/* ====================================================================
   次元链接（Cylink） (cylink.autos) - 全局动漫科技风样式表
   特性：动漫渐变 / 樱花星空氛围 / 全图呼吸灯 / 发光CTA / 赛博轨迹
   ==================================================================== */

:root {
  --bg-page: #0b0f19;
  --bg-surface: rgba(17, 24, 39, 0.78);
  --bg-surface-hover: rgba(30, 41, 59, 0.88);
  --bg-subtle: rgba(30, 41, 59, 0.6);
  --text-main: #f8fafc;
  --text-muted: #cbd5e1;
  --text-light: #94a3b8;
  --border-color: rgba(148, 163, 184, 0.18);
  --border-glow: rgba(129, 140, 248, 0.4);
  --border-focus: #38bdf8;
  --anime-pink: #f43f5e;
  --anime-sakura: #fb7185;
  --anime-purple: #a855f7;
  --anime-cyan: #38bdf8;
  --anime-blue: #3b82f6;
  --anime-gradient: linear-gradient(135deg, #f43f5e 0%, #a855f7 50%, #38bdf8 100%);
  --color-primary: #38bdf8;
  --color-primary-hover: #0284c7;
  --color-tag-bg: rgba(244, 63, 94, 0.15);
  --color-tag-text: #fda4af;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 25px rgba(244, 63, 94, 0.35), 0 0 50px rgba(56, 189, 248, 0.2);
  --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --header-height: 68px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-stack);
  background-color: var(--bg-page);
  background-image: 
    radial-gradient(ellipse at 50% 0%, rgba(30, 27, 75, 0.6) 0%, transparent 60%),
    radial-gradient(circle at 15% 40%, rgba(244, 63, 94, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 70%, rgba(56, 189, 248, 0.08) 0%, transparent 40%);
  color: var(--text-main);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* 动漫全屏星空与花瓣 Canvas 挂载层 */
#anime-sky-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

a {
  color: var(--anime-cyan);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--anime-sakura);
  text-shadow: 0 0 10px rgba(251, 113, 133, 0.5);
}

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

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.25rem;
  position: relative;
  z-index: 2;
}

/* ====================================================================
   全图呼吸灯核心动画
   ==================================================================== */

@keyframes animeBreatheGlow {
  0%, 100% {
    box-shadow: 0 0 18px rgba(244, 63, 94, 0.35), 0 0 32px rgba(56, 189, 248, 0.2);
    border-color: rgba(244, 63, 94, 0.6);
  }
  50% {
    box-shadow: 0 0 30px rgba(168, 85, 247, 0.5), 0 0 50px rgba(56, 189, 248, 0.4);
    border-color: rgba(56, 189, 248, 0.8);
  }
}

@keyframes animeBtnShimmer {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes animePulseDot {
  0%, 100% { transform: scale(1); opacity: 0.9; }
  50% { transform: scale(1.4); opacity: 0.4; }
}

/* ====================================================================
   页眉 Header & 导航
   ==================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.brand-logo-img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.6));
  transition: transform 0.3s ease;
}

.brand-link:hover .brand-logo-img {
  transform: rotate(15deg) scale(1.08);
}

.brand-title {
  background: linear-gradient(135deg, #ffffff 30%, #38bdf8 70%, #f472b6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.6rem;
}

.nav-link {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
  text-shadow: 0 0 10px rgba(56, 189, 248, 0.6);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--anime-gradient);
  transition: width 0.25s ease;
  border-radius: 2px;
}

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

/* 动漫 CTA 按钮样式 */
.nav-cta, .btn-primary, .pricing-cta.primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.55rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff !important;
  background: var(--anime-gradient);
  background-size: 200% 200%;
  animation: animeBtnShimmer 4s ease infinite;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 18px rgba(244, 63, 94, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.4);
  transition: all 0.2s ease;
  border: 1px solid rgba(255, 255, 255, 0.25);
  position: relative;
  overflow: hidden;
}

.nav-cta:hover, .btn-primary:hover, .pricing-cta.primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 0 28px rgba(244, 63, 94, 0.6), 0 0 45px rgba(56, 189, 248, 0.4);
}

.nav-cta:active, .btn-primary:active, .pricing-cta.primary:active {
  transform: scale(0.98);
}

.btn-secondary, .pricing-cta.outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.55rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(8px);
  transition: all 0.2s ease;
}

.btn-secondary:hover, .pricing-cta.outline:hover {
  border-color: var(--anime-cyan);
  background: rgba(51, 65, 85, 0.85);
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.35);
  color: #ffffff;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  color: var(--text-main);
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
}

/* ====================================================================
   Hero 首屏区块
   ==================================================================== */

