/* ==========================================================================
   心宝工作室官网 — 烟雾与光影舞台风格设计系统
   ========================================================================== */

/* 核心变量定义 */
:root {
  /* 背景层级 */
  --bg-primary: #050508;
  --bg-secondary: rgba(10, 10, 16, 0.55);
  --bg-tertiary: rgba(20, 20, 32, 0.45);
  --bg-hover: rgba(30, 30, 48, 0.6);
  --bg-glass: rgba(12, 12, 20, 0.5);
  --bg-surface: rgba(15, 15, 25, 0.85);

  /* 文字颜色 */
  --text-primary: #f1f1f6;
  --text-secondary: #9090b0;
  --text-tertiary: #5d5d78;

  /* 主题色系 - 蓝绿色 Teal 与 靛蓝色 Indigo */
  --accent: #14b8a6;
  --accent-hover: #2dd4bf;
  --accent-dim: rgba(20, 184, 166, 0.12);
  --accent-glow: rgba(20, 184, 166, 0.3);
  --accent-secondary: #6366f1;
  --accent-sec-glow: rgba(99, 102, 241, 0.25);

  /* 语义化颜色 */
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;

  /* 边框高亮 */
  --border: rgba(255, 255, 255, 0.06);
  --border-highlight: rgba(255, 255, 255, 0.15); /* 顶部边缘发光，光源感 */

  /* 多层阴影系统 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4), 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5), 0 2px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 36px rgba(0, 0, 0, 0.6), 0 4px 12px rgba(0, 0, 0, 0.35);
  --shadow-xl: 0 20px 72px rgba(0, 0, 0, 0.8), 0 8px 24px rgba(0, 0, 0, 0.4);

  /* 字体定义 */
  --font-display: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', Arial, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', 'Courier New', monospace;

  /* 渐变插值空间支持变量 */
  --in-oklch: ;
}

@supports (linear-gradient(in oklch, white, black)) {
  :root {
    --in-oklch: in oklch;
  }
}

/* ==========================================================================
   全局重置与基本样式
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  background-color: var(--bg-primary);
  line-height: 1.6;
}

/* 隐藏 Canvas 溢出 */
#smoke-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  pointer-events: none;
}

/* ==========================================================================
   背景堆叠大面积雾带 (CSS 动画)
   ========================================================================== */
.fog-band-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.fog-band {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  mix-blend-mode: screen;
  opacity: 0.12; /* 大面积雾气保持低透明度，防止过度刺眼 */
}

/* 雾带 1：左上到右中，淡蓝绿 */
.fog-band-1 {
  top: -10%;
  left: -10%;
  width: 70vw;
  height: 60vh;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  animation: drift-slow-1 18s infinite alternate ease-in-out;
}

/* 雾带 2：右下到中左，靛紫 */
.fog-band-2 {
  bottom: -15%;
  right: -10%;
  width: 75vw;
  height: 65vh;
  background: radial-gradient(circle, var(--accent-secondary) 0%, transparent 70%);
  animation: drift-slow-2 22s infinite alternate ease-in-out;
}

/* 雾带 3：中上到中下，暗蓝 */
.fog-band-3 {
  top: 30%;
  left: 20%;
  width: 50vw;
  height: 50vh;
  background: radial-gradient(circle, rgba(14, 116, 144, 0.7) 0%, transparent 70%);
  animation: drift-slow-3 15s infinite alternate ease-in-out;
}

/* 雾带漂移动画 */
@keyframes drift-slow-1 {
  0% { transform: translate(0, 0) scale(1) rotate(0deg); }
  100% { transform: translate(12%, 10%) scale(1.15) rotate(15deg); }
}

@keyframes drift-slow-2 {
  0% { transform: translate(0, 0) scale(1.1) rotate(0deg); }
  100% { transform: translate(-10%, -12%) scale(0.9) rotate(-20deg); }
}

