/* 全局样式 */
:root {
    --primary-color: #4f46e5;
    --secondary-color: #818cf8;
    --accent-color: #c7d2fe;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --gray-color: #94a3b8;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

a:hover {
    color: var(--secondary-color);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
}

.section-description {
    font-size: 1.2rem;
    color: var(--gray-color);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.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;
}

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

.btn-primary {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.4);
    color: white;
}

.btn-outline {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    color: white;
}

.btn-contact {
    background: linear-gradient(135deg, #07C160 0%, #06AD56 100%);
    color: white;
    box-shadow: 0 4px 16px rgba(7, 193, 96, 0.3);
}

.btn-contact:hover {
    background: linear-gradient(135deg, #06AD56 0%, #059B4C 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(7, 193, 96, 0.4);
    color: white;
}

/* 导航栏 */
.main-nav {
    background-color: white;
    box-shadow: var(--box-shadow);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
}

.main-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: var(--dark-color);
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-contact-btn {
    background: linear-gradient(135deg, #07C160 0%, #06AD56 100%);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    box-shadow: 0 2px 8px rgba(7, 193, 96, 0.2);
}

.nav-contact-btn:hover {
    background: linear-gradient(135deg, #06AD56 0%, #059B4C 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(7, 193, 96, 0.3);
    color: white;
}

.cta-button a {
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius);
}

.cta-button a:hover {
    background-color: var(--secondary-color);
    color: white;
}

.mobile-menu {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 英雄区 */
.hero {
    padding: 10rem 0 5rem;
    background: linear-gradient(135deg, #4f46e5 0%, #818cf8 100%);
    color: white;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.hero h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero .tagline {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    white-space: nowrap;
}

.hero .subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

/* 产品优势 */
.advantages {
    padding: 5rem 0;
    background-color: white;
}

.advantage-cards {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
}

.advantage-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 8px 32px rgba(79, 70, 229, 0.12);
    transition: all 0.4s ease;
    border: 1px solid rgba(79, 70, 229, 0.08);
    position: relative;
    overflow: hidden;
    max-width: 600px;
    width: 100%;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(79, 70, 229, 0.2);
    border-color: rgba(79, 70, 229, 0.15);
}

.advantage-card .icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.advantage-card h3 {
    font-size: 1.6rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
    font-weight: 700;
}

.advantage-card p {
    color: var(--gray-color);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.advantage-card ul {
    margin-top: 1.5rem;
    padding-left: 0;
    list-style: none;
}

.advantage-card li {
    margin-bottom: 0.8rem;
    color: var(--dark-color);
    position: relative;
    padding-left: 1.5rem;
    line-height: 1.6;
}

.advantage-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
    font-size: 1.1rem;
}

.contact-info {
    text-align: center;
    margin-top: 2rem;
}

.highlight {
    background-color: var(--accent-color);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-weight: 600;
}

/* 什么是Claude Code & CodeX */
.what-is {
    padding: 5rem 0;
    background-color: var(--light-color);
}

/* 产品对比卡片 */
.product-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.product-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    padding: 3rem 2.5rem;
    box-shadow: 0 10px 40px rgba(79, 70, 229, 0.12);
    transition: all 0.4s ease;
    border: 1px solid rgba(79, 70, 229, 0.08);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(79, 70, 229, 0.2);
    border-color: rgba(79, 70, 229, 0.15);
}

.product-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
    text-align: center;
}

.product-card h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    text-align: center;
    color: var(--dark-color);
    font-weight: 700;
}

.product-subtitle {
    text-align: center;
    color: var(--gray-color);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    font-weight: 500;
}

.product-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-features li {
    margin-bottom: 1.2rem;
    padding-left: 0;
    line-height: 1.7;
    color: var(--dark-color);
    font-size: 1rem;
    position: relative;
}

.product-features li:last-child {
    margin-bottom: 0;
}

.comparison {
    margin-bottom: 4rem;
}

.comparison h3 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
    color: var(--dark-color);
    font-weight: 700;
}

.comparison-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 992px) {
    .comparison-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.comparison-column {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.comparison-column::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.comparison-column:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.comparison-column h4 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 700;
    color: var(--dark-color);
}

.comparison-column ul {
    margin-bottom: 2rem;
    list-style: none;
    padding: 0;
}

