/* ============================================================
   冰淇淋食品厂官网 前端样式
   主色：清新蓝 + 奶油白，点缀草莓粉 / 薄荷绿
   ============================================================ */

:root {
  --blue-700: #0e7490;
  --blue-600: #0891b2;
  --blue-500: #06b6d4;
  --blue-100: #cffafe;
  --pink-500: #f472b6;
  --pink-100: #fce7f3;
  --mint-500: #34d399;
  --cream: #fffdf7;
  --ink: #1f2937;
  --ink-2: #6b7280;
  --line: #e5e7eb;
  --bg-alt: #f2fbfd;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(8, 145, 178, .10);
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: #fff;
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { color: var(--blue-600); text-decoration: none; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 860px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all .2s ease;
}
.btn-primary { background: linear-gradient(135deg, var(--blue-600), var(--blue-500)); color: #fff; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(6, 182, 212, .35); }
.btn-ghost { background: rgba(255,255,255,.16); color: #fff; border-color: rgba(255,255,255,.7); backdrop-filter: blur(4px); }
.btn-ghost:hover { background: rgba(255,255,255,.28); }
.btn-outline { background: #fff; color: var(--blue-600); border-color: var(--blue-500); }
.btn-outline:hover { background: var(--blue-100); }

/* ---------- 滚动公告 ---------- */
.marquee-bar { background: linear-gradient(90deg, var(--pink-500), #fb7185); color: #fff; overflow: hidden; }
.marquee-inner { display: flex; align-items: center; max-width: 1200px; margin: 0 auto; padding: 6px 20px; }
.marquee-label {
  flex: none; background: rgba(255,255,255,.22); padding: 2px 12px;
  border-radius: 999px; font-size: 12px; margin-right: 16px; font-weight: 600;
}
.marquee-track { overflow: hidden; white-space: nowrap; flex: 1; }
.marquee-text {
  display: inline-block;
  padding-left: 100%;
  animation: marquee 22s linear infinite;
  font-size: 14px;
}
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-100%); } }

/* ---------- 顶部导航 ---------- */
.site-header { background: rgba(255,255,255,.96); backdrop-filter: blur(8px); position: sticky; top: 0; z-index: 50; box-shadow: 0 2px 12px rgba(15,23,42,.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 20px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { width: 48px; height: 48px; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; line-height: 1.3; }
.brand-text strong { font-size: 20px; color: var(--ink); }
.brand-text em { font-style: normal; font-size: 12px; color: var(--ink-2); }
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 8px 16px; border-radius: 999px; font-size: 15px; color: var(--ink);
  transition: all .2s;
}
.main-nav a:hover { background: var(--blue-100); color: var(--blue-700); }
.main-nav a.active { background: var(--blue-600); color: #fff; }
.main-nav .nav-admin { font-size: 13px; color: var(--ink-2); border: 1px solid var(--line); }
.main-nav .nav-admin:hover { border-color: var(--blue-500); color: var(--blue-600); background: #fff; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; border-radius: 2px; }

/* ---------- 首屏 ---------- */
.hero {
  position: relative; min-height: 560px; display: flex; align-items: center;
  background-size: cover; background-position: center;
}
.hero-mask { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,51,68,.72), rgba(8,51,68,.25)); }
.hero-content { position: relative; z-index: 1; color: #fff; max-width: 640px; }
.hero-title { font-size: clamp(30px, 4.5vw, 52px); line-height: 1.25; font-weight: 800; margin-bottom: 18px; }
.hero-subtitle { font-size: 17px; opacity: .95; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 通用区块 ---------- */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }
.section-title { font-size: 30px; font-weight: 800; text-align: center; margin-bottom: 10px; }
.section-title::after { content: ""; display: block; width: 56px; height: 4px; border-radius: 2px; background: linear-gradient(90deg, var(--pink-500), var(--blue-500)); margin: 14px auto 0; }
.section-sub { text-align: center; color: var(--ink-2); margin: 14px 0 36px; }
.section-more { text-align: center; margin-top: 36px; }
.empty-tip { text-align: center; color: var(--ink-2); padding: 40px 0; }

