/* 
   Anhui Mingte Electric Group - Grand Industrial Corporate Style
   Theme: Authoritative, Minimalist, Grand, Professional
   Palette: Corporate Blue (#009FE8), Corporate Green (#53B359), Pure White (#FFFFFF)
   No Emojis. Professional Typography.
*/

:root {
    --primary-color: #009FE8;
    --secondary-color: #53B359;
    --accent-color: #009FE8;
    --text-main: #1a1a1a;
    --text-dark: #1a1a1a;
    --text-muted: #4d4d4d;
    --text-light: #757575;
    --bg-white: #ffffff;
    --bg-soft: #f5f7f9;
    --border-color: #e0e4e8;
    --max-width: 1400px;
    --transition-base: all 0.3s ease-in-out;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', "Source Han Sans CN", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text-main);
    background-color: var(--bg-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

ul {
    list-style: none;
}

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--primary-color);
}

.gradient-text {
    background: linear-gradient(to right, #009FE8, #53B359);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.section-header h2 {
    position: relative;
    padding-bottom: 20px;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, #009FE8, #53B359);
    border-radius: 2px;
}

/* Header & Navigation */
header {
    background: var(--bg-white);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-base);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
}

.logo img {
    height: 55px;
}

.nav-main {
    display: flex;
    gap: 30px;
    height: 100%;
}

.nav-item {
    display: flex;
    align-items: center;
    position: relative;
    font-size: 18px;
    font-weight: 400;
    color: #333;
    padding: 0 2px;
    letter-spacing: 1px;
}

.nav-item:hover, .nav-item.active {
    color: #009FE8;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(to right, #009FE8, #53B359);
    transition: var(--transition-base);
}

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

.header-right {
    display: flex;
    align-items: center;
}

.menu-toggle {
    display: none;
}

.mobile-nav {
    display: none;
}

.phone-box {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 18px;
}

.btn-gradient {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    background: linear-gradient(to right, #009FE8, #53B359);
    color: #fff !important;
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition-base);
    box-shadow: 0 10px 20px rgba(0, 159, 232, 0.15);
}

.btn-gradient:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 159, 232, 0.25);
    opacity: 0.95;
}

.btn-lang {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 34px;
    background: linear-gradient(to right, #009FE8, #53B359);
    color: #fff;
    font-size: 16px;
    font-weight: 500;
    border-radius: 50px;
    transition: var(--transition-base);
}


.btn-lang:hover {
    box-shadow: 0 4px 15px rgba(0, 159, 232, 0.3);
    transform: translateY(-1px);
}

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

.btn-contact {
    padding: 12px 32px;
    background: linear-gradient(to right, #009FE8, #53B359);
    color: var(--bg-white);
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn-contact:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 159, 232, 0.3);
}

/* Hero Section - Slideshow */
.hero {
    height: 700px;
    position: relative;
    overflow: hidden;
}

.hero-slides {
    width: 100%;
    height: 100%;
    position: relative;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease-in-out, visibility 1s;
    z-index: 1;
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

.hero-content {
    max-width: 800px;
    transform: translateY(30px);
    transition: transform 1s ease-out 0.5s, opacity 1s ease-out 0.5s;
    opacity: 0;
}

.hero-slide.active .hero-content {
    transform: translateY(0);
    opacity: 1;
}

.hero-content h1 {
    font-size: 64px;
    margin-bottom: 24px;
    color: var(--primary-color);
    line-height: 1.1;
}

.hero-content p {
    font-size: 20px;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
}

/* Slide Navigation Dots */
.hero-nav {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 10;
}

.hero-dot {
    width: 12px;
    height: 12px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-base);
}

.hero-dot.active {
    background: linear-gradient(to right, #009FE8, #53B359);
    width: 30px;
    border: none;
    border-radius: 10px;
}

/* Stats Section */
.stats {
    background: var(--bg-soft);
    padding: 50px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.stat-card {
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    animation: statFadeIn 0.6s ease forwards;
}

.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.3s; }
.stat-card:nth-child(4) { animation-delay: 0.4s; }

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

.stat-number {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(to right, #009FE8, #53B359);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--primary-color);
    margin-bottom: 8px;
    display: block;
    min-height: 1.2em;
}

.stat-label {
    font-size: 16px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Section Common */
.section {
    padding: 120px 0;
}

