--text-primary);
    color: #fff;
}

/* 导航栏 */
header {
    background-color: rgba(254, 253, 249, 0.85);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.03);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    font-family: var(--font-serif);
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-links a {
    font-size: 16px;
    color: var(--text-primary);
    position: relative;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent-color);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: var(--text-primary);
    transition: all 0.3s;
}

/* Hero Section (升级版) */
.hero {
    position: relative;
    padding: 120px 0 100px;
    overflow: hidden;
}

/* 背景纹理 */
.hero-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(#FF8C69 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.05;
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text .badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: #FFF0E6;
    color: var(--accent-color);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-text h1 {
    font-size: 56px;
    line-height: 1.2;
    margin-bottom: 24px;
    font-family: var(--font-serif);
}

.hero-text p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-data {
    display: flex;
    gap: 50px;
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid rgba(0,0,0,0.05);
}

.data-item strong {
    display: block;
    font-size: 28px;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 5px;
}

.data-item span {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Hero Visual Card (模拟界面) */
.hero-visual-card {
    position: relative;
    width: 100%;
    height: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-interface {
    width: 300px;
    height: 580px;
    background: #fff;
    border-radius: 40px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
    position: relative;
    z-index: 10;
    border: 8px solid #fff;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.app-header {
    height: 60px;
    background: #FAFAFA;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #999;
    border-bottom: 1px solid #eee;
}

.app-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    background: linear-gradient(180deg, #fff 0%, #FFF9F6 100%);
}

.match-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 2px solid var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
    position: relative;
}

.match-circle .pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--accent-color);
    opacity: 0.1;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.1; }
    50% { transform: scale(1.4); opacity: 0; }
    100% { transform: scale(1); opacity: 0; }
}

.match-info {
    width: 100%;
    text-align: center;
}

.match-line {
    height: 10px;
    background: #F0F0F0;
    border-radius: 5px;
    margin: 0 auto 10px;
}

.match-info p {
    font-size: 14px;
    color: var(--text-primary);
    margin-top: 20px;
    font-weight: 500;
}

.service-tags {
    margin-top: 30px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.service-tags span {
    font-size: 10px;
    padding: 4px 10px;
    background: #FFF0E6;
    color: var(--accent-color);
    border-radius: 20px;
}

.deco-card {
    position: absolute;
    background: #fff;
    padding: 15px 25px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    z-index: 12;
    white-space: nowrap;
}

.card-1 {
    top: 100px;
    right: 20px;
    animation: float 4s ease-in-out infinite;
}

.card-2 {
    bottom: 120px;
    left: 20px;
    animation: float 4s ease-in-out infinite 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* 软件整体功能介绍 */
.software-intro {
    background-color: #fff;
    border-bottom: 1px solid var(--border-color);
}

.software-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.software-card {
    background: var(--secondary-bg);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.software-card:hover {
    background: #fff;
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-light);
    transform: translateY(-5px);
}

.sw-icon-box {
    width: 60px;
    height: 60px;
    background: #fff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.software-card h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.sw-features {
    list-style: none;
    padding: 0;
}

.sw-features li {
    margin-bottom: 15px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    padding-left: 15px;
}

.sw-features li::before {
    content: "•";
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.sw-features strong {
    color: var(--text-primary);
    font-weight: 600;
}

@media (max-width: 768px) {
    .software-grid {
        grid-template-columns: 1fr;
    }
}

/* 服务项目 */
.services {
    background-color: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    transition: all 0.3s;
    border: 1px solid var(--border-color);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}

.service-img-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

.service-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.service-features li {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 8px;
}

/* 服务流程 */
.process {
    background-color: var(--secondary-bg);
}

.process-steps {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-top: 60px;
}

.step-item {
    text-align: center;
    flex: 1;
    padding: 0 10px;
}

.step-num {
    font-size: 40px;
    font-weight: 700;
    color: rgba(255, 140, 105, 0.2);
    font-family: var(--font-serif);
    margin-bottom: -20px;
    position: relative;
    z-index: 0;
}

.step-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.step-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

.step-arrow {
    font-size: 24px;
    color: #DDD;
    margin-top: 25px;
}

/* 安全保障 */
.features-bg {
    background: #fff;
    overflow: hidden;
}

.split-layout {
    display: flex;
    align-items: center;
    gap: 80px;
}

.split-content {
    flex: 1;
}

.split-content h2 {
    text-align: left;
    margin-bottom: 30px;
}

.desc {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.check-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 15px;
    color: var(--text-primary);
}

.link-btn {
    display: inline-block;
    margin-top: 20px;
    color: var(--accent-color);
    font-weight: 500;
    border-bottom: 1px solid var(--accent-color);
}

.split-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.shield-graphic {
    position: relative;
    width: 400px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.shield-center {
    width: 160px;
    height: 180px;
    background: var(--accent-color);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 20px 40px rgba(255, 140, 105, 0.4);
    z-index: 10;
}

.shield-center span {
    margin-top: 10px;
    font-weight: 600;
}

.orbit-item {
    position: absolute;
    padding: 8px 16px;
    background: #fff;
    border-radius: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.item-1 { top: 20px; left: 50%; transform: translateX(-50%); }
.item-2 { top: 50%; right: 0; transform: translateY(-50%); }
.item-3 { bottom: 20px; left: 50%; transform: translateX(-50%); }
.item-4 { top: 50%; left: 0; transform: translateY(-50%); }

