/* 全局样式 - 更明亮的颜色 */
:root {
    --primary-color: #4db8ff;
    --secondary-color: #1e9bff;
    --accent-color: #00d9ff;
    --accent2-color: #7b68ee;
    --dark-color: #1a3a5f;
    --light-color: #f8fbff;
    --card-bg: rgba(255, 255, 255, 0.12);
    --card-border: rgba(255, 255, 255, 0.2);
    --gradient-start: #4db8ff;
    --gradient-end: #1e9bff;
    --gradient-tech: linear-gradient(135deg, #4db8ff 0%, #7b68ee 50%, #1e9bff 100%);
}

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

body {
    font-family: 'Exo 2', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0a192f 0%, #1a3a5f 50%, #0a192f 100%);
    color: var(--light-color);
    min-height: 100vh;
    background-attachment: fixed;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 - 更科技感 */
.navbar {
    background: rgba(26, 58, 95, 0.95);
    backdrop-filter: blur(15px);
    padding: 1.2rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    border-bottom: 1px solid rgba(77, 184, 255, 0.3);
}

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

.logo {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 15px;
    text-shadow: 0 0 20px rgba(0, 217, 255, 0.5);
    transition: all 0.3s ease;
}

.logo:hover {
    transform: translateY(-2px);
    text-shadow: 0 0 30px rgba(0, 217, 255, 0.8);
}

.logo i {
    font-size: 2.5rem;
    filter: drop-shadow(0 0 10px rgba(0, 217, 255, 0.5));
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--light-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.nav-links a:before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-links a:hover:before {
    width: 80%;
}

.nav-links a:hover {
    color: var(--accent-color);
    background: rgba(77, 184, 255, 0.1);
}

.nav-links a.active {
    color: var(--accent-color);
    background: rgba(77, 184, 255, 0.15);
    box-shadow: 0 0 20px rgba(77, 184, 255, 0.3);
}

.nav-links a.active:before {
    width: 100%;
}

/* 管理员团队区域 - 在主体内容上方 */
.admin-team-section {
    padding: 80px 0 40px;
}

.admin-team-section h2 {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 50px;
    background: var(--gradient-tech);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.admin-team-section h2:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-tech);
    border-radius: 2px;
}

.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.admin-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    transition: all 0.4s ease;
    border: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
}

.admin-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: 0.5s;
}

.admin-card:hover:before {
    left: 100%;
}

.admin-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 30px rgba(77, 184, 255, 0.3);
    border-color: rgba(77, 184, 255, 0.5);
}

.admin-card i {
    font-size: 3.5rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(0, 217, 255, 0.5));
}

.admin-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--light-color);
}

.admin-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
}

.admin-card .admin-role {
    display: inline-block;
    padding: 5px 15px;
    background: linear-gradient(45deg, var(--accent-color), var(--accent2-color));
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-top: 10px;
    font-weight: 600;
}

/* 主页英雄区域 - 更现代 */
.hero {
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero:before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1200px;
    height: 1200px;
    background: radial-gradient(circle, rgba(77, 184, 255, 0.1) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    z-index: -1;
}

.hero h1 {
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(45deg, var(--accent-color), var(--primary-color), var(--accent2-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 5px 25px rgba(0, 0, 0, 0.3);
    animation: gradientShift 8s ease infinite;
    background-size: 200% 200%;
}

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

.hero .slogan {
    font-size: 1.8rem;
    color: var(--light-color);
    margin-bottom: 2.5rem;
    font-weight: 300;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero .version {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    display: inline-block;
    padding: 10px 25px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 30px;
    backdrop-filter: blur(5px);
}

/* 复制地址区域 - 更现代化 */
.copy-area {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 25px;
    margin: 30px auto;
    max-width: 600px;
    display: flex;
    gap: 15px;
    border: 1px solid var(--card-border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.copy-input {
    flex: 1;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(77, 184, 255, 0.3);
    border-radius: 10px;
    color: white;
    font-size: 1.1rem;
    font-family: 'Orbitron', monospace;
    transition: all 0.3s ease;
}

