/* ============================================
   翰阁领行 - V90 样式表 (HTML+CSS+JS版本)
   ============================================ */

:root {
    --brand-primary: #2563eb;
    --brand-primary-dark: #1d4ed8;
    --brand-secondary: #1e3a5f;
    --brand-accent: #f97316;
    --brand-red: #dc2626;
    --brand-gray: #64748b;
    --brand-light: #f8fafc;
    --brand-dark: #0f172a;
    --brand-white: #fff;
    --font-heading: 'Barlow Condensed', sans-serif;
    --font-body: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    /* 优化4: 增强阴影层次系统 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-hover: 0 25px 35px -8px rgba(0, 0, 0, 0.12), 0 12px 18px -6px rgba(0, 0, 0, 0.06);
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
/* 优化18: 自定义滚动条样式 */
html { scroll-behavior: smooth; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--brand-light); }
::-webkit-scrollbar-thumb { background: linear-gradient(180deg, var(--brand-primary), var(--brand-accent)); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--brand-primary-dark); }
::-webkit-scrollbar-corner { background: var(--brand-light); }
/* 优化10: 段落行高统一 */
body { font-family: var(--font-body); font-size: 16px; line-height: 1.7; color: var(--brand-dark); background: #fff; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
/* 优化20: 焦点状态样式 */
button { border: none; background: none; cursor: pointer; font-family: inherit; }
button:focus-visible, a:focus-visible, input:focus-visible { outline: 2px solid var(--brand-primary); outline-offset: 2px; border-radius: 4px; }

