/* ========== 全局重置 ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
    color: #333;
    background-color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: color 0.3s; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* ========== 响应式容器 ========== */
.container { 
    width: 100%;
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 0 15px; 
}

.container .banner { 
    margin-bottom:15px;
}

/* ========== 颜色变量 ========== */
:root {
    --color-primary: #1752a6;
    --color-primary-dark: #0e3b7a;
    --color-accent: #007dcd;
    --color-accent-dark: #e09a0a;
    --color-text: #333;
    --color-text-light: #666;
    --color-bg-light: #f5f7fa;
}

/* ========== Header ========== */
.site-header { width: 100%; background: #fff; position: relative; z-index: 1001; }
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px;
    min-height: 110px;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo img { height: 55px; width: auto; margin-top:5px; }
.brand-text h1 { font-size: 23px; color: #333; font-weight: bold; line-height: 1.2; margin-top: 5px;}
.brand-text span { font-size: 11px; color: #999; text-transform: uppercase; letter-spacing: 1px; display: block; }

.header-right .phone-info { display: flex; align-items: center; gap: 8px;}
.header-right .fa-phone-alt { color: var(--color-accent); font-size: 20px; }
.header-right .phone-text span { display: block; font-size: 16px; color: #666; }
.header-right .phone-text strong { font-size: 20px; color: var(--color-accent); font-weight: bold; }

/* 汉堡菜单按钮（移动端） */
.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1002;
}
.navbar-toggle .icon-bar {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: all 0.3s;
}
.navbar-toggle.active .icon-bar:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.navbar-toggle.active .icon-bar:nth-child(2) { opacity: 0; }
.navbar-toggle.active .icon-bar:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ========== 导航菜单 ========== */
.main-nav { background-color: var(--color-primary); position: sticky; top: 0; z-index: 1000; }
.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
.nav-list { 
	display: flex; 
}

.nav-list li a {
    display: block;
    padding: 0 48px;
    line-height: 52px;
    color: #fff;
    font-size: 16px;
    position: relative;
    white-space: nowrap;
}
.nav-list li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: #007dcd;
    transition: all 0.3s;
    transform: translateX(-50%);
}
.nav-list li.active a::after,
.nav-list li a:hover::after { width: 60%; }
.nav-list li.active a,
.nav-list li a:hover { background-color: #2f91d1; }

/* 搜索框 */
.search-box { 
    display: flex; 
    height: 32px; 
    margin: 10px 0 10px 10px; 
    background: rgba(255,255,255,0.15); 
    border-radius: 4px; 
    border: 1px solid rgba(255,255,255,0.2); 
}
.search-box input { 
    border: none; 
    background: transparent; 
    color: #fff; 
    padding: 0 10px; 
    width: 120px; 
    outline: none; 
    font-size: 13px; 
}
.search-box input::placeholder { color: rgba(255,255,255,0.6); }
.search-box button { 
    border: none; 
    background: transparent; 
    color: #fff; 
    padding: 0 12px; 
    cursor: pointer; 
    font-size: 14px; 
}
.search-box button:hover { color: var(--color-accent); }

/* ========== Banner ========== */
.hero-banner {
    
	
	width: 100%;          /* 关键：不写死 1900px */
    max-width: 1900px;    /* 最大宽度保持你要的 1900px */
    margin: 0 auto;
    aspect-ratio: 1900 / 495; /* 关键：固定图片比例（你的图比例） */
    position: relative;
    overflow: hidden;
}
.banner-slider { width: 100%; height: 100%; position: relative; }
.banner-slide {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease, transform 1.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.banner-slide.active { opacity: 1; transform: scale(1); }
.banner-slide img {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
}
.banner-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
}
.banner-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: #fff;
    padding: 0 20px;
}
.banner-content h2 {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 15px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease 0.3s;
}
.banner-slide.active .banner-content h2 {
    opacity: 1;
    transform: translateY(0);
}
.banner-content h2 .highlight { color: var(--color-accent); }
.banner-content p {
    font-size: 16px;
    margin-bottom: 25px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s ease 0.5s;
    text-shadow: 0 1px 10px rgba(0,0,0,0.2);
}
.banner-slide.active .banner-content p {
    opacity: 0.9;
    transform: translateY(0);
}
.banner-btns {
    display: flex;
    gap: 15px;
    justify-content: center;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s ease 0.7s;
}
.banner-slide.active .banner-btns { opacity: 1; transform: translateY(0); }
.btn {
    padding: 10px 28px;
    border-radius: 25px;
    color: #fff;
    font-size: 13px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
}
.btn-orange { background-color: var(--color-accent); }
.btn-orange:hover { background-color: var(--color-accent-dark); transform: translateY(-2px); box-shadow: 0 5px 20px rgba(244,171,16,0.4); }
.btn-blue { background-color: var(--color-primary); border-color: #fff; backdrop-filter: blur(5px); }
.btn-blue:hover { background-color: #fff; color: var(--color-primary); transform: translateY(-2px); }

