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

html, body {
    overflow-x: hidden;
    overflow-y: auto;
    width: 100%;
    height: 100%;
}

/* 隐藏滚动条 */
::-webkit-scrollbar {
    display: none;
}

/* Firefox */
html {
    scrollbar-width: none;
}

/* IE 和旧版 Edge */
body {
    -ms-overflow-style: none;
}

body {
    background: #ffffff;
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    color: #333333;
    min-height: 100vh;
    position: relative;
    opacity: 0;
    animation: fadeInBody 1.5s ease-out forwards;
}

/* 动态星系背景 */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
    opacity: 0;
    animation: fadeInBody 2s ease-out 0.5s forwards;
}

/* 星空底层 - 小星星（远层） */
.bg-grid::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 300%;
    height: 300%;
    background-image: 
        radial-gradient(1px 1px at 10% 20%, rgba(255, 255, 255, 0.5) 0%, transparent 100%),
        radial-gradient(1px 1px at 30% 60%, rgba(255, 255, 255, 0.4) 0%, transparent 100%),
        radial-gradient(1px 1px at 50% 10%, rgba(255, 200, 255, 0.5) 0%, transparent 100%),
        radial-gradient(1px 1px at 70% 40%, rgba(255, 255, 255, 0.3) 0%, transparent 100%),
        radial-gradient(1px 1px at 90% 80%, rgba(200, 200, 255, 0.4) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 15% 70%, rgba(255, 255, 255, 0.6) 0%, transparent 100%),
        radial-gradient(1px 1px at 45% 30%, rgba(255, 150, 255, 0.3) 0%, transparent 100%),
        radial-gradient(1px 1px at 65% 90%, rgba(200, 200, 255, 0.4) 0%, transparent 100%),
        radial-gradient(1px 1px at 85% 15%, rgba(255, 255, 255, 0.5) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 25% 45%, rgba(255, 120, 200, 0.3) 0%, transparent 100%),
        radial-gradient(1px 1px at 55% 75%, rgba(255, 255, 255, 0.4) 0%, transparent 100%),
        radial-gradient(1px 1px at 75% 25%, rgba(200, 180, 255, 0.3) 0%, transparent 100%),
        radial-gradient(1px 1px at 95% 55%, rgba(255, 255, 255, 0.4) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 5% 85%, rgba(255, 100, 200, 0.5) 0%, transparent 100%),
        radial-gradient(1px 1px at 35% 5%, rgba(255, 255, 255, 0.3) 0%, transparent 100%),
        radial-gradient(1px 1px at 60% 65%, rgba(255, 255, 255, 0.5) 0%, transparent 100%),
        radial-gradient(1px 1px at 80% 35%, rgba(200, 220, 255, 0.4) 0%, transparent 100%),
        radial-gradient(1.5px 1.5px at 40% 55%, rgba(255, 180, 255, 0.4) 0%, transparent 100%),
        radial-gradient(1px 1px at 20% 15%, rgba(255, 255, 255, 0.3) 0%, transparent 100%),
        radial-gradient(1px 1px at 88% 88%, rgba(255, 200, 200, 0.4) 0%, transparent 100%);
    background-size: 200px 200px;
    animation: starDrift 60s linear infinite;
    opacity: 0.7;
}

/* 星空中层 - 较大星星 */
.bg-grid::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    background-image: 
        radial-gradient(2px 2px at 8% 25%, rgba(255, 200, 255, 0.7) 0%, transparent 100%),
        radial-gradient(2px 2px at 28% 55%, rgba(255, 255, 255, 0.6) 0%, transparent 100%),
        radial-gradient(2.5px 2.5px at 48% 15%, rgba(255, 150, 255, 0.7) 0%, transparent 100%),
        radial-gradient(2px 2px at 68% 45%, rgba(200, 200, 255, 0.6) 0%, transparent 100%),
        radial-gradient(2px 2px at 88% 75%, rgba(255, 255, 255, 0.5) 0%, transparent 100%),
        radial-gradient(2.5px 2.5px at 18% 65%, rgba(255, 100, 200, 0.6) 0%, transparent 100%),
        radial-gradient(2px 2px at 38% 85%, rgba(255, 255, 255, 0.5) 0%, transparent 100%),
        radial-gradient(2px 2px at 58% 5%, rgba(200, 180, 255, 0.6) 0%, transparent 100%),
        radial-gradient(2.5px 2.5px at 78% 35%, rgba(255, 120, 200, 0.5) 0%, transparent 100%),
        radial-gradient(2px 2px at 98% 95%, rgba(255, 255, 255, 0.6) 0%, transparent 100%);
    background-size: 350px 350px;
    animation: starDrift 35s linear infinite reverse;
    opacity: 0.5;
}

/* 星云层 - 彩色光晕 */
.galaxy-nebula {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    opacity: 0.4;
}

.galaxy-nebula-1 {
    width: 600px;
    height: 600px;
    top: 10%;
    left: 5%;
    background: radial-gradient(circle, rgba(255, 80, 200, 0.25) 0%, transparent 70%);
    animation: nebulaFloat 20s ease-in-out infinite alternate;
}