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* Navigation - 优化1: 增强滚动过渡效果 */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 16px 0; transition: background-color 0.4s ease, backdrop-filter 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease, transform 0.3s ease; }
.navbar.scrolled { background: rgba(255, 255, 255, 0.98); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); padding: 10px 0; }
.nav-container { max-width: 1280px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon { width: 44px; height: 44px; background: var(--brand-red); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; color: white; font-family: var(--font-heading); font-size: 24px; font-weight: 700; }
.logo-text { font-family: var(--font-heading); font-size: 24px; font-weight: 700; color: var(--brand-dark); }
.nav-menu { display: flex; align-items: center; gap: 8px; }
.nav-link { padding: 10px 16px; font-size: 15px; font-weight: 500; color: var(--brand-white); border-radius: var(--radius); transition: var(--transition); position: relative; }
.nav-link:hover, .nav-link.active { color: var(--brand-white); }
.nav-link::after { content: ''; position: absolute; bottom: 4px; left: 16px; right: 16px; height: 2px; background: var(--brand-white); transform: scaleX(0); transition: var(--transition); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.scrolled .nav-link {color: var(--brand-dark);}
.scrolled .nav-link:hover, .scrolled .nav-link.active { color: var(--brand-primary); }
.scrolled .nav-link::after { background: var(--brand-primary); }
.nav-dropdown { position: relative; }
.dropdown-toggle { display: flex; align-items: center; gap: 4px; }
/* 优化25: 下拉菜单箭头旋转动画 */
.dropdown-toggle::after { content: ''; width: 0; height: 0; border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 5px solid currentColor; transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
.nav-dropdown:hover .dropdown-toggle::after { transform: rotate(180deg); }
.dropdown-menu { position: absolute; top: 100%; left: 0; min-width: 200px; background: white; border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 8px; opacity: 0; visibility: hidden; transform: translateY(10px); transition: var(--transition); }
.nav-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown .nav-link{ padding-bottom: 15px;}
.dropdown-menu a { display: block; padding: 10px 16px; font-size: 14px; border-radius: var(--radius-sm); transition: var(--transition); }
.dropdown-menu a:hover { background: var(--brand-light); color: var(--brand-primary); }
/* 优化23: 移动端汉堡菜单动画 */
.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; }
.mobile-menu-btn span { width: 24px; height: 2px; background: var(--brand-white); transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); border-radius: 2px; }
.mobile-menu-btn.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-menu-btn.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.mobile-menu-btn.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Hero Section - 优化2: 增强轮播切换动画 */
.hero { position: relative; min-height: 108vh; padding-top: 80px; overflow: hidden; }
.hero-slider { position: relative; height: calc(100vh - 80px); }
.hero-slide { position: absolute; inset: 0; display: flex; align-items: center; opacity: 0; visibility: hidden; transform: translateX(50px); transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.6s ease, transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); }
.hero-slide.active { opacity: 1; visibility: visible; transform: translateX(0); }
.hero-slide.prev { transform: translateX(-50px); }
.hero-bg { position: absolute; inset: 0; z-index: -1; }
.hero-content { max-width: 600px; padding: 0 24px; margin-left: calc((100% - 1280px) / 2 + 24px); }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; background: rgba(37, 99, 235, 0.1); border-radius: var(--radius-full); font-size: 14px; font-weight: 600; color: var(--brand-primary); margin-bottom: 24px; }
.badge-dot { width: 8px; height: 8px; background: var(--brand-primary); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.hero-title { font-family: var(--font-heading); font-size: 56px; font-weight: 700; line-height: 1.15; color: var(--brand-dark); margin-bottom: 24px; }
/* 优化27: 渐变色统一 */
.hero-title .highlight { background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-desc { font-size: 18px; color: var(--brand-gray); margin-bottom: 32px; max-width: 500px; }
.hero-buttons { display: flex; gap: 16px; margin-bottom: 48px; }
.hero-image { position: absolute; right: 0; top: 50%; transform: translateY(-50%); width: 50%; max-width: 700px; height: 80%; }
.hero-image img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-xl) 0 0 var(--radius-xl); }
.hero-stats { display: flex; gap: 32px; }
.stat-item { text-align: center; }
.stat-number { font-family: var(--font-heading); font-size: 36px; font-weight: 700; background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { font-size: 13px; color: var(--brand-gray); margin-top: 4px; }
.hero-dots { position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%); display: flex; gap: 12px; z-index: 10; }
.hero-dot { width: 12px; height: 12px; border-radius: 50%; background: rgba(37, 99, 235, 0.3); transition: var(--transition); border: none; }
.hero-dot:hover { background: rgba(37, 99, 235, 0.6); transform: scale(1.2); }
.hero-dot.active { background: var(--brand-primary); transform: scale(1.2); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2); }
.hero-arrows { position: absolute; top: 50%; transform: translateY(-50%); width: 100%; display: flex; justify-content: space-between; padding: 0 40px; pointer-events: none; z-index: 10; }
.hero-arrow { width: 50px; height: 50px; border-radius: 50%; background: white; box-shadow: var(--shadow-lg); display: flex; align-items: center; justify-content: center; color: var(--brand-dark); pointer-events: auto; transition: var(--transition); border: none; }
.hero-arrow:hover { background: var(--brand-primary); color: white; transform: scale(1.1); }
.scroll-indicator { position: absolute; bottom: 100px; left: 50%; transform: translateX(-50%); z-index: 10; }
.mouse { width: 26px; height: 40px; border: 2px solid var(--brand-gray); border-radius: var(--radius-full); position: relative; }
.mouse::after { content: ''; position: absolute; top: 8px; left: 50%; transform: translateX(-50%); width: 4px; height: 8px; background: var(--brand-gray); border-radius: var(--radius-full); animation: scrollWheel 1.5s infinite; }
@keyframes scrollWheel { 0% { opacity: 1; transform: translateX(-50%) translateY(0); } 100% { opacity: 0; transform: translateX(-50%) translateY(12px); } }

