/* ===== 设计 Token（1:1 复用小程序欢迎页） ===== */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-gradient: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);

  --bg-gradient: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 40%, #eef2ff 100%);
  --glow: radial-gradient(ellipse 130% 100% at 50% 0%, rgba(99, 102, 241, 0.14) 0%, rgba(99, 102, 241, 0) 70%);

  --title: #0f172a;
  --text: #64748b;
  --text-2: #475569;
  --muted: #94a3b8;
  --border: rgba(226, 232, 240, 0.8);
  --card: #ffffff;

  --shadow-card: 0 16px 48px rgba(15, 23, 42, 0.09), 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-btn: 0 12px 32px rgba(79, 70, 229, 0.3);
  --radius-card: 20px;
  --radius-pill: 999px;

  --font: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', 'Segoe UI', Arial,
    Roboto, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft Yahei', sans-serif;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg-gradient);
  background-attachment: fixed;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img, svg { display: block; max-width: 100%; }
figure { margin: 0; }
button { font-family: inherit; cursor: pointer; }

.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 20px; }

/* ===== 通用按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 48px; padding: 0 28px;
  border: none; border-radius: var(--radius-pill);
  font-size: 16px; font-weight: 600; cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn-primary { background: var(--primary-gradient); color: #fff; box-shadow: var(--shadow-btn); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(79, 70, 229, 0.38); }
.btn-primary:active { transform: scale(0.98); }
.btn-ghost { background: rgba(255,255,255,0.7); color: var(--text-2); border: 1px solid var(--border); backdrop-filter: blur(8px); }
.btn-ghost:hover { background: #fff; color: var(--primary); border-color: rgba(99,102,241,0.3); }
.btn-lg { height: 56px; padding: 0 36px; font-size: 17px; }

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  padding: 12px 0;
  background: rgba(248, 250, 252, 0.8);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, box-shadow .25s, background .25s;
}
.site-header.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo-img { height: 34px; width: auto; display: block; }
.brand-name { font-size: 19px; font-weight: 700; color: var(--title); letter-spacing: -0.3px; }
.nav-menu { display: flex; gap: 28px; }
.nav-link { font-size: 15px; color: var(--text-2); font-weight: 500; transition: color .2s; position: relative; }
.nav-link::after {
  content: ''; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px;
  background: var(--primary-gradient); border-radius: 2px; transition: width .25s;
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { width: 100%; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 6px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--title); border-radius: 2px; transition: .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero { position: relative; padding: 70px 0 50px; overflow: hidden; }
.hero-glow {
  position: absolute; top: 0; left: 0; right: 0; height: 45%;
  background: var(--glow); pointer-events: none; z-index: 0;
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; gap: 48px; align-items: center;
  grid-template-columns: 1fr;
}
.hero-badge {
  display: inline-block; padding: 7px 16px; margin-bottom: 22px;
  background: rgba(99, 102, 241, 0.1); color: var(--primary-dark);
  border-radius: var(--radius-pill); font-size: 13px; font-weight: 600;
  border: 1px solid rgba(99, 102, 241, 0.18);
}
.hero-title {
  font-size: clamp(28px, 6vw, 46px); font-weight: 700; color: var(--title);
  line-height: 1.25; letter-spacing: -0.5px; margin-bottom: 18px;
}
.hero-subtitle { font-size: clamp(15px, 2.5vw, 18px); color: var(--text); margin-bottom: 30px; max-width: 540px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 28px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 22px; }
.hero-trust li { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-2); font-weight: 500; }
.trust-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary-gradient); box-shadow: 0 0 0 3px rgba(99,102,241,0.15); }

