/*
 * 金韵广告网站样式
 * 科技蓝 + 紫色 + 粉紫蓝渐变
 * 现代科技感设计系统
 */

/* ==================== 设计令牌 ==================== */
:root {
    /* 主色系统 - 客户指定配色 */
    --primary: #2563EB;
    --primary-light: #3B82F6;
    --primary-dark: #1D4ED8;
    --primary-50: #EFF6FF;
    --primary-100: #DBEAFE;
    --primary-200: #BFDBFE;
    --primary-500: #2563EB;
    --primary-600: #1D4ED8;
    --primary-700: #1E40AF;

    /* 辅色系统 - 紫色 */
    --secondary: #8B5CF6;
    --secondary-light: #A78BFA;
    --secondary-dark: #7C3AED;
    --secondary-50: #F5F3FF;
    --secondary-100: #EDE9FE;
    --secondary-200: #DDD6FE;
    --secondary-500: #8B5CF6;
    --secondary-600: #7C3AED;
    --secondary-700: #6D28D9;

    /* 强调色 */
    --accent: #EC4899;
    --accent-light: #F472B6;
    --accent-50: #FDF2F8;

    /* 渐变系统 - 客户指定 */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-blue: linear-gradient(135deg, #2563EB 0%, #1d4ed8 100%);
    --gradient-purple: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #8B5CF6 100%);
    --gradient-soft: linear-gradient(135deg, #EFF6FF 0%, #F5F3FF 100%);
    --gradient-gold: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);

    /* 中性色系统 */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --gray-950: #030712;

    /* 语义色 */
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --info: #3B82F6;

    /* 背景色 */
    --bg-white: #FFFFFF;
    --bg-gray: #F8FAFC;
    --bg-slate: #F1F5F9;
    --bg-dark: #0F172A;
    --bg-darker: #020617;

    /* 文字色 */
    --text-primary: #111827;
    --text-secondary: #374151;
    --text-tertiary: #6B7280;
    --text-muted: #9CA3AF;
    --text-white: #FFFFFF;
    --text-white-80: rgba(255, 255, 255, 0.8);
    --text-white-60: rgba(255, 255, 255, 0.6);

    /* 边框色 */
    --border-light: #E5E7EB;
    --border-medium: #D1D5DB;
    --border-primary: rgba(37, 99, 235, 0.3);

    /* 阴影系统 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-primary: 0 10px 40px -10px rgba(37, 99, 235, 0.4);
    --shadow-purple: 0 10px 40px -10px rgba(139, 92, 246, 0.4);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);

    /* 圆角系统 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;

    /* 间距系统 (4px base) */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;
    --space-32: 128px;

    /* 字体系统 - 免费常规字体 */
    --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Heiti SC", "WenQuanYi Micro Hei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
    --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", Consolas, Monaco, monospace;

    /* 字号系统 */
    --text-xs: 12px;
    --text-sm: 14px;
    --text-base: 16px;
    --text-lg: 18px;
    --text-xl: 20px;
    --text-2xl: 24px;
    --text-3xl: 30px;
    --text-4xl: 36px;
    --text-5xl: 48px;
    --text-6xl: 60px;
    --text-7xl: 72px;

    /* 字重 */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    /* 行高 */
    --leading-tight: 1.25;
    --leading-normal: 1.6;
    --leading-relaxed: 1.8;

    /* 过渡动画 */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* 容器宽度 */
    --container-max: 1280px;
    --container-padding: 24px;

    /* 导航高度 */
    --nav-height: 72px;
    --topbar-height: 40px;

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-toast: 500;
}

/* ==================== 基础重置 ==================== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background-color: var(--bg-white);
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--text-primary);
    text-wrap: balance;
}

p {
    margin: 0;
    color: var(--text-secondary);
}

ul, ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ==================== 工具类 ==================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mt-30 { margin-top: var(--space-8); }
.mt-50 { margin-top: var(--space-12); }
.ml-20 { margin-left: var(--space-5); }

/* 滚动动画元素初始状态 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}

.scroll-reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
}

/* 延迟动画 */
.delay-1 { transition-delay: 100ms; }
.delay-2 { transition-delay: 200ms; }
.delay-3 { transition-delay: 300ms; }
.delay-4 { transition-delay: 400ms; }
.delay-5 { transition-delay: 500ms; }

/* ==================== 顶部栏 ==================== */
.top-bar {
    background: var(--gradient-primary);
    color: var(--text-white);
    height: var(--topbar-height);
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.top-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.top-bar .row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.top-bar-left,
.top-bar-right {
    display: flex;
    align-items: center;
    gap: var(--space-5);
}

.top-bar span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.top-bar i {
    font-size: var(--text-sm);
}

.top-bar a {
    color: var(--text-white);
    opacity: 0.9;
    transition: opacity var(--transition-fast);
}

.top-bar a:hover {
    opacity: 1;
}

/* ==================== 导航栏 ==================== */
.navbar-jinyun {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: none;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 0;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: var(--z-fixed);
    transition: box-shadow var(--transition-normal),
                background var(--transition-normal),
                height var(--transition-normal);
}

.navbar-jinyun.nav-scrolled {
    box-shadow: var(--shadow-md);
    height: 64px;
    background: rgba(255, 255, 255, 0.98);
}

.navbar-jinyun .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 100%;
}

.navbar-header {
    display: flex;
    align-items: center;
    margin: 0;
    float: none;
    height: 100%;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--text-primary) !important;
    text-decoration: none;
    padding: 0;
    height: auto;
    line-height: 1;
    margin: 0;
}

@media (min-width: 769px) {
    #navbar-collapse {
        display: flex !important;
        align-items: center;
    }

#navbar-collapse .navbar-nav {
    display: flex;
    align-items: center;
    margin: 0;
    padding: 0;
    list-style: none;
}

#navbar-collapse .navbar-nav > li {
    position: relative;
    margin-left: var(--space-6);
}

#navbar-collapse .navbar-nav > li:first-child {
    margin-left: 0;
}

#navbar-collapse .navbar-nav > li > a {
    display: block;
    padding: 8px 0;
    color: var(--text-primary) !important;
    font-size: 15px;
    font-weight: var(--font-medium);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

#navbar-collapse .navbar-nav > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

