/* ============================================
   农业AI巡检 - 个性化企业官网样式
   设计风格：有机生物科技感 (Organic Biophilic Tech)
   ============================================ */

/* ---------- 字体导入 ---------- */
@import url('https://fonts.googleapis.com/css2?family=Exo:wght@300;400;500;600;700;800&family=Noto+Sans+SC:wght@300;400;500;700&family=Roboto+Mono:wght@400;500;700&display=swap');

/* ---------- CSS 变量 ---------- */
:root {
  /* 主色系 - 大地绿 + 丰收金 */
  --c-primary: #0d6e3e;
  --c-primary-dark: #0a4f2c;
  --c-primary-light: #1aa055;
  --c-accent: #d4a02a;
  --c-accent-light: #e8c34a;
  --c-bg: #f4f9f1;
  --c-bg-alt: #eaf4e4;
  --c-dark: #0a2e1a;
  --c-text: #1a3a28;
  --c-text-light: #5a7a68;
  --c-white: #ffffff;
  --c-border: rgba(13, 110, 62, 0.15);
  --c-glass: rgba(255, 255, 255, 0.7);

  /* 渐变 */
  --grad-hero: linear-gradient(135deg, #0a2e1a 0%, #0d6e3e 50%, #1aa055 100%);
  --grad-gold: linear-gradient(135deg, #d4a02a 0%, #e8c34a 100%);
  --grad-green: linear-gradient(135deg, #0d6e3e 0%, #1aa055 100%);
  --grad-dark: linear-gradient(180deg, #0a2e1a 0%, #0d4f2c 100%);

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(13, 110, 62, 0.08);
  --shadow-md: 0 8px 24px rgba(13, 110, 62, 0.12);
  --shadow-lg: 0 20px 60px rgba(13, 110, 62, 0.18);
  --shadow-gold: 0 8px 24px rgba(212, 160, 42, 0.25);

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 999px;

  /* 间距 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* 字体 */
  --font-head: 'Exo', 'Noto Sans SC', sans-serif;
  --font-body: 'Noto Sans SC', 'Exo', sans-serif;
  --font-mono: 'Roboto Mono', monospace;

  /* 布局 */
  --max-width: 1280px;
  --nav-height: 72px;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: 0.2s ease-out;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: auto;
}

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

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

ul, ol {
  list-style: none;
}

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

/* ---------- 通用工具类 ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-3xl) 0;
  position: relative;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--c-dark);
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--c-text-light);
  max-width: 640px;
  margin-bottom: var(--space-2xl);
  line-height: 1.8;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--c-primary);
  background: rgba(13, 110, 62, 0.08);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.section-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
  animation: pulse 2s ease-in-out infinite;
}

.text-center { text-align: center; }
.text-gradient {
  background: var(--grad-green);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.btn-primary {
  background: var(--grad-green);
  color: var(--c-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::after {
  width: 300px;
  height: 300px;
}

.btn-gold {
  background: var(--grad-gold);
  color: var(--c-dark);
  box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(212, 160, 42, 0.35);
}

.btn-outline {
  border: 2px solid var(--c-primary);
  color: var(--c-primary);
  background: transparent;
}

.btn-outline:hover {
  background: var(--c-primary);
  color: var(--c-white);
}

.btn-white {
  background: var(--c-white);
  color: var(--c-primary);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1.05rem;
}

/* ---------- 导航栏 ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: all var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(244, 249, 241, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--c-border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-dark);
  transition: color var(--transition);
}

.navbar:not(.scrolled) .nav-logo {
  color: var(--c-white);
}

.nav-logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--grad-green);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.nav-logo-icon svg {
  width: 24px;
  height: 24px;
  color: var(--c-white);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  position: relative;
  color: var(--c-white);
}

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

.navbar:not(.scrolled) .nav-link {
  color: rgba(255, 255, 255, 0.9);
}

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

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
  color: var(--c-primary) !important;
  background: rgba(13, 110, 62, 0.08);
}

.nav-cta {
  padding: 10px 24px;
  background: var(--grad-gold);
  color: var(--c-dark) !important;
  border-radius: var(--radius-full);
  font-weight: 600;
  box-shadow: var(--shadow-gold);
  transition: all var(--transition);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212, 160, 42, 0.4);
}

/* 汉堡菜单按钮 */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  transition: all var(--transition);
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: all var(--transition);
}

