/* ============================================
   彩星化工官网 - 全局样式表
   Design Philosophy: 工业的精度，艺术的温度
   ============================================ */

/* ==================== CSS Variables ==================== */
:root {
    /* Color Palette */
    --primary-blue: #0A2A4E;
    --accent-gold: #FFBF00;
    --white: #FFFFFF;
    --light-gray: #F0F2F5;
    --dark-gray: #333333;
    --overlay-dark: rgba(10, 42, 78, 0.7);

    /* Typography - Using system fonts for faster loading */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    --font-secondary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;

    /* Spacing */
    --section-padding: 100px;
    --section-padding-mobile: 60px;

    /* Transitions */
    --transition-smooth: all 0.3s ease;
    --transition-slow: all 0.6s ease;
}

/* ==================== Global Resets ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.7;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
    max-width: 100vw;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    transition: var(--transition-smooth);
}

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

/* Remove Border Radius (Per Design Requirements) */
button,
.btn,
.card,
img,
input,
textarea,
select {
    border-radius: 0 !important;
}

/* ==================== Utility Classes ==================== */
.section-padding {
    padding: var(--section-padding) 0;
}

.bg-white {
    background-color: var(--white);
}

.bg-light {
    background-color: var(--light-gray);
}

.bg-primary {
    background-color: var(--primary-blue);
}

.section-label {
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent-gold);
    margin-bottom: 1rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
}

.section-subtitle {
    font-size: 1.125rem;
    font-weight: 300;
    color: var(--dark-gray);
    margin-bottom: 2rem;
}

.section-text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--dark-gray);
    margin-bottom: 2rem;
}

.link-arrow {
    display: inline-block;
    font-size: 1rem;
    font-weight: 400;
    color: var(--primary-blue);
    position: relative;
    transition: var(--transition-smooth);
}

.link-arrow:hover {
    color: var(--accent-gold);
    transform: translateX(5px);
}

/* ==================== Header / Navigation ==================== */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
}

#main-header.header-transparent {
    background-color: transparent;
}

#main-header.header-solid {
    background-color: var(--primary-blue);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

#main-header.header-scrolled {
    background-color: var(--primary-blue);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar {
    padding: 1.5rem 0;
    transition: var(--transition-smooth);
}

.header-scrolled .navbar,
.header-solid .navbar {
    padding: 0.75rem 0;
}

.navbar-brand .logo {
    height: 100px;
    width: auto;
    transition: var(--transition-smooth);
}

.header-scrolled .navbar-brand .logo,
.header-solid .navbar-brand .logo {
    height: 60px;
}

.nav-link {
    font-size: 1rem;
    font-weight: 400;
    color: var(--white) !important;
    padding: 0.5rem 1.25rem !important;
    position: relative;
    transition: var(--transition-smooth);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--accent-gold);
    transition: var(--transition-smooth);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 60%;
}

.nav-link:hover {
    color: var(--accent-gold) !important;
}

/* Language Switcher */
.language-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--white);
    font-size: 1rem;
    font-weight: 400;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    transition: var(--transition-smooth);
}

.lang-btn:hover,
.lang-btn.active {
    color: var(--accent-gold);
}

.lang-separator {
    color: var(--white);
    font-size: 1rem;
}

/* CTA Button in Header */
.btn-cta {
    background-color: var(--accent-gold);
    color: var(--primary-blue) !important;
    font-weight: 700;
    padding: 0.75rem 2rem !important;
    border: none;
    transition: var(--transition-smooth);
}

.btn-cta:hover {
    background-color: #E6AB00;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 191, 0, 0.3);
}

/* Mobile Menu Toggle */
.navbar-toggler {
    border: 2px solid var(--white);
    padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ==================== Hero Section ==================== */
.hero-section {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay-dark);
}

.hero-content {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--white);
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
    letter-spacing: 0.1em;
    animation: fadeInUp 1s ease;
}

.hero-divider {
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
    margin: 0 auto 2rem;
    animation: fadeInUp 1.1s ease;
}

.hero-subtitle {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 3rem;
    animation: fadeInUp 1.2s ease;
}

.hero-subtitle span {
    font-size: 1.125rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 0.1em;
    line-height: 1.8;
}

.btn-hero {
    background-color: var(--accent-gold);
    color: var(--primary-blue);
    font-size: 1.125rem;
    font-weight: 700;
    padding: 1rem 3rem;
    border: none;
    display: inline-block;
    transition: var(--transition-smooth);
    animation: fadeInUp 1.4s ease;
}

.btn-hero:hover {
    background-color: var(--primary-blue);
    color: var(--accent-gold);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 191, 0, 0.4);
}

/* ==================== About Preview Section ==================== */
.about-image-wrapper {
    width: 100%;
    height: 100%;
    min-height: 500px;
    overflow: hidden;
}

.about-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.about-image-wrapper:hover .about-image {
    transform: scale(1.05);
}

.about-content-wrapper {
    padding: 4rem 5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
}

/* ==================== Credentials Carousel Section ==================== */
.credentials-carousel {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.carousel-track {
    display: flex;
    animation: scroll 40s linear infinite;
}

.carousel-track:hover {
    animation-play-state: paused;
}

.credential-item {
    flex: 0 0 auto;
    width: 300px;
    margin: 0 1.5rem;
    text-align: center;
}

.credential-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background-color: transparent;
    padding: 0;
    border: 3px solid var(--white);
    margin-bottom: 1rem;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    filter: brightness(1);
}

.credential-item:hover img {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 12px 30px rgba(255, 191, 0, 0.25);
    filter: brightness(1.05);
}

.credential-item p {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--dark-gray);
    line-height: 1.4;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

/* ==================== Product Cards ==================== */
.product-card {
    background-color: var(--white);
    overflow: hidden;
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* Full Width Product Cards */
.product-card-fullwidth {
    border-right: 1px solid var(--light-gray);
}

.product-card-fullwidth:last-child {
    border-right: none;
}

.product-card-fullwidth:hover {
    transform: translateY(0);
    box-shadow: inset 0 -5px 0 0 var(--accent-gold);
    z-index: 10;
}

.product-image-wrapper {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
}

/* Full Width Mode - Taller Images */
.product-card-fullwidth .product-image-wrapper {
    height: 400px;
}

.product-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.product-card:hover .product-image-wrapper img {
    transform: scale(1.1);
}

.product-card-fullwidth:hover .product-image-wrapper img {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 42, 78, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-smooth);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-card-fullwidth .product-overlay {
    background: linear-gradient(to top, rgba(10, 42, 78, 0.95), rgba(10, 42, 78, 0.7));
}

.view-details {
    color: var(--accent-gold);
    font-size: 1.125rem;
    font-weight: 700;
    text-decoration: none;
    position: relative;
    padding: 0.75rem 2rem;
    border: 2px solid var(--accent-gold);
    transition: var(--transition-smooth);
}

.view-details:hover {
    background-color: var(--accent-gold);
    color: var(--primary-blue);
}

.view-details::after {
    content: ' →';
}

.product-content {
    padding: 2rem;
    flex-grow: 1;
}

/* Full Width Product Content */
.product-card-fullwidth .product-content {
    padding: 3rem 2.5rem;
    text-align: center;
}

.product-title {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.product-card-fullwidth .product-title {
    font-size: 1.75rem;
}

.product-desc {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--dark-gray);
}

.product-card-fullwidth .product-desc {
    font-size: 1.0625rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ==================== Case Cards ==================== */
.case-card {
    background-color: var(--white);
    overflow: hidden;
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
    border-left: 4px solid transparent;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    border-left-color: var(--accent-gold);
}

/* Full Width Case Cards */
.case-card-fullwidth {
    border-left: none;
    border-right: 1px solid var(--light-gray);
}

.case-card-fullwidth:last-child {
    border-right: none;
}

.case-card-fullwidth:hover {
    transform: translateY(0);
    box-shadow: inset 0 5px 0 0 var(--accent-gold);
    border-left-color: transparent;
}

.case-image-wrapper {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
}

/* Full Width Mode - Taller Images */
.case-card-fullwidth .case-image-wrapper {
    height: 380px;
}

.case-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.case-card:hover .case-image-wrapper img {
    transform: scale(1.08);
    filter: brightness(0.9);
}

.case-card-fullwidth:hover .case-image-wrapper img {
    transform: scale(1.05);
    filter: brightness(1.05);
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(10, 42, 78, 0.3), rgba(10, 42, 78, 0.7));
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    padding: 1.5rem;
    opacity: 0;
    transition: var(--transition-smooth);
}

