/* ========================================
   高瓴智远官网样式表 - 珠穆朗玛计划
   深色科技风 + 蓝金配色
   ======================================== */

/* 基础重置 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 明亮科技蓝+金色 */
    --primary: #3b9eff;
    --primary-light: #60b5ff;
    --primary-dark: #2d8ae6;
    --accent: #f59e0b;
    --accent-light: #fbbf24;
    
    /* 深色背景 */
    --dark: #0f1f3a;
    --dark-700: #1a2d4f;
    --dark-800: #152642;
    
    /* 灰度 */
    --white: #ffffff;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    
    /* 渐变 */
    --gradient-blue: linear-gradient(135deg, #3b9eff 0%, #2d8ae6 100%);
    --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-blue-gold: linear-gradient(135deg, #3b9eff 0%, #2d8ae6 50%, #f59e0b 100%);
    
    /* 深色背景（轻度提亮版） */
    --dark: #15233d;
    --dark-800: #1a2d4f;
    --dark-700: #1f3357;
    --dark-600: #28446e;
    --dark-500: #2f527f;
    
    /* 中性色（二级文字更亮，减压抑感） */
    --gray-500: #64748b;
    --gray-400: #b0bed0;
    --gray-300: #d4dde8;
    --gray-200: #e2e8f0;
    --gray-100: #f1f5f9;
    --white: #ffffff;
    
    /* 字体 */
    --font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* 间距 */
    --section-padding: 100px 0;
    --container-padding: 0 24px;
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.15);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.25);
    --shadow-xl: 0 25px 60px rgba(0,0,0,0.35);
    --shadow-glow-blue: 0 0 30px rgba(59, 130, 246, 0.3);
    --shadow-glow-gold: 0 0 30px rgba(212, 168, 83, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-300);
    background: var(--dark);
    overflow-x: hidden;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* ========================================
   Header 导航栏
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: all 0.4s ease;
    padding: 20px 0;
}

.header.scrolled {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    padding: 14px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-text {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    font-size: 28px;
    color: var(--accent);
    text-shadow: 0 0 20px rgba(212, 168, 83, 0.5);
}

.logo-icon-img {
    height: 32px;
    width: auto;
    object-fit: contain;
    vertical-align: middle;
    margin-top: 4px;
}

.logo-name {
    font-size: 26px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 3px;
}

.logo-slogan {
    margin-left: 14px;
    padding-left: 14px;
    border-left: 2px solid rgba(245, 158, 11, 0.4);
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    opacity: 0.95;
}

/* 导航菜单 */
.nav-box {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    font-size: 17px;
    transition: all 0.3s ease;
    padding: 8px 0;
    position: relative;
}

.nav-item a i {
    font-size: 10px;
    transition: transform 0.3s ease;
}

.nav-item a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.nav-item a:hover,
.nav-item.active a {
    color: var(--white);
}

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

/* 下拉菜单 */
.nav-item.has-dropdown {
    position: relative;
}

.nav-item.has-dropdown:hover a i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 200px;
    background: rgba(15, 31, 58, 0.98);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 12px 0;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-xl);
}

.nav-item.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 10px 24px;
    color: var(--gray-300);
    font-size: 14px;
    transition: all 0.3s ease;
}

.dropdown-menu a:hover {
    color: var(--accent);
    background: rgba(212, 168, 83, 0.1);
    padding-left: 28px;
}

.dropdown-menu a::after {
    display: none;
}

/* Header右侧 */
.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-300);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.header-phone:hover {
    color: var(--accent);
}

.header-phone i {
    color: var(--accent);
}

.btn-consult {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    background: var(--gradient-gold);
    color: var(--dark);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.btn-consult:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-gold);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* 移动端菜单 */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 22, 40, 0.98);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-list {
    list-style: none;
    text-align: center;
}

.mobile-nav-list li {
    margin: 20px 0;
}

.mobile-nav-list a {
    color: var(--white);
    font-size: 24px;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s ease;
}

.mobile-nav-list a:hover {
    color: var(--accent);
}

/* ========================================
   按钮样式
   ======================================== */
.btn-primary-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 36px;
    background: var(--gradient-gold);
    color: var(--dark);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary-gold::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.btn-primary-gold:hover::before {
    left: 100%;
}

.btn-primary-gold:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-gold);
}

.btn-outline-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 36px;
    background: transparent;
    color: var(--white);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-sm);
    transition: all 0.4s ease;
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px);
}

.btn-outline-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    background: transparent;
    color: var(--accent);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid var(--accent);
    border-radius: var(--radius-sm);
    transition: all 0.4s ease;
}

.btn-outline-gold:hover {
    background: var(--accent);
    color: var(--dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-gold);
}

.btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 16px 32px;
    background: var(--gradient-gold);
    color: var(--dark);
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.4s ease;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-gold);
}

/* ========================================
   Banner 首屏 - 珠穆朗玛峰主视觉
   ======================================== */
.banner-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--dark);
}

/* 块尾轻微羽化：下沿渐变至品牌底色，与核心价值块无缝衔接 */
.banner-section::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 100px;
    background: linear-gradient(to bottom, transparent 0%, #0a1628 100%);
    pointer-events: none;
    z-index: 3;
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.banner-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(10, 22, 40, 0.5) 0%, rgba(10, 22, 40, 0.65) 50%, rgba(10, 22, 40, 0.8) 100%);
}

.particles-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 1000px;
    padding: 0 24px;
    padding-top: 80px;
}

.banner-top-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.plan-name {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    background: rgba(245, 158, 11, 0.25);
    border: 1px solid rgba(245, 158, 11, 0.6);
    color: var(--accent);
    font-size: 14px;
    font-weight: 700;
    border-radius: 50px;
    letter-spacing: 2px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.plan-slogan {
    color: #ffffff;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 3px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

.banner-title {
    margin-bottom: 28px;
}

.banner-title .title-main {
    display: block;
    font-size: 60px;
    font-weight: 800;
    line-height: 1.2;
    color: #ffffff;
    letter-spacing: 3px;
    text-shadow: 
        0 4px 25px rgba(0, 0, 0, 0.9),
        0 2px 10px rgba(0, 0, 0, 0.6),
        0 0 80px rgba(245, 158, 11, 0.5);
    animation: fadeInUp 1s ease 0.2s both;
}

