:root {
  --host-blue: #0056b3; --host-dark: #002a4d; --host-light: #eef6ff;
  --accent: #ff9800; --success: #28a745; --text-main: #333;
  --text-muted: #666; --bg: #f8f9fa; --white: #fff; --radius: 4px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', Tahoma, sans-serif; background-color: var(--bg); color: var(--text-main); font-size: 15px; line-height: 1.5; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
.top-bar { background: var(--host-dark); color: #ccc; font-size: 0.8rem; padding: 5px 0; }
.top-flex { display: flex; justify-content: space-between; }
.support-link { color: #fff; text-decoration: none; }
.header { background: var(--white); border-bottom: 1px solid #ddd; padding: 15px 0; position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--host-blue); text-decoration: none; }
.logo span { color: var(--text-main); }
.main-menu { display: flex; gap: 25px; list-style: none; }
.main-menu a { text-decoration: none; color: var(--text-main); font-weight: 600; font-size: 0.95rem; border-bottom: 2px solid transparent; padding-bottom: 2px; }
.main-menu a:hover, .main-menu a.active { color: var(--host-blue); border-bottom-color: var(--host-blue); }
.btn-login { background: var(--host-blue); color: white; padding: 8px 20px; border-radius: var(--radius); text-decoration: none; font-weight: 600; }
.hero-hosting { background: linear-gradient(135deg, var(--host-blue) 0%, var(--host-dark) 100%); color: white; padding: 60px 0; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.hero-title { font-size: 2.8rem; font-weight: 800; margin-bottom: 15px; line-height: 1.2; }
.hero-subtitle { font-size: 1.1rem; opacity: 0.9; margin-bottom: 25px; }
.btn-order { display: inline-block; background: var(--accent); color: var(--host-dark); padding: 14px 30px; border-radius: var(--radius); font-weight: 800; text-decoration: none; font-size: 1rem; box-shadow: 0 4px 10px rgba(0,0,0,0.2); }
.promo-badge { display: inline-block; background: rgba(255,255,255,0.2); padding: 5px 10px; border-radius: 3px; font-size: 0.8rem; margin-bottom: 15px; font-weight: 600; }
.hero-features { background: rgba(255,255,255,0.1); padding: 20px; border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.2); }
.feature-line { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; font-size: 0.9rem; }
.feature-line:last-child { margin-bottom: 0; }
.check { color: var(--success); font-weight: bold; }
.section-box { padding: 60px 0; }
.section-title { text-align: center; font-size: 1.8rem; font-weight: 700; margin-bottom: 10px; color: var(--host-dark); }
.section-desc { text-align: center; color: var(--text-muted); margin-bottom: 40px; }
.tariff-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; align-items: stretch; }
.tariff-card { background: white; border: 1px solid #ddd; border-radius: var(--radius); transition: 0.3s; position: relative; display: flex; flex-direction: column; }
.tariff-card:hover { box-shadow: 0 10px 20px rgba(0,0,0,0.1); transform: translateY(-5px); border-color: var(--host-blue); }
.tariff-header { background: #f5f5f5; padding: 15px 20px; border-bottom: 1px solid #eee; }
.tariff-header h3 { font-size: 1.2rem; color: var(--host-dark); }
.tariff-header .position { font-size: 0.85rem; color: var(--host-blue); font-weight: 600; }
.tariff-price { padding: 20px; border-bottom: 1px solid #eee; background: #fafafa; }
.price-value { font-size: 1.4rem; font-weight: 800; color: var(--text-main); display: block; margin-bottom: 5px; }
.price-label { font-size: 0.8rem; color: var(--text-muted); }
.tariff-body { padding: 20px; flex-grow: 1; }
.spec-list { list-style: none; }
.spec-list li { font-size: 0.9rem; color: #555; margin-bottom: 8px; display: flex; align-items: start; gap: 8px; }
.spec-list li::before { content: '✔'; color: var(--success); font-size: 0.8rem; font-weight: bold; margin-top: 2px; }
.tariff-footer { padding: 0 20px 20px; margin-top: auto; }
.btn-tariff { display: block; width: 100%; background: #f0f0f0; color: var(--text-main); text-align: center; padding: 10px; text-decoration: none; border-radius: var(--radius); font-weight: 600; font-size: 0.9rem; }
.tariff-card.popular { border: 2px solid var(--host-blue); z-index: 2; }
.tariff-card.popular .tariff-header { background: var(--host-blue); color: white; }
.tariff-card.popular .tariff-header h3 { color: white; }
.tariff-card.popular .tariff-header .position { color: #aed3ff; }
.tariff-card.popular .btn-tariff { background: var(--accent); color: var(--host-dark); }
.hit-badge { position: absolute; top: -12px; right: 10px; background: var(--accent); color: white; font-size: 0.7rem; font-weight: 800; padding: 4px 10px; border-radius: 3px; text-transform: uppercase; }
.section-title + .section-desc { margin-top: 0; }
.footer-host { background: var(--host-dark); color: #aaa; padding: 20px 0; margin-top: 50px; text-align: center; font-size: 0.8rem; }

@media (max-width: 900px) {
  .tariff-grid { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .main-menu { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
}

.content-grid { display: grid; grid-template-columns: 250px 1fr; gap: 30px; padding-bottom: 50px; }
.sidebar-nav { background: white; padding: 20px; border-radius: var(--radius); border: 1px solid #eee; height: fit-content; position: sticky; top: 80px; }
.sidebar-title { font-weight: 700; margin-bottom: 15px; font-size: 0.9rem; text-transform: uppercase; color: #999; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 12px 15px; margin-bottom: 5px; color: var(--text-main); text-decoration: none; font-weight: 600; border-radius: var(--radius); transition: all 0.2s; border: 1px solid transparent; }
.nav-item:hover { background: #f5f8fc; color: var(--host-blue); }
.nav-item.active { background: var(--host-blue); color: white; box-shadow: 0 4px 10px rgba(0, 86, 179, 0.2); }
.nav-icon { font-size: 1.1rem; width: 20px; text-align: center; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: white; border: 1px solid #eee; border-radius: var(--radius); overflow: hidden; padding: 0 0; }
.faq-q { padding: 15px 20px; font-weight: 700; cursor: default; color: var(--host-dark); }
.faq-a { padding: 0 20px 20px; color: var(--text-muted); }
.content-section-title { font-size: 1.4rem; color: var(--host-dark); margin: 20px 0; padding-bottom: 10px; border-bottom: 2px solid var(--host-blue); display: flex; align-items: center; gap: 10px; }
.code-tag { background: #eef2f7; padding: 2px 6px; border-radius: 3px; font-family: monospace; }
.code-block { background: #282c34; color: #abb2bf; padding: 10px; border-radius: 4px; font-family: monospace; }
.ai-notice { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.1); padding: 6px 12px; border-radius: 4px; font-size: 0.8rem; }
.ai-dot { width: 8px; height: 8px; background: #00ff00; border-radius: 50%; display: inline-block; }