/* ==========================================================================
   趣集社圈子官网 - 前端样式表
   纯 CSS 复刻原 React + Tailwind 项目设计
   所有颜色通过 CSS 变量定义,后台可动态修改配色(实时生效)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 字体引入
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

/* --------------------------------------------------------------------------
   2. 主题变量(:root)
   后台可通过覆盖这些变量实现动态配色
   -------------------------------------------------------------------------- */
:root {
  /* 主色 */
  --color-primary: #67C23A;
  --color-primary-light: #85CE61;
  --color-primary-dark: #4CAF50;

  /* 辅色 */
  --color-secondary: #F5A623;
  --color-secondary-light: #FFB74D;
  --color-secondary-dark: #F57C00;

  /* 强调色 */
  --color-accent: #FF6B6B;
  --color-accent-light: #FF8787;
  --color-accent-dark: #E53935;

  /* 信息色 */
  --color-info: #409EFF;
  --color-info-light: #66B1FF;
  --color-info-dark: #337ECC;

  /* 紫色 */
  --color-purple: #7C3AED;
  --color-purple-light: #8B5CF6;
  --color-purple-dark: #6D28D9;

  /* 品牌色阶(组件细节使用) */
  --color-brand-50: #E8F5E9;
  --color-brand-100: #DCEDC8;
  --color-brand-200: #C5E1A5;
  --color-brand-300: #AED581;
  --color-brand-400: #9CCC65;
  --color-brand-500: #67C23A;
  --color-brand-600: #5CB334;
  --color-brand-700: #4A9129;
  --color-brand-800: #386F1F;
  --color-brand-900: #1a2e1a; /* 页脚深色 */

  /* 文本色 */
  --color-text-primary: #303133;
  --color-text-secondary: #606266;
  --color-text-hint: #909399;

  /* 背景色 */
  --color-bg-page: #F0F9EB;
  --color-bg-card: #FFFFFF;
  --color-bg-grey: #F5F7FA;

  /* 边框色 */
  --color-border: #EBEEF5;
  --color-border-light: #F2F6FC;

  /* 阴影色(基于主色) */
  --shadow-primary-sm: 0 4px 12px rgba(103, 194, 58, 0.08);
  --shadow-primary-md: 0 8px 24px rgba(103, 194, 58, 0.12);
  --shadow-primary-lg: 0 16px 40px rgba(103, 194, 58, 0.18);

  /* 过渡曲线 */
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   3. 全局基础样式
   -------------------------------------------------------------------------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

*::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

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

body {
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 400;
  line-height: 1.6;
  background-color: var(--color-bg-page);
  color: var(--color-text-primary);
  overflow-x: hidden;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: inherit;
}

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

ul {
  list-style: none;
}

/* --------------------------------------------------------------------------
   4. Tailwind 自定义类复刻
   -------------------------------------------------------------------------- */

/* 毛玻璃 */
.glass {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

/* 渐变文字 */
.gradient-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 渐变背景 - 主色 */
.gradient-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

/* 渐变背景 - 暖色 */
.gradient-warm {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
}

/* 渐变背景 - 冷色 */
.gradient-cool {
  background: linear-gradient(135deg, var(--color-info) 0%, var(--color-primary) 100%);
}

/* 网格背景 */
.grid-pattern {
  background-image:
    linear-gradient(rgba(103, 194, 58, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(103, 194, 58, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* 渐变网格背景 */
.mesh-bg {
  background-color: var(--color-bg-page);
  background-image:
    radial-gradient(at 20% 20%, rgba(103, 194, 58, 0.14) 0px, transparent 50%),
    radial-gradient(at 80% 0%, rgba(133, 206, 97, 0.12) 0px, transparent 50%),
    radial-gradient(at 0% 80%, rgba(103, 194, 58, 0.08) 0px, transparent 50%),
    radial-gradient(at 80% 80%, rgba(133, 206, 97, 0.06) 0px, transparent 50%);
}

/* --------------------------------------------------------------------------
   5. 动画 keyframes
   -------------------------------------------------------------------------- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

@keyframes wave {
  0%, 100% { transform: translateX(0) scaleX(1); }
  50% { transform: translateX(-25%) scaleX(1.5); }
}

@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes pulse-soft {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.1); opacity: 0.1; }
}

@keyframes float-rotate {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(3deg); }
}

@keyframes float-rotate-reverse {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(20px) rotate(-3deg); }
}

@keyframes float-scale {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-15px) scale(1.05); }
}