.case-card:hover .case-overlay {
    opacity: 1;
}

.case-card-fullwidth .case-overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(10, 42, 78, 0.8), transparent);
}

.case-category {
    background-color: var(--accent-gold);
    color: var(--primary-blue);
    font-size: 0.875rem;
    font-weight: 700;
    padding: 0.5rem 1.25rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Hide case category in home page case cards overlay */
.case-card-fullwidth .case-overlay .case-category {
    display: none;
}

/* ==================== Scroll Animations ==================== */

/* Base state for all animated elements */
.scroll-animate {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

/* When element is visible */
.scroll-animate.animate-in {
    opacity: 1;
}

/* Fade In Animation */
.scroll-animate[data-animation="fade-in"] {
    opacity: 0;
}

.scroll-animate[data-animation="fade-in"].animate-in {
    opacity: 1;
}

/* Slide Up Animation */
.scroll-animate[data-animation="slide-up"] {
    opacity: 0;
    transform: translateY(50px);
}

.scroll-animate[data-animation="slide-up"].animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* Slide Left Animation */
.scroll-animate[data-animation="slide-left"] {
    opacity: 0;
    transform: translateX(-50px);
}

.scroll-animate[data-animation="slide-left"].animate-in {
    opacity: 1;
    transform: translateX(0);
}

/* Slide Right Animation */
.scroll-animate[data-animation="slide-right"] {
    opacity: 0;
    transform: translateX(50px);
}

.scroll-animate[data-animation="slide-right"].animate-in {
    opacity: 1;
    transform: translateX(0);
}

/* Scale Fade Animation */
.scroll-animate[data-animation="scale-fade"] {
    opacity: 0;
    transform: scale(0.9);
}

.scroll-animate[data-animation="scale-fade"].animate-in {
    opacity: 1;
    transform: scale(1);
}

/* Animation delays */
.scroll-animate[data-delay="100"] {
    transition-delay: 0.1s;
}

.scroll-animate[data-delay="200"] {
    transition-delay: 0.2s;
}

.scroll-animate[data-delay="300"] {
    transition-delay: 0.3s;
}

.scroll-animate[data-delay="400"] {
    transition-delay: 0.4s;
}

.scroll-animate[data-delay="500"] {
    transition-delay: 0.5s;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    .scroll-animate {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

.case-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

/* Full Width Case Content */
.case-card-fullwidth .case-content {
    padding: 2.5rem 2rem;
}

.case-title {
    font-size: 1.375rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.case-card-fullwidth .case-title {
    font-size: 1.5rem;
}

.case-desc {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--dark-gray);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.case-link {
    color: var(--primary-blue);
    font-weight: 400;
    font-size: 1rem;
    transition: var(--transition-smooth);
    display: inline-block;
}

.case-link:hover {
    color: var(--accent-gold);
    transform: translateX(5px);
}

/* ==================== News Cards ==================== */
.news-card {
    background-color: var(--white);
    overflow: hidden;
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* Full Width News Cards */
.news-card-fullwidth {
    border-right: 1px solid var(--light-gray);
}

.news-card-fullwidth:last-child {
    border-right: none;
}

.news-card-fullwidth:hover {
    transform: translateY(0);
    box-shadow: inset 0 -5px 0 0 var(--accent-gold);
}

.news-image-wrapper {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

/* Full Width Mode - Taller Images */
.news-card-fullwidth .news-image-wrapper {
    height: 320px;
}

.news-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.news-card:hover .news-image-wrapper img {
    transform: scale(1.08);
}

.news-card-fullwidth:hover .news-image-wrapper img {
    transform: scale(1.05);
    filter: brightness(1.05);
}

.news-content {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

/* Full Width News Content */
.news-card-fullwidth .news-content {
    padding: 2.5rem 2rem;
}

.news-date {
    font-size: 0.875rem;
    color: var(--accent-gold);
    font-weight: 400;
    margin-bottom: 0.75rem;
}

.news-title {
    font-size: 1.25rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.news-card-fullwidth .news-title {
    font-size: 1.375rem;
}

.news-excerpt {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--dark-gray);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.news-card-fullwidth .news-excerpt {
    font-size: 1rem;
}

.news-link {
    color: var(--primary-blue);
    font-weight: 400;
    font-size: 1rem;
    transition: var(--transition-smooth);
}

.news-link:hover {
    color: var(--accent-gold);
}

/* ==================== Footer ==================== */
#main-footer {
    background-color: var(--primary-blue);
    color: var(--white);
}

.footer-main {
    padding: 1.5rem 0 1rem;
}

.footer-main .row {
    align-items: center;
}

.footer-logo-wrapper {
    margin-bottom: 0;
    display: flex;
    align-items: center;
}

.footer-logo {
    height: 55px;
    width: auto;
}

.footer-desc {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--light-gray);
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    transition: var(--transition-smooth);
}

.social-link:hover {
    background-color: var(--accent-gold);
    transform: translateY(-3px);
}

.social-link img {
    width: 20px;
    height: 20px;
}

.footer-title {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.5rem;
}

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

.footer-links-column .footer-title,
.footer-links-column .footer-links {
    margin-left: -2.5rem;
}

/* 联系地址列向左移动 */
.footer-contact-column .footer-title,
.footer-contact-column .footer-contact {
    margin-left: -1rem;
}

/* 联系详情列向左移动 */
.footer-details-column .footer-title,
.footer-details-column .footer-contact {
    margin-left: -1.5rem;
}

@media (max-width: 991px) {
    .footer-links-column .footer-title,
    .footer-links-column .footer-links,
    .footer-contact-column .footer-title,
    .footer-contact-column .footer-contact,
    .footer-details-column .footer-title,
    .footer-details-column .footer-contact {
        margin-left: 0;
    }
}

.footer-links-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.25rem 0.75rem;
    max-width: 160px;
}

.footer-links li {
    margin-bottom: 0;
}

.footer-links a {
    color: var(--light-gray);
    font-size: 0.8125rem;
    transition: var(--transition-smooth);
}

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

.footer-title-hidden {
    visibility: hidden;
}

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

.footer-contact li {
    margin-bottom: 0.375rem;
    font-size: 0.8125rem;
    line-height: 1.4;
}

.footer-contact strong {
    color: var(--white);
    display: inline;
    margin-right: 0.125rem;
}

.footer-contact span {
    color: var(--light-gray);
}

.qr-code-wrapper {
    text-align: center;
}

.qr-code {
    width: 150px;
    height: 150px;
    margin: 0 auto 1rem;
    background-color: var(--white);
    padding: 0.5rem;
}

.qr-label {
    font-size: 0.875rem;
    color: var(--light-gray);
}

.footer-bottom {
    padding: 0.75rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright,
.beian {
    font-size: 0.8125rem;
    color: var(--light-gray);
    margin-bottom: 0;
    margin: 0.5rem 0;
}

.beian a {
    color: var(--light-gray);
    transition: var(--transition-smooth);
}

.beian a:hover {
    color: var(--accent-gold);
}

/* ==================== Fixed Contact Button ==================== */
.fixed-contact {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
}

.contact-btn {
    position: relative;
    width: 64px;
    height: 64px;
    border-radius: 50% !important;
    background: linear-gradient(135deg, #09BB07 0%, #07C160 100%);
    border: none;
    box-shadow: 0 8px 24px rgba(9, 187, 7, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    animation: pulse 2.5s ease-in-out infinite;
}

.contact-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: rgba(9, 187, 7, 0.3);
    animation: ripple 2.5s ease-out infinite;
    z-index: -1;
}

.contact-btn:hover {
    transform: translateY(-3px) scale(1.08);
    box-shadow: 0 12px 32px rgba(9, 187, 7, 0.45);
    animation: none;
}

.contact-btn:hover::before {
    animation: none;
}

.contact-btn:active {
    transform: translateY(-1px) scale(1.05);
}

.contact-btn img {
    width: 36px;
    height: 36px;
    filter: brightness(0) invert(1);
    transition: var(--transition-smooth);
}

.contact-btn:hover img {
    transform: scale(1.1) rotate(-5deg);
}

.contact-qr {
    position: absolute;
    bottom: 8px;
    right: 84px;
    background: linear-gradient(135deg, #FFFFFF 0%, #F8F9FA 100%);
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateX(20px) scale(0.95);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(9, 187, 7, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-qr::before {
    content: '';
    position: absolute;
    top: 50%;
    right: -8px;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 8px 0 8px 8px;
    border-color: transparent transparent transparent #FFFFFF;
}

