/* LOADSTAR 官网样式表 V4.0 - 响应式优化版 */

:root {
    /* 主色系 - 与 V8.0 优化器保持一致 */
    --primary: #002c75;
    --primary-dark: #001f55;
    --primary-light: #e8eff8;
    --primary-gradient: linear-gradient(135deg, #002c75 0%, #001f55 100%);
    
    /* 辅助色 */
    --success: #5CB877;
    --warning: #FFB347;
    --danger: #FF6B6B;
    
    /* 中性色 */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --border: #E8E8E8;
    --border-light: #F0F0F0;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F9F9FB;
    --bg-tertiary: #F5F5F7;
    
    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.08);
    --shadow-xl: 0 12px 40px rgba(0,0,0,0.1);
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-xxl: 32px;
    
    /* 动画 */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
    background: #fff;
    color: #002c75;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: 0.02em;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (min-width: 768px) {
    .container {
        padding: 0 40px;
    }
}

/* Login & Register: form card uses full container width (same as site max-width) */
section.auth-page:not(.quote-page) > .container {
    width: 100%;
    max-width: 1400px;
}

section.auth-page:not(.quote-page) .auth-box {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

a {
    text-decoration: none;
    color: #002c75;
    transition: color var(--transition-base);
}

a:hover {
    color: #002c75;
}

/* 导航栏 - DSV 风格优化 */
.navbar {
    background: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid #dbdcdd;
    transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
}

@media (min-width: 768px) {
    .navbar .container {
        padding: 25px 40px;
    }
}

.nav-brand a {
    display: flex;
    align-items: center;
}

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

@media (min-width: 768px) {
    .logo-img {
        height: 50px;
    }
}

/* 移动端汉堡菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1002;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
}

.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);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 24px;
    font-size: 14px;
    letter-spacing: 0.5px;
    align-items: center;
}

.nav-actions {
    display: flex;
    align-items: center;
    margin-left: 8px;
}

@media (max-width: 992px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 20px 24px;
        gap: 0;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
}

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

.nav-menu > li > a {
    font-weight: 700;
    font-size: 14px;
    color: #002c75;
    padding: 4px 0;
    display: block;
    transition: all 0.1s ease-in;
    letter-spacing: 0.5px;
    position: relative;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
}

.nav-menu > li > a:hover,
.nav-menu > li.active > a {
    color: #002c75;
}

.nav-menu > li > a:hover::after,
.nav-menu > li.active > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: #002c75;
}

@media (max-width: 992px) {
    .nav-menu > li > a {
        padding: 14px 0;
        border-bottom: 1px solid var(--border-light);
    }
}

/* 下拉菜单 */
.nav-dropdown:hover .dropdown-content {
    display: block;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-content {
    display: block;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-primary);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    min-width: 220px;
    padding: 12px 0;
    z-index: 1001;
    transition: all var(--transition-base);
    list-style: none;
}

.dropdown-content li {
    list-style: none;
    margin: 0;
    padding: 0;
}

.dropdown-content li::before,
.dropdown-content li::after {
    content: none;
    display: none;
}

@media (max-width: 992px) {
    .dropdown-content {
        position: static;
        box-shadow: none;
        padding-left: 20px;
        display: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        min-width: auto;
    }
    
    .nav-dropdown.open .dropdown-content {
        display: block;
    }
}

.dropdown-content li a {
    display: block;
    padding: 12px 24px;
    font-size: 14px;
    color: var(--text-primary);
    transition: all var(--transition-base);
    position: relative;
}

.dropdown-content li a:hover {
    background: #002c75;
    color: #fff;
}

.dropdown-content li a::before,
.dropdown-content li a::after {
    content: none;
    display: none;
}

@media (max-width: 992px) {
    .dropdown-content li a {
        padding: 12px 0;
    }
}

.nav-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* 导航栏内主按钮：必须覆盖 .nav-menu > li > a 的深蓝字色，否则蓝底深蓝字几乎看不见 */
.nav-menu .nav-actions a.btn.btn-primary {
    color: #fff !important;
    background: linear-gradient(135deg, #002c75 0%, #001f55 100%);
    border-radius: 8px;
    padding: 10px 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-decoration: none;
    box-shadow: 0 4px 16px rgba(0, 44, 117, 0.2);
    border: none;
    font-weight: 700;
    font-size: 14px;
    line-height: 1.25;
    white-space: nowrap;
    letter-spacing: 0.02em;
}

.nav-menu .nav-actions a.btn.btn-primary:hover {
    color: #fff !important;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0, 44, 117, 0.28);
}

.nav-menu .nav-actions a.btn.btn-primary::after,
.nav-menu .nav-actions a.btn.btn-primary:hover::after {
    display: none !important;
    content: none !important;
    width: 0 !important;
    height: 0 !important;
}