/* Buttons - 优化3: 增强悬停效果 */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; border-radius: var(--radius); font-size: 15px; font-weight: 600; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); position: relative; overflow: hidden; }
.btn::before { content: ''; position: absolute; top: 50%; left: 50%; width: 0; height: 0; background: rgba(255, 255, 255, 0.2); border-radius: 50%; transform: translate(-50%, -50%); transition: width 0.6s ease, height 0.6s ease; }
.btn:hover::before { width: 300px; height: 300px; }
.btn-primary { background: var(--brand-red); color: white; box-shadow: 0 4px 14px rgba(220, 38, 38, 0.25); }
.btn-primary:hover { background: #b91c1c; transform: translateY(-3px); box-shadow: 0 8px 25px rgba(220, 38, 38, 0.4); }
.btn-secondary { background: white; color: var(--brand-dark); border: 2px solid #e2e8f0; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04); }
.btn-secondary:hover { border-color: var(--brand-primary); color: var(--brand-primary); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15); }
.btn-outline { background: transparent; color: var(--brand-primary); border: 2px solid var(--brand-primary); }
.btn-outline:hover { background: var(--brand-primary); color: white; transform: translateY(-2px); box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25); }
.btn-outline-light { background: rgba(255, 255, 255, 0.1); color: white; border: 2px solid rgba(255, 255, 255, 0.3); backdrop-filter: blur(10px); }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.2); border-color: white; transform: translateY(-2px); }
.btn-lg { padding: 16px 32px; font-size: 16px; }
.btn .arrow { transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
.btn:hover .arrow { transform: translateX(6px); }

/* Section Common Styles */
.section-header { text-align: center; margin-bottom: 48px; }
.section-header.row { display: flex; justify-content: space-between; align-items: flex-end; text-align: left; }
.section-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; background: rgba(37, 99, 235, 0.1); border-radius: var(--radius-full); font-size: 14px; font-weight: 600; color: var(--brand-primary); margin-bottom: 16px; }
.section-badge .dot { width: 8px; height: 8px; background: var(--brand-primary); border-radius: 50%; }
.section-badge svg { stroke: var(--brand-primary); }
/* 优化9: 字体层级统一 */
.section-title { font-family: var(--font-heading); font-size: 42px; font-weight: 700; color: var(--brand-dark); margin-bottom: 16px; line-height: 1.2; }
.preview-title { font-family: var(--font-heading); font-size: 28px; font-weight: 700; color: var(--brand-dark); }
.case-content h3 { font-family: var(--font-heading); font-size: 22px; font-weight: 600; color: var(--brand-dark); margin-bottom: 12px; }
.process-card h3 { font-family: var(--font-heading); font-size: 20px; font-weight: 600; color: var(--brand-dark); margin-bottom: 12px; }
.software-card h3 { font-family: var(--font-heading); font-size: 20px; font-weight: 600; color: var(--brand-dark); margin-bottom: 12px; }
.section-title .highlight { background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-desc { font-size: 17px; color: var(--brand-gray); max-width: 600px; text-align: center; margin: 0 auto; }
.section-header.row .section-desc { margin: 0; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; font-weight: 600; color: var(--brand-primary); transition: var(--transition); }
.link-arrow span { transition: var(--transition); }
.link-arrow:hover span { transform: translateX(4px); }

/* About Section - 优化11: section间距统一 */
.about { padding: 120px 0; background: var(--brand-light); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-image { position: relative; border-radius: var(--radius-xl); overflow: hidden; }
.about-image img { width: 100%; height: 500px; object-fit: cover; transition: var(--transition-slow); }
.about-image:hover img { transform: scale(1.05); }
.image-badge { position: absolute; top: 24px; left: 24px; padding: 10px 20px; background: white; border-radius: var(--radius); font-size: 14px; font-weight: 600; color: var(--brand-primary); box-shadow: var(--shadow-md); z-index: 10; }
.about-content { padding: 24px 0; }
.about-text { margin-bottom: 24px; }
.about-text p { font-size: 16px; color: var(--brand-gray); margin-bottom: 16px; line-height: 1.75; }
.about-text .text-bold { font-weight: 700; color: var(--brand-dark); }
.about-tags { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
.about-tags .tag { padding: 8px 16px; background: rgba(37, 99, 235, 0.1); border-radius: var(--radius-full); font-size: 14px; font-weight: 500; color: var(--brand-primary); transition: var(--transition); }
.about-tags .tag:hover { background: var(--brand-primary); color: white; transform: translateY(-2px); }