.fixed-contact:hover .contact-qr {
    opacity: 1;
    visibility: visible;
    transform: translateX(0) scale(1);
}

.contact-qr img {
    width: 180px;
    height: auto;
    margin-bottom: 0.75rem;
    border-radius: 8px;
    border: 2px solid #F0F0F0;
    display: block;
}

.contact-qr p {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--dark-gray);
    text-align: center;
    margin: 0;
    white-space: nowrap;
}

/* Pulse Animation */
@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 8px 24px rgba(9, 187, 7, 0.35);
    }

    50% {
        box-shadow: 0 8px 28px rgba(9, 187, 7, 0.5);
    }
}

/* Ripple Animation */
@keyframes ripple {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }

    100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}

/* ==================== Animations ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== Responsive Design ==================== */
@media (max-width: 991px) {
    :root {
        --section-padding: 60px;
    }

    /* 平板端logo */
    .navbar-brand .logo {
        height: 60px;
    }

    .header-scrolled .navbar-brand .logo {
        height: 50px;
    }

    .hero-title {
        font-size: 2rem;
        letter-spacing: 0.05em;
    }

    .hero-divider {
        width: 60px;
        margin-bottom: 1.5rem;
    }

    .hero-subtitle span {
        font-size: 0.9375rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-image-wrapper {
        min-height: 350px;
    }

    .about-content-wrapper {
        padding: 3rem 2rem;
    }

    .navbar-collapse {
        background-color: var(--primary-blue);
        padding: 1.5rem;
        margin-top: 1rem;
        border-radius: 8px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    }

    .nav-item {
        margin-bottom: 0.5rem;
    }

    .nav-link {
        padding: 0.875rem 1rem !important;
        border-radius: 6px;
        font-size: 1.0625rem;
        text-align: left;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

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

    .nav-link::after {
        display: none;
    }

    .nav-link.active {
        background-color: rgba(255, 191, 0, 0.15);
        border-left: 3px solid var(--accent-gold);
    }

    .language-switcher {
        justify-content: flex-start;
        padding: 0.875rem 1rem;
        border-top: 1px solid rgba(255, 255, 255, 0.2);
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
        margin: 0.5rem 0;
    }

    .btn-cta {
        margin-top: 0.5rem;
        display: block;
        text-align: center;
        width: 100%;
        padding: 0.875rem 1.5rem;
    }

    /* Full Width Products - Tablet */
    .product-card-fullwidth {
        border-right: none;
        border-bottom: 1px solid var(--light-gray);
    }

    .product-card-fullwidth:last-child {
        border-bottom: none;
    }

    .product-card-fullwidth .product-image-wrapper {
        height: 350px;
    }

    /* Full Width Cases - Tablet */
    .case-card-fullwidth {
        border-right: none;
        border-bottom: 1px solid var(--light-gray);
    }

    .case-card-fullwidth:last-child {
        border-bottom: none;
    }

    .case-card-fullwidth .case-image-wrapper {
        height: 340px;
    }

    /* Full Width News - Tablet */
    .news-card-fullwidth {
        border-right: none;
        border-bottom: 1px solid var(--light-gray);
    }

    .news-card-fullwidth:last-child {
        border-bottom: none;
    }

    .news-card-fullwidth .news-image-wrapper {
        height: 280px;
    }
}

@media (max-width: 767px) {
    /* 移动端logo */
    .navbar-brand .logo {
        height: 40px;
    }

    .header-scrolled .navbar-brand .logo {
        height: 40px;
    }

    .hero-title {
        font-size: 1.625rem;
        letter-spacing: 0.03em;
        margin-bottom: 1rem;
    }

    .hero-divider {
        width: 50px;
        margin-bottom: 1.25rem;
    }

    .hero-subtitle {
        gap: 0.375rem;
        margin-bottom: 2rem;
    }

    .hero-subtitle span {
        font-size: 0.8125rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .about-image-wrapper {
        min-height: 280px;
    }

    .about-content-wrapper {
        padding: 2rem 1.5rem;
    }

    .fixed-contact {
        bottom: 1rem;
        right: 1rem;
    }

    .contact-btn {
        width: 56px;
        height: 56px;
    }

    .contact-btn img {
        width: 32px;
        height: 32px;
    }

    .contact-qr {
        /* 移动端改为点击显示，居中弹出 */
        position: fixed;
        bottom: auto;
        right: auto;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%) scale(0.9);
        z-index: 1000;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
    }

    .contact-qr::before {
        display: none;
    }

    .fixed-contact:hover .contact-qr,
    .fixed-contact.active .contact-qr {
        opacity: 1;
        visibility: visible;
        transform: translate(-50%, -50%) scale(1);
        pointer-events: auto;
    }
    
    /* 移动端点击遮罩层 */
    .fixed-contact.active::after {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: -1;
    }

    /* Full Width Products - Mobile */
    .product-card-fullwidth .product-image-wrapper {
        height: 280px;
    }

    .product-card-fullwidth .product-content {
        padding: 2rem 1.5rem;
    }

    .product-card-fullwidth .product-title {
        font-size: 1.5rem;
    }

    .product-card-fullwidth .product-desc {
        font-size: 1rem;
    }

    /* Full Width Cases - Mobile */
    .case-card-fullwidth .case-image-wrapper {
        height: 260px;
    }

    .case-card-fullwidth .case-content {
        padding: 2rem 1.5rem;
    }

    .case-card-fullwidth .case-title {
        font-size: 1.25rem;
    }

    /* Full Width News - Mobile */
    .news-card-fullwidth .news-image-wrapper {
        height: 240px;
    }

    .news-card-fullwidth .news-content {
        padding: 2rem 1.5rem;
    }

    .news-card-fullwidth .news-title {
        font-size: 1.125rem;
    }

    .news-card-fullwidth .news-excerpt {
        font-size: 0.9375rem;
    }

    /* 移动端页脚左右排版 */
    .footer-main .row {
        display: flex;
        flex-wrap: wrap;
    }

    .footer-main .row > div:first-child {
        flex: 0 0 100%;
        max-width: 100%;
        margin-bottom: 0.75rem;
        text-align: center;
    }

    .footer-main .row > div:nth-child(2),
    .footer-main .row > div:nth-child(3),
    .footer-main .row > div:nth-child(4) {
        flex: 0 0 33.333%;
        max-width: 33.333%;
    }

    .footer-main {
        padding: 1rem 0 0.75rem;
    }

    .footer-logo-wrapper {
        justify-content: center;
    }

    .footer-logo {
        height: 45px;
    }

    .footer-title {
        font-size: 0.8125rem;
        margin-bottom: 0.375rem;
    }

    .footer-links-grid {
        grid-template-columns: 1fr;
        gap: 0.25rem;
    }

    .footer-links a {
        font-size: 0.6875rem;
    }

    .footer-title-hidden {
        display: none;
    }

    .footer-contact li {
        margin-bottom: 0.25rem;
        font-size: 0.6875rem;
        line-height: 1.35;
    }

    .footer-bottom {
        padding: 0.5rem 0;
    }

    .copyright {
        font-size: 0.625rem;
    }
}

/* ==================== About Page Styles ==================== */

/* Page Hero */
.page-hero {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
}

.page-hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.page-hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.page-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay-dark);
}

.page-hero-content {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--white);
    text-align: center;
    padding-top: 60px;
}

.page-hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
    letter-spacing: 2px;
}

.page-hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--white);
    margin-bottom: 2rem;
}

.page-hero-divider {
    width: 120px;
    height: 4px;
    background-color: var(--accent-gold);
    margin: 0 auto;
}

/* Brand Narrative */
.narrative-image-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.narrative-image-wrapper::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(to top, rgba(0, 56, 117, 0.15), transparent);
    pointer-events: none;
}

.narrative-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-slow);
}

.narrative-image-wrapper:hover img {
    transform: scale(1.03);
}

.narrative-image-wrapper:hover img {
    transform: scale(1.05);
}

.narrative-content {
    padding: 1rem 0 1rem 2.5rem;
}

.narrative-content .section-label {
    font-size: 0.8125rem;
    letter-spacing: 4px;
    margin-bottom: 0.75rem;
    opacity: 0.9;
}

.narrative-content .section-title {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 1.25rem;
}

.narrative-content .section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-gold), var(--primary-blue));
    border-radius: 2px;
}

