/* 全新现代简约UI风格 - 时尚设计 */
:root {
    /* 主色调 - 现代紫色渐变 */
    --primary-color: #7c3aed;
    --primary-dark: #6d28d9;
    --primary-light: #a855f7;
    --primary-rgb: 124, 58, 237;
    
    /* 辅助色 - 现代青色 */
    --secondary-color: #06b6d4;
    --secondary-dark: #0891b2;
    --secondary-rgb: 6, 182, 212;
    
    /* 强调色 - 现代粉色 */
    --accent-color: #ec4899;
    --accent-dark: #db2777;
    --accent-rgb: 236, 72, 153;
    
    /* 文字颜色 */
    --text-color: #1e293b;
    --light-text: #64748b;
    --white-text: #ffffff;
    --dark-text: #0f172a;
    
    /* 背景色 - 现代明亮背景 */
    --bg-color: #ffffff;
    --light-bg: #f8fafc;
    --dark-bg: #f1f5f9;
    --card-bg: #ffffff;
    --section-bg: #f8fafc;
    
    /* 边框和阴影 */
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --glow: 0 0 20px rgba(124, 58, 237, 0.2);
    
    /* 动画和过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* 圆角和间距 */
    --border-radius: 16px;
    --border-radius-lg: 24px;
    --border-radius-xl: 32px;
    --section-padding: 100px 0;
    --container-width: 1200px;
    
    /* 状态颜色 */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
}

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

body {
    font-family: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-color);
    overflow-x: hidden;
    font-weight: 400;
    position: relative;
}

/* 背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(124, 58, 237, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(236, 72, 153, 0.03) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

/* 现代化标题样式 */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-color);
}

h1 {
    font-size: 4rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 2.8rem;
    position: relative;
    color: var(--text-color);
    font-weight: 700;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

h3 {
    font-size: 1.75rem;
    color: var(--text-color);
}

p {
    margin-bottom: 1.5rem;
    color: var(--light-text);
    font-size: 1.1rem;
}

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

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

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* 现代化按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    min-height: 52px;
    letter-spacing: 0.01em;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

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

.btn-primary {
    background: #e74c3c;
    color: var(--white-text);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    color: var(--white-text);
    background: #c0392b;
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
    color: var(--white-text);
    box-shadow: var(--shadow);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    color: var(--white-text);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white-text);
    box-shadow: var(--shadow-xl);
}

.btn-block {
    width: 100%;
}

.btn i {
    margin-right: 8px;
    font-size: 1.1em;
}

/* 表单样式 */
input, select, textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--card-bg);
    color: var(--text-color);
    font-size: 1rem;
    transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.1);
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

.form-group {
    margin-bottom: 20px;
}

/* 头部导航 */
/* 现代化导航栏样式 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(30px);
    border-bottom: 1px solid rgba(124, 58, 237, 0.1);
    z-index: 1000;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    border-bottom: 1px solid rgba(124, 58, 237, 0.15);
}

header.hide {
    transform: translateY(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    max-width: var(--container-width);
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    position: relative;
}

.logo img {
    height: 45px;
    transition: var(--transition);
    filter: drop-shadow(0 2px 8px rgba(124, 58, 237, 0.2));
}

.logo img:hover {
    transform: scale(1.05) rotate(2deg);
    filter: drop-shadow(0 4px 16px rgba(124, 58, 237, 0.3));
}

/* 主导航菜单 */
nav {
    display: flex;
    align-items: center;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 40px;
    margin: 0;
    padding: 0;
}

nav ul li {
    position: relative;
}

nav ul li a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    padding: 16px 8px;
    transition: var(--transition);
    position: relative;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 8px;
}

nav ul li a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    opacity: 0;
    border-radius: var(--border-radius);
    transition: var(--transition);
    z-index: -1;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
    transform: translateX(-50%);
}

nav ul li a:hover::before {
    opacity: 0.1;
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 60%;
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* 导航栏按钮 */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-actions .btn {
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.nav-actions .btn::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;
}

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

.nav-actions .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(124, 58, 237, 0.3);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--border-radius);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: var(--transition);
    border-radius: 2px;
}

/* 英雄区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--bg-color) 0%, var(--section-bg) 100%);
    overflow: hidden;
    padding-top: 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 70%, rgba(8, 145, 178, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(249, 115, 22, 0.1) 0%, transparent 50%);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero h1 {
    margin-bottom: 24px;
    animation: fadeInDown 1s ease-out;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: var(--light-text);
    animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 特性区域 */
.features {
    padding: var(--section-padding);
    position: relative;
    background: var(--section-bg);
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(8, 145, 178, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(249, 115, 22, 0.05) 0%, transparent 50%);
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