/* 首页：简介 */
.intro-wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.intro-body { color: var(--ink-2); margin: 20px 0 26px; }
.intro-img img { border-radius: var(--radius); box-shadow: var(--shadow); height: 380px; width: 100%; object-fit: cover; }

/* 产品卡片 */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: all .25s ease; display: block;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--blue-100); }
.product-img { position: relative; aspect-ratio: 1/1; background: var(--bg-alt); overflow: hidden; }
.product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.product-card:hover .product-img img { transform: scale(1.05); }
.product-tag {
  position: absolute; top: 12px; left: 12px; background: rgba(255,255,255,.92);
  color: var(--blue-700); font-size: 12px; padding: 3px 10px; border-radius: 999px; font-weight: 600;
}
.product-info { padding: 16px 16px 18px; }
.product-name { font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.product-sub { font-size: 13px; color: var(--ink-2); margin-bottom: 8px; min-height: 20px; }
.product-specs { font-size: 13px; color: var(--ink-2); margin-bottom: 10px; }
.product-price { font-size: 14px; color: var(--ink-2); }
.product-price b { color: var(--pink-500); font-size: 20px; margin-left: 4px; }

/* 优势 */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 20px; }
.feature-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 26px; text-align: center; transition: all .25s;
}
.feature-card:hover { box-shadow: var(--shadow); border-color: var(--blue-100); }
.feature-icon { font-size: 40px; margin-bottom: 14px; }
.feature-card h3 { font-size: 18px; margin-bottom: 10px; }
.feature-card p { color: var(--ink-2); font-size: 14px; }

/* CTA 条 */
.cta-strip { background: linear-gradient(135deg, var(--blue-700), var(--blue-500)); color: #fff; padding: 46px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.cta-inner h2 { font-size: 26px; margin-bottom: 6px; }
.cta-inner p { opacity: .92; }
.cta-strip-inline { border-radius: var(--radius); margin-top: 48px; padding: 34px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* 内页横幅 */
.page-banner { background: linear-gradient(120deg, var(--blue-700), var(--blue-500)); color: #fff; padding: 66px 0 58px; }
.page-banner h1 { font-size: 34px; }
.page-banner p { opacity: .92; margin-top: 8px; }
.page-banner-sm { padding: 34px 0 30px; }
.breadcrumb a { color: #fff; opacity: .85; }
.breadcrumb a:hover { opacity: 1; }

/* 筛选栏 */
.filter-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 34px; }
.cat-tabs { display: flex; flex-wrap: wrap; gap: 10px; }
.cat-tabs a {
  padding: 8px 18px; border-radius: 999px; background: #fff; border: 1px solid var(--line);
  color: var(--ink); font-size: 14px; transition: all .2s;
}
.cat-tabs a:hover { border-color: var(--blue-500); color: var(--blue-600); }
.cat-tabs a.active { background: var(--blue-600); border-color: var(--blue-600); color: #fff; }
.search-form { display: flex; gap: 8px; }
.search-form input {
  padding: 9px 14px; border: 1px solid var(--line); border-radius: 999px; width: 220px; outline: none; font-size: 14px;
}
.search-form input:focus { border-color: var(--blue-500); }
.search-form button {
  padding: 9px 22px; border: 0; border-radius: 999px; background: var(--blue-600); color: #fff; cursor: pointer; font-size: 14px;
}

/* 分页 */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; flex-wrap: wrap; }
.pagination a {
  padding: 8px 14px; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); font-size: 14px; transition: all .2s;
}
.pagination a:hover { border-color: var(--blue-500); color: var(--blue-600); }
.pagination a.active { background: var(--blue-600); color: #fff; border-color: var(--blue-600); }