#navbar-collapse .navbar-nav > li > a:hover::after,
#navbar-collapse .navbar-nav > li.active > a::after {
    width: 100%;
}

#navbar-collapse .navbar-nav > li.active > a,
#navbar-collapse .navbar-nav > li > a:hover {
    color: var(--primary) !important;
}

}

.navbar-brand .brand-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: var(--font-extrabold);
    letter-spacing: -0.5px;
}

.navbar-brand img {
    height: 56px;
    width: auto;
    transition: height var(--transition-normal);
}

.navbar-jinyun.nav-scrolled .navbar-brand img {
    height: 48px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.nav-menu > li {
    position: relative;
}

.nav-menu > li > a {
    display: inline-flex;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary) !important;
    border-radius: var(--radius-md);
    transition: color var(--transition-fast),
                background-color var(--transition-fast);
    position: relative;
}

.nav-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transform: translateX(-50%);
    transition: width var(--transition-normal);
}

.nav-menu > li > a:hover,
.nav-menu > li.active > a {
    color: var(--primary) !important;
    background: var(--primary-50);
}

.nav-menu > li.active > a::after,
.nav-menu > li > a:hover::after {
    width: calc(100% - 32px);
}

/* 移动端关闭菜单按钮 - 默认隐藏 */
.mobile-nav-close {
    display: none;
}

/* 移动端菜单按钮 */
.navbar-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: none;
    background: transparent;
    border-radius: var(--radius-lg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    z-index: 100;
}

.navbar-toggle:hover {
    background: var(--gray-100);
}

.navbar-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.navbar-toggle .icon-bar {
    display: block;
    width: 22px;
    height: 2.5px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all 0.35s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    transform-origin: center;
}

.navbar-toggle:not(.collapsed) {
    background: var(--gray-100);
}

.navbar-toggle:not(.collapsed) .icon-bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background: var(--primary);
}

.navbar-toggle:not(.collapsed) .icon-bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.navbar-toggle:not(.collapsed) .icon-bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background: var(--primary);
}

/* 移动端导航遮罩 */
.nav-overlay {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: calc(var(--z-fixed) - 1);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.nav-overlay.active {
    display: block;
    opacity: 1;
}

/* ==================== 按钮系统 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 12px 28px;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    line-height: 1.5;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-fast),
                box-shadow var(--transition-fast),
                background var(--transition-fast),
                color var(--transition-fast);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
    color: var(--text-white);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--primary);
    border: 1.5px solid var(--border-primary);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--primary-50);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-white {
    background: var(--text-white);
    color: var(--primary);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    color: var(--primary-dark);
}

.btn-lg {
    padding: 16px 40px;
    font-size: var(--text-base);
}

.btn-sm {
    padding: 8px 20px;
    font-size: var(--text-sm);
}

/* 脉冲动画 */
@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    }
    50% {
        box-shadow: 0 4px 30px rgba(102, 126, 234, 0.7);
    }
}

.btn-pulse {
    animation: pulse-glow 2s ease-in-out infinite;
}

/* ==================== 区块通用 ==================== */
.section {
    padding: var(--space-24) 0;
    position: relative;
}

.section-sm {
    padding: var(--space-16) 0;
}

.section-lg {
    padding: var(--space-32) 0;
}

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

.section-bg-soft {
    background: var(--gradient-soft);
}

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

.section-bg-gradient {
    background: var(--gradient-primary);
    color: var(--text-white);
}

/* 装饰元素 */
.section-decoration {
    position: absolute;
    pointer-events: none;
    opacity: 0.5;
}

.deco-blur {
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    pointer-events: none;
}

.deco-blur-primary {
    background: var(--primary);
}

.deco-blur-purple {
    background: var(--secondary);
}

/* 区块标题 */
.section-title {
    margin-bottom: var(--space-12);
    text-align: center;
}

.section-title .eyebrow {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--primary);
    background: var(--primary-50);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title h2 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.section-title p {
    font-size: var(--text-lg);
    color: var(--text-tertiary);
    max-width: 600px;
    margin: 0 auto;
}

.section-bg-dark .section-title h2,
.section-bg-gradient .section-title h2 {
    color: var(--text-white);
}

.section-bg-dark .section-title p,
.section-bg-gradient .section-title p {
    color: var(--text-white-80);
}

.section-bg-dark .section-title .eyebrow {
    background: rgba(255,255,255,0.15);
    color: var(--text-white);
}

/* ==================== Hero/Banner ==================== */
.banner-section {
    position: relative;
    overflow: hidden;
}

.banner-swiper {
    position: relative;
    width: 100%;
}

.banner-swiper .swiper-slide {
    position: relative;
    width: 100%;
}

.banner-img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
}

.banner-link {
    display: block;
    width: 100%;
}

.banner-link img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* Banner Navigation Arrows */
.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 56px;
    height: 56px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    --swiper-navigation-size: 0;
}

.banner-arrow::after {
    display: none;
}

.banner-arrow:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-50%) scale(1.08);
}

.banner-arrow-prev {
    left: 40px;
}

.banner-arrow-next {
    right: 40px;
}

/* Banner Dots */
.banner-dots {
    position: absolute;
    bottom: 40px;
    left: 50% !important;
    right: auto !important;
    transform: translateX(-50%) !important;
    z-index: 10;
    display: flex;
    gap: 12px;
    width: auto !important;
    text-align: center;
}

.banner-dots .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.5);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
    opacity: 1;
    margin: 0 !important;
}

.banner-dots .swiper-pagination-bullet:hover {
    background: rgba(255, 255, 255, 0.5);
}

.banner-dots .swiper-pagination-bullet-active {
    background: #fff;
    border-color: #fff;
    transform: scale(1.2);
}

/* 滚动指示器 - 隐藏，由dots替代 */
.scroll-indicator {
    display: none;
}

@keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-8px); }
}

/* ==================== 核心优势 ==================== */
.advantages-section {
    padding: var(--space-24) 0;
    background: var(--bg-gray);
    position: relative;
    overflow: hidden;
}

.advantages-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-medium), transparent);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.advantage-item {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-8) var(--space-6);
    text-align: center;
    position: relative;
    border: 1px solid var(--border-light);
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal),
                border-color var(--transition-normal);
    overflow: hidden;
}

.advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.advantage-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.advantage-item:hover::before {
    transform: scaleX(1);
}

