/* =====================================================================
   志丹县保安实业集团 - 方案一（经典国企稳重风·红色主调）主样式表
   版本: v1.0.0
   主色调: 中国红 #C41E24 (60%) | 深海蓝 #1B3A5C (20%) | 高级灰 (20%)
   设计风格: 稳重、庄重、正式、传统左右对称布局、经典分段式板块排列
   字体: Noto Serif SC
   ===================================================================== */

/* ==================== CSS 变量系统 ==================== */
:root {
    /* 核心色彩 - 中国红主调 */
    --red-primary: #C41E24;
    --red-dark: #A31820;
    --red-light: #E8494F;
    --red-bg: #FEF2F2;
    --red-gradient: linear-gradient(135deg, #C41E24 0%, #A31820 50%, #8B1518 100%);
    --red-glow: rgba(196, 30, 36, 0.3);

    /* 深海蓝辅色 */
    --blue-primary: #1B3A5C;
    --blue-dark: #0D2137;
    --blue-deep: #091829;
    --blue-light: #2C5F8A;

    /* 高级灰色系 */
    --gray-50: #F8F9FA;
    --gray-100: #F0F0F0;
    --gray-200: #E0E0E0;
    --gray-300: #CCCCCC;
    --gray-400: #999999;
    --gray-500: #666666;
    --gray-600: #555555;
    --gray-700: #444444;
    --gray-800: #333333;
    --gray-900: #222222;

    /* 文字色 */
    --text-primary: #222222;
    --text-secondary: #555555;
    --text-muted: #888888;
    --text-light: #FFFFFF;
    --text-light-dim: rgba(255, 255, 255, 0.85);
    --text-light-muted: rgba(255, 255, 255, 0.65);

    /* 背景色 */
    --bg-white: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-gray: #F5F5F5;
    --bg-dark: #1A1A2E;
    --bg-footer: #0D2137;

    /* 阴影 */
    --shadow-xs: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.10);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    --shadow-red: 0 8px 30px rgba(196, 30, 36, 0.20);
    --shadow-blue: 0 8px 30px rgba(27, 58, 92, 0.20);

    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-round: 50%;

    /* 过渡 */
    --ease-out: cubic-bezier(0.25, 1, 0.5, 1);
    --transition-fast: 0.2s var(--ease-out);
    --transition-normal: 0.35s var(--ease-out);
    --transition-slow: 0.5s var(--ease-out);

    /* 字体 */
    --font-family: 'Noto Serif SC', 'PingFang SC', 'Microsoft YaHei', serif;

    /* 间距 */
    --section-py: 100px;
    --section-py-mobile: 60px;
    --container-max: 1320px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    background-color: var(--bg-white);
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    pointer-events: none;
    -webkit-user-drag: none;
    user-select: none;
    -webkit-user-select: none;
}

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

ul, ol {
    list-style: none;
}

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

/* ==================== 滚动进度条 ==================== */
.scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--red-gradient);
    z-index: 99999;
    transition: width 0.1s linear;
}

/* ==================== 模块1：固定深色顶部导航栏 ==================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 33, 55, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: background var(--transition-normal), box-shadow var(--transition-normal);
}

.site-header.scrolled {
    background: rgba(9, 24, 41, 0.97);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.25);
    border-bottom-color: rgba(196, 30, 36, 0.3);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

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

.header-logo-text {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 2px;
    white-space: nowrap;
}

/* PC端导航 */
.main-nav {
    display: flex;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav-link {
    display: block;
    padding: 8px 16px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    font-weight: 400;
    letter-spacing: 0.5px;
    position: relative;
    transition: color var(--transition-fast);
    white-space: nowrap;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 2px;
    background: var(--red-primary);
    transition: transform var(--transition-normal);
    border-radius: 1px;
}

.nav-link:hover,
.nav-link.active {
    color: #fff;
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-link.active {
    color: var(--red-light);
}

