/* ============================================
   官网样式 - 现代暖色系设计 (移动端兼容版)
   ============================================ */

:root {
  --coral: #ff6b35;
  --coral-light: #ff8a5c;
  --coral-dark: #e85a2a;
  --orange: #f59e0b;
  --green: #10b981;
  --green-light: #34d399;
  --purple: #8b5cf6;
  --blue: #3b82f6;
  --bg-warm: #fffaf5;
  --bg-cream: #fef7ed;
  --bg-white: #ffffff;
  --text-primary: #1c1917;
  --text-secondary: #57534e;
  --text-muted: #a8a29e;
  --border-light: #f5f0eb;
  --shadow-sm: 0 1px 3px rgba(28,25,23,.06);
  --shadow-md: 0 4px 16px rgba(28,25,23,.08);
  --shadow-lg: 0 12px 40px rgba(28,25,23,.12);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* 安全区域 */
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* 修复100vh在移动端的问题 */
  height: -webkit-fill-available;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--text-primary);
  background: var(--bg-white);
  line-height: 1.6;
  overflow-x: hidden;
  /* 字体加载期间避免布局偏移 */
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; touch-action: manipulation; }

/* ========== 导航栏 ========== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,250,245,.95);
  border-bottom: 1px solid transparent;
  transition: all .35s ease;
  padding-top: var(--safe-top);
}
/* backdrop-filter 降级方案 */
@supports (backdrop-filter: blur(20px)) or (-webkit-backdrop-filter: blur(20px)) {
  .nav {
    background: rgba(255,250,245,.82);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    backdrop-filter: blur(20px) saturate(1.4);
  }
}
.nav.scrolled {
  background: rgba(255,250,245,.97);
  border-bottom-color: var(--border-light);
  box-shadow: var(--shadow-sm);
}
@supports (backdrop-filter: blur(20px)) or (-webkit-backdrop-filter: blur(20px)) {
  .nav.scrolled {
    background: rgba(255,250,245,.92);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    backdrop-filter: blur(20px) saturate(1.4);
  }
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  -webkit-box-pack: justify; justify-content: space-between;
  padding: 16px 32px;
}
.nav-brand {
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  /* gap 降级 */
  margin-right: 10px;
}
.nav-brand > *:first-child { margin-right: 10px; }
.brand-icon { font-size: 26px; }
.nav-brand {
  font-size: 22px; font-weight: 900; color: var(--text-primary);
}
.nav-links {
  display: -webkit-box; display: flex;
  /* gap 降级为 margin */
}
.nav-links > a { margin-left: 36px; }
.nav-links > a:first-child { margin-left: 0; }
.nav-links a {
  font-size: 15px; font-weight: 500; color: var(--text-secondary);
  transition: color .2s; position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 2px; background: var(--coral); border-radius: 1px;
  transform: scaleX(0); transition: transform .25s ease;
}
.nav-links a:hover { color: var(--coral); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-btn {
  padding: 10px 24px; background: var(--coral); color: #fff !important;
  font-size: 14px; font-weight: 700; border-radius: 999px;
  transition: all .28s ease; box-shadow: 0 4px 14px rgba(255,107,53,.3);
  white-space: nowrap;
}
.nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(255,107,53,.42);
  background: var(--coral-dark);
}
.nav-hamburger {
  display: none; -webkit-box-orient: vertical; -webkit-box-direction: normal;
  flex-direction: column; width: 30px; height: 24px; cursor: pointer;
  background: none; border: none; padding: 0;
  position: relative;
}
/* hamburger gap 降级 */
.nav-hamburger span {
  display: block; height: 2.5px; background: var(--text-primary);
  border-radius: 2px; transition: all .3s ease;
  position: absolute; left: 0; width: 100%;
}
.nav-hamburger span:nth-child(1) { top: 0; }
.nav-hamburger span:nth-child(2) { top: 50%; margin-top: -1.25px; }
.nav-hamburger span:nth-child(3) { bottom: 0; }
.mobile-panel {
  display: none; position: absolute; top: 100%; left: 0; right: 0;
  background: var(--bg-white); padding: 20px 32px 28px;
  border-bottom: 1px solid var(--border-light);
  box-shadow: var(--shadow-md);
}
.mobile-panel.open {
  display: block;
}
.mobile-panel.open > a {
  display: block; padding: 12px 0; font-size: 15px; font-weight: 500;
  color: var(--text-secondary); border-radius: var(--radius-sm);
  transition: all .15s;
}
.mobile-panel.open > a + a { margin-top: 4px; }
.mobile-panel a:hover { color: var(--coral); background: rgba(255,107,53,.06); }