.narrative-content .section-text {
    font-size: 0.9375rem;
    line-height: 1.9;
    color: var(--text-gray);
    margin-bottom: 1.25rem;
    text-align: justify;
}

.narrative-content .section-text:last-of-type {
    margin-bottom: 1.5rem;
}

.mission-quote {
    position: relative;
    margin: 1.5rem 0 0;
    padding: 1.5rem 1.5rem 1.5rem 2rem;
    background: linear-gradient(135deg, rgba(0, 56, 117, 0.04), rgba(212, 175, 55, 0.06));
    border-left: 3px solid var(--accent-gold);
    border-radius: 0 8px 8px 0;
}

.quote-mark {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--accent-gold);
    opacity: 0.4;
    line-height: 1;
}

.mission-quote p {
    font-size: 1rem;
    font-style: italic;
    line-height: 1.8;
    color: var(--primary-blue);
    margin: 0;
    padding-left: 1rem;
}

/* Strength Cards */
.strength-card {
    background-color: var(--white);
    overflow: hidden;
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.strength-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.strength-image-wrapper {
    width: 100%;
    height: 280px;
    overflow: hidden;
}

.strength-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.strength-card:hover .strength-image-wrapper img {
    transform: scale(1.08);
}

.strength-content {
    padding: 2rem;
    flex-grow: 1;
}

.strength-title {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.strength-desc {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--dark-gray);
}

/* Corporate Culture Section */
.corporate-culture-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.culture-row {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.culture-image-wrapper {
    position: relative;
    height: 100%;
    min-height: 400px;
    overflow: hidden;
}

.culture-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.culture-row:hover .culture-image {
    transform: scale(1.05);
}

.culture-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(10, 42, 78, 0.1) 0%, rgba(10, 42, 78, 0.3) 100%);
}

.culture-content {
    height: 100%;
    background: var(--white);
    display: flex;
    align-items: center;
}

.culture-content-inner {
    padding: 3rem;
}

.culture-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, #0d3a66 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.culture-icon svg {
    color: var(--accent-gold);
}

.culture-theme {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
    position: relative;
    padding-bottom: 1rem;
}

.culture-theme::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--accent-gold);
}

.culture-text {
    font-size: 1.0625rem;
    line-height: 2;
    color: var(--dark-gray);
    margin: 0;
    text-align: justify;
}

/* Culture Section Responsive */
@media (max-width: 991px) {
    .culture-image-wrapper {
        min-height: 280px;
    }
    
    .culture-content-inner {
        padding: 2rem;
    }
    
    .culture-icon {
        width: 64px;
        height: 64px;
        margin-bottom: 1rem;
    }
    
    .culture-icon svg {
        width: 36px;
        height: 36px;
    }
    
    .culture-theme {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .culture-text {
        font-size: 1rem;
        line-height: 1.8;
    }
}

@media (max-width: 576px) {
    .culture-image-wrapper {
        min-height: 220px;
    }
    
    .culture-content-inner {
        padding: 1.5rem;
    }
    
    .culture-icon {
        width: 56px;
        height: 56px;
    }
    
    .culture-icon svg {
        width: 32px;
        height: 32px;
    }
    
    .culture-theme {
        font-size: 1.25rem;
    }
    
    .culture-text {
        font-size: 0.9375rem;
    }
}

/* Certificate Grid */
.certificate-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.certificate-item {
    text-align: center;
}

.certificate-item img {
    width: 100%;
    height: auto;
    object-fit: contain;
    padding: 15px;
    background-color: var(--white);
    border: 3px solid var(--white);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition-smooth);
}

.certificate-item:hover img {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 12px 30px rgba(255, 191, 0, 0.3);
}

.certificate-item p {
    margin-top: 1rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--dark-gray);
}

/* Partner Logos */
.partner-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    width: 100%;
    flex-wrap: wrap;
}

.partner-logo {
    flex: 0 1 calc(16.666% - 1.67rem);
    text-align: center;
    transition: var(--transition-smooth);
}

.partner-logo img {
    width: 100%;
    height: 120px;
    object-fit: contain;
    padding: 1rem;
    background-color: var(--white);
    border: 3px solid var(--white);
    opacity: 1;
    transition: var(--transition-smooth);
}

.partner-logo:hover img {
    transform: scale(1.05);
    border-color: var(--accent-gold);
}

/* CTA Section */
.cta-section {
    position: relative;
    width: 100%;
    padding: 100px 0;
    overflow: hidden;
}

.cta-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.cta-texture {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.1;
}

.cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--primary-blue);
}

.cta-content {
    position: relative;
    z-index: 10;
    color: var(--white);
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.cta-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--white);
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.btn-cta-large {
    background-color: var(--accent-gold);
    color: var(--primary-blue);
    font-size: 1.125rem;
    font-weight: 700;
    padding: 1.25rem 3.5rem;
    border: none;
    display: inline-block;
    transition: var(--transition-smooth);
    text-decoration: none;
}

.btn-cta-large:hover {
    background-color: var(--white);
    color: var(--primary-blue);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 191, 0, 0.4);
}

/* About Page Responsive */
@media (max-width: 991px) {
    .page-hero {
        height: 400px;
    }

    .page-hero-title {
        font-size: 2.5rem;
    }

    .page-hero-subtitle {
        font-size: 1.25rem;
    }

    .narrative-content {
        padding: 2rem 0 0;
    }

    .narrative-content .section-title {
        font-size: 1.75rem;
    }

    .narrative-content .section-text {
        font-size: 0.9375rem;
    }

    .mission-quote {
        padding: 1.25rem 1.25rem 1.25rem 1.5rem;
    }

    .quote-mark {
        font-size: 2rem;
    }

    .mission-quote p {
        font-size: 0.9375rem;
        padding-left: 0.75rem;
    }

    .certificate-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 1.5rem;
    }

    .partner-logos {
        gap: 1.5rem;
        flex-wrap: wrap;
    }

    .partner-logo {
        flex: 1 1 calc(33.333% - 1rem);
        min-width: 120px;
    }

    .partner-logo img {
        height: 100px;
    }
}

@media (max-width: 767px) {
    .page-hero {
        height: 350px;
    }

    .page-hero-title {
        font-size: 1.875rem;
    }

    .page-hero-subtitle {
        font-size: 1.0625rem;
    }

    .narrative-content {
        padding: 1.5rem 0 0;
    }

    .narrative-content .section-label {
        font-size: 0.75rem;
        letter-spacing: 3px;
    }

    .narrative-content .section-title {
        font-size: 1.375rem;
        padding-bottom: 1rem;
        margin-bottom: 1.25rem;
    }

    .narrative-content .section-title::after {
        width: 50px;
        height: 2px;
    }

    .narrative-content .section-text {
        font-size: 0.875rem;
        line-height: 1.85;
        margin-bottom: 1rem;
        text-align: left;
    }

    .narrative-image-wrapper {
        border-radius: 6px;
    }

    .mission-quote {
        margin-top: 1rem;
        padding: 1rem 1rem 1rem 1.25rem;
    }

    .quote-mark {
        font-size: 1.75rem;
        top: 0.5rem;
        left: 0.5rem;
    }

    .mission-quote p {
        font-size: 0.875rem;
        padding-left: 0.5rem;
    }

    .cta-title {
        font-size: 1.75rem;
    }

    .cta-subtitle {
        font-size: 1rem;
    }

    .certificate-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.5rem;
    }

    .partner-logos {
        gap: 1rem;
        flex-wrap: wrap;
    }

    .partner-logo {
        flex: 1 1 calc(33.333% - 0.67rem);
        min-width: 80px;
    }

    .partner-logo img {
        height: 80px;
        padding: 0.75rem;
    }

    .strength-content {
        padding: 1rem 0.75rem;
    }

    .strength-title {
        font-size: 0.875rem;
        margin-bottom: 0.5rem;
    }

    .strength-desc {
        font-size: 0.75rem;
        line-height: 1.4;
    }

    .strength-image-wrapper {
        height: 120px;
    }

    .certificate-item p {
        font-size: 0.625rem;
        margin-top: 0.25rem;
        line-height: 1.3;
    }

    .certificate-item img {
        border-radius: 4px;
    }
}

/* ==================== Products Page Styles ==================== */

/* Anchor Navigation Bar */
.product-anchor-nav {
    background-color: var(--light-gray);
    padding: 1.5rem 0;
    position: sticky;
    top: 80px;
    z-index: 99;
    border-top: 1px solid #E0E0E0;
    border-bottom: 1px solid #E0E0E0;
}

