/* 田园优选 Agriculture Hub */

:root {
  --color-bg: #f1f8f4;
  --color-surface: #ffffff;
  --color-text: #1b4332;
  --color-muted-text: #52796f;
  --color-primary: #2d6a4f;
  --color-accent: #95d5b2;
  --color-border: #b7e4c7;
  --font-sans: "DM Sans", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-serif: "Source Serif 4", "Noto Serif SC", Georgia, serif;
  --page-max: 1140px;
  --ag-radius: 16px;
  --header-h: 3.5rem;
  --mbar-h: 3.75rem;
  --shadow: 0 12px 40px rgba(45, 106, 79, 0.12);
  --shadow-sm: 0 4px 16px rgba(45, 106, 79, 0.08);
  --gradient-hero: linear-gradient(135deg, #1b4332 0%, #2d6a4f 45%, #40916c 100%);
}

[data-theme="dark"] {
  --color-bg: #081c15;
  --color-surface: #1b4332;
  --color-text: #d8f3dc;
  --color-muted-text: #95d5b2;
  --color-border: #2d6a4f;
  --color-accent-fg: #1b4332;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.38);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.28);
}

:root[data-theme="dark"],
:root[data-theme="dark"] body.theme-agriculture-hub {
  --color-bg: #081c15;
  --color-surface: #1b4332;
  --color-text: #d8f3dc;
  --color-muted-text: #95d5b2;
  --color-border: #2d6a4f;
}

[data-theme="light"] {
  --color-bg: #f1f8f4;
  --color-surface: #ffffff;
  --color-text: #1b4332;
  --color-muted-text: #52796f;
  --color-border: #b7e4c7;
  --color-accent-fg: #1b4332;
  --shadow: 0 12px 40px rgba(45, 106, 79, 0.12);
  --shadow-sm: 0 4px 16px rgba(45, 106, 79, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #081c15;
    --color-surface: #1b4332;
    --color-text: #d8f3dc;
    --color-muted-text: #95d5b2;
    --color-border: #2d6a4f;
    --color-accent-fg: #1b4332;
    --shadow: 0 12px 40px rgba(0, 0, 0, 0.38);
    --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.28);
  }
}

/* 兜底：暗色下整页背景（覆盖 preset 浅色 body 变量） */
:root[data-theme="dark"] body.theme-agriculture-hub {
  background-color: var(--color-bg);
  color: var(--color-text);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) body.theme-agriculture-hub {
    background-color: var(--color-bg);
    color: var(--color-text);
  }
}

:root[data-theme="dark"] main,
:root[data-theme="dark"] main .content,
:root[data-theme="dark"] .ag-home {
  background-color: transparent;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) main,
  :root:not([data-theme="light"]) main .content,
  :root:not([data-theme="light"]) .ag-home {
    background-color: transparent;
  }
}

/* 覆盖 style-presets 在 body 上设置的浅色背景 */
:root[data-theme="dark"] body.theme-agriculture-hub {
  --color-bg: #081c15;
  --color-surface: #1b4332;
  --color-text: #d8f3dc;
  --color-muted-text: #95d5b2;
  --color-border: #2d6a4f;
  --color-primary: #74c69d;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.38);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.28);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) body.theme-agriculture-hub {
    --color-bg: #081c15;
    --color-surface: #1b4332;
    --color-text: #d8f3dc;
    --color-muted-text: #95d5b2;
    --color-border: #2d6a4f;
    --color-primary: #74c69d;
    --shadow: 0 12px 40px rgba(0, 0, 0, 0.38);
    --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.28);
  }
}

html {
  background: var(--color-bg);
  color-scheme: light dark;
}
[data-theme="dark"] { color-scheme: dark; }
[data-theme="light"] { color-scheme: light; }

* { box-sizing: border-box; margin: 0; padding: 0; }

body.theme-agriculture-hub {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  padding-bottom: calc(var(--mbar-h) + env(safe-area-inset-bottom, 0px));
  min-height: 100vh;
}

@media (min-width: 900px) {
  body.theme-agriculture-hub { padding-bottom: 0; }
}

a { color: var(--color-primary); text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: var(--page-max);
  margin: 0 auto;
  padding-left: max(1rem, env(safe-area-inset-left));
  padding-right: max(1rem, env(safe-area-inset-right));
}

