/* 经典云网盘系统 - 主样式文件 */

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
}

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

/* 头部样式 */
.header {
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.header:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 300;
}

.logo i {
    font-size: 2rem;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 300;
}

.nav {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
}

.user-menu {
    position: relative;
}

.user-name {
    cursor: pointer;
    padding: 8px 16px;
    border-radius: 6px;
    transition: background-color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.user-name:hover {
    background: rgba(255, 255, 255, 0.1);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.user-menu:hover .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: #333;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.dropdown-link:hover {
    background: #f8f9fa;
}

.dropdown-link:first-child {
    border-radius: 8px 8px 0 0;
}

.dropdown-link:last-child {
    border-radius: 0 0 8px 8px;
}

/* 主要内容区域 */
.main {
    min-height: calc(100vh - 200px);
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    animation: rotate 25s linear infinite;
    pointer-events: none;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 25px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.9) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 50px;
    opacity: 0.95;
    line-height: 1.9;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

.hero-image {
    margin-top: 50px;
    font-size: 8rem;
    opacity: 0.25;
    position: relative;
    z-index: 1;
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
}

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

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.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: left 0.5s ease;
}

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

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.5);
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
}

.btn-primary:active {
    transform: translateY(-2px) scale(1.02);
}

.btn-secondary {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
    color: white;
    box-shadow: 0 6px 20px rgba(255, 154, 158, 0.4);
    border: none;
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #ff8a8e 0%, #febcdf 100%);
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 30px rgba(255, 154, 158, 0.5);
}

.btn-secondary:active {
    transform: translateY(-2px) scale(1.02);
}

.btn-large {
    padding: 18px 40px;
    font-size: 18px;
    border-radius: 15px;
    font-weight: 600;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* 功能特性区域 */
.features {
    padding: 80px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 2.8rem;
    font-weight: 600;
    margin-bottom: 70px;
    color: #333;
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    text-align: center;
    padding: 45px 25px;
    border-radius: 16px;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border: 1px solid rgba(102, 126, 234, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.05), transparent);
    transition: left 0.5s ease;
}

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

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 50px rgba(102, 126, 234, 0.15);
    border-color: rgba(102, 126, 234, 0.3);
}

.feature-icon {
    font-size: 3.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 25px;
    transition: all 0.3s ease;
    display: inline-block;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-title {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
    transition: color 0.3s ease;
}

.feature-card:hover .feature-title {
    color: #667eea;
}

.feature-desc {
    color: #666;
    line-height: 1.9;
    font-size: 15px;
}

/* 升级信息区域 */
.upgrade-info {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.upgrade-info::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="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="20" cy="80" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.upgrade-content {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.upgrade-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    font-size: 2.5rem;
    color: white;
    margin-bottom: 40px;
    text-align: center;
    font-weight: 300;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.upgrade-title i {
    color: #ffd700;
    font-size: 2.8rem;
    animation: crown-glow 3s ease-in-out infinite alternate;
    filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.5));
}

@keyframes crown-glow {
    0% {
        text-shadow: 0 0 10px rgba(255, 215, 0, 0.6);
        transform: scale(1) rotate(-2deg);
    }
    50% {
        text-shadow: 0 0 25px rgba(255, 215, 0, 0.9), 0 0 35px rgba(255, 215, 0, 0.7);
        transform: scale(1.08) rotate(0deg);
    }
    100% {
        text-shadow: 0 0 15px rgba(255, 215, 0, 0.8);
        transform: scale(1.05) rotate(2deg);
    }
}

.upgrade-description {
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.8;
    font-size: 16px;
}

.upgrade-description > p {
    text-align: center;
    margin-bottom: 45px;
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.service-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin: 45px 0 50px;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.highlight-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, #667eea, #764ba2);
    transition: width 0.3s ease;
}

.highlight-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.highlight-item:hover::before {
    width: 100%;
    opacity: 0.1;
}