@keyframes drift-slow-3 {
  0% { transform: translate(-5%, 5%) scale(0.95); opacity: 0.08; }
  100% { transform: translate(8%, -8%) scale(1.1); opacity: 0.16; }
}

/* 自定义滚动条 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* ==========================================================================
   排版与基础样式
   ========================================================================== */
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0;
  color: var(--text-primary);
  line-height: 1.25;
}

p {
  color: var(--text-secondary);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.text-center {
  text-align: center;
}

.gradient-text {
  background: linear-gradient(135deg var(--in-oklch), #ffffff 20%, var(--accent) 60%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   毛玻璃质感核心（Glassmorphism）
   ========================================================================== */
.glass-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border: 1px solid var(--border);
  border-top-color: var(--border-highlight); /* 光源模拟：顶部高亮 */
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   组件与按钮设计
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 28px;
  font-size: 1.05rem;
  border-radius: 10px;
}

/* 主按钮：蓝绿渐变霓虹 */
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #0f766e);
  color: #030712;
  box-shadow: 0 0 16px rgba(20, 184, 166, 0.25);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 24px rgba(20, 184, 166, 0.4);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(2px) scale(0.98);
}

/* 次按钮：毛玻璃边框 */
.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  border: 1px solid var(--border-highlight);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent);
  box-shadow: 0 0 16px rgba(20, 184, 166, 0.15);
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: translateY(2px) scale(0.98);
}

/* 极小徽章 */
.badge-accent {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(20, 184, 166, 0.25);
  padding: 4px 10px;
  border-radius: 9999px;
  margin-bottom: 16px;
  box-shadow: 0 0 10px rgba(20, 184, 166, 0.1);
}

/* ==========================================================================
   顶部导航栏样式
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 0 8px rgba(20, 184, 166, 0.3);
  transition: transform 0.2s ease;
}

.logo-area:hover .logo-img {
  transform: scale(1.08) rotate(2deg);
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0;
  background: linear-gradient(to right, #fff, var(--text-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width 0.25s ease;
  box-shadow: 0 0 8px var(--accent);
}

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

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

/* ==========================================================================
   Hero 主视觉区域
   ========================================================================== */
.hero-section {
  padding-top: 160px;
  padding-bottom: 100px;
  position: relative;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 48px;
}

.hero-text-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-title {
  font-size: 3.3rem;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: 0;
  text-shadow: 0 0 40px rgba(255, 255, 255, 0.05), 0 0 20px rgba(20, 184, 166, 0.15);
}

.hero-subtitle {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* 微信 ID 一键复制挂件 */
.activation-code-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s ease;
}

.activation-code-wrapper:hover {
  border-color: var(--accent);
  background: rgba(20, 184, 166, 0.04);
  box-shadow: 0 0 15px rgba(20, 184, 166, 0.1);
  transform: translateY(-1px);
}

.activation-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.activation-code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0;
}

.copy-btn {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: color 0.15s ease;
}

.activation-code-wrapper:hover .copy-btn {
  color: var(--accent-hover);
}

.icon-sm {
  width: 14px;
  height: 14px;
}

.icon-inline {
  width: 16px;
  height: 16px;
  vertical-align: text-bottom;
}

/* 浮动 Mockup 框架 */
.hero-mockup-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.mockup-frame {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: perspective(1000px) rotateY(-5deg) rotateX(3deg);
  transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  background: rgba(16, 16, 24, 0.5);
}

.hero-mockup-wrapper:hover .mockup-frame {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg) translateY(-4px);
}

.mockup-header {
  height: 36px;
  background: rgba(8, 8, 12, 0.7);
  display: flex;
  align-items: center;
  padding: 0 16px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.mockup-dots {
  display: flex;
  gap: 6px;
}

.mockup-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

.mockup-dots .dot.red { background: #ef4444; opacity: 0.65; }
.mockup-dots .dot.yellow { background: #f59e0b; opacity: 0.65; }
.mockup-dots .dot.green { background: #22c55e; opacity: 0.65; }

