:root {
  --primary: #0b6b4f;
  --primary-light: #14846a;
  --primary-dark: #084c38;
  --secondary: #d4a643;
  --secondary-light: #e8c878;
  --dark: #0c2d26;
  --bg: #f6f5f1;
  --bg-card: #ffffff;
  --text: #1d2b28;
  --text-muted: #6b7a76;
  --border: #e5e0d8;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 10px rgba(8, 45, 34, 0.06);
  --shadow-md: 0 8px 28px rgba(8, 45, 34, 0.08);
  --shadow-lg: 0 18px 48px rgba(8, 45, 34, 0.13);
  --transition: all 0.3s ease;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); color: var(--text); background-color: var(--bg); line-height: 1.7; font-size: 16px; overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
.container { max-width: 1240px; padding-left: 24px; padding-right: 24px; }
.section-pad { padding: 88px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head .eyebrow { display: inline-block; padding: 6px 18px; background: rgba(11, 107, 79, 0.08); color: var(--primary); border-radius: 40px; font-size: 14px; font-weight: 600; letter-spacing: 1px; margin-bottom: 14px; }
.section-head h2 { font-size: 34px; font-weight: 800; color: var(--dark); margin-bottom: 12px; line-height: 1.3; }
.section-head p { color: var(--text-muted); font-size: 16px; line-height: 1.8; }

/* 按钮 */
.btn { border-radius: 50px; font-weight: 600; padding: 10px 28px; border: 2px solid transparent; transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 4px 18px rgba(11, 107, 79, 0.25); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(11, 107, 79, 0.3); color: #fff; }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.7); }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.15); color: #fff; border-color: #fff; transform: translateY(-2px); }
.btn-secondary { background: var(--secondary); color: #1d2b28; border-color: var(--secondary); box-shadow: 0 4px 18px rgba(212, 166, 67, 0.3); }
.btn-secondary:hover { background: var(--secondary-light); border-color: var(--secondary-light); transform: translateY(-2px); color: #1d2b28; }
.btn-lg { padding: 14px 40px; font-size: 17px; }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(11, 107, 79, 0.2); }

/* 导航 */
.site-nav { position: sticky; top: 0; z-index: 1000; padding: 18px 0; background: rgba(246, 245, 241, 0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid rgba(229, 224, 216, 0.7); }
.nav-card { display: flex; align-items: center; justify-content: space-between; background: var(--bg-card); border-radius: var(--radius-lg); padding: 12px 28px; box-shadow: var(--shadow-md); border: 1px solid rgba(229, 224, 216, 0.5); }
.site-logo { font-size: 18px; font-weight: 800; color: var(--primary-dark); display: flex; align-items: center; gap: 10px; letter-spacing: 0.5px; }
.site-logo i { color: var(--secondary); font-size: 22px; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-link { padding: 8px 18px; border-radius: 40px; font-size: 15px; font-weight: 500; color: var(--text); }
.nav-link:hover { background: rgba(11, 107, 79, 0.08); color: var(--primary); }
.nav-link.active { background: var(--primary); color: #fff; }
.nav-btn { padding: 8px 24px; border-radius: 40px; background: var(--secondary); color: #1d2b28; font-weight: 600; font-size: 15px; border: none; }
.nav-btn:hover { background: var(--secondary-light); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(212, 166, 67, 0.3); color: #1d2b28; }
.nav-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--primary-dark); cursor: pointer; padding: 6px 10px; border-radius: 10px; }
.nav-toggle:hover { background: rgba(11, 107, 79, 0.08); }
.mobile-nav { display: none; flex-direction: column; gap: 4px; padding: 16px 20px; background: var(--bg-card); border-radius: var(--radius-lg); margin-top: 12px; box-shadow: var(--shadow-md); }
.mobile-nav.show { display: flex; }
.mobile-nav a { padding: 12px 16px; border-radius: 12px; font-size: 15px; font-weight: 500; color: var(--text); }
.mobile-nav a:hover { background: rgba(11, 107, 79, 0.08); color: var(--primary); }
.mobile-nav a.active { background: var(--primary); color: #fff; }