.highlight-item i {
    color: #667eea;
    font-size: 1.8rem;
    margin-top: 3px;
    flex-shrink: 0;
    transition: all 0.3s ease;
    padding: 12px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border-radius: 12px;
}

.highlight-item:hover i {
    color: #764ba2;
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(118, 75, 162, 0.2));
}

.highlight-item span {
    color: #444;
    line-height: 1.7;
    font-size: 15px;
}

.highlight-item strong {
    color: #222;
    font-weight: 600;
}

/* 联系管理员信息样式 */
.contact-admin-info {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 50%, #fecfef 100%);
    border: none;
    border-radius: 20px;
    padding: 40px;
    margin: 40px 0;
    text-align: center;
    box-shadow: 0 15px 35px rgba(255, 154, 158, 0.3);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.contact-admin-info::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(-50%, -50%) rotate(0deg); }
    50% { transform: translate(-50%, -50%) rotate(180deg); }
}

.contact-admin-info:hover {
    box-shadow: 0 25px 50px rgba(255, 154, 158, 0.4);
    transform: translateY(-5px) scale(1.02);
}

.contact-admin-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    font-size: 24px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 25px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 1;
}

.contact-admin-title i {
    color: #fff;
    font-size: 28px;
    animation: pulse 2s ease-in-out infinite;
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.5));
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.contact-admin-content {
    color: rgba(255, 255, 255, 0.95);
    position: relative;
    z-index: 1;
}

.contact-admin-text {
    font-size: 17px;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 300;
    line-height: 1.7;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 25px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    font-size: 16px;
    min-width: 200px;
    justify-content: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.contact-item:hover::before {
    left: 100%;
}

.contact-item:hover {
    border-color: rgba(255, 255, 255, 0.8);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
    transform: translateY(-5px) scale(1.05);
    background: rgba(255, 255, 255, 1);
}

.contact-item i {
    color: #ff6b6b;
    font-size: 20px;
    width: 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-item:hover i {
    color: #ff5252;
    transform: scale(1.2) rotate(10deg);
}

.contact-label {
    font-weight: 600;
    color: #333;
    transition: color 0.3s ease;
}

.contact-item:hover .contact-label {
    color: #222;
}

.contact-value {
    color: #ff6b6b;
    font-weight: 700;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 16px;
    transition: color 0.3s ease;
}

.contact-item:hover .contact-value {
    color: #ff5252;
}

/* 法律声明区域 */
.legal-notice {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    border: none;
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.legal-notice::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 60 60"><defs><pattern id="warning" width="60" height="60" patternUnits="userSpaceOnUse"><polygon points="30,10 50,45 10,45" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="60" height="60" fill="url(%23warning)"/></svg>');
    opacity: 0.3;
}

.notice-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.notice-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    font-size: 1.8rem;
    color: #d68910;
    margin-bottom: 30px;
    font-weight: 600;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.notice-title i {
    color: #f39c12;
    font-size: 2rem;
    animation: warning-pulse 2s ease-in-out infinite;
    filter: drop-shadow(0 0 8px rgba(243, 156, 18, 0.5));
}

@keyframes warning-pulse {
    0%, 100% { 
        transform: scale(1);
        opacity: 1;
    }
    50% { 
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.notice-text {
    color: #8b4513;
    line-height: 1.8;
    font-size: 16px;
    text-align: center;
}

.notice-text ul {
    margin: 20px 0;
    padding-left: 0;
    list-style: none;
    text-align: left;
}

.notice-text li {
    margin-bottom: 12px;
    padding-left: 30px;
    position: relative;
}

.notice-text li::before {
    content: '⚠️';
    position: absolute;
    left: 0;
    top: 0;
    font-size: 16px;
}

.notice-link {
    margin-top: 25px;
    text-align: center;
}

.notice-link a {
    color: #d68910;
    text-decoration: none;
    font-weight: 600;
    padding: 10px 20px;
    border: 2px solid #d68910;
    border-radius: 25px;
    transition: all 0.3s ease;
    display: inline-block;
}