.mockup-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  pointer-events: none;
  white-space: nowrap;
  max-width: 60%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mockup-body {
  position: relative;
  background: #202020;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.mockup-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity 0.3s ease;
}

.mockup-body picture,
.display-body picture {
  display: block;
  width: 100%;
  height: 100%;
}

/* 装饰性高光 */
.mockup-glow {
  position: absolute;
  top: 10%;
  left: 10%;
  width: 80%;
  height: 80%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
  filter: blur(40px);
}

/* ==========================================================================
   公用分区头部样式
   ========================================================================== */
.section-header {
  margin-bottom: 64px;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 16px;
  text-shadow: 0 0 30px rgba(255, 255, 255, 0.05);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto;
}

/* ==========================================================================
   成果一：产品特性交互模块
   ========================================================================== */
.features-section {
  padding: 100px 0;
  position: relative;
}

.features-interactive-wrapper {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: center;
}

.features-tabs-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* 功能选项卡按钮 */
.feature-tab {
  background: none;
  border: none;
  padding: 14px 18px;
  border-radius: 12px;
  text-align: left;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-icon-wrapper {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-highlight);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
  flex-shrink: 0;
}

.tab-icon-wrapper svg {
  width: 20px;
  height: 20px;
}

.tab-text-wrapper h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
  transition: color 0.25s ease;
}

.tab-text-wrapper p {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  line-height: 1.4;
  transition: color 0.25s ease;
}

/* Hover 提亮 */
.feature-tab:hover {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.feature-tab:hover .tab-icon-wrapper {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.3);
}

.feature-tab:hover .tab-text-wrapper h3 {
  color: var(--text-primary);
}

.feature-tab:hover .tab-text-wrapper p {
  color: var(--text-secondary);
}

/* Active 激活状态 */
.feature-tab.active {
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(20, 184, 166, 0.12), var(--shadow-md);
  transform: scale(1.02);
}

.feature-tab.active .tab-icon-wrapper {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 12px rgba(20, 184, 166, 0.2);
}

.feature-tab.active .tab-text-wrapper h3 {
  color: var(--text-primary);
}

.feature-tab.active .tab-text-wrapper p {
  color: var(--text-secondary);
}

/* 点击下沉 */
.feature-tab:active {
  transform: scale(0.98) translateY(1px);
}

/* 右侧大截图展示容器 */
.features-display-container {
  position: relative;
  width: 100%;
}

.display-mockup-frame {
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  background: rgba(16, 16, 24, 0.5);
  border: 1px solid var(--border);
  border-top-color: var(--border-highlight);
}

.display-body {
  background: #020205;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}

.display-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), opacity 0.3s ease;
}

.display-glow {
  position: absolute;
  top: 15%;
  left: 15%;
  width: 70%;
  height: 70%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
  filter: blur(50px);
  transition: background 0.4s ease;
}

/* ==========================================================================
   AI 检索摘要
   ========================================================================== */
.ai-summary-section {
  padding: 80px 0 40px;
  position: relative;
}

.ai-summary-panel {
  border-radius: 16px;
  padding: 44px 40px;
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.06), rgba(99, 102, 241, 0.05)),
              var(--bg-glass);
}

.ai-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.ai-summary-item {
  min-width: 0;
}

.ai-summary-item h3 {
  font-size: 1rem;
  margin-bottom: 10px;
  color: var(--accent);
}

.ai-summary-item p {
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ==========================================================================
   成果二：ComfyUI 生产级落地工作流
   ========================================================================== */
.workflows-section {
  padding: 100px 0;
  position: relative;
}

.workflows-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.workflow-card {
  border-radius: 16px;
  padding: 36px 28px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), border-color 0.3s ease;
}

.workflow-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-xl);
}

.workflow-icon-box {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--accent-dim);
  border: 1px solid rgba(20, 184, 166, 0.25);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  box-shadow: 0 0 12px rgba(20, 184, 166, 0.15);
  transition: all 0.3s ease;
}