/* 汉堡菜单按钮 */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    cursor: pointer;
    gap: 5px;
    padding: 10px;
    transition: background var(--transition-fast), border-color var(--transition-fast);
}

.hamburger-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.4);
}

.hamburger-btn .bar {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform var(--transition-normal), opacity var(--transition-fast);
}

.hamburger-btn.active .bar-top {
    transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.active .bar-mid {
    opacity: 0;
}

.hamburger-btn.active .bar-bot {
    transform: translateY(-7px) rotate(-45deg);
}

/* 移动端导航覆盖层 */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(9, 24, 41, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-nav-overlay.open {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-header {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-nav-title {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.mobile-nav-close {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast);
}

.mobile-nav-close:hover {
    background: rgba(255, 255, 255, 0.15);
}

.mobile-nav-list {
    text-align: center;
}

.mobile-nav-list li {
    margin: 8px 0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.mobile-nav-overlay.open .mobile-nav-list li {
    opacity: 1;
    transform: translateY(0);
}

.mobile-nav-overlay.open .mobile-nav-list li:nth-child(1) { transition-delay: 0.05s; }
.mobile-nav-overlay.open .mobile-nav-list li:nth-child(2) { transition-delay: 0.10s; }
.mobile-nav-overlay.open .mobile-nav-list li:nth-child(3) { transition-delay: 0.15s; }
.mobile-nav-overlay.open .mobile-nav-list li:nth-child(4) { transition-delay: 0.20s; }
.mobile-nav-overlay.open .mobile-nav-list li:nth-child(5) { transition-delay: 0.25s; }
.mobile-nav-overlay.open .mobile-nav-list li:nth-child(6) { transition-delay: 0.30s; }
.mobile-nav-overlay.open .mobile-nav-list li:nth-child(7) { transition-delay: 0.35s; }
.mobile-nav-overlay.open .mobile-nav-list li:nth-child(8) { transition-delay: 0.40s; }
.mobile-nav-overlay.open .mobile-nav-list li:nth-child(9) { transition-delay: 0.45s; }
.mobile-nav-overlay.open .mobile-nav-list li:nth-child(10) { transition-delay: 0.50s; }

.mobile-nav-list a {
    display: inline-block;
    padding: 12px 30px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 20px;
    font-weight: 400;
    letter-spacing: 2px;
    position: relative;
    transition: color var(--transition-fast);
}

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

/* ==================== 模块2：Banner幻灯片 ==================== */
.hero-banner {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
}

.hero-swiper {
    width: 100%;
    height: 100%;
}

.hero-swiper .swiper-slide {
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
}

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

.hero-overlay-red {
    background: linear-gradient(to right, rgba(196, 30, 36, 0.75) 0%, rgba(13, 33, 55, 0.65) 70%, rgba(9, 24, 41, 0.85) 100%);
}

.hero-overlay-blue {
    background: linear-gradient(to right, rgba(27, 58, 92, 0.75) 0%, rgba(13, 33, 55, 0.65) 70%, rgba(9, 24, 41, 0.85) 100%);
}

.hero-overlay-mixed {
    background: linear-gradient(135deg, rgba(196, 30, 36, 0.7) 0%, rgba(27, 58, 92, 0.6) 50%, rgba(9, 24, 41, 0.85) 100%);
}

.slide-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    padding: 0 20px;
}

.slide-title {
    font-size: 52px;
    font-weight: 700;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: 3px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.8s ease both;
}

.slide-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    margin-bottom: 30px;
    animation: fadeInUp 0.8s ease 0.15s both;
}

.slide-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    background: var(--red-gradient);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
    animation: fadeInUp 0.8s ease 0.3s both;
}

.slide-btn:hover {
    background: transparent;
    border-color: #fff;
    transform: translateY(-2px);
}