.section-header h2 {
    margin-bottom: 20px;
}

.section-header h2::after {
    left: 50%;
    transform: translateX(-50%);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--light-text);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    position: relative;
    z-index: 2;
}

.feature-item {
    background: var(--card-bg);
    padding: 32px;
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(8, 145, 178, 0.05), rgba(16, 185, 129, 0.05));
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

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

.feature-item:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--white-text);
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.feature-item:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.feature-item h3 {
    margin-bottom: 12px;
    color: var(--text-color);
}

.feature-item p {
    color: var(--light-text);
    line-height: 1.6;
}

/* 公告区域 */
.announcements {
    padding: var(--section-padding);
    background: var(--bg-color);
    position: relative;
}

.announcements::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 70%, rgba(249, 115, 22, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(8, 145, 178, 0.05) 0%, transparent 50%);
    z-index: 1;
}

.news-filters {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 20px;
    position: relative;
    z-index: 2;
}

.filter-tabs {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 10px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-tab:hover {
    background: var(--primary-color);
    color: var(--white-text);
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.filter-tab.active {
    background: var(--primary-color);
    color: var(--white-text);
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.search-box {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-box input {
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--card-bg);
    color: var(--text-color);
    width: 280px;
}

.search-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.1);
}

.search-box button {
    padding: 10px 16px;
    background: var(--primary-color);
    color: var(--white-text);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.search-box button:hover {
    background: var(--primary-dark);
    box-shadow: var(--shadow);
}

.announcements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 24px;
    position: relative;
    z-index: 2;
}

.announcement-item {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    box-shadow: var(--shadow);
}

.announcement-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.announcement-item.important-item {
    border-color: var(--secondary-color);
    box-shadow: 0 0 20px rgba(249, 115, 22, 0.1);
}

.announcement-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.announcement-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.announcement-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 12px;
    background: var(--primary-color);
    color: var(--white-text);
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: var(--shadow);
}

.announcement-badge.important {
    background: var(--secondary-color);
}

.announcement-content {
    padding: 24px;
}

.announcement-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
    font-size: 0.9rem;
    color: var(--light-text);
}

.announcement-meta i {
    color: var(--primary-color);
}

.announcement-content h3 {
    margin-bottom: 12px;
    color: var(--text-color);
    font-size: 1.2rem;
}

.announcement-content p {
    color: var(--light-text);
    margin-bottom: 16px;
    line-height: 1.6;
}

.announcement-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.tag {
    padding: 4px 12px;
    background: rgba(8, 145, 178, 0.1);
    color: var(--primary-color);
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    border: 1px solid rgba(8, 145, 178, 0.2);
}

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.read-more i {
    transition: var(--transition);
}

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

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

/* 分页 */
.pagination-container {
    display: flex;
    justify-content: center;
    margin-top: 60px;
    position: relative;
    z-index: 2;
}

.pagination {
    display: flex;
    gap: 8px;
    align-items: center;
    background: var(--card-bg);
    padding: 8px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.pagination a, .pagination span {
    padding: 10px 14px;
    border-radius: var(--border-radius);
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    min-width: 40px;
    text-align: center;
}

.pagination a:hover, .pagination a.active {
    background: var(--primary-color);
    color: var(--white-text);
    box-shadow: var(--shadow);
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    animation: modalFadeIn 0.3s ease-out;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 20px;
    box-sizing: border-box;
}

.modal-content {
    padding-top: 400px;
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 0;
    width: 90%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
    transform: translateY(0);
    margin: auto;
    /* 确保内容居中 */
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.modal.show .modal-content {
    animation: modalSlideIn 0.3s ease-out;
}

.modal-large {
    max-width: 800px;
}

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

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

/* 模态框响应式优化 */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        max-width: 400px;
        margin: auto;
    }
    
    .modal-header {
        padding: 30px 30px 0;
    }
    
    .modal form {
        padding: 0 30px 30px;
    }
    
    .modal-body {
        padding: 30px;
    }
    
    .modal-footer {
        padding: 0 30px 30px;
    }
    
    .modal-header h2 {
        font-size: 1.6rem;
    }
}

@media (max-width: 576px) {
    .modal-content {
        width: 98%;
        max-width: 350px;
        margin: auto;
    }
    
