/* ============================================================
   Bianyun Trading — Main Stylesheet
   ============================================================ */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: #334155; line-height: 1.6; background: #fff; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---------- CSS Variables ---------- */
:root {
    --primary:   #1a3c5e;
    --accent:    #f59e0b;
    --light-bg:  #f8fafc;
    --border:    #e2e8f0;
    --text:      #334155;
    --muted:     #64748b;
    --white:     #ffffff;
    --whatsapp:  #25D366;
    --radius:    12px;
    --shadow:    0 4px 24px rgba(0,0,0,0.08);
}

/* ---------- Container ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.25s ease;
    text-align: center;
}
.btn-primary   { background: var(--accent); color: #1a1a1a; }
.btn-primary:hover { background: #d97706; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245,158,11,0.35); }
.btn-secondary { background: transparent; color: #fff; border-color: #fff; }
.btn-secondary:hover { background: #fff; color: var(--primary); }
.btn-large     { padding: 15px 36px; font-size: 1.05rem; }

/* ---------- Top Bar ---------- */
.top-bar { background: var(--primary); padding: 8px 0; font-size: 0.85rem; }
.top-bar-content { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }

/*
.contact-info { display: flex; gap: 1.5rem; }
.contact-info a { color: #fff; display: flex; align-items: center; gap: 6px; transition: color 0.2s; }
.contact-info a:hover { color: var(--accent); }
*/
.top-bar .contact-info { display: flex; flex-direction: row; flex-wrap: wrap; gap: 1.5rem; align-items: center; }
.top-bar .contact-info a { color: #fff; display: flex; align-items: center; gap: 6px; transition: color 0.2s; }
.top-bar .contact-info a:hover { color: var(--accent); }

.social-links { display: flex; gap: 0.75rem; }
.social-links a { color: rgba(255,255,255,0.7); width: 30px; height: 30px; border-radius: 50%; background: rgba(255,255,255,0.1); display: flex; align-items: center; justify-content: center; font-size: 0.8rem; transition: all 0.2s; }
.social-links a:hover { background: var(--accent); color: #fff; }

/* ---------- Navbar ---------- */
.navbar { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.08); position: sticky; top: 0; z-index: 1000; }
.nav-content { display: flex; align-items: center; justify-content: space-between; padding: 0.9rem 0; }
.logo a { text-decoration: none; }
.logo h1 { font-size: 1.6rem; font-weight: 700; color: var(--primary); letter-spacing: -0.5px; }
.logo h1 span { color: var(--accent); }
.nav-menu { display: flex; gap: 0.25rem; }
.nav-link { padding: 8px 16px; border-radius: 6px; font-weight: 500; font-size: 0.9rem; color: var(--text); transition: all 0.2s; }
.nav-link:hover, .nav-link.active { background: var(--primary); color: #fff; }
.mobile-menu-toggle { display: none; background: none; border: none; cursor: pointer; font-size: 1.3rem; color: var(--primary); padding: 4px; }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 92vh; background: linear-gradient(135deg, #0f2338 0%, #1a3c5e 50%, #2d6a9f 100%); display: flex; align-items: center; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: url('https://images.unsplash.com/photo-1504328345606-18bbc8c9d7d1?w=1400&q=60') center/cover; opacity: 0.12; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(15,35,56,0.92) 0%, rgba(26,60,94,0.82) 100%); }
.hero-content { position: relative; z-index: 2; max-width: 780px; padding: 4rem 0; }
.hero-content h1 { font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 700; color: #fff; line-height: 1.25; margin-bottom: 1.2rem; }
.hero-content p { font-size: 1.1rem; color: rgba(255,255,255,0.85); margin-bottom: 2rem; line-height: 1.7; }
.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; }
.scroll-indicator { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,0.5); text-align: center; font-size: 0.8rem; animation: bounce 2s infinite; z-index: 2; }
.scroll-indicator i { display: block; margin-top: 4px; }
@keyframes bounce { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(8px)} }

