*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
:root {
  --coral: #E85D3D;
  --teal: #1F7A6B;
  --lemon: #F5B82E;
  --ink: #2C3A3A;
  --bg: #FAF7F2;
  --card: #FFFFFF;
  --soft: #F0EAE1;
  --mint: #E8F2EF;
  --shadow-sm: 0 2px 8px rgba(44,58,58,0.05);
  --shadow-md: 0 10px 30px rgba(44,58,58,0.09);
  --radius: 14px;
}
::selection { background: var(--lemon); color: var(--ink); }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #D8CFC4; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--coral); }
body { font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif; overflow-x:hidden; background: var(--bg); color: var(--ink); line-height: 1.6; -webkit-font-smoothing: antialiased; }

/* 核心布局 */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; background: var(--bg); }
.section:nth-child(even) { background: var(--soft); }

/* 导航 */
.site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(250,247,242,0.92); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid rgba(44,58,58,0.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.logo { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 1.3rem; text-decoration: none; color: var(--ink); letter-spacing: -0.02em; }
.logo-icon { width: 40px; height: 40px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; background: linear-gradient(135deg, var(--coral) 0%, #F07B5A 100%); color: #fff; box-shadow: 0 4px 14px rgba(232,93,61,0.3); }
.main-nav { display: flex; align-items: center; gap: 28px; list-style: none; }
.main-nav a { text-decoration: none; font-size: 0.9rem; font-weight: 500; color: var(--ink); position: relative; padding: 4px 0; transition: color 0.2s ease; }
.main-nav a::after { content: ''; position: absolute; left: 0; bottom: -2px; width: 0; height: 2px; background: var(--coral); border-radius: 1px; transition: width 0.3s ease; }
.main-nav a:hover { color: var(--coral); }
.main-nav a:hover::after { width: 100%; }
.nav-cta { padding: 10px 24px !important; border-radius: 100px !important; background: var(--coral) !important; color: #fff !important; font-weight: 600 !important; margin-left: 8px; box-shadow: 0 4px 14px rgba(232,93,61,0.25); transition: all 0.25s ease !important; }
.nav-cta:hover { background: #D4502F !important; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(232,93,61,0.35); }
.nav-cta::after { display: none !important; }
.menu-toggle { display: none; width: 44px; height: 44px; border: none; background: transparent; cursor: pointer; position: relative; border-radius: 10px; }
.menu-toggle::before, .menu-toggle::after { content: ''; position: absolute; left: 12px; width: 20px; height: 2px; background: var(--ink); transition: 0.3s ease; border-radius: 2px; }
.menu-toggle::before { top: 16px; box-shadow: 0 6px 0 var(--ink); }
.menu-toggle::after { top: 28px; }
.menu-toggle.open::before { box-shadow: none; transform: rotate(45deg); top: 21px; }
.menu-toggle.open::after { transform: rotate(-45deg); top: 21px; }

/* 首页Hero */
.hero { min-height: 80vh; display: flex; align-items: center; position: relative; background: radial-gradient(ellipse at 85% 20%, rgba(245,184,46,0.14) 0%, transparent 50%), radial-gradient(ellipse at 10% 85%, rgba(31,122,107,0.08) 0%, transparent 45%), var(--bg); overflow: hidden; }
.hero::before { content: '111195'; position: absolute; right: -40px; bottom: 8%; font-size: 13rem; font-weight: 900; color: rgba(232,93,61,0.04); line-height: 1; letter-spacing: -0.05em; z-index: 0; user-select: none; pointer-events: none; }
.hero::after { content: ''; position: absolute; top: 24%; right: 6%; width: 320px; height: 320px; border-radius: 50%; border: 2px dashed rgba(232,93,61,0.15); z-index: 0; animation: hero-spin 40s linear infinite; pointer-events: none; }
@keyframes hero-spin { to { transform: rotate(360deg); } }
.hero-content { max-width: 680px; z-index: 1; }
.hero-eyebrow { display: inline-block; font-size: 0.85rem; font-weight: 700; letter-spacing: 1.5px; padding: 6px 20px; border-radius: 100px; background: var(--mint); color: var(--teal); margin-bottom: 22px; box-shadow: inset 0 0 0 1px rgba(31,122,107,0.08); }
.hero h1 { font-size: clamp(2.4rem, 5vw, 3.4rem); line-height: 1.15; margin-bottom: 20px; font-weight: 800; letter-spacing: -0.03em; }
.hero h1 .text-accent { color: var(--coral); position: relative; white-space: nowrap; }
.hero h1 .text-accent::after { content: ''; position: absolute; bottom: 8px; left: 0; width: 100%; height: 8px; background: var(--lemon); opacity: 0.4; border-radius: 4px; z-index: -1; }
.hero p { font-size: 1.1rem; opacity: 0.75; max-width: 520px; margin-bottom: 36px; line-height: 1.7; }
.hero-buttons { display: flex; gap: 14px; }
.hero-image { border-radius: 18px; overflow: hidden; box-shadow: 0 24px 60px rgba(44,58,58,0.14), 0 0 0 1px rgba(44,58,58,0.04); border: 4px solid #fff; transform: rotate(1.5deg); transition: transform 0.4s ease; }
.hero-image:hover { transform: rotate(0deg) scale(1.01); }
.hero-image img { width: 100%; height: auto; display: block; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 30px; border-radius: 100px; font-weight: 600; cursor: pointer; border: none; text-decoration: none; transition: all 0.25s ease; font-size: 0.95rem; }
.btn-primary { background: var(--coral); color: #fff; box-shadow: 0 6px 18px rgba(232,93,61,0.3); }
.btn-primary:hover { background: #D4502F; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(232,93,61,0.4); }
.btn-outline { background: transparent; border: 1.5px solid var(--teal); color: var(--teal); }
.btn-outline:hover { background: var(--teal); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(31,122,107,0.2); }