@keyframes badge-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* 动画工具类 */
.animate-float { animation: float 6s ease-in-out infinite; }
.animate-float-slow { animation: float-slow 8s ease-in-out infinite; }
.animate-wave { animation: wave 8s ease-in-out infinite; }
.animate-gradient { background-size: 200% 200%; animation: gradient-shift 8s ease infinite; }
.animate-pulse-soft { animation: pulse-soft 3s ease-in-out infinite; }
.animate-badge-float { animation: badge-float 3s ease-in-out infinite; }

/* --------------------------------------------------------------------------
   6. 通用容器与排版
   -------------------------------------------------------------------------- */
.container-x {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-md {
  max-width: 1152px;
}

.container-sm {
  max-width: 1024px;
}

.container-xs {
  max-width: 960px;
}

/* 通用段落徽章(板块小标签) */
.section-badge {
  display: inline-block;
  padding: 0.25rem 1rem;
  border-radius: 9999px;
  background: var(--color-brand-100);
  color: var(--color-primary-dark);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.section-badge.warm {
  background: rgba(245, 166, 35, 0.2);
  color: var(--color-secondary-dark);
}

.section-title {
  font-size: 1.875rem;
  font-weight: 900;
  color: var(--color-text-primary);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.section-subtitle {
  color: var(--color-text-hint);
  max-width: 42rem;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

/* --------------------------------------------------------------------------
   7. 导航栏 .navbar
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: all 0.3s var(--ease-smooth);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 4px 20px rgba(103, 194, 58, 0.1);
}

.navbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-logo {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.75rem;
  object-fit: contain;
  box-shadow: 0 4px 12px rgba(103, 194, 58, 0.3);
  transition: transform 0.3s var(--ease-smooth);
}

.navbar-brand:hover .navbar-logo {
  transform: scale(1.1);
}

.navbar-brand-name {
  font-weight: 700;
  font-size: 1.125rem;
  color: #ffffff;
  transition: color 0.3s var(--ease-smooth);
}

.navbar.scrolled .navbar-brand-name {
  color: var(--color-text-primary);
}

.navbar-links {
  display: none;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  position: relative;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.3s var(--ease-smooth);
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -0.25rem;
  left: 0;
  width: 0;
  height: 0.125rem;
  background: var(--color-primary);
  transition: width 0.3s var(--ease-smooth);
}

.nav-link:hover {
  color: #ffffff;
}

.navbar.scrolled .nav-link {
  color: var(--color-text-secondary);
}

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

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

.nav-cta {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(103, 194, 58, 0.3);
  transition: all 0.3s var(--ease-smooth);
}

.nav-cta:hover {
  box-shadow: 0 8px 20px rgba(103, 194, 58, 0.4);
  transform: scale(1.05);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  background: transparent;
  border: none;
  cursor: pointer;
  color: #ffffff;
  transition: color 0.3s var(--ease-smooth);
}

.navbar.scrolled .nav-toggle {
  color: var(--color-text-primary);
}

.nav-toggle svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* 移动端菜单 */
.mobile-menu {
  display: none;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--color-border-light);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.mobile-menu.open {
  display: block;
}

.mobile-menu-inner {
  padding: 1rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.mobile-menu-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 0.5rem 0;
  transition: color 0.3s var(--ease-smooth);
}

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

.mobile-menu .nav-cta {
  margin-top: 0.5rem;
  padding: 0.625rem 1.25rem;
  text-align: center;
}

/* --------------------------------------------------------------------------
   8. Hero 区域 .hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 4rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
}

.hero-bg-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom,
    rgba(0, 0, 0, 0.2) 0%,
    transparent 50%,
    rgba(0, 0, 0, 0.4) 100%);
}

/* Banner 轮播 */
.hero-slider {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide .hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-slide-link {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-slider-dots {
  position: absolute;
  bottom: 140px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 5;
}

.hero-slider-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-slider-dots span.active {
  background: #fff;
  width: 30px;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.hero-slider-dots span:hover {
  background: rgba(255, 255, 255, 0.7);
}

@media (max-width: 768px) {
  .hero-slider-dots {
    bottom: 100px;
    gap: 8px;
  }
  .hero-slider-dots span {
    width: 8px;
    height: 8px;
  }
  .hero-slider-dots span.active {
    width: 24px;
  }
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.2;
  pointer-events: none;
}

/* 装饰光晕 */
.hero-blob {
  position: absolute;
  border-radius: 9999px;
  filter: blur(64px);
  pointer-events: none;
  z-index: 1;
}