.section-header {
    margin-bottom: 80px;
    text-align: center;
}

.section-header h2 {
    font-size: 42px;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto;
}

/* Product Center - High-end Design */
#products {
    background-color: #f8fafc;
    position: relative;
    overflow: hidden;
}

#products::before {
    content: 'PRODUCTS';
    position: absolute;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 15vw;
    font-weight: 900;
    color: rgba(0, 159, 232, 0.02);
    white-space: nowrap;
    z-index: 0;
    pointer-events: none;
}

.product-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    position: relative;
    z-index: 1;
}

.filter-item {
    padding: 10px 35px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 15px;
    font-weight: 500;
    border-radius: 0 18px 0 18px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.filter-item:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.filter-item.active {
    background: linear-gradient(135deg, #009FE8 0%, #53B359 100%);
    border: none;
    color: var(--bg-white);
    box-shadow: 0 10px 20px rgba(0, 159, 232, 0.2);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 40px;
    position: relative;
    z-index: 1;
}

.product-card {
    background: var(--bg-white);
    border-radius: 12px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

.product-card::before {
    content: attr(data-number);
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 48px;
    font-weight: 900;
    color: rgba(0, 159, 232, 0.05);
    line-height: 1;
    transition: all 0.5s ease;
}

.product-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 50px rgba(0, 159, 232, 0.12);
}

.product-card:hover::before {
    color: rgba(0, 159, 232, 0.1);
    transform: scale(1.1);
}

.product-image {
    width: 100%;
    height: 280px;
    background: linear-gradient(135deg, #fcfcfc 0%, #f5f7fa 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    /* padding: 40px; */
    overflow: hidden;
    position: relative;
}

.product-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 159, 232, 0.02) 100%);
}

.product-image img {
    /* max-width: 85%;
    max-height: 85%;
    object-fit: contain; */
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.05));
    z-index: 1;
}

.product-card:hover .product-image img {
    transform: scale(1.1) rotate(2deg);
}

.product-info {
    padding: 35px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-white);
    position: relative;
    z-index: 2;
}

.product-info h3 {
    font-size: 22px;
    margin-bottom: 18px;
    color: var(--text-dark);
    font-weight: 700;
    transition: color 0.3s ease;
}

.product-card:hover .product-info h3 {
    color: var(--primary-color);
}

.product-info p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 25px;
    opacity: 0.8;
}

.product-more {
    margin-top: auto;
    font-size: 14px;
    font-weight: 700;
    color: var(--secondary-color);
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
}

.product-more svg {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.product-card:hover .product-more {
    gap: 18px;
}

.product-card:hover .product-more svg {
    transform: translateX(5px);
}

/* Business Layout - Deprecated or renamed */
.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

/* About Section - Enhanced Group Style */
.about-wrap {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 100px;
    align-items: flex-start;
}

.about-text {
    position: relative;
}

.about-text h3 {
    font-size: 36px;
    margin-bottom: 30px;
    line-height: 1.3;
}

.about-text p {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 25px;
    text-align: justify;
    line-height: 1.8;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-top: 40px;
}

.highlight-item {
    padding: 25px;
    background: var(--bg-soft);
    border-left: 4px solid #009FE8;
    transition: var(--transition-base);
}

.highlight-item:hover {
    background: var(--bg-white);
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transform: translateY(-5px);
}

.highlight-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.highlight-item p {
    font-size: 13px;
    margin-bottom: 0;
    color: var(--text-light);
}

.about-visual {
    position: relative;
}

.about-visual::before {
    content: 'MINGTE';
    position: absolute;
    top: 0;
    right: -20px;
    font-size: 120px;
    font-weight: 900;
    color: rgba(0, 159, 232, 0.03);
    z-index: 0;
    line-height: 1;
}

/* About Section - Video Display */
.video-container {
    position: relative;
    z-index: 1;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0,0,0,0.15);
    background: #000;
}

.video-container::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 8px solid rgba(255, 255, 255, 0.05); /* Inner frame effect */
    pointer-events: none;
    z-index: 2;
    border-radius: 8px;
}

.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay-frame {
    position: absolute;
    top: -15px;
    left: -15px;
    right: -15px;
    bottom: -15px;
    z-index: 0;
    pointer-events: none;
}

.video-overlay-frame::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 80px;
    height: 80px;
    border-top: 4px solid #009FE8;
    border-left: 4px solid #009FE8;
}

