/* Yifang Electronics Website Styles */

:root {
    --color-red: #e60012;
    --color-yellow: #ffcc00;
    --color-dark: #222222;
    --color-hero-overlay: #0b1c3f;
    --color-text: #333333;
    --color-light-bg: #f9f9f9;
    --color-white: #ffffff;
    --color-gray: #666666;
    --color-light-gray: #dddddd;
    --font-main: 'Open Sans', Arial, sans-serif;
}

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

html {
    overflow-x: hidden;
}

body {
    font-family: var(--font-main);
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn:active {
    transform: scale(0.95);
    transition-duration: 0.1s;
}

.btn-primary {
    background-color: var(--color-red);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: #c40010;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(206, 0, 26, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-red);
    border: 1px solid var(--color-red);
}

.btn-outline:hover {
    background-color: var(--color-red);
    color: var(--color-white);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(206, 0, 26, 0.2);
}

/* Header */
.site-header {
    position: relative;
    z-index: 1000;
}

.top-bar {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-light-gray);
    padding: 10px 0;
}

.top-bar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
    display: inline-flex;
    align-items: center;
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.logo-pcb {
    color: var(--color-red);
}

.logo-gogo {
    color: var(--color-dark);
}

.tagline {
    font-size: 12px;
    color: var(--color-gray);
    border-left: 1px solid var(--color-light-gray);
    padding-left: 12px;
}

.top-links {
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 13px;
    color: var(--color-gray);
}

.top-link:hover {
    color: var(--color-red);
}

.language-selector {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.lang-flag {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    object-fit: cover;
    transform: scale(1.07);
}

/* Main Nav */
.main-nav {
    background-color: var(--color-dark);
}

.nav-inner {
    display: flex;
    align-items: center;
    min-height: 48px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: auto;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    margin: 5px 0;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    display: block;
    padding: 12px 16px;
    color: var(--color-white);
    font-size: 14px;
    font-weight: 600;
    border-radius: 0;
    position: relative;
    transition: color 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-red);
    transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1), left 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
    left: 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-red);
}

/* Hero Slider */
.hero-section {
    position: relative;
    min-height: 520px;
    background: transparent;
    color: var(--color-white);
    overflow: hidden;
}

.hero-section::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.35), rgba(0, 0, 0, 0.55));
    pointer-events: none;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
    opacity: 0.35;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.07);
}

/* Hero Banner Slider */
.hero-slider {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-slide {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

.hero-inner {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 160px 0 80px;
    gap: 40px;
}

.hero-content {
    max-width: 700px;
    text-align: center;
}

.hero-title {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
}

.hero-title .line-yellow {
    color: var(--color-yellow);
    display: block;
}

.hero-title .line-white {
    color: var(--color-white);
    display: block;
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 28px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.hero-features {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.hero-badge {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: var(--color-yellow);
    color: var(--color-dark);
    font-weight: 700;
    padding: 14px 22px;
    border-radius: 30px;
    text-align: center;
    line-height: 1.1;
    min-width: 110px;
}

.hero-badge .badge-no {
    font-size: 36px;
    font-weight: 800;
    display: block;
}

.hero-badge .badge-text {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
}

.hero-list {
    margin-bottom: 0;
}

.hero-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    font-size: 16px;
}

.hero-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background-color: var(--color-yellow);
    border-radius: 50%;
}

.btn-order {
    background-color: var(--color-white);
    color: var(--color-hero-overlay);
    font-weight: 700;
    padding: 14px 36px;
}

.btn-order:hover {
    background-color: var(--color-yellow);
    color: var(--color-dark);
}

/* Mini Quote Bar */
.mini-quote {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 14px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 24px;
    max-width: 520px;
}

.mini-quote select,
.mini-quote input {
    padding: 10px 12px;
    border: 1px solid var(--color-light-gray);
    border-radius: 4px;
    font-size: 14px;
    color: var(--color-text);
    background-color: var(--color-white);
}

.mini-quote select {
    min-width: 110px;
}

.mini-quote input {
    flex: 1;
    min-width: 120px;
}

.btn-quote-mini {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: var(--color-red);
    color: var(--color-white);
    padding: 10px 18px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
}

.btn-quote-mini:hover {
    background-color: #c40010;
}

.calculator-icon {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* Hero Boards */
.hero-boards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    max-width: 480px;
}

.board-item {
    position: relative;
    text-align: center;
    transition: transform 0.3s ease;
}

.board-item:nth-child(1) { transform: rotate(-6deg); }
.board-item:nth-child(2) { transform: rotate(3deg); }
.board-item:nth-child(3) { transform: rotate(-4deg); }
.board-item:nth-child(4) { transform: rotate(5deg); }
.board-item:nth-child(5) { transform: rotate(-3deg); }
.board-item:nth-child(6) { transform: rotate(4deg); }

.board-item img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
    transform: scale(1.07);
}

.board-panda {
    width: 34px;
    height: 34px;
    position: absolute;
    bottom: -10px;
    right: -6px;
    border-radius: 50%;
    border: 2px solid var(--color-white);
    overflow: hidden;
    z-index: 3;
    background-color: var(--color-white);
}

.board-panda img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.07);
}

.slider-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
}

.slider-dot.active {
    background-color: var(--color-red);
}

/* Video Section */
.video-section {
    padding: 60px 0;
    background-color: var(--color-white);
}

.video-intro-layout {
    display: grid;
    grid-template-columns: 5fr 6fr;
    gap: 48px;
    align-items: center;
}

.video-intro-text h2 {
    margin-bottom: 20px;
}

.video-intro-text p {
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 16px;
    font-size: 15px;
}

.video-intro-text p strong {
    color: var(--color-dark);
}

.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

@media (max-width: 768px) {
    .video-intro-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

/* Why Choose Yifang Section */
.why-choose-section {
    position: relative;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    color: white;
    padding: 35px 0;
    overflow: hidden;
}