.comparison-column li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    padding: 0.8rem 0;
    font-size: 1rem;
    line-height: 1.6;
}

.comparison-column li:not(:last-child) {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.total-time {
    font-weight: 700;
    font-size: 1.3rem;
    text-align: center;
    padding: 1.2rem;
    border-radius: 12px;
    margin-top: 1.5rem;
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.efficiency {
    margin-top: 1.5rem;
    text-align: center;
    font-weight: 700;
    font-size: 1.4rem;
    padding: 1rem;
    border-radius: 12px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.traditional::before {
    background: linear-gradient(90deg, #6b7280, #9ca3af);
}

.traditional .total-time {
    background: linear-gradient(135deg, #6b7280 0%, #9ca3af 100%);
}

.claude-code::before {
    background: linear-gradient(90deg, #10b981, #059669);
}

.claude-code .total-time {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
}

.claude-code h4 {
    background: linear-gradient(135deg, #10b981, #059669);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.codex::before {
    background: linear-gradient(90deg, #8b5cf6, #6366f1);
}

.codex .total-time {
    background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 100%);
}

.codex h4 {
    background: linear-gradient(135deg, #8b5cf6, #6366f1);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 功能 */
.features {
    margin-bottom: 4rem;
}

.features h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
}

/* 系统要求 */
.system-requirements h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.requirement-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--box-shadow);
}

.requirement-card h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    text-align: center;
}

.requirement-card ul {
    padding-left: 1.5rem;
    list-style-type: disc;
}

.requirement-card li {
    margin-bottom: 0.5rem;
}

/* 为什么选择 */
.why-choose {
    padding: 5rem 0;
    background-color: white;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.advantage-item {
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.advantage-item:hover {
    transform: translateY(-5px);
}

.advantage-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* 快速开始 */
.quick-start {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.quick-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.quick-step {
    text-align: center;
    background: white;
    border-radius: 16px;
    padding: 2.5rem 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.quick-step:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.quick-step .step-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.5rem;
    margin: 0 auto 1.5rem;
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.3);
}

.quick-step h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
    font-weight: 700;
}

.quick-step p {
    color: var(--gray-color);
    line-height: 1.6;
}

.settings-config {
    max-width: 1000px;
    margin: 0 auto;
}

.settings-config h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
    font-weight: 700;
}

/* 快速配置步骤 */
.quick-config-steps {
    display: grid;
    gap: 2rem;
    margin-bottom: 3rem;
}

.quick-config-step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.config-step-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.5rem;
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.3);
}

.config-step-content {
    flex: 1;
}

.config-step-content h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
    font-weight: 700;
}

.config-step-content p {
    color: var(--gray-color);
    margin-bottom: 1rem;
}

.platform-commands {
    display: grid;
    gap: 1.5rem;
    margin-top: 1rem;
}

.platform-cmd {
    background: white;
    border-radius: 8px;
    padding: 1.2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.platform-cmd strong {
    display: block;
    margin-bottom: 0.8rem;
    color: var(--primary-color);
    font-size: 1rem;
}

.config-description {
    text-align: center;
    color: var(--gray-color);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.config-locations {
    margin-bottom: 2rem;
}

.config-item {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.config-item strong {
    display: block;
    margin-bottom: 1rem;
    color: var(--dark-color);
    font-size: 1.1rem;
}

.config-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.config-item li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
    color: var(--gray-color);
    line-height: 1.6;
}

.config-item li::before {
    content: '📁';
    position: absolute;
    left: 0;
    top: 0;
}

.config-example {
    margin-bottom: 3rem;
}

.config-header {
    background: linear-gradient(135deg, #374151 0%, #1f2937 100%);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 12px 12px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
}

.copy-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.config-content {
    background: #1e293b;
    color: #e2e8f0;
    padding: 1.5rem 2rem;
    border-radius: 0 0 12px 12px;
    margin: 0;
    overflow-x: auto;
    font-family: 'Courier New', 'Consolas', 'Monaco', monospace;
    font-size: 0.95rem;
    line-height: 1.8;
    white-space: pre;
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.env-variables {
    margin-bottom: 3rem;
}

.env-variables h4 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
    text-align: center;
    font-weight: 700;
}