/* Hero */
.hero { position: relative; background: var(--dark); min-height: 720px; display: flex; align-items: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0.55; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(115deg, rgba(8, 45, 34, 0.92) 0%, rgba(8, 45, 34, 0.65) 45%, rgba(11, 107, 79, 0.4) 100%); }
.hero-content { position: relative; z-index: 2; padding: 140px 0 110px; color: #fff; max-width: 820px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 22px; background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.25); border-radius: 50px; font-size: 14px; font-weight: 600; letter-spacing: 0.5px; margin-bottom: 24px; backdrop-filter: blur(4px); }
.hero-title { font-size: 44px; font-weight: 900; line-height: 1.25; margin-bottom: 22px; letter-spacing: 0.5px; }
.hero-title span { color: var(--secondary-light); }
.hero-desc { font-size: 18px; line-height: 1.9; color: rgba(255, 255, 255, 0.88); margin-bottom: 34px; max-width: 640px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
.stat-item { display: flex; flex-direction: column; }
.stat-num { font-size: 34px; font-weight: 800; color: var(--secondary-light); line-height: 1.2; }
.stat-label { font-size: 14px; color: rgba(255, 255, 255, 0.7); }
.hero-countdown-bar { position: absolute; bottom: 0; left: 0; right: 0; z-index: 3; background: rgba(255, 255, 255, 0.12); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-top: 1px solid rgba(255, 255, 255, 0.18); }
.hero-countdown-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 16px 0; flex-wrap: wrap; }
.countdown-text { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 15px; font-weight: 500; }
.countdown-text i { color: var(--secondary-light); }
.countdown-time { font-family: 'Courier New', monospace; font-size: 22px; font-weight: 700; color: #fff; background: rgba(8, 45, 34, 0.4); padding: 6px 18px; border-radius: 10px; letter-spacing: 2px; }
.countdown-actions { display: flex; gap: 12px; }
.countdown-actions .btn { padding: 8px 22px; font-size: 14px; }

/* 数据指标条 */
.stats-bar { background: var(--bg-card); border-bottom: 1px solid var(--border); padding: 32px 0; }
.stats-grid { display: flex; justify-content: space-around; gap: 24px; flex-wrap: wrap; }
.stats-grid .stat-card { text-align: center; padding: 8px 20px; }
.stats-grid .stat-card .num { font-size: 30px; font-weight: 800; color: var(--primary); }
.stats-grid .stat-card .label { font-size: 14px; color: var(--text-muted); margin-top: 4px; }

/* 分类入口 */
.categories { background: var(--bg); }
.category-card { display: block; padding: 32px 26px; background: var(--bg-card); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid rgba(229, 224, 216, 0.6); transition: var(--transition); text-align: center; height: 100%; }
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(11, 107, 79, 0.2); }
.category-icon { width: 72px; height: 72px; border-radius: 20px; background: linear-gradient(145deg, rgba(11, 107, 79, 0.1), rgba(212, 166, 67, 0.1)); display: flex; align-items: center; justify-content: center; font-size: 28px; color: var(--primary); margin: 0 auto 20px; transition: var(--transition); }
.category-card:hover .category-icon { background: var(--primary); color: #fff; }
.category-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; color: var(--dark); }
.category-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* 资源列表 */
.featured { background: var(--bg-card); }
.featured-card { background: var(--bg); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid rgba(229, 224, 216, 0.5); transition: var(--transition); height: 100%; }
.featured-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.card-img { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.featured-card:hover .card-img img { transform: scale(1.05); }
.card-tag { position: absolute; top: 14px; left: 14px; background: rgba(11, 107, 79, 0.9); color: #fff; padding: 4px 16px; border-radius: 30px; font-size: 13px; font-weight: 600; backdrop-filter: blur(4px); }
.card-body { padding: 24px 24px 20px; }
.card-body h3 { font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.card-body p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 16px; }
.card-meta { display: flex; gap: 18px; font-size: 13px; color: var(--text-muted); border-top: 1px solid rgba(229, 224, 216, 0.7); padding-top: 14px; }
.card-meta i { color: var(--secondary); }

