/* ============================================
   一竞技测速 - 一竞技app - 一技测速，决胜毫厘
   设计系统：温暖陶土 × 鼠尾草绿 — 有机新拟态
   ============================================ */

/* 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:#fdf8f3;
  color:#3b2a1d;
  line-height:1.6;
}

/* 核心布局 */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) { background:#fef5ef; }

/* 导航 */
.site-header { 
  position:fixed; top:0; left:0; width:100%; z-index:1000; 
  background:rgba(253,248,243,0.94); 
  backdrop-filter:blur(14px); 
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid #e8dbcf; 
}
.header-inner { 
  display:flex; align-items:center; justify-content:space-between; 
  height:68px; max-width:1200px; margin:0 auto; padding:0 24px; 
}
.logo { 
  display:flex; align-items:center; gap:10px; 
  font-weight:700; font-size:1.2rem; text-decoration:none; 
  color:#3b2a1d; letter-spacing:-0.3px;
  transition:opacity 0.25s;
}
.logo:hover { opacity:0.78; }
.logo-icon { 
  width:38px; height:38px; border-radius:10px; 
  display:flex; align-items:center; justify-content:center; 
  font-size:1.1rem; font-weight:800;
  background:linear-gradient(135deg, #d4785c 0%, #e8946f 50%, #c45c3a 100%);
  color:#fff;
  box-shadow:0 3px 10px rgba(180,78,53,0.2);
}
.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:#5c4a3a; transition:0.25s; position:relative;
}
.main-nav a:hover { color:#d4785c; }
.main-nav a::after {
  content:''; position:absolute; bottom:-4px; left:0; width:0; height:2px;
  background:#d4785c; border-radius:1px; transition:width 0.3s ease;
}
.main-nav a:hover::after { width:100%; }
.nav-cta { 
  padding:9px 22px; border-radius:25px; 
  color:#fff!important; font-weight:600; 
  background:linear-gradient(135deg, #d4785c, #c45c3a);
  box-shadow:0 4px 14px rgba(180,78,53,0.25);
  transition:0.3s;
}
.nav-cta:hover { 
  transform:translateY(-2px); 
  box-shadow:0 6px 20px rgba(180,78,53,0.35);
}
.nav-cta::after { display:none; }
.menu-toggle { display:none; background:none; border:none; cursor:pointer; color:#3b2a1d; font-size:1.6rem; }

/* 首页Hero */
.hero { 
  min-height:70vh; display:flex; align-items:center; 
  padding-top:68px;
  background:radial-gradient(ellipse at 70% 30%, rgba(212,120,92,0.06) 0%, transparent 60%),
             radial-gradient(ellipse at 30% 70%, rgba(125,143,110,0.05) 0%, transparent 55%);
}
.hero .container { display:flex; align-items:center; gap:48px; flex-wrap:wrap; }
.hero-content { max-width:720px; flex:1; min-width:300px; }
.hero-eyebrow { 
  display:inline-block; font-size:0.8rem; font-weight:700; 
  padding:5px 16px; border-radius:20px; margin-bottom:18px; 
  background:#fef0e9; color:#c45c3a; letter-spacing:1.5px;
  text-transform:uppercase;
}
.hero h1 { 
  font-size:3.2rem; line-height:1.15; margin-bottom:20px; 
  font-weight:800; color:#3b2a1d; letter-spacing:-1px;
}
.hero h1 .highlight { 
  background:linear-gradient(135deg, #d4785c, #c45c3a);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero p { 
  font-size:1.1rem; color:#6b5a4e; max-width:560px; margin-bottom:34px; 
  line-height:1.7;
}
.hero-buttons { display:flex; gap:14px; flex-wrap:wrap; }
.hero-image { 
  flex:1; min-width:280px; border-radius:16px; overflow:hidden;
  box-shadow:0 20px 50px rgba(180,78,53,0.12), 0 4px 16px rgba(0,0,0,0.04);
}
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 */
.btn { 
  display:inline-flex; align-items:center; gap:8px; 
  padding:13px 30px; border-radius:25px; font-weight:600; 
  cursor:pointer; border:none; text-decoration:none; 
  transition:0.3s; font-size:0.95rem;
}
.btn-primary { 
  color:#fff; 
  background:linear-gradient(135deg, #d4785c, #c45c3a);
  box-shadow:0 4px 16px rgba(180,78,53,0.28);
}
.btn-primary:hover { 
  transform:translateY(-2px); 
  box-shadow:0 8px 24px rgba(180,78,53,0.38);
}
.btn-outline { 
  background:transparent; border:1.8px solid #d4785c; color:#c45c3a; 
}
.btn-outline:hover { 
  background:#d4785c; color:#fff; 
}

/* 标签/标题 */
.section-label { 
  display:inline-block; font-size:0.78rem; font-weight:700; 
  letter-spacing:2.5px; margin-bottom:14px; 
  color:#c45c3a; text-transform:uppercase;
}
.section-title { 
  font-size:2.2rem; margin-bottom:14px; font-weight:800; 
  color:#3b2a1d; letter-spacing:-0.5px;
}
.section-desc { 
  max-width:600px; color:#6b5a4e; margin-bottom:44px; 
  font-size:1.05rem; line-height:1.7;
}

