/* ── B2B Trade Platform - Unified Design System ── */
/* Modernized: wider containers, generous spacing, trust-first design */
:root {
  /* Brand Colors */
  --mic-blue: #2b59af;
  --mic-blue-dark: #1e4089;
  --mic-blue-light: #3d6cc0;
  --mic-orange: #f28012;
  --mic-orange-dark: #d96e0a;
  --mic-green: #00a651;
  --mic-red: #e53935;
  --mic-dark: #1a1a2e;
  --mic-text: #2d3748;
  --mic-muted: #64748b;
  --mic-light: #f8fafc;
  --mic-border: #e2e8f0;
  --mic-white: #ffffff;
  --mic-bg-section: #f7f9fc;

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
  --font-display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;

  /* Shadows - More refined */
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-hover: 0 8px 30px rgba(0,0,0,0.10);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);

  /* Layout */
  --container: 1380px;
  --radius: 8px;
  --radius-sm: 4px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 999px;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 0.15s var(--ease-out);
  --transition-base: 0.25s var(--ease-out);
  --transition-slow: 0.4s var(--ease-out);
}

/* ── Global Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; scroll-behavior: smooth; overflow-x: hidden; }
body { font-family: var(--font-sans); color: var(--mic-text); line-height: 1.65; background: var(--mic-white); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; overflow-x: hidden; }
a { color: var(--mic-blue); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--mic-orange); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5 { color: var(--mic-dark); line-height: 1.25; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: 2.4rem; }
h2 { font-size: 1.6rem; }
h3 { font-size: 1.15rem; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ── Top Bar ── */
.top-bar { background: var(--mic-white); color: var(--mic-muted); font-size: 12px; padding: 6px 0; border-bottom: 1px solid var(--mic-border); }
.top-bar .container { display: flex; justify-content: space-between; align-items: center; }
.top-bar a { color: var(--mic-muted); font-weight: 500; }
.top-bar a:hover { color: var(--mic-blue); }
.top-bar-left { font-weight: 500; color: var(--mic-muted); }
.top-bar-right { display: flex; gap: 4px; }
.top-bar-right a { padding: 0 8px; border-right: 1px solid var(--mic-border); }
.top-bar-right a:last-child { border-right: none; }

/* ── Header ── */
.site-header { background: var(--mic-white); border-bottom: none; padding: 14px 0; position: relative; z-index: 100; }
.header-inner { display: flex; align-items: center; gap: 24px; }
.site-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.site-logo img { height: 38px; width: auto; }
.logo-text { font-size: 20px; font-weight: 800; color: var(--mic-blue); white-space: nowrap; letter-spacing: -0.02em; }
.header-search { flex: 1; max-width: 520px; display: flex; }
.header-search input { flex: 1; height: 40px; border: 2px solid var(--mic-border); border-right: none; padding: 0 14px; font-size: 13.5px; border-radius: var(--radius) 0 0 var(--radius); outline: none; transition: border-color var(--transition-fast); background: var(--mic-light); }
.header-search input:focus { border-color: var(--mic-blue); background: #fff; }
.header-search button { height: 40px; padding: 0 22px; background: var(--mic-blue); border: 2px solid var(--mic-blue); color: #fff; font-weight: 700; font-size: 13.5px; cursor: pointer; border-radius: 0 var(--radius) var(--radius) 0; white-space: nowrap; transition: background var(--transition-fast); }
.header-search button:hover { background: var(--mic-blue-dark); border-color: var(--mic-blue-dark); }
.header-cta { display: flex; gap: 10px; align-items: center; flex-shrink: 0; }

/* ── Category Nav ── */
.cat-nav { background: var(--mic-blue); position: relative; z-index: 90; }
.cat-nav-inner { display: flex; align-items: stretch; }
.cat-nav a { color: rgba(255,255,255,0.9); font-size: 13.5px; padding: 11px 18px; display: block; font-weight: 600; white-space: nowrap; transition: color var(--transition-fast), background var(--transition-fast); position: relative; }
.cat-nav a::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%) scaleX(0); width: 60%; height: 2px; background: #fff; border-radius: 2px; transition: transform var(--transition-fast); }
.cat-nav a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.cat-nav a:hover::after { transform: translateX(-50%) scaleX(1); }
.cat-nav a.active { color: #fff; background: rgba(255,255,255,0.12); font-weight: 700; }
.cat-nav a.active::after { transform: translateX(-50%) scaleX(1); }

