/* 宣传页面共享样式 - 统一配色方案 */

@import url('./variables.css');

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

body {
    font-family: var(--font-family);
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--bg-primary);
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 导航栏 */
.navbar {
    background: var(--bg-secondary);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: var(--font-size-2xl);
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

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

.nav-auth-group {
    display: flex;
    gap: 15px;
    align-items: center;
    list-style: none;
}

.nav-menu a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-normal);
}

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

.nav-cta {
    background: var(--primary-gradient);
    color: var(--text-white) !important;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

/* 移动端菜单按钮（汉堡菜单） */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

/* 遮罩层（默认隐藏） */
.nav-overlay {
    display: none;
}

.nav-toggle span {
    width: 100%;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* 页面容器 */
.page-container {
    min-height: calc(100vh - 200px);
}

.page-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Shared section scaffolding */
.section {
    padding: 80px 0;
}

.section-muted {
    background: #f7f9fc;
}

.section-contrast {
    background: linear-gradient(135deg, #0f172a 0%, #1c2752 100%);
    color: #f8fbff;
}

.section-heading {
    max-width: 720px;
    margin: 0 auto 50px;
    text-align: center;
}

.section-heading-left {
    text-align: left;
    margin-left: 0;
}

.section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
}

.section-title-sm {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.section-description {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

.grid {
    display: grid;
    gap: 24px;
}

.grid-cols-2 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-cols-3 {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.grid-cols-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.card {
    background: #fff;
    border-radius: 22px;
    padding: 28px;
    border: 1px solid rgba(15, 23, 42, 0.06);
    box-shadow: 0 12px 40px rgba(15, 23, 42, 0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.1);
}

.card-contrast {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.15);
    color: inherit;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(102, 126, 234, 0.12);
    color: #4c59c6;
    font-size: 0.85rem;
    font-weight: 600;
}

.pill-success {
    background: rgba(16, 185, 129, 0.15);
    color: #059669;
}

.pill-warning {
    background: rgba(245, 158, 11, 0.18);
    color: #b45309;
}

.stat-card {
    padding: 32px;
    border-radius: 24px;
    background: var(--bg-secondary);
    border: 1px solid rgba(102, 126, 234, 0.2);
    text-align: center;
}

.stat-value {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-secondary);
    margin-top: 8px;
    font-size: 0.95rem;
}

.highlight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}

.highlight-card {
    padding: 22px;
    border-radius: 16px;
    background: #fff;
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.highlight-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.highlight-card h5 {
    margin: 0 0 8px 0;
    color: var(--primary-color);
    font-size: 1rem;
}

.highlight-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.cta-banner {
    padding: 32px;
    border-radius: 28px;
    background: linear-gradient(135deg, #5b6bee 0%, #7c3aed 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
    box-shadow: 0 20px 60px rgba(91, 107, 238, 0.3);
}

.cta-banner p {
    margin: 0;
    opacity: 0.92;
}

.btn-ghost {
    padding: 12px 26px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s ease;
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
}

.input-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
    font-weight: 600;
    color: #1f2a37;
    font-size: 0.95rem;
}

.input-control {
    width: 100%;
    border-radius: 14px;
    border: 1px solid rgba(15, 23, 42, 0.12);
    padding: 14px 16px;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    background: #fff;
}

.input-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.12);
}

.form-card {
    background: #fff;
    border-radius: 24px;
    padding: 32px;
    box-shadow: 0 25px 70px rgba(15, 23, 42, 0.08);
    border: 1px solid rgba(15, 23, 42, 0.06);
}

.form-grid {
    display: grid;
    gap: 20px;
}

.chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.chip {
    border-radius: 999px;
    border: 1px solid rgba(15, 23, 42, 0.15);
    padding: 10px 18px;
    font-weight: 600;
    font-size: 0.95rem;
    background: #fff;
    cursor: pointer;
    transition: all 0.2s ease;
}

.chip:hover {
    border-color: #667eea;
    color: #4c51bf;
    background: rgba(102, 126, 234, 0.08);
}

.chip.active {
    background: rgba(102, 126, 234, 0.12);
    border-color: #667eea;
    color: #4c51bf;
    box-shadow: inset 0 0 0 1px rgba(102, 126, 234, 0.2);
}

.alert {
    border-radius: 16px;
    padding: 16px 20px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: 0.95rem;
    line-height: 1.6;
}