.env-list {
    display: grid;
    gap: 1rem;
}

.env-item {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.env-item strong {
    display: block;
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 0.5rem;
    font-family: 'Courier New', monospace;
}

.env-item span {
    color: var(--gray-color);
    font-size: 0.95rem;
    line-height: 1.5;
}

.usage-tip {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-radius: 12px;
    padding: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    border: 1px solid rgba(59, 130, 246, 0.1);
}

.tip-icon {
    font-size: 1.5rem;
    margin-top: 0.2rem;
}

.tip-content strong {
    display: block;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.tip-content p {
    color: var(--gray-color);
    margin: 0;
    line-height: 1.6;
}

.tip-content p a {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: underline;
}

.tip-content p a:hover {
    color: var(--secondary-color);
}

/* 安装步骤 */
.installation {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.tabs {
    background-color: white;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(79, 70, 229, 0.12);
    overflow: hidden;
    border: 1px solid rgba(79, 70, 229, 0.08);
}

.tab-header {
    display: flex;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 12px;
    padding: 6px;
    margin-bottom: 2rem;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
}

.tab-btn {
    padding: 1rem 2rem;
    background-color: transparent;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    flex: 1;
    text-align: center;
    border-radius: 8px;
    color: var(--gray-color);
    position: relative;
}

.tab-btn:hover {
    color: var(--primary-color);
    background-color: rgba(79, 70, 229, 0.05);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
    transform: translateY(-1px);
}

.tab-content {
    display: none;
    padding: 2.5rem;
}

.tab-content.active {
    display: block;
}

.tab-content h3 {
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.install-subtitle {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--dark-color);
    font-weight: 700;
}

/* 子标签页样式 */
.sub-tabs {
    margin-top: 2rem;
}

.sub-tab-header {
    display: flex;
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 1.5rem;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
}

.sub-tab-btn {
    padding: 0.8rem 1.5rem;
    background-color: transparent;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s ease;
    flex: 1;
    text-align: center;
    border-radius: 7px;
    color: var(--gray-color);
    position: relative;
}

.sub-tab-btn:hover {
    color: var(--primary-color);
    background-color: rgba(79, 70, 229, 0.05);
}

.sub-tab-btn.active {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.2);
}

.sub-tab-content {
    display: none;
}

.sub-tab-content.active {
    display: block;
}

.installation-steps {
    margin-top: 1.5rem;
}

.step-container {
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.08);
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid rgba(79, 70, 229, 0.05);
    transition: all 0.3s ease;
}

.step-container:hover {
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.12);
    transform: translateY(-2px);
}

.step-number {
    display: inline-block;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 36px;
    font-weight: 700;
    margin-right: 1rem;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.step-title {
    display: inline-block;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.step-content {
    margin-left: 2.5rem;
}

.step-content p {
    margin-bottom: 0.8rem;
}

.step-content ul {
    list-style-type: disc;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
}

.step-content li {
    margin-bottom: 0.4rem;
}

.step-content h5 {
    font-size: 1.1rem;
    margin: 1rem 0 0.5rem 0;
    color: var(--primary-color);
}

.step-content h6 {
    font-size: 1rem;
    margin: 0.8rem 0 0.5rem 0;
    color: var(--dark-color);
}

.code-block {
    background-color: #1e293b;
    color: #e2e8f0;
    padding: 1.2rem 1.5rem;
    border-radius: 8px;
    margin: 1rem 0;
    overflow-x: auto;
    font-family: 'Courier New', 'Consolas', 'Monaco', monospace;
    font-size: 0.95rem;
    line-height: 1.8;
    white-space: pre-wrap;
    word-wrap: break-word;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.note {
    background-color: var(--accent-color);
    padding: 0.8rem;
    border-radius: var(--border-radius);
    margin: 0.8rem 0;
}

.note strong {
    color: var(--primary-color);
}

.platform-specific {
    margin: 1.5rem 0;
}

.platform-item {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(79, 70, 229, 0.03);
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}

.platform-item:last-child {
    margin-bottom: 0;
}

.platform-item strong {
    display: block;
    margin-bottom: 0.8rem;
    color: var(--primary-color);
    font-size: 1.05rem;
}

.platform-item p {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.platform-item ol {
    margin-left: 1.2rem;
    margin-top: 0.8rem;
}

