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

body {
    font-family: 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #f8fffe 0%, #e8f8f5 30%, #f0f9ff 70%, #f8fffe 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    position: relative;
    overflow-x: hidden;
}

/* 移动端优化：确保页面可以滚动 */
@media (max-width: 768px) {
    body {
        padding: 20px 10px;
        align-items: flex-start;
        min-height: 100vh;
        overflow-x: hidden;
        overflow-y: auto;
    }
}

/* 横屏适配 */
@media (max-width: 768px) and (orientation: landscape) {
    body {
        padding: 10px 5px;
    }
    
    .main-content {
        padding: 10px 10px 20px 10px;
        margin: 8vh auto 0 auto;
    }
    
    .brand {
        margin-bottom: 10px;
    }
    
    .main-title {
        font-size: 24px;
        margin-bottom: 15px;
    }
    
    .feature-highlights {
        margin-bottom: 15px;
    }
    
    .description {
        font-size: 14px;
        margin-bottom: 20px;
    }
}

/* 确保在iOS Safari和其他移动浏览器中正确显示 */
@media (max-width: 768px) {
    html {
        -webkit-text-size-adjust: 100%;
        -ms-text-size-adjust: 100%;
    }
    
    body {
        -webkit-overflow-scrolling: touch;
    }
    
    .main-content {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 15% 25%, rgba(46, 204, 113, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 85% 75%, rgba(52, 152, 219, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 45% 15%, rgba(155, 89, 182, 0.06) 0%, transparent 35%),
        radial-gradient(circle at 25% 85%, rgba(231, 76, 60, 0.05) 0%, transparent 35%),
        radial-gradient(circle at 75% 35%, rgba(46, 204, 113, 0.04) 0%, transparent 30%);
    animation: bgPulse 30s ease-in-out infinite;
    pointer-events: none;
}

@keyframes bgPulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    25% {
        opacity: 0.8;
        transform: scale(1.05);
    }
    50% {
        opacity: 1.2;
        transform: scale(0.95);
    }
    75% {
        opacity: 0.9;
        transform: scale(1.02);
    }
}

/* 背景装饰 */
.bg-decorations {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
}

.decoration {
    position: absolute;
    border-radius: 50%;
    filter: blur(3px);
    animation: decorationFloat 20s ease-in-out infinite;
}

.decoration-1 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(46, 204, 113, 0.15) 0%, transparent 70%);
    top: 10%;
    left: 10%;
    animation-duration: 18s;
    animation-delay: 0s;
}

.decoration-2 {
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(52, 152, 219, 0.12) 0%, transparent 70%);
    top: 20%;
    right: 15%;
    animation-duration: 22s;
    animation-delay: 5s;
}

.decoration-3 {
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(155, 89, 182, 0.1) 0%, transparent 70%);
    bottom: 30%;
    left: 8%;
    animation-duration: 25s;
    animation-delay: 10s;
}

.decoration-4 {
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(231, 76, 60, 0.08) 0%, transparent 70%);
    bottom: 20%;
    right: 20%;
    animation-duration: 20s;
    animation-delay: 15s;
}

.decoration-5 {
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(46, 204, 113, 0.06) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-duration: 30s;
    animation-delay: 8s;
}

@keyframes decorationFloat {
    0%, 100% {
        transform: translateY(0px) translateX(0px) scale(1);
        opacity: 0.7;
    }
    25% {
        transform: translateY(-30px) translateX(20px) scale(1.1);
        opacity: 1;
    }
    50% {
        transform: translateY(-60px) translateX(-15px) scale(0.9);
        opacity: 0.8;
    }
    75% {
        transform: translateY(-20px) translateX(25px) scale(1.05);
        opacity: 0.9;
    }
}

/* 学术粒子 */
.academic-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.academic-particle {
    position: absolute;
    font-size: 18px;
    font-weight: 600;
    color: rgba(52, 152, 219, 0.6);
    opacity: 0.7;
    animation: academicFloat 15s ease-in-out infinite;
}

/* 数学符号 */
.particle-math-1 {
    top: 15%;
    left: 5%;
    font-size: 24px;
    color: rgba(46, 204, 113, 0.7);
    animation: academicFloat 18s ease-in-out infinite;
    animation-delay: 0s;
}