/* 导航内 LOGIN 图标按钮：去掉全局 nav 下划线，避免与 login-btn 样式冲突 */
.nav-menu .nav-actions a.login-btn::after,
.nav-menu .nav-actions a.login-btn:hover::after {
    display: none !important;
    content: none !important;
}

@media (max-width: 768px) {
    .nav-actions {
        display: none;
        position: absolute;
        bottom: 20px;
        left: 24px;
        right: 24px;
        flex-direction: column;
    }
    
    .nav-menu.active .nav-actions {
        display: flex;
    }

    .nav-menu .nav-actions a.btn.btn-primary {
        width: 100%;
        padding: 12px 18px;
    }
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}


.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin: 40px 0;
}

.hero-stat-item {
    text-align: center;
}

.hero-stat-number {
    display: block;
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    color: #fff;
    margin-bottom: 8px;
}

.hero-stat-label {
    display: block;
    font-size: 14px;
    color: rgba(255,255,255,0.8);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-stat-divider {
    display: none;
}

@media (min-width: 768px) {
    .hero-stat-divider {
        display: block;
        width: 2px;
        height: 40px;
        background: rgba(255,255,255,0.3);
        align-self: center;
    }
}


/* Hero Section - 响应式全屏设计 */
.hero {
    position: relative;
    height: 100vh;
    min-height: 620px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    overflow: hidden;
}

@media (max-width: 768px) {
    .hero {
        height: auto;
        min-height: 100vh;
        padding: 100px 0 60px;
    }
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,106.7C1248,96,1344,96,1392,96L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.3;
}

/* Hero 视频背景 - DSV 风格 */
.hero-video-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.hero-bg-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
}

/* 遮罩层 - 透明 */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    z-index: 2;
    pointer-events: none;
}

/* Hero Banner - DSV Style */
.hero-banner {
    position: relative;
    height: 600px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content {
    position: relative;
    z-index: 10;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content .container {
    max-width: 1200px;
}

.hero-title {
    font-size: clamp(40px, 5vw, 64px);
    font-weight: 700;
    color: #fff;
    margin-bottom: 24px;
    line-height: 1.15;
    max-width: 900px;
    letter-spacing: 0.3px;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.hero-description {
    font-size: clamp(18px, 2vw, 22px);
    color: rgba(255,255,255,1);
    font-weight: 700;
    margin-bottom: 26px;
    margin-top: 20px;
    letter-spacing: 0.3px;
    max-width: 800px;
    text-shadow: none;
}

.hero-focus-sub {
    font-size: clamp(14px, 1.8vw, 18px);
    color: rgba(255,255,255,0.85);
    font-weight: 500;
    margin-bottom: 32px;
    padding-top: 16px;
    position: relative;
    letter-spacing: 0.5px;
}

.hero-focus-sub::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 500px);
    height: 1px;
    background: rgba(255,255,255,0.3);
}

.hero-cta {
    display: inline-flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 8px;
}

.hero-cta .btn-lg {
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    min-width: 160px;
    transition: all 0.3s ease;
}

/* Hero CTA 按钮 - DSV 风格深蓝按钮 */
.hero-cta .btn-primary,
.hero-cta .btn-outline {
    background: #003366 !important;
    color: #fff !important;
    border: none !important;
    border-radius: 6px !important;
    padding: 14px 32px !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    min-width: 180px !important;
    transition: background 0.25s ease !important;
}

.hero-cta .btn-primary:hover,
.hero-cta .btn-outline:hover {
    background: #002244 !important;
}




.hero-stat-item {
    text-align: center;
}

.hero-stat-number {
    display: block;
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    color: #fff;
    margin-bottom: 8px;
}

.hero-stat-label {
    display: block;
    font-size: 14px;
    color: rgba(255,255,255,0.8);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-stat-divider {
    display: none;
}

@media (min-width: 768px) {
    .hero-stat-divider {
        display: block;
        width: 2px;
        height: 40px;
        background: rgba(255,255,255,0.3);
        align-self: center;
    }
}


/* Hero Section - DSV 风格 */
.hero {
    position: relative;
    height: 820px;
    overflow: hidden;
}

/* Track Shipment Bar - DSV Style */
.track-shipment-bar {
    background: #002c75;
    padding: 40px 0;
    position: relative;
    z-index: 20;
    margin-top: -80px;
}

.track-shipment-container {
    display: flex;
    align-items: center;
    gap: 24px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.track-shipment-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    color: #fff;
}

.track-shipment-icon svg {
    width: 100%;
    height: 100%;
}

.track-shipment-form {
    flex: 1;
}

.track-label {
    display: none;
}

.track-input::placeholder {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    font-weight: 500;
}

.track-input-wrapper {
    display: flex;
    gap: 0;
    background: #fff;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid #fff;
}

