@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Sora:wght@600;700;800&display=swap');

:root {
  --bg-deep-blue: #0a1a3a;
  --aurora-teal: #14b8a6;
  --aurora-violet: #8b5cf6;
  --aurora-magenta: #ec4899;
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-bg-hover: rgba(255, 255, 255, 0.13);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-border-focus: rgba(20, 184, 166, 0.5);
  --text-main: #f8fafc;
  --text-muted: #cbd5e1;
  --text-dim: #94a3b8;
  --accent-cyan: #38bdf8;
  --accent-teal: #14b8a6;
  --accent-violet: #8b5cf6;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --radius-full: 9999px;
  --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --shadow-glow: 0 0 25px rgba(20, 184, 166, 0.35);
  --font-heading: 'Sora', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

/* 极光背景动画流动效果 (15s 循环移动) */
.aurora-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  background: linear-gradient(
    135deg,
    #0a1a3a 0%,
    #0f2854 20%,
    #14b8a6 45%,
    #8b5cf6 70%,
    #ec4899 90%,
    #0a1a3a 100%
  );
  background-size: 300% 300%;
  animation: auroraFlow 15s ease-in-out infinite alternate;
  filter: blur(60px);
  opacity: 0.85;
  pointer-events: none;
}

@keyframes auroraFlow {
  0% {
    background-position: 0% 20%;
  }
  50% {
    background-position: 100% 80%;
  }
  100% {
    background-position: 20% 100%;
  }
}

/* 噪点与光晕网格质感层 */
.noise-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

/* 标题字体 */
h1, h2, h3, h4, .brand-text {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
  text-decoration: none;
}

/* 玻璃质感基础类 */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-glass);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), 
              border-color 0.3s ease, 
              background 0.3s ease, 
              box-shadow 0.3s ease;
}

.glass-panel:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(255, 255, 255, 0.28);
}

/* 容器规范 */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 顶部悬浮玻璃导航 */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  padding: 0 24px;
}

.nav-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: rgba(10, 26, 58, 0.65);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--aurora-teal), var(--aurora-violet));
  border-radius: 10px;
  color: #fff;
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(20, 184, 166, 0.4);
}

.brand-gradient {
  background: linear-gradient(135deg, #ffffff 40%, var(--aurora-teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s ease;
  position: relative;
  padding: 6px 0;
}

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

.nav-link.highlight {
  color: #38bdf8;
  font-weight: 600;
}

.nav-link.highlight::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--aurora-teal), var(--aurora-violet));
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 按钮通用规范与磁性效果 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--aurora-teal) 0%, var(--aurora-violet) 100%);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 20px rgba(20, 184, 166, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px rgba(20, 184, 166, 0.6);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
}

.btn-special {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.25), rgba(236, 72, 153, 0.25));
  border: 1px solid rgba(236, 72, 153, 0.4);
  color: #fdf2f8;
}

.btn-special:hover {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.4), rgba(236, 72, 153, 0.4));
  border-color: rgba(236, 72, 153, 0.7);
  box-shadow: 0 6px 24px rgba(236, 72, 153, 0.35);
  transform: translateY(-2px) scale(1.02);
}

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

/* 主视觉区 Hero */
.hero-section {
  padding: 80px 0 60px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: center;
}

.hero-text-card {
  padding: 48px;
  position: relative;
  z-index: 2;
}

.hero-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: rgba(20, 184, 166, 0.15);
  border: 1px solid rgba(20, 184, 166, 0.4);
  color: #5eead4;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #14b8a6;
  box-shadow: 0 0 10px #14b8a6;
  animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-title {
  font-size: 3.2rem;
  line-height: 1.15;
  margin-bottom: 20px;
  color: #ffffff;
}

.hero-title-highlight {
  background: linear-gradient(135deg, #38bdf8 0%, #a78bfa 50%, #f472b6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
  margin-top: 6px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #e2e8f0;
  font-weight: 500;
  margin-bottom: 16px;
}

.hero-description {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-num {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: #38bdf8;
}

.metric-label {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: 4px;
}

/* Hero 右侧视觉卡片 (双层堆叠+视角视差) */
.hero-visual-container {
  position: relative;
  perspective: 1000px;
}

.hero-visual-card {
  padding: 36px;
  position: relative;
  z-index: 2;
  transform-style: preserve-3d;
  transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.visual-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.4);
  border-radius: var(--radius-full);
  color: #4ade80;
  font-size: 0.8rem;
  font-weight: 600;
}

.status-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
}

.node-speed-box {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.speed-bar-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.speed-bar-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.speed-bar-track {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.speed-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--aurora-teal), #38bdf8);
}

.speed-bar-fill.purple {
  background: linear-gradient(90deg, #8b5cf6, #ec4899);
}

.speed-bar-fill.cyan {
  background: linear-gradient(90deg, #06b6d4, #3b82f6);
}

.feature-pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.feature-pill {
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: #e2e8f0;
}

/* 视觉重叠底层背板 */
.hero-visual-card-backdrop {
  position: absolute;
  top: 24px;
  left: 24px;
  right: -16px;
  bottom: -20px;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.25);
  border-radius: var(--radius-md);
  z-index: 1;
  transform: rotate(3deg);
  pointer-events: none;
}