.hero-blob.one {
  top: 5rem;
  left: 2.5rem;
  width: 18rem;
  height: 18rem;
  background: rgba(103, 194, 58, 0.1);
  animation: float 6s ease-in-out infinite;
}

.hero-blob.two {
  bottom: 5rem;
  right: 2.5rem;
  width: 24rem;
  height: 24rem;
  background: rgba(133, 206, 97, 0.1);
  animation: float-slow 8s ease-in-out infinite;
}

.hero-blob.three {
  top: 50%;
  left: 33%;
  width: 15rem;
  height: 15rem;
  background: rgba(64, 158, 255, 0.05);
  animation: float 6s ease-in-out infinite;
}

/* 浮动装饰图标 */
.hero-floating {
  position: absolute;
  z-index: 2;
  pointer-events: none;
}

.hero-floating img {
  object-fit: contain;
  filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.3));
}

.hero-floating.fatie {
  top: 6rem;
  right: 12%;
  width: 6rem;
  height: 6rem;
  animation: float-rotate 5s ease-in-out infinite;
}

.hero-floating.toupiao {
  bottom: 10rem;
  left: 10%;
  width: 5rem;
  height: 5rem;
  animation: float-rotate-reverse 6s ease-in-out infinite;
}

.hero-floating.fanbo {
  top: 10rem;
  left: 6%;
  width: 5rem;
  height: 5rem;
  animation: float-scale 4s ease-in-out infinite;
}

.hero-floating.hot {
  bottom: 8rem;
  right: 6%;
  width: 5rem;
  height: 5rem;
  animation: float-rotate 5.5s ease-in-out infinite;
}

/* Hero 内容 */
.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 0 1.5rem;
  max-width: 48rem;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  margin-bottom: 2rem;
}

.hero-badge svg,
.hero-badge .badge-icon {
  width: 0.875rem;
  height: 0.875rem;
  color: #ffffff;
}

.hero-badge span {
  font-size: 0.75rem;
  font-weight: 500;
  color: #ffffff;
}

.hero-logo {
  width: 6rem;
  height: 6rem;
  margin: 0 auto 1.5rem;
  object-fit: contain;
  filter: drop-shadow(0 25px 25px rgba(0, 0, 0, 0.25));
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 900;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
  color: #ffffff;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.3));
  line-height: 1.1;
}

.hero-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 300;
  margin-bottom: 1rem;
}

.hero-desc-full {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 32rem;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
  transition: all 0.3s var(--ease-smooth);
  cursor: pointer;
  border: none;
}

.hero-btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff;
  box-shadow: 0 20px 25px rgba(0, 0, 0, 0.2);
}

.hero-btn-primary:hover {
  box-shadow: 0 25px 35px rgba(0, 0, 0, 0.3);
  transform: scale(1.05);
}

.hero-btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: #ffffff;
}

.hero-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.3);
}

.hero-btn svg {
  width: 1.125rem;
  height: 1.125rem;
}

/* Hero 底部波浪 */
.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 3;
  line-height: 0;
}

.hero-wave svg {
  width: 100%;
  height: auto;
}

/* --------------------------------------------------------------------------
   9. 统计 .stats
   -------------------------------------------------------------------------- */
.stats-section {
  position: relative;
  padding: 5rem 1.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 72rem;
  margin: 0 auto;
}

.stat-card {
  position: relative;
  background: var(--color-bg-card);
  border-radius: 1.5rem;
  padding: 1.5rem;
  box-shadow: 0 4px 12px rgba(103, 194, 58, 0.05);
  border: 1px solid rgba(220, 237, 200, 0.5);
  transition: all 0.3s var(--ease-smooth);
}

.stat-card:hover {
  box-shadow: 0 12px 24px rgba(103, 194, 58, 0.1);
  transform: translateY(-4px);
}

.stat-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 1rem;
  background: var(--color-brand-50);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--color-primary);
  transition: all 0.3s var(--ease-smooth);
}

.stat-card:hover .stat-icon {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff;
}

.stat-icon svg {
  width: 1.375rem;
  height: 1.375rem;
}

.stat-value {
  font-size: 2.25rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.stat-suffix {
  font-size: 1.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-hint);
  margin-top: 0.5rem;
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   10. 核心功能 .features
   -------------------------------------------------------------------------- */
.features-section {
  position: relative;
  padding: 6rem 1.5rem;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 80rem;
  margin: 0 auto;
}

.feature-card {
  position: relative;
  background: var(--color-bg-card);
  border-radius: 1.5rem;
  padding: 2rem;
  box-shadow: 0 4px 12px rgba(103, 194, 58, 0.05);
  border: 1px solid rgba(220, 237, 200, 0.5);
  overflow: hidden;
  transition: all 0.3s var(--ease-smooth);
}