.advantage-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-5);
    background: var(--gradient-soft);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--primary);
    position: relative;
    transition: all var(--transition-normal);
}

.advantage-item:hover .advantage-icon {
    background: var(--gradient-primary);
    color: var(--text-white);
    transform: scale(1.1) rotate(-5deg);
    box-shadow: var(--shadow-primary);
}

.advantage-item h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.advantage-item p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    line-height: var(--leading-relaxed);
}

/* ==================== 服务项目 ==================== */
.services-section {
    padding: var(--space-24) 0;
    background: var(--bg-white);
    position: relative;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.service-item {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal);
    position: relative;
    border: 1px solid var(--border-light);
}

.service-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.service-img {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-item:hover .service-img img {
    transform: scale(1.08);
}

.service-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.3) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.service-item:hover .service-img::after {
    opacity: 1;
}

.service-badge {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    background: var(--gradient-primary);
    color: var(--text-white);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    z-index: 2;
}

.service-content {
    padding: var(--space-6);
    position: relative;
}

.service-content h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-3);
}

.service-content h3 a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.service-content h3 a:hover {
    color: var(--primary);
}

.service-content p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-4);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--primary);
    transition: gap var(--transition-fast);
}

.service-link:hover {
    gap: 10px;
}

.service-link i {
    font-size: 12px;
    transition: transform var(--transition-fast);
}

.service-link:hover i {
    transform: translateX(3px);
}

/* ==================== 工程项目 / 案例展示 ==================== */
.projects-section {
    padding: var(--space-24) 0;
    background: var(--bg-gray);
    position: relative;
}

.cases-section {
    padding: var(--space-24) 0;
    background: var(--bg-white);
    position: relative;
}

.projects-grid,
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.project-item,
.case-item {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal);
    border: 1px solid var(--border-light);
}

.project-item:hover,
.case-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.project-img,
.case-img {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.project-img img,
.case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-item:hover .project-img img,
.case-item:hover .case-img img {
    transform: scale(1.1);
}

.project-overlay,
.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.9) 0%, rgba(118, 75, 162, 0.9) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.project-item:hover .project-overlay,
.case-item:hover .case-overlay {
    opacity: 1;
}

.project-overlay a,
.case-overlay a {
    transform: translateY(20px);
    transition: transform var(--transition-normal);
    transition-delay: 100ms;
}

.project-item:hover .project-overlay a,
.case-item:hover .case-overlay a {
    transform: translateY(0);
}

.project-info,
.case-info {
    padding: var(--space-5) var(--space-6);
}

.project-info h3,
.case-info h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.project-info h3 a,
.case-info h3 a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.project-info h3 a:hover,
.case-info h3 a:hover {
    color: var(--primary);
}

.project-info p,
.case-info p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-bottom: 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.project-info p i,
.case-info p i {
    color: var(--primary);
    font-size: 14px;
}

/* 查看更多按钮区域 */
.view-more {
    text-align: center;
    margin-top: var(--space-10);
}

/* ==================== 关于我们 ==================== */
.about-section {
    padding: var(--space-24) 0;
    background: var(--gradient-primary);
    color: var(--text-white);
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.about-section::after {
    content: '';
    position: absolute;
    bottom: -300px;
    left: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.3) 0%, transparent 70%);
    border-radius: 50%;
}

.about-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
    position: relative;
    z-index: 1;
}

.about-content h2 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--text-white);
    margin-bottom: var(--space-6);
    line-height: 1.2;
}

.about-content > p {
    font-size: var(--text-lg);
    color: var(--text-white-80);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
}

.about-features {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-8);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

.about-features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--text-white-80);
    font-size: var(--text-base);
}

.about-features li i {
    width: 24px;
    height: 24px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--text-white);
    flex-shrink: 0;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.stat-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-xl);
    padding: var(--space-6) var(--space-5);
    text-align: center;
    transition: transform var(--transition-normal),
                background var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.15);
}

.stat-number {
    display: block;
    font-size: var(--text-4xl);
    font-weight: var(--font-extrabold);
    color: #ffffff;
    line-height: 1;
    margin-bottom: var(--space-2);
    font-variant-numeric: tabular-nums;
}

.stat-text {
    font-size: var(--text-sm);
    color: var(--text-white-80);
    font-weight: var(--font-medium);
}

/* ==================== 新闻动态 ==================== */
.news-section {
    padding: var(--space-24) 0;
    background: var(--bg-gray);
    position: relative;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.news-item {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal);
}

.news-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.news-img {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.news-category {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    background: var(--primary);
    color: var(--text-white);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    z-index: 2;
}

.news-content {
    padding: var(--space-6);
    position: relative;
}

.news-date {
    position: absolute;
    top: -24px;
    right: var(--space-5);
    background: var(--gradient-primary);
    color: var(--text-white);
    padding: 8px 14px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-md);
    min-width: 60px;
}

.news-date .day {
    display: block;
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    line-height: 1;
}

.news-date .month {
    font-size: 11px;
    opacity: 0.9;
}

.news-content h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-3);
    margin-top: var(--space-2);
    line-height: 1.5;
}

.news-content h3 a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.news-content > p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    line-height: var(--leading-relaxed);
    margin-bottom: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==================== 页面头部 ==================== */
.page-header-section {
    padding: calc(var(--nav-height) + var(--space-16)) 0 var(--space-16);
    background: var(--gradient-soft);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(102, 126, 234, 0.1) 0%, transparent 50%);
}

.page-header-content {
    position: relative;
    z-index: 1;
}

.page-header-content h1 {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.page-header-content p {
    font-size: var(--text-xl);
    color: var(--text-tertiary);
    max-width: 700px;
    margin: 0 auto;
}

/* 页面Hero大标题区 */
.page-hero {
    padding: calc(var(--nav-height) + var(--space-20)) 0 var(--space-16);
    background: var(--gradient-soft);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 30%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
}

.page-hero .container {
    position: relative;
    z-index: 1;
}

.page-hero-eyebrow {
    display: inline-block;
    padding: 8px 20px;
    background: var(--primary-50);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-6);
}

.page-hero h1 {
    font-size: var(--text-6xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: var(--space-5);
    max-width: 800px;
}