.banner-top-tag {
    margin-bottom: 35px;
    animation: fadeInDown 1s ease;
}

.top-slogan {
    display: inline-block;
    padding: 12px 32px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.25) 0%, rgba(245, 158, 11, 0.15) 100%);
    border: 1.5px solid rgba(245, 158, 11, 0.6);
    border-radius: 50px;
    color: var(--accent);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 3px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(15px);
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.2);
}

.banner-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 500;
    margin-bottom: 40px;
    letter-spacing: 3px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8);
    animation: fadeInUp 1s ease 0.4s both;
}

.banner-company {
    margin-bottom: 0;
}

.banner-company .company-name {
    font-size: 18px;
    color: #ffffff;
    font-weight: 600;
    margin-bottom: 8px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

.banner-company .company-position {
    font-size: 16px;
    color: var(--accent);
    font-weight: 600;
    letter-spacing: 2px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
    animation: fadeInUp 1s ease 0.6s both;
}

.banner-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--gray-500);
    font-size: 12px;
    letter-spacing: 2px;
    z-index: 2;
}

.scroll-arrow {
    animation: bounce 2s ease-in-out infinite;
}

.scroll-arrow i {
    font-size: 16px;
    color: var(--accent);
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Section 通用样式
   ======================================== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header.light .section-title,
.section-header.light .section-desc {
    color: var(--white);
}

.section-tag {
    display: inline-block;
    font-size: 30px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    color: var(--white);
    line-height: 1.3;
    margin-bottom: 16px;
}

.section-title .gradient-text {
    background: linear-gradient(90deg, #f59e0b 0%, #fbbf24 25%, #60a5fa 50%, #3b82f6 75%, #f59e0b 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmerGold 4s linear infinite;
}

@keyframes shimmerGold {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

.section-desc {
    font-size: 17px;
    color: var(--gray-400);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   三大核心价值
   ======================================== */
.value-section {
    padding: 80px 0;
    position: relative;
    overflow: hidden;
    background-color: #0a1628;
    background-image:
        linear-gradient(180deg, rgba(10, 22, 40, 0.62) 0%, rgba(13, 28, 52, 0.55) 50%, rgba(16, 32, 58, 0.7) 100%),
        url('../images/bg-value.jpg');
    background-size: cover, cover;
    background-position: center top, center center;
    background-repeat: no-repeat, no-repeat;
    background-attachment: scroll, fixed;
}

/* 顶部与首屏底部无缝衔接：用同色遮罩羽化过渡 */
.value-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 180px;
    background: linear-gradient(180deg, rgba(10, 22, 40, 0.85) 0%, rgba(10, 22, 40, 0.35) 60%, rgba(10, 22, 40, 0) 100%);
    pointer-events: none;
    z-index: 1;
}

/* 书法字样式 - 横排展示 */
.calligraphy-horizontal {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 80px;
    margin-bottom: 60px;
    padding: 20px 0;
}

.calligraphy-group {
    display: flex;
    gap: 20px;
    align-items: center;
}

.calligraphy-group .char {
    font-family: "KaiTi", "楷体", "STKaiti", serif;
    font-size: 56px;
    font-weight: 500;
    color: rgba(245, 200, 110, 0.7);
    text-shadow:
        0 0 18px rgba(245, 158, 11, 0.45),
        0 0 36px rgba(245, 158, 11, 0.25),
        0 2px 6px rgba(0, 0, 0, 0.4);
    line-height: 1.3;
    opacity: 0;
    animation: charFadeInHorizontal 1.2s ease forwards;
    animation-delay: calc(var(--delay) * 0.2s + 0.3s);
}

@keyframes charFadeInHorizontal {
    0% {
        opacity: 0;
        transform: translateY(-20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式 */
@media (max-width: 768px) {
    .calligraphy-horizontal {
        gap: 40px;
        margin-bottom: 40px;
    }
    
    .calligraphy-group {
        gap: 12px;
    }
    
    .calligraphy-group .char {
        font-size: 36px;
    }
}

@media (max-width: 480px) {
    .calligraphy-horizontal {
        flex-direction: column;
        gap: 20px;
        margin-bottom: 30px;
    }
    
    .calligraphy-group .char {
        font-size: 28px;
    }
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.value-card {
    text-align: center;
    padding: 40px 30px;
    background: rgba(59, 158, 255, 0.08);
    border: 1px solid rgba(59, 158, 255, 0.2);
    border-radius: var(--radius-lg);
    transition: all 0.4s ease;
    box-shadow: 0 4px 20px rgba(59, 158, 255, 0.1);
}

.value-card:hover {
    background: rgba(59, 158, 255, 0.15);
    border-color: rgba(59, 158, 255, 0.4);
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 40px rgba(59, 158, 255, 0.25);
}

.value-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-blue-gold);
    border-radius: 50%;
    transition: all 0.4s ease;
}

.value-card:hover .value-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
}

.value-icon i {
    font-size: 28px;
    color: var(--white);
    transition: all 0.3s ease;
}

.value-card:hover .value-icon i {
    transform: scale(1.1);
}

.value-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.value-title .highlight-ai {
    color: #e53935;
    font-weight: 800;
}

.value-desc {
    font-size: 15px;
    color: var(--gray-400);
    letter-spacing: 1px;
}

/* ========================================
   六大服务模块（珠穆朗玛计划）
   ======================================== */
.services-section {
    padding: var(--section-padding);
    position: relative;
    overflow: hidden;
    background-color: #0f1f3a;
    background-image:
        linear-gradient(180deg, rgba(10, 22, 40, 0.62) 0%, rgba(13, 28, 52, 0.58) 50%, rgba(16, 32, 58, 0.68) 100%),
        url('../images/bg-value.jpg');
    background-size: cover, cover;
    background-position: center center, center center;
    background-repeat: no-repeat, no-repeat;
    background-attachment: scroll, fixed;
}

/* 服务模块：细微科技网格纹理 */
.services-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 60px 60px, 60px 60px;
    background-position: center center;
    mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.9) 0%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.9) 0%, transparent 75%);
    pointer-events: none;
    z-index: 0;
}

/* 服务模块：流动光带（缓慢呼吸） */
.services-section::after {
    content: '';
    position: absolute;
    top: -20%;
    left: -10%;
    width: 60%;
    height: 140%;
    background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.08) 0%, transparent 60%);
    filter: blur(40px);
    animation: serviceGlowFloat 16s ease-in-out infinite alternate;
    pointer-events: none;
    z-index: 0;
}

