/* ==========================================================================
   西安志胜机电有限公司 - 官方网站样式表 (style.css)
   ========================================================================== */

/* 1. 设计系统变量与基础重置 (Design System & Reset) */
:root {
    /* 核心色彩体系 - 科技深色风 */
    --bg-primary: #0A0F1D;      /* 极深蓝黑，主底色 */
    --bg-secondary: #121829;    /* 深灰蓝，卡片与二级底色 */
    --bg-tertiary: #1B233D;     /* 较亮灰蓝，悬浮卡片色 */
    
    --accent-blue: #2563EB;     /* 极光蓝，主色调，象征电气与智能化 */
    --accent-blue-rgb: 37, 99, 235;
    --accent-teal: #0D9488;     /* 科技青，二级辅助色，象征精密控制 */
    --accent-teal-rgb: 13, 148, 136;
    --accent-orange: #EA580C;   /* 机械橙，高亮点缀，象征机械动力与热流 */
    --accent-orange-rgb: 234, 88, 12;
    
    --text-primary: #F8FAFC;    /* 接近纯白，主要文字 */
    --text-secondary: #94A3B8;  /* 浅蓝灰，二级描述文字 */
    --text-muted: #64748B;      /* 中蓝灰，页脚或边角文字 */
    --text-dark: #0F172A;       /* 深石板，黑色按钮或浅色区域文本 */
    
    /* 玻璃拟态属性 */
    --glass-bg: rgba(18, 24, 41, 0.75);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(37, 99, 235, 0.4);
    --glass-blur: 16px;
    
    /* 圆角与阴影 */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.7), 0 10px 10px -5px rgba(0, 0, 0, 0.7);
    --shadow-glow-blue: 0 0 25px rgba(37, 99, 235, 0.3);
    --shadow-glow-teal: 0 0 25px rgba(13, 148, 136, 0.3);
    
    /* 过渡动画 */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* 版面限制 */
    --container-max-width: 1280px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    overflow-x: hidden;
    background-color: var(--bg-primary);
}

body {
    font-family: 'Outfit', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

li {
    list-style: none;
}

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

/* 2. 通用网格与排版组件 (Utility Classes & Grid) */
.container {
    width: 100%;
    margin-right: auto;
    margin-left: auto;
    padding-right: 1.5rem;
    padding-left: 1.5rem;
}

@media (min-width: 640px) { .container { max-width: 640px; } }
@media (min-width: 768px) { .container { max-width: 768px; } }
@media (min-width: 1024px) { .container { max-width: 1024px; } }
@media (min-width: 1280px) { .container { max-width: var(--container-max-width); } }

.section-padding {
    padding: 7rem 0;
}

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

.text-gradient {
    background: linear-gradient(135deg, #3B82F6 0%, #0D9488 50%, #EA580C 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.25);
    color: #60A5FA;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
}

.icon-accent { color: #60A5FA; width: 1.1rem; height: 1.1rem; }
.icon-orange { color: var(--accent-orange); }
.icon-blue { color: #3B82F6; }
.icon-teal { color: #0D9488; }
.icon-small { width: 1.1rem; height: 1.1rem; }

.section-header {
    margin-bottom: 4.5rem;
    position: relative;
    z-index: 2;
}

.section-subtitle {
    font-family: 'Outfit', sans-serif;
    font-size: 0.9rem;
    letter-spacing: 0.25em;
    color: var(--accent-blue);
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    display: block;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    position: relative;
}

.header-line {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-blue) 0%, var(--accent-teal) 100%);
    margin: 1.25rem auto 0 auto;
    border-radius: var(--radius-full);
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 1.5rem auto 0 auto;
}

/* 玻璃态面板 */
.glass-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(var(--glass-blur));
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

/* 按钮设计 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.8rem 1.8rem;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, #1D4ED8 100%);
    color: var(--text-primary);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.25);
    position: relative;
    overflow: hidden;
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0; left: -100%; width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: var(--transition-slow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-blue);
}

.btn-primary:hover::after {
    left: 100%;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    border-color: var(--text-secondary);
}

.btn-call {
    background: linear-gradient(135deg, var(--accent-orange) 0%, #C2410C 100%);
    color: var(--text-primary);
    border-radius: var(--radius-full);
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem;
}

.btn-call:hover {
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(234, 88, 12, 0.4);
}

