/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    height: 50vh;
    min-height: 500px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #0a0a0a 100%);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('/public/images/banner/product_banner.webp') center/cover;
}

.hero-torch {
    position: absolute;
    top: 50%;
    left: 55%;
    transform: translate(-50%, -50%) rotate(-25deg);
    width: 250px;
    height: 5px;
    background: linear-gradient(90deg, #8b5a1e, #c47a2e, #e8923a);
    border-radius: 3px;
    z-index: 3;
}

.hero-torch::after {
    content: '';
    position: absolute;
    right: -5px;
    top: -2px;
    width: 10px;
    height: 10px;
    background: #e8923a;
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(232, 146, 58, 0.8);
}

.hero-stickers {
    position: absolute;
    right: 5%;
    top: 10%;
    width: 200px;
    height: 300px;
    opacity: 0.15;
    z-index: 1;
}

.sticker {
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.sticker:nth-child(1) {
    top: 0;
    left: 20px;
}

.sticker:nth-child(2) {
    top: 50px;
    left: 80px;
}

.sticker:nth-child(3) {
    top: 100px;
    left: 10px;
}

.sticker:nth-child(4) {
    top: 150px;
    left: 60px;
}

.sticker:nth-child(5) {
    top: 200px;
    left: 30px;
}

@keyframes glassGlow {

    0%,
    100% {
        transform: translate(-50%, -50%) scale(1);
        box-shadow: 0 0 80px rgba(232, 146, 58, 0.8), 0 0 150px rgba(232, 146, 58, 0.4);
    }

    50% {
        transform: translate(-50%, -50%) scale(1.05);
        box-shadow: 0 0 100px rgba(232, 146, 58, 0.9), 0 0 180px rgba(232, 146, 58, 0.5);
    }
}

@keyframes flameFlicker {
    0% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scaleX(1);
    }

    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scaleX(1.1);
    }
}

.hero-content {
    position: relative;
    z-index: 5;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 60px;
    width: 100%;
}

.hero-text {
    max-width: 550px;
}

.hero-text h1 {
    font-family: 'Times New Roman', Times, serif;
    font-size: 64px;
    color: var(--orange);
    line-height: 1.1;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease 0.3s forwards;
}

.hero-text p {
    font-size: 18px;
    max-width: 310px;
    color: var(--white);
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease 0.6s forwards;
}

/* ===== SHARED GRADIENT WRAPPER ===== */
.gradient-section-wrapper {
    background: linear-gradient(180deg, #252525 0%, #2b2b2b 100%);
}

/* ===== CRYSTAL CHANDELIER SECTION ===== */
.crystal-section {
    background: transparent;

}

.crystal-header {
    text-align: center;
    margin-bottom: 25px;
}

.crystal-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: 32px;
    color: var(--text-light);
    margin-bottom: 10px;
    padding-top: 32px;
}

.crystal-header .divider {
    width: 40px;
    height: 2px;
    background: var(--orange);
    margin: 15px auto;
}

.crystal-header p {
    color: #ffffff;
    font-size: 13px;
    max-width: 400px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===== INTRODUCTION SECTION ===== */
.intro-section-wrapper {
    background: transparent;

    margin-bottom: 60px;
}

.intro-section {
    background-color: #2c2c2c;
    padding: 60px;
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 50px;
    align-items: center;
}

.intro-text h3 {
    font-family: 'Roboto', sans-serif;
    font-size: 28px;
    color: var(--orange);
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 20px;
    line-height: 1.4;
    max-width: 100%;
    word-wrap: break-word;
    word-break: break-all;
    max-width: 19ch;
}

.intro-text p {
    color: #fff;
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 15px;
    max-width: 100%;
    word-wrap: break-word;
    text-indent: 2em;
}

.intro-image {
    position: relative;

    border: 10px solid var(--orange);
    width: 750px;
    height: 500px;
}

.intro-image-inner {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1a1a1a, #2a2a2a);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.chandelier-visual {
    position: relative;
    width: 80%;
    height: 100%;
}

