/* ============================================================
   旺马食品 index2（Smartcart 绿色电商风格）
   ============================================================ */
:root {
  --green-900: #1b3a20;
  --green-800: #235b28;
  --green-700: #2e7d32;
  --green-600: #43a047;
  --green-500: #66bb6a;
  --green-300: #a5d6a7;
  --green-200: #c8e6c9;
  --green-100: #e8f5e9;
  --bg: #f6fbf4;
  --white: #ffffff;
  --ink: #2b3a2e;
  --muted: #5b6b5e;
  --accent: #ff8f00;
  --accent-2: #e65100;
  --radius: 16px;
  --shadow-sm: 0 4px 14px rgba(46, 125, 50, 0.08);
  --shadow-md: 0 10px 30px rgba(46, 125, 50, 0.14);
  --shadow-lg: 0 18px 50px rgba(27, 58, 32, 0.18);
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Hiragino Sans", "Noto Sans", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.7; overflow-x: hidden; }
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; }
.container { width: min(1200px, 92%); margin: 0 auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: 999px; font-size: 1rem; font-weight: 700;
  cursor: pointer; border: 2px solid transparent; transition: all .25s ease;
}
.btn-primary { background: var(--green-700); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--green-800); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline { border-color: var(--green-700); color: var(--green-800); background: #fff; box-shadow: var(--shadow-sm); }
.btn-outline:hover { background: var(--green-700); color: #fff; }
.btn-light { background: #fff; color: var(--green-800); }
.btn-light:hover { background: var(--green-100); transform: translateY(-2px); }
.btn-block { width: 100%; }

/* ============================================================
   顶部导航（与 index 一致）
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(244, 251, 244, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(46, 125, 50, 0.12);
  transition: box-shadow .3s ease;
}
.site-header.scrolled { box-shadow: var(--shadow-md); }
.navbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; height: 76px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { width: 42px; height: 42px; border-radius: 50%; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-size: 1.25rem; font-weight: 800; color: var(--green-800); letter-spacing: 1px; }
.brand-sub { font-size: .72rem; color: var(--muted); letter-spacing: .5px; }
.nav-menu { display: flex; align-items: center; gap: 6px; }
.nav-link {
  padding: 10px 16px; border-radius: 999px; font-weight: 600; font-size: .98rem;
  color: var(--ink); transition: color .2s ease, background .2s ease;
}
.nav-link:hover, .nav-link.active { color: var(--green-700); background: var(--green-100); }
.lang-box { display: flex; align-items: center; }
.lang-select {
  appearance: none; -webkit-appearance: none;
  padding: 9px 34px 9px 16px; border: 1.5px solid var(--green-300); border-radius: 999px;
  background: var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%232e7d32' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 14px center;
  font-size: .92rem; color: var(--ink); cursor: pointer; outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.lang-select:focus { border-color: var(--green-600); box-shadow: 0 0 0 3px rgba(102, 187, 106, .25); }
.lang-select option { color: var(--ink); }
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 10px; border: none; background: transparent; cursor: pointer;
}
.nav-toggle span { display: block; width: 100%; height: 3px; border-radius: 3px; background: var(--green-800); transition: transform .3s ease, opacity .3s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative; padding: 80px 0 120px;
  background: linear-gradient(135deg, #dcefdd 0%, var(--bg) 55%, #eaf7ec 100%);
  overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 44px; align-items: center; }
.hero-badge {
  display: inline-block; padding: 8px 18px; margin-bottom: 20px; border-radius: 999px;
  background: #fff; border: 1px solid var(--green-300); color: var(--green-700);
  font-size: .9rem; font-weight: 700; box-shadow: var(--shadow-sm);
}
.hero-title { font-size: clamp(2.1rem, 4.6vw, 3.3rem); line-height: 1.22; font-weight: 800; color: var(--green-900); margin-bottom: 18px; letter-spacing: .5px; }
.hero-subtitle { font-size: 1.1rem; color: var(--muted); max-width: 540px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-art { position: relative; }
.hero-art > svg { width: 100%; height: auto; border-radius: 26px; box-shadow: var(--shadow-lg); }
.hero-chip {
  position: absolute; display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 999px; background: #fff; color: var(--green-800);
  font-size: .84rem; font-weight: 700; box-shadow: var(--shadow-md); white-space: nowrap;
}
.chip-organic { top: 20px; left: -18px; }
.chip-cert { top: 62px; right: -14px; }
.chip-fresh { bottom: 34px; left: -8px; }
.hero-wave { position: absolute; bottom: -2px; left: 0; right: 0; height: 90px; background: var(--bg); clip-path: ellipse(75% 100% at 50% 100%); }

