/* =============================================
   DESIGN SYSTEM: "NEWSPAPER DECONSTRUCTED"
   Awwwards-winning style — 2025
   Background: warm off-white paper
   Accent: deep teal + coral red
   Typography: bold serif headlines, clean sans body
   Layout: asymmetric magazine grid, layered cards
   ============================================= */

/* 基础重置 */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
body { font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif; overflow-x:hidden; background:#f5f0eb; color:#1a1a1a; }

/* 核心布局 — 必须居中 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:100px 0; position:relative; }
.section:nth-child(even) { background:#efe9e2; }

/* 导航 — 固定顶部，半透明纸质感 */
.site-header { position:fixed; top:0; left:0; width:100%; z-index:1000; background:rgba(245,240,235,0.92); backdrop-filter:blur(12px); border-bottom:2px solid #d9cdc0; }
.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:10px; font-weight:800; font-size:1.3rem; text-decoration:none; color:#1a1a1a; letter-spacing:-0.5px; }
.logo-icon { width:40px; height:40px; border-radius:50%; background:#c75b4a; color:#f5f0eb; display:flex; align-items:center; justify-content:center; font-size:1.2rem; font-weight:700; }
.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:#2c3e3a; transition:0.2s; border-bottom:2px solid transparent; padding-bottom:4px; }
.main-nav a:hover { border-bottom-color:#c75b4a; color:#c75b4a; }
.nav-cta { padding:10px 24px; border-radius:50px; background:#2c3e3a; color:#f5f0eb!important; font-weight:600; border-bottom:none!important; }
.nav-cta:hover { background:#c75b4a; color:#fff!important; }
.menu-toggle { display:none; background:none; border:2px solid #2c3e3a; border-radius:8px; padding:8px 12px; font-size:1.2rem; color:#2c3e3a; cursor:pointer; }

/* 首页Hero — 杂志封面风格 */
.hero { min-height:75vh; display:flex; align-items:center; padding:140px 0 80px; background:linear-gradient(135deg, #f5f0eb 0%, #e8ddd0 100%); position:relative; overflow:hidden; }
.hero::before { content:''; position:absolute; top:-20%; right:-10%; width:400px; height:400px; background:radial-gradient(circle, rgba(199,91,74,0.15) 0%, transparent 70%); border-radius:50%; }
.hero-content { max-width:780px; position:relative; z-index:2; }
.hero-eyebrow { display:inline-block; font-size:0.8rem; font-weight:700; letter-spacing:3px; padding:6px 18px; border-radius:50px; background:#2c3e3a; color:#f5f0eb; margin-bottom:20px; text-transform:uppercase; }
.hero h1 { font-size:3.6rem; line-height:1.1; margin-bottom:24px; font-weight:900; letter-spacing:-1px; color:#1a1a1a; border-left:6px solid #c75b4a; padding-left:24px; }
.hero p { font-size:1.15rem; opacity:0.75; max-width:560px; margin-bottom:36px; line-height:1.6; color:#2c3e3a; }
.hero-buttons { display:flex; gap:16px; }
.hero-image { border-radius:4px; overflow:hidden; box-shadow:12px 12px 0 #2c3e3a; transform:rotate(-1deg); }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 — 复古大胆 */
.btn { display:inline-flex; align-items:center; gap:10px; padding:14px 32px; border-radius:50px; font-weight:700; cursor:pointer; border:none; text-decoration:none; transition:0.25s; font-size:0.95rem; letter-spacing:0.5px; }
.btn-primary { background:#c75b4a; color:#f5f0eb; box-shadow:4px 4px 0 #2c3e3a; }
.btn-primary:hover { transform:translate(-2px,-2px); box-shadow:6px 6px 0 #2c3e3a; }
.btn-outline { background:transparent; border:2px solid #2c3e3a; color:#2c3e3a; box-shadow:4px 4px 0 #2c3e3a; }
.btn-outline:hover { background:#2c3e3a; color:#f5f0eb; transform:translate(-2px,-2px); }