.chandelier-visual .wire {
    position: absolute;
    top: 0;
    width: 1px;
    background: rgba(255, 255, 255, 0.3);
}

.chandelier-visual .wire:nth-child(1) {
    left: 15%;
    height: 30%;
}

.chandelier-visual .wire:nth-child(2) {
    left: 35%;
    height: 25%;
}

.chandelier-visual .wire:nth-child(3) {
    left: 50%;
    height: 20%;
}

.chandelier-visual .wire:nth-child(4) {
    left: 65%;
    height: 25%;
}

.chandelier-visual .wire:nth-child(5) {
    left: 85%;
    height: 30%;
}

.chandelier-visual .bulb {
    position: absolute;
    width: 60px;
    height: 25px;
    background: linear-gradient(90deg, #f5c563, #e8923a, #c47a2e);
    border-radius: 12px;
    box-shadow: 0 0 15px rgba(232, 146, 58, 0.5), 0 0 30px rgba(232, 146, 58, 0.2);
}

.chandelier-visual .bulb::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 10%;
    width: 50%;
    height: 50%;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.4) 0%, transparent 70%);
    border-radius: 50%;
}

.chandelier-visual .bulb:nth-child(6) {
    bottom: 45%;
    left: 10%;
}

.chandelier-visual .bulb:nth-child(7) {
    bottom: 48%;
    left: 28%;
}

.chandelier-visual .bulb:nth-child(8) {
    bottom: 50%;
    left: 42%;
}

.chandelier-visual .bulb:nth-child(9) {
    bottom: 48%;
    left: 58%;
}

.chandelier-visual .bulb:nth-child(10) {
    bottom: 45%;
    left: 72%;
}

.chandelier-visual .connector {
    position: absolute;
    width: 15px;
    height: 15px;
    background: #333;
    border-radius: 50%;
    border: 2px solid #555;
}

.chandelier-visual .connector:nth-child(11) {
    bottom: 42%;
    left: 22%;
}

.chandelier-visual .connector:nth-child(12) {
    bottom: 45%;
    left: 40%;
}

.chandelier-visual .connector:nth-child(13) {
    bottom: 47%;
    left: 55%;
}

.chandelier-visual .connector:nth-child(14) {
    bottom: 45%;
    left: 70%;
}

.chandelier-visual .glow {
    position: absolute;
    bottom: 30%;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 40px;
    background: radial-gradient(ellipse, rgba(232, 146, 58, 0.3) 0%, transparent 70%);
    animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {

    0%,
    100% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }
}

/* ===== PRODUCT GRID ===== */
.product-grid {
    background: transparent;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 0 80px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.product-card {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
}

.product-image {
    width: 320px;
    height: 350px;
    background: linear-gradient(135deg, #1a1a1a, #2a2a2a);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

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

.product-image .lamp-icon {
    font-size: 50px;
    color: var(--orange);
    opacity: 0.3;
}

.product-card:hover .product-image .lamp-icon {
    opacity: 0.5;
}

.product-card .product-info {
    width: 320px;
    padding: 15px;
    text-align: center;
    background: var(--card-bg);
    transition: all 0.3s ease;
    justify-items: center;
}

.product-card.highlighted .product-info {
    background: var(--orange);
}

.product-card .product-info p {
    width: 320px;
    font-size: 20px;
    color: var(--text-muted);
    line-height: 1.6;
    text-align: center;
    max-width: 20ch;
}

.product-card.highlighted .product-info p {
    color: white;
}

.product-card:hover .product-info {
    background: var(--orange);
}

.product-card:hover .product-info p {
    color: white;
}

/* Product image variations */
.product-image.type-1 {
    background: linear-gradient(135deg, #0a0a1a, #1a1a2a);
}

.product-image.type-2 {
    background: linear-gradient(135deg, #1a1a1a, #2a2a2a);
}