/* 标签 / 标题 */
.section-label { display: inline-block; font-size: 0.75rem; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; margin-bottom: 14px; color: var(--teal); background: var(--mint); padding: 6px 18px; border-radius: 100px; }
.section-title { font-size: clamp(1.8rem, 3vw, 2.4rem); line-height: 1.2; margin-bottom: 14px; font-weight: 800; letter-spacing: -0.02em; position: relative; padding-bottom: 14px; }
.section-title::after { content: ''; position: absolute; bottom: 0; left: 0; width: 68px; height: 4px; background: linear-gradient(90deg, var(--coral) 0%, var(--lemon) 100%); border-radius: 2px; }
.section-desc { max-width: 600px; opacity: 0.75; margin-bottom: 48px; font-size: 1rem; line-height: 1.7; }

/* 卡片网格 */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 28px; }
.category-card { background: radial-gradient(circle at top right, rgba(245,184,46,0.06), transparent 60%), var(--card); border-radius: var(--radius); padding: 30px; border: 1px solid rgba(44,58,58,0.05); transition: all 0.3s ease; box-shadow: var(--shadow-sm); position: relative; overflow: hidden; }
.category-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: linear-gradient(90deg, var(--coral), var(--lemon)); transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease; }
.category-card:hover::before { transform: scaleX(1); }
.category-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.card-icon { width: 54px; height: 54px; border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; font-size: 1.4rem; background: var(--mint); color: var(--teal); transition: transform 0.3s ease; }
.category-card:nth-child(even) .card-icon { background: rgba(245,184,46,0.18); color: var(--coral); }
.category-card:hover .card-icon { transform: scale(1.08) rotate(-5deg); }
.card-link { font-weight: 600; font-size: 0.85rem; color: var(--teal); text-decoration: none; display: inline-flex; align-items: center; gap: 4px; transition: gap 0.2s ease, color 0.2s ease; }
.card-link:hover { gap: 8px; color: var(--coral); }

/* 特性块 */
.feature-block { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.feature-image { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); position: relative; }
.feature-image::after { content: ''; position: absolute; inset: 0; border-radius: var(--radius); box-shadow: inset 0 0 0 1px rgba(44,58,58,0.06); pointer-events: none; }
.feature-image img { width: 100%; height: auto; display: block; }
.feature-text { }
.feature-text .section-title { margin-bottom: 16px; }
.feature-list { list-style: none; margin-top: 16px; }
.feature-list li { padding: 8px 0; display: flex; align-items: center; gap: 12px; font-size: 0.95rem; }
.feature-list li::before { content: '✓'; font-weight: 700; color: var(--teal); background: var(--mint); width: 24px; height: 24px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 0.7rem; flex-shrink: 0; }

/* 数据条 */
.stats-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-item { background: var(--card); padding: 32px 20px; border-radius: var(--radius); border: 1px solid rgba(44,58,58,0.05); box-shadow: var(--shadow-sm); position: relative; overflow: hidden; transition: transform 0.3s ease; }
.stat-item:hover { transform: translateY(-3px); }
.stat-item::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: var(--coral); }
.stat-item:nth-child(2)::before { background: var(--teal); }
.stat-item:nth-child(3)::before { background: var(--lemon); }
.stat-item:nth-child(4)::before { background: #6B8F9B; }
.stat-number { font-size: 2.4rem; font-weight: 800; color: var(--ink); letter-spacing: -0.03em; }
.stat-item:nth-child(1) .stat-number { color: var(--coral); }
.stat-item:nth-child(2) .stat-number { color: var(--teal); }
.stat-item:nth-child(3) .stat-number { color: #D4941A; }
.stat-item:nth-child(4) .stat-number { color: #6B8F9B; }
.stat-label { font-size: 0.85rem; opacity: 0.6; margin-top: 8px; letter-spacing: 1px; }