.video-overlay-frame::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 80px;
    height: 80px;
    border-bottom: 4px solid #53B359;
    border-right: 4px solid #53B359;
}

/* Innovation & Tech */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.tech-item {
    display: flex;
    gap: 24px;
    padding: 40px;
    background: var(--bg-soft);
}

.tech-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #009FE8, #53B359);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border-radius: 4px;
}

.tech-icon svg {
    width: 32px;
    height: 32px;
    fill: var(--bg-white);
}

.tech-content h4 {
    font-size: 20px;
    margin-bottom: 12px;
}

.tech-content p {
    font-size: 15px;
    color: var(--text-muted);
}

/* News Section */
#news {
    background: var(--bg-white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.news-card {
    display: flex;
    flex-direction: column;
    transition: var(--transition-base);
}

.news-image {
    width: 100%;
    height: 240px;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 25px;
    position: relative;
}

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

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

.news-date {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--primary-color);
    color: var(--bg-white);
    padding: 8px 15px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 700;
    z-index: 1;
}

.news-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.news-card:hover .news-content h3 {
    color: var(--primary-color);
}

.news-content p {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-link {
    font-size: 14px;
    font-weight: 700;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.news-link svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.news-card:hover .news-link svg {
    transform: translateX(5px);
}

/* Footer */
footer {
    background: #1a1a1a;
    color: #e0e0e0;
    padding: 100px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 60px;
    margin-bottom: 80px;
}

.footer-col h4 {
    color: var(--bg-white);
    font-size: 18px;
    margin-bottom: 32px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-logo {
    display: inline-block;
    margin-bottom: 20px;
}

.footer-logo img {
    height: 45px;
    filter: brightness(0) invert(1);
}

.footer-col ul li {
    margin-bottom: 16px;
}

.footer-col ul a {
    color: #a0a0a0;
    font-size: 15px;
}

.footer-col ul a:hover {
    color: var(--bg-white);
    padding-left: 8px;
}

.footer-contact p {
    font-size: 15px;
    margin-bottom: 5px;
    color: #a0a0a0;
}

.footer-qrcode {
    margin-top: 20px;
}

.footer-qrcode img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 4px;
    background: #fff;
    padding: 4px;
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid #333;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
    font-size: 14px;
    color: #757575;
}

/* Subpage Styles */
.sub-banner {
    height: 400px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--bg-white);
    position: relative;
}

.sub-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
}

.sub-banner-content {
    position: relative;
    z-index: 1;
}

.sub-banner h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
}

.breadcrumb {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

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

.breadcrumb span {
    margin: 0 10px;
}

.page-content {
    padding: 100px 0;
}

/* Sidebar Layout */
.page-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 60px;
}

.sidebar {
    position: sticky;
    top: 120px;
}

.sidebar-box {
    background: var(--bg-soft);
    padding: 30px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.sidebar-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--primary-color);
    color: var(--text-dark);
}

.sidebar-nav li {
    margin-bottom: 15px;
}

.sidebar-nav a {
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.3s ease;
    display: block;
}

.sidebar-nav a:hover, .sidebar-nav a.active {
    color: var(--primary-color);
    padding-left: 10px;
}

/* News List */
.news-list-item {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 40px;
    margin-bottom: 50px;
    padding-bottom: 50px;
    border-bottom: 1px solid var(--border-color);
}

.news-list-img {
    height: 180px;
    border-radius: 8px;
    overflow: hidden;
}

.news-list-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-list-item:hover .news-list-img img {
    transform: scale(1.1);
}

.news-list-info h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.news-list-info h3 a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-list-info h3 a:hover {
    color: var(--primary-color);
}

.news-list-meta {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
}

.news-list-info .news-link {
    margin-top: 15px;
}

/* Article Detail */
.article-header {
    text-align: center;
    margin-bottom: 60px;
    z-index: 0;
}

.article-header h1 {
    font-size: 36px;
    margin-bottom: 20px;
}

.article-body {
    line-height: 2;
    font-size: 16px;
    color: var(--text-muted);
}

.article-body img {
    max-width: 100%;
    height: auto;
    margin: 30px 0;
    border-radius: 8px;
}

/* Download Center - Precise Image Restoration */
.download-search-wrap {
    max-width: 600px;
    margin: 0 auto 80px;
}