/* 标签/标题 — 报纸头条感 */
.section-label { display:inline-block; font-size:0.75rem; font-weight:700; letter-spacing:3px; margin-bottom:16px; color:#c75b4a; text-transform:uppercase; border-bottom:2px solid #c75b4a; padding-bottom:4px; }
.section-title { font-size:2.6rem; margin-bottom:16px; font-weight:900; letter-spacing:-0.5px; color:#1a1a1a; line-height:1.2; }
.section-desc { max-width:620px; opacity:0.75; margin-bottom:48px; font-size:1.05rem; line-height:1.6; color:#2c3e3a; }

/* 卡片网格 — 叠层卡片，错落布局 */
.cards-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:28px; }
.category-card { border-radius:4px; padding:32px; background:#f5f0eb; border:2px solid #2c3e3a; transition:0.25s; box-shadow:6px 6px 0 #2c3e3a; position:relative; }
.category-card:nth-child(2n) { transform:rotate(0.5deg); }
.category-card:nth-child(3n) { transform:rotate(-0.3deg); }
.category-card:hover { transform:translate(-4px,-4px) rotate(0deg); box-shadow:10px 10px 0 #c75b4a; border-color:#c75b4a; }
.card-icon { width:52px; height:52px; border-radius:50%; background:#2c3e3a; color:#f5f0eb; display:flex; align-items:center; justify-content:center; margin-bottom:20px; font-size:1.4rem; }
.category-card h3 { font-size:1.2rem; font-weight:800; margin-bottom:8px; }
.category-card p { font-size:0.9rem; opacity:0.7; margin-bottom:16px; line-height:1.5; }
.card-link { font-weight:700; font-size:0.85rem; text-decoration:none; color:#c75b4a; border-bottom:2px solid transparent; }
.card-link:hover { border-bottom-color:#c75b4a; }

/* 特性块 — 不对称杂志排版 */
.feature-block { display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; }
.feature-image { border-radius:4px; overflow:hidden; border:2px solid #2c3e3a; box-shadow:8px 8px 0 #c75b4a; transform:rotate(-0.5deg); }
.feature-image img { width:100%; height:auto; display:block; }
.feature-text { padding:20px 0; }
.feature-text h3 { font-size:1.8rem; font-weight:900; margin-bottom:12px; line-height:1.2; }
.feature-text p { font-size:1rem; opacity:0.7; line-height:1.6; margin-bottom:20px; }
.feature-list { list-style:none; }
.feature-list li { padding:8px 0; display:flex; align-items:center; gap:12px; font-weight:500; border-bottom:1px dashed #d9cdc0; }
.feature-list li::before { content:'✓'; font-weight:700; color:#c75b4a; font-size:1.1rem; }

/* 数据条 — 粗体数字，卡片式 */
.stats-bar { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; }
.stat-item { padding:32px 16px; border-radius:4px; border:2px solid #2c3e3a; background:#f5f0eb; box-shadow:4px 4px 0 #2c3e3a; }
.stat-number { font-size:2.8rem; font-weight:900; color:#c75b4a; line-height:1; }
.stat-label { font-size:0.9rem; opacity:0.65; margin-top:8px; font-weight:500; text-transform:uppercase; letter-spacing:1px; }

/* 内容墙 — 网格拼贴 */
.content-wall { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:28px; }
.content-wall-item { border-radius:4px; overflow:hidden; border:2px solid #2c3e3a; background:#f5f0eb; transition:0.25s; box-shadow:4px 4px 0 #2c3e3a; }
.content-wall-item:hover { transform:translate(-3px,-3px); box-shadow:8px 8px 0 #c75b4a; border-color:#c75b4a; }
.content-wall-item img { width:100%; height:200px; object-fit:cover; display:block; border-bottom:2px solid #2c3e3a; }
.content-wall-body { padding:24px; }
.content-wall-body h4 { font-size:1.1rem; font-weight:800; margin-bottom:6px; }
.content-wall-body p { font-size:0.9rem; opacity:0.7; line-height:1.5; }