/* 通用区块排版 */
.section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 54px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: var(--radius-full);
  color: #38bdf8;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 14px;
}

.section-title {
  font-size: 2.3rem;
  color: #ffffff;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* 核心优势卡片（3个图文卡片） */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--aurora-teal), var(--aurora-violet));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon-wrapper {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  font-size: 1.6rem;
  background: rgba(20, 184, 166, 0.12);
  border: 1px solid rgba(20, 184, 166, 0.3);
  color: #2dd4bf;
}

.feature-icon-wrapper.purple {
  background: rgba(139, 92, 246, 0.12);
  border-color: rgba(139, 92, 246, 0.3);
  color: #a78bfa;
}

.feature-icon-wrapper.magenta {
  background: rgba(236, 72, 153, 0.12);
  border-color: rgba(236, 72, 153, 0.3);
  color: #f472b6;
}

.feature-title {
  font-size: 1.3rem;
  color: #ffffff;
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.feature-list {
  list-style: none;
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: #e2e8f0;
}

.check-icon {
  color: #14b8a6;
  font-weight: bold;
}

/* 流媒体与 AI 支持图卡 */
.support-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.support-card {
  padding: 36px;
  position: relative;
}

.support-title-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.support-badge-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.support-title {
  font-size: 1.35rem;
  color: #ffffff;
}

.support-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

.support-tags-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.support-tag-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  text-align: center;
  transition: all 0.2s ease;
}

.support-tag-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(20, 184, 166, 0.4);
  transform: translateY(-2px);
}

.tag-name {
  font-weight: 700;
  font-size: 0.92rem;
  color: #ffffff;
  margin-bottom: 4px;
}

.tag-status {
  font-size: 0.75rem;
  color: #38bdf8;
}

/* 价格对比表 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card.featured {
  background: rgba(255, 255, 255, 0.12);
  border: 1.5px solid rgba(20, 184, 166, 0.5);
  box-shadow: 0 16px 40px rgba(20, 184, 166, 0.2);
  transform: scale(1.03);
}

.featured-ribbon {
  position: absolute;
  top: 16px;
  right: 20px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--aurora-teal), var(--aurora-violet));
  font-size: 0.78rem;
  font-weight: 700;
  color: #ffffff;
  box-shadow: 0 2px 10px rgba(20, 184, 166, 0.4);
}

.plan-name {
  font-size: 1.4rem;
  color: #ffffff;
  margin-bottom: 6px;
}

.plan-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.plan-price-box {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.price-currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffffff;
}

.price-amount {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1;
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: #e2e8f0;
}

.plan-features li.disabled {
  color: var(--text-dim);
  text-decoration: line-through;
  opacity: 0.6;
}

.pricing-btn {
  width: 100%;
}

/* 用户评价 */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
}

.review-stars {
  color: #fbbf24;
  font-size: 1rem;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.95rem;
  color: #e2e8f0;
  line-height: 1.7;
  margin-bottom: 20px;
  flex-grow: 1;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.4), rgba(139, 92, 246, 0.4));
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #ffffff;
}

.author-info h4 {
  font-size: 0.95rem;
  color: #ffffff;
  margin-bottom: 2px;
}

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

/* 常见问题解答 (FAQ) */
.faq-container {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 22px 26px;
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-icon {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  color: #38bdf8;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0 26px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 24px;
}

/* 底部 CTA 区域 */
.bottom-cta {
  padding: 60px 0 100px;
}

.bottom-cta-box {
  padding: 56px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.bottom-cta-title {
  font-size: 2.4rem;
  color: #ffffff;
  margin-bottom: 16px;
}

.bottom-cta-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 32px;
}

/* 极简页脚：只保留四个标题并打开新页面展示 */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(10, 26, 58, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 40px 0 30px;
}

.footer-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.footer-link {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: color 0.2s ease, transform 0.2s ease;
  padding: 6px 12px;
  border-radius: 8px;
}

.footer-link:hover {
  color: #38bdf8;
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-2px);
}

.footer-copyright {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* 滚动揭示动画 (IntersectionObserver) */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-scroll.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* 响应式媒体查询适配 (@media) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .features-grid,
  .pricing-grid,
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured {
    transform: none;
  }
}

@media (max-width: 768px) {
  .site-header {
    top: 10px;
    padding: 0 12px;
  }
  .nav-wrapper {
    padding: 10px 16px;
  }
  .nav-menu {
    gap: 14px;
  }
  .nav-link {
    font-size: 0.85rem;
  }
  .hero-section {
    padding: 40px 0 30px;
  }
  .hero-text-card {
    padding: 28px 20px;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-subtitle {
    font-size: 1.05rem;
  }
  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    width: 100%;
    padding: 14px 20px;
  }
  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .features-grid,
  .support-grid,
  .pricing-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .support-tags-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-nav {
    flex-direction: column;
    gap: 16px;
  }
  .section-title {
    font-size: 1.8rem;
  }
}