.alert-success {
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #065f46;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.25);
    color: #92400e;
}

.list-check {
    list-style: none;
    padding-left: 0;
    display: grid;
    gap: 12px;
}

.list-check li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    color: #4b5563;
}

.list-check li::before {
    content: '✔';
    color: #10b981;
    font-weight: 700;
    margin-top: 2px;
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 40px 0 20px;
    margin-top: 60px;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    color: var(--text-white);
    margin-bottom: 20px;
    font-size: var(--font-size-lg);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.footer-section a:hover {
    color: var(--text-white);
}

.footer-bottom {
    border-top: 1px solid var(--bg-dark-secondary);
    padding-top: 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* 首页特定样式 */
.hero {
    background: var(--primary-gradient);
    color: var(--text-white);
    padding: 100px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 15px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
    display: inline-block;
}

.btn-primary {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255,255,255,0.3);
}

.btn-secondary {
    background: rgba(255,255,255,0.2);
    color: var(--text-white);
    border: 2px solid var(--text-white);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

/* 功能特性区域 */
.features {
    padding: 80px 0;
    background: var(--bg-tertiary);
}

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

.feature-card {
    background: var(--bg-secondary);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 15px;
}

/* 内容区域 */
.content-section {
    padding: 60px 0;
}

.content-section h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--text-primary);
    text-align: center;
}

.content-section p {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 20px;
}

/* 条款页面样式 */
.terms-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

.terms-container h1 {
    font-size: 36px;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.terms-container h2 {
    font-size: 28px;
    margin-top: 40px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.terms-container h3 {
    font-size: 22px;
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.terms-container p {
    margin-bottom: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.terms-container ul, .terms-container ol {
    margin-left: 30px;
    margin-bottom: 20px;
}

.terms-container li {
    margin-bottom: 10px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.terms-container .last-updated {
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
    font-style: italic;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 显示移动端菜单按钮 */
    .nav-toggle {
        display: flex;
    }
    
    /* 显示遮罩层 */
    .nav-overlay {
        display: block;
    }
    
    /* 隐藏桌面端菜单 */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        align-items: flex-start;
        padding: 80px 30px 30px;
        gap: 0;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        z-index: 1000;
        overflow-y: auto;
    }
    
    /* 显示激活的菜单 */
    .nav-menu.active {
        right: 0;
    }
    
    /* 菜单项样式 */
    .nav-menu li {
        width: 100%;
        padding: 0;
        margin: 0;
        border-bottom: 1px solid var(--border-light);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-menu a {
        display: block;
        width: 100%;
        padding: 15px 0;
        font-size: 16px;
        color: var(--text-primary);
    }
    
    .nav-menu a:hover {
        color: var(--primary-color);
        background: none;
    }
    
    /* 导航按钮组样式 */
    .nav-auth-group {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }
    
    .nav-auth-group a {
        width: 100%;
        padding: 15px 0;
        text-align: left;
        border-bottom: 1px solid var(--border-light);
    }
    
    .nav-auth-group a:last-child {
        border-bottom: none;
    }
    
    .nav-cta {
        width: 100%;
        text-align: center;
        padding: 15px 20px;
        margin: 10px 0;
    }
    
    /* 移动端遮罩层样式 */
    .nav-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
        z-index: 999;
    }
    
    /* 当菜单激活时显示遮罩 */
    .navbar.has-active-menu .nav-overlay {
        opacity: 1;
        visibility: visible;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* 小屏幕优化 */
@media (max-width: 480px) {
    .nav-menu {
        width: 100%;
        right: -100%;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .nav-logo img {
        height: 40px;
    }
}

/* ========== 订单页面样式 ========== */
.order-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

.order-form {
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.order-form.compact {
    border-radius: 28px;
    padding: 36px;
    box-shadow: 0 30px 80px rgba(15, 23, 42, 0.08);
}

.form-section {
    margin-bottom: 30px;
}

.form-section h3 {
    font-size: var(--font-size-xl);
    margin-bottom: 20px;
    color: var(--text-primary);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group-full {
    grid-column: 1 / -1;
}

.plan-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.plan-card {
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 20px;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
}

.plan-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-primary);
}

.plan-card.selected {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
}

.plan-card h4 {
    font-size: var(--font-size-xl);
    margin-bottom: 10px;
    color: var(--primary-color);
}

