/* ===========================
   春秋集团官网 - 全局样式
   =========================== */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #1a3a5c;
  --primary-light: #2563a8;
  --accent: #c8972a;
  --accent-light: #e8b84b;
  --green: #16a34a;
  --orange: #ea580c;
  --text: #1a1a2e;
  --text-muted: #6b7280;
  --bg: #ffffff;
  --bg-light: #f8fafc;
  --border: #e5e7eb;
  --shadow: 0 4px 24px rgba(26,58,92,0.08);
  --shadow-lg: 0 12px 40px rgba(26,58,92,0.14);
  --radius: 12px;
  --radius-lg: 20px;
  --nav-h: 70px;
  --transition: 0.25s ease;
}

html { scroll-behavior: smooth; }
body { font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif; color: var(--text); background: var(--bg); line-height: 1.7; }

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 90px 0; }
.section-light { background: var(--bg-light); }

/* ===== 章节标题 ===== */
.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(200,151,42,0.12);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  border-radius: 20px;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.section-header { text-align: center; margin-bottom: 56px; }
.section-title { font-size: 2rem; font-weight: 700; color: var(--primary); line-height: 1.3; margin-bottom: 12px; }
.section-sub { color: var(--text-muted); font-size: 1.05rem; }

/* ===== 按钮 ===== */
.btn {
  display: inline-block;
  padding: 13px 32px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
}
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-light); border-color: var(--accent-light); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(200,151,42,0.35); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,0.7); }
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
.btn-white { background: #fff; color: var(--primary); border-color: #fff; }
.btn-white:hover { background: #f0f6ff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.15); }
.btn-full { width: 100%; text-align: center; }


/* ===========================
   导航栏
   =========================== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-img {
  width: 40px; height: 40px;
  border-radius: 50%;
  object-fit: cover;
}
.logo-text { font-size: 18px; font-weight: 700; color: var(--primary); }
.nav-links { display: flex; gap: 4px; }
.nav-link {
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--primary); background: rgba(26,58,92,0.07); }
.nav-link.active { font-weight: 600; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 5px; z-index: 1001; }
.hamburger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all var(--transition); transform-origin: center; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


/* ===========================
   首页 Hero
   =========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #0a1628 0%, #1a3a5c 45%, #1e4d7b 70%, #0f2540 100%);
}
.hero-bg::before {
  content: '';
  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='%23c8972a' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='1.5'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
}
.hero-overlay { position: absolute; inset: 0; background: radial-gradient(ellipse at 70% 50%, rgba(200,151,42,0.08) 0%, transparent 60%); }
.hero-content { position: relative; z-index: 1; max-width: 700px; padding: 80px 24px; }
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(200,151,42,0.18);
  border: 1px solid rgba(200,151,42,0.4);
  color: var(--accent-light);
  font-size: 13px;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: 24px;
  letter-spacing: 1px;
}
.hero-title { font-size: clamp(2.8rem, 6vw, 4.5rem); font-weight: 800; color: #fff; line-height: 1.15; margin-bottom: 24px; }
.hero-title .accent { color: var(--accent-light); }
.hero-desc { font-size: 1.15rem; color: rgba(255,255,255,0.75); max-width: 520px; margin-bottom: 40px; line-height: 1.8; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-scroll-hint {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,0.4); font-size: 12px;
}
.scroll-arrow {
  width: 20px; height: 20px;
  border-right: 2px solid rgba(255,255,255,0.3);
  border-bottom: 2px solid rgba(255,255,255,0.3);
  transform: rotate(45deg);
  animation: bounce 1.5s infinite;
}
@keyframes bounce { 0%,100%{transform:rotate(45deg) translateY(0);} 50%{transform:rotate(45deg) translateY(4px);} }


/* ===========================
   数据栏
   =========================== */
.stats-bar { background: var(--primary); padding: 48px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.stat-item {
  text-align: center;
  padding: 24px;
  border-right: 1px solid rgba(255,255,255,0.1);
}
.stat-item:last-child { border-right: none; }
.stat-num { font-size: 2.4rem; font-weight: 800; color: var(--accent-light); line-height: 1; }
.stat-unit { font-size: 1.1rem; font-weight: 600; margin-left: 2px; }
.stat-label { font-size: 14px; color: rgba(255,255,255,0.65); margin-top: 8px; }


