/* ========================================
   京橙科技官网 - 主样式文件
   ======================================== */

/* CSS变量 */
:root {
    --primary: #FF7A00;
    --primary-dark: #E66A00;
    --primary-light: #FF9533;
    --dark: #222222;
    --gray: #666666;
    --light-gray: #F5F5F5;
    --white: #FFFFFF;
    --border: #E5E5E5;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
}

/* 基础样式 */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Microsoft YaHei', sans-serif;
    color: var(--dark); line-height: 1.6; background: var(--white);
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ========================================
   导航栏
   ======================================== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0;
    background: rgba(255,255,255,0.98); backdrop-filter: blur(10px);
    z-index: 1000; border-bottom: 1px solid var(--border);
    transition: all 0.3s ease;
}
.navbar.scrolled { box-shadow: var(--shadow); }
.navbar-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 70px;
}
.logo {
    display: flex; align-items: center; gap: 10px;
    font-size: 22px; font-weight: 700; color: var(--primary);
    text-decoration: none;
}
.logo-icon {
    width: 36px; height: 36px; background: var(--primary);
    border-radius: 8px; display: flex; align-items: center; justify-content: center;
    color: white; font-size: 18px; font-weight: 700;
}
.nav-menu { display: flex; align-items: center; gap: 6px; }
.nav-item { position: relative; }
.nav-link {
    padding: 10px 14px; color: var(--dark); text-decoration: none;
    font-size: 14px; font-weight: 500; border-radius: 6px;
    transition: all 0.3s ease; display: flex; align-items: center; gap: 4px;
}
.nav-link:hover, .nav-link.active { color: var(--primary); background: rgba(255,122,0,0.08); }
.nav-link svg { width: 14px; height: 14px; transition: transform 0.3s ease; }
.nav-item:hover .nav-link svg { transform: rotate(180deg); }

/* 产品下拉菜单 */
.products-dropdown {
    position: fixed; top: 70px; left: 0; right: 0;
    width: 100%; background: white; box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    opacity: 0; visibility: hidden; transition: all 0.3s ease;
    padding: 40px 60px; border-top: 2px solid var(--primary);
    z-index: 999;
}
.nav-item:hover .products-dropdown { opacity: 1; visibility: visible; }
.products-dropdown-title {
    font-size: 20px; font-weight: 700; color: var(--dark);
    margin-bottom: 24px; padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.products-dropdown-grid {
    display: grid; grid-template-columns: repeat(6, 1fr);
    gap: 16px 32px;
}
.products-dropdown-item {
    display: flex; align-items: center; gap: 12px;
    padding: 12px; border-radius: 8px;
    text-decoration: none; color: var(--dark);
    transition: all 0.3s ease;
}
.products-dropdown-item:hover {
    background: var(--light-gray); color: var(--primary);
}
.products-dropdown-icon {
    width: 40px; height: 40px; background: rgba(255,122,0,0.1);
    border-radius: 8px; display: flex; align-items: center; justify-content: center;
    font-size: 20px; flex-shrink: 0;
}
.products-dropdown-item:hover .products-dropdown-icon {
    background: var(--primary); transform: scale(1.1);
}
.products-dropdown-name { font-size: 14px; font-weight: 500; }
.products-dropdown-footer {
    margin-top: 24px; padding-top: 24px;
    border-top: 1px solid var(--border); text-align: center;
}

