:root {
  --green: #2e9e5b;
  --green-d: #1f7d45;
  --green-l: #eaf6ee;
  --ink: #1f2a24;
  --muted: #5d6b63;
  --line: #e3e9e3;
  --bg: #ffffff;
  --bg-soft: #f6f9f5;
  --shadow: 0 6px 20px rgba(31, 42, 36, 0.08);
  --radius: 12px;
  --maxw: 1180px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 18px; }

/* ---------- 页头 ---------- */
.site-head {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(1.2) blur(6px);
}
.head-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 18px;
  height: 66px; display: flex; align-items: center; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 9px; flex-shrink: 0; }
.leaf { flex-shrink: 0; }
.brand-name {
  font-weight: 700; font-size: 16px; color: var(--ink);
  letter-spacing: 0.2px; white-space: nowrap;
}
.nav { display: flex; gap: 4px; margin-left: 14px; }
.nav-link {
  padding: 8px 14px; border-radius: 8px; color: var(--muted);
  font-size: 15px; transition: 0.18s;
}
.nav-link:hover { color: var(--green); background: var(--green-l); }
.nav-link.active { color: var(--green-d); background: var(--green-l); font-weight: 600; }
.head-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.cart-btn {
  position: relative; padding: 8px 14px; border-radius: 8px;
  color: var(--ink); font-size: 15px; border: 1px solid var(--line);
}
.cart-btn:hover { border-color: var(--green); color: var(--green); }
.cart-badge {
  position: absolute; top: -7px; right: -7px; min-width: 18px; height: 18px;
  padding: 0 4px; border-radius: 9px; background: var(--green); color: #fff;
  font-size: 11px; line-height: 18px; text-align: center;
}
.btn-link { color: var(--muted); font-size: 15px; }
.btn-link:hover { color: var(--green); }
.btn-primary-sm {
  padding: 7px 16px; border-radius: 8px; background: var(--green);
  color: #fff; font-size: 15px; font-weight: 600;
}
.btn-primary-sm:hover { background: var(--green-d); }
.user-menu { position: relative; }
.user-name { padding: 8px 12px; border-radius: 8px; background: var(--green-l); color: var(--green-d); font-size: 14px; cursor: pointer; }
.user-drop {
  display: none; position: absolute; right: 0; top: 46px; min-width: 130px;
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  box-shadow: var(--shadow); overflow: hidden;
}
.user-menu:hover .user-drop { display: block; }
.user-drop a { display: block; padding: 10px 14px; font-size: 14px; color: var(--muted); }
.user-drop a:hover { background: var(--green-l); color: var(--green-d); }
.menu-toggle { display: none; flex-direction: column; gap: 4px; background: none; border: 0; cursor: pointer; padding: 6px; }
.menu-toggle span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; }
.mobile-nav { display: none; flex-direction: column; border-top: 1px solid var(--line); background: #fff; }
.mobile-nav.open { display: flex; }
.mobile-nav a { padding: 13px 18px; border-bottom: 1px solid var(--line); color: var(--muted); }

/* ---------- 通用按钮/区块 ---------- */
.btn {
  display: inline-block; padding: 11px 22px; border-radius: 9px;
  background: var(--green); color: #fff; font-size: 15px; font-weight: 600;
  border: 0; cursor: pointer; transition: 0.18s;
}
.btn:hover { background: var(--green-d); }
.btn-outline {
  display: inline-block; padding: 11px 22px; border-radius: 9px;
  border: 1px solid var(--green); color: var(--green-d); font-size: 15px; font-weight: 600; background: #fff;
}
.btn-outline:hover { background: var(--green-l); }
.btn-block { width: 100%; text-align: center; }
.section { padding: 54px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { text-align: center; margin-bottom: 30px; }
.section-title { font-size: 26px; font-weight: 700; margin: 0 0 8px; }
.section-sub { color: var(--muted); margin: 0; font-size: 15px; }

/* ---------- 首页 Hero ---------- */
.hero { background: linear-gradient(135deg, #eaf6ee 0%, #ffffff 60%); border-bottom: 1px solid var(--line); }
.hero-inner { max-width: var(--maxw); margin: 0 auto; padding: 64px 18px; text-align: center; }
.hero-title { font-size: 36px; font-weight: 800; margin: 0 0 14px; letter-spacing: 0.5px; }
.hero-sub { font-size: 17px; color: var(--muted); max-width: 720px; margin: 0 auto 26px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; max-width: 820px; margin: 46px auto 0; }
.mod-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; text-align: left; box-shadow: var(--shadow); transition: 0.2s;
}
.mod-card:hover { transform: translateY(-3px); border-color: var(--green); }
.mod-card h3 { margin: 14px 0 8px; font-size: 20px; }
.mod-card p { color: var(--muted); margin: 0 0 16px; font-size: 14px; }
.mod-icon { width: 46px; height: 46px; border-radius: 12px; background: var(--green-l); display: flex; align-items: center; justify-content: center; }