/* Services Section */
.services { padding: 120px 0; }
.services-tabs { display: flex; justify-content: center; gap: 16px; margin-bottom: 48px; }
.tab-btn { display: flex; align-items: center; gap: 8px; padding: 14px 28px; background: white; border: 2px solid #e2e8f0; border-radius: var(--radius); font-size: 15px; font-weight: 600; color: var(--brand-gray); transition: var(--transition); }
.tab-btn:hover { border-color: var(--brand-primary); color: var(--brand-primary); }
.tab-btn.active { background: var(--brand-primary); border-color: var(--brand-primary); color: white; }
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.services-layout { display: grid; grid-template-columns: 320px 1fr; gap: 32px; }
.service-list { display: flex; flex-direction: column; gap: 8px; }
/* 优化5: 增强服务列表选中状态 */
.service-item { display: flex; align-items: center; gap: 16px; padding: 16px 20px; border-radius: var(--radius); cursor: pointer; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); border-left: 4px solid transparent; }
.service-item:hover { background: rgba(37, 99, 235, 0.05); transform: translateX(4px); }
.service-item.active { background: linear-gradient(90deg, rgba(37, 99, 235, 0.12) 0%, rgba(37, 99, 235, 0.04) 100%); border-left-color: var(--brand-primary); border-left-width: 4px; box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1); }
.service-item.active .service-name { color: var(--brand-primary); font-weight: 600; }
.service-item.active .service-icon { transform: scale(1.1); }
.service-icon { width: 48px; height: 48px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.service-info { display: flex; flex-direction: column; gap: 4px; }
.service-num { font-size: 12px; font-weight: 700; color: var(--brand-primary); opacity: 0.7; transition: all 0.3s ease; }
        .service-item:hover .service-num { opacity: 1; transform: scale(1.1); }
.service-name { font-size: 15px; font-weight: 600; color: var(--brand-dark); }
.service-preview { background: white; border-radius: var(--radius-xl); padding: 32px; box-shadow: var(--shadow-lg); border: 1px solid #f1f5f9; }
.preview-header { display: flex; align-items: center; gap: 20px; margin-bottom: 24px; }
.preview-icon { width: 72px; height: 72px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; color: white; }
.preview-tag { display: inline-block; padding: 6px 14px; background: rgba(37, 99, 235, 0.1); border-radius: var(--radius-full); font-size: 12px; font-weight: 600; color: var(--brand-primary); margin-bottom: 8px; }
.preview-title { font-family: var(--font-heading); font-size: 28px; font-weight: 700; color: var(--brand-dark); }
.preview-desc { font-size: 16px; color: var(--brand-gray); line-height: 1.75; margin-bottom: 24px; }
.preview-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.feature-item { display: flex; align-items: center; gap: 12px; }
.feature-icon { width: 32px; height: 32px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: white; }
.software-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.software-card { background: white; border-radius: var(--radius-xl); padding: 32px; box-shadow: var(--shadow); border: 1px solid rgba(241, 245, 249, 0.8); transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); }
.software-card:hover { transform: translateY(-10px) scale(1.01); box-shadow: var(--shadow-hover); border-color: rgba(37, 99, 235, 0.1); }
.software-icon { width: 60px; height: 60px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.software-card h3 { font-family: var(--font-heading); font-size: 20px; font-weight: 600; color: var(--brand-dark); margin-bottom: 12px; }
.software-card p { font-size: 15px; color: var(--brand-gray); line-height: 1.7; }