.product-image.type-3 {
    background: linear-gradient(135deg, #1a1a2a, #2a2a3a);
}

.product-image.type-4 {
    background: linear-gradient(135deg, #2a2a2a, #3a3a3a);
}

.product-image.type-5 {
    background: linear-gradient(135deg, #1a1a1a, #2a2a2a);
}

.product-image.type-6 {
    background: linear-gradient(135deg, #1a1a2a, #2a2a3a);
}

.product-image.type-7 {
    background: linear-gradient(135deg, #1a1a1a, #2a2a2a);
}

.product-image.type-8 {
    background: linear-gradient(135deg, #2a2a2a, #3a3a3a);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
    .intro-section {
        grid-template-columns: 1fr;
        padding: 40px 20px;
    }

    .intro-image {
        width: 100%;
        max-width: 750px;
        height: auto;
        aspect-ratio: 750 / 500;
        margin: 0 auto;
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 0 20px 60px;
    }

    .product-image {
        width: 100%;
        height: auto;
        aspect-ratio: 320 / 350;
    }

    .product-card .product-info {
        width: 100%;
    }

    .product-card .product-info p {
        width: 100%;
        max-width: none;
    }
}

@media (max-width: 768px) {
    body {
        min-width: 100vw;
        overflow-x: hidden;
    }

    html,
    body {
        overflow-x: hidden;
        min-width: 100vw;
        width: 100%;
        max-width: 100vw;
    }

    * {
        max-width: 100vw;
        box-sizing: border-box;
    }

    .gradient-section-wrapper {
        width: 100%;
    }

    .hero {
        height: 200px;
        min-height: 200px;
    }

    .hero-content {
        position: relative;
        width: 100%;
        padding: 80px 20px 0;
        align-items: flex-start;
        justify-content: flex-start;
    }

    .hero-bg {
        position: absolute;

        left: 0;
        width: 100%;

    }

    .hero-text h1 {
        font-size: 28px;
    }

    .hero-text p {
        font-size: 12px;
        max-width: 80%;
    }

    .hero-content {
        padding: 0 15px;
    }

    .crystal-section {
        padding: 50px 15px 30px;
        padding-bottom: 0px;
    }

    .intro-section {
        padding: 30px 15px;
        grid-template-columns: 1fr;
    }

    .intro-text {
        text-align: center;
        justify-content: center;
        justify-items: center;
    }

    .intro-text h3 {
        font-size: 22px;
    }

    .intro-text p {
        font-size: 14px;
    }

    .intro-image {
        width: 100%;
        height: auto;
        aspect-ratio: 3 / 2;
        border-width: 6px;
        margin-top: -40px;
    }

    .intro-image-inner {
        height: auto;
        aspect-ratio: 3 / 2;
    }

    .intro-section-wrapper {
        padding: 30px 0;
        padding-bottom: 0;
        margin-bottom: 0;
    }

    .crystal-header {
        margin-top: -60px;
        margin-bottom: 0px;
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
        padding: 0 15px 40px;
    }

    .product-image {
        width: 100%;
        height: auto;
        aspect-ratio: 320 / 350;
    }

    .product-card .product-info {
        width: 100%;
        padding: 12px;
    }

    .product-card .product-info p {
        width: 100%;
        font-size: 14px;
    }



    #btt {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 50px;
        height: 50px;
        padding: 5px;
    }



    .mobile-back-to-top {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 100%;
        height: 60px;
        padding: 5px;
        margin-top: 10px;
        justify-items: center;
    }

    .mobile-back-to-top .back-to-top-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: var(--orange);
        border-radius: 50%;
        transition: all 0.3s ease;
    }

    .mobile-back-to-top .back-to-top-btn img {
        transform: rotate(-90deg);
    }

    .mobile-back-to-top h5 {
        font-size: 10px;
        color: white;
        margin-top: 4px;
        font-weight: normal;
    }

