/* ==================== 基础样式 ==================== */
:root {
  --primary-color: #2563EB;
  --primary-dark: #1D4ED8;
  --secondary-color: #0F172A;
  --accent-color: #10B981;
  --dark-color: #0F172A;
  --light-color: #F8FAFC;
  --text-color: #334155;
  --text-light: #64748B;
  --white: #fff;
  --gray: #94A3B8;
  --border-radius: 12px;
  --box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background: var(--light-color);
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ==================== 导航栏 ==================== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 12px rgba(0,0,0,0.06);
  z-index: 1000;
  transition: var(--transition);
}
.navbar .container {
  display: flex; justify-content: space-between; align-items: center; height: 68px;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-size: 1.25rem; font-weight: 700; color: var(--primary-color);
}
.nav-brand i { font-size: 1.5rem; }
.nav-toggle {
  display: none; background: none; border: none;
  font-size: 1.5rem; color: var(--text-color); cursor: pointer;
}
.nav-menu { display: flex; list-style: none; gap: 28px; }
.nav-menu a {
  text-decoration: none; color: var(--text-color); font-weight: 500;
  transition: var(--transition); position: relative;
}
.nav-menu a:hover, .nav-menu a.active { color: var(--primary-color); }
.nav-menu a::after {
  content: ''; position: absolute; bottom: -5px; left: 0;
  width: 0; height: 2px; background: var(--primary-color); transition: var(--transition);
}
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }

/* ==================== Hero/Banner ==================== */
.hero {
  position: relative; min-height: 100vh;
  background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center; color: var(--white);
  overflow: hidden;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  z-index: 0;
}
.hero-content {
  position: relative; z-index: 2; max-width: 800px;
  padding: 0 20px;
}
.hero h1 { font-size: 3.2rem; font-weight: 800; margin-bottom: 16px; text-shadow: 2px 2px 6px rgba(0,0,0,0.3); }
.hero-subtitle { font-size: 1.4rem; color: #F97316; margin-bottom: 12px; font-weight: 500; }
.hero-desc { font-size: 1.1rem; opacity: 0.9; margin-bottom: 36px; }
.hero-buttons { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; margin-bottom: 50px; }

.btn {
  padding: 14px 38px; border-radius: 50px; font-size: 1.05rem; font-weight: 600;
  text-decoration: none; transition: var(--transition); cursor: pointer; border: none; display: inline-block;
}
.btn-primary { background: var(--primary-color); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-3px); box-shadow: 0 10px 30px rgba(37,99,235,0.4); }
.btn-secondary { background: transparent; color: var(--white); border: 2px solid rgba(255,255,255,0.7); }
.btn-secondary:hover { background: var(--white); color: var(--secondary-color); }

/* Hero统计 */
.hero-stats {
  position: relative; z-index: 2;
  display: flex; justify-content: center; gap: 50px;
  padding: 20px; flex-wrap: wrap;
}
.stat-item { text-align: center; min-width: 100px; }
.stat-number { font-size: 2.2rem; font-weight: 800; color: #F97316; display: block; line-height: 1.2; }
.stat-label { font-size: 0.9rem; opacity: 0.85; margin-top: 5px; }

/* ==================== 数据公示条 ==================== */
.data-bar { background: var(--white); padding: 30px 0; box-shadow: 0 2px 12px rgba(0,0,0,0.04); }
.data-bar-grid { display: flex; justify-content: center; gap: 60px; flex-wrap: wrap; }
.data-bar-item { display: flex; align-items: center; gap: 12px; }
.data-bar-item i { font-size: 1.6rem; color: var(--primary-color); }
.data-bar-value { font-size: 1.4rem; font-weight: 700; color: var(--dark-color); }
.data-bar-label { font-size: 0.9rem; color: var(--text-light); }

/* ==================== 通用区块 ==================== */
section { padding: 90px 0; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header h2 {
  font-size: 2.4rem; color: var(--dark-color); margin-bottom: 12px;
  position: relative; display: inline-block;
}
.section-header h2::after {
  content: ''; position: absolute; bottom: -10px; left: 50%; transform: translateX(-50%);
  width: 56px; height: 4px; background: var(--primary-color); border-radius: 2px;
}
.section-header p { color: var(--text-light); font-size: 1.05rem; margin-top: 18px; }
.section-header.light h2 { color: var(--white); }
.section-header.light p { color: rgba(255,255,255,0.8); }