/* 3. 顶部玻璃态导航栏 (Navbar) */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 15, 29, 0.5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(10px);
    height: 80px;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    height: 64px;
    background: rgba(10, 15, 29, 0.9);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-md);
}

.navbar-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1001;
}

.logo-svg {
    width: 42px;
    height: 42px;
}

.logo-border {
    fill: rgba(37, 99, 235, 0.05);
    stroke: var(--accent-blue);
    stroke-width: 4;
    transition: var(--transition-normal);
}

.logo-path-z {
    fill: none;
    stroke: var(--text-primary);
    stroke-width: 7;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.logo-path-s {
    fill: none;
    stroke: var(--accent-orange);
    stroke-width: 6;
    stroke-linecap: round;
}

.logo-dot {
    fill: var(--accent-teal);
    animation: pulse-glow-dot 2s infinite alternate;
}

.logo:hover .logo-border {
    stroke: var(--accent-teal);
    fill: rgba(13, 148, 136, 0.1);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-zh {
    font-size: 1.15rem;
    font-weight: 900;
    letter-spacing: 0.1em;
    color: var(--text-primary);
}

.brand-en {
    font-size: 0.55rem;
    font-family: 'Outfit', sans-serif;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    font-weight: 500;
}

.nav-menu ul {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.5rem 0;
    position: relative;
}

.nav-link span {
    font-family: 'Outfit', sans-serif;
    font-size: 0.55rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    transition: var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

.nav-link:hover span, .nav-link.active span {
    color: var(--accent-blue);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-blue) 0%, var(--accent-teal) 100%);
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 80%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    z-index: 1001;
}

.mobile-toggle .bar {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-normal);
}

/* 4. 首页首屏 (Hero Section) */
.hero-section {
    position: relative;
    min-height: 100vh;
    padding-top: 140px;
    padding-bottom: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

.hero-grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(234, 88, 12, 0.06) 0%, transparent 45%),
        linear-gradient(rgba(10, 15, 29, 0.8) 0%, var(--bg-primary) 100%);
    z-index: 1;
}

.hero-grid-bg::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: 2;
}

.hero-container {
    position: relative;
    z-index: 5;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    max-width: 640px;
}

.hero-section h1 {
    font-size: 3.75rem;
    line-height: 1.2;
    font-weight: 900;
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-section p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1.25rem;
}

.hero-visual {
    position: relative;
}

.image-border-glow {
    position: relative;
    padding: 12px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.2) 0%, rgba(234, 88, 12, 0.1) 100%);
    box-shadow: var(--shadow-lg), 0 0 50px rgba(37, 99, 235, 0.1);
}

.image-border-glow::before {
    content: '';
    position: absolute;
    top: -2px; left: -2px; right: -2px; bottom: -2px;
    border-radius: calc(var(--radius-lg) + 2px);
    background: linear-gradient(135deg, var(--accent-blue) 0%, transparent 60%, var(--accent-orange) 100%);
    z-index: -1;
    opacity: 0.4;
    transition: var(--transition-normal);
}

.image-inner {
    position: relative;
    border-radius: calc(var(--radius-lg) - 6px);
    overflow: hidden;
    aspect-ratio: 4/3;
    background-color: var(--bg-secondary);
}

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

.image-overlay-glow {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to top, rgba(10, 15, 29, 0.4) 0%, transparent 60%);
    pointer-events: none;
}

.image-border-glow:hover .hero-img {
    transform: scale(1.04);
}

.image-border-glow:hover::before {
    opacity: 0.8;
}

/* 浮动指标卡片 */
.floating-stat-card {
    position: absolute;
    padding: 0.9rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 10;
}

#float-card-1 {
    top: 15%;
    left: -15%;
    border-left: 3px solid var(--accent-orange);
    animation: float-y 6s infinite ease-in-out;
}

#float-card-2 {
    bottom: 12%;
    right: -10%;
    border-left: 3px solid var(--accent-blue);
    animation: float-y-reverse 5s infinite ease-in-out;
}

.float-icon {
    width: 1.75rem;
    height: 1.75rem;
}

.floating-stat-card h4 {
    font-size: 0.9rem;
    font-weight: 700;
}

.floating-stat-card p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin: 0;
}

/* 底部数据条 */
.hero-stats-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(18, 24, 41, 0.8);
    border-top: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    padding: 1.75rem 0;
    z-index: 8;
}

