/* AI智能生图平台 - 主样式文件 */

/* ===== 字体定义 ===== */
@font-face {
    font-family: 'HarmonyOS_SansSC';
    src: url('/assets/webfonts/HarmonyOS_SansSC_Regular.woff') format('woff');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

/* ===== 英雄区样式 ===== */
.hero-section {
    background: linear-gradient(180deg, #ffeaa7 0%, #ffede9 30%, #ffabc9 60%, #ffb3ba 80%, #ffffff 100%);
    padding: 80px 0 60px;
    position: relative;
    overflow: hidden;
    min-height: auto;
    display: flex;
    align-items: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

/* 粒子特效容器 */
.particles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.particle {
    position: absolute;
    background: rgba(255, 71, 87, 0.8);
    border-radius: 50%;
    animation: particleFloat 15s linear infinite;
}

.particle:nth-child(1) { width: 4px; height: 4px; left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { width: 6px; height: 6px; left: 20%; animation-delay: 2s; }
.particle:nth-child(3) { width: 3px; height: 3px; left: 30%; animation-delay: 4s; }
.particle:nth-child(4) { width: 5px; height: 5px; left: 40%; animation-delay: 6s; }
.particle:nth-child(5) { width: 4px; height: 4px; left: 50%; animation-delay: 8s; }
.particle:nth-child(6) { width: 7px; height: 7px; left: 60%; animation-delay: 10s; }
.particle:nth-child(7) { width: 3px; height: 3px; left: 70%; animation-delay: 12s; }
.particle:nth-child(8) { width: 5px; height: 5px; left: 80%; animation-delay: 14s; }
.particle:nth-child(9) { width: 4px; height: 4px; left: 90%; animation-delay: 16s; }
.particle:nth-child(10) { width: 6px; height: 6px; left: 95%; animation-delay: 18s; }

/* 浮动动画 */
@keyframes particleFloat {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) rotate(360deg);
        opacity: 0;
    }
}

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

.hero-container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.hero-header {
    text-align: center;
    margin-bottom: 20px;
    margin-top: 20px;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-family: 'HarmonyOS_SansSC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 48px;
    font-weight: normal;
    color: #2d3436;
    margin-bottom: 30px;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
    background: linear-gradient(135deg, #2d3436, #636e72, #2d3436);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlow 3s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    0% {
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }
    100% {
        text-shadow: 0 4px 20px rgba(255, 71, 87, 0.3);
    }
}

.hero-benefits {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #636e72;
    font-family: 'HarmonyOS_SansSC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 16px;
    font-weight: normal;
}

.benefit-icon {
    width: 20px;
    height: 20px;
    background: #ff4757;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 10px;
}

.hero-cta {
    margin-bottom: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #ff4757, #ff6b7a);
    color: white;
    text-decoration: none;
    padding: 16px 100px;
    border-radius: 50px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 8px 30px rgba(255, 71, 87, 0.4);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    animation: buttonPulse 2s ease-in-out infinite;
    min-width: 200px;
    justify-content: center;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 50px rgba(255, 71, 87, 0.6);
    color: white;
}

@keyframes buttonPulse {
    0%, 100% { 
        box-shadow: 0 8px 30px rgba(255, 71, 87, 0.4);
    }
    50% { 
        box-shadow: 0 8px 30px rgba(255, 71, 87, 0.6), 0 0 20px rgba(255, 71, 87, 0.3);
    }
}

.hero-offer {
    color: #636e72;
    font-size: 14px;
    font-weight: 500;
}

/* ===== 英雄区行业切换按钮 ===== */
.hero-category-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.category-tab {
    padding: 3px 20px;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid rgba(255, 71, 87, 0.4);
    border-radius: 25px;
    color: #636e72;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.category-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 71, 87, 0.1), transparent);
    transition: left 0.6s ease;
}

.category-tab:hover::before {
    left: 100%;
}

.category-tab:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 71, 87, 0.3);
    border-color: rgba(255, 71, 87, 0.5);
}

.category-tab.active {
    background: linear-gradient(135deg, #ff4757, #ff6b7a);
    color: white;
    border-color: #ff4757;
    box-shadow: 0 8px 25px rgba(255, 71, 87, 0.4);
    transform: translateY(-2px);
}

.category-tab.active:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(255, 71, 87, 0.5);
}

/* ===== 英雄区功能展示网格 ===== */
.hero-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin: 0 40px 20px 40px;
    max-width: 1500px;
    margin-left: auto;
    margin-right: auto;
}

.hero-feature-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 15px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 71, 87, 0.2);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    min-height: 240px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hero-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #ff4757, #ff6b7a, #ff4757);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.hero-feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 60px rgba(255, 71, 87, 0.2);
    border-color: rgba(255, 71, 87, 0.3);
}

