/* 次元链接（Cylink） cylink.buzz - 动漫视觉与交互全面升级样式表 (Layer 1.5 动漫风格) */
:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text-main: #0f172a;
  --color-text-muted: #475569;
  --color-text-subtle: #64748b;
  --color-border: #e2e8f0;
  --color-border-subtle: #cbd5e1;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-accent-soft: #eff6ff;
  --color-accent-tint: #bfdbfe;
  --color-sakura: #f43f5e;
  --color-sakura-soft: #fff1f2;
  --color-neon-cyan: #0284c7;
  --color-neon-glow: rgba(37, 99, 235, 0.28);
  --color-surface-hover: #f1f5f9;
  --container-width: 1120px;
}

*, *::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-sans);
  background-color: var(--color-bg);
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(37, 99, 235, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 85% 65%, rgba(244, 63, 94, 0.04) 0%, transparent 40%),
    radial-gradient(#cbd5e1 0.75px, transparent 0.75px);
  background-size: 100% 100%, 100% 100%, 24px 24px;
  color: var(--color-text-main);
  line-height: 1.65;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* 全屏轻量粒子动效画布 (流星 + 樱花落瓣) */
#animeCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.site-header, main, .site-footer, .mobile-sticky-cta, .anime-fx-control {
  position: relative;
  z-index: 2;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

a:hover {
  color: var(--color-accent-hover);
}

img, svg {
  display: block;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* 呼吸灯效果 Keyframes */
@keyframes animeBreathe {
  0%, 100% {
    box-shadow: 0 0 12px rgba(37, 99, 235, 0.2), 0 0 2px rgba(37, 99, 235, 0.4);
    border-color: rgba(37, 99, 235, 0.3);
  }
  50% {
    box-shadow: 0 0 24px rgba(37, 99, 235, 0.45), 0 0 6px rgba(37, 99, 235, 0.7);
    border-color: rgba(37, 99, 235, 0.6);
  }
}

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

@keyframes animeShimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

@keyframes animeBeamFlow {
  0% {
    stroke-dashoffset: 100;
  }
  100% {
    stroke-dashoffset: 0;
  }
}

/* 呼吸灯微标 */
.anime-led-pulse {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #10b981;
  position: relative;
  vertical-align: middle;
  margin-right: 6px;
}

.anime-led-pulse::after {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: 50%;
  background-color: #10b981;
  animation: animePulseDot 1.8s infinite ease-in-out;
}

/* Header & Nav */
.site-header {
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 2px 14px rgba(15, 23, 42, 0.03);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-main);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand:hover {
  color: var(--color-accent);
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  filter: drop-shadow(0 2px 6px rgba(37, 99, 235, 0.3));
}

.brand:hover .brand-icon {
  transform: rotate(-6deg) scale(1.08);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-link {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 6px 4px;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: all 0.2s ease;
  transform: translateX(-50%);
  border-radius: 2px;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-accent);
}

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

/* 动漫能量 CTA 按钮规范 */
.btn-primary, .nav-btn, .mobile-sticky-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff !important;
  font-weight: 700;
  font-size: 1rem;
  padding: 12px 28px;
  border-radius: 8px;
  min-height: 44px;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  position: relative;
  overflow: hidden;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-primary::after, .nav-btn::after, .mobile-sticky-btn::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transform: skewX(-20deg);
  transition: none;
}

.btn-primary:hover, .nav-btn:hover, .mobile-sticky-btn:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45), 0 0 12px rgba(96, 165, 250, 0.5);
  transform: translateY(-2px);
}

.btn-primary:hover::after, .nav-btn:hover::after, .mobile-sticky-btn:hover::after {
  left: 150%;
  transition: left 0.6s ease;
}

.btn-primary:active, .nav-btn:active, .mobile-sticky-btn:active {
  transform: translateY(1px);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.nav-btn {
  font-size: 0.875rem;
  padding: 8px 20px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-surface);
  color: var(--color-text-main) !important;
  font-weight: 700;
  font-size: 1rem;
  padding: 12px 26px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  min-height: 44px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-secondary:hover {
  background-color: var(--color-surface-hover);
  border-color: var(--color-border-subtle);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--color-text-main);
  min-width: 44px;
  min-height: 44px;
}