.stats-container {
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
}

.stat-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.stat-item:last-child {
    border-right: none;
}

.stat-num {
    font-family: 'Outfit', sans-serif;
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.1;
    background: linear-gradient(90deg, #FFFFFF 0%, #94A3B8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-suffix {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-orange);
    margin-left: 2px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.4rem;
}

/* 5. 关于我们 (About Section) */
.about-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 5rem;
    align-items: start;
}

.about-h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.about-p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.about-features {
    margin-top: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feat-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.feat-icon {
    width: 2.25rem;
    height: 2.25rem;
    background: rgba(13, 148, 136, 0.1);
    border: 1px solid rgba(13, 148, 136, 0.2);
    border-radius: var(--radius-md);
    color: var(--accent-teal);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feat-icon i {
    width: 1.25rem;
    height: 1.25rem;
}

.feat-txt strong {
    display: block;
    font-size: 1.05rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.feat-txt span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 关于我们右半部分：图卡+时间轴 */
.about-visual-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--glass-border);
    aspect-ratio: 16/9;
}

.about-warehouse-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.warehouse-card-caption {
    position: absolute;
    bottom: 0; left: 0; width: 100%;
    background: linear-gradient(to top, rgba(10, 15, 29, 0.95) 0%, rgba(10, 15, 29, 0.3) 100%);
    padding: 1.25rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.warehouse-card-caption h5 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.warehouse-card-caption p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* 纵向大事记时间轴 */
.timeline-container {
    margin-top: 3.5rem;
}

.timeline-heading {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.timeline-wrapper {
    position: relative;
    border-left: 2px dashed rgba(255, 255, 255, 0.1);
    padding-left: 1.75rem;
    margin-left: 10px;
}

.timeline-item {
    position: relative;
    margin-bottom: 2.25rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.tl-dot {
    position: absolute;
    left: calc(-1.75rem - 7px);
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background-color: var(--bg-primary);
    border: 2px solid var(--accent-blue);
    z-index: 2;
    transition: var(--transition-normal);
}

.timeline-item:hover .tl-dot {
    background-color: var(--accent-orange);
    border-color: var(--accent-orange);
    box-shadow: 0 0 10px var(--accent-orange);
    transform: scale(1.3);
}

.tl-year {
    font-family: 'Outfit', sans-serif;
    font-size: 0.875rem;
    font-weight: 800;
    color: var(--accent-blue);
    margin-bottom: 0.25rem;
    letter-spacing: 0.05em;
}

.tl-content h5 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.tl-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* 6. 核心产品 (Products Section) */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4.5rem;
}

.product-card {
    padding: 2.5rem 2rem;
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-teal));
    opacity: 0;
    transition: var(--transition-normal);
}

.prod-icon-wrapper {
    width: 3.5rem;
    height: 3.5rem;
    background: rgba(37, 99, 235, 0.05);
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: var(--radius-md);
    color: #60A5FA;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    transition: var(--transition-normal);
}

.prod-icon {
    width: 1.75rem;
    height: 1.75rem;
    transition: var(--transition-normal);
}

.prod-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.prod-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2rem;
    min-height: 4.8rem;
}

.prod-bullet-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2.25rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1.5rem;
}

.prod-bullet-list li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.icon-bullet {
    width: 1rem;
    height: 1rem;
    color: var(--accent-teal);
    flex-shrink: 0;
    margin-top: 2px;
}

.prod-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.prod-link i {
    width: 1.1rem;
    height: 1.1rem;
    transition: var(--transition-fast);
}

/* 产品卡悬浮 */
.product-card:hover {
    transform: translateY(-5px);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-lg), 0 10px 30px rgba(37, 99, 235, 0.08);
}

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

.product-card:hover .prod-icon-wrapper {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-teal) 100%);
    color: var(--text-primary);
    border-color: transparent;
    transform: scale(1.05);
}

.product-card:hover .prod-link i {
    transform: translateX(4px);
}

/* 核心产品横幅 banner */
.product-featured-banner {
    padding: 3rem;
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.featured-banner-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
    align-items: center;
}

.featured-banner-img-box {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    aspect-ratio: 4/3;
}

.featured-banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-glow {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    box-shadow: inset 0 0 30px rgba(0,0,0,0.5);
    pointer-events: none;
}

.featured-banner-content .mini-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(234, 88, 12, 0.1);
    border: 1px solid rgba(234, 88, 12, 0.25);
    color: #F97316;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}