.galaxy-nebula-2 {
    width: 500px;
    height: 500px;
    bottom: 5%;
    right: 10%;
    background: radial-gradient(circle, rgba(100, 80, 255, 0.2) 0%, transparent 70%);
    animation: nebulaFloat 25s ease-in-out infinite alternate-reverse;
}

.galaxy-nebula-3 {
    width: 400px;
    height: 400px;
    top: 40%;
    left: 50%;
    transform: translateX(-50%);
    background: radial-gradient(circle, rgba(200, 80, 255, 0.15) 0%, transparent 70%);
    animation: nebulaFloat 18s ease-in-out infinite alternate;
}

/* 银河旋臂 - 旋转光带 */
.galaxy-arm {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 800px;
    margin: -400px 0 0 -400px;
    background: conic-gradient(
        transparent 0deg,
        rgba(255, 80, 200, 0.04) 60deg,
        transparent 120deg,
        rgba(200, 80, 255, 0.04) 180deg,
        transparent 240deg,
        rgba(100, 80, 255, 0.03) 300deg,
        transparent 360deg
    );
    border-radius: 50%;
    filter: blur(40px);
    animation: galaxyRotate 40s linear infinite;
    opacity: 0.6;
}

/* 闪烁星星 */
.twinkle-star {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 6px rgba(255, 200, 255, 0.8), 0 0 15px rgba(255, 80, 200, 0.4);
    animation: starTwinkle 3s ease-in-out infinite;
    pointer-events: none;
    z-index: 5;
}

/* 暗色动态背景 */
.dynamic-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(200, 80, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 80, 180, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(100, 80, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 60% 60%, rgba(255, 60, 150, 0.08) 0%, transparent 50%);
    z-index: 2;
    pointer-events: none;
    opacity: 0;
    display: none;
    animation: bgFadeIn 2s ease 1s forwards;
}



/* ========== 炫酷艺术装饰 ========== */
/* 全息投影效果装饰 */
.holographic-grid {
    position: fixed;
    left: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 200px;
    height: 300px;
    z-index: 3;
    pointer-events: none;
    opacity: 0;
    display: none;
    animation: hologramAppear 2s ease-out 2.2s forwards;
}

.holographic-grid::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, transparent 0%, rgba(0, 255, 255, 0.1) 50%, transparent 100%),
        linear-gradient(0deg, transparent 0%, rgba(0, 255, 255, 0.1) 50%, transparent 100%);
    background-size: 30px 30px;
    filter: blur(0.5px);
    animation: gridScan 4s linear infinite;
    box-shadow: 
        0 0 60px rgba(0, 255, 255, 0.3),
        inset 0 0 30px rgba(0, 255, 255, 0.2);
    border-radius: 20px;
}

.holographic-grid::after {
    content: 'SYSTEM';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-90deg);
    font-size: 1.2rem;
    font-weight: 700;
    color: rgba(0, 255, 255, 0.6);
    letter-spacing: 10px;
    text-transform: uppercase;
    text-shadow: 
        0 0 10px rgba(0, 255, 255, 0.8),
        0 0 20px rgba(0, 255, 255, 0.4);
    opacity: 0.7;
}

/* 右侧全息装饰 */
.holographic-grid-right {
    position: fixed;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 200px;
    height: 300px;
    z-index: 3;
    pointer-events: none;
    display: none;
    opacity: 0;
    animation: hologramAppear 2s ease-out 2.2s forwards;
}

.holographic-grid-right::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, transparent 0%, rgba(255, 0, 128, 0.1) 50%, transparent 100%),
        linear-gradient(0deg, transparent 0%, rgba(255, 0, 128, 0.1) 50%, transparent 100%);
    background-size: 30px 30px;
    filter: blur(0.5px);
    animation: gridScan 4s linear infinite reverse;
    box-shadow: 
        0 0 60px rgba(255, 0, 128, 0.3),
        inset 0 0 30px rgba(255, 0, 128, 0.2);
    border-radius: 20px;
}

.holographic-grid-right::after {
    content: 'ACTIVE';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(90deg);
    font-size: 1.2rem;
    font-weight: 700;
    color: rgba(255, 0, 128, 0.6);
    letter-spacing: 10px;
    text-transform: uppercase;
    text-shadow: 
        0 0 10px rgba(255, 0, 128, 0.8),
        0 0 20px rgba(255, 0, 128, 0.4);
    opacity: 0.7;
}

/* 能量波纹 */
.energy-ripple {
    position: fixed;
    left: 10%;
    top: 30%;
    width: 120px;
    height: 120px;
    z-index: 4;
    pointer-events: none;
    opacity: 0;
    animation: energyPulse 4s ease-in-out infinite 2.4s forwards;
}

.energy-ripple::before,
.energy-ripple::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px solid;
    border-radius: 50%;
    animation: rippleEffect 3s linear infinite;
}

.energy-ripple::before {
    border-color: rgba(0, 255, 255, 0.4);
    animation-delay: 0s;
}

.energy-ripple::after {
    border-color: rgba(0, 255, 255, 0.2);
    animation-delay: 1.5s;
}

