/* ============================================
   悔不起 (TimePact) — 官网样式
   奶油治愈风 (Cream Healing)
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg: #FDF8F3;
  --white: #FFFFFF;
  --coral: #FF7B6B;
  --orange: #FF9F6B;
  --gradient: linear-gradient(135deg, #FF7B6B, #FF9F6B);
  --mint: #7DD3C0;
  --sky: #87CEEB;
  --lavender: #B8A9C9;
  --rose: #E8A5A5;
  --gold: #E6C88B;
  --amber: #FFB347;
  --success: #6BCB77;
  --error: #FF6B6B;
  --text-primary: #3D3D3D;
  --text-secondary: #6B6B6B;
  --text-tertiary: #9B9B9B;
  --card-bg: #FFFFFF;
  --soft-card-bg: #FFF5EE;
  --shadow: 0 2px 16px rgba(255, 123, 107, 0.08);
  --shadow-hover: 0 8px 32px rgba(255, 123, 107, 0.15);
  --radius: 20px;
  --radius-sm: 12px;
  --radius-btn: 16px;
  --max-width: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--coral);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--orange);
}

img {
  max-width: 100%;
  height: auto;
}

/* --- Container --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(253, 248, 243, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 123, 107, 0.08);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--coral);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--coral);
}

.btn-download-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  background: var(--gradient);
  color: #fff !important;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 14px;
  transition: all 0.3s;
}

.btn-download-nav:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255, 123, 107, 0.4);
  color: #fff !important;
}

/* --- Hero --- */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at 50% 0%, rgba(255, 123, 107, 0.06), transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  background: var(--soft-card-bg);
  border-radius: 100px;
  font-size: 13px;
  color: var(--coral);
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.3;
  margin-bottom: 16px;
}

.hero-slogan {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 500;
}

.hero-desc {
  font-size: 16px;
  color: var(--text-tertiary);
  max-width: 520px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: var(--gradient);
  color: #fff;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 16px;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 123, 107, 0.4);
  color: #fff;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: transparent;
  color: var(--coral);
  border: 2px solid var(--coral);
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
}

.btn-outline:hover {
  background: rgba(255, 123, 107, 0.06);
}

/* --- Hero Mockup --- */
.hero-mockup {
  margin-top: 60px;
  position: relative;
}

.hero-mockup img {
  max-width: 860px;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(255, 123, 107, 0.1);
}

/* --- Phone Mockup --- */
.phone-mockup {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.phone-screen {
  width: 240px;
  height: 460px;
  background: #fff;
  border-radius: 32px;
  box-shadow: 0 20px 60px rgba(255, 123, 107, 0.12);
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.phone-screen::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 6px;
  background: #E8E5DF;
  border-radius: 3px;
}

.phone-screen.right {
  margin-top: 40px;
}

.phone-statusbar {
  width: 100%;
  padding: 24px 8px 12px;
  text-align: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
}

.phone-card {
  width: 100%;
  background: linear-gradient(135deg, rgba(255, 123, 107, 0.08), rgba(255, 159, 107, 0.06));
  border-radius: 16px;
  padding: 16px;
  margin-top: 8px;
}

.phone-card.accent {
  background: linear-gradient(135deg, rgba(135, 206, 235, 0.1), rgba(125, 211, 192, 0.08));
}

.phone-card-badge {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(255, 123, 107, 0.15);
  color: var(--coral);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 12px;
}

.phone-card.accent .phone-card-badge {
  background: rgba(135, 206, 235, 0.2);
  color: #5BA4CF;
}

.phone-card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.phone-card-desc {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 14px;
}

.phone-card-countdown {
  font-size: 13px;
  font-weight: 600;
  color: var(--coral);
  margin-bottom: 10px;
}

.phone-card.accent .phone-card-countdown {
  color: #5BA4CF;
}

.phone-card-progress {
  width: 100%;
  height: 4px;
  background: rgba(0,0,0,0.06);
  border-radius: 2px;
  margin-bottom: 14px;
  overflow: hidden;
}

.phone-card-bar {
  height: 100%;
  width: 45%;
  background: var(--gradient);
  border-radius: 2px;
}

.phone-card-bar.green {
  width: 30%;
  background: linear-gradient(135deg, #7DD3C0, #6BCB77);
}

.phone-card-amount {
  font-size: 12px;
  color: var(--text-tertiary);
  text-align: right;
}

.phone-bottom-bar {
  width: 120px;
  height: 4px;
  background: #E8E5DF;
  border-radius: 2px;
  margin-top: auto;
  margin-bottom: 8px;
}