    .footer-social {
        justify-content: center;
    }

    /* Container max-width for mobile */
    .nav-container,
    .footer-row,
    .footer-contact,
    .footer-row-2 {
        min-width: unset;
        max-width: 100vw;
        overflow: hidden;
    }
}



/* ===== FADE-IN ANIMATIONS ===== */
.fade-in {
    min-height: 80px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
    padding-top: 20px;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.8s ease;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.8s ease;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.douhao {
    background: url("/public/images/title_douhao.png") no-repeat center;
}



.qr-code {
    width: 100px;
    height: 100px;
    background: white;
    border-radius: 4px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.qr-code::before {
    content: '';
    width: 70px;
    height: 70px;
    background:
        linear-gradient(90deg, #000 2px, transparent 2px) 0 0 / 10px 10px,
        linear-gradient(0deg, #000 2px, transparent 2px) 0 0 / 10px 10px;
    opacity: 0.8;
}

.qr-code::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--orange);
    border-radius: 2px;
}


/* ===== BACK TO TOP BUTTONS ===== */
#btt {
    display: flex;
    flex-direction: column;
}



.mobile-back-to-top {
    display: none;
}

/* ===== PRODUCT DETAIL PAGE STYLES ===== */

/* Hero Section for Product Detail */
.hero {
    position: relative;

    overflow: hidden;

}

.hero-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #3a2a1a 0%, #2a1a0a 50%, #1a1a1a 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-chandelier {
    position: relative;
    width: 500px;
    height: 400px;
}

.chandelier-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 80px;
    border: 8px solid #8b7355;
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(139, 115, 85, 0.3), inset 0 0 20px rgba(139, 115, 85, 0.2);
}

.chandelier-ring::before {
    content: '';
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 40px;
    background: linear-gradient(to bottom, #8b7355, #6b5335);
    border-radius: 5px 5px 0 0;
}

.chandelier-ring::after {
    content: '';
    position: absolute;
    top: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 40px;
    background: linear-gradient(to bottom, #6b5335, #8b7355);
    border-radius: 3px;
}

.crystal-bar {
    position: absolute;
    width: 20px;
    height: 100px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(200, 200, 200, 0.4), rgba(255, 255, 255, 0.6));
    border-radius: 3px;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
}

.crystal-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(0deg,
            transparent,
            transparent 8px,
            rgba(255, 255, 255, 0.3) 8px,
            rgba(255, 255, 255, 0.3) 10px);
    border-radius: 3px;
}

.crystal-bar:nth-child(1) {
    top: 30%;
    left: 15%;
    transform: rotate(-15deg);
}

.crystal-bar:nth-child(2) {
    top: 25%;
    left: 30%;
    transform: rotate(-8deg);
}

.crystal-bar:nth-child(3) {
    top: 20%;
    left: 45%;
    transform: rotate(0deg);
}

.crystal-bar:nth-child(4) {
    top: 25%;
    left: 60%;
    transform: rotate(8deg);
}

.crystal-bar:nth-child(5) {
    top: 30%;
    left: 75%;
    transform: rotate(15deg);
}

.crystal-bar:nth-child(6) {
    top: 55%;
    left: 20%;
    transform: rotate(-12deg);
}

.crystal-bar:nth-child(7) {
    top: 50%;
    left: 35%;
    transform: rotate(-5deg);
}

.crystal-bar:nth-child(8) {
    top: 48%;
    left: 50%;
    transform: rotate(0deg);
}

.crystal-bar:nth-child(9) {
    top: 50%;
    left: 65%;
    transform: rotate(5deg);
}

.crystal-bar:nth-child(10) {
    top: 55%;
    left: 80%;
    transform: rotate(12deg);
}

.crystal-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 300px;
    background: radial-gradient(ellipse, rgba(255, 220, 150, 0.15) 0%, transparent 70%);
    animation: crystalGlowPulse 3s ease-in-out infinite;
}