.anchor-nav-list {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.anchor-nav-link {
    font-size: 1.0625rem;
    font-weight: 500;
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-smooth);
    padding: 0.5rem 0;
    position: relative;
}

.anchor-nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-gold);
    transition: var(--transition-smooth);
}

.anchor-nav-link:hover {
    color: var(--accent-gold);
}

.anchor-nav-link:hover::after {
    width: 100%;
}

.anchor-separator {
    color: var(--primary-blue);
    opacity: 0.3;
}

/* Product Category Sections */
.product-category-section {
    padding: 5rem 0;
}

.product-category-section.bg-white {
    background-color: var(--white);
}

.product-category-section.bg-light {
    background-color: var(--light-gray);
}

.category-header {
    margin-bottom: 3rem;
    text-align: center;
}

.category-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.category-desc {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-dark);
    max-width: 900px;
    margin: 0 auto;
}

/* Product Card - Text Based */
.product-card-text {
    background-color: #F8F9FA;
    border: 1px solid #E5E7EB;
    padding: 2.5rem 2rem;
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.product-card-text:hover {
    background-color: var(--white);
    border-color: var(--accent-gold);
    box-shadow: 0 8px 24px rgba(10, 42, 78, 0.12);
    transform: translateY(-5px);
}

.product-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
    min-height: 60px;
}

.product-card-link {
    font-size: 1rem;
    font-weight: 500;
    color: var(--accent-gold);
    text-decoration: none;
    transition: var(--transition-smooth);
    display: inline-block;
}

.product-card-link:hover {
    color: var(--primary-blue);
    transform: translateX(5px);
}

/* Empty Category State */
.empty-category-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-category-text {
    font-size: 1.125rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.btn-primary-custom {
    background-color: var(--primary-blue);
    color: var(--white);
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.0625rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-smooth);
    display: inline-block;
    margin-top: 1.5rem;
}

.btn-primary-custom:hover {
    background-color: #082139;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(10, 42, 78, 0.3);
}

/* Products Page Responsive */
@media (max-width: 991px) {
    .product-anchor-nav {
        top: 70px;
        padding: 1rem 0;
    }

    .anchor-nav-list {
        gap: 0.75rem 1.5rem;
    }

    .anchor-nav-link {
        font-size: 1rem;
    }

    .product-category-section {
        padding: 4rem 0;
    }

    .category-title {
        font-size: 1.875rem;
    }

    .category-desc {
        font-size: 1rem;
    }

    .product-card-text {
        padding: 2rem 1.5rem;
    }

    .product-card-title {
        font-size: 1.125rem;
        min-height: auto;
    }
}

@media (max-width: 767px) {
    .product-anchor-nav {
        top: 60px;
        padding: 1rem 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .anchor-nav-list {
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 0.5rem 1rem;
        justify-content: flex-start;
        padding: 0 1rem;
    }

    .anchor-nav-link {
        white-space: nowrap;
        font-size: 0.9375rem;
    }

    .anchor-separator {
        display: inline-block;
    }

    .product-category-section {
        padding: 3rem 0;
    }

    .category-header {
        margin-bottom: 2rem;
    }

    .category-title {
        font-size: 1.5rem;
    }

    .category-desc {
        font-size: 0.9375rem;
    }

    /* 移动端产品卡片 - 每排2个 */
    .product-category-section .row {
        margin-left: -0.5rem;
        margin-right: -0.5rem;
    }

    .product-category-section .row>[class*="col-"] {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }

    .product-category-section .col-12 {
        flex: 0 0 50%;
        max-width: 50%;
    }

    .product-card-text {
        padding: 1.25rem 1rem;
    }

    .product-card-title {
        font-size: 0.9375rem;
        margin-bottom: 0.75rem;
        min-height: auto;
        line-height: 1.4;
    }

    .product-card-link {
        font-size: 0.875rem;
    }
}

/* ==================== Product Detail Page ==================== */

/* Product Hero Section */
.product-hero-section {
    background-color: var(--white);
    padding: 3rem 0 5rem;
}

.product-breadcrumb {
    margin-bottom: 2rem;
}

.product-breadcrumb .breadcrumb {
    background-color: transparent;
    padding: 0;
    margin: 0;
}

.product-breadcrumb .breadcrumb-item {
    font-size: 0.9375rem;
}

.product-breadcrumb .breadcrumb-item a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.product-breadcrumb .breadcrumb-item a:hover {
    color: var(--accent-gold);
}

.product-breadcrumb .breadcrumb-item.active {
    color: var(--dark-gray);
}

.product-info {
    padding-right: 2rem;
}

.product-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.product-tagline {
    font-size: 1.375rem;
    font-weight: 400;
    color: var(--accent-gold);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.product-summary {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--dark-gray);
    margin-bottom: 2.5rem;
}

.product-summary p {
    margin-bottom: 1rem;
}

.product-cta {
    margin-top: 2rem;
}

.btn-product-quote {
    background-color: var(--accent-gold);
    color: var(--primary-blue);
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1.0625rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-smooth);
    display: inline-block;
}

.btn-product-quote:hover {
    background-color: #E5AB00;
    color: var(--primary-blue);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 191, 0, 0.4);
}

.product-main-image {
    width: 100%;
    height: 500px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

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

/* Product Information Tabs */
.product-info-section {
    background-color: var(--white);
    padding: 5rem 0;
}

.product-section-block {
    background-color: var(--white);
    border: 1px solid #E0E0E0;
    padding: 3rem;
    margin-bottom: 3rem;
}

.product-section-block:last-child {
    margin-bottom: 0;
}

.section-block-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 3px solid var(--accent-gold);
}

.section-block-content {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--dark-gray);
}

.section-block-content p {
    margin-bottom: 1.5rem;
}

.section-block-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-top: 2.5rem;
    margin-bottom: 1.25rem;
}

.section-block-content ul {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.section-block-content ul li {
    margin-bottom: 1rem;
}

.section-block-content strong {
    color: var(--primary-blue);
}

/* Product Specs Table */
.product-specs-table {
    margin-top: 2rem;
    border: 1px solid #E0E0E0;
}

.product-specs-table thead {
    background-color: var(--primary-blue);
    color: var(--white);
}

.product-specs-table thead th {
    font-weight: 600;
    font-size: 1.0625rem;
    padding: 1rem;
    border: none;
}

.product-specs-table tbody td {
    padding: 1rem;
    font-size: 1rem;
    vertical-align: middle;
}

.product-specs-table tbody tr:hover {
    background-color: #F8F9FA;
}

.specs-note {
    margin-top: 2rem;
}

/* Applications Content */
.applications-content {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--dark-gray);
}

.applications-list {
    margin: 2rem 0;
    padding-left: 2rem;
}

.applications-list li {
    margin-bottom: 1.5rem;
}

.applications-list strong {
    color: var(--primary-blue);
}

.applications-cta {
    text-align: center;
    padding: 2rem;
    background-color: var(--light-gray);
    border-left: 4px solid var(--accent-gold);
}

/* Product Detail Page Responsive */
@media (max-width: 991px) {
    .product-title {
        font-size: 2rem;
    }

    .product-tagline {
        font-size: 1.125rem;
    }

    .product-summary {
        font-size: 1rem;
    }

    .product-main-image {
        height: 400px;
        margin-top: 2rem;
    }

    .product-info {
        padding-right: 0;
    }

    .product-info-section {
        padding: 3rem 0;
    }

    .product-section-block {
        padding: 2.5rem 2rem;
        margin-bottom: 2.5rem;
    }

    .section-block-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 767px) {
    .product-hero-section {
        padding: 1.5rem 0 2.5rem;
    }

    /* 隐藏面包屑导航 - 避免与logo重叠 */
    .product-breadcrumb {
        display: none;
    }

    /* 产品Hero区域布局调整 */
    .product-hero-section .row {
        display: flex;
        flex-direction: column-reverse;
    }

    /* 产品信息优化 */
    .product-info {
        padding-right: 0;
        margin-bottom: 1.5rem;
        order: 2;
    }

    .product-title {
        font-size: 1.5rem;
        line-height: 1.3;
        margin-bottom: 0.75rem;
    }

    .product-tagline {
        font-size: 1rem;
        line-height: 1.5;
        margin-bottom: 1rem;
    }

    .product-summary {
        font-size: 0.875rem;
        line-height: 1.6;
        margin-bottom: 1rem;
    }