/* 业务服务下拉菜单 */
.services-dropdown {
    position: fixed; top: 70px; left: 0; right: 0;
    width: 100%; background: white;
    opacity: 0; visibility: hidden; transition: all 0.3s ease;
    padding: 0; border-top: 3px solid var(--primary);
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    z-index: 999;
}
.nav-item:hover .services-dropdown { opacity: 1; visibility: visible; }
.services-dropdown-inner {
    padding: 40px 60px;
    border: 2px solid rgba(255,122,0,0.1);
    border-top: none; background: white;
}
.services-dropdown-title {
    font-size: 20px; font-weight: 700; color: var(--dark);
    margin-bottom: 24px; padding-bottom: 16px;
    border-bottom: 2px solid var(--primary);
}
.services-dropdown-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 20px 40px;
}
.services-dropdown-item {
    display: flex; align-items: flex-start; gap: 16px;
    padding: 20px; border: 1px solid var(--border);
    border-radius: 12px; text-decoration: none; color: var(--dark);
    background: white; transition: all 0.3s ease;
}
.services-dropdown-item:hover {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(255,122,0,0.05), rgba(255,122,0,0.02));
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 10px 40px rgba(255,122,0,0.15);
}
.services-dropdown-icon {
    width: 56px; height: 56px; flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    font-size: 28px; transition: all 0.3s ease;
}
.services-dropdown-item:hover .services-dropdown-icon {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 0 8px 25px rgba(255,122,0,0.4);
}
.services-dropdown-info { flex: 1; }
.services-dropdown-name {
    font-size: 16px; font-weight: 600; margin-bottom: 6px;
    color: var(--dark); transition: color 0.3s ease;
}
.services-dropdown-item:hover .services-dropdown-name { color: var(--primary); }
.services-dropdown-desc {
    font-size: 13px; color: var(--gray); line-height: 1.5;
}
.services-dropdown-footer {
    margin-top: 24px; padding-top: 24px;
    border-top: 1px solid var(--border); text-align: center;
}

/* 导航按钮 */
.nav-actions { display: flex; gap: 10px; }
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 10px 20px; font-size: 14px; font-weight: 600;
    border-radius: 6px; text-decoration: none; cursor: pointer;
    transition: all 0.3s ease; border: none;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--dark); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-white { background: white; color: var(--primary); }
.btn-white:hover { background: var(--light-gray); }
.btn-lg { padding: 14px 32px; font-size: 16px; }

/* ========================================
   Banner轮播
   ======================================== */
.banner {
    height: 100vh; min-height: 600px; position: relative; overflow: hidden;
    padding-top: 70px;
}
.banner-slides { position: relative; height: 100%; }
.banner-slide {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    opacity: 0; transition: opacity 0.8s ease;
    display: flex; align-items: center; justify-content: center;
}
.banner-slide.active { opacity: 1; }

/* Banner背景样式 */
.banner-slide:nth-child(1) {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 50%, #1a1a1a 100%);
}
.banner-slide:nth-child(1)::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background:
        linear-gradient(90deg, transparent 0%, rgba(255,122,0,0.03) 50%, transparent 100%),
        repeating-linear-gradient(90deg, transparent, transparent 100px, rgba(255,122,0,0.05) 100px, rgba(255,122,0,0.05) 101px);
    pointer-events: none;
}
.banner-slide:nth-child(1)::after {
    content: ''; position: absolute; top: 50%; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,122,0,0.3), transparent);
    transform: translateY(-50%);
}

.banner-slide:nth-child(2) {
    background: linear-gradient(135deg, #1f1f1f 0%, #2a2a2a 50%, #1f1f1f 100%);
}
.banner-slide:nth-child(2)::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(255,122,0,0.08) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(255,122,0,0.05) 0%, transparent 40%);
    pointer-events: none;
}

.banner-slide:nth-child(3) {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #1a1a2e 100%);
}
.banner-slide:nth-child(3)::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background:
        linear-gradient(45deg, transparent 48%, rgba(255,122,0,0.03) 49%, rgba(255,122,0,0.03) 51%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, rgba(255,122,0,0.03) 49%, rgba(255,122,0,0.03) 51%, transparent 52%);
    background-size: 60px 60px;
    pointer-events: none;
}

.banner-slide:nth-child(4) {
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 50%, #0f0f0f 100%);
}
.banner-slide:nth-child(4)::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(circle at 50% 50%, rgba(255,122,0,0.1) 0%, transparent 50%),
        conic-gradient(from 0deg at 50% 50%, transparent 0deg, rgba(255,122,0,0.03) 60deg, transparent 120deg);
    pointer-events: none;
}

.banner-slide:nth-child(5) {
    background: linear-gradient(135deg, #1c1c1c 0%, #252525 50%, #1c1c1c 100%);
}
.banner-slide:nth-child(5)::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background:
        linear-gradient(90deg, transparent 0%, rgba(255,122,0,0.02) 25%, rgba(255,122,0,0.02) 75%, transparent 100%);
    pointer-events: none;
}

