/* 一翻云 yifancloud.top 核心样式表 - 二次元动漫幻想与极速科技交互增强版 */
:root {
  --color-bg: #f6f8fe;
  --color-bg-gradient: linear-gradient(180deg, #f0f4ff 0%, #faf5ff 40%, #f6f8fe 100%);
  --color-surface: rgba(255, 255, 255, 0.92);
  --color-surface-subtle: #f1f4fc;
  --color-surface-card: #ffffff;
  --color-border: #e0e7ff;
  --color-border-hover: #c7d2fe;
  --color-text-main: #0f172a;
  --color-text-muted: #334155;
  --color-text-subtle: #64748b;

  /* 动漫高饱和二次元色彩 */
  --color-primary: #4f46e5;
  --color-primary-hover: #4338ca;
  --color-primary-light: #eef2ff;
  --color-primary-border: #c7d2fe;
  --color-sakura-pink: #ec4899;
  --color-sakura-light: #fdf2f8;
  --color-cyber-cyan: #06b6d4;
  --color-cyber-purple: #8b5cf6;
  --color-success: #10b981;

  /* 发光与呼吸灯色彩 */
  --glow-primary: rgba(79, 70, 229, 0.35);
  --glow-pink: rgba(236, 72, 153, 0.35);
  --glow-cyan: rgba(6, 182, 212, 0.35);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  --max-width: 1120px;
  --header-height: 68px;
  --touch-min: 44px;
}

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

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background-color: var(--color-bg);
  background-image: var(--color-bg-gradient);
  background-attachment: fixed;
  color: var(--color-text-main);
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  position: relative;
  min-height: 100vh;
}

/* 全屏动态粒子画布 (樱花与流星) */
#anime-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* 焦点可见优化 */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--color-sakura-pink);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

a:hover {
  color: var(--color-sakura-pink);
  text-decoration: none;
}

img, svg {
  vertical-align: middle;
}

/* 页面主要内容层级，置于画布之上 */
.site-header, main, .site-footer, .mobile-sticky-bar, .mascot-float-widget {
  position: relative;
  z-index: 2;
}

/* 布局容器 */
.site-container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* 头部导航 (二次元轻透毛玻璃) */
.site-header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(224, 231, 255, 0.8);
  z-index: 100;
  height: var(--header-height);
  box-shadow: 0 4px 20px rgba(79, 70, 229, 0.04);
}

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

.brand-logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-text-main);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: var(--touch-min);
  padding: 0 6px;
  transition: transform 0.2s ease;
}

.brand-logo:hover {
  transform: translateY(-1px);
}

.brand-logo-text {
  background: linear-gradient(135deg, #3730a3 0%, #4f46e5 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.01em;
}

.brand-icon-svg {
  width: 32px;
  height: 32px;
  filter: drop-shadow(0 2px 6px rgba(99, 102, 241, 0.3));
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  min-height: var(--touch-min);
  padding: 0 6px;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 8px;
  left: 6px;
  right: 6px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-sakura-pink));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
  border-radius: 2px;
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

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

/* 汉堡菜单按钮 */
.mobile-menu-btn {
  display: none;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 8px;
  width: var(--touch-min);
  height: var(--touch-min);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--color-text-main);
  transition: all 0.2s ease;
}

.mobile-menu-btn:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.mobile-menu-btn svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
}

/* 二次元炫彩动态 CTA 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-min);
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.btn-primary {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 55%, #ec4899 100%);
  background-size: 200% 200%;
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.2) inset;
}

.btn-primary::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-20deg);
  animation: btnShimmerSweep 3.5s infinite ease-in-out;
}

@keyframes btnShimmerSweep {
  0% { left: -100%; }
  35%, 100% { left: 160%; }
}

.btn-primary:hover {
  background-position: right center;
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 25px rgba(236, 72, 153, 0.4), 0 0 15px rgba(124, 58, 237, 0.5);
  color: #ffffff;
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.btn-secondary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.15);
}

.btn-large {
  padding: 14px 34px;
  font-size: 1.05rem;
  min-height: 50px;
}

/* Hero 区域 (二次元奇幻空间) */
.hero-section {
  padding: 72px 0 56px;
  text-align: center;
}

.hero-anime-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, rgba(79, 70, 229, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
  border: 1px solid rgba(199, 210, 254, 0.8);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 22px;
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.08);
}

.hero-anime-sparkle {
  color: var(--color-sakura-pink);
  animation: pulseRotate 2.5s infinite ease-in-out;
}