.why-choose-overlay {
    position: absolute;
    inset: 0;
    background: url('https://tc.leapzi.cn/view.php/3eced5325b5cfd9159cf6b101e2ce7fa.png') center/cover no-repeat;
    opacity: 0.15;
    z-index: 1;
}

.why-choose-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.why-choose-title {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
    color: white;
}

.why-choose-desc {
    font-size: 14px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    max-width: 900px;
    margin: 0 auto 30px;
}

.why-choose-stats {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
    padding: 10px 8px;
    border-radius: 8px;
    transition: transform 0.3s ease, background 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
}

.stat-number {
    font-size: 30px;
    font-weight: 800;
    color: var(--color-red);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

@media (max-width: 1024px) {
    .why-choose-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .why-choose-section {
        padding: 30px 0;
    }
    
    .why-choose-title {
        font-size: 28px;
    }
    
    .why-choose-desc {
        font-size: 13px;
        margin-bottom: 24px;
    }
    
    .why-choose-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .stat-number {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .why-choose-stats {
        grid-template-columns: 1fr;
    }
}

/* On-time Delivery Logo Wall */
.delivery-section {
    padding: 60px 0;
    background-color: var(--color-light-bg);
}

.delivery-section .section-subtitle {
    text-align: center;
    color: var(--color-gray);
    margin-top: -20px;
    margin-bottom: 40px;
}

.logo-wall {
    margin-bottom: 48px;
}

.logo-wall-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.logo-wall-item {
    background: var(--color-white);
    border-radius: 8px;
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    min-height: 120px;
}

.logo-wall-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.logo-wall-item img {
    max-width: 100%;
    max-height: 80px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.logo-wall-item:hover img {
    transform: scale(1.1);
}

.logistics-title {
    text-align: center;
    font-size: 22px;
    font-weight: 900;
    color: var(--color-dark);
    margin-bottom: 24px;
    padding-top: 16px;
    border-top: 2px solid var(--color-red);
    display: inline-block;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

.logistics-title font {
    font-weight: 900 !important;
}

.logistics-logos-card {
    background: var(--color-white);
    border-radius: 12px;
    padding: 32px 40px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    margin-bottom: 24px;
}

.logistics-logos-row {
    display: flex;
    align-items: center;
    justify-content: space-around;
    gap: 24px;
}

.logistics-logos-row img {
    height: 60px;
    max-width: 160px;
    object-fit: contain;
}

.transport-photos {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.transport-photo {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.transport-photo img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.transport-photo:hover img {
    transform: scale(1.03);
}

@media (max-width: 1024px) {
    .logo-wall-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .logo-wall-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .logistics-logos-row {
        flex-wrap: wrap;
        gap: 16px;
    }
    .logistics-logos-row img {
        height: 40px;
        max-width: 120px;
    }
    .transport-photos {
        grid-template-columns: 1fr;
    }
    .transport-photo img {
        height: 180px;
    }
}

@media (max-width: 480px) {
    .logo-wall-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* About */
.about-section {
    padding: 60px 0;
    background-color: var(--color-light-bg);
}

.about-main {
    max-width: 900px;
    margin: 0 auto;
}

.about-main p {
    font-size: 15px;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-main p strong {
    color: var(--color-dark);
}

.about-info {
    background-color: var(--color-white);
    border-radius: 8px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.about-info h3 {
    font-size: 18px;
    margin-bottom: 18px;
    color: var(--color-dark);
    font-weight: 700;
    border-bottom: 2px solid var(--color-red);
    padding-bottom: 10px;
}

.about-info ul {
    list-style: none;
}

.about-info li {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-light-gray);
    font-size: 14px;
    gap: 16px;
}

.about-info li span:first-child {
    color: var(--color-gray);
    white-space: nowrap;
}

.about-info li span:last-child {
    color: var(--color-dark);
    font-weight: 600;
    text-align: right;
}

/* Strengths */
.strengths-section {
    padding: 50px 0;
    background-color: var(--color-white);
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.strength-card {
    text-align: left;
    padding: 0;
    border: none;
    border-radius: 0;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.strength-card:hover {
    transform: translateY(-4px);
}

.strength-icon {
    display: none;
}

.strength-card h3 {
    font-size: 16px;
    margin-bottom: 10px;
    color: var(--color-dark);
    font-weight: 700;
}

.strength-card p {
    font-size: 13px;
    color: var(--color-gray);
    line-height: 1.6;
}

/* Products Tabs */
.products-section {
    padding: 60px 0;
    background-color: var(--color-light-bg);
}

.section-title {
    text-align: center;
    font-size: 30px;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--color-dark);
}

.product-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 40px;
    border-bottom: 1px solid var(--color-light-gray);
    padding-bottom: 16px;
}

.tab-btn {
    padding: 10px 18px;
    background: none;
    border: none;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-gray);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.25s ease;
}

.tab-btn:hover,
.tab-btn.active {
    color: var(--color-red);
    border-bottom-color: var(--color-red);
}

.product-content {
    display: none;
    gap: 24px;
}

.product-content.active {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

.product-card {
    background-color: var(--color-white);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    position: relative;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
    opacity: 1;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.product-card img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: contain;
    margin-bottom: 12px;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.product-card p {
    font-size: 12px;
    color: var(--color-gray);
    line-height: 1.5;
}

.product-tag {
    display: inline-block;
    position: absolute;
    top: 12px;
    right: 12px;
    background-color: var(--color-red);
    color: var(--color-white);
    font-size: 11px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 4px;
}

.product-text {
    flex: 1;
}

.product-text h3 {
    font-size: 26px;
    margin-bottom: 20px;
    color: var(--color-dark);
}

.product-text ul {
    margin-bottom: 24px;
}

.product-text li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    color: var(--color-gray);
}

.product-text li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 7px;
    height: 7px;
    background-color: var(--color-red);
    border-radius: 50%;
}