@keyframes serviceGlowFloat {
    0%   { transform: translate(0, 0); opacity: 0.6; }
    100% { transform: translate(40%, 10%); opacity: 1; }
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.service-card {
    position: relative;
    padding: 32px 28px;
    background: rgba(59, 158, 255, 0.06);
    border: 1px solid rgba(59, 158, 255, 0.15);
    border-radius: var(--radius-lg);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(59, 158, 255, 0.08);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-blue-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    background: rgba(59, 158, 255, 0.12);
    border-color: rgba(59, 158, 255, 0.5);
    transform: translateY(-10px);
    box-shadow: 
        0 20px 40px rgba(59, 158, 255, 0.25),
        0 0 30px rgba(59, 158, 255, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(212, 168, 83, 0.15);
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
    letter-spacing: 1px;
}

.card-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(59, 158, 255, 0.9) 0%, rgba(45, 138, 230, 0.8) 100%);
    border-radius: var(--radius-md);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 
        0 4px 15px rgba(59, 158, 255, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.card-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.service-card:hover .card-icon::before {
    left: 100%;
}

.service-card:hover .card-icon {
    transform: scale(1.15) rotate(5deg);
    box-shadow: 
        0 8px 30px rgba(59, 158, 255, 0.5),
        0 0 20px rgba(59, 158, 255, 0.3);
}

.card-icon i {
    font-size: 22px;
    color: var(--white);
}

.card-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 6px;
}

.card-subtitle {
    font-size: 12px;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
    font-weight: 500;
}

.card-desc {
    font-size: 14px;
    color: var(--gray-400);
    line-height: 1.6;
    margin-bottom: 20px;
}

.card-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

.card-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.service-card:hover .card-btn::after {
    width: calc(100% - 20px);
}

.card-btn:hover {
    color: var(--accent-light);
}

.card-btn i {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover .card-btn i {
    transform: translateX(6px);
    animation: arrowPulse 1s ease infinite;
}

@keyframes arrowPulse {
    0%, 100% { transform: translateX(6px); }
    50% { transform: translateX(10px); }
}

/* ========================================
   实战成果 + 客户案例（合并模块）
   ======================================== */
.stats-clients-section {
    position: relative;
    padding: var(--section-padding);
    overflow: hidden;
    background-color: #152642;
    background-image:
        linear-gradient(180deg, rgba(26, 45, 79, 0.56) 0%, rgba(21, 38, 66, 0.6) 100%),
        url('../images/bg-stats.jpg');
    background-size: cover, cover;
    background-position: center center, center center;
    background-repeat: no-repeat, no-repeat;
    background-attachment: scroll, fixed;
}

/* 背景Logo层 */
.stats-clients-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(212, 168, 83, 0.1) 0%, transparent 50%);
    overflow: hidden;
}

/* 隐藏背景Logo文字 */
.bg-logos-grid {
    display: none;
}

.stats-clients-section .container {
    position: relative;
    z-index: 1;
}

/* 分隔线 */
.stats-clients-divider {
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.2) 50%, 
        transparent 100%
    );
    margin: 60px 0 40px;
}

/* 客户小标题 */
.clients-subtitle {
    text-align: center;
    font-size: 15px;
    color: var(--accent);
    font-weight: 500;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

/* 按钮居中容器 */
.clients-action {
    text-align: center;
    margin-top: 30px;
}

/* 双行Logo跑马灯容器 */
.clients-marquee-wrapper {
    margin: 40px -24px 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* 大卡片Logo跑马灯 */
.clients-marquee-lg {
    overflow: hidden;
}

.clients-track-lg {
    display: flex;
    gap: 24px;
    animation: marqueeLg 50s linear infinite;
}

@keyframes marqueeLg {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.clients-marquee-lg:hover .clients-track-lg {
    animation-play-state: paused;
}

/* 第二行反向滚动 */
.clients-marquee-lg.reverse .clients-track-lg {
    animation: marqueeLgReverse 50s linear infinite;
}

@keyframes marqueeLgReverse {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

.client-card-lg {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 180px;
    height: 100px;
    background: rgba(30, 58, 95, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    transition: all 0.4s ease;
}

.client-card-lg:hover {
    background: rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateY(-5px);
}

.client-card-lg span {
    font-size: 26px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 2px;
    transition: color 0.3s ease;
}

.client-card-lg:hover span {
    color: rgba(255, 255, 255, 0.8);
}

.client-card-lg img {
    max-width: 70%;
    max-height: 60%;
    object-fit: contain;
    opacity: 0.8;
    transition: all 0.4s ease;
}

.client-card-lg:hover img {
    opacity: 1;
    transform: scale(1.05);
}

/* 特定logo放大显示 */
.client-card-lg img[src*="sany"] {
    max-width: 95%;
    max-height: 85%;
    transform: scale(1.6);
}

.client-card-lg img[src*="sony"],
.client-card-lg img[src*="upm"] {
    max-width: 90%;
    max-height: 80%;
    transform: scale(1.3);
}

.client-card-lg:hover img[src*="sany"] {
    transform: scale(1.65);
}

.client-card-lg:hover img[src*="sony"],
.client-card-lg:hover img[src*="upm"] {
    transform: scale(1.35);
}

/* 客户案例标题区 */
.clients-header {
    margin-bottom: 30px;
}

.clients-header .section-title {
    font-size: 32px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-card {
    text-align: center;
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    transition: all 0.4s ease;
}

.stat-card:hover {
    background: rgba(212, 168, 83, 0.08);
    border-color: rgba(212, 168, 83, 0.3);
    transform: translateY(-5px);
}

.stat-number {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-bottom: 16px;
}

.stat-number .counter {
    font-size: 56px;
    font-weight: 900;
    background: var(--gradient-blue-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-number .suffix {
    font-size: 22px;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 14px;
    color: var(--gray-400);
    line-height: 1.5;
}