    .modal-header {
        padding: 25px 25px 0;
    }
    
    .modal form {
        padding: 0 25px 25px;
    }
    
    .modal-body {
        padding: 25px;
    }
    
    .modal-footer {
        padding: 0 25px 25px;
    }
    
    .modal-header h2 {
        font-size: 1.4rem;
    }
    
    .modal .form-group input {
        padding: 12px 14px;
        font-size: 0.95rem;
    }
    
    .modal .btn-block {
        padding: 14px;
        font-size: 1rem;
    }
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 28px;
    font-weight: bold;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.05);
}

.close:hover {
    color: var(--primary-color);
    background: rgba(8, 145, 178, 0.1);
    transform: rotate(90deg);
}

.modal-header {
    padding: 40px 40px 0;
    text-align: center;
    position: relative;
}

.modal-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.modal-header h2 {
    margin-bottom: 12px;
    color: var(--text-color);
    font-size: 1.8rem;
    font-weight: 700;
}

.modal-header h2 i {
    margin-right: 8px;
    color: var(--primary-color);
}

.modal-header p {
    color: var(--light-text);
    font-size: 0.95rem;
    margin: 0;
}

.modal-body {
    padding: 40px;
}

.modal-footer {
    padding: 0 40px 40px;
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* 登录注册表单专用样式 */
.modal form {
    padding: 0 40px 40px;
}

.modal .form-group {
    margin-bottom: 24px;
}

.modal .form-group label {
    display: flex;
    align-items: center;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.modal .form-group label i {
    margin-right: 8px;
    color: var(--primary-color);
    width: 16px;
}

.modal .form-group input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--input-bg);
    color: var(--text-color);
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.modal .form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
    transform: translateY(-1px);
}

.modal .form-group input:hover {
    border-color: rgba(124, 58, 237, 0.5);
}

.modal .btn-block {
    width: 100%;
    padding: 16px;
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 8px;
    position: relative;
    overflow: hidden;
}

.modal .btn-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

.modal .form-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.modal .form-footer p {
    color: var(--light-text);
    font-size: 0.9rem;
    margin: 0;
}

.modal .form-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.modal .form-footer a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* 复选框样式 */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin: 0;
    margin-top: 2px;
}

.checkbox-group label {
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
    cursor: pointer;
}

.checkbox-group a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.checkbox-group a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* 页脚 */
footer {
    background: #2c2c2c;
    color: #ffffff;
    padding: 40px 0 20px 0;
    position: relative;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.footer-main {
    margin-bottom: 20px;
}

.footer-company-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #ffffff;
}

.footer-address {
    font-size: 14px;
    color: #cccccc;
    margin-bottom: 8px;
    line-height: 1.5;
}

.footer-copyright {
    font-size: 14px;
    color: #cccccc;
    margin-bottom: 15px;
}

.footer-contact-info {
    position: absolute;
    right: 20px;
    top: 40px;
    text-align: right;
    font-size: 14px;
    color: #cccccc;
    line-height: 1.8;
}

.footer-separator {
    height: 1px;
    background: #555555;
    margin: 20px 0;
    width: 100%;
}

.footer-icp {
    font-size: 14px;
    color: #cccccc;
}

.footer-icp a {
    color: #cccccc;
    text-decoration: underline;
}

.footer-icp a:hover {
    color: #ffffff;
}

/* 为什么选择我们区域样式 */
.why-choose-us {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.why-choose-us::before {
    content: '';
    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 1000 1000"><defs><filter id="blur"><feGaussianBlur stdDeviation="3"/></filter></defs><rect width="100%" height="100%" fill="rgba(0,0,0,0.3)"/><circle cx="200" cy="200" r="50" fill="rgba(255,255,255,0.1)" filter="url(%23blur)"/><circle cx="800" cy="300" r="80" fill="rgba(255,255,255,0.1)" filter="url(%23blur)"/><circle cx="400" cy="700" r="60" fill="rgba(255,255,255,0.1)" filter="url(%23blur)"/></svg>');
    opacity: 0.6;
}

.why-choose-content {
    position: relative;
    z-index: 2;
}

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

.why-choose-card {
    background: #ffffff;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.why-choose-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15);
}

.why-choose-card h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #333333;
    margin-bottom: 20px;
    position: relative;
}

.card-wave {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    margin: 0 auto 20px;
    border-radius: 2px;
    position: relative;
}

.card-wave::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    width: 100%;
    height: 8px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 4px;
    opacity: 0.3;
}