.track-input {
    flex: 1;
    border: none;
    padding: 16px 20px;
    font-size: 16px;
    font-family: 'Inter', Arial, sans-serif;
    outline: none;
    background: #fff;
    color: #002c75;
    border-top-left-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-md);
}

.track-input::placeholder {
    color: #999;
}

.track-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: #002c75;
    border: none;
    padding: 0 24px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Inter', Arial, sans-serif;
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
}

.track-btn:hover {
    background: #002c75;
    color: #fff;
}

.track-btn svg {
    width: 20px;
    height: 20px;
}

.track-btn:hover {
    background: #002664;
}

.track-btn svg {
    width: 20px;
    height: 20px;
}

@media (max-width: 768px) {
    .track-shipment-bar {
        margin-top: 0;
        padding: 24px 0;
    }
    
    .track-shipment-container {
        flex-direction: column;
        gap: 16px;
    }
    
    .track-input-wrapper {
        flex-direction: column;
    }
    
    .track-btn {
        justify-content: center;
        padding: 14px 24px;
    }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    padding: 0 20px;
}



.hero-title .hero-subtitle {
    display: block;
    font-size: clamp(18px, 3vw, 28px);
    font-weight: 500;
    margin-top: 12px;
    opacity: 0.95;
}

.hero-description {
    font-size: clamp(16px, 2vw, 20px);
    color: rgba(255,255,255,0.95);
    margin-bottom: 48px;
    line-height: 1.6;
}

/* 快速操作栏 - 响应式网格 */
.hero-quick-actions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

@media (max-width: 1024px) {
    .hero-quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .hero-quick-actions {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.quick-action-card {
    background: rgba(255,255,255,0.95);
    padding: 28px 20px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-slow);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    align-items: center;
}

@media (min-width: 768px) {
    .quick-action-card {
        padding: 32px 24px;
    }
}

.quick-action-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    background: var(--bg-primary);
}

.quick-action-icon {
    font-size: 40px;
    display: block;
    margin-bottom: 12px;
}

@media (min-width: 768px) {
    .quick-action-icon {
        font-size: 48px;
    }
}

.quick-action-title {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

@media (min-width: 768px) {
    .quick-action-title {
        font-size: 18px;
    }
}

.quick-action-desc {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
}

@media (min-width: 768px) {
    .quick-action-desc {
        font-size: 14px;
    }
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: #fff;
    font-size: 13px;
    opacity: 0.85;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
}

@media (min-width: 768px) {
    .hero-scroll-indicator {
        bottom: 40px;
        font-size: 14px;
    }
}

.scroll-arrow {
    font-size: 20px;
    margin-top: 8px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* 数据统计栏 - 响应式设计 */
.stats-bar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    padding: 40px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
    }
}

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

.stat-number {
    display: block;
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    color: #002c75;
    margin-bottom: 8px;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
    letter-spacing: 0.3px;
}

.stat-label {
    font-size: 13px;
    color: #002c75;
    font-weight: 500;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

@media (min-width: 768px) {
    .stat-label {
        font-size: 14px;
    }
}

/* Section 通用样式 */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

@media (min-width: 768px) {
    .section-header {
        margin-bottom: 60px;
    }
}

.section-title {
    font-size: clamp(28px, 4vw, 42px) !important;
    font-weight: 700 !important;
    margin: 0 auto 16px auto !important;
    color: #fff !important;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif !important;
    letter-spacing: 0.3px !important;
    text-align: center !important;
}

.section-subtitle {
    font-size: 16px !important;
    color: #fff !important;
    font-weight: 500 !important;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif !important;
    letter-spacing: 0.2px !important;
    text-align: center !important;
    margin: 0 auto !important;
    max-width: 700px !important;
}

/* Digital Tabs Section 特殊样式（深蓝背景） */
.digital-tabs-section .section-title,
.digital-tabs-section .section-subtitle {
    color: #fff;
}

@media (min-width: 768px) {
    .section-subtitle {
        font-size: 18px;
    }
}

/* 服务板块 - 响应式卡片 */
.services-section {
    padding: 60px 0;
    background: var(--bg-secondary);
}

@media (min-width: 768px) {
    .services-section {
        padding: 100px 0;
    }
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 640px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Services Tabs Section */
.services-tabs {
    padding: 80px 0;
    background: #f5f5f5;
}

/* Stats Section - DSV Style */
.stats-section {
    padding: 80px 0;
    background: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

.stat-card {
    text-align: center;
    padding: 24px;
}

.stat-number {
    display: block;
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Insights Section - DSV Style */
.insights-section {
    padding: 80px 0;
    background: #f9f9fb;
}

.insights-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (min-width: 768px) {
    .insights-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.insight-card {
    background: #fff;
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-slow);
}