.notice-link a:hover {
    background: #d68910;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(214, 137, 16, 0.3);
}

/* 底部样式 */
.footer {
    background: linear-gradient(135deg, #1976D2 0%, #1565C0 100%);
    color: white;
    padding: 40px 0 20px;
    position: relative;
    overflow: hidden;
}

.footer::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="footerPattern" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="80" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23footerPattern)"/></svg>');
    opacity: 0.3;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.footer-info .logo {
    margin-bottom: 10px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 8px 12px;
    border-radius: 6px;
}

.footer-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    z-index: 1;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero {
        padding: 100px 0 80px;
    }
    
    .hero-title {
        font-size: 2.2rem;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        padding: 0 15px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .hero-image {
        font-size: 5rem;
        margin-top: 30px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .contact-admin-info {
        padding: 30px 20px;
        margin: 30px 0;
        border-radius: 15px;
    }
    
    .contact-admin-title {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .contact-admin-title i {
        font-size: 24px;
    }
    
    .contact-admin-text {
        font-size: 16px;
        margin-bottom: 25px;
    }
    
    .contact-methods {
        flex-direction: column;
        gap: 15px;
    }
    
    .contact-item {
        min-width: auto;
        width: 100%;
        max-width: 320px;
        font-size: 15px;
        padding: 12px 20px;
        margin: 0 auto;
    }
    
    .contact-item i {
        font-size: 18px;
    }
    
    .contact-value {
        font-size: 15px;
    }
    
    .upgrade-info {
        padding: 60px 0;
    }
    
    .upgrade-title {
        font-size: 2rem;
        margin-bottom: 30px;
    }
    
    .upgrade-title i {
        font-size: 2.2rem;
    }
    
    .upgrade-description > p {
        font-size: 16px;
        margin-bottom: 35px;
    }
    
    .service-highlights {
        grid-template-columns: 1fr;
        gap: 20px;
        margin: 35px 0 40px;
    }
    
    .highlight-item {
        padding: 20px;
        gap: 15px;
        border-radius: 12px;
    }
    
    .highlight-item i {
        font-size: 1.6rem;
        padding: 10px;
    }
    
    .highlight-item span {
        font-size: 15px;
    }
    
    .legal-notice {
        padding: 40px 0;
    }
    
    .notice-content {
        padding: 30px 20px;
        border-radius: 15px;
    }
    
    .notice-title {
        font-size: 1.5rem;
        margin-bottom: 25px;
    }
    
    .notice-title i {
        font-size: 1.7rem;
    }
    
    .notice-text {
        font-size: 15px;
    }
    
    .notice-text li {
        padding-left: 25px;
        margin-bottom: 10px;
    }
}

/* 法律声明页面样式 */
.legal-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-top: 30px;
    margin-bottom: 30px;
}

.page-title {
    font-size: 2.5rem;
    color: #1976D2;
    text-align: center;
    margin-bottom: 40px;
    font-weight: 300;
    padding-bottom: 20px;
    border-bottom: 3px solid #e3f2fd;
    position: relative;
}

.page-title::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(135deg, #1976D2, #42A5F5);
    border-radius: 2px;
}

.legal-section {
    margin-bottom: 50px;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 12px;
    border-left: 5px solid #1976D2;
    transition: all 0.3s ease;
}

.legal-section:hover {
    box-shadow: 0 5px 20px rgba(25, 118, 210, 0.1);
    transform: translateY(-2px);
}

.legal-section h2 {
    font-size: 1.8rem;
    color: #1976D2;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
}

.legal-section h2 i {
    font-size: 1.6rem;
    color: #42A5F5;
}

.legal-section h3 {
    font-size: 1.3rem;
    color: #333;
    margin: 25px 0 15px 0;
    font-weight: 600;
    padding-left: 15px;
    border-left: 3px solid #42A5F5;
    background: rgba(66, 165, 245, 0.05);
    padding: 10px 15px;
    border-radius: 6px;
}

