/* ===== 全局样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2aae67;
    --lime-green: #a8e063;
    --white: #ffffff;
    --gray: #f5f5f5;
    --dark-gray: #666666;
    --text-dark: #111;
    --text-light: #999999;
    --shadow: rgba(42, 174, 103, 0.1);
    --shadow-hover: rgba(42, 174, 103, 0.2);
}

html {
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch; /* iOS平滑滚动 */
}

* {
    scroll-behavior: inherit;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

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

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px var(--shadow);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    box-shadow: 0 4px 20px var(--shadow-hover);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.nav-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.nav-slogan {
    font-size: 0.85rem;
    color: var(--text-light);
    font-weight: normal;
    white-space: nowrap;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-link:hover::after {
    width: 100%;
}

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

/* ===== Hero 区域 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    overflow: hidden;
    padding-top: 80px;
}

#particle-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: auto; /* 允许鼠标交互 */
    cursor: grab; /* 显示抓取光标 */
    touch-action: pan-y; /* 允许垂直滚动 */
}

#particle-canvas:active {
    cursor: grabbing; /* 拖动时显示抓取中光标 */
}


.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
    z-index: 0;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    max-width: 800px;
    padding: 2rem;
}

.hero-title {
    font-size: 4rem;
    font-weight: bold;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: 3rem;
    opacity: 0.95;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 255, 255, 0.3);
}

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

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--white);
    animation: bounce 2s infinite;
    z-index: 2;
}

.scroll-indicator span {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 10px;
    opacity: 0.8;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(45deg);
    margin: 0 auto;
}

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

/* ===== 动画类 ===== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards;
}

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

.fade-in-up:nth-child(1) { animation-delay: 0.1s; }
.fade-in-up:nth-child(2) { animation-delay: 0.3s; }
.fade-in-up:nth-child(3) { animation-delay: 0.5s; }
.fade-in-up:nth-child(4) { animation-delay: 0.7s; }

[data-aos] {
    opacity: 0;
    transition: all 0.8s ease;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(50px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-left"] {
    transform: translateX(-50px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-right"] {
    transform: translateX(50px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

/* ===== 通用区域样式 ===== */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.section-title {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-top: 1.5rem;
}

/* ===== 核心功能区域 ===== */
.features {
    background: var(--gray);
    overflow: hidden;
    padding: 80px 0;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}


.features-scroll-wrapper {
    overflow: hidden;
    position: relative;
    width: 100%;
    padding: 20px 0;
    margin: 0;
}

.features-scroll {
    display: flex;
    gap: 40px;
    width: max-content;
    animation: scroll-left 60s linear infinite;
    will-change: transform;
    padding: 0 40px;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 280px;
    width: 280px;
    max-width: 280px;
    padding: 30px 20px;
    background: var(--white);
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    box-sizing: border-box;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-hover);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 15px;
    border-radius: 12px;
    background: linear-gradient(135deg, #38ef7d 0%, #11998e 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: visible;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.feature-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { left: -100%; }
    100% { left: 100%; }
}

.feature-icon i {
    font-size: 1.8rem;
    color: rgba(255, 255, 255, 0.95);
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.feature-item .feature-title {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 10px;
    text-align: center;
    font-weight: 600;
}

.feature-text {
    color: var(--text-light);
    line-height: 1.6;
    text-align: center;
    font-size: 0.95rem;
}

@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* ===== 应用截图区域 ===== */
.screenshots {
    background: linear-gradient(135deg, #f5f7fa 0%, #ffffff 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.screenshots .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    box-sizing: border-box;
    overflow: visible;
}


.screenshots-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

/* 轮播图样式 */
.screenshots-carousel {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
}

.carousel-wrapper {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    border-radius: 8px;
    overflow: hidden;
   
}

.carousel-container {
    display: flex;
    width: 100%;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.carousel-item {
    min-width: 100%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.carousel-item img {
    width: 100%;
    height: auto;
    display: block;
    max-width: 100%;
    object-fit: contain;
}

.carousel-item img[src=""],
.carousel-item img:not([src]) {
    background: linear-gradient(135deg, rgba(42, 174, 103, 0.1), rgba(168, 224, 99, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.carousel-item img[src=""]:after,
.carousel-item img:not([src]):after {
    content: '📱';
    font-size: 3rem;
    opacity: 0.3;
}

/* 防止图片加载时布局跳动 */
.carousel-item img {
    min-height: 0;
    min-width: 0;
}


/* 轮播控制按钮 */
.carousel-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
    width: 100%;
}

.carousel-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--white);
    border: 1px solid var(--gray);
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

.carousel-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.carousel-btn:active {
    transform: scale(0.95);
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 8px;
    align-items: center;
}

.carousel-indicators .indicator {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-light);
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-indicators .indicator.active {
    width: 20px;
    height: 6px;
    border-radius: 3px;
    background: var(--primary-color);
}