.platform-item ol li {
    margin-bottom: 0.5rem;
}

.platform-item ul {
    margin-left: 1.5rem;
}

.platform-item ul li {
    margin-bottom: 0.3rem;
}

/* 命令参考 */
.commands {
    padding: 5rem 0;
    background-color: white;
}

.command-category {
    margin-bottom: 3rem;
}

.category-title {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.category-description {
    margin-bottom: 1.5rem;
    color: var(--gray-color);
}

.command-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.command-table th,
.command-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.command-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
}

.command-table tr:last-child td {
    border-bottom: none;
}

.command-table tr:hover {
    background-color: #f8fafc;
}

.command-name {
    font-family: monospace;
    font-weight: 600;
    color: var(--primary-color);
}

.example-section {
    margin-top: 4rem;
}

.example-title {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.example-card {
    background-color: #f8fafc;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--box-shadow);
}

.example-card h4 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.example-card p {
    margin-bottom: 1rem;
}

.command-example {
    background-color: #1e293b;
    color: #e2e8f0;
    padding: 1.2rem 1.5rem;
    border-radius: 8px;
    margin: 1rem 0;
    font-family: 'Courier New', 'Consolas', 'Monaco', monospace;
    overflow-x: auto;
    font-size: 0.95rem;
    line-height: 1.8;
    white-space: pre-wrap;
    word-wrap: break-word;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.view-more {
    text-align: center;
    margin-top: 2rem;
}

/* 动态计费 */
.billing {
    padding: 5rem 0;
    background-color: #ffffff;
}

.billing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.billing-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(79, 70, 229, 0.12);
    border: 1px solid rgba(79, 70, 229, 0.08);
}

.billing-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.rules-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem 0;
}

.rules-list li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.6rem;
}

.rules-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.steps-list {
    margin: 0.5rem 0 1rem 1.25rem;
}

.steps-list li {
    margin: 0.25rem 0;
    line-height: 1.6;
}

.billing-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 0.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem 0.9rem;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    outline: none;
    background: #ffffff;
}

.form-group input[type="range"] {
    padding: 0;
}

.help-text {
    font-size: 0.85rem;
    color: var(--gray-color);
}

.inline-value {
    color: var(--primary-color);
    font-weight: 700;
    margin-left: 0.25rem;
}

.result-card {
    margin-top: 1.25rem;
    background: white;
    border-radius: 12px;
    border: 1px solid #e5e7eb;
    padding: 1rem 1.25rem;
}

.result-card.compact {
    padding: 0.75rem 1rem;
}

.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px dashed #e5e7eb;
}

.result-row:last-child {
    border-bottom: none;
}

.breakdown {
    margin-top: 0.75rem;
    color: var(--gray-color);
    font-size: 0.95rem;
}

.formula {
    margin: 1rem 0;
}

.formula-note {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.computed-prices {
    margin: 0.25rem 0 0.75rem;
    color: var(--dark-color);
    font-weight: 600;
}

@media (max-width: 992px) {
    .billing-grid {
        grid-template-columns: 1fr;
    }
}

/* 额度包优惠 */
.bundles {
    padding: 4rem 0 5rem;
    background: #fff;
}

.bundle-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 16px;
    padding: 1rem 1rem 1.5rem;
    box-shadow: 0 8px 32px rgba(79, 70, 229, 0.12);
    border: 1px solid rgba(79, 70, 229, 0.08);
}

.bundle-header {
    background: linear-gradient(90deg, #1e40af, #065f46);
    color: #fff;
    padding: 0.9rem 1.2rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
}

.bundle-icon {
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.2));
}

.bundle-table {
    width: 100%;
    border-collapse: collapse;
    background: #f5f5f4;
    border-radius: 12px;
    overflow: hidden;
}

.bundle-table th,
.bundle-table td {
    padding: 1rem;
    border-bottom: 1px solid #e5e7eb;
    text-align: left;
}

.bundle-table thead th {
    background: #e5e7eb;
    color: #111827;
}

.bundle-table .to {
    color: #047857;
    font-weight: 700;
}

.bundle-table .discount {
    color: #b45309;
    font-weight: 700;
}

.bundle-table tr:last-child td {
    border-bottom: none;
}

.recommended {
    background: #fff7ed;
}

.enterprise {
    background: #f3f4f6;
}

.badge.tip {
    display: inline-block;
    margin-left: 8px;
    font-size: 0.8rem;
    color: #1f2937;
    background: #fde68a;
    padding: 2px 8px;
    border-radius: 999px;
    border: 1px solid #f59e0b;
}