/* ========================================
   关于创始人
   ======================================== */
.about-section {
    padding: var(--section-padding);
    position: relative;
    overflow: hidden;
    background-color: #0f1f3a;
    background-image:
        /* 块尾轻微羽化：下沿渐变至品牌底色 */
        linear-gradient(to bottom, transparent calc(100% - 120px), #0a1628 100%),
        linear-gradient(180deg, rgba(15, 31, 58, 0.54) 0%, rgba(26, 45, 79, 0.58) 100%),
        url('../images/bg-about.jpg');
    background-size: cover, cover, cover;
    background-position: center center, center center, center center;
    background-repeat: no-repeat, no-repeat, no-repeat;
    background-attachment: scroll, scroll, fixed;
}

/* 关于创始人：聚光灯效果，突出人物 */
.about-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 25%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(245, 200, 110, 0.08) 0%, rgba(245, 158, 11, 0.04) 30%, transparent 70%);
    filter: blur(20px);
    pointer-events: none;
    z-index: 0;
}

/* 关于创始人：右下装饰光晕 */
.about-section::after {
    content: '';
    position: absolute;
    bottom: -10%;
    right: -10%;
    width: 50%;
    height: 60%;
    background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.12) 0%, transparent 60%);
    filter: blur(60px);
    pointer-events: none;
    z-index: 0;
}

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

.about-content {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 60px;
    align-items: start;
}

.about-image {
    position: relative;
}

.image-frame {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.founder-portrait-img {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    object-position: center 20%;
    border-radius: var(--radius-xl);
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 4 / 5;
    background: linear-gradient(135deg, #1e3a5f 0%, #0a1628 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    position: relative;
    overflow: hidden;
}

.image-placeholder::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(245, 158, 11, 0.12) 0%, transparent 55%),
        radial-gradient(ellipse at 70% 80%, rgba(59, 130, 246, 0.10) 0%, transparent 55%);
    pointer-events: none;
}

.image-placeholder i {
    font-size: 120px;
    opacity: 0.45;
    position: relative;
    z-index: 1;
}

.image-glow {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-blue-gold);
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0.5;
}

.about-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 120px;
    height: 120px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--dark);
    box-shadow: 0 12px 32px rgba(245, 158, 11, 0.35);
    border: 4px solid var(--dark);
    z-index: 2;
}

.badge-number {
    font-size: 36px;
    font-weight: 900;
    line-height: 1;
}

.badge-text {
    font-size: 11px;
    margin-top: 4px;
    font-weight: 600;
}

.about-header {
    margin-bottom: 32px;
    text-align: center;
}

.about-name {
    font-size: 36px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
    letter-spacing: 0.5em;
    padding-left: 0.5em; /* 抵消 letter-spacing 造成的右偏，保持真正居中 */
    opacity: 0;
    animation: aboutNameReveal 1s cubic-bezier(0.22, 1, 0.36, 1) 0.2s forwards;
}

.about-role {
    font-size: 15px;
    color: var(--accent);
    font-weight: 500;
    opacity: 0;
    animation: aboutRoleReveal 0.9s cubic-bezier(0.22, 1, 0.36, 1) 0.7s forwards;
}

@keyframes aboutNameReveal {
    0% {
        opacity: 0;
        letter-spacing: 1em;
        filter: blur(6px);
    }
    100% {
        opacity: 1;
        letter-spacing: 0.5em;
        filter: blur(0);
    }
}

@keyframes aboutRoleReveal {
    0% { opacity: 0; transform: translateY(12px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* 核心数据卡片（4 列） */
.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 32px;
}

.about-stat {
    padding: 20px 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(245, 158, 11, 0.18);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.3s ease;
}

.about-stat:hover {
    background: rgba(245, 158, 11, 0.06);
    border-color: rgba(245, 158, 11, 0.4);
    transform: translateY(-3px);
}

.about-stat i {
    font-size: 18px;
    color: var(--accent);
    margin-bottom: 10px;
    display: block;
}

.about-stat .stat-value {
    font-size: 22px;
    font-weight: 800;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.about-stat .stat-value span {
    font-size: 16px;
}

.about-stat .stat-label {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 6px;
}

.about-desc {
    margin-bottom: 0;
}

.desc-item {
    display: flex;
    gap: 14px;
    margin-bottom: 14px;
}

.desc-item i {
    color: var(--accent);
    font-size: 16px;
    margin-top: 4px;
    flex-shrink: 0;
}

.desc-item p {
    color: var(--gray-300);
    font-size: 14px;
    line-height: 1.7;
}

.desc-item strong {
    color: var(--white);
    font-weight: 600;
}

.about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
}

.about-tags .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray-300);
    font-size: 13px;
    font-weight: 500;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.about-tags .tag i {
    color: var(--primary);
    font-size: 12px;
}

.about-tags .tag:hover {
    background: rgba(212, 168, 83, 0.15);
    border-color: rgba(212, 168, 83, 0.4);
    color: var(--accent);
}

.about-clients {
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.about-clients .clients-title {
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 8px;
}

.about-clients .clients-list {
    font-size: 14px;
    color: var(--gray-400);
    line-height: 1.8;
}

/* ========================================
   AI洞察板块
   ======================================== */
.insights-section {
    padding: var(--section-padding);
    position: relative;
    overflow: hidden;
    background-color: #0a1628;
}

/* 洞察模块：模糊背景图 + 深色蒙版（模糊层） */
.insights-section::before {
    content: '';
    position: absolute;
    inset: -40px;
    background-image:
        linear-gradient(180deg, rgba(10, 22, 40, 0.68) 0%, rgba(21, 38, 66, 0.64) 100%),
        url('../images/bg-insights.jpg');
    background-size: cover, cover;
    background-position: center center, center center;
    background-repeat: no-repeat, no-repeat;
    filter: blur(2px);
    transform: scale(1.06);
    pointer-events: none;
    z-index: 0;
}

/* 洞察模块：对角光带 */
.insights-section::after {
    content: '';
    position: absolute;
    top: 0;
    right: -20%;
    width: 80%;
    height: 100%;
    background: linear-gradient(135deg, transparent 40%, rgba(59, 130, 246, 0.06) 50%, transparent 60%);
    pointer-events: none;
    z-index: 0;
}

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

/* 三栏等宽布局 */
.insights-three-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}

/* 等宽视频卡片 */
.video-card-equal {
    display: block;
    text-decoration: none;
    transition: all 0.3s ease;
    background: linear-gradient(180deg, rgba(30, 58, 95, 0.2) 0%, rgba(10, 22, 40, 0.3) 100%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 0;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.video-card-equal:hover {
    transform: translateY(-5px);
    border-color: rgba(245, 158, 11, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.video-cover-equal {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    overflow: hidden;
    flex-shrink: 0;
}