/* FAQ — 折叠卡片 */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { border:2px solid #2c3e3a; border-radius:4px; margin-bottom:12px; overflow:hidden; cursor:pointer; background:#f5f0eb; box-shadow:3px 3px 0 #2c3e3a; transition:0.2s; }
.faq-item:hover { box-shadow:5px 5px 0 #c75b4a; }
.faq-item .faq-question { padding:18px 24px; font-weight:700; font-size:1.05rem; display:flex; justify-content:space-between; align-items:center; background:#efe9e2; color:#1a1a1a; }
.faq-item .faq-question::after { content:'+'; font-size:1.4rem; font-weight:300; transition:0.3s; color:#c75b4a; }
.faq-item.open .faq-question::after { content:'−'; }
.faq-item .faq-answer { padding:0 24px 20px; display:none; opacity:0.75; line-height:1.6; }
.faq-item.open .faq-answer { display:block; }

/* CTA横幅 — 大胆色块 */
.cta-banner { padding:64px 24px; text-align:center; border-radius:4px; background:#2c3e3a; color:#f5f0eb; border:2px solid #1a1a1a; box-shadow:8px 8px 0 #c75b4a; }
.cta-banner h2 { color:#f5f0eb; font-size:2.2rem; font-weight:900; margin-bottom:12px; }
.cta-banner p { opacity:0.8; margin-bottom:28px; font-size:1.05rem; }
.cta-banner .btn-primary { background:#c75b4a; color:#f5f0eb; box-shadow:4px 4px 0 #1a1a1a; }
.cta-banner .btn-primary:hover { transform:translate(-2px,-2px); box-shadow:6px 6px 0 #1a1a1a; }

/* 页脚 — 深色纸质感 */
.site-footer { padding:64px 0 32px; background:#2c3e3a; color:#d9cdc0; border-top:4px solid #c75b4a; }
.site-footer .container { }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:48px; }
.footer-brand h3 { color:#f5f0eb; font-size:1.4rem; font-weight:800; margin-bottom:12px; }
.footer-brand p { opacity:0.65; line-height:1.6; font-size:0.9rem; }
.footer-col h4 { color:#f5f0eb; font-size:1rem; font-weight:700; margin-bottom:16px; text-transform:uppercase; letter-spacing:1px; }
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:8px; }
.footer-col ul li a { color:#d9cdc0; text-decoration:none; font-size:0.9rem; opacity:0.7; transition:0.2s; }
.footer-col ul li a:hover { opacity:1; color:#c75b4a; }
.footer-bottom { border-top:2px solid rgba(255,255,255,0.1); margin-top:48px; padding-top:24px; text-align:center; font-size:0.85rem; opacity:0.6; }

/* 工具类 */
.text-accent { color:#c75b4a; }
.text-center { text-align:center; }
.seo-description { max-width:620px; margin:0 auto 48px; opacity:0.7; font-size:1rem; line-height:1.6; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ⚠️ 响应式 — 保持杂志感 */
@media (max-width: 768px) {
  .hero h1 { font-size:2.4rem; padding-left:16px; }
  .section-title { font-size:2rem; }
  .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:#f5f0eb; padding:24px; border-bottom:2px solid #2c3e3a; gap:16px; }
  .main-nav.open a { font-size:1.05rem; }
  .hero { padding:120px 0 60px; }
  .cta-banner h2 { font-size:1.6rem; }
}
@media (max-width: 480px) {
  .cards-grid,.content-wall,.stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .hero-buttons { flex-direction:column; }
  .hero h1 { font-size:1.8rem; }
  .section-title { font-size:1.6rem; }
  .stat-number { font-size:2rem; }
  .hero-eyebrow { font-size:0.7rem; }
}