/* ===== WPS Office - Teal Minimal Theme ===== */
:root {
  --primary: #0d9488; --primary-light: #ccfbf1; --primary-dark: #0f766e; --accent: #14b8a6;
  --bg: #fafaf9; --card-bg: #ffffff; --text: #1c1917; --text-light: #78716c;
  --border: #e7e5e4; --shadow: 0 2px 12px rgba(0,0,0,0.04); --radius: 6px; --max-width: 1100px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.7;
}
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 32px; }
header { background: rgba(250,250,249,0.95); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
nav { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.logo { display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 600; color: var(--text); text-decoration: none; letter-spacing: -0.5px; }
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a { text-decoration: none; color: var(--text-light); font-size: 14px; font-weight: 400; padding: 4px 0; border-bottom: 1px solid transparent; transition: all 0.3s; }
.nav-links a:hover { color: var(--primary); border-bottom-color: var(--primary-light); }
.nav-links a.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 500; }
.hero { padding: 140px 0 100px; text-align: center; }
.hero h1 { font-size: 64px; font-weight: 300; line-height: 1.1; margin-bottom: 24px; color: var(--text); letter-spacing: -2px; }
.hero h1 strong { font-weight: 600; color: var(--primary); }
.hero p { font-size: 18px; color: var(--text-light); max-width: 520px; margin: 0 auto 48px; line-height: 1.8; font-weight: 300; }
.btn-primary { display: inline-flex; align-items: center; gap: 10px; background: var(--primary); color: #fff; padding: 16px 36px; border-radius: 100px; font-size: 15px; font-weight: 500; border: none; cursor: pointer; text-decoration: none; transition: all 0.3s; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-secondary { display: inline-flex; align-items: center; gap: 8px; background: transparent; color: var(--text-light); padding: 14px 28px; border-radius: 100px; font-size: 14px; font-weight: 400; border: 1px solid var(--border); cursor: pointer; text-decoration: none; transition: all 0.3s; margin-left: 16px; }
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }
.section-divider { height: 1px; background: var(--border); max-width: 60px; margin: 0 auto 60px; }
section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 80px; }
.section-header h2 { font-size: 32px; font-weight: 300; margin-bottom: 16px; letter-spacing: -1px; }
.section-header h2 strong { font-weight: 600; }
.section-header p { font-size: 16px; color: var(--text-light); font-weight: 300; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.feature-card { padding: 8px; transition: all 0.4s; }
.feature-card:hover { transform: translateY(-4px); }
.feature-icon { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; margin-bottom: 24px; color: var(--primary); }
.feature-card h3 { font-size: 17px; font-weight: 500; margin-bottom: 12px; }
.feature-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; font-weight: 300; }
.platforms { background: #f5f5f4; }
.platform-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.platform-card { background: var(--card-bg); border-radius: var(--radius); padding: 36px 24px; text-align: center; box-shadow: var(--shadow); transition: all 0.3s; }
.platform-card:hover { box-shadow: 0 8px 25px rgba(0,0,0,0.08); }
.platform-card svg { margin-bottom: 16px; }
.platform-card h4 { font-size: 15px; font-weight: 500; margin-bottom: 8px; }
.platform-card p { font-size: 13px; color: var(--text-light); margin-bottom: 18px; font-weight: 300; }
.btn-download { display: inline-flex; align-items: center; gap: 6px; background: var(--primary); color: #fff; padding: 10px 22px; border-radius: 100px; font-size: 13px; font-weight: 500; border: none; cursor: pointer; transition: all 0.3s; }
.btn-download:hover { background: var(--primary-dark); }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; margin-bottom: 100px; }
.detail-grid:last-child { margin-bottom: 0; }
.detail-content h3 { font-size: 26px; font-weight: 300; margin-bottom: 20px; letter-spacing: -0.5px; }
.detail-content h3 strong { font-weight: 600; }
.detail-content p { color: var(--text-light); line-height: 1.9; margin-bottom: 14px; font-weight: 300; }
.detail-visual { background: var(--primary-light); border-radius: 50%; padding: 40px; display: flex; align-items: center; justify-content: center; min-height: 320px; max-width: 320px; margin: 0 auto; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.review-card { padding: 32px 0; border-top: 1px solid var(--border); }
.stars { color: #f59e0b; font-size: 14px; margin-bottom: 16px; letter-spacing: 3px; }
.review-card p { font-size: 15px; color: var(--text-light); line-height: 1.8; margin-bottom: 20px; font-weight: 300; font-style: italic; }
.reviewer { display: flex; align-items: center; gap: 12px; }
.reviewer-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--primary); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 500; font-size: 13px; }
.reviewer-name { font-weight: 500; font-size: 14px; } .reviewer-role { font-size: 12px; color: var(--text-light); font-weight: 300; }
.stats-bar { padding: 80px 0; text-align: center; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 60px; text-align: center; }
.stat-number { font-size: 48px; font-weight: 200; color: var(--primary); letter-spacing: -2px; }
.stat-label { font-size: 13px; color: var(--text-light); margin-top: 12px; font-weight: 300; letter-spacing: 1px; text-transform: uppercase; }
.comparison-table { width: 100%; border-collapse: collapse; }
.comparison-table th { padding: 16px 24px; text-align: left; font-weight: 500; border-bottom: 2px solid var(--text); font-size: 14px; }
.comparison-table td { padding: 16px 24px; border-bottom: 1px solid var(--border); }
.comparison-table tr:last-child td { border-bottom: 2px solid var(--text); }
.check { color: var(--primary); font-weight: 500; } .cross { color: #d6d3d1; }
.faq-item { border-bottom: 1px solid var(--border); margin-bottom: 0; }
.faq-question { padding: 24px 0; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-weight: 400; font-size: 16px; transition: color 0.3s; }
.faq-question:hover { color: var(--primary); }
.faq-answer { padding: 0 0 24px; color: var(--text-light); line-height: 1.8; font-size: 14px; font-weight: 300; }
footer { border-top: 1px solid var(--border); padding: 48px 0; text-align: center; color: var(--text-light); font-size: 12px; font-weight: 300; }
footer p { margin-bottom: 6px; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@media (max-width: 768px) {
  .hero h1 { font-size: 40px; } .features-grid { grid-template-columns: 1fr; gap: 32px; }
  .platform-grid { grid-template-columns: repeat(2, 1fr); } .review-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .detail-grid { grid-template-columns: 1fr; gap: 40px; margin-bottom: 60px; }
}