/* ===========================
   三大业务
   =========================== */
.biz-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.biz-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.biz-card::before { content:''; position:absolute; inset:0; background: linear-gradient(135deg, transparent 60%, rgba(26,58,92,0.02)); pointer-events:none; }
.biz-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); border-color: rgba(37,99,168,0.2); }
.biz-card--featured { border-color: var(--accent); background: linear-gradient(135deg, #fffbf0, #fff); }
.biz-card--featured:hover { border-color: var(--accent); }
.biz-featured-tag {
  position: absolute; top: 20px; right: 20px;
  background: var(--accent); color: #fff;
  font-size: 12px; font-weight: 600;
  padding: 4px 12px; border-radius: 20px;
}
.biz-icon { width: 64px; height: 64px; margin-bottom: 24px; }
.biz-icon svg { width: 100%; height: 100%; }
.biz-title { font-size: 1.3rem; font-weight: 700; color: var(--primary); margin-bottom: 14px; }
.biz-desc { color: var(--text-muted); font-size: 14px; line-height: 1.8; margin-bottom: 20px; }
.biz-points { margin-bottom: 24px; }
.biz-points li { font-size: 13px; color: var(--text-muted); padding: 5px 0; padding-left: 16px; position: relative; }
.biz-points li::before { content:'›'; position:absolute; left:0; color: var(--accent); font-weight: 700; }
.biz-link { font-size: 14px; font-weight: 600; color: var(--primary-light); display: inline-flex; align-items: center; gap: 4px; transition: gap var(--transition); }
.biz-link:hover { gap: 8px; }


/* ===========================
   关于预览区
   =========================== */
.about-preview { background: var(--bg-light); }
.about-preview-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-img-box {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  min-height: 360px;
  display: flex; align-items: center; justify-content: center;
}
.about-img-decoration {
  position: absolute;
  top: -20px; right: -20px;
  width: 120px; height: 120px;
  border-radius: 50%;
  background: rgba(200,151,42,0.15);
  border: 2px dashed rgba(200,151,42,0.3);
}
.about-img-main { position: relative; z-index: 1; }
.about-icon-large { font-size: 4rem; font-weight: 900; color: var(--accent); letter-spacing: -4px; margin-bottom: 16px; }
.about-img-main p { color: rgba(255,255,255,0.9); font-size: 1.2rem; font-weight: 600; }
.about-sub-text { color: rgba(255,255,255,0.5) !important; font-size: 14px !important; font-weight: 400 !important; margin-top: 6px; }
.about-preview-text .section-title { text-align: left; }
.about-preview-text p { color: var(--text-muted); margin-bottom: 16px; line-height: 1.8; }
.about-values { margin-top: 24px; display: flex; flex-direction: column; gap: 16px; }
.value-item { display: flex; align-items: flex-start; gap: 14px; }
.value-icon { font-size: 1.5rem; flex-shrink: 0; margin-top: 2px; }
.value-item strong { display: block; color: var(--primary); font-weight: 600; margin-bottom: 2px; }
.value-item span { font-size: 14px; color: var(--text-muted); }


/* ===========================
   合作流程
   =========================== */
.flow-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.flow-item {
  flex: 1;
  min-width: 160px;
  max-width: 220px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 20px;
  text-align: center;
  transition: all var(--transition);
}
.flow-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.flow-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 12px;
}
.flow-item h4 { font-size: 1rem; color: var(--primary); font-weight: 700; margin-bottom: 8px; }
.flow-item p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }
.flow-arrow {
  font-size: 1.5rem;
  color: var(--accent);
  padding: 0 12px;
  flex-shrink: 0;
  font-weight: 300;
}

/* ===========================
   合作伙伴
   =========================== */
.partners-grid { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.partner-item {
  padding: 12px 28px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  color: var(--text-muted);
  transition: all var(--transition);
}
.partner-item:hover { border-color: var(--primary-light); color: var(--primary); box-shadow: var(--shadow); }