.copy-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 20px rgba(77, 184, 255, 0.3);
}

/* 按钮样式 - 更新 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 40px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1.1rem;
    border: none;
    cursor: pointer;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

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

.btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3), 0 0 30px rgba(77, 184, 255, 0.4);
}

.btn-secondary {
    background: linear-gradient(45deg, var(--accent2-color), #5d4fdb);
}

.btn-secondary:hover {
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3), 0 0 30px rgba(123, 104, 238, 0.4);
}

.action-buttons {
    display: flex;
    gap: 25px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 40px;
}

/* 服务器特色卡片 */
.server-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin: 60px 0;
}

.info-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s ease;
    border: 1px solid var(--card-border);
    position: relative;
    overflow: hidden;
}

.info-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-tech);
}

.info-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    border-color: rgba(77, 184, 255, 0.5);
}

.info-card i {
    font-size: 4rem;
    color: var(--accent-color);
    margin-bottom: 25px;
    filter: drop-shadow(0 0 15px rgba(0, 217, 255, 0.5));
}

.info-card h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--light-color);
    font-weight: 700;
}

.info-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
    line-height: 1.6;
}

/* 特色内容区域 */
.featured-content {
    padding: 80px 0;
}

.featured-content h2 {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 60px;
    background: var(--gradient-tech);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    position: relative;
}

.featured-content h2:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 4px;
    background: var(--gradient-tech);
    border-radius: 2px;
}

.feature-category {
    margin-bottom: 80px;
}

.category-title {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
}

.category-title i {
    font-size: 3rem;
    color: var(--accent-color);
    filter: drop-shadow(0 0 10px rgba(0, 217, 255, 0.5));
}

.category-title h3 {
    font-size: 2.5rem;
    color: var(--light-color);
    font-weight: 700;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.content-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s ease;
    border: 1px solid var(--card-border);
    position: relative;
}

.content-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(77, 184, 255, 0.5);
}

.content-header {
    background: linear-gradient(45deg, rgba(26, 58, 95, 0.8), rgba(77, 184, 255, 0.3));
    padding: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--card-border);
}

.content-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

.player-count {
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.95rem;
    box-shadow: 0 5px 15px rgba(77, 184, 255, 0.3);
}

.content-body {
    padding: 30px;
}

.content-body p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.content-features {
    list-style: none;
    margin-top: 20px;
}

.content-features li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    gap: 10px;
}

.content-features li i {
    color: var(--accent-color);
    font-size: 1.2rem;
}

/* 图片轮播图 */
.slider-section {
    padding: 80px 0;
}

.slider-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--card-border);
}

.slider {
    display: flex;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    height: 500px;
}

.slide {
    min-width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.slide:hover img {
    transform: scale(1.05);
}

.slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: 30px;
    color: white;
    transform: translateY(100%);
    transition: transform 0.5s ease;
}

.slide:hover .slide-caption {
    transform: translateY(0);
}

.slide-caption h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: var(--accent-color);
}

.slide-caption p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
}

.slider-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    transform: translateY(-50%);
    z-index: 10;
}

.slider-btn {
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.slider-btn:hover {
    background: rgba(77, 184, 255, 0.8);
    border-color: var(--accent-color);
    transform: scale(1.1);
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: var(--accent-color);
    transform: scale(1.3);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.5);
}

/* 页脚 - 优化 */
.footer {
    background: linear-gradient(180deg, rgba(10, 25, 47, 0.95) 0%, rgba(26, 58, 95, 0.95) 100%);
    padding: 70px 0 30px;
    margin-top: 100px;
    border-top: 1px solid rgba(77, 184, 255, 0.3);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
}