.hero-section {
  padding: 5rem 0 4rem;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 860px;
  margin: 0 auto;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #ffffff 0%, #bae6fd 50%, #fbcfe8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 20px rgba(56, 189, 248, 0.25));
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 2.2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 2.75rem;
  flex-wrap: wrap;
}

.hero-trust-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.4rem;
  padding-top: 1.8rem;
  border-top: 1px dashed rgba(148, 163, 184, 0.2);
}

.trust-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-light);
  background: rgba(30, 41, 59, 0.4);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.trust-icon {
  width: 16px;
  height: 16px;
  color: var(--anime-cyan);
}

/* ====================================================================
   全新互动区块：动漫专线轨迹与可拖动物理节点实验室
   ==================================================================== */

.route-interactive-section {
  padding: 3.5rem 0;
  position: relative;
  z-index: 2;
}

.route-interactive-box {
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), inset 0 0 20px rgba(56, 189, 248, 0.05);
  position: relative;
  overflow: hidden;
}

.route-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.85rem;
}

.route-header-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.pulse-dot-live {
  width: 10px;
  height: 10px;
  background-color: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 10px #22c55e;
  display: inline-block;
  animation: animePulseDot 1.6s infinite ease-in-out;
}

.route-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-reset-route {
  font-size: 0.85rem;
  color: var(--anime-cyan);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.08);
  transition: all 0.2s ease;
}

.btn-reset-route:hover {
  background: rgba(56, 189, 248, 0.2);
  border-color: var(--anime-cyan);
  color: #ffffff;
}

.route-canvas-wrap {
  width: 100%;
  height: 320px;
  position: relative;
  border-radius: var(--radius-md);
  background: radial-gradient(circle at 50% 50%, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0.9) 100%);
  border: 1px solid rgba(148, 163, 184, 0.1);
}

#route-trace-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.route-tips {
  margin-top: 0.85rem;
  font-size: 0.85rem;
  color: var(--text-light);
  text-align: center;
}

/* ====================================================================
   通用 Content Section 样式
   ==================================================================== */

.content-section {
  padding: 4.5rem 0;
  border-bottom: 1px solid var(--border-color);
  position: relative;
  z-index: 2;
}

.section-header {
  text-align: center;
  max-width: 660px;
  margin: 0 auto 3rem;
}

.section-title {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
  background: linear-gradient(135deg, #ffffff 40%, #bae6fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-description {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ====================================================================
   1. 特性卡 (Features - 4 张)
   ==================================================================== */

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.6rem;
}

.feature-card {
  background: var(--bg-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
  position: relative;
}

.feature-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(129, 140, 248, 0.2);
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(56, 189, 248, 0.12);
  color: var(--anime-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  border: 1px solid rgba(56, 189, 248, 0.3);
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.2);
}

.feature-icon-wrap svg {
  width: 26px;
  height: 26px;
}

.feature-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.6rem;
}

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

/* ====================================================================
   2. 流媒体支持
   ==================================================================== */

.streaming-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.streaming-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1.35rem;
  background: var(--bg-surface);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all 0.2s ease;
}

.streaming-item:hover {
  border-color: var(--anime-pink);
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(244, 63, 94, 0.2);
}

.streaming-icon {
  width: 38px;
  height: 38px;
  color: var(--anime-pink);
  flex-shrink: 0;
  filter: drop-shadow(0 0 6px rgba(244, 63, 94, 0.4));
}

.streaming-info h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.streaming-info p {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* ====================================================================
   3. AI 工具支持
   ==================================================================== */

.ai-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.ai-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1.4rem;
  background: var(--bg-surface);
  backdrop-filter: blur(8px);
  transition: all 0.2s ease;
}

.ai-item:hover {
  border-color: var(--anime-purple);
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(168, 85, 247, 0.25);
}

.ai-item-head {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.75rem;
}

.ai-icon {
  width: 28px;
  height: 28px;
  color: var(--anime-purple);
  filter: drop-shadow(0 0 6px rgba(168, 85, 247, 0.4));
}

.ai-item-head h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.ai-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ====================================================================
   4. 使用场景卡 (3 张)
   ==================================================================== */

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
}

.scenario-card {
  background: var(--bg-surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.85rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.scenario-card:hover {
  border-color: var(--anime-cyan);
  box-shadow: 0 0 22px rgba(56, 189, 248, 0.25);
}

.scenario-device-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  border: 1px solid rgba(244, 63, 94, 0.3);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.scenario-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.8rem;
}

.scenario-desc {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ====================================================================
   5. 定价区 (Pricing - 3 档) - 呼吸灯高亮突出
   ==================================================================== */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.85rem;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
}

/* 推荐档位全图呼吸灯动画 */
.pricing-card.featured {
  background: rgba(22, 30, 49, 0.88);
  border: 2px solid var(--anime-pink);
  animation: animeBreatheGlow 3.5s ease-in-out infinite;
  transform: translateY(-6px);
}