/* ========== Hero 区域 ========== */
.hero {
  position: relative;
  /* 使用 dvh 替代 vh，兼容不支持 dvh 的浏览器回退到 100vh */
  min-height: 100vh;
  min-height: -webkit-fill-available;
  min-height: 100dvh;
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  padding-top: 80px; overflow: hidden;
  background: linear-gradient(165deg, var(--bg-warm) 0%, var(--bg-cream) 40%, #fff5ee 70%, #fff 100%);
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none; overflow: hidden;
}
.hero-blob {
  position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: .55;
  animation: float-blob 18s ease-in-out infinite alternate;
  -webkit-animation: float-blob 18s ease-in-out infinite alternate;
}
.hero-blob-1 {
  width: 520px; height: 520px; top: -120px; left: -100px;
  background: radial-gradient(circle, rgba(255,107,53,.35) 0%, transparent 70%);
}
.hero-blob-2 {
  width: 400px; height: 400px; top: 200px; right: -60px;
  background: radial-gradient(circle, rgba(245,158,11,.28) 0%, transparent 70%);
  animation-delay: -6s;
  -webkit-animation-delay: -6s;
}
.hero-blob-3 {
  width: 320px; height: 320px; bottom: -80px; left: 35%;
  background: radial-gradient(circle, rgba(139,92,246,.18) 0%, transparent 70%);
  animation-delay: -12s;
  -webkit-animation-delay: -12s;
}
@keyframes float-blob {
  0% { transform: translate(0, 0) scale(1); -webkit-transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -20px) scale(1.05); -webkit-transform: translate(30px, -20px) scale(1.05); }
  100% { transform: translate(-20px, 20px) scale(.96); -webkit-transform: translate(-20px, 20px) scale(.96); }
}
.hero-grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(28,25,23,.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28,25,23,.02) 1px, transparent 1px);
  background-size: 48px 48px;
  /* mask-image 降级：不支持的浏览器显示全网格 */
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.hero-container {
  max-width: 1180px; margin: 0 auto; padding: 0 24px;
  display: -webkit-box; display: grid;
  grid-template-columns: 1fr 1fr;
  -webkit-box-align: center; align-items: center;
  gap: 64px;
  /* grid gap 降级 */
  -moz-column-gap: 64px; column-gap: 64px;
}

/* Hero 左侧 */
.hero-left { position: relative; z-index: 2; }
.hero-tag {
  display: -webkit-inline-box; display: inline-flex;
  -webkit-box-align: center; align-items: center;
  padding: 8px 18px; background: rgba(255,107,53,.1);
  border: 1px solid rgba(255,107,53,.2); border-radius: 999px;
  font-size: 13px; font-weight: 600; color: var(--coral-dark);
  margin-bottom: 28px;
}
/* tag gap 降级 */
.hero-tag > *:first-child { margin-right: 8px; }
.tag-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--coral);
  animation: pulse-dot 2s ease-in-out infinite;
  -webkit-animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); -webkit-transform: scale(1); }
  50% { opacity: .5; transform: scale(1.4); -webkit-transform: scale(1.4); }
}
.hero-title {
  /* clamp 降级 */
  font-size: 52px;
  font-size: clamp(38px, 5vw, 58px);
  line-height: 1.12;
  font-weight: 900; letter-spacing: -.03em; color: var(--text-primary);
  margin-bottom: 24px;
}
.gradient-text {
  background: linear-gradient(135deg, var(--coral) 0%, var(--orange) 50%, var(--coral-dark) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 4s ease infinite;
  -webkit-animation: gradient-shift 4s ease infinite;
}
@keyframes gradient-shift {
  0% { background-position: 0% center; }
  50% { background-position: 100% center; }
  100% { background-position: 0% center; }
}
.hero-desc {
  font-size: 17px; line-height: 1.72; color: var(--text-secondary);
  margin-bottom: 36px; max-width: 500px;
}
.hero-actions {
  display: -webkit-inline-box; display: inline-flex;
  -webkit-flex-wrap: wrap; flex-wrap: wrap;
  margin-bottom: 44px;
  /* flex gap 降级 */
}
.hero-actions > * { margin-right: 16px; margin-bottom: 12px; }
.btn-primary {
  display: -webkit-inline-box; display: inline-flex;
  -webkit-box-align: center; align-items: center;
  padding: 16px 32px; background: var(--coral); color: #fff;
  font-size: 16px; font-weight: 700; border-radius: 999px;
  border: none; cursor: pointer;
  transition: all .3s cubic-bezier(.34,1.56,.64,1);
  box-shadow: 0 4px 18px rgba(255,107,53,.35), inset 0 1px 0 rgba(255,255,255,.15);
  position: relative; overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}
/* btn gap 降级 */
.btn-primary > *:first-child { margin-right: 10px; }
.btn-primary::before {
  content: ''; position: absolute; top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.2), transparent);
  transition: left .5s ease;
}
.btn-primary:hover::before { left: 100%; }
.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  -webkit-transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 30px rgba(255,107,53,.45);
}
.pulse-btn {
  animation: btn-pulse 2.5s ease-in-out infinite;
  -webkit-animation: btn-pulse 2.5s ease-in-out infinite;
}
@keyframes btn-pulse {
  0%, 100% { box-shadow: 0 4px 18px rgba(255,107,53,.35); }
  50% { box-shadow: 0 4px 28px rgba(255,107,53,.55), 0 0 0 8px rgba(255,107,53,.08); }
}
.btn-secondary {
  display: -webkit-inline-box; display: inline-flex;
  -webkit-box-align: center; align-items: center;
  padding: 16px 32px; background: transparent; color: var(--text-secondary);
  font-size: 16px; font-weight: 600; border-radius: 999px;
  border: 2px solid var(--border-light); cursor: pointer;
  transition: all .25s ease;
  -webkit-tap-highlight-color: transparent;
}
.btn-secondary:hover {
  border-color: var(--coral); color: var(--coral);
  background: rgba(255,107,53,.04);
}

