:root {
    --primary-color: #6a11cb;
    --secondary-color: #2575fc;
    --accent-color: #ff5252;
    --dark-color: #232932;
    --light-color: #f8f9fa;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --text-color: #343a40;
    --text-light: rgba(255, 255, 255, 0.8);
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition-normal: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    --container-width-pc: 85%;
    --section-spacing: 60px;
}

body {
    background-color: var(--light-color);
    font-family: "Microsoft YaHei", sans-serif;
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

a {
    text-decoration: none;
    transition: var(--transition-normal);
}

a:hover {
    transform: translateY(-2px);
}

/* 背景动画效果 */
@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes float {
    0% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
    100% {
        transform: translateY(0px) rotate(0deg);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.8;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1);
        opacity: 0.8;
    }
}

@keyframes moveLeftRight {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(20px);
    }
}

.container {
    width: var(--container-width-pc);
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.header {
    background: linear-gradient(-45deg, #6a11cb, #2575fc, #3a1c71, #d76d77);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    color: white;
    padding: 120px 0 80px;
    margin-bottom: var(--section-spacing);
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center bottom;
    opacity: 0.15;
    z-index: 0;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="white" fill-opacity="1" d="M0,160L48,186.7C96,213,192,267,288,266.7C384,267,480,213,576,202.7C672,192,768,224,864,229.3C960,235,1056,213,1152,181.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
}

.header h1 {
    font-size: 3.8rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 0 3px 15px rgba(0,0,0,0.2);
    position: relative;
    z-index: 1;
    letter-spacing: -1px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards 0.3s;
}

.header .lead {
    font-size: 1.6rem;
    margin-bottom: 2rem;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    font-weight: 300;
    position: relative;
    z-index: 1;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards 0.6s;
}

.header-cta {
    margin-top: 2rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards 0.9s;
}

/* 淡入淡出动画 */
@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes scaleIn {
    0% {
        transform: scale(0.9);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.invite-code {
    background: rgba(255,255,255,0.95);
    border: none;
    border-radius: 15px;
    padding: 30px;
    font-size: 1.25rem;
    margin: 40px 0;
    position: relative;
    box-shadow: 0 15px 35px rgba(0,0,0,0.15);
    transition: var(--transition-bounce);
    overflow: hidden;
    opacity: 0;
    animation: scaleIn 1s ease forwards 1.2s;
}

.invite-code::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        to right, 
        rgba(255,255,255,0) 0%,
        rgba(255,255,255,0.3) 50%,
        rgba(255,255,255,0) 100%
    );
    transform: rotate(30deg);
    transition: transform 0.7s;
    z-index: 1;
    pointer-events: none;
}

.invite-code:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(106, 17, 203, 0.25);
}

.invite-code:hover::before {
    transform: translateX(100%) rotate(30deg);
}

.invite-code label {
    display: block;
    margin-bottom: 12px;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.2rem;
    position: relative;
}

.invite-code label::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    margin-top: 8px;
    border-radius: 3px;
}

.invite-code-text {
    background: linear-gradient(135deg, #f0e7ff 0%, #e4eaff 100%);
    padding: 15px;
    border-radius: 10px;
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 1.1rem;
    font-weight: 600;
    color: #5209b3;
    display: block;
    width: 100%;
    text-align: left;
    overflow-x: auto;
    white-space: nowrap;
    margin-bottom: 15px;
    box-sizing: border-box;
    position: relative;
    border-left: 4px solid var(--primary-color);
    letter-spacing: 1px;
    transition: var(--transition-normal);
}

.invite-code-text:hover {
    transform: translateX(5px);
    background: linear-gradient(135deg, #e4e0f5 0%, #d9e0ff 100%);
}

/* 添加渐变遮罩指示器，提示可以横向滚动 */
.invite-code-text::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 40px;
    background: linear-gradient(to right, rgba(240,231,255,0), rgba(240,231,255,1));
    pointer-events: none;
    opacity: 0.8;
}

/* 添加提示文字 */
.scroll-hint {
    display: block;
    text-align: right;
    font-size: 0.8rem;
    color: #6c757d;
    margin-top: -10px;
    margin-bottom: 15px;
    animation: moveLeftRight 2s ease-in-out infinite;
}

.copy-btn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    border-radius: 30px;
    padding: 12px 24px;
    font-weight: 600;
    transition: var(--transition-normal);
    position: relative;
    display: inline-block;
    right: auto;
    top: auto;
    transform: none;
    float: right;
    z-index: 2;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(106, 17, 203, 0.3);
}