.download-search-form {
    display: flex;
    height: 50px;
    border: 1px solid var(--primary-color);
    border-radius: 0;
    overflow: hidden;
    background: #fff;
}

.download-search-form:focus-within {
    box-shadow: 0 0 10px rgba(0, 159, 232, 0.1);
}

.search-input {
    flex: 1;
    padding: 0 20px;
    border: none;
    outline: none;
    font-size: 14px;
    color: #666;
}

.search-btn {
    background: var(--primary-color);
    color: var(--bg-white);
    padding: 0 50px;
    border: none;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: background 0.3s ease;
    border-radius: 40px 0 0 0;
}

/* Sidebar - Minimalist Style from Image */
.sidebar-box {
    background: transparent;
    padding: 0;
    border-radius: 0;
}

.sidebar-title {
    display: none; /* Hide title as per image */
}

.sidebar-nav {
    border-left: 1px solid #eee;
}

.sidebar-nav li {
    margin-bottom: 0;
}

.sidebar-nav a {
    padding: 15px 30px;
    font-size: 15px;
    color: #666;
    border-left: 3px solid transparent;
    margin-left: -1px;
    transition: all 0.3s ease;
}

.sidebar-nav a:hover, .sidebar-nav a.active {
    color: var(--text-dark);
    background: transparent;
    border-left-color: var(--primary-color);
    font-weight: 600;
    padding-left: 30px;
}

/* Table - Precise Restoration */
.download-table-wrap {
    width: 100%;
    background: #fff;
    border-radius: 0;
    box-shadow: none;
}

.page-layout .main-content {
    width: 100%;
    min-width: 0;
}

.page-layout .main-content .pagination {
    margin-top: 40px;
    text-align: left;
}

.download-table {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
}

.download-table th {
    background: var(--primary-color);
    color: #fff;
    padding: 15px 20px;
    font-weight: 500;
    font-size: 14px;
    text-align: center;
    border: none;
}

.download-table th:nth-child(1) { width: 38%; }
.download-table th:nth-child(2) { width: 10%; }
.download-table th:nth-child(3) { width: 10%; }
.download-table th:nth-child(4) { width: 12%; }
.download-table th:nth-child(5) { width: 20%; }
.download-table th:nth-child(6) { width: 10%; }

.download-table td {
    padding: 20px 15px;
    border-bottom: 1px solid #f5f5f5;
    font-size: 13px;
    color: #888;
    text-align: center;
    vertical-align: middle;
}

.download-table .file-name {
    text-align: left;
    color: #666 !important;
    font-weight: 400;
    word-break: break-all;
}

.file-ops {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.op-btn {
    color: var(--primary-color);
    opacity: 0.8;
}

.op-btn:hover {
    opacity: 1;
    transform: none;
}

.op-btn.download {
    color: var(--primary-color);
}

.op-btn svg {
    width: 20px;
    height: 20px;
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 80px;
}

.contact-info-item {
    margin-bottom: 40px;
}

.contact-info-item h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.contact-form .form-group {
    margin-bottom: 25px;
}

.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 15px 20px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-soft);
    font-family: inherit;
}

.contact-form textarea {
    height: 150px;
}

.contact-info .section-header {
    text-align: left;
    margin-bottom: 40px;
}

.contact-form-wrap .sidebar-box {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    padding: 50px;
}

.contact-form-wrap .sidebar-title {
    display: block;
    border-bottom: none;
    margin-bottom: 30px;
}

.contact-form .btn-gradient {
    width: 100%;
    justify-content: center;
    border: none;
    cursor: pointer;
}

.map-container {
    margin-top: 100px;
    height: 450px;
    background: var(--bg-soft);
    border-radius: 12px;
    overflow: hidden;
}

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

/* About Page Enhanced Styles */
.about-intro-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 100px;
}

.about-intro-content h2 {
    font-size: 36px;
    color: var(--text-dark);
    margin-bottom: 25px;
    position: relative;
    padding-left: 20px;
}

.about-intro-content h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 80%;
    background: var(--primary-color);
    border-radius: 3px;
}

.about-intro-image {
    position: relative;
}

.about-intro-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.about-intro-image::after {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNDAiIGhlaWdodD0iNDAiIHZpZXdCb3g9IjAgMCA0MCA0MCIgZmlsbD0ibm9uZSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48Y2lyY2xlIGN4PSIyIiBjeT0iMiIgcj0iMiIgZmlsbD0iIzAwOUZFOEExMCIvPjwvc3ZnPg==');
    z-index: -1;
}

