/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: #2c2c2c;
    line-height: 1.6;
    background: #fff;
}
a { text-decoration: none; color: inherit; transition: color 0.3s; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== Colors ===== */
:root {
    --primary: #8B4513;
    --primary-dark: #6B3410;
    --primary-light: #A0522D;
    --accent: #D4A574;
    --gold: #C8A96E;
    --dark: #1a1a1a;
    --gray: #666;
    --light-gray: #f5f0eb;
    --cream: #faf6f1;
    --white: #ffffff;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 40px rgba(0,0,0,0.15);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(139,69,19,0.1);
    transition: all 0.3s ease;
}
.navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}
.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold);
    font-size: 1.2rem;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--dark);
    position: relative;
    padding: 4px 0;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s ease;
}
.nav-links a:hover::after { width: 100%; }
.nav-links a:hover { color: var(--primary); }
.nav-links a.active { color: var(--primary); font-weight: 700; }
.nav-links a.active::after { width: 100%; }
.nav-cta {
    background: var(--primary) !important;
    color: var(--white) !important;
    padding: 10px 24px !important;
    border-radius: 50px;
    font-weight: 600 !important;
    transition: all 0.3s ease !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover {
    background: var(--primary-dark) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(139,69,19,0.3);
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}
.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    transition: all 0.3s;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26,26,26,0.7) 0%, rgba(139,69,19,0.4) 100%);
}
.hero-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    max-width: 650px;
    padding-top: 72px;
}
.hero-badge {
    display: inline-block;
    background: rgba(200,169,110,0.2);
    border: 1px solid var(--gold);
    color: var(--gold);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 24px;
    backdrop-filter: blur(5px);
}
.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero h1 span { color: var(--gold); }
.hero p {
    font-size: 1.15rem;
    line-height: 1.8;
    opacity: 0.9;
    margin-bottom: 36px;
    max-width: 520px;
}
.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}
.btn-primary {
    background: var(--gold);
    color: var(--dark);
}
.btn-primary:hover {
    background: #d4b87a;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(200,169,110,0.4);
}
.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.5);
}
.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
}
.btn-cta {
    background: var(--gold);
    color: var(--dark);
    padding: 16px 40px;
    font-size: 1.05rem;
}
.btn-cta:hover {
    background: #d4b87a;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(200,169,110,0.4);
}

/* ===== Stats Bar ===== */
.stats-bar {
    background: var(--primary);
    padding: 30px 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
    color: var(--white);
}
.stat-item h3 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--gold);
}
.stat-item p {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 4px;
}

/* ===== Section Common ===== */
.section { padding: 100px 0; }
.section-header {
    text-align: center;
    margin-bottom: 60px;
}
.section-tag {
    display: inline-block;
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}
.section-header p {
    font-size: 1.05rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Products Section ===== */
.products { background: var(--cream); }
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.product-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.4s ease;
    position: relative;
}
.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}
.product-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--primary);
    color: var(--white);
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 2;
}
.product-img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.product-card:hover .product-img { transform: scale(1.05); }
.product-img-wrap { overflow: hidden; }
.product-info { padding: 24px; }
.product-info h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--dark);
}
.product-info .product-desc {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.6;
}
.product-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.product-price {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary);
}
.product-price small {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--gray);
    text-decoration: line-through;
    margin-left: 8px;
}
.btn-cart {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}
.btn-cart:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

/* ===== Features Section ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}
.feature-card {
    text-align: center;
    padding: 40px 24px;
    border-radius: 16px;
    background: var(--white);
    border: 1px solid rgba(139,69,19,0.08);
    transition: all 0.3s;
}
.feature-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}
.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: var(--cream);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}
.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}
.feature-card p {
    font-size: 0.9rem;
    color: var(--gray);
    line-height: 1.6;
}

/* ===== Story Section ===== */
.story { background: var(--cream); }
.story-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.story-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
}
.story-image img {
    width: 100%;
    height: 450px;
    object-fit: cover;
}
.story-content h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
    line-height: 1.3;
}
.story-content p {
    font-size: 1rem;
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.8;
}
.story-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 30px;
}
.highlight-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--white);
    border-radius: 12px;
}
.highlight-icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold);
    font-size: 1rem;
    flex-shrink: 0;
}
.highlight-item span {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark);
}

/* ===== Testimonials ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.testimonial-card {
    background: var(--white);
    padding: 32px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}
.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.stars {
    color: var(--gold);
    font-size: 1.1rem;
    margin-bottom: 16px;
}
.testimonial-card p {
    font-size: 0.95rem;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 20px;
    font-style: italic;
}
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}
.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1.1rem;
}
.author-info h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--dark);
}
.author-info span {
    font-size: 0.8rem;
    color: var(--gray);
}

/* ===== CTA Section ===== */
.cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    text-align: center;
    color: var(--white);
    padding: 80px 0;
}
.cta h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}
.cta p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 36px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 30px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand .logo {
    color: var(--white);
    margin-bottom: 16px;
}
.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: 20px;
}
.social-links {
    display: flex;
    gap: 12px;
}
.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    font-size: 0.9rem;
}
.social-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}
.footer-col h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul li a {
    font-size: 0.9rem;
    transition: color 0.3s;
}
.footer-col ul li a:hover { color: var(--gold); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
}
.footer-bottom a:hover { color: var(--gold); }

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(139,69,19,0.3);
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}
.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Page Header (for sub-pages) ===== */
.page-header {
    position: relative;
    height: 400px;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 72px;
}
.page-header-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.page-header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26,26,26,0.6) 0%, rgba(139,69,19,0.5) 100%);
}
.page-header-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    text-align: center;
}
.page-header-content h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 12px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.page-header-content p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero h1 { font-size: 2.8rem; }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .page-header-content h1 { font-size: 2.4rem; }
}
@media (max-width: 768px) {
    .menu-toggle { display: flex; }
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        transform: translateY(-100%);
        opacity: 0;
        transition: all 0.3s;
        pointer-events: none;
    }
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    .hero { min-height: 500px; }
    .hero h1 { font-size: 2rem; }
    .hero p { font-size: 1rem; }
    .hero-buttons { flex-direction: column; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .products-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .story-grid { grid-template-columns: 1fr; gap: 30px; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .story-highlights { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
    .section { padding: 60px 0; }
    .section-header h2 { font-size: 1.8rem; }
    .cta h2 { font-size: 1.8rem; }
    .page-header { height: 300px; }
    .page-header-content h1 { font-size: 1.8rem; }
}