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

.insight-category {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
}

.insight-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
    line-height: 1.4;
}

.insight-excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.insight-link {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.insight-link:hover {
    text-decoration: underline;
}

/* Digital Tabs Section - DSV Style */
.digital-tabs-section {
    padding: 80px 0;
    background: #002c75;
}

.digital-tabs {
    display: grid !important;
    grid-template-columns: repeat(5, 1fr) !important;
    gap: 20px !important;
    margin-top: 50px !important;
    margin-bottom: 40px !important;
}

@media (max-width: 1200px) {
    .digital-tabs {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    .digital-tabs {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .digital-tabs {
        grid-template-columns: 1fr;
    }
}

.tab-btn {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 20px;
    background: transparent;
    border: 2px solid #fff;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    min-height: 60px;
}

.tab-btn svg {
    width: 28px;
    height: 28px;
    color: #fff;
    stroke-width: 1.5;
    flex-shrink: 0;
}

.tab-btn span {
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
    line-height: 1.3;
    white-space: nowrap;
}

.tab-btn:hover,
.tab-btn.active {
    background: #fff;
    border-color: #fff;
}

.tab-btn:hover svg,
.tab-btn.active svg {
    color: #002c75;
}

.tab-btn:hover span,
.tab-btn.active span {
    color: #002c75;
}

.tab-content {
    background: transparent;
    padding: 0;
    min-height: 450px;
    position: relative;
    overflow: hidden;
}

.tab-panel {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.6s ease;
}

.tab-panel.active {
    position: relative;
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.tab-panel.exit {
    transform: translateX(-100%);
    opacity: 0;
}

.tab-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    background: transparent;
    height: 100%;
    align-items: stretch;
}

@media (max-width: 768px) {
    .tab-content-wrapper {
        grid-template-columns: 1fr;
    }
}

.tab-text {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding-top: 30px;
    padding-bottom: 30px;
}

.tab-text h3 {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
}

.tab-text p {
    font-size: 15px;
    color: rgba(255,255,255,0.9);
    line-height: 1.6;
    margin-bottom: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
}

.tab-features {
    list-style: none;
    padding: 0;
    margin: 0 0 24px 0;
}

.tab-features li {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;
    font-weight: 500;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
}

.tab-text .btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 48px;
    font-size: 15px;
    font-weight: 700;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    width: 220px;
    margin-top: auto;
}

/* Get Started：与全站主按钮一致，白字 + 深蓝渐变底 */
.tab-text .btn-primary {
    background: linear-gradient(135deg, #002c75 0%, #001f55 100%);
    color: #fff;
    border: none;
    box-shadow: 0 4px 16px rgba(0, 44, 117, 0.2);
}

.tab-text .btn-primary:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 44, 117, 0.3);
}

.tab-image {
    display: flex;
    align-items: flex-end;
    justify-content: flex-start;
    padding: 0 0 30px 80px;
}

.digital-tabs-section .tab-image img {
    width: min(100%, 520px);
    height: 340px;
    object-fit: cover;
    object-position: center;
    border-radius: var(--radius-md);
}

/* Per-image crop offsets to keep LOADSTAR logo visible */
.digital-tabs-section .tab-image img.service-img-1 { object-position: 28% 18%; }
.digital-tabs-section .tab-image img.service-img-2 { object-position: 50% 16%; }
.digital-tabs-section .tab-image img.service-img-3 { object-position: 50% 14%; }
.digital-tabs-section .tab-image img.service-img-4 { object-position: 50% 18%; }
.digital-tabs-section .tab-image img.service-img-5 { object-position: 50% 10%; }

@media (max-width: 992px) {
    .tab-image {
        padding: 0 30px 30px 30px;
    }

    .digital-tabs-section .tab-image img {
        width: min(100%, 460px);
        height: 300px;
    }
}

/* Why Choose LOADSTAR Section */
.why-choose-section {
    padding: 80px 0 180px 0;
    background: #f5f5f7;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

@media (min-width: 768px) {
    .why-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.why-card {
    background: #fff;
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-slow);
    text-align: center;
}

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

.why-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: transparent;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #002c75;
    transition: all 0.3s ease;
}

.why-icon svg {
    width: 32px;
    height: 32px;
    stroke-width: 1.5;
}

.why-card:hover .why-icon {
    background: #002c75;
    color: #fff;
}

.why-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #002c75;
    margin-bottom: 12px;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
    letter-spacing: 0.3px;
}

.why-card p {
    font-size: 14px;
    font-weight: 500;
    color: #002c75;
    line-height: 1.6;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
    letter-spacing: 0.2px;
}

/* Trust Badges - Logo Carousel (SEKO Style) */
.trust-carousel {
    margin-top: 60px;
    margin-bottom: 40px;
    padding-top: 40px;
    padding-bottom: 40px;
    border-top: 1px solid rgba(0,44,117,0.1);
    border-bottom: 1px solid rgba(0,44,117,0.1);
    overflow: hidden;
}