/* 优惠阶梯 */
.pricing { background: var(--dark); position: relative; overflow: hidden; }
.pricing::before { content: ''; position: absolute; top: -100px; right: -100px; width: 300px; height: 300px; background: radial-gradient(circle, rgba(11, 107, 79, 0.4), transparent 70%); border-radius: 50%; }
.pricing .section-head h2 { color: #fff; }
.pricing .section-head p { color: rgba(255, 255, 255, 0.7); }
.price-card { background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.14); border-radius: var(--radius-lg); padding: 36px 30px; text-align: center; color: #fff; backdrop-filter: blur(8px); transition: var(--transition); height: 100%; }
.price-card:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-6px); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3); }
.price-card.highlight { background: rgba(212, 166, 67, 0.15); border-color: rgba(212, 166, 67, 0.5); }
.price-card .plan-icon { font-size: 36px; color: var(--secondary-light); margin-bottom: 16px; }
.price-card h3 { font-size: 21px; font-weight: 700; margin-bottom: 14px; }
.price-card .price-value { font-size: 32px; font-weight: 800; color: var(--secondary-light); margin-bottom: 20px; }
.price-card .price-value small { font-size: 14px; font-weight: 400; color: rgba(255, 255, 255, 0.6); }
.price-card ul { text-align: left; padding: 0; margin: 0 0 26px; }
.price-card ul li { padding: 8px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.08); font-size: 15px; color: rgba(255, 255, 255, 0.85); display: flex; align-items: center; gap: 10px; }
.price-card ul li i { color: var(--secondary-light); font-size: 13px; }

/* 资讯区 */
.news { background: var(--bg); }
.news-main h2 { font-size: 28px; font-weight: 800; color: var(--dark); margin-bottom: 8px; }
.news-main .sub { color: var(--text-muted); margin-bottom: 28px; font-size: 15px; }
.news-list { display: flex; flex-direction: column; }
.news-item { display: flex; align-items: center; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--border); transition: var(--transition); }
.news-item:last-child { border-bottom: none; }
.news-item:hover { padding-left: 6px; }
.news-item .news-tag { background: rgba(11, 107, 79, 0.08); color: var(--primary); padding: 3px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.news-item .news-title { font-size: 16px; font-weight: 500; color: var(--text); flex: 1; }
.news-item .news-title:hover { color: var(--primary); }
.news-item .news-date { font-size: 13px; color: var(--text-muted); white-space: nowrap; }
.news-sidebar { background: var(--bg-card); border-radius: var(--radius-lg); padding: 30px; box-shadow: var(--shadow-sm); border: 1px solid rgba(229, 224, 216, 0.5); }
.news-sidebar h3 { font-size: 18px; font-weight: 700; color: var(--dark); margin-bottom: 20px; position: relative; padding-bottom: 12px; }
.news-sidebar h3::after { content: ''; position: absolute; bottom: 0; left: 0; width: 40px; height: 3px; background: var(--secondary); border-radius: 10px; }
.hot-list { counter-reset: hot; }
.hot-list li { counter-increment: hot; padding: 12px 0; border-bottom: 1px dashed var(--border); font-size: 15px; color: var(--text); display: flex; align-items: center; gap: 12px; }
.hot-list li::before { content: counter(hot); width: 26px; height: 26px; border-radius: 8px; background: rgba(11, 107, 79, 0.08); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; flex-shrink: 0; }
.hot-list li:nth-child(-n+3)::before { background: var(--secondary); color: #1d2b28; }
.hot-list li:last-child { border-bottom: none; }

/* 观点解读 */
.insights { background: var(--bg-card); }
.insight-card { background: var(--bg); border-radius: var(--radius-lg); padding: 32px 28px; border-left: 4px solid var(--secondary); box-shadow: var(--shadow-sm); height: 100%; }
.insight-card i { font-size: 30px; color: var(--secondary); margin-bottom: 16px; opacity: 0.7; }
.insight-card p { font-size: 15px; color: var(--text); line-height: 1.85; margin-bottom: 18px; font-style: normal; }
.insight-card cite { font-size: 14px; color: var(--text-muted); font-style: normal; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.insight-card cite::before { content: ''; width: 24px; height: 2px; background: var(--border); }