.slide-btn i {
    transition: transform var(--transition-fast);
}

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

/* Swiper 箭头样式 */
.hero-banner .swiper-button-prev,
.hero-banner .swiper-button-next {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-round);
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.hero-banner .swiper-button-prev:hover,
.hero-banner .swiper-button-next:hover {
    background: var(--red-primary);
    border-color: var(--red-primary);
}

.hero-banner .swiper-button-prev::after,
.hero-banner .swiper-button-next::after {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
}

/* 分页器 */
.hero-banner .swiper-pagination {
    bottom: 30px;
}

.hero-banner .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.4);
    opacity: 1;
    margin: 0 6px;
    border-radius: 6px;
    transition: width var(--transition-normal), background var(--transition-fast);
}

.hero-banner .swiper-pagination-bullet-active {
    width: 36px;
    background: var(--red-primary);
}

/* ==================== 模块通用样式 ==================== */
.section {
    padding: var(--section-py) 0;
    position: relative;
}

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

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 2px;
    margin-bottom: 16px;
    position: relative;
}

.section-title-light {
    color: #fff;
}

.section-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 16px;
}

.divider-line {
    width: 60px;
    height: 2px;
    background: var(--red-primary);
    border-radius: 1px;
}

.line-light {
    background: rgba(255, 255, 255, 0.5);
}

.divider-dot {
    width: 32px;
    height: 32px;
    background: var(--red-gradient);
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.section-subtitle-light {
    color: rgba(255, 255, 255, 0.75);
}

/* 按钮通用 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    font-family: var(--font-family);
    font-size: 15px;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--red-gradient);
    color: #fff;
    box-shadow: var(--shadow-red);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(196, 30, 36, 0.35);
}

.btn-primary i {
    transition: transform var(--transition-fast);
}

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

.btn-lg {
    padding: 16px 44px;
    font-size: 17px;
}

/* ==================== 模块3：集团简介 ==================== */
.section-about {
    background: var(--bg-white);
}

.about-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-heading {
    font-size: 24px;
    font-weight: 700;
    color: var(--red-primary);
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.about-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 2;
    margin-bottom: 16px;
    text-indent: 2em;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 24px 0;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.about-feature i {
    color: var(--red-primary);
    font-size: 16px;
}

.about-stats {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 40px;
    border: 1px solid var(--gray-200);
    border-top: 4px solid var(--red-primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xs);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    background: var(--red-bg);
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    color: var(--red-primary);
    font-size: 20px;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--blue-primary);
    line-height: 1.2;
}

.stat-unit {
    font-size: 20px;
    font-weight: 400;
    color: var(--red-primary);
    margin-left: 2px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ==================== 模块4：数据可视化看板 ==================== */
.section-data {
    background: var(--bg-light);
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
}

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

.data-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-xs);
    border: 1px solid var(--gray-200);
    border-bottom: 3px solid var(--red-primary);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.data-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.data-card canvas {
    margin: 0 auto 16px;
    display: block;
}

.data-card-info h4 {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 400;
}

.data-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--red-primary);
}

/* ==================== 模块5：核心业务概览 ==================== */
.section-business {
    background: var(--bg-white);
}

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

.business-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xs);
    border: 1px solid var(--gray-200);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.business-img {
    height: 200px;
    background: linear-gradient(135deg, #C41E24 0%, #8B1518 35%, #1B3A5C 70%, #2D5A87 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.business-svg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 1;
}

.business-icon {
    width: 60px;
    height: 60px;
    background: var(--red-gradient);
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    box-shadow: 0 4px 20px rgba(196, 30, 36, 0.3);
    transition: transform var(--transition-fast);
    position: relative;
    z-index: 2;
}

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

.business-label {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    color: rgba(255, 255, 255, 0.9);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 1px;
    z-index: 2;
    transition: all var(--transition-fast);
}

.business-card:hover .business-label {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.3);
}

.business-info {
    padding: 24px;
}

.business-info h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--blue-primary);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.business-info p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.business-link {
    color: var(--red-primary);
    font-size: 14px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--transition-fast);
}