.copy-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: var(--transition-normal);
}

.copy-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(106, 17, 203, 0.4);
}

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

.copy-btn:active {
    transform: translateY(1px);
    box-shadow: 0 5px 15px rgba(106, 17, 203, 0.3);
}

.section {
    background-color: white;
    border-radius: 20px;
    box-shadow: var(--box-shadow);
    padding: 50px;
    margin-bottom: var(--section-spacing);
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.05);
    opacity: 0;
    transform: translateY(30px);
    width: 100%;
}

.section.animate {
    animation: fadeInUp 1s ease forwards;
}

.section:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1.8rem;
    color: #212529;
    display: flex;
    align-items: center;
    position: relative;
}

.section-title i {
    margin-right: 15px;
    color: var(--primary-color);
    font-size: 1.8rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 70px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.feature-box {
    border-radius: 16px;
    padding: 35px;
    background: white;
    box-shadow: 0 10px 30px rgba(0,0,0,0.07);
    transition: var(--transition-bounce);
    height: 100%;
    border: 1px solid #f0f0f0;
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.feature-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0;
    background: linear-gradient(135deg, rgba(106, 17, 203, 0.1) 0%, rgba(37, 117, 252, 0.1) 100%);
    z-index: -1;
    transition: var(--transition-normal);
}

.feature-box:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.feature-box:hover::before {
    height: 100%;
}

.feature-emoji {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
    transition: var(--transition-normal);
    transform-origin: center;
    animation: float 6s ease-in-out infinite;
}

.feature-box:hover .feature-emoji {
    transform: scale(1.2) translateY(-10px);
}

.feature-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #212529;
    position: relative;
    display: inline-block;
}

.feature-title::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
    transition: var(--transition-normal);
}

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

.testimonial-card {
    background: white;
    border-radius: 16px;
    padding: 35px;
    height: 100%;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    border: 1px solid #f0f0f0;
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
    z-index: 1;
    margin-bottom: 30px;
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: -10px;
    right: -10px;
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    opacity: 0.1;
    border-radius: 50%;
    z-index: -1;
    transition: var(--transition-normal);
}

.testimonial-card:hover {
    transform: translateY(-15px) rotate(2deg);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.testimonial-card:hover::before {
    transform: scale(4);
    opacity: 0.05;
}

.testimonial-content {
    position: relative;
    padding: 10px 0 20px 35px;
    margin-bottom: 20px;
    font-style: italic;
    color: #495057;
    line-height: 1.8;
    border-bottom: 1px dashed #e9ecef;
    min-height: 100px;
}

.testimonial-content::before {
    content: '"';
    position: absolute;
    left: 0;
    top: 0;
    font-size: 60px;
    color: var(--primary-color);
    opacity: 0.2;
    line-height: 1;
    font-family: Georgia, serif;
}

.stars {
    color: var(--warning-color);
    margin-bottom: 15px;
    transition: var(--transition-normal);
}

.testimonial-card:hover .stars {
    transform: scale(1.1);
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    margin-top: 15px;
}

.testimonial-author strong {
    font-size: 1.1rem;
    color: #333;
    margin-bottom: 5px;
}

.download-stats {
    background: linear-gradient(135deg, #f8f9fa 0%, #e4eaff 100%);
    border-radius: 16px;
    padding: 25px;
    margin-bottom: 30px;
    border: 1px solid rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.download-stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;utf8,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M0 0h2v2H0V0zm4 0h2v2H4V0zm4 0h2v2H8V0zm4 0h2v2h-2V0zm4 0h2v2h-2V0zM0 4h2v2H0V4zm4 0h2v2H4V4zm4 0h2v2H8V4zm4 0h2v2h-2V4zm4 0h2v2h-2V4zM0 8h2v2H0V8zm4 0h2v2H4V8zm4 0h2v2H8V8zm4 0h2v2h-2V8zm4 0h2v2h-2V8zM0 12h2v2H0v-2zm4 0h2v2H4v-2zm4 0h2v2H8v-2zm4 0h2v2h-2v-2zm4 0h2v2h-2v-2zM0 16h2v2H0v-2zm4 0h2v2H4v-2zm4 0h2v2H8v-2zm4 0h2v2h-2v-2zm4 0h2v2h-2v-2z" fill="%236a11cb" fill-opacity="0.05"/></svg>');
    opacity: 0.5;
}