.ag-show-mobile { display: inline-flex; }
.ag-hide-mobile { display: none; }
@media (min-width: 900px) {
  .ag-show-mobile { display: none !important; }
  .ag-hide-mobile { display: inline-flex; }
}

.theme-toggle {
  width: 2.5rem;
  height: 2.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-surface);
  font-size: 1.15rem;
  cursor: pointer;
  color: inherit;
  padding: 0;
  line-height: 1;
  flex-shrink: 0;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.theme-toggle:hover {
  background: color-mix(in srgb, var(--color-primary) 10%, var(--color-surface));
  border-color: color-mix(in srgb, var(--color-primary) 35%, var(--color-border));
}
.theme-icon-light { display: none; }
[data-theme="dark"] .theme-icon-dark { display: none; }
[data-theme="dark"] .theme-icon-light { display: inline; }
[data-theme="light"] .theme-icon-dark { display: inline; }
[data-theme="light"] .theme-icon-light { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-icon-dark { display: none; }
  :root:not([data-theme="light"]) .theme-icon-light { display: inline; }
}

/* Header */
.ag-header {
  position: sticky; top: 0; z-index: 200;
  background: color-mix(in srgb, var(--color-surface) 96%, transparent);
  border-bottom: 1px solid var(--color-border);
}
.ag-header-row {
  display: flex; align-items: center; gap: 0.75rem;
  min-height: var(--header-h);
  padding-top: env(safe-area-inset-top);
}
.ag-logo { display: flex; align-items: center; gap: 0.55rem; color: inherit; font-weight: 700; min-width: 0; }
.ag-logo-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 9rem; }
@media (min-width: 900px) { .ag-logo-text { max-width: none; } }
.ag-logo-mark {
  width: 2.25rem; height: 2.25rem; border-radius: 10px;
  background: var(--gradient-hero); color: #fff;
  display: grid; place-items: center; flex-shrink: 0;
}
.ag-logo img { border-radius: 10px; object-fit: cover; }

.ag-nav { margin-left: auto; }
@media (max-width: 899px) {
  .ag-nav {
    position: fixed; top: 0; right: 0; bottom: 0; width: min(85vw, 320px);
    background: var(--color-surface); z-index: 300;
    transform: translateX(100%); transition: transform 0.25s ease;
    padding: calc(var(--header-h) + 1rem) 1.25rem 1.5rem;
    box-shadow: var(--shadow);
  }
  body.ag-nav-open .ag-nav { transform: translateX(0); }
  body.ag-nav-open { overflow: hidden; }
  .ag-nav-sheet { display: flex; flex-direction: column; gap: 0.25rem; }
  .ag-nav-link { padding: 0.75rem 0; font-size: 1.05rem; border-bottom: 1px solid var(--color-border); }
}
@media (min-width: 900px) {
  .ag-nav-sheet { display: flex; gap: 0.25rem; align-items: center; }
  .ag-nav-link { padding: 0.45rem 0.75rem; border-radius: 8px; font-size: 0.92rem; }
  .ag-nav-link:hover { background: color-mix(in srgb, var(--color-primary) 10%, transparent); }
}
.ag-nav-link { color: inherit; font-weight: 500; }
.ag-header-actions { display: flex; align-items: center; gap: 0.5rem; margin-left: auto; }
@media (min-width: 900px) { .ag-header-actions { margin-left: 0; } }
.ag-nav-toggle {
  width: 2.5rem; height: 2.5rem; border: 1px solid var(--color-border);
  border-radius: 10px; background: var(--color-surface); font-size: 1.25rem; cursor: pointer;
}
.ag-nav-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 250;
}

/* Buttons */
.ag-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.35rem;
  padding: 0.55rem 1rem; border-radius: 10px; font-weight: 600; font-size: 0.92rem;
  border: 1px solid transparent; cursor: pointer; transition: 0.15s ease;
}
.ag-btn-primary { background: var(--color-primary); color: #fff; }
.ag-btn-accent { background: var(--color-accent); color: var(--color-accent-fg, #1b4332); }
.ag-btn-outline { background: transparent; border-color: var(--color-border); color: inherit; }
.ag-btn-ghost { background: transparent; border-color: var(--color-border); }
.ag-btn-lg { padding: 0.75rem 1.25rem; font-size: 1rem; }