.trust-track {
    display: flex;
    gap: 60px;
    animation: trustScroll 30s linear infinite;
    width: fit-content;
}

.trust-slide {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 140px;
}

.trust-logo {
    height: 100px;
    width: auto;
    max-width: 300px;
    object-fit: contain;
    opacity: 0.6;
    filter: grayscale(100%);
    transition: all 0.3s ease;
}

.trust-logo:hover {
    opacity: 1;
    filter: grayscale(0%);
}

@media (max-width: 768px) {
    .trust-slide {
        height: 100px;
    }
    
    .trust-logo {
        height: 75px;
        max-width: 225px;
    }
}

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

.trust-track {
    animation-duration: 45s;
}

@media (max-width: 768px) {
    .trust-track {
        animation-duration: 30s;
    }
}

@media (max-width: 768px) {
    .trust-carousel {
        margin-top: 40px;
    }
    
    .trust-track {
        gap: 40px;
    }
    
    .trust-logo {
        height: 30px;
    }
}

/* CTA Section - DSV Style */
.cta-section {
    padding: 50px 0 100px;
    background: #F5F7FA;
}

.cta-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 25px;
}

.cta-text {
    padding-right: 20px;
}

.cta-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    color: #002664;
    margin-bottom: 24px;
    line-height: 1.3;
    letter-spacing: -0.5px;
}

.cta-description {
    font-size: 18px;
    color: #002664;
    line-height: 1.6;
    font-weight: 400;
}

.cta-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.cta-expert-img {
    max-width: 486px;
    height: auto;
    border-radius: 8px;
    display: block;
    position: relative;
    top: 100px;
}

.cta-action {
    display: flex;
    justify-content: flex-end;
}

.btn-cta-primary {
    display: inline-block;
    padding: 18px 36px;
    background: #002664;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    border-radius: 4px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(0,38,100,0.2);
}

.btn-cta-primary:hover {
    background: #001a4a;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,38,100,0.3);
}

@media (max-width: 1024px) {
    .cta-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .cta-text {
        padding-right: 0;
    }
    
    .cta-action {
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .cta-section {
        padding: 60px 0;
    }
    
    .cta-expert-img {
        max-width: 80%;
    }
}

/* FBA Optimizer Highlight Section - DSV Style */
.optimizer-highlight-section {
    position: relative;
    background: #002664;
    padding: 100px 0;
    overflow: hidden;
}

/* Video Background - DSV Style */
.optimizer-video-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 0;
}

.optimizer-video-bg video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
}

.optimizer-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 38, 100, 0.85);
    z-index: 1;
}

.optimizer-header {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 60px;
    position: relative;
    z-index: 2;
}

.optimizer-section-label {
    display: inline-block;
    color: rgba(255,255,255,0.7);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.optimizer-title {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    line-height: 1.1;
    letter-spacing: -0.5px;
}

.optimizer-subtitle {
    font-size: clamp(16px, 2vw, 20px);
    color: rgba(255,255,255,0.85);
    font-weight: 400;
    line-height: 1.6;
    max-width: 700px;
    margin: 0 auto;
}

/* Statistics Grid - DSV Style */
.optimizer-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto 60px;
    position: relative;
    z-index: 2;
}

@media (max-width: 1024px) {
    .optimizer-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 640px) {
    .optimizer-stats-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

.optimizer-stat-card {
    text-align: center;
    padding: 24px 16px;
}

.optimizer-stat-number {
    display: block;
    font-size: clamp(48px, 6vw, 72px);
    font-weight: 800;
    color: #fff;
    line-height: 1;
    margin-bottom: 12px;
    letter-spacing: -1px;
}

.optimizer-stat-label {
    display: block;
    font-size: 14px;
    color: rgba(255,255,255,0.75);
    font-weight: 500;
    line-height: 1.5;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* CTA Button */
.optimizer-cta {
    text-align: center;
    position: relative;
    z-index: 2;
}

.btn-optimizer-primary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 40px;
    background: #fff;
    color: #002664;
    font-size: 16px;
    font-weight: 700;
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.btn-optimizer-primary svg {
    width: 20px;
    height: 20px;
    stroke-width: 2.5;
}

.btn-optimizer-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

/* Remove old styles */
.optimizer-content,
.optimizer-text,
.optimizer-features,
.optimizer-features li,
.optimizer-actions,
.optimizer-visual,
.optimizer-dashboard,
.dashboard-header,
.dashboard-logo-img,
.dashboard-status,
.status-dot,
.dashboard-content,
.dashboard-metric,
.metric-label,
.metric-value,
.dashboard-chart,
.chart-bar,
.dashboard-footer {
    display: none;
}