.featured-banner-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.featured-banner-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.banner-tag-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.banner-tag {
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.banner-tag i {
    width: 1.1rem;
    height: 1.1rem;
}

/* 7. 技术服务流程 (Services Section) */
.steps-flow {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 5rem;
}

.step-card {
    flex: 1;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2.25rem 1.5rem;
    text-align: center;
    position: relative;
    transition: var(--transition-normal);
}

.step-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    font-family: 'Outfit', sans-serif;
    font-size: 0.8rem;
    font-weight: 800;
    background: var(--accent-orange);
    color: var(--text-primary);
    padding: 2px 10px;
    border-radius: var(--radius-full);
}

.step-icon-box {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
    color: var(--text-secondary);
    transition: var(--transition-normal);
}

.step-icon-box i {
    width: 1.35rem;
    height: 1.35rem;
}

.step-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.step-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.step-arrow {
    color: var(--text-muted);
    animation: pulse-arrow 1.5s infinite alternate;
}

.step-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.1);
}

.step-card:hover .step-icon-box {
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-blue);
    border-color: rgba(37, 99, 235, 0.2);
}

/* 附加服务块 */
.service-extra-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.extra-service-card {
    padding: 2.25rem 2rem;
    border-left: 3px solid var(--accent-blue);
}

#extra-card-1 { border-left-color: var(--accent-blue); }
#extra-card-2 { border-left-color: var(--accent-teal); }
#extra-card-3 { border-left-color: var(--accent-orange); }

.card-head {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.card-head i {
    width: 1.75rem;
    height: 1.75rem;
}

.card-head h4 {
    font-size: 1.2rem;
    font-weight: 700;
}

.extra-service-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 8. 经典案例 (Cases Section) */
.case-tabs-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

.tab-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 0.6rem 1.5rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition-normal);
}

.tab-btn:hover, .tab-btn.active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 2.5rem;
}

.case-card {
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* 精致遮罩标签 */
.case-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    z-index: 10;
    background: rgba(10, 15, 29, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(4px);
    color: var(--text-primary);
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
}

/* 模拟精美案例图片 */
.case-img-placeholder {
    height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    position: relative;
    overflow: hidden;
}

.case-img-placeholder::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: 
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.15), transparent 60%),
        radial-gradient(circle at bottom right, rgba(13, 148, 136, 0.1), transparent 60%);
}

.case-placeholder-icon {
    width: 3rem;
    height: 3rem;
    color: rgba(255, 255, 255, 0.15);
    transition: var(--transition-normal);
}

.case-img-placeholder span {
    font-size: 0.95rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.05em;
    z-index: 2;
}

.case-info {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-info h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.case-p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex: 1;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.case-tags span {
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

/* 案例卡悬浮 */
.case-card:hover {
    transform: translateY(-5px);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-lg);
}

.case-card:hover .case-placeholder-icon {
    transform: scale(1.1) rotate(5deg);
    color: var(--accent-orange);
}

/* 9. 联系我们 (Contact Section) */
.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
    align-items: start;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.c-card {
    padding: 1.5rem 1.75rem;
    display: flex;
    gap: 1.25rem;
    align-items: center;
}

.c-icon-box {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-md);
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    color: var(--accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.c-icon-box i {
    width: 1.35rem;
    height: 1.35rem;
}

.c-detail h5 {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.c-detail p {
    font-size: 1.05rem;
    color: var(--text-primary);
}

.c-detail strong {
    font-size: 1.2rem;
    font-family: 'Outfit', sans-serif;
}

/* FAQ 模块 */
.faq-container {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2.5rem;
}

.faq-heading {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.faq-item {
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.02);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition-normal);
}

.faq-question {
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
}

.faq-toggle {
    width: 1.1rem;
    height: 1.1rem;
    color: var(--text-muted);
    transition: var(--transition-normal);
    flex-shrink: 0;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background: rgba(10, 15, 29, 0.4);
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem 1.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* FAQ 激活状态 */
.faq-item.active {
    border-color: rgba(37, 99, 235, 0.25);
    background: rgba(37, 99, 235, 0.03);
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
    color: var(--accent-blue);
}

/* 表单模块 */
.contact-form-block {
    padding: 3rem 2.5rem;
    border: 1px solid var(--glass-border);
}