/* 社交证明 */
.hero-social-proof {
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  /* gap 降级 */
}
.hero-social-proof > *:first-child { margin-right: 24px; }
.proof-item {
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  /* gap 降级 */
}
.proof-item > *:not(:last-child) { margin-right: 10px; }
.proof-avatar-stack {
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
}
.pa {
  width: 34px; height: 34px; border-radius: 50%;
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  -webkit-box-pack: center; justify-content: center;
  font-size: 16px; border: 2.5px solid var(--bg-white);
  margin-left: -10px; background: var(--bg-cream);
}
.pa:first-child { margin-left: 0; }
.pa-more {
  width: 34px; height: 34px; border-radius: 50%;
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  -webkit-box-pack: center; justify-content: center;
  font-size: 11px; font-weight: 700; color: var(--coral);
  background: var(--bg-white); border: 2.5px solid var(--border-light);
  margin-left: -10px;
}
.proof-text { font-size: 13px; color: var(--text-muted); }
.proof-text strong { color: var(--text-primary); font-weight: 700; }
.proof-stars { color: var(--orange); letter-spacing: 1px; }
.proof-divider {
  width: 1px; height: 28px; background: var(--border-light);
  margin: 0 24px;
}

/* Hero 右侧手机模拟 */
.hero-right {
  display: -webkit-box; display: flex;
  -webkit-box-pack: center; justify-content: center;
  position: relative; z-index: 2;
}
.phone-mockup {
  position: relative; width: 300px; max-width: 100%;
}
.phone-frame {
  width: 280px; height: 572px; border-radius: 44px;
  background: #1a1a2e; border: 3px solid #333;
  padding: 12px; position: relative; z-index: 2;
  box-shadow:
    0 40px 80px rgba(0,0,0,.2),
    0 8px 24px rgba(0,0,0,.12),
    inset 0 0 0 1px rgba(255,255,255,.06);
}
.phone-notch {
  position: absolute; top: 12px; left: 50%;
  transform: translateX(-50%) translateX(-50%);
  -webkit-transform: translateX(-50%);
  width: 110px; height: 28px; border-radius: 0 0 18px 18px;
  background: #1a1a2e; z-index: 3;
}
.phone-glow {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  -webkit-transform: translate(-50%,-50%);
  width: 340px; height: 340px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,107,53,.18) 0%, transparent 70%);
  filter: blur(40px); -webkit-filter: blur(40px);
  z-index: 1;
  animation: glow-pulse 4s ease-in-out infinite alternate;
  -webkit-animation: glow-pulse 4s ease-in-out infinite alternate;
}
@keyframes glow-pulse {
  0% { transform: translate(-50%,-50%) scale(1); -webkit-transform: translate(-50%,-50%) scale(1); opacity: .6; }
  100% { transform: translate(-50%,-50%) scale(1.15); -webkit-transform: translate(-50%,-50%) scale(1.15); opacity: .9; }
}
.phone-screen {
  width: 100%; height: 100%; border-radius: 36px;
  background: linear-gradient(180deg, #fffaf5 0%, #fff 100%);
  overflow: hidden;
  display: -webkit-box; display: flex;
  -webkit-box-orient: vertical; flex-direction: column;
}
.screen-header { -webkit-box-flex: 0; flex-shrink: 0; }
.screen-statusbar {
  display: -webkit-box; display: flex;
  -webkit-box-pack: justify; justify-content: space-between;
  -webkit-box-align: center; align-items: center;
  padding: 10px 20px 4px; font-size: 12px; font-weight: 600;
}
.status-icons span {
  display: inline-block; width: 18px; height: 10px;
  border: 1.5px solid #333; border-radius: 2px;
  margin-left: 4px; position: relative;
}
.status-icons span:last-child { width: 14px; border-radius: 50% 50% 50% 50%/45% 45% 55% 55%; }
.screen-nav {
  display: -webkit-box; display: flex;
  -webkit-box-pack: justify; justify-content: space-between;
  -webkit-box-align: center; align-items: center;
  padding: 6px 16px 12px;
}
.back-arrow {
  width: 18px; height: 18px;
  border-left: 2.5px solid var(--text-primary);
  border-bottom: 2.5px solid var(--text-primary);
  transform: rotate(45deg);
  -webkit-transform: rotate(45deg);
}
.screen-title { font-size: 17px; font-weight: 700; }
.screen-add { font-size: 22px; font-weight: 300; color: var(--coral); }
.screen-body {
  -webkit-box-flex: 1; flex: 1;
  padding: 12px 14px; overflow: hidden;
}

.mock-pet-card {
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  /* gap 降级 */
  padding: 10px 12px; background: var(--bg-white);
  border-radius: var(--radius-md); box-shadow: var(--shadow-sm);
  margin-bottom: 10px;
}
.mock-pet-card > *:not(:last-child) { margin-right: 10px; }
.mock-pet-avatar { font-size: 28px; }
.mock-pet-info {
  -webkit-box-flex: 1; flex: 1;
  display: -webkit-box; display: flex;
  -webkit-box-orient: vertical; flex-direction: column;
}
.mock-pet-name { font-size: 14px; font-weight: 700; }
.mock-pet-detail { font-size: 11px; color: var(--text-muted); }
.mock-switch { font-size: 12px; color: var(--coral); font-weight: 600; }