/* ── Trust Bar (global) ── */
.trust-bar { background: var(--mic-white); padding: 14px 0; border-bottom: 1px solid var(--mic-border); }
.trust-bar-inner { display: flex; align-items: center; justify-content: center; gap: 32px; font-size: 13px; color: var(--mic-muted); }
.trust-bar-item { display: flex; align-items: center; gap: 6px; text-decoration: none; color: var(--mic-muted); transition: color 0.15s; }
.trust-bar-item:hover { color: var(--mic-blue); }
.trust-bar-item svg { color: #16a34a; flex-shrink: 0; }

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 6px 18px; font-size: 14px; font-weight: 700; border: 2px solid transparent; cursor: pointer; border-radius: var(--radius); transition: all var(--transition-fast); text-align: center; text-decoration: none; gap: 6px; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--mic-orange), var(--mic-orange-dark)); color: #fff; border-color: transparent; box-shadow: 0 2px 8px rgba(242,128,18,0.2); }
.btn-primary:hover { box-shadow: 0 6px 20px rgba(242,128,18,0.35); color: #fff; }
.btn-blue { background: linear-gradient(135deg, var(--mic-blue), var(--mic-blue-dark)); color: #fff; border-color: transparent; box-shadow: 0 2px 8px rgba(43,89,175,0.2); }
.btn-blue:hover { box-shadow: 0 6px 20px rgba(43,89,175,0.35); color: #fff; }
.btn-outline { background: transparent; color: var(--mic-blue); border-color: var(--mic-blue); }
.btn-outline:hover { background: var(--mic-blue); color: #fff; }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.4); }
.btn-outline-light:hover { background: rgba(255,255,255,.15); color: #fff; border-color: rgba(255,255,255,.7); }
.btn-lg { padding: 14px 36px; font-size: 15px; border-radius: var(--radius-lg); }
.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-block { display: flex; width: 100%; }

/* ── Badges ── */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 3px 8px; font-size: 11px; font-weight: 700; border-radius: var(--radius-sm); letter-spacing: 0.02em; background: #eef2ff; color: #4338ca; }
.badge-verified { background: #dcfce7; color: #15803d; }
.badge-verified::before { content: ''; display: inline-block; width: 10px; height: 10px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2315803d' stroke-width='3'%3E%3Cpath d='M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z'/%3E%3Cpath d='M9 12l2 2 4-4'/%3E%3C/svg%3E") center/contain no-repeat; }
.badge-gold { background: linear-gradient(135deg, #fef3c7, #fde68a); color: #92400e; border: 1px solid #f59e0b; }
.badge-gold::before { content: '\2605'; font-size: 10px; }
.badge-premium { background: linear-gradient(135deg, #312e81, #4338ca); color: #fff; }
.badge-premium::before { content: ''; display: inline-block; width: 10px; height: 10px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3'%3E%3Cpath d='M22 11.08V12a10 10 0 1 1-5.93-9.14'/%3E%3Cpath d='M22 4L12 14.01l-3-3'/%3E%3C/svg%3E") center/contain no-repeat; }
.badge-blue { background: #dbeafe; color: #1d4ed8; }
.badge-hot { background: var(--mic-red); color: #fff; }

/* ── Hero Banner ── */
.hero-banner { position: relative; background: linear-gradient(135deg, #0f2548 0%, var(--mic-blue) 40%, #1a5fa8 70%, #2d7dd2 100%); overflow: hidden; padding: 80px 0 72px; }
.hero-banner::before { content: ''; position: absolute; top: -50%; right: -20%; width: 80%; height: 200%; background: radial-gradient(ellipse, rgba(242,128,18,0.08) 0%, transparent 60%); pointer-events: none; }
.hero-banner::after { content: ''; position: absolute; top: 0; right: 0; bottom: 0; width: 45%; background: url('/static/images/hero-banner.jpg') center/cover no-repeat; opacity: 0.15; mask-image: linear-gradient(to left, rgba(0,0,0,0.3), transparent); -webkit-mask-image: linear-gradient(to left, rgba(0,0,0,0.3), transparent); }
.hero-content { position: relative; z-index: 2; color: #fff; max-width: 640px; }
.hero-content h1 { color: #fff; font-size: 36px; margin-bottom: 16px; line-height: 1.2; font-weight: 800; letter-spacing: -0.02em; }
.hero-content p { font-size: 16px; opacity: 0.9; margin-bottom: 28px; line-height: 1.7; }
.hero-actions { display: flex; gap: 14px; align-items: center; }
.hero-stats { display: flex; gap: 40px; margin-top: 40px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.15); }
.hero-stat { text-align: center; }
.hero-stat-num { display: block; font-size: 32px; font-weight: 800; color: var(--mic-orange); letter-spacing: -0.02em; }
.hero-stat-label { font-size: 13px; opacity: 0.75; margin-top: 4px; }