.why-choose-card p {
    font-size: 1rem;
    color: #666666;
    line-height: 1.6;
    margin: 0;
}

/* 关于我们页面样式 */
.about-content-box {
    max-width: 800px;
    margin: 60px auto;
    padding: 60px 40px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.about-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333333;
    margin-bottom: 40px;
    text-align: center;
}

.about-text {
    text-align: left;
    line-height: 1.8;
}

.about-text p {
    font-size: 1.1rem;
    color: #555555;
    margin-bottom: 24px;
    line-height: 1.8;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .footer-contact-info {
        position: static;
        text-align: center;
        margin-top: 15px;
    }
    
    .footer-content {
        padding: 0 15px;
    }
    
    .about-content-box {
        margin: 40px auto;
        padding: 40px 20px;
    }
    
    .about-title {
        font-size: 2rem;
        margin-bottom: 30px;
    }
    
    .about-text p {
        font-size: 1rem;
        margin-bottom: 20px;
    }
    
    .why-choose-cards {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 20px;
    }
    
    .why-choose-card {
        padding: 30px 20px;
    }
    
    .why-choose-card h3 {
        font-size: 1.5rem;
    }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    :root {
        --container-width: 1140px;
        --section-padding: 80px 0;
    }
    
    h1 {
        font-size: 3rem;
    }
    
    h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 992px) {
    :root {
        --container-width: 960px;
    }
    

    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .news-section .news-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .page-banner {
        padding: 60px 0;
    }
    
    .page-banner h1 {
        font-size: 2.2rem;
    }
    

    
    .news-section .news-grid {
        grid-template-columns: 1fr;
    }
    
    .news-item.featured {
        grid-column: 1;
    }
    
    .news-item.featured .news-image,
    .news-item.featured .news-content {
        grid-column: 1;
    }
    
    .menu-toggle {
        display: flex;
        background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
        border: none;
        padding: 12px;
        border-radius: var(--border-radius);
        box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
    }
    
    .menu-toggle:hover {
        transform: scale(1.05);
        box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
    }
    
    .menu-toggle span {
        background: var(--white-text);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    }
    
    nav {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(30px);
        border-top: 1px solid rgba(124, 58, 237, 0.1);
        transform: translateY(-100%);
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        opacity: 0;
        visibility: hidden;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    }
    
    nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    nav ul {
        flex-direction: column;
        padding: 24px;
        gap: 8px;
    }
    
    nav ul li a {
        padding: 20px 16px;
        border-radius: var(--border-radius);
        border: 1px solid transparent;
        transition: var(--transition);
        font-size: 1.1rem;
        font-weight: 600;
    }
    
    nav ul li a:hover {
        background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
        color: var(--white-text);
        border-color: transparent;
        transform: translateX(8px);
        box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
    }
    
    nav ul li a::after {
        display: none;
    }
    
    .nav-actions {
        display: none;
    }
    
    .hero {
        padding-top: 120px;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .announcements-secondary {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 20px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .page-banner h1 {
        font-size: 1.8rem;
    }
    
    .page-banner p {
        font-size: 1rem;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
}

/* 加载动画 */
.loading-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.95), rgba(236, 72, 153, 0.9));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(10px);
}

.loader {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top: 3px solid var(--white-text);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
    position: relative;
}

.loader::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border: 3px solid transparent;
    border-top: 3px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: spin 1.5s linear infinite reverse;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loader-text {
    color: var(--white-text);
    font-size: 1.1rem;
    font-weight: 500;
    text-align: center;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* 错误和空状态 */
.error-container, .empty-container {
    text-align: center;
    padding: 80px 20px;
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.error-message, .empty-message {
    color: var(--text-color);
    font-size: 1.2rem;
    margin-bottom: 16px;
}

.error-message i, .empty-message i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: block;
}

.empty-message i {
    color: var(--accent-color);
}

.error-message p, .empty-message p {
    color: var(--light-text);
    margin-top: 12px;
}

/* 用户菜单 */
.user-menu {
    position: relative;
    display: inline-block;
}

.user-menu-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.user-menu-header:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.user-menu-header i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.user-menu-header span {
    color: var(--text-color);
    font-weight: 500;
}

.user-menu ul {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xl);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1000;
}

.user-menu:hover ul {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-menu ul li {
    border-bottom: 1px solid var(--border-color);
}

.user-menu ul li:last-child {
    border-bottom: none;
}

.user-menu ul li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    color: var(--text-color);
    transition: var(--transition);
}

