/* 板报云 · 草木绿主题 */
:root {
  --primary: #5a9a4b;
  --primary-dark: #3a6b35;
  --primary-light: #8cbf7a;
  --bg: #f5f9f0;
  --card: #ffffff;
  --border: #d0e4c8;
  --border-light: #e2f0da;
  --text: #2d4a2a;
  --text-muted: #6b9460;
  --text-light: #9cc090;
  --accent: #c4956a;
  --red: #e05050;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; min-height: 100vh; display: flex; flex-direction: column; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

/* Nav */
nav { position: sticky; top: 0; z-index: 100; background: #fff; border-bottom: 1px solid var(--border); }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; height: 56px; }
.nav-logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: #111614; font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Microsoft YaHei", Arial, sans-serif; line-height: 1; white-space: nowrap; }
.logo-icon { width: 32px; height: 32px; border-radius: 7px; display: inline-grid; place-items: center; color: #fff; background: linear-gradient(135deg, #16b98f 0%, #0d7662 100%); box-shadow: 0 6px 16px rgba(13,118,98,.18), inset 0 1px 0 rgba(255,255,255,.28); font-size: 16px; font-weight: 900; letter-spacing: 0; flex-shrink: 0; }
.logo-brand { font-size: 17px; font-weight: 800; letter-spacing: 0; color: #111614; }
.logo-domain { margin-left: 2px; font-size: 12px; font-weight: 650; letter-spacing: 0.02em; color: rgba(17,22,20,.42); }
@media (max-width: 520px) { .nav-logo { gap: 8px; } .logo-icon { width: 28px; height: 28px; border-radius: 6px; font-size: 14px; } .logo-brand { font-size: 15px; } .logo-domain { font-size: 11px; } }
.nav-links { display: flex; gap: 24px; font-size: 14px; }
.nav-links a { color: var(--text-muted); transition: all .2s; padding: 4px 12px; border-radius: 6px; }
.nav-links a:hover { color: var(--primary); }
.nav-links a.active { color: var(--primary); font-weight: 700; background: rgba(90,154,75,.08); }
.nav-actions { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.nav-actions .btn { padding: 6px 18px; background: var(--primary); color: #fff; border-radius: 20px; font-weight: 500; font-size: 13px; transition: background .2s; }
.nav-actions .btn:hover { background: var(--primary-dark); }
.nav-actions .cart-icon { position: relative; color: var(--text-muted); font-size: 18px; }
.nav-actions .cart-badge { position: absolute; top: -8px; right: -10px; background: var(--primary); color: #fff; font-size: 10px; width: 18px; height: 18px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; }
.nav-toggle { display: none; min-width: 40px; min-height: 40px; align-items: center; justify-content: center; font-size: 20px; background: none; border: none; cursor: pointer; color: var(--text); }

/* Main */
main { flex: 1; }

/* Hero */
.hero { max-width: none !important; text-align: center; padding: 70px 20px 90px; position: relative; overflow: hidden; }
.hero::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 60px; background: linear-gradient(to top, var(--bg), transparent); pointer-events: none; }
.hero h1 { font-size: 40px; font-weight: 700; line-height: 1.2; position: relative; z-index: 1; }
.hero p { margin-top: 10px; font-size: 15px; max-width: 500px; margin-left: auto; margin-right: auto; position: relative; z-index: 1; }
.hero .btn-primary { position: relative; z-index: 1; }
.hero .hero-note { margin-top: 10px; font-size: 13px; }
.hero .btn-primary { display: inline-block; margin-top: 20px; padding: 12px 32px; background: var(--primary); color: #fff; border-radius: 30px; font-weight: 600; font-size: 15px; transition: background .2s; }
.hero .btn-primary:hover { background: var(--primary-dark); }
.hero .hero-note { margin-top: 8px; font-size: 13px; color: var(--text-muted); }

/* Sections */
section { max-width: 1200px; margin: 0 auto; padding: 40px 20px; }
.section-title { font-size: 20px; font-weight: 700; color: var(--primary-dark); margin-bottom: 24px; }

/* Cards */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; transition: box-shadow .2s, border-color .2s; }
.card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.06); border-color: var(--primary); }
.card-img { width: 100%; aspect-ratio: 1; background: var(--bg); display: flex; align-items: center; justify-content: center; font-size: 32px; }
.card-body { padding: 12px; }
.card-title { font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.card-price { color: var(--primary); font-weight: 700; font-size: 15px; }
.card-btn { padding: 5px 14px; background: var(--primary); color: #fff; border-radius: 16px; font-size: 12px; border: none; cursor: pointer; transition: background .2s; font-weight: 500; }
.card-btn:hover { background: var(--primary-dark); }

/* Grid */
.grid-6 { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }

/* Footer */
footer { background: var(--bg); border-top: 1px solid var(--border); padding: 20px; text-align: center; font-size: 12px; color: var(--text-muted); margin-top: auto; }
footer a { color: var(--text-muted); }
footer a:hover { color: var(--primary); }
.footer-beian { margin-top: 6px; display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; font-size: 11px; color: var(--text-light); }
.footer-beian a { color: var(--text-light); }
.footer-beian a:hover { color: var(--primary); }
.footer-beian img { height: 14px; vertical-align: middle; margin-right: 2px; }

/* CTA */
.cta { background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--primary-light)); color: #fff; text-align: center; padding: 40px 20px; }
.cta h2 { font-size: 22px; font-weight: 700; }
.cta p { margin: 8px 0 16px; opacity: .85; font-size: 14px; }
.cta .btn-white { display: inline-block; padding: 10px 28px; background: #fff; color: var(--primary-dark); border-radius: 30px; font-weight: 600; font-size: 14px; transition: background .2s; }
.cta .btn-white:hover { background: var(--bg); }