.page-hero h1 .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-hero .hero-desc {
    font-size: var(--text-xl);
    color: var(--text-tertiary);
    line-height: 1.8;
    max-width: 700px;
    margin-bottom: var(--space-8);
}

/* 数据统计区 */
.stats-section {
    padding: var(--space-16) 0;
    background: var(--bg-white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
}

.stat-item {
    text-align: center;
    padding: var(--space-6);
}

.stat-number {
    font-size: var(--text-5xl);
    font-weight: var(--font-extrabold);
    color: #ffffff;
    line-height: 1;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-base);
    color: var(--text-tertiary);
    font-weight: var(--font-medium);
}

/* 服务模块 - 六宫格 */
.service-modules-section {
    padding: var(--space-24) 0;
    background: var(--bg-gray);
}

.service-modules-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    counter-reset: service-counter;
}

.service-module-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    position: relative;
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
    counter-increment: service-counter;
}

.service-module-card::before {
    content: counter(service-counter, decimal-leading-zero);
    position: absolute;
    top: var(--space-6);
    right: var(--space-6);
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--primary-100);
    line-height: 1;
}

.service-module-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-200);
}

.service-module-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    background: var(--gradient-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    transition: all var(--transition-normal);
}

.service-module-icon i {
    font-size: 28px;
    color: var(--primary);
}

.service-module-card:hover .service-module-icon {
    background: var(--gradient-primary);
}

.service-module-card:hover .service-module-icon i {
    color: var(--text-white);
}

.service-module-card h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.service-module-card p {
    font-size: var(--text-base);
    color: var(--text-tertiary);
    line-height: 1.7;
}

/* 三层含义/大卡片 */
.meaning-section {
    padding: var(--space-24) 0;
    background: var(--bg-white);
}

.meaning-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.meaning-item {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: var(--space-8);
    padding: var(--space-8);
    background: var(--bg-gray);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    align-items: start;
}

.meaning-item:hover {
    background: var(--gradient-soft);
    transform: translateX(8px);
}

.meaning-number {
    font-size: var(--text-6xl);
    font-weight: var(--font-extrabold);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    text-align: center;
}

.meaning-content h3 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.meaning-content p {
    font-size: var(--text-lg);
    color: var(--text-tertiary);
    line-height: 1.9;
}

/* 核心基因/QTOI模型 */
.gene-section {
    padding: var(--space-24) 0;
    background: var(--bg-gray);
}

.gene-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.gene-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-8) var(--space-6);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
    position: relative;
}

.gene-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-200);
}

.gene-letter {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--text-white);
}

.gene-card h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.gene-card p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    line-height: 1.7;
}

/* 价值主张大卡片 */
.value-props-section {
    padding: var(--space-24) 0;
    background: var(--bg-white);
}

.value-prop-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-10);
}

.value-prop-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--space-8);
    align-items: start;
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    background: var(--gradient-soft);
    transition: all var(--transition-normal);
}

.value-prop-item:hover {
    background: var(--primary-50);
    box-shadow: var(--shadow-md);
}

.value-prop-num {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-white);
}

.value-prop-content h3 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.value-prop-content > p {
    font-size: var(--text-lg);
    color: var(--text-tertiary);
    line-height: 1.9;
    margin-bottom: var(--space-4);
}

.value-prop-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.value-prop-stat {
    padding: var(--space-2) var(--space-4);
    background: var(--bg-white);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    color: var(--primary);
    font-weight: var(--font-semibold);
}

/* 承诺区域 */
.promises-section {
    padding: var(--space-24) 0;
    background: var(--bg-gray);
}

.promises-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.promise-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-8) var(--space-6);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.promise-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-200);
}

.promise-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--gradient-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    transition: all var(--transition-normal);
}

.promise-icon i {
    font-size: 24px;
    color: var(--primary);
}

.promise-card:hover .promise-icon {
    background: var(--gradient-primary);
}

.promise-card:hover .promise-icon i {
    color: var(--text-white);
}

.promise-card h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.promise-card p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    line-height: 1.7;
}

/* 关于公司介绍 */
.about-company-section {
    padding: var(--space-24) 0;
    background: var(--bg-white);
}

.about-company-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.about-company-image {
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

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

.about-company-text h2 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.about-company-text p {
    font-size: var(--text-lg);
    color: var(--text-tertiary);
    line-height: 2;
    margin-bottom: var(--space-4);
}

.about-company-text p:last-child {
    margin-bottom: 0;
}

/* 荣誉资质网格 */
.honors-showcase-section {
    padding: var(--space-24) 0;
    background: var(--bg-gray);
}

.honors-showcase-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.honor-showcase-item {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-4);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.honor-showcase-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-200);
}

.honor-showcase-item img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-3);
}

.honor-showcase-item h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: 0;
}

/* CTA联系区域 */
.contact-cta-section {
    padding: var(--space-20) 0;
    background: var(--gradient-primary);
    color: var(--text-white);
    position: relative;
    overflow: hidden;
}

.contact-cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.contact-cta-section .container {
    position: relative;
    z-index: 1;
}

.contact-cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-10);
}

.contact-cta-content h2 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--text-white);
    margin-bottom: var(--space-4);
}

.contact-cta-content p {
    font-size: var(--text-xl);
    color: var(--text-white-80);
}

.contact-cta-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    max-width: 800px;
    margin: 0 auto;
    background: rgba(255,255,255,0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    backdrop-filter: blur(10px);
}

.contact-cta-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.contact-cta-item i {
    font-size: 20px;
    color: var(--text-white);
    margin-top: 4px;
    flex-shrink: 0;
}

.contact-cta-item h4 {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--text-white-80);
    margin-bottom: var(--space-1);
}

.contact-cta-item p {
    font-size: var(--text-base);
    color: var(--text-white);
    font-weight: var(--font-medium);
    margin: 0;
    word-break: break-all;
}

/* ==================== AI服务/特性卡片 ==================== */
.features-grid,
.enterprise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.feature-card,
.enterprise-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.feature-card:hover,
.enterprise-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-200);
}

.feature-icon,
.enterprise-icon {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-xl);
    background: var(--gradient-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-5);
    transition: all var(--transition-normal);
}

.feature-icon i,
.enterprise-icon i {
    font-size: 28px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card:hover .feature-icon,
.enterprise-card:hover .enterprise-icon {
    background: var(--gradient-primary);
}