/* Hero Section */
.hero-section {
  padding: 64px 0 60px;
  background-color: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.hero-wrap {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.hero-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78125rem;
  font-weight: 700;
  color: #1e40af;
  background-color: #dbeafe;
  border: 1px solid #93c5fd;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.1);
}

.hero-title {
  font-size: 2.375rem;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text-main);
  margin-bottom: 18px;
}

.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 30px;
}

.hero-cta-group {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
}

.trust-badge-list {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 4px 10px;
  border-radius: 6px;
  font-weight: 600;
  color: var(--color-text-main);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

/* 动漫线路轨迹交互控制台 (Anime Cyber-Route Console) */
.anime-console-card {
  background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
  position: relative;
  overflow: hidden;
  animation: animeBreathe 5s infinite ease-in-out;
}

.anime-console-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 18px;
}

.console-title {
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 6px;
}

.console-chip {
  font-size: 0.75rem;
  font-weight: 700;
  color: #047857;
  background-color: #d1fae5;
  border: 1px solid #a7f3d0;
  padding: 3px 10px;
  border-radius: 12px;
}

/* 线路轨迹动画展示区域 */
.route-track-display {
  background-color: #0f172a;
  border-radius: 8px;
  padding: 16px;
  color: #f8fafc;
  margin-bottom: 18px;
  position: relative;
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.3);
}

.track-svg {
  width: 100%;
  height: 60px;
  display: block;
}

.track-beam-line {
  stroke-dasharray: 8 4;
  animation: animeBeamFlow 1.5s linear infinite;
}

.track-legend {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: #94a3b8;
  margin-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 6px;
}

/* 交互节点选择按钮组 (可点击快速切换线路) */
.route-node-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 18px;
}

.node-btn {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 8px 4px;
  font-size: 0.78125rem;
  font-weight: 700;
  color: var(--color-text-muted);
  cursor: pointer;
  text-align: center;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  min-height: 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2px;
}

.node-btn:hover {
  border-color: var(--color-accent-tint);
  background-color: var(--color-surface-hover);
  color: var(--color-accent);
}

.node-btn.active {
  background-color: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 0 10px rgba(37, 99, 235, 0.2);
}

.node-btn-ping {
  font-size: 0.7rem;
  color: #10b981;
  font-weight: 800;
}

/* 可拖动交互滑块 (Draggable Bandwidth Slider) */
.anime-slider-group {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 14px;
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.slider-val-tag {
  color: var(--color-accent);
  font-size: 0.875rem;
}

.anime-slider {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: #cbd5e1;
  border-radius: 3px;
  outline: none;
  cursor: grab;
  margin-bottom: 8px;
}

.anime-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-accent);
  cursor: grab;
  box-shadow: 0 0 10px rgba(37, 99, 235, 0.5);
  border: 2px solid #ffffff;
  transition: transform 0.15s ease;
}

.anime-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.slider-tip {
  font-size: 0.75rem;
  color: var(--color-text-subtle);
  line-height: 1.5;
}

/* Sections 通用 */
.section {
  padding: 68px 0;
}

.section-alt {
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-accent);
  background-color: var(--color-accent-soft);
  border: 1px solid var(--color-accent-tint);
  padding: 3px 12px;
  border-radius: 12px;
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
}

/* Features Grid (4 cards) */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 30px;
  position: relative;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.03);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-tint);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.08), 0 0 12px rgba(37, 99, 235, 0.1);
}

.feature-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background-color: var(--color-accent-soft);
  border: 1px solid var(--color-accent-tint);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--color-accent);
  transition: transform 0.2s ease;
}

.feature-card:hover .feature-icon-wrap {
  transform: scale(1.1);
}

.feature-card-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--color-text-main);
}

.feature-card-text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* Benefits / Stream & AI Section */
.support-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.support-block {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 32px;
  transition: all 0.25s ease;
}

.support-block:hover {
  border-color: var(--color-accent-tint);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.support-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 10px;
}

.support-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.platform-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.platform-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-main);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.support-bullets {
  list-style: none;
  font-size: 0.875rem;
  color: var(--color-text-main);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.support-bullets li {
  position: relative;
  padding-left: 18px;
  color: var(--color-text-muted);
}