/* ============================================================
   特性条
   ============================================================ */
.features { background: var(--bg); padding: 0 0 70px; }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.feature {
  display: flex; align-items: center; gap: 16px; padding: 22px 20px;
  background: #fff; border: 1px solid var(--green-200); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); transition: transform .3s, box-shadow .3s;
}
.feature:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.feature-icon { font-size: 2rem; flex: 0 0 auto; }
.feature h3 { font-size: 1.05rem; color: var(--green-800); margin-bottom: 4px; }
.feature p { font-size: .86rem; color: var(--muted); }

/* ============================================================
   通用板块
   ============================================================ */
.section { padding: 84px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.kicker {
  display: inline-block; padding: 6px 16px; margin-bottom: 14px; border-radius: 999px;
  background: var(--green-100); color: var(--green-700); font-size: .84rem; font-weight: 700; letter-spacing: 1px;
}
.section-title { font-size: clamp(1.7rem, 3.4vw, 2.4rem); font-weight: 800; color: var(--green-900); margin-bottom: 16px; }
.section-text { color: var(--muted); font-size: 1.05rem; }

/* ============================================================
   公司介绍
   ============================================================ */
.about { background: #fff; }
.about-split {
  display: grid; grid-template-columns: 2fr 3fr; gap: 28px;
  align-items: stretch; margin-bottom: 54px;
}
.about-image { border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-md); height: 320px; }
.about-img-scene { display: block; width: 100%; height: 100%; }
.about-cards { display: flex; flex-direction: column; gap: 20px; }
.about-card {
  flex: 1; display: flex; align-items: center; gap: 16px;
  background: var(--bg); border: 1px solid var(--green-200); border-radius: var(--radius);
  padding: 18px 22px; box-shadow: var(--shadow-sm); transition: transform .3s, box-shadow .3s;
}
.about-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.about-icon { width: 44px; height: 44px; flex: 0 0 44px; }
.about-card p { flex: 1; color: var(--muted); font-size: .95rem; }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  background: linear-gradient(135deg, var(--green-600), var(--green-800));
  border-radius: 22px; padding: 42px 26px; box-shadow: var(--shadow-lg);
}
.stat { text-align: center; color: #fff; }
.stat-value { display: block; font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 6px; }
.stat-label { font-size: .94rem; opacity: .92; }

/* ============================================================
   产品轮播
   ============================================================ */
.products { background: var(--bg); }
.products-slider { position: relative; }
.products-viewport { position: relative; overflow: hidden; }
.products-track { display: flex; gap: 26px; transition: transform .5s ease; will-change: transform; }
.products-track .product-card { flex: 0 0 calc((100% - 52px) / 3); }
.product-card {
  position: relative; display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--green-200);
  border-radius: 20px; padding: 30px 24px 26px; text-align: center;
  box-shadow: var(--shadow-sm); overflow: hidden;
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
.product-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: var(--green-500); }
.product-emoji { font-size: 3.4rem; margin-bottom: 12px; filter: drop-shadow(0 6px 10px rgba(46,125,50,.15)); }
.product-tag {
  position: absolute; top: 16px; right: 16px; padding: 4px 12px; border-radius: 999px;
  background: var(--accent); color: #fff; font-size: .76rem; font-weight: 700;
}
.product-card h3 { color: var(--green-800); font-size: 1.14rem; margin-bottom: 8px; }
.product-card p { color: var(--muted); font-size: .9rem; min-height: 52px; margin-bottom: 16px; }

.product-cart {
  display: flex; align-items: center; justify-content: center;
  width: 100%; margin-top: auto; padding: 11px; border: none; border-radius: 999px;
  background: var(--green-100); color: var(--green-800); font-weight: 700; font-size: .92rem; cursor: pointer;
  transition: background .25s, color .25s;
}
.product-cart:hover { background: var(--green-700); color: #fff; }
.slider-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 46px; height: 46px; border-radius: 50%; border: 2px solid var(--green-300);
  background: #fff; color: var(--green-700); font-size: 1.6rem; line-height: 1; cursor: pointer;
  display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-sm); z-index: 5;
  transition: background .25s, color .25s, box-shadow .25s;
}
.slider-arrow:hover { background: var(--green-700); color: #fff; box-shadow: var(--shadow-md); }
.slider-arrow svg { width: 20px; height: 20px; }
.slider-arrow.prev { left: 8px; }
.slider-arrow.next { right: 8px; }
.slider-arrow[hidden] { display: none; }
.slider-dots { display: flex; justify-content: center; gap: 8px; margin-top: 26px; }
.slider-dot { width: 10px; height: 10px; border-radius: 50%; padding: 0; border: none; background: var(--green-300); cursor: pointer; transition: background .25s, transform .25s; }
.slider-dot.active { background: var(--green-700); transform: scale(1.3); }