/* ---------- Features ---------- */
.features { padding: 60px 0; background: #fff; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; }
.feature-card { background: var(--light-bg); border-radius: var(--radius); padding: 2rem 1.5rem; text-align: center; border: 1px solid var(--border); transition: transform 0.3s, box-shadow 0.3s; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-card i { font-size: 2rem; color: var(--accent); margin-bottom: 1rem; }
.feature-card h3 { font-size: 1rem; font-weight: 600; color: var(--primary); margin-bottom: 0.5rem; }
.feature-card p { font-size: 0.88rem; color: var(--muted); line-height: 1.6; }

/* ---------- Section Header ---------- */
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; color: var(--primary); margin-bottom: 0.6rem; }
.section-header p { color: var(--muted); font-size: 1rem; }

/* ---------- Products (index) ---------- */
.products { padding: 80px 0; background: var(--light-bg); }
.products-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.product-card { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); transition: transform 0.3s, box-shadow 0.3s; }
.product-card:hover { transform: translateY(-5px); box-shadow: 0 12px 32px rgba(0,0,0,0.1); }
.product-img-wrap { height: 200px; overflow: hidden; }
.product-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.product-card:hover .product-img-wrap img { transform: scale(1.06); }
.product-card h3 { font-size: 1.1rem; font-weight: 600; color: var(--primary); padding: 1.2rem 1.2rem 0.4rem; }
.product-card p { font-size: 0.88rem; color: var(--muted); padding: 0 1.2rem 1rem; line-height: 1.6; }
.product-link { display: inline-flex; align-items: center; gap: 6px; margin: 0 1.2rem 1.2rem; font-size: 0.88rem; font-weight: 600; color: var(--primary); transition: gap 0.2s; }
.product-link:hover { gap: 10px; color: var(--accent); }

/* ---------- About (index) ---------- */
.about { padding: 80px 0; background: #fff; }
.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-text h2 { font-size: clamp(1.4rem, 2.5vw, 2rem); font-weight: 700; color: var(--primary); margin-bottom: 1rem; }
.about-text p { color: var(--muted); line-height: 1.8; margin-bottom: 1rem; }
.about-stats { display: flex; gap: 2rem; margin-top: 1.5rem; flex-wrap: wrap; }
.stat h4 { font-size: 1.8rem; font-weight: 700; color: var(--accent); }
.stat span { font-size: 0.82rem; color: var(--muted); display: block; }
.about-image img { width: 100%; height: 380px; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow); }

/* ---------- Testimonials ---------- */
.testimonials { padding: 80px 0; background: var(--light-bg); }
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; margin-top: 2.5rem; }
.testimonial-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; position: relative; transition: transform 0.3s, box-shadow 0.3s; }
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.testimonial-card::before { content: '\201C'; font-size: 5rem; color: #e2e8f0; position: absolute; top: 8px; left: 18px; line-height: 1; font-family: Georgia, serif; pointer-events: none; }
.testimonial-stars { color: var(--accent); margin-bottom: 1rem; }
.testimonial-text { color: var(--muted); font-style: italic; line-height: 1.75; margin-bottom: 1.5rem; position: relative; z-index: 1; }
.testimonial-author { display: flex; align-items: center; gap: 1rem; border-top: 1px solid var(--border); padding-top: 1rem; }
.author-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--primary); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1rem; flex-shrink: 0; }
.author-info h4 { font-size: 0.9rem; font-weight: 600; color: var(--primary); margin: 0 0 2px; }
.author-info span { font-size: 0.8rem; color: #94a3b8; }
.testimonial-disclaimer { text-align: center; font-size: 0.8rem; color: #94a3b8; margin-top: 2rem; font-style: italic; }

/* ---------- Why Us Comparison ---------- */
.why-us { padding: 80px 0; background: #fff; }
.comparison-table { overflow-x: auto; margin-top: 2rem; border-radius: var(--radius); box-shadow: var(--shadow); }
.comparison-table table { width: 100%; border-collapse: collapse; background: #fff; font-size: 0.9rem; }
.comparison-table thead tr { background: var(--primary); color: #fff; }
.comparison-table thead th { padding: 16px 18px; text-align: left; font-weight: 600; }
.comparison-table thead th i.fa-check-circle { color: #4ade80; margin-right: 6px; }
.comparison-table thead th i.fa-times-circle { color: #f87171; margin-right: 6px; }
.comparison-table tbody tr { border-bottom: 1px solid var(--border); transition: background 0.2s; }
.comparison-table tbody tr:hover { background: #f0f7ff; }
.comparison-table tbody td { padding: 13px 18px; vertical-align: top; }
.comparison-table tbody td:first-child { font-weight: 600; color: var(--primary); }
.comparison-table td.yes { color: #166534; }
.comparison-table td.yes::before { content: "✓ "; color: #22c55e; font-weight: 700; }
.comparison-table td.no { color: #991b1b; }
.comparison-table td.no::before { content: "✗ "; color: #ef4444; font-weight: 700; }