.user-menu ul li a:hover {
    background: rgba(8, 145, 178, 0.1);
    color: var(--primary-color);
}

.user-menu ul li a i {
    color: var(--primary-color);
    width: 16px;
    text-align: center;
}

/* 按钮加载状态 */
.btn .fa-spinner {
    animation: spin 1s linear infinite;
}

/* 文章样式 */
.article-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

.article-header {
    text-align: center;
    margin-bottom: 40px;
}

.article-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
    color: var(--light-text);
    font-size: 0.9rem;
}

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

.article-meta i {
    color: var(--primary-color);
}

.article-header h1 {
    margin-bottom: 16px;
    font-size: 2.5rem;
}

.article-tags {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

article {
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    line-height: 1.8;
}

article p {
    margin-bottom: 20px;
    color: var(--light-text);
}

article h2, article h3 {
    margin: 30px 0 15px;
    color: var(--text-color);
}

article ul, article ol {
    margin: 20px 0;
    padding-left: 20px;
}

article li {
    margin-bottom: 8px;
    color: var(--light-text);
}

.article-note {
    background: rgba(8, 145, 178, 0.1);
    border-left: 4px solid var(--primary-color);
    padding: 20px;
    margin: 30px 0;
    border-radius: var(--border-radius);
}

.article-signature {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: right;
    color: var(--light-text);
    font-style: italic;
}

.related-articles {
    margin-top: 60px;
}

.related-articles h3 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 1.8rem;
    color: var(--text-color);
}

.related-articles h3::after {
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.related-item {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.related-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.related-item h4 {
    padding: 20px;
    color: var(--text-color);
    margin: 0;
}

.related-date {
    padding: 0 20px 20px;
    color: var(--light-text);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .article-container {
        padding: 20px 15px;
    }
    
    article {
        padding: 30px 20px;
    }
    
    .article-header h1 {
        font-size: 2rem;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
} 


/* 可加到 style.css 或 index.html 的 <style> 标签内 */
.modal-content.modal-large {
 
    max-height: 80vh;   /* 弹窗最大高度为视口80% */
    overflow-y: auto;   /* 超出部分可滚动 */
  }
  .article-content {

    max-height: 60vh;   /* 文章内容最大高度为视口60% */
    overflow-y: auto;
    padding-right: 8px; /* 防止滚动条遮挡文字 */
  }


  .modal-content.modal-extra-large{
    padding-top: 350px;
  }

/* Banner轮播图样式优化 */
.banner-carousel {
  position: relative;
  width: 100vw;
  min-height: 680px;
  background: #f5f6fa;
  overflow: hidden;
  margin-bottom: 0;
}
.carousel-track {
  display: flex;
  transition: transform 0.7s cubic-bezier(0.4,0,0.2,1);
  will-change: transform;
}
.carousel-slide {
  min-width: 100vw;
  min-height: 680px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  position: relative;
  background: none;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s;
}
.carousel-slide.active {
  opacity: 1;
  pointer-events: auto;
  z-index: 2;
}
.banner-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  width: 100vw;
  height: 100%;
  background: url('https://images.unsplash.com/photo-1519389950473-47ba0277781c?auto=format&fit=crop&w=1500&q=80') center center/cover no-repeat;
  object-fit: cover;
  z-index: 0;
}
.banner-bg::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg,rgba(0,0,0,0.38) 0%,rgba(0,0,0,0.18) 60%,rgba(0,0,0,0.45) 100%);
  z-index: 1;
}
.banner-content {
  position: relative;
  z-index: 2;
  margin-top: 120px;
  text-align: center;
  color: #fff;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
.banner-title {
  font-size: 3.2rem;
  font-weight: 800;
  margin-bottom: 22px;
  letter-spacing: 2px;
  text-shadow: 0 4px 24px rgba(0,0,0,0.22);
  line-height: 1.18;
  word-break: break-all;
}
.banner-subtitle {
    color: #fff;
  font-size: 1.5rem;
  margin-bottom: 38px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.16);
  line-height: 1.5;
}
.banner-btn {
  font-size: 1.15rem;
  padding: 14px 44px;
  border-radius: 28px;
  background: #e74c3c;
  color: #fff;
  border: none;
  box-shadow: 0 4px 16px rgba(231,76,60,0.14);
  transition: background 0.2s;
  font-weight: 600;
  margin-top: 10px;
}
.banner-btn:hover {
  background: #c0392b;
}