.form-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.form-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.required {
    color: var(--accent-orange);
    margin-left: 2px;
}

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

.input-icon {
    position: absolute;
    left: 14px;
    width: 1.2rem;
    height: 1.2rem;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    background: rgba(10, 15, 29, 0.8);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    font-family: inherit;
    transition: var(--transition-normal);
}

.form-group textarea {
    resize: none;
}

.textarea-wrapper {
    align-items: flex-start;
}

.textarea-icon {
    top: 14px;
}

/* 输入聚焦效果 */
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 10px rgba(37, 99, 235, 0.15);
    background: rgba(18, 24, 41, 0.9);
}

.form-group input:focus + .input-icon,
.form-group select:focus + .input-icon,
.form-group textarea:focus + .input-icon {
    color: var(--accent-blue);
}

/* 表单下拉项特殊样式 */
.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 16px;
    padding-right: 2.5rem;
}

.form-group select option {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

/* 错误验证消息 */
.error-msg {
    position: absolute;
    bottom: -1.25rem;
    left: 2px;
    font-size: 0.75rem;
    color: #F87171;
    opacity: 0;
    transform: translateY(-5px);
    pointer-events: none;
    transition: var(--transition-fast);
}

.form-group.invalid input, .form-group.invalid textarea {
    border-color: #EF4444;
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.1);
}

.form-group.invalid .error-msg {
    opacity: 1;
    transform: translateY(0);
}

.btn-submit {
    width: 100%;
    margin-top: 1rem;
    padding: 0.9rem;
}

/* 10. 页脚 (Footer Section) */
.footer {
    background-color: #050811;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding: 5rem 0 0 0;
    color: var(--text-secondary);
}

.footer-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
    gap: 3.5rem;
    margin-bottom: 4rem;
}

.footer-brand .f-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.25rem;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.f-logo-svg {
    width: 32px;
    height: 32px;
}

.f-desc {
    font-size: 0.875rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.f-socials {
    display: flex;
    gap: 1rem;
}

.f-socials a {
    width: 2.2rem;
    height: 2.2rem;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.f-socials a:hover {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.footer-links h4, .footer-contact h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.75rem;
    position: relative;
}

.footer-links h4::after, .footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: -6px; left: 0; width: 30px; height: 2px;
    background: var(--accent-blue);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.footer-links li {
    font-size: 0.875rem;
}

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

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-contact li {
    font-size: 0.875rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.f-icon {
    width: 1.1rem;
    height: 1.1rem;
    color: var(--accent-blue);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-bottom {
    background-color: #020409;
    border-top: 1px solid rgba(255, 255, 255, 0.02);
    padding: 1.75rem 0;
    font-size: 0.75rem;
    color: var(--text-muted);
}

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

.footer-bottom a:hover {
    color: var(--text-secondary);
}

/* 11. 全局提示 Toast 弹窗 */
.toast {
    position: fixed;
    bottom: 30px;
    right: -400px; /* 默认隐藏在屏幕右侧 */
    width: 380px;
    background: rgba(18, 24, 41, 0.95);
    border: 1px solid rgba(34, 197, 94, 0.3); /* 绿边 */
    backdrop-filter: blur(12px);
    border-radius: var(--radius-md);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(34, 197, 94, 0.1);
    padding: 1.25rem 1.5rem;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: right 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    overflow: hidden;
}

.toast.show {
    right: 30px;
}

.toast-content {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.toast-icon-box {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--radius-full);
    background: rgba(34, 197, 94, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.icon-neon-green {
    width: 1.25rem;
    height: 1.25rem;
    color: #22C55E;
}

.toast-text h5 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.toast-text p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 2px;
    line-height: 1.5;
}

/* 进度条动画 */
.toast-progress {
    height: 3px;
    width: 100%;
    background-color: rgba(34, 197, 94, 0.2);
    position: absolute;
    bottom: 0;
    left: 0;
}

.toast-progress::before {
    content: '';
    position: absolute;
    top: 0; left: 0; height: 100%; width: 100%;
    background-color: #22C55E;
    transform-origin: left;
}

.toast.show .toast-progress::before {
    animation: toast-countdown 4s linear forwards;
}

/* 12. 遮罩层与移动端响应式 (Mobile Overlay & Responsiveness) */
.nav-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(10, 15, 29, 0.8);
    backdrop-filter: blur(4px);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-normal);
}