/* 右侧能量波纹 */
.energy-ripple-right {
    position: fixed;
    right: 10%;
    bottom: 30%;
    width: 120px;
    height: 120px;
    z-index: 4;
    pointer-events: none;
    opacity: 0;
    animation: energyPulse 4s ease-in-out infinite 2.4s forwards;
}

.energy-ripple-right::before,
.energy-ripple-right::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px solid;
    border-radius: 50%;
    animation: rippleEffect 3s linear infinite;
}

.energy-ripple-right::before {
    border-color: rgba(255, 0, 128, 0.4);
    animation-delay: 0s;
}

.energy-ripple-right::after {
    border-color: rgba(255, 0, 128, 0.2);
    animation-delay: 1.5s;
}

/* 悬浮数据流 */
.data-stream {
    position: fixed;
    left: 8%;
    bottom: 20%;
    width: 150px;
    height: 200px;
    z-index: 3;
    pointer-events: none;
    opacity: 0;
    animation: streamAppear 2s ease-out 2.6s forwards;
}

.data-stream::before {
    content: '';
    position: absolute;
    width: 2px;
    height: 100%;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(0, 255, 255, 0.8) 10%,
        rgba(0, 255, 255, 0.4) 50%,
        transparent 100%
    );
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
    animation: dataFlow 3s linear infinite;
}

/* 右侧数据流 */
.data-stream-right {
    position: fixed;
    right: 8%;
    top: 20%;
    width: 150px;
    height: 200px;
    z-index: 3;
    pointer-events: none;
    opacity: 0;
    animation: streamAppear 2s ease-out 2.6s forwards;
}

.data-stream-right::before {
    content: '';
    position: absolute;
    width: 2px;
    height: 100%;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(255, 0, 128, 0.8) 10%,
        rgba(255, 0, 128, 0.4) 50%,
        transparent 100%
    );
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 20px rgba(255, 0, 128, 0.5);
    animation: dataFlow 3s linear infinite reverse;
}

/* 3D旋转立方体 */
.floating-cube {
    position: fixed;
    left: 15%;
    top: 20%;
    width: 60px;
    height: 60px;
    transform-style: preserve-3d;
    z-index: 3;
    pointer-events: none;
    opacity: 0;
    animation: cubeAppear 2s ease-out 2.8s forwards;
}

.cube-face {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(0, 255, 255, 0.1);
    border: 1px solid rgba(0, 255, 255, 0.3);
    box-shadow: 
        inset 0 0 20px rgba(0, 255, 255, 0.2),
        0 0 30px rgba(0, 255, 255, 0.3);
}

.cube-front  { transform: translateZ(30px); }
.cube-back   { transform: rotateY(180deg) translateZ(30px); }
.cube-right  { transform: rotateY(90deg) translateZ(30px); }
.cube-left   { transform: rotateY(-90deg) translateZ(30px); }
.cube-top    { transform: rotateX(90deg) translateZ(30px); }
.cube-bottom { transform: rotateX(-90deg) translateZ(30px); }

/* 右侧旋转棱柱 */
.floating-prism {
    position: fixed;
    right: 15%;
    bottom: 20%;
    width: 50px;
    height: 80px;
    transform-style: preserve-3d;
    z-index: 3;
    pointer-events: none;
    opacity: 0;
    animation: prismAppear 2s ease-out 2.8s forwards;
}

.prism-face {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(255, 0, 128, 0.1);
    border: 1px solid rgba(255, 0, 128, 0.3);
    box-shadow: 
        inset 0 0 20px rgba(255, 0, 128, 0.2),
        0 0 30px rgba(255, 0, 128, 0.3);
}

.prism-front  { transform: translateZ(25px); }
.prism-back   { transform: rotateY(180deg) translateZ(25px); }
.prism-right  { transform: rotateY(60deg) translateZ(25px); }
.prism-left   { transform: rotateY(-60deg) translateZ(25px); }

/* 激光扫描线 */
.laser-scan {
    position: fixed;
    left: 0;
    top: 25%;
    width: 100%;
    height: 2px;
    z-index: 5;
    pointer-events: none;
    opacity: 0;
    animation: laserScanMove 8s linear infinite 3s forwards;
}

.laser-scan::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(0, 255, 255, 0.8),
        rgba(255, 0, 128, 0.8),
        transparent
    );
    filter: blur(1px);
    box-shadow: 
        0 0 30px rgba(0, 255, 255, 0.6),
        0 0 60px rgba(255, 0, 128, 0.4);
}

/* 漂浮粒子群 */
.particle-field-left {
    position: fixed;
    left: 12%;
    top: 40%;
    width: 100px;
    height: 200px;
    z-index: 3;
    pointer-events: none;
    opacity: 0;
    animation: particleAppear 2s ease-out 3s forwards;
}

.particle-field-right {
    position: fixed;
    right: 12%;
    bottom: 40%;
    width: 100px;
    height: 200px;
    z-index: 3;
    pointer-events: none;
    opacity: 0;
    display: none;
    animation: particleAppear 2s ease-out 3s forwards;
}

