/* ============================================
   改布局 / 换肤：优先改下面变量，或改 js/config.js
   ============================================ */
:root {
  --c-primary: #e23c3c;
  --c-primary-dark: #c42d25;
  --c-text: #222222;
  --c-muted: #888888;
  --c-bg: #f5f6f8;
  --c-line: #ececec;
  --page-width: 1200px;
  --header-h: 64px;
  --radius: 8px;
  --gap: 16px;
  --grid-cols: 4;
  --brand-cols: 6;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.5;
}
a { color: inherit; text-decoration: none; }
button, input { font-family: inherit; }
img { max-width: 100%; display: block; }

.wrap {
  width: min(var(--page-width), calc(100% - 32px));
  margin: 0 auto;
}

/* 顶栏 */
.topbar {
  background: #2b2b2b;
  color: #ddd;
  font-size: 12px;
  height: 36px;
}
.topbar-inner {
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar-links { display: flex; gap: 18px; }
.topbar-links a:hover { color: #fff; }

/* 页头 */
.header {
  background: #fff;
  border-bottom: 1px solid var(--c-line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 24px;
}
.logo { display: flex; align-items: center; gap: 10px; min-width: 150px; }
.logo-mark {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--c-primary); color: #fff;
  display: grid; place-items: center; font-weight: 700;
}
.logo b { display: block; font-size: 20px; line-height: 1.1; }
.logo small { color: var(--c-muted); font-size: 12px; }
.nav { display: flex; gap: 18px; font-size: 15px; }
.nav a { padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a.is-active, .nav a:hover { color: var(--c-primary); border-bottom-color: var(--c-primary); }

.search { flex: 1; display: flex; max-width: 360px; }
.search input {
  flex: 1; height: 36px; border: 1px solid var(--c-line);
  border-right: 0; border-radius: var(--radius) 0 0 var(--radius);
  padding: 0 12px; outline: none;
}
.search input:focus { border-color: var(--c-primary); }
.search button {
  height: 36px; padding: 0 16px; border: 0; cursor: pointer;
  background: var(--c-primary); color: #fff;
  border-radius: 0 var(--radius) var(--radius) 0;
}
.phone { margin-left: auto; text-align: right; line-height: 1.15; }
.phone span { display: block; font-size: 12px; color: var(--c-muted); }
.phone b { color: var(--c-primary); font-size: 18px; }

/* 头图区 */
.hero {
  background: linear-gradient(120deg, var(--c-primary-dark), var(--c-primary));
  color: #fff; padding: 36px 0 40px;
}
.hero h1 { font-size: 32px; font-weight: 700; }
.hero p { opacity: .9; margin: 8px 0 22px; }
.hero-stats { display: flex; gap: 40px; }
.hero-stats b { display: block; font-size: 28px; }
.hero-stats span { font-size: 13px; opacity: .85; }

/* 通用板块 */
.panel { padding: 28px 0; }
.panel-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 16px;
}
.panel-head h2 { font-size: 22px; }
.panel-head span { font-size: 13px; color: var(--c-muted); }

/* 品牌 */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(var(--brand-cols), 1fr);
  gap: 10px;
}
.brand-item {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 12px 8px; text-align: center; cursor: pointer;
}
.brand-item:hover, .brand-item.is-active {
  border-color: var(--c-primary); color: var(--c-primary);
}
.brand-logo {
  width: 40px; height: 40px; margin: 0 auto 6px; border-radius: 50%;
  color: #fff; display: grid; place-items: center;
  font-size: 12px; font-weight: 700;
}
.brand-item b { display: block; font-size: 13px; font-weight: 600; }

/* 筛选 */
.filters { display: flex; gap: 8px; margin-bottom: 16px; }
.filters button {
  height: 32px; padding: 0 14px; border-radius: 16px; cursor: pointer;
  border: 1px solid var(--c-line); background: #fff;
}
.filters button.is-active {
  background: var(--c-primary); color: #fff; border-color: var(--c-primary);
}