.muted-sub td {
    font-size: 0.9rem;
    color: #6b7280;
    background: #fafafa;
}

.bundle-notes {
    margin-top: 0.75rem;
    color: #6b7280;
    font-size: 0.95rem;
}

.contact-actions {
    margin-top: 1rem;
    display: flex;
    gap: 1rem;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.2rem;
    border-radius: 10px;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.contact-btn.wechat { /* 微信品牌色 */
    background: #07C160;
}

.contact-btn .fa-weixin {
    font-size: 1.1rem;
}

/* 用户组倍率 */
.tiers {
    padding: 4rem 0 5rem;
    background: #fafafa;
}

.tier-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 16px;
    padding: 1rem 1rem 1.5rem;
    box-shadow: 0 8px 32px rgba(79, 70, 229, 0.12);
    border: 1px solid rgba(79, 70, 229, 0.08);
}

.tier-header {
    background: linear-gradient(90deg, #312e81, #3f2b96);
    color: #fff;
    padding: 0.9rem 1.2rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    font-weight: 700;
}

.tier-table {
    width: 100%;
    border-collapse: collapse;
    background: #f5f5f4;
    border-radius: 12px;
    overflow: hidden;
}

.tier-table th,
.tier-table td {
    padding: 1rem;
    border-bottom: 1px solid #e5e7eb;
    text-align: left;
}

.tier-table thead th {
    background: #e5e7eb;
    color: #111827;
}

.tier-table .busy {
    color: #7c3aed;
    font-weight: 700;
}

.tier-table .idle {
    color: #047857;
    font-weight: 700;
}

.tier1 { background: #ecfdf5; }
.tier2 { background: #fff7ed; }

.tier-notes {
    margin-top: 0.75rem;
    color: #6b7280;
    font-size: 0.95rem;
}

/* 常见问题 */
.faq {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    background-color: white;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.accordion-header {
    padding: 1.5rem;
    cursor: pointer;
    font-weight: 600;
    position: relative;
}

.accordion-header:after {
    content: '+';
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
}

.accordion-item.active .accordion-header:after {
    content: '-';
}

.accordion-content {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: var(--transition);
}

.accordion-item.active .accordion-content {
    padding: 0 1.5rem 1.5rem;
    max-height: 1000px;
}

/* CTA */
.cta {
    padding: 5rem 0;
    background: linear-gradient(135deg, #4f46e5 0%, #818cf8 100%);
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.join-group {
    margin-top: 2rem;
}

.join-group p {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
}

/* 页脚 */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    margin-bottom: 3rem;
}

.footer-logo h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.footer-logo p {
    color: var(--gray-color);
    white-space: nowrap;
    margin: 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: var(--gray-color);
}

.footer-bottom p {
    white-space: nowrap;
    margin: 0;
}

.contact p {
    margin-bottom: 0.5rem;
}

/* 弹窗样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #e2e8f0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 16px 16px 0 0;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray-color);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.modal-body {
    padding: 2rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-method {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 12px;
    border: 1px solid rgba(7, 193, 96, 0.1);
}

.method-icon {
    margin-bottom: 1rem;
}

.method-icon i {
    font-size: 3rem;
    color: #07C160;
    background: linear-gradient(135deg, #07C160, #06AD56);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-method h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
    font-weight: 700;
}

.contact-method p {
    color: var(--gray-color);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.qr-container {
    margin: 1.5rem 0;
    display: flex;
    justify-content: center;
}

.qr-code {
    width: 200px;
    height: 200px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    border: 3px solid #07C160;
    transition: transform 0.3s ease;
}

.qr-code:hover {
    transform: scale(1.05);
}

.wechat-id-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(7, 193, 96, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(7, 193, 96, 0.1);
}

.wechat-id-label {
    font-weight: 600;
    color: var(--dark-color);
}

.wechat-id {
    font-family: 'Courier New', monospace;
    font-weight: 700;
    color: #07C160;
    font-size: 1.1rem;
    background: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: 1px solid rgba(7, 193, 96, 0.2);
}