.plan-price {
    font-size: 32px;
    font-weight: bold;
    color: var(--text-primary);
    margin: 15px 0;
}

.plan-price .period {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.plan-features {
    list-style: none;
    text-align: left;
    margin-top: 20px;
}

.plan-features li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
}

.plan-features li:last-child {
    border-bottom: none;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group label .required {
    color: var(--error-color);
}

.period-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 18px;
}

.period-card {
    border: 1px solid rgba(15, 23, 42, 0.12);
    border-radius: 18px;
    padding: 20px;
    cursor: pointer;
    background: #fff;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.period-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    border: 2px solid transparent;
    pointer-events: none;
}

.period-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(15, 23, 42, 0.08);
}

.period-card.selected::after {
    border-color: #667eea;
}

.period-card h4 {
    margin: 0 0 12px 0;
    font-size: 1rem;
    color: #0f172a;
}

.period-card-price {
    border-radius: 16px;
    padding: 14px 16px;
    text-align: center;
    color: #fff;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #5b6bee, #7c3aed);
}

.period-card-price .value {
    font-size: 1.9rem;
    font-weight: 700;
    line-height: 1.1;
}

.period-card-price .note {
    font-size: 0.95rem;
    opacity: 0.85;
}

.period-card .saving {
    color: #059669;
    font-size: 0.85rem;
    font-weight: 600;
}

.seat-chip {
    padding: 12px 22px;
    border-radius: 999px;
    border: 1px solid rgba(15, 23, 42, 0.12);
    background: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.seat-chip:hover {
    border-color: #667eea;
    color: #4c51bf;
}

.seat-chip.active {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.12);
    color: #4c51bf;
    box-shadow: inset 0 0 0 1px rgba(102, 126, 234, 0.2);
}

.notice-card {
    background: #f0f4ff;
    border-radius: 20px;
    padding: 20px;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.order-summary.card {
    border-radius: 20px;
    padding: 24px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.order-summary {
    background: var(--bg-tertiary);
    padding: 20px;
    border-radius: var(--radius-lg);
    margin-top: 30px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-light);
}

.summary-row:last-child {
    border-bottom: none;
    font-size: var(--font-size-xl);
    font-weight: bold;
    margin-top: 10px;
    padding-top: 20px;
    border-top: 2px solid var(--primary-color);
}

.submit-order {
    width: 100%;
    padding: 15px;
    background: var(--primary-gradient);
    color: var(--text-white);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    margin-top: 30px;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.submit-order:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.submit-order:disabled {
    background: var(--text-tertiary);
    cursor: not-allowed;
    transform: none;
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    padding: 15px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    display: none;
    border-left: 3px solid var(--error-color);
}

.success-message {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    padding: 15px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    display: none;
    border-left: 3px solid var(--success-color);
}

/* ========== 使用指南页面样式 ========== */
.guide-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
}

.guide-header {
    text-align: center;
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--primary-color);
}

.guide-header h1 {
    font-size: 42px;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.guide-header p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.8;
}

.guide-section {
    margin-bottom: 60px;
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.guide-section h2 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-light);
}

.guide-section h3 {
    font-size: var(--font-size-2xl);
    color: var(--text-primary);
    margin-top: 30px;
    margin-bottom: 20px;
}

.guide-section h4 {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-top: 20px;
    margin-bottom: 10px;
}

.guide-section p {
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.guide-section ul, .guide-section ol {
    margin: 15px 0;
    padding-left: 30px;
    line-height: 1.8;
}

.guide-section li {
    margin-bottom: 10px;
    color: var(--text-secondary);
}

.intro-text {
    font-size: var(--font-size-lg);
    background: rgba(102, 126, 234, 0.05);
    padding: 20px;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
    margin-bottom: 30px;
}

.step-box {
    background: var(--bg-tertiary);
    padding: 20px;
    border-radius: var(--radius-md);
    margin: 20px 0;
    border-left: 4px solid var(--primary-color);
}

.step-box h4 {
    margin-top: 0;
    color: var(--primary-color);
}

.tip-box {
    background: rgba(245, 158, 11, 0.1);
    padding: 20px;
    border-radius: var(--radius-md);
    margin: 20px 0;
    border-left: 4px solid var(--warning-color);
}

.note-box {
    background: rgba(59, 130, 246, 0.1);
    padding: 20px;
    border-radius: var(--radius-md);
    margin: 20px 0;
    border-left: 4px solid var(--info-color);
}