.video-placeholder-img {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.6) 0%, rgba(15, 30, 50, 0.8) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-placeholder-img i {
    font-size: 48px;
    color: rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
}

.video-card-equal:hover .video-placeholder-img i {
    transform: scale(1.15);
    color: var(--accent);
}

.video-card-info .video-date {
    font-size: 14px;
    color: var(--accent);
    margin-bottom: 8px;
    font-weight: 500;
}

.video-card-info {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.video-card-info .video-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    line-height: 1.5;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 48px;
}

.video-card-info .video-desc {
    font-size: 13px;
    color: var(--gray-400);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 右侧新闻盒子 */
.insights-news-box {
    background: linear-gradient(180deg, rgba(30, 58, 95, 0.3) 0%, rgba(10, 22, 40, 0.5) 100%);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px;
    display: flex;
    flex-direction: column;
}

/* Tab切换按钮 */
.news-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.news-tab {
    flex: 1;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: var(--gray-300);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.news-tab:hover {
    background: rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.3);
    color: var(--white);
}

.news-tab.active {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.3) 0%, rgba(245, 158, 11, 0.2) 100%);
    border-color: rgba(245, 158, 11, 0.4);
    color: var(--white);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.2);
}

/* Tab内容 */
.news-tab-content {
    display: none;
}

.news-tab-content.active {
    display: block;
}

.news-list-simple {
    flex: 1;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.news-item-simple {
    display: block;
    text-decoration: none;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.news-item-simple:last-child {
    border-bottom: none;
}

.news-item-simple:hover {
    padding-left: 6px;
}

.news-item-simple:hover .news-text {
    color: var(--white);
}

.news-item-simple .news-date {
    display: block;
    font-size: 12px;
    color: var(--primary);
    margin-bottom: 4px;
}

.news-item-simple .news-text {
    font-size: 13px;
    color: var(--gray-300);
    line-height: 1.5;
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.insights-news-box .more-link {
    margin-top: 12px;
    font-size: 13px;
    text-align: center;
    display: block;
}

/* 响应式 - 三栏布局 */
@media (max-width: 992px) {
    .insights-three-cols {
        grid-template-columns: 1fr 1fr;
    }
    
    .insights-news-box {
        grid-column: span 2;
    }
}

@media (max-width: 576px) {
    .insights-three-cols {
        grid-template-columns: 1fr;
    }
    
    .insights-news-box {
        grid-column: span 1;
    }
}

/* 右侧新闻区域 */
.insights-news-right {
    background: linear-gradient(180deg, rgba(30, 58, 95, 0.3) 0%, rgba(10, 22, 40, 0.5) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px;
    display: flex;
    flex-direction: column;
}

/* 标签页 */
.news-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.news-tab {
    background: none;
    border: none;
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-400);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.news-tab:hover {
    color: var(--white);
}

.news-tab.active {
    color: var(--accent);
}

.news-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
}

/* 面板 */
.news-panel {
    display: none;
    flex-direction: column;
    flex: 1;
}

.news-panel.active {
    display: flex;
}

/* 紧凑列表项 */
.news-item-compact {
    display: block;
    text-decoration: none;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.news-item-compact:hover {
    padding-left: 6px;
}

.news-item-compact:hover .news-text {
    color: var(--white);
}

.news-item-compact .news-date {
    display: block;
    font-size: 12px;
    color: var(--primary);
    margin-bottom: 4px;
}

.news-item-compact .news-text {
    font-size: 14px;
    color: var(--gray-300);
    line-height: 1.5;
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-panel .more-link {
    margin-top: auto;
    padding-top: 12px;
}

/* 响应式 - 两栏布局 */
@media (max-width: 992px) {
    .insights-two-cols {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .video-cards-row {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 576px) {
    .video-cards-row {
        grid-template-columns: 1fr;
    }
}

/* 简洁列表样式 */
.simple-list {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.simple-item {
    display: flex;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    text-decoration: none;
    transition: all 0.3s ease;
    align-items: flex-start;
}

.simple-item:last-child {
    border-bottom: none;
}

.simple-item:hover {
    background: rgba(255, 255, 255, 0.02);
    margin: 0 -12px;
    padding: 14px 12px;
    border-radius: var(--radius-sm);
}

.simple-item:hover .item-title {
    color: var(--white);
}

.simple-item .item-date {
    font-size: 13px;
    color: var(--primary);
    white-space: nowrap;
    flex-shrink: 0;
    font-weight: 500;
}

.insights-col:nth-child(2) .simple-item .item-date {
    color: var(--accent);
}

.insights-col:nth-child(3) .simple-item .item-date {
    color: #10b981;
}

.simple-item .item-title {
    font-size: 14px;
    color: var(--gray-300);
    line-height: 1.5;
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.more-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: auto;
    padding-top: 16px;
    font-size: 14px;
    color: var(--gray-400);
    text-decoration: none;
    transition: all 0.3s ease;
}

.more-link:hover {
    color: var(--accent);
}

.more-link i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.more-link:hover i {
    transform: translateX(5px);
}

/* 响应式 - 三栏布局 */
@media (max-width: 1024px) {
    .insights-three-cols {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 576px) {
    .insights-col {
        padding: 20px;
    }
}

.content-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.content-title i {
    color: var(--accent);
    font-size: 20px;
}

/* 视频卡片样式 */
.video-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 24px;
}

.video-card {
    display: flex;
    gap: 16px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.3s ease;
    cursor: pointer;
}

.video-card:hover {
    background: rgba(59, 158, 255, 0.08);
    border-color: rgba(59, 158, 255, 0.3);
    transform: translateX(5px);
}

.video-thumbnail {
    position: relative;
    flex-shrink: 0;
    width: 140px;
    height: 80px;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-thumbnail.video-placeholder {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.3) 0%, rgba(59, 130, 246, 0.1) 100%);
}

.play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.video-card:hover .play-overlay {
    opacity: 1;
}

.play-overlay i {
    font-size: 36px;
    color: var(--white);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.video-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.video-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--white);
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-date {
    font-size: 12px;
    color: var(--gray-500);
}