.product-image {
    flex: 1;
    max-width: 540px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.product-image img {
    width: 100%;
    height: auto;
    transform: scale(1.07);
}

.product-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 32px;
}

.product-nav button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--color-light-gray);
    background-color: var(--color-white);
    cursor: pointer;
    font-size: 18px;
    color: var(--color-gray);
    transition: all 0.25s ease;
}

.product-nav button:hover {
    background-color: var(--color-red);
    color: var(--color-white);
    border-color: var(--color-red);
}

.product-nav button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.product-nav button:disabled:hover {
    background-color: var(--color-white);
    color: var(--color-gray);
    border-color: var(--color-light-gray);
}

/* How to Order */
.howto-section {
    padding: 60px 0;
    background-color: var(--color-white);
}

.howto-section .section-subtitle {
    text-align: center;
    color: var(--color-gray);
    margin-top: -20px;
    margin-bottom: 40px;
}

.howto-section .section-subtitle a {
    color: var(--color-red);
    font-weight: 600;
}

.howto-inner {
    display: flex;
    align-items: center;
    gap: 50px;
}

.video-thumb {
    flex: 1;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    cursor: pointer;
}

.video-thumb img {
    width: 100%;
    height: auto;
    transform: scale(1.07);
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background-color: var(--color-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 24px;
    padding-left: 6px;
}

.youtube-badge {
    position: absolute;
    bottom: 16px;
    right: 16px;
    background-color: var(--color-red);
    color: var(--color-white);
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 700;
    border-radius: 4px;
}

.howto-steps {
    flex: 1;
}

.step-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: var(--color-red);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-text h4 {
    font-size: 16px;
    margin-bottom: 4px;
    color: var(--color-dark);
}

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

/* Industry Solutions */
.industry-section {
    padding: 60px 0;
    background-color: var(--color-light-bg);
}

.industry-header {
    text-align: center;
    margin-bottom: 36px;
}

.industry-header .section-title {
    margin-bottom: 12px;
}

.industry-header .section-subtitle {
    max-width: 760px;
    margin: 0 auto 24px;
    color: var(--color-gray);
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.industry-card {
    background-color: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    transition: transform 0.25s ease;
}

.industry-card:hover {
    transform: translateY(-4px);
}

.industry-card img {
    width: 100%;
    height: 170px;
    object-fit: cover;
    transform: scale(1.07);
}

.industry-card-body {
    padding: 20px;
}

.industry-card-body h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--color-dark);
}

.industry-card-body p {
    font-size: 13px;
    color: var(--color-gray);
    margin-bottom: 14px;
    line-height: 1.5;
}

.read-more {
    color: var(--color-red);
    font-weight: 600;
    font-size: 14px;
}

.read-more:hover {
    text-decoration: underline;
}

/* Certifications */
.cert-section {
    padding: 40px 0;
    background-color: var(--color-white);
    border-top: 1px solid var(--color-light-gray);
}

.cert-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 32px;
}

.cert-item {
    width: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0.85;
    transition: opacity 0.25s ease;
}

.cert-item:hover {
    opacity: 1;
}

.cert-item img {
    width: 100px;
    height: 100px;
    object-fit: contain;
    transform: scale(1.07);
}

.cert-label {
    font-size: 12px;
    color: #555555;
    text-align: center;
    font-weight: 600;
}

/* Footer */
.site-footer {
    background-color: #f7f7f7;
    color: #555555;
    font-size: 13px;
    border-top: 1px solid var(--color-light-gray);
}

.footer-main {
    padding: 50px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
}

.footer-title {
    color: #222222;
    font-size: 14px;
    margin-bottom: 18px;
    font-weight: 700;
}

.contact-intro {
    font-size: 12px;
    color: #777777;
    margin-bottom: 12px;
    line-height: 1.5;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 10px;
    border: 1px solid #dddddd;
    border-radius: 4px;
    background-color: #ffffff;
    color: #333333;
    font-size: 13px;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #999999;
}

.form-row {
    display: flex;
    gap: 10px;
}

.form-row input {
    flex: 1;
}

.btn-send {
    background-color: var(--color-red);
    color: var(--color-white);
    padding: 10px 20px;
    font-size: 13px;
}

.btn-send:hover {
    background-color: #c40010;
}

.footer-contact-info {
    margin-top: 16px;
}

.footer-contact-info a {
    color: var(--color-red);
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #555555;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--color-red);
}

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.footer-social .social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: var(--color-dark);
    color: var(--color-white);
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.footer-social .social-link:hover {
    background-color: var(--color-red);
    transform: translateY(-2px);
}

.footer-bottom {
    background-color: #ffffff;
    padding: 24px 0;
    border-top: 1px solid #e5e5e5;
}

.bottom-inner {
    display: flex;
    justify-content: center;
    align-items: center;
}

.copyright {
    color: #888888;
    text-align: center;
}

/* Chat Widget */
.chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 260px;
    background-color: var(--color-white);
    border-radius: 8px;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
    z-index: 2000;
    overflow: hidden;
}

.chat-header {
    background-color: var(--color-red);
    color: var(--color-white);
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-title {
    font-weight: 700;
}

.chat-close {
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 22px;
    cursor: pointer;
}

.chat-body {
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--color-gray);
}

.chat-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.chat-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.07);
}

.chat-widget.closed {
    display: none;
}

/* Quote Page */
.quote-page {
    padding: 40px 0 60px;
    background-color: var(--color-light-bg);
}

.quote-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--color-dark);
}

.quote-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 24px;
}

.quote-form-card,
.quote-summary-card {
    background-color: var(--color-white);
    border-radius: 8px;
    padding: 24px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
}

.quote-form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.quote-form .form-group {
    display: flex;
    flex-direction: column;
}

.quote-form .form-group.full-width {
    grid-column: 1 / -1;
}

.quote-form label {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--color-dark);
}

.quote-form input,
.quote-form select {
    padding: 10px 12px;
    border: 1px solid var(--color-light-gray);
    border-radius: 4px;
    font-size: 14px;
    color: var(--color-text);
}

