/* 基础样式 */
:root {
    --primary-red: #e74c3c;
    --dark-red: #c0392b;
    --light-red: #ff6b6b;
    --patriotic-red: #d7000f;
    --patriotic-yellow: #ffde00;
    --dark-blue: #2c3e50;
    --light-blue: #3498db;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --dark-gray: #6c757d;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮样式 */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 16px;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--patriotic-red), var(--dark-red));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--dark-red), #a71c1c);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(199, 0, 15, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--patriotic-red);
    border: 2px solid var(--patriotic-red);
}

.btn-secondary:hover {
    background-color: rgba(215, 0, 15, 0.1);
    transform: translateY(-2px);
}

/* 头部样式 */
.header {
    background-color: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo a {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.logo-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--patriotic-red), var(--dark-red));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 28px;
}

.logo-text h1 {
    font-size: 24px;
    color: var(--patriotic-red);
    margin-bottom: 0px;
}

.logo-text p {
    font-size: 14px;
    color: var(--dark-gray);
}

.nav ul {
    display: flex;
    list-style: none;
    gap: 20px;
}

.nav a {
    text-decoration: none;
    color: var(--dark-blue);
    font-weight: 500;
    font-size: 16px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav a:hover, .nav a.active {
    color: var(--patriotic-red);
}

.nav a.active {
    font-weight: 600;
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--dark-blue);
}

/* 英雄区样式 */
.hero {
    padding: 60px 0 30px;
    background: linear-gradient(135deg, #fff5f5 0%, #fff 100%);
}

.hero-content {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

.hero-left, .hero-right {
    flex: 1;
}

.china-map {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    height: 400px;
}

.map-container {
    position: relative;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.map-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgb(215 0 15 / 48%);
    color: white;
    padding: 20px;
    text-align: center;
}

.map-overlay h3 {
    font-size: 22px;
    margin-bottom: 5px;
}

.map-overlay p {
    font-size: 16px;
    opacity: 0.9;
}

.patriotic-elements {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    height: 100%;
}

.element-item {
    background: white;
    border-radius: var(--border-radius);
    padding: 25px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--patriotic-red);
}

.element-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.element-item i {
    font-size: 36px;
    color: var(--patriotic-red);
    margin-bottom: 15px;
}

.element-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--dark-blue);
}

.element-item p {
    font-size: 14px;
    color: var(--dark-gray);
}

/* 访问统计样式 */
.visit-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: white;
    padding: 20px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    min-width: 180px;
}

.stat-item i {
    font-size: 36px;
    color: var(--patriotic-red);
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark-blue);
}

.stat-label {
    font-size: 14px;
    color: var(--dark-gray);
}

/* 爱国口号样式 */
.patriotic-slogans {
    padding: 60px 0;
    background-color: var(--light-gray);
}

.section-title {
    text-align: center;
    font-size: 32px;
    color: var(--dark-blue);
    margin-bottom: 40px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--patriotic-red);
    border-radius: 2px;
}

.slogans-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.slogan-item {
    padding: 30px;
    border-radius: var(--border-radius);
    color: white;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.slogan-item:hover {
    transform: translateY(-5px);
}

.slogan-item i {
    font-size: 40px;
    margin-bottom: 20px;
    opacity: 0.9;
}

.slogan-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.slogan-item p {
    font-size: 16px;
    opacity: 0.95;
}

/* 四个自信样式 */
.four-confidences {
    margin-bottom: 60px;
}

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

.confidence-item {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--patriotic-red);
}

.confidence-item:hover {
    transform: translateY(-5px);
}

.confidence-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--patriotic-red), var(--light-red));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 30px;
}

.confidence-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--dark-blue);
}

.confidence-item p {
    font-size: 15px;
    color: var(--dark-gray);
    line-height: 1.6;
}

/* 核心价值观样式 */
/* 核心价值观样式 */
.core-values {
    padding: 60px 0;
    background: linear-gradient(135deg, #fff5f5 0%, #fff 100%);
    position: relative;
    overflow: hidden;
}

.core-values::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(215, 0, 15, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: float 20s linear infinite;
    pointer-events: none;
}

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

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: var(--dark-gray);
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.core-values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

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

@media (max-width: 768px) {
    .core-values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .core-values-grid {
        grid-template-columns: 1fr;
    }
}

.value-item {
    background: white;
    border-radius: 15px;
    padding: 25px 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(215, 0, 15, 0.1);
}

.value-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #ff6b6b, #ee5a52, #ff9f43, #feca57);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.value-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(215, 0, 15, 0.15);
    border-color: rgba(215, 0, 15, 0.3);
}

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

.value-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 36px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.value-icon::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), transparent);
}

.value-item:hover .value-icon {
    transform: rotateY(180deg) scale(1.1);
}

.value-item h3 {
    font-size: 24px;
    color: var(--dark-blue);
    margin-bottom: 10px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--dark-blue), #2c3e50);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.value-item p {
    font-size: 16px;
    color: var(--dark-gray);
    line-height: 1.5;
    margin-bottom: 15px;
    min-height: 48px;
}