.mock-stats-row {
  display: -webkit-box; display: flex;
  margin-bottom: 10px;
}
.mock-stats-row > *:not(:last-child) { margin-right: 6px; }
.mock-stat {
  -webkit-box-flex: 1; flex: 1;
  text-align: center; padding: 8px 4px;
  background: var(--bg-cream); border-radius: var(--radius-sm);
}
.mock-stat b { display: block; font-size: 16px; color: var(--coral); }
.mock-stat span { font-size: 10px; color: var(--text-muted); }

.mock-checkin-grid {
  display: -webkit-box; display: grid;
  grid-template-columns: repeat(4, 1fr);
  -moz-grid-column-gap: 6px; grid-column-gap: 6px;
  -moz-grid-row-gap: 6px; grid-row-gap: 6px;
  margin-bottom: 10px;
}
.mock-ci {
  display: -webkit-box; display: flex;
  -webkit-box-orient: vertical; flex-direction: column;
  -webkit-box-align: center; align-items: center;
  -webkit-box-pack: center; justify-content: center;
  padding: 10px 4px; border-radius: var(--radius-sm); background: var(--bg-white);
  border: 1.5px solid var(--border-light); transition: all .2s;
}
.mock-ci.done { border-color: var(--green); background: rgba(16,185,129,.04); }
.mock-ci.active {
  border-color: var(--coral); background: rgba(255,107,53,.06);
  box-shadow: 0 0 0 3px rgba(255,107,53,.1);
}
.ci-emoji { font-size: 18px; }
.ci-name { font-size: 10px; color: var(--text-secondary); font-weight: 500; }

.mock-health-bar {
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  padding: 8px 10px; background: var(--bg-white);
  border-radius: var(--radius-sm); box-shadow: var(--shadow-sm);
}
.mock-health-bar > *:not(:last-child) { margin-right: 8px; }
.mh-label { font-size: 11px; white-space: nowrap; }
.mh-track {
  -webkit-box-flex: 1; flex: 1;
  height: 8px; background: #f0ece6; border-radius: 4px; overflow: hidden;
}
.mh-fill {
  height: 100%; background: linear-gradient(90deg, var(--green), var(--green-light));
  border-radius: 4px;
  animation: fill-in 1.5s ease forwards;
  -webkit-animation: fill-in 1.5s ease forwards;
}
@keyframes fill-in { from { width: 0; } }
.mh-val { font-size: 12px; font-weight: 700; color: var(--green); }

/* 滚动提示 */
.scroll-indicator {
  position: absolute; bottom: 32px; left: 50%;
  transform: translateX(-50%);
  -webkit-transform: translateX(-50%);
  z-index: 2;
}
.scroll-mouse {
  width: 24px; height: 38px; border: 2px solid var(--text-muted);
  border-radius: 12px;
  display: -webkit-box; display: flex;
  -webkit-box-pack: center; justify-content: center;
  opacity: .5;
}
.scroll-wheel {
  width: 3px; height: 8px; background: var(--text-muted);
  border-radius: 2px; margin-top: 6px;
  animation: scroll-wheel-anim 1.8s ease-in-out infinite;
  -webkit-animation: scroll-wheel-anim 1.8s ease-in-out infinite;
}
@keyframes scroll-wheel-anim {
  0%, 100% { transform: translateY(0); -webkit-transform: translateY(0); opacity: 1; }
  50% { transform: translateY(8px); -webkit-transform: translateY(8px); opacity: .2; }
}

/* ========== 数据亮点条 ========== */
.stats-strip {
  padding: 56px 0; background: var(--bg-white);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
.stats-container {
  max-width: 900px; margin: 0 auto; padding: 0 24px;
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  -webkit-box-pack: center; justify-content: center;
  /* gap 降级 */
}
.stats-container > *:not(:last-child) { margin-right: 40px; }
.stat-block { text-align: center; }
.stat-number {
  font-size: 46px;
  font-size: clamp(32px, 4vw, 46px);
  font-weight: 900; color: var(--coral);
  line-height: 1.1;
}
.stat-unit { font-size: 14px; color: var(--text-muted); margin-top: 4px; font-weight: 500; }
.stat-divider {
  width: 1px; height: 40px; background: var(--border-light);
  flex-shrink: 0;
}

/* ========== 功能区域（Bento Grid）========== */
.features {
  padding: 100px 0; background: var(--bg-cream);
}
.section-container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.section-label { text-align: center; margin-bottom: 64px; }
.label-badge {
  display: inline-block; padding: 6px 18px; border-radius: 999px;
  font-size: 13px; font-weight: 600; color: var(--coral);
  background: rgba(255,107,53,.08); margin-bottom: 20px;
}
.label-alt {
  color: var(--purple);
  background: rgba(139,92,246,.08);
}
.section-heading {
  font-size: 44px;
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 900; line-height: 1.18;
  letter-spacing: -.02em; color: var(--text-primary);
  margin-bottom: 16px;
}
.heading-break { display: none; }
.section-sub { font-size: 17px; color: var(--text-muted); }