.navbar.scrolled .nav-toggle {
  background: rgba(13, 110, 62, 0.08);
}

.navbar.scrolled .nav-toggle span {
  background: var(--c-primary);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 移动端菜单面板 */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 380px;
  height: 100vh;
  background: var(--grad-dark);
  z-index: 999;
  padding: 100px 32px 40px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: right 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  overflow-y: auto;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu .nav-link {
  font-size: 1.1rem;
  padding: 16px 20px;
  color: rgba(255, 255, 255, 0.9) !important;
  border-radius: var(--radius-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-menu .nav-link:hover {
  background: rgba(255, 255, 255, 0.06);
}

.mobile-menu .nav-cta {
  margin-top: 16px;
  text-align: center;
  justify-content: center;
}

.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 46, 26, 0.5);
  backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ---------- Hero 首屏 ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--grad-hero);
}

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

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-hero);
  opacity: 0.7;
}

/* 装饰性粒子 */
.hero-particles {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(212, 160, 42, 0.4);
  animation: floatParticle linear infinite;
}

@keyframes floatParticle {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

/* Hero 内容 */
.hero-content {
  position: relative;
  z-index: 2;
  padding-top: var(--nav-height);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  background: rgba(212, 160, 42, 0.15);
  border: 1px solid rgba(212, 160, 42, 0.3);
  border-radius: var(--radius-full);
  color: var(--c-accent-light);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 1px;
  margin-bottom: var(--space-lg);
  animation: fadeInDown 0.8s ease-out;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-accent);
  animation: pulse 2s ease-in-out infinite;
}

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 800;
  color: var(--c-white);
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-title .highlight {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin-bottom: var(--space-xl);
  line-height: 1.8;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

/* Hero 浮动数据卡 */
.hero-stats {
  position: absolute;
  right: var(--space-xl);
  bottom: var(--space-2xl);
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  animation: fadeInRight 1s ease-out 0.8s both;
}

.hero-stat-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 20px 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all var(--transition);
}

.hero-stat-card:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateX(-8px);
}

.hero-stat-value {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  color: var(--c-accent-light);
}

.hero-stat-label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
}

/* 滚动提示 */
.scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  letter-spacing: 1px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: bounce 2s ease-in-out infinite;
}

.scroll-hint .mouse {
  width: 24px;
  height: 38px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 12px;
  position: relative;
}

.scroll-hint .mouse::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 6px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 2px;
  animation: scrollDot 1.5s ease-in-out infinite;
}

/* ---------- SVG 波浪分割线 ---------- */
.wave-divider {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  line-height: 0;
  z-index: 3;
}

.wave-divider svg {
  width: 100%;
  height: 80px;
  display: block;
}

.wave-divider path {
  fill: var(--c-bg);
}

/* ---------- 闭环流程图 ---------- */
.loop-section {
  background: var(--c-bg);
}

.loop-diagram {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
  position: relative;
}

.loop-node {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  box-shadow: var(--shadow-md);
  position: relative;
  transition: all var(--transition);
  border: 2px solid transparent;
}

.loop-node:hover {
  border-color: var(--c-primary);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.loop-node-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-bg-alt);
}

.loop-node:nth-child(1) .loop-node-icon { background: rgba(13, 110, 62, 0.1); color: var(--c-primary); }
.loop-node:nth-child(3) .loop-node-icon { background: rgba(212, 160, 42, 0.1); color: var(--c-accent); }
.loop-node:nth-child(5) .loop-node-icon { background: rgba(26, 160, 85, 0.1); color: var(--c-primary-light); }

.loop-node-icon svg { width: 32px; height: 32px; }

.loop-node-title {
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: 8px;
}

.loop-node-desc {
  font-size: 0.88rem;
  color: var(--c-text-light);
  line-height: 1.6;
}

.loop-node-num {
  position: absolute;
  top: -12px;
  right: -12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--grad-gold);
  color: var(--c-dark);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.loop-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-primary);
}

.loop-arrow svg {
  width: 40px;
  height: 40px;
}

.loop-arrow .arrow-line {
  stroke-dasharray: 5 5;
  animation: dashFlow 1s linear infinite;
}

@keyframes dashFlow {
  to { stroke-dashoffset: -10; }
}

/* 回传虚线 */
.loop-feedback {
  margin-top: var(--space-lg);
  text-align: center;
  position: relative;
}

.loop-feedback-line {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 20px;
  background: rgba(13, 110, 62, 0.06);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  color: var(--c-text-light);
  font-family: var(--font-mono);
}