/* ===========================
   CTA
   =========================== */
.cta-section { background: linear-gradient(135deg, var(--primary), var(--primary-light)); padding: 80px 0; }
.cta-inner { text-align: center; }
.cta-inner h2 { font-size: 2rem; color: #fff; margin-bottom: 16px; }
.cta-inner p { color: rgba(255,255,255,0.75); margin-bottom: 36px; font-size: 1.05rem; }


/* ===========================
   页脚
   =========================== */
.footer { background: #0a1628; color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px; padding-bottom: 48px; }
.footer-logo { font-size: 1.5rem; font-weight: 800; color: var(--accent); margin-bottom: 12px; }
.footer-desc { font-size: 14px; margin-bottom: 6px; }
.footer-addr { font-size: 13px; color: rgba(255,255,255,0.4); }
.footer h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; }
.footer-links a, .footer-business a { display: block; font-size: 14px; margin-bottom: 10px; color: rgba(255,255,255,0.6); transition: color var(--transition); }
.footer-links a:hover, .footer-business a:hover { color: var(--accent-light); }
.footer-contact p { font-size: 14px; margin-bottom: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.35); }


/* ===========================
   页面 Hero（内页）
   =========================== */
.page-hero {
  background: linear-gradient(135deg, #0a1628, #1a3a5c);
  padding: calc(var(--nav-h) + 60px) 0 60px;
  text-align: left;
}
.page-hero-content .breadcrumb { font-size: 13px; color: rgba(255,255,255,0.45); margin-bottom: 16px; }
.page-hero-content .breadcrumb a { color: rgba(255,255,255,0.55); }
.page-hero-content .breadcrumb a:hover { color: var(--accent-light); }
.page-hero-content h1 { font-size: 2.8rem; color: #fff; font-weight: 800; margin-bottom: 12px; }
.page-hero-content p { color: rgba(255,255,255,0.7); font-size: 1.1rem; }


/* ===========================
   关于我们页面
   =========================== */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-intro-text .section-title { text-align: left; }
.about-intro-text p { color: var(--text-muted); margin-bottom: 16px; line-height: 1.8; }
.about-card-stack {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.about-card-item {
  padding: 32px 24px;
  border-radius: var(--radius);
  text-align: center;
}
.about-card-1 { background: linear-gradient(135deg, #1a3a5c, #2563a8); }
.about-card-2 { background: linear-gradient(135deg, #c8972a, #e8b84b); }
.about-card-3 { background: linear-gradient(135deg, #16a34a, #22c55e); }
.about-card-4 { background: linear-gradient(135deg, #ea580c, #f97316); }
.about-card-num { font-size: 2rem; font-weight: 800; color: #fff; }
.about-card-lbl { font-size: 13px; color: rgba(255,255,255,0.8); margin-top: 6px; }

.mvv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.mvv-card {
  padding: 44px 32px;
  border-radius: var(--radius-lg);
  text-align: center;
  background: #fff;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.mvv-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.mvv-icon { font-size: 2.5rem; margin-bottom: 20px; }
.mvv-card h3 { font-size: 1.2rem; color: var(--primary); font-weight: 700; margin-bottom: 12px; }
.mvv-card p { color: var(--text-muted); line-height: 1.8; font-size: 15px; }

/* 时间轴 */
.timeline { position: relative; max-width: 700px; margin: 0 auto; padding-left: 40px; }
.timeline::before { content:''; position:absolute; left:12px; top:8px; bottom:8px; width:2px; background: linear-gradient(to bottom, var(--primary-light), var(--accent)); }
.timeline-item { position: relative; margin-bottom: 48px; }
.timeline-dot { position: absolute; left: -36px; top: 6px; width: 16px; height: 16px; border-radius: 50%; background: var(--primary-light); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--primary-light); }
.timeline-dot-active { background: var(--accent); box-shadow: 0 0 0 2px var(--accent), 0 0 0 5px rgba(200,151,42,0.2); }
.timeline-date { font-size: 12px; font-weight: 600; color: var(--accent); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 6px; }
.timeline-content h4 { font-size: 1.1rem; color: var(--primary); font-weight: 700; margin-bottom: 8px; }
.timeline-content p { color: var(--text-muted); font-size: 14px; line-height: 1.8; }

