/* 卓云智达供应链官网 - 升级版样式（参考南冠物流设计风格）*/

/* 导入Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

/* ==================== CSS变量定义 ==================== */
:root {
    --primary: #1a5f9e;      /* 主蓝色 */
    --primary-dark: #0d2b45; /* 深蓝色 */
    --primary-light: #e8ecf1; /* 浅蓝灰 */
    --accent: #f0a500;       /* 金色强调色 */
    --accent-light: #ffd700;   /* 亮金色 */
    --white: #ffffff;
    --light: #f8f9fa;
    --gray: #6c757d;
    --dark: #212529;
    --success: #28a745;
    --card-shadow: 0 5px 20px rgba(0,0,0,0.08);
    --hover-shadow: 0 15px 40px rgba(26,95,158,0.2);
    --gradient-primary: linear-gradient(135deg, #1a5f9e 0%, #0d2b45 100%);
    --gradient-accent: linear-gradient(135deg, #f0a500 0%, #ffd700 100%);
}

/* ==================== 基础样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--dark);
    line-height: 1.6;
    background: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
}

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

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

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

.nav-logo img {
    height: 45px;
    width: auto;
}

.nav-logo span {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-dark);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-menu a {
    font-size: 15px;
    font-weight: 500;
    color: var(--dark);
    padding: 8px 0;
    position: relative;
}

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

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

.nav-menu a:hover {
    color: var(--primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--dark);
    transition: all 0.3s ease;
}

/* ==================== Hero区（首页大图） ==================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    margin-top: 75px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/tianfu-airport-3.webp') center/cover no-repeat;
    opacity: 0.15;
    will-change: transform;
}

@keyframes heroZoom {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    max-width: 800px;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

.hero-badge {
    display: inline-block;
    background: rgba(255,215,0,0.2);
    border: 1px solid var(--accent);
    color: var(--accent-light);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.hero h1 {
    font-size: 46px;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.hero h1 span {
    color: var(--accent-light);
}

.hero p {
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--primary-dark);
    box-shadow: 0 4px 15px rgba(240,165,0,0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(240,165,0,0.4);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.5);
}

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

/* ==================== 数据展示区（参考南冠） ==================== */
.stats-section {
    background: var(--white);
    padding: 80px 0;
    position: relative;
}

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

.stat-item {
    text-align: center;
    padding: 40px 20px;
    background: var(--light);
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.stat-item:hover::before {
    transform: scaleX(1);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    font-family: 'Arial', sans-serif;
}

.stat-label {
    font-size: 16px;
    color: var(--gray);
    font-weight: 500;
}

/* ==================== 通用区块样式 ==================== */
.section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    background: rgba(26,95,158,0.1);
    color: var(--primary);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-desc {
    font-size: 16px;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ==================== 业务卡片（带图片，参考南冠） ==================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    position: relative;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--hover-shadow);
}

.service-card-img {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.service-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.service-card:hover .service-card-img img {
    transform: scale(1.1);
}

.service-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 50%, rgba(13,43,69,0.8));
}

.service-card-content {
    padding: 30px;
}

.service-card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: -60px;
    margin-bottom: 20px;
    position: relative;
    z-index: 2;
    box-shadow: 0 4px 15px rgba(26,95,158,0.3);
}

.service-card-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--white);
}

.service-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
}

.service-card-link:hover {
    gap: 12px;
    color: var(--accent);
}

/* ==================== 核心优势（6大理由，3+3排列） ==================== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--hover-shadow);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: var(--light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    transition: all 0.3s ease;
}

.advantage-card:hover .advantage-icon {
    background: var(--gradient-primary);
}

.advantage-icon svg {
    width: 36px;
    height: 36px;
    fill: var(--primary);
    transition: all 0.3s ease;
}

.advantage-card:hover .advantage-icon svg {
    fill: var(--white);
}

.advantage-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.advantage-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