/* Cases Section */
.cases { padding: 120px 0; background: var(--brand-light); }
.cases-slider { overflow: hidden; }
.cases-track { display: flex; gap: 24px; transition: transform 0.5s ease; }
.case-card { flex: 0 0 calc(33.333% - 16px); background: white; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow); border: 1px solid rgba(241, 245, 249, 0.8); transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); }
.case-card:hover { transform: translateY(-10px) scale(1.01); box-shadow: var(--shadow-hover); border-color: rgba(37, 99, 235, 0.1); }
.case-image { height: 180px; position: relative; display: flex; align-items: center; justify-content: center; }
.case-logo { font-family: var(--font-heading); font-size: 64px; font-weight: 700; color: rgba(255, 255, 255, 0.3); }
.case-client { position: absolute; top: 16px; left: 16px; padding: 6px 14px; background: white; border-radius: var(--radius-full); font-size: 13px; font-weight: 600; color: var(--brand-dark); }
.case-industry { position: absolute; top: 16px; right: 16px; padding: 6px 14px; background: var(--brand-accent); border-radius: var(--radius-full); font-size: 12px; font-weight: 600; color: white; }
.case-content { padding: 24px; }
.case-content h3 { font-family: var(--font-heading); font-size: 20px; font-weight: 600; color: var(--brand-dark); margin-bottom: 12px; }
.case-content p { font-size: 15px; color: var(--brand-gray); line-height: 1.7; margin-bottom: 20px; }
/* 优化6: 案例卡片数据展示优化 */
.case-stats { display: flex; gap: 12px; padding: 20px 16px; background: linear-gradient(135deg, rgba(37, 99, 235, 0.06) 0%, rgba(249, 115, 22, 0.04) 100%); border-radius: var(--radius); margin-bottom: 16px; border: 1px solid rgba(37, 99, 235, 0.08); }
.case-stat { flex: 1; text-align: center; position: relative; }
.case-stat:not(:last-child)::after { content: ''; position: absolute; right: -6px; top: 50%; transform: translateY(-50%); width: 1px; height: 60%; background: linear-gradient(180deg, transparent, rgba(37, 99, 235, 0.15), transparent); }
.case-stat .stat-value { font-family: var(--font-heading); font-size: 22px; font-weight: 700; background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; display: block; margin-bottom: 4px; }
.case-stat .stat-label { font-size: 11px; color: var(--brand-gray); font-weight: 500; }
.case-tags { display: flex; flex-wrap: wrap; gap: 8px; }
/* 优化12: 标签圆角统一 */
.case-tags .tag { padding: 6px 14px; background: rgba(37, 99, 235, 0.1); border-radius: var(--radius-full); font-size: 12px; font-weight: 500; color: var(--brand-primary); transition: var(--transition); }
.case-tags .tag:hover { background: var(--brand-primary); color: white; }
.cases-nav { display: flex; justify-content: center; align-items: center; gap: 16px; margin-top: 40px; }
.case-nav-btn { width: 44px; height: 44px; border-radius: 50%; background: white; box-shadow: var(--shadow); display: flex; align-items: center; justify-content: center; color: var(--brand-dark); transition: var(--transition); border: none; }
.case-nav-btn:hover { background: var(--brand-primary); color: white; transform: scale(1.1); }
.case-dots { display: flex; gap: 8px; }
.case-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(37, 99, 235, 0.3); transition: var(--transition); border: none; }
.case-dot:hover { background: rgba(37, 99, 235, 0.6); }
.case-dot.active { background: var(--brand-primary); width: 24px; border-radius: 5px; }

/* Process Section */
.process { padding: 120px 0; }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-card { background: white; border-radius: var(--radius-xl); padding: 32px; box-shadow: var(--shadow); border: 1px solid rgba(241, 245, 249, 0.8); transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); position: relative; }
.process-card:hover { transform: translateY(-10px) scale(1.01); box-shadow: var(--shadow-hover); border-color: rgba(37, 99, 235, 0.1); }
/* 优化7: 流程卡片连接线增强 */
.process-card::after { content: ''; position: absolute; top: 50%; right: -24px; width: 24px; height: 3px; background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent)); transform: translateY(-50%); border-radius: 2px; }
.process-card::before { content: ''; position: absolute; top: 50%; right: -30px; width: 10px; height: 10px; background: var(--brand-accent); border-radius: 50%; transform: translateY(-50%); box-shadow: 0 0 0 4px rgba(249, 115, 22, 0.2); z-index: 1; }
.process-card:last-child::after, .process-card:last-child::before { display: none; }
.process-num { font-family: var(--font-heading); font-size: 48px; font-weight: 800; background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; opacity: 0.2; margin-bottom: -20px; }
.process-icon { width: 56px; height: 56px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.process-card h3 { font-family: var(--font-heading); font-size: 20px; font-weight: 600; color: var(--brand-dark); margin-bottom: 12px; }
.process-card > p { font-size: 15px; color: var(--brand-gray); line-height: 1.7; margin-bottom: 16px; }
.process-list { display: flex; flex-direction: column; gap: 8px; }
.process-list li { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--brand-gray); }
.process-list li::before { content: ''; width: 6px; height: 6px; background: var(--brand-primary); border-radius: 50%; }