.carousel-indicators .indicator:hover {
    background: var(--primary-color);
}

/* 右侧信息区域 */
.screenshots-info {
    padding: 20px;
    animation: fadeInUp 0.8s ease;
}

.screenshots-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(42, 174, 103, 0.1), rgba(168, 224, 99, 0.1));
    border-radius: 20px;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
    border: 1px solid rgba(42, 174, 103, 0.2);
    transition: all 0.3s ease;
}

.screenshots-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(42, 174, 103, 0.2);
}

.screenshots-badge i {
    font-size: 1rem;
}

.screenshots-title {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 25px;
    font-weight: 700;
    line-height: 1.2;
}

.title-highlight {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.title-highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background: linear-gradient(135deg, rgba(42, 174, 103, 0.3), rgba(168, 224, 99, 0.3));
    z-index: -1;
    border-radius: 4px;
    animation: highlight-slide 1.5s ease;
}

@keyframes highlight-slide {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

.screenshots-description {
    color: var(--text-light);
    line-height: 1.9;
    font-size: 1.05rem;
    margin-bottom: 30px;
    text-align: justify;
}

.screenshots-features {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 35px;
}

.feature-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--white);
    border: 2px solid var(--gray);
    border-radius: 25px;
    color: var(--text-dark);
    font-size: 0.9rem;
    transition: all 0.3s ease;
    cursor: default;
}

.feature-tag:hover {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(42, 174, 103, 0.05), rgba(168, 224, 99, 0.05));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.feature-tag i {
    color: var(--primary-color);
    font-size: 0.9rem;
}

.screenshots-btn {
    display: inline-flex !important;
    align-items: center;
    gap: 10px;
    padding: 15px 35px;
    font-size: 1.1rem;
    position: relative;
    overflow: hidden;
    background: linear-gradient(
        90deg,
        #2aae67 0%,
        #38ef7d 25%,
        #11998e 50%,
        #38ef7d 75%,
        #2aae67 100%
    ) !important;
    background-size: 400% 100% !important;
    background-position: 0% 50% !important;
    animation: gradient-flow 3s ease infinite !important;
    color: var(--white) !important;
    border: none !important;
    border-radius: 50px !important;
    box-shadow: 0 4px 15px rgba(42, 174, 103, 0.3) !important;
    z-index: 1;
    transition: all 0.3s ease !important;
    will-change: background-position, transform, box-shadow;
}

@keyframes gradient-flow {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* 光泽流动效果 */
.screenshots-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: shine 2s ease-in-out infinite;
    z-index: 1;
}

@keyframes shine {
    0% {
        left: -100%;
    }
    50% {
        left: 100%;
    }
    100% {
        left: 100%;
    }
}

/* 悬停时的涟漪效果 */
.screenshots-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease, opacity 0.6s ease;
    opacity: 0;
    z-index: 1;
}

.screenshots-btn:hover::after {
    width: 300px;
    height: 300px;
    opacity: 1;
}

.screenshots-btn:hover {
    transform: translateY(-3px) scale(1.02) !important;
    box-shadow: 0 10px 30px rgba(42, 174, 103, 0.5) !important;
    animation-duration: 1.5s !important;
}

.screenshots-btn i {
    transition: transform 0.3s ease;
    color: var(--white) !important;
    position: relative;
    z-index: 10;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.screenshots-btn:hover i {
    transform: translateX(5px);
}

.screenshots-btn span {
    position: relative;
    z-index: 10;
    color: var(--white) !important;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}


/* 信息区域动画 */
.screenshots-info > *:not(.screenshots-btn) {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.screenshots-badge {
    animation-delay: 0.1s;
}

.screenshots-title {
    animation-delay: 0.2s;
}

.screenshots-description {
    animation-delay: 0.3s;
}

.screenshots-features {
    animation-delay: 0.4s;
}


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



/* 响应式优化 */
@media (max-width: 480px) {
    .carousel-wrapper {
        max-width: 100%;
        border-radius: 6px;
    }
    
    .screenshots-title {
        font-size: 1.8rem;
    }
    
    .screenshots-description {
        font-size: 0.95rem;
    }
    
    .carousel-btn {
        width: 32px;
        height: 32px;
        font-size: 0.85rem;
    }
    
    .carousel-controls {
        gap: 12px;
        margin-top: 15px;
    }
    
    .feature-tag {
        font-size: 0.85rem;
        padding: 8px 14px;
    }
    
    .screenshots-content {
        gap: 30px;
    }
    
    .screenshots-btn {
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        margin: 0 auto !important;
        width: auto !important;
    }
}

/* ===== 定制服务区域 ===== */
.custom {
    background: var(--white);
}

.custom-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 30px;
}

.custom-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 30px 20px;
    background: var(--white);
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 1px solid rgba(42, 174, 103, 0.1);
}