.bento-grid {
  display: -webkit-box; display: grid;
  grid-template-columns: repeat(2, 1fr);
  -moz-grid-column-gap: 20px; grid-column-gap: 20px;
  -moz-grid-row-gap: 20px; grid-row-gap: 20px;
}
.bento-card {
  position: relative; border-radius: var(--radius-lg);
  background: var(--bg-white); overflow: hidden;
  border: 1px solid var(--border-light);
  transition: all .4s cubic-bezier(.34,1.56,.64,1);
  -webkit-transition: all .4s cubic-bezier(.34,1.56,.64,1);
}
.bento-card:hover {
  transform: translateY(-6px);
  -webkit-transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.card-glow {
  position: absolute; top: -1px; left: -1px; right: -1px; bottom: -1px;
  border-radius: var(--radius-lg); opacity: 0; z-index: -1;
  transition: opacity .4s; pointer-events: none;
}
.bento-card:hover .card-glow { opacity: 1; }
.card-glow-orange { background: linear-gradient(135deg, rgba(255,107,53,.08), rgba(245,158,11,.04)); }
.card-glow-green { background: linear-gradient(135deg, rgba(16,185,129,.08), rgba(52,211,153,.04)); }
.card-glow-purple { background: linear-gradient(135deg, rgba(139,92,246,.08), rgba(167,139,250,.04)); }
.card-glow-blue { background: linear-gradient(135deg, rgba(59,130,246,.08), rgba(96,165,250,.04)); }

.bento-content { padding: 36px 32px; position: relative; z-index: 1; }
.bento-xl { grid-row: span 2; }
.icon-circle {
  display: -webkit-inline-box; display: inline-flex;
  -webkit-box-align: center; align-items: center;
  -webkit-box-pack: center; justify-content: center;
  width: 52px; height: 52px; border-radius: 16px; font-size: 24px;
  margin-bottom: 20px;
}
.icon-coral { background: rgba(255,107,53,.1); }
.icon-green { background: rgba(16,185,129,.1); }
.icon-purple { background: rgba(139,92,246,.1); }
.icon-blue { background: rgba(59,130,246,.1); }
.bento-icon-lg { margin-bottom: 24px; }
.bento-icon-lg .icon-circle { width: 64px; height: 64px; font-size: 30px; border-radius: 20px; }
.bento-icon-wrap { margin-bottom: 16px; }
.bento-title { font-size: 22px; font-weight: 800; color: var(--text-primary); margin-bottom: 12px; }
.bento-desc { font-size: 15px; color: var(--text-secondary); line-height: 1.68; margin-bottom: 20px; }
.bento-desc-sm { font-size: 14px; color: var(--text-secondary); line-height: 1.65; margin-bottom: 16px; }
.bento-list { list-style: none; display: block; }
.bento-list li {
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  font-size: 14px; color: var(--text-secondary);
  margin-bottom: 10px;
}
.bento-list li:last-child { margin-bottom: 0; }
.bento-list li > *:first-child { margin-right: 10px; }
.list-bullet {
  width: 7px; height: 7px; border-radius: 50%; background: var(--coral);
  -webkit-box-flex: 0; flex: 0 0 auto;
}
.mini-tags {
  display: -webkit-box; display: flex;
  -webkit-flex-wrap: wrap; flex-wrap: wrap;
}
.mini-tags > *:not(:last-child) { margin-right: 8px; margin-bottom: 6px; }
.mtag {
  padding: 5px 14px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: var(--bg-cream); color: var(--text-muted);
  border: 1px solid var(--border-light);
}
.bento-full { grid-column: span 2; }
.bento-full-content {
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  /* gap 降级 */
}
.bento-full-content > *:not(:last-child) { margin-right: 36px; }
.bento-text-group { -webkit-box-flex: 1; flex: 1; }
.reminder-preview {
  display: -webkit-box; display: flex;
  -webkit-flex-wrap: nowrap; flex-wrap: nowrap;
  -webkit-box-flex: 0; flex: 0 0 auto;
}
.reminder-preview > *:not(:last-child) { margin-right: 12px; }
.rp-item {
  display: -webkit-box; display: flex;
  -webkit-box-orient: vertical; flex-direction: column;
  -webkit-box-align: center; align-items: center;
  -webkit-box-pack: center; justify-content: center;
  padding: 14px 18px; background: var(--bg-cream);
  border-radius: var(--radius-md); border: 1px solid var(--border-light);
  min-width: 110px;
}
.rp-icon { font-size: 22px; }
.rp-item span:nth-child(2) { font-size: 13px; font-weight: 600; color: var(--text-primary); }
.rp-time { font-size: 11px; color: var(--text-muted); }
.rp-feed .rp-time { color: var(--green); }
.rp-vaccine .rp-time { color: var(--coral); }
.rp-deworm .rp-time { color: var(--blue); }