/* Hero 视觉区 */
.hero-visual { display: flex; justify-content: center; }

/* ===== 产品图卡片（复用欢迎页 guide-image-card 设计） ===== */
.image-card {
  background: var(--card); border-radius: 24px; padding: 12px;
  box-shadow: var(--shadow-card); border: 1px solid var(--border);
  overflow: hidden; transition: transform .3s ease, box-shadow .3s ease;
}
.image-card:hover { transform: translateY(-4px); box-shadow: 0 24px 60px rgba(15, 23, 42, 0.12); }
.product-image { display: block; width: 100%; height: auto; border-radius: 16px; }
.hero-visual .image-card { max-width: 300px; }

/* ===== 信任条 ===== */
.trust-bar { padding: 28px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: rgba(255,255,255,0.5); }

/* ===== 通用 Section ===== */
.section { padding: 72px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.section-head h2 { font-size: clamp(24px, 4.5vw, 36px); font-weight: 700; color: var(--title); line-height: 1.3; letter-spacing: -0.5px; margin-bottom: 14px; }
.section-desc { font-size: 16px; color: var(--text); }
.section-eyebrow { font-size: 12px; font-weight: 700; letter-spacing: 2px; color: var(--primary); margin-bottom: 10px; text-transform: uppercase; }

/* ===== 功能特性 ===== */
.feature-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.feature-card {
  background: var(--card); border-radius: var(--radius-card); padding: 28px 24px;
  box-shadow: var(--shadow-card); border: 1px solid var(--border);
  transition: transform .25s ease, box-shadow .25s ease;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: 0 24px 60px rgba(15, 23, 42, 0.12); }
.feature-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; color: #fff; }
.icon-couple { background: linear-gradient(135deg, #6366f1, #4f46e5); }
.icon-personal { background: linear-gradient(135deg, #818cf8, #6366f1); }
.icon-voice { background: linear-gradient(135deg, #a78bfa, #7c3aed); }
.icon-lab { background: linear-gradient(135deg, #c084fc, #9333ea); }
.feature-card h3 { font-size: 19px; font-weight: 700; color: var(--title); margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text); line-height: 1.6; }

/* ===== AI 区 ===== */
.ai-section { background: rgba(99, 102, 241, 0.03); }
.ai-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.ai-item {
  background: var(--card); border-radius: var(--radius-card); padding: 32px 26px;
  box-shadow: var(--shadow-card); border: 1px solid var(--border);
  position: relative; overflow: hidden; transition: transform .25s;
}
.ai-item::before { content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; background: var(--primary-gradient); opacity: 0; transition: opacity .25s; }
.ai-item:hover { transform: translateY(-4px); }
.ai-item:hover::before { opacity: 1; }
.ai-num { font-size: 14px; font-weight: 800; color: var(--primary); opacity: .5; margin-bottom: 14px; letter-spacing: 1px; }
.ai-item h3 { font-size: 19px; font-weight: 700; color: var(--title); margin-bottom: 10px; }
.ai-item p { font-size: 14px; color: var(--text); line-height: 1.7; }

/* AI 截图展示 */

/* ===== AI管家：对话批量创建待办 ===== */
.ai-butler-inner {
  display: grid; grid-template-columns: 1fr; gap: 40px; align-items: center;
  max-width: 1000px; margin: 0 auto;
}
.ai-butler-steps { display: flex; flex-direction: column; gap: 20px; }

/* ===== AI 智能助理聊天气泡 ===== */
.ai-chat-demo {
  background: #fff;
  border-radius: 20px;
  padding: 28px 22px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border);
  max-width: 420px;
  margin: 0 auto;
}
.ai-chat-header {
  font-size: 15px; font-weight: 700; color: var(--title);
  margin-bottom: 18px; text-align: center;
}
.chat-bubble-user, .chat-bubble-ai {
  padding: 12px 16px;
  border-radius: 14px;
  margin-bottom: 12px;
  font-size: 14px;
  line-height: 1.6;
}
.chat-bubble-user {
  background: linear-gradient(135deg, #eef2ff, #f5f3ff);
  border: 1px solid rgba(99,102,241,0.12);
  display: flex; align-items: flex-start; gap: 10px;
}
.chat-bubble-user p { color: var(--text-2); margin: 0; flex: 1; }
.chat-bubble-ai {
  background: rgba(99, 102, 241, 0.06);
  border: 1px solid rgba(99,102,241,0.08);
  margin-left: 12px;
}
.chat-bubble-ai p { color: var(--title); margin: 0 0 8px; font-weight: 600; }
.chat-num {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--primary-gradient);
  color: #fff;
  font-size: 12px; font-weight: 700;
  display: inline-flex;
  align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.chat-todo-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.chat-todo-list li {
  padding: 6px 0 6px 20px;
  font-size: 13px;
  color: var(--text);
  position: relative;
}
.chat-todo-list li::before {
  content: '✓';
  position: absolute; left: 0;
  color: #22c55e; font-size: 14px; font-weight: 700;
}
.chat-tip {
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}