.custom-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(42, 174, 103, 0.15);
    border-color: var(--primary-color);
}

.custom-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(42, 174, 103, 0.1), rgba(168, 224, 99, 0.1));
    transition: all 0.3s ease;
    position: relative;
}

.custom-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--lime-green));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.custom-card:hover .custom-icon::before {
    opacity: 1;
}

.custom-icon i {
    font-size: 1.8rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.custom-card:hover .custom-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--lime-green));
    transform: scale(1.1);
}

.custom-card:hover .custom-icon i {
    color: var(--white);
    transform: scale(1.1);
}

.custom-title {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 600;
    line-height: 1.4;
}

.custom-description {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.9rem;
    margin: 0;
}

/* ===== 联系我们区域 ===== */
.contact {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%); /* 添加微妙的渐变背景 */
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

#contact-particle-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: auto; /* 允许鼠标交互 */
    opacity: 0.4; /* 降低不透明度，更柔和 */
    transition: opacity 0.3s ease;
}

/* 悬停时稍微增强效果 */
.contact:hover #contact-particle-canvas {
    opacity: 0.6;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 30px 20px;
    transition: all 0.3s ease;
}

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

.contact-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    border-radius: 12px;
    background: rgba(42, 174, 103, 0.08);
    transition: all 0.3s ease;
    position: relative;
}

.contact-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.contact-item:hover .contact-icon {
    background: var(--primary-color);
    transform: scale(1.1);
}

.contact-item:hover .contact-icon i {
    color: var(--white);
    transform: scale(1.1);
}

.contact-text h4 {
    color: var(--text-dark);
    margin-bottom: 8px;
    font-size: 1.1rem;
    font-weight: 600;
}

.contact-text p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.6;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--gray);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

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

.form-group textarea {
    resize: vertical;
}

/* ===== 底部 ===== */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 40px 0 20px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 30px;
}

.footer-logo {
    height: 80px;
    width: auto;
    object-fit: contain;
    margin-bottom: 15px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-brand h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.footer-brand p {
    color: var(--text-light);
    margin: 0;
}

.footer-links h4 {
    margin-bottom: 15px;
    color: var(--white);
}

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

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

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-light);
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .custom-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 25px;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.3rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .features {
        overflow: hidden;
        padding: 60px 0;
    }

    .features-scroll-wrapper {
        overflow: hidden;
        margin: 0;
        padding: 15px 0;
    }

    .features-scroll {
        padding: 0 20px;
        gap: 30px;
    }

    .feature-item {
        min-width: 250px;
        width: 250px;
        max-width: 250px;
        padding: 25px 15px;
    }

    .custom-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }

    .custom-card {
        padding: 25px 15px;
    }

    .custom-icon {
        width: 56px;
        height: 56px;
        margin-bottom: 15px;
    }

    .custom-icon i {
        font-size: 1.5rem;
    }

    .custom-title {
        font-size: 1rem;
    }

    .custom-description {
        font-size: 0.85rem;
    }

    .contact-info {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .contact-item {
        padding: 25px 15px;
    }

    .contact-icon {
        width: 52px;
        height: 52px;
        margin-bottom: 15px;
    }

    .contact-icon i {
        font-size: 1.4rem;
    }

    .screenshots-content {
        grid-template-columns: 1fr;
        gap: 40px;
        max-width: 100%;
    }

    .screenshots-carousel {
        order: 1;
        width: 100%;
        max-width: 100%;
    }

    .screenshots-info {
        order: 2;
        text-align: center;
        width: 100%;
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .screenshots-btn {
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        margin: 0 auto !important;
        width: auto !important;
    }

    .carousel-wrapper {
        max-width: 100%;
    }

    .screenshots-title {
        font-size: 2rem;
    }

    .screenshots-features {
        justify-content: center;
    }

    .carousel-controls {
        flex-wrap: wrap;
        width: 100%;
        max-width: 100%;
    }

    .footer-content {
        align-items: center;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }

    .features {
        padding: 50px 0;
    }

    .features-scroll-wrapper {
        padding: 10px 0;
    }

    .features-scroll {
        padding: 0 15px;
        gap: 20px;
    }

    .feature-item {
        min-width: 220px;
        width: 220px;
        max-width: 220px;
        padding: 20px 15px;
    }

    .custom-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .custom-card {
        padding: 20px 15px;
    }

    .custom-icon {
        width: 52px;
        height: 52px;
        margin-bottom: 12px;
    }

    .custom-icon i {
        font-size: 1.4rem;
    }

    .contact {
        padding: 60px 0;
    }

    .contact-info {
        gap: 25px;
    }

    .contact-item {
        padding: 20px 15px;
    }

    .contact-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 12px;
    }

    .contact-icon i {
        font-size: 1.3rem;
    }

    .contact-text h4 {
        font-size: 1rem;
    }

    .contact-text p {
        font-size: 0.9rem;
    }
}