/* Hero */
.ag-hero {
  background: var(--gradient-hero);
  color: #fff;
  padding: 2.5rem 0 3rem;
}
.ag-hero-inner {
  display: grid; gap: 2rem; align-items: center;
}
@media (min-width: 900px) {
  .ag-hero-inner { grid-template-columns: 1.1fr 0.9fr; }
  .ag-hero { padding: 3.5rem 0 4rem; }
}
.ag-hero-badge {
  display: inline-block; padding: 0.25rem 0.75rem; border-radius: 999px;
  background: rgba(255,255,255,0.15); font-size: 0.82rem; margin-bottom: 0.75rem;
}
.ag-hero-title { font-family: var(--font-serif); font-size: clamp(1.75rem, 4vw, 2.5rem); line-height: 1.2; margin-bottom: 0.75rem; }
.ag-hero-lead { opacity: 0.92; max-width: 36rem; margin-bottom: 1.25rem; }
.ag-hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.ag-hero-visual img, .ag-hero-art {
  border-radius: var(--ag-radius);
  aspect-ratio: 4/3;
  object-fit: cover;
  box-shadow: var(--shadow);
}
.ag-hero-art {
  background: rgba(255,255,255,0.12);
  display: grid; place-items: center; font-size: 4rem;
}

/* Stats */
.ag-stats { padding: 1.5rem 0; }
.ag-stats-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem;
  background: var(--color-surface); border-radius: var(--ag-radius);
  padding: 1.25rem; border: 1px solid var(--color-border); box-shadow: var(--shadow-sm);
}
@media (min-width: 640px) { .ag-stats-grid { grid-template-columns: repeat(4, 1fr); } }
.ag-stats-grid strong { display: block; font-size: 1.35rem; color: var(--color-primary); }
.ag-stats-grid span { font-size: 0.85rem; color: var(--color-muted-text); }

/* Sections */
.ag-section { padding: 2.5rem 0; }
.ag-section-head {
  display: flex; justify-content: space-between; align-items: flex-end; gap: 1rem;
  margin-bottom: 1.25rem; flex-wrap: wrap;
}
.ag-section-head--center { justify-content: center; text-align: center; }
.ag-section-head h2, .ag-section-title {
  font-size: 1.35rem; display: flex; align-items: center; gap: 0.4rem;
}
.ag-section-lead { color: var(--color-muted-text); font-size: 0.95rem; margin-top: 0.35rem; }
.ag-link-more { font-weight: 600; white-space: nowrap; }

/* Product grid */
.ag-product-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem;
}
@media (min-width: 768px) { .ag-product-grid { grid-template-columns: repeat(4, 1fr); } }
.ag-product-card {
  background: var(--color-surface); border-radius: var(--ag-radius);
  border: 1px solid var(--color-border); overflow: hidden;
  box-shadow: var(--shadow-sm); transition: transform 0.15s ease;
}
.ag-product-card--link { color: inherit; display: block; }
.ag-product-card--link:hover { transform: translateY(-3px); }
.ag-product-media { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.ag-product-media img { width: 100%; height: 100%; object-fit: cover; }
.ag-product-fallback {
  width: 100%; height: 100%; display: grid; place-items: center;
  font-size: 2rem; color: var(--color-primary);
}
.ag-product-fallback--0 { background: color-mix(in srgb, var(--color-primary) 14%, var(--color-surface)); }
.ag-product-fallback--1 { background: color-mix(in srgb, var(--color-primary) 22%, var(--color-surface)); }
.ag-product-fallback--2 { background: color-mix(in srgb, var(--color-accent) 28%, var(--color-surface)); }
.ag-product-fallback--3 { background: color-mix(in srgb, var(--color-primary) 32%, var(--color-surface)); }
.ag-product-tag {
  position: absolute; top: 0.5rem; left: 0.5rem;
  background: var(--color-primary); color: #fff;
  font-size: 0.72rem; padding: 0.15rem 0.5rem; border-radius: 999px;
}
.ag-product-body { padding: 0.85rem; }
.ag-product-body h3 { font-size: 0.95rem; margin-bottom: 0.25rem; }
.ag-product-body p { font-size: 0.82rem; color: var(--color-muted-text); }

/* Trace box */
.ag-trace-box {
  display: grid; gap: 1.25rem; align-items: center;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--ag-radius); padding: 1.5rem; box-shadow: var(--shadow-sm);
}
@media (min-width: 768px) { .ag-trace-box { grid-template-columns: 1fr auto; } }
.ag-trace-form {
  display: flex; gap: 0.5rem; flex-wrap: wrap;
}
.ag-trace-form input {
  flex: 1 1 180px; min-width: 0; padding: 0.65rem 1rem;
  border: 1px solid var(--color-border); border-radius: 10px;
  background: var(--color-bg); font-size: 1rem;
}