.particle-math-2 {
    top: 25%;
    right: 8%;
    font-size: 20px;
    color: rgba(52, 152, 219, 0.6);
    animation: academicFloat 20s ease-in-out infinite;
    animation-delay: 2s;
}

.particle-math-3 {
    top: 60%;
    left: 3%;
    font-size: 22px;
    color: rgba(155, 89, 182, 0.7);
    animation: academicFloat 16s ease-in-out infinite;
    animation-delay: 4s;
}

.particle-math-4 {
    top: 70%;
    right: 12%;
    font-size: 18px;
    color: rgba(231, 76, 60, 0.6);
    animation: academicFloat 22s ease-in-out infinite;
    animation-delay: 6s;
}

.particle-math-5 {
    top: 45%;
    left: 7%;
    font-size: 16px;
    color: rgba(46, 204, 113, 0.5);
    animation: academicFloat 19s ease-in-out infinite;
    animation-delay: 8s;
}

.particle-math-10 {
    top: 52%;
    left: 9%;
    font-size: 21px;
    color: rgba(52, 152, 219, 0.7);
    animation: academicFloat 17s ease-in-out infinite;
    animation-delay: 3s;
}

.particle-math-11 {
    top: 8%;
    left: 15%;
    font-size: 16px;
    color: rgba(155, 89, 182, 0.5);
    animation: academicFloat 23s ease-in-out infinite;
    animation-delay: 5s;
}

.particle-math-14 {
    top: 68%;
    left: 6%;
    font-size: 19px;
    color: rgba(52, 152, 219, 0.6);
    animation: academicFloat 18s ease-in-out infinite;
    animation-delay: 11s;
}

/* 代码符号 */
.particle-code-1 {
    top: 20%;
    left: 85%;
    font-size: 14px;
    color: rgba(52, 152, 219, 0.6);
    animation: academicFloat 25s ease-in-out infinite;
    animation-delay: 1s;
}

.particle-code-2 {
    top: 55%;
    right: 5%;
    font-size: 16px;
    color: rgba(46, 204, 113, 0.6);
    animation: academicFloat 18s ease-in-out infinite;
    animation-delay: 3s;
}

.particle-code-4 {
    top: 40%;
    right: 25%;
    font-size: 18px;
    color: rgba(231, 76, 60, 0.6);
    animation: academicFloat 16s ease-in-out infinite;
    animation-delay: 7s;
}

.particle-code-5 {
    top: 10%;
    left: 12%;
    font-size: 17px;
    color: rgba(46, 204, 113, 0.5);
    animation: academicFloat 23s ease-in-out infinite;
    animation-delay: 9s;
}

.particle-code-6 {
    top: 85%;
    right: 30%;
    font-size: 20px;
    color: rgba(52, 152, 219, 0.7);
    animation: academicFloat 19s ease-in-out infinite;
    animation-delay: 11s;
}

.particle-code-10 {
    top: 15%;
    left: 55%;
    font-size: 15px;
    color: rgba(231, 76, 60, 0.5);
    animation: academicFloat 18s ease-in-out infinite;
    animation-delay: 8s;
}

.particle-code-13 {
    top: 6%;
    left: 51%;
    font-size: 22px;
    color: rgba(155, 89, 182, 0.7);
    animation: academicFloat 20s ease-in-out infinite;
    animation-delay: 14s;
}

.particle-code-15 {
    top: 58%;
    left: 53%;
    font-size: 16px;
    color: rgba(46, 204, 113, 0.6);
    animation: academicFloat 23s ease-in-out infinite;
    animation-delay: 1s;
}

/* 几何符号 */
.particle-geo-1 {
    top: 30%;
    left: 15%;
    font-size: 12px;
    color: rgba(155, 89, 182, 0.4);
    animation: academicFloat 26s ease-in-out infinite;
    animation-delay: 2s;
}

.particle-geo-3 {
    top: 50%;
    left: 92%;
    font-size: 13px;
    color: rgba(52, 152, 219, 0.4);
    animation: academicFloat 21s ease-in-out infinite;
    animation-delay: 6s;
}