.featured-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--anime-gradient);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.3rem 1rem;
  border-radius: 999px;
  letter-spacing: 0.05em;
  box-shadow: 0 0 15px rgba(244, 63, 94, 0.5);
}

.pricing-header {
  margin-bottom: 1.6rem;
  text-align: center;
}

.plan-name {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.35rem;
}

.plan-target {
  font-size: 0.85rem;
  color: var(--text-light);
}

.plan-price-wrap {
  margin: 1.4rem 0;
}

.plan-currency {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--anime-cyan);
}

.plan-amount {
  font-size: 2.8rem;
  font-weight: 900;
  color: #ffffff;
  letter-spacing: -0.03em;
  text-shadow: 0 0 15px rgba(56, 189, 248, 0.3);
}

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

.plan-features {
  list-style: none;
  margin-bottom: 2.2rem;
  flex-grow: 1;
}

.plan-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
}

.check-icon {
  width: 18px;
  height: 18px;
  color: var(--anime-cyan);
  flex-shrink: 0;
  margin-top: 2px;
  filter: drop-shadow(0 0 4px rgba(56, 189, 248, 0.5));
}

/* ====================================================================
   6. FAQ 常见问题 (手风琴)
   ==================================================================== */

.faq-container {
  max-width: 780px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  backdrop-filter: blur(10px);
  margin-bottom: 1rem;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

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

.faq-summary {
  padding: 1.2rem 1.4rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  list-style: none;
}

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

.faq-arrow {
  width: 18px;
  height: 18px;
  color: var(--anime-cyan);
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

details[open] .faq-arrow {
  transform: rotate(180deg);
  color: var(--anime-pink);
}

details[open] .faq-summary {
  border-bottom: 1px solid var(--border-color);
  background: rgba(30, 41, 59, 0.4);
}

.faq-answer {
  padding: 1.2rem 1.4rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  background: rgba(15, 23, 42, 0.6);
}

/* ====================================================================
   倒数二：Final CTA
   ==================================================================== */

.final-cta-section {
  padding: 5rem 0;
  background: radial-gradient(circle at 50% 50%, #1e1b4b 0%, #0b0f19 100%);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  text-align: center;
  position: relative;
  z-index: 2;
}

.final-cta-content {
  max-width: 700px;
  margin: 0 auto;
}

.final-cta-title {
  font-size: 2.2rem;
  font-weight: 900;
  color: #ffffff;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #ffffff 0%, #f472b6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 15px rgba(244, 63, 94, 0.3));
}

.final-cta-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2.2rem;
  line-height: 1.7;
}

.btn-white {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.8rem 2.2rem;
  font-size: 1.05rem;
  font-weight: 800;
  background: #ffffff;
  color: #0f172a !important;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 25px rgba(255, 255, 255, 0.5);
  transition: all 0.2s ease;
}

.btn-white:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 0 35px rgba(255, 255, 255, 0.8), 0 0 50px rgba(56, 189, 248, 0.5);
}

/* ====================================================================
   页脚 Footer
   ==================================================================== */

.site-footer {
  background-color: rgba(11, 15, 25, 0.95);
  border-top: 1px solid var(--border-color);
  padding: 2.8rem 0 2rem;
  font-size: 0.875rem;
  color: var(--text-light);
  position: relative;
  z-index: 2;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.6rem;
  list-style: none;
}

.footer-nav a {
  color: var(--text-muted);
  font-size: 0.925rem;
}

.footer-nav a:hover {
  color: var(--anime-cyan);
}

.footer-affiliate-notice {
  color: var(--text-light);
  font-size: 0.85rem;
}

.footer-copyright {
  color: var(--text-light);
  font-size: 0.825rem;
}

/* ====================================================================
   移动端吸底 CTA
   ==================================================================== */

.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 99;
  background-color: rgba(11, 15, 25, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-glow);
  padding: 0.75rem 1.2rem;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.6);
}

.mobile-sticky-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  background: var(--anime-gradient);
  color: #ffffff !important;
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 15px rgba(244, 63, 94, 0.5);
}

/* ====================================================================
   文章与独立页样式 (Guides / Articles / Legal)
   ==================================================================== */

.page-wrapper {
  padding: 3.5rem 0 4.5rem;
  position: relative;
  z-index: 2;
}

.page-header {
  margin-bottom: 2.75rem;
  text-align: center;
}

.page-header-title {
  font-size: 2.2rem;
  font-weight: 900;
  color: #ffffff;
  letter-spacing: -0.01em;
  margin-bottom: 0.85rem;
  background: linear-gradient(135deg, #ffffff 40%, #bae6fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-header-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto;
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 1.8rem;
}