/* Hero Search */
.hero-search { margin-bottom: 24px; }
.hero-search-form { display: flex; max-width: 580px; height: 52px; border-radius: var(--radius-full); overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,0.15); }
.hero-search-form input { flex: 1; border: none; padding: 0 20px; font-size: 15px; outline: none; }
.hero-search-form button { width: 120px; border: none; background: linear-gradient(135deg, var(--mic-orange), var(--mic-orange-dark)); color: #fff; font-size: 15px; font-weight: 700; cursor: pointer; transition: opacity var(--transition-fast); }
.hero-search-form button:hover { opacity: 0.9; }
.hero-hot-tags { display: flex; align-items: center; gap: 10px; margin-top: 12px; font-size: 13px; }
.hero-hot-tags span { color: rgba(255,255,255,0.6); }
.hero-hot-tags a { color: rgba(255,255,255,0.85); padding: 3px 10px; background: rgba(255,255,255,0.1); border-radius: var(--radius-full); transition: background var(--transition-fast); }
.hero-hot-tags a:hover { background: rgba(255,255,255,0.2); color: #fff; }

/* ── Section ── */
.section { padding: 48px 0; }
.section-alt { background: var(--mic-bg-section); }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; }
.section-header h2 { font-size: 22px; color: var(--mic-dark); display: flex; align-items: center; gap: 10px; }
.section-header h2::before { content: ''; display: inline-block; width: 4px; height: 22px; background: linear-gradient(180deg, var(--mic-orange), var(--mic-blue)); border-radius: var(--radius-full); }
.link-more { font-size: 13px; color: var(--mic-muted); display: flex; align-items: center; gap: 4px; transition: color var(--transition-fast); }
.link-more:hover { color: var(--mic-orange); }
.link-more::after { content: '\2192'; font-size: 14px; transition: transform var(--transition-fast); }
.link-more:hover::after { transform: translateX(3px); }

/* ── Product Cards ── */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-card { border: 1px solid var(--mic-border); background: var(--mic-white); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition-base); }
.product-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: transparent; }
.product-card-img { position: relative; padding-top: 100%; overflow: hidden; background: var(--mic-light); }
.product-card-img img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
.product-card:hover .product-card-img img { transform: scale(1.05); }
.product-card-body { padding: 14px 16px 16px; }
.product-card-body h4 { font-size: 13.5px; font-weight: 500; margin-bottom: 8px; line-height: 1.45; height: 2.9em; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.product-card-body h4 a { color: var(--mic-text); }
.product-card-body h4 a:hover { color: var(--mic-blue); text-decoration: none; }
.product-card-price { font-size: 17px; font-weight: 800; color: var(--mic-orange); margin-bottom: 6px; }
.product-card-supplier { font-size: 12px; color: var(--mic-muted); }
.product-card-moq { font-size: 11px; color: var(--mic-muted); margin-top: 4px; padding-top: 8px; border-top: 1px solid var(--mic-border); }
.product-card .card-img { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--mic-light); }
.product-card .card-img img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
.product-card:hover .card-img img { transform: scale(1.05); }
.product-card .card-body { padding: 14px 16px 16px; }
.product-card .card-body h4 { font-size: 13.5px; font-weight: 500; margin-bottom: 8px; line-height: 1.45; height: 2.9em; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.product-card .card-body h4 a { color: var(--mic-text); }
.product-card .card-body h4 a:hover { color: var(--mic-blue); }
.product-price { font-size: 17px; font-weight: 800; color: var(--mic-orange); margin-bottom: 4px; display: block; }
.card-img--placeholder {
  display: flex; align-items: center; justify-content: center;
  background: var(--mic-light); min-height: 160px;
}