/* ==================== 关于我们页面样式 ==================== */
.page-hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    padding: 140px 0 80px;
    color: var(--white);
    text-align: center;
}

.page-hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.page-hero p {
    font-size: 18px;
    opacity: 0.9;
}

/* ==================== 半导体&精密仪器专题板块 ==================== */
.specialty-section {
    padding: 100px 0;
    background: linear-gradient(160deg, #0a1628 0%, #0d2b45 40%, #132742 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.specialty-section::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(240,165,0,0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.specialty-section::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(45,138,212,0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.specialty-section .section-tag {
    background: rgba(240,165,0,0.15);
    color: var(--accent-light);
}

.specialty-section .section-title {
    color: var(--white);
}

.specialty-section .section-desc {
    color: rgba(255,255,255,0.7);
}

.specialty-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    position: relative;
    z-index: 1;
}

.specialty-card {
    background: rgba(255,255,255,0.04);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
}

.specialty-card:hover {
    transform: translateY(-8px);
    border-color: rgba(240,165,0,0.3);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3), 0 0 30px rgba(240,165,0,0.05);
}

.specialty-card-img {
    height: 260px;
    overflow: hidden;
    position: relative;
}

.specialty-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.specialty-card-img::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60%;
    background: linear-gradient(to top, rgba(10,22,40,0.95) 0%, transparent 100%);
    pointer-events: none;
}

.specialty-card-tag {
    position: absolute;
    top: 20px;
    left: 20px;
    background: linear-gradient(135deg, var(--accent), #ffd700);
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 18px;
    border-radius: 6px;
    letter-spacing: 1px;
    z-index: 2;
}

.specialty-card-body {
    padding: 30px 35px 40px;
}

.specialty-card-body h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--white);
}

.specialty-card-body .specialty-subtitle {
    font-size: 14px;
    color: var(--accent-light);
    margin-bottom: 24px;
    font-weight: 500;
    letter-spacing: 1px;
}

.specialty-points {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-bottom: 24px;
}

.specialty-point {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: rgba(255,255,255,0.85);
    line-height: 1.6;
}

.specialty-point-icon {
    width: 28px;
    height: 28px;
    background: rgba(240,165,0,0.15);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.specialty-point-icon svg {
    width: 14px;
    height: 14px;
    fill: var(--accent-light);
}

.specialty-highlight {
    background: linear-gradient(135deg, rgba(240,165,0,0.1) 0%, rgba(45,138,212,0.1) 100%);
    border-left: 3px solid var(--accent);
    padding: 16px 20px;
    border-radius: 0 10px 10px 0;
}

.specialty-highlight p {
    font-size: 14px;
    color: rgba(255,255,255,0.9);
    line-height: 1.7;
    margin: 0;
}

.specialty-highlight strong {
    color: var(--accent-light);
}

/* ==================== 三大物流枢纽板块 ==================== */
.hubs-section {
    padding: 100px 0;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.hubs-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(26,95,158,0.04) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(150px, -150px);
    pointer-events: none;
}

.hubs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.hub-card {
    background: var(--white);
    border-radius: 16px;
    padding: 40px 30px;
    box-shadow: var(--card-shadow);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.04);
}

.hub-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.hub-card:hover::after {
    transform: scaleX(1);
}

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

.hub-card.featured {
    border: 2px solid var(--accent);
}

.hub-icon-wrap {
    width: 70px;
    height: 70px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: all 0.3s ease;
}

.hub-card:nth-child(1) .hub-icon-wrap {
    background: linear-gradient(135deg, #1a5f9e 0%, #2d8ad4 100%);
}

.hub-card:nth-child(2) .hub-icon-wrap {
    background: linear-gradient(135deg, #0d2b45 0%, #1a5f9e 100%);
}

.hub-card:nth-child(3) .hub-icon-wrap {
    background: linear-gradient(135deg, #2d8ad4 0%, #5ba4e6 100%);
}

.hub-icon-wrap svg {
    width: 32px;
    height: 32px;
    fill: var(--white);
}

