/* === LuxyVolt — Amazon/DTC Cross-Border Style === */
/* 清雅玉色系 Jade-Teal Palette */
:root {
    --bg: #ffffff;
    --bg-alt: #f7f9f8;
    --bg-card: #ffffff;
    --border: #e8edeb;
    --text: #1a1f1d;
    --text-dim: #565f5b;
    --text-muted: #889591;
    --accent: #e77600;
    --accent-hover: #d56b00;
    --accent-light: #fff8f0;
    --accent-teal: #4a8c7e;
    --accent-teal-light: #f2f8f6;
    --white: #ffffff;
    --green: #067d62;
    --red: #c40000;
    --gold: #f0a500;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-lg: 0 4px 20px rgba(0,0,0,0.08);
    --max-width: 1280px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* === Announcement Bar === */
.announce-bar {
    background: #1a1f1d; color: #fff;
    text-align: center; padding: 8px 16px; font-size: 0.78rem;
    font-weight: 500; letter-spacing: 0.01em;
}
.announce-bar .ann-divider { margin: 0 12px; opacity: 0.3; }

/* === Nav === */
.nav {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(255,255,255,0.97); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between; height: 60px;
}
.logo {
    font-size: 1.35rem; font-weight: 700; color: var(--text); text-decoration: none;
    display: flex; align-items: center; gap: 6px;
}
.logo-icon { font-size: 1.1rem; }
.logo-accent { color: var(--accent-teal); }
.nav-links { display: flex; list-style: none; gap: 32px; }
.nav-links a {
    color: var(--text-dim); text-decoration: none; font-size: 0.88rem;
    font-weight: 500; transition: color 0.15s;
}
.nav-links a:hover { color: var(--accent); }
.nav-search {
    display: flex; align-items: center; gap: 8px;
}
.btn-nav {
    background: var(--accent); color: #fff; padding: 9px 20px;
    border-radius: 20px; text-decoration: none; font-weight: 600; font-size: 0.85rem;
    transition: all 0.15s; white-space: nowrap;
}
.btn-nav:hover { background: var(--accent-hover); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* === Trust Strip === */
.trust-strip {
    background: var(--bg-alt); border-bottom: 1px solid var(--border);
    padding: 12px 24px; display: flex; justify-content: center; gap: 40px;
    flex-wrap: wrap;
}
.trust-item {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.8rem; color: var(--text-dim); font-weight: 500;
}
.trust-item .t-icon { font-size: 1.1rem; }

/* === Hero === */
.hero {
    position: relative; min-height: 85vh; display: flex; align-items: center;
    padding: 80px 24px; overflow: hidden;
    background: linear-gradient(180deg, #f7f9f8 0%, #ffffff 100%);
}
.hero-bg {
    position: absolute; inset: 0;
    background: radial-gradient(ellipse 70% 50% at 50% 25%, rgba(74,140,126,0.04) 0%, transparent 60%);
}
.hero-content { position: relative; z-index: 1; max-width: 850px; margin: 0 auto; text-align: center; }
.hero-badge {
    display: inline-block; padding: 5px 14px; background: var(--accent-teal-light);
    color: var(--accent-teal); border-radius: 20px; font-size: 0.75rem;
    font-weight: 600; margin-bottom: 24px; letter-spacing: 0.02em;
}
.hero-title {
    font-size: clamp(2.2rem, 5.5vw, 3.5rem); font-weight: 700; line-height: 1.15;
    color: var(--text); margin-bottom: 20px; letter-spacing: -0.02em;
}
.hero-highlight { color: var(--accent); }
.hero-desc {
    font-size: 1.05rem; color: var(--text-dim); max-width: 600px;
    margin: 0 auto 36px; line-height: 1.65;
}
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 50px; }
.btn-primary, .btn-outline {
    padding: 14px 36px; border-radius: 24px; font-weight: 600;
    font-size: 0.95rem; text-decoration: none; transition: all 0.15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(231,118,0,0.25); }
.btn-outline { border: 1.5px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--text-dim); }