/* ========== 主内容容器 ========== */
.container {
    position: relative;
    width: 100%;
    min-height: 100vh;
    z-index: 10;
    opacity: 0;
    transform: translateY(40px);
    animation: slideUpContent 1s ease-out 2s forwards;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding: 40px 20px 80px;
}

.main-content {
    position: relative;
    max-width: 1200px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 60px;
    z-index: 11;
    padding: 20px;
    margin-top: 40px;
    margin-bottom: 60px;
}

.title-section {
    text-align: center;
    margin-bottom: 20px;
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    animation: slideUpElement 0.8s ease-out 2.2s forwards;
}

.subtitle {
    font-size: 1.2rem;
    color: #c8a8d0;
    margin-bottom: 20px;
    letter-spacing: 3px;
    text-transform: uppercase;
    font-weight: 600;
    opacity: 0;
    transform: translateY(20px);
    animation: slideUpElement 0.6s ease-out 2.3s forwards;
    text-shadow: 0 0 10px rgba(200, 80, 255, 0.25);
}

.glowing-text-container {
    position: relative;
    margin-bottom: 10px;
    width: 100%;
    display: flex;
    justify-content: center;
    opacity: 0;
    transform: translateY(40px) scale(0.9);
    animation: slideUpScaleElement 0.9s ease-out 2.2s forwards;
}

.glowing-text {
    font-size: 6rem;
    font-weight: 900;
    color: #f0e0f5;
    text-shadow: 
        0 0 10px rgba(255, 80, 200, 0.8),
        0 0 20px rgba(255, 80, 200, 0.6),
        0 0 30px rgba(200, 80, 255, 0.5),
        0 0 40px rgba(200, 80, 255, 0.4),
        0 0 70px rgba(255, 60, 180, 0.3),
        0 0 80px rgba(100, 80, 255, 0.2);
    letter-spacing: 10px;
    text-transform: uppercase;
    animation: glowPulse 4s infinite alternate 2.5s, floatText 8s ease-in-out infinite 2.5s;
    position: relative;
    text-align: center;
}

.text-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 250px;
    background: radial-gradient(circle, rgba(255, 80, 200, 0.15) 0%, transparent 70%);
    filter: blur(60px);
    z-index: -1;
    opacity: 0;
    animation: glowMove 10s ease-in-out infinite alternate 2.5s, fadeInGlow 0.8s ease-out 2.4s forwards;
}

/* ========== 功能卡片 ========== */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
    max-width: 800px;
    width: 100%;
    opacity: 0;
    transform: translateY(30px);
    animation: slideUpElement 0.8s ease-out 2.4s forwards;
}

.feature {
    background: #ffffff;
    border-radius: 24px;
    padding: 30px 25px;
    min-height: 300px;
    text-align: center;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid #f0f0f0;
    position: relative;
    cursor: pointer;
    overflow: hidden;
    z-index: 2;
    opacity: 1;
    transform: translateY(0);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* 悬停效果由JavaScript处理 */
.feature:hover {
    background: rgba(35, 20, 55, 0.6);
    backdrop-filter: blur(35px);
    -webkit-backdrop-filter: blur(35px);
    border: 1px solid rgba(255, 80, 200, 0.25);
    box-shadow: 
        0 25px 60px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(200, 80, 255, 0.06),
        inset 0 1px 0 rgba(255, 80, 200, 0.15);
}

.feature:hover .feature-icon {
    transform: scale(1.1) rotateY(180deg);
}

.feature:hover .feature-title {
    color: #ff69b4;
}

.feature:hover .feature-desc {
    color: #e0c8e0;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
    transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    transform-origin: center center;
    position: relative;
}

.feature-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(255, 80, 200, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.feature-title {
    font-weight: 700;
    margin-bottom: 15px;
    color: #c8a8d8;
    transition: all 0.1s ease;
    font-size: 1.4rem;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    position: relative;
    display: inline-block;
}

.feature-title::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #ff69b4, #c880ff);
    transition: width 0.3s ease;
}

.feature:hover .feature-title::after {
    width: 100%;
}

.feature-desc {
    font-size: 1rem;
    color: #9a80a8;
    line-height: 1.6;
    transition: all 0.1s ease;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

/* ========== 现代化按钮设计 ========== */
.download-section {
    position: relative;
    margin-top: 40px;
    margin-bottom: 100px;
    opacity: 0;
    transform: translateY(40px);
    animation: slideUpElement 0.8s ease-out 2.6s forwards;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.buttons-grid {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    width: 100%;
    max-width: 1100px;
    margin-bottom: 30px;
}

.primary-button-area {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

/* 修改 secondary-buttons-area 为 3 列居中 */
.secondary-buttons-area {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    width: 100%;
    max-width: 1100px;
    justify-content: center;
}

.modern-btn-primary {
    position: relative;
    padding: 22px 50px;
    background: #ffffff;
    color: #333;
    border: 1px solid #e0e0e0;
    border-radius: 16px;
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
    width: 380px;
    max-width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    text-align: center;
    text-transform: uppercase;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.modern-btn-secondary {
    position: relative;
    padding: 18px 30px;
    background: rgba(25, 15, 40, 0.5);
    color: #b898c8;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    text-align: center;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(200, 120, 255, 0.1);
    box-shadow: 
        0 8px 25px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(200, 120, 255, 0.08);
}