    .product-summary p {
        margin-bottom: 0.75rem;
    }

    /* 按钮优化 - 更大更易点击 */
    .product-cta {
        margin-top: 1rem;
    }

    .btn-product-quote {
        width: 100%;
        padding: 1rem 2rem;
        font-size: 1rem;
        text-align: center;
    }

    /* 产品图片优化 - 显示在上方 */
    .product-main-image {
        height: 250px;
        margin-bottom: 1.5rem;
        border-radius: 8px;
        overflow: hidden;
        order: 1;
        background-color: #f8f9fa;
    }

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

    /* 产品信息区块优化 */
    .product-info-section {
        padding: 2rem 0;
    }

    .product-section-block {
        padding: 1.5rem 1rem;
        margin-bottom: 1.5rem;
        border-radius: 8px;
    }

    .section-block-title {
        font-size: 1.25rem;
        margin-bottom: 1.25rem;
        padding-bottom: 0.75rem;
    }

    .section-block-content {
        font-size: 0.9375rem;
        line-height: 1.7;
    }

    .section-block-content p {
        margin-bottom: 1rem;
    }

    .section-block-content ul {
        padding-left: 1.5rem;
        margin: 1rem 0;
    }

    .section-block-content ul li {
        margin-bottom: 0.75rem;
    }

    /* 表格优化 */
    .product-specs-table {
        font-size: 0.875rem;
    }

    .product-specs-table thead th {
        padding: 0.75rem 0.5rem;
        font-size: 0.9375rem;
    }

    .product-specs-table tbody td {
        padding: 0.75rem 0.5rem;
        font-size: 0.875rem;
    }

    /* 两列布局优化 */
    .product-section-block .row.g-3 {
        margin-left: -0.5rem;
        margin-right: -0.5rem;
    }

    .product-section-block .row.g-3>[class*="col-"] {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
        margin-bottom: 1rem;
    }
}

/* ==================== News Center Page ==================== */

/* News Hero Section */
.news-hero {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
}

.news-hero-image {
    width: 100%;
    height: 100%;
}

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

.news-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 42, 78, 0.85) 0%, rgba(10, 42, 78, 0.6) 100%);
}

.news-hero-content {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    transform: translateY(-50%);
    text-align: center;
    z-index: 2;
}

.news-hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
    letter-spacing: 2px;
}

.news-hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--white);
    margin-bottom: 2rem;
    opacity: 0.95;
}

.news-hero-divider {
    width: 120px;
    height: 3px;
    background-color: var(--accent-gold);
    margin: 0 auto;
}

/* News List Section */
.news-list-section {
    background-color: var(--white);
    padding: 100px 0 80px;
}

.news-list-item {
    background-color: var(--white);
    border: 1px solid #E0E0E0;
    padding: 2.5rem;
    margin-bottom: 2.5rem;
    transition: var(--transition-smooth);
}

.news-list-item:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.news-list-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
}

.news-list-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.news-list-item:hover .news-list-image img {
    transform: scale(1.08);
}

.news-list-content {
    padding-left: 2rem;
}

.news-list-badge {
    display: inline-block;
    background-color: var(--accent-gold);
    color: var(--primary-blue);
    font-size: 0.875rem;
    font-weight: 700;
    padding: 0.5rem 1rem;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.news-list-date {
    font-size: 0.9375rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.news-list-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    line-height: 1.4;
    transition: var(--transition-smooth);
}

.news-list-item:hover .news-list-title {
    color: var(--accent-gold);
}

.news-list-excerpt {
    font-size: 1rem;
    color: var(--dark-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.news-list-link {
    display: inline-block;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.news-list-link:hover {
    color: var(--accent-gold);
    transform: translateX(8px);
}

/* News Grid Section */
.news-grid {
    background-color: var(--light-gray);
    padding: 6rem 0;
}

.news-card {
    background-color: var(--white);
    overflow: hidden;
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(10, 42, 78, 0.15);
}

.news-card-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.news-card:hover .news-card-image img {
    transform: scale(1.1);
}

.news-card-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-card-date {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.news-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1.5;
    margin-bottom: 1rem;
    transition: var(--transition-smooth);
}

.news-card:hover .news-card-title {
    color: var(--accent-gold);
}

.news-card-excerpt {
    font-size: 1rem;
    color: var(--text-primary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    flex: 1;
}

.news-card-link {
    font-size: 1rem;
    font-weight: 500;
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-smooth);
    display: inline-block;
}

.news-card-link:hover {
    color: var(--accent-gold);
    transform: translateX(3px);
}

/* Pagination */
.news-pagination {
    margin-top: 4rem;
}

.pagination {
    gap: 0.5rem;
}

.page-link {
    border-radius: 0 !important;
    border: 1px solid var(--primary-blue);
    background-color: var(--white);
    color: var(--primary-blue);
    font-weight: 500;
    padding: 0.75rem 1.25rem;
    transition: var(--transition-smooth);
}

.page-link:hover {
    background-color: var(--accent-gold);
    color: var(--primary-blue);
    border-color: var(--accent-gold);
}

.page-item.active .page-link {
    background-color: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.page-item.disabled .page-link {
    background-color: var(--light-gray);
    color: var(--text-light);
    border-color: var(--light-gray);
}

/* News Center Page - Responsive Styles */
@media (max-width: 991px) {
    .news-hero {
        height: 400px;
    }

    .news-hero-title {
        font-size: 2.5rem;
    }

    .news-hero-subtitle {
        font-size: 1.25rem;
    }

    .news-list-section {
        padding: 60px 0 50px;
    }

    .news-list-item {
        padding: 2rem;
        margin-bottom: 2rem;
    }

    .news-list-image {
        height: 240px;
    }

    .news-list-content {
        padding-left: 1.5rem;
    }

    .news-list-title {
        font-size: 1.375rem;
    }
}

@media (max-width: 767px) {
    .news-hero {
        height: 350px;
    }

    .news-hero-title {
        font-size: 1.875rem;
    }

    .news-hero-subtitle {
        font-size: 1.0625rem;
    }

    .news-hero-divider {
        width: 80px;
    }

    .news-list-section {
        padding: 40px 0 30px;
    }

    .news-list-item {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .news-list-image {
        height: 200px;
        margin-bottom: 1.5rem;
    }

    .news-list-content {
        padding-left: 0;
    }

    .news-list-title {
        font-size: 1.25rem;
    }

    .news-list-excerpt {
        font-size: 0.9375rem;
    }
}

/* ==================== News Detail Page ==================== */

/* Article Header Section */
.article-header {
    background-color: var(--primary-blue);
    padding: 3rem 0 2.5rem;
    width: 100%;
}

.article-breadcrumb {
    margin-bottom: 2rem;
}

.breadcrumb-link {
    color: var(--white);
    text-decoration: none;
    font-size: 0.9375rem;
    opacity: 0.9;
    transition: var(--transition-smooth);
    display: inline-block;
}

.breadcrumb-link:hover {
    opacity: 1;
    transform: translateX(-3px);
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.3;
    margin-bottom: 1.5rem;
}

.article-meta {
    color: var(--white);
    font-size: 1rem;
    opacity: 0.85;
    margin-bottom: 2rem;
}

.meta-separator {
    margin: 0 0.75rem;
}

.article-divider {
    width: 80px;
    height: 3px;
    background-color: var(--accent-gold);
    margin-top: 2rem;
}

/* Article Body Section */
.article-body {
    background-color: var(--white);
    padding: 4rem 0;
}

.article-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.article-featured-image {
    margin-bottom: 3rem;
}

.article-featured-image img {
    width: 100%;
    height: auto;
    display: block;
}

.article-featured-image figcaption {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-light);
    font-style: italic;
    margin-top: 1rem;
}

/* Article Content */
.article-content p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.article-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.article-content h3 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-top: 2.5rem;
    margin-bottom: 1.25rem;
    line-height: 1.4;
}

/* Article Image */
.article-image {
    margin: 3rem 0;
}

.article-image img {
    width: 100%;
    height: auto;
    display: block;
}

.article-image figcaption {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-light);
    font-style: italic;
    margin-top: 1rem;
}

/* Article Quote */
.article-quote {
    background-color: var(--light-gray);
    border-left: 4px solid var(--accent-gold);
    padding: 1.5rem 2rem;
    margin: 2.5rem 0;
    font-style: italic;
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--text-primary);
}

.article-quote cite {
    display: block;
    margin-top: 1rem;
    font-size: 0.9375rem;
    font-style: normal;
    font-weight: 500;
    color: var(--primary-blue);
}