.particle-geo-5 {
    top: 95%;
    left: 25%;
    font-size: 15px;
    color: rgba(155, 89, 182, 0.5);
    animation: academicFloat 15s ease-in-out infinite;
    animation-delay: 10s;
}

.particle-geo-7 {
    top: 28%;
    right: 15%;
    font-size: 14px;
    color: rgba(46, 204, 113, 0.5);
    animation: academicFloat 18s ease-in-out infinite;
    animation-delay: 4s;
}

.particle-geo-9 {
    top: 58%;
    right: 11%;
    font-size: 15px;
    color: rgba(231, 76, 60, 0.5);
    animation: academicFloat 16s ease-in-out infinite;
    animation-delay: 8s;
}

.particle-geo-11 {
    top: 88%;
    right: 13%;
    font-size: 11px;
    color: rgba(46, 204, 113, 0.4);
    animation: academicFloat 24s ease-in-out infinite;
    animation-delay: 12s;
}

.particle-geo-13 {
    top: 37%;
    right: 1%;
    font-size: 12px;
    color: rgba(231, 76, 60, 0.4);
    animation: academicFloat 21s ease-in-out infinite;
    animation-delay: 1s;
}

/* 科学符号 */
.particle-sci-1 {
    top: 18%;
    left: 25%;
    font-size: 16px;
    color: rgba(46, 204, 113, 0.6);
    animation: academicFloat 22s ease-in-out infinite;
    animation-delay: 1s;
}

.particle-sci-2 {
    top: 42%;
    right: 10%;
    font-size: 14px;
    color: rgba(52, 152, 219, 0.6);
    animation: academicFloat 18s ease-in-out infinite;
    animation-delay: 3s;
}

.particle-sci-3 {
    top: 72%;
    left: 18%;
    font-size: 15px;
    color: rgba(155, 89, 182, 0.6);
    animation: academicFloat 20s ease-in-out infinite;
    animation-delay: 5s;
}

.particle-sci-4 {
    top: 88%;
    right: 8%;
    font-size: 13px;
    color: rgba(231, 76, 60, 0.6);
    animation: academicFloat 16s ease-in-out infinite;
    animation-delay: 7s;
}

.particle-sci-7 {
    top: 61%;
    left: 30%;
    font-size: 14px;
    color: rgba(52, 152, 219, 0.5);
    animation: academicFloat 21s ease-in-out infinite;
    animation-delay: 6s;
}

.particle-sci-9 {
    top: 91%;
    left: 27%;
    font-size: 17px;
    color: rgba(231, 76, 60, 0.6);
    animation: academicFloat 22s ease-in-out infinite;
    animation-delay: 10s;
}

/* 技术符号 */
.particle-tech-1 {
    top: 12%;
    right: 40%;
    font-size: 14px;
    color: rgba(52, 152, 219, 0.5);
    animation: academicFloat 25s ease-in-out infinite;
    animation-delay: 2s;
}

.particle-tech-3 {
    top: 58%;
    right: 35%;
    font-size: 16px;
    color: rgba(155, 89, 182, 0.6);
    animation: academicFloat 17s ease-in-out infinite;
    animation-delay: 6s;
}

.particle-tech-5 {
    top: 26%;
    left: 38%;
    font-size: 14px;
    color: rgba(52, 152, 219, 0.5);
    animation: academicFloat 23s ease-in-out infinite;
    animation-delay: 1s;
}

.particle-tech-9 {
    top: 86%;
    left: 40%;
    font-size: 15px;
    color: rgba(46, 204, 113, 0.6);
    animation: academicFloat 21s ease-in-out infinite;
    animation-delay: 9s;
}

/* 装饰元素 */
.particle-extra-2 {
    top: 29%;
    right: 22%;
    font-size: 11px;
    color: rgba(52, 152, 219, 0.4);
    animation: academicFloat 20s ease-in-out infinite;
    animation-delay: 4s;
}

.particle-extra-4 {
    top: 59%;
    right: 27%;
    font-size: 13px;
    color: rgba(231, 76, 60, 0.4);
    animation: academicFloat 18s ease-in-out infinite;
    animation-delay: 8s;
}

.particle-extra-6 {
    top: 89%;
    right: 33%;
    font-size: 14px;
    color: rgba(52, 152, 219, 0.5);
    animation: academicFloat 19s ease-in-out infinite;
    animation-delay: 12s;
}