/* 内容墙 */
.content-wall { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 28px; }
.content-wall-item { background: var(--card); border-radius: var(--radius); overflow: hidden; border: 1px solid rgba(44,58,58,0.05); transition: all 0.3s ease; box-shadow: var(--shadow-sm); }
.content-wall-item:hover { transform: translateY(-5px) rotate(-0.5deg); box-shadow: var(--shadow-md); }
.content-wall-item img { width: 100%; height: 200px; object-fit: cover; display: block; transition: transform 0.5s ease; }
.content-wall-item:hover img { transform: scale(1.04); }
.content-wall-body { padding: 22px; }
.content-wall-body h3 { font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.content-wall-body p { font-size: 0.88rem; opacity: 0.65; line-height: 1.6; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid rgba(44,58,58,0.08); background: var(--card); border-radius: var(--radius); margin-bottom: 10px; overflow: hidden; cursor: pointer; transition: box-shadow 0.2s ease; }
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-item.open { box-shadow: var(--shadow-sm); }
.faq-item .faq-question { padding: 18px 24px; font-weight: 600; display: flex; justify-content: space-between; align-items: center; font-size: 0.95rem; }
.faq-question::after { content: '+'; font-size: 1.5rem; color: var(--coral); transition: transform 0.3s ease; font-weight: 400; line-height: 1; }
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-item .faq-answer { padding: 0 24px 20px; display: none; opacity: 0.75; font-size: 0.92rem; line-height: 1.7; }
.faq-item.open .faq-answer { display: block; }

/* CTA横幅 */
.cta-banner { padding: 76px 24px; text-align: center; border-radius: 24px; color: #fff; background: linear-gradient(135deg, var(--coral) 0%, #F18A5B 50%, var(--lemon) 100%); position: relative; overflow: hidden; box-shadow: 0 20px 50px rgba(232,93,61,0.25); }
.cta-banner::before { content: ''; position: absolute; top: -80px; right: -80px; width: 260px; height: 260px; border-radius: 50%; background: rgba(255,255,255,0.1); }
.cta-banner::after { content: ''; position: absolute; bottom: -60px; left: -40px; width: 180px; height: 180px; border-radius: 50%; background: rgba(255,255,255,0.08); }
.cta-banner h2 { color: #fff; font-size: clamp(1.8rem, 3vw, 2.4rem); margin-bottom: 12px; position: relative; z-index: 1; letter-spacing: -0.02em; }
.cta-banner p { color: rgba(255,255,255,0.92); margin-bottom: 30px; position: relative; z-index: 1; opacity: 1; max-width: 520px; margin-left: auto; margin-right: auto; }
.cta-banner .btn { background: #fff; color: var(--coral); position: relative; z-index: 1; box-shadow: 0 8px 24px rgba(0,0,0,0.12); }
.cta-banner .btn:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(0,0,0,0.16); }

/* 页脚 */
.site-footer { background: var(--soft); padding: 64px 0 28px; border-top: 1px solid rgba(44,58,58,0.06); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; }
.footer-brand h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.02em; }
.footer-brand .logo-icon { margin-bottom: 14px; }
.footer-brand p { opacity: 0.6; font-size: 0.9rem; max-width: 260px; line-height: 1.6; }
.footer-col h4 { font-size: 0.82rem; font-weight: 700; margin-bottom: 16px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--ink); }
.footer-col ul { list-style: none; }
.footer-col ul li { padding: 4px 0; }
.footer-col ul a { color: var(--ink); opacity: 0.6; text-decoration: none; font-size: 0.9rem; transition: opacity 0.2s ease, color 0.2s ease; }
.footer-col ul a:hover { opacity: 1; color: var(--coral); }
.footer-bottom { border-top: 1px solid rgba(44,58,58,0.1); margin-top: 40px; padding-top: 20px; text-align: center; font-size: 0.82rem; opacity: 0.45; }

/* 工具类 */
.text-accent { color: var(--coral); }
.text-center { text-align: center; }
.seo-description { max-width: 600px; margin: 0 auto 48px; opacity: 0.7; line-height: 1.7; text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ⚠️ 响应式 */
@media (max-width: 992px) {
  .feature-block { gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .hero { padding: 120px 0 60px; min-height: auto; }
  .hero::before { font-size: 7rem; right: -20px; }
  .hero::after { width: 180px; height: 180px; top: 15%; }
  .feature-block { grid-template-columns: 1fr; gap: 40px; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .main-nav.open { display: flex; flex-direction: column; position: absolute; top: 72px; left: 0; width: 100%; background: var(--bg); padding: 24px; box-shadow: 0 16px 30px rgba(44,58,58,0.08); border-bottom: 1px solid rgba(44,58,58,0.06); gap: 14px; align-items: flex-start; }
  .main-nav.open a { width: 100%; padding: 10px 6px; border-bottom: 1px solid rgba(44,58,58,0.05); font-size: 1rem; }
  .main-nav.open a::after { display: none; }
  .main-nav.open .nav-cta { display: inline-flex; justify-content: center; border-radius: 100px; margin-top: 10px; border-bottom: none; box-shadow: 0 4px 14px rgba(232,93,61,0.25); }
  .cta-banner { padding: 56px 24px; }
}
@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .hero-buttons .btn { justify-content: center; }
  .hero h1 { font-size: 2.1rem; }
  .section-title { font-size: 1.6rem; }
  .stat-item { padding: 24px 16px; }
  .stat-number { font-size: 2rem; }
}