@keyframes pulseRotate {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.8; }
  50% { transform: scale(1.25) rotate(180deg); opacity: 1; }
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
  color: var(--color-text-main);
}

.hero-title-highlight {
  background: linear-gradient(135deg, #3730a3 0%, #4f46e5 40%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 680px;
  margin: 0 auto 32px;
  line-height: 1.68;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 24px;
}

.hero-trust {
  font-size: 0.875rem;
  color: var(--color-text-subtle);
  margin-bottom: 36px;
}

/* Hero 动态拓扑与发光轨迹图 */
.hero-visual-wrapper {
  max-width: 640px;
  margin: 0 auto;
  padding: 18px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(199, 210, 254, 0.8);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgba(79, 70, 229, 0.08), 0 0 20px rgba(236, 72, 153, 0.05);
  position: relative;
  overflow: hidden;
}

.hero-svg-diagram {
  width: 100%;
  height: auto;
  display: block;
}

/* 线路轨迹动画与发光粒子 */
.circuit-line {
  stroke-dasharray: 8, 8;
  animation: circuitFlow 20s linear infinite;
}

@keyframes circuitFlow {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: -200; }
}

.pulse-node {
  animation: nodeBreath 2.8s infinite ease-in-out;
}

@keyframes nodeBreath {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 2px rgba(79, 70, 229, 0.4)); }
  50% { transform: scale(1.08); filter: drop-shadow(0 0 8px rgba(236, 72, 153, 0.8)); }
}

/* 通用模块样式 */
.section-block {
  padding: 68px 0;
  border-top: 1px solid rgba(224, 231, 255, 0.7);
  position: relative;
}

.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 12px;
  text-align: center;
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-sakura-pink));
  margin: 12px auto 0;
}

.section-description {
  font-size: 1rem;
  color: var(--color-text-muted);
  text-align: center;
  max-width: 640px;
  margin: 16px auto 44px;
}

/* 卡片网格 */
.card-grid {
  display: grid;
  gap: 24px;
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* 二次元卡片 (呼吸边框与悬浮微动) */
.feature-card {
  background: var(--color-surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 4px 16px rgba(79, 70, 229, 0.03);
  position: relative;
  overflow: hidden;
}

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

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-primary-border);
  box-shadow: 0 12px 30px rgba(79, 70, 229, 0.12), 0 0 15px rgba(236, 72, 153, 0.08);
}

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

.feature-icon-box {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-sakura-light) 100%);
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--color-primary);
  border: 1px solid rgba(199, 210, 254, 0.6);
  transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon-box {
  transform: scale(1.1) rotate(4deg);
  color: var(--color-sakura-pink);
}

.feature-icon-box svg {
  width: 26px;
  height: 26px;
  stroke: currentColor;
  stroke-width: 2.2;
  fill: none;
}

.feature-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.68;
}

/* 链路优势对比表格 */
.advantage-table-wrapper {
  overflow-x: auto;
  background: var(--color-surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-top: 24px;
  box-shadow: 0 4px 18px rgba(79, 70, 229, 0.04);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.data-table th, .data-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  background-color: rgba(238, 242, 255, 0.7);
  font-weight: 700;
  color: var(--color-text-main);
}

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

/* 流媒体与 AI 服务徽章 */
.service-badges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.service-item-badge {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-main);
  transition: all 0.25s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.service-item-badge:hover {
  transform: translateY(-3px);
  border-color: var(--color-sakura-pink);
  box-shadow: 0 6px 16px rgba(236, 72, 153, 0.15);
}

.service-item-badge svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-primary);
  stroke-width: 2.2;
  fill: none;
  flex-shrink: 0;
  transition: stroke 0.2s ease;
}

.service-item-badge:hover svg {
  stroke: var(--color-sakura-pink);
}

/* 定价模块 (含呼吸灯光环) */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: var(--color-surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 26px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 4px 18px rgba(79, 70, 229, 0.04);
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 30px rgba(79, 70, 229, 0.12);
}

/* 热门推荐二次元呼吸光晕卡片 */
.pricing-card.is-popular {
  border: 2px solid var(--color-primary);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(245, 243, 255, 0.95) 100%);
  animation: breathingGlow 3s infinite ease-in-out;
}

@keyframes breathingGlow {
  0%, 100% {
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.18), 0 0 12px rgba(236, 72, 153, 0.15);
  }
  50% {
    box-shadow: 0 10px 32px rgba(79, 70, 229, 0.35), 0 0 24px rgba(236, 72, 153, 0.35);
  }
}