.banner-nav {
    position: absolute;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 20;
}
.banner-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
}
.banner-dot.active {
    background: var(--color-accent);
    transform: scale(1.2);
    border-color: #fff;
}
.banner-dot:hover { background: rgba(255,255,255,0.8); }

.banner-arrows {
    position: absolute;
    top: 45%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 15px;
    z-index: 20;
    pointer-events: none;
}
.banner-arrow {
    width: 45px; height: 45px;
    background: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    pointer-events: all;
    transition: all 0.3s;
    backdrop-filter: blur(5px);
}
.banner-arrow:hover {
    background: rgba(244,171,16,0.8);
    border-color: var(--color-accent);
    transform: scale(1.1);
}

/* ========== Intro Entries ========== */
.intro-entries {
    width: 100%;
    max-width: 1200px;
    margin: -40px auto 0;
    display: flex;
    gap: 12px;
    position: relative;
    z-index: 50;
    padding: 20px 15px;
	margin-top: 10px;
}
.entry-card {
    flex: 1;
    height: 250px;
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    cursor: pointer;
}
.entry-card img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.entry-card:hover img { transform: scale(1.1); }
.entry-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(45, 45, 45, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.4s ease;
    color: #fff;
    padding: 15px;
    text-align: center;
}
.entry-card:hover .entry-overlay { opacity: 1; }
.entry-overlay h3 {
    font-size: 18px;
    margin-bottom: 6px;
    transform: translateY(20px);
    transition: transform 0.4s ease 0.1s;
}
.entry-card:hover .entry-overlay h3 { transform: translateY(0); }
.entry-overlay p {
    font-size: 12px;
    opacity: 0.8;
    transform: translateY(20px);
    transition: transform 0.4s ease 0.2s;
}
.entry-card:hover .entry-overlay p { transform: translateY(0); }
.entry-overlay .entry-line {
    width: 35px; height: 3px;
    background: var(--color-accent);
    margin: 10px 0;
    transform: scaleX(0);
    transition: transform 0.4s ease 0.15s;
}
.entry-card:hover .entry-overlay .entry-line { transform: scaleX(1); }

/* ========== Section Title ========== */
.section-title {
    text-align: center;
    margin-bottom: 35px;
    position: relative;
}
.section-title h2 {
    font-size: 22px;
    font-weight: bold;
    color: #333;
}
.section-title span {
    display: block;
    color: #a0c4e8;
    font-size: 13px;
    letter-spacing: 2px;
    margin-top: 5px;
    text-transform: uppercase;
}
.section-title::after {
    content: '';
    display: block;
    width: 45px;
    height: 3px;
	background: #007dcd;
    margin: 12px auto 0;
}
section { padding: 0 0 0px 0; }

/* ========== Product Center ========== */
.section-product-center { 
    background: #fff; 
    margin-top: 50px;
}
.pc-layout {
    display: flex;
    gap: 0;
    min-height: 500px;
    border: 1px solid #e8edf2;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