.copy-btn {
    background: linear-gradient(135deg, #07C160 0%, #06AD56 100%);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.copy-btn:hover {
    background: linear-gradient(135deg, #06AD56 0%, #059B4C 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(7, 193, 96, 0.3);
}

.copy-btn:active {
    transform: translateY(0);
}

.copy-btn.copied {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .nav-contact-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .hero .tagline {
        font-size: 1.2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 300px;
        margin-bottom: 0;
    }
    
    .footer-bottom {
        text-align: center;
    }
    
    .footer-bottom .contact {
        margin-top: 1rem;
    }
}

@media (max-width: 576px) {
    .section-title {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }
    
    .hero {
        padding: 8rem 0 4rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .advantage-cards,
    .comparison-container,
    .feature-grid,
    .requirements-grid,
    .advantages-grid,
    .product-comparison {
        grid-template-columns: 1fr;
    }
    
    .product-comparison {
        gap: 2rem;
    }
    
    .product-card {
        padding: 2.5rem 2rem;
    }
    
    .product-icon {
        font-size: 3rem;
    }
    
    .product-card h3 {
        font-size: 1.7rem;
    }
    
    .product-subtitle {
        font-size: 1rem;
    }
    
    .product-features li {
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }
    
    .advantage-card {
        padding: 2rem;
        max-width: none;
    }
    
    .comparison-column {
        padding: 2rem;
        margin-bottom: 2rem;
    }
    
    .comparison-column:hover {
        transform: translateY(-4px);
    }
    
    .comparison h3 {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }
    
    .efficiency {
        font-size: 1.2rem;
        padding: 0.8rem;
    }
    
    .total-time {
        font-size: 1.1rem;
        padding: 1rem;
    }
    
    .step-container {
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .step-number {
        width: 32px;
        height: 32px;
        line-height: 32px;
        font-size: 0.8rem;
        margin-right: 0.8rem;
    }
    
    .step-content {
        margin-left: 2.5rem;
    }
    
    .tab-btn {
        padding: 0.8rem 1rem;
        font-size: 0.9rem;
    }
    
    .code-block {
        font-size: 0.85rem;
        padding: 1rem 1.2rem;
        line-height: 1.7;
    }
    
    .command-table th,
    .command-table td {
        padding: 0.8rem 0.5rem;
        font-size: 0.9rem;
    }
    
    .example-card {
        padding: 1rem;
    }
    
    .command-example {
        font-size: 0.85rem;
        padding: 1rem 1.2rem;
        line-height: 1.7;
    }
    
    .config-content {
        font-size: 0.85rem;
        padding: 1.2rem 1.5rem;
        line-height: 1.7;
    }
    
    .quick-steps {
        grid-template-columns: 1fr;
        gap: 2rem;
        margin-bottom: 3rem;
    }
    
    .quick-step {
        padding: 2rem 1.5rem;
    }
    
    .quick-step .step-number {
        width: 40px;
        height: 40px;
        font-size: 1.3rem;
    }
    
    .quick-config-step {
        flex-direction: column;
        gap: 1rem;
    }
    
    .config-step-number {
        width: 40px;
        height: 40px;
        font-size: 1.3rem;
        align-self: flex-start;
    }
    
    .platform-commands {
        gap: 1rem;
    }
    
    .platform-cmd {
        padding: 1rem;
    }
    
    .settings-config h3 {
        font-size: 1.6rem;
    }
    
    .config-item {
        padding: 1.5rem;
    }
    
    .config-header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .usage-tip {
        padding: 1.5rem;
        flex-direction: column;
        text-align: center;
    }
    
    .tip-icon {
        align-self: center;
    }
    
    /* 弹窗移动端样式 */
    .modal-content {
        width: 95%;
        max-width: none;
        margin: 1rem;
    }
    
    .modal-header {
        padding: 1rem 1.5rem;
    }
    
    .modal-header h3 {
        font-size: 1.3rem;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .qr-code {
        width: 160px;
        height: 160px;
    }
    
    .wechat-id-container {
        flex-direction: column;
        gap: 0.8rem;
        text-align: center;
    }
    
    .wechat-id {
        font-size: 1rem;
        padding: 0.4rem 0.8rem;
    }
    
    .copy-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.95rem;
    }
}