.legal-section p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 16px;
    text-align: justify;
}

.legal-section ul {
    margin: 20px 0;
    padding-left: 0;
    list-style: none;
}

.legal-section li {
    color: #555;
    line-height: 1.7;
    margin-bottom: 12px;
    padding: 12px 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    position: relative;
    padding-left: 50px;
    transition: all 0.3s ease;
}

.legal-section li:hover {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transform: translateX(5px);
}

.legal-section li::before {
    content: '✓';
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #1976D2, #42A5F5);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.legal-section li strong {
    color: #1976D2;
    font-weight: 600;
}

.update-time {
    text-align: center;
    font-style: italic;
    color: #666;
    background: #e3f2fd;
    padding: 15px;
    border-radius: 8px;
    margin-top: 30px;
    border: 1px solid #bbdefb;
}

.update-time strong {
    color: #1976D2;
}

/* 法律声明页面响应式设计 */
@media (max-width: 768px) {
    .legal-content {
        padding: 30px 15px;
        margin: 20px 10px;
        border-radius: 10px;
    }
    
    .page-title {
        font-size: 2rem;
        margin-bottom: 30px;
    }
    
    .legal-section {
        padding: 20px 15px;
        margin-bottom: 30px;
    }
    
    .legal-section h2 {
        font-size: 1.5rem;
        margin-bottom: 20px;
    }
    
    .legal-section h3 {
        font-size: 1.2rem;
        margin: 20px 0 12px 0;
        padding: 8px 12px;
    }
    
    .legal-section p {
        font-size: 15px;
        margin-bottom: 15px;
    }
    
    .legal-section li {
        padding: 10px 15px 10px 40px;
        margin-bottom: 10px;
        font-size: 14px;
    }
    
    .legal-section li::before {
        left: 12px;
        width: 18px;
        height: 18px;
        font-size: 10px;
    }
    
    .update-time {
        padding: 12px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 60px 0;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .features {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .feature-card {
        padding: 30px 15px;
    }
    
    .legal-content {
        margin: 15px 5px;
        padding: 20px 10px;
    }
    
    .page-title {
        font-size: 1.8rem;
        margin-bottom: 25px;
    }
    
    .legal-section {
        padding: 15px 10px;
        margin-bottom: 25px;
    }
    
    .legal-section h2 {
        font-size: 1.3rem;
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    
    .legal-section h3 {
        font-size: 1.1rem;
        padding: 6px 10px;
    }
    
    .legal-section li {
        padding: 8px 12px 8px 35px;
        font-size: 13px;
    }
    
    .legal-section li::before {
        left: 10px;
        width: 16px;
        height: 16px;
        font-size: 9px;
    }
}

/* ==================== 认证页面样式 ==================== */

/* 认证页面基础样式 */
.auth-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
    overflow-y: auto;
}

.auth-page::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="authPattern" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="20" cy="80" r="1" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23authPattern)"/></svg>');
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

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

/* 认证容器 */
.auth-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    max-width: 450px;
    width: 100%;
    position: relative;
    z-index: 1;
    overflow: visible;
    animation: slideUp 0.6s ease-out;
    margin: 20px auto;
    max-height: none;
}

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

.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #667eea);
    background-size: 200% 100%;
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* 认证头部 */
.auth-header {
    text-align: center;
    padding: 40px 30px 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid #e5e7eb;
}

.auth-header .logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 15px;
}

.auth-header .logo i {
    font-size: 2.5rem;
    color: #667eea;
    animation: pulse 2s ease-in-out infinite;
}

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

.auth-header .logo h1 {
    font-size: 2rem;
    font-weight: 600;
    color: #1f2937;
    margin: 0;
}

.auth-header .subtitle {
    color: #6b7280;
    font-size: 1rem;
    margin: 0;
    font-weight: 400;
}