/* Case Studies Section */
.cases-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.cases-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 48px;
}

@media (min-width: 768px) {
    .cases-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}




/* ==========================================================================
   CASE STUDIES CAROUSEL - DSV Style (Impeccable Redesign)
   ========================================================================== */

/* Section */
.case-studies-section {
    padding: 60px 0;
    background: #f5f5f7;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    position: relative;
}

.case-studies-section .container {
    padding: 0;
    width: 100%;
    max-width: none;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    color: #002c75;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 18px;
    color: #1a4a7a;
    font-weight: 500;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Swiper Container */
.case-carousel.swiper {
    width: 100%;
    height: 500px;
    padding: 0;
    position: relative;
}

.case-carousel::before,
.case-carousel::after {
    display: none;
}

.case-carousel-track.swiper-wrapper {
    display: flex;
    gap: 0;
    padding: 0;
    height: 500px;
}

/* Case Slide */
.case-slide.swiper-slide {
    width: 100%;
    flex-shrink: 0;
    height: 500px;
    margin: 0;
    transition: all 0.6s ease;
}

/* Case Card */
.case-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-radius: 0;
    overflow: hidden;
    height: 500px;
    box-shadow: none;
    opacity: 1;
    width: 100%;
    max-width: none;
    margin: 0;
}

/* Case Content (Left Side) */
.case-content {
    padding: 48px 40px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: #002c75;
    border-left: none;
}

/* Case Image (Right Side) */
.case-image {
    position: relative;
    overflow: hidden;
    width: 100%;
    min-width: auto;
    background: transparent;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.4s ease;
}

/* Case Brand */
.case-brand {
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 24px;
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Arial', sans-serif;
}

/* Case Author */
.case-author {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.18);
}

/* Quote Block */
.case-quote {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 0;
    font-style: normal;
}

.quote-icon {
    width: 39px;
    height: 20px;
    color: rgba(255,255,255,0.35);
    flex-shrink: 0;
}

.case-quote p {
    font-size: 18px;
    line-height: 1.65;
    color: #fff;
    font-weight: 300;
    font-style: normal;
    margin: 0;
    letter-spacing: 0;
}

/* Author Info */
.case-author {
    display: flex;
    flex-direction: column;
    gap: 3px;
    font-style: normal;
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid rgba(255,255,255,0.18);
}

.author-name {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.author-title {
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    font-weight: 400;
    text-transform: none;
}

/* Case Image (Right Side) */
.case-image {
    background: #002c75;
    position: relative;
    overflow: hidden;
    width: 100%;
    min-width: auto;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.4s ease;
}

.case-card:hover .case-image img {
    transform: scale(1.05);
}

/* Carousel first slide image position tweak */
.case-image img.case-img-1 {
    object-position: 50% 54%;
}


/* LOGIN Button - Navigation */
.login-btn {
    display: inline-flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 4px !important;
    padding: 6px 10px !important;
    font-size: 11px !important;
    font-weight: 700 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.3px !important;
    background: transparent !important;
    color: #002c75 !important;
    border: none !important;
    border-radius: 4px !important;
    transition: all 0.2s ease !important;
    cursor: pointer !important;
    line-height: 1.2 !important;
}

.login-btn:hover {
    background: rgba(0,44,117,0.05) !important;
    color: #002c75 !important;
}

.login-btn svg {
    width: 20px !important;
    height: 20px !important;
    stroke: currentColor !important;
    stroke-width: 2 !important;
    display: block !important;
}

.login-btn span {
    display: block !important;
    text-align: center !important;
}

/* Logged-in: show email readably (avoid ALL-CAPS on email) */
.login-btn.login-btn--user {
    text-transform: none !important;
    letter-spacing: 0.02em !important;
    font-size: 12px !important;
    max-width: min(220px, 42vw) !important;
}

.login-btn.login-btn--user span {
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
    max-width: 100% !important;
}


/* Navigation */




/* Navigation - DSV Bottom Style */
.case-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 20px;
    padding: 20px 0;
    width: 100%;
    position: relative;
    text-align: center;
    min-height: 40px;
    z-index: 10;
}

.case-prev,
.case-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
    opacity: 0;
    z-index: 2;
}

.case-prev { left: calc(50% - 120px); }
.case-next { right: calc(50% - 120px); }

.case-prev:hover,
.case-next:hover {
    opacity: 1;
}

.case-prev svg,
.case-next svg {
    display: none;
}

.case-prev:hover svg,
.case-next:hover svg {
    stroke: #002c75;
}

/* Pagination (Dots) */
.case-pagination {
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
    margin: 0;
}

.swiper-pagination-bullet {
    width: 8px;
    height: 8px;
    margin: 0 !important;
    border-radius: 50%;
    background: #e0e7f0;
    opacity: 1;
    cursor: pointer;
    transition: all 0.3s ease;
}

