/* ===== 云耕互享官网样式 ===== */

/* Reset & Base */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --primary: #2e7d32;
    --primary-light: #4caf50;
    --primary-dark: #1b5e20;
    --accent: #ffb300;
    --text: #333;
    --text-light: #666;
    --text-muted: #999;
    --bg: #fff;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a2e;
    --border: #e0e0e0;
    --radius: 8px;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    --max-width: 1200px;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    font-size: 16px;
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ===== 导航栏 ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    height: 64px;
}

.nav-content {
    display: flex; align-items: center; justify-content: space-between;
    height: 64px;
}

.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--primary); font-weight: 700; font-size: 20px; }
.logo-icon { font-size: 28px; }

.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { text-decoration: none; color: var(--text); font-size: 14px; transition: color 0.2s; }
.nav-links a:hover { color: var(--primary); }

.mobile-menu-btn {
    display: none;
    background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text);
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 10px 24px; border-radius: var(--radius);
    text-decoration: none; font-size: 14px; font-weight: 600;
    cursor: pointer; border: 2px solid transparent; transition: all 0.2s;
}
.btn-sm { padding: 6px 16px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-block { display: flex; width: 100%; }

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

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

/* ===== Hero ===== */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #e8f5e9 0%, #fff8e1 50%, #fff 100%);
}

.hero-content { max-width: 700px; }

.hero h1 {
    font-size: 48px; font-weight: 800; color: var(--primary-dark);
    line-height: 1.2; margin-bottom: 20px;
}

.hero-desc { font-size: 18px; color: var(--text-light); margin-bottom: 32px; line-height: 1.8; }

.hero-actions { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }

.hero-stats { display: flex; gap: 48px; }
.stat { display: flex; flex-direction: column; align-items: center; }
.stat-num { font-size: 28px; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 13px; color: var(--text-muted); }

/* ===== Section ===== */
.section { padding: 80px 0; }
.section:nth-child(even) { background: var(--bg-light); }

.section-title {
    text-align: center; font-size: 32px; font-weight: 800;
    color: var(--primary-dark); margin-bottom: 12px;
}

.section-subtitle {
    text-align: center; font-size: 16px; color: var(--text-light);
    margin-bottom: 48px;
}

/* ===== Cards ===== */
.card-grid { display: grid; gap: 24px; }
.card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
    background: #fff; border-radius: var(--radius); padding: 28px;
    box-shadow: var(--shadow); transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.card-icon { font-size: 36px; margin-bottom: 16px; }
.card h3 { font-size: 18px; margin-bottom: 8px; color: var(--primary-dark); }
.card p { font-size: 14px; color: var(--text-light); line-height: 1.6; }

/* ===== Features ===== */
.feature-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}

.feature-item {
    text-align: center; padding: 24px 16px;
    border-radius: var(--radius); background: #fff;
    border: 1px solid var(--border); transition: all 0.2s;
}
.feature-item:hover { border-color: var(--primary-light); box-shadow: var(--shadow); }

.feature-icon { font-size: 32px; display: block; margin-bottom: 12px; }
.feature-item h4 { font-size: 15px; margin-bottom: 6px; color: var(--text); }
.feature-item p { font-size: 13px; color: var(--text-muted); }

/* ===== Pricing ===== */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 48px; }

.pricing-card {
    background: #fff; border-radius: 12px; padding: 32px;
    border: 2px solid var(--border); position: relative;
    transition: all 0.2s;
}
.pricing-card:hover { box-shadow: var(--shadow-lg); }

.pricing-card.featured {
    border-color: var(--primary);
    transform: scale(1.04);
    box-shadow: var(--shadow-lg);
}

.pricing-recommend {
    position: absolute; top: -12px; right: 24px;
    background: var(--accent); color: #fff;
    padding: 4px 16px; border-radius: 20px;
    font-size: 12px; font-weight: 700;
}

.pricing-header { margin-bottom: 20px; }
.pricing-badge {
    display: inline-block; background: var(--primary-light);
    color: #fff; padding: 4px 12px; border-radius: 20px;
    font-size: 13px; font-weight: 600;
}
.pricing-label { display: block; margin-top: 8px; font-size: 13px; color: var(--text-muted); }

.pricing-price { margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.price-deploy { font-size: 36px; font-weight: 800; color: var(--primary-dark); }
.price-deploy span { font-size: 14px; font-weight: 400; color: var(--text-muted); }
.price-annual { font-size: 14px; color: var(--text-light); margin-top: 4px; }

.pricing-features { list-style: none; margin-bottom: 24px; }
.pricing-features li {
    padding: 6px 0; font-size: 14px; color: var(--text);
    border-bottom: 1px solid #f5f5f5;
}
.pricing-features li:last-child { border-bottom: none; }
.pricing-features li.dim { color: var(--text-muted); }
.pricing-features li.highlight { font-weight: 600; color: var(--primary-dark); }

/* ===== Addons ===== */
.addons-section {
    background: #fff; border-radius: 12px; padding: 32px;
    border: 1px solid var(--border);
}
.addons-section h3 { font-size: 18px; margin-bottom: 20px; color: var(--primary-dark); text-align: center; }
.addons-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }

.addon-item {
    display: flex; justify-content: space-between; align-items: center;
    padding: 12px 16px; border-radius: var(--radius);
    background: var(--bg-light); font-size: 14px;
}
.addon-name { color: var(--text); }
.addon-price { color: var(--primary); font-weight: 600; white-space: nowrap; }

/* ===== Demo ===== */
.demo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.demo-card {
    background: #fff; border-radius: 12px; padding: 32px;
    text-align: center; border: 1px solid var(--border);
}
.demo-icon { font-size: 48px; margin-bottom: 16px; }
.demo-card h3 { font-size: 18px; margin-bottom: 8px; }
.demo-card p { font-size: 14px; color: var(--text-light); margin-bottom: 20px; }
.demo-hint { font-size: 12px; color: var(--text-muted); margin-top: 12px; }

.demo-qr { margin: 16px 0; }
.qr-placeholder {
    width: 160px; height: 160px; margin: 0 auto;
    background: var(--bg-light); border: 2px dashed var(--border);
    border-radius: var(--radius); display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    font-size: 14px; color: var(--text-muted);
}
.qr-placeholder.sm { width: 120px; height: 120px; margin-top: 8px; }
.qr-hint { font-size: 12px; margin-top: 4px; }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }

.faq-item { border-bottom: 1px solid var(--border); }
.faq-q {
    padding: 20px 0; font-size: 16px; font-weight: 600;
    cursor: pointer; display: flex; justify-content: space-between;
    color: var(--text); transition: color 0.2s;
}
.faq-q::after { content: "+"; font-size: 20px; color: var(--text-muted); transition: transform 0.2s; }
.faq-q:hover { color: var(--primary); }

.faq-a {
    max-height: 0; overflow: hidden; transition: max-height 0.3s, padding 0.3s;
    font-size: 14px; color: var(--text-light); line-height: 1.8;
}
.faq-item.open .faq-a { max-height: 200px; padding-bottom: 20px; }
.faq-item.open .faq-q::after { content: "−"; }

/* ===== Contact ===== */
.contact-content { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 48px; }

.contact-form { display: flex; flex-direction: column; gap: 16px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; }
.form-group label { font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--text); }

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius);
    font-size: 14px; font-family: var(--font); transition: border-color 0.2s;
    background: #fff;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(46,125,50,0.1);
}

.contact-info { display: flex; flex-direction: column; gap: 24px; }

.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-icon { font-size: 28px; flex-shrink: 0; }
.contact-item h4 { font-size: 15px; margin-bottom: 4px; }
.contact-item p { font-size: 14px; color: var(--text-light); }

/* ===== Footer ===== */
.footer { background: var(--bg-dark); color: #ccc; padding: 48px 0 24px; }
.footer-content { display: flex; justify-content: space-between; margin-bottom: 32px; }

.footer-brand { display: flex; flex-direction: column; gap: 8px; }
.footer-brand span { color: #fff; font-size: 18px; font-weight: 700; }
.footer-brand p { font-size: 13px; color: #888; }

.footer-links { display: flex; gap: 48px; }
.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col h4 { color: #fff; font-size: 14px; margin-bottom: 4px; }
.footer-col a { color: #888; text-decoration: none; font-size: 13px; transition: color 0.2s; }
.footer-col a:hover { color: #fff; }

.footer-bottom { border-top: 1px solid #333; padding-top: 20px; text-align: center; font-size: 13px; color: #666; }
.footer-bottom a { color: #888; text-decoration: none; }

/* ===== 响应式 ===== */
@media (max-width: 968px) {
    .card-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
    .feature-grid { grid-template-columns: repeat(3, 1fr); }
    .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto 48px; }
    .pricing-card.featured { transform: none; }
    .demo-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
    .addons-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-content { grid-template-columns: 1fr; }
    .footer-content { flex-direction: column; gap: 24px; }
}

@media (max-width: 640px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }
    .hero h1 { font-size: 32px; }
    .hero-desc { font-size: 15px; }
    .hero-actions { flex-direction: column; }
    .hero-stats { gap: 24px; }
    .card-grid.cols-4 { grid-template-columns: 1fr; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .addons-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .section { padding: 48px 0; }
    .section-title { font-size: 24px; }
}

/* === 订单弹窗 === */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-content {
    background: #fff;
    border-radius: 12px;
    padding: 32px;
    max-width: 480px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}
.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #999;
    padding: 4px 8px;
}
.modal-close:hover { color: #333; }
.modal-content h3 {
    margin-bottom: 24px;
    color: #1a5e1f;
}
.modal-content .form-group {
    margin-bottom: 16px;
}
.modal-content label {
    display: block;
    font-size: 14px;
    color: #555;
    margin-bottom: 6px;
}
.modal-content input,
.modal-content textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    box-sizing: border-box;
}
.modal-content input:focus,
.modal-content textarea:focus {
    border-color: #1a5e1f;
    outline: none;
}
.order-summary {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 20px;
}
.order-summary-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 15px;
}
.payment-info {
    text-align: center;
    padding: 20px 0;
}
.payment-status {
    font-size: 18px;
    color: #2e7d32;
    margin-bottom: 12px;
}
.payment-hint {
    text-align: center;
    font-size: 13px;
    color: #999;
    margin-top: 12px;
}