/* ============================================================
   绿色环保 / 认证
   ============================================================ */
.green { background: linear-gradient(180deg, #eaf7ec 0%, var(--bg) 100%); }
.green-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.green-card {
  background: #fff; border: 1px solid var(--green-200); border-radius: var(--radius);
  padding: 30px 24px; text-align: center; box-shadow: var(--shadow-sm);
  transition: transform .3s, box-shadow .3s;
}
.green-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.green-icon {
  width: 72px; height: 72px; margin: 0 auto 18px; border-radius: 50%; background: var(--green-100);
  display: flex; align-items: center; justify-content: center; font-size: 2rem;
}
.green-card h3 { color: var(--green-800); margin-bottom: 10px; font-size: 1.1rem; }
.green-card p { color: var(--muted); font-size: .94rem; }

.certs { background: #fff; }
.certs-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 18px; max-width: 980px; margin: 0 auto; }
.cert-badge {
  display: flex; align-items: center; gap: 10px; background: var(--bg);
  border: 1px solid var(--green-200); border-radius: 999px; padding: 14px 24px;
  box-shadow: var(--shadow-sm); font-weight: 700; color: var(--green-800); font-size: .94rem;
  transition: transform .25s, box-shadow .25s;
}
.cert-badge:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.cert-mark { font-size: 1.3rem; }

/* ============================================================
   联系我们
   ============================================================ */
.contact { background: var(--bg); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.contact-info-title { font-size: 1.3rem; color: var(--green-800); margin-bottom: 22px; }
.contact-list { display: grid; gap: 18px; margin-bottom: 26px; }
.contact-list li { display: flex; flex-direction: column; gap: 2px; }
.contact-label { font-size: .82rem; font-weight: 700; color: var(--green-600); text-transform: uppercase; letter-spacing: .5px; }
.contact-list a, .contact-list span:not(.contact-label) { font-size: 1.05rem; color: var(--ink); }
.contact-list a:hover { color: var(--green-700); }
.contact-map { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--green-200); background: var(--green-100); }
.contact-map-img { display: block; width: 100%; height: 213px; }
.contact-map-link { display: inline-block; margin-top: 10px; font-size: .88rem; font-weight: 600; color: var(--green-700); }
.contact-map-link:hover { color: var(--green-800); text-decoration: underline; }

.contact-form {
  background: #fff; border: 1px solid var(--green-200); border-radius: var(--radius);
  padding: 34px; box-shadow: var(--shadow-sm);
}
.contact-form h3 { color: var(--green-800); margin-bottom: 22px; font-size: 1.3rem; }
.form-row { margin-bottom: 18px; }
.form-row label { display: block; font-size: .9rem; font-weight: 600; color: var(--green-800); margin-bottom: 7px; }
.form-row input, .form-row textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--green-300); border-radius: 10px;
  background: var(--bg); font-family: inherit; font-size: .98rem; color: var(--ink); outline: none; resize: vertical;
  transition: border-color .2s, box-shadow .2s;
}
.form-row input:focus, .form-row textarea:focus { border-color: var(--green-600); box-shadow: 0 0 0 3px rgba(102,187,106,.25); }
.form-note { margin-top: 14px; font-size: .82rem; color: var(--muted); text-align: center; }


/* ============================================================
   页脚
   ============================================================ */
.site-footer { background: #142c18; color: #cfe0d2; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding: 60px 0 42px; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand .brand-name { color: #fff; }
.footer-col p { color: #a8c8ad; font-size: .95rem; max-width: 340px; }
.footer-col h4 { color: #fff; font-size: 1.05rem; margin-bottom: 16px; }
.footer-links, .footer-contact { display: grid; gap: 10px; }
.footer-links a, .footer-contact li { color: #a8c8ad; font-size: .94rem; transition: color .2s; }
.footer-links a:hover { color: var(--green-300); }
.footer-bottom { border-top: 1px solid rgba(165,214,167,.15); }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding: 20px 0; font-size: .86rem; color: #a8c8ad; }
.footer-bottom-inner span:first-child { font-weight: 700; color: var(--green-300); }