/* 团队 */
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.team-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 40px 28px; text-align: center; transition: all var(--transition); }
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.team-avatar { font-size: 3rem; margin-bottom: 16px; }
.team-card h4 { font-size: 1.1rem; color: var(--primary); font-weight: 700; margin-bottom: 12px; }
.team-card p { font-size: 14px; color: var(--text-muted); line-height: 1.8; }


/* ===========================
   产品服务页面
   =========================== */
.service-nav-bar { background: var(--bg-light); border-bottom: 1px solid var(--border); position: sticky; top: var(--nav-h); z-index: 100; }
.service-nav { display: flex; gap: 4px; padding: 12px 0; }
.service-nav-item { padding: 10px 24px; border-radius: 8px; font-size: 15px; font-weight: 500; color: var(--text-muted); transition: all var(--transition); }
.service-nav-item:hover, .service-nav-item.active { background: var(--primary); color: #fff; }

.service-block { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.service-block-reverse { direction: rtl; }
.service-block-reverse > * { direction: ltr; }
.service-block-text .section-title { text-align: left; }
.service-lead { font-size: 1.05rem; color: var(--text-muted); margin-bottom: 32px; line-height: 1.8; }
.service-features { display: flex; flex-direction: column; gap: 24px; }
.sf-item { display: flex; gap: 16px; }
.sf-icon { font-size: 1.6rem; flex-shrink: 0; margin-top: 2px; }
.sf-item strong { display: block; color: var(--primary); font-weight: 600; margin-bottom: 4px; }
.sf-item p { font-size: 14px; color: var(--text-muted); }

/* 服务可视化卡片 */
.service-visual-card {
  border-radius: var(--radius-lg);
  padding: 36px;
  min-height: 360px;
  display: flex; flex-direction: column; justify-content: space-between;
  gap: 24px;
  overflow: hidden;
}
.svc-img-wrap {
  border-radius: 12px;
  overflow: hidden;
  margin: -36px -36px 0 -36px;
  width: calc(100% + 72px);
}
.svc-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.catering-visual { background: linear-gradient(135deg, #1a3a5c, #2563a8); }
.sv-stat-group { display: flex; gap: 20px; }
.sv-stat { flex: 1; background: rgba(255,255,255,0.1); border-radius: 10px; padding: 20px 16px; text-align: center; }
.sv-num { font-size: 1.6rem; font-weight: 800; color: var(--accent-light); display: block; }
.sv-lbl { font-size: 12px; color: rgba(255,255,255,0.7); margin-top: 4px; }
.sv-tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.sv-tag-cloud span { padding: 6px 14px; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); border-radius: 20px; font-size: 13px; color: rgba(255,255,255,0.8); }

.edu-visual { background: linear-gradient(135deg, #064e3b, #16a34a); }
.edu-title { font-size: 15px; color: rgba(255,255,255,0.7); font-weight: 600; margin-bottom: 4px; }
.edu-majors { display: flex; flex-direction: column; gap: 8px; }
.edu-major-item { background: rgba(255,255,255,0.12); border-radius: 8px; padding: 10px 14px; font-size: 14px; color: rgba(255,255,255,0.9); }
.edu-price-box { display: flex; align-items: center; gap: 16px; background: rgba(255,255,255,0.1); border-radius: 12px; padding: 20px; }
.edu-price-item { flex: 1; text-align: center; }
.edu-price-label { font-size: 12px; color: rgba(255,255,255,0.6); margin-bottom: 4px; }
.edu-price-num { font-size: 1.5rem; font-weight: 800; color: #fff; }
.edu-price-num span { font-size: 13px; font-weight: 400; color: rgba(255,255,255,0.6); }
.edu-price-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.2); }