/* 左侧分类导航 */
.pc-sidebar {
    width: 200px;
    flex-shrink: 0;
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    position: relative;
    overflow: hidden;
}
.pc-sidebar::before {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    animation: sidebarScan 4s linear infinite;
    pointer-events: none;
}
@keyframes sidebarScan {
    0% { top: -100%; }
    100% { top: 200%; }
}
.pc-sidebar-title {
    padding: 15px;
    text-align: center;
    color: #fff;
    font-size: 15px;
    font-weight: bold;
    letter-spacing: 1px;
    background: rgba(0,0,0,0.15);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.pc-category-list {
    max-height: 700px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.2) transparent;
}
.pc-category-list::-webkit-scrollbar { width: 4px; }
.pc-category-list::-webkit-scrollbar-track { background: transparent; }
.pc-category-list::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 2px; }
.pc-cat-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 15px;
    color: rgba(255,255,255,0.75);
    font-size: 16px;
    cursor: pointer;
    transition: all 0.25s ease;
    border-left: 3px solid transparent;
    position: relative;
    overflow: hidden;
}
.pc-cat-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, rgba(244,171,16,0.15), transparent);
    transition: width 0.35s ease;
    pointer-events: none;
}
.pc-cat-item:hover::before { width: 100%; }
.pc-cat-item:hover {
    color: #fff;
    background: rgba(255,255,255,0.08);
    border-left-color: rgba(244,171,16,0.5);
}
.pc-cat-item.active {
    color: #fff;
    background: rgba(0,0,0,0.2);
    border-left-color: var(--color-accent);
    font-weight: bold;
}
.pc-cat-item.active::before { width: 100%; background: linear-gradient(90deg, rgba(244,171,16,0.2), transparent); }
.pc-cat-item .cat-name { flex: 1; line-height: 1.6; }
.pc-cat-item .cat-arrow {
    font-size: 14px;
    opacity: 0;
    transform: translateX(-5px);
    transition: all 0.3s ease;
    color: var(--color-accent);
}
.pc-cat-item:hover .cat-arrow,
.pc-cat-item.active .cat-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* 右侧产品区域 */
.pc-product-area {
    flex: 1;
    padding: 20px;
    background: #fafbfc;
}
.pc-product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    transition: opacity 0.35s ease, transform 0.35s ease;
}
.pc-product-grid.fade-out {
    opacity: 0;
    transform: translateY(12px);
}
.pc-prod-card {
    background: #fff;
    border: 1px solid #e8ecf0;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.35s ease;
    position: relative;
}
.pc-prod-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
    opacity: 0;
    transition: opacity 0.35s ease;
}
.pc-prod-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 8px;
    box-shadow: inset 0 0 30px rgba(139, 92, 246, 0), 0 0 20px rgba(139, 92, 246, 0);
    transition: all 0.4s ease;
    pointer-events: none;
}
.pc-prod-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(23, 82, 166, 0.12);
}
.pc-prod-card:hover::before { opacity: 1; }
.pc-prod-card:hover::after {
    box-shadow: inset 0 0 30px rgba(139, 92, 246, 0.06), 0 0 25px rgba(139, 92, 246, 0.12);
}
.pc-prod-img {
    height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
    
    overflow: hidden;
    position: relative;
}
.pc-prod-img a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}
.pc-prod-img::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(244,171,16,0.8), transparent);
    transform: translateY(-100%);
    transition: none;
    pointer-events: none;
    z-index: 5;
	
}
.pc-prod-card:hover .pc-prod-img::before {
    animation: prodScan 1.5s ease-in-out;
}
@keyframes prodScan {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(250px); }
}
.pc-prod-img img {
    max-width: 85%;
    max-height: 85%;
    object-fit: contain;
    transition: transform 0.5s ease;
    -webkit-user-drag: none;
    user-select: none;
    pointer-events: none;
}
.pc-prod-card:hover .pc-prod-img img {
    transform: scale(1.2);
}
.pc-prod-name {
    padding: 12px 8px;
    text-align: center;
    font-size: 14px;
    color: #555;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}
.pc-prod-card:hover .pc-prod-name { color: var(--color-primary); }
.pc-prod-card .prod-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0);
    transition: all 0.3s ease 0.1s;
    z-index: 10;
}
.pc-prod-card .prod-badge svg { width: 10px; height: 10px; }
.pc-prod-card:hover .prod-badge {
    opacity: 1;
    transform: scale(1);
}

