/* ===== 芯电创联 餐饮软件 - 共享设计系统 ===== */
:root {
  --bg-cream: #faf8f5;
  --primary: #e6a23c;
  --primary-dark: #c8841a;
  --primary-light: #fdf3e0;
  --primary-soft: #fbe8c8;
  --text-brown: #5d4037;
  --text-muted: #8d6e63;
  --text-light: #a1887f;
  --card-bg: #ffffff;
  --border: #efe0d0;
  --border-soft: #f5ebe0;
  --shadow-sm: 0 2px 8px rgba(184, 134, 11, 0.06);
  --shadow-md: 0 8px 24px rgba(184, 134, 11, 0.10);
  --shadow-lg: 0 16px 48px rgba(184, 134, 11, 0.14);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 22px;
  --maxw: 1200px;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
  --sans: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", -apple-system, sans-serif;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--sans);
  background: var(--bg-cream);
  color: var(--text-brown);
  line-height: 1.7;
  overflow-x: hidden;
  font-size: 16px;
}

/* 暖色背景纹理 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(230, 162, 60, 0.06), transparent 38%),
    radial-gradient(circle at 88% 82%, rgba(193, 122, 58, 0.05), transparent 42%);
  pointer-events: none;
  z-index: -1;
}

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

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ===== 顶部导航 ===== */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250, 248, 245, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 28px;
}
.brand { display: flex; align-items: center; gap: 12px; font-family: var(--serif); }
.brand-mark {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: grid; place-items: center;
  color: #fff; font-weight: 700; font-size: 18px;
  box-shadow: var(--shadow-sm);
  font-family: var(--sans);
}
.brand-name { font-size: 19px; font-weight: 700; color: var(--text-brown); letter-spacing: 0.5px; }
.brand-sub { font-size: 11px; color: var(--text-light); letter-spacing: 2px; }
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  font-size: 14px; color: var(--text-muted); font-weight: 500;
  transition: color 0.2s; position: relative;
}
.nav-links a:hover { color: var(--primary-dark); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 2px; background: var(--primary); transition: width 0.25s;
}
.nav-links a:hover::after { width: 100%; }
.nav-back {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 14px; color: var(--text-muted); font-weight: 500;
  transition: color 0.2s;
}
.nav-back:hover { color: var(--primary-dark); }
.nav-back svg { width: 16px; height: 16px; }

/* ===== Hero 区 ===== */
.hero {
  position: relative; padding: 110px 0 90px; text-align: center;
  overflow: hidden;
}
.hero-eyebrow {
  display: inline-block; font-size: 12px; letter-spacing: 4px;
  color: var(--primary-dark); font-weight: 600;
  background: var(--primary-light); padding: 7px 18px; border-radius: 999px;
  margin-bottom: 28px; border: 1px solid var(--primary-soft);
}
.hero h1 {
  font-family: var(--serif); font-size: 54px; line-height: 1.18;
  font-weight: 700; color: var(--text-brown); letter-spacing: 1px;
  margin-bottom: 24px;
}
.hero h1 .accent { color: var(--primary-dark); }
.hero p.lead {
  font-size: 18px; color: var(--text-muted); max-width: 680px;
  margin: 0 auto 40px; line-height: 1.85;
}
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: 999px; font-size: 15px; font-weight: 600;
  cursor: pointer; border: none; transition: all 0.25s; font-family: var(--sans);
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff; box-shadow: 0 6px 18px rgba(230, 162, 60, 0.32);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(230, 162, 60, 0.42); }
.btn-ghost {
  background: transparent; color: var(--text-brown);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary-dark); background: var(--primary-light); }

/* ===== 数据亮点 ===== */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  background: var(--card-bg); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md); margin: 0 auto; max-width: 920px;
  overflow: hidden; border: 1px solid var(--border-soft);
}
.stat { padding: 34px 16px; text-align: center; border-right: 1px solid var(--border-soft); }
.stat:last-child { border-right: none; }
.stat-num {
  font-family: var(--serif); font-size: 38px; font-weight: 700;
  color: var(--primary-dark); line-height: 1; margin-bottom: 10px;
}
.stat-label { font-size: 13px; color: var(--text-muted); letter-spacing: 1px; }