.size-inputs {
    display: flex;
    align-items: center;
    gap: 8px;
}

.size-inputs input {
    flex: 1;
}

.size-inputs span {
    color: var(--color-gray);
}

.quote-actions {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 10px;
}

.btn-calculate {
    background-color: var(--color-red);
    color: var(--color-white);
    font-size: 16px;
    font-weight: 700;
    padding: 14px 36px;
    text-transform: uppercase;
}

.btn-calculate:hover {
    background-color: #c40010;
}

.total-amount {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
}

.total-amount span {
    color: var(--color-red);
    font-size: 24px;
}

.coupon-banner {
    background: linear-gradient(135deg, #fff8f8 0%, #fff0f0 100%);
    border: 1px dashed var(--color-red);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
    text-align: center;
}

.coupon-banner h3 {
    color: var(--color-red);
    font-size: 16px;
    margin-bottom: 8px;
}

.coupon-banner p {
    font-size: 13px;
    color: var(--color-gray);
}

.coupon-tags {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 10px;
}

.coupon-tag {
    background-color: var(--color-red);
    color: var(--color-white);
    padding: 6px 14px;
    border-radius: 4px;
    font-weight: 700;
}

.summary-list {
    margin-top: 16px;
}

.summary-list li {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-light-gray);
    font-size: 14px;
}

.summary-list li span:first-child {
    color: var(--color-gray);
}

.summary-list li span:last-child {
    font-weight: 600;
    color: var(--color-dark);
}

/* Inner Pages */
.page-banner {
    position: relative;
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: 80px 0;
    text-align: center;
    overflow: hidden;
}

.page-banner-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.page-banner-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.page-banner .container {
    position: relative;
    z-index: 1;
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
}

.page-subtitle {
    font-size: 18px;
    color: var(--color-light-gray);
}

.page-content {
    padding: 60px 0;
    background-color: var(--color-light-bg);
}

.pcbs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.pcb-type-card {
    background-color: var(--color-white);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.pcb-type-card img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: contain;
    margin-bottom: 16px;
}

.pcb-type-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--color-dark);
}

.pcb-type-card p {
    font-size: 13px;
    color: var(--color-gray);
    line-height: 1.6;
}

.service-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 48px;
}

.service-text h2 {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--color-dark);
}

.service-text p {
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.service-text ul {
    margin-bottom: 24px;
}

.service-text li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    color: var(--color-gray);
}

.service-text li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 7px;
    height: 7px;
    background-color: var(--color-red);
    border-radius: 50%;
}

.service-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.service-highlights {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.highlight-item {
    background-color: var(--color-white);
    border-radius: 8px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.highlight-item h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--color-dark);
}

.highlight-item p {
    font-size: 13px;
    color: var(--color-gray);
    line-height: 1.6;
}

.capabilities-table-wrap {
    overflow-x: auto;
    margin-bottom: 48px;
}

.capabilities-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--color-white);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    border-radius: 8px;
    overflow: hidden;
}

.capabilities-table th,
.capabilities-table td {
    padding: 16px 24px;
    text-align: left;
    border-bottom: 1px solid var(--color-light-gray);
}

.capabilities-table th {
    background-color: var(--color-dark);
    color: var(--color-white);
    font-weight: 600;
}

.capabilities-table tr:last-child td {
    border-bottom: none;
}

.capabilities-table td:first-child {
    font-weight: 600;
    color: var(--color-dark);
    width: 30%;
}

.capabilities-table td:last-child {
    color: var(--color-gray);
}

.about-page-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 48px;
}

.about-text p {
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.about-info {
    background-color: var(--color-white);
    border-radius: 8px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    height: fit-content;
}

.about-info h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--color-dark);
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-red);
}

.about-info li {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px dashed var(--color-light-gray);
    font-size: 14px;
}

.about-info li:last-child {
    border-bottom: none;
}

.about-info li span:first-child {
    color: var(--color-dark);
    font-weight: 600;
}

.about-info li span:last-child {
    color: var(--color-gray);
    text-align: right;
    max-width: 60%;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info h2 {
    font-size: 28px;
    margin-bottom: 16px;
    color: var(--color-dark);
}

.contact-info p {
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 24px;
}

.contact-list {
    margin-bottom: 24px;
}

.contact-list li {
    padding: 12px 0;
    color: var(--color-gray);
    border-bottom: 1px dashed var(--color-light-gray);
}

.contact-list li strong {
    color: var(--color-dark);
    display: inline-block;
    width: 80px;
}

.contact-qr {
    text-align: center;
}

.contact-qr img {
    width: 140px;
    height: 140px;
    object-fit: contain;
    margin-bottom: 8px;
}

.contact-qr span {
    display: block;
    font-size: 13px;
    color: var(--color-gray);
}

.contact-social {
    margin-top: 28px;
}

.contact-social h3 {
    font-size: 18px;
    margin-bottom: 14px;
    color: var(--color-dark);
}

.contact-social .social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.contact-social .social-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 6px;
    background-color: var(--color-dark);
    color: var(--color-white);
    font-size: 14px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.contact-social .social-link:hover {
    background-color: var(--color-red);
    transform: translateY(-2px);
}

.contact-form-wrap {
    background-color: var(--color-white);
    border-radius: 8px;
    padding: 32px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.contact-form-wrap h3 {
    font-size: 22px;
    margin-bottom: 24px;
    color: var(--color-dark);
}

.contact-form .form-group {
    margin-bottom: 20px;
}

.contact-form label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-dark);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-light-gray);
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-red);
    box-shadow: 0 0 0 3px rgba(206, 0, 26, 0.1);
}

.contact-form textarea {
    resize: vertical;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-inner {
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-list li {
        display: inline-block;
        margin: 0 12px 10px;
    }