.feature-card:hover {
  box-shadow: 0 25px 50px rgba(103, 194, 58, 0.15);
  transform: translateY(-8px);
}

.feature-card-deco {
  position: absolute;
  top: -2rem;
  right: -2rem;
  width: 8rem;
  height: 8rem;
  border-radius: 9999px;
  opacity: 0.05;
  transition: opacity 0.3s var(--ease-smooth);
}

.feature-card:hover .feature-card-deco {
  opacity: 0.1;
}

/* 4 种功能配色 */
.feature-card-deco.primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.feature-card-deco.warm {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
}

.feature-card-deco.cool {
  background: linear-gradient(135deg, var(--color-info) 0%, var(--color-primary) 100%);
}

.feature-card-deco.green {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary-light) 100%);
}

.feature-img-wrap {
  position: relative;
  height: 5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.feature-img {
  height: 5rem;
  object-fit: contain;
  filter: drop-shadow(0 10px 15px rgba(0, 0, 0, 0.1));
  transition: transform 0.3s var(--ease-smooth);
}

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

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
  text-align: center;
}

.feature-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  text-align: center;
}

.feature-card-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 0.25rem;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-smooth);
}

.feature-card:hover .feature-card-bar {
  transform: scaleX(1);
}

.feature-card-bar.primary {
  background: linear-gradient(to right, var(--color-primary), var(--color-primary-light));
}

.feature-card-bar.warm {
  background: linear-gradient(to right, var(--color-secondary), var(--color-secondary-dark));
}

.feature-card-bar.cool {
  background: linear-gradient(to right, var(--color-info), var(--color-primary));
}

.feature-card-bar.green {
  background: linear-gradient(to right, var(--color-primary-dark), var(--color-primary-light));
}

/* --------------------------------------------------------------------------
   11. 功能详解 .detail
   -------------------------------------------------------------------------- */
.detail-section {
  position: relative;
  padding: 6rem 1.5rem;
  background: linear-gradient(to bottom,
    transparent 0%,
    rgba(232, 245, 233, 0.5) 50%,
    transparent 100%);
}

.detail-list {
  display: flex;
  flex-direction: column;
  gap: 6rem;
  max-width: 80rem;
  margin: 0 auto;
}

.detail-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
}

.detail-content {
  flex: 1;
  width: 100%;
}

.detail-header {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.detail-icon-img {
  width: 3rem;
  height: 3rem;
  object-fit: contain;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.detail-subtitle {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
}

.detail-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 1rem;
  line-height: 1.3;
}

.detail-desc {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.detail-highlights {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.detail-highlight {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(220, 237, 200, 0.5);
  transition: all 0.3s var(--ease-smooth);
}

.detail-highlight:hover {
  background: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.detail-highlight-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  background: var(--color-brand-50);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}

.detail-highlight-icon svg {
  width: 1rem;
  height: 1rem;
}

.detail-highlight-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.detail-visual {
  flex: 1;
  width: 100%;
}

/* --------------------------------------------------------------------------
   12. 功能可视化 .visual (FeatureVisual)
   -------------------------------------------------------------------------- */
.visual-wrap {
  position: relative;
}

.visual-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(103, 194, 58, 0.05) 0%, rgba(133, 206, 97, 0.05) 100%);
  border-radius: 1.5rem;
  filter: blur(16px);
}

.visual-card {
  position: relative;
  background: var(--color-bg-card);
  border-radius: 1.5rem;
  padding: 1.5rem;
  box-shadow: 0 12px 24px rgba(103, 194, 58, 0.1);
  border: 1px solid rgba(220, 237, 200, 0.5);
  overflow: hidden;
}

.visual-card-grid {
  position: absolute;
  inset: 0;
  opacity: 0.3;
  pointer-events: none;
}

.visual-card-body {
  position: relative;
}

.visual-badge {
  position: absolute;
  top: -0.75rem;
  right: -0.75rem;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 5;
  animation: badge-float 3s ease-in-out infinite;
}

/* 圈子可视化 */
.visual-circle-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.visual-circle-item {
  padding: 1rem;
  border-radius: 1rem;
  background: var(--color-bg-grey);
  border: 1px solid var(--color-border-light);
  transition: all 0.3s var(--ease-smooth);
}

.visual-circle-item:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.visual-circle-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.5rem;
  color: #ffffff;
}

.visual-circle-icon.warm {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
}