/* Testimonials Section */
.testimonials { padding: 120px 0; background: var(--brand-light); }
.testimonials-slider { overflow: hidden; }
.testimonials-track { display: flex; gap: 24px; transition: transform 0.5s ease; }
.testimonial-card { flex: 0 0 calc(33.333% - 16px); background: white; border-radius: var(--radius-xl); padding: 32px; box-shadow: var(--shadow); border: 1px solid rgba(241, 245, 249, 0.8); transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); }
.testimonial-card:hover { transform: translateY(-8px) scale(1.01); box-shadow: var(--shadow-hover); border-color: rgba(37, 99, 235, 0.1); }
/* 优化8: 评价卡片引号样式优化 */
.quote { font-family: var(--font-heading); font-size: 48px; font-weight: 700; color: var(--brand-primary); line-height: 1; margin-bottom: -12px; opacity: 0.25; height: 40px; }
.testimonial-text { font-size: 15px; color: var(--brand-gray); line-height: 1.75; margin-bottom: 24px; }
.testimonial-author { display: flex; align-items: center; gap: 16px; }
.author-avatar { width: 48px; height: 48px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-family: var(--font-heading); font-size: 20px; font-weight: 600; }
.author-info h4 { font-size: 16px; font-weight: 600; color: var(--brand-dark); }
.author-info p { font-size: 13px; color: var(--brand-gray); }
.testimonials-nav { display: flex; justify-content: center; align-items: center; gap: 16px; margin-top: 40px; }
.testimonial-nav-btn { width: 44px; height: 44px; border-radius: 50%; background: white; box-shadow: var(--shadow); display: flex; align-items: center; justify-content: center; color: var(--brand-dark); transition: var(--transition); border: none; }
.testimonial-nav-btn:hover { background: var(--brand-primary); color: white; transform: scale(1.1); }
.testimonial-dots { display: flex; gap: 8px; }
.testimonial-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(37, 99, 235, 0.3); transition: var(--transition); border: none; }
.testimonial-dot:hover { background: rgba(37, 99, 235, 0.6); }
.testimonial-dot.active { background: var(--brand-accent); width: 24px; border-radius: 5px; }

/* Partners Section */
.partners { padding: 120px 0; }
.partners-marquee { overflow: hidden; mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent); }
/* 优化15: 合作伙伴滚动速度优化 */
.partners-track { display: flex; gap: 24px; animation: marquee 40s linear infinite; }
.partners-track:hover { animation-play-state: paused; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.partner-item { flex-shrink: 0; width: 140px; height: 100px; border-radius: var(--radius); display: flex; flex-direction: column; align-items: center; justify-content: center; font-family: var(--font-heading); font-size: 24px; font-weight: 700; transition: var(--transition); cursor: pointer; }
.partner-item:hover { transform: scale(1.1); filter: brightness(1.1); }
.partner-item small { font-size: 11px; font-weight: 500; opacity: 0.8; }