    .mini-quote {
        margin: 24px auto 0;
    }

    .hero-boards {
        margin: 0 auto;
    }

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

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

    .service-intro,
    .about-page-section,
    .contact-layout {
        grid-template-columns: 1fr;
    }

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

    .howto-inner {
        flex-direction: column;
    }

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

/* ============================================
   语言切换器 - PC端导航栏
   ============================================ */
.nav-lang-item {
    list-style: none;
}

.nav-lang-switcher {
    position: relative;
}

.nav-lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid #e5e5e5;
    border-radius: 4px;
    color: var(--color-text);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
}

.nav-lang-btn:hover {
    border-color: var(--color-red);
    background: white;
}

.nav-lang-btn .flag-img {
    width: 24px;
    height: 18px;
    object-fit: cover;
    border-radius: 3px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.nav-lang-btn .lang-chevron {
    margin-left: auto;
    font-size: 10px;
    color: var(--color-gray);
    transition: transform 0.2s ease;
}

.nav-lang-btn.active .lang-chevron {
    transform: rotate(180deg);
}

.nav-lang-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: white;
    border-radius: 4px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    border: 1px solid #e5e5e5;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s ease;
    z-index: 1000;
    overflow-y: auto;
    overflow-x: hidden;
    max-height: 400px;
}

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

.nav-lang-dropdown .lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.15s ease;
    font-size: 14px;
}

.nav-lang-dropdown .lang-option:hover {
    background: var(--color-light-bg);
    color: var(--color-red);
}

.nav-lang-dropdown .lang-option.active {
    background: rgba(230, 0, 18, 0.08);
    color: var(--color-red);
    font-weight: 600;
}

.nav-lang-dropdown .lang-option .flag-img {
    width: 22px;
    height: 16px;
    object-fit: cover;
    border-radius: 2px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.08);
}

/* Google Translate 隐藏样式 */
.goog-te-banner-frame,
.goog-te-menu-frame,
.goog-te-menu-value,
.goog-te-gadget,
.goog-te-combo,
.skiptranslate,
.goog-te-ftab-frame,
.goog-te-spinner-pos,
iframe.skiptranslate {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    width: 0 !important;
    overflow: hidden !important;
}

#google_translate_element {
    position: absolute !important;
    left: -9999px !important;
    top: -9999px !important;
    visibility: hidden !important;
    height: 0 !important;
    width: 0 !important;
    overflow: hidden !important;
}

body {
    top: 0 !important;
    position: static !important;
}

/* 移动端语言切换器隐藏(桌面端) */
.mobile-lang-fab {
    display: none;
}
.mobile-lang-panel {
    display: none;
}

/* ============================================
   移动端语言切换器 (768px以下)
   ============================================ */
@keyframes fabPulse {
    0%, 100% { box-shadow: 0 4px 15px rgba(230, 0, 18, 0.4); }
    50% { box-shadow: 0 4px 25px rgba(230, 0, 18, 0.6); }
}

.mobile-lang-fab {
    display: none;
    position: fixed;
    top: 48%;
    right: 0.5rem;
    z-index: 999;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    background: white;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: transform 0.2s;
}

.mobile-lang-fab:active {
    transform: scale(0.92);
}

.mobile-lang-fab-globe {
    font-size: 1.5rem;
    color: var(--color-red);
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    transition: top 0.3s;
}

.mobile-lang-fab.active .mobile-lang-fab-globe {
    top: 6px;
}

.mobile-lang-fab-text {
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--color-red);
    white-space: nowrap;
    transition: bottom 0.3s;
}

.mobile-lang-fab.active .mobile-lang-fab-text {
    bottom: 3px;
}

.mobile-lang-panel {
    display: block;
    position: fixed;
    top: 55%;
    right: 3.5rem;
    z-index: 998;
    background: white;
    border-radius: 8px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.18);
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px) scale(0.95);
    transition: all 0.25s ease;
    min-width: 150px;
}

.mobile-lang-panel.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0) scale(1);
}

.mobile-lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.15s;
    font-size: 14px;
}

.mobile-lang-option:hover,
.mobile-lang-option:active {
    background: var(--color-light-bg);
}

.mobile-lang-option.active {
    background: var(--color-red);
    color: white;
}

.mobile-lang-option .flag-img {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
}

@media (max-width: 768px) {
    .mobile-lang-fab {
        display: flex;
    }
    .nav-lang-switcher {
        order: 2;
        margin-top: 0.5rem;
    }
    .nav-lang-item {
        width: 100%;
        display: flex;
        justify-content: center;
    }
    .nav-lang-btn {
        background: transparent;
        border: none;
        border-radius: 4px;
        padding: 12px 24px;
        font-size: 15px;
        width: auto;
    }
    .nav-lang-btn:hover {
        background-color: var(--color-light-bg);
    }
    .nav-lang-dropdown {
        position: static;
        opacity: 0;
        visibility: hidden;
        transform: none;
        box-shadow: none;
        border: 1px solid #e5e5e5;
        margin-top: 0.5rem;
        border-radius: 4px;
        min-width: 180px;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
    }
    .nav-lang-dropdown.active {
        opacity: 1;
        visibility: visible;
        max-height: 500px;
    }
    .nav-lang-dropdown .lang-option {
        padding: 10px 12px;
    }
}

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .contact-col {
        grid-column: 1 / -1;
    }

    .quote-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .top-bar-inner {
        flex-wrap: wrap;
        gap: 10px;
    }

    .top-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-dark);
        flex-direction: column;
        padding: 10px 15px;
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-link {
        width: 100%;
        border-radius: 0;
    }

    .hero-title {
        font-size: 30px;
    }

    .mini-quote {
        flex-direction: column;
        width: 100%;
    }

    .mini-quote select,
    .mini-quote input,
    .btn-quote-mini {
        width: 100%;
    }