/* Services */
.ag-service-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem;
}
@media (min-width: 768px) { .ag-service-grid { grid-template-columns: repeat(4, 1fr); } }
.ag-service-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--ag-radius); padding: 1.25rem; text-align: center;
}
.ag-service-icon { font-size: 1.75rem; color: var(--color-primary); display: block; margin-bottom: 0.5rem; }
.ag-service-card h3 { font-size: 0.95rem; margin-bottom: 0.35rem; }
.ag-service-card p { font-size: 0.82rem; color: var(--color-muted-text); }

/* Post grid & cards */
.ag-news { padding-top: 0; }
.ag-post-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .ag-post-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .ag-post-grid { grid-template-columns: repeat(3, 1fr); }
}
.ag-post-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--ag-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.ag-post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
  border-color: color-mix(in srgb, var(--color-primary) 30%, var(--color-border));
}
.ag-post-card.is-pinned {
  border-color: color-mix(in srgb, var(--color-accent) 55%, var(--color-border));
}
.ag-pin-badge {
  position: absolute;
  top: 0.65rem;
  left: 0.65rem;
  z-index: 2;
  background: var(--color-accent);
  color: var(--color-accent-fg, #1b4332);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}
.ag-post-card-cover {
  display: block;
  overflow: hidden;
}
.ag-post-card-cover img {
  width: 100%;
  height: 10.5rem;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}
.ag-post-card:hover .ag-post-card-cover img { transform: scale(1.04); }
.ag-post-card-body {
  padding: 1rem 1.1rem 1.15rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.45rem;
}
.ag-post-card-body h3 {
  font-size: 1rem;
  line-height: 1.45;
  margin: 0;
}
.ag-post-card-body h3 a {
  color: inherit;
  text-decoration: none;
}
.ag-post-card-body h3 a:hover { color: var(--color-primary); }
.ag-post-card-excerpt {
  font-size: 0.88rem;
  color: var(--color-muted-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}
.ag-post-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  font-size: 0.8rem;
  color: var(--color-muted-text);
  margin-top: auto;
}
.ag-post-card-meta i { margin-right: 0.15rem; }
.ag-post-card-more {
  margin-top: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
}

.ag-empty { text-align: center; padding: 2rem; color: var(--color-muted-text); }
.ag-empty--full { grid-column: 1 / -1; }
.ag-empty i { font-size: 2rem; display: block; margin-bottom: 0.5rem; }

/* Footer */
.ag-footer {
  margin-top: 2rem; padding: 2rem 0 0;
  background: color-mix(in srgb, var(--color-primary) 8%, var(--color-surface));
  border-top: 1px solid var(--color-border);
}
.ag-footer-grid {
  display: grid; gap: 1.5rem; padding-bottom: 1.5rem;
}
@media (min-width: 768px) { .ag-footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.ag-footer-links, .ag-footer-contact { display: flex; flex-direction: column; gap: 0.35rem; }
.ag-footer-links h4, .ag-footer-contact h4 { font-size: 0.9rem; margin-bottom: 0.25rem; }
.ag-footer-bottom {
  padding: 1rem 0; border-top: 1px solid var(--color-border);
  font-size: 0.82rem; color: var(--color-muted-text); text-align: center;
}

/* Mobile bar */
.ag-mobile-bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 180;
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: var(--color-surface); border-top: 1px solid var(--color-border);
  padding-bottom: env(safe-area-inset-bottom);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.12);
}
[data-theme="dark"] .ag-mobile-bar {
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.35);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .ag-mobile-bar {
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.35);
  }
}
@media (min-width: 900px) { .ag-mobile-bar { display: none; } }
.ag-mobile-bar a {
  display: flex; flex-direction: column; align-items: center; gap: 0.15rem;
  padding: 0.5rem; font-size: 0.68rem; color: var(--color-muted-text);
}
.ag-mobile-bar i { font-size: 1.25rem; }
.ag-mobile-bar-accent { color: var(--color-primary) !important; font-weight: 600; }

.prose { line-height: 1.75; }
.prose p { margin-bottom: 1rem; }
.prose ul { margin: 0 0 1rem 1.25rem; }