.modern-btn-primary:hover,
.modern-btn-secondary:hover {
    transform: translateY(-4px);
    box-shadow: 
        0 15px 35px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 80, 200, 0.25);
}

/* 主按钮悬停效果 */
.modern-btn-primary:hover {
    background: rgba(255, 80, 200, 0.2);
    color: #ff88cc;
    border-color: rgba(255, 80, 200, 0.5);
    box-shadow: 
        0 15px 35px rgba(255, 80, 200, 0.2),
        0 0 40px rgba(255, 80, 200, 0.1),
        inset 0 1px 0 rgba(255, 80, 200, 0.25);
}

/* 卡网购买按钮 (第1个) - 橙色 */
.modern-btn-secondary:nth-child(1):hover {
    background: rgba(255, 153, 0, 0.2);
    color: #ff8c00;
    border-color: rgba(255, 153, 0, 0.3);
    box-shadow: 
        0 15px 35px rgba(255, 153, 0, 0.12),
        inset 0 1px 0 rgba(255, 153, 0, 0.15);
}

/* 问题指南按钮 (第2个) - 绿色 */
.modern-btn-secondary:nth-child(2):hover {
    background: rgba(50, 205, 50, 0.2);
    color: #32cd32;
    border-color: rgba(50, 205, 50, 0.3);
    box-shadow: 
        0 15px 35px rgba(50, 205, 50, 0.12),
        inset 0 1px 0 rgba(50, 205, 50, 0.15);
}

/* 更新日志按钮 (第3个) - 紫色 */
.modern-btn-secondary:nth-child(3):hover {
    background: rgba(138, 43, 226, 0.2);
    color: #a855f7;
    border-color: rgba(138, 43, 226, 0.3);
    box-shadow: 
        0 15px 35px rgba(138, 43, 226, 0.12),
        inset 0 1px 0 rgba(138, 43, 226, 0.15);
}

/* 签名工具按钮 (第4个) - 粉色 - 新增 */
.modern-btn-secondary:nth-child(4) .btn-icon {
    color: #f472b6; /* 粉色图标 */
}

.modern-btn-secondary:nth-child(4):hover {
    background: rgba(244, 114, 182, 0.2); /* 粉色背景 */
    color: #f472b6;
    border-color: rgba(244, 114, 182, 0.3);
    box-shadow: 
        0 15px 35px rgba(244, 114, 182, 0.12),
        inset 0 1px 0 rgba(244, 114, 182, 0.15);
}

.modern-btn-primary:active,
.modern-btn-secondary:active {
    transform: translateY(-1px);
    transition: all 0.1s ease;
}

.modern-btn-primary::before,
.modern-btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, 
        rgba(255, 80, 200, 0.5) 0%,
        rgba(200, 80, 255, 0.35) 50%, 
        rgba(100, 80, 255, 0) 100%);
    -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;
    pointer-events: none;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.modern-btn-primary:hover::before {
    opacity: 1;
    background: linear-gradient(135deg, 
        rgba(255, 80, 200, 0.7) 0%, 
        rgba(200, 80, 255, 0.5) 50%, 
        rgba(100, 80, 255, 0) 100%);
}

.modern-btn-secondary::before {
    background: linear-gradient(135deg, 
        rgba(200, 120, 255, 0.25) 0%, 
        rgba(255, 80, 200, 0.15) 50%, 
        rgba(200, 120, 255, 0) 100%);
}

.modern-btn-secondary:nth-child(1):hover::before {
    background: linear-gradient(135deg, 
        rgba(255, 153, 0, 0.5) 0%, 
        rgba(255, 180, 50, 0.3) 50%, 
        rgba(255, 153, 0, 0) 100%);
}

.modern-btn-secondary:nth-child(2):hover::before {
    background: linear-gradient(135deg, 
        rgba(50, 205, 50, 0.5) 0%, 
        rgba(100, 220, 100, 0.3) 50%, 
        rgba(50, 205, 50, 0) 100%);
}

.modern-btn-secondary:nth-child(3):hover::before {
    background: linear-gradient(135deg, 
        rgba(138, 43, 226, 0.5) 0%, 
        rgba(168, 85, 247, 0.3) 50%, 
        rgba(138, 43, 226, 0) 100%);
}

.modern-btn-secondary:nth-child(4):hover::before {
    background: linear-gradient(135deg, 
        rgba(244, 114, 182, 0.5) 0%, 
        rgba(250, 150, 200, 0.3) 50%, 
        rgba(244, 114, 182, 0) 100%);
}

.modern-btn-primary::after,
.modern-btn-secondary::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 80, 200, 0.15),
        transparent
    );
    transition: left 0.7s ease;
    pointer-events: none;
    border-radius: inherit;
}

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

.modern-btn-secondary:nth-child(1)::after {
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 215, 0, 0.4),
        transparent
    );
}

.modern-btn-secondary:nth-child(2)::after {
    background: linear-gradient(
        90deg,
        transparent,
        rgba(50, 205, 50, 0.4),
        transparent
    );
}