/* ---------- Services (index + page) ---------- */
.services { padding: 80px 0; background: var(--light-bg); }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }
.service-card { background: #fff; border-radius: var(--radius); padding: 2rem 1.5rem; text-align: center; border: 1px solid var(--border); transition: transform 0.3s, box-shadow 0.3s; }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.service-card i { font-size: 2rem; color: var(--accent); margin-bottom: 1rem; }
.service-card h3 { font-size: 1rem; font-weight: 600; color: var(--primary); margin-bottom: 0.5rem; }
.service-card p { font-size: 0.85rem; color: var(--muted); line-height: 1.6; }

/* ---------- Contact (index + page) ---------- */
.contact { padding: 80px 0; background: var(--primary); }
.contact .section-header h2, .contact .section-header p { color: #fff; }
.contact .section-header p { color: rgba(255,255,255,0.8); }
.contact-content { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
/*.contact-info { display: flex; flex-direction: column; gap: 1.5rem; }*/
.contact .contact-info { display: flex; flex-direction: row; gap: 1.5rem; }
.contact-item { display: flex; align-items: flex-start; gap: 1rem; }
.contact-item i { font-size: 1.2rem; color: var(--accent); margin-top: 2px; flex-shrink: 0; }
.contact-item h4 { font-weight: 600; color: #fff; margin-bottom: 2px; }
.contact-item p, .contact-item a { color: #fff; font-size: 0.9rem; }
.contact-item a:hover { color: var(--accent); }
.contact-form-wrap { display: flex; flex-direction: column; gap: 1rem; }

/* ---------- Page Header (inner pages) ---------- */
.page-header { background: linear-gradient(135deg, var(--primary) 0%, #2d6a9f 100%); padding: 4rem 0 3rem; color: #fff; }
.page-header h1 { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 700; margin-bottom: 0.5rem; }
.breadcrumb { font-size: 0.88rem; color: rgba(255,255,255,0.7); }
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--accent); }

/* ---------- Page Intro ---------- */
.page-intro { text-align: center; max-width: 800px; margin: 0 auto 3rem; }
.page-intro h2 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); font-weight: 700; color: var(--primary); margin-bottom: 0.75rem; }
.page-intro p { color: var(--muted); line-height: 1.8; }

/* ---------- Products Page ---------- */
.products-page { padding: 60px 0; }
.product-quick-nav { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 0 0 3rem; justify-content: center; }
.product-quick-nav a { background: var(--light-bg); color: var(--primary); padding: 10px 20px; border-radius: 30px; font-weight: 500; font-size: 0.88rem; border: 2px solid var(--border); transition: all 0.25s; display: flex; align-items: center; gap: 6px; }
.product-quick-nav a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Category blocks */
.product-category-block { margin-bottom: 5rem; scroll-margin-top: 90px; }
.category-header { display: flex; align-items: flex-start; gap: 2.5rem; background: linear-gradient(135deg, var(--primary) 0%, #2d6a9f 100%); color: #fff; border-radius: var(--radius); padding: 2.5rem; margin-bottom: 2rem; }
.category-header h2 { color: #fff; font-size: 1.6rem; margin-bottom: 0.75rem; }
.category-header h2 i { margin-right: 10px; color: var(--accent); }
.category-header p { color: rgba(255,255,255,0.85); line-height: 1.7; margin: 0; }
.category-header-text { flex: 1; }
.category-hero-img { width: 220px; height: 160px; object-fit: cover; border-radius: 10px; flex-shrink: 0; box-shadow: 0 8px 24px rgba(0,0,0,0.3); }

