/* ========================================
   郑州尧图企业管理咨询有限公司 - glsqs.com
   建筑工程风 | 深灰 + 水泥白 + 藏蓝
   ======================================== */

:root {
    --color-deep-gray: #2c3e50;
    --color-cement-white: #f5f5f0;
    --color-navy-blue: #1a3a5c;
    --color-accent: #d4af37;
    --color-text-dark: #333333;
    --color-text-light: #666666;
    --color-border: #e0e0e0;
    --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; background-color: var(--color-cement-white); color: var(--color-text-dark); line-height: 1.6; overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: var(--transition-smooth); }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: 1400px; margin: 0 auto; padding: 0 20px; }
.header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: linear-gradient(135deg, var(--color-deep-gray) 0%, var(--color-navy-blue) 100%); padding: 15px 0; transition: var(--transition-smooth); }
.header.scrolled { background: rgba(44, 62, 80, 0.98); box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2); }
.nav-container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo img { height: 45px; width: auto; }
.logo-text { font-size: 22px; font-weight: 700; color: #fff; letter-spacing: 1px; }
.nav-menu { display: flex; list-style: none; gap: 8px; }
.nav-menu a { display: block; padding: 12px 20px; color: rgba(255, 255, 255, 0.9); font-size: 15px; font-weight: 500; border-radius: 4px; transition: var(--transition-smooth); }
.nav-menu a:hover, .nav-menu a.active { background: rgba(255, 255, 255, 0.15); color: #fff; }
.hamburger { display: none; flex-direction: column; cursor: pointer; gap: 5px; }
.hamburger span { width: 28px; height: 3px; background: #fff; border-radius: 2px; transition: var(--transition-smooth); }
.footer { background: linear-gradient(135deg, var(--color-deep-gray) 0%, var(--color-navy-blue) 100%); color: #fff; padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; margin-bottom: 40px; }
.footer-section h4 { font-size: 18px; margin-bottom: 20px; color: var(--color-accent); position: relative; padding-bottom: 10px; }
.footer-section h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 40px; height: 2px; background: var(--color-accent); }
.footer-section ul { list-style: none; }
.footer-section ul li { margin-bottom: 12px; }
.footer-section a { color: rgba(255, 255, 255, 0.8); font-size: 14px; }
.footer-section a:hover { color: var(--color-accent); padding-left: 5px; }
.footer-contact p { color: rgba(255, 255, 255, 0.8); font-size: 14px; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.15); padding-top: 30px; text-align: center; color: rgba(255, 255, 255, 0.6); font-size: 14px; }
.hero { position: relative; height: 100vh; min-height: 600px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--color-deep-gray) 0%, var(--color-navy-blue) 100%); overflow: hidden; }
.hero::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: url('../images/banner-bg.jpg') center/cover no-repeat; opacity: 0.2; }
.hero-content { position: relative; z-index: 2; max-width: 800px; padding: 80px 20px; text-align: center; }
.hero-title { font-size: 56px; font-weight: 800; color: #fff; margin-bottom: 20px; line-height: 1.2; animation: fadeInUp 1s ease-out; }
.hero-subtitle { font-size: 22px; color: rgba(255, 255, 255, 0.9); margin-bottom: 40px; animation: fadeInUp 1s ease-out 0.3s both; }
.hero-btn { display: inline-block; padding: 16px 40px; background: var(--color-accent); color: var(--color-deep-gray); font-size: 16px; font-weight: 600; border-radius: 4px; transition: var(--transition-smooth); animation: fadeInUp 1s ease-out 0.6s both; }
.hero-btn:hover { background: #fff; transform: translateY(-3px); box-shadow: 0 10px 30px rgba(212, 175, 55, 0.4); }
.advantages { padding: 100px 0; background: #fff; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-title { font-size: 42px; font-weight: 700; color: var(--color-deep-gray); margin-bottom: 15px; position: relative; display: inline-block; }
.section-title::after { content: ''; position: absolute; bottom: -10px; left: 50%; transform: translateX(-50%); width: 80px; height: 4px; background: linear-gradient(90deg, var(--color-navy-blue), var(--color-accent)); }
.section-desc { font-size: 18px; color: var(--color-text-light); max-width: 700px; margin: 30px auto 0; }
.advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.advantage-card { background: var(--color-cement-white); padding: 40px 30px; border-radius: 8px; text-align: center; transition: var(--transition-smooth); border: 1px solid var(--color-border); position: relative; overflow: hidden; }