.banner-content {
    position: relative; z-index: 1; text-align: center; color: white;
    max-width: 900px; padding: 0 20px;
}
.banner-title {
    font-size: 48px; font-weight: 700; margin-bottom: 24px; line-height: 1.3;
    letter-spacing: 2px;
}
.banner-title span { color: var(--primary); }
.banner-desc {
    font-size: 18px; opacity: 0.85; margin-bottom: 48px;
    letter-spacing: 1px; line-height: 1.8;
}
.banner-buttons { display: flex; gap: 20px; justify-content: center; }
.banner-dots {
    position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
    display: flex; gap: 10px; z-index: 10;
}
.banner-dot {
    width: 12px; height: 12px; border-radius: 50%;
    background: rgba(255,255,255,0.3); cursor: pointer; transition: all 0.3s ease;
}
.banner-dot.active { background: var(--primary); width: 36px; border-radius: 6px; }

/* ========================================
   通用Section
   ======================================== */
.section { padding: 100px 0; }
.section-gray { background: var(--light-gray); }
.section-dark { background: var(--dark); color: white; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-label {
    display: inline-block; padding: 6px 16px;
    background: rgba(255,122,0,0.1); color: var(--primary);
    font-size: 14px; font-weight: 600; border-radius: 20px; margin-bottom: 16px;
}
.section-title { font-size: 36px; font-weight: 700; margin-bottom: 16px; }
.section-subtitle { font-size: 16px; color: var(--gray); max-width: 600px; margin: 0 auto; }

/* ========================================
   公司简介
   ======================================== */
.about-content { display: grid; grid-template-columns: 1.5fr 1fr; gap: 60px; align-items: center; }
.about-text { font-size: 16px; color: var(--gray); line-height: 2; }
.about-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.stat-card {
    background: white; padding: 30px; border-radius: 12px;
    text-align: center; box-shadow: var(--shadow);
}
.stat-number { font-size: 42px; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 14px; color: var(--gray); margin-top: 8px; }

/* ========================================
   业务卡片
   ======================================== */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
    background: white; padding: 32px 24px; border-radius: 12px;
    border: 1px solid var(--border); transition: all 0.3s ease;
    text-align: center;
}
.service-card:hover {
    border-color: var(--primary); box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}
.service-icon {
    width: 64px; height: 64px; background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 14px; display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px; font-size: 28px;
}
.service-icon svg { width: 36px; height: 36px; }
.service-icon svg * { stroke: #FFF5E6 !important; fill: #FFF5E6 !important; }
.service-title { font-size: 18px; font-weight: 600; margin-bottom: 10px; }
.service-desc { font-size: 14px; color: var(--gray); }

/* ========================================
   产品卡片
   ======================================== */
.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-card {
    background: white; border-radius: 12px; overflow: hidden;
    border: 1px solid var(--border); transition: all 0.3s ease;
}
.product-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.product-image {
    height: 160px; display: flex; align-items: center; justify-content: center;
    overflow: hidden; padding: 0;
}
.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.product-content { padding: 20px; text-align: center; }
.product-name { font-size: 16px; font-weight: 600; margin-bottom: 12px; }
.product-tags { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; margin-bottom: 12px; }
.product-tag { font-size: 11px; padding: 3px 8px; background: var(--light-gray); border-radius: 4px; color: var(--gray); }
.product-btns { display: flex; gap: 6px; justify-content: center; }
.product-btn {
    font-size: 12px; padding: 6px 10px; border-radius: 4px;
    text-decoration: none; transition: all 0.3s ease;
}
.product-btn-primary { background: var(--primary); color: white; }
.product-btn-outline { border: 1px solid var(--primary); color: var(--primary); }

/* 26款产品独特背景色 - 暖金/琥珀/橙色系 */
.product-bg-1 { background: #FFF8E1; }
.product-bg-2 { background: #FFF3CD; }
.product-bg-3 { background: #FFECB3; }
.product-bg-4 { background: #FFE082; }
.product-bg-5 { background: #FFD54F; }
.product-bg-6 { background: #FFCA28; }
.product-bg-7 { background: #FFC107; }
.product-bg-8 { background: #FFB300; }
.product-bg-9 { background: #FFA000; }
.product-bg-10 { background: #FF8F00; }
.product-bg-11 { background: #FFE0B2; }
.product-bg-12 { background: #FFCC80; }
.product-bg-13 { background: #FFB74D; }
.product-bg-14 { background: #FFA726; }
.product-bg-15 { background: #FF9800; }
.product-bg-16 { background: #FB8C00; }
.product-bg-17 { background: #F57C00; }
.product-bg-18 { background: #EF6C00; }
.product-bg-19 { background: #FFF9C4; }
.product-bg-20 { background: #FFF176; }
.product-bg-21 { background: #FFEE58; }
.product-bg-22 { background: #FFEB3B; }
.product-bg-23 { background: #FDD835; }
.product-bg-24 { background: #FBC02D; }
.product-bg-25 { background: #F9A825; }
.product-bg-26 { background: #F57F17; }