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

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

    .industry-grid {
        grid-template-columns: 1fr;
    }

    .industry-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

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

    .quote-form {
        grid-template-columns: 1fr;
    }

    .quote-grid {
        grid-template-columns: 1fr;
    }

    .product-content.active {
        grid-template-columns: 1fr;
    }

    .pcbs-grid,
    .service-highlights {
        grid-template-columns: 1fr;
    }

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

    .page-banner {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .strengths-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .hero-boards {
        grid-template-columns: 1fr;
    }
}

/* PCB Instant Quote Page */
.quote-form-single {
    max-width: 1300px;
    margin: 0 auto;
}

.quote-form-single .quote-form-card {
    background-color: var(--color-white);
    border-radius: 8px;
    padding: 32px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.quote-form-single .quote-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--color-dark);
    border-bottom: 2px solid var(--color-red);
    padding-bottom: 12px;
}

.quote-form-row {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 16px 0;
    border-bottom: 1px solid #f0f0f0;
}

.quote-form-row:last-child {
    border-bottom: none;
}

.quote-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 24px;
    border-bottom: 1px solid #f0f0f0;
    padding: 8px 0;
}

.quote-grid .quote-form-row {
    border-bottom: none;
    padding: 8px 0;
}

.quote-form-label {
    width: 180px;
    flex-shrink: 0;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-dark);
    padding-top: 9px;
    line-height: 1.4;
}

.quote-form-options {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 10px;
}

.option-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border: 1px solid var(--color-light-gray);
    border-radius: 4px;
    background-color: var(--color-white);
    color: var(--color-text);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.option-btn input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.option-btn:hover {
    border-color: var(--color-red);
    color: var(--color-red);
}

.option-btn.active {
    border-color: var(--color-red);
    background-color: var(--color-red);
    color: var(--color-white);
}

.option-btn.active:hover {
    background-color: #c40010;
    border-color: #c40010;
    color: var(--color-white);
}

.quote-input,
.quote-select,
.quote-textarea {
    padding: 10px 12px;
    border: 1px solid var(--color-light-gray);
    border-radius: 4px;
    font-size: 14px;
    color: var(--color-text);
    background-color: var(--color-white);
    font-family: inherit;
    transition: border-color 0.2s ease;
}

.quote-input:focus,
.quote-select:focus,
.quote-textarea:focus {
    outline: none;
    border-color: var(--color-red);
}

.quote-input {
    width: 160px;
}

.quote-select {
    min-width: 160px;
    cursor: pointer;
}

.quote-textarea {
    width: 100%;
    max-width: 560px;
    resize: vertical;
}

.size-inputs {
    display: flex;
    align-items: center;
    gap: 10px;
}

.size-inputs .quote-input {
    width: 120px;
}

.size-inputs span {
    color: var(--color-gray);
    font-weight: 600;
}

.checkbox-options {
    gap: 10px;
}

.checkbox-options .option-btn input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.quote-collapse-row {
    align-items: center;
}

.btn-collapse {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: 1px solid var(--color-red);
    border-radius: 4px;
    background-color: var(--color-white);
    color: var(--color-red);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-collapse:hover {
    background-color: var(--color-red);
    color: var(--color-white);
}

.collapse-icon {
    font-size: 18px;
    font-weight: 700;
    line-height: 1;
}

.quote-sub-section {
    background-color: #fafafa;
    border-radius: 6px;
    padding: 20px;
    margin: 8px 0 16px;
    border-left: 3px solid var(--color-yellow);
    max-height: 2000px;
    opacity: 1;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), margin 0.3s ease, padding 0.3s ease;
}

.quote-sub-section.collapsed {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    margin-bottom: 0;
    padding-top: 0;
    padding-bottom: 0;
    border-left-width: 0;
}

.quote-sub-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 16px;
}

.quote-sub-section .quote-form-row {
    border-bottom-color: #eeeeee;
}

.quote-result-area {
    visibility: hidden;
    opacity: 0;
    transform: translateY(-10px);
    background: linear-gradient(135deg, #fff8f8 0%, #fff0f0 100%);
    border: 1px dashed var(--color-red);
    border-radius: 8px;
    padding: 24px;
    margin: 24px 0;
    text-align: center;
    transition: visibility 0.3s, opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.quote-result-area.show {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
}

.quote-result-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
}

.quote-result-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 8px;
}

.quote-result-price span {
    color: var(--color-red);
    font-size: 32px;
}

.quote-result-note {
    font-size: 13px;
    color: var(--color-gray);
    margin: 0;
}

.quote-form-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--color-light-gray);
}

.quote-form-actions .btn {
    padding: 14px 36px;
    font-size: 15px;
    font-weight: 700;
}

@media (max-width: 768px) {
    .quote-form-single .quote-form-card {
        padding: 20px;
    }

    .quote-form-row {
        flex-direction: column;
        gap: 12px;
    }

    .quote-form-label {
        width: 100%;
        padding-top: 0;
    }

    .quote-form-options {
        width: 100%;
    }

    .quote-input {
        width: 100%;
    }

    .quote-select {
        width: 100%;
    }

    .quote-textarea {
        max-width: 100%;
    }

    .size-inputs .quote-input {
        width: calc(50% - 20px);
    }

    .quote-form-actions {
        flex-direction: column;
    }

    .quote-form-actions .btn {
        width: 100%;
    }

    .option-btn {
        padding: 12px 16px;
        font-size: 14px;
        min-height: 44px;
    }

    .btn-collapse {
        width: 100%;
        justify-content: center;
        min-height: 44px;
    }

    .quote-result-price span {
        font-size: 24px;
    }
}

/* PCBA Assembly Page */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.capability-card {
    background: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.capability-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.capability-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transform: scale(1.07);
}

.capability-content {
    padding: 24px;
}

.capability-content h3 {
    color: var(--color-dark);
    font-size: 20px;
    margin-bottom: 16px;
}

.capability-content ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.capability-content ul li {
    color: var(--color-gray);
    font-size: 14px;
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
    padding-left: 20px;
    position: relative;
}

.capability-content ul li:last-child {
    border-bottom: none;
}

.capability-content ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--color-red);
    border-radius: 50%;
}