/* --- Sections --- */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-label {
  display: inline-block;
  padding: 4px 16px;
  background: var(--soft-card-bg);
  border-radius: 100px;
  font-size: 13px;
  color: var(--coral);
  font-weight: 600;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.section-header p {
  font-size: 16px;
  color: var(--text-tertiary);
  max-width: 500px;
  margin: 0 auto;
}

/* --- Features Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  transition: all 0.3s;
}

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

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}

.feature-icon.commit { background: rgba(255, 123, 107, 0.1); color: var(--coral); }
.feature-icon.send { background: rgba(135, 206, 235, 0.15); color: var(--sky); }
.feature-icon.social { background: rgba(184, 169, 201, 0.15); color: var(--lavender); }
.feature-icon.cost { background: rgba(230, 200, 139, 0.15); color: var(--gold); }
.feature-icon.safe { background: rgba(125, 211, 192, 0.15); color: var(--mint); }
.feature-icon.real { background: rgba(232, 165, 165, 0.15); color: var(--rose); }

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.7;
}

/* --- How It Works --- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  counter-reset: step;
}

.step-card {
  position: relative;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 36px 24px 28px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all 0.3s;
}

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

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-tertiary);
}

.step-arrow {
  position: absolute;
  right: -24px;
  top: 50%;
  color: var(--text-tertiary);
  font-size: 20px;
  transform: translateY(-50%);
}

/* --- Stats --- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  text-align: center;
}

.stat-item {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px 20px;
  box-shadow: var(--shadow);
}

.stat-value {
  font-size: 36px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-tertiary);
}

/* --- Categories --- */
.categories {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.category-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  background: var(--card-bg);
  border-radius: 100px;
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
  box-shadow: var(--shadow);
  transition: all 0.3s;
}

.category-tag:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.category-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.category-dot.weight { background: var(--mint); }
.category-dot.business { background: var(--gold); }
.category-dot.learn { background: var(--sky); }
.category-dot.emotion { background: var(--rose); }
.category-dot.other { background: var(--lavender); }

/* --- Testimonials / Commitment Levels --- */
.commit-levels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.level-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all 0.3s;
  border: 2px solid transparent;
}

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

.level-card.super { border-color: var(--coral); }
.level-card.high { border-color: var(--orange); }
.level-card.medium { border-color: var(--gold); }
.level-card.normal { border-color: var(--lavender); }

.level-amount {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.level-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.level-desc {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* --- CTA --- */
.cta {
  padding: 100px 0;
  text-align: center;
  position: relative;
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient);
  opacity: 0.04;
  pointer-events: none;
}

.cta h2 {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  margin-bottom: 12px;
}

.cta p {
  font-size: 16px;
  color: var(--text-tertiary);
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid rgba(255, 123, 107, 0.08);
  padding: 40px 0;
}

.footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  font-size: 15px;
  font-weight: 600;
  color: var(--coral);
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-tertiary);
}

.footer-links a:hover {
  color: var(--coral);
}

.footer-copy {
  font-size: 13px;
  color: var(--text-tertiary);
  width: 100%;
  text-align: center;
  margin-top: 8px;
}

/* --- Page Header (sub pages) --- */
.page-header {
  padding: 120px 0 60px;
  text-align: center;
}

.page-header h1 {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 700;
  color: var(--text-primary);
}

/* --- Download Page --- */
.download-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}

.download-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: all 0.3s;
  border: 2px solid transparent;
  position: relative;
}

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

.download-card.detected {
  border-color: var(--coral);
  box-shadow: 0 0 0 4px rgba(255, 123, 107, 0.12), var(--shadow-hover);
}

.download-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.download-icon.ios { background: rgba(135, 206, 235, 0.12); color: #5BA4CF; }
.download-icon.android { background: rgba(125, 211, 192, 0.12); color: #5BA894; }
.download-icon.harmony { background: rgba(255, 159, 107, 0.12); color: var(--orange); }

.download-card h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.download-card .version {
  font-size: 14px;
  color: var(--text-tertiary);
  margin-bottom: 24px;
}

/* Platform Buttons */
.btn-platform {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px 24px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 16px;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  color: #fff;
}

.btn-platform:hover {
  transform: translateY(-2px);
  color: #fff;
}

.btn-platform.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.ios-btn { background: linear-gradient(135deg, #5BA4CF, #87CEEB); }
.ios-btn:hover { box-shadow: 0 6px 20px rgba(91, 164, 207, 0.4); }

.android-btn { background: linear-gradient(135deg, #5BA894, #7DD3C0); }
.android-btn:hover { box-shadow: 0 6px 20px rgba(91, 168, 148, 0.4); }