.footer-section h3 {
    color: var(--accent-color);
    font-size: 1.8rem;
    margin-bottom: 25px;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.footer-section h3:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-tech);
    border-radius: 2px;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

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

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-links a:hover {
    color: var(--accent-color);
    transform: translateX(10px);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 1rem;
}

/* Toast提示 */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 20px 30px;
    border-radius: 12px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    display: flex;
    align-items: center;
    gap: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast i {
    font-size: 1.5rem;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.5));
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}

@media (max-width: 992px) {
    .hero h1 {
        font-size: 3.5rem;
    }
    
    .admin-grid,
    .content-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .slider {
        height: 400px;
    }
}

@media (max-width: 768px) {
    .navbar-container {
        flex-direction: column;
        gap: 20px;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero .slogan {
        font-size: 1.5rem;
    }
    
    .admin-team-section h2,
    .featured-content h2 {
        font-size: 2.5rem;
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .copy-area {
        flex-direction: column;
    }
    
    .slider {
        height: 300px;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero .slogan {
        font-size: 1.3rem;
    }
    
    .admin-team-section h2,
    .featured-content h2 {
        font-size: 2rem;
    }
    
    .info-card,
    .content-card {
        padding: 30px 20px;
    }
    
    .slider-btn {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

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

.fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

/* 进度条 */
.progress-container {
    margin: 20px 0;
}

.progress-bar {
    height: 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-tech);
    border-radius: 6px;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.progress-fill:after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background-image: linear-gradient(
        -45deg,
        rgba(255, 255, 255, 0.2) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0.2) 75%,
        transparent 75%,
        transparent
    );
    background-size: 50px 50px;
    animation: moveStripes 2s linear infinite;
}

@keyframes moveStripes {
    0% { background-position: 0 0; }
    100% { background-position: 50px 0; }
}

/* 粒子背景效果 */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.particle {
    position: absolute;
    background: rgba(77, 184, 255, 0.1);
    border-radius: 50%;
    animation: float 15s infinite linear;
}

@keyframes float {
    0% { transform: translateY(0) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-1000px) rotate(720deg); opacity: 0; }
}



















/* ============================================
   表单页面专用样式
============================================ */

/* 表单容器 */
.auth-container {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.auth-card {
    background: var(--card-bg);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 50px;
    width: 100%;
    max-width: 500px;
    border: 1px solid var(--card-border);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.auth-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-tech);
    z-index: 2;
}

.auth-header {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.auth-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    background: var(--gradient-tech);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 700;
}

.auth-header p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.1rem;
}

/* 表单样式 */
.auth-form {
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-label {
    display: block;
    margin-bottom: 10px;
    color: var(--light-color);
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-label i {
    color: var(--accent-color);
    font-size: 1.2rem;
}

.form-input {
    width: 100%;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--light-color);
    font-size: 1.1rem;
    font-family: 'Exo 2', sans-serif;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 4px rgba(77, 184, 255, 0.1);
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

/* 密码强度指示器 */
.password-strength {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
    position: relative;
}

.strength-bar {
    height: 100%;
    width: 0;
    border-radius: 2px;
    transition: width 0.3s ease;
}

.strength-weak { background: #e74c3c; }
.strength-medium { background: #f39c12; }
.strength-strong { background: #2ecc71; }

/* 表单按钮 */
.auth-btn {
    width: 100%;
    padding: 18px;
    background: var(--gradient-tech);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 10px;
}

.auth-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

/* 表单底部链接 */
.auth-footer {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

.auth-footer a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.auth-footer a:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .auth-card {
        padding: 40px 30px;
    }
    
    .auth-header h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 576px) {
    .auth-card {
        padding: 30px 20px;
    }
    
    .auth-header h2 {
        font-size: 2rem;
    }
    
    .form-input {
        padding: 14px 16px;
        font-size: 1rem;
    }
    
    .auth-btn {
        padding: 16px;
        font-size: 1.1rem;
    }
}