.video-date i {
    margin-right: 6px;
    color: var(--primary);
}

/* 文章卡片样式 */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.article-card {
    padding: 16px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.3s ease;
}

.article-card:hover {
    background: rgba(245, 158, 11, 0.05);
    border-color: rgba(245, 158, 11, 0.2);
}

.article-tag {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent);
    font-size: 11px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 10px;
}

.article-title {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 8px;
}

.article-title a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-title a:hover {
    color: var(--accent);
}

.article-excerpt {
    font-size: 13px;
    color: var(--gray-400);
    line-height: 1.6;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.article-date {
    font-size: 12px;
    color: var(--gray-500);
}

.article-date i {
    margin-right: 6px;
    color: var(--accent);
}

.read-more {
    font-size: 12px;
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.read-more:hover {
    color: var(--primary);
}

/* 查看更多按钮 */
.view-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    color: var(--gray-300);
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.view-more-btn:hover {
    background: rgba(245, 158, 11, 0.15);
    border-color: rgba(245, 158, 11, 0.4);
    color: var(--accent);
}

.view-more-btn i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.view-more-btn:hover i {
    transform: translateX(4px);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .insights-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 576px) {
    .video-card {
        flex-direction: column;
    }
    
    .video-thumbnail {
        width: 100%;
        height: 160px;
    }
    
    .insights-left,
    .insights-right {
        padding: 20px;
    }
}

/* ========================================
   客户Logo跑马灯（已合并到实战成果模块）
   ======================================== */
.clients-marquee {
    overflow: hidden;
    margin: 60px -24px 40px;
}

.clients-track {
    display: flex;
    gap: 20px;
    animation: marquee 40s linear infinite;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.clients-marquee:hover .clients-track {
    animation-play-state: paused;
}

.client-logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 140px;
    height: 70px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: all 0.4s ease;
}

.client-logo:hover {
    background: rgba(212, 168, 83, 0.15);
    border-color: rgba(212, 168, 83, 0.4);
}

.client-logo span {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-300);
    transition: color 0.3s ease;
}

.client-logo:hover span {
    color: var(--accent);
}

.clients-note {
    text-align: center;
    font-size: 15px;
    color: var(--accent);
    font-weight: 500;
    letter-spacing: 2px;
}

.clients-note-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    background: transparent;
    border: 1px solid var(--accent);
    border-radius: var(--radius-md);
    color: var(--accent);
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    margin-top: 20px;
}

.clients-note-link:hover {
    background: var(--gradient-gold);
    color: var(--dark);
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.3);
}

.clients-note-link i {
    font-size: 14px;
    transition: transform 0.3s ease;
}

.clients-note-link:hover i {
    transform: translateX(5px);
}

/* ========================================
   联系我们
   ======================================== */
/* 联系我们 + 底栏 共用背景容器 */
.contact-footer-wrapper {
    background:
        linear-gradient(to bottom,
            rgba(10, 22, 40, 0.6) 0%,
            rgba(10, 22, 40, 0.55) 50%,
            rgba(10, 22, 40, 0.72) 100%
        ),
        url('../images/bg-footer-mountain-path.jpg') center/cover no-repeat;
    background-attachment: fixed;
    position: relative;
}

.contact-footer-wrapper::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(ellipse at 20% 30%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(245, 158, 11, 0.06) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* 块首轻微羽化：上缘渐变至品牌底色，与创始人介绍块无缝衔接 */
.contact-footer-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to top, transparent 0%, #0a1628 100%);
    pointer-events: none;
    z-index: 0;
}

.contact-footer-wrapper > * {
    position: relative;
    z-index: 1;
}

.contact-section {
    padding: var(--section-padding);
    background: transparent;
    position: relative;
    overflow: hidden;
}

.contact-section::before {
    content: none;
}

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

/* 联系我们 · 三卡片版式 */
.contact-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 60px;
}

.contact-header .section-tag {
    color: var(--accent);
}

.contact-header .section-title.light {
    color: var(--white);
    font-size: 36px;
}

.contact-desc {
    color: var(--gray-400);
    margin: 20px 0 0;
    font-size: 16px;
    line-height: 1.8;
}

.contact-cards-3col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 24px 20px 20px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    overflow: hidden;
    /* 重置 button 原生样式 */
    font-family: inherit;
    cursor: pointer;
    width: 100%;
}

button.contact-card {
    appearance: none;
    -webkit-appearance: none;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.contact-card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(245, 158, 11, 0.4);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.contact-card:hover::before {
    transform: scaleX(1);
}

.contact-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.18) 0%, rgba(59, 130, 246, 0.12) 100%);
    border: 1px solid rgba(245, 158, 11, 0.3);
    margin-bottom: 12px;
    transition: all 0.35s ease;
}

.contact-card:hover .contact-card-icon {
    transform: scale(1.08);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.3) 0%, rgba(59, 130, 246, 0.2) 100%);
}

.contact-card-icon i {
    font-size: 19px;
    color: var(--accent);
}

.contact-card-icon.wechat i {
    color: #10b981;
}

.contact-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-300);
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.contact-card-main {
    font-size: 20px;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    line-height: 1.2;
    word-break: break-all;
}

.contact-card-main-sm {
    font-size: 14px;
}

.contact-card-sub {
    font-size: 12px;
    color: var(--gray-500);
    margin-bottom: 10px;
    line-height: 1.5;
}

.contact-card-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--accent);
    margin-top: auto;
    transition: gap 0.3s ease;
}

.contact-card:hover .contact-card-cta {
    gap: 12px;
}

.contact-card-cta i {
    font-size: 11px;
}

/* 微信卡片的二维码区 */
.contact-card-qr {
    position: relative;
    width: 110px;
    height: 110px;
    padding: 8px;
    background: #ffffff;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: zoom-in;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-card-qr:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.25);
}

.contact-card-qr::after {
    content: '\f00e';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    bottom: 6px;
    right: 6px;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 22, 40, 0.7);
    color: var(--accent);
    border-radius: 50%;
    font-size: 10px;
    pointer-events: none;
}

.contact-card-qr img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.qr-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: repeating-linear-gradient(45deg, #e5e7eb 0 8px, #f3f4f6 8px 16px);
    border-radius: 6px;
    color: #6b7280;
    font-size: 12px;
}