/* Product item cards */
.product-items-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.5rem; }
.product-item-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: transform 0.3s, box-shadow 0.3s; }
.product-item-card:hover { transform: translateY(-5px); box-shadow: 0 12px 32px rgba(0,0,0,0.1); }
.product-item-img-wrap { height: 200px; overflow: hidden; background: var(--light-bg); }
.product-item-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.product-item-card:hover .product-item-img-wrap img { transform: scale(1.06); }
.product-item-info { padding: 1.25rem; }
.product-item-info h4 { font-size: 1rem; font-weight: 600; color: var(--primary); margin-bottom: 0.4rem; }
.product-item-info p { font-size: 0.85rem; color: var(--muted); line-height: 1.6; margin-bottom: 0.75rem; }
.product-item-info ul { padding: 0; margin: 0 0 1rem; }
.product-item-info ul li { font-size: 0.82rem; color: #475569; padding: 2px 0; }
.product-item-info ul li::before { content: "✓ "; color: #22c55e; font-weight: 700; }
.btn-quote { display: inline-flex; align-items: center; gap: 6px; background: var(--primary); color: #fff; padding: 8px 16px; border-radius: 6px; font-size: 0.84rem; font-weight: 500; transition: background 0.2s; }
.btn-quote:hover { background: #2d6a9f; color: #fff; }

/* Products CTA */
.products-cta { text-align: center; background: linear-gradient(135deg, var(--primary), #2d6a9f); color: #fff; padding: 3.5rem 2rem; border-radius: var(--radius); margin-top: 3rem; }
.cta-icon { font-size: 2.5rem; color: var(--accent); margin-bottom: 1rem; }
.products-cta h2 { color: #fff; margin-bottom: 1rem; font-size: 1.6rem; }
.products-cta p { color: rgba(255,255,255,0.85); max-width: 560px; margin: 0 auto 2rem; line-height: 1.7; }
.cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn-whatsapp { display: inline-flex; align-items: center; gap: 8px; background: var(--whatsapp); color: #fff; padding: 14px 28px; border-radius: 8px; font-weight: 600; font-size: 1rem; transition: background 0.2s, transform 0.2s; }
.btn-whatsapp:hover { background: #1da851; transform: translateY(-2px); color: #fff; }

/* ---------- About Page ---------- */
.about-page { padding: 60px 0; }
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; align-items: center; margin-bottom: 4rem; }
.intro-text h2 { font-size: 1.8rem; font-weight: 700; color: var(--primary); margin-bottom: 1rem; }
.intro-text p { color: var(--muted); line-height: 1.8; margin-bottom: 1rem; }
.intro-image img { width: 100%; height: 360px; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow); }
.mission-vision { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-bottom: 4rem; }
.mission-card, .vision-card { background: var(--light-bg); border-radius: var(--radius); padding: 2rem; border: 1px solid var(--border); }

.mission-card i, .vision-card i { font-size: 2rem; color: var(--accent); margin-bottom: 1rem; }
.mission-card h3, .vision-card h3 { color: var(--primary); font-weight: 600; margin-bottom: 0.75rem; }
.mission-card p, .vision-card p { color: var(--muted); line-height: 1.7; font-size: 0.9rem; }
.values-section { margin-bottom: 4rem; }
.values-section h2 { font-size: 1.8rem; color: var(--primary); font-weight: 700; margin-bottom: 2rem; text-align: center; }
.values-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.5rem; }
.value-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 1.75rem; text-align: center; }
.value-item i { font-size: 1.8rem; color: var(--accent); margin-bottom: 0.75rem; }
.value-item h4 { color: var(--primary); font-weight: 600; margin-bottom: 0.5rem; }
.value-item p { color: var(--muted); font-size: 0.85rem; line-height: 1.6; }
.team-section { margin-bottom: 4rem; }
.team-section h2 { font-size: 1.8rem; color: var(--primary); font-weight: 700; margin-bottom: 1rem; }
.team-section > p { color: var(--muted); line-height: 1.7; margin-bottom: 2rem; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; }
.team-member { text-align: center; padding: 1.75rem 1rem; background: var(--light-bg); border-radius: var(--radius); border: 1px solid var(--border); }
.member-avatar { width: 60px; height: 60px; border-radius: 50%; background: var(--primary); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.4rem; margin: 0 auto 1rem; }
.team-member h4 { color: var(--primary); font-weight: 600; margin-bottom: 0.25rem; }
.team-member p { color: var(--muted); font-size: 0.82rem; }
.stats-section { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1.5rem; background: var(--primary); border-radius: var(--radius); padding: 2.5rem; }
.stat-box { text-align: center; }
.stat-box h3 { font-size: 2rem; font-weight: 700; color: var(--accent); }
.stat-box p { color: rgba(255,255,255,0.8); font-size: 0.85rem; margin-top: 4px; }

