:root {
  --green-900: #1b5e20;
  --green-700: #2e7d32;
  --green-500: #4caf50;
  --green-300: #a5d6a7;
  --lime: #8bc34a;
  --ink: #22301f;
  --muted: #6b7a67;
  --bg: #f7faf5;
  --card: #ffffff;
  --radius: 16px;
  --shadow: 0 8px 30px rgba(46, 125, 50, 0.10);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

.container { width: min(1120px, 92%); margin: 0 auto; }

/* ---------- Navbar ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.9); backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(46,125,50,.08);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: 2px; color: var(--green-700); }
.nav-logo img { height: 34px; }
.nav-links { display: flex; gap: 26px; font-size: 15px; }
.nav-links a:hover { color: var(--green-700); }
.nav-actions { display: flex; gap: 10px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; padding: 10px 22px; border-radius: 999px;
  border: none; cursor: pointer; font-size: 15px; transition: .2s;
}
.btn-primary { background: linear-gradient(90deg, var(--green-700), var(--lime)); color: #fff; }
.btn-primary:hover { opacity: .9; transform: translateY(-1px); }
.btn-ghost { background: transparent; border: 1px solid var(--green-700); color: var(--green-700); }
.btn-ghost:hover { background: var(--green-700); color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-danger { background: #eee; color: #c62828; }
.btn-danger:hover { background: #c62828; color: #fff; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, #eef7ea 0%, #f7fbf3 55%, #fdfef9 100%);
  padding: 90px 0 80px;
}
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.hero-tag {
  display: inline-block; padding: 6px 16px; border-radius: 999px;
  background: rgba(76,175,80,.12); color: var(--green-700); font-size: 14px; margin-bottom: 18px;
}
.hero h1 { font-size: clamp(32px, 4.5vw, 52px); line-height: 1.25; margin-bottom: 18px; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--green-700), var(--lime)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { color: var(--muted); font-size: 17px; max-width: 480px; margin-bottom: 30px; }
.hero-art {
  background: #fff; border-radius: 24px; box-shadow: var(--shadow);
  padding: 40px; text-align: center;
}

/* ---------- Sections ---------- */
.section { padding: 76px 0; }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head h2 { font-size: 30px; margin-bottom: 10px; }
.section-head p { color: var(--muted); }
.section.alt { background: #fff; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.value-card, .product-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 28px; transition: .25s;
}
.value-card:hover, .product-card:hover { transform: translateY(-4px); }
.value-card .icon {
  width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  font-size: 26px; background: linear-gradient(135deg, rgba(76,175,80,.15), rgba(139,195,74,.25)); margin-bottom: 16px;
}
.value-card h3 { margin-bottom: 8px; font-size: 18px; }
.value-card p { color: var(--muted); font-size: 14.5px; }

/* ---------- Products ---------- */
.product-filter { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 30px; }
.chip {
  padding: 8px 18px; border-radius: 999px; border: 1px solid var(--green-300);
  background: #fff; color: var(--green-700); cursor: pointer; font-size: 14px;
}
.chip.active { background: var(--green-700); color: #fff; border-color: var(--green-700); }
.product-card { overflow: hidden; padding: 0; display: flex; flex-direction: column; cursor: pointer; }
.product-thumb {
  height: 160px; display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 40px;
}
.product-thumb.has-img { height: 230px; padding: 0; background: #f2f5ee; }
.product-thumb.has-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease; }
.product-card:hover .product-thumb.has-img img { transform: scale(1.05); }

/* 产品详情弹窗 */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.detail-img { border-radius: var(--radius); overflow: hidden; background: #f2f5ee; }
.detail-img img { width: 100%; display: block; }
.detail-info .product-cat { margin-bottom: 12px; }
.detail-info h3 { font-size: 22px; margin-bottom: 12px; }
.detail-info h4 { font-size: 14px; color: var(--green-700); margin: 14px 0 6px; }
.detail-info p { color: var(--muted); font-size: 14.5px; line-height: 1.7; }
.detail-foot { display: flex; align-items: center; gap: 14px; margin: 18px 0; }
.modal-close {
  position: absolute; top: 12px; right: 16px; border: 0; background: transparent;
  font-size: 26px; color: var(--muted); cursor: pointer; line-height: 1;
}
.modal { position: relative; }
@media (max-width: 860px) { .detail-grid { grid-template-columns: 1fr; } }

.product-body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.product-cat { font-size: 12.5px; color: var(--green-700); background: rgba(76,175,80,.1); display: inline-block; padding: 3px 10px; border-radius: 999px; width: fit-content; margin-bottom: 10px; }
.product-body h3 { font-size: 17px; margin-bottom: 6px; }
.product-body p { color: var(--muted); font-size: 14px; flex: 1; }
.product-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; }
.price { font-size: 20px; font-weight: 700; color: var(--green-700); }
.price::before { content: "¥"; font-size: 14px; margin-right: 2px; }

/* ---------- Brand strip ---------- */
.brand-strip { background: linear-gradient(90deg, var(--green-700), var(--lime)); color: #fff; padding: 60px 0; }
.brand-grid { display: grid; grid-template-columns: repeat(4, 1fr); text-align: center; gap: 20px; }
.brand-grid .num { font-size: 34px; font-weight: 800; }
.brand-grid .lab { opacity: .9; font-size: 14px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.contact-info h3 { margin-bottom: 14px; }
.contact-info li { list-style: none; color: var(--muted); margin-bottom: 10px; font-size: 15px; }
.form-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 30px; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 14px; margin-bottom: 6px; color: var(--ink); }
.form-row input, .form-row textarea, .form-row select {
  width: 100%; padding: 11px 14px; border: 1px solid #dde5da; border-radius: 10px;
  font-size: 14.5px; font-family: inherit; background: #fbfdfa; outline: none; transition: .2s;
}
.form-row input:focus, .form-row textarea:focus, .form-row select:focus { border-color: var(--green-500); box-shadow: 0 0 0 3px rgba(76,175,80,.12); }
.msg { padding: 10px 14px; border-radius: 10px; font-size: 14px; margin-top: 12px; display: none; }
.msg.ok { display: block; background: #e8f5e9; color: var(--green-700); }
.msg.err { display: block; background: #fdecea; color: #c62828; }