/* ========== 使用流程 ========== */
.how-it-works {
  padding: 100px 0; background: var(--bg-white);
}
.steps-grid {
  display: -webkit-box; display: grid;
  grid-template-columns: repeat(4, 1fr);
  -moz-grid-column-gap: 24px; grid-column-gap: 24px;
  -moz-grid-row-gap: 24px; grid-row-gap: 24px;
  position: relative;
}
.step-card {
  text-align: center; padding: 36px 20px 28px;
  border-radius: var(--radius-lg); background: var(--bg-warm);
  border: 1px solid var(--border-light);
  position: relative; transition: all .35s ease;
}
.step-card:hover {
  transform: translateY(-4px);
  -webkit-transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(255,107,53,.2);
}
.step-num {
  position: absolute; top: 16px; left: 20px;
  font-size: 48px; font-weight: 900; color: rgba(28,25,23,.05);
  line-height: 1;
}
.step-icon-box {
  width: 72px; height: 72px; border-radius: 22px;
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  -webkit-box-pack: center; justify-content: center;
  font-size: 32px; margin: 0 auto 20px;
  transition: transform .3s ease;
  -webkit-transition: -webkit-transform .3s ease;
}
.step-card:hover .step-icon-box {
  transform: scale(1.08) rotate(-4deg);
  -webkit-transform: scale(1.08) rotate(-4deg);
}
.step-icon-1 { background: rgba(255,107,53,.1); }
.step-icon-2 { background: rgba(16,185,129,.1); }
.step-icon-3 { background: rgba(139,92,246,.1); }
.step-icon-4 { background: rgba(59,130,246,.1); }
.step-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 10px; color: var(--text-primary); }
.step-card p { font-size: 14px; color: var(--text-muted); line-height: 1.65; }
.step-line {
  position: absolute; top: 50%; right: -14px;
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--border-light);
  box-shadow: 0 0 0 3px var(--bg-white);
}
.step-card:last-child .step-line { display: none; }

/* ========== 用户评价 ========== */
.testimonials {
  padding: 100px 0; background: var(--bg-cream);
}
.testimonial-grid {
  display: -webkit-box; display: grid;
  grid-template-columns: repeat(2, 1fr);
  -moz-grid-column-gap: 20px; grid-column-gap: 20px;
  -moz-grid-row-gap: 20px; grid-row-gap: 20px;
}
.t-card {
  background: var(--bg-white); border-radius: var(--radius-lg);
  padding: 32px 28px; border: 1px solid var(--border-light);
  transition: all .35s ease; position: relative;
}
.t-card:hover {
  transform: translateY(-4px);
  -webkit-transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.t-card-featured {
  grid-column: span 2;
  background: linear-gradient(135deg, var(--bg-warm) 0%, var(--bg-cream) 100%);
  border-color: rgba(255,107,53,.15);
}
.t-quote-mark {
  font-size: 56px; font-weight: 900; line-height: 1;
  color: rgba(255,107,53,.15); font-family: Georgia, serif;
  margin-bottom: 4px;
}
.t-text {
  font-size: 16px; line-height: 1.72; color: var(--text-secondary);
  margin-bottom: 24px;
}
.t-author {
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  /* gap 降级 */
}
.t-author > *:not(:last-child) { margin-right: 14px; }
.t-avatar {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--bg-cream);
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  -webkit-box-pack: center; justify-content: center;
  font-size: 24px;
  border: 2px solid var(--border-light);
  -webkit-box-flex: 0; flex: 0 0 auto;
}
.t-meta {
  -webkit-box-flex: 1; flex: 1;
  display: -webkit-box; display: flex;
  -webkit-box-orient: vertical; flex-direction: column;
}
.t-name { font-size: 15px; font-weight: 700; color: var(--text-primary); }
.t-role { font-size: 13px; color: var(--text-muted); }
.t-rating { color: var(--orange); letter-spacing: 2px; font-size: 14px; }

/* ========== 下载区域 ========== */
.download-section {
  position: relative; padding: 100px 0; overflow: hidden;
  background: linear-gradient(160deg, var(--text-primary) 0%, #2d2926 50%, #1c1917 100%);
  padding-bottom: calc(60px + var(--safe-bottom));
}
.download-bg-shape {
  position: absolute; top: -200px; right: -200px;
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,107,53,.12) 0%, transparent 70%);
  filter: blur(60px); -webkit-filter: blur(60px);
}
.download-container { position: relative; z-index: 1; }
.download-layout {
  display: -webkit-box; display: grid;
  grid-template-columns: 1fr auto;
  -moz-grid-column-gap: 64px; grid-column-gap: 64px;
  -webkit-box-align: center; align-items: center;
}
.dl-title {
  font-size: 44px;
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 900; line-height: 1.2;
  color: #fff; margin-bottom: 20px;
}
.dl-title .gradient-text {
  background: linear-gradient(135deg, var(--coral-light) 0%, var(--orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text; animation: none;
}
.dl-desc { font-size: 16px; color: rgba(255,255,255,.6); line-height: 1.72; margin-bottom: 32px; }
.dl-steps {
  display: -webkit-box; display: flex;
  -webkit-box-orient: vertical; flex-direction: column;
}
.dl-steps > *:not(:last-child) { margin-bottom: 14px; }
.dl-step {
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  font-size: 15px; color: rgba(255,255,255,.75);
}
.dl-step > *:not(:last-child) { margin-right: 14px; }
.dl-step-num {
  width: 32px; height: 32px; border-radius: 50%;
  background: rgba(255,107,53,.2); color: var(--coral-light);
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  -webkit-box-pack: center; justify-content: center;
  font-size: 14px; font-weight: 700;
  -webkit-box-flex: 0; flex: 0 0 auto;
}
.dl-step strong { color: #fff; }