.modern-btn-secondary:nth-child(3)::after {
    background: linear-gradient(
        90deg,
        transparent,
        rgba(138, 43, 226, 0.4),
        transparent
    );
}

.modern-btn-secondary:nth-child(4)::after {
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 105, 181, 0.4),
        transparent
    );
}

.btn-icon {
    font-size: 1.6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.modern-btn-primary .btn-icon {
    font-size: 1.8rem;
}

.modern-btn-primary .btn-icon {
    color: #ff69b4;
}

/* 按钮图标颜色 */
.modern-btn-secondary:nth-child(1) .btn-icon {
    color: #ff8c00;
}

.modern-btn-secondary:nth-child(2) .btn-icon {
    color: #32cd32;
}

.modern-btn-secondary:nth-child(3) .btn-icon {
    color: #a855f7;
}

.modern-btn-primary:hover .btn-icon,
.modern-btn-secondary:hover .btn-icon {
    transform: scale(1.1);
    animation: iconFloat 1s infinite ease-in-out;
}

.btn-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.btn-main-text {
    font-weight: 700;
}

.btn-sub-text {
    font-size: 0.8rem;
    opacity: 0.7;
    font-weight: 400;
}

.download-info {
    margin-top: 25px;
    text-align: center;
    font-size: 0.9rem;
    color: #a888b8;
    opacity: 0;
    transform: translateY(10px);
    animation: fadeUp 0.5s ease-out 2.9s forwards;
    padding: 12px 20px;
    background: rgba(200, 80, 255, 0.06);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(200, 80, 255, 0.12);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.download-info.transparent-version {
    background: rgba(25, 15, 40, 0.3) !important;
    border: 1px solid rgba(200, 120, 255, 0.1) !important;
    color: #b898c8 !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}

.download-info.transparent-version:hover {
    background: rgba(35, 20, 55, 0.4) !important;
    border-color: rgba(255, 80, 200, 0.2) !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* 页脚 */
.footer {
    position: relative;
    margin-top: 60px;
    margin-bottom: 40px;
    width: 100%;
    text-align: center;
    color: #b898c8;
    font-size: 0.9rem;
    z-index: 10;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.5s ease-out 3s forwards;
    background: rgba(25, 15, 40, 0.3);
    padding: 15px 20px;
    border-radius: 12px;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(200, 120, 255, 0.1);
}

/* ========== 动画定义 ========== */
@keyframes fadeInBody {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

/* 星空漂移 */
@keyframes starDrift {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(-33%, -33%);
    }
}

/* 星云浮动 */
@keyframes nebulaFloat {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }
    33% {
        transform: translate(30px, -40px) scale(1.08);
        opacity: 0.45;
    }
    66% {
        transform: translate(-20px, 20px) scale(0.95);
        opacity: 0.35;
    }
    100% {
        transform: translate(15px, -30px) scale(1.05);
        opacity: 0.4;
    }
}

/* 银河旋臂旋转 */
@keyframes galaxyRotate {
    0% {
        transform: translate(-50%, -50%) rotate(0deg) scale(1);
    }
    50% {
        transform: translate(-50%, -50%) rotate(180deg) scale(1.05);
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg) scale(1);
    }
}

/* 闪烁星星 */
@keyframes starTwinkle {
    0%, 100% {
        opacity: 0.3;
        transform: scale(0.8);
    }
    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

@keyframes bgFadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

@keyframes slideUpContent {
    0% { opacity: 0; transform: translateY(100px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes slideUpElement {
    0% { opacity: 0; transform: translateY(30px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes slideUpScaleElement {
    0% { opacity: 0; transform: translateY(40px) scale(0.9); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes fadeInGlow {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

@keyframes glowPulse {
    0% {
        text-shadow: 
            0 0 10px rgba(255, 80, 200, 0.8),
            0 0 20px rgba(255, 80, 200, 0.6),
            0 0 30px rgba(200, 80, 255, 0.5),
            0 0 40px rgba(200, 80, 255, 0.4),
            0 0 70px rgba(255, 60, 180, 0.3),
            0 0 80px rgba(100, 80, 255, 0.2);
    }
    100% {
        text-shadow: 
            0 0 15px rgba(200, 80, 255, 0.8),
            0 0 25px rgba(200, 80, 255, 0.6),
            0 0 35px rgba(100, 80, 255, 0.5),
            0 0 45px rgba(255, 80, 200, 0.4),
            0 0 75px rgba(255, 80, 200, 0.3),
            0 0 85px rgba(255, 60, 180, 0.2);
    }
}

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

@keyframes glowMove {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.8;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.3);
        opacity: 0.4;
    }
}

@keyframes pulse {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.3;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0) scale(1.1); }
    50% { transform: translateY(-3px) scale(1.1); }
}

@keyframes fadeUp {
    0% { opacity: 0; transform: translateY(10px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ========== 炫酷装饰动画 ========== */
@keyframes hologramAppear {
    0% { opacity: 0; transform: translateY(-50%) scale(0.8); }
    100% { opacity: 0.6; transform: translateY(-50%) scale(1); }
}