.support-bullets li::before {
  content: "•";
  position: absolute;
  left: 2px;
  color: var(--color-accent);
  font-weight: bold;
}

/* Use Cases (3 cards) */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.03);
}

.case-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-tint);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.07);
}

.case-target {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text-subtle);
  margin-bottom: 6px;
}

.case-title {
  font-size: 1.1875rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 10px;
}

.case-device {
  display: inline-block;
  font-size: 0.8125rem;
  color: var(--color-accent);
  background-color: var(--color-accent-soft);
  padding: 4px 10px;
  border-radius: 6px;
  margin-bottom: 12px;
  font-weight: 600;
  border: 1px solid var(--color-accent-tint);
}

.case-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* Pricing Grid (3 tiers) */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 34px 26px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
}

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

.pricing-card.featured {
  border: 2px solid var(--color-accent);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.12), 0 0 16px rgba(37, 99, 235, 0.15);
  animation: animeBreathe 4s infinite ease-in-out;
}

.featured-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 3px 14px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.4);
}

.pricing-tier {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.pricing-target {
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
  margin-bottom: 20px;
}

.pricing-cost {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 18px;
}

.cost-symbol {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-text-main);
}

.cost-num {
  font-size: 2.375rem;
  font-weight: 900;
  color: var(--color-text-main);
  line-height: 1;
}

.cost-period {
  font-size: 0.875rem;
  color: var(--color-text-subtle);
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
  flex-grow: 1;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.pricing-features li {
  position: relative;
  padding-left: 22px;
}

.pricing-features li::before {
  content: "✓";
  position: absolute;
  left: 2px;
  color: var(--color-accent);
  font-weight: 900;
}

.pricing-btn {
  display: block;
  text-align: center;
  background-color: var(--color-bg);
  color: var(--color-text-main);
  border: 1px solid var(--color-border);
  font-weight: 700;
  font-size: 0.9375rem;
  padding: 10px 18px;
  border-radius: 8px;
  min-height: 44px;
  line-height: 22px;
  transition: all 0.2s ease;
}

.pricing-btn:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-accent);
  border-color: var(--color-accent-tint);
}

.pricing-card.featured .pricing-btn {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.pricing-card.featured .pricing-btn:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

/* FAQ Details/Summary native */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-detail {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.02);
}

.faq-detail[open] {
  border-color: var(--color-accent-tint);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.08);
}

.faq-summary {
  padding: 18px 24px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text-main);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  user-select: none;
}

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

.faq-summary::after {
  content: "+";
  font-size: 1.35rem;
  color: var(--color-text-subtle);
  transition: transform 0.2s ease;
}

.faq-detail[open] .faq-summary::after {
  content: "−";
  color: var(--color-accent);
}

.faq-detail-body {
  padding: 0 24px 20px;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

/* Final CTA */
.final-cta {
  padding: 76px 0;
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--color-border);
}

.cta-box {
  background: linear-gradient(145deg, #f8fafc 0%, #ffffff 100%);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 48px 32px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #2563eb, #38bdf8, #f43f5e);
}

.cta-title {
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.cta-text {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 28px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer (仅导航与版权，含联盟披露) */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 40px 0 28px;
  margin-top: auto;
}

.footer-nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.footer-legal-links {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  list-style: none;
}

.footer-legal-links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

.footer-legal-links a:hover {
  color: var(--color-accent);
}

.footer-bottom-info {
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
}

.footer-disclosure {
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
  margin-top: 12px;
  line-height: 1.6;
}

/* 动漫特效控制浮标 (Anime Effects Control Pill) */
.anime-fx-control {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: 6px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78125rem;
  font-weight: 700;
  color: var(--color-text-main);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.12);
  z-index: 90;
  transition: all 0.2s ease;
}

.anime-fx-control:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent-tint);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.2);
}

.fx-btn-toggle {
  background: none;
  border: none;
  color: var(--color-accent);
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 2px 4px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Mobile Sticky Bottom CTA */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-border);
  padding: 10px 16px;
  z-index: 100;
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
}

.mobile-sticky-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: var(--container-width);
  margin: 0 auto;
}

