/* ==========================================================================
   IPLCSub (iplcsub.sbs) - 纯原生 CSS 极速样式表
   0 外部依赖 · 秒开加载 · 现代暗黑专线科技质感
   ========================================================================== */

:root {
  --bg-primary: #070a13;
  --bg-secondary: #0d1222;
  --bg-tertiary: #131b32;
  --bg-card: rgba(16, 23, 44, 0.75);
  --bg-card-hover: rgba(22, 33, 62, 0.9);
  --border-color: rgba(56, 189, 248, 0.16);
  --border-color-glow: rgba(56, 189, 248, 0.45);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --primary: #00f2fe;
  --primary-hover: #38bdf8;
  --primary-glow: rgba(0, 242, 254, 0.35);
  --accent: #818cf8;
  --accent-purple: #c084fc;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 30px rgba(0, 242, 254, 0.22);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
  
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  background-color: #070a13;
}

/* 动态背景 Canvas 固定在底层 */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 0.95;
}

/* 动态流光极光底层 (融入柔美樱粉与专线冷青色) */
.aurora-glow {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1300px;
  height: 600px;
  background: radial-gradient(ellipse at top, rgba(244, 114, 182, 0.24) 0%, rgba(129, 140, 248, 0.18) 35%, rgba(0, 242, 254, 0.14) 65%, transparent 80%);
  filter: blur(95px);
  z-index: 0;
  pointer-events: none;
  animation: auroraPulse 12s ease-in-out infinite alternate;
}

@keyframes auroraPulse {
  0% { transform: translateX(-50%) scale(1); opacity: 0.75; }
  50% { transform: translateX(-48%) scale(1.12); opacity: 1; }
  100% { transform: translateX(-52%) scale(0.95); opacity: 0.85; }
}

/* ==========================================================================
   绝美动态粉色神尊天狐 (8K超高清大师级灵狐 · 巨幕居中悬浮呼吸与3D视差交互)
   ========================================================================== */
.bg-fox-wrapper {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(1520px, 98vw);
  height: min(1000px, 94vh);
  pointer-events: none;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  mix-blend-mode: screen;
  opacity: 0.88;
  will-change: transform;
}

.bg-fox-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  /* 柔和羽化边缘，宽阔平滑地与暗黑星空背景天衣无缝 */
  mask-image: radial-gradient(ellipse 72% 70% at 50% 50%, rgba(0, 0, 0, 1) 40%, rgba(0, 0, 0, 0.9) 62%, rgba(0, 0, 0, 0) 80%);
  -webkit-mask-image: radial-gradient(ellipse 72% 70% at 50% 50%, rgba(0, 0, 0, 1) 40%, rgba(0, 0, 0, 0.9) 62%, rgba(0, 0, 0, 0) 80%);
  filter: drop-shadow(0 0 55px rgba(244, 114, 182, 0.6)) drop-shadow(0 0 110px rgba(56, 189, 248, 0.4));
  animation: celestialFoxFloat 8s ease-in-out infinite;
}

@keyframes celestialFoxFloat {
  0%, 100% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-18px) scale(1.03);
  }
}

@media (max-width: 1200px) {
  .bg-fox-wrapper {
    width: min(1280px, 98vw);
    height: min(850px, 92vh);
    opacity: 0.80;
  }
}

@media (max-width: 1024px) {
  .bg-fox-wrapper {
    width: min(980px, 98vw);
    height: min(720px, 85vh);
    opacity: 0.72;
  }
}

@media (max-width: 768px) {
  .bg-fox-wrapper {
    width: 100vw;
    height: 70vh;
    opacity: 0.62;
  }
}

/* 全站内容外层包裹器：层级高于动态背景 (z-index: 1) */
.site-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

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

.container {
  width: 100%;
  max-width: 1320px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* 头部导航栏 */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 10, 19, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

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

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 44px;
  width: auto;
}

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

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 6px 2px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

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

/* 按钮通用风格 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #ede9fe 0%, #c084fc 38%, #a855f7 72%, #7c3aed 100%);
  color: #0a0319;
  box-shadow: 0 4px 20px rgba(192, 132, 252, 0.42), 0 0 14px rgba(237, 233, 254, 0.25);
  font-weight: 700;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(192, 132, 252, 0.68), 0 0 22px rgba(237, 233, 254, 0.45);
  filter: brightness(1.08);
}

.btn-secondary {
  background: rgba(56, 189, 248, 0.1);
  color: var(--primary);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.btn-secondary:hover {
  background: rgba(56, 189, 248, 0.2);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-lg {
  padding: 14px 34px;
  font-size: 16px;
}

.btn-block {
  width: 100%;
}

/* Hero 首屏区 */
.hero-section {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.28);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 24px;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.15);
}

.hero-pill .pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--success);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--success);
  animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.25); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-title {
  font-size: clamp(32px, 5.2vw, 58px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 20%, #38bdf8 65%, #00f2fe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-alt {
  background: linear-gradient(135deg, #00f2fe 0%, #818cf8 50%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--text-muted);
  max-width: 840px;
  margin: 0 auto 36px;
  line-height: 1.65;
}

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

/* 信任背书特征网格 */
.trust-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 13.5px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.trust-item svg {
  color: var(--primary);
}

/* 数据展示横幅 */
.stats-banner {
  margin: 40px 0 70px;
  background: linear-gradient(180deg, rgba(19, 27, 50, 0.6) 0%, rgba(13, 18, 34, 0.4) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-card);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stat-item {
  padding: 10px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-item:last-child {
  border-right: none;
}

.stat-value {
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--primary);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 13.5px;
  color: var(--text-muted);
}

/* 通用Section样式 */
.section {
  padding: 70px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 48px;
}