/* ===== 区块标题 ===== */
.section { padding: 84px 0; }
.section-head { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block; font-size: 12px; letter-spacing: 3px;
  color: var(--primary-dark); font-weight: 600; margin-bottom: 14px;
}
.section-title {
  font-family: var(--serif); font-size: 36px; font-weight: 700;
  color: var(--text-brown); margin-bottom: 14px;
}
.section-desc { font-size: 16px; color: var(--text-muted); max-width: 620px; margin: 0 auto; }

/* ===== 分组标签 ===== */
.group-block { margin-bottom: 64px; }
.group-head {
  display: flex; align-items: center; gap: 16px; margin-bottom: 32px;
}
.group-line { flex: 1; height: 1px; background: var(--border); }
.group-title {
  font-family: var(--serif); font-size: 24px; font-weight: 600;
  color: var(--text-brown); white-space: nowrap;
}
.group-count {
  font-size: 13px; color: var(--text-light); background: var(--primary-light);
  padding: 4px 12px; border-radius: 999px; font-weight: 500;
}

/* ===== 项目卡片 ===== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.card {
  background: var(--card-bg); border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-sm); transition: all 0.3s ease;
  display: flex; flex-direction: column;
}
.card:hover {
  transform: translateY(-6px); box-shadow: var(--shadow-lg);
  border-color: var(--primary-soft);
}
.card-cover {
  width: 100%; aspect-ratio: 16 / 9; overflow: hidden;
  background: var(--primary-light); position: relative;
}
.card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.card:hover .card-cover img { transform: scale(1.05); }
.card-body { padding: 24px 24px 28px; flex: 1; display: flex; flex-direction: column; }
.card-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.tag {
  font-size: 11px; padding: 4px 11px; border-radius: 999px;
  font-weight: 500; letter-spacing: 0.5px;
}
.tag-primary { background: var(--primary-light); color: var(--primary-dark); }
.tag-outline { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.card-title {
  font-family: var(--serif); font-size: 22px; font-weight: 600;
  color: var(--text-brown); margin-bottom: 10px;
}
.card-desc { font-size: 14px; color: var(--text-muted); line-height: 1.75; margin-bottom: 18px; flex: 1; }
.card-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600; color: var(--primary-dark);
  transition: gap 0.2s;
}
.card:hover .card-link { gap: 11px; }
.card-link svg { width: 15px; height: 15px; }

/* ===== 能力网格 ===== */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cap {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 32px 28px; border: 1px solid var(--border-soft);
  transition: all 0.25s;
}
.cap:hover { border-color: var(--primary-soft); transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.cap-icon {
  width: 46px; height: 46px; border-radius: 12px;
  background: var(--primary-light); display: grid; place-items: center;
  margin-bottom: 18px; color: var(--primary-dark);
}
.cap-icon svg { width: 24px; height: 24px; }
.cap h3 { font-size: 18px; font-weight: 600; color: var(--text-brown); margin-bottom: 8px; }
.cap p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }

/* ===== 页脚 ===== */
.footer {
  background: var(--text-brown); color: #d7ccc8;
  padding: 64px 0 32px; margin-top: 40px;
}
.footer-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 28px;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px;
}
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.footer-brand .brand-mark { background: var(--primary); }
.footer-brand .brand-name { color: #fff; }
.footer p { font-size: 14px; line-height: 1.9; color: #bcaaa4; }
.footer h4 { font-size: 15px; color: #fff; margin-bottom: 18px; font-weight: 600; }
.footer ul { list-style: none; }
.footer li { font-size: 14px; color: #bcaaa4; margin-bottom: 10px; }
.footer li a:hover { color: var(--primary); }
.footer-bottom {
  max-width: var(--maxw); margin: 40px auto 0; padding: 24px 28px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 14px; color: #8d6e63; text-align: center;
}