/* ---------- Services Page ---------- */
.services-page { padding: 60px 0; }
.services-detail { display: flex; flex-direction: column; gap: 2.5rem; margin-bottom: 4rem; }
.service-detail-card { display: flex; gap: 2rem; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 2.5rem; transition: box-shadow 0.3s; }
.service-detail-card:hover { box-shadow: var(--shadow); }
.service-icon { width: 64px; height: 64px; border-radius: 14px; background: var(--primary); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.service-icon i { font-size: 1.6rem; color: var(--accent); }
.service-info h3 { font-size: 1.2rem; font-weight: 600; color: var(--primary); margin-bottom: 0.75rem; }
.service-info p { color: var(--muted); line-height: 1.7; margin-bottom: 1rem; }
.service-info ul { margin: 0 0 1.5rem; }
.service-info ul li { display: flex; align-items: center; gap: 8px; color: #475569; font-size: 0.9rem; padding: 4px 0; }
.service-info ul li i { color: #22c55e; font-size: 0.8rem; }
.service-benefits { margin-bottom: 3rem; }
.service-benefits h2 { font-size: 1.8rem; color: var(--primary); font-weight: 700; margin-bottom: 2rem; text-align: center; }
.benefits-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; }
.benefit-item { text-align: center; padding: 2rem 1.5rem; background: var(--light-bg); border-radius: var(--radius); border: 1px solid var(--border); }
.benefit-item i { font-size: 1.8rem; color: var(--accent); margin-bottom: 0.75rem; }
.benefit-item h4 { color: var(--primary); font-weight: 600; margin-bottom: 0.4rem; }
.benefit-item p { color: var(--muted); font-size: 0.85rem; }
.services-cta { text-align: center; background: linear-gradient(135deg, var(--primary), #2d6a9f); border-radius: var(--radius); padding: 3.5rem 2rem; color: #fff; }
.services-cta h2 { color: #fff; font-size: 1.8rem; margin-bottom: 1rem; }
.services-cta p { color: rgba(255,255,255,0.85); margin-bottom: 2rem; max-width: 560px; margin-inline: auto; line-height: 1.7; }

/* ---------- Contact Page ---------- */
.contact-page { padding: 60px 0; }
.contact-wrapper { display: grid; grid-template-columns: 1fr 1.5fr; gap: 3rem; margin-bottom: 4rem; }
.contact-info-side { display: flex; flex-direction: column; gap: 1.25rem; }
.contact-card { background: var(--light-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.contact-card i { font-size: 1.5rem; color: var(--accent); margin-bottom: 0.5rem; }
.contact-card h3 { font-size: 0.95rem; font-weight: 600; color: var(--primary); margin-bottom: 0.3rem; }
.contact-card p, .contact-card a { font-size: 0.88rem; color: var(--muted); }
.contact-card a:hover { color: var(--accent); }
.social-links-large { display: flex; gap: 0.75rem; margin-top: 0.5rem; }
.social-links-large a { width: 40px; height: 40px; border-radius: 50%; background: var(--primary); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1rem; transition: background 0.2s, transform 0.2s; }
.social-links-large a:hover { background: var(--accent); transform: scale(1.1); }
.contact-form-side .form-container { background: var(--light-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; }
.contact-form-side .form-container h3 { font-size: 1.2rem; font-weight: 600; color: var(--primary); margin-bottom: 0.5rem; }