/* ==================== 关于我们 ==================== */
.about { background: var(--white); }
.about-content { display: grid; gap: 50px; }
.about-info { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.info-card { background: var(--light-color); padding: 36px; border-radius: var(--border-radius); }
.info-card h3 { font-size: 1.4rem; color: var(--primary-color); margin-bottom: 18px; }
.info-card p { color: var(--text-light); margin-bottom: 14px; line-height: 1.8; }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.info-item {
  background: var(--white); padding: 24px; border-radius: var(--border-radius);
  box-shadow: var(--box-shadow); text-align: center; transition: var(--transition);
}
.info-item:hover { transform: translateY(-5px); }
.info-item i { font-size: 1.8rem; color: var(--primary-color); margin-bottom: 10px; }
.info-label { display: block; font-size: 0.85rem; color: var(--text-light); margin-bottom: 4px; }
.info-value { display: block; font-size: 1.05rem; font-weight: 600; color: var(--dark-color); }
.about-features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card {
  text-align: center; padding: 36px 24px; background: var(--white);
  border-radius: var(--border-radius); box-shadow: var(--box-shadow); transition: var(--transition);
}
.feature-card:hover { transform: translateY(-8px); box-shadow: 0 12px 32px rgba(0,0,0,0.12); }
.feature-icon {
  width: 72px; height: 72px;
  background: linear-gradient(135deg, var(--primary-color), #60A5FA);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px;
}
.feature-icon i { font-size: 1.8rem; color: var(--white); }
.feature-card h4 { font-size: 1.1rem; color: var(--dark-color); margin-bottom: 12px; }
.feature-card p { color: var(--text-light); font-size: 0.9rem; }

/* ==================== 核心业务 ==================== */
.business { background: linear-gradient(135deg, var(--secondary-color) 0%, #1e3a8a 100%); }
.business-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.business-card {
  background: rgba(255,255,255,0.07); backdrop-filter: blur(10px);
  border-radius: var(--border-radius); padding: 40px; transition: var(--transition);
  border: 1px solid rgba(255,255,255,0.1);
}
.business-card:hover { background: rgba(255,255,255,0.12); transform: translateY(-6px); }
.business-icon {
  width: 80px; height: 80px; border-radius: var(--border-radius);
  display: flex; align-items: center; justify-content: center; margin-bottom: 20px;
}
.business-icon i { font-size: 2.2rem; color: var(--white); }
.meituan-icon { background: linear-gradient(135deg, #FBBF24, #F59E0B); }
.wechat-icon { background: linear-gradient(135deg, #22C55E, #16A34A); }
.alipay-icon { background: linear-gradient(135deg, #3B82F6, #2563EB); }
.meituan-group-icon { background: linear-gradient(135deg, #FB923C, #EA580C); }
.business-card h3 { font-size: 1.4rem; color: var(--white); margin-bottom: 14px; }
.business-card > p { color: rgba(255,255,255,0.85); line-height: 1.8; margin-bottom: 20px; font-size: 0.95rem; }
.business-list { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.business-list li { color: rgba(255,255,255,0.85); display: flex; align-items: center; gap: 8px; font-size: 0.9rem; }
.business-list i { color: #93C5FD; font-size: 0.8rem; }

/* ==================== 合作优势 ==================== */
.advantages { background: var(--light-color); }
.advantages-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.advantage-item {
  background: var(--white); padding: 36px 28px; border-radius: var(--border-radius);
  text-align: center; box-shadow: var(--box-shadow); transition: var(--transition);
  border: 2px solid transparent;
}
.advantage-item:hover { border-color: var(--primary-color); transform: translateY(-6px); }
.advantage-icon {
  width: 64px; height: 64px; background: linear-gradient(135deg, #DBEAFE, #BFDBFE);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.advantage-icon i { font-size: 1.6rem; color: var(--primary-color); }
.advantage-item h4 { font-size: 1.1rem; color: var(--dark-color); margin-bottom: 10px; }
.advantage-item p { color: var(--text-light); font-size: 0.9rem; }

/* ==================== 地推招募 ==================== */
.recruit { background: linear-gradient(135deg, #1e3a8a 0%, var(--secondary-color) 100%); }
.recruit-modes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-bottom: 60px; }
.recruit-card {
  background: rgba(255,255,255,0.08); backdrop-filter: blur(10px);
  border-radius: var(--border-radius); padding: 36px; transition: var(--transition);
  border: 1px solid rgba(255,255,255,0.1); position: relative;
}
.recruit-card:hover { background: rgba(255,255,255,0.14); transform: translateY(-6px); }
.recruit-card.featured { border-color: var(--primary-color); background: rgba(37,99,235,0.15); }
.recruit-badge {
  display: inline-block; padding: 5px 16px; background: var(--primary-color);
  border-radius: 20px; font-size: 0.85rem; color: var(--white); margin-bottom: 16px; font-weight: 600;
}
.recruit-card h3 { font-size: 1.3rem; color: var(--white); margin-bottom: 14px; }
.recruit-card > p { color: rgba(255,255,255,0.85); line-height: 1.8; margin-bottom: 18px; font-size: 0.93rem; }
.recruit-list { list-style: none; }
.recruit-list li { color: rgba(255,255,255,0.85); display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-size: 0.9rem; }
.recruit-list i { color: #93C5FD; }