/* Culture Section */
.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 80px 0;
}

.culture-card {
    background: var(--bg-white);
    padding: 50px 40px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    transition: all 0.4s ease;
    border-bottom: 4px solid transparent;
}

.culture-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 159, 232, 0.1);
    border-bottom-color: var(--primary-color);
}

.culture-icon {
    width: 80px;
    height: 80px;
    background: var(--bg-soft);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    color: var(--primary-color);
    transition: all 0.4s ease;
}

.culture-card:hover .culture-icon {
    background: var(--primary-color);
    color: var(--bg-white);
}

.culture-card h4 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

/* Timeline */
.history-timeline {
    position: relative;
    padding: 60px 0;
}

.history-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 60px;
    width: 100%;
}

.timeline-content {
    width: 45%;
    padding: 30px;
    background: var(--bg-soft);
    border-radius: 8px;
    position: relative;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-dot {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border: 4px solid var(--bg-white);
    border-radius: 50%;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: 0 0 0 4px rgba(0, 159, 232, 0.1);
}

.timeline-year {
    font-size: 24px;
    font-weight: 900;
    color: var(--primary-color);
    margin-bottom: 10px;
    display: block;
}

/* Honors Grid */
.honors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 50px;
}

.honor-item {
    background: var(--bg-white);
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-align: center;
    transition: all 0.3s ease;
}

.honor-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

.honor-item img {
    max-width: 100%;
    height: auto;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: all 0.3s ease;
}

.honor-item:hover img {
    filter: grayscale(0);
    opacity: 1;
}

.honor-item p {
    font-size: 14px;
    margin-top: 15px;
    color: var(--text-muted);
}

/* Back to Top */
.back-to-top {
    position: fixed;
    right: 30px;
    bottom: 30px;
    width: 50px;
    height: 50px;
    background: var(--bg-white);
    color: var(--primary-color);
    border: none;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(20px);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-color);
    color: var(--bg-white);
    box-shadow: 0 8px 25px rgba(0, 159, 232, 0.3);
    transform: translateY(-5px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}






/* Responsive */
@media (max-width: 1200px) {
    .container { padding: 0 30px; }
    .hero-content h1 { font-size: 52px; }
}

@media (max-width: 1024px) {
    .business-grid, .tech-grid { grid-template-columns: 1fr; }
    .about-wrap { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .header-inner { height: 60px; padding: 0 20px; }
    .logo img { height: 35px; }
    .nav-main { display: none; }
    .phone-box { display: none; }
    
    .menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 26px;
        height: 18px;
        background: none;
        border: none;
        cursor: pointer;
        padding: 0;
        z-index: 1001;
    }
    
    .menu-toggle span {
        display: block;
        width: 100%;
        height: 2px;
        background-color: var(--text-main);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        transform-origin: left center;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
        transform: scale(0);
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg);
    }
    
    .mobile-nav {
        display: block;
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--bg-white);
        z-index: 1000;
        transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        padding-top: 100px;
    }
    
    .mobile-nav.active {
        right: 0;
    }
    
    .mobile-nav-inner {
        padding: 0 40px;
    }
    
    .mobile-nav-item {
        display: block;
        font-size: 20px;
        font-weight: 600;
        color: var(--text-main);
        text-decoration: none;
        padding: 20px 0;
        border-bottom: 1px solid #f0f0f0;
        transform: translateX(50px);
        opacity: 0;
        transition: all 0.4s ease;
    }
    
    .mobile-nav.active .mobile-nav-item {
        transform: translateX(0);
        opacity: 1;
    }
    
    .mobile-nav.active .mobile-nav-item:nth-child(1) { transition-delay: 0.1s; }
    .mobile-nav.active .mobile-nav-item:nth-child(2) { transition-delay: 0.2s; }
    .mobile-nav.active .mobile-nav-item:nth-child(3) { transition-delay: 0.3s; }
    .mobile-nav.active .mobile-nav-item:nth-child(4) { transition-delay: 0.4s; }
    .mobile-nav.active .mobile-nav-item:nth-child(5) { transition-delay: 0.5s; }
    .mobile-nav.active .mobile-nav-item:nth-child(6) { transition-delay: 0.6s; }
    