.section-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius-full);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 15.5px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 核心特性卡片网格 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-color-glow);
  box-shadow: 0 12px 32px rgba(0, 242, 254, 0.15);
  background: var(--bg-card-hover);
}

.feature-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 20px;
}

.feature-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}

.feature-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   价格区域：所有价格严格同排（DESKTOP 5列并排）
   ========================================================================== */
.pricing-section {
  padding: 80px 0;
  background: radial-gradient(circle at 50% 50%, rgba(13, 21, 46, 0.7) 0%, rgba(7, 10, 19, 0.9) 100%);
  border-top: 1px solid rgba(56, 189, 248, 0.1);
  border-bottom: 1px solid rgba(56, 189, 248, 0.1);
}

.pricing-notice {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 20px;
  background: rgba(0, 242, 254, 0.06);
  border: 1px dashed rgba(0, 242, 254, 0.3);
  border-radius: var(--radius-md);
  color: var(--primary);
  font-size: 14px;
  max-width: 680px;
  margin: 0 auto 34px;
}

/* 核心容器：5列完全在同一行排开 */
.pricing-grid-same-row {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  align-items: stretch;
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 26px 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: var(--transition);
}

.price-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-color-glow);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 242, 254, 0.18);
  background: var(--bg-card-hover);
}

/* 爆款高亮卡片 */
.price-card.featured {
  border: 2px solid var(--primary);
  background: linear-gradient(180deg, rgba(16, 29, 60, 0.9) 0%, rgba(10, 16, 35, 0.95) 100%);
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.28);
  transform: translateY(-4px);
}

.price-card.featured:hover {
  transform: translateY(-10px);
  box-shadow: 0 0 45px rgba(0, 242, 254, 0.45);
}

.featured-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #00f2fe, #38bdf8);
  color: #040915;
  font-size: 11px;
  font-weight: 800;
  padding: 3px 12px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 10px rgba(0, 242, 254, 0.4);
}

.plan-header {
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 18px;
  margin-bottom: 18px;
}

.plan-name {
  font-size: 19px;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--text-main);
}

.plan-desc {
  font-size: 12px;
  color: var(--text-muted);
  min-height: 36px;
  line-height: 1.4;
  margin-bottom: 14px;
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
  margin-bottom: 8px;
}

.price-currency {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
}

.price-amount {
  font-size: 38px;
  font-weight: 900;
  font-family: var(--font-mono);
  color: var(--text-main);
  letter-spacing: -1px;
}

.price-period {
  font-size: 13px;
  color: var(--text-muted);
}

.plan-traffic-pill {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(0, 242, 254, 0.1);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(0, 242, 254, 0.22);
}

.plan-features {
  list-style: none;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-check-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.4;
}

.feature-check-item svg {
  flex-shrink: 0;
  color: var(--primary);
  margin-top: 2px;
}

/* 客户端支持区域 */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.client-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
}

.client-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-color-glow);
}

.client-icon {
  width: 50px;
  height: 50px;
  margin: 0 auto 16px;
  color: var(--primary);
}

.client-name {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}

.client-support {
  font-size: 13px;
  color: var(--text-muted);
}

/* 文章推荐网格专栏 */
.articles-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-color-glow);
  box-shadow: 0 10px 25px rgba(0, 242, 254, 0.12);
}

.article-tag {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(129, 140, 248, 0.15);
  color: var(--accent);
  border: 1px solid rgba(129, 140, 248, 0.3);
  margin-bottom: 12px;
  width: fit-content;
}

.article-card-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 10px;
  color: var(--text-main);
}

.article-card-title a:hover {
  color: var(--primary);
}

.article-excerpt {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-dim);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 12px;
}

.read-more-link {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.read-more-link:hover {
  gap: 7px;
}

/* 用户评价网格 */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.review-card:hover {
  border-color: var(--border-color-glow);
  transform: translateY(-4px);
}

.stars {
  color: #fbbf24;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.review-content {
  font-size: 14px;
  color: #cbd5e1;
  line-height: 1.6;
  margin-bottom: 18px;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 14px;
}

.author-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #040915;
  font-size: 15px;
}

.author-info h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
}

.author-info span {
  font-size: 12px;
  color: var(--text-muted);
}

/* 常见问题 FAQ 手风琴 */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.faq-item:hover {
  border-color: var(--border-color-glow);
}

.faq-question {
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-icon {
  font-size: 18px;
  color: var(--primary);
  transition: transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 14.5px;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 24px 20px;
}

/* 权威外链与资源聚合 */
.resources-bar {
  margin: 40px 0 0;
  padding: 24px;
  background: rgba(13, 18, 34, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.resources-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.resources-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.resources-links a {
  font-size: 13px;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.04);
}

.resources-links a:hover {
  color: var(--primary);
  background: rgba(0, 242, 254, 0.1);
}

/* 页脚 */
.footer {
  background: #040710;
  border-top: 1px solid rgba(56, 189, 248, 0.12);
  padding: 60px 0 30px;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 16px 0 20px;
  max-width: 320px;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--text-main);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 13.5px;
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
  color: var(--text-dim);
}

/* ==========================================================================
   响应式调整 (Mobile & Tablet)
   ========================================================================== */
@media (max-width: 1200px) {
  .pricing-grid-same-row {
    grid-template-columns: repeat(5, minmax(200px, 1fr));
    overflow-x: auto;
    padding-bottom: 16px;
    scroll-snap-type: x mandatory;
  }
  .price-card {
    scroll-snap-align: start;
    min-width: 210px;
  }
}

@media (max-width: 992px) {
  .features-grid,
  .articles-preview-grid,
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-section {
    padding: 50px 0 40px;
  }
  .features-grid,
  .articles-preview-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .pricing-grid-same-row {
    grid-template-columns: repeat(5, 240px);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}