/* 极橙信息科技 - 主样式 */
:root {
    --primary: #e65100;
    --primary-dark: #bf360c;
    --primary-light: #f57c00;
    --accent: #ffc107;
    --bg: #fafafa;
    --bg-dark: #263238;
    --text: #212121;
    --text-light: #757575;
    --white: #ffffff;
    --border: #e0e0e0;
    --success: #2e7d32;
    --danger: #c62828;
}

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

body {
    font-family: -apple-system, "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--white);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span { color: var(--accent); }

.nav { display: flex; gap: 0.25rem; }
.nav a {
    color: var(--white);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: background 0.2s;
}
.nav a:hover { background: rgba(255,255,255,0.15); }

.mobile-toggle { display: none; background: none; border: none; color: var(--white); font-size: 1.5rem; cursor: pointer; }

/* Hero */
.hero {
    background: linear-gradient(135deg, var(--bg-dark) 0%, #37474f 100%);
    color: var(--white);
    padding: 8rem 1rem 4rem;
    text-align: center;
}
.hero h1 { font-size: 2.5rem; margin-bottom: 1rem; }
.hero p { font-size: 1.1rem; opacity: 0.9; max-width: 700px; margin: 0 auto 2rem; }
.hero-btn {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 0.8rem 2rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s;
}
.hero-btn:hover { background: var(--primary-dark); }

/* Pain Point Section */
.pain-points {
    background: var(--white);
    padding: 3rem 0;
}
.pain-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}
.pain-card {
    padding: 1.5rem;
    border-radius: 8px;
    background: #fff8e1;
    border-left: 4px solid var(--accent);
}
.pain-card h4 { color: var(--primary-dark); margin-bottom: 0.5rem; }
.pain-card p { font-size: 0.9rem; color: var(--text-light); }

/* Cost Comparison */
.compare-section {
    background: #e8f5e9;
    padding: 4rem 0;
}
.compare-wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}
.compare-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
.compare-table th, .compare-table td {
    padding: 1rem;
    text-align: center;
    border-bottom: 1px solid var(--border);
}
.compare-table th {
    background: var(--primary);
    color: var(--white);
    font-size: 1rem;
}
.compare-table td:first-child { text-align: left; font-weight: 500; }
.compare-table .win { color: var(--success); font-weight: 600; }
.compare-table .lose { color: var(--danger); }
.highlight-row { background: #fff3e0; font-weight: 600; }
.highlight-row td { color: var(--primary-dark); font-size: 1.1rem; }

/* Solution Section */
.solution-promo {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 1rem;
}
.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}
.solution-promo-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: transform 0.2s;
}
.solution-promo-card:hover { transform: translateY(-3px); }
.solution-promo-card h3 { color: var(--primary-dark); margin-bottom: 0.5rem; }
.solution-promo-card p { color: var(--text-light); font-size: 0.9rem; }
.solution-promo-card .tag {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    margin-top: 0.8rem;
    font-weight: 600;
}
.tag-new { background: #e8f5e9; color: var(--success); }
.tag-hot { background: #fff3e0; color: var(--primary-dark); }
.tag-popular { background: #e3f2fd; color: #1565c0; }

/* Sections */
.section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 1rem;
}
.section-title {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
}
.section-desc {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
}

/* Features */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 4px 20px rgba(0,0,0,0.12); }
.feature-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.feature-card h3 { margin-bottom: 0.5rem; }
.feature-card p { color: var(--text-light); font-size: 0.9rem; }

/* CTA Banner */
.cta-banner {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    text-align: center;
    padding: 3rem 1rem;
}
.cta-banner h2 { font-size: 1.8rem; margin-bottom: 0.5rem; }
.cta-banner p { opacity: 0.9; margin-bottom: 1.5rem; }
.cta-banner .hero-btn { background: var(--white); color: var(--primary); }
.cta-banner .hero-btn:hover { background: var(--accent); color: var(--text); }

/* Services */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; }
.service-item {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.service-item h4 { margin-bottom: 0.5rem; color: var(--primary-dark); }
.service-item p { font-size: 0.9rem; color: var(--text-light); }

/* Contact */
.contact-info { max-width: 600px; margin: 0 auto; }
.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--white);
    border-radius: 8px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.contact-icon { font-size: 1.5rem; width: 2rem; text-align: center; }
.contact-label { color: var(--text-light); font-size: 0.85rem; }
.contact-value { font-weight: 500; }

/* News */
.news-list { max-width: 800px; margin: 0 auto; }
.news-item {
    padding: 1.2rem 0;
    border-bottom: 1px solid var(--border);
}
.news-date { color: var(--text-light); font-size: 0.85rem; }
.news-title { font-weight: 500; margin: 0.3rem 0; }
.news-title a { color: var(--text); text-decoration: none; }
.news-title a:hover { color: var(--primary); }

/* Footer */
.footer {
    background: var(--bg-dark);
    color: var(--white);
    text-align: center;
    padding: 2rem 1rem;
    font-size: 0.85rem;
    opacity: 0.8;
}

/* About page */
.about-content { max-width: 800px; margin: 0 auto; }
.about-content p { margin-bottom: 1rem; }
.info-table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
.info-table th, .info-table td {
    padding: 0.8rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.info-table th { width: 140px; color: var(--text-light); font-weight: 400; }

/* Page header */
.page-header {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--white);
    padding: 6rem 1rem 3rem;
    text-align: center;
}
.page-header h1 { font-size: 2rem; }
.page-header p { opacity: 0.9; margin-top: 0.5rem; }

/* Tech page */
.tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.tech-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.tech-card h3 { margin-bottom: 0.5rem; color: var(--primary-dark); }
.tech-card p { font-size: 0.9rem; color: var(--text-light); }

/* Stats bar */
.stats-bar {
    background: var(--bg-dark);
    padding: 2rem 0;
    color: var(--white);
}
.stats-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    text-align: center;
}
.stat-number { font-size: 2rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 0.85rem; opacity: 0.8; margin-top: 0.3rem; }

/* Responsive */
@media (max-width: 768px) {
    .nav { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--primary-dark); padding: 1rem; }
    .nav.active { display: flex; }
    .mobile-toggle { display: block; }
    .hero h1 { font-size: 1.8rem; }
    .hero { padding: 6rem 1rem 3rem; }
    .section { padding: 3rem 1rem; }
    .compare-table { font-size: 0.85rem; }
    .compare-table th, .compare-table td { padding: 0.6rem; }
    .solution-grid { grid-template-columns: 1fr; }
}