.download-btn {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    box-shadow: 0 10px 20px rgba(106, 17, 203, 0.3);
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
    z-index: 1;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    z-index: -1;
    transition: opacity 0.5s ease;
    opacity: 0;
}

.download-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(106, 17, 203, 0.4);
    color: white;
}

.download-btn:hover::before {
    opacity: 1;
}

.stats-item {
    font-size: 1.1rem;
    color: #495057;
    margin-right: 25px;
    display: inline-flex;
    align-items: center;
    transition: var(--transition-normal);
}

.stats-item:hover {
    transform: translateY(-3px);
    color: var(--primary-color);
}

.stats-item i {
    color: var(--primary-color);
    margin-right: 8px;
    font-size: 1.2rem;
}

.guide-content {
    max-height: 500px;
    overflow-y: auto;
    padding: 25px;
    background-color: #f9f9f9;
    border-radius: 16px;
    border: 1px solid #e9ecef;
    box-shadow: inset 0 0 15px rgba(0,0,0,0.05);
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) #f1f1f1;
}

.guide-content::-webkit-scrollbar {
    width: 10px;
}

.guide-content::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.guide-content::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--primary-color), var(--secondary-color));
    border-radius: 10px;
}

.guide-content::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

.guide-content img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin: 15px 0;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: var(--transition-normal);
}

.guide-content img:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.alert-special {
    background: linear-gradient(135deg, #fff9c4 0%, #ffecb3 100%);
    border-left: 5px solid var(--warning-color);
    padding: 25px;
    margin-bottom: 30px;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(255, 193, 7, 0.1);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.alert-special::before {
    content: '';
    position: absolute;
    top: -10px;
    right: -10px;
    width: 60px;
    height: 60px;
    background: var(--warning-color);
    opacity: 0.2;
    border-radius: 50%;
    transition: var(--transition-normal);
}

.alert-special:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(255, 193, 7, 0.15);
}

.alert-special:hover::before {
    transform: scale(3);
    opacity: 0.1;
}

.system-features {
    margin-top: 30px;
}

.feature-list {
    list-style: none;
    padding-left: 0;
}

.feature-list li {
    padding: 16px;
    border-bottom: 1px solid #e9ecef;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    position: relative;
}

.feature-list li:last-child {
    border-bottom: none;
}

.feature-list li::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 0;
    background: linear-gradient(to right, rgba(106, 17, 203, 0.05), transparent);
    transition: var(--transition-normal);
}

.feature-list li:hover {
    transform: translateX(8px);
    color: var(--primary-color);
}

.feature-list li:hover::before {
    width: 100%;
}

.feature-list i {
    color: var(--success-color);
    margin-right: 12px;
    font-size: 1.2rem;
    transition: var(--transition-normal);
}

.feature-list li:hover i {
    transform: scale(1.2) rotate(10deg);
}

.promo-badge {
    display: inline-block;
    background: linear-gradient(135deg, #ff8a00 0%, #ff5252 100%);
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-left: 15px;
    box-shadow: 0 5px 15px rgba(255, 82, 82, 0.3);
    animation: pulse 2s infinite;
    transform-origin: center;
}

.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: 20px;
    padding: 60px;
    margin-bottom: 50px;
    box-shadow: 0 20px 40px rgba(106, 17, 203, 0.3);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('data:image/svg+xml;utf8,<svg width="30" height="30" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><path d="M10 10L90 10L90 90L10 90" stroke="white" stroke-opacity="0.15" fill="none"/></svg>');
    opacity: 0.3;
}

.cta-section::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
    right: -50px;
    top: -50px;
    animation: pulse 8s infinite;
}

.cta-section h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
    position: relative;
}

.cta-btn {
    background: white;
    color: var(--primary-color);
    border: none;
    padding: 16px 40px;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 50px;
    margin-top: 25px;
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
    z-index: 1;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

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

.cta-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    color: var(--primary-color);
}

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

.footer {
    background-color: var(--dark-color);
    color: rgba(255, 255, 255, 0.7);
    padding: 70px 0 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color), var(--accent-color));
}

.footer-links {
    margin-bottom: 40px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    margin: 0 15px;
    text-decoration: none;
    transition: var(--transition-normal);
    position: relative;
    padding: 5px 0;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    transition: var(--transition-normal);
}