/** 2026-05-31 add by airuy  start ,表单样式  start */
.contact-form-side .form-container .wpforms-form { width: 100%; }
.contact-form-side .form-container .wpforms-field { margin-bottom: 1.2rem; }
.contact-form-side .form-container .wpforms-field label { display: block; font-weight: 600; color: var(--primary); margin-bottom: 0.5rem; font-size: 0.95rem; }
.contact-form-side .form-container .wpforms-field input,
.contact-form-side .form-container .wpforms-field textarea,
.contact-form-side .form-container .wpforms-field select { width: 100%; padding: 0.9rem 1rem; border: 1px solid var(--border); border-radius: 12px; background: #fff; color: var(--text); font-size: 0.95rem; transition: border-color 0.2s, box-shadow 0.2s; }
.contact-form-side .form-container .wpforms-field input:focus,
.contact-form-side .form-container .wpforms-field textarea:focus,
.contact-form-side .form-container .wpforms-field select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(26,60,94,0.08); }
.contact-form-side .form-container .wpforms-field textarea { min-height: 160px; resize: vertical; }
.contact-form-side .form-container .wpforms-field .wpforms-required-label {color:#d63638;}
.contact-form-side .form-container .wpforms-field-description { color: var(--muted); font-size: 0.85rem; margin-top: 0.4rem; }
.contact-form-side .form-container .wpforms-submit { margin-top: 0rem;padding: 10px 20px;border-radius: 10px;border: 1px solid #ccc;font-size: 18px; }
.contact-form-side .form-container .wpforms-submit button { width: 100%; padding: 14px 20px; border-radius: 10px; border: none; background: var(--accent); color: #1a1a1a; font-weight: 700; font-size: 1rem; cursor: pointer; transition: background 0.2s, transform 0.2s; }
.contact-form-side .form-container .wpforms-submit button:hover { background: #d97706; transform: translateY(-1px); }
.contact-form-side .form-container .wpforms-error { border-color: #f87171; background: rgba(248,113,113,0.08); }
.contact-form-side .form-container .wpforms-error input,
.contact-form-side .form-container .wpforms-error textarea,
.contact-form-side .form-container .wpforms-error select { border-color: #f87171; }
.contact-form-side .form-container .wpforms-error-help { color: #b91c1c; font-size: 0.85rem; margin-top: 0.25rem; }

.contact-form-side .form-container fieldset{border: 1px solid #e8e8e8;padding: 10px 20px;border-radius: 10px;}

/** 2026-05-31 add by airuy  start ,表单样式  end */

.contact-faq { margin-top: 2rem; }
.contact-faq h2 { font-size: 1.8rem; color: var(--primary); font-weight: 700; margin-bottom: 2rem; text-align: center; }
.faq-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.faq-item { background: var(--light-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; }
.faq-item h4 { font-size: 0.95rem; font-weight: 600; color: var(--primary); margin-bottom: 0.6rem; display: flex; align-items: center; gap: 8px; }
.faq-item h4 i { color: var(--accent); }
.faq-item p { font-size: 0.85rem; color: var(--muted); line-height: 1.65; }

/* ---------- Footer ---------- */
.footer { background: #0f2338; color: rgba(255,255,255,0.8); padding: 60px 0 0; }
.footer-content { display: grid; grid-template-columns: 2fr 1fr 1.5fr 1.5fr; gap: 2.5rem; padding-bottom: 2.5rem; }
.footer-about h3 { font-size: 1.3rem; font-weight: 700; color: #fff; margin-bottom: 0.75rem; }
.footer-about h3 span { color: var(--accent); }
.footer-about p { font-size: 0.85rem; line-height: 1.7; color: rgba(255,255,255,0.65); }
.footer h4 { font-size: 0.9rem; font-weight: 600; color: #fff; margin-bottom: 1rem; text-transform: uppercase; letter-spacing: 0.5px; }
.footer ul li { margin-bottom: 0.4rem; }
.footer ul li a { font-size: 0.85rem; color: rgba(255,255,255,0.65); transition: color 0.2s; }
.footer ul li a:hover { color: var(--accent); }
.footer-contact p { font-size: 0.85rem; color: rgba(255,255,255,0.65); margin-bottom: 0.4rem; display: flex; align-items: center; gap: 8px; }
.footer-contact a { color: #fff; }
.footer-contact a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 1.2rem 0; text-align: center; font-size: 0.82rem; color: rgba(255,255,255,0.4); }