.swiper-pagination-bullet-active {
    background: #002c75;
    transform: scale(1);
}

/* Responsive */
@media (max-width: 992px) {
    .case-card {
        grid-template-columns: 1fr !important;
    }
    
    .case-image {
        width: 100% !important;
        min-width: 100% !important;
        height: 280px !important;
    }
    
    .case-image img {
        width: 100% !important;
        left: 0 !important;
        transform: none !important;
    }
}

@media (max-width: 768px) {
    .case-slide.swiper-slide {
        width: 100% !important;
    }
    
    .case-content {
        padding: 32px 28px !important;
        padding-left: 32px !important;
    }
    
    .case-image {
        height: 240px !important;
    }
    
    .section-title {
        font-size: 28px !important;
    }
}



/* ==========================================================================
   FBA OPTIMIZER HIGHLIGHT - Clean & Focused Design
   ========================================================================== */



.optimizer-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: center;
}

/* Left Side - Text Content */
.optimizer-text {
    max-width: 600px;
}

.optimizer-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.optimizer-subtitle {
    font-size: 18px;
    color: rgba(255,255,255,0.8);
    font-weight: 500;
    margin-bottom: 32px;
    line-height: 1.6;
}

/* Features List */
.optimizer-features {
    list-style: none;
    padding: 0;
    margin: 0 0 40px 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 0;
    font-size: 16px;
    color: #fff;
    font-weight: 500;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

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

.feature-icon {
    width: 24px;
    height: 24px;
    stroke: #002c75;
    flex-shrink: 0;
}

/* CTA Buttons */
.optimizer-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    font-size: 15px;
    font-weight: 700;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

.btn-primary {
    background: linear-gradient(135deg, #002c75 0%, #001f55 100%);
    color: #fff;
    border: none;
    box-shadow: 0 4px 16px rgba(0,44,117,0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,44,117,0.3);
}

/* <button> 元素会带浏览器默认 color，可能盖住 .btn-primary；表单内尤其明显 */
button.btn.btn-primary,
button.btn-primary {
    color: #fff !important;
    -webkit-text-fill-color: #fff;
}

a.btn.btn-primary {
    color: #fff !important;
    -webkit-text-fill-color: #fff;
}

/* 选项卡内链接型主按钮：继承 .tab-text .btn-primary 的白字与渐变（避免仅 a 选择器盖掉背景） */
.tab-text a.btn.btn-primary {
    color: #fff !important;
    -webkit-text-fill-color: #fff;
    background: linear-gradient(135deg, #002c75 0%, #001f55 100%) !important;
    background-image: linear-gradient(135deg, #002c75 0%, #001f55 100%) !important;
    border: none !important;
    box-shadow: 0 4px 16px rgba(0, 44, 117, 0.2);
}

.tab-text a.btn.btn-primary:hover {
    color: #fff !important;
    -webkit-text-fill-color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 44, 117, 0.3);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-outline:hover {
    background: #fff;
    color: #002c75;
}

.btn-lg {
    padding: 18px 40px;
    font-size: 16px;
}

/* Right Side - Visual */
.optimizer-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.optimizer-icon-wrapper {
    width: 280px;
    height: 280px;
    background: linear-gradient(135deg, #f5f8fc 0%, #e8eff8 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(0,44,117,0.1);
}

.optimizer-icon {
    width: 140px;
    height: 140px;
    stroke: #002c75;
    fill: none;
}

.optimizer-stats {
    position: absolute;
    bottom: -20px;
    right: -20px;
    display: flex;
    gap: 20px;
}

.stat-item {
    background: #fff;
    padding: 20px 28px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,44,117,0.15);
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 800;
    color: #002c75;
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    display: block;
    font-size: 12px;
    color: #666;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Responsive */
@media (max-width: 992px) {
    .optimizer-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .optimizer-text {
        max-width: 100%;
    }
    
    .optimizer-visual {
        order: -1;
    }
}

@media (max-width: 768px) {
    .optimizer-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .optimizer-stats {
        position: relative;
        bottom: auto;
        right: auto;
        margin-top: 40px;
    }
    
    .optimizer-icon-wrapper {
        width: 200px;
        height: 200px;
    }
    
    .optimizer-icon {
        width: 100px;
        height: 100px;
    }
}


/* ==========================================================================
   HERO SECTION - Final Centered Style
   ========================================================================== */

.hero-title {
    font-size: clamp(42px, 5vw, 68px) !important;
    font-weight: 700 !important;
    color: #fff !important;
    margin: 0 auto 20px auto !important;
    line-height: 1.2 !important;
    max-width: 1000px !important;
    text-align: center !important;
    letter-spacing: 0 !important;
    text-shadow: none !important;
}