.visual-circle-icon.cool {
  background: linear-gradient(135deg, var(--color-info) 0%, var(--color-info-dark) 100%);
}

.visual-circle-icon.purple {
  background: linear-gradient(135deg, var(--color-purple) 0%, var(--color-purple-dark) 100%);
}

.visual-circle-icon.primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.visual-circle-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.visual-circle-icon-img {
  overflow: hidden;
  background: var(--color-bg-grey);
  padding: 0;
}

.visual-circle-icon-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.visual-circle-name {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text-primary);
}

.visual-circle-members {
  font-size: 0.75rem;
  color: var(--color-text-hint);
}

/* 发布可视化 */
.visual-publish-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.visual-publish-card {
  padding: 1rem;
  border-radius: 1rem;
  background: var(--color-bg-grey);
  border: 1px solid var(--color-border-light);
}

.visual-publish-user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.visual-publish-avatar {
  width: 2rem;
  height: 2rem;
  border-radius: 9999px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  overflow: hidden;
  flex-shrink: 0;
}

.visual-publish-avatar-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.visual-publish-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.visual-publish-meta {
  font-size: 0.625rem;
  color: var(--color-text-hint);
}

.visual-publish-text {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
}

.visual-publish-images {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.375rem;
  margin-bottom: 0.75rem;
}

.visual-publish-images img {
  aspect-ratio: 1 / 1;
  border-radius: 0.5rem;
  object-fit: cover;
  width: 100%;
  transition: transform 0.3s var(--ease-smooth);
}

.visual-publish-images img:hover {
  transform: scale(1.05);
}

.visual-publish-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.visual-publish-action {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--color-text-hint);
}

.visual-publish-action svg {
  width: 0.875rem;
  height: 0.875rem;
}

.visual-publish-action.like {
  color: var(--color-accent);
}

/* 投票条 */
.visual-poll-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.visual-poll-title svg {
  width: 0.875rem;
  height: 0.875rem;
  color: var(--color-primary);
}

.visual-poll-list {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.visual-poll-bar {
  position: relative;
  width: 100%;
  height: 1.5rem;
  border-radius: 0.5rem;
  background: var(--color-brand-100);
  overflow: hidden;
}

.visual-poll-fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  border-radius: 0.5rem;
}

.visual-poll-fill.primary {
  background: rgba(103, 194, 58, 0.3);
}

.visual-poll-fill.warm {
  background: rgba(245, 166, 35, 0.3);
}

.visual-poll-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  padding: 0 0.5rem;
  font-size: 0.625rem;
  color: var(--color-text-secondary);
}

/* 探店可视化 */
.visual-explore-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.visual-explore-search {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem;
  border-radius: 0.75rem;
  background: var(--color-bg-grey);
  border: 1px solid var(--color-border-light);
}

.visual-explore-search svg {
  width: 0.875rem;
  height: 0.875rem;
  color: var(--color-text-hint);
}

.visual-explore-search span {
  font-size: 0.75rem;
  color: var(--color-text-hint);
}

.visual-explore-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: 1rem;
  background: var(--color-bg-grey);
  border: 1px solid var(--color-border-light);
  transition: all 0.3s var(--ease-smooth);
}

.visual-explore-item:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.visual-explore-img {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  object-fit: cover;
  flex-shrink: 0;
}

.visual-explore-info {
  flex: 1;
  min-width: 0;
}

.visual-explore-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.visual-explore-meta {
  font-size: 0.75rem;
  color: var(--color-text-hint);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.visual-explore-meta svg {
  width: 0.625rem;
  height: 0.625rem;
  color: var(--color-secondary);
}

.visual-explore-tag {
  padding: 0.25rem 0.5rem;
  border-radius: 0.5rem;
  background: rgba(103, 194, 58, 0.1);
  color: var(--color-primary);
  font-size: 0.625rem;
  font-weight: 500;
}

/* 消息可视化 */
.visual-message-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.visual-message-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: 1rem;
  background: var(--color-bg-grey);
  border: 1px solid var(--color-border-light);
}

.visual-message-icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 9999px;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  flex-shrink: 0;
}

.visual-message-icon svg {
  width: 1rem;
  height: 1rem;
}

.visual-message-icon-img {
  overflow: hidden;
  padding: 0;
}

.visual-message-icon-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.visual-message-icon.info { color: var(--color-info); }
.visual-message-icon.accent { color: var(--color-accent); }
.visual-message-icon.secondary { color: var(--color-secondary); }