/* CTA Section */
.cta { position: relative; padding: 120px 0; overflow: hidden; }
.cta-bg { position: absolute; inset: 0; z-index: -2; }
.cta-bg img { width: 100%; height: 100%; object-fit: cover; }
.cta-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(30, 58, 95, 0.95), rgba(37, 99, 235, 0.9)); z-index: -1; }
.cta-content { text-align: center; color: white; margin-bottom: 64px; }
.cta-title { font-family: var(--font-heading); font-size: 48px; font-weight: 700; line-height: 1.2; margin-bottom: 24px; }
.cta-title .highlight { background: linear-gradient(135deg, #fbbf24 0%, #f97316 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.cta-desc { font-size: 18px; opacity: 0.9; max-width: 600px; margin: 0 auto 32px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; }
.cta-cards { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.cta-card { display: flex; width: calc((100% - 48px) /4); align-items: center; gap: 16px; padding: 20px; background: rgba(255, 255, 255, 0.1); backdrop-filter: blur(10px); border-radius: var(--radius); border: 1px solid rgba(255, 255, 255, 0.2); transition: var(--transition); }
.cta-card:hover { background: rgba(255, 255, 255, 0.2); transform: translateY(-4px); }
.cta-icon { width: 44px; height: 44px; border-radius: var(--radius); background: rgba(255, 255, 255, 0.2); display: flex; align-items: center; justify-content: center; color: white; flex-shrink: 0; }
.cta-info { display: flex; flex-direction: column; gap: 4px; }
.cta-info span { font-size: 12px; opacity: 0.8; color: white; }
.cta-info strong { font-size: 14px; font-weight: 600; color: white; }

/* Contact Section */
.contact { padding: 80px 0; background: white; }
.contact-content { text-align: center; }
.contact-title { font-family: var(--font-heading); font-size: 36px; font-weight: 700; color: var(--brand-dark); margin-bottom: 16px; }
.contact-title .highlight { background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-accent) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.contact-desc { font-size: 17px; color: var(--brand-gray); margin-bottom: 32px; }
.contact-buttons { display: flex; justify-content: center; gap: 16px; }

/* Footer */
.footer { padding: 80px 0 32px; background: var(--brand-light); }
.footer-grid { display: flex; flex-wrap: wrap; gap: 48px; margin-bottom: 48px; }
.footer-brand{width: 30%;}
.footer-brand .logo { margin-bottom: 20px; }
.footer-brand .logo-text-wrap { display: flex; flex-direction: column; }
.footer-brand .logo-sub { font-size: 12px; color: var(--brand-gray); }
.footer-links{ width: 17%;}
.footer-contact{ flex: 1;}
.footer-desc { font-size: 14px; color: var(--brand-gray); line-height: 1.7; margin-bottom: 24px; }
.footer-social { display: flex; gap: 12px; }
.social-link { width: 40px; height: 40px; border-radius: var(--radius); background: white; display: flex; align-items: center; justify-content: center; color: var(--brand-gray); transition: var(--transition); box-shadow: var(--shadow-sm); }
.social-link:hover { background: var(--brand-primary); color: white; transform: translateY(-4px); }
.footer-links h4, .footer-contact h4 { font-family: var(--font-heading); font-size: 16px; font-weight: 600; color: var(--brand-dark); margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
.footer-links h4::before, .footer-contact h4::before { content: ''; width: 3px; height: 16px; background: var(--brand-primary); border-radius: 2px; }
.footer-links ul { display: flex; flex-direction: column; gap: 12px; }
/* 优化16: Footer链接悬停效果增强 */
.footer-links a { font-size: 14px; color: var(--brand-gray); transition: all 0.3s ease; display: flex; align-items: center; gap: 8px; }
.footer-links a::before { content: ''; width: 4px; height: 4px; background: var(--brand-gray); border-radius: 50%; transition: all 0.3s ease; }
.footer-links a:hover { color: var(--brand-primary); transform: translateX(4px); }
.footer-links a:hover::before { background: var(--brand-primary); transform: scale(1.5); }
.footer-contact ul { display: flex; flex-direction: column; gap: 16px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; color: var(--brand-gray); }
.footer-contact li svg { color: var(--brand-primary); flex-shrink: 0; margin-top: 2px; }
.footer-contact a:hover { color: var(--brand-primary); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 32px; border-top: 1px solid #e2e8f0; }
.footer-bottom p { font-size: 14px; color: var(--brand-gray); }
.footer-nav { display: flex; gap: 24px; }
.footer-nav a { font-size: 14px; color: var(--brand-gray); transition: var(--transition); }
.footer-nav a:hover { color: var(--brand-primary); }

/* Back to Top Button */
.back-to-top { position: fixed; bottom: 30px; right: 30px; width: 48px; height: 48px; border-radius: 50%; background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-accent) 100%); color: white; display: flex; align-items: center; justify-content: center; cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(20px); transition: var(--transition); box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3); z-index: 999; }
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-5px); box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4); }