/* ========================================
   行业方案
   ======================================== */
.industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.industry-card {
    background: white; padding: 28px; border-radius: 12px;
    border: 1px solid var(--border); transition: all 0.3s ease;
}
.industry-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.industry-icon { font-size: 32px; margin-bottom: 16px; }
.industry-title { font-size: 16px; font-weight: 600; margin-bottom: 12px; }
.industry-products { font-size: 13px; color: var(--gray); line-height: 1.8; }

/* ========================================
   优势
   ======================================== */
.advantages-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.advantage-card {
    background: white; padding: 32px 24px; border-radius: 12px;
    text-align: center; border: 1px solid var(--border); transition: all 0.3s ease;
}
.advantage-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.advantage-icon {
    width: 56px; height: 56px; background: rgba(255,122,0,0.1);
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px; font-size: 28px;
}
.advantage-title { font-size: 16px; font-weight: 600; margin-bottom: 10px; }
.advantage-desc { font-size: 13px; color: var(--gray); line-height: 1.6; }

/* ========================================
   流程
   ======================================== */
.process-steps { display: flex; justify-content: space-between; position: relative; }
.process-steps::before {
    content: ''; position: absolute; top: 30px; left: 60px; right: 60px;
    height: 2px; background: var(--border);
}
.process-step { text-align: center; position: relative; z-index: 1; flex: 1; }
.process-number {
    width: 60px; height: 60px; background: var(--primary); color: white;
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px; font-size: 20px; font-weight: 700;
}
.process-title { font-size: 15px; font-weight: 600; }

/* ========================================
   案例
   ======================================== */
.cases-tabs { display: flex; gap: 10px; justify-content: center; margin-bottom: 40px; flex-wrap: wrap; }
.cases-tab {
    padding: 10px 24px; background: white; border: 1px solid var(--border);
    border-radius: 20px; font-size: 14px; cursor: pointer; transition: all 0.3s ease;
}
.cases-tab:hover, .cases-tab.active { background: var(--primary); color: white; border-color: var(--primary); }
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
    background: white; border-radius: 12px; overflow: hidden;
    border: 1px solid var(--border); transition: all 0.3s ease;
}
.case-card:hover { box-shadow: var(--shadow-lg); }
.case-image { height: 180px; background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); display: flex; align-items: center; justify-content: center; font-size: 48px; }
.case-content { padding: 20px; }
.case-title { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.case-desc { font-size: 13px; color: var(--gray); }

/* ========================================
   客户LOGO
   ======================================== */
.clients-scroll {
    display: flex; gap: 40px; animation: scroll 30s linear infinite;
}
@keyframes scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.client-logo {
    width: 140px; height: 60px; background: white; border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border); font-size: 14px; color: var(--gray);
    flex-shrink: 0;
}

/* ========================================
   资质团队
   ======================================== */
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 60px; }
.honor-card {
    background: white; padding: 24px; border-radius: 12px;
    text-align: center; border: 1px solid var(--border);
}
.honor-icon { font-size: 36px; margin-bottom: 12px; }
.honor-title { font-size: 14px; font-weight: 600; }
.team-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.team-card { background: white; padding: 20px; border-radius: 12px; text-align: center; border: 1px solid var(--border); }
.team-avatar { width: 60px; height: 60px; background: var(--light-gray); border-radius: 50%; margin: 0 auto 12px; display: flex; align-items: center; justify-content: center; font-size: 24px; }
.team-name { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.team-role { font-size: 12px; color: var(--gray); }

/* ========================================
   竞品对比
   ======================================== */
.compare-table { width: 100%; border-collapse: collapse; background: white; border-radius: 12px; overflow: hidden; }
.compare-table th, .compare-table td { padding: 16px 20px; text-align: center; border-bottom: 1px solid var(--border); }
.compare-table th { background: var(--light-gray); font-weight: 600; }
.compare-table th.highlight { background: var(--primary); color: white; }
.compare-table td.highlight { background: rgba(255,122,0,0.05); }
.compare-table .check { color: #10B981; font-size: 18px; }
.compare-table .cross { color: #EF4444; font-size: 18px; }