    .mobile-nav-item.active {
        color: var(--primary-color);
    }
    
    .mobile-nav-contact {
        margin-top: 40px;
        padding-top: 40px;
        border-top: 2px solid var(--primary-color);
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.5s ease 0.7s;
    }
    
    .mobile-nav.active .mobile-nav-contact {
        opacity: 1;
        transform: translateY(0);
    }
    
    .mobile-nav-contact p {
        font-size: 14px;
        color: var(--text-muted);
        margin-bottom: 10px;
    }
    
    body.menu-open {
        overflow: hidden;
    }
    
    body.menu-open::after {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.5);
        z-index: 999;
        backdrop-filter: blur(3px);
    }

    .stats {
        padding: 32px 0;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px 16px;
    }

    .stat-number {
        font-size: 28px;
        font-weight: 700;
        margin-bottom: 4px;
        min-height: auto;
        line-height: 1.2;
    }

    .stat-label {
        font-size: 12px;
        letter-spacing: 0.5px;
        line-height: 1.4;
    }

    .footer-grid { grid-template-columns: 1fr; }
    .hero {
        height: clamp(240px, 42vw, 340px);
    }
    .hero-slide {
        background-size: contain;
        background-position: center center;
        background-color: var(--bg-soft);
    }
    .hero-nav {
        bottom: 16px;
        gap: 10px;
    }
    .hero-dot {
        width: 10px;
        height: 10px;
    }
    .hero-dot.active {
        width: 24px;
    }
    .hero-content h1 { font-size: 40px; }
    .product-filter { gap: 10px; margin-bottom: 30px; }
    .filter-item { padding: 8px 20px; font-size: 14px; }
    .section-header h2{
        font-size:25px;
    }
    .about-text h3{
        font-size: 22px;
    }

    /* About Page - Mobile */
    .page-content {
        padding: 60px 0;
        overflow-x: hidden;
    }

    .sub-banner {
        height: 220px;
    }

    .sub-banner h1 {
        font-size: 28px;
    }

    .about-intro-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-bottom: 60px;
    }

    .about-intro-content h2 {
        font-size: 24px;
        margin-bottom: 20px;
    }

    .about-intro-content p {
        font-size: 15px;
        line-height: 1.8;
    }

    .about-intro-image::after {
        display: none;
    }

    .culture-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin: 40px 0;
    }

    .culture-card {
        padding: 30px 24px;
    }

    .culture-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 20px;
    }

    .culture-card h4 {
        font-size: 18px;
    }

    .history-timeline {
        padding: 30px 0;
    }

    .history-timeline::before {
        left: 16px;
        transform: none;
    }

    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
        padding-left: 44px;
        margin-bottom: 30px;
    }

    .timeline-item:nth-child(even) {
        flex-direction: column;
    }

    .timeline-content {
        width: 100%;
        padding: 20px;
    }

    .timeline-dot {
        left: 16px;
        transform: translateX(-50%);
    }

    .timeline-year {
        font-size: 20px;
    }

    .honors-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-top: 30px;
    }

    .honor-item {
        padding: 16px;
    }

    /* Download Page - Mobile */
    .page-content .container {
        width: 100%;
        max-width: 100%;
        padding-left: 20px;
        padding-right: 20px;
        overflow-x: hidden;
    }

    .page-layout {
        display: flex;
        flex-direction: column;
        gap: 24px;
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }

    .page-layout > .sidebar,
    .page-layout > .main-content {
        width: 100%;
        max-width: 100%;
        min-width: 0;
        overflow: hidden;
    }

    .sidebar {
        position: static;
        top: auto;
    }

    .sidebar-box {
        width: 100%;
        max-width: 100%;
        min-width: 0;
        padding: 0;
        background: transparent;
        margin-bottom: 0;
        overflow: hidden;
    }

    .sidebar-nav {
        display: flex;
        flex-wrap: nowrap;
        width: 100%;
        max-width: 100%;
        min-width: 0;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-left: none;
        border-bottom: 1px solid #eee;
        scrollbar-width: none;
    }

    .sidebar-nav::-webkit-scrollbar {
        display: none;
    }

    .sidebar-nav li {
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .sidebar-nav a {
        padding: 12px 16px;
        font-size: 14px;
        white-space: nowrap;
        border-left: none !important;
        border-bottom: 3px solid transparent;
        margin-left: 0;
    }