@keyframes crystalGlowPulse {

    0%,
    100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }

    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.hero-card {
    position: absolute;
    bottom: 15%;
    left: 10%;
    background: var(--orange);
    padding: 40px;
    max-width: 350px;
    z-index: 10;
}

.hero-card h2 {
    font-family: 'Playfair Display', serif;
    font-size: 28px;
    color: white;
    margin-bottom: 15px;
}

.hero-card .divider {
    width: 40px;
    height: 2px;
    background: white;
    margin-bottom: 15px;
}

.hero-card p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
}

.hero-frame {
    position: absolute;
    bottom: 15%;
    right: 8%;
    width: 150px;
    height: 180px;
    border: 3px solid #8b7355;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-frame-inner {
    width: 120px;
    height: 150px;
    background: linear-gradient(135deg, #2a2a3a, #1a1a2a);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-frame-inner i {
    font-size: 50px;
    color: #4a4a5a;
}

/* Light Effect Section */
.light-effect-section {
    background: var(--darker-bg);
    padding: 60px 0;
}

.light-effect-header {
    text-align: center;
    margin-bottom: 40px;
}

.light-effect-header h3 {
    font-family: 'Playfair Display', serif;
    font-size: 24px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.light-effect-header p {
    color: var(--text-muted);
    font-size: 12px;
    max-width: 400px;
    margin: 0 auto;
    line-height: 1.6;
}

.light-effect-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 60px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.light-effect-card {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.light-effect-card:hover {
    transform: translateY(-5px);
}

.light-effect-card.highlighted {
    border-bottom: 4px solid var(--orange);
}

.light-effect-image {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, #f0f0f0, #e0e0e0);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.light-effect-image .mini-chandelier {
    position: relative;
    width: 120px;
    height: 100px;
}

.mini-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 25px;
    border: 4px solid #8b7355;
    border-radius: 50%;
}

.mini-ring::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 20px;
    background: #8b7355;
    border-radius: 3px 3px 0 0;
}

.mini-crystal {
    position: absolute;
    width: 8px;
    height: 40px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(200, 200, 200, 0.5));
    border-radius: 2px;
}

.mini-crystal:nth-child(2) {
    top: 20%;
    left: 10%;
    transform: rotate(-10deg);
}

.mini-crystal:nth-child(3) {
    top: 15%;
    left: 30%;
    transform: rotate(-5deg);
}

.mini-crystal:nth-child(4) {
    top: 12%;
    left: 50%;
    transform: rotate(0deg);
}

.mini-crystal:nth-child(5) {
    top: 15%;
    left: 70%;
    transform: rotate(5deg);
}

.mini-crystal:nth-child(6) {
    top: 20%;
    left: 90%;
    transform: rotate(10deg);
}

.mini-crystal:nth-child(7) {
    top: 50%;
    left: 20%;
    transform: rotate(-8deg);
}

.mini-crystal:nth-child(8) {
    top: 48%;
    left: 40%;
    transform: rotate(-3deg);
}

.mini-crystal:nth-child(9) {
    top: 48%;
    left: 60%;
    transform: rotate(3deg);
}

.mini-crystal:nth-child(10) {
    top: 50%;
    left: 80%;
    transform: rotate(8deg);
}

.light-effect-card.on .mini-crystal {
    box-shadow: 0 0 10px rgba(255, 220, 150, 0.8);
    background: linear-gradient(180deg, rgba(255, 240, 200, 1), rgba(255, 220, 150, 0.8));
}

.light-effect-card.off .mini-crystal {
    background: linear-gradient(180deg, rgba(200, 200, 200, 0.6), rgba(150, 150, 150, 0.3));
}

.light-effect-label {
    padding: 15px;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    background: var(--card-bg);
}

.light-effect-card.highlighted .light-effect-label {
    background: var(--orange);
    color: white;
}

