/* ===== 合肥站样式表 - 智影·全景通 ===== */

:root {
    /* 配色 */
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #3b82f6;
    --color-secondary: #10b981;
    --color-secondary-dark: #059669;
    --color-accent: #f59e0b;
    --color-accent-dark: #d97706;
    --color-bg: #f8fafc;
    --color-bg-white: #ffffff;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-border: #e2e8f0;
    --color-shadow: rgba(15, 23, 42, 0.08);

    /* 间距 */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 24px;
    --space-lg: 48px;
    --space-xl: 80px;
    --space-2xl: 120px;

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;

    /* 容器 */
    --container-max: 1200px;
    --container-padding: 24px;

    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 10px 40px rgba(15, 23, 42, 0.10);
    --shadow-xl: 0 20px 50px rgba(15, 23, 42, 0.15);
}

/* ===== 通用工具类 ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
}

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

.text-primary {
    color: var(--color-primary);
}

/* ===== 重置与基础 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--color-text);
    line-height: 1.6;
    background: var(--color-bg);
}

a {
    text-decoration: none;
    color: inherit;
}

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

ul {
    list-style: none;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    gap: 8px;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline:hover {
    background: #fff;
    color: var(--color-primary);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 16px;
}

.btn-secondary {
    background: var(--color-secondary);
    color: #fff;
    border-color: var(--color-secondary);
}

.btn-secondary:hover {
    background: var(--color-secondary-dark);
    border-color: var(--color-secondary-dark);
}

/* ===== 导航栏 ===== */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

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

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

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text);
}

.logo-text span {
    color: var(--color-primary);
}

.nav-contact {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 15px;
    padding: 10px 20px;
    background: rgba(37, 99, 235, 0.08);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-contact:hover {
    background: rgba(37, 99, 235, 0.15);
}

.nav-contact svg {
    width: 18px;
    height: 18px;
}

/* ===== Hero 区域 ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/hefei-hero.jpg') center center / cover no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(30, 41, 59, 0.85) 0%,
        rgba(37, 99, 235, 0.7) 50%,
        rgba(16, 185, 129, 0.6) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: #fff;
    padding: 0 var(--container-padding);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    margin-bottom: var(--space-md);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: var(--space-sm);
    line-height: 1.2;
}

.hero-title .highlight {
    color: var(--color-accent);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    opacity: 0.95;
}

.hero-desc {
    font-size: 1.1rem;
    opacity: 0.85;
    margin-bottom: var(--space-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
    animation: bounce 2s infinite;
}

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

.arrow-down {
    width: 24px;
    height: 24px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
}

/* ===== 数据统计 ===== */
.stats {
    background: var(--color-bg-white);
    padding: var(--space-xl) 0;
    margin-top: -1px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.stat-item {
    text-align: center;
    padding: var(--space-md);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 15px;
    color: var(--color-text-light);
}

/* ===== 案例展示 ===== */
.cases {
    padding: var(--space-2xl) 0;
    background: var(--color-bg);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}

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

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.case-card {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
}

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

.case-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.case-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../img/cases/case-bg.svg') center / 100px repeat;
    opacity: 0.1;
}

.case-vr-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 28px;
    transition: var(--transition);
}

.case-card:hover .case-vr-icon {
    transform: scale(1.1);
    background: rgba(255, 255, 255, 0.3);
}

.case-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--color-secondary);
    color: #fff;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
}

.case-body {
    padding: var(--space-md);
}

.case-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px;
}

.case-location {
    font-size: 13px;
    color: var(--color-text-light);
    margin-bottom: var(--space-xs);
    display: flex;
    align-items: center;
    gap: 4px;
}

.case-desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
}

.case-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 600;
    margin-top: var(--space-sm);
    transition: var(--transition);
}

.case-link:hover {
    gap: 8px;
}

.cases-more {
    text-align: center;
    margin-top: var(--space-lg);
}

/* ===== 服务行业 ===== */
.industries {
    padding: var(--space-2xl) 0;
    background: var(--color-bg-white);
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-md);
}

.industry-card {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: var(--space-lg) var(--space-md);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.industry-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.industry-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-sm);
    font-size: 28px;
}

.industry-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

/* ===== 为什么选择 ===== */
.why-us {
    padding: var(--space-2xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #fff;
}

.why-us .section-badge {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.why-us .section-title {
    color: #fff;
}

.why-us .section-desc {
    color: rgba(255, 255, 255, 0.8);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.why-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    transition: var(--transition);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.why-icon {
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-sm);
    font-size: 24px;
}

.why-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.why-desc {
    font-size: 14px;
    opacity: 0.85;
    line-height: 1.6;
}

/* ===== 咨询 CTA ===== */
.cta {
    padding: var(--space-2xl) 0;
    background: var(--color-bg);
    text-align: center;
}

.cta-phone {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-primary);
    margin: var(--space-md) 0;
}

.cta-phone a {
    color: inherit;
}

.cta-hours {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: var(--space-lg);
}

.cta-wechat {
    margin: var(--space-md) auto;
    text-align: center;
}

.wechat-qr {
    width: 150px;
    height: 150px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.wechat-qr:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.wechat-tip {
    font-size: 14px;
    color: var(--color-text-light);
    margin-top: var(--space-xs);
}

.cta-buttons {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn-primary {
    background: var(--color-primary);
}

.cta-buttons .btn-outline-primary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.cta-buttons .btn-outline-primary:hover {
    background: var(--color-primary);
    color: #fff;
}

/* ===== Footer ===== */
.footer {
    background: var(--color-text);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--space-lg) 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.footer-logo img {
    height: 36px;
}

.footer-logo span {
    font-size: 1.2rem;
    font-weight: 700;
    color: #fff;
}

.footer-links {
    display: flex;
    gap: var(--space-md);
    font-size: 14px;
}

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

.footer-record {
    font-size: 13px;
    opacity: 0.7;
}

/* ===== 联系表单弹窗 ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--space-md);
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--space-lg);
    position: relative;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--color-bg);
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    color: var(--color-text-light);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--color-border);
    color: var(--color-text);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-md);
}

.form-group {
    margin-bottom: var(--space-sm);
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 15px;
    transition: var(--transition);
    font-family: inherit;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-submit {
    width: 100%;
    margin-top: var(--space-sm);
}

.form-note {
    font-size: 12px;
    color: var(--color-text-light);
    text-align: center;
    margin-top: var(--space-sm);
}

/* ===== 动画 ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.8rem;
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .industries-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-contact span {
        display: none;
    }
    
    .hero {
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-desc {
        font-size: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-phone {
        font-size: 2.2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-sm);
    }
    
    .industry-card {
        padding: var(--space-md) var(--space-sm);
    }
    
    .industry-icon {
        width: 48px;
        height: 48px;
        font-size: 22px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 280px;
    }
}