:root {
    --color-primary: #8B7355;
    --color-primary-dark: #6B5344;
    --color-accent: #C4A77D;
    --color-bg: #FAF8F5;
    --color-bg-alt: #F5F0E8;
    --color-text: #3D3D3D;
    --color-text-light: #6B6B6B;
    --color-white: #FFFFFF;
    --color-border: #E8E2D9;
    --font-serif: 'Noto Serif TC', serif;
    --font-sans: 'Noto Sans TC', sans-serif;
    --shadow-sm: 0 2px 8px rgba(139, 115, 85, 0.08);
    --shadow-md: 0 8px 24px rgba(139, 115, 85, 0.12);
    --shadow-lg: 0 16px 48px rgba(139, 115, 85, 0.16);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(250, 248, 245, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo img {
    height: 28px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-menu a {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    position: relative;
    padding: 8px 0;
    transition: var(--transition);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--color-primary);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    font-size: 24px;
    color: var(--color-text);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 72px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
    top: -100px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: linear-gradient(45deg, var(--color-primary), var(--color-accent));
    bottom: 10%;
    left: -50px;
    animation: float 10s ease-in-out infinite reverse;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: var(--color-accent);
    top: 40%;
    right: 20%;
    animation: float 6s ease-in-out infinite 2s;
}

.wood-grain {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 50 Q25 45 50 50 T100 50' stroke='%238B7355' stroke-width='0.5' fill='none' opacity='0.05'/%3E%3C/svg%3E");
    background-size: 200px;
    opacity: 0.3;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(5deg); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-tag {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    border-radius: 30px;
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
}

.title-line {
    display: block;
}

.title-line.accent {
    color: var(--color-primary);
    position: relative;
}

.title-line.accent::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 0;
    width: 100%;
    height: 12px;
    background: var(--color-accent);
    opacity: 0.3;
    z-index: -1;
    transform: skewX(-5deg);
}

.hero-desc {
    font-size: 18px;
    color: var(--color-text-light);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 36px;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.hero-btn:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.hero-btn i {
    transition: var(--transition);
}

.hero-btn:hover i {
    transform: translateX(5px);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.product-showcase {
    position: relative;
    width: 100%;
    max-width: 450px;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.showcase-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    opacity: 0.3;
    animation: pulse 3s ease-in-out infinite;
}

.showcase-ring.ring-2 {
    width: 85%;
    height: 85%;
    animation-delay: 1.5s;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.05); opacity: 0.5; }
}

.showcase-img {
    width: 70%;
    height: 70%;
    object-fit: cover;
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.showcase-img:hover {
    transform: scale(1.05);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    animation: fadeInUp 1s ease-out 1s both;
}

.scroll-indicator span {
    font-size: 12px;
    color: var(--color-text-light);
    letter-spacing: 2px;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 600;
    color: var(--color-text);
}

.features {
    padding: 120px 0;
    background: var(--color-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.feature-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--color-bg);
    border-radius: 20px;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 50%;
    color: var(--color-white);
    font-size: 28px;
}

.feature-card h3 {
    font-family: var(--font-serif);
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--color-text);
}

.feature-card p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
}


.product-detail {
    padding: 120px 0;
    background: var(--color-bg);
}

.product-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.gallery-main {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    background: var(--color-white);
    box-shadow: var(--shadow-md);
}

.gallery-main img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-thumbs {
    display: flex;
    gap: 16px;
    margin-top: 20px;
}

.thumb {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    overflow: hidden;
    border: 2px solid transparent;
    transition: var(--transition);
    opacity: 0.6;
}

.thumb:hover,
.thumb.active {
    border-color: var(--color-primary);
    opacity: 1;
}

.thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    position: sticky;
    top: 100px;
}

.product-category {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: 12px;
    display: block;
}

.product-title {
    font-family: var(--font-serif);
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 20px;
}

.product-price {
    margin-bottom: 24px;
}

.price-current {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary);
}

.product-desc {
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--color-border);
}

.product-desc p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.8;
}

.product-specs {
    margin-bottom: 40px;
}

.product-specs li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    font-size: 14px;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
}