.feature-card:hover .feature-icon i,
.enterprise-card:hover .enterprise-icon i {
    background: var(--gradient-white);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-card h3,
.enterprise-card h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.feature-card p,
.enterprise-card p {
    font-size: var(--text-base);
    color: var(--text-tertiary);
    line-height: 1.6;
}

/* ==================== 架构/流程卡片 ==================== */
.arch-grid,
.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.arch-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.arch-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-200);
}

.arch-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-5);
}

.arch-icon i {
    font-size: 32px;
    color: var(--text-white);
}

.arch-card h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.arch-card p {
    font-size: var(--text-base);
    color: var(--text-tertiary);
    line-height: 1.6;
}

/* 流程步骤 */
.process-step {
    text-align: center;
    padding: var(--space-6);
}

.step-number {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--text-white);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
}

.process-step h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.process-step p {
    font-size: var(--text-base);
    color: var(--text-tertiary);
}

/* ==================== 应用场景 ==================== */
.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.scenario-item {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.scenario-item:hover {
    border-color: var(--primary-200);
    box-shadow: var(--shadow-md);
}

.scenario-item i {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: var(--space-3);
}

.scenario-item h4 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.scenario-item p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

/* ==================== 部署模式 ==================== */
.modes-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.mode-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.mode-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-200);
}

.mode-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--gradient-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-5);
    transition: all var(--transition-normal);
}

.mode-icon i {
    font-size: 28px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mode-card:hover .mode-icon {
    background: var(--gradient-primary);
}

.mode-card:hover .mode-icon i {
    background: var(--gradient-white);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.mode-card h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.mode-card p {
    font-size: var(--text-base);
    color: var(--text-tertiary);
    line-height: 1.6;
}

/* ==================== 交付保障 ==================== */
.guarantee-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.guarantee-item {
    text-align: center;
    padding: var(--space-6);
}

.guarantee-item i {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: var(--space-3);
}

.guarantee-item h4 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.guarantee-item p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

/* ==================== 团队价值 ==================== */
.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.value-item {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.value-item:hover {
    border-color: var(--primary-200);
    box-shadow: var(--shadow-md);
}

.value-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
}

.value-icon i {
    font-size: 24px;
    color: var(--text-white);
}

.value-item h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.value-item p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    line-height: 1.5;
}

/* ==================== 加入我们 ==================== */
.join-section {
    padding: var(--space-20) 0;
    background: var(--gradient-primary);
    text-align: center;
}

.join-content h2 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--text-white);
    margin-bottom: var(--space-3);
}

.join-content p {
    font-size: var(--text-xl);
    color: var(--text-white-80);
    margin-bottom: var(--space-8);
}

/* ==================== 团队技能标签 ==================== */
.team-skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-3);
    justify-content: center;
}

.skill-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-50);
    color: var(--primary);
    font-size: var(--text-xs);
    border-radius: var(--radius-full);
}

/* CTA区域 */
.cta-section {
    padding: var(--space-24) 0;
    background: var(--bg-dark);
    color: var(--text-white);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(102, 126, 234, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(139, 92, 246, 0.3) 0%, transparent 50%);
}

.cta-section::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    color: var(--text-white);
    margin-bottom: var(--space-4);
    line-height: 1.2;
}

.cta-content h2 .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-content p {
    font-size: var(--text-xl);
    color: var(--text-white-80);
    margin-bottom: var(--space-8);
}

/* ==================== 页脚 ==================== */
.footer-main {
    background: var(--gradient-primary);
    color: var(--text-white);
    padding: var(--space-20) 0 0;
    position: relative;
    overflow: hidden;
}

.footer-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(139, 92, 246, 0.4) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(37, 99, 235, 0.4) 0%, transparent 50%);
}

.footer-main > .container {
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-10);
    margin-bottom: var(--space-12);
}

.footer-col h4 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-white);
    margin-bottom: var(--space-6);
    position: relative;
    padding-bottom: var(--space-3);
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 32px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.footer-about .footer-logo {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-white);
    margin-bottom: var(--space-4);
    display: inline-block;
}

.footer-about p {
    font-size: var(--text-sm);
    color: var(--text-white);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-5);
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--gradient-primary);
    color: var(--text-white);
    transform: translateY(-3px);
}

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

.footer-links li {
    margin-bottom: var(--space-3);
}

.footer-links li a {
    color: var(--text-white);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-links li a::before {
    content: '›';
    font-size: var(--text-lg);
    line-height: 1;
    opacity: 0;
    transform: translateX(-4px);
    transition: all var(--transition-fast);
}

.footer-links li a:hover {
    color: var(--text-white);
    padding-left: 4px;
}

.footer-links li a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    font-size: var(--text-sm);
    color: var(--text-white);
}

.footer-contact li i {
    width: 36px;
    height: 36px;
    background: rgba(102, 126, 234, 0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-white);
    flex-shrink: 0;
}

.footer-qrcode {
    display: none;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-6) 0;
    text-align: center;
}

.footer-bottom p {
    font-size: var(--text-sm);
    color: var(--text-white);
    margin-bottom: 0;
}

.footer-bottom a {
    color: var(--text-white);
    transition: color var(--transition-fast);
}

.footer-bottom a:hover {
    color: var(--text-white);
}

/* 返回顶部 + 悬浮工具 */
.floating-tools {
    position: fixed;
    right: 30px;
    bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: var(--z-toast);
}

.floating-tool-item {
    position: relative;
}

.floating-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #fff;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    cursor: pointer;
    border: none;
    transition: all var(--transition-normal);
}

.floating-btn:hover {
    background: var(--gradient-primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
}

.floating-tip {
    position: absolute;
    right: 60px;
    top: 50%;
    transform: translateY(-50%) translateX(10px);
    background: #fff;
    border-radius: var(--radius-md);
    padding: 12px 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    white-space: nowrap;
    pointer-events: none;
}

.floating-tool-item:hover .floating-tip {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
}

.floating-tip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border-left: 6px solid #fff;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
}

.floating-tip-title {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.floating-tip-phone {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--danger);
}

.floating-wechat-tip {
    text-align: center;
    white-space: normal;
    padding: 12px;
    width: 150px;
}

.floating-wechat-tip img {
    display: block;
    width: 120px;
    height: 120px;
    border-radius: var(--radius-sm);
    margin: 8px auto 0;
    max-width: none;
}