.hub-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 4px;
}

.hub-subtitle {
    font-size: 13px;
    color: var(--gray);
    margin-bottom: 20px;
    font-weight: 500;
}

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

.hub-features li {
    position: relative;
    padding: 6px 0 6px 24px;
    font-size: 14px;
    color: var(--dark);
    line-height: 1.7;
}

.hub-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
}

.hub-value-box {
    background: linear-gradient(135deg, rgba(26,95,158,0.05) 0%, rgba(45,138,212,0.08) 100%);
    border-left: 3px solid var(--primary);
    padding: 14px 18px;
    border-radius: 0 8px 8px 0;
    font-size: 13px;
    color: var(--primary-dark);
    line-height: 1.7;
    font-weight: 500;
}

.hub-value-box strong {
    color: var(--primary);
}

/* 协同价值摘要条 */
.hub-synergy {
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 16px;
    padding: 40px 50px;
    display: flex;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.hub-synergy-icon {
    width: 80px;
    height: 80px;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.hub-synergy-icon svg {
    width: 36px;
    height: 36px;
    fill: var(--accent-light);
}

.hub-synergy-text h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.hub-synergy-text p {
    font-size: 15px;
    opacity: 0.9;
    line-height: 1.8;
}

/* Hub Card Image */
.hub-image {
    position: relative;
    width: 100%;
    height: 180px;
    overflow: hidden;
    border-radius: 10px 10px 0 0;
    margin: -30px -30px 20px -30px;
}

.hub-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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


/* 品牌内涵（4字解读） */
.brand-values {
    padding: 100px 0;
    background: var(--light);
}

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

.value-card {
    background: var(--white);
    padding: 50px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.value-card:hover * {
    color: var(--white) !important;
}

.value-card:hover .value-icon {
    background: rgba(255,255,255,0.2) !important;
}

.value-icon {
    width: 80px;
    height: 80px;
    background: rgba(26,95,158,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.value-icon svg {
    width: 36px;
    height: 36px;
    fill: var(--primary);
    transition: all 0.3s ease;
}

.value-card h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    position: relative;
    z-index: 2;
}

.value-card .value-subtitle {
    font-size: 16px;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 16px;
    position: relative;
    z-index: 2;
}

.value-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.8;
    position: relative;
    z-index: 2;
    transition: color 0.3s ease;
}

/* ==================== 联系我们页面 ==================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info-card {
    background: var(--light);
    padding: 40px;
    border-radius: 12px;
    margin-bottom: 30px;
}

.contact-info-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    align-items: center;
}

.contact-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 20px;
    height: 20px;
    fill: var(--white);
}

.contact-text h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray);
    margin-bottom: 4px;
}

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

/* 表单样式 */
.contact-form {
    background: var(--white);
    padding: 50px;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.contact-form h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 30px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.3s ease;
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,95,158,0.1);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

/* ==================== 客户案例/Logo墙（参考南冠） ==================== */
.clients-section {
    padding: 80px 0;
    background: var(--light);
}

.clients-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 50px;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.clients-grid:hover {
    opacity: 1;
}

.client-logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray);
    transition: all 0.3s ease;
}

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

/* ==================== Footer ==================== */
.footer {
    background: var(--primary-dark);
    color: var(--white);
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 60px;
    margin-bottom: 50px;
}

.footer-brand img {
    height: 45px;
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.8;
    margin-bottom: 24px;
}

.footer h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 12px;
}

.footer h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--accent);
}

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

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

.footer-links a {
    font-size: 14px;
    opacity: 0.8;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent);
    padding-left: 5px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 14px;
    opacity: 0.85;
    color: rgba(255,255,255,0.9);
}

.footer-contact-item:hover {
    opacity: 1;
    color: var(--white);
}

.footer-contact-icon {
    width: 36px;
    height: 36px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.footer-contact-item:hover .footer-contact-icon {
    background: rgba(255,255,255,0.15);
    border-color: var(--accent);
    box-shadow: 0 0 12px rgba(255,179,0,0.15);
}