/* ============================================================
   动画 / 提示
   ============================================================ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
.product-card.reveal, .about-card.reveal { transition: opacity .6s ease, transform .3s ease, box-shadow .3s ease; }
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translate(-50%, 20px);
  background: var(--green-800); color: #fff; padding: 14px 26px; border-radius: 999px;
  box-shadow: var(--shadow-lg); font-size: .95rem; font-weight: 600;
  opacity: 0; pointer-events: none; transition: opacity .35s, transform .35s; z-index: 200;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .green-grid { grid-template-columns: repeat(2, 1fr); }
  .products-track .product-card { flex: 0 0 calc((100% - 26px) / 2); }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 26px; }
}

@media (max-width: 768px) {
  html { scroll-padding-top: 90px; }
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed; top: 76px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: var(--bg); border-bottom: 1px solid var(--green-200);
    padding: 14px 6%; box-shadow: var(--shadow-md);
    transform: translateY(-130%); transition: transform .35s ease;
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-link { display: block; text-align: center; padding: 14px; }

  .hero { padding: 56px 0 110px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { order: -1; max-width: 460px; margin: 0 auto; }
  .hero-text { text-align: center; }
  .hero-subtitle { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .chip-organic { left: 6px; }
  .chip-cert { right: 6px; }

  .features-grid { grid-template-columns: 1fr; gap: 14px; }
  .section { padding: 64px 0; }
  .about-split { grid-template-columns: 1fr; }
  .about-image { height: 220px; }
  .about-card { padding: 16px 18px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; padding: 44px 0 30px; }
  .footer-bottom-inner { justify-content: center; text-align: center; }
  .topbar-tag { display: none; }
}

@media (max-width: 480px) {
  .green-grid { grid-template-columns: 1fr; }
  .products-track .product-card { flex: 0 0 100%; }
  .stats { grid-template-columns: 1fr 1fr; gap: 20px; padding: 32px 16px; }
  .brand-name { font-size: 1.08rem; }
  .slider-arrow { width: 38px; height: 38px; font-size: 1.3rem; }
}

/* ============================================================
   产品详情页
   ============================================================ */
.detail { background: var(--bg); padding: 70px 0; }
.detail-back { display: inline-block; margin-bottom: 24px; color: var(--green-700); font-weight: 600; }
.detail-back:hover { color: var(--green-800); text-decoration: underline; }
.detail-layout { display: grid; grid-template-columns: 400px 1fr; gap: 44px; align-items: center; }
.detail-visual {
  background: #fff; border: 1px solid var(--green-200); border-radius: 24px;
  padding: 30px; box-shadow: var(--shadow-md);
}
.detail-visual svg { width: 100%; height: auto; }
.detail-main {
  background: #fff; border: 1px solid var(--green-200); border-radius: 24px;
  padding: 40px 38px; box-shadow: var(--shadow-md);
}
.detail-tag {
  display: inline-block; padding: 5px 16px; border-radius: 999px;
  background: var(--accent); color: #fff; font-size: .84rem; font-weight: 700; margin-bottom: 16px;
}
.detail-name { font-size: clamp(1.7rem, 3vw, 2.3rem); color: var(--green-900); margin-bottom: 14px; }
.detail-desc { color: var(--muted); font-size: 1.06rem; margin-bottom: 26px; }
.detail-specs { width: 100%; border-collapse: collapse; margin-bottom: 26px; }
.detail-specs th, .detail-specs td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--green-100); font-size: .96rem; }
.detail-specs th { color: var(--green-700); font-weight: 700; width: 132px; white-space: nowrap; background: var(--bg); }
.detail-specs tr:last-child th, .detail-specs tr:last-child td { border-bottom: none; }
.detail-specs td { color: var(--ink); }
.detail-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* 推荐产品 */
.related { background: var(--bg); padding-top: 0; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  background: #fff; border: 1px solid var(--green-200); border-radius: 20px; padding: 26px 20px;
  box-shadow: var(--shadow-sm); transition: transform .3s, box-shadow .3s, border-color .3s;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--green-500); }
.related-emoji { font-size: 3rem; margin-bottom: 8px; filter: drop-shadow(0 6px 10px rgba(46,125,50,.15)); }
.related-tag { display: inline-block; padding: 3px 12px; border-radius: 999px; background: var(--accent); color: #fff; font-size: .76rem; font-weight: 700; margin-bottom: 10px; }
.related-card h3 { color: var(--green-800); font-size: 1.05rem; margin-bottom: 14px; }
.related-btn { padding: 8px 22px; border-radius: 999px; background: var(--green-100); color: var(--green-800); font-weight: 700; font-size: .88rem; transition: background .25s, color .25s; }
.related-card:hover .related-btn { background: var(--green-700); color: #fff; }

@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .detail-layout { grid-template-columns: 1fr; }
  .detail-main { padding: 28px 22px; }
}

@media (max-width: 480px) {
  .related-grid { grid-template-columns: 1fr; }
}