/* ========== Invest Banner ========== */
.invest-banner {
    position: relative;
    height: 205px;
    overflow: hidden;
    margin: 60px 0 0 0;
    padding: 0;
}
.invest-slider { width: 100%; height: 100%; position: relative; }
.invest-slide {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.invest-slide.active { opacity: 1; }
.invest-slide img {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
}
.invest-slide .invest-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
}
.invest-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: #fff;
    padding: 0 20px;
}
.invest-content h2 { font-size: 26px; color: var(--color-accent); margin-bottom: 8px; }
.invest-content p { font-size: 14px; opacity: 0.9; }
.invest-content .invest-phone { color: var(--color-accent); margin-top: 8px; font-size: 18px; font-weight: bold; }
.invest-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 20;
}
.invest-dot {
    width: 9px; height: 9px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.3s;
}
.invest-dot.active { background: var(--color-accent); transform: scale(1.3); }

/* ========== Cases Section ========== */
.section-cases { 
    background: var(--color-bg-light); 
    padding-top: 40px;
}
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.case-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
    height: 200px;
}
.case-item img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.case-item:hover img { transform: scale(1.1); }
.case-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(to top, rgba(23,82,166,0.8) 0%, rgba(23,82,166,0.2) 50%, transparent 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    display: flex;
    align-items: flex-end;
    padding: 15px;
}
.case-item:hover .case-overlay { opacity: 1; }
.case-overlay span {
    color: #fff;
    font-size: 14px;
    font-weight: bold;
    transform: translateY(10px);
    transition: transform 0.4s ease;
}
.case-item:hover .case-overlay span { transform: translateY(0); }
.case-item.case-more {
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    transition: background 0.3s;
}
.case-item.case-more:hover { background: var(--color-primary-dark); }
.case-item.case-more i { margin-left: 6px; transition: transform 0.3s; }
.case-item.case-more:hover i { transform: translateX(5px); }

/* ========== News Section ========== */
.section-news { 
    background: #fff; 
    margin-top: 40px;
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.news-item {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.06);
    transition: all 0.4s ease;
    border: 1px solid #eee;
}
.news-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.12);
}
.news-img {
    height: 180px;
    overflow: hidden;
    position: relative;
}
.news-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.news-item:hover .news-img img { transform: scale(1.1); }
.news-img::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.3) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.4s;
}
.news-item:hover .news-img::after { opacity: 1; }
.news-body { padding: 15px; }
.news-body h4 {
    font-size: 13px;
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.3s;
}
.news-item:hover .news-body h4 { color: var(--color-accent); }
.news-body .date { font-size: 11px; color: #999; margin-bottom: 8px; }
.news-body .desc {
    font-size: 11px;
    color: #666;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========== Partners Section ========== */
.section-partners { 
    background: #f9fafb; 
    overflow: hidden; 
    height: 1030px;
    padding-top: 40px;
}
.partners-track {
    display: flex;
    animation: scrollPartners 30s linear infinite;
    width: max-content;
}
.partners-track:hover { animation-play-state: paused; }
.partner-item {
    flex-shrink: 0;
    width: 200px;
    height: 100px;
    margin: 0 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s;
}
.partner-item:hover {
    box-shadow: 0 5px 25px rgba(0,0,0,0.1);
    transform: scale(1.05);
}
.partner-item img {
    /* max-width: 120px; */
    max-height: 90px;
    /* filter: grayscale(100%); */
    /* opacity: 0.6; */
    transition: all 0.3s;
}
.partner-item:hover img {
    filter: grayscale(0);
    opacity: 1;
}
@keyframes scrollPartners {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ========== Footer ========== */
.site-footer {
    background: #1a1a1a;
    color: #ccc;
    font-size: 14px;
}
.footer-cols {
    display: flex;
    padding: 40px 0;
    gap: 30px;
}
.footer-cols h3 { color: #fff; font-size: 15px; margin-bottom: 12px; position: relative; }
.footer-cols h3::after {
    content: '';
    display: block;
    width: 28px; height: 3px;
	background: #007dcd;
    margin-top: 8px;
}
.col-about { flex: 2; line-height: 1.8; }
.col-contact { flex: 2; }
.col-contact p { margin-bottom: 6px; }
.col-contact a { color: var(--color-accent); }
.col-contact a:hover { text-decoration: underline; }
.link-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.link-grid a { color: #ccc; transition: color 0.3s; }
.link-grid a:hover { color: var(--color-accent); }
.col-qr { display: flex; gap: 25px; }
.qr-item { text-align: center; }
.qr-item img { width: 110px; height: 110px; margin-bottom: 6px; background: #fff; padding: 4px; border-radius: 5px; }
.qr-item p { font-size: 14px; color: #ccc; }
.copyright {
    border-top: 1px solid #fff;
    text-align: center;
    padding: 15px 0;
    color: #ccc;
    font-size: 14px;
}