.visual-message-body {
  flex: 1;
  min-width: 0;
}

.visual-message-text {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.visual-message-time {
  font-size: 0.625rem;
  color: var(--color-text-hint);
  margin-top: 0.125rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.visual-message-time svg {
  width: 0.5rem;
  height: 0.5rem;
}

/* 聊天气泡 */
.visual-chat {
  display: flex;
  margin-top: 0.75rem;
}

.visual-chat.right {
  justify-content: flex-end;
}

.visual-chat.left {
  justify-content: flex-start;
}

.visual-chat-bubble {
  max-width: 70%;
  padding: 0.5rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  line-height: 1.5;
}

.visual-chat-bubble.primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff;
  border-bottom-right-radius: 0.25rem;
}

.visual-chat-bubble.grey {
  background: var(--color-bg-grey);
  color: var(--color-text-secondary);
  border-bottom-left-radius: 0.25rem;
}

/* --------------------------------------------------------------------------
   13. 使用流程 .steps
   -------------------------------------------------------------------------- */
.steps-section {
  position: relative;
  padding: 6rem 1.5rem;
}

.steps-container {
  max-width: 72rem;
  margin: 0 auto;
}

.steps-wrap {
  position: relative;
}

.steps-line {
  display: none;
  position: absolute;
  top: 3rem;
  left: 12.5%;
  right: 12.5%;
  height: 0.125rem;
  background: linear-gradient(to right,
    var(--color-brand-200) 0%,
    var(--color-primary) 50%,
    var(--color-brand-200) 100%);
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.step-item {
  position: relative;
  text-align: center;
}

.step-circle-wrap {
  position: relative;
  display: inline-block;
  margin-bottom: 1.5rem;
}

.step-circle {
  position: relative;
  width: 6rem;
  height: 6rem;
  border-radius: 9999px;
  background: var(--color-bg-card);
  border: 2px solid var(--color-brand-200);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(103, 194, 58, 0.1);
  z-index: 10;
}

.step-img {
  width: 3.5rem;
  height: 3.5rem;
  object-fit: contain;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.step-pulse {
  position: absolute;
  inset: 0;
  border-radius: 9999px;
  background: var(--color-primary-light);
  animation: pulse-soft 3s ease-in-out infinite;
}

.step-num {
  position: absolute;
  top: -0.25rem;
  right: -0.25rem;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 9999px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
  z-index: 20;
}

.step-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--color-text-hint);
  line-height: 1.7;
  max-width: 12.5rem;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   14. 小程序 .mini
   -------------------------------------------------------------------------- */
.mini-section {
  position: relative;
  padding: 6rem 1.5rem;
}

.mini-container {
  max-width: 64rem;
  margin: 0 auto;
}

.mini-card {
  position: relative;
  background: linear-gradient(135deg,
    var(--color-primary) 0%,
    var(--color-primary-dark) 50%,
    var(--color-brand-700) 100%);
  border-radius: 2.5rem;
  overflow: hidden;
  box-shadow: 0 25px 50px rgba(103, 194, 58, 0.3);
}

.mini-deco-1 {
  position: absolute;
  top: 0;
  right: 0;
  width: 16rem;
  height: 16rem;
  background: rgba(245, 166, 35, 0.2);
  border-radius: 9999px;
  filter: blur(64px);
}

.mini-deco-2 {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 20rem;
  height: 20rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 9999px;
  filter: blur(64px);
}

.mini-grid-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.1;
  pointer-events: none;
}

.mini-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
  padding: 2.5rem;
}

.mini-qr-wrap {
  flex-shrink: 0;
}

.mini-qr {
  position: relative;
  background: var(--color-bg-card);
  border-radius: 1.5rem;
  padding: 1.5rem;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.mini-qr-grid {
  position: relative;
  width: 10rem;
  height: 10rem;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  gap: 0.25rem;
}

.mini-qr-img {
  width: 10rem;
  height: 10rem;
  object-fit: contain;
  border-radius: 0.75rem;
  display: block;
}

.mini-qr-cell {
  border-radius: 0.125rem;
}

.mini-qr-cell.on {
  background: #111827;
}

.mini-qr-cell.off {
  background: transparent;
}

.mini-qr-logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  background: var(--color-bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
  border: 4px solid #ffffff;
}

.mini-qr-logo img {
  width: 2.5rem;
  height: 2.5rem;
  object-fit: contain;
}

.mini-qr-text {
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-text-hint);
  margin-top: 1rem;
  font-weight: 500;
}

.mini-content {
  flex: 1;
  text-align: center;
  color: #ffffff;
}

.mini-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  margin-bottom: 1.25rem;
}