/* 卡片网格 */
.cards-grid { 
  display:grid; grid-template-columns:repeat(auto-fill,minmax(270px,1fr)); 
  gap:24px; 
}
.category-card { 
  border-radius:14px; padding:30px 26px; 
  border:1px solid #e8dbcf; 
  background:#fff;
  transition:0.3s cubic-bezier(0.25,0.8,0.25,1.2);
  box-shadow:0 2px 8px rgba(0,0,0,0.03);
  cursor:pointer;
}
.category-card:hover { 
  transform:translateY(-5px); 
  box-shadow:0 12px 30px rgba(180,78,53,0.1), 0 4px 12px rgba(0,0,0,0.04);
  border-color:#dbb9a8;
}
.card-icon { 
  width:50px; height:50px; border-radius:12px; 
  display:flex; align-items:center; justify-content:center; 
  margin-bottom:18px; font-size:1.4rem;
  background:linear-gradient(135deg, #fef0e9, #fdf2ea);
  color:#d4785c;
}
.category-card h3 { font-size:1.1rem; margin-bottom:8px; color:#3b2a1d; font-weight:700; }
.category-card p { font-size:0.9rem; color:#6b5a4e; line-height:1.6; margin-bottom:14px; }
.card-link { 
  font-weight:600; font-size:0.85rem; text-decoration:none; 
  color:#d4785c; display:inline-flex; align-items:center; gap:4px;
  transition:gap 0.25s;
}
.card-link:hover { gap:8px; color:#c45c3a; }

/* 特性块 */
.feature-block { 
  display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; 
}
.feature-image { 
  border-radius:16px; overflow:hidden;
  box-shadow:0 16px 40px rgba(180,78,53,0.1), 0 4px 10px rgba(0,0,0,0.03);
}
.feature-image img { width:100%; height:auto; display:block; }
.feature-text h3 { font-size:1.6rem; margin-bottom:12px; font-weight:700; color:#3b2a1d; }
.feature-text p { color:#6b5a4e; margin-bottom:20px; line-height:1.7; }
.feature-list { list-style:none; }
.feature-list li { 
  padding:8px 0; display:flex; align-items:center; gap:10px; 
  color:#3b2a1d; font-size:0.95rem;
}
.feature-list li::before { 
  content:'✓'; font-weight:700; color:#7d8f6e; font-size:1.1rem;
  width:24px; height:24px; border-radius:50%;
  background:#eef3e8; display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
}

/* 数据条 */
.stats-bar { 
  display:grid; grid-template-columns:repeat(4,1fr); gap:24px; text-align:center; 
}
.stat-item { 
  padding:28px 20px; border-radius:14px; 
  border:1px solid #e8dbcf; background:#fff;
  transition:0.3s;
  box-shadow:0 2px 8px rgba(0,0,0,0.02);
}
.stat-item:hover { 
  transform:translateY(-3px); 
  box-shadow:0 10px 28px rgba(180,78,53,0.08);
}
.stat-number { 
  font-size:2.6rem; font-weight:800; 
  background:linear-gradient(135deg, #d4785c, #b84e35);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text;
}
.stat-label { font-size:0.9rem; color:#8b7a6a; margin-top:6px; font-weight:500; }

/* 内容墙 */
.content-wall { 
  display:grid; grid-template-columns:repeat(auto-fill,minmax(290px,1fr)); 
  gap:24px; 
}
.content-wall-item { 
  border-radius:14px; overflow:hidden; 
  border:1px solid #e8dbcf; 
  background:#fff;
  transition:0.3s cubic-bezier(0.25,0.8,0.25,1.15);
  box-shadow:0 2px 8px rgba(0,0,0,0.02);
}
.content-wall-item:hover { 
  transform:translateY(-5px); 
  box-shadow:0 14px 32px rgba(180,78,53,0.1), 0 4px 10px rgba(0,0,0,0.04);
}
.content-wall-item img { width:100%; height:200px; object-fit:cover; display:block; }
.content-wall-body { padding:22px 20px; }
.content-wall-body h3 { font-size:1.05rem; font-weight:700; color:#3b2a1d; margin-bottom:6px; }
.content-wall-body p { font-size:0.88rem; color:#6b5a4e; line-height:1.6; }
.content-wall-body .card-link { margin-top:10px; }