@keyframes academicFloat {
    0%, 100% {
        transform: translateY(0px) translateX(0px) rotate(0deg);
        opacity: 0.7;
    }
    25% {
        transform: translateY(-20px) translateX(15px) rotate(90deg);
        opacity: 1;
    }
    50% {
        transform: translateY(-40px) translateX(-10px) rotate(180deg);
        opacity: 0.5;
    }
    75% {
        transform: translateY(-15px) translateX(20px) rotate(270deg);
        opacity: 0.8;
    }
}

/* 漂浮动画元素 */
.floating-animations {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 1;
}

/* 主内容区域 */
.main-content {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
    max-width: 900px;
    width: 90%;
    background: transparent;
    backdrop-filter: none;
    padding: 50px 40px;
    border-radius: 0;
    box-shadow: none;
    border: none;
}

.brand {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 40px;
    position: relative;
    flex-direction: row;
    gap: 15px;
}

.logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0;
    margin-bottom: 0;
    box-shadow: 
        0 10px 30px rgba(46, 204, 113, 0.4),
        0 0 0 5px rgba(46, 204, 113, 0.15);
    position: relative;
    overflow: hidden;
}

.logo::before {
    content: '🐸';
    font-size: 36px;
    position: relative;
    z-index: 2;
}

.brand-name {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    letter-spacing: -0.5px;
    margin-bottom: 0;
}

.main-title {
    font-size: 56px;
    font-weight: 900;
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 50%, #2c3e50 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    letter-spacing: -1px;
    margin-bottom: 35px;
    text-align: center;
}

.feature-highlights {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 35px;
    padding: 0 20px;
}

.highlight-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    background: linear-gradient(135deg, rgba(46, 204, 113, 0.08) 0%, rgba(52, 152, 219, 0.08) 100%);
    border-radius: 12px;
    border: 1px solid rgba(46, 204, 113, 0.2);
    transition: all 0.3s ease;
}

.highlight-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(46, 204, 113, 0.15);
    border-color: rgba(46, 204, 113, 0.3);
}

.highlight-icon {
    font-size: 18px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
    border-radius: 50%;
    box-shadow: 0 3px 8px rgba(46, 204, 113, 0.3);
}

.highlight-text {
    font-size: 15px;
    font-weight: 600;
    color: #2c3e50;
    letter-spacing: 0.2px;
}

.description {
    font-size: 18px;
    color: #34495e;
    line-height: 1.8;
    margin-bottom: 40px;
    letter-spacing: 0.2px;
    font-weight: 500;
    text-align: center;
    padding: 0 20px;
}

.services {
    margin-bottom: 40px;
    text-align: center;
}

.buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 32px;
}

.btn {
    padding: 18px 40px;
    border: none;
    border-radius: 30px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-decoration: none;
    display: inline-block;
    text-align: center;
    min-width: 180px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white;
    box-shadow: 
        0 8px 25px rgba(231, 76, 60, 0.3),
        0 0 0 1px rgba(231, 76, 60, 0.1);
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 
        0 15px 35px rgba(231, 76, 60, 0.4),
        0 5px 15px rgba(231, 76, 60, 0.2);
}

.platforms {
    background: transparent;
    border: none;
    text-align: center;
}

.platforms-title {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.platforms-title::before {
    content: '🔗';
    font-size: 18px;
}

.platform-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.platform-tag {
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.1) 0%, rgba(46, 204, 113, 0.1) 100%);
    color: #2c5aa0;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 15px;
    font-weight: 700;
    border: 1px solid rgba(52, 152, 219, 0.2);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.platform-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(52, 152, 219, 0.1) 50%, transparent 100%);
    transition: left 0.4s ease;
}

.platform-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(52, 152, 219, 0.2);
    border-color: rgba(52, 152, 219, 0.4);
}

.platform-tag:hover::before {
    left: 100%;
}

/* 隐藏不需要的漂浮元素 */
.floating-satellite,
.floating-feature-label,
.floating-stat-item,
.floating-progress-ring,
.floating-bio-elements,
.floating-particles {
    display: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-content {
        position: relative;
        top: auto;
        left: auto;
        transform: none;
        max-width: 100%;
        width: 100%;
        padding: 15px 15px 30px 15px;
        text-align: center;
        margin: 10vh auto 0 auto;
        min-height: auto;
    }
    