.harmony-btn { background: var(--gradient); }
.harmony-btn:hover { box-shadow: 0 6px 20px rgba(255, 123, 107, 0.4); }

/* Install Tips */
.install-tips {
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-tertiary);
  text-align: left;
  border-top: 1px solid rgba(0,0,0,0.05);
  padding-top: 16px;
}

.install-tips details summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.install-tips details summary:hover {
  color: var(--coral);
}

.install-tips ol {
  padding-left: 18px;
  line-height: 2;
}

.install-tips p {
  text-align: center;
}

.download-note {
  text-align: center;
  margin-top: 40px;
  font-size: 14px;
  color: var(--text-tertiary);
}

/* --- QR Placeholder --- */
.qr-placeholder {
  display: inline-block;
  border-radius: 12px;
  overflow: hidden;
}

/* --- Privacy Page --- */
.policy-content {
  max-width: 760px;
  margin: 0 auto;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 40px 36px;
  box-shadow: var(--shadow);
}

.policy-content h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--coral);
  margin: 32px 0 12px;
}

.policy-content h2:first-child {
  margin-top: 0;
}

.policy-content p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 12px;
}

.policy-content .update-date {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 24px;
}

/* --- Mobile Nav Toggle --- */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--text-primary);
}

/* ============================================
   微信浏览器引导遮罩 (WeChat Guide Overlay)
   ============================================ */

#wechat-guide-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.wechat-guide-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* 指向右上角的箭头 */
.wechat-guide-arrow {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 2;
  animation: wechat-arrow-bounce 1.5s ease-in-out infinite;
}

@keyframes wechat-arrow-bounce {
  0%, 100% { transform: translate(0, 0); opacity: 1; }
  50%      { transform: translate(-6px, 6px); opacity: 0.7; }
}

/* 引导卡片 */
.wechat-guide-card {
  position: relative;
  z-index: 1;
  background: var(--card-bg);
  border-radius: 20px;
  padding: 36px 28px 28px;
  max-width: 360px;
  width: 100%;
  text-align: center;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
  animation: wechat-card-in 0.4s ease-out;
}

@keyframes wechat-card-in {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.wechat-guide-icon {
  color: var(--coral);
  margin-bottom: 16px;
  animation: wechat-pulse 2s ease-in-out infinite;
}

@keyframes wechat-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.08); }
}

.wechat-guide-card h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.wechat-guide-desc {
  font-size: 14px;
  color: var(--text-tertiary);
  margin-bottom: 20px;
  line-height: 1.6;
}

/* 操作步骤 */
.wechat-guide-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
  text-align: left;
}

.wechat-guide-step {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  background: var(--soft-card-bg);
  padding: 10px 14px;
  border-radius: 12px;
}

.step-dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.wechat-guide-step strong {
  color: var(--coral);
}

/* 复制按钮 */
.wechat-guide-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  background: var(--gradient);
  color: #fff;
  border: none;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  margin-bottom: 12px;
}

.wechat-guide-copy-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 123, 107, 0.4);
}

.wechat-guide-copy-btn:active {
  transform: translateY(0);
}

.wechat-guide-tip {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 20px;
  line-height: 1.5;
}

/* 关闭按钮 */
.wechat-guide-close {
  background: none;
  border: none;
  font-size: 13px;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 4px 12px;
  transition: color 0.2s;
}

.wechat-guide-close:hover {
  color: var(--text-secondary);
}

/* 复制成功 Toast */
.wechat-copy-toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  z-index: 10000;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.wechat-copy-toast.show {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(253, 248, 243, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid rgba(255, 123, 107, 0.08);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .section {
    padding: 60px 0;
  }

  .features-grid,
  .steps,
  .commit-levels {
    grid-template-columns: 1fr;
  }

  .step-arrow {
    display: none;
  }

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

  .footer-links {
    justify-content: center;
  }

  .policy-content {
    padding: 28px 20px;
  }

  .phone-mockup {
    gap: 20px;
  }

  .phone-screen {
    width: 160px;
    height: 340px;
    border-radius: 24px;
    padding: 0 12px;
  }

  .phone-screen.right {
    margin-top: 30px;
  }

  .phone-statusbar {
    padding: 20px 6px 8px;
    font-size: 10px;
  }

  .phone-card {
    padding: 12px;
    border-radius: 12px;
    margin-top: 4px;
  }

  .phone-card-title {
    font-size: 14px;
  }

  .phone-card-desc {
    font-size: 10px;
    margin-bottom: 10px;
  }

  .phone-card-countdown {
    font-size: 11px;
    margin-bottom: 8px;
  }

  .phone-card-amount {
    font-size: 10px;
  }
}