/* FAQ */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item { 
  border:1px solid #e8dbcf; border-radius:12px; 
  margin-bottom:10px; overflow:hidden; cursor:pointer; 
  background:#fff; transition:0.25s;
}
.faq-item:hover { border-color:#dbb9a8; }
.faq-item .faq-question { 
  padding:18px 22px; font-weight:600; 
  display:flex; justify-content:space-between; align-items:center;
  color:#3b2a1d; font-size:1rem;
  transition:color 0.25s;
}
.faq-item .faq-question::after {
  content:'+'; font-size:1.3rem; font-weight:400; color:#d4785c;
  transition:transform 0.3s;
}
.faq-item.open .faq-question { color:#c45c3a; }
.faq-item.open .faq-question::after { content:'−'; transform:rotate(180deg); }
.faq-item .faq-answer { 
  padding:0 22px 18px; display:none; 
  color:#6b5a4e; line-height:1.7; font-size:0.95rem;
}
.faq-item.open .faq-answer { display:block; }
.faq-item.open { 
  border-color:#dbb9a8; 
  box-shadow:0 4px 16px rgba(180,78,53,0.06);
}

/* CTA横幅 */
.cta-banner { 
  padding:60px 24px; text-align:center; border-radius:16px; 
  color:#fff; 
  background:linear-gradient(135deg, #d4785c 0%, #c45c3a 40%, #b84e35 100%);
  box-shadow:0 16px 40px rgba(180,78,53,0.25);
  position:relative; overflow:hidden;
}
.cta-banner::before {
  content:''; position:absolute; top:-60px; right:-60px; 
  width:200px; height:200px; border-radius:50%;
  background:rgba(255,255,255,0.05);
}
.cta-banner::after {
  content:''; position:absolute; bottom:-40px; left:-40px; 
  width:140px; height:140px; border-radius:50%;
  background:rgba(255,255,255,0.04);
}
.cta-banner h2 { color:#fff; font-size:2rem; font-weight:800; position:relative; z-index:1; }
.cta-banner p { color:rgba(255,255,255,0.85); margin:12px 0 24px; position:relative; z-index:1; font-size:1.05rem; }
.cta-banner .btn-primary { 
  background:#fff; color:#c45c3a; 
  box-shadow:0 4px 16px rgba(0,0,0,0.12);
  position:relative; z-index:1;
}
.cta-banner .btn-primary:hover { 
  transform:translateY(-2px); 
  box-shadow:0 8px 24px rgba(0,0,0,0.18);
}

/* 页脚 */
.site-footer { 
  padding:56px 0 28px; 
  background:#f5ede4; 
  color:#5c4a3a;
}
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand .logo { margin-bottom:12px; }
.footer-brand p { color:#7a6a5a; font-size:0.9rem; line-height:1.7; }
.footer-col h4 { font-weight:700; margin-bottom:14px; color:#3b2a1d; font-size:0.95rem; }
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:8px; }
.footer-col ul li a { 
  text-decoration:none; color:#6b5a4e; font-size:0.88rem; 
  transition:color 0.25s;
}
.footer-col ul li a:hover { color:#d4785c; }
.footer-bottom { 
  border-top:1px solid #e0d3c5; margin-top:40px; padding-top:22px; 
  text-align:center; font-size:0.85rem; color:#8b7a6a;
}

/* 工具类 */
.text-accent { color:#d4785c; font-weight:600; }
.text-center { text-align:center; }
.seo-description { 
  max-width:640px; margin:0 auto 48px; 
  color:#6b5a4e; font-size:1rem; line-height:1.7;
}
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 滚动条美化 */
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:#fdf8f3; }
::-webkit-scrollbar-thumb { background:#d4b8a8; border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:#c45c3a; }

/* 选中文字 */
::selection { background:rgba(212,120,92,0.2); color:#3b2a1d; }

/* 响应式 */
@media (max-width: 768px) {
  .section { padding:56px 0; }
  .hero { min-height:auto; padding-top:90px; padding-bottom:40px; }
  .hero .container { flex-direction:column; }
  .hero h1 { font-size:2.2rem; }
  .hero p { font-size:1rem; }
  .hero-image { order:-1; }
  .feature-block { grid-template-columns:1fr; gap:32px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); gap:16px; }
  .footer-grid { grid-template-columns:1fr 1fr; gap:28px; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; align-items:center; justify-content:center; width:40px; height:40px; }
  .main-nav.open { 
    display:flex; flex-direction:column; position:absolute; 
    top:68px; left:0; width:100%; 
    background:#fdf8f3; padding:24px; 
    border-bottom:1px solid #e8dbcf;
    box-shadow:0 8px 24px rgba(0,0,0,0.06);
  }
  .main-nav.open a { padding:12px 0; font-size:1rem; }
  .cta-banner { padding:40px 20px; }
  .cta-banner h2 { font-size:1.5rem; }
}
@media (max-width: 480px) {
  .container { padding:0 16px; }
  .header-inner { padding:0 16px; }
  .cards-grid,.content-wall,.stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; gap:24px; }
  .hero-buttons { flex-direction:column; align-items:stretch; }
  .hero-buttons .btn { justify-content:center; }
  .hero h1 { font-size:1.8rem; }
  .section-title { font-size:1.6rem; }
  .feature-block { gap:24px; }
  .stats-bar { gap:12px; }
  .stat-number { font-size:2rem; }
}