.qr-wrapper {
  position: relative; width: 220px; max-width: 100%;
  padding: 16px; background: #fff; border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.qr-border-glow {
  position: absolute; inset: -3px;
  border-radius: calc(var(--radius-lg) + 3px);
  z-index: -1; opacity: .6;
  /* conic-gradient 降级：不支持的浏览器用纯色边框 */
  background: conic-gradient(from 0deg, var(--coral), var(--orange), var(--green), var(--purple), var(--blue), var(--coral));
  animation: qr-spin 6s linear infinite;
  -webkit-animation: qr-spin 6s linear infinite;
}
/* conic-gradient 不支持时的降级样式 */
@supports not (background: conic-gradient(red, blue)) {
  .qr-border-glow {
    background: linear-gradient(135deg, var(--coral), var(--purple));
    animation: none;
  }
}
@keyframes qr-spin { to { transform: rotate(360deg); -webkit-transform: rotate(360deg); } }
.qr-img {
  width: 188px; height: 188px; border-radius: var(--radius-md);
  object-fit: cover;
}
.qr-scan-hint {
  display: -webkit-box; display: flex;
  -webkit-box-align: center; align-items: center;
  -webkit-box-pack: center; justify-content: center;
  margin-top: 10px; font-size: 13px; color: var(--text-muted); font-weight: 600;
}
.qr-scan-hint > *:not(:last-child) { margin-right: 6px; }
.scan-icon { font-size: 16px; }
.dl-note { text-align: center; margin-top: 16px; font-size: 13px; color: rgba(255,255,255,.4); }

/* ========== 页脚 ========== */
.footer {
  background: var(--text-primary); padding: 64px 0 0;
  color: rgba(255,255,255,.6);
  padding-bottom: calc(24px + var(--safe-bottom));
}
.footer-container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.footer-main {
  display: -webkit-box; display: grid;
  grid-template-columns: 1.2fr 1fr;
  -moz-grid-column-gap: 64px; grid-column-gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand-col { max-width: 340px; }
.footer-brand { font-size: 20px; font-weight: 800; color: #fff; display: block; margin-bottom: 8px; }
.footer-tagline { font-size: 14px; color: rgba(255,255,255,.4); margin-bottom: 24px; }
.footer-contact {
  display: -webkit-box; display: flex;
  -webkit-box-orient: vertical; flex-direction: column;
}
.footer-contact > *:not(:last-child) { margin-bottom: 10px; }
.footer-link-item {
  font-size: 14px; color: rgba(255,255,255,.5); transition: color .2s;
}
.footer-link-item:hover { color: var(--coral-light); }
.footer-cols {
  display: -webkit-box; display: grid;
  grid-template-columns: repeat(3, 1fr);
  -moz-grid-column-gap: 32px; grid-column-gap: 32px;
}
.f-col-title { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.f-col a {
  display: block; font-size: 14px; color: rgba(255,255,255,.45);
  padding: 5px 0; transition: color .2s;
}
.f-col a:hover { color: rgba(255,255,255,.8); }
.footer-bottom { padding: 24px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,.3); }

/* ========== 滚动动画 ========== */
.reveal-up {
  opacity: 0;
  transform: translateY(36px);
  -webkit-transform: translateY(36px);
  transition: opacity .7s cubic-bezier(.16,1,.3,1),
              transform .7s cubic-bezier(.16,1,.3,1);
  -webkit-transition: opacity .7s cubic-bezier(.16,1,.3,1),
                      -webkit-transform .7s cubic-bezier(.16,1,.3,1);
}
.reveal-up.visible {
  opacity: 1;
  transform: translateY(0);
  -webkit-transform: translateY(0);
}
.delay-1 { transition-delay: .12s; -webkit-transition-delay: .12s; }
.delay-2 { transition-delay: .24s; -webkit-transition-delay: .24s; }
.delay-3 { transition-delay: .36s; -webkit-transition-delay: .36s; }

/* ========== 响应式 ========== */

/* 平板 */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    -moz-column-gap: 48px; column-gap: 48px;
  }
  .hero-left { -webkit-box-ordinal-group: 1; order: 0; }
  .hero-right { display: none; }
  .phone-mockup { display: none; }
  .hero-actions {
    -webkit-box-pack: center; justify-content: center;
  }
  .hero-social-proof {
    -webkit-box-pack: center; justify-content: center;
  }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .bento-full-content {
    -webkit-box-orient: vertical; flex-direction: column;
    text-align: center;
  }
  .reminder-preview {
    -webkit-box-pack: center; justify-content: center;
  }
  .bento-full { grid-column: span 2; }
  .t-card-featured { grid-column: span 2; }
  .download-layout {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .dl-steps {
    -webkit-box-align: center; align-items: center;
  }
  .dl-right {
    display: -webkit-box; display: flex;
    -webkit-box-orient: vertical; flex-direction: column;
    -webkit-box-align: center; align-items: center;
  }
  .footer-main {
    grid-template-columns: 1fr;
    -moz-column-gap: 40px; column-gap: 40px;
  }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .step-line { display: none; }
}