/* ── Supplier Cards ── */
.supplier-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.supplier-card { border: 1px solid var(--mic-border); background: var(--mic-white); padding: 20px; border-radius: var(--radius-lg); transition: all var(--transition-base); position: relative; }
.supplier-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); border-color: transparent; }
.supplier-card-header { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 12px; }
.supplier-card-header h3 { font-size: 15px; margin-bottom: 4px; }
.supplier-card-header h3 a { color: var(--mic-dark); }
.supplier-card-header h3 a:hover { color: var(--mic-blue); }
.supplier-logo-placeholder {
  width: 52px; height: 52px; flex-shrink: 0;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--mic-blue), #6366f1);
  color: #fff; font-size: 20px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.supplier-badges { display: flex; gap: 5px; flex-wrap: wrap; margin-top: 4px; }
.supplier-stats {
  display: flex; gap: 12px; padding: 12px 0;
  border-top: 1px solid var(--mic-border);
  border-bottom: 1px solid var(--mic-border);
  margin-bottom: 14px;
}
.supplier-stats .stat { flex: 1; text-align: center; }
.supplier-stats .stat-value { font-size: 15px; }
.supplier-stats .stat-label { font-size: 11px; }
.supplier-card-top { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 12px; }
.supplier-logo { width: 60px; height: 60px; border: 1px solid var(--mic-border); border-radius: var(--radius); object-fit: contain; flex-shrink: 0; background: #fff; padding: 4px; }
.supplier-info h3 { font-size: 15px; margin-bottom: 6px; }
.supplier-info h3 a { color: var(--mic-dark); }
.supplier-info h3 a:hover { color: var(--mic-blue); text-decoration: none; }
.supplier-tags { display: flex; gap: 5px; flex-wrap: wrap; margin-top: 4px; }
.supplier-intro { font-size: 13px; color: var(--mic-muted); line-height: 1.6; margin-bottom: 14px; height: 3.2em; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.supplier-meta { display: flex; justify-content: space-between; align-items: center; padding-top: 14px; border-top: 1px solid var(--mic-border); font-size: 12px; }
.supplier-meta-item { color: var(--mic-muted); }
.supplier-meta-item strong { color: var(--mic-dark); font-weight: 700; }

/* ── Article/Guide Cards ── */
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.article-card { border: 1px solid var(--mic-border); background: var(--mic-white); border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition-base); }
.article-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); border-color: transparent; }
.article-card-img { height: 180px; overflow: hidden; }
.article-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
.article-card:hover .article-card-img img { transform: scale(1.05); }
.article-card-body { padding: 16px 18px 18px; }
.article-card-body .badge { margin-bottom: 8px; }
.article-card-body h3 { font-size: 15px; margin-bottom: 8px; line-height: 1.4; }
.article-card-body h3 a { color: var(--mic-dark); }
.article-card-body h3 a:hover { color: var(--mic-blue); text-decoration: none; }
.article-card-body p { font-size: 13px; color: var(--mic-muted); line-height: 1.6; height: 3.2em; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }

/* ── Category Showcase ── */
.cat-showcase { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; margin-bottom: 24px; }
.cat-showcase-item { text-align: center; padding: 20px 10px; border: 1px solid var(--mic-border); border-radius: var(--radius-lg); background: var(--mic-white); transition: all var(--transition-base); cursor: pointer; }
.cat-showcase-item:hover { border-color: var(--mic-blue); box-shadow: var(--shadow-card); transform: translateY(-2px); }
.cat-showcase-item img { width: 52px; height: 52px; margin: 0 auto 10px; object-fit: contain; }
.cat-showcase-item span { display: block; font-size: 13px; color: var(--mic-text); font-weight: 500; }

/* ── CTA Bar ── */
.cta-bar { background: linear-gradient(135deg, #0f2548 0%, var(--mic-blue) 50%, #1a5fa8 100%); color: #fff; padding: 56px 0; text-align: center; position: relative; overflow: hidden; }
.cta-bar::before { content: ''; position: absolute; top: -50%; left: -20%; width: 60%; height: 200%; background: radial-gradient(ellipse, rgba(242,128,18,0.1), transparent 60%); pointer-events: none; }
.cta-bar h2 { color: #fff; font-size: 26px; margin-bottom: 10px; position: relative; z-index: 1; }
.cta-bar p { font-size: 15px; opacity: 0.85; margin-bottom: 24px; position: relative; z-index: 1; }
.cta-bar .btn { position: relative; z-index: 1; }