.advantage-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--color-navy-blue), var(--color-accent)); transform: scaleX(0); transition: var(--transition-smooth); }
.advantage-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-hover); }
.advantage-card:hover::before { transform: scaleX(1); }
.advantage-icon { width: 80px; height: 80px; margin: 0 auto 25px; background: linear-gradient(135deg, var(--color-navy-blue), var(--color-deep-gray)); border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.advantage-icon img { width: 40px; height: 40px; }
.advantage-card h3 { font-size: 20px; color: var(--color-deep-gray); margin-bottom: 15px; }
.advantage-card p { font-size: 14px; color: var(--color-text-light); line-height: 1.8; }
.services { padding: 100px 0; background: var(--color-cement-white); }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 35px; }
.service-card { background: #fff; border-radius: 8px; overflow: hidden; box-shadow: var(--shadow-card); transition: var(--transition-smooth); }
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); }
.service-image { height: 220px; overflow: hidden; }
.service-image img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition-smooth); }
.service-card:hover .service-image img { transform: scale(1.1); }
.service-content { padding: 30px; }
.service-content h3 { font-size: 22px; color: var(--color-deep-gray); margin-bottom: 15px; }
.service-content p { font-size: 14px; color: var(--color-text-light); line-height: 1.8; margin-bottom: 20px; }
.service-link { display: inline-flex; align-items: center; gap: 8px; color: var(--color-navy-blue); font-weight: 600; font-size: 15px; }
.service-link:hover { color: var(--color-accent); }
.cases { padding: 100px 0; background: #fff; }
.cases-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 25px; }
.case-card { position: relative; border-radius: 8px; overflow: hidden; box-shadow: var(--shadow-card); cursor: pointer; }
.case-image { height: 280px; overflow: hidden; }
.case-image img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition-smooth); }
.case-card:hover .case-image img { transform: scale(1.1); }
.case-overlay { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(to top, rgba(26, 58, 92, 0.95), transparent); padding: 30px 20px 20px; opacity: 0; transition: var(--transition-smooth); }
.case-card:hover .case-overlay { opacity: 1; }
.case-overlay h3 { font-size: 18px; color: #fff; margin-bottom: 8px; }
.case-overlay p { font-size: 13px; color: rgba(255, 255, 255, 0.8); }
.news-section { padding: 100px 0; background: var(--color-cement-white); }
.news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 25px; }
.news-card { background: #fff; border-radius: 8px; overflow: hidden; box-shadow: var(--shadow-card); transition: var(--transition-smooth); }
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.news-image { height: 180px; overflow: hidden; }
.news-image img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition-smooth); }
.news-card:hover .news-image img { transform: scale(1.1); }
.news-content { padding: 20px; }
.news-content h3 { font-size: 16px; color: var(--color-deep-gray); margin-bottom: 10px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-content p { font-size: 13px; color: var(--color-text-light); line-height: 1.6; margin-bottom: 15px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: #999; }
.page-header { background: linear-gradient(135deg, var(--color-deep-gray) 0%, var(--color-navy-blue) 100%); padding: 150px 0 80px; text-align: center; position: relative; overflow: hidden; }
.page-header::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: url('../images/page-header-bg.jpg') center/cover no-repeat; opacity: 0.15; }
.page-header-content { position: relative; z-index: 2; }
.page-title { font-size: 48px; font-weight: 700; color: #fff; margin-bottom: 15px; }
.page-subtitle { font-size: 18px; color: rgba(255, 255, 255, 0.8); max-width: 600px; margin: 0 auto; }
.page-content { padding: 80px 0; }
.news-list-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.news-list-item { background: #fff; border-radius: 8px; overflow: hidden; box-shadow: var(--shadow-card); transition: var(--transition-smooth); }
.news-list-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.news-list-item .news-image { height: 200px; }
.news-list-item .news-content { padding: 25px; }
.news-list-item .news-content h3 { font-size: 18px; margin-bottom: 12px; }
.news-detail-container { max-width: 900px; margin: 0 auto; background: #fff; padding: 50px; border-radius: 8px; box-shadow: var(--shadow-card); }