.loop-feedback-line::before,
.loop-feedback-line::after {
  content: '';
  width: 60px;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--c-primary) 0 5px, transparent 5px 10px);
}

/* ---------- 千亩日巡 - 数据展示 ---------- */
.metrics-section {
  background: var(--grad-dark);
  color: var(--c-white);
  position: relative;
  overflow: hidden;
}

.metrics-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(212, 160, 42, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.metric-card {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition);
}

.metric-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-6px);
  border-color: rgba(212, 160, 42, 0.3);
}

.metric-value {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  color: var(--c-accent-light);
  line-height: 1;
}

.metric-unit {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.6);
  margin-left: 4px;
}

.metric-label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 12px;
}

/* ---------- 证据链时间线 ---------- */
.evidence-section {
  background: var(--c-bg);
}

.evidence-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
  position: relative;
}

.evidence-timeline::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 0;
  right: 0;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--c-primary) 0 8px, transparent 8px 16px);
}

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

.evidence-step-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  background: var(--c-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  position: relative;
  z-index: 2;
  transition: all var(--transition);
  border: 3px solid var(--c-bg);
}

.evidence-step:hover .evidence-step-icon {
  transform: scale(1.1);
  border-color: var(--c-accent);
}

.evidence-step-icon svg {
  width: 36px;
  height: 36px;
  color: var(--c-primary);
}

.evidence-step-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--c-dark);
  margin-bottom: 8px;
}

.evidence-step-desc {
  font-size: 0.88rem;
  color: var(--c-text-light);
  line-height: 1.6;
  padding: 0 12px;
}

.evidence-step-num {
  position: absolute;
  top: -8px;
  right: 30%;
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: rgba(13, 110, 62, 0.08);
  z-index: 0;
}

/* ---------- 解决方案卡片 ---------- */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.solution-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.solution-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.solution-card-img {
  height: 220px;
  overflow: hidden;
  position: relative;
}

.solution-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

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

.solution-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10, 46, 26, 0.5) 100%);
}

.solution-card-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--c-primary);
}

.solution-card-body {
  padding: var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.solution-card-title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: 10px;
}

.solution-card-desc {
  font-size: 0.9rem;
  color: var(--c-text-light);
  line-height: 1.7;
  margin-bottom: var(--space-md);
  flex: 1;
}

.solution-card-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-md);
}

.solution-card-feature {
  font-size: 0.78rem;
  padding: 4px 10px;
  background: var(--c-bg-alt);
  border-radius: var(--radius-full);
  color: var(--c-primary);
}

.solution-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--c-primary);
  transition: gap var(--transition);
}

.solution-card-link:hover {
  gap: 14px;
}

.solution-card-link svg {
  width: 16px;
  height: 16px;
}

/* ---------- 案例展示 ---------- */
.cases-section {
  background: var(--c-bg-alt);
}

.case-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-2xl);
  background: var(--c-white);
  transition: all var(--transition);
}

.case-card:hover {
  box-shadow: var(--shadow-lg);
}

.case-card:nth-child(even) .case-card-img {
  order: 2;
}

.case-card-img {
  height: 100%;
  min-height: 320px;
  overflow: hidden;
  position: relative;
}

.case-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.case-card:hover .case-card-img img {
  transform: scale(1.08);
}

.case-card-body {
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.case-card-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--c-accent);
  margin-bottom: var(--space-md);
}

.case-card-title {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: var(--space-md);
}

.case-card-desc {
  font-size: 0.92rem;
  color: var(--c-text-light);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.case-card-data {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.case-data-item {
  text-align: center;
  padding: var(--space-md);
  background: var(--c-bg-alt);
  border-radius: var(--radius-md);
}

.case-data-value {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--c-primary);
}

.case-data-label {
  font-size: 0.78rem;
  color: var(--c-text-light);
  margin-top: 4px;
}

/* ---------- CTA 区域 ---------- */
.cta-section {
  position: relative;
  padding: var(--space-3xl) 0;
  overflow: hidden;
}

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

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

.cta-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 46, 26, 0.92) 0%, rgba(13, 110, 62, 0.85) 100%);
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--c-white);
}

.cta-title {
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.cta-subtitle {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto var(--space-xl);
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--c-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand .nav-logo {
  color: var(--c-white);
  margin-bottom: var(--space-md);
}

.footer-desc {
  font-size: 0.88rem;
  line-height: 1.8;
  margin-bottom: var(--space-md);
  max-width: 320px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  color: var(--c-accent);
  flex-shrink: 0;
}