/* ── Inquiry Form ── */
.inquiry-layout { display: grid; grid-template-columns: 1fr 360px; gap: 36px; align-items: start; }
.inquiry-main h1 { margin-bottom: 10px; }
.inquiry-sub { color: var(--mic-muted); margin-bottom: 24px; }
.inquiry-form .form-group { margin-bottom: 16px; }
.inquiry-form label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 13px; color: var(--mic-dark); }
.inquiry-form input, .inquiry-form textarea, .inquiry-form select { width: 100%; padding: 10px 14px; border: 1px solid var(--mic-border); border-radius: var(--radius); font-size: 16px; font-family: inherit; transition: border-color var(--transition-fast), box-shadow var(--transition-fast); }
.inquiry-form input:focus, .inquiry-form textarea:focus, .inquiry-form select:focus { outline: none; border-color: var(--mic-blue); box-shadow: 0 0 0 3px rgba(43,89,175,0.08); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-note { font-size: 11px; color: var(--mic-muted); margin-top: 12px; text-align: center; }
.inquiry-sidebar { position: sticky; top: 80px; }
.trust-box { padding: 20px; border: 1px solid var(--mic-border); border-radius: var(--radius-lg); margin-bottom: 16px; background: var(--mic-white); }
.trust-box h4 { margin-bottom: 12px; font-size: 15px; color: var(--mic-dark); border-bottom: 1px solid var(--mic-border); padding-bottom: 10px; }
.trust-list li { padding: 6px 0 6px 24px; font-size: 13px; position: relative; color: var(--mic-text); }
.trust-list li::before { content: '\2713'; position: absolute; left: 0; color: var(--mic-green); font-weight: 700; }
.steps-list { counter-reset: steps; }
.steps-list li { counter-increment: steps; padding: 6px 0 6px 28px; font-size: 13px; position: relative; }
.steps-list li::before { content: counter(steps); position: absolute; left: 0; width: 20px; height: 20px; background: linear-gradient(135deg, var(--mic-blue), var(--mic-blue-light)); color: #fff; border-radius: 50%; font-size: 11px; text-align: center; line-height: 20px; font-weight: 700; }

/* ── Supplier Detail ── */
.supplier-hero { background: var(--mic-bg-section); padding: 32px 0; border-bottom: 1px solid var(--mic-border); }
.supplier-profile-header { display: flex; gap: 20px; align-items: flex-start; margin-bottom: 20px; }
.supplier-logo-lg { width: 88px; height: 88px; border: 1px solid var(--mic-border); border-radius: var(--radius-lg); object-fit: contain; background: #fff; padding: 8px; }
.supplier-tagline { color: var(--mic-muted); margin-top: 6px; font-size: 14px; }
.supplier-profile-stats { display: flex; gap: 28px; margin-bottom: 20px; }
.stat { text-align: center; padding: 12px 20px; background: var(--mic-white); border-radius: var(--radius); border: 1px solid var(--mic-border); }
.stat-value { display: block; font-weight: 800; font-size: 18px; color: var(--mic-dark); }
.stat-label { font-size: 12px; color: var(--mic-muted); margin-top: 2px; }

/* ── Article Detail ── */
.article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 36px; }
.article-main { min-width: 0; }
.article-header { margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--mic-border); }
.article-header h1 { margin: 10px 0; font-size: 28px; }
.article-meta { display: flex; gap: 14px; font-size: 13px; color: var(--mic-muted); }
.article-detail { padding: 28px 0; }

.prose { font-size: 15px; line-height: 1.85; color: var(--mic-text); }
.prose h2 { margin: 28px 0 14px; font-size: 20px; }
.prose h3 { margin: 22px 0 10px; font-size: 17px; }
.prose p { margin-bottom: 16px; }
.prose ul, .prose ol { margin-bottom: 16px; padding-left: 22px; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { margin-bottom: 8px; }
.prose table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 13.5px; border-radius: var(--radius); overflow: hidden; }
.prose th, .prose td { border: 1px solid var(--mic-border); padding: 10px 14px; text-align: left; }
.prose th { background: var(--mic-light); font-weight: 700; }

/* ── FAQ ── */
.article-faq { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--mic-border); }
.faq-item { border: 1px solid var(--mic-border); margin-bottom: 8px; border-radius: var(--radius); transition: border-color var(--transition-fast); }
.faq-item:hover { border-color: var(--mic-blue); }
.faq-item summary { padding: 12px 16px; font-weight: 600; font-size: 14px; cursor: pointer; }
.faq-item p { padding: 0 16px 12px; color: var(--mic-muted); font-size: 13.5px; line-height: 1.7; }

/* ── Sidebar ── */
.article-sidebar { position: sticky; top: 80px; align-self: start; }
.sidebar-cta { padding: 20px; background: linear-gradient(180deg, #fff, var(--mic-bg-section)); border: 1px solid var(--mic-border); border-radius: var(--radius-lg); margin-bottom: 16px; }
.sidebar-cta h4 { margin-bottom: 8px; font-size: 15px; }
.sidebar-cta p { font-size: 13px; color: var(--mic-muted); margin-bottom: 12px; line-height: 1.6; }
.sidebar-section { padding: 20px; border: 1px solid var(--mic-border); border-radius: var(--radius-lg); margin-bottom: 16px; }
.sidebar-section h4 { margin-bottom: 12px; font-size: 15px; }
.sidebar-list li { margin-bottom: 10px; }
.sidebar-list a { font-size: 13px; color: var(--mic-text); }
.sidebar-list a:hover { color: var(--mic-blue); }