.qr-placeholder i {
    font-size: 28px;
    color: #10b981;
}

/* 微信二维码弹窗（与洞察页 .qrcode-modal 同款） */
.qrcode-modal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.qrcode-modal.active {
    display: flex;
    animation: qrcodeFadeIn 0.3s ease;
}

@keyframes qrcodeFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.qrcode-content {
    position: relative;
    background: var(--dark-700, #152642);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 90vw;
    text-align: center;
    animation: qrcodePopIn 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes qrcodePopIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.qrcode-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--gray-300);
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.qrcode-close:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    transform: rotate(90deg);
}

.qrcode-image {
    width: 240px;
    height: 240px;
    max-width: 70vw;
    max-height: 70vw;
    background: var(--white);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.qrcode-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 8px;
}

.qrcode-image i {
    font-size: 100px;
    color: var(--dark);
}

.qrcode-caption {
    margin-top: 20px;
    color: var(--white);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.qrcode-follow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.qrcode-follow .follow-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.qrcode-follow .follow-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.qrcode-follow .follow-avatar i {
    font-size: 22px;
    color: var(--dark);
}

.qrcode-follow .follow-check {
    position: absolute;
    bottom: -2px;
    right: -2px;
    width: 18px;
    height: 18px;
    background: #10b981;
    border-radius: 50%;
    border: 2px solid var(--dark-700, #152642);
    display: flex;
    align-items: center;
    justify-content: center;
}

.qrcode-follow .follow-check i {
    font-size: 9px;
    color: var(--white);
}

.qrcode-follow .follow-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.qrcode-follow .follow-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 2px;
}

.qrcode-follow .follow-slogan {
    font-size: 12px;
    color: var(--gray-400);
    line-height: 1.4;
}

/* ---- 以下为旧联系模块残留样式，保留是为避免影响其他可能引用页 ---- */
.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 20px;
    color: var(--accent);
}

.contact-text h4 {
    font-size: 12px;
    color: var(--gray-500);
    font-weight: 400;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-text p {
    font-size: 16px;
    color: var(--white);
    font-weight: 500;
}

.contact-qrcode {
    display: flex;
    gap: 20px;
}

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

.qrcode-placeholder {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
}

.qrcode-placeholder i {
    font-size: 36px;
    color: var(--gray-500);
}

.qrcode-item span {
    font-size: 12px;
    color: var(--gray-500);
}

.contact-form-wrapper {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: var(--radius-xl);
}

.form-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 28px;
    text-align: center;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    font-size: 14px;
    font-family: var(--font-family);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
    outline: none;
    background: rgba(255, 255, 255, 0.05);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-500);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.08);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    color: var(--gray-400);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 18px;
}

.form-group select option {
    background: var(--dark-700);
    color: var(--white);
}

/* ========================================
   页脚
   ======================================== */
.footer {
    background: linear-gradient(180deg, #0a1628 0%, #050d1a 100%);
    padding: 80px 0 0;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(245, 158, 11, 0.5) 50%, transparent 100%);
}

/* 首页底栏带背景图 */
.footer-with-bg {
    background: 
        linear-gradient(to bottom, 
            rgba(10, 22, 40, 0.7) 0%, 
            rgba(10, 22, 40, 0.82) 50%,
            rgba(10, 22, 40, 0.92) 100%
        ),
        url('../images/bg-footer-mountain-path.jpg') center 50%/cover no-repeat;
}

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

/* Footer 嵌入共用背景容器时使用 */
.footer-in-wrapper {
    background: rgba(10, 22, 40, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    position: relative;
}

.footer-in-wrapper .footer-bottom {
    background: transparent;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 50px;
    padding-bottom: 30px;
    margin-bottom: 0;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    margin-bottom: 20px;
}

.footer-logo .logo-icon {
    font-size: 22px;
    color: var(--accent);
}

.footer-logo .logo-icon-img {
    height: 26px;
    width: auto;
    object-fit: contain;
    vertical-align: middle;
    margin-top: 3px;
}

.footer-logo .logo-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 2px;
}

.footer-company {
    color: var(--gray-400);
    font-size: 14px;
    margin-bottom: 8px;
    line-height: 1.6;
}

.footer-slogan {
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.footer-mission {
    color: var(--gray-500);
    font-size: 13px;
    line-height: 1.6;
}

.footer-social {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.footer-social .social-link {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--gray-400);
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social .social-link:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--dark);
}

.footer-links h4,
.footer-services h4,
.footer-contact h4 {
    color: var(--white);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 12px;
}

.footer-links h4::after,
.footer-services h4::after,
.footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
}

.footer-links ul,
.footer-services ul,
.footer-contact ul {
    list-style: none;
}

.footer-links li,
.footer-services li,
.footer-contact li {
    margin-bottom: 12px;
}

.footer-links a,
.footer-services a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-links a:hover,
.footer-services a:hover {
    color: var(--accent);
    transform: translateX(3px);
}

.footer-services li {
    color: var(--gray-400);
    font-size: 14px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--gray-400);
    font-size: 14px;
    line-height: 1.8;
}

.footer-contact li i {
    color: var(--accent);
    width: 16px;
    font-size: 14px;
}

.footer-contact a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-contact a:hover {
    color: var(--accent);
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-bottom p {
    color: var(--gray-500);
    font-size: 13px;
    margin-bottom: 6px;
    line-height: 1.6;
}

.footer-bottom a {
    color: var(--gray-500);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* ========================================
   侧边栏固定按钮
   ======================================== */
.sidebar-fixed {
    position: fixed;
    right: 20px;
    bottom: 100px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 999;
}

.sidebar-item {
    width: 50px;
    height: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(15, 31, 58, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--gray-400);
    text-decoration: none;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateX(20px);
}

.sidebar-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.sidebar-item i {
    font-size: 18px;
    margin-bottom: 2px;
}

.sidebar-item span {
    font-size: 10px;
}

.sidebar-item:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--dark);
}

.sidebar-item.back-to-top {
    background: var(--gradient-gold);
    border-color: transparent;
    color: var(--dark);
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 1024px) {
    :root {
        --section-padding: 80px 0;
    }
    
    .nav-box {
        display: none;
    }
    
    .header-phone {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .logo-slogan {
        display: none;
    }
    