/* ---------- WhatsApp Float — always fixed right side ---------- */
.whatsapp-float {
    position: fixed;
    right: 24px;
    bottom: 100px;
    z-index: 99999;
    background: var(--whatsapp);
    color: #fff;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    box-shadow: 0 4px 20px rgba(37,211,102,0.5);
    text-decoration: none;
    transition: transform 0.25s, box-shadow 0.25s;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(37,211,102,0.7); color: #fff; }
.whatsapp-tooltip {
    position: absolute;
    right: 64px;
    top: 50%;
    transform: translateY(-50%);
    background: #1a1a1a;
    color: #fff;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    font-weight: 500;
}
.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-left-color: #1a1a1a;
}
.whatsapp-float:hover .whatsapp-tooltip { opacity: 1; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
    .footer-content { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .mobile-menu-toggle { display: block; }
    .nav-menu { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; flex-direction: column; padding: 1rem; box-shadow: 0 8px 24px rgba(0,0,0,0.12); z-index: 999; }
    .nav-menu.active { display: flex; }
    .about-content, .about-intro, .contact-content, .mission-vision, .contact-wrapper { grid-template-columns: 1fr; gap: 2rem; }
    .category-header { flex-direction: column; }
    .category-hero-img { width: 100%; height: 200px; }
    .product-items-grid { grid-template-columns: 1fr 1fr; }
    .service-detail-card { flex-direction: column; }
    .footer-content { grid-template-columns: 1fr 1fr; }
    .hero { min-height: 80vh; }
    .hero-buttons { flex-direction: column; align-items: flex-start; }
    .whatsapp-float { right: 16px; bottom: 80px; width: 50px; height: 50px; font-size: 1.4rem; }
}
@media (max-width: 480px) {
    .product-items-grid { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr; }
    .comparison-table table { font-size: 0.82rem; }
    .top-bar { display: none; }
}

/* ===== Quality Promise Bar ===== */
.quality-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    background: #1a3c5e;
    border-radius: 12px;
    overflow: hidden;
    margin: 2rem 0 2.5rem;
}
.quality-item {
    flex: 1;
    min-width: 180px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px;
    color: #fff;
    font-size: 0.88rem;
    font-weight: 500;
    border-right: 1px solid rgba(255,255,255,0.1);
}
.quality-item:last-child { border-right: none; }
.quality-item i { color: #f59e0b; font-size: 1.1rem; flex-shrink: 0; }

/* ===== Spec Table inside product cards ===== */
.spec-table {
    background: #f8fafc;
    border-radius: 8px;
    overflow: hidden;
    margin: 0.75rem 0 1rem;
    border: 1px solid #e2e8f0;
    font-size: 0.8rem;
}
.spec-row {
    display: flex;
    border-bottom: 1px solid #e2e8f0;
}
.spec-row:last-child { border-bottom: none; }
.spec-row span:first-child {
    background: #eef2f7;
    color: #1a3c5e;
    font-weight: 600;
    padding: 6px 10px;
    min-width: 100px;
    width: 100px;
    flex-shrink: 0;
}
.spec-row span:last-child {
    color: #475569;
    padding: 6px 10px;
    line-height: 1.4;
}

/* ===== Products Quality Section ===== */
.products-quality {
    background: #f8fafc;
    border-radius: 16px;
    padding: 3rem;
    margin: 3rem 0;
}
.products-quality h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #1a3c5e;
}
.quality-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}
.quality-point {
    background: #fff;
    border-radius: 10px;
    padding: 1.5rem;
    border: 1px solid #e2e8f0;
}
.quality-point i {
    font-size: 1.8rem;
    color: #f59e0b;
    margin-bottom: 0.75rem;
    display: block;
}
.quality-point h4 {
    color: #1a3c5e;
    font-size: 1rem;
    margin-bottom: 0.5rem;
}
.quality-point p {
    font-size: 0.88rem;
    color: #64748b;
    line-height: 1.65;
    margin: 0;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .quality-bar { flex-direction: column; }
    .quality-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.1); }
    .spec-row span:first-child { min-width: 90px; width: 90px; }
}