/* ── Article CTA ── */
.article-cta { margin-top: 28px; padding: 28px; background: linear-gradient(135deg, var(--mic-bg-section), #fff); border: 1px solid var(--mic-border); text-align: center; border-radius: var(--radius-lg); }
.article-cta h3 { margin-bottom: 8px; font-size: 18px; }
.article-cta p { color: var(--mic-muted); margin-bottom: 14px; font-size: 14px; }

/* ── Product Detail ── */
.product-detail-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; margin-bottom: 28px; }
.product-main-img { width: 100%; border: 1px solid var(--mic-border); border-radius: var(--radius-lg); }
.product-price-block { font-size: 20px; margin: 14px 0; }
.product-price-value { font-weight: 800; color: var(--mic-orange); }
.product-meta-row { color: var(--mic-muted); margin-bottom: 8px; font-size: 13.5px; }
.product-supplier-badge { margin: 16px 0; padding: 14px; background: var(--mic-bg-section); border: 1px solid var(--mic-border); border-radius: var(--radius); display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.product-description, .product-specs { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--mic-border); }
.product-description h2, .product-specs h2 { font-size: 18px; margin-bottom: 12px; color: var(--mic-dark); }
.prose { font-size: 14px; line-height: 1.8; color: var(--mic-text); }
.prose p + p { margin-top: 10px; }

/* ── CTA Section (产品/内容页底部询盘) ── */
.cta-section {
  background: linear-gradient(135deg, #f8fafc, #eef4ff);
  border-top: 1px solid var(--mic-border);
  padding: 48px 0;
  margin-top: 40px;
  text-align: center;
}
.cta-section h2 {
  font-size: 22px;
  color: var(--mic-dark);
  margin-bottom: 8px;
}
.cta-section p {
  font-size: 14px;
  color: var(--mic-muted);
  margin-bottom: 20px;
}
.cta-section .btn { font-size: 15px; padding: 14px 36px; }

/* ── Search ── */
.search-results { margin-top: 20px; }
.search-item { padding: 16px 0; border-bottom: 1px solid var(--mic-border); }
.search-item h3 { margin-bottom: 6px; font-size: 15px; }
.search-item p { color: var(--mic-muted); font-size: 13px; margin-bottom: 4px; }
.empty-state { text-align: center; padding: 60px 20px; }
.empty-state p { color: var(--mic-muted); margin-bottom: 16px; font-size: 15px; }

/* ── Page Header ── */
.page-header { background: linear-gradient(135deg, var(--mic-bg-section), #fff); border-bottom: 1px solid var(--mic-border); padding: 28px 0; }
.page-header h1 { margin-bottom: 6px; font-size: 24px; }
.page-header p { color: var(--mic-muted); font-size: 14px; }

/* ── Card Grid (通用内容卡片网格) ── */
.card-grid {
  display: grid;
  gap: 24px;
}
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }

.card-grid .card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--mic-border);
  background: var(--mic-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}
.card-grid .card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
  border-color: transparent;
}
.card-grid .card-img { display: block; overflow: hidden; position: relative; aspect-ratio: 4/3; background: var(--mic-light); }
.card-grid .card-img img {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}
.card-grid .card:hover .card-img img,
.card-grid .product-card:hover .card-img img { transform: scale(1.05); }
.card-grid .card-body {
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card-grid .card-body h3 {
  font-size: 15px;
  margin: 8px 0;
  line-height: 1.4;
  color: var(--mic-dark);
}
.card-grid .card-body h3 a { color: inherit; }
.card-grid .card-body h3 a:hover { color: var(--mic-orange); }
.card-grid .card-body p {
  font-size: 13px;
  color: var(--mic-muted);
  line-height: 1.6;
  margin: 0 0 12px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-grid .card-meta {
  font-size: 12px;
  color: #aaa;
  margin-top: auto;
}
.badge-muted { background: #f3f4f6; color: #6b7280; }
.badge-green { background: #dcfce7; color: #15803d; }

/* ── Footer (Professional 4-column) ── */
.site-footer { background: linear-gradient(180deg, #1a1a2e, #0f0f1a); color: #a0aec0; padding: 56px 0 0; margin-top: 0; }
.cta-bar + .site-footer { margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 36px; margin-bottom: 36px; }
.footer-brand { display: flex; flex-direction: column; gap: 12px; }
.footer-brand .logo-text { color: #fff; font-size: 20px; font-weight: 800; }
.footer-brand p { font-size: 13px; color: #8892a4; line-height: 1.7; }
.site-footer h4 { color: #fff; margin-bottom: 16px; font-size: 14px; font-weight: 700; letter-spacing: 0.02em; text-transform: uppercase; }
.site-footer ul li { margin-bottom: 8px; }
.site-footer a { color: #8892a4; font-size: 13px; transition: color var(--transition-fast); }
.site-footer a:hover { color: #fff; }
.footer-trust { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; margin-top: 8px; }
.footer-trust-inner { display: flex; align-items: center; justify-content: center; gap: 28px; flex-wrap: wrap; }
.footer-trust-item { display: flex; align-items: center; gap: 6px; font-size: 12px; color: #64748b; }
.footer-trust-item svg, .footer-trust-item img { width: 20px; height: 20px; opacity: 0.6; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding: 18px 0; font-size: 12px; color: #64748b; text-align: center; }