/* Article Footer */
.article-footer {
    margin-top: 4rem;
}

.article-separator {
    border: none;
    border-top: 1px solid var(--primary-blue);
    margin-bottom: 2rem;
}

/* Social Share */
.article-share {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.share-label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

.share-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    transition: var(--transition-smooth);
}

.share-link img {
    width: 24px;
    height: 24px;
}

.share-link:hover {
    transform: scale(1.1);
}

/* Article Pagination */
.article-pagination {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    margin-top: 3rem;
}

.pagination-prev,
.pagination-next {
    flex: 1;
    text-decoration: none;
    padding: 1.5rem;
    background-color: var(--light-gray);
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.pagination-prev {
    justify-content: flex-start;
}

.pagination-next {
    justify-content: flex-end;
    text-align: right;
}

.pagination-prev:hover,
.pagination-next:hover {
    background-color: var(--accent-gold);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(10, 42, 78, 0.1);
}

.pagination-arrow {
    font-size: 1.5rem;
    color: var(--primary-blue);
    font-weight: 700;
}

.pagination-text {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.pagination-label {
    font-size: 0.875rem;
    color: var(--text-light);
}

.pagination-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--primary-blue);
}

/* Article CTA Section */
.article-cta {
    position: relative;
    width: 100%;
    padding: 5rem 0;
    overflow: hidden;
}

.article-cta .cta-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--primary-blue);
}

.article-cta .cta-texture {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/about/cta-texture.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.1;
}

.article-cta .cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 42, 78, 0.95) 0%, rgba(10, 42, 78, 0.85) 100%);
}

.article-cta .cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.article-cta .cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.article-cta .cta-subtitle {
    font-size: 1.25rem;
    color: var(--white);
    opacity: 0.95;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

/* News Detail Page - Responsive Styles */
@media (max-width: 991px) {
    .article-header {
        padding: 2.5rem 0 2rem;
    }

    .article-title {
        font-size: 2rem;
    }

    .article-content p {
        font-size: 1.0625rem;
    }

    .article-content h2 {
        font-size: 1.5rem;
    }

    .article-cta .cta-title {
        font-size: 2rem;
    }

    .article-cta .cta-subtitle {
        font-size: 1.125rem;
    }
}

@media (max-width: 767px) {
    .article-header {
        padding: 2rem 0 1.5rem;
    }

    .article-title {
        font-size: 1.5rem;
    }

    .article-meta {
        font-size: 0.875rem;
    }

    .article-divider {
        width: 60px;
    }

    .article-body {
        padding: 3rem 0;
    }

    .article-container {
        padding: 0 1rem;
    }

    .article-featured-image {
        margin-bottom: 2rem;
    }

    .article-content p {
        font-size: 1rem;
    }

    .article-content h2 {
        font-size: 1.375rem;
        margin-top: 2rem;
    }

    .article-content h3 {
        font-size: 1.25rem;
    }

    .article-quote {
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }

    .article-pagination {
        flex-direction: column;
        gap: 1rem;
    }

    .pagination-prev,
    .pagination-next {
        padding: 1rem;
    }

    .pagination-title {
        font-size: 0.9375rem;
    }

    .article-cta {
        padding: 3rem 0;
    }

    .article-cta .cta-title {
        font-size: 1.75rem;
    }

    .article-cta .cta-subtitle {
        font-size: 1rem;
    }
}

/* ==================== Cases Page ==================== */

/* Cases Hero Section */
.cases-hero {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
}

.cases-hero-image {
    width: 100%;
    height: 100%;
}

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

.cases-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 42, 78, 0.85) 0%, rgba(10, 42, 78, 0.6) 100%);
}

.cases-hero-content {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    transform: translateY(-50%);
    text-align: center;
    z-index: 2;
}

.cases-hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
    letter-spacing: 2px;
}

.cases-hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--white);
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cases-hero-divider {
    width: 120px;
    height: 3px;
    background-color: var(--accent-gold);
    margin: 0 auto;
}

/* Case Category Navigation */
.case-category-nav {
    background-color: var(--light-gray);
    padding: 1.5rem 0;
    position: sticky;
    top: 80px;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(10, 42, 78, 0.1);
}

.category-nav-list {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem 2rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.category-nav-link {
    font-size: 1.0625rem;
    font-weight: 500;
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-smooth);
    padding: 0.5rem 0;
    position: relative;
    white-space: nowrap;
}

.category-nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-gold);
    transition: var(--transition-smooth);
}

.category-nav-link:hover,
.category-nav-link.active {
    color: var(--accent-gold);
}

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

.category-nav-separator {
    color: var(--primary-blue);
    opacity: 0.3;
}

/* Case List */
.case-list {
    width: 100%;
}

.case-item {
    width: 100%;
}

/* Case Odd (奇数: 图左文右, 白色背景) */
.case-odd {
    background-color: var(--white);
}

/* Case Even (偶数: 文左图右, 灰色背景) */
.case-even {
    background-color: var(--light-gray);
}

.case-image-wrapper {
    width: 100%;
    height: 600px;
    overflow: hidden;
}

.case-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.case-item:hover .case-image-wrapper img {
    transform: scale(1.05);
}

.case-content-wrapper {
    padding: 4rem 3rem;
    height: 600px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.case-category {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--accent-gold);
    letter-spacing: 1px;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.case-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1.3;
    margin-bottom: 2rem;
}

.case-section {
    margin-bottom: 1.5rem;
}

.case-section:last-child {
    margin-bottom: 0;
}

.case-section-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 0.75rem;
}

.case-section-text {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-primary);
}

/* Cases Page - Responsive Styles */
@media (max-width: 991px) {
    .cases-hero {
        height: 400px;
    }

    .cases-hero-title {
        font-size: 2.5rem;
    }

    .cases-hero-subtitle {
        font-size: 1.25rem;
    }

    .case-category-nav {
        top: 70px;
    }

    .case-image-wrapper {
        height: 400px;
    }

    .case-content-wrapper {
        height: auto;
        padding: 3rem 2rem;
    }

    .case-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 767px) {
    .cases-hero {
        height: 350px;
    }

    .cases-hero-title {
        font-size: 1.875rem;
    }

    .cases-hero-subtitle {
        font-size: 1.0625rem;
    }

    .cases-hero-divider {
        width: 50px;
        height: 2px;
    }

    .case-category-nav {
        top: 60px;
        padding: 1rem 0;
        overflow-x: auto;
    }

    .category-nav-list {
        flex-wrap: nowrap;
        gap: 0.5rem 1rem;
        justify-content: flex-start;
        padding: 0 1rem;
    }

    .category-nav-separator {
        display: inline-block;
    }

    .case-image-wrapper {
        height: 300px;
    }

    .case-content-wrapper {
        padding: 2rem 1.5rem;
    }

    .case-title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .case-section-title {
        font-size: 1rem;
    }

    .case-section-text {
        font-size: 0.9375rem;
    }
}

/* ==================== Contact Page ==================== */

/* Contact Hero Section */
.contact-hero {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
}

.contact-hero-image {
    width: 100%;
    height: 100%;
}

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

.contact-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 42, 78, 0.85) 0%, rgba(10, 42, 78, 0.6) 100%);
}

.contact-hero-content {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    transform: translateY(-50%);
    text-align: center;
    z-index: 2;
}

.contact-hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
    letter-spacing: 2px;
}

.contact-hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--white);
    margin-bottom: 2rem;
    opacity: 0.95;
}

.contact-hero-divider {
    width: 120px;
    height: 3px;
    background-color: var(--accent-gold);
    margin: 0 auto;
}

/* Communication Hub Section */
.communication-hub {
    width: 100%;
}

/* Left Column: Voice & Location */
.hub-left-col {
    background-color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 4rem;
}

.hub-content-wrapper {
    max-width: 500px;
    width: 100%;
}

.hub-section {
    margin-bottom: 4rem;
}

.hub-section:last-child {
    margin-bottom: 0;
}

.hub-section-label {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
}

.hub-phone-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-blue);
    text-decoration: none;
    display: block;
    line-height: 1.2;
    margin-bottom: 1rem;
    transition: var(--transition-smooth);
}

.hub-phone-number:hover {
    color: var(--accent-gold);
}

.hub-divider {
    width: 60px;
    height: 1px;
    background-color: #CCCCCC;
    margin: 1.5rem 0;
}

.hub-fax-text {
    font-size: 1rem;
    color: var(--text-light);
    margin: 0;
}

.hub-address-text {
    font-size: 1.5rem;
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
}