.mini-badge svg {
  width: 0.875rem;
  height: 0.875rem;
}

.mini-badge span {
  font-size: 0.75rem;
  font-weight: 500;
}

.mini-title {
  font-size: 1.875rem;
  font-weight: 900;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.mini-desc {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 28rem;
}

.mini-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.mini-action-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: 9999px;
  background: #ffffff;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.875rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: all 0.3s var(--ease-smooth);
}

.mini-action-primary:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.mini-action-primary svg {
  width: 1.125rem;
  height: 1.125rem;
}

.mini-action-text {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.mini-action-text svg {
  width: 1rem;
  height: 1rem;
}

/* --------------------------------------------------------------------------
   15. 页脚 .footer
   -------------------------------------------------------------------------- */
.footer {
  position: relative;
  background: var(--color-brand-900);
  color: #ffffff;
  padding: 4rem 1.5rem 2rem;
  overflow: hidden;
}

.footer-top-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 0.25rem;
  background: linear-gradient(to right,
    var(--color-primary) 0%,
    var(--color-primary-light) 50%,
    var(--color-primary) 100%);
}

.footer-glow {
  position: absolute;
  top: -5rem;
  right: 0;
  width: 20rem;
  height: 20rem;
  background: rgba(103, 194, 58, 0.1);
  border-radius: 9999px;
  filter: blur(64px);
}

.footer-inner {
  position: relative;
  max-width: 80rem;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  max-width: 20rem;
}

.footer-brand-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.footer-brand-logo {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.75rem;
  object-fit: contain;
}

.footer-brand-name {
  font-weight: 700;
  font-size: 1.125rem;
}

.footer-desc {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  line-height: 1.7;
}

.footer-title {
  font-weight: 600;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1rem;
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-link {
  position: relative;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
  transition: color 0.3s var(--ease-smooth);
}

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

.footer-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin-bottom: 1.5rem;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-copy,
.footer-tag {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.75rem;
}

/* --------------------------------------------------------------------------
   16. 滚动渐入动画 [data-aos]
   配合 JS IntersectionObserver 添加 .aos-animate 类
   -------------------------------------------------------------------------- */
[data-aos] {
  opacity: 0;
  transition: opacity 0.6s var(--ease-smooth), transform 0.6s var(--ease-smooth);
  will-change: opacity, transform;
}

[data-aos="fade-up"] {
  transform: translateY(30px);
}

[data-aos="fade-down"] {
  transform: translateY(-30px);
}

[data-aos="fade-left"] {
  transform: translateX(30px);
}

[data-aos="fade-right"] {
  transform: translateX(-30px);
}

[data-aos="fade-in"] {
  transform: none;
}

[data-aos="zoom-in"] {
  transform: scale(0.9);
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

/* 延迟工具类(配合 data-aos) */
[data-aos][data-aos-delay="100"] { transition-delay: 0.1s; }
[data-aos][data-aos-delay="200"] { transition-delay: 0.2s; }
[data-aos][data-aos-delay="300"] { transition-delay: 0.3s; }
[data-aos][data-aos-delay="400"] { transition-delay: 0.4s; }
[data-aos][data-aos-delay="500"] { transition-delay: 0.5s; }

/* --------------------------------------------------------------------------
   17. 响应式适配
   -------------------------------------------------------------------------- */

/* sm 断点 640px */
@media (min-width: 640px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-cta {
    flex-direction: row;
  }

  .hero-btn {
    padding: 0.75rem 2rem;
  }

  .hero-desc {
    font-size: 1.125rem;
  }

  .hero-desc-full {
    font-size: 1rem;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

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

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

  .mini-actions {
    flex-direction: row;
    justify-content: center;
  }
}

/* md 断点 768px */
@media (min-width: 768px) {
  .navbar-links {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }

  .mobile-menu {
    display: none !important;
  }

  .hero-title {
    font-size: 3rem;
  }

  .hero-logo {
    width: 8rem;
    height: 8rem;
  }

  .hero-desc {
    font-size: 1.125rem;
  }

  .hero-desc-full {
    font-size: 1rem;
  }

  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .stat-card {
    padding: 2rem;
  }

  .stat-value {
    font-size: 3rem;
  }

  .stat-suffix {
    font-size: 1.875rem;
  }

  .section-title {
    font-size: 3rem;
  }

  .detail-title {
    font-size: 1.875rem;
  }

  .steps-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .steps-line {
    display: block;
  }

  .mini-inner {
    flex-direction: row;
    align-items: center;
    padding: 4rem;
  }