.footer-contact-icon svg {
    width: 18px;
    height: 18px;
    fill: var(--accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    text-align: center;
    font-size: 14px;
    opacity: 0.6;
}

/* ==================== 滚动动画 ==================== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s ease;
}

.fade-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.6s ease;
}

.fade-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 992px) {
    .stats-grid,
    .advantages-grid,
    .hubs-grid,
    .specialty-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 34px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 75px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 30px 20px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero h1 {
        font-size: 24px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .stats-grid,
    .services-grid,
    .advantages-grid,
    .values-grid,
    .hubs-grid,
    .specialty-grid {
        grid-template-columns: 1fr;
    }
    
    .specialty-points {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .page-hero h1 {
        font-size: 36px;
    }
}

/* ==================== 新闻中心（参考南冠） ==================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

.news-card-img {
    height: 200px;
    overflow: hidden;
}

.news-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-card:hover .news-card-img img {
    transform: scale(1.1);
}

.news-card-content {
    padding: 24px;
}

.news-card-date {
    font-size: 13px;
    color: var(--gray);
    margin-bottom: 8px;
}

.news-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

/* ==================== FAQ页面（参考南冠） ==================== */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: 12px;
    margin-bottom: 16px;
    box-shadow: var(--card-shadow);
    overflow: hidden;
}

.faq-question {
    padding: 24px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-dark);
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: var(--light);
}

.faq-question svg {
    width: 24px;
    height: 24px;
    fill: var(--primary);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 30px 24px;
    max-height: 500px;
}

.faq-answer p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.8;
}

/* ==================== 百度地图容器 ==================== */
.map-container {
    height: 400px;
    background: var(--light);
    border-radius: 12px;
    overflow: hidden;
    margin-top: 30px;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

#baiduMap {
    width: 100%;
    height: 100%;
}

/* 导航悬浮按钮 */
.map-nav-overlay {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    pointer-events: none;
}

.map-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 24px;
    background: linear-gradient(135deg, #2196F3, #1976D2);
    color: #fff !important;
    text-decoration: none;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    font-family: 'Noto Sans SC', sans-serif;
    box-shadow: 0 4px 16px rgba(33, 150, 243, 0.4);
    pointer-events: auto;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.map-nav-btn svg {
    flex-shrink: 0;
    fill: #fff;
}

.map-nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(33, 150, 243, 0.5);
    background: linear-gradient(135deg, #1976D2, #1565C0);
}

.map-nav-btn:active {
    transform: translateY(0);
}

/* 降级显示（AK未配置时） */
.map-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, #f0f4ff 0%, #e8eaf6 100%);
}

.map-fallback-icon {
    color: var(--primary-light);
    margin-bottom: 16px;
    opacity: 0.6;
}

.map-fallback h4 {
    font-size: 18px;
    color: var(--primary-dark);
    margin: 0 0 8px;
}

.map-fallback p {
    font-size: 14px;
    color: var(--gray);
    margin: 0;
    line-height: 1.6;
}

.map-fallback .map-nav-btn {
    margin-top: 18px;
}

/* 百度地图信息窗口样式覆盖 */
.BMap_bubble_content {
    padding: 0 !important;
}

.BMap_bubble_title {
    display: none !important;
}

/* ==================== 高级动画系统 ==================== */

/* --- 1. 滚动进度条 --- */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, var(--accent) 0%, var(--primary) 100%);
    z-index: 9999;
    transition: width 0.1s linear;
    box-shadow: 0 0 10px rgba(240,165,0,0.5);
}