/* Animations */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.animate-on-scroll { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.animate-on-scroll.animated { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 1024px) {
    .hero-content { margin-left: 24px; max-width: 500px; }
    .hero-title { font-size: 42px; }
    .hero-image { width: 45%; }
    .about-grid { gap: 40px; }
    .services-layout { grid-template-columns: 280px 1fr; }
    .case-card, .testimonial-card { flex: 0 0 calc(50% - 12px); }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .process-card::after { display: none; }
    .cta-card { width: calc((100% - 16px) / 2); }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .nav-menu.active{
        display: block;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        padding: 15px;
    }
    .scrolled .mobile-menu-btn span{
        background: var(--brand-dark);
    }
    .nav-link{
        display: block;
        padding: 4px 10px;
        color: var(--brand-dark);
    }
    .nav-dropdown .nav-link{
        padding: 6px 10px;
    }
    .nav-link:hover, .nav-link.active{
        color: var(--brand-primary);
    }
    .nav-link::after{
        display: none;
    }
    .nav-dropdown .dropdown-menu{
        display: none;
        position: initial;
        padding: 0 15px;
        box-shadow: none;
    }
    .nav-dropdown:hover .dropdown-menu{
        display: block;
    }
    .dropdown-menu a{
        padding: 4px 10px;
    }
    .mobile-menu-btn { display: flex; }
    .hero { padding-top: 72px; }
    .hero-slide { flex-direction: column; padding: 40px 0; }
    .hero-content { margin: 0; padding: 0 24px; max-width: 100%; text-align: center; }
    .hero-title { font-size: 36px; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-image { position: relative; width: 100%; height: 300px; transform: none; margin-top: 40px; }
    .hero-image img { border-radius: 0; }
    .hero-arrows { display: none; }
    .scroll-indicator { display: none; }
    .section-title { font-size: 32px; }
    .about-grid { grid-template-columns: 1fr; }
    .about-image img { height: 300px; }
    .services-tabs { flex-wrap: wrap; }
    .services-layout { grid-template-columns: 1fr; }
    .service-list { flex-direction: row; overflow-x: auto; padding-bottom: 8px; }
    .service-item { flex-shrink: 0; min-width: 200px; }
    .software-grid { grid-template-columns: 1fr; }
    .case-card, .testimonial-card { flex: 0 0 100%; }
    .process-grid { grid-template-columns: 1fr; }
    .cta-title { font-size: 32px; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .cta-card { width: 100%; }
    .contact-buttons { flex-direction: column; align-items: center; }
    .footer-grid{ gap:15px;}
    .footer-links{ width: 14%;}
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    .footer-nav { flex-wrap: wrap; justify-content: center; }
    .about,.services,.cases,.process,.testimonials,.partners,.cta{
        padding: 60px 0;
    }
    .about{
        padding-bottom: 30px;
    }
    .process-card::before{
        display: none;
    }
}

@media (max-width: 480px) {
    .hero {
        min-height: 80vh;
    }
    .hero-slider{height:calc(100vh - 195px);}
    .hero-dots{ bottom: 20px;}
    .hero-title { font-size: 28px; }
    .section-title { font-size: 26px; }
    .about,.services,.cases,.process,.testimonials,.partners,.cta{
        padding: 30px 0;
    }
    .about{
        padding-bottom: 10px;
    }
    .hero-stats { gap: 16px; }
    .hero-buttons { flex-direction: column; width: 100%; }
    .hero-buttons .btn { width: 100%; justify-content: center; }
    .cta-card { width: 100%; }
    .cta-card { padding: 24px; }
    .footer-grid { gap: 20px; margin-bottom: 30px; }
    .footer-brand{width: 100%;}
    .footer-links{ width: 46%;}
    .footer-contact{ width: 100%;}
    .footer-brand { text-align: center; }
    .footer-social { justify-content: center; }
    .footer-contact ul li { justify-content: center; }
}
@media (max-width: 380px) {
    .hero-slider{
        height: 105vh;
    }

}