.faq-box {
    background: var(--bg-tertiary);
    padding: 20px;
    border-radius: var(--radius-md);
    margin: 20px 0;
}

.faq-box h4 {
    color: var(--primary-color);
    margin-top: 0;
}

.faq-box p {
    margin-bottom: 0;
    margin-top: 10px;
}

pre {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 20px;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 15px 0;
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    color: var(--primary-color);
}

pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    background: var(--bg-secondary);
}

.comparison-table th,
.comparison-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

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

.comparison-table tr:hover {
    background: var(--bg-tertiary);
}

/* 响应式设计 - 指南页面 */
@media (max-width: 768px) {
    .guide-container {
        padding: 20px 15px;
    }

    .guide-section {
        padding: 25px 20px;
    }

    .guide-header h1 {
        font-size: 32px;
    }

    .guide-section h2 {
        font-size: 26px;
    }

    .comparison-table {
        font-size: 14px;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 10px 8px;
    }
}

/* ========== Hero区域样式类 ========== */
.hero-badges {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    justify-content: center;
}

.hero-badge {
    color: var(--text-white);
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.hero-badge-success {
    background: linear-gradient(135deg, #4caf50 0%, #2e7d32 100%);
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.hero-badge-info {
    background: linear-gradient(135deg, #2196f3 0%, #1565c0 100%);
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
}

.hero-badge-purple {
    background: linear-gradient(135deg, #9c27b0 0%, #7b1fa2 100%);
    box-shadow: 0 4px 15px rgba(156, 39, 176, 0.3);
}

.hero-title {
    font-size: clamp(32px, 5vw, 48px);
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-description {
    font-size: clamp(16px, 2vw, 20px);
    max-width: 800px;
    margin: 0 auto 30px;
    line-height: 1.8;
}

.hero-buttons-large {
    margin-bottom: 40px;
}

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

.hero-features-highlight {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    max-width: 900px;
    margin: 0 auto;
}

.hero-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    text-align: center;
}

.hero-feature-item {
    text-align: center;
}

.hero-feature-icon {
    font-size: 48px;
    margin-bottom: 10px;
}

.hero-feature-title {
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 18px;
}

.hero-feature-desc {
    color: #666;
    font-size: 14px;
    margin: 0;
}

/* ========== 内容区块样式类 ========== */
.content-section-white {
    background: white;
    padding: 80px 20px;
}

.content-section-gray {
    background: var(--bg-tertiary);
    padding: 80px 20px;
}

.content-section-gradient {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 80px 20px;
}

.section-title {
    text-align: center;
    font-size: clamp(32px, 4vw, 42px);
    margin-bottom: 50px;
    color: var(--text-primary);
}

.section-title-large {
    text-align: center;
    font-size: clamp(32px, 4vw, 36px);
    margin-bottom: 20px;
    color: var(--text-primary);
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

/* ========== 卡片样式类 ========== */
.benefit-card {
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border: 3px solid;
}

.benefit-card-success {
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
    border-color: #4caf50;
    box-shadow: 0 10px 30px rgba(76, 175, 80, 0.2);
}

.benefit-card-info {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    border-color: #2196f3;
    box-shadow: 0 10px 30px rgba(33, 150, 243, 0.2);
}

.benefit-card-purple {
    background: linear-gradient(135deg, #f3e5f5 0%, #e1bee7 100%);
    border-color: #9c27b0;
    box-shadow: 0 10px 30px rgba(156, 39, 176, 0.2);
}

.benefit-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.benefit-title {
    font-size: 28px;
    margin-bottom: 15px;
    font-weight: 700;
}

.benefit-card-success .benefit-title {
    color: #2e7d32;
}

.benefit-card-info .benefit-title {
    color: #1565c0;
}

.benefit-card-purple .benefit-title {
    color: #7b1fa2;
}

.benefit-text {
    font-size: 18px;
    line-height: 1.8;
    margin: 0;
}

.benefit-card-success .benefit-text {
    color: #1b5e20;
}

.benefit-card-info .benefit-text {
    color: #0d47a1;
}

.benefit-card-purple .benefit-text {
    color: #4a148c;
}

/* ========== 网格布局样式类 ========== */
.grid-auto-fit {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.grid-auto-fit-small {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.grid-auto-fit-pricing {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