.popular-tag {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #4f46e5, #ec4899);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 3px 16px;
  border-radius: var(--radius-full);
  letter-spacing: 0.06em;
  box-shadow: 0 4px 12px rgba(236, 72, 153, 0.35);
}

.pricing-header {
  margin-bottom: 22px;
  text-align: center;
}

.pricing-name {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.pricing-target {
  font-size: 0.875rem;
  color: var(--color-text-subtle);
  margin-bottom: 18px;
}

.pricing-price {
  font-size: 2.45rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.pricing-unit {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-subtle);
}

.pricing-features {
  list-style: none;
  margin: 24px 0 32px;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  padding: 9px 0;
  border-bottom: 1px dashed var(--color-border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-features li::before {
  content: "✦";
  color: var(--color-sakura-pink);
  font-weight: 800;
  font-size: 0.85rem;
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-action {
  width: 100%;
}

/* 使用场景卡片 */
.scenario-card {
  background: var(--color-surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: all 0.25s ease;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.03);
}

.scenario-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary-border);
  box-shadow: 0 10px 24px rgba(79, 70, 229, 0.08);
}

.scenario-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.scenario-device {
  font-size: 0.875rem;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.scenario-device::before {
  content: "⚡";
  color: var(--color-sakura-pink);
}

.scenario-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.68;
}

/* FAQ 原生 Accordion (优雅交互) */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item-details {
  background: var(--color-surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  overflow: hidden;
}

.faq-item-details[open] {
  border-color: var(--color-primary-border);
  box-shadow: 0 4px 16px rgba(79, 70, 229, 0.08);
}

.faq-summary {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-main);
  padding: 18px 24px;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--touch-min);
  transition: color 0.15s ease;
}

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

.faq-summary:hover {
  color: var(--color-primary);
}

.faq-summary::after {
  content: "✦";
  font-size: 1rem;
  color: var(--color-sakura-pink);
  transition: transform 0.3s ease;
}

.faq-item-details[open] .faq-summary::after {
  transform: rotate(90deg);
}

.faq-answer-inner {
  padding: 0 24px 22px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.72;
}

/* Final CTA 梦幻呼应 */
.final-cta-section {
  padding: 72px 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(238, 242, 255, 0.95) 100%);
  border-top: 1px solid var(--color-border);
  text-align: center;
  position: relative;
}

.final-cta-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.final-cta-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 580px;
  margin: 0 auto 32px;
  line-height: 1.68;
}

/* 页脚 */
.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--color-border);
  padding: 48px 0 68px;
  font-size: 0.875rem;
  color: var(--color-text-subtle);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-bottom: 20px;
}

.footer-link {
  color: var(--color-text-muted);
  min-height: var(--touch-min);
  display: inline-flex;
  align-items: center;
  font-weight: 500;
}

.footer-link:hover {
  color: var(--color-primary);
}

.footer-affiliate-notice {
  font-weight: 700;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.footer-disclaimer {
  line-height: 1.68;
  margin-bottom: 16px;
}

.footer-copy {
  color: var(--color-text-subtle);
}

/* 移动端吸底 CTA 栏 */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border);
  padding: 10px 16px;
  box-shadow: 0 -4px 16px rgba(79, 70, 229, 0.08);
  z-index: 99;
  justify-content: space-between;
  align-items: center;
  transform: translateY(100%);
  transition: transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.mobile-sticky-bar.is-visible {
  transform: translateY(0);
}

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

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

/* ==============================================================
   二次元互动挂件：可拖动的「一翻云」悬浮桌面萌宠
   ============================================================== */
.mascot-float-widget {
  position: fixed;
  right: 24px;
  bottom: 80px;
  z-index: 98;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  filter: drop-shadow(0 8px 24px rgba(79, 70, 229, 0.25));
  transition: transform 0.15s ease;
}

.mascot-float-widget:active {
  cursor: grabbing;
  transform: scale(1.05);
}

/* 萌宠泡泡对话框 */
.mascot-speech-bubble {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--color-sakura-pink);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-main);
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(236, 72, 153, 0.18);
  margin-bottom: 8px;
  position: relative;
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: all 0.25s ease;
}

.mascot-speech-bubble.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mascot-speech-bubble::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  border-width: 6px 6px 0;
  border-style: solid;
  border-color: var(--color-sakura-pink) transparent transparent;
  display: block;
  width: 0;
}