/* ========== Animations ========== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.back-to-top {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 42px;
    height: 42px;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
    box-shadow: 0 3px 15px rgba(23,82,166,0.3);
}
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--color-accent); transform: translateY(-3px); }

/* 标题动画 */
.anim-title-cn, .anim-title-en { position: relative; display: inline-block; }
.anim-title-cn { opacity: 0; transform: translateX(-40px); transition: all 0.7s cubic-bezier(0.25,0.46,0.45,0.94); }
.anim-title-en { opacity: 0; transform: translateX(40px); transition: all 0.7s cubic-bezier(0.25,0.46,0.45,0.94); transition-delay: 0.15s; color: #2f91d1; }
.anim-title-cn.is-visible, .anim-title-en.is-visible { opacity: 1; transform: translateX(0); }
@media (max-width: 768px) {
    .anim-title-cn::before, .anim-title-cn::after, .anim-title-en::before, .anim-title-en::after { display: none !important; }
}

/* ========== 响应式媒体查询 ========== */

/* 平板及以下 (≤1024px) */
@media (max-width: 1024px) {
    html { font-size: 15px; }
    .header-inner { padding: 12px; min-height: 70px; }
    .brand-text h1 { font-size: 16px; }
    .header-right .phone-text strong { font-size: 14px; }
    
    .hero-banner { height: 420px; }
    .banner-content h2 { font-size: 28px; }
    .banner-content p { font-size: 14px; }
    
    .intro-entries { margin-top: -30px; }
    .entry-card { height: 170px; }
    
    .pc-sidebar { width: 160px; }
    .pc-product-grid { grid-template-columns: repeat(2, 1fr); }
    
    .case-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    
    .footer-cols { flex-wrap: wrap; }
    .col-about, .col-contact { flex: 1 1 100%; }
}

/* 手机 (≤768px) */
@media (max-width: 768px) {
    html { font-size: 14px; }
    
    /* Header */
    .header-inner { padding: 10px; min-height: 60px; }
    .logo img { height: 38px; }
    .brand-text h1 { font-size: 14px; }
    .brand-text span { display: none; }
    .header-right .phone-text span { display: none; }
    .header-right .phone-text strong { font-size: 13px; }
    
    /* 汉堡菜单显示 */
    .navbar-toggle { display: flex; }
    
    /* 导航菜单隐藏 + 移动端展开 */
    .nav-list {
		position: absolute;
		top: 100%;
		left: 0;
		width: 100%;
		background: var(--color-primary); /* 或 #1752a6 */
		flex-direction: column;
		max-height: 0;
		overflow: hidden;
		opacity: 0;
		visibility: hidden;
		transition: max-height 0.4s ease, opacity 0.3s ease, visibility 0s 0.4s;
		z-index: 999;
		box-shadow: 0 4px 12px rgba(0,0,0,0.1);
	}

	/* 展开状态 - 同时设置高度和可见性 */
	.nav-list.in {
		max-height: 500px;
		opacity: 1;
		visibility: visible;
		transition: max-height 0.4s ease, opacity 0.3s ease, visibility 0s 0s;
	}

	.nav-list li a {
		padding: 12px 20px;
		line-height: 1.4;
		border-bottom: 1px solid rgba(255,255,255,0.1);
		text-align: left; /* 确保文字左对齐 */
	}
	.nav-list li a::after { display: none; } /* 隐藏桌面端下划线 */
    
    /* Banner */
    .hero-banner { height: 320px; }
    .banner-content h2 { font-size: 22px; margin-bottom: 10px; }
    .banner-content p { font-size: 13px; margin-bottom: 18px; }
    .banner-btns { gap: 10px; flex-wrap: wrap; }
    .btn { padding: 8px 22px; font-size: 12px; }
    .banner-nav { bottom: 50px; }
    .banner-arrow { width: 38px; height: 38px; font-size: 16px; }
    