.product-specs li:last-child {
    border-bottom: none;
}

.product-specs i {
    width: 20px;
    color: var(--color-primary);
}

.btn-purchase {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 20px 40px;
    background: var(--color-primary);
    color: var(--color-white);
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.btn-purchase:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.craftsmanship {
    padding: 120px 0;
    background: var(--color-white);
}

.craft-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.craft-text .section-tag {
    display: block;
    text-align: left;
}

.craft-text .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.craft-text p {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.9;
    margin-bottom: 40px;
}

.craft-steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.step {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--color-bg);
    border-radius: 12px;
    transition: var(--transition);
}

.step:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-sm);
}

.step-num {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-accent);
}

.step-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
}

.craft-img-wrapper {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.craft-img-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary), transparent);
    opacity: 0.1;
    z-index: 1;
}

.craft-img-wrapper img {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
}

.cta {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: var(--color-accent);
    border-radius: 50%;
    top: -250px;
    right: -100px;
    opacity: 0.1;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta h2 {
    font-family: var(--font-serif);
    font-size: clamp(28px, 4vw, 42px);
    color: var(--color-white);
    margin-bottom: 16px;
}

.cta p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 40px;
    background: var(--color-white);
    color: var(--color-primary);
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.cta-btn i {
    transition: var(--transition);
}

.cta-btn:hover i {
    transform: translateX(5px);
}

.footer {
    background: var(--color-text);
    color: var(--color-white);
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo img {
    height: 24px;
    filter: brightness(0) invert(1);
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--color-white);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--color-white);
}

.footer-bottom {
    padding-top: 40px;
    text-align: center;
}

.copyright {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 12px;
}

.disclaimer {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}


@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }

    .hero-content {
        order: 2;
    }

    .hero-visual {
        order: 1;
    }

    .product-showcase {
        max-width: 350px;
        margin: 0 auto;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .product-wrapper {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .product-info {
        position: static;
    }

    .craft-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .craft-text {
        order: 2;
    }

    .craft-visual {
        order: 1;
    }

    .craft-text .section-tag,
    .craft-text .section-title {
        text-align: center;
    }

    .craft-text p {
        text-align: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .footer-links {
        justify-items: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--color-bg);
        flex-direction: column;
        padding: 24px;
        gap: 0;
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu li {
        border-bottom: 1px solid var(--color-border);
    }

    .nav-menu li:last-child {
        border-bottom: none;
    }

    .nav-menu a {
        display: block;
        padding: 16px 0;
    }

    .nav-toggle {
        display: block;
    }

    .hero {
        min-height: auto;
        padding: 120px 0 80px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-desc {
        font-size: 16px;
    }

    .scroll-indicator {
        display: none;
    }

    .features {
        padding: 80px 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .feature-card {
        padding: 32px 20px;
    }

    .product-detail {
        padding: 80px 0;
    }

    .product-title {
        font-size: 28px;
    }

    .price-current {
        font-size: 28px;
    }

    .gallery-thumbs {
        justify-content: center;
    }

    .thumb {
        width: 60px;
        height: 60px;
    }

    .craftsmanship {
        padding: 80px 0;
    }

    .craft-steps {
        grid-template-columns: 1fr;
    }

    .cta {
        padding: 80px 0;
    }

    .footer {
        padding: 60px 0 30px;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        height: 64px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-tag {
        font-size: 11px;
        padding: 6px 16px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-desc {
        font-size: 15px;
    }

    .hero-btn {
        padding: 16px 28px;
        font-size: 14px;
    }

    .product-showcase {
        max-width: 280px;
    }

    .section-title {
        font-size: 26px;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }

    .product-title {
        font-size: 24px;
    }

    .price-current {
        font-size: 24px;
    }

    .btn-purchase {
        padding: 16px 32px;
        font-size: 15px;
    }

    .cta h2 {
        font-size: 24px;
    }

    .cta p {
        font-size: 15px;
    }

    .cta-btn {
        padding: 16px 32px;
        font-size: 14px;
    }
}