.footer-links a:hover {
    color: white;
    transform: translateY(-3px);
}

.footer-links a:hover::after {
    width: 100%;
}

.version-badge {
    background: rgba(255,255,255,0.1);
    color: white;
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-left: 10px;
    transition: var(--transition-normal);
    border: 1px solid rgba(255,255,255,0.2);
}

.version-badge:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-3px);
}

.animated-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 15s ease-in-out infinite;
}

.shape-1 {
    width: 300px;
    height: 300px;
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 400px;
    height: 400px;
    bottom: -150px;
    right: -150px;
    animation-delay: 3s;
}

.shape-3 {
    width: 200px;
    height: 200px;
    bottom: 50px;
    left: 30%;
    animation-delay: 7s;
}

/* 3D卡片效果 */
.card-3d-container {
    perspective: 1000px;
    transform-style: preserve-3d;
}

.card-3d {
    transition: transform 0.5s ease;
    transform-style: preserve-3d;
}

.card-3d:hover {
    transform: rotateY(10deg) rotateX(5deg);
}

/* 悬浮效果 */
.float-element {
    animation: float 6s ease-in-out infinite;
}

/* 按钮发光效果 */
.glow-btn {
    position: relative;
}

.glow-btn::after {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: radial-gradient(circle, var(--primary-color) 0%, rgba(255,255,255,0) 70%);
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s ease;
}

.glow-btn:hover::after {
    opacity: 0.3;
}

/* 增强移动端适配样式 */
@media (min-width: 1200px) {
    .container {
        width: var(--container-width-pc);
    }
}

@media (max-width: 1199px) and (min-width: 993px) {
    .container {
        width: 90%;
    }
}

@media (max-width: 992px) {
    .container {
        width: 95%;
    }
    
    .header {
        padding: 80px 0 60px;
        margin-bottom: 40px;
    }
    .header h1 {
        font-size: 2.8rem;
    }
    .header .lead {
        font-size: 1.4rem;
        padding: 0 15px;
    }
    .section {
        padding: 40px;
        margin-bottom: 40px;
    }
    .section-title {
        font-size: 2rem;
    }
    .cta-section {
        padding: 40px;
        margin-bottom: 40px;
    }
    .cta-section h3 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 70px 0 50px;
        margin-bottom: 30px;
    }
    .header h1 {
        font-size: 2.2rem;
    }
    .header .lead {
        font-size: 1.2rem;
        padding: 0 10px;
    }
    .header-cta h5 {
        font-size: 1rem;
    }
    .invite-code {
        padding: 20px;
    }
    .invite-code-text {
        font-size: 1rem;
        margin-bottom: 15px;
    }
    .copy-btn {
        float: none;
        display: block;
        width: 100%;
        text-align: center;
        padding: 12px;
        font-size: 1rem;
    }
    .download-btn {
        width: 100%;
        padding: 12px 20px;
    }
    .feature-box {
        padding: 25px;
    }
    .feature-emoji {
        font-size: 2.5rem;
    }
    .feature-title {
        font-size: 1.3rem;
    }
    .cta-section {
        padding: 30px 20px;
    }
    .cta-section h3 {
        font-size: 1.8rem;
    }
    .cta-btn {
        padding: 12px 30px;
        width: 100%;
    }
    .footer-links {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    .footer-links a {
        margin: 5px 10px;
        font-size: 0.95rem;
    }
}

@media (max-width: 576px) {
    .header {
        padding: 60px 0 40px;
    }
    .header h1 {
        font-size: 2rem;
    }
    .header .lead {
        font-size: 1.1rem;
    }
    .invite-code-text {
        font-size: 0.9rem;
        padding: 10px;
    }
    .invite-code label {
        font-size: 1.2rem;
    }
    .scroll-hint {
        font-size: 0.8rem;
    }
    .section {
        padding: 25px 20px;
        margin-bottom: 30px;
    }
    .testimonial-content {
        font-size: 0.95rem;
        padding-left: 30px;
    }
    .testimonial-content::before {
        font-size: 50px;
    }
    .feature-emoji {
        font-size: 2.2rem;
    }
    .feature-box {
        padding: 20px;
        margin-bottom: 15px;
    }
    .guide-content {
        max-height: 400px;
        padding: 20px;
        font-size: 0.95rem;
    }
    .alert-special {
        padding: 20px;
    }
    .cta-section h3 {
        font-size: 1.6rem;
    }
    .version-badge {
        display: block;
        margin: 10px auto 0;
        width: fit-content;
    }
}