.mascot-avatar-circle {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ffffff 0%, #eef2ff 100%);
  border: 2px solid #818cf8;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35), inset 0 0 10px rgba(236, 72, 153, 0.2);
  animation: mascotHoverBreath 3s infinite ease-in-out;
}

@keyframes mascotHoverBreath {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

.mascot-svg {
  width: 40px;
  height: 40px;
}

/* 动效控制小开关 */
.mascot-effect-toggle {
  margin-top: 6px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 2px 10px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-text-muted);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  transition: all 0.2s ease;
}

.mascot-effect-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* 文章正文样式 */
.article-header {
  padding: 48px 0 24px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 32px;
}

.article-title {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
  color: var(--color-text-main);
}

.article-meta {
  font-size: 0.875rem;
  color: var(--color-text-subtle);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.article-breadcrumb {
  margin-bottom: 16px;
  font-size: 0.875rem;
  color: var(--color-text-subtle);
}

.article-breadcrumb a {
  color: var(--color-text-subtle);
}

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

.article-content {
  max-width: 820px;
  margin: 0 auto;
  font-size: 1rem;
  line-height: 1.85;
  color: #1e293b;
}

.article-content p {
  margin-bottom: 22px;
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-top: 42px;
  margin-bottom: 18px;
  color: var(--color-text-main);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.article-content h2::after {
  content: "";
  display: block;
  width: 36px;
  height: 3px;
  background: var(--color-sakura-pink);
  position: absolute;
  bottom: -1px;
  left: 0;
  border-radius: 2px;
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-top: 26px;
  margin-bottom: 14px;
  color: var(--color-text-main);
}

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

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

.article-content blockquote {
  border-left: 4px solid var(--color-primary);
  background: rgba(238, 242, 255, 0.7);
  padding: 16px 20px;
  margin-bottom: 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text-muted);
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(238, 242, 255, 0.95) 0%, rgba(253, 242, 248, 0.95) 100%);
  border: 1px solid var(--color-primary-border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  margin: 44px 0;
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.08);
}

.article-cta-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.article-cta-text {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.article-internal-links {
  background: var(--color-surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
  margin-top: 44px;
}

.article-internal-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.article-internal-list {
  list-style: none;
  padding-left: 0;
}

.article-internal-list li {
  margin-bottom: 10px;
}

/* 独立常规页面 (About, Privacy, etc.) */
.page-container {
  max-width: 820px;
  margin: 40px auto 60px;
  background: var(--color-surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 42px;
  box-shadow: 0 10px 30px rgba(79, 70, 229, 0.05);
}

.page-title {
  font-size: 1.95rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--color-text-main);
}

.page-meta {
  font-size: 0.875rem;
  color: var(--color-text-subtle);
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.page-body h2 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-top: 30px;
  margin-bottom: 14px;
  color: var(--color-text-main);
}

.page-body p {
  margin-bottom: 18px;
  line-height: 1.75;
  color: var(--color-text-muted);
}

.page-body ul {
  margin-bottom: 18px;
  padding-left: 24px;
  color: var(--color-text-muted);
}

.page-body li {
  margin-bottom: 6px;
}

/* 指南卡片 SVG 缩略图 */
.guide-card-thumb {
  width: 100%;
  height: 120px;
  background: linear-gradient(135deg, var(--color-surface-subtle) 0%, rgba(253, 242, 248, 0.5) 100%);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  transition: transform 0.25s ease;
}

.feature-card:hover .guide-card-thumb {
  transform: scale(1.02);
}

.guide-card-thumb svg {
  width: 56px;
  height: 56px;
  stroke: var(--color-primary);
  stroke-width: 1.8;
  fill: none;
  filter: drop-shadow(0 2px 8px rgba(79, 70, 229, 0.2));
}

/* 响应式调整 */
@media (max-width: 900px) {
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .grid-3, .pricing-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: inline-flex;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: #ffffff;
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 16px 20px;
    gap: 12px;
    align-items: flex-start;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
  }
  .site-nav.is-open {
    display: flex;
  }
  .site-nav .nav-link {
    width: 100%;
    padding: 8px 0;
  }
  .hero-title {
    font-size: 1.85rem;
  }
  .hero-subtitle {
    font-size: 1rem;
  }
  .grid-2, .grid-4 {
    grid-template-columns: 1fr;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .mobile-sticky-bar {
    display: flex;
  }
  body {
    padding-bottom: 56px;
  }
  .page-container {
    padding: 24px 16px;
    margin: 20px 12px 40px;
  }
  .mascot-float-widget {
    right: 14px;
    bottom: 74px;
    transform: scale(0.9);
  }
}