/* ---------- 筛选/网格 ---------- */
.filters { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-bottom: 26px; }
.filter-btn {
  padding: 8px 16px; border-radius: 20px; border: 1px solid var(--line);
  background: #fff; color: var(--muted); font-size: 14px; cursor: pointer;
}
.filter-btn:hover { border-color: var(--green); color: var(--green); }
.filter-btn.active { background: var(--green); color: #fff; border-color: var(--green); }
.search-bar { max-width: 460px; margin: 0 auto 26px; display: flex; gap: 10px; }
.search-bar input {
  flex: 1; padding: 11px 14px; border: 1px solid var(--line); border-radius: 9px; font-size: 15px;
}
.search-bar input:focus { outline: none; border-color: var(--green); }
.grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: 0.2s; display: flex; flex-direction: column; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card-img { aspect-ratio: 4 / 3; overflow: hidden; background: var(--bg-soft); }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: 0.3s; }
.card:hover .card-img img { transform: scale(1.04); }
.card-body { padding: 14px 15px 16px; display: flex; flex-direction: column; flex: 1; }
.card-title { font-size: 15px; font-weight: 600; margin: 0 0 8px; line-height: 1.45; }
.card-meta { color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.card-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.tag { font-size: 12px; color: var(--green-d); background: var(--green-l); padding: 2px 8px; border-radius: 6px; }
.price-row { margin-top: auto; display: flex; align-items: baseline; gap: 8px; }
.price { color: var(--green-d); font-weight: 700; font-size: 18px; }
.price-old { color: var(--muted); text-decoration: line-through; font-size: 13px; }
.card-foot { display: flex; gap: 8px; margin-top: 12px; }
.card-foot .btn, .card-foot .btn-outline { flex: 1; text-align: center; padding: 9px 0; font-size: 14px; }

/* ---------- 商品详情 ---------- */
.product-detail { display: grid; grid-template-columns: 1.15fr 1fr; gap: 36px; align-items: start; }
.gallery { display: block; }
.gallery-main { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--bg-soft); aspect-ratio: 4/3; max-width: 560px; }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; display: block; }

.detail-images { margin-top: 48px; }
.detail-images-title { font-size: 20px; margin: 0 0 20px; padding-left: 12px; border-left: 4px solid var(--green); line-height: 1.2; }
.detail-images-list { display: flex; flex-direction: column; gap: 12px; max-width: 760px; margin: 0 auto; }
.detail-image-item { width: 100%; border-radius: 10px; overflow: hidden; background: var(--bg-soft); }
.detail-image-item img { display: block; width: 100%; height: auto; }
.product-info h1 { font-size: 24px; margin: 0 0 10px; }
.product-info .price-row { margin: 14px 0; }
.product-info .price { font-size: 26px; }
.detail-tags { margin: 10px 0; }
.spec-line { color: var(--muted); font-size: 14px; margin: 6px 0; }
.detail-desc { margin: 16px 0; padding: 16px; background: var(--bg-soft); border-radius: 10px; font-size: 15px; }
.qty-row { display: flex; align-items: center; gap: 12px; margin: 18px 0; }
.qty-row label { color: var(--muted); }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.qty button { width: 36px; height: 36px; border: 0; background: #fff; font-size: 18px; cursor: pointer; color: var(--ink); }
.qty button:hover { background: var(--green-l); color: var(--green-d); }
.qty input { width: 50px; height: 36px; border: 0; text-align: center; font-size: 15px; border-left: 1px solid var(--line); border-right: 1px solid var(--line); }
.add-actions { display: flex; gap: 12px; }
.add-actions .btn, .add-actions .btn-outline { flex: 1; text-align: center; }
.merchant-card { margin-top: 28px; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; background: #fff; }
.merchant-card h4 { margin: 0 0 12px; font-size: 16px; display: flex; align-items: center; gap: 8px; }
.merchant-card .m-row { display: flex; justify-content: space-between; font-size: 14px; padding: 7px 0; border-bottom: 1px dashed var(--line); }
.merchant-card .m-row:last-child { border-bottom: 0; }
.merchant-card .m-row span:first-child { color: var(--muted); }

/* ---------- 购物车 ---------- */
.cart-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.cart-table th, .cart-table td { padding: 14px; text-align: left; border-bottom: 1px solid var(--line); font-size: 14px; }
.cart-table th { background: var(--bg-soft); color: var(--muted); font-weight: 600; }
.cart-prod { display: flex; align-items: center; gap: 12px; }
.cart-prod img { width: 64px; height: 64px; border-radius: 8px; object-fit: cover; }
.qty-mini { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.qty-mini button { width: 30px; height: 30px; border: 0; background: #fff; cursor: pointer; }
.qty-mini input { width: 42px; height: 30px; border: 0; text-align: center; border-left: 1px solid var(--line); border-right: 1px solid var(--line); }
.cart-summary { margin-top: 22px; display: flex; justify-content: flex-end; align-items: center; gap: 24px; flex-wrap: wrap; }
.cart-total { font-size: 18px; }
.cart-total b { color: var(--green-d); font-size: 24px; }
.link-del { color: #c0443a; font-size: 13px; }
.link-del:hover { text-decoration: underline; }