.back-to-top {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: var(--shadow-primary);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.5);
    color: var(--text-white);
}

/* ==================== 内页Banner ==================== */
.page-banner {
    padding: var(--space-20) 0;
    color: var(--text-white);
    position: relative;
    overflow: hidden;
    background: var(--gradient-primary);
}

.page-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(139, 92, 246, 0.4) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(37, 99, 235, 0.4) 0%, transparent 50%);
}

.page-banner .container {
    position: relative;
    z-index: 1;
}

.page-title h1 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--text-white);
    margin-bottom: var(--space-3);
}

.breadcrumb {
    background: transparent;
    padding: 0;
    margin: 0;
    font-size: var(--text-sm);
}

.breadcrumb a {
    color: var(--text-white-80);
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--text-white);
}

.breadcrumb span {
    color: var(--text-white);
}

/* ==================== 联系页面 ==================== */
.contact-page-section {
    padding: var(--space-24) 0;
    background: var(--bg-gray);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-8);
}

.contact-form-wrapper {
    background: var(--bg-white);
    padding: var(--space-10);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

.contact-form-wrapper h2 {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
}

.contact-form-wrapper > p {
    color: var(--text-tertiary);
    margin-bottom: var(--space-8);
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
    margin-bottom: var(--space-5);
}

.contact-form .form-group {
    margin-bottom: var(--space-5);
}

.contact-form label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.contact-form label .required {
    color: var(--error);
    margin-left: 2px;
}

.contact-form .form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: var(--text-base);
    font-family: inherit;
    color: var(--text-primary);
    background: var(--gray-50);
    border: 1.5px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast),
                box-shadow var(--transition-fast),
                background var(--transition-fast);
}

.contact-form .form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-white);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.contact-form textarea.form-control {
    resize: vertical;
    min-height: 140px;
}

.contact-form .form-control::placeholder {
    color: var(--text-muted);
}

.contact-info-wrapper {
    background: var(--gradient-primary);
    padding: var(--space-10);
    border-radius: var(--radius-2xl);
    color: var(--text-white);
    position: relative;
    overflow: hidden;
}

.contact-info-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
}

.contact-info-wrapper h3 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-white);
    margin-bottom: var(--space-2);
    position: relative;
}

.contact-info-wrapper > p {
    color: var(--text-white-80);
    margin-bottom: var(--space-8);
    position: relative;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
    position: relative;
}

.contact-info-item i {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-white);
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.contact-info-item:hover i {
    transform: scale(1.1);
}

.contact-info-content h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-white);
    margin-bottom: 4px;
}

.contact-info-content p {
    color: var(--text-white-80);
    font-size: var(--text-sm);
    margin-bottom: 0;
}

.qrcode-box {
    text-align: center;
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
}

.qrcode-box img {
    max-width: 120px;
    border-radius: var(--radius-md);
    margin: 0 auto var(--space-3);
    background: var(--text-white);
    padding: 8px;
}

.qrcode-box p {
    font-size: var(--text-sm);
    color: var(--text-white-80);
    margin-bottom: 0;
}

/* 地图区域 */
.map-section {
    margin-top: var(--space-16);
}

.map-section h2 {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    text-align: center;
    margin-bottom: var(--space-8);
}

#map-container {
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

/* ==================== 关于页面 ==================== */
.about-page-section {
    padding: var(--space-24) 0;
    background: var(--bg-white);
}

.about-page-wrapper {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: var(--space-10);
}

.about-content-wrapper {
    background: var(--bg-white);
    padding: var(--space-10);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.about-content-wrapper h2 {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-6);
    position: relative;
    padding-bottom: var(--space-4);
}

.about-content-wrapper h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.about-text {
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    font-size: var(--text-base);
}

.about-text p {
    margin-bottom: var(--space-4);
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-sidebar {
    background: var(--bg-gray);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    height: fit-content;
    position: sticky;
    top: calc(var(--nav-height) + var(--space-6));
}

.sidebar-widget {
    margin-bottom: var(--space-6);
}

.sidebar-widget:last-child {
    margin-bottom: 0;
}

.sidebar-widget h4 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

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

.contact-list li {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--border-light);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.contact-list li:last-child {
    border-bottom: none;
}

.contact-list li i {
    color: var(--primary);
    width: 20px;
    text-align: center;
    font-size: 14px;
}

/* 发展历程 */
.history-section {
    padding: var(--space-24) 0;
    background: var(--bg-gray);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: var(--space-10);
    width: 50%;
    padding-right: var(--space-10);
}

.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: var(--space-10);
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 8px;
    right: -9px;
    width: 18px;
    height: 18px;
    background: var(--gradient-primary);
    border-radius: 50%;
    border: 3px solid var(--bg-white);
    box-shadow: 0 0 0 3px var(--primary);
    z-index: 1;
}

.timeline-item:nth-child(even)::before {
    right: auto;
    left: -9px;
}

.timeline-content {
    background: var(--bg-white);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal);
}

.timeline-content:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.timeline-year {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: var(--primary);
    background: var(--primary-50);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-3);
}

.timeline-content h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.timeline-content p {
    color: var(--text-tertiary);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    margin-bottom: 0;
}

/* 企业文化 */
.culture-section {
    padding: var(--space-24) 0;
    background: var(--bg-white);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.culture-card {
    background: var(--gradient-soft);
    border-radius: var(--radius-2xl);
    padding: var(--space-10) var(--space-8);
    text-align: center;
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal);
    border: 1px solid var(--border-light);
}

.culture-card:nth-child(2) {
    background: linear-gradient(135deg, #F5F3FF 0%, #EDE9FE 100%);
}

.culture-card:nth-child(3) {
    background: linear-gradient(135deg, #FDF2F8 0%, #FCE7F3 100%);
}

.culture-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.culture-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-5);
    background: var(--bg-white);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    box-shadow: var(--shadow-md);
}

.culture-card h3 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-3);
}

.culture-card p {
    color: var(--text-tertiary);
    line-height: var(--leading-relaxed);
    margin-bottom: 0;
}

/* 荣誉资质 */
.honors-section {
    padding: var(--space-24) 0;
    background: var(--bg-gray);
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.honor-item {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal);
}