.step-item {
  display: flex; align-items: flex-start; gap: 16px;
  background: var(--card); border-radius: 16px; padding: 24px;
  border: 1px solid var(--border); box-shadow: var(--shadow-card);
  transition: transform .25s ease;
}
.step-item:hover { transform: translateY(-4px); }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0;
  background: var(--primary-gradient); color: #fff;
  font-size: 14px; font-weight: 800;
}
.step-item h4 { font-size: 16px; font-weight: 700; color: var(--title); margin-bottom: 6px; }
.step-item p { font-size: 14px; color: var(--text); line-height: 1.7; }
.ai-butler-visual { display: flex; justify-content: center; }
.ai-butler-visual .image-card { max-width: 300px; }
@media (min-width: 768px) {
  .ai-butler-inner { grid-template-columns: 1.1fr 0.9fr; gap: 48px; }
  .ai-butler-visual { justify-content: flex-end; }
  .ai-butler-visual .image-card { max-width: 280px; }
}

/* ===== 权威背书推荐 ===== */
.reviews-section { background: rgba(99, 102, 241, 0.03); }
.reviews-grid {
  display: grid; grid-template-columns: 1fr; gap: 20px; max-width: 1000px; margin: 0 auto;
}
.review-card {
  background: var(--card); border-radius: var(--radius-card); padding: 28px;
  border: 1px solid var(--border); box-shadow: var(--shadow-card);
  transition: transform .25s ease, box-shadow .25s ease;
}
.review-card:hover { transform: translateY(-6px); box-shadow: 0 24px 60px rgba(15, 23, 42, 0.12); }
.review-badge {
  display: inline-block; padding: 4px 12px; border-radius: var(--radius-pill);
  font-size: 12px; font-weight: 600; margin-bottom: 14px;
  background: rgba(99, 102, 241, 0.1); color: var(--primary-dark);
}
.review-badge.expert { background: rgba(99, 102, 241, 0.1); color: var(--primary-dark); }
.review-badge.user { background: rgba(34, 197, 94, 0.1); color: #16a34a; }
.review-badge.media { background: rgba(251, 146, 60, 0.1); color: #ea580c; }
.review-card blockquote {
  font-size: 15px; color: var(--text-2); line-height: 1.8; margin-bottom: 18px;
  font-style: italic;
}
.review-card blockquote::before { content: '"'; font-size: 28px; color: var(--primary); line-height: 1; margin-right: 4px; }
.review-author { display: flex; align-items: center; gap: 12px; }
.review-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; color: #fff; flex-shrink: 0;
}
.review-avatar.expert { background: var(--primary-gradient); }
.review-avatar.user { background: linear-gradient(135deg, #22c55e, #16a34a); }
.review-avatar.media { background: linear-gradient(135deg, #fb923c, #ea580c); }
.review-info { display: flex; flex-direction: column; }
.review-name { font-size: 15px; font-weight: 700; color: var(--title); }
.review-role { font-size: 13px; color: var(--muted); }
.review-link {
  display: inline-flex; align-items: center; gap: 4px; margin-top: 14px;
  font-size: 13px; font-weight: 600; color: var(--primary);
  transition: color .2s;
}
.review-link:hover { color: var(--primary-dark); }
.review-link svg { width: 14px; height: 14px; }
@media (min-width: 768px) {
  .reviews-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }
}
.ai-showcase { display: grid; grid-template-columns: 1fr; gap: 24px; margin-top: 40px; }
.ai-shot { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.ai-shot .image-card { max-width: 280px; width: 100%; }
.ai-shot figcaption { font-size: 15px; font-weight: 600; color: var(--text-2); text-align: center; }