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

/* ==================== 模块6：旗下子公司 ==================== */
.section-subsidiary {
    background: var(--bg-light);
}

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

.subsidiary-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xs);
    border: 1px solid var(--gray-200);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.subsidiary-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.subsidiary-img {
    height: 180px;
    background: linear-gradient(135deg, #C41E24 0%, #8B1518 35%, #1B3A5C 70%, #2D5A87 100%);
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.subsidiary-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.8;
    pointer-events: none;
}

.subsidiary-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.subsidiary-rank {
    position: absolute;
    top: 12px;
    left: 12px;
    width: 36px;
    height: 36px;
    background: var(--red-gradient);
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    z-index: 10;
}

.subsidiary-info {
    padding: 20px;
}

.subsidiary-info h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--blue-primary);
    margin-bottom: 8px;
}

.subsidiary-info p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
}

.subsidiary-link {
    color: var(--red-primary);
    font-size: 13px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--transition-fast);
}

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

/* ==================== 模块7：党建文化 ==================== */
.section-party {
    background: var(--red-gradient);
    position: relative;
    overflow: hidden;
}

.party-bg-overlay {
    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 0 100 100"><text y="80" font-size="80" opacity="0.04" fill="white">★</text></svg>') repeat;
    background-size: 100px 100px;
    opacity: 0.3;
}

.party-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 50px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.party-image {
    height: 400px;
    background-size: cover;
    background-position: center;
    border-radius: var(--radius-lg);
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    border: 4px solid rgba(255, 255, 255, 0.2);
}

.party-image-tag {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 8px 20px;
    background: var(--red-primary);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    border-radius: var(--radius-sm);
    letter-spacing: 1px;
}

.party-title {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.party-title i {
    color: #FFD700;
}

.party-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 2;
    margin-bottom: 30px;
    text-indent: 2em;
}

.party-honors {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.party-honor-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    transition: background var(--transition-fast), transform var(--transition-fast);
}

.party-honor-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(6px);
}

.party-honor-icon {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFD700;
    font-size: 20px;
    flex-shrink: 0;
}

.party-honor-text h4 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 2px;
}

.party-honor-text p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
}

/* ==================== 模块8：荣誉资质 ==================== */
.section-honor {
    background: var(--bg-white);
}

.honor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.honor-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xs);
    border: 1px solid var(--gray-200);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.honor-img-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3/4;
}

.honor-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.honor-card:hover .honor-img {
    transform: scale(1.08);
}

.honor-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(196, 30, 36, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 28px;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.honor-card:hover .honor-overlay {
    opacity: 1;
}

.honor-info {
    padding: 16px;
    text-align: center;
}

.honor-info h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--blue-primary);
    margin-bottom: 4px;
}

.honor-date {
    font-size: 13px;
    color: var(--text-muted);
}

.honor-more {
    text-align: center;
    margin-top: 40px;
}

/* ==================== 模块9：新闻动态 ==================== */
.section-news {
    background: var(--bg-light);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.news-item {
    display: flex;
    gap: 30px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xs);
    border: 1px solid var(--gray-200);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.news-img {
    width: 280px;
    min-height: 200px;
    flex-shrink: 0;
    background: linear-gradient(135deg, #C41E24 0%, #8B1518 35%, #1B3A5C 70%, #2D5A87 100%);
    background-size: cover;
    background-position: center;
    transition: transform var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.news-svg-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.news-img-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 2px;
    z-index: 2;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

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

.news-content {
    padding: 24px 24px 24px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 10px;
    font-size: 13px;
    color: var(--text-muted);
}

.news-meta i {
    margin-right: 4px;
}

.news-category {
    color: var(--red-primary);
}

.news-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--blue-primary);
    margin-bottom: 10px;
    transition: color var(--transition-fast);
    line-height: 1.4;
}

.news-item:hover .news-title {
    color: var(--red-primary);
}

.news-summary {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.news-link {
    color: var(--red-primary);
    font-size: 14px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--transition-fast);
}