/* 详情页 */
.detail-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.detail-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: var(--bg-alt); }
.detail-img img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.detail-name { font-size: 30px; font-weight: 800; margin: 12px 0 6px; }
.detail-sub { color: var(--ink-2); margin-bottom: 20px; }
.detail-table { width: 100%; border-collapse: collapse; margin-bottom: 24px; }
.detail-table th, .detail-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); font-size: 15px; }
.detail-table th { width: 130px; color: var(--ink-2); font-weight: 500; background: var(--bg-alt); }
.price-cell { color: var(--pink-500); font-size: 24px; font-weight: 800; }
.detail-contact { background: var(--bg-alt); border-radius: var(--radius); padding: 20px 22px; }
.detail-contact p { color: var(--ink-2); font-size: 14px; }
.detail-phone { color: var(--blue-700) !important; font-size: 20px !important; font-weight: 700; margin: 6px 0 14px; }
.detail-desc { margin-top: 56px; }
.desc-body { color: var(--ink-2); margin-top: 22px; }

/* 关于 */
.about-wrap { display: grid; grid-template-columns: 5fr 7fr; gap: 40px; align-items: start; }
.about-img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; height: 360px; object-fit: cover; }
.about-body { color: var(--ink-2); }

/* 联系 */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-card { text-align: center; background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius); padding: 34px 20px; }
.contact-card-wide { grid-column: span 3; }
.contact-icon { font-size: 34px; margin-bottom: 12px; }
.contact-card h3 { margin-bottom: 10px; }
.contact-card p { color: var(--ink-2); font-size: 15px; }
.contact-card a { color: var(--blue-700); }
.map-box { margin-top: 40px; background: var(--bg-alt); border: 1px dashed var(--line); border-radius: var(--radius); padding: 18px; color: var(--ink-2); font-size: 14px; }
.map-placeholder {
  margin-top: 12px; height: 220px; display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--line); border-radius: 10px; color: var(--ink-2); font-size: 15px;
}

/* 页脚 */
.site-footer { background: #0b3b4d; color: #cfeef5; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.4fr; gap: 40px; padding: 52px 20px 40px; }
.footer-col h4 { color: #fff; font-size: 17px; margin-bottom: 16px; }
.footer-col p, .footer-col li { font-size: 14px; margin-bottom: 8px; }
.footer-col a { color: #cfeef5; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 16px 20px; font-size: 13px; }
.footer-bottom-inner { display: flex; align-items: center; justify-content: center; gap: 8px 18px; flex-wrap: wrap; }
.footer-copy { color: #cfeef5; }
.footer-beian a { color: #9ad6e6; margin: 0 4px; }
.footer-beian a:hover { color: #fff; }
.footer-admin { color: #9ad6e6; margin-left: 10px; }

/* ---------- 弹窗公告 ---------- */
.popup-mask {
  position: fixed; inset: 0; z-index: 999; background: rgba(15,23,42,.55);
  display: none; align-items: center; justify-content: center; padding: 20px;
}
.popup-box {
  position: relative; width: 100%; max-width: 460px; background: #fff;
  border-radius: 18px; padding: 30px 28px 28px; box-shadow: 0 20px 60px rgba(0,0,0,.25);
  animation: popIn .25s ease;
}
@keyframes popIn { from { transform: scale(.92); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.popup-close {
  position: absolute; top: 12px; right: 14px; background: none; border: 0;
  font-size: 26px; line-height: 1; color: var(--ink-2); cursor: pointer;
}
.popup-close:hover { color: var(--ink); }
.popup-title { font-size: 19px; font-weight: 800; margin-bottom: 14px; color: var(--blue-700); }
.popup-img { border-radius: 10px; margin-bottom: 14px; width: 100%; }
.popup-content { color: var(--ink-2); font-size: 15px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute; top: 100%; left: 0; right: 0; background: #fff;
    flex-direction: column; align-items: stretch; padding: 10px 20px 16px;
    box-shadow: 0 10px 24px rgba(0,0,0,.08); display: none;
  }
  .main-nav.open { display: flex; }
  .intro-wrap, .detail-wrap, .about-wrap { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-card-wide { grid-column: span 1; }
  .hero { min-height: 440px; }
}
@media (max-width: 600px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .search-form input { width: 100%; flex: 1; }
  .section { padding: 48px 0; }
}