.hub-hours-text {
    font-size: 1.5rem;
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
}

/* Right Column: WeChat Connection */
.hub-right-col {
    background-color: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 4rem;
}

.hub-wechat-wrapper {
    width: 100%;
    max-width: 450px;
}

.wechat-card {
    background-color: var(--white);
    padding: 3rem 2.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: var(--transition-smooth);
}

.wechat-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.wechat-card:hover .wechat-qr-image {
    border-color: var(--accent-gold);
}

.wechat-logo {
    margin-bottom: 2rem;
}

.wechat-logo img {
    width: 48px;
    height: 48px;
}

.wechat-qr-container {
    margin-bottom: 2rem;
}

.wechat-qr-image {
    width: 240px;
    height: 240px;
    display: block;
    margin: 0 auto;
    border: 4px solid transparent;
    transition: var(--transition-smooth);
}

.wechat-text {
    text-align: center;
}

.wechat-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 0.75rem;
}

.wechat-subtitle {
    font-size: 1rem;
    color: var(--text-light);
    margin: 0;
    line-height: 1.6;
}

/* Partnership & Careers Section */
.contact-partnership {
    background-color: var(--primary-blue);
    padding: 5rem 0;
}

.partnership-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.partnership-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.partnership-desc {
    font-size: 1.25rem;
    color: var(--white);
    opacity: 0.9;
    margin-bottom: 1rem;
    line-height: 1.7;
}

.partnership-contact {
    font-size: 1.125rem;
    color: var(--accent-gold);
    font-weight: 500;
    margin: 0;
}

/* Contact Page - Responsive Styles */
@media (max-width: 991px) {
    .contact-hero {
        height: 400px;
    }

    .contact-hero-title {
        font-size: 2.5rem;
    }

    .contact-hero-subtitle {
        font-size: 1.25rem;
    }

    .hub-left-col,
    .hub-right-col {
        padding: 4rem 3rem;
    }

    .hub-phone-number {
        font-size: 2.5rem;
    }

    .hub-address-text,
    .hub-hours-text {
        font-size: 1.25rem;
    }

    .wechat-qr-image {
        width: 200px;
        height: 200px;
    }

    .partnership-title {
        font-size: 1.75rem;
    }

    .partnership-desc {
        font-size: 1.125rem;
    }
}

@media (max-width: 767px) {
    .contact-hero {
        height: 350px;
    }

    .contact-hero-title {
        font-size: 1.875rem;
    }

    .contact-hero-subtitle {
        font-size: 1.0625rem;
    }

    .contact-hero-divider {
        width: 80px;
    }

    .hub-left-col,
    .hub-right-col {
        padding: 3rem 2rem;
    }

    .hub-section {
        margin-bottom: 3rem;
    }

    .hub-phone-number {
        font-size: 2rem;
    }

    .hub-address-text,
    .hub-hours-text {
        font-size: 1.125rem;
    }

    .wechat-card {
        padding: 2.5rem 2rem;
    }

    .wechat-qr-image {
        width: 180px;
        height: 180px;
    }

    .wechat-title {
        font-size: 1.25rem;
    }

    .wechat-subtitle {
        font-size: 0.9375rem;
    }

    .contact-partnership {
        padding: 3rem 0;
    }

    .partnership-title {
        font-size: 1.5rem;
    }

    .partnership-desc {
        font-size: 1rem;
    }

    .partnership-contact {
        font-size: 1rem;
    }
}

/* ==================== Print Styles ==================== */
@media print {

    .fixed-contact,
    #main-header,
    #main-footer {
        display: none;
    }
}

/* ==================== Mosaic Gallery (New Case Layout) ==================== */  .mosaic-grid  {
          display:  flex;
          width:  100%;
          height:  600px;
     /* Fixed height for desktop impact */  
}

    .mosaic-col-large  {
          width:  66.666%;
          height:  100%;
          position:  relative;
          overflow:  hidden;
      
}

    .mosaic-col-small  {
          width:  33.333%;
          height:  100%;
          display:  flex;
          flex-direction:  column;
      
}

    .mosaic-item  {
          position:  relative;
          width:  100%;
          overflow:  hidden;
          cursor:  pointer;
          display:  block;
     /* Ensure anchor tag works as block */  
}

    /* Heights for small column items */  .mosaic-col-small .mosaic-item  {
          height:  50%;
          border-bottom:  1px solid rgba(255,  255,  255,  0.1);
      
}

    .mosaic-col-small .mosaic-item:last-child  {
          border-bottom:  none;
      
}

    .mosaic-img  {
          width:  100%;
          height:  100%;
          object-fit:  cover;
          transition:  transform 0.8s cubic-bezier(0.25,  0.46,  0.45,  0.94);
      
}

    .mosaic-overlay  {
          position:  absolute;
          top:  0;
          left:  0;
          width:  100%;
          height:  100%;
          background:  linear-gradient(to top,  rgba(10,  42,  78,  0.9) 0%,  rgba(10,  42,  78,  0.2) 100%);
          display:  flex;
          flex-direction:  column;
          justify-content:  flex-end;
          padding:  3rem;
          transition:  all 0.4s ease;
      
}

    .mosaic-col-small .mosaic-overlay  {
          padding:  2.5rem;
      
}

    /* Hover Effects */  .mosaic-item:hover .mosaic-img  {
          transform:  scale(1.08);
      
}

    .mosaic-item:hover .mosaic-overlay  {
          background:  linear-gradient(to top,  rgba(10,  42,  78,  0.95) 0%,  rgba(10,  42,  78,  0.4) 100%);
      
}

    /* Content Styling */  .mosaic-category  {
          font-size:  0.875rem;
          font-weight:  700;
          color:  var(--accent-gold);
          text-transform:  uppercase;
          letter-spacing:  2px;
          margin-bottom:  1rem;
          opacity:  0;
          transform:  translateY(20px);
          transition:  all 0.4s ease 0.1s;
      
}

    .mosaic-title  {
          font-size:  2rem;
          font-weight:  700;
          color:  var(--white);
          margin-bottom:  1rem;
          line-height:  1.3;
      
}

    .mosaic-desc  {
          font-size:  1rem;
          color:  rgba(255,  255,  255,  0.9);
          line-height:  1.6;
          max-width:  600px;
          margin-bottom:  0;
          max-height:  0;
     /* Hidden by default */      overflow:  hidden;
          opacity:  0;
          transition:  all 0.5s ease;
      
}

    .mosaic-col-small .mosaic-title  {
          font-size:  1.5rem;
      
}

    /* Reveal on Hover */  .mosaic-item:hover .mosaic-category  {
          opacity:  1;
          transform:  translateY(0);
      
}

    .mosaic-item:hover .mosaic-desc  {
          max-height:  100px;
     /* Approximate height to reveal */      margin-bottom:  1.5rem;
          opacity:  1;
      
}

    .mosaic-link  {
          color:  var(--white);
          font-weight:  600;
          text-decoration:  none;
          display:  inline-flex;
          align-items:  center;
          opacity:  0.8;
          transition:  var(--transition-smooth);
          margin-top:  1rem;
          font-size:  0.9375rem;
      
}

    .mosaic-link:hover  {
          color:  var(--accent-gold);
          opacity:  1;
          transform:  translateX(5px);
      
}

    /* Responsive for Mosaic */  @media (max-width: 991px)  {
          .mosaic-grid  {
                  height:  auto;
                  flex-direction:  column;
              
    }

            .mosaic-col-large,
          .mosaic-col-small  {
                  width:  100%;
                  height:  auto;
              
    }

            .mosaic-col-large .mosaic-item  {
                  height:  400px;
              
    }

            .mosaic-col-small .mosaic-item  {
                  height:  300px;
              
    }

                .mosaic-col-small .mosaic-item:first-child  {
                  border-bottom:  1px solid var(--white);
         /* Visual separator on mobile */      
    }

            .mosaic-category  {
                  opacity:  1;
                  transform:  translateY(0);
                  margin-bottom:  0.5rem;
              
    }

            .mosaic-desc  {
                  max-height:  none;
                  opacity:  1;
                  margin-bottom:  1rem;
              
    }

                .mosaic-overlay  {
                  padding:  2rem;
                  background:  linear-gradient(to top,  rgba(10,  42,  78,  0.9) 0%,  rgba(10,  42,  78,  0.3) 100%);
              
    }

                .mosaic-title  {
                  font-size:  1.75rem;
                  margin-bottom:  0.5rem;
              
    }

      
}