/* ========== 价格卡片样式类 ========== */
.pricing-card {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 2px solid #e9ecef;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
}

.pricing-card-popular {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 2px solid #e9ecef;
    position: relative;
}

.pricing-card-popular:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
}

.pricing-card-best-value {
    background: white;
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 3px solid #4caf50;
    position: relative;
}

.pricing-card-best-value:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(76, 175, 80, 0.3);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.pricing-badge-popular {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.pricing-badge-best-value {
    background: #4caf50;
}

.pricing-icon {
    font-size: 32px;
    margin-bottom: 15px;
}

.pricing-plan-name {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 700;
}

.pricing-price-box {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 12px;
    margin: 20px 0;
    text-align: center;
}

.pricing-price-box-green {
    background: linear-gradient(135deg, #4caf50 0%, #45a049 100%);
    color: white;
    padding: 20px;
    border-radius: 12px;
    margin: 20px 0;
    text-align: center;
}

.pricing-price {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 8px;
}

.pricing-period {
    font-size: 20px;
    font-weight: 600;
    opacity: 0.95;
}

.pricing-save {
    color: #4caf50;
    font-size: 12px;
    margin-bottom: 25px;
    font-weight: 600;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 25px 0;
    text-align: left;
    color: #666;
    line-height: 2;
}

.pricing-features-popular {
    list-style: none;
    padding: 0;
    margin: 25px 0;
    text-align: left;
    line-height: 2;
    opacity: 0.95;
}

.pricing-features li {
    margin: 0;
}

.pricing-button {
    display: block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 20px;
    transition: opacity 0.3s;
}

.pricing-button:hover {
    opacity: 0.9;
}

.pricing-button-white {
    display: block;
    background: white;
    color: #667eea;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    margin-top: 20px;
    transition: opacity 0.3s;
}

.pricing-button-white:hover {
    opacity: 0.9;
}

.pricing-button-green {
    display: block;
    background: linear-gradient(135deg, #4caf50 0%, #2e7d32 100%);
    color: white;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    margin-top: 20px;
    transition: opacity 0.3s;
}

.pricing-button-green:hover {
    opacity: 0.9;
}

/* ========== 免费试用横幅样式类 ========== */
.free-trial-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 50px;
    border-radius: 20px;
    margin-bottom: 50px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
}

.free-trial-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.free-trial-title {
    font-size: 36px;
    margin-bottom: 15px;
    font-weight: 700;
}

.free-trial-features {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 30px;
    font-size: 18px;
}

.free-trial-button {
    display: inline-block;
    margin-top: 30px;
    background: white;
    color: #667eea;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 18px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s;
}

.free-trial-button:hover {
    transform: translateY(-3px);
}

/* ========== 关键卖点样式类 ========== */
.key-points-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.key-point-card {
    text-align: center;
}

.key-point-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.key-point-title {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 700;
}

.key-point-text {
    color: #666;
    line-height: 1.6;
}

/* ========== 使用限制样式类 ========== */
.usage-limits-section {
    background: #fffbf0;
    padding: 60px 20px;
}

.usage-limit-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border-left: 4px solid;
}

.usage-limit-card-warning {
    border-left-color: #ffc107;
}

.usage-limit-card-orange {
    border-left-color: #ff9800;
}

.usage-limit-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.usage-limit-title {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-primary);
    font-weight: 700;
}

.usage-limit-text {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.usage-limit-list {
    color: #666;
    line-height: 1.8;
    margin: 0;
    padding-left: 20px;
}

.usage-limit-list li {
    margin-bottom: 8px;
}

/* ========== 联系信息样式类 ========== */
.contact-info {
    text-align: center;
    margin-top: 30px;
}

.contact-info-item {
    font-size: 18px;
    margin: 10px 0;
}

.contact-info-link {
    color: var(--primary-color);
    text-decoration: none;
}

.contact-info-link:hover {
    text-decoration: underline;
}

/* ========== 响应式调整 ========== */
@media (max-width: 768px) {
    .hero-badges {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-badge {
        width: 100%;
        text-align: center;
    }
    
    .grid-auto-fit,
    .grid-auto-fit-small,
    .grid-auto-fit-pricing {
        grid-template-columns: 1fr;
    }
    
    .free-trial-features {
        flex-direction: column;
        gap: 15px;
    }
    
    .key-points-grid {
        grid-template-columns: 1fr;
    }
}