/* ---------- Footer ---------- */
.footer { background: #1d2b1a; color: #c8d6c4; padding: 46px 0 30px; font-size: 14px; }
.footer-grid { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.footer .logo-line { font-size: 20px; font-weight: 700; color: #fff; letter-spacing: 2px; margin-bottom: 10px; }
.footer a:hover { color: #fff; }
.footer-bottom { margin-top: 30px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); text-align: center; opacity: .7; font-size: 13px; }

/* ---------- Auth / admin pages ---------- */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 40px 16px;
  background: linear-gradient(135deg, #eef7ea, #fdfef9); }
.auth-card { width: 100%; max-width: 420px; background: #fff; border-radius: 20px; box-shadow: var(--shadow); padding: 36px; }
.auth-card h1 { font-size: 24px; margin-bottom: 6px; text-align: center; }
.auth-card .sub { color: var(--muted); font-size: 14px; text-align: center; margin-bottom: 24px; }
.tabs { display: flex; background: #eef3ec; border-radius: 999px; padding: 4px; margin-bottom: 22px; }
.tabs button { flex: 1; border: none; background: transparent; padding: 9px; border-radius: 999px; cursor: pointer; font-size: 14.5px; color: var(--muted); }
.tabs button.active { background: #fff; color: var(--green-700); font-weight: 600; box-shadow: 0 2px 8px rgba(0,0,0,.06); }
.otp-row { display: flex; gap: 10px; }
.otp-row input { flex: 1; }
.otp-row button { white-space: nowrap; }

.admin-shell { display: flex; min-height: 100vh; }
.admin-side { width: 220px; background: #1d2b1a; color: #c8d6c4; padding: 24px 14px; flex-shrink: 0; }
.admin-side .brand { color: #fff; font-weight: 700; letter-spacing: 1px; margin-bottom: 26px; font-size: 16px; }
.admin-side button.menu {
  display: block; width: 100%; text-align: left; background: transparent; border: none; color: #c8d6c4;
  padding: 11px 14px; border-radius: 10px; cursor: pointer; font-size: 14.5px; margin-bottom: 4px;
}
.admin-side button.menu.active, .admin-side button.menu:hover { background: rgba(139,195,74,.18); color: #fff; }
.admin-main { flex: 1; padding: 30px 34px; background: var(--bg); overflow-x: auto; }
.admin-main h2 { font-size: 22px; margin-bottom: 20px; }
table.data { width: 100%; border-collapse: collapse; background: #fff; border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); font-size: 14px; }
table.data th, table.data td { padding: 12px 14px; text-align: left; border-bottom: 1px solid #eef2ec; vertical-align: top; }
table.data th { background: #f2f7f0; color: var(--green-900); font-weight: 600; }
.badge { padding: 3px 10px; border-radius: 999px; font-size: 12px; }
.badge.new { background: #fff3e0; color: #e65100; }
.badge.done { background: #e8f5e9; color: var(--green-700); }
.badge.pub { background: #e8f5e9; color: var(--green-700); }
.badge.hid { background: #eceff1; color: #607d8b; }
.stat-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 26px; }
.stat-card { background: #fff; border-radius: 14px; box-shadow: var(--shadow); padding: 20px 24px; }
.stat-card .n { font-size: 28px; font-weight: 800; color: var(--green-700); }
.stat-card .t { color: var(--muted); font-size: 13.5px; }

.modal-mask { position: fixed; inset: 0; background: rgba(0,0,0,.4); display: none; align-items: center; justify-content: center; z-index: 200; padding: 16px; }
.modal-mask.show { display: flex; }
.modal { background: #fff; border-radius: 18px; padding: 30px; width: 100%; max-width: 520px; max-height: 90vh; overflow-y: auto; }
.modal h3 { margin-bottom: 18px; }

.hint { font-size: 13px; color: var(--muted); margin-top: 10px; }

/* 品牌视频 */
.video-wrap { max-width: 880px; margin: 0 auto; }
.video-placeholder {
  background: linear-gradient(135deg, #eaf5e8, #f7faf5);
  border: 1.5px dashed var(--green-700);
  border-radius: var(--radius);
  padding: 70px 20px;
  text-align: center;
  color: var(--muted);
}
.video-frame { position: relative; padding-top: 56.25%; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: #000; }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* 品牌新闻 */
.news-card { display: flex; flex-direction: column; }
.news-date { color: var(--green-700); font-size: 13px; font-weight: 600; letter-spacing: 1px; margin-bottom: 6px; }
.news-card h3 { margin-bottom: 8px; }
.news-card p { flex: 1; }
.news-link { color: var(--green-700); font-weight: 600; font-size: 14px; text-decoration: none; margin-top: 10px; }
.news-link:hover { text-decoration: underline; }

@media (max-width: 860px) {
  .hero-grid, .contact-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .brand-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
  .admin-shell { flex-direction: column; }
  .admin-side { width: 100%; }
  .stat-cards { grid-template-columns: 1fr; }
}