/* ===== 双人协作区 ===== */
.couple-inner { display: grid; grid-template-columns: 1fr; gap: 40px; align-items: center; }
.couple-text .section-eyebrow { margin-bottom: 8px; }
.couple-text h2 { font-size: clamp(24px, 4.5vw, 34px); font-weight: 700; color: var(--title); margin-bottom: 14px; line-height: 1.3; }
.couple-text .section-desc { margin-bottom: 22px; max-width: 460px; }
.couple-list li { display: flex; align-items: center; gap: 12px; padding: 10px 0; font-size: 15px; color: var(--text-2); border-bottom: 1px dashed var(--border); }
.couple-list li:last-child { border-bottom: none; }
.couple-list li::before { content: '✓'; width: 22px; height: 22px; border-radius: 50%; background: var(--primary-gradient); flex-shrink: 0; color: #fff; font-size: 12px; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; }

.couple-visual { display: flex; justify-content: center; }
.couple-visual .image-card { max-width: 300px; }

/* ===== CTA 区 ===== */
.cta-section { text-align: center; }
.cta-inner { max-width: 680px; }
.cta-section h2 { font-size: clamp(24px, 4.5vw, 36px); font-weight: 700; color: var(--title); margin-bottom: 14px; }
.cta-qr { display: flex; flex-direction: column; align-items: center; gap: 12px; margin: 32px 0 18px; }
.qr-img {
  width: 200px; height: 200px; border-radius: 20px; padding: 10px;
  background: #fff; box-shadow: var(--shadow-card); border: 1px solid var(--border);
  object-fit: contain;
}
.cta-qr-tip { font-size: 14px; color: var(--text-2); font-weight: 600; }
.cta-search { font-size: 15px; color: var(--text-2); margin-top: 8px; }
.cta-search strong { color: var(--primary-dark); }

/* ===== Footer ===== */
.site-footer { background: #0f172a; color: rgba(255,255,255,0.7); padding: 44px 0 30px; margin-top: 40px; }
.footer-inner { display: grid; gap: 22px; text-align: center; }
.footer-brand { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.footer-logo-img { 
  height: 36px; width: auto; 
  filter: brightness(0) invert(1);
  opacity: 0.95;
}
.footer-brand .brand-name { color: #fff; font-size: 20px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; justify-content: center; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.7); transition: color .2s; }
.footer-links a:hover { color: #fff; }
.footer-copy { font-size: 13px; color: rgba(255,255,255,0.4); }

/* ===== 滚动入场动画 ===== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== 响应式：平板 ===== */
@media (min-width: 768px) {
  .container { padding: 0 32px; }
  .hero { padding: 90px 0 70px; }
  .hero-inner { grid-template-columns: 1.1fr 0.9fr; gap: 56px; }
  .hero-visual { justify-content: flex-end; }
  .hero-visual .image-card { max-width: 320px; }
  .trust-inner { grid-template-columns: repeat(4, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .ai-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-showcase { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .couple-inner { grid-template-columns: 1fr 1fr; gap: 56px; }
  .footer-inner { grid-template-columns: 1fr auto 1fr; text-align: left; align-items: center; }
  .footer-brand { flex-direction: row; justify-content: flex-start; }
  .footer-links { justify-content: flex-end; }
}

/* ===== 响应式：桌面 ===== */
@media (min-width: 1024px) {
  .hero { padding: 110px 0 90px; }
  .section { padding: 96px 0; }
  .feature-grid { grid-template-columns: repeat(4, 1fr); }
  .nav-menu { display: flex !important; }
}