/* 车型卡片 */
.car-grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-cols), 1fr);
  gap: var(--gap);
}
.car-card {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--c-line);
}
.car-cover {
  height: 150px; position: relative;
  background: linear-gradient(180deg, #eef1f4, #d9dee5);
  display: grid; place-items: center;
}
.car-cover img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
.car-cover-fallback {
  text-align: center; color: #667; font-weight: 700; font-size: 18px;
}
.car-cover-fallback small { display: block; font-weight: 400; font-size: 12px; color: #889; }
.car-body { padding: 12px 14px 14px; }
.car-name { font-size: 16px; }
.car-meta { font-size: 12px; color: var(--c-muted); margin: 2px 0 8px; }
.price-row { display: flex; justify-content: space-between; font-size: 13px; }
.price-row .guide { color: var(--c-muted); }
.quote { color: var(--c-primary); font-size: 18px; font-weight: 700; margin: 4px 0 8px; }
.off { color: #0a7a3e; font-size: 12px; }
.car-actions { display: flex; gap: 8px; margin-top: 10px; }
.car-actions button {
  flex: 1; height: 32px; border-radius: 4px; cursor: pointer; border: 1px solid var(--c-line);
  background: #fff;
}
.car-actions .btn-quote {
  background: var(--c-primary); color: #fff; border-color: var(--c-primary);
}
.car-actions .is-on { background: #fff4f4; color: var(--c-primary); border-color: var(--c-primary); }
.empty { text-align: center; color: var(--c-muted); padding: 40px 0; }

/* 对比表 */
.compare-table-wrap { overflow-x: auto; background: #fff; border-radius: var(--radius); }
.compare-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.compare-table th, .compare-table td {
  border: 1px solid var(--c-line); padding: 10px 12px; text-align: center;
}
.compare-table th { background: #fafafa; width: 120px; }
.compare-hint { padding: 36px; text-align: center; color: var(--c-muted); }

/* 关于 */
.about-grid {
  display: grid; grid-template-columns: 1.5fr 1fr; gap: 20px;
  background: #fff; border-radius: var(--radius); padding: 24px;
}
.about-grid p { color: #555; margin-top: 8px; }
.about-card { background: var(--c-bg); border-radius: var(--radius); padding: 16px 18px; }
.about-card h3 { margin-bottom: 8px; }

/* 页脚 */
.footer {
  background: #2b2b2b; color: #aaa; font-size: 12px;
  padding: 28px 0 48px; text-align: center; line-height: 1.8;
}
.footer a { color: #ccc; }
.footer a:hover { color: #fff; }

/* 弹层 */
.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,.45);
  display: grid; place-items: center; z-index: 40;
}
.modal[hidden] { display: none; }
.modal-card {
  width: min(420px, calc(100% - 32px)); background: #fff;
  border-radius: 12px; padding: 24px; text-align: center;
}
.modal-card p { color: #666; margin: 10px 0; }
.modal-phone { color: var(--c-primary) !important; font-size: 24px; font-weight: 700; }
.modal-card button {
  margin-top: 8px; height: 36px; padding: 0 24px; border: 0; cursor: pointer;
  background: var(--c-primary); color: #fff; border-radius: 6px;
}

.compare-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  background: #fff; border-top: 1px solid var(--c-line);
  box-shadow: 0 -4px 16px rgba(0,0,0,.06);
}
.compare-bar[hidden] { display: none; }
.compare-bar-inner {
  height: 52px; display: flex; align-items: center; justify-content: space-between;
}
.compare-bar a {
  background: var(--c-primary); color: #fff; height: 32px; padding: 0 16px;
  border-radius: 4px; display: grid; place-items: center;
}

@media (max-width: 1000px) {
  :root { --grid-cols: 3; --brand-cols: 4; }
  .nav, .phone { display: none; }
}
@media (max-width: 700px) {
  :root { --grid-cols: 2; --brand-cols: 3; }
  .about-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 24px; }
}