/* 认证表单 */
.auth-form {
    padding: 40px 30px;
    background: white;
}

.auth-form h2 {
    text-align: center;
    font-size: 1.8rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 30px;
    position: relative;
}

.auth-form h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 2px;
}

/* 表单组 */
.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 8px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-label i {
    color: #667eea;
    width: 16px;
    text-align: center;
    transition: all 0.3s ease;
}

.required {
    color: #ef4444;
    font-weight: 700;
}

/* 表单输入框 */
.form-input {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: #f9fafb;
    color: #1f2937;
    font-family: inherit;
    box-sizing: border-box;
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}

.form-input:hover {
    border-color: #d1d5db;
    background: white;
}

.form-input::placeholder {
    color: #9ca3af;
    transition: all 0.3s ease;
}

.form-input:focus::placeholder {
    color: #d1d5db;
    transform: translateY(-2px);
}

/* 表单帮助文本 */
.form-help {
    font-size: 0.85rem;
    color: #6b7280;
    margin-top: 5px;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 邮箱验证码组 */
.email-code-group {
    display: flex;
    gap: 10px;
    align-items: stretch;
}

.email-code-input {
    flex: 1;
}

.email-code-btn {
    white-space: nowrap;
    min-width: 120px;
    flex-shrink: 0;
}

.email-code-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 验证码组 */
.captcha-group {
    display: flex;
    gap: 15px;
    align-items: center;
}

.captcha-input {
    flex: 1;
}

.captcha-image {
    width: 120px;
    height: 50px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #f9fafb;
}

.captcha-image:hover {
    border-color: #667eea;
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

/* 复选框样式 */
.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-size: 0.95rem;
    color: #374151;
    line-height: 1.5;
    position: relative;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid #d1d5db;
    border-radius: 4px;
    background: #f9fafb;
    position: relative;
    transition: all 0.3s ease;
    flex-shrink: 0;
    margin-top: 2px;
}

.checkbox-label:hover .checkmark {
    border-color: #667eea;
    background: #f0f9ff;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: #667eea;
    border-color: #667eea;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

.checkbox-label a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.checkbox-label a:hover {
    color: #4f46e5;
    text-decoration: underline;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px 30px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
    font-family: inherit;
    box-sizing: border-box;
}

.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: left 0.5s ease;
}

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

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

/* 密码强度指示器 */
.password-strength {
    margin-top: 8px;
    padding: 10px;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    display: none;
}

.strength-bar {
    height: 6px;
    background: #e5e7eb;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.strength-fill {
    height: 100%;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.strength-weak .strength-fill {
    background: linear-gradient(90deg, #ef4444, #f87171);
}

.strength-medium .strength-fill {
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
}

.strength-strong .strength-fill {
    background: linear-gradient(90deg, #10b981, #34d399);
}

.strength-text {
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 5px;
}

.strength-weak .strength-text {
    color: #ef4444;
}

.strength-medium .strength-text {
    color: #f59e0b;
}

.strength-strong .strength-text {
    color: #10b981;
}

/* 密码匹配指示器 */
.password-match {
    margin-top: 8px;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    display: none;
    align-items: center;
    gap: 6px;
}

.match-success {
    background: #f0fdf4;
    color: #10b981;
    border: 1px solid #bbf7d0;
}

.match-error {
    background: #fef2f2;
    color: #ef4444;
    border: 1px solid #fecaca;
}

/* 提示框样式 */
.alert {
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    position: relative;
    border: 1px solid transparent;
}

.alert-error {
    background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
    color: #dc2626;
    border-color: #fecaca;
}

.alert-success {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    color: #16a34a;
    border-color: #bbf7d0;
}

.alert i {
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* 认证链接 */
.auth-links {
    text-align: center;
    margin-top: 30px;
    padding-top: 25px;
    border-top: 1px solid #f3f4f6;
}

.auth-links .link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
    margin: 0 10px;
}