.hero-stats { display: flex; gap: 40px; justify-content: center; flex-wrap: wrap; }
.stat { text-align: center; }
.stat-num { display: block; font-size: 1.6rem; font-weight: 700; color: var(--accent-teal); }
.stat-label { font-size: 0.82rem; color: var(--text-muted); margin-top: 2px; }

/* === Sections === */
section { padding: 80px 24px; }
.section-header { text-align: center; max-width: 650px; margin: 0 auto 50px; }
.section-tag {
    display: inline-block; padding: 4px 12px; background: var(--accent-teal-light);
    color: var(--accent-teal); border-radius: 20px; font-size: 0.72rem;
    font-weight: 600; margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.06em;
}
.section-header h2 { font-size: 2rem; font-weight: 700; color: var(--text); margin-bottom: 10px; letter-spacing: -0.01em; }
.section-header p { color: var(--text-dim); font-size: 1rem; }

/* === Category Browse === */
.categories { background: var(--bg); }
.cat-grid {
    max-width: var(--max-width); margin: 0 auto;
    display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px;
}
.cat-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 24px 16px; text-align: center;
    text-decoration: none; transition: all 0.2s; cursor: pointer;
}
.cat-card:hover { border-color: var(--accent); box-shadow: var(--shadow); transform: translateY(-2px); }
.cat-icon { font-size: 2rem; margin-bottom: 10px; }
.cat-name { color: var(--text); font-size: 0.88rem; font-weight: 600; }
.cat-count { color: var(--text-muted); font-size: 0.75rem; margin-top: 4px; }

/* === Products === */
.products { background: var(--bg-alt); }
.product-grid {
    max-width: var(--max-width); margin: 0 auto;
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px;
}
.product-card {
    background: var(--bg-card); border-radius: var(--radius-lg); overflow: hidden;
    border: 1px solid var(--border); transition: all 0.2s; display: flex; flex-direction: column;
}
.product-card:hover { border-color: var(--accent); box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.product-img {
    height: 220px; background: linear-gradient(135deg, #f5f8f6, #edf2f0);
    display: flex; align-items: center; justify-content: center; position: relative;
}
.product-img-placeholder { font-size: 3.5rem; opacity: 0.7; }
.product-badge {
    position: absolute; top: 10px; left: 10px;
    background: var(--accent); color: #fff; padding: 3px 10px;
    border-radius: 4px; font-size: 0.65rem; font-weight: 700; text-transform: uppercase;
}
.product-badge.new { background: var(--green); }
.product-badge.hot { background: var(--red); }
.product-info { padding: 16px; flex: 1; display: flex; flex-direction: column; }
.product-cat { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; font-weight: 600; margin-bottom: 4px; }
.product-info h3 { font-size: 1rem; color: var(--text); margin-bottom: 6px; font-weight: 600; line-height: 1.3; }
.product-info p { color: var(--text-dim); font-size: 0.82rem; line-height: 1.5; margin-bottom: 10px; flex: 1; }
.product-rating { font-size: 0.78rem; color: var(--gold); margin-bottom: 4px; }
.product-rating span { color: var(--text-muted); font-weight: 600; margin-left: 4px; font-size: 0.75rem; }
.product-meta { display: flex; justify-content: space-between; align-items: center; margin-top: auto; }
.product-moq { font-size: 0.75rem; color: var(--text-muted); }
.product-link { color: var(--accent-teal); text-decoration: none; font-weight: 600; font-size: 0.85rem; }
.product-link:hover { text-decoration: underline; }

/* === Why Us === */
.features-grid {
    max-width: var(--max-width); margin: 0 auto;
    display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px;
}
.feature-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px; transition: all 0.15s;
}
.feature-card:hover { border-color: var(--accent-teal); box-shadow: var(--shadow); }
.feature-icon { font-size: 1.8rem; margin-bottom: 12px; }
.feature-card h3 { font-size: 1rem; color: var(--text); margin-bottom: 6px; font-weight: 600; }
.feature-card p { color: var(--text-dim); font-size: 0.85rem; line-height: 1.6; }