/* 复制成功提示样式 */
.copy-success {
    position: fixed;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, var(--success-color) 0%, #20c997 100%);
    color: white;
    padding: 15px 25px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    z-index: 9999;
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    display: flex;
    align-items: center;
}

.copy-success i {
    margin-right: 10px;
    font-size: 1.2rem;
}

.copy-success.show {
    opacity: 1;
    transform: translateY(0);
}

/* 加载动画 */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.shimmer {
    background: linear-gradient(90deg, 
        rgba(255,255,255,0) 0%, 
        rgba(255,255,255,0.2) 50%, 
        rgba(255,255,255,0) 100%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

/* 闪光效果 */
@keyframes shine {
    0% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0.5;
    }
}

.shine {
    animation: shine 2s ease-in-out infinite;
}

/* 二维码和海报按钮样式 */
.qrcode-btn, .poster-btn {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: white;
    border: none;
    padding: 15px 20px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    box-shadow: 0 8px 20px rgba(37, 117, 252, 0.3);
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.qrcode-btn::before, .poster-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: var(--transition-normal);
}

.qrcode-btn:hover, .poster-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(37, 117, 252, 0.4);
    color: white;
}

.qrcode-btn:hover::before, .poster-btn:hover::before {
    left: 100%;
}

.qrcode-btn:active, .poster-btn:active {
    transform: translateY(1px);
    box-shadow: 0 5px 15px rgba(37, 117, 252, 0.3);
}

/* 响应式调整 */
@media (max-width: 767.98px) {
    .qrcode-btn, .poster-btn {
        margin-top: 10px !important;
        width: 100%;
        display: block;
    }
}

.back-home-btn {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 100;
    color: white;
    background-color: rgba(0, 0, 0, 0.3);
    padding: 8px 15px;
    border-radius: 5px;
    text-decoration: none;
    transition: background-color 0.3s ease;
}
.back-home-btn:hover {
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
}
.privilege-card {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: .5rem;
    padding: 1.8rem;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
    margin-bottom: 30px;
}
.privilege-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,.1);
}
.privilege-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}
.privilege-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.privilege-desc {
    font-size: 0.9rem;
    color: #6c757d;
}
.important-note {
    background-color: #fff3cd;
    border-color: #ffeeba;
    color: #856404;
    padding: 1rem 1.25rem;
    border: 1px solid transparent;
    border-radius: .25rem;
    margin-bottom: 1.5rem;
}
.important-note strong {
     color: #664d03;
}

.section {
    margin-bottom: var(--section-spacing);
}
.card-3d-container {
    overflow: hidden;
    margin-bottom: 30px;
}
.alert-primary {
    margin-bottom: 35px;
}
.feature-box {
    padding: 35px;
    margin-bottom: 30px;
    height: 100%;
}
.testimonial-card {
    height: 100%;
    margin-bottom: 30px;
}
.testimonial-content {
    min-height: 100px;
}
.guide-content {
    padding: 15px;
    border: 1px solid #eee;
    border-radius: 5px;
    background-color: #fcfcfc;
}
.guide-content h3, .guide-content h4 {
    margin-top: 20px;
    margin-bottom: 15px;
}
.guide-content ol, .guide-content ul {
    padding-left: 20px;
}
.guide-content li {
    margin-bottom: 8px;
}

.modal-body {
    padding: 20px;
}
.modal-body img {
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    max-width: 100%;
}
.invite-code {
    margin-bottom: 30px;
    padding: 20px;
}
.invite-code-text {
    margin: 10px 0 15px;
    padding: 12px 15px;
    overflow-x: auto;
}

@media (max-width: 768px) {
    .section {
        padding: 30px;
    }
    .privilege-card {
        padding: 1.2rem;
    }
    .feature-box {
        padding: 15px;
    }
    .invite-code {
        padding: 15px;
    }
    .privilege-row {
        margin-left: -15px;
        margin-right: -15px;
    }
    .privilege-row > div {
        padding-left: 15px;
        padding-right: 15px;
        margin-bottom: 30px;
    }
    .modal-body {
        padding: 15px;
    }
    .important-note {
        padding: 10px 15px;
    }
}

.row {
    margin-bottom: 30px;
}

.privilege-row {
    margin-left: -15px;
    margin-right: -15px;
}

.privilege-row > div {
    padding-left: 15px;
    padding-right: 15px;
    margin-bottom: 30px;
}