/* ── Mobile Nav ── */
.mobile-toggle { display: none; background: none; border: none; width: 32px; height: 32px; cursor: pointer; flex-direction: column; justify-content: space-around; padding: 5px 0; }
.mobile-toggle span { display: block; height: 2px; background: var(--mic-dark); border-radius: 2px; transition: transform var(--transition-fast); }

/* ── Breadcrumb ── */
.breadcrumb { padding: 12px 0; font-size: 13px; color: var(--mic-muted); }
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.breadcrumb li::after { content: '/'; margin-left: 6px; color: var(--mic-border); }
.breadcrumb li:last-child::after { display: none; }
.breadcrumb a { color: var(--mic-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--mic-blue); }
.breadcrumb li:last-child span { color: var(--mic-text); font-weight: 500; }

/* ── Pagination ── */
.pagination { display: flex; gap: 6px; justify-content: center; margin: 32px 0; }
.pagination a, .pagination span { display: inline-flex; align-items: center; justify-content: center; min-width: 36px; height: 36px; padding: 0 12px; border: 1px solid var(--mic-border); font-size: 13px; border-radius: var(--radius); transition: all var(--transition-fast); }
.pagination a:hover { border-color: var(--mic-blue); color: var(--mic-blue); background: rgba(43,89,175,0.04); }
.pagination .current { background: linear-gradient(135deg, var(--mic-blue), var(--mic-blue-dark)); color: #fff; border-color: transparent; }

/* ── Animations ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.03); }
}
.animate-in { animation: fadeInUp 0.5s var(--ease-out) both; }
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }

/* ── Skeleton Loading ── */
.skeleton { background: linear-gradient(90deg, var(--mic-light) 25%, #e2e8f0 50%, var(--mic-light) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-sm); }
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Mobile Inquiry Float Bar ── */
.mobile-inquiry-bar { display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 1000; background: #fff; box-shadow: 0 -4px 20px rgba(0,0,0,0.1); padding: 10px 16px; border-top: 1px solid var(--mic-border); }
.mobile-inquiry-bar .container { display: flex; align-items: center; gap: 10px; padding: 0; }
.mobile-inquiry-bar .btn { flex: 1; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .supplier-grid { grid-template-columns: repeat(2, 1fr); }
  .article-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .inquiry-layout { grid-template-columns: 1fr; }
  .product-detail-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .cat-showcase { grid-template-columns: repeat(4, 1fr); }
  .trust-bar-inner { gap: 20px; font-size: 12px; }
}

@media (max-width: 768px) {
  html { font-size: 14px; }
  .top-bar { display: none; }
  .site-header { padding: 10px 0; }
  .header-inner { gap: 12px; flex-wrap: wrap; }
  .logo-text { font-size: 17px; }
  .header-search { order: 3; max-width: 100%; flex: 1 1 100%; margin-top: 4px; }
  .header-search input { height: 38px; font-size: 14px; }
  .header-search button { height: 38px; padding: 0 14px; font-size: 13px; }
  .hero-banner { padding: 48px 0 40px; }
  .hero-content h1 { font-size: 24px; line-height: 1.3; }
  .hero-content p { font-size: 14px; }
  .hero-stats { gap: 16px; flex-wrap: wrap; }
  .hero-stat-num { font-size: 22px; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: 10px; }
  .hero-actions .btn { text-align: center; }
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .product-card .card-img { aspect-ratio: 3/2; }
  .product-card .card-body { padding: 10px; }
  .product-card h3 { font-size: 13px; }
  .supplier-grid { grid-template-columns: 1fr; }
  .article-grid { grid-template-columns: 1fr; }
  .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .cat-showcase { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .form-row { grid-template-columns: 1fr; }
  .mobile-toggle { display: flex; }
  .header-cta { display: none; }
  .cat-nav { overflow: hidden; }
  .cat-nav-inner { overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; padding: 0 16px; gap: 0; }
  .cat-nav-inner::-webkit-scrollbar { display: none; }
  .cat-nav-inner a { white-space: nowrap; padding: 10px 14px; font-size: 13px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .supplier-profile-stats { flex-wrap: wrap; gap: 12px; }
  .section { padding: 32px 0; }
  .section-header { margin-bottom: 20px; }
  .section-header h2 { font-size: 20px; }
  .trust-bar { display: none; }
  .mobile-inquiry-bar { display: block; }
  body { padding-bottom: 64px; }
  .cta-bar { padding: 36px 0; }
  .cta-bar h2 { font-size: 20px; }
  .cta-bar p { font-size: 14px; }
  .inquiry-layout { gap: 24px; }
  .inquiry-sidebar { order: 2; }
}