@keyframes gridScan {
    0% { opacity: 0.3; }
    50% { opacity: 0.7; }
    100% { opacity: 0.3; }
}

@keyframes energyPulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

@keyframes rippleEffect {
    0% { transform: scale(0.3); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

@keyframes streamAppear {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 0.8; transform: translateY(0); }
}

@keyframes dataFlow {
    0% { opacity: 0.3; }
    50% { opacity: 0.8; }
    100% { opacity: 0.3; }
}

@keyframes cubeAppear {
    0% { opacity: 0; transform: translateY(-50px) rotateX(90deg) rotateY(90deg); }
    100% { opacity: 0.8; transform: translateY(0) rotateX(0) rotateY(0); }
}

@keyframes prismAppear {
    0% { opacity: 0; transform: translateY(50px) rotateX(-90deg) rotateY(-90deg); }
    100% { opacity: 0.8; transform: translateY(0) rotateX(0) rotateY(0); }
}

@keyframes laserScanMove {
    0% { transform: translateX(-100%); opacity: 0; }
    10% { opacity: 0.8; }
    90% { opacity: 0.8; }
    100% { transform: translateX(100%); opacity: 0; }
}

@keyframes particleAppear {
    0% { opacity: 0; }
    100% { opacity: 0.5; }
}

@keyframes cubeRotate {
    0% { transform: rotateX(0) rotateY(0) rotateZ(0); }
    100% { transform: rotateX(360deg) rotateY(360deg) rotateZ(360deg); }
}

@keyframes prismRotate {
    0% { transform: rotateX(0) rotateY(0) rotateZ(0); }
    100% { transform: rotateX(360deg) rotateY(180deg) rotateZ(180deg); }
}

/* ========== 响应式设计 ========== */
@media (max-width: 1100px) {
    .glowing-text {
        font-size: 5rem;
    }
    
    .features {
        gap: 25px;
    }
    
    .feature {
        min-height: 280px;
        padding: 25px 20px;
    }
    
    .modern-btn-primary {
        width: 350px;
    }
    
    .secondary-buttons-area {
        max-width: 1000px;
    }
    
    .holographic-grid,
    .holographic-grid-right {
        width: 150px;
        height: 250px;
    }
    
    .energy-ripple,
    .energy-ripple-right {
        width: 100px;
        height: 100px;
    }
    
    .data-stream,
    .data-stream-right {
        width: 120px;
        height: 180px;
    }
    
    .floating-cube {
        width: 50px;
        height: 50px;
    }
    
    .floating-prism {
        width: 40px;
        height: 60px;
    }
}

@media (max-width: 950px) {
    .secondary-buttons-area {
        grid-template-columns: repeat(2, 1fr);
        max-width: 600px;
        gap: 15px;
    }
    
    .modern-btn-primary {
        width: 320px;
        padding: 20px 40px;
    }
    
    
    .holographic-grid,
    .holographic-grid-right {
        width: 120px;
        height: 200px;
    }
    
    .energy-ripple,
    .energy-ripple-right {
        width: 80px;
        height: 80px;
    }
    
    .data-stream,
    .data-stream-right {
        display: none;
    }
    
    .floating-cube,
    .floating-prism {
        transform: scale(0.8);
    }
}

@media (max-width: 768px) {
    .glowing-text {
        font-size: 3.5rem;
        letter-spacing: 6px;
    }
    
    .subtitle {
        font-size: 1rem;
        letter-spacing: 2px;
    }
    
    .features {
        gap: 20px;
    }
    
    .feature {
        min-height: 260px;
        padding: 20px 15px;
    }
    
    .modern-btn-primary {
        width: 300px;
        padding: 18px 35px;
        font-size: 1.2rem;
    }
    
    .modern-btn-secondary {
        padding: 16px 25px;
        font-size: 1rem;
    }
    
    .main-content {
        gap: 40px;
        margin-top: 20px;
    }
    
    
    .holographic-grid,
    .holographic-grid-right {
        width: 100px;
        height: 180px;
    }
    
    .energy-ripple,
    .energy-ripple-right {
        display: none;
    }
    
    .laser-scan {
        display: none;
    }
    
    .floating-cube,
    .floating-prism {
        display: none;
    }
}

@media (max-width: 600px) {
    .features {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .feature {
        width: 100%;
        max-width: 300px;
        min-height: 280px;
        padding: 25px 20px;
        margin: 0 auto;
    }
    
    .modern-btn-primary {
        width: 100%;
        max-width: 280px;
        padding: 16px 30px;
        font-size: 1.1rem;
    }
    
    .modern-btn-secondary {
        padding: 14px 20px;
        font-size: 0.95rem;
    }
    
    .glowing-text {
        font-size: 3rem;
        letter-spacing: 4px;
    }
    
    .buttons-grid {
        gap: 20px;
    }
    
    
    .holographic-grid,
    .holographic-grid-right {
        display: none;
    }
    
    .secondary-buttons-area {
        grid-template-columns: 1fr;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .glowing-text {
        font-size: 2.5rem;
        letter-spacing: 4px;
    }
    