.honor-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.honor-item img {
    height: 120px;
    object-fit: contain;
    margin: 0 auto var(--space-4);
    transition: transform var(--transition-normal);
}

.honor-item:hover img {
    transform: scale(1.05);
}

.honor-item h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.honor-date {
    color: var(--text-tertiary);
    font-size: var(--text-sm);
}

/* 团队展示 */
.team-section {
    padding: var(--space-24) 0;
    background: var(--bg-white);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.team-item {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-8) var(--space-6);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal);
}

.team-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.team-img {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto var(--space-5);
    padding: 3px;
    background: var(--gradient-primary);
    transition: transform var(--transition-normal);
}

.team-item:hover .team-img {
    transform: scale(1.05);
}

.team-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.team-item h4 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

.team-position {
    color: var(--primary);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    margin-bottom: var(--space-3);
}

.team-intro {
    color: var(--text-tertiary);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    margin-bottom: 0;
}

/* ==================== 列表页面 ==================== */
.service-list-section,
.project-list-section,
.case-list-section,
.news-list-section {
    padding: var(--space-24) 0;
    background: var(--bg-gray);
    min-height: 500px;
}

.list-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

/* ==================== 详情页面 ==================== */
.service-detail-section,
.project-detail-section,
.case-detail-section,
.news-detail-section {
    padding: var(--space-24) 0;
    background: var(--bg-gray);
}

.detail-content {
    background: var(--bg-white);
    padding: var(--space-10);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
}

.detail-content h1 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-6);
    line-height: 1.3;
}

.detail-meta {
    color: var(--text-tertiary);
    font-size: var(--text-sm);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-5);
}

.detail-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.detail-meta i {
    color: var(--primary);
    font-size: 14px;
}

.detail-body {
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
    font-size: var(--text-base);
}

.detail-body h2 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-top: var(--space-8);
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.detail-body h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-top: var(--space-6);
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.detail-body p {
    margin-bottom: var(--space-4);
    color: var(--text-secondary);
}

.detail-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin: var(--space-6) 0;
}

.detail-body ul,
.detail-body ol {
    margin-bottom: var(--space-4);
    padding-left: var(--space-6);
}

.detail-body li {
    margin-bottom: var(--space-2);
    color: var(--text-secondary);
}

/* 详情图集 */
.detail-gallery {
    margin-top: var(--space-12);
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-light);
}

.gallery-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-6);
    color: var(--text-primary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4 / 3;
    background: var(--bg-gray);
    cursor: pointer;
    transition: transform var(--transition-normal),
                box-shadow var(--transition-normal);
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* ==================== Toast通知 ==================== */
.toast-container {
    position: fixed;
    top: calc(var(--nav-height) + var(--topbar-height) + 20px);
    right: 20px;
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.toast {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--space-4) var(--space-5);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-width: 300px;
    max-width: 400px;
    transform: translateX(calc(100% + 40px));
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.3s ease;
    border-left: 4px solid var(--primary);
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-success {
    border-left-color: var(--success);
}

.toast-error {
    border-left-color: var(--error);
}

.toast-warning {
    border-left-color: var(--warning);
}

.toast-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.toast-success .toast-icon {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.toast-error .toast-icon {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

.toast-warning .toast-icon {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    font-size: var(--text-sm);
    margin-bottom: 2px;
}

.toast-message {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-bottom: 0;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1280px) {
    :root {
        --container-max: 1024px;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    :root {
        --container-max: 768px;
        --text-6xl: 48px;
        --text-5xl: 36px;
        --text-4xl: 30px;
    }

    .services-grid,
    .projects-grid,
    .cases-grid,
    .news-grid,
    .list-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .features-grid,
    .enterprise-grid,
    .guarantee-grid,
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .arch-grid,
    .process-steps,
    .modes-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-wrapper {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .honors-grid,
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .culture-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .about-page-wrapper {
        grid-template-columns: 1fr;
    }

    .about-sidebar {
        position: static;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 60px !important;
        padding-right: 0 !important;
    }

    .timeline-item:nth-child(even) {
        margin-left: 0;
    }

    .timeline-item::before {
        left: 11px !important;
        right: auto !important;
    }
}

@media (max-width: 768px) {
    :root {
        --nav-height: 64px;
        --topbar-height: 0px;
        --text-6xl: 36px;
        --text-5xl: 30px;
        --text-4xl: 24px;
        --text-3xl: 22px;
        --space-24: 64px;
        --space-32: 80px;
    }

    .navbar-header {
        width: 100% !important;
        flex: 1 1 100% !important;
        justify-content: space-between;
    }

    .navbar-header::before,
    .navbar-header::after {
        display: none !important;
    }

    .navbar-toggle {
        display: flex;
        margin: 0;
    }

    .footer-qrcode {
        display: none !important;
    }

    .navbar-brand .brand-text {
        font-size: 18px;
    }

    .navbar-brand img {
        height: 44px;
    }

    /* 移动端导航菜单 - 默认隐藏 */
    #navbar-collapse {
        display: none !important;
        position: fixed !important;
        top: var(--nav-height) !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        width: 100% !important;
        height: calc(100vh - var(--nav-height)) !important;
        max-height: calc(100vh - var(--nav-height)) !important;
        background: var(--bg-white) !important;
        z-index: var(--z-fixed) !important;
        overflow-y: auto !important;
        padding: 0 !important;
        border: none !important;
        box-shadow: var(--shadow-lg) !important;
        transform: translateX(100%);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                    opacity 0.3s ease;
        opacity: 0;
    }

    /* 移动端导航菜单 - 打开状态 */
    #navbar-collapse.nav-open {
        display: block !important;
        transform: translateX(0);
        opacity: 1;
    }

    /* 关闭按钮 */
    .mobile-nav-close {
        display: flex !important;
        align-items: center;
        justify-content: center;
        width: 100%;
        padding: 16px;
        background: var(--bg-gray);
        border-top: 1px solid var(--border-light);
        cursor: pointer;
        font-size: 15px;
        color: var(--text-secondary);
        gap: 6px;
        position: sticky;
        bottom: 0;
        margin-top: auto;
    }

    .mobile-nav-close:hover {
        background: var(--gray-200);
    }

    #navbar-collapse::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 1px;
        background: var(--border-light);
        z-index: 1;
    }