@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .product-card .card-img { aspect-ratio: 1/1; }
  .product-card .card-body { padding: 8px; }
  .product-card h3 { font-size: 12px; -webkit-line-clamp: 1; }
  .card-grid-3, .card-grid-2 { grid-template-columns: 1fr; }
  .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .card-grid .card-img { aspect-ratio: 3/2; }
  .cat-showcase { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .hero-stats { flex-direction: column; gap: 10px; align-items: flex-start; }
  .hero-banner { padding: 32px 0; }
  .hero-content h1 { font-size: 22px; }
  .container { padding: 0 14px; }
  .section { padding: 24px 0; }
  .supplier-card { padding: 14px; }
  .supplier-card h3 { font-size: 15px; }
  .cta-bar h2 { font-size: 18px; }
  .footer-brand .logo-text { font-size: 18px; }
  .mobile-inquiry-bar { padding: 8px 12px; }
  .mobile-inquiry-bar .btn { font-size: 13px; padding: 10px 12px; }
}

/* ── Product Filter Bar ── */
.product-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--mic-border, #e5e7eb);
}
.filter-tag {
    display: inline-block;
    padding: 6px 16px;
    font-size: 14px;
    color: var(--mic-text, #374151);
    background: var(--mic-light, #f3f4f6);
    border-radius: 20px;
    text-decoration: none;
    transition: background .2s, color .2s;
    white-space: nowrap;
}
.filter-tag:hover {
    background: var(--mic-orange, #e8540c);
    color: #fff;
}
.filter-tag--active {
    background: var(--mic-orange, #e8540c);
    color: #fff;
    font-weight: 500;
}

/* ── Hero RFQ (homepage inline quote form) ── */
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 400px; gap: 48px; align-items: center; }
.hero-grid .hero-content { max-width: none; margin: 0; }
.hero-rfq { background: var(--mic-white, #fff); border-radius: var(--radius-lg); padding: 24px; box-shadow: 0 20px 50px rgba(0,0,0,0.28); }
.hero-rfq-head { margin-bottom: 16px; }
.hero-rfq-title { font-size: 20px; font-weight: 800; color: var(--mic-dark); margin: 0 0 6px; letter-spacing: -0.01em; }
.hero-rfq-sub { font-size: 13px; color: var(--mic-muted); margin: 0; line-height: 1.5; }
.hero-rfq-form .form-group { margin-bottom: 12px; }
.hero-rfq-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.hero-rfq-form input { width: 100%; height: 44px; padding: 0 14px; font-size: 14px; color: var(--mic-dark); background: #f6f8fb; border: 1px solid var(--mic-border); border-radius: var(--radius); outline: none; transition: border-color var(--transition-fast), box-shadow var(--transition-fast); }
.hero-rfq-form input::placeholder { color: #9aa3af; }
.hero-rfq-form input:focus { border-color: var(--mic-blue); box-shadow: 0 0 0 3px rgba(37,99,235,0.12); background: #fff; }
.hero-rfq-form .btn-block { width: 100%; margin-top: 4px; }
.hero-rfq-note { font-size: 12px; color: var(--mic-muted); text-align: center; margin: 10px 0 0; }
.hero-rfq .inquiry-success { text-align: center; padding: 18px 6px; }
.hero-rfq .inquiry-success h2 { font-size: 18px; color: var(--mic-dark); margin-bottom: 8px; }
.hero-rfq .inquiry-success p { font-size: 13px; color: var(--mic-muted); margin-bottom: 14px; line-height: 1.6; }

/* Large supplier logo placeholder (supplier detail fallback) */
.supplier-logo-placeholder-lg { width: 88px; height: 88px; flex-shrink: 0; border-radius: var(--radius-lg); background: linear-gradient(135deg, var(--mic-blue), #6366f1); color: #fff; font-size: 34px; font-weight: 700; display: flex; align-items: center; justify-content: center; }

@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-rfq { max-width: 520px; }
}