    .sidebar-nav a:hover,
    .sidebar-nav a.active {
        border-left-color: transparent !important;
        border-bottom-color: var(--primary-color);
        padding-left: 16px;
        background: transparent;
    }

    .page-layout .main-content {
        width: 100%;
        max-width: 100%;
        min-width: 0;
        overflow: hidden;
    }

    .page-layout .main-content .pagination {
        max-width: 100%;
        overflow-x: auto;
        margin-top: 24px !important;
        text-align: center !important;
    }

    .download-table-wrap {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
    }

    .download-table {
        display: block;
        width: 100% !important;
        max-width: 100% !important;
        table-layout: auto !important;
    }

    .download-table thead {
        display: none;
    }

    .download-table tbody {
        display: block;
        width: 100%;
    }

    .download-table tbody tr {
        display: block;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        margin-bottom: 16px;
        padding: 16px;
        border: 1px solid #eee;
        border-radius: 8px;
        background: #fff;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    }

    .download-table tbody tr:last-child {
        margin-bottom: 0;
    }

    .download-table td {
        display: flex;
        width: 100% !important;
        max-width: 100%;
        box-sizing: border-box;
        justify-content: space-between;
        align-items: center;
        padding: 8px 0;
        border-bottom: 1px solid #f5f5f5;
        text-align: right;
        font-size: 13px;
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    .download-table td:last-child {
        border-bottom: none;
        padding-top: 12px;
        justify-content: flex-end;
    }

    .download-table td.file-name {
        display: block;
        width: 100% !important;
        text-align: left;
        font-size: 15px;
        font-weight: 600;
        color: var(--text-dark) !important;
        padding: 0 0 12px;
        margin-bottom: 4px;
        border-bottom: 1px solid #f0f0f0;
        word-break: break-word;
    }

    .download-table td:nth-child(2)::before { content: '版本'; }
    .download-table td:nth-child(3)::before { content: '格式'; }
    .download-table td:nth-child(4)::before { content: '大小'; }
    .download-table td:nth-child(5)::before { content: '日期'; }

    .download-table td:not(.file-name):not(.file-ops)::before {
        color: #999;
        font-size: 12px;
        flex-shrink: 0;
        margin-right: 12px;
    }

    .download-table .file-date br {
        display: none;
    }

    .download-table .file-ops {
        gap: 24px;
        flex-shrink: 0;
    }

    /* News List Page - Mobile */
    .news-list {
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }

    .news-list-item {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-bottom: 32px;
        padding-bottom: 32px;
    }

    .news-list-item:last-child {
        margin-bottom: 0;
    }

    .news-list-img {
        width: 100%;
        height: auto;
        aspect-ratio: 16 / 9;
    }

    .news-list-info h3 {
        font-size: 18px;
        margin-bottom: 10px;
        line-height: 1.4;
    }

    .news-list-meta {
        font-size: 12px;
        margin-bottom: 10px;
    }

    .news-list-info p {
        font-size: 14px;
        line-height: 1.7;
        color: var(--text-muted);
        display: -webkit-box;
        -webkit-line-clamp: 3;
        line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .news-list-info .news-link {
        margin-top: 12px;
        font-size: 13px;
    }

    /* Contact Page - Mobile */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }

    .contact-info,
    .contact-form-wrap {
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }

    .contact-info .section-header {
        margin-bottom: 28px;
    }

    .contact-info .section-header p {
        font-size: 14px;
    }

    .contact-info-item {
        margin-bottom: 28px;
    }

    .contact-info-item:last-child {
        margin-bottom: 0;
    }

    .contact-info-item h4 {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .contact-info-item p {
        font-size: 14px;
        line-height: 1.7;
        word-break: break-word;
    }

    .contact-form-wrap .sidebar-box {
        padding: 24px 20px;
    }

    .contact-form-wrap .sidebar-title {
        font-size: 18px;
        margin-bottom: 20px;
    }

    .contact-form .form-group {
        margin-bottom: 16px;
    }

    .contact-form input,
    .contact-form textarea {
        padding: 12px 16px;
        font-size: 14px;
    }

    .contact-form textarea {
        height: 120px;
    }

    .map-container {
        margin-top: 48px;
        height: auto;
        aspect-ratio: 16 / 9;
        border-radius: 8px;
    }

    .map-container img {
        height: auto;
        object-fit: contain;
    }
}