    #navbar-collapse .navbar-nav,
    #navbar-collapse .nav {
        display: flex;
        flex-direction: column;
        width: 100%;
        padding: var(--space-2) 0 var(--space-6);
        margin: 0 !important;
        float: none !important;
        padding-left: var(--space-4);
    }

    #navbar-collapse .navbar-nav > li,
    #navbar-collapse .nav > li {
        width: 100%;
        margin: 0;
        border: none;
        position: relative;
        float: none !important;
        display: block !important;
    }

    #navbar-collapse .navbar-nav > li > a,
    #navbar-collapse .nav > li > a {
        display: flex !important;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: 16px var(--container-padding) !important;
        font-size: 17px !important;
        font-weight: var(--font-medium) !important;
        color: var(--text-primary) !important;
        background: transparent !important;
        border-radius: 0 !important;
        position: relative;
        transition: all var(--transition-fast);
        text-decoration: none !important;
        line-height: 1.5 !important;
    }

    #navbar-collapse .navbar-nav > li > a::after,
    #navbar-collapse .nav > li > a::after {
        display: none !important;
    }

    /* 移动端菜单项图标 */
    #navbar-collapse .navbar-nav > li > a::before,
    #navbar-collapse .nav > li > a::before {
        content: '';
        position: absolute;
        left: var(--container-padding);
        top: 50%;
        transform: translateY(-50%);
        width: 28px;
        height: 28px;
        background: var(--gradient-soft);
        border-radius: var(--radius-md);
        opacity: 0;
        transition: opacity var(--transition-fast);
    }

    /* 移动端活跃菜单项 */
    #navbar-collapse .navbar-nav > li.active > a,
    #navbar-collapse .nav > li.active > a {
        color: var(--primary) !important;
        font-weight: var(--font-semibold) !important;
        padding-left: calc(var(--container-padding) + 44px) !important;
    }

    #navbar-collapse .navbar-nav > li.active > a::before,
    #navbar-collapse .nav > li.active > a::before {
        opacity: 1;
        background: var(--gradient-primary);
    }

    /* 移动端菜单项hover效果 */
    #navbar-collapse .navbar-nav > li > a:hover,
    #navbar-collapse .nav > li > a:hover {
        background: var(--gray-50) !important;
        color: var(--primary) !important;
    }

    /* 菜单项分隔线 */
    #navbar-collapse .navbar-nav > li::after,
    #navbar-collapse .nav > li::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: var(--container-padding);
        right: var(--container-padding);
        height: 1px;
        background: var(--border-light);
    }

    #navbar-collapse .navbar-nav > li:last-child::after,
    #navbar-collapse .nav > li:last-child::after {
        display: none;
    }

    /* 移动端底部CTA按钮 */
    .nav-cta {
        padding: var(--space-6) var(--container-padding);
        background: var(--gradient-soft);
        margin-top: var(--space-4);
    }

    .nav-cta .btn {
        width: 100%;
        padding: 14px 24px;
        font-size: 16px;
    }

    .banner-arrow-prev {
        left: 10px;
    }

    .banner-arrow-next {
        right: 10px;
    }

    .banner-arrow {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .banner-dots {
        bottom: 15px;
    }

    .banner-dot {
        width: 10px;
        height: 10px;
    }

    .advantages-grid,
    .services-grid,
    .projects-grid,
    .cases-grid,
    .news-grid,
    .list-grid,
    .honors-grid,
    .team-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        margin-bottom: var(--space-8);
    }

    .section-title h2 {
        font-size: var(--text-3xl);
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: 1fr 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .contact-form-wrapper,
    .contact-info-wrapper,
    .about-content-wrapper {
        padding: var(--space-6);
    }

    .contact-form .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .detail-content {
        padding: var(--space-6);
    }

    .detail-content h1 {
        font-size: var(--text-3xl);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-title {
        font-size: var(--text-xl);
    }

    .back-to-top {
        right: 20px;
        bottom: 20px;
        width: 44px;
        height: 44px;
    }

    .btn-lg {
        padding: 14px 28px;
    }

    /* 新页面响应式 */
    .page-header-content h1 {
        font-size: var(--text-4xl);
    }

    .page-header-content p {
        font-size: var(--text-lg);
    }

    .features-grid,
    .enterprise-grid,
    .guarantee-grid,
    .values-grid {
        grid-template-columns: 1fr 1fr;
    }

    .arch-grid,
    .process-steps,
    .modes-grid {
        grid-template-columns: 1fr;
    }

    .scenarios-grid {
        grid-template-columns: 1fr 1fr;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }

    /* 新页面响应式适配 */
    .page-hero {
        padding: calc(var(--nav-height) + var(--space-12)) 0 var(--space-12);
    }

    .page-hero h1 {
        font-size: var(--text-4xl);
    }

    .page-hero .hero-desc {
        font-size: var(--text-base);
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4);
    }

    .stat-number {
        font-size: var(--text-3xl);
    }

    .service-modules-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    .meaning-item {
        grid-template-columns: 60px 1fr;
        gap: var(--space-4);
        padding: var(--space-4);
    }

    .meaning-number {
        font-size: var(--text-4xl);
    }

    .meaning-content h3 {
        font-size: var(--text-xl);
    }

    .meaning-content p {
        font-size: var(--text-base);
    }

    .gene-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4);
    }

    .value-prop-item {
        grid-template-columns: 56px 1fr;
        gap: var(--space-4);
        padding: var(--space-4);
    }

    .value-prop-num {
        width: 48px;
        height: 48px;
        font-size: var(--text-xl);
    }

    .value-prop-content h3 {
        font-size: var(--text-xl);
    }

    .value-prop-content > p {
        font-size: var(--text-base);
    }

    .promises-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4);
    }

    .about-company-wrapper {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .honors-showcase-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4);
    }

    .contact-cta-info {
        grid-template-columns: 1fr;
        gap: var(--space-4);
        padding: var(--space-4);
    }
}

@media (max-width: 480px) {
    :root {
        --text-6xl: 32px;
        --text-5xl: 28px;
        --container-padding: 16px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .gene-grid,
    .promises-grid,
    .honors-showcase-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* ==================== 减少动画偏好 ==================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .scroll-reveal,
    .scroll-reveal-left,
    .scroll-reveal-right {
        opacity: 1 !important;
        transform: none !important;
    }
}