.value-desc {
    font-size: 14px;
    color: white;
    background: linear-gradient(135deg, var(--patriotic-red), var(--dark-red));
    padding: 8px 15px;
    border-radius: 20px;
    display: inline-block;
    font-weight: 500;
    box-shadow: 0 4px 10px rgba(215, 0, 15, 0.2);
    transition: all 0.3s ease;
}

.value-item:hover .value-desc {
    transform: scale(1.05);
    box-shadow: 0 6px 15px rgba(215, 0, 15, 0.3);
}

/* 核心价值观解释 */
.core-values-explanation {
    background: linear-gradient(135deg, var(--dark-blue), #34495e);
    border-radius: 20px;
    padding: 40px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: center;
    color: white;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
    margin-top: 40px;
    position: relative;
    overflow: hidden;
}

.core-values-explanation::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 80px 80px;
    animation: float 30s linear infinite reverse;
}

@media (max-width: 768px) {
    .core-values-explanation {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.explanation-content h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: white;
    display: flex;
    align-items: center;
    gap: 15px;
}

.explanation-content h3 i {
    color: #ffde00;
    font-size: 32px;
}

.explanation-content p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 15px;
    opacity: 0.9;
}

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

.image-container {
    width: 180px;
    height: 180px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    position: relative;
}

.image-container::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(255, 222, 0, 0.2), rgba(215, 0, 15, 0.2));
    z-index: -1;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 0.5;
    }
}

.image-container i {
    font-size: 80px;
    color: #ffde00;
    text-shadow: 0 0 20px rgba(255, 222, 0, 0.5);
}

/* 最新留言预览样式 */
.latest-messages {
    padding: 60px 0;
    background-color: white;
}

.messages-preview {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.message-preview-item {
    background: var(--light-gray);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--patriotic-red);
}

.message-preview-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.message-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.message-avatar i {
    font-size: 40px;
    color: var(--patriotic-red);
}

.message-info h4 {
    font-size: 18px;
    color: var(--dark-blue);
    margin-bottom: 5px;
}

.message-date {
    font-size: 14px;
    color: var(--dark-gray);
}

.message-content p {
    font-size: 15px;
    color: #555;
    line-height: 1.6;
}

.view-all-container {
    text-align: center;
}

.no-messages {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    background: var(--light-gray);
    border-radius: var(--border-radius);
    color: var(--dark-gray);
}

/* 页脚样式 */
.footer {
    background-color: var(--dark-blue);
    color: white;
    padding: 40px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footerlogo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-logo .logo-icon {
    margin-bottom: 15px;
}

.footer-logo h3 {
    font-size: 22px;
    margin-bottom: 10px;
}

.footer-logo p {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 5px;
}

.footer-links h4, .footer-contact h4 {
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after, .footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--patriotic-red);
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #ddd;
    text-decoration: none;
    transition: var(--transition);
    font-size: 15px;
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    font-size: 15px;
    opacity: 0.9;
}

.footer-contact i {
    color: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    opacity: 0.7;
}

/* 返回顶部和底部按钮 */
.scroll-buttons {
    position: fixed;
    right: 30px;
    bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 999;
}

.scroll-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--patriotic-red), var(--dark-red));
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 15px rgba(215, 0, 15, 0.3);
    transition: var(--transition);
}

.scroll-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(215, 0, 15, 0.4);
}

/* 移动端导航菜单 */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background-color: white;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    z-index: 1001;
    transition: var(--transition);
    padding: 10px 20px;
    display: flex;
    flex-direction: column;
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--medium-gray);
}

.mobile-nav-header h3 {
    color: var(--dark-blue);
}

.mobile-nav-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark-gray);
    cursor: pointer;
}

.mobile-nav ul {
    list-style: none;
}

.mobile-nav li {
    margin-bottom: 10px;
}

.mobile-nav a {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px 15px;
    color: var(--dark-blue);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.mobile-nav a:hover, .mobile-nav a.active {
    background-color: rgba(215, 0, 15, 0.1);
    color: var(--patriotic-red);
}

.mobile-nav a i {
    width: 20px;
    text-align: center;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-content {
        flex-direction: column;
    }
    
    .slogans-grid, .confidences-grid, .messages-preview {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .visit-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .patriotic-elements {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
    padding: 30px 0 30px;
    }
    
    .slogans-grid, .confidences-grid, .messages-preview, .footer-content {
        grid-template-columns: 1fr;
    }
    
    .visit-stats {
        flex-direction: column;
        align-items: center;
    }
    
    .stat-item {
        width: 100%;
        max-width: 300px;
    }
    
    .patriotic-elements {
        grid-template-columns: 1fr;
    }
    
    .scroll-buttons {
        right: 15px;
        bottom: 15px;
    }
    
    .scroll-btn {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .logo-text h1 {
        font-size: 20px;
    }
    
    .logo-text p {
        font-size: 12px;
    }
    
    .section-title {
        font-size: 26px;
    }
    
    .slogan-item, .confidence-item, .message-preview-item {
        padding: 20px;
    }
    
    .element-item {
        padding: 20px 15px;
    }
}