.footer-col-title {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-white);
  margin-bottom: var(--space-md);
}

.footer-link {
  font-size: 0.88rem;
  display: block;
  padding: 6px 0;
  transition: all var(--transition-fast);
}

.footer-link:hover {
  color: var(--c-accent-light);
  transform: translateX(6px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}

.footer-bottom a:hover {
  color: var(--c-accent-light);
}

/* ---------- 页面 Banner (内页) ---------- */
.page-banner {
  position: relative;
  min-height: 50vh;
  display: flex;
  align-items: center;
  background: var(--grad-hero);
  overflow: hidden;
  padding-top: var(--nav-height);
}

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

.page-banner-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.page-banner-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-hero);
  opacity: 0.8;
}

.page-banner-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: var(--c-white);
  width: 100%;
}

.page-banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(212, 160, 42, 0.15);
  border: 1px solid rgba(212, 160, 42, 0.3);
  border-radius: var(--radius-full);
  color: var(--c-accent-light);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  margin-bottom: var(--space-md);
}

.page-banner-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.page-banner-desc {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: var(--space-md);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

.breadcrumb a:hover {
  color: var(--c-accent-light);
}

/* ---------- 解决方案详情页 ---------- */
.detail-section {
  padding: var(--space-3xl) 0;
}

.detail-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  margin-bottom: var(--space-3xl);
}

.detail-block:nth-child(even) .detail-block-img {
  order: 2;
}

.detail-block-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
  aspect-ratio: 4/3;
}

.detail-block-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.detail-block:hover .detail-block-img img {
  transform: scale(1.05);
}

.detail-block-num {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--grad-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--c-dark);
  z-index: 2;
  box-shadow: var(--shadow-md);
}

.detail-block-content .section-tag {
  margin-bottom: var(--space-md);
}

.detail-block-title {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: var(--space-md);
}

.detail-block-desc {
  font-size: 0.95rem;
  color: var(--c-text-light);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.detail-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.detail-feature {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.detail-feature-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(13, 110, 62, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--c-primary);
}

.detail-feature-icon svg {
  width: 18px;
  height: 18px;
}

.detail-feature-text h4 {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-dark);
  margin-bottom: 2px;
}

.detail-feature-text p {
  font-size: 0.85rem;
  color: var(--c-text-light);
  line-height: 1.6;
}

/* ---------- 技术规格表 ---------- */
.spec-section {
  background: var(--c-bg-alt);
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.spec-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.spec-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.spec-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--grad-green);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-white);
  margin-bottom: var(--space-md);
}

.spec-card-icon svg { width: 24px; height: 24px; }

.spec-card-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--c-dark);
  margin-bottom: var(--space-md);
}

.spec-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.spec-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  padding: 8px 0;
  border-bottom: 1px dashed var(--c-border);
}

.spec-item:last-child { border-bottom: none; }

.spec-item-label { color: var(--c-text-light); }
.spec-item-value {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--c-primary);
}

/* ---------- 关于我们 ---------- */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about-intro-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
}

.about-intro-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-intro-text p {
  font-size: 0.95rem;
  color: var(--c-text-light);
  line-height: 1.9;
  margin-bottom: var(--space-md);
}

/* 里程碑 */
.milestones {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-top: var(--space-2xl);
}

.milestones::before {
  content: '';
  position: absolute;
  top: 30px;
  left: 5%;
  right: 5%;
  height: 3px;
  background: repeating-linear-gradient(90deg, var(--c-primary) 0 6px, transparent 6px 12px);
}

.milestone {
  text-align: center;
  position: relative;
  z-index: 1;
}

.milestone-dot {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  background: var(--c-white);
  border: 3px solid var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--c-primary);
  transition: all var(--transition);
}

.milestone:hover .milestone-dot {
  background: var(--grad-green);
  color: var(--c-white);
  transform: scale(1.1);
}

.milestone-year {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--c-dark);
  margin-bottom: 4px;
}

.milestone-text {
  font-size: 0.85rem;
  color: var(--c-text-light);
  max-width: 140px;
  margin: 0 auto;
}

/* 价值观卡片 */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.value-card {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  background: var(--c-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border-top: 4px solid transparent;
}

.value-card:hover {
  border-top-color: var(--c-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.value-card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  background: var(--c-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-primary);
}

.value-card-icon svg { width: 32px; height: 32px; }

.value-card-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--c-dark);
  margin-bottom: 10px;
}

.value-card-desc {
  font-size: 0.88rem;
  color: var(--c-text-light);
  line-height: 1.7;
}