/* 作业流程 */
.process-section { margin-bottom: 60px; }
.process-section h3 { text-align: center; font-size: 1.6rem; color: var(--white); margin-bottom: 40px; }
.process-steps { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; }
.process-step { text-align: center; }
.step-number {
  width: 52px; height: 52px; background: var(--primary-color); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; font-weight: 700; color: var(--white); margin: 0 auto 10px;
}
.process-step p { color: rgba(255,255,255,0.85); font-size: 0.85rem; line-height: 1.5; max-width: 120px; }
.process-arrow { color: rgba(255,255,255,0.4); font-size: 1.2rem; }

/* 表单 */
.form-section {
  background: rgba(255,255,255,0.06); backdrop-filter: blur(10px);
  border-radius: var(--border-radius); padding: 44px; border: 1px solid rgba(255,255,255,0.1);
}
.form-section h3 { font-size: 1.5rem; color: var(--white); margin-bottom: 8px; text-align: center; }
.form-desc { color: rgba(255,255,255,0.7); text-align: center; margin-bottom: 28px; font-size: 0.95rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full-width { grid-column: 1 / -1; margin-top: 8px; }
.form-group label { color: rgba(255,255,255,0.85); font-size: 0.9rem; font-weight: 500; }
.form-group label i { margin-right: 4px; }
.form-group input, .form-group select, .form-group textarea {
  padding: 12px 16px; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px; color: var(--white); font-size: 0.95rem; transition: var(--transition);
  font-family: inherit;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(255,255,255,0.4); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--primary-color); background: rgba(255,255,255,0.15);
}
.form-group select option { background: var(--dark-color); color: var(--white); }
.btn-submit { margin-top: 20px; width: 100%; text-align: center; }

/* ==================== 商户服务 ==================== */
.merchant { background: var(--white); }
.merchant-content { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: flex-start; }
.merchant-desc p { color: var(--text-light); line-height: 1.9; margin-bottom: 16px; }
.merchant-tags { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.merchant-tag {
  padding: 10px 20px; background: var(--light-color); border-radius: 25px;
  font-size: 0.9rem; color: var(--text-color); display: flex; align-items: center; gap: 6px;
  transition: var(--transition);
}
.merchant-tag:hover { background: var(--primary-color); color: var(--white); }
.merchant-tag i { color: var(--primary-color); }
.merchant-tag:hover i { color: var(--white); }
.merchant-form-wrap {
  background: var(--light-color); border-radius: var(--border-radius); padding: 36px;
  box-shadow: var(--box-shadow);
}
.merchant-form-wrap h3 { font-size: 1.3rem; color: var(--dark-color); margin-bottom: 6px; }
.merchant-form-wrap .form-desc { color: var(--text-light); text-align: left; margin-bottom: 20px; }
.merchant-form .form-group { margin-bottom: 14px; }
.merchant-form .form-group label { color: var(--text-color); }
.merchant-form .form-group label i { color: var(--primary-color); }
.merchant-form .form-group input {
  background: var(--white); border: 1px solid #E2E8F0; color: var(--text-color);
}
.merchant-form .form-group input::placeholder { color: var(--gray); }
.merchant-form .form-group input:focus { border-color: var(--primary-color); }
.merchant-form .btn-submit { background: var(--primary-color); }

/* ==================== 合作须知 ==================== */
.notice { background: var(--light-color); }
.notice-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.notice-item {
  background: var(--white); padding: 28px; border-radius: var(--border-radius);
  box-shadow: var(--box-shadow); display: flex; gap: 16px; align-items: flex-start;
  transition: var(--transition);
}
.notice-item:hover { transform: translateY(-4px); }
.notice-item i { font-size: 1.4rem; color: var(--primary-color); flex-shrink: 0; margin-top: 2px; }
.notice-item p { color: var(--text-light); font-size: 0.93rem; line-height: 1.7; }