/* Filters */
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; }
.filters .label { font-size: 12px; font-weight: 600; color: var(--text-muted); }
.filter-btn { padding: 4px 14px; border-radius: 14px; border: 1px solid var(--border); background: #fff; color: var(--text-muted); font-size: 12px; cursor: pointer; transition: all .2s; }
.filter-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.filter-btn:hover { border-color: var(--primary); }
.search-input { padding: 6px 14px; border: 1px solid var(--border); border-radius: 20px; font-size: 12px; width: 180px; margin-left: auto; outline: none; }
.search-input:focus { border-color: var(--primary); }

/* Pagination */
.pagination { display: flex; justify-content: center; align-items: center; gap: 16px; margin-top: 24px; font-size: 13px; color: var(--text-muted); }
.pagination button { padding: 8px 24px; border: 1px solid var(--border); border-radius: 20px; background: #fff; color: var(--text-muted); font-size: 13px; cursor: pointer; transition: all .2s; }
.pagination button:hover { border-color: var(--primary); }
.pagination .page-btn { padding: 8px 16px; background: var(--primary); color: #fff; border: none; border-radius: 20px; }

/* Tabs */
.tabs { display: flex; gap: 0; margin-bottom: 24px; border-bottom: 2px solid var(--border); }
.tab { padding: 8px 20px; font-size: 14px; font-weight: 500; color: var(--text-muted); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -2px; transition: all .2s; }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 12px; font-weight: 500; margin-bottom: 4px; color: var(--text); }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; outline: none; font-family: inherit; }
.form-group input:focus, .form-group select:focus { border-color: var(--primary); }
.btn { padding: 10px 24px; border-radius: 24px; font-weight: 600; font-size: 14px; border: none; cursor: pointer; transition: background .2s; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { background: #fff; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-danger { background: var(--red); color: #fff; }

/* Admin */
.admin-layout { display: flex; min-height: calc(100vh - 56px); }
.admin-sidebar { width: 160px; background: linear-gradient(180deg, var(--primary-dark), var(--primary), var(--primary-light)); color: #fff; padding: 16px 0; flex-shrink: 0; }
.admin-sidebar .admin-logo { padding: 0 16px 16px; font-weight: 700; font-size: 14px; }
.admin-sidebar a { display: flex; align-items: center; gap: 8px; padding: 10px 16px; font-size: 13px; color: rgba(255,255,255,.7); transition: all .2s; }
.admin-sidebar a:hover, .admin-sidebar a.active { background: var(--primary); color: #fff; }
.admin-content { flex: 1; padding: 24px; overflow-y: auto; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 24px; }
.stat-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 16px; text-align: center; }
.stat-card .stat-num { font-size: 28px; font-weight: 700; color: var(--text); }
.stat-card .stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* Table */
.table-wrap { background: #fff; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { background: var(--bg); text-align: left; padding: 10px 16px; font-weight: 500; color: var(--text-muted); }
td { padding: 10px 16px; border-top: 1px solid var(--border); }
.status { padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 500; }
.status-pending { background: #fff3e0; color: #e65100; }
.status-shipped { background: #e3f2fd; color: #1565c0; }
.status-completed { background: #e8f5e9; color: #2e7d32; }

/* Modal (shop) */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 200; display: flex; align-items: center; justify-content: center; }
.modal { background: #fff; border-radius: 16px; max-width: 600px; width: 90%; max-height: 80vh; overflow-y: auto; position: relative; }
.modal-close { position: absolute; top: 12px; right: 12px; width: 28px; height: 28px; border-radius: 50%; background: rgba(0,0,0,.1); border: none; font-size: 14px; cursor: pointer; }
.modal-body { padding: 24px; }

/* Auth modal */
.auth-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 300; display: flex; align-items: center; justify-content: center; }
.auth-modal { background: #fff; border-radius: 16px; width: 380px; max-width: 90vw; max-height: 90vh; overflow-y: auto; padding: 28px 24px; position: relative; box-shadow: 0 12px 40px rgba(0,0,0,.15); }
.auth-close { position: absolute; top: 12px; right: 12px; width: 28px; height: 28px; border-radius: 50%; background: rgba(0,0,0,.08); border: none; font-size: 14px; cursor: pointer; color: var(--text-muted); }
.auth-tab { flex: 1; border-radius: 18px; padding: 8px; font-size: 14px; border: none; cursor: pointer; background: transparent; color: var(--text-muted); font-weight: 500; transition: all .2s; font-family: inherit; }
.auth-tab.active { background: var(--primary); color: #fff; }

/* Toast */
.toast { position: fixed; top: 50%; left: 50%; transform: translate(-50%,-50%); background: #fff; padding: 16px 32px; border-radius: 12px; box-shadow: 0 8px 30px rgba(0,0,0,.12); font-weight: 600; z-index: 300; }

/* Responsive */
@media (max-width: 768px) {
  .nav-links, .nav-actions { display: none; }
  .nav-toggle { display: inline-flex; }
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .admin-sidebar { display: none; }
  .hero h1 { font-size: 24px; }
  section { padding: 24px 16px; }
}
@media (max-width: 480px) {
  .grid-6 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
}
@media (min-width: 2000px) {
  section, .nav-inner { max-width: 1600px; }
  .hero h1 { font-size: 48px; }
  body { font-size: 16px; }
}
@media (min-width: 3000px) {
  section, .nav-inner { max-width: 2000px; }
  .hero h1 { font-size: 56px; }
  body { font-size: 18px; }
  .card-title { font-size: 16px; }
  .card-price { font-size: 17px; }
}