/* 手机大屏 */
@media (max-width: 768px) {
  .nav-links, .nav-btn { display: none; }
  .nav-hamburger { display: -webkit-box; display: flex; }
  .nav-inner { padding: 14px 20px; }
  .hero {
    padding-top: 76px;
    min-height: auto;
    padding-bottom: 60px;
    /* 移动端用渐变背景替代手机模拟器的视觉效果 */
    background: linear-gradient(170deg, var(--bg-warm) 0%, var(--bg-cream) 35%, #fff5ee 65%, #fff 100%);
  }
  .scroll-indicator { display: none; }
  .hero-blob-1 { width: 300px; height: 300px; top: -80px; left: -120px; }
  .hero-blob-2 { width: 240px; height: 240px; top: 100px; right: -80px; opacity: .4; }
  .hero-blob-3 { display: none; }
  .hero-right, .phone-mockup { display: none; }
  .hero-left { max-width: 520px; margin: 0 auto; text-align: center; }
  .section-heading { font-size: 28px; }
  .heading-break { display: block; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-xl { grid-row: auto; }
  .bento-full { grid-column: auto; }
  .t-card-featured { grid-column: auto; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .stats-container {
    -webkit-flex-wrap: wrap; flex-wrap: wrap;
  }
  .stats-container > *:not(:last-child) { margin-right: 28px; margin-bottom: 16px; }
  .stat-divider { display: none; }
  .stat-block {
    -webkit-box-flex: 1; flex: 1;
    min-width: 120px;
  }
  .features, .how-it-works, .testimonials, .download-section { padding: 64px 0; }
  .steps-grid { grid-template-columns: 1fr; -moz-row-gap: 16px; row-gap: 16px; }
  .step-card { padding: 28px 20px 24px; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); }
  .phone-mockup { width: 260px; }
  .phone-frame { width: 240px; height: 492px; }
}

/* 手机小屏 */
@media (max-width: 480px) {
  .nav-inner { padding: 12px 16px; }
  .brand-text { font-size: 18px; }
  .hero-title { font-size: 28px; line-height: 1.2; }
  .hero-desc { font-size: 14px; margin-bottom: 28px; }
  .btn-primary { padding: 14px 24px; font-size: 14px; }
  .btn-secondary { padding: 12px 20px; font-size: 14px; }
  .bento-content { padding: 28px 20px; }
  .t-card { padding: 24px 18px; }
  .qr-wrapper { width: 190px; padding: 12px; }
  .qr-img { width: 166px; height: 166px; }
  .footer-cols { grid-template-columns: 1fr; -moz-row-gap: 24px; row-gap: 24px; }
  .section-container { padding: 0 16px; }
  .stats-container { padding: 0 16px; }
  .section-heading { font-size: 26px; }
  .hero-tag { font-size: 12px; padding: 6px 14px; }
  .hero-desc { font-size: 15px; }
  .bento-title { font-size: 19px; }
  .bento-desc, .bento-desc-sm { font-size: 13px; }
  .dl-title { font-size: 26px; }
  .dl-desc { font-size: 14px; }
  .dl-step { font-size: 14px; }
  .rp-item { padding: 10px 12px; min-width: 90px; }
  .rp-item span:nth-child(2) { font-size: 12px; }
  .rp-time { font-size: 10px; }
  .step-card h3 { font-size: 16px; }
  .step-card p { font-size: 13px; }
  .step-icon-box { width: 60px; height: 60px; font-size: 26px; }
  .t-text { font-size: 14px; }
  .t-name { font-size: 14px; }
  .t-role { font-size: 12px; }
  .social-proof { -webkit-box-orient: horizontal; flex-direction: row; -webkit-box-wrap: wrap; flex-wrap: wrap; }
  .proof-divider { display: none; }
  .hero-social-proof > *:nth-child(even) { margin-right: 0; }
}

/* 超小屏 */
@media (max-width: 360px) {
  .hero-title { font-size: 24px; }
  .hero-tag { font-size: 11px; padding: 5px 12px; }
  .qr-wrapper { width: 170px; padding: 10px; }
  .qr-img { width: 150px; height: 150px; }
  .btn-primary { padding: 12px 20px; font-size: 13px; }
  .btn-secondary { padding: 10px 18px; font-size: 13px; }
  .hero-title { font-size: 28px; }
  .bento-content { padding: 24px 16px; }
  .t-card { padding: 20px 16px; }
  .step-card { padding: 24px 16px 20px; }
}

/* 横屏手机优化 */
@media (max-width: 900px) and (orientation: landscape) and (max-height: 500px) {
  .hero { min-height: auto; padding-top: 76px; padding-bottom: 40px; }
  .features, .how-it-works, .testimonials, .download-section { padding: 48px 0; }
  .scroll-indicator { display: none; }
  .hero-right, .phone-mockup { display: none; }
}

/* 打印样式 */
@media print {
  .nav, .scroll-indicator, .hero-bg, .phone-glow,
  .download-bg-shape, .card-glow, .qr-border-glow {
    display: none !important;
  }
  .hero { min-height: auto; padding-top: 0; }
  body { background: #fff; color: #000; }
  .reveal-up { opacity: 1; transform: none; }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal-up { opacity: 1; transform: none; }
  .mh-fill { animation: none; width: 85%; }
}