    /* Intro Entries */
    .intro-entries { flex-direction: column; margin-top: 20px; }
    .entry-card { height: 160px; }
    
    /* Product Center */
    .pc-layout { flex-direction: column; }
    .pc-sidebar { 
        width: 100%; 
        max-height: 200px;
        overflow-y: auto;
    }
    .pc-category-list {
        display: flex;
        flex-wrap: wrap;
        max-height: none;
        padding: 8px;
        gap: 4px;
    }
    .pc-cat-item {
        flex: 1 1 auto;
        min-width: 100px;
        padding: 7px 10px;
        border-left: none;
        border-bottom: 2px solid transparent;
        border-radius: 5px;
        justify-content: center;
    }
    .pc-cat-item.active { border-bottom-color: var(--color-accent); }
    .pc-cat-item .cat-arrow { display: none; }
    .pc-product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .pc-prod-img { height: 120px; }
    
    /* Invest Banner */
    .invest-banner { height: 140px; }
    .invest-content h2 { font-size: 20px; }
    .invest-content .invest-phone { font-size: 16px; }
    
    /* Cases */
    .case-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .case-item { height: 140px; }
    
    /* News */
    .news-grid { grid-template-columns: 1fr; gap: 15px; }
    .news-img { height: 150px; }
    
    /* Partners */
    .section-partners { height: auto; padding: 30px 0; }
    .partner-item { width: 120px; height: 60px; margin: 0 15px; }
    
    /* Footer */
    .footer-cols { flex-direction: column; padding: 30px 0; }
    .col-qr { justify-content: center; }
    .copyright { font-size: 11px; }
}

/* 小手机 (≤480px) */
@media (max-width: 480px) {
    html { font-size: 13px; }
    
    .header-inner { padding: 8px; }
    .logo img { height: 32px; }
    .brand-text h1 { font-size: 13px; }
    
    .hero-banner { height: 260px; }
    .banner-content h2 { font-size: 18px; }
    .banner-content p { font-size: 12px; }
    .btn { padding: 7px 18px; font-size: 11px; }
    
    .intro-entries { padding: 0 10px; }
    .entry-card { height: 140px; border-radius: 6px; }
    .entry-overlay h3 { font-size: 16px; }
    
    .section-title h2 { font-size: 19px; }
    
    .pc-sidebar-title { font-size: 14px; padding: 12px; }
    .pc-product-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .pc-prod-img { height: 100px; }
    .pc-prod-name { font-size: 11px; padding: 10px 6px; }
    
    .case-grid { grid-template-columns: 1fr; }
    .case-item { height: 160px; }
    
    .invest-banner { height: 120px; }
    .invest-content h2 { font-size: 18px; }
    
    .footer-cols h3 { font-size: 14px; }
    .qr-item img { width: 75px; height: 75px; }
}

/* 隐藏滚动条但保留功能 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.4); }

/* ========== Workshop Showcase Section ========== */
.section-workshop { 
    background: var(--color-bg-light); 
    padding-top: 30px;
    padding-bottom: 0px;
}

.workshop-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    /*grid-template-rows: repeat(2, 280px);*/
	grid-auto-rows: 350px;
    gap: 12px;
}

.workshop-grid1 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);

    /*grid-template-rows: repeat(2, 280px);*/
	grid-auto-rows: 255px;
    gap: 12px;
}

/* 第一行：左边大图（跨2列），右边更多案例 */
.workshop-item:nth-child(1),
.workshop-item:nth-child(2),
.workshop-item:nth-child(3),
.workshop-item:nth-child(4)
 {
    grid-column: span 2;
    grid-row: span 1;
}

/* 第二行：3张图片 */
.workshop-item:nth-child(5),
.workshop-item:nth-child(6) {
    grid-column: span 1;
    grid-row: span 1;
}

/* 第二组：加了 .grid-4 的区块，全部 4个一排 */
.grid-4 .workshop-item {
    grid-column: span 1 !important;
    grid-row: span 1 !important;
}



/*  workshop item 基础样式 */
.workshop-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.workshop-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.5s ease;
    filter: grayscale(0);
}