.auth-links .link:hover {
    background: #f0f9ff;
    color: #4f46e5;
    transform: translateY(-1px);
}

/* 认证页脚 */
.auth-footer {
    text-align: center;
    padding: 20px 30px;
    background: #f8fafc;
    border-top: 1px solid #e5e7eb;
    color: #6b7280;
    font-size: 0.9rem;
}

.auth-footer p {
    margin: 5px 0;
}

.footer-link {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.footer-link:hover {
    color: #4f46e5;
    text-decoration: underline;
}

.separator {
    margin: 0 10px;
    color: #d1d5db;
}

/* 联系管理员信息样式优化 */
.auth-form .contact-admin-info {
    background: linear-gradient(135deg, #ff9a9e 0%, #fecfef 100%);
    border: none;
    border-radius: 16px;
    padding: 25px;
    margin: 25px 0;
    text-align: center;
    box-shadow: 0 8px 25px rgba(255, 154, 158, 0.2);
    position: relative;
    overflow: hidden;
}

.auth-form .contact-admin-info::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

.auth-form .contact-admin-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.auth-form .contact-admin-title i {
    font-size: 1.2rem;
    animation: pulse 2s ease-in-out infinite;
}

.auth-form .contact-admin-content {
    position: relative;
    z-index: 1;
}

.auth-form .contact-admin-text {
    font-size: 0.95rem;
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.9);
}

.auth-form .contact-methods {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.auth-form .contact-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    font-size: 0.9rem;
    min-width: 140px;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.auth-form .contact-item:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.auth-form .contact-item i {
    color: #ff6b6b;
    font-size: 1rem;
}

.auth-form .contact-label {
    font-weight: 600;
    color: #333;
}

.auth-form .contact-value {
    color: #ff6b6b;
    font-weight: 700;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .auth-page {
        padding: 15px;
        align-items: flex-start;
    }
    
    .auth-container {
        max-width: 100%;
        border-radius: 15px;
        margin: 10px auto;
    }
    
    .auth-header {
        padding: 30px 20px 15px;
    }
    
    .auth-header .logo h1 {
        font-size: 1.8rem;
    }
    
    .auth-form {
        padding: 30px 20px;
    }
    
    .auth-form h2 {
        font-size: 1.6rem;
        margin-bottom: 25px;
    }
    
    .form-input {
        padding: 12px 16px;
        font-size: 16px; /* 防止iOS缩放 */
    }
    
    .captcha-group {
        flex-direction: column;
        gap: 10px;
    }
    
    .captcha-image {
        width: 100%;
        max-width: 200px;
        align-self: center;
    }
    
    .auth-links .link {
        display: block;
        margin: 8px 0;
    }
    
    .auth-footer {
        padding: 15px 20px;
        font-size: 0.85rem;
    }
    
    .auth-form .contact-methods {
        flex-direction: column;
        gap: 10px;
    }
    
    .auth-form .contact-item {
        min-width: auto;
        width: 100%;
        max-width: 250px;
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .auth-page {
        padding: 10px;
        min-height: 100vh;
    }
    
    .auth-container {
        border-radius: 10px;
        margin: 5px auto;
    }
    
    .auth-header {
        padding: 25px 15px 10px;
    }
    
    .auth-header .logo {
        flex-direction: column;
        gap: 10px;
    }
    
    .auth-header .logo h1 {
        font-size: 1.6rem;
    }
    
    .auth-form {
        padding: 25px 15px;
    }
    
    .form-group {
        margin-bottom: 20px;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 15px;
    }
    
    .checkbox-label {
        font-size: 0.9rem;
    }
    
    .auth-form .contact-admin-info {
        padding: 20px 15px;
        margin: 20px 0;
    }
    
    .auth-form .contact-admin-title {
        font-size: 1rem;
        margin-bottom: 12px;
    }
    
    .auth-form .contact-admin-text {
        font-size: 0.9rem;
        margin-bottom: 12px;
    }
}