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

.news-more {
    text-align: center;
    margin-top: 40px;
}

/* ==================== 模块10：项目案例 ==================== */
.section-cases {
    background: var(--bg-white);
}

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

.case-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xs);
    border: 1px solid var(--gray-200);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.case-img {
    height: 300px;
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.case-gradient-bg {
    background: linear-gradient(135deg, #C41E24 0%, #8B1518 35%, #1B3A5C 70%, #2D5A87 100%);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.case-svg-decoration {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0.6;
    animation: floatSvg 6s ease-in-out infinite;
}

@keyframes floatSvg {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.case-frosted-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 12px 32px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-md);
    color: rgba(255, 255, 255, 0.95);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    z-index: 1;
    transition: all var(--transition-normal);
}

.case-card:hover .case-frosted-text {
    transform: translate(-50%, -50%) scale(1.05);
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(9, 24, 41, 0.9) 0%, rgba(9, 24, 41, 0.2) 50%, transparent 100%);
    display: flex;
    align-items: flex-end;
    padding: 30px;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.case-card:hover .case-overlay {
    opacity: 1;
}

.case-overlay-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
}

.case-overlay-content p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 12px;
}

.case-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--red-light);
    font-size: 14px;
    font-weight: 700;
}

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

.case-info {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.case-tag {
    padding: 4px 12px;
    background: var(--red-bg);
    color: var(--red-primary);
    font-size: 12px;
    font-weight: 700;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.case-info h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--blue-primary);
}

.cases-more {
    text-align: center;
    margin-top: 40px;
}

/* ==================== 模块11：人才招聘 ==================== */
.section-recruit {
    background: var(--bg-light);
}

.recruit-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 400px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #C41E24 0%, #8B1518 50%, #1B3A5C 100%);
}

.recruit-wrapper::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 0 100 100"><text y="80" font-size="80" opacity="0.04" fill="white">★</text></svg>') repeat;
    background-size: 100px 100px;
    opacity: 0.3;
    z-index: 0;
}

.recruit-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: 0;
}

.recruit-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 60px 40px;
    width: 100%;
}

.recruit-icon {
    width: 72px;
    height: 72px;
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: #fff;
    font-size: 32px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
}

.recruit-title {
    font-size: 40px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 4px;
    text-shadow: 0 2px 15px rgba(0, 0, 0, 0.4), 0 4px 25px rgba(0, 0, 0, 0.3);
}

.recruit-desc {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 24px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
    line-height: 1.8;
}

.recruit-benefits {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.recruit-benefits span {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.95);
    font-size: 16px;
    font-weight: 500;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}

.recruit-benefits i {
    color: #FFD700;
}

/* ==================== 模块12：联系我们 ==================== */
.section-contact {
    background: var(--bg-white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    border-left: 4px solid var(--red-primary);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-card:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-sm);
}

.contact-card-icon {
    width: 44px;
    height: 44px;
    background: var(--red-gradient);
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    flex-shrink: 0;
}

.contact-card-text h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--blue-primary);
    margin-bottom: 4px;
}

.contact-card-text p,
.contact-card-text a {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-card-text a:hover {
    color: var(--red-primary);
}

.contact-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    min-height: 300px;
    position: relative;
}

.contact-map-placeholder {
    width: 100%;
    height: 100%;
    min-height: 300px;
    background: var(--red-gradient);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.contact-map-placeholder::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 0 100 100"><text y="80" font-size="80" opacity="0.05" fill="white">★</text></svg>') repeat;
    background-size: 80px 80px;
    opacity: 0.4;
}

.contact-map-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.15);
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: #fff;
    font-size: 36px;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    }
}

.contact-map-title {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: 2px;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.contact-map-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.9);
    position: relative;
    z-index: 1;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.15);
}