.workflow-card:hover .workflow-icon-box {
  background: var(--accent);
  color: #030712;
  box-shadow: 0 0 16px var(--accent);
}

.wf-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.wf-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: auto; /* 让 badge 沉到底部 */
  padding-bottom: 20px;
}

.wf-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: rgba(20, 184, 166, 0.06);
  border: 1px solid rgba(20, 184, 166, 0.15);
  padding: 4px 10px;
  border-radius: 6px;
}

/* ==========================================================================
   B端合作与采购联系区域
   ========================================================================== */
.download-section {
  padding: 100px 0;
  position: relative;
}

.download-card {
  border-radius: 24px;
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-highlight);
  background: radial-gradient(circle at top right, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
              radial-gradient(circle at bottom left, rgba(20, 184, 166, 0.06) 0%, transparent 40%),
              var(--bg-glass);
}

.download-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0;
  color: #fff;
  background: var(--accent-secondary);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 6px 14px;
  border-radius: 9999px;
  margin-bottom: 24px;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.3);
}

.download-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
  background: linear-gradient(to bottom, #fff 40%, var(--text-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.download-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

/* 微信联系卡片组件 */
.contact-box {
  width: 100%;
  max-width: 540px;
  margin: 0 auto 40px;
  border-radius: 14px;
  padding: 16px 24px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.01);
}

.contact-info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.contact-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.text-green {
  color: #22c55e !important;
  filter: drop-shadow(0 0 6px rgba(34, 197, 94, 0.4));
}

.contact-info-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  flex-grow: 1;
}

.contact-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-bottom: 2px;
}

.contact-value {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0;
}

.download-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-tertiary);
  flex-wrap: wrap;
}

.download-info .divider {
  opacity: 0.3;
}

/* ==========================================================================
   常见问题
   ========================================================================== */
.faq-section {
  padding: 80px 0 40px;
  position: relative;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.faq-item {
  border-radius: 12px;
  padding: 28px;
}

.faq-item h3 {
  font-size: 1.05rem;
  margin-bottom: 12px;
}

.faq-item p {
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ==========================================================================
   页脚样式与 ICP 备案
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
  background: rgba(3, 3, 6, 0.8);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-container {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-brand .logo-text {
  font-size: 1.1rem;
}

.footer-brand p {
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

.footer-info {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.icp-info {
  display: flex;
  align-items: center;
  justify-content: center;
}

.icp-info a {
  color: var(--text-tertiary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

.icon-inline {
  width: 14px;
  height: 14px;
}

/* ==========================================================================
   Toast 复制成功浮层
   ========================================================================== */
.toast-message {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  border-radius: 10px;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
  background: rgba(10, 20, 20, 0.8);
  border-color: var(--accent);
  box-shadow: 0 8px 32px rgba(20, 184, 166, 0.25);
}

.toast-message.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast-message span {
  font-size: 0.9rem;
  font-weight: 500;
  color: #fff;
}

.success-icon {
  color: var(--accent);
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   响应式断点适配
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 64px;
  }
  
  .hero-text-content {
    align-items: center;
  }
  
  .hero-subtitle {
    max-width: 100%;
  }

  .features-interactive-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .features-display-container {
    order: -1;
  }

  .ai-summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .workflows-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .footer-container {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .footer-info {
    text-align: center;
  }

  .icp-info {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.6rem;
  }

  .ai-summary-panel {
    padding: 32px 24px;
  }

  .ai-summary-grid, .faq-grid, .workflows-grid {
    grid-template-columns: 1fr;
  }

  .download-card {
    padding: 40px 24px;
  }

  .nav-menu {
    display: none; /* 简化移动端导航 */
  }

  .contact-info-row {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .contact-info-text {
    align-items: center;
    margin-bottom: 8px;
  }
}

/* 支持减弱动效策略 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-delay: 0s !important;
    animation-duration: 0.1s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.1s !important;
    scroll-behavior: auto !important;
  }
  .fog-band {
    animation: none !important;
  }

  #smoke-canvas {
    display: none;
  }
}