    .main-content {
        gap: 40px;
    }
    
    .features {
        gap: 15px;
    }
    
    .feature {
        width: 100%;
        max-width: 280px;
        min-height: 260px;
        padding: 20px 15px;
    }
    
    .modern-btn-primary {
        max-width: 260px;
        padding: 14px 25px;
        font-size: 1rem;
        letter-spacing: 1.2px;
    }
    
    .modern-btn-secondary {
        padding: 12px 18px;
        font-size: 0.9rem;
        letter-spacing: 0.8px;
    }
    
    .btn-icon {
        font-size: 1.4rem;
    }
    
    .modern-btn-primary .btn-icon {
        font-size: 1.6rem;
    }
    
}

@media (max-height: 700px) {
    .main-content {
        gap: 40px;
        margin-top: 20px;
    }
    
    .glowing-text {
        font-size: 4rem;
    }
    
    .features {
        gap: 20px;
        margin-bottom: 20px;
    }
    
    .feature {
        padding: 20px 15px;
    }
}

/* ========== 弹窗动画和样式 ========== */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}
@keyframes slideDown {
    from {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* 修改primary-button-area为flex布局，容纳两个按钮 */
.primary-button-area {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

/* 加入售后群按钮样式 - 与主按钮颜色一致 */
.qq-group-button {
    color: #ff69b4 !important;
    border-color: rgba(255, 80, 200, 0.35) !important;
    background: rgba(200, 80, 255, 0.12) !important;
}

.qq-group-button:hover {
    background: rgba(255, 80, 200, 0.2) !important;
    color: #ff88cc !important;
    border-color: rgba(255, 80, 200, 0.5) !important;
    box-shadow: 
        0 15px 35px rgba(255, 80, 200, 0.2),
        0 0 40px rgba(255, 80, 200, 0.1),
        inset 0 1px 0 rgba(255, 80, 200, 0.25) !important;
}

.qq-group-button .btn-icon {
    color: #ff69b4 !important;
}

.qq-group-button::before {
    background: linear-gradient(135deg, 
        rgba(255, 80, 200, 0.5) 0%,
        rgba(200, 80, 255, 0.35) 50%, 
        rgba(100, 80, 255, 0) 100%) !important;
}

.qq-group-button:hover::before {
    background: linear-gradient(135deg, 
        rgba(255, 80, 200, 0.7) 0%, 
        rgba(200, 80, 255, 0.5) 50%, 
        rgba(100, 80, 255, 0) 100%) !important;
}

.qq-group-button::after {
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 80, 200, 0.15),
        transparent
    ) !important;
}

/* ========== 后台管理弹窗 ========== */
@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}
@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes borderFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
.admin-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(10px) saturate(140%);
    -webkit-backdrop-filter: blur(10px) saturate(140%);
    animation: modalFadeIn 0.2s ease-out;
}
.admin-modal.active {
    display: flex;
}
.admin-container-wrapper {
    position: relative;
    padding: 1px;
    border-radius: 24px;
    background: linear-gradient(90deg, 
        #ff6b6b, #feca57, #48dbfb, #ff9ff3, 
        #54a0ff, #5f27cd, #00d2d3, #ff6b6b);
    background-size: 300% 300%;
    animation: borderFlow 4s ease infinite;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}
.admin-container {
    background: #ffffff;
    border-radius: 22px;
    padding: 32px;
    width: 90%;
    max-width: 420px;
    animation: modalSlideIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.admin-title {
    color: #1e293b;
    font-size: 22px;
    margin-bottom: 28px;
    text-align: center;
    font-weight: 700;
    letter-spacing: -0.3px;
}
.admin-input-group {
    margin-bottom: 22px;
}
.admin-label {
    color: #64748b;
    font-size: 13px;
    margin-bottom: 10px;
    display: block;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.admin-input {
    width: 100%;
    padding: 16px 18px;
    background: #f1f5f9;
    border: 1.5px solid #e2e8f0;
    border-radius: 14px;
    color: #1e293b;
    font-size: 15px;
    outline: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
.admin-input::placeholder {
    color: #94a3b8;
}
.admin-input:focus {
    border-color: #667eea;
    background: #fff;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
}
.admin-btn {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 14px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    letter-spacing: 0.2px;
}
.admin-btn-primary {
    background: #1e293b;
    color: #fff;
    box-shadow: 0 4px 14px rgba(30, 41, 59, 0.2);
}
.admin-btn-primary:hover {
    background: #334155;
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(30, 41, 59, 0.3);
}
.admin-btn-primary:active {
    transform: translateY(0);
}
.admin-btn-secondary {
    background: #f1f5f9;
    color: #475569;
    margin-top: 10px;
    border: 1px solid #e2e8f0;
}
.admin-btn-secondary:hover {
    background: #e2e8f0;
}
.admin-message {
    margin-top: 18px;
    padding: 14px 16px;
    border-radius: 12px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    display: none;
    border: 1px solid transparent;
}
.admin-message.error {
    background: #fef2f2;
    color: #dc2626;
    border-color: #fecaca;
    display: block;
}
.admin-message.success {
    background: #f0fdf4;
    color: #16a34a;
    border-color: #bbf7d0;
    display: block;
}