/* ===== 分主页专属 ===== */
.proj-hero {
  position: relative; padding: 80px 0 56px; overflow: hidden;
}
.proj-hero-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.proj-breadcrumb { margin-bottom: 28px; }
.proj-breadcrumb a { font-size: 13px; color: var(--text-muted); }
.proj-breadcrumb span { font-size: 13px; color: var(--text-light); margin: 0 8px; }
.proj-breadcrumb b { font-size: 13px; color: var(--text-brown); font-weight: 500; }
.proj-head { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.proj-info .card-tags { margin-bottom: 20px; }
.proj-info h1 {
  font-family: var(--serif); font-size: 44px; font-weight: 700;
  color: var(--text-brown); line-height: 1.2; margin-bottom: 18px;
}
.proj-info .tagline { font-size: 19px; color: var(--primary-dark); margin-bottom: 22px; font-weight: 500; }
.proj-info .lead { font-size: 16px; color: var(--text-muted); line-height: 1.9; }
.proj-cover {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-lg); aspect-ratio: 4 / 3;
  border: 1px solid var(--border-soft);
}
.proj-cover img { width: 100%; height: 100%; object-fit: cover; }

/* 功能卡片 */
.feat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.feat {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 30px 28px; border: 1px solid var(--border-soft);
  transition: all 0.25s;
}
.feat:hover { border-color: var(--primary-soft); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.feat-num {
  display: inline-block; font-family: var(--serif); font-size: 14px; font-weight: 700;
  color: var(--primary); margin-bottom: 12px; letter-spacing: 1px;
}
.feat h3 { font-size: 18px; font-weight: 600; color: var(--text-brown); margin-bottom: 10px; }
.feat p { font-size: 14px; color: var(--text-muted); line-height: 1.75; }

/* 技术栈标签 */
.tech-wrap { background: var(--card-bg); border-radius: var(--radius-lg); padding: 40px; border: 1px solid var(--border-soft); }
.tech-list { display: flex; flex-wrap: wrap; gap: 12px; }
.tech-list .tag { font-size: 13px; padding: 8px 16px; }

/* 适用场景 */
.scenario-box {
  background: linear-gradient(135deg, var(--primary-light) 0%, #fef9ef 100%);
  border-radius: var(--radius-lg); padding: 44px 48px;
  border: 1px solid var(--primary-soft);
}
.scenario-box p { font-size: 16px; color: var(--text-brown); line-height: 1.95; }
.scenario-box strong { color: var(--primary-dark); }

/* 分页导航 */
.proj-nav {
  display: flex; justify-content: space-between; align-items: center;
  max-width: var(--maxw); margin: 0 auto; padding: 0 28px;
  gap: 16px; margin-top: 24px;
}
.proj-nav a {
  flex: 1; background: var(--card-bg); border-radius: var(--radius);
  padding: 22px 26px; border: 1px solid var(--border-soft);
  transition: all 0.2s; display: flex; align-items: center; gap: 14px;
}
.proj-nav a:hover { border-color: var(--primary-soft); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.proj-nav .nav-prev { text-align: left; }
.proj-nav .nav-next { text-align: right; justify-content: flex-end; }
.proj-nav .nav-label { font-size: 12px; color: var(--text-light); letter-spacing: 1px; }
.proj-nav .nav-name { font-size: 15px; color: var(--text-brown); font-weight: 600; }
.proj-nav .nav-home {
  flex: 0 0 auto; background: var(--primary); color: #fff;
  border-radius: 999px; padding: 14px 28px; font-weight: 600; font-size: 14px;
}
.proj-nav .nav-home:hover { background: var(--primary-dark); transform: translateY(-2px); }
.proj-nav svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .cards, .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--border-soft); }
  .proj-head { grid-template-columns: 1fr; gap: 32px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero h1 { font-size: 44px; }
}
@media (max-width: 767px) {
  .container { padding: 0 20px; }
  .nav-inner { padding: 14px 20px; }
  .nav-links { display: none; }
  .hero { padding: 72px 0 56px; }
  .hero h1 { font-size: 34px; }
  .hero p.lead { font-size: 16px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat { padding: 24px 12px; }
  .stat-num { font-size: 30px; }
  .section { padding: 60px 0; }
  .section-title { font-size: 28px; }
  .cards, .cap-grid, .feat-grid { grid-template-columns: 1fr; }
  .group-title { font-size: 20px; }
  .proj-info h1 { font-size: 32px; }
  .proj-info .tagline { font-size: 17px; }
  .tech-wrap, .scenario-box { padding: 28px 24px; }
  .proj-nav { flex-direction: column; }
  .proj-nav a { width: 100%; }
}