/* === About === */
.about { background: var(--bg-alt); }
.about-grid {
    max-width: var(--max-width); margin: 0 auto;
    display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.about-text h2 { font-size: 1.8rem; color: var(--text); font-weight: 700; margin: 12px 0 20px; }
.about-text p { color: var(--text-dim); font-size: 0.92rem; line-height: 1.75; margin-bottom: 14px; }
.about-facts { display: flex; gap: 32px; margin-top: 24px; }
.fact-num { display: block; font-size: 1.6rem; font-weight: 700; color: var(--accent-teal); }
.fact-label { font-size: 0.8rem; color: var(--text-muted); }
.about-visual { display: flex; justify-content: center; }
.factory-gallery { width: 100%; display: flex; flex-direction: column; gap: 8px; }
.factory-photo {
    position: relative; overflow: hidden; border-radius: 8px;
    border: 1px solid var(--border); background: linear-gradient(135deg, #eff5f2, #e4ede8);
    aspect-ratio: 1/1; display: flex; align-items: center; justify-content: center;
}
.main-photo { aspect-ratio: 16/10; border-radius: var(--radius-lg); }
.factory-photo img { width: 100%; height: 100%; object-fit: cover; }
.factory-photo .photo-label {
    position: absolute; bottom: 0; left: 0; right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.55));
    color: #fff; padding: 18px 12px 8px; font-size: 0.72rem; font-weight: 600;
    opacity: 0; transition: opacity 0.3s;
}
.factory-photo:hover .photo-label { opacity: 1; }
.factory-photo.no-img .photo-fallback { display: flex; }
.factory-photo.no-img img { display: none; }
.factory-photo .photo-fallback { display: none; font-size: 2.5rem; color: var(--text-muted); opacity: 0.4; }
.factory-photo.no-img .photo-label { opacity: 1; background: transparent; color: var(--text-muted); }
.factory-photo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

/* === Shop === */
.shop { background: var(--bg); }
.shop-wrapper { max-width: var(--max-width); margin: 0 auto; }
.shop-product-select { display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 20px; }
.shop-product-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); overflow: hidden; display: flex; transition: all 0.2s;
}
.shop-product-card:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.shop-img {
    width: 120px; background: linear-gradient(135deg, #f5f8f6, #edf2f0);
    display: flex; align-items: center; justify-content: center; font-size: 2.2rem; flex-shrink: 0;
}
.shop-info { padding: 16px; flex: 1; }
.shop-info h4 { color: var(--text); font-size: 0.95rem; margin-bottom: 2px; font-weight: 600; }
.shop-info p { color: var(--text-dim); font-size: 0.78rem; margin-bottom: 6px; }
.shop-price { font-size: 1.2rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.shop-price span { font-size: 0.75rem; color: var(--text-muted); font-weight: 400; }
.shop-qty { display: flex; align-items: center; gap: 6px; margin-bottom: 10px; }
.qty-btn {
    width: 30px; height: 30px; background: var(--bg-alt); border: 1px solid var(--border);
    border-radius: 4px; color: var(--text); font-size: 1rem; cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.qty-btn:hover { border-color: var(--accent); }
.qty-input {
    width: 52px; height: 30px; text-align: center; background: var(--bg-alt); border: 1px solid var(--border);
    border-radius: 4px; color: var(--text); font-size: 0.85rem;
}
.qty-input:focus { outline: none; border-color: var(--accent); }
.paypal-btn-container { min-height: 36px; }
.shop-note { text-align: center; color: var(--text-muted); font-size: 0.82rem; margin-top: 28px; }
.shop-note a { color: var(--accent-teal); font-weight: 600; }