/* ========================================
   加盟合作
   ======================================== */
.cooperation-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cooperation-card {
    background: white; padding: 32px; border-radius: 12px;
    border: 1px solid var(--border); text-align: center; transition: all 0.3s ease;
}
.cooperation-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.cooperation-icon { font-size: 40px; margin-bottom: 16px; }
.cooperation-title { font-size: 18px; font-weight: 600; margin-bottom: 12px; }
.cooperation-desc { font-size: 14px; color: var(--gray); margin-bottom: 16px; }

/* ========================================
   FAQ
   ======================================== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: 8px; margin-bottom: 12px; overflow: hidden; }
.faq-question {
    width: 100%; padding: 18px 24px; background: white; border: none;
    font-size: 15px; font-weight: 600; text-align: left; cursor: pointer;
    display: flex; justify-content: space-between; align-items: center;
    font-family: inherit;
}
.faq-question:hover { color: var(--primary); }
.faq-icon { transition: transform 0.3s ease; }
.faq-item.active .faq-icon { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-answer-inner { padding: 0 24px 18px; font-size: 14px; color: var(--gray); line-height: 1.8; }

/* ========================================
   新闻
   ======================================== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: white; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); }
.news-image { height: 160px; background: var(--light-gray); display: flex; align-items: center; justify-content: center; font-size: 40px; }
.news-content { padding: 20px; }
.news-category { font-size: 12px; color: var(--primary); font-weight: 600; margin-bottom: 8px; }
.news-title { font-size: 16px; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.news-date { font-size: 12px; color: var(--gray); }

/* ========================================
   留资表单
   ======================================== */
.contact-form {
    max-width: 600px; margin: 0 auto; background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px); border-radius: 16px; padding: 40px;
}
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.form-input, .form-select, .form-textarea {
    width: 100%; padding: 14px 18px; background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2); border-radius: 8px;
    color: white; font-size: 15px; font-family: inherit;
}
.form-input::placeholder { color: rgba(255,255,255,0.5); }
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: none; border-color: var(--primary); }
.form-textarea { min-height: 100px; resize: vertical; }
.form-select option { background: var(--dark); }

/* ========================================
   页脚
   ======================================== */
.footer { background: #1a1a1a; color: white; padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.6); line-height: 1.8; margin-top: 16px; }
.footer-title { font-size: 16px; font-weight: 600; margin-bottom: 20px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,0.6); text-decoration: none; font-size: 14px; transition: color 0.3s ease; }
.footer-links a:hover { color: var(--primary); }
.footer-contact p { font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 10px; }
.footer-qrcode { width: 100px; height: 100px; background: white; border-radius: 8px; margin-top: 12px; display: flex; align-items: center; justify-content: center; font-size: 12px; color: var(--gray); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-copyright { font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { font-size: 13px; color: rgba(255,255,255,0.4); text-decoration: none; }
.footer-legal a:hover { color: white; }

/* ========================================
   悬浮客服
   ======================================== */
.float-service {
    position: fixed; right: 20px; bottom: 100px; z-index: 999;
    display: flex; flex-direction: column; gap: 10px;
}
.float-btn {
    width: 50px; height: 50px; background: var(--primary);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    color: white; font-size: 20px; cursor: pointer; box-shadow: var(--shadow);
    transition: all 0.3s ease;
}
.float-btn:hover { transform: scale(1.1); }

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
    .services-grid, .products-grid, .industry-grid, .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .honor-grid { grid-template-columns: repeat(3, 1fr); }
    .team-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: repeat(3, 1fr); }
    .nav-menu { display: none; }
}

@media (max-width: 768px) {
    .banner-title { font-size: 32px; }
    .section-title { font-size: 28px; }
    .about-content { grid-template-columns: 1fr; }
    .services-grid, .products-grid, .industry-grid, .advantages-grid, .cases-grid, .news-grid, .cooperation-grid { grid-template-columns: 1fr; }
    .process-steps { flex-direction: column; gap: 20px; }
    .process-steps::before { display: none; }
    .honor-grid, .team-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }
}