/* =============================================
   笨熊进货 — 企业门户网站
   天津三只熊科技有限公司
   ============================================= */

/* --- Reset & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #333;
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color 0.2s; }
ul { list-style: none; }
img { max-width: 100%; height: auto; vertical-align: middle; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* --- Colors --- */
:root {
  --orange: #E85D2C;
  --orange-dark: #c94d1f;
  --orange-light: #FFF3ED;
  --blue: #1a73e8;
  --blue-dark: #0d47a1;
  --green: #27AE60;
  --gray-100: #F8F9FA;
  --gray-200: #E9ECEF;
  --gray-400: #ADB5BD;
  --gray-600: #6C757D;
  --gray-800: #343A40;
  --text: #333;
  --text-light: #666;
  --radius: 8px;
  --shadow: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
}

/* --- Typography --- */
h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; color: var(--gray-800); }
h2.section-title {
  font-size: 32px;
  text-align: center;
  margin-bottom: 12px;
}
p.section-desc {
  text-align: center;
  color: var(--text-light);
  font-size: 17px;
  max-width: 640px;
  margin: 0 auto 50px;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
  border: none;
  text-align: center;
}
.btn-primary {
  background: var(--orange);
  color: #fff;
}
.btn-primary:hover { background: var(--orange-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(232,93,44,0.35); }
.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.6);
}
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
.btn-outline-dark {
  background: transparent;
  color: var(--orange);
  border: 2px solid var(--orange);
}
.btn-outline-dark:hover { background: var(--orange); color: #fff; }

/* =============================================
   HEADER / NAV
   ============================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow 0.3s;
}
.header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.08); }
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--orange);
}
.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--orange);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
}
.nav { display: flex; align-items: center; gap: 8px; }
.nav a {
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--gray-800);
  border-radius: 6px;
  transition: all 0.2s;
}
.nav a:hover, .nav a.active { background: var(--orange-light); color: var(--orange); }
.nav .btn { padding: 8px 22px; font-size: 14px; margin-left: 8px; }
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-800);
  border-radius: 2px;
  transition: all 0.3s;
}

/* =============================================
   HERO
   ============================================= */
.hero {
  background: linear-gradient(135deg, #2C3E50 0%, #1a2a3a 50%, #0d1b2a 100%);
  color: #fff;
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232,93,44,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-content { max-width: 680px; }
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(232,93,44,0.2);
  border: 1px solid rgba(232,93,44,0.3);
  border-radius: 100px;
  font-size: 13px;
  color: var(--orange);
  margin-bottom: 20px;
  font-weight: 500;
}
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 20px;
  line-height: 1.2;
}
.hero h1 span { color: var(--orange); }
.hero p {
  font-size: 18px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
  line-height: 1.8;
  max-width: 560px;
}
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }

/* --- Hero Stats --- */
.hero-stats {
  display: flex;
  gap: 50px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-stats .stat-item { text-align: center; }
.hero-stats .num {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.hero-stats .num .suffix { font-size: 20px; color: var(--orange); }
.hero-stats .label {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  margin-top: 6px;
}

/* =============================================
   SECTION (共用)
   ============================================= */
.section { padding: 90px 0; }
.section-alt { background: var(--gray-100); }

/* =============================================
   SERVICES - 核心业务
   ============================================= */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 40px 30px;
  box-shadow: var(--shadow);
  transition: all 0.3s;
  border: 1px solid var(--gray-200);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--orange);
}
.service-icon {
  width: 56px;
  height: 56px;
  background: var(--orange-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
}
.service-card h3 { font-size: 20px; margin-bottom: 12px; }
.service-card p { color: var(--text-light); font-size: 15px; line-height: 1.7; }
.service-card .tag {
  display: inline-block;
  padding: 3px 12px;
  background: var(--orange-light);
  color: var(--orange);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  margin-top: 16px;
}

/* =============================================
   FLOW - 采购流程
   ============================================= */
.flow-steps {
  display: flex;
  justify-content: center;
  gap: 0;
  position: relative;
}
.flow-step {
  flex: 1;
  text-align: center;
  position: relative;
  padding: 0 20px;
}
.flow-step:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -12px;
  top: 28px;
  font-size: 24px;
  color: var(--gray-400);
  font-weight: 700;
}
.flow-num {
  width: 64px;
  height: 64px;
  line-height: 64px;
  border-radius: 50%;
  background: var(--orange);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  margin: 0 auto 18px;
  box-shadow: 0 4px 14px rgba(232,93,44,0.3);
}
.flow-step h4 { font-size: 18px; margin-bottom: 8px; }
.flow-step p { color: var(--text-light); font-size: 14px; }

/* =============================================
   ABOUT - 关于我们
   ============================================= */
.about-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-image {
  background: linear-gradient(135deg, var(--orange-light), #fff);
  border-radius: 16px;
  padding: 40px;
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.about-image .big-text {
  font-size: 56px;
  font-weight: 800;
  color: var(--orange);
  line-height: 1.1;
}
.about-image .big-text small {
  font-size: 20px;
  color: var(--text-light);
  font-weight: 400;
}
.about-image .stat-row {
  display: flex;
  gap: 30px;
  margin-top: 30px;
}
.about-image .stat-row div {
  text-align: center;
  flex: 1;
}
.about-image .stat-row .n { font-size: 28px; font-weight: 800; color: var(--orange); }
.about-image .stat-row .l { font-size: 13px; color: var(--gray-600); }
.about-text h2 { font-size: 30px; margin-bottom: 16px; text-align: left; }
.about-text h2::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: var(--orange);
  border-radius: 2px;
  margin-top: 12px;
}
.about-text p { color: var(--text-light); margin-bottom: 16px; font-size: 15px; }