.nav-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* 13. 动画关键帧 (Keyframes) */
@keyframes float-y {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes float-y-reverse {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

@keyframes pulse-glow-dot {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 10px var(--accent-teal); }
}

@keyframes pulse-arrow {
    0% { transform: translateX(0); opacity: 0.4; }
    100% { transform: translateX(4px); opacity: 1; }
}

@keyframes toast-countdown {
    to { transform: scaleX(0); }
}

.animate-spin-slow {
    animation: spin 15s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 首次加载入场特效类 */
.fade-in-up {
    opacity: 0;
    transform: translateY(25px);
    animation: fadeInUp 0.8s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    animation: fadeInRight 0.8s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }

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

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

/* ==========================================================================
   14. 媒体查询适配 (Media Queries)
   ========================================================================== */

/* 💻 平板与笔记本适配 (1024px 以下) */
@media (max-width: 1024px) {
    .section-padding { padding: 5rem 0; }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3.5rem;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-section h1 {
        font-size: 3rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        max-width: 580px;
        margin: 0 auto;
        width: 100%;
    }
    
    #float-card-1 { left: -5%; }
    #float-card-2 { right: -5%; }
    
    .hero-stats-bar {
        position: relative;
        margin-top: 4rem;
        backdrop-filter: none;
    }
    
    .stats-container {
        flex-wrap: wrap;
    }
    
    .stat-item {
        flex: 1 1 40%;
        text-align: center;
        border-right: none;
        padding: 0.5rem 0;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .featured-banner-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .featured-banner-img-box {
        max-width: 500px;
        margin: 0 auto;
        width: 100%;
    }
    
    .steps-flow {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .step-arrow {
        transform: rotate(90deg);
        animation: float-y 1s infinite alternate;
        padding: 0.5rem 0;
    }
    
    .step-card {
        width: 100%;
        max-width: 450px;
        margin: 0 auto;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .footer-container {
        grid-template-columns: 1.5fr 1fr 1fr;
        gap: 2.5rem;
    }
    
    .footer-contact {
        grid-column: span 3;
    }
}

/* 📱 手机端适配 (768px 以下) */
@media (max-width: 768px) {
    .section-title { font-size: 1.85rem; }
    
    /* 移动端汉堡导航菜单 */
    .mobile-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -300px;
        width: 280px;
        height: 100vh;
        background: #0B0F1C;
        border-left: 1px solid rgba(255, 255, 255, 0.08);
        padding: 90px 2rem 2rem 2rem;
        z-index: 1000;
        transition: var(--transition-slow);
        display: block;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu ul {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .nav-link {
        align-items: flex-start;
        font-size: 1.1rem;
    }
    
    .nav-link span {
        font-size: 0.65rem;
        margin-top: 2px;
    }
    
    .nav-link::after {
        left: 0;
        transform: none;
    }
    
    .nav-link:hover::after, .nav-link.active::after {
        width: 40px;
    }
    
    /* 移动端汉堡图标交叉状态 */
    .mobile-toggle.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .mobile-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    .nav-actions {
        margin-right: 1rem;
    }
    
    .btn-call span {
        display: none; /* 仅保留图标，节省空间 */
    }
    
    .btn-call {
        padding: 0.6rem 0.6rem;
        border-radius: var(--radius-full);
    }
    
    .hero-section {
        padding-top: 110px;
        padding-bottom: 60px;
    }
    
    .hero-section h1 {
        font-size: 2.25rem;
    }
    
    .hero-section p {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    #float-card-1, #float-card-2 {
        display: none; /* 移动端隐藏浮动卡片防重叠 */
    }
    
    .stats-container {
        gap: 1rem;
    }
    
    .stat-item {
        flex: 1 1 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        padding-bottom: 1rem;
    }
    
    .stat-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    
    .product-featured-banner {
        padding: 1.5rem;
    }
    
    .form-group-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .contact-form-block {
        padding: 2rem 1.5rem;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .footer-contact {
        grid-column: span 1;
    }
    
    .fb-container {
        flex-direction: column;
        gap: 0.75rem;
        text-align: center;
    }
    
    .toast {
        width: calc(100% - 40px);
        left: 20px;
        right: auto;
        bottom: -200px;
        transition: bottom 0.5s ease-in-out;
    }
    
    .toast.show {
        bottom: 20px;
        right: auto;
    }
}