.news-detail-header { border-bottom: 1px solid var(--color-border); padding-bottom: 30px; margin-bottom: 30px; }
.news-detail-title { font-size: 36px; color: var(--color-deep-gray); margin-bottom: 20px; line-height: 1.4; }
.news-detail-meta { display: flex; gap: 30px; color: var(--color-text-light); font-size: 14px; }
.news-detail-content { font-size: 16px; line-height: 2; color: var(--color-text-dark); }
.news-detail-content img { max-width: 100%; height: auto; margin: 30px 0; border-radius: 8px; }
.news-detail-content p { margin-bottom: 20px; }
.related-news { margin-top: 60px; padding-top: 40px; border-top: 1px solid var(--color-border); }
.related-news h3 { font-size: 24px; color: var(--color-deep-gray); margin-bottom: 30px; }
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; margin-bottom: 80px; }
.about-image { border-radius: 8px; overflow: hidden; box-shadow: var(--shadow-card); }
.about-image img { width: 100%; height: auto; }
.about-text h3 { font-size: 32px; color: var(--color-deep-gray); margin-bottom: 25px; }
.about-text p { font-size: 16px; color: var(--color-text-light); line-height: 2; margin-bottom: 20px; }
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.team-card { background: #fff; padding: 30px; border-radius: 8px; text-align: center; box-shadow: var(--shadow-card); transition: var(--transition-smooth); }
.team-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.team-avatar { width: 120px; height: 120px; margin: 0 auto 20px; border-radius: 50%; overflow: hidden; }
.team-avatar img { width: 100%; height: 100%; object-fit: cover; }
.team-card h4 { font-size: 18px; color: var(--color-deep-gray); margin-bottom: 8px; }
.team-card p { font-size: 14px; color: var(--color-text-light); }
.contact-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info { background: #fff; padding: 40px; border-radius: 8px; box-shadow: var(--shadow-card); }
.contact-info h3 { font-size: 28px; color: var(--color-deep-gray); margin-bottom: 30px; }
.contact-item { display: flex; align-items: flex-start; gap: 20px; margin-bottom: 25px; }
.contact-icon { width: 50px; height: 50px; background: var(--color-navy-blue); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-icon img { width: 24px; height: 24px; }
.contact-item h4 { font-size: 16px; color: var(--color-deep-gray); margin-bottom: 5px; }
.contact-item p { font-size: 14px; color: var(--color-text-light); }
.contact-form { background: #fff; padding: 40px; border-radius: 8px; box-shadow: var(--shadow-card); }
.contact-form h3 { font-size: 28px; color: var(--color-deep-gray); margin-bottom: 30px; }
.form-group { margin-bottom: 25px; }
.form-group label { display: block; font-size: 14px; color: var(--color-deep-gray); margin-bottom: 8px; font-weight: 500; }
.form-group input, .form-group textarea { width: 100%; padding: 14px 18px; border: 1px solid var(--color-border); border-radius: 4px; font-size: 15px; font-family: inherit; transition: var(--transition-smooth); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--color-navy-blue); box-shadow: 0 0 0 3px rgba(26, 58, 92, 0.1); }
.form-group textarea { resize: vertical; min-height: 150px; }
.submit-btn { width: 100%; padding: 16px; background: var(--color-navy-blue); color: #fff; border: none; border-radius: 4px; font-size: 16px; font-weight: 600; cursor: pointer; transition: var(--transition-smooth); }
.submit-btn:hover { background: var(--color-deep-gray); }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
@media (max-width: 1200px) { .advantages-grid, .cases-grid, .news-grid { grid-template-columns: repeat(2, 1fr); } .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 992px) { .nav-menu { position: fixed; top: 75px; left: 0; right: 0; background: var(--color-deep-gray); flex-direction: column; padding: 20px; gap: 5px; transform: translateY(-150%); opacity: 0; transition: var(--transition-smooth); } .nav-menu.active { transform: translateY(0); opacity: 1; } .hamburger { display: flex; } .hero-title { font-size: 42px; } .services-grid { grid-template-columns: repeat(2, 1fr); } .about-intro, .contact-wrapper { grid-template-columns: 1fr; } .team-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) { .hero-title { font-size: 32px; } .hero-subtitle { font-size: 18px; } .section-title { font-size: 32px; } .advantages-grid, .services-grid, .cases-grid, .news-grid, .news-list-grid { grid-template-columns: 1fr; } .footer-grid { grid-template-columns: 1fr; } .page-title { font-size: 36px; } .news-detail-container { padding: 30px 20px; } .news-detail-title { font-size: 28px; } }