.sw-visual { background: linear-gradient(135deg, #431407, #ea580c); }
.sw-modules { display: flex; align-items: center; gap: 8px; justify-content: center; }
.sw-module { background: rgba(255,255,255,0.12); border-radius: 12px; padding: 16px 12px; text-align: center; flex: 1; }
.sw-m-icon { font-size: 1.5rem; margin-bottom: 8px; }
.sw-m-name { font-size: 12px; color: rgba(255,255,255,0.85); font-weight: 600; }
.sw-arrow { font-size: 1.2rem; color: rgba(255,255,255,0.5); flex-shrink: 0; }
.sw-erp-bar { background: rgba(255,255,255,0.1); border-radius: 10px; padding: 16px; }
.sw-erp-label { font-size: 12px; color: rgba(255,255,255,0.6); margin-bottom: 10px; }
.sw-erp-items { display: flex; gap: 8px; }
.sw-erp-items span { flex: 1; text-align: center; background: rgba(255,255,255,0.12); border-radius: 6px; padding: 6px 0; font-size: 12px; color: rgba(255,255,255,0.85); }
.sw-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.sw-tag { padding: 6px 14px; background: rgba(255,255,255,0.15); border-radius: 20px; font-size: 13px; color: rgba(255,255,255,0.9); font-weight: 500; }


/* ===========================
   联系我们页面
   =========================== */
.contact-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.contact-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 36px 24px; text-align: center; transition: all var(--transition);
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.contact-card--highlight { border-color: var(--accent); background: linear-gradient(135deg, #fffbf0, #fff); }
.contact-card-icon { font-size: 2.5rem; margin-bottom: 16px; }
.contact-card h3 { font-size: 1rem; color: var(--primary); font-weight: 700; margin-bottom: 10px; }
.contact-card p { font-size: 15px; color: var(--text); font-weight: 600; margin-bottom: 8px; }
.contact-card-sub { font-size: 13px; color: var(--text-muted); }

.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-form-wrap .section-title { text-align: left; }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 14px; font-weight: 600; color: var(--primary); }
.required { color: #ef4444; }
.form-group input, .form-group textarea, .form-group select {
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  transition: border-color var(--transition);
  resize: vertical;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(37,99,168,0.08); }
.radio-group { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.radio-item {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px; cursor: pointer;
  font-size: 14px; transition: all var(--transition);
}
.radio-item:hover { border-color: var(--primary-light); background: rgba(37,99,168,0.04); }
.radio-item input { accent-color: var(--primary-light); }
.form-success { text-align: center; padding: 40px; }
.success-icon { font-size: 3rem; margin-bottom: 16px; }
.form-success h3 { color: var(--green); font-size: 1.3rem; margin-bottom: 10px; }
.form-success p { color: var(--text-muted); }

.contact-guide { display: flex; flex-direction: column; gap: 20px; }
.guide-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.guide-catering { border-left: 4px solid var(--primary); }
.guide-education { border-left: 4px solid var(--accent); }
.guide-software { border-left: 4px solid var(--orange); }
.guide-icon { font-size: 1.8rem; margin-bottom: 12px; }
.guide-card h4 { font-size: 1rem; color: var(--primary); font-weight: 700; margin-bottom: 10px; }
.guide-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 12px; line-height: 1.7; }
.guide-card ul { display: flex; flex-direction: column; gap: 6px; }
.guide-card li { font-size: 13px; color: var(--text-muted); padding-left: 14px; position: relative; }
.guide-card li::before { content:'•'; position:absolute; left:0; color: var(--accent); }
.wechat-tip { display: flex; align-items: center; gap: 8px; margin-top: 14px; padding: 10px 14px; background: #f0fdf4; border-radius: 8px; font-size: 13px; color: var(--green); font-weight: 600; }

.locations-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 40px; }
.location-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 20px; text-align: center; transition: all var(--transition); }
.location-item:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.location-icon { font-size: 2rem; margin-bottom: 14px; }
.location-item h4 { font-size: 14px; color: var(--primary); font-weight: 700; margin-bottom: 8px; }
.location-item p { font-size: 13px; color: var(--text-muted); }
.map-placeholder {
  background: linear-gradient(135deg, #1a3a5c, #2563a8);
  border-radius: var(--radius-lg);
  height: 240px;
  display: flex; align-items: center; justify-content: center;
}
.map-inner { text-align: center; }
.map-icon { font-size: 3rem; margin-bottom: 14px; }
.map-inner p { color: rgba(255,255,255,0.9); font-size: 1.1rem; font-weight: 600; }
.map-sub { font-size: 13px !important; color: rgba(255,255,255,0.55) !important; font-weight: 400 !important; margin-top: 6px; }