/* ===== 移动端菜单 ===== */
@media (max-width: 767px) {
  .nav-menu {
    position: fixed; top: 58px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: rgba(248,250,252,0.98);
    backdrop-filter: blur(14px); padding: 8px 20px 20px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%); transition: transform .3s ease; z-index: 99;
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-link { padding: 14px 0; border-bottom: 1px solid var(--border); }
  .nav-link::after { display: none; }
  .nav-toggle { display: flex; }
}

/* ===== 信任栏改造（去掉数字动画，用文字+对勾） ===== */
.trust-inner {
  display: flex; justify-content: center; align-items: center; gap: 32px; flex-wrap: wrap;
  padding: 28px 0;
}
.trust-item { display: flex; align-items: center; gap: 8px; }
.trust-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--primary-gradient); color: #fff; font-size: 12px; font-weight: 700;
  flex-shrink: 0;
}
.trust-label { font-size: 14px; font-weight: 500; color: var(--text-2); }
@media (max-width: 600px) {
  .trust-inner { gap: 16px; }
  .trust-label { font-size: 13px; }
}

/* ===== 竞品对比表格 ===== */
.compare-table-wrap {
  max-width: 900px; margin: 0 auto; overflow-x: auto;
  border-radius: 16px; box-shadow: var(--shadow-card); background: var(--card);
}
.compare-table {
  width: 100%; border-collapse: collapse; font-size: 14px; min-width: 600px;
}
.compare-table th, .compare-table td {
  padding: 14px 16px; text-align: left;
  border-bottom: 1px solid var(--border);
}
.compare-table thead th {
  background: rgba(99, 102, 241, 0.06); color: var(--title);
  font-weight: 600; font-size: 14px; white-space: nowrap;
}
.compare-table td.highlight, .compare-table th.highlight {
  background: rgba(99, 102, 241, 0.08); color: var(--primary-dark); font-weight: 600;
}
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table tbody tr:hover { background: rgba(99, 102, 241, 0.03); }
.compare-table td:first-child { font-weight: 600; color: var(--text-2); white-space: nowrap; }
@media (max-width: 600px) {
  .compare-table { font-size: 13px; }
  .compare-table th, .compare-table td { padding: 10px 12px; }
}

/* ===== 设计理念板块 ===== */
.philosophy-content {
  max-width: 900px; margin: 0 auto; display: grid;
  grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.philosophy-item {
  background: var(--card); border-radius: var(--radius-card); padding: 28px 24px;
  border: 1px solid var(--border); box-shadow: var(--shadow-card);
}
.philosophy-item h3 {
  font-size: 17px; color: var(--title); margin-bottom: 12px; font-weight: 700;
}
.philosophy-item p { font-size: 14px; color: var(--text); line-height: 1.8; }
@media (max-width: 768px) {
  .philosophy-content { grid-template-columns: 1fr; }
}

/* ===== SimilarLabs 徽章 ===== */
.similarlabs-badge {
  display: inline-block; margin-top: 28px; opacity: 0.85;
  transition: opacity .2s ease;
}
.similarlabs-badge:hover { opacity: 1; }
.similarlabs-badge img { display: block; }

/* ===== FAQ 区域 ===== */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  background: var(--card); border-radius: 16px; margin-bottom: 14px;
  border: 1px solid var(--border); overflow: hidden;
  transition: box-shadow .25s ease;
}
.faq-item[open] { box-shadow: 0 8px 28px rgba(15, 23, 42, 0.08); }
.faq-item summary {
  padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--title);
  cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;
  transition: color .2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+'; font-size: 22px; font-weight: 400; color: var(--primary); transition: transform .25s;
  flex-shrink: 0; margin-left: 12px;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--primary); }
.faq-answer { padding: 0 24px 20px; }
.faq-answer p { font-size: 15px; color: var(--text); line-height: 1.8; }

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}