/* ==================== 模块13：底部区域 ==================== */
.site-footer {
    background: var(--bg-footer);
    color: rgba(255, 255, 255, 0.85);
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(196, 30, 36, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(27, 58, 92, 0.08) 0%, transparent 50%),
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 20px,
            rgba(255, 255, 255, 0.012) 20px,
            rgba(255, 255, 255, 0.012) 21px
        );
    pointer-events: none;
    z-index: 0;
}

.footer-main {
    position: relative;
    z-index: 1;
    padding: 80px 0 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

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

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

.footer-logo-icon {
    width: 40px;
    height: 40px;
    background: var(--red-gradient);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
}

.footer-logo-text {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 2px;
}

.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.9;
    margin-bottom: 20px;
}

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

.social-link {
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 16px;
    transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.social-link:hover {
    background: var(--red-primary);
    color: #fff;
    transform: translateY(-3px);
    border-color: var(--red-primary);
}

.footer-title {
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: 1px;
    position: relative;
    padding-bottom: 12px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--red-primary);
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.65);
    font-size: 14px;
    transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer-links a:hover {
    color: var(--red-light);
    padding-left: 4px;
}

.footer-contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
}

.footer-contact-list i {
    color: var(--red-light);
    margin-top: 4px;
    width: 16px;
    flex-shrink: 0;
}

.footer-contact-list a {
    color: rgba(255, 255, 255, 0.65);
}

.footer-contact-list a:hover {
    color: var(--red-light);
}

.footer-bottom {
    position: relative;
    z-index: 1;
    padding: 24px 0;
    background: rgba(0, 0, 0, 0.2);
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-copyright p,
.footer-motto p,
.footer-tech p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
}

.footer-copyright a,
.footer-tech a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-copyright a:hover,
.footer-tech a:hover {
    color: var(--red-light);
}

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

.footer-motto p {
    color: var(--red-light);
    letter-spacing: 2px;
    font-weight: 700;
}

/* ==================== 回到顶部按钮 ==================== */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 48px;
    height: 48px;
    background: var(--red-gradient);
    color: #fff;
    border: none;
    border-radius: var(--radius-round);
    font-size: 18px;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-normal), box-shadow var(--transition-normal);
    box-shadow: var(--shadow-red);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(196, 30, 36, 0.4);
}

/* ==================== WOW动画覆盖 ==================== */
.wow {
    visibility: hidden;
}

.animate__animated.animate__fadeInUp,
.animate__animated.animate__fadeInLeft,
.animate__animated.animate__fadeInRight {
    visibility: visible;
}

/* ==================== 响应式设计 ==================== */

/* 大屏幕 */
@media (max-width: 1400px) {
    .container {
        padding: 0 30px;
    }
}

/* 平板及以下 */
@media (max-width: 1200px) {
    .nav-link {
        padding: 8px 12px;
        font-size: 14px;
    }

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

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

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 992px) {
    :root {
        --section-py: 80px;
    }

    .site-header {
        background: rgba(9, 24, 41, 0.95);
    }

    .main-nav {
        display: none;
    }

    .hamburger-btn {
        display: flex;
    }

    .hero-banner {
        height: 500px;
    }

    .slide-title {
        font-size: 40px;
    }

    .about-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .party-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .party-image {
        height: 300px;
    }

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

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

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

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

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

/* 手机端 */
@media (max-width: 768px) {
    :root {
        --section-py: 50px;
    }

    .contact-map-placeholder {
        min-height: 260px;
        padding: 30px 20px;
    }

    .contact-map-icon {
        width: 64px;
        height: 64px;
        font-size: 28px;
        margin-bottom: 16px;
    }

    .contact-map-title {
        font-size: 20px;
        letter-spacing: 1px;
    }

    .contact-map-desc {
        font-size: 14px;
    }

    .container {
        padding: 0 16px;
    }

    .header-inner {
        height: 64px;
    }

    .header-logo img {
        height: 34px;
    }

    .header-logo-text {
        font-size: 14px;
    }

    .hero-banner {
        height: 400px;
    }

    .slide-title {
        font-size: 30px;
        letter-spacing: 1px;
    }

    .slide-desc {
        font-size: 15px;
    }

    .slide-btn {
        padding: 12px 28px;
        font-size: 14px;
    }

    .hero-banner .swiper-button-prev,
    .hero-banner .swiper-button-next {
        width: 40px;
        height: 40px;
    }