/* ===========================
   响应式
   =========================== */
@media (max-width: 1024px) {
  .biz-grid { grid-template-columns: 1fr 1fr; }
  .flow-arrow { display: none; }
  .flow-grid { gap: 16px; }
  .flow-item { max-width: 48%; }
  .about-preview-inner, .about-intro, .service-block { grid-template-columns: 1fr; gap: 48px; }
  .service-block-reverse { direction: ltr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .contact-cards { grid-template-columns: repeat(2, 1fr); }
  .locations-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --nav-h: 60px; }
  .section { padding: 52px 0; }
  .container { padding: 0 16px; }

  /* Hero */
  .hero-content { padding: 60px 16px 40px; }
  .hero-title { font-size: clamp(2rem, 8vw, 2.6rem); }
  .hero-desc { font-size: 1rem; }
  .hero-btns { gap: 12px; }
  .hero-btns .btn { padding: 12px 24px; font-size: 14px; }
  .hero-scroll-hint { display: none; }

  /* 数据栏 */
  .stats-bar { padding: 32px 0; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-item { padding: 16px 12px; }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item:nth-child(3) { border-right: 1px solid rgba(255,255,255,0.1); }
  .stat-num { font-size: 1.9rem; }

  /* 导航 */
  .nav-links {
    display: none;
    flex-direction: column;
    position: fixed;
    inset: 0;
    top: var(--nav-h);
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(12px);
    padding: 20px 16px;
    gap: 6px;
    z-index: 999;
    overflow-y: auto;
  }
  .nav-links.open { display: flex; }
  .nav-link { font-size: 1.05rem; padding: 14px 18px; border-radius: 10px; }
  .hamburger { display: flex; }
  .logo-text { font-size: 16px; }

  /* 业务卡片 */
  .biz-grid { grid-template-columns: 1fr; }
  .biz-card { padding: 28px 20px; }
  /* 合作流程 */
  .flow-grid { flex-direction: column; align-items: stretch; }
  .flow-item { max-width: 100%; }

  /* 关于预览 */
  .about-preview-inner { gap: 32px; }
  .about-img-box { min-height: 240px; padding: 40px 24px; }
  .about-icon-large { font-size: 3rem; }
  .about-values { gap: 12px; }

  /* 标题 */
  .section-title { font-size: 1.55rem; }
  .section-header { margin-bottom: 36px; }
  .page-hero-content h1 { font-size: 2rem; }

  /* MVV / 团队 */
  .mvv-grid, .team-grid { grid-template-columns: 1fr; }
  .mvv-card, .team-card { padding: 28px 20px; }

  /* 联系页 */
  .contact-cards { grid-template-columns: 1fr 1fr; }
  .contact-layout { grid-template-columns: 1fr; gap: 36px; }
  .form-row, .radio-group { grid-template-columns: 1fr; }
  .contact-card { padding: 24px 16px; }

  /* 服务页 */
  .service-nav { overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }
  .service-nav::-webkit-scrollbar { display: none; }
  .service-visual-card { padding: 24px; min-height: auto; }
  .sv-stat-group { flex-wrap: wrap; gap: 12px; }

  /* 驻点 / 位置 */
  .locations-grid { grid-template-columns: 1fr 1fr; }

  /* 时间轴 */
  .timeline { padding-left: 28px; }
  .timeline-dot { left: -24px; }

  /* 页脚 */
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .footer { padding: 40px 0 0; }
  .about-card-stack { grid-template-columns: 1fr 1fr; }

  /* CTA */
  .cta-section { padding: 56px 0; }
  .cta-inner h2 { font-size: 1.6rem; }

  /* 按钮 */
  .btn-full { width: 100%; }
}

@media (max-width: 480px) {
  .contact-cards, .locations-grid { grid-template-columns: 1fr; }
  .about-card-stack { grid-template-columns: 1fr 1fr; }
  .hero-title { font-size: 1.9rem; }
  .partners-grid { gap: 10px; }
  .partner-item { padding: 10px 18px; font-size: 14px; }
  .edu-price-box { flex-direction: column; gap: 8px; }
  .edu-price-divider { display: none; }
  .sw-modules { flex-wrap: wrap; }
  .sw-arrow { display: none; }
}

/* 动画 */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }