/* ==========================================================================
   乌龟加速 (Turtle Speed) - 原生极速样式表
   零重型框架依赖 / 纯原生现代 CSS / 秒开体验 / 深度暗色高级科技风
   ========================================================================== */

:root {
  --bg-primary: #07090e;
  --bg-secondary: #0d121d;
  --bg-card: rgba(18, 24, 38, 0.7);
  --bg-card-hover: rgba(26, 35, 55, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(34, 197, 94, 0.35);
  
  --accent-green: #22c55e;
  --accent-green-hover: #16a34a;
  --accent-cyan: #06b6d4;
  --accent-blue: #3b82f6;
  --accent-gold: #f59e0b;
  --accent-purple: #8b5cf6;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "Fira Code", Consolas, Monaco, "Courier New", Courier, monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 35px rgba(34, 197, 94, 0.25);

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* 背景科技星芒与径向渐变 */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: 
    radial-gradient(circle at 15% 20%, rgba(34, 197, 94, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 60%, rgba(6, 182, 212, 0.07) 0%, transparent 50%),
    radial-gradient(circle at 50% 90%, rgba(59, 130, 246, 0.06) 0%, transparent 40%);
  pointer-events: none;
  z-index: -1;
}

/* 页面通用容器 */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 排版与公用样式 */
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img, svg {
  display: block;
  max-width: 100%;
}

.text-gradient {
  background: linear-gradient(135deg, #4ade80 0%, #22c55e 50%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: var(--radius-full);
  color: var(--accent-green);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-title {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* 按钮通用组件 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  font-size: 0.98rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  color: #ffffff;
  box-shadow: 0 4px 18px rgba(34, 197, 94, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
  box-shadow: 0 6px 24px rgba(34, 197, 94, 0.5);
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  border-color: var(--border-color);
  backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.12rem;
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
}

/* ==========================================================================
   1. 导航栏 (Navbar)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(7, 9, 14, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(7, 9, 14, 0.95);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  border-bottom: 1px solid var(--border-color);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-main);
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.2), rgba(6, 182, 212, 0.2));
  border: 1px solid rgba(34, 197, 94, 0.4);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-green);
  box-shadow: 0 0 15px rgba(34, 197, 94, 0.2);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover {
  color: #ffffff;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent-green);
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.hamburger-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-main);
}

/* ==========================================================================
   2. 首屏横幅区 (Hero Section)
   ========================================================================== */
.hero-section {
  padding: 160px 0 100px;
  min-height: 90vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.promo-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, rgba(34, 197, 94, 0.15) 0%, rgba(6, 182, 212, 0.15) 100%);
  border: 1px solid rgba(34, 197, 94, 0.4);
  color: #ffffff;
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 28px;
  animation: pulse 2.5s infinite;
}

.promo-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-green);
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 15px rgba(34, 197, 94, 0.15); }
  50% { box-shadow: 0 0 25px rgba(34, 197, 94, 0.4); }
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 850;
  line-height: 1.15;
  letter-spacing: -1.2px;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 1.22rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 740px;
  margin: 0 auto 38px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 48px;
}

.hero-trust-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.trust-item svg {
  color: var(--accent-green);
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   3. 核心优势图卡区 (Dynamic Cards Section)
   ========================================================================== */
.features-section {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 40px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  transform: translateY(-6px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.feature-icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-green);
  margin-bottom: 22px;
}

.feature-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.65;
}

/* 流媒体与 AI 支持图卡 */
.support-matrix-card {
  background: linear-gradient(135deg, rgba(18, 24, 38, 0.9) 0%, rgba(13, 18, 29, 0.95) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  margin-top: 30px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.support-info h3 {
  font-size: 1.7rem;
  margin-bottom: 14px;
}

.support-info p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 24px;
}

.service-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.service-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.service-tag:hover {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.35);
  color: #ffffff;
}

.service-tag svg {
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   4. 定价卡片区 (Pricing Section)
   ========================================================================== */
.pricing-section {
  padding: 100px 0;
  position: relative;
}

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

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
}

.pricing-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-8px);
}

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(23, 33, 53, 0.95) 0%, rgba(15, 22, 36, 0.95) 100%);
  border: 2px solid var(--accent-green);
  box-shadow: 0 10px 40px -10px rgba(34, 197, 94, 0.3);
  transform: scale(1.03);
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-8px);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #22c55e, #10b981);
  color: #000000;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.4);
}

.pricing-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 24px;
}

.pricing-tier {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.pricing-price {
  margin: 20px 0 8px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
}

.price-val {
  font-size: 3.2rem;
  font-weight: 850;
  line-height: 1;
}

.price-period {
  color: var(--text-dim);
  font-size: 0.95rem;
}

.pricing-traffic {
  display: inline-block;
  background: rgba(34, 197, 94, 0.1);
  color: var(--accent-green);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.94rem;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.pricing-features li svg {
  color: var(--accent-green);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.pricing-card .btn {
  width: 100%;
}

/* ==========================================================================
   5. 深度特性解析区 (Why Choose Section)
   ========================================================================== */
.why-section {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.deep-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  margin-bottom: 80px;
}

.deep-row:last-child {
  margin-bottom: 0;
}

.deep-text h3 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 18px;
  line-height: 1.3;
}

.deep-text p {
  color: var(--text-muted);
  font-size: 1.02rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

.deep-highlights {
  list-style: none;
}

.deep-highlights li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  margin-bottom: 12px;
  color: var(--text-main);
}

.deep-highlights li svg {
  color: var(--accent-cyan);
  width: 18px;
  height: 18px;
}

/* 数据看板组件 */
.metrics-dashboard {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-card);
}

.metrics-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.metrics-title {
  font-size: 0.95rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 10px;
  height: 10px;
  background: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-green);
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.metric-item {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 16px;
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.metric-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-green);
  font-family: var(--font-mono);
}

/* 终端代码块组件 */
.terminal-window {
  background: #0b0f17;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
  overflow: hidden;
  font-family: var(--font-mono);
}

.terminal-header {
  background: #151b26;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-dots {
  display: flex;
  gap: 7px;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #eab308; }
.dot-green { background: #22c55e; }

.terminal-file {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 22px;
  font-size: 0.88rem;
  line-height: 1.7;
  color: #e2e8f0;
}

.term-cmd { color: #38bdf8; }
.term-comment { color: #64748b; }
.term-success { color: #4ade80; font-weight: 700; }
.term-warn { color: #fbbf24; }
.term-val { color: #f472b6; }

/* ==========================================================================
   6. 用户评价跑马灯区 (Testimonials Marquee Section)
   ========================================================================== */
.testimonials-section {
  padding: 100px 0;
  overflow: hidden;
  position: relative;
}

.marquee-container {
  display: flex;
  overflow: hidden;
  user-select: none;
  gap: 24px;
  position: relative;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  padding: 20px 0;
}

.marquee-track {
  display: flex;
  gap: 24px;
  flex-shrink: 0;
  animation: marquee-scroll 38s linear infinite;
}

.marquee-track:hover {
  animation-play-state: paused;
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(calc(-100% - 24px)); }
}

.testimonial-card {
  width: 360px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex-shrink: 0;
}

.testimonial-stars {
  color: var(--accent-gold);
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.testimonial-content {
  color: var(--text-main);
  font-size: 0.94rem;
  line-height: 1.6;
  margin-bottom: 18px;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.3), rgba(6, 182, 212, 0.3));
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #ffffff;
  font-size: 0.95rem;
}

.user-info h4 {
  font-size: 0.92rem;
  margin-bottom: 2px;
}

.user-info p {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ==========================================================================
   7. 常见问题解答区 (FAQ Section)
   ========================================================================== */
.faq-section {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  overflow: hidden;
}

.faq-item[open] {
  border-color: rgba(34, 197, 94, 0.3);
  background: rgba(22, 31, 50, 0.7);
}

.faq-item summary {
  padding: 22px 26px;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-main);
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--accent-green);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 26px 24px;
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.7;
}

/* ==========================================================================
   8. 底部转化区 (Bottom CTA Section)
   ========================================================================== */
.bottom-cta-section {
  padding: 100px 0;
  position: relative;
}

.cta-banner {
  background: radial-gradient(circle at 50% 50%, rgba(34, 197, 94, 0.2) 0%, rgba(13, 18, 29, 0.95) 100%);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: var(--radius-lg);
  padding: 70px 40px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), var(--shadow-glow);
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  font-size: 2.5rem;
  font-weight: 850;
  margin-bottom: 16px;
}

.cta-banner p {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 34px;
}

/* ==========================================================================
   9. 页脚 (Footer)
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  background: var(--bg-primary);
  text-align: center;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  list-style: none;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

.footer-copy {
  color: var(--text-dim);
  font-size: 0.86rem;
}

/* ==========================================================================
   10. 响应式移动端适配 (@media)
   ========================================================================== */
@media (max-width: 992px) {
  .hero-title {
    font-size: 2.8rem;
  }
  .feature-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin: 0 auto 40px;
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-8px);
  }
  .support-matrix-card {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .deep-row {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .site-header {
    background: rgba(7, 9, 14, 0.95);
  }
  .hamburger-btn {
    display: block;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 74px;
    left: 0;
    width: 100%;
    background: #0d121d;
    flex-direction: column;
    padding: 24px 0;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.7);
  }
  .nav-links.active {
    display: flex;
  }
  .nav-actions {
    display: none;
  }
  .hero-section {
    padding: 130px 0 70px;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-subtitle {
    font-size: 1.05rem;
  }
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }
  .hero-cta-group .btn {
    width: 100%;
  }
  .section-title {
    font-size: 1.85rem;
  }
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  .cta-banner {
    padding: 48px 20px;
  }
  .cta-banner h2 {
    font-size: 1.9rem;
  }
  .footer-nav {
    gap: 20px;
  }
}