.mobile-sticky-info {
  display: flex;
  flex-direction: column;
}

.mobile-sticky-brand {
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--color-text-main);
}

.mobile-sticky-desc {
  font-size: 0.75rem;
  color: var(--color-text-subtle);
}

/* Page Layout */
.page-container {
  padding: 48px 0 64px;
}

.breadcrumbs {
  font-size: 0.875rem;
  color: var(--color-text-subtle);
  margin-bottom: 24px;
}

.breadcrumbs a {
  color: var(--color-text-muted);
  font-weight: 600;
}

.breadcrumbs a:hover {
  color: var(--color-accent);
}

.breadcrumbs span {
  margin: 0 6px;
}

.article-header {
  margin-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 24px;
}

.article-h1 {
  font-size: 2.125rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-text-main);
  margin-bottom: 14px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.875rem;
  color: var(--color-text-subtle);
  flex-wrap: wrap;
}

.article-lead {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  padding: 20px 24px;
  border-radius: 0 8px 8px 0;
  font-size: 1rem;
  color: var(--color-text-main);
  line-height: 1.75;
  margin-bottom: 34px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.02);
}

.article-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text-main);
  max-width: 820px;
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-top: 28px;
  margin-bottom: 12px;
}

.article-content p {
  margin-bottom: 20px;
  color: #334155;
}

.article-content ul, .article-content ol {
  margin-bottom: 22px;
  padding-left: 24px;
  color: #334155;
}

.article-content li {
  margin-bottom: 8px;
}

.article-table-wrap {
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.02);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  text-align: left;
}

.article-table th {
  background-color: var(--color-surface-hover);
  color: var(--color-text-main);
  font-weight: 800;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
}

.article-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.article-table tr:last-child td {
  border-bottom: none;
}

.article-faq {
  margin-top: 36px;
  padding: 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.02);
}

.article-faq h3 {
  font-size: 1.25rem;
  margin-top: 0;
  margin-bottom: 18px;
  color: var(--color-text-main);
}

.article-faq-item {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.article-faq-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.article-faq-q {
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.article-faq-a {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.article-cta-box {
  background-color: var(--color-surface);
  border: 2px solid var(--color-accent-tint);
  border-radius: 10px;
  padding: 32px;
  margin-top: 40px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.08);
}

.article-cta-box h3 {
  font-size: 1.375rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--color-text-main);
}

.article-cta-box p {
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.internal-links-box {
  margin-top: 40px;
  padding: 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
}

.internal-links-box h4 {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 14px;
}

.internal-links-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.internal-link-card {
  display: block;
  padding: 12px 14px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-text-main);
  transition: all 0.2s ease;
}

.internal-link-card:hover {
  background-color: var(--color-surface-hover);
  color: var(--color-accent);
  border-color: var(--color-accent-tint);
  transform: translateY(-2px);
}

/* Guides Index Grid */
.guides-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.guide-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.03);
}

.guide-item:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-tint);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.08);
}

.guide-icon-banner {
  width: 100%;
  height: 120px;
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-accent-soft) 100%);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--color-accent);
}

.guide-meta {
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
  margin-bottom: 8px;
}

.guide-title {
  font-size: 1.1875rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.guide-title a {
  color: var(--color-text-main);
}

.guide-title a:hover {
  color: var(--color-accent);
}

.guide-summary {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
  flex-grow: 1;
}

.guide-read {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-accent);
}

/* Accessibility & Focus Visible */
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  #animeCanvas {
    display: none !important;
  }
}

/* Responsive */
@media (max-width: 960px) {
  .hero-wrap {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .features-grid, .support-grid, .pricing-grid, .cases-grid, .guides-grid {
    grid-template-columns: 1fr;
  }
  .internal-links-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 1.875rem;
  }
  .section-title {
    font-size: 1.625rem;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .nav-menu {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    align-items: flex-start;
  }
  .nav-menu.open {
    display: flex;
  }
  .nav-btn {
    width: 100%;
  }
  .footer-nav-bar {
    flex-direction: column;
    align-items: flex-start;
  }
  body {
    padding-bottom: 64px;
  }
  .mobile-sticky-cta.visible {
    display: block;
  }
  .anime-fx-control {
    bottom: 74px;
    right: 12px;
  }
}