/* === Wholesale === */
.wholesale { background: var(--bg-alt); }
.inquiry-wrapper {
    max-width: 860px; margin: 0 auto;
    display: grid; grid-template-columns: 1fr 260px; gap: 36px;
}
.inquiry-form {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 36px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text); margin-bottom: 5px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 10px 14px; background: var(--bg-alt);
    border: 1.5px solid var(--border); border-radius: 6px;
    color: var(--text); font-size: 0.88rem; font-family: inherit;
    transition: border-color 0.15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(231,118,0,0.1);
}
.form-group textarea { resize: vertical; min-height: 90px; }
.btn-submit {
    width: 100%; padding: 14px; background: var(--accent); color: #fff;
    border: none; border-radius: 24px; font-size: 0.95rem; font-weight: 700;
    cursor: pointer; transition: background 0.15s;
}
.btn-submit:hover { background: var(--accent-hover); }
.form-note { text-align: center; color: var(--text-muted); font-size: 0.78rem; margin-top: 10px; }
.inquiry-contact { padding: 30px 0; }
.inquiry-contact h3 { color: var(--text); font-size: 1rem; font-weight: 600; margin-bottom: 16px; }
.contact-method {
    display: flex; align-items: center; gap: 10px; padding: 12px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 8px; margin-bottom: 8px; text-decoration: none;
    color: var(--text); font-size: 0.85rem; transition: border-color 0.15s;
}
.contact-method:hover { border-color: var(--accent); }
.cm-icon { font-size: 1.1rem; }

/* === Contact === */
.contact-grid {
    max-width: 900px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.contact-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 28px; text-align: center;
    transition: box-shadow 0.15s;
}
.contact-card:hover { box-shadow: var(--shadow); }
.cc-icon { font-size: 1.8rem; display: block; margin-bottom: 10px; }
.contact-card h3 { color: var(--text); font-size: 0.95rem; margin-bottom: 6px; font-weight: 600; }
.contact-card p { color: var(--text-dim); font-size: 0.85rem; }
.contact-card small { color: var(--text-muted); font-size: 0.75rem; }

/* === Footer === */
.footer { background: #1a1f1d; color: #c5ccc8; padding: 56px 24px 28px; }
.footer-inner { max-width: var(--max-width); margin: 0 auto; display: grid; grid-template-columns: 1.5fr 2fr; gap: 48px; margin-bottom: 36px; }
.footer-brand .logo { font-size: 1.3rem; font-weight: 700; color: #fff; }
.footer-brand p { color: #889591; font-size: 0.85rem; margin-top: 10px; max-width: 300px; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.footer-col h4 { color: #fff; font-size: 0.8rem; font-weight: 600; margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.03em; }
.footer-col a { display: block; color: #889591; font-size: 0.82rem; text-decoration: none; margin-bottom: 7px; transition: color 0.15s; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { max-width: var(--max-width); margin: 0 auto; padding-top: 20px; border-top: 1px solid #2a302e; text-align: center; }
.footer-bottom p { color: #6b7571; font-size: 0.78rem; }

/* === Alert === */
.alert {
    position: fixed; top: 100px; left: 50%; transform: translateX(-50%);
    padding: 12px 24px; border-radius: 8px; font-weight: 600;
    z-index: 2000; animation: slideDown 0.3s ease; box-shadow: var(--shadow-lg);
}
.alert-success { background: #edf7f0; color: #0d5540; border: 1px solid #b6dcc8; }
.alert-error { background: #fef3f3; color: #8b2e2e; border: 1px solid #f4c6c6; }
@keyframes slideDown { from { opacity: 0; transform: translateX(-50%) translateY(-16px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }

/* === Responsive === */
@media (max-width: 768px) {
    .nav-links, .btn-nav { display: none; }
    .nav-toggle { display: block; }
    .nav.open .nav-links {
        display: flex; flex-direction: column; position: absolute;
        top: 60px; left: 0; right: 0; background: var(--bg);
        padding: 16px; gap: 12px; border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow);
    }
    .trust-strip { gap: 20px; }
    .hero-stats { gap: 20px; }
    .about-grid { grid-template-columns: 1fr; gap: 32px; }
    .about-visual { order: -1; }
    .inquiry-wrapper { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    .form-row { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: 1fr 1fr; }
    .cat-grid { grid-template-columns: repeat(3, 1fr); }
    .shop-product-card { flex-direction: column; }
    .shop-img { width: 100%; height: 100px; }
    .shop-product-select { grid-template-columns: 1fr; }
}