.hero-description {
    font-size: clamp(18px, 2vw, 22px) !important;
    font-weight: 700 !important;
    color: rgba(255,255,255,1) !important;
    margin: 20px auto 26px auto !important;
    line-height: 1.5 !important;
    max-width: 800px !important;
    text-align: center !important;
    letter-spacing: 0.3px !important;
    text-shadow: none !important;
}

.hero-stats {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 60px !important;
    margin: 50px auto 40px auto !important;
    width: 100% !important;
    text-align: center !important;
}

.hero-stat-number {
    display: block !important;
    font-size: clamp(36px, 5vw, 48px) !important;
    font-weight: 700 !important;
    color: #fff !important;
    margin: 0 auto 10px auto !important;
    line-height: 1.2 !important;
    text-align: center !important;
    letter-spacing: 0 !important;
}

.hero-stat-label {
    display: block !important;
    font-size: 12px !important;
    color: rgba(255,255,255,0.95) !important;
    font-weight: 500 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.5px !important;
    line-height: 1.3 !important;
    text-align: center !important;
    margin: 0 auto !important;
    white-space: nowrap !important;
    max-width: 180px !important;
}


/* ==========================================================================
   WHY CHOOSE & CASE STUDIES - Dark Blue Titles
   ========================================================================== */

.why-choose-section .section-title,
.why-choose-section .section-subtitle,
.case-studies-section .section-title,
.case-studies-section .section-subtitle {
    color: #002c75 !important;
}

/* ==========================================================================
   ABOUT US PAGE STYLES
   ========================================================================== */

.about-hero {
    height: 500px;
}

.about-hero .hero-content {
    justify-content: center;
    text-align: center;
}

.company-structure-section {
    background: var(--primary-gradient);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.company-structure-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/hero-bg.jpg') no-repeat center center;
    background-size: cover;
    opacity: 0.1;
    z-index: 0;
}

.company-structure-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.structure-info {
    max-width: 800px;
    margin: 0 auto;
}

.structure-info .section-title {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 24px;
}

.about-hero .hero-title {
    color: white !important;
}

.about-hero .hero-description {
    color: white !important;
}

.structure-description {
    font-size: 1.2rem;
    line-height: 1.6;
    opacity: 0.9;
}

.company-details-section {
    padding: 80px 0;
    background: white;
}

.company-details-content {
    max-width: 1000px;
    margin: 0 auto;
}

.detail-section-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 40px 0 16px 0;
    color: var(--primary) !important;
}

.detail-section-title:first-child {
    margin-top: 0;
}

.detail-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.global-presence-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.global-presence-section .section-title {
    color: var(--primary) !important;
    font-weight: 600 !important;
}

.global-presence-section .section-subtitle {
    color: var(--primary) !important;
    font-weight: 500 !important;
}

.global-offices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.office-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    text-align: center;
}

.office-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.office-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--primary) !important;
}

.office-description {
    font-size: 0.9rem;
    color: var(--text-secondary) !important;
    line-height: 1.5;
}

/* ==========================================================================
   FOOTER - DSV Style
   ========================================================================== */

.footer {
    background: #002664;
    padding: 60px 0 30px;
    color: #fff;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.2fr;
    gap: 60px;
    margin-bottom: 40px;
}

/* About page: brand | quick links | offices | contact */
.footer-content.footer-content--four-cols {
    grid-template-columns: 1.5fr 1fr 1.15fr 1fr;
}

.footer-brand {
    padding-right: 40px;
}

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: 20px;
    filter: brightness(0) invert(0.5);
    opacity: 1;
}

.footer-tagline {
    font-size: 14px;
    color: rgba(255,255,255,0.5);
    line-height: 1.6;
    margin: 0 0 20px 0;
}

/* Social Media Links */
.footer-social {
    display: flex;
    gap: 16px;
    margin-top: 20px;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-link svg {
    width: 20px;
    height: 20px;
    color: rgba(255,255,255,0.5);
    transition: color 0.3s ease;
}

.social-link:hover {
    background: rgba(255,255,255,0.2);
}

.social-link:hover svg {
    color: #fff;
}

.footer-heading {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    color: #fff;
}

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

.footer-links li {
    font-size: 14px;
    color: rgba(255,255,255,0.75);
    margin-bottom: 16px;
    line-height: 1.6;
}

.footer-links li strong {
    color: #fff;
    font-weight: 600;
    display: block;
    margin-bottom: 4px;
}

.footer-links a {
    color: rgba(255,255,255,0.75);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #fff;
}

.footer-links li.footer-contact-email {
    white-space: nowrap;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    margin: 0;
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-brand {
        padding-right: 0;
        text-align: center;
    }
    
    .footer-logo {
        margin: 0 auto 20px;
    }
    
    .footer {
        padding: 40px 0 20px;
    }
}