/* 优势面板优化 */
.banner-advantage-panel {
  display: flex;
  align-items: stretch;
  justify-content: center;
  margin: 80px auto 0 auto;
  max-width: 1200px;
  width: 100%;
  z-index: 2;
  position: relative;
  background: none;
}
.advantage-left {
  background: #e74c3c;
  color: #fff;
  border-radius: 0 0 0 32px;
  padding: 48px 40px 48px 40px;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  position: relative;
  box-shadow: 0 4px 24px rgba(231,76,60,0.10);
}
.advantage-title {
  font-size: 1.7rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.advantage-desc {
  font-size: 1.15rem;
  margin-bottom: 20px;
}
.advantage-underline {
  width: 48px;
  height: 4px;
  background: #fff;
  border-radius: 2px;
  margin-top: 10px;
}
.advantage-cards {
  display: flex;
  background: #fff;
  border-radius: 0 0 32px 0;
  box-shadow: 0 8px 32px rgba(0,0,0,0.10);
  padding: 44px 40px;
  gap: 80px;
  align-items: center;
  flex: 1;
  min-width: 0;
}
.advantage-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  padding: 0 18px;
}
.advantage-icon {
  width: 62px;
  height: 62px;
  background: #fff0f0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: #e74c3c;
  margin-bottom: 20px;
  position: relative;
  box-shadow: 0 2px 12px rgba(231,76,60,0.10);
}
.advantage-icon .icon-24h {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
  font-size: 1.1rem;
  color: #fff;
  background: #e74c3c;
  border-radius: 50%;
  padding: 2px 8px;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(231,76,60,0.14);
}
.advantage-num {
  font-size: 1.18rem;
  color: #222;
  margin-bottom: 12px;
  font-weight: 600;
}
.advantage-wave {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, #e74c3c, #fff0f0);
  border-radius: 2px;
  margin: 0 auto 0;
  opacity: 0.5;
}

/* 轮播图控制优化 */
.carousel-controls {
  position: absolute;
  left: 50%;
  bottom: 38px;
  transform: translateX(-50%);
  display: flex;
  gap: 18px;
  z-index: 10;
}
.carousel-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid #e74c3c;
  opacity: 0.7;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
}
.carousel-dot.active {
  background: #e74c3c;
  opacity: 1;
}
.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.92);
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  font-size: 1.7rem;
  color: #e74c3c;
  box-shadow: 0 2px 8px rgba(0,0,0,0.10);
  cursor: pointer;
  z-index: 10;
  transition: background 0.2s;
}
.carousel-arrow-left { left: 36px; }
.carousel-arrow-right { right: 36px; }
.carousel-arrow:hover { background: #e74c3c; color: #fff; }

/* Banner2卡片适配优化 */
.why-choose-cards-banner {
  margin: 80px auto 0 auto;
  background: transparent;
  box-shadow: none;
  padding: 0;
  display: flex;
  gap: 56px;
  justify-content: center;
}
.why-choose-cards-banner .why-choose-card {
  min-width: 260px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.10);
  padding: 44px 28px;
}

@media (max-width: 1100px) {
  .banner-title { font-size: 2.2rem; }
  .banner-content { margin-top: 80px; }
  .banner-advantage-panel, .why-choose-cards-banner { gap: 24px; }
  .advantage-cards { gap: 24px; padding: 24px 12px; }
}
@media (max-width: 900px) {
  .banner-carousel, .carousel-slide { min-height: 520px; }
  .banner-content { margin-top: 60px; }
  .banner-advantage-panel, .why-choose-cards-banner {
    flex-direction: column;
    gap: 20px;
    align-items: center;
  }
  .advantage-cards {
    flex-direction: column;
    gap: 20px;
    padding: 18px 8px;
  }
  .why-choose-cards-banner .why-choose-card {
    min-width: 0;
    width: 100%;
  }
}
@media (max-width: 600px) {
  .banner-carousel, .carousel-slide { min-height: 400px; }
  .banner-title { font-size: 1.2rem; }
  .banner-content { margin-top: 24px; padding: 0 8px; }
  .banner-advantage-panel { flex-direction: column; padding: 0 4px; margin-top: 32px; }
  .advantage-left { border-radius: 16px 16px 0 0; min-width: 0; padding: 16px 6px; }
  .advantage-cards { border-radius: 0 0 16px 16px; }
  .why-choose-cards-banner { flex-direction: column; gap: 10px; margin-top: 32px; }
  .why-choose-cards-banner .why-choose-card { padding: 18px 6px; }
}