/* Feature Sections */
.feature-section {
    background: var(--section-bg);
    padding: 40px 60px;
    max-width: 1200px;
    margin: 30px auto;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: center;
}

.feature-section.reverse {
    grid-template-columns: 1fr 1.2fr;
}

.feature-image {
    width: 100%;
    aspect-ratio: 16/10;
    background: linear-gradient(135deg, #f5f5f5, #e8e8e8);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.feature-image .detail-visual {
    position: relative;
    width: 80%;
    height: 80%;
}

.feature-image .detail-visual .metal-part {
    position: absolute;
    background: linear-gradient(135deg, #c4a882, #8b7355, #c4a882);
    border-radius: 5px;
}

.feature-image .detail-visual .metal-part:nth-child(1) {
    top: 10%;
    left: 30%;
    width: 40%;
    height: 20%;
    border-radius: 50%;
}

.feature-image .detail-visual .metal-part:nth-child(2) {
    top: 30%;
    left: 35%;
    width: 30%;
    height: 60%;
    transform: rotate(-15deg);
}

.feature-image .detail-visual .metal-part:nth-child(3) {
    top: 30%;
    left: 55%;
    width: 25%;
    height: 55%;
    transform: rotate(10deg);
}

.feature-image .detail-visual .metal-part:nth-child(4) {
    top: 25%;
    left: 45%;
    width: 15%;
    height: 50%;
    transform: rotate(-5deg);
}

.feature-image .detail-visual .crystal-detail {
    position: absolute;
    width: 15px;
    height: 80px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(200, 200, 200, 0.5));
    border-radius: 3px;
    box-shadow: 0 0 10px rgba(255, 220, 150, 0.3);
}

.feature-image .detail-visual .crystal-detail:nth-child(5) {
    top: 50%;
    left: 20%;
    transform: rotate(-10deg);
}

.feature-image .detail-visual .crystal-detail:nth-child(6) {
    top: 45%;
    left: 40%;
    transform: rotate(-3deg);
}

.feature-image .detail-visual .crystal-detail:nth-child(7) {
    top: 42%;
    left: 60%;
    transform: rotate(5deg);
}

.feature-image .detail-visual .crystal-detail:nth-child(8) {
    top: 48%;
    left: 80%;
    transform: rotate(12deg);
}

.feature-number {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: var(--beige);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Playfair Display', serif;
    font-size: 28px;
    color: white;
}

.feature-text {
    padding: 20px 0;
}

.feature-text h3 {
    font-family: 'Playfair Display', serif;
    font-size: 22px;
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.4;
}

.feature-text p {
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.8;
}

/* Crystal Lamp Showcase */
.showcase-section {
    background: var(--darker-bg);
    padding: 60px 0;
}

.showcase-header {
    text-align: center;
    margin-bottom: 40px;
}

.showcase-header h3 {
    font-family: 'Playfair Display', serif;
    font-size: 24px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.showcase-header p {
    color: var(--text-muted);
    font-size: 12px;
    max-width: 400px;
    margin: 0 auto;
    line-height: 1.6;
}

.showcase-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 60px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.showcase-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.showcase-item:hover {
    transform: scale(1.02);
}

.showcase-image {
    width: 100%;
    aspect-ratio: 4/3;
    position: relative;
    overflow: hidden;
}

.showcase-image-bg {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.showcase-image-bg .room-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.showcase-image-bg .room-bg.green {
    background: linear-gradient(135deg, #1a2a1a, #2a3a2a);
}

.showcase-image-bg .room-bg.gray {
    background: linear-gradient(135deg, #2a2a2a, #3a3a3a);
}

.showcase-image-bg .room-bg.blue {
    background: linear-gradient(135deg, #1a1a2a, #2a2a3a);
}

.showcase-image-bg .room-bg.brown {
    background: linear-gradient(135deg, #2a1a1a, #3a2a2a);
}

.showcase-chandelier {
    position: relative;
    z-index: 2;
}

.showcase-chandelier .sc-ring {
    width: 150px;
    height: 40px;
    border: 5px solid #8b7355;
    border-radius: 50%;
    position: relative;
}