.assembly-steps {
    max-width: 800px;
    margin: 40px auto 0;
}

.assembly-step {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid #f0f0f0;
}

.assembly-step:last-child {
    border-bottom: none;
}

.step-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-red), #ff6b35);
    color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
}

.step-content h3 {
    color: var(--color-dark);
    font-size: 18px;
    margin-bottom: 8px;
}

.step-content p {
    color: var(--color-gray);
    font-size: 15px;
    line-height: 1.6;
    margin: 0;
}

.service-models {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.model-card {
    background: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.model-card:hover {
    transform: translateY(-4px);
}

.model-header {
    background: linear-gradient(135deg, var(--color-dark), #333);
    color: white;
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.model-header h3 {
    color: white;
    font-size: 20px;
    margin: 0;
}

.model-badge {
    background: var(--color-yellow);
    color: var(--color-dark);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.model-body {
    padding: 24px;
}

.model-desc {
    color: var(--color-gray);
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.model-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.model-features li {
    color: var(--color-dark);
    font-size: 14px;
    padding: 10px 0;
    padding-left: 24px;
    position: relative;
    border-bottom: 1px solid #f0f0f0;
}

.model-features li:last-child {
    border-bottom: none;
}

.model-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23e60012'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E") no-repeat center;
    background-size: contain;
}

.faq-list {
    max-width: 800px;
    margin: 40px auto 0;
}

.faq-item {
    background: var(--color-white);
    border-radius: 8px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.faq-question {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: #f8f8f8;
}

.faq-question h3 {
    color: var(--color-dark);
    font-size: 16px;
    margin: 0;
    flex: 1;
}

.faq-toggle {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: var(--color-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--color-dark);
    transition: transform 0.3s ease, background 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
    background: var(--color-red);
    color: white;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 24px 20px;
}

.faq-answer p {
    color: var(--color-gray);
    font-size: 15px;
    line-height: 1.6;
    margin: 0;
}

.btn-white {
    background: white;
    color: var(--color-red);
    border: none;
    padding: 14px 32px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
}

.btn-white:hover {
    background: var(--color-light);
    transform: translateY(-2px);
}

.btn-outline-white {
    background: transparent;
    color: white;
    border: 2px solid white;
    padding: 12px 32px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
}

.btn-outline-white:hover {
    background: white;
    color: var(--color-red);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .capabilities-grid {
        grid-template-columns: 1fr;
    }

    .service-models {
        grid-template-columns: 1fr;
    }

    .page-content {
        padding: 36px 0;
    }

    .page-content > .container > .section-title {
        font-size: 22px;
        margin-bottom: 6px;
    }

    .page-content > .container > .section-subtitle {
        font-size: 14px;
        font-weight: 400;
        color: var(--color-gray);
        text-align: center;
        margin: 0 0 20px;
        line-height: 1.6;
    }

    .assembly-steps {
        margin-top: 0;
        max-width: 100%;
    }

    .assembly-step {
        align-items: flex-start;
        gap: 14px;
        padding: 14px 0;
    }

    .step-icon {
        width: 40px;
        height: 40px;
        font-size: 15px;
        border-radius: 8px;
    }

    .step-content h3 {
        font-size: 15px;
        margin-bottom: 4px;
    }

    .step-content p {
        font-size: 13px;
        line-height: 1.65;
    }

    .capability-image {
        height: 160px;
    }

    .faq-question {
        padding: 16px;
    }

    .faq-question h3 {
        font-size: 14px;
    }

    .model-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .model-body {
        padding: 20px 16px;
    }

    .btn-white,
    .btn-outline-white {
        width: 100%;
        text-align: center;
        margin: 0 0 12px 0;
    }
}

/* Capabilities Page */
.capabilities-section {
    padding: 40px 0 60px;
}

.capabilities-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 30px;
}

/* Sidebar */
.capabilities-sidebar {
    position: sticky;
    top: 100px;
    align-self: start;
}

.sidebar-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-dark);
}

.sidebar-nav {
    margin-bottom: 24px;
}

.nav-group {
    margin-bottom: 4px;
}

.nav-group-header {
    background: var(--color-dark);
    color: white;
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

.nav-group-header:hover {
    background: #333;
}

.nav-group.active .nav-group-header,
.nav-group.open .nav-group-header {
    background: var(--color-red);
}

.toggle-icon {
    font-size: 16px;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.nav-submenu {
    list-style: none;
    padding: 0;
    margin: 4px 0 0;
    background: #f5f5f5;
    border-radius: 4px;
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-group.has-submenu.open .nav-submenu {
    max-height: 500px;
}

.nav-submenu li a {
    display: block;
    padding: 10px 16px;
    color: var(--color-gray);
    text-decoration: none;
    font-size: 13px;
    transition: all 0.3s ease;
}

.nav-submenu li a:hover,
.nav-submenu li a.active {
    background: #e8e8e8;
    color: var(--color-dark);
}

.nav-group-link {
    display: block;
    padding: 12px 16px;
    background: var(--color-dark);
    color: white;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    border-radius: 4px;
    transition: background 0.3s ease;
}

.nav-group-link:hover {
    background: #333;
}

/* Sidebar Promo */
.sidebar-promo {
    background: var(--color-dark);
    border-radius: 8px;
    padding: 20px;
    color: white;
}

.sidebar-promo h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.4;
}

.promo-image {
    width: 100%;
    border-radius: 6px;
    margin-bottom: 16px;
    transform: scale(1.07);
}

.promo-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.promo-list li {
    padding: 6px 0;
    font-size: 13px;
    padding-left: 16px;
    position: relative;
}

.promo-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--color-yellow);
    border-radius: 50%;
}

/* Content Area */
.capabilities-content {
    min-width: 0;
}

.content-section {
    margin-bottom: 40px;
}

.content-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-red);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid #eee;
}

.content-intro p {
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-dark);
    margin: 30px 0 16px;
}