    .hero-banner .swiper-button-prev::after,
    .hero-banner .swiper-button-next::after {
        font-size: 14px;
    }

    .section-title {
        font-size: 28px;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .divider-line {
        width: 40px;
    }

    /* 集团简介移动端 */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .about-stats {
        padding: 24px;
    }

    .stat-number {
        font-size: 26px;
    }

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

    /* 数据看板移动端 */
    .data-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .data-card {
        padding: 20px;
    }

    .data-card canvas {
        width: 140px;
        height: 140px;
    }

    /* 核心业务移动端 */
    .business-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* 子公司移动端 */
    .subsidiary-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* 荣誉移动端 */
    .honor-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    /* 新闻移动端 */
    .news-item {
        flex-direction: column;
    }

    .news-img {
        width: 100%;
        height: 200px;
    }
    
    .news-svg-decoration {
        width: 100%;
        height: 100%;
    }
    
    .news-img-text {
        font-size: 14px;
        padding: 10px 20px;
    }

    .news-content {
        padding: 20px;
    }

    .news-title {
        font-size: 17px;
    }

    /* 案例移动端 */
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .case-img {
        height: 240px;
    }

    .case-frosted-text {
        font-size: 14px;
        padding: 10px 24px;
        letter-spacing: 1.5px;
    }

    /* 招聘移动端 */
    .recruit-title {
        font-size: 28px;
        letter-spacing: 3px;
    }

    .recruit-desc {
        font-size: 15px;
    }

    .recruit-benefit-item span {
        font-size: 14px;
    }

    .recruit-benefits {
        gap: 16px;
    }

    .recruit-content {
        padding: 40px 20px;
    }

    /* 底部移动端 */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-main {
        padding: 50px 0 40px;
    }

    .footer-bottom-inner {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }

    .back-to-top {
        bottom: 24px;
        right: 24px;
        width: 42px;
        height: 42px;
        font-size: 16px;
    }

    .mobile-nav-overlay.open .mobile-nav-list li {
        margin: 4px 0;
    }

    .mobile-nav-list a {
        font-size: 17px;
        padding: 10px 24px;
    }
}

/* 小手机 */
@media (max-width: 480px) {
    .hero-banner {
        height: 350px;
    }

    .slide-title {
        font-size: 24px;
    }

    .slide-desc {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .slide-btn {
        padding: 10px 22px;
        font-size: 13px;
    }

    .data-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .data-card canvas {
        width: 120px;
        height: 120px;
    }

    .stats-grid {
        gap: 12px;
    }

    .stat-item {
        padding: 16px;
    }

    .stat-number {
        font-size: 22px;
    }

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

/* ==================== 动画关键帧 ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* ===== 无图片占位样式 ===== */
.placeholder-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-size: 18px;
    font-weight: 700;
    text-align: center;
    font-family: var(--font-family);
    letter-spacing: 2px;
}

.placeholder-image.placeholder-demo {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.placeholder-image.placeholder-case {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.placeholder-image.placeholder-honor {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

/* 业务图片占位 */
.business-img .placeholder-image,
.subsidiary-img .placeholder-image,
.case-img .placeholder-image,
.news-img .placeholder-image,
.recruit-bg .placeholder-image,
.contact-map .placeholder-image,
.about-stats .placeholder-image,
.data-card .placeholder-image {
    position: absolute;
    top: 0;
    left: 0;
}

/* 荣誉图片占位 */
.honor-img-wrap .placeholder-image {
    aspect-ratio: 3/4;
}

/* 横幅图片占位 */
.hero-banner .swiper-slide .placeholder-image {
    height: 600px;
}