.showcase-chandelier .sc-ring::before {
    content: '';
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 25px;
    background: #8b7355;
    border-radius: 3px 3px 0 0;
}

.showcase-chandelier .sc-crystal {
    position: absolute;
    width: 12px;
    height: 60px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(200, 200, 200, 0.5));
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(255, 220, 150, 0.5);
}

.showcase-chandelier .sc-crystal:nth-child(2) {
    top: 15%;
    left: 5%;
    transform: rotate(-12deg);
}

.showcase-chandelier .sc-crystal:nth-child(3) {
    top: 10%;
    left: 25%;
    transform: rotate(-6deg);
}

.showcase-chandelier .sc-crystal:nth-child(4) {
    top: 8%;
    left: 45%;
    transform: rotate(0deg);
}

.showcase-chandelier .sc-crystal:nth-child(5) {
    top: 10%;
    left: 65%;
    transform: rotate(6deg);
}

.showcase-chandelier .sc-crystal:nth-child(6) {
    top: 15%;
    left: 85%;
    transform: rotate(12deg);
}

.showcase-chandelier .sc-crystal:nth-child(7) {
    top: 45%;
    left: 15%;
    transform: rotate(-8deg);
}

.showcase-chandelier .sc-crystal:nth-child(8) {
    top: 42%;
    left: 35%;
    transform: rotate(-3deg);
}

.showcase-chandelier .sc-crystal:nth-child(9) {
    top: 42%;
    left: 55%;
    transform: rotate(3deg);
}

.showcase-chandelier .sc-crystal:nth-child(10) {
    top: 45%;
    left: 75%;
    transform: rotate(8deg);
}

.showcase-logo {
    position: absolute;
    top: 15px;
    left: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 5;
}

.showcase-logo .logo-circle {
    width: 30px;
    height: 30px;
    background: var(--orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: white;
}

.showcase-logo span {
    font-size: 12px;
    color: white;
    font-weight: 500;
}

.showcase-logo .chinese {
    font-size: 10px;
    color: rgba(255, 255, 255, 0.7);
}

/* Room decorations */
.room-decoration {
    position: absolute;
    z-index: 1;
}

.room-decoration.picture {
    width: 80px;
    height: 100px;
    border: 2px solid #8b7355;
    background: linear-gradient(135deg, #2a2a3a, #1a1a2a);
    display: flex;
    align-items: center;
    justify-content: center;
}

.room-decoration.picture i {
    font-size: 30px;
    color: #4a4a5a;
}

.room-decoration.curtain {
    width: 60px;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
}

.room-decoration.wall-art {
    width: 120px;
    height: 40px;
    display: flex;
    gap: 5px;
    justify-content: center;
    align-items: center;
}

.room-decoration.wall-art span {
    width: 15px;
    height: 15px;
    background: #8b7355;
    transform: rotate(45deg);
}

.room-decoration.plant {
    width: 40px;
    height: 60px;
    position: relative;
}

.room-decoration.plant::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 30px;
    background: #4a6a4a;
    border-radius: 5px 5px 0 0;
}

.room-decoration.plant::after {
    content: '';
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 20px;
    background: #3a5a3a;
    border-radius: 50%;
}

/* Product Detail Responsive */
@media (max-width: 1200px) {
    .light-effect-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-section,
    .feature-section.reverse {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-card {
        position: relative;
        bottom: auto;
        left: auto;
        margin: 20px;
    }

    .hero-frame {
        display: none;
    }

    .light-effect-grid {
        grid-template-columns: 1fr;
        padding: 0 20px;
    }

    .showcase-grid {
        grid-template-columns: 1fr;
        padding: 0 20px;
    }

    .feature-section {
        padding: 30px 20px;
        margin: 20px;
    }

    .mobile-back-to-top {
        display: block;
    }
}