.section-desc {
    color: var(--color-gray);
    line-height: 1.6;
    margin-bottom: 20px;
}

.spec-subtitle {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-dark);
    margin: 24px 0 16px;
}

/* Advantage List */
.advantage-list {
    margin: 20px 0;
}

.advantage-item {
    margin-bottom: 20px;
}

.advantage-item h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-red);
    margin-bottom: 8px;
}

.advantage-item p {
    color: var(--color-gray);
    line-height: 1.6;
}

/* Spec Table */
.spec-table-wrapper {
    overflow-x: auto;
    margin: 20px 0;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.spec-table thead th {
    background: var(--color-dark);
    color: white;
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
}

.spec-table tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid #e0e0e0;
    vertical-align: top;
}

.spec-table tbody tr:last-child td {
    border-bottom: none;
}

.spec-table tbody tr:hover {
    background: #f8f8f8;
}

.spec-image {
    width: 120px;
    height: auto;
    border-radius: 4px;
    transform: scale(1.07);
}

.spec-link {
    color: var(--color-red);
    text-decoration: underline;
}

.spec-link:hover {
    color: #cc0010;
}

/* Quote Button */
.quote-btn {
    display: inline-block;
    margin-top: 24px;
    padding: 14px 32px;
    font-size: 16px;
}

/* Application List */
.application-list {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.application-list li {
    padding: 10px 0;
    padding-left: 20px;
    position: relative;
    color: var(--color-gray);
    line-height: 1.6;
}

.application-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 18px;
    width: 8px;
    height: 8px;
    background: var(--color-red);
    border-radius: 50%;
}

.application-list li strong {
    color: var(--color-dark);
}

/* FAQ */
.capabilities-content .faq-list {
    margin: 20px 0;
    max-width: 100%;
}

.capabilities-content .faq-item {
    margin-bottom: 12px;
}

.capabilities-content .faq-question {
    background: var(--color-light);
    cursor: default;
}

.capabilities-content .faq-question h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-dark);
    margin: 0;
}

.capabilities-content .faq-answer {
    max-height: none;
    padding: 16px;
    background: white;
}

.capabilities-content .faq-item.active .faq-answer {
    padding: 0 16px 16px;
}

/* Responsive */
@media (max-width: 1024px) {
    .capabilities-layout {
        grid-template-columns: 220px 1fr;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .capabilities-layout {
        grid-template-columns: 1fr;
    }

    .capabilities-sidebar {
        position: static;
    }

    .sidebar-nav {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .nav-group {
        flex: 1;
        min-width: calc(50% - 4px);
    }

    .nav-group-header {
        min-height: 44px;
    }

    .sidebar-promo {
        display: none;
    }

    .spec-image {
        width: 80px;
    }

    .content-title {
        font-size: 22px;
    }
}

@media (max-width: 480px) {
    .nav-group {
        min-width: 100%;
    }

    .nav-group-header {
        padding: 14px 16px;
    }

    .content-title {
        font-size: 20px;
    }

    .content-intro p {
        font-size: 14px;
        line-height: 1.7;
    }

    .page-content {
        padding: 28px 0;
    }

    .page-content > .container > .section-title {
        font-size: 20px;
    }

    .page-content > .container > .section-subtitle {
        font-size: 13px;
        margin-bottom: 16px;
    }

    .assembly-steps {
        margin-top: 0;
    }

    .assembly-step {
        padding: 12px 0;
        gap: 10px;
    }

    .step-icon {
        width: 36px;
        height: 36px;
        font-size: 14px;
        border-radius: 6px;
    }

    .step-content h3 {
        font-size: 14px;
    }

    .step-content p {
        font-size: 12px;
        line-height: 1.6;
    }
}

/* Layer Diagram */
.layer-diagram {
    margin: 20px 0;
    text-align: center;
}

.diagram-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.layer-descriptions {
    margin: 20px 0;
}

.layer-descriptions p {
    color: var(--color-gray);
    line-height: 1.6;
    margin-bottom: 8px;
}

/* Flex PCB Image */
.flex-image {
    margin: 20px 0;
    text-align: center;
}

.flex-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* ========== Scroll Reveal Animations ========== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.revealed {
    opacity: 1;
    transform: scale(1);
}

/* Staggered delay for grouped items */
.reveal-delay-1 { transition-delay: 0.05s; }
.reveal-delay-2 { transition-delay: 0.1s; }
.reveal-delay-3 { transition-delay: 0.15s; }
.reveal-delay-4 { transition-delay: 0.2s; }
.reveal-delay-5 { transition-delay: 0.25s; }
.reveal-delay-6 { transition-delay: 0.3s; }

/* ========== Additional Hover Effects ========== */

/* PCB type cards */
.pcb-type-card {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.pcb-type-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.pcb-type-card img {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.pcb-type-card:hover img {
    transform: scale(1.05);
}

/* Highlight items */
.highlight-item {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.highlight-item:hover {
    transform: translateY(-4px);
}

/* About info */
.about-info {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.about-info:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

/* Nav link active indicator - defined above */

/* Mobile menu toggle hover */
.mobile-menu-toggle {
    transition: opacity 0.2s ease;
}

.mobile-menu-toggle:hover {
    opacity: 0.7;
}

.mobile-menu-toggle:active {
    transform: scale(0.9);
    transition-duration: 0.1s;
}

/* Slider dots hover */
.slider-dot {
    transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.3s ease;
}

.slider-dot:hover {
    transform: scale(1.3);
}

/* Read more link */
.read-more {
    position: relative;
}

.read-more::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.read-more:hover::after {
    width: 100%;
}

/* Certification & testimonials image hover */
.certification-item img,
.testimonials-item img {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.certification-item:hover img,
.testimonials-item:hover img {
    transform: scale(1.03);
}

/* Option button active feedback */
.option-btn:active {
    transform: scale(0.95);
    transition-duration: 0.1s;
}