/* 鼠标悬停时图片变灰色 */
.workshop-item:hover img {
    filter: grayscale(100%);
    transform: scale(1.05);
}

/* 遮罩层样式 */
.workshop-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(23, 82, 166, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.4s ease;
    padding: 20px;
}

/* 鼠标悬停时显示遮罩 */
.workshop-item:hover .workshop-overlay {
    opacity: 1;
}

.overlay-content {
    text-align: center;
    color: #fff;
    transform: translateY(20px);
    transition: all 0.4s ease 0.1s;

    /* 绝对定位靠底部 */
    position: absolute;
    bottom: 20px; /* 距离底部多少，自己改数字 */
    
}

.workshop-item:hover .overlay-content {
    transform: translateY(0);
}

.overlay-content h3 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #fff;
}

.overlay-content p {
    font-size: 14px;
    opacity: 0.9;
}

/* 更多案例样式 */
.workshop-item.workshop-more {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.workshop-item.workshop-more:hover {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(23, 82, 166, 0.3);
}

.more-content {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 18px;
    font-weight: bold;
}

.more-content i {
    transition: transform 0.3s ease;
}

.workshop-item.workshop-more:hover .more-content i {
    transform: translateX(8px);
}

/* ========== 响应式适配 ========== */
@media (max-width: 1024px) {
    .workshop-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
    }
    
    .workshop-item:nth-child(1),
    .workshop-item:nth-child(2),
    .workshop-item:nth-child(3),
    .workshop-item:nth-child(4) {
        grid-column: span 1;
        grid-row: span 1;
        height: 250px;
    }
    
    .workshop-item:nth-child(5) {
        grid-column: span 2;
        height: 180px;
    }
}

@media (max-width: 768px) {
    .workshop-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    
    .workshop-item:nth-child(1),
    .workshop-item:nth-child(2),
    .workshop-item:nth-child(3),
    .workshop-item:nth-child(4),
    .workshop-item:nth-child(5) {
        grid-column: span 1;
        height: 220px;
    }
    
    .overlay-content h3 {
        font-size: 20px;
    }
    
    .more-content {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .workshop-item {
        height: 200px !important;
    }
    
    .overlay-content h3 {
        font-size: 18px;
    }
    
    .overlay-content p {
        font-size: 12px;
    }
}

.partners-wrapper {
    max-width: 1200px;
    margin: 0 auto;
}

.partner-category {
    margin-bottom: 50px;
}
.partner-category:last-child {
    margin-bottom: 0;
}

/* 带横线的标题 */
.category-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
    position: relative;
}
.category-divider::before,
.category-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: #ddd;
}
.category-title {
    padding: 0 20px;
    font-size: 18px;
    font-weight: bold;
    color: #333;
    letter-spacing: 2px;
    white-space: nowrap;
}

/* Logo 网格 */
.category-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 7px;
}

.logo-box {
    width: 140px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    background: #fff;
    border-radius: 6px;
    transition: all 0.3s ease;
    cursor: pointer;
}
.logo-box:hover {
    box-shadow: 0 5px 10px rgba(0,0,0,0.08);
    transform: translateY(-3px);
}
.logo-box img {
    max-width: 100%;
    max-height: 100%;
    /* filter: grayscale(100%) brightness(0.7); */
    /* opacity: 0.65; */
    /* transition: all 0.3s ease; */
}
.logo-box:hover img {
    filter: grayscale(0%) brightness(1);
    opacity: 1;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .category-logos {
        gap: 15px;
    }
    .logo-box {
        width: calc(33.333% - 10px);
        min-width: 100px;
    }
    .category-title {
        font-size: 16px;
    }
}
@media (max-width: 480px) {
    .logo-box {
        width: calc(50% - 10px);
    }
}

/* 按钮容器：让按钮靠右对齐 */
.view-all-btn-wrapper {
    text-align: right;
    margin-top: 14px; /* 和上面的产品列表拉开距离 */
}

/* 按钮本身样式，和截图效果一致 */
.view-all-btn {
    display: inline-block;
    background-color: #4aa0e6; /* 截图的蓝色 */
    color: #fff;
    padding: 12px 28px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.view-all-btn:hover {
    background-color: #3586c7; /* hover 加深一点 */
}