.hero-feature-title {
    font-size: 18px;
    font-weight: 700;
    color: #2d3436;
    margin-bottom: 15px;
    text-align: center;
    position: relative;
}

.hero-feature-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #ff4757, #ff6b7a);
    border-radius: 1px;
}

.hero-feature-demo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 15px;
    padding: 12px;
    background: linear-gradient(135deg, #ffffff, #fff5f5);
    border-radius: 15px;
    border: 1px solid rgba(255, 71, 87, 0.3);
    flex: 1;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.hero-demo-before,
.hero-demo-after {
    flex: 1;
    max-width: 180px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    position: relative;
}

.hero-demo-before:hover,
.hero-demo-after:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.hero-demo-before img,
.hero-demo-after img {
    width: 100%;
    height: auto;
    display: block;
    transition: all 0.3s ease;
}

.hero-demo-before:hover img,
.hero-demo-after:hover img {
    transform: scale(1.1);
}

.hero-demo-arrow {
    color: #ff4757;
    font-size: 24px;
    font-weight: bold;
    animation: pulse 2s infinite;
    text-shadow: 0 2px 4px rgba(255, 71, 87, 0.3);
}

.hero-feature-description {
    text-align: center;
    color: white;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
    padding: 8px 12px;
    background: linear-gradient(135deg, #ff4757, #ff6b7a);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(255, 71, 87, 0.3);
    margin-top: auto;
}

/* ===== 新增功能卡片样式 ===== */
.hero-additional-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-bottom: 20px;
    max-width: 1500px;
    margin-left: auto;
    margin-right: auto;
}

.additional-feature-card {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 15px;
    padding: 15px;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 71, 87, 0.15);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 15px;
}

.additional-feature-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 12px 35px rgba(255, 71, 87, 0.15);
    border-color: rgba(255, 71, 87, 0.3);
}

.additional-feature-image {
    width: 100px;
    height: 100px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
    object-fit: cover;
    transition: all 0.3s ease;
}

.additional-feature-card:hover .additional-feature-image {
    transform: scale(1.05);
}

.additional-feature-content {
    flex: 1;
    text-align: left;
}

.additional-feature-title {
    font-size: 18px;
    font-weight: 700;
    color: #2d3436;
    margin-bottom: 8px;
    position: relative;
}

.additional-feature-title::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, #ff4757, #ff6b7a);
    border-radius: 1px;
}

.additional-feature-description {
    color: #636e72;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    text-align: left;
}

/* ===== 行业分类筛选器 ===== */
.category-filter {
    background: white;
    padding: 30px 0;
    border-bottom: 1px solid #e9ecef;
}

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

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 12px 24px;
    border: 2px solid #e9ecef;
    background: white;
    color: #636e72;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.filter-tab:hover,
.filter-tab.active {
    background: #ff4757;
    color: white;
    border-color: #ff4757;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 71, 87, 0.3);
}

/* ===== 功能展示卡片 ===== */
.features-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
    overflow: hidden;
}

.features-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="rgba(255,71,87,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
    opacity: 0.3;
}

.features-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    background: white;
    border-radius: 25px;
    padding: 40px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 71, 87, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #ff4757, #ff6b7a, #ff4757);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 25px 60px rgba(255, 71, 87, 0.2);
    border-color: rgba(255, 71, 87, 0.3);
}

.feature-title {
    font-size: 24px;
    font-weight: 800;
    color: #2d3436;
    margin-bottom: 30px;
    text-align: center;
    position: relative;
}

.feature-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #ff4757, #ff6b7a);
    border-radius: 2px;
}

.feature-demo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa, #ffffff);
    border-radius: 20px;
    border: 2px solid rgba(255, 71, 87, 0.1);
}

.demo-before,
.demo-after {
    flex: 1;
    max-width: 180px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    position: relative;
}

.demo-before:hover,
.demo-after:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
}

.demo-before img,
.demo-after img {
    width: 100%;
    height: auto;
    display: block;
    transition: all 0.3s ease;
}

.demo-before:hover img,
.demo-after:hover img {
    transform: scale(1.1);
}

.demo-arrow {
    color: #ff4757;
    font-size: 32px;
    font-weight: bold;
    animation: pulse 2s infinite;
    text-shadow: 0 2px 4px rgba(255, 71, 87, 0.3);
}

.feature-description {
    text-align: center;
    color: #636e72;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.6;
    padding: 15px 20px;
    background: linear-gradient(135deg, #ff4757, #ff6b7a);
    color: white;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(255, 71, 87, 0.3);
}

/* ===== 企业版升级区域样式 ===== */
.enterprise-upgrade-section {
    padding: 80px 0;
    background: #ffffff;
    position: relative;
}

.enterprise-background {
    background: linear-gradient(118deg, rgb(255, 245, 246) 11%, rgb(247, 245, 255) 92%);
    padding: 60px 0;
    border-radius: 20px;
    margin: 0 40px;
    max-width: 1500px;
    margin-left: auto;
    margin-right: auto;
}