  .mini-content {
    text-align: left;
  }

  .mini-title {
    font-size: 2.25rem;
  }

  .mini-desc {
    font-size: 1.125rem;
  }

  .mini-actions {
    justify-content: flex-start;
  }

  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-bottom {
    flex-direction: row;
  }
}

/* lg 断点 1024px */
@media (min-width: 1024px) {
  .hero-floating {
    display: block;
  }

  .hero-title {
    font-size: 4.5rem;
  }

  .hero-desc {
    font-size: 1.5rem;
  }

  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .detail-row {
    flex-direction: row;
  }

  .detail-row.reversed {
    flex-direction: row-reverse;
  }

  .section-title {
    font-size: 3rem;
  }

  .detail-title {
    font-size: 1.875rem;
  }
}

/* 移动端隐藏浮动装饰(lg 以下) */
@media (max-width: 1023px) {
  .hero-floating {
    display: none;
  }
}

/* 手机端: visual 可视化组件优化 */
@media (max-width: 768px) {
  /* 消息文字允许换行，避免长消息在窄屏被截断 */
  .visual-message-text {
    white-space: normal;
    text-overflow: clip;
  }
  /* 卡片内边距收窄，释放更多内容空间 */
  .visual-card {
    padding: 1rem;
  }
  /* 发布操作区允许换行，防止溢出 */
  .visual-publish-actions {
    flex-wrap: wrap;
    gap: 0.75rem;
  }
  /* 圈子卡片间距收窄 */
  .visual-circle-grid {
    gap: 0.75rem;
  }
  /* 探店项内边距收窄 */
  .visual-explore-item {
    padding: 0.5rem;
    gap: 0.5rem;
  }
  /* 消息项内边距收窄 */
  .visual-message-item {
    padding: 0.5rem;
    gap: 0.5rem;
  }
}

/* 大屏容器优化 */
@media (min-width: 1280px) {
  .navbar-inner {
    padding: 0 1.5rem;
  }
}

/* --------------------------------------------------------------------------
   18. 减少动画偏好(无障碍)
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  [data-aos] {
    opacity: 1;
    transform: none;
  }

  .cursor-glow,
  .scroll-progress-bar {
    display: none !important;
  }
}

/* --------------------------------------------------------------------------
   19. 高端交互增强样式
   -------------------------------------------------------------------------- */

/* 滚动进度条 */
.scroll-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light), var(--color-secondary));
  z-index: 9999;
  border-radius: 0 3px 3px 0;
  box-shadow: 0 0 8px rgba(103, 194, 58, 0.5);
  transition: width 0.1s linear;
}

/* 光标光晕 */
.cursor-glow {
  position: fixed;
  top: -150px;
  left: -150px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(103, 194, 58, 0.08) 0%, transparent 60%);
  pointer-events: none;
  z-index: 9998;
  will-change: transform;
}

/* 磁吸按钮过渡 */
.hero-btn,
.nav-cta,
.mini-action-primary {
  transition: transform 0.3s cubic-bezier(0.23, 1, 0.32, 1),
              box-shadow 0.3s var(--ease-smooth),
              background 0.3s var(--ease-smooth);
}

/* 卡片光效追踪 */
.feature-card,
.stat-card,
.step-item {
  position: relative;
  overflow: hidden;
}

.feature-card::before,
.stat-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    400px circle at var(--spotlight-x, 50%) var(--spotlight-y, 50%),
    rgba(103, 194, 58, 0.06),
    transparent 40%
  );
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
  z-index: 1;
}

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

/* 导航链接活跃状态 */
.nav-link.active {
  color: #ffffff;
}

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

.navbar.scrolled .nav-link.active {
  color: var(--color-primary);
}

/* 功能卡片悬停增强 - 光晕 */
.feature-card:hover {
  box-shadow: 0 20px 50px rgba(103, 194, 58, 0.15);
}

/* 统计卡片悬停光晕 */
.stat-card {
  transition: transform 0.3s var(--ease-smooth), box-shadow 0.3s var(--ease-smooth);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(103, 194, 58, 0.12);
}

/* 步骤项悬停增强 */
.step-item {
  transition: transform 0.3s var(--ease-smooth);
}

.step-item:hover .step-circle {
  box-shadow: 0 0 0 8px rgba(103, 194, 58, 0.1);
}

.step-circle {
  transition: box-shadow 0.3s var(--ease-smooth);
}

/* 涟漪效果 */
.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  pointer-events: none;
  animation: ripple-spread 0.6s ease-out;
}

@keyframes ripple-spread {
  to {
    transform: scale(2);
    opacity: 0;
  }
}