    .banner-title .title-main {
        font-size: 56px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .section-tag {
        font-size: 24px;
        letter-spacing: 1px;
        margin-bottom: 20px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image {
        max-width: 300px;
        margin: 0 auto;
    }
    
    .contact-cards-3col {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .contact-card {
        padding: 36px 24px 32px;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 12px 0;
    }
    
    .header-container {
        padding: 0 16px;
    }
    
    .btn-consult {
        display: none;
    }
    
    .banner-title .title-main {
        font-size: 36px;
        letter-spacing: 2px;
    }
    
    .banner-subtitle {
        font-size: 15px;
        letter-spacing: 2px;
        margin-bottom: 30px;
    }
    
    .top-slogan {
        font-size: 13px;
        padding: 10px 24px;
        letter-spacing: 2px;
    }
    
    .banner-top-info {
        flex-direction: column;
        gap: 10px;
    }
    
    .banner-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .banner-buttons a {
        width: 100%;
        max-width: 260px;
    }
    
    .scroll-indicator {
        display: none;
    }
    
    .value-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
    
    .stat-number .counter {
        font-size: 42px;
    }
    
    .about-name {
        font-size: 26px;
    }
    
    .about-badge {
        width: 90px;
        height: 90px;
        bottom: -15px;
        right: -10px;
    }
    
    .badge-number {
        font-size: 28px;
    }
    
    .courses-tabs {
        gap: 8px;
    }
    
    .tab-btn {
        padding: 8px 16px;
        font-size: 12px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 28px 20px;
    }
    
    .contact-qrcode {
        justify-content: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .footer-logo {
        justify-content: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-contact li {
        justify-content: center;
    }
    
    .sidebar-fixed {
        right: 10px;
        bottom: 80px;
    }
    
    .sidebar-item {
        width: 44px;
        height: 44px;
    }
}

@media (max-width: 480px) {
    .banner-title .title-main {
        font-size: 32px;
    }
    
    .plan-name {
        padding: 8px 16px;
        font-size: 12px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number .counter {
        font-size: 48px;
    }
    
    .client-logo {
        width: 120px;
        height: 60px;
    }
    
    .client-logo span {
        font-size: 14px;
    }
}

/* ========================================
   服务详情模态弹窗
   ======================================== */
.service-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.service-modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 680px;
    max-height: 90vh;
    background: linear-gradient(180deg, #1a2d4f 0%, #0f1f3a 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: var(--gray-400);
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 10;
}

.modal-close:hover {
    background: rgba(245, 158, 11, 0.25);
    color: var(--accent);
    transform: rotate(90deg);
}

.modal-header {
    padding: 30px 30px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.modal-tag {
    display: inline-block;
    padding: 4px 14px;
    background: var(--gradient-gold);
    color: var(--dark);
    font-size: 12px;
    font-weight: 700;
    border-radius: 20px;
    margin-bottom: 12px;
}

.modal-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 8px;
}

.modal-subtitle {
    font-size: 15px;
    color: var(--gray-400);
}

.modal-body {
    padding: 24px 30px;
    max-height: 50vh;
    overflow-y: auto;
}

/* 自定义滚动条 */
.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
    transition: background 0.3s ease;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background: rgba(245, 158, 11, 0.4);
}

.modal-section {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.modal-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.modal-section h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-section h3 i {
    font-size: 14px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(245, 158, 11, 0.15);
    border-radius: 6px;
    color: var(--accent);
}

.modal-section p {
    font-size: 14px;
    color: var(--gray-300);
    line-height: 1.7;
}

.modal-courses {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.course-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-left: 3px solid transparent;
    border-radius: var(--radius-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.course-item:hover {
    background: rgba(59, 158, 255, 0.08);
    border-left-color: var(--primary);
    transform: translateX(4px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.course-name {
    font-size: 14px;
    color: var(--white);
    font-weight: 500;
    transition: color 0.3s ease;
}

.course-item:hover .course-name {
    color: var(--primary-light);
}

.course-duration {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--primary-light);
    background: rgba(59, 158, 255, 0.15);
    padding: 5px 12px;
    border-radius: 20px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.course-duration::before {
    content: '\f017';
    font-family: 'Font Awesome 6 Free';
    font-weight: 400;
    font-size: 11px;
}

.course-item:hover .course-duration {
    background: rgba(59, 158, 255, 0.25);
}

.modal-cases {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.case-tag {
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    font-size: 13px;
    color: var(--gray-300);
    transition: all 0.3s ease;
}

.case-tag:hover {
    background: rgba(59, 158, 255, 0.15);
    border-color: rgba(59, 158, 255, 0.3);
    color: var(--primary-light);
}

/* 适合对象标签样式 */
.modal-audience {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.audience-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(59, 158, 255, 0.1) 0%, rgba(59, 158, 255, 0.05) 100%);
    border: 1px solid rgba(59, 158, 255, 0.2);
    border-radius: 8px;
    font-size: 13px;
    color: var(--gray-200);
    font-weight: 500;
    transition: all 0.3s ease;
}

.audience-tag::before {
    content: '\f007';
    font-family: 'Font Awesome 6 Free';
    font-weight: 400;
    font-size: 12px;
    color: var(--primary-light);
}

.audience-tag:hover {
    background: linear-gradient(135deg, rgba(59, 158, 255, 0.2) 0%, rgba(59, 158, 255, 0.1) 100%);
    border-color: rgba(59, 158, 255, 0.4);
    transform: translateY(-2px);
}

.modal-footer {
    padding: 20px 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    gap: 16px;
}

.btn-detail {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    color: var(--white);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-detail::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

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

.btn-detail:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.btn-consult-modal {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    background: var(--gradient-gold);
    border: none;
    border-radius: var(--radius-md);
    color: var(--dark);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-consult-modal:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 168, 83, 0.4);
}

/* 服务卡片可点击样式 */
.service-card {
    cursor: pointer;
}

.service-card:hover {
    transform: translateY(-8px);
}

/* 模态弹窗响应式 */
@media (max-width: 576px) {
    .modal-content {
        max-height: 85vh;
    }
    
    .modal-header {
        padding: 24px 20px 16px;
    }
    
    .modal-title {
        font-size: 22px;
    }
    
    .modal-body {
        padding: 20px;
    }
    
    .modal-footer {
        padding: 16px 20px;
        flex-direction: column;
    }
    
    .course-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}