/* ---------- 信息发布 ---------- */
.info-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.info-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: 0.2s; display: flex; flex-direction: column; }
.info-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.info-card .card-img { aspect-ratio: 4/3; }
.info-cat { display: inline-block; font-size: 12px; color: var(--green-d); background: var(--green-l); padding: 2px 9px; border-radius: 6px; margin-bottom: 8px; }
.info-detail { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 34px; align-items: start; }
.info-cover { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.info-cover img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.info-body h1 { font-size: 24px; margin: 0 0 10px; }
.info-meta { color: var(--muted); font-size: 14px; margin-bottom: 14px; }
.info-content { font-size: 16px; line-height: 1.8; }
.publisher-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; background: #fff; margin-top: 8px; }
.publisher-card h4 { margin: 0 0 12px; font-size: 16px; }
.pub-row { display: flex; justify-content: space-between; font-size: 14px; padding: 8px 0; border-bottom: 1px dashed var(--line); }
.pub-row:last-child { border-bottom: 0; }
.pub-row span:first-child { color: var(--muted); }
.phone-mask { font-weight: 700; color: var(--ink); letter-spacing: 1px; }
.login-cta { margin-top: 14px; padding: 12px 14px; background: var(--green-l); border-radius: 10px; font-size: 14px; color: var(--green-d); }
.login-cta a { color: var(--green-d); font-weight: 700; text-decoration: underline; }

/* ---------- 表单/认证 ---------- */
.auth-wrap { max-width: 460px; margin: 40px auto; }
.auth-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; background: #fff; box-shadow: var(--shadow); }
.auth-card h2 { margin: 0 0 6px; font-size: 22px; }
.auth-card .hint { color: var(--muted); font-size: 14px; margin: 0 0 20px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 14px; margin-bottom: 6px; color: var(--ink); }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 9px; font-size: 15px; font-family: inherit;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { outline: none; border-color: var(--green); }
.form-row textarea { resize: vertical; min-height: 110px; }
.agree-row { display: flex; align-items: flex-start; gap: 9px; font-size: 14px; color: var(--muted); margin: 6px 0 18px; }
.agree-row input { margin-top: 3px; }
.agree-row a { color: var(--green-d); }
.auth-switch { text-align: center; margin-top: 18px; font-size: 14px; color: var(--muted); }
.auth-switch a { color: var(--green-d); font-weight: 600; }
.form-msg { font-size: 14px; margin: 4px 0 12px; min-height: 18px; }
.form-msg.err { color: #c0443a; }
.form-msg.ok { color: var(--green-d); }

/* ---------- 关于/账户 ---------- */
.about-hero { background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.about-hero .container { padding: 50px 18px; }
.about-hero h1 { font-size: 30px; margin: 0 0 10px; }
.about-hero p { color: var(--muted); max-width: 760px; }
.info-table { width: 100%; border-collapse: collapse; margin-top: 10px; }
.info-table th, .info-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); font-size: 15px; vertical-align: top; }
.info-table th { color: var(--muted); font-weight: 600; width: 160px; }
.account-box { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: #fff; max-width: 560px; }
.account-box h2 { margin: 0 0 16px; }
.notice { padding: 14px 16px; background: var(--green-l); border-radius: 10px; color: var(--green-d); font-size: 14px; margin: 16px 0; }

/* ---------- 页脚 ---------- */
.site-foot { background: #183024; color: #cfe3d6; margin-top: 40px; }
.foot-inner { max-width: var(--maxw); margin: 0 auto; padding: 44px 18px 26px; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 28px; }
.foot-col h4 { color: #fff; font-size: 15px; margin: 0 0 14px; }
.foot-col a, .foot-col p { color: #cfe3d6; font-size: 14px; display: block; margin: 0 0 9px; }
.foot-col a:hover { color: #fff; }
.foot-brand { display: flex; align-items: center; gap: 8px; color: #fff; font-weight: 700; font-size: 16px; margin-bottom: 12px; }
.foot-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding: 16px 18px; text-align: center; font-size: 13px; color: #a9c6b4; }
.foot-bottom a { color: #a9c6b4; text-decoration: underline; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
  .info-list { grid-template-columns: repeat(2, 1fr); }
  .foot-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav { display: none; }
  .head-right .btn-link, .head-right .btn-primary-sm { display: none; }
  .menu-toggle { display: flex; }
  .hero-title { font-size: 27px; }
  .hero-cards { grid-template-columns: 1fr; }
  .product-detail, .info-detail { grid-template-columns: 1fr; }
  .gallery-main { max-width: 100%; }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .info-list { grid-template-columns: 1fr; }
  .brand-name { font-size: 14px; max-width: 150px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}
@media (max-width: 480px) {
  .grid { grid-template-columns: 1fr; }
  .foot-inner { grid-template-columns: 1fr; }
}