/* =============================================
   VALUES - 企业价值观
   ============================================= */
.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.value-card {
  text-align: center;
  padding: 36px 20px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
  transition: all 0.3s;
}
.value-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.value-card .icon {
  font-size: 42px;
  margin-bottom: 16px;
}
.value-card h4 { font-size: 18px; margin-bottom: 10px; }
.value-card p { color: var(--text-light); font-size: 14px; }

/* =============================================
   SUPPLIERS (供应商 / 餐厅 两侧)
   ============================================= */
.dual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}
.dual-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 40px 34px;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
}
.dual-card h3 {
  font-size: 22px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.dual-card ul { margin: 16px 0; }
.dual-card ul li {
  padding: 8px 0;
  font-size: 15px;
  color: var(--text-light);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.dual-card ul li::before {
  content: '✓';
  color: var(--green);
  font-weight: 700;
  flex-shrink: 0;
}
.dual-card .btn { margin-top: 12px; }

/* =============================================
   COVERAGE - 配送覆盖
   ============================================= */
.coverage-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.coverage-item {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-200);
}
.coverage-item .city { font-size: 20px; font-weight: 700; color: var(--orange); margin-bottom: 6px; }
.coverage-item .desc { font-size: 13px; color: var(--text-light); }

/* =============================================
   CTA
   ============================================= */
.cta-section {
  background: linear-gradient(135deg, var(--orange) 0%, #d94a1a 100%);
  color: #fff;
  text-align: center;
  padding: 80px 0;
}
.cta-section h2 { font-size: 34px; color: #fff; margin-bottom: 12px; }
.cta-section p { font-size: 17px; opacity: 0.85; margin-bottom: 32px; max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-section .btn-outline { border-width: 2px; padding: 14px 40px; font-size: 16px; }

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: #1a1a2e;
  color: rgba(255,255,255,0.65);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
  font-weight: 600;
}
.footer-brand .logo { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.8; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.65); }
.footer-links a:hover { color: var(--orange); }
.footer-contact li {
  font-size: 14px;
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.footer-contact .icon { color: var(--orange); flex-shrink: 0; }
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* =============================================
   PAGE: 关于我们
   ============================================= */
.page-header {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, #2C3E50, #1a2a3a);
  color: #fff;
  text-align: center;
}
.page-header h1 { font-size: 38px; color: #fff; margin-bottom: 12px; }
.page-header p { font-size: 18px; color: rgba(255,255,255,0.7); max-width: 600px; margin: 0 auto; }
.milestones {
  position: relative;
  padding-left: 40px;
}
.milestone-item {
  position: relative;
  padding: 0 0 40px 30px;
  border-left: 2px solid var(--gray-200);
}
.milestone-item:last-child { border-left-color: transparent; padding-bottom: 0; }
.milestone-item::before {
  content: '';
  position: absolute;
  left: -7px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--orange);
  border: 2px solid #fff;
}
.milestone-item .year {
  font-size: 13px;
  color: var(--orange);
  font-weight: 700;
  margin-bottom: 4px;
}
.milestone-item h4 { font-size: 18px; margin-bottom: 6px; }
.milestone-item p { font-size: 14px; color: var(--text-light); }

/* =============================================
   PAGE: 联系我们 / CONTACT
   ============================================= */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}
.contact-info h3 { font-size: 22px; margin-bottom: 20px; }
.contact-info .info-item {
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
}
.contact-info .info-icon {
  width: 48px;
  height: 48px;
  background: var(--orange-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.contact-info .info-item h4 { font-size: 15px; margin-bottom: 4px; }
.contact-info .info-item p { font-size: 14px; color: var(--text-light); }

/* =============================================
   PAGE: 合作入驻
   ============================================= */
.join-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.join-feature-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  text-align: center;
  border: 1px solid var(--gray-200);
}
.join-feature-card .icon { font-size: 40px; margin-bottom: 14px; }
.join-feature-card h4 { font-size: 18px; margin-bottom: 10px; }
.join-feature-card p { font-size: 14px; color: var(--text-light); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 968px) {
  .mobile-toggle { display: flex; }
  .nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    display: none;
    gap: 4px;
  }
  .nav.open { display: flex; }
  .nav a { width: 100%; padding: 12px 16px; }
  .nav .btn { margin: 8px 0 0 0; text-align: center; }

  .hero h1 { font-size: 34px; }
  .hero-stats { gap: 30px; flex-wrap: wrap; }
  .hero-stats .stat-item { flex: 1; min-width: 80px; }
  .hero-stats .num { font-size: 28px; }

  .services-grid { grid-template-columns: 1fr 1fr; }
  .flow-steps { flex-wrap: wrap; gap: 24px; }
  .flow-step { flex: 0 0 45%; }
  .flow-step:not(:last-child)::after { display: none; }

  .about-wrap { grid-template-columns: 1fr; gap: 40px; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .dual-grid { grid-template-columns: 1fr; }
  .coverage-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .join-features { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 576px) {
  .hero h1 { font-size: 28px; }
  .hero { padding: 130px 0 60px; }
  .services-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .coverage-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .join-features { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  h2.section-title { font-size: 26px; }
}