/* ==================== 联系我们 ==================== */
.contact { background: linear-gradient(135deg, var(--dark-color) 0%, #1e3a8a 100%); }
.contact-content { display: grid; gap: 40px; }
.contact-info { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.contact-card {
  background: rgba(255,255,255,0.08); backdrop-filter: blur(10px);
  border-radius: var(--border-radius); padding: 36px 24px; text-align: center;
  transition: var(--transition); border: 1px solid rgba(255,255,255,0.08);
}
.contact-card:hover { background: rgba(255,255,255,0.14); transform: translateY(-5px); }
.contact-card i { font-size: 2.2rem; color: #93C5FD; margin-bottom: 18px; }
.contact-card h4 { font-size: 1.1rem; color: var(--white); margin-bottom: 12px; }
.contact-card p { color: rgba(255,255,255,0.9); font-size: 0.95rem; margin-bottom: 4px; }
.contact-note { display: block; color: rgba(255,255,255,0.5); font-size: 0.8rem; margin-top: 8px; }

/* ==================== 页脚 ==================== */
.footer { background: #020617; color: var(--white); padding: 50px 0 28px; }
.footer-content {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 24px; margin-bottom: 30px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 1.2rem; font-weight: 700; }
.footer-brand i { color: var(--primary-color); font-size: 1.4rem; }
.footer-info { text-align: center; }
.footer-info p { color: rgba(255,255,255,0.5); font-size: 0.85rem; margin-bottom: 4px; }
.footer-bottom { text-align: center; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.08); }
.footer-bottom p { color: rgba(255,255,255,0.4); font-size: 0.85rem; }
.footer-bottom a { color: rgba(255,255,255,0.6); text-decoration: none; }
.footer-bottom a:hover { color: var(--primary-color); }
.footer-tip { margin-top: 10px; font-size: 0.8rem; color: rgba(255,255,255,0.3); line-height: 1.6; }

/* ==================== 回到顶部 ==================== */
.back-to-top {
  position: fixed; bottom: 30px; right: 30px; width: 46px; height: 46px;
  background: var(--primary-color); color: var(--white); border: none; border-radius: 50%;
  cursor: pointer; font-size: 1.1rem; box-shadow: 0 4px 16px rgba(37,99,235,0.4);
  transition: var(--transition); opacity: 0; visibility: hidden; z-index: 999;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.back-to-top:hover { transform: translateY(-4px); }

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  .about-info { grid-template-columns: 1fr; }
  .about-features { grid-template-columns: repeat(2, 1fr); }
  .business-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .recruit-modes { grid-template-columns: 1fr; }
  .merchant-content { grid-template-columns: 1fr; }
  .contact-info { grid-template-columns: repeat(2, 1fr); }
  .notice-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-menu {
    position: fixed; top: 68px; left: 0; right: 0; background: var(--white);
    flex-direction: column; padding: 16px; gap: 0;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1); transform: translateY(-150%); transition: var(--transition);
  }
  .nav-menu.active { transform: translateY(0); }
  .nav-menu li { border-bottom: 1px solid #F1F5F9; }
  .nav-menu a { display: block; padding: 14px 0; }

  .hero { min-height: 80vh; }
  .hero h1 { font-size: 1.7rem; margin-bottom: 10px; }
  .hero-subtitle { font-size: 1rem; margin-bottom: 8px; }
  .hero-desc { font-size: 0.88rem; margin-bottom: 20px; line-height: 1.5; }
  .hero-buttons { flex-direction: column; gap: 10px; width: 100%; max-width: 260px; margin: 0 auto 30px; }
  .hero-buttons .btn { width: 100%; padding: 12px 20px; font-size: 0.95rem; }
  .hero-stats { gap: 20px; }
  .stat-number { font-size: 1.6rem; }
  .stat-label { font-size: 0.75rem; }

  .data-bar-grid { gap: 20px; }
  .data-bar-item i { font-size: 1.2rem; }
  .data-bar-value { font-size: 1.1rem; }

  section { padding: 60px 0; }
  .section-header h2 { font-size: 1.7rem; }
  .about-features { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .contact-info { grid-template-columns: 1fr; }
  .footer-content { flex-direction: column; text-align: center; }

  .process-steps { flex-direction: column; gap: 16px; }
  .process-arrow { transform: rotate(90deg); }
  .process-step p { max-width: 100%; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.5rem; }
  .hero-stats { flex-direction: row; flex-wrap: wrap; }
  .stat-item { min-width: 45%; }
  .form-section { padding: 24px 16px; }
  .merchant-form-wrap { padding: 24px 16px; }
}