.enterprise-container {
    max-width: 1500px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.enterprise-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.enterprise-title {
    font-size: 32px;
    font-weight: 600;
    color: #333;
    text-align: center;
    margin: 0 0 40px 0;
}

.mod-title-highlight {
    color: #ff4757;
    font-weight: 700;
}

.utp-mod-content-wrapper {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.utp-mod-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    gap: 40px;
}

/* 左侧内容区域 */
.utp-mod-content-left-wrapper {
    flex: 1;
}

.utp-mod-content-left {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.utp-mod-content-left-item {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 20px;
    border-radius: 12px;
    background: #f8f9fa;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    cursor: pointer;
}

.utp-mod-content-left-item:hover {
    background: #fff;
    border-color: #e9ecef;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.utp-mod-content-left-item.actived {
    background: #fff5f5;
    border-color: #ff4757;
    box-shadow: 0 4px 15px rgba(255, 71, 87, 0.2);
}

.utp-mod-content-left-item-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
}

.utp-mod-content-left-item-title {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.utp-mod-content-left-item.actived .utp-mod-content-left-item-title {
    color: #ff4757;
}

.utp-mod-content-left-item-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
}

.utp-mod-content-left-btn {
    margin-top: 10px;
}

.utp-mod-content-left-btn-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: #333;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.utp-mod-content-left-btn-link:hover {
    background: #555;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-icon {
    font-size: 14px;
    transition: transform 0.3s ease;
}

.utp-mod-content-left-btn-link:hover .btn-icon {
    transform: translateX(2px);
}

/* 右侧演示图片 */
.utp-mod-content-right {
    flex: 1.8;
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 0;
}

.image-container {
    width: 100%;
    height: 100%;
    max-width: 700px;
    min-height: 500px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    position: relative;
}

.image-container:hover {
    transform: scale(1.02);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
}

.demo-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.demo-image.active {
    opacity: 1;
    position: relative;
}

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }
    
    .hero-benefits {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero-category-tabs {
        gap: 10px;
        margin-bottom: 30px;
    }
    
    .category-tab {
        padding: 10px 18px;
        font-size: 14px;
    }
    
    .hero-features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin: 0 15px 30px 15px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-feature-demo {
        gap: 10px;
        padding: 12px;
    }
    
    .hero-demo-before,
    .hero-demo-after {
        max-width: 150px;
    }
    
    .hero-feature-card {
        min-height: 220px;
        padding: 12px;
    }
    
    .hero-additional-features {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 30px;
    }
    
    .additional-feature-card {
        padding: 12px;
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
    
    .additional-feature-image {
        width: 120px;
        height: 120px;
    }
    
    .additional-feature-content {
        text-align: center;
    }
    
    .additional-feature-title::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .cta-button {
        min-width: 180px;
        padding: 14px 40px;
    }
    
    .filter-tabs {
        gap: 10px;
    }
    
    .filter-tab {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .enterprise-background {
        margin: 0 15px;
        padding: 40px 0;
        border-radius: 15px;
        max-width: none;
    }
    
    .enterprise-title {
        font-size: 24px;
        margin: 0 0 30px 0;
    }
    
    .utp-mod-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .utp-mod-content-left {
        width: 100%;
    }
    
    .utp-mod-content-left-item {
        padding: 15px;
    }
    
    .utp-mod-content-left-item-title {
        font-size: 16px;
    }
    
    .utp-mod-content-left-item-desc {
        font-size: 13px;
    }
    
    .utp-mod-content-right {
        width: 100%;
    }
    
    .image-container {
        max-width: 100%;
        min-height: 350px;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .hero-features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
        max-width: 1500px;
        margin: 0 40px 20px 40px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-feature-card {
        min-height: 260px;
    }
    
    .hero-demo-before,
    .hero-demo-after {
        max-width: 160px;
    }
    
    .hero-additional-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .additional-feature-image {
        width: 90px;
        height: 90px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .cta-button {
        padding: 15px 30px;
        font-size: 16px;
    }
    
    .feature-card {
        padding: 20px;
    }
    
    .demo-before,
    .demo-after {
        max-width: 100px;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

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

.pulse {
    animation: pulse 2s infinite;
}

/* ===== 工具类 ===== */
.text-center {
    text-align: center;
}

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

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

.mb-20 {
    margin-bottom: 20px;
}

.mb-30 {
    margin-bottom: 30px;
}

.mb-40 {
    margin-bottom: 40px;
}

.mt-20 {
    margin-top: 20px;
}

.mt-30 {
    margin-top: 30px;
}

.mt-40 {
    margin-top: 40px;
}

.hidden {
    display: none;
}

.visible {
    display: block;
}