/* 行业资讯 (新闻) */
.news {
    background-color: var(--secondary-bg);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 50px;
}

.view-all {
    font-size: 14px;
    color: var(--text-secondary);
    border: 1px solid #ddd;
    padding: 8px 20px;
    border-radius: 30px;
}

.news-grid-v2 {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 40px;
}

.news-featured {
    background: #fff;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
}

.featured-content {
    padding: 30px;
}

.news-tag {
    font-size: 12px;
    color: var(--accent-color);
    background: rgba(255, 140, 105, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 15px;
    display: inline-block;
}

.news-featured h3 {
    font-size: 22px;
    margin-bottom: 15px;
    line-height: 1.4;
}

.read-more {
    font-size: 14px;
    color: var(--accent-color);
    font-weight: 500;
}

.news-list-v2 {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-row {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    box-shadow: var(--shadow-soft);
    transition: transform 0.3s;
}

.news-row:hover {
    transform: translateX(5px);
}

.date-box {
    background: #F9F9F9;
    padding: 10px;
    border-radius: 8px;
    text-align: center;
    min-width: 60px;
}

.date-box .day {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.date-box .month {
    font-size: 12px;
    color: var(--text-light);
}

.news-summary h4 {
    font-size: 16px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-summary p {
    font-size: 13px;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 行业解决方案 */
.solutions {
    background-color: var(--secondary-bg);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.solution-item {
    background: #fff;
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s;
    border: 1px solid rgba(0,0,0,0.03);
}

.solution-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.sol-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.solution-item h3 {
    font-size: 18px;
    margin-bottom: 15px;
}

.solution-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 40px;
}

.solution-item .tag {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 10px 0;
    background: var(--accent-light);
    color: var(--accent-color);
    font-size: 12px;
    font-weight: 600;
}

/* 技术硬核优势 */
.tech-core {
    background-color: #2b2b2b; /* 深色背景体现技术感 */
    color: #fff;
}

.tech-core h2 {
    color: #fff;
}

.tech-core .section-subtitle {
    color: #bbb;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.tech-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 30px;
    border-radius: 12px;
    transition: all 0.3s;
}

.tech-card:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--accent-color);
}

.tech-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.tech-header h4 {
    color: #fff;
    font-size: 18px;
    margin: 0;
}

.tech-icon-sm {
    font-size: 24px;
}

.tech-card p {
    color: #aaa;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

/* B2B 按钮样式更新 */
.btn-b2b {
    background: #fff;
    color: var(--accent-color);
    border: none;
    font-weight: 600;
}

.btn-b2b:hover {
    background: #f0f0f0;
    color: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-b2b-outline {
    background: transparent;
    border: 1px solid #fff;
    color: #fff;
}

.btn-b2b-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
    color: #fff;
}

@media (max-width: 768px) {
    .software-grid, .solutions-grid, .tech-grid {
        grid-template-columns: 1fr;
    }
}

/* 底部 CTA */
.cta-section {
    background-color: var(--secondary-bg);
    padding-bottom: 80px;
}

.cta-box {
    background: linear-gradient(135deg, var(--accent-color), #FF7043);
    border-radius: 24px;
    padding: 60px;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.cta-box h2 {
    color: #fff;
    margin-bottom: 15px;
}

.cta-box p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.cta-btns {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.btn-store {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: #fff;
    padding: 12px 24px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-store:hover {
    background: #fff;
    color: var(--accent-color);
}

/* Footer */
footer {
    background-color: #2D2D2D;
    color: #ccc;
    padding: 80px 0 30px;
    font-size: 14px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 2fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
    border-bottom: 1px solid #444;
    padding-bottom: 60px;
}

.logo.white {
    color: #fff;
    margin-bottom: 20px;
}

.footer-brand p {
    line-height: 1.8;
    margin-bottom: 25px;
    color: #999;
}

.social-links a {
    color: #fff;
    margin-right: 20px;
    font-size: 14px;
}

.footer-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.footer-nav dt {
    color: #fff;
    font-size: 16px;
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-nav dd {
    margin-bottom: 12px;
}

.footer-nav a:hover {
    color: var(--accent-color);
}

.footer-contact h3 {
    color: var(--accent-color);
    font-size: 24px;
    margin-bottom: 10px;
}

.btn-contact {
    margin-top: 20px;
    padding: 10px 25px;
    background: transparent;
    border: 1px solid #666;
    color: #fff;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-contact:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    color: #666;
}

/* 动画类 */
.animate-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

/* 移动端适配 */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: #fff;
        flex-direction: column;
        justify-content: center;
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        
        /* 增加 visibility 控制，防止侧滑看到菜单 */
        visibility: hidden; 
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1), visibility 0s linear 0.4s;
    }

    .nav-links.active {
        right: 0;
        visibility: visible;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1), visibility 0s linear 0s;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 36px;
    }

    .hero-data {
        justify-content: center;
        flex-wrap: wrap;
        gap: 30px;
    }

    .hero-visual-card {
        height: 400px;
        margin-top: 40px;
    }

    .app-interface {
        width: 260px;
        height: 450px;
    }

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

    .process-steps {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }

    .step-arrow {
        transform: rotate(90deg);
        margin: 10px 0;
    }

    .split-layout {
        flex-direction: column;
    }

    .split-content h2 {
        text-align: center;
    }

    .news-grid-v2 {
        grid-template-columns: 1fr;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-nav {
        grid-template-columns: repeat(2, 1fr);
    }
}