/* FAQ */
.faq-section { background: var(--bg); }
.faq-item { background: var(--bg-card); border-radius: var(--radius); padding: 26px 28px; box-shadow: var(--shadow-sm); border: 1px solid rgba(229, 224, 216, 0.5); height: 100%; transition: var(--transition); }
.faq-item:hover { box-shadow: var(--shadow-md); border-color: rgba(11, 107, 79, 0.15); }
.faq-item h3 { font-size: 16px; font-weight: 700; color: var(--dark); margin-bottom: 10px; display: flex; align-items: flex-start; gap: 10px; }
.faq-item h3 i { color: var(--primary); font-size: 14px; margin-top: 5px; }
.faq-item p { font-size: 14px; color: var(--text-muted); line-height: 1.8; }

/* CTA 社群 */
.join-section { background: var(--dark); position: relative; overflow: hidden; }
.join-section::before { content: ''; position: absolute; bottom: -120px; left: -120px; width: 400px; height: 400px; background: radial-gradient(circle, rgba(11, 107, 79, 0.5), transparent 70%); border-radius: 50%; }
.join-section::after { content: ''; position: absolute; top: -80px; right: -80px; width: 250px; height: 250px; background: radial-gradient(circle, rgba(212, 166, 67, 0.3), transparent 70%); border-radius: 50%; }
.join-card { position: relative; z-index: 2; text-align: center; max-width: 720px; margin: 0 auto; color: #fff; padding: 40px 20px; }
.join-card h2 { font-size: 34px; font-weight: 800; margin-bottom: 18px; }
.join-card h2 span { color: var(--secondary-light); }
.join-card p { font-size: 17px; color: rgba(255, 255, 255, 0.8); line-height: 1.9; margin-bottom: 34px; }
.join-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 32px; }
.join-note { font-size: 14px; color: rgba(255, 255, 255, 0.5); display: flex; align-items: center; justify-content: center; gap: 8px; }

/* Footer */
.site-footer { background: #0a221d; color: rgba(255, 255, 255, 0.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
.footer-brand .footer-logo { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.footer-brand .footer-logo i { color: var(--secondary); }
.footer-brand p { font-size: 14px; line-height: 1.9; max-width: 360px; }
.footer-links h4, .footer-contact h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; }
.footer-links a { display: block; padding: 6px 0; font-size: 14px; color: rgba(255, 255, 255, 0.6); }
.footer-links a:hover { color: var(--secondary-light); padding-left: 4px; }
.footer-contact p { font-size: 14px; line-height: 1.9; }
.footer-contact i { color: var(--secondary); margin-right: 8px; }
.footer-bottom { padding: 24px 0; font-size: 13px; color: rgba(255, 255, 255, 0.4); text-align: center; }

/* 响应式 */
@media (max-width: 992px) {
  .section-pad { padding: 64px 0; }
  .hero { min-height: 600px; }
  .hero-title { font-size: 34px; }
  .hero-desc { font-size: 16px; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  .section-pad { padding: 48px 0; }
  .section-head { margin-bottom: 36px; }
  .section-head h2 { font-size: 26px; }
  .hero { min-height: 520px; }
  .hero-title { font-size: 26px; }
  .hero-desc { font-size: 15px; }
  .hero-content { padding: 100px 0 120px; }
  .hero-stats { gap: 20px; }
  .stat-num { font-size: 26px; }
  .hero-countdown-inner { flex-direction: column; padding: 14px 0; text-align: center; }
  .countdown-actions .btn { font-size: 13px; padding: 6px 14px; }
  .stats-grid { gap: 12px; }
  .stats-grid .stat-card .num { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .price-card { margin-bottom: 16px; }
  .news-item { flex-wrap: wrap; gap: 8px; }
  .news-item .news-date { display: none; }
}
@media (max-width: 520px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .hero-title { font-size: 22px; }
  .hero-desc { font-size: 14px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-stats { gap: 16px; justify-content: space-between; width: 100%; }
  .stat-num { font-size: 22px; }
  .stat-label { font-size: 12px; }
  .section-head h2 { font-size: 24px; }
  .join-card h2 { font-size: 26px; }
  .join-actions .btn { width: 100%; justify-content: center; }
  .site-logo { font-size: 15px; }
  .nav-card { padding: 10px 16px; }
}