/* ---------- 联系页 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  margin-top: var(--space-2xl);
}

.contact-info-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.contact-info-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--c-border);
}

.contact-info-item:last-child { border-bottom: none; }

.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(13, 110, 62, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--c-primary);
}

.contact-info-icon svg { width: 22px; height: 22px; }

.contact-info-label {
  font-size: 0.82rem;
  color: var(--c-text-light);
  margin-bottom: 4px;
}

.contact-info-value {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  color: var(--c-dark);
}

/* 联系表单 */
.contact-form-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--c-text);
  margin-bottom: 8px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--c-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--c-text);
  background: var(--c-bg);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--c-primary);
  background: var(--c-white);
  box-shadow: 0 0 0 3px rgba(13, 110, 62, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* 地图占位 */
.map-placeholder {
  margin-top: var(--space-2xl);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 400px;
  background: var(--c-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.map-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.map-placeholder-text {
  position: absolute;
  text-align: center;
  color: var(--c-text);
}

.map-placeholder-text svg {
  width: 48px;
  height: 48px;
  color: var(--c-primary);
  margin-bottom: var(--space-sm);
}

/* ---------- 动画 ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

@keyframes scrollDot {
  0% { top: 6px; opacity: 1; }
  100% { top: 20px; opacity: 0; }
}

/* 滚动揭示动画 */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left { transform: translateX(-60px); }
.reveal-right { transform: translateX(60px); }
.reveal-left.active, .reveal-right.active { transform: translateX(0); }

.reveal-scale { transform: scale(0.85); }
.reveal-scale.active { transform: scale(1); }

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* 滚动进度条 */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--grad-gold);
  z-index: 1001;
  width: 0;
  transition: width 0.1s ease;
}

/* ---------- 案例筛选 ---------- */
.case-filter {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-family: var(--font-head);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--c-text);
  background: var(--c-white);
  border: 1px solid var(--c-border);
  transition: all var(--transition);
  cursor: pointer;
}

.filter-btn:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}

.filter-btn.active {
  background: var(--grad-green);
  color: var(--c-white);
  border-color: transparent;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .nav-menu { display: none; }
  .nav-toggle { display: flex; }

  .container { padding: 0 var(--space-lg); }

  .loop-diagram {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .loop-arrow {
    transform: rotate(90deg);
  }

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

  .evidence-timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
  }

  .evidence-timeline::before { display: none; }

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

  .detail-block {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .detail-block:nth-child(even) .detail-block-img {
    order: 0;
  }

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

  .about-intro {
    grid-template-columns: 1fr;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }

  .hero-stats {
    display: none;
  }
}

@media (max-width: 768px) {
  :root {
    --space-3xl: 64px;
    --space-2xl: 40px;
  }

  .container { padding: 0 var(--space-md); }

  .section { padding: var(--space-3xl) 0; }

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

  .evidence-timeline {
    grid-template-columns: 1fr;
  }

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

  .case-card {
    grid-template-columns: 1fr;
  }

  .case-card:nth-child(even) .case-card-img {
    order: 0;
  }

  .case-card-img {
    min-height: 200px;
  }

  .case-card-body {
    padding: var(--space-lg);
  }

  .case-card-data {
    grid-template-columns: 1fr;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .milestones {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .milestones::before { display: none; }

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

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

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

  .cta-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .scroll-hint { display: none; }
}

@media (max-width: 480px) {
  .section-tag { font-size: 0.72rem; }
  .metric-value { font-size: 2rem; }
}

/* ---------- 移动端底部导航 ---------- */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.08);
  z-index: 900;
  padding: 8px 0;
  border-top: 1px solid var(--c-border);
}

.mobile-bottom-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px;
  color: var(--c-text-light);
  font-size: 0.7rem;
  transition: color var(--transition-fast);
}

.mobile-bottom-nav-item svg {
  width: 22px;
  height: 22px;
}

.mobile-bottom-nav-item.active,
.mobile-bottom-nav-item:hover {
  color: var(--c-primary);
}

@media (max-width: 768px) {
  .mobile-bottom-nav {
    display: flex;
  }

  body {
    padding-bottom: 60px;
  }
}

/* ---------- 加载动画 ---------- */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--grad-dark);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-leaf {
  width: 60px;
  height: 60px;
  position: relative;
  animation: spin 2s linear infinite;
}

.loader-leaf svg {
  width: 100%;
  height: 100%;
  color: var(--c-accent);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}