.breadcrumb-nav a {
  color: var(--text-muted);
}

.breadcrumb-nav a:hover {
  color: var(--anime-cyan);
}

.breadcrumb-sep {
  color: #475569;
}

.guides-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.8rem;
}

.guide-card {
  background: var(--bg-surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}

.guide-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(56, 189, 248, 0.25);
  transform: translateY(-3px);
}

.guide-card-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 0.85rem;
}

.guide-card-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.85rem;
  line-height: 1.45;
}

.guide-card-title a {
  color: #ffffff;
}

.guide-card-title a:hover {
  color: var(--anime-cyan);
}

.guide-card-excerpt {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.4rem;
  flex-grow: 1;
}

.guide-card-link {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--anime-cyan);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.article-layout, .legal-content {
  max-width: 860px;
  margin: 0 auto;
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.8rem;
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.5);
}

.article-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.6rem;
  margin-bottom: 2rem;
}

.article-h1 {
  font-size: 2.1rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.35;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #ffffff 40%, #bae6fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.4rem;
  font-size: 0.875rem;
  color: var(--text-light);
}

.article-intro {
  background: rgba(30, 27, 75, 0.45);
  border-left: 4px solid var(--anime-cyan);
  padding: 1.25rem 1.4rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 1.05rem;
  color: #e0e7ff;
  line-height: 1.75;
  margin-bottom: 2.2rem;
  box-shadow: inset 0 0 15px rgba(56, 189, 248, 0.1);
}

.article-body h2, .legal-content h2 {
  font-size: 1.45rem;
  font-weight: 800;
  color: #ffffff;
  margin: 2.4rem 0 1rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid var(--border-color);
}

.article-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 1.6rem 0 0.85rem;
}

.article-body p, .legal-content p {
  font-size: 1.025rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 1.35rem;
}

.article-body ul, .article-body ol, .legal-content ul {
  margin: 1rem 0 1.4rem 1.6rem;
  color: var(--text-muted);
}

.article-body li, .legal-content li {
  margin-bottom: 0.55rem;
  line-height: 1.7;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8rem 0;
  font-size: 0.95rem;
}

.article-body th, .article-body td {
  border: 1px solid var(--border-color);
  padding: 0.85rem 1.1rem;
  text-align: left;
}

.article-body th {
  background: rgba(30, 41, 59, 0.8);
  color: #ffffff;
  font-weight: 700;
}

.article-faq-block {
  margin-top: 2.6rem;
  padding-top: 1.6rem;
  border-top: 1px dashed var(--border-color);
}

.article-internal-links {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1.4rem 1.6rem;
  margin: 2.2rem 0;
}

.article-internal-links h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.85rem;
  color: #ffffff;
}

.article-internal-links ul {
  margin: 0 0 0 1.4rem;
}

.article-cta-box {
  background: radial-gradient(circle at 50% 50%, #1e1b4b 0%, #0f172a 100%);
  border: 1px solid var(--border-glow);
  box-shadow: 0 0 25px rgba(129, 140, 248, 0.2);
  color: #ffffff;
  padding: 2.4rem;
  border-radius: var(--radius-md);
  text-align: center;
  margin-top: 2.8rem;
}

.article-cta-box h3 {
  color: #ffffff;
  font-size: 1.45rem;
  margin-bottom: 0.75rem;
}

.article-cta-box p {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 1.6rem;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}

.sitemap-columns {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.2rem;
  margin-top: 1.6rem;
}

.sitemap-group h2 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--border-glow);
  padding-bottom: 0.5rem;
}

.sitemap-list {
  list-style: none;
}

.sitemap-list li {
  margin-bottom: 0.85rem;
}

.sitemap-list a {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sitemap-list a:hover {
  color: var(--anime-cyan);
}

/* ====================================================================
   响应式断点适配
   ==================================================================== */

@media (max-width: 900px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }
  .pricing-card.featured {
    transform: none;
  }
  .scenarios-grid {
    grid-template-columns: 1fr;
  }
  .streaming-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .ai-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 1.8rem;
    gap: 1.2rem;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-cta {
    width: 100%;
    margin-top: 0.6rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn-primary, .btn-secondary {
    width: 100%;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .guides-grid {
    grid-template-columns: 1fr;
  }

  .streaming-grid {
    grid-template-columns: 1fr;
  }

  .ai-grid {
    grid-template-columns: 1fr;
  }

  .sitemap-columns {
    grid-template-columns: 1fr;
  }

  .article-layout, .legal-content {
    padding: 1.8rem 1.4rem;
  }

  .mobile-sticky-cta.is-visible {
    display: block;
  }

  body.has-sticky-cta {
    padding-bottom: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}