/* --- 2. Hero区粒子画布 --- */
#heroParticles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* --- 3. Hero文字逐行入场动画 --- */
.hero-badge,
.hero h1,
.hero p,
.hero-buttons {
    opacity: 0;
    transform: translateY(40px);
    animation: heroReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.hero-badges { animation: heroReveal 0.8s 0.1s cubic-bezier(0.16, 1, 0.3, 1) forwards; opacity: 0; transform: translateY(40px); }
.hero h1 { animation-delay: 0.3s; }
.hero p { animation-delay: 0.5s; }
.hero-buttons { animation-delay: 0.7s; }

@keyframes heroReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- 4. 渐变光带流动（Hero底部装饰线） --- */
.hero-flow-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg,
        transparent 0%,
        var(--accent) 25%,
        var(--primary-light) 50%,
        var(--accent) 75%,
        transparent 100%);
    background-size: 200% 100%;
    animation: flowLine 4s linear infinite;
    z-index: 3;
}

@keyframes flowLine {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

/* --- 5. 卡片交错入场（stagger） --- */
.fade-up:nth-child(1) { transition-delay: 0s; }
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }
.fade-up:nth-child(5) { transition-delay: 0.4s; }
.fade-up:nth-child(6) { transition-delay: 0.5s; }

/* --- 6. 标题滑入遮罩动画 --- */
.section-header.fade-up .section-tag {
    overflow: hidden;
}
.section-header.visible .section-tag {
    animation: tagSlide 0.6s 0.1s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.section-header.visible .section-title {
    animation: titleSlide 0.6s 0.2s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.section-header.visible .section-desc {
    animation: descSlide 0.6s 0.3s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes tagSlide {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes titleSlide {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes descSlide {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- 7. 数据区数字发光脉冲 --- */
.stat-number.visible {
    animation: numberGlow 0.6s ease-out;
}
@keyframes numberGlow {
    0% { text-shadow: 0 0 0 rgba(240,165,0,0); }
    50% { text-shadow: 0 0 30px rgba(240,165,0,0.6); }
    100% { text-shadow: 0 0 0 rgba(240,165,0,0); }
}

/* --- 8. 卡片悬浮光效 --- */
.service-card,
.advantage-card,
.hub-card,
.specialty-card {
    position: relative;
}
.service-card::after,
.advantage-card::after,
.specialty-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    z-index: 1;
}
.service-card:hover::after,
.advantage-card:hover::after,
.specialty-card:hover::after {
    opacity: 1;
}

/* --- 9. Section间波浪分割线 --- */
.wave-divider {
    position: relative;
    width: 100%;
    height: 60px;
    overflow: hidden;
    line-height: 0;
}
.wave-divider svg {
    width: 200%;
    height: 100%;
    animation: waveMove 8s linear infinite;
}
@keyframes waveMove {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* --- 10. 图片视差缩放入场 --- */
.service-card-img img,
.hub-image img,
.specialty-card-img img {
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.service-card.visible .service-card-img img,
.hub-card.visible .hub-image img {
    animation: imgReveal 1s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes imgReveal {
    from { transform: scale(1.2); opacity: 0.5; }
    to { transform: scale(1); opacity: 1; }
}

/* --- 11. 悬停时图片缓慢推进 --- */
.service-card:hover .service-card-img img,
.hub-card:hover .hub-image img {
    transform: scale(1.08);
}

/* --- 12. CTA按钮脉冲呼吸 --- */
.btn-primary {
    animation: btnPulse 3s ease-in-out infinite;
}
@keyframes btnPulse {
    0%, 100% { box-shadow: 0 4px 15px rgba(240,165,0,0.3); }
    50% { box-shadow: 0 4px 25px rgba(240,165,0,0.5), 0 0 0 4px rgba(240,165,0,0.1); }
}

/* --- 13. 导航栏入场滑入 --- */
nav {
    animation: navSlideDown 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes navSlideDown {
    from { transform: translateY(-100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* --- 14. Section背景渐变流动 --- */
.stats-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-dark) 100%);
    background-size: 200% 200%;
    animation: gradientShift 12s ease infinite;
}
@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* --- 15. 数据卡片悬停3D效果 --- */
.stat-item {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
}
.stat-item:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}