    .brand {
        flex-direction: column;
        gap: 8px;
        margin-bottom: 20px;
        justify-content: center;
        align-items: center;
    }
    
    .logo {
        width: 50px;
        height: 50px;
    }
    
    .logo::before {
        font-size: 24px;
    }
    
    .brand-name {
        font-size: 28px;
    }
    
    .main-title {
        font-size: 28px;
        margin-bottom: 20px;
        line-height: 1.3;
    }
    
    .feature-highlights {
        grid-template-columns: repeat(4, 1fr);
        gap: 4px;
        margin-bottom: 20px;
        padding: 0 2px;
    }
    
    .highlight-item {
        padding: 6px 3px;
        border-radius: 6px;
        flex-direction: column;
        text-align: center;
        min-height: 60px;
        justify-content: center;
    }
    
    .highlight-icon {
        width: 18px;
        height: 18px;
        font-size: 11px;
        margin-bottom: 3px;
        margin-right: 0;
    }
    
    .highlight-text {
        font-size: 10px;
        line-height: 1.1;
        font-weight: 600;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .description {
        font-size: 15px;
        margin-bottom: 25px;
        padding: 0 5px;
        line-height: 1.6;
    }
    
    .btn {
        padding: 14px 28px;
        font-size: 16px;
        min-width: 140px;
    }
    
    .platforms-title {
        font-size: 17px;
        margin-bottom: 15px;
    }
    
    .platform-tag {
        font-size: 12px;
        padding: 6px 12px;
    }
    
    .academic-particles {
        display: none;
    }
    
    /* 隐藏装饰元素以减少干扰 */
    .bg-decorations {
        display: none;
    }
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
    .main-content {
        padding: 10px 10px 25px 10px;
        margin: 8vh auto 0 auto;
    }
    
    .brand {
        margin-bottom: 15px;
        justify-content: center;
        align-items: center;
    }
    
    .logo {
        width: 45px;
        height: 45px;
    }
    
    .logo::before {
        font-size: 22px;
    }
    
    .brand-name {
        font-size: 24px;
    }
    
    .main-title {
        font-size: 24px;
        margin-bottom: 15px;
        line-height: 1.3;
    }
    
    .feature-highlights {
        grid-template-columns: repeat(4, 1fr);
        gap: 3px;
        padding: 0 2px;
        margin-bottom: 15px;
    }
    
    .highlight-item {
        padding: 5px 2px;
        min-height: 50px;
        flex-direction: column;
        text-align: center;
        gap: 2px;
    }
    
    .highlight-icon {
        width: 16px;
        height: 16px;
        font-size: 10px;
        margin-bottom: 2px;
        margin-right: 0;
        flex-shrink: 0;
    }
    
    .highlight-text {
        font-size: 9px;
        line-height: 1.1;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .description {
        font-size: 14px;
        margin-bottom: 20px;
        line-height: 1.5;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 15px;
        min-width: 120px;
    }
    
    .platforms-title {
        font-size: 16px;
        margin-bottom: 12px;
    }
    
    .platform-tags {
        gap: 8px;
    }
    
    .platform-tag {
        font-size: 11px;
        padding: 5px 10px;
    }
}

/* 非常小的屏幕 (小于360px) */
@media (max-width: 360px) {
    .main-content {
        padding: 8px 8px 20px 8px;
        margin: 6vh auto 0 auto;
    }
    
    .brand-name {
        font-size: 20px;
    }
    
    .main-title {
        font-size: 20px;
        margin-bottom: 12px;
    }
    
    .feature-highlights {
        grid-template-columns: repeat(4, 1fr);
        gap: 2px;
        margin-bottom: 12px;
        padding: 0 1px;
    }
    
    .highlight-item {
        padding: 4px 1px;
        min-height: 45px;
    }
    
    .highlight-icon {
        width: 14px;
        height: 14px;
        font-size: 9px;
    }
    
    .highlight-text {
        font-size: 8px;
        line-height: 1.0;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .description {
        font-size: 13px;
        margin-bottom: 15px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
        min-width: 100px;
    }
}