/* Demo 1 - 官方风格 */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

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

/* 导航栏 - 官方风格：居中、金色渐变 */
.navbar {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: bold;
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    background: linear-gradient(135deg, #ffd700 0%, #ffb700 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-menu a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #ffd700;
}

.nav-cta {
    background: linear-gradient(135deg, #ffd700 0%, #ffb700 100%);
    color: #1a1a2e;
    padding: 10px 24px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s;
}

.nav-cta:hover {
    transform: translateY(-2px);
}

/* Hero 区域 - 官方风格：居中大标题、金色渐变 */
.hero {
    margin-top: 70px;
    padding: 100px 20px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255,215,0,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255,183,0,0.1) 0%, transparent 50%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 56px;
    font-weight: bold;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffd700 0%, #ffb700 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 24px;
    margin-bottom: 15px;
    color: #ffd700;
}

.hero-desc {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 60px;
}

.btn {
    padding: 16px 32px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    font-size: 18px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, #ffd700 0%, #ffb700 100%);
    color: #1a1a2e;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(255,215,0,0.3);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid #ffd700;
}

.btn-secondary:hover {
    background: #ffd700;
    color: #1a1a2e;
}

.btn-icon {
    font-size: 20px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 60px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 42px;
    font-weight: bold;
    color: #ffd700;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 16px;
    opacity: 0.8;
}

/* 游戏特色 - 官方风格：圆角卡片 */
.features {
    padding: 80px 20px;
    background: #fff;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.section-subtitle {
    font-size: 18px;
    color: #666;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    background: #f9f9f9;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
    border-color: #ffd700;
}

.feature-icon {
    font-size: 56px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.feature-card p {
    font-size: 16px;
    line-height: 1.8;
    color: #666;
}

/* 职业介绍 - 官方风格：左右交替 */
.classes {
    padding: 80px 20px;
    background: #f5f5f5;
}

.class-showcase {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.class-item {
    display: flex;
    gap: 50px;
    align-items: center;
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.class-left {
    flex-direction: row;
}

.class-right {
    flex-direction: row-reverse;
}

.class-info {
    flex: 1;
}

.class-info h3 {
    font-size: 32px;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.class-desc {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: #666;
}

.class-features {
    list-style: none;
}

.class-features li {
    padding: 8px 0;
    font-size: 15px;
    color: #555;
}

.class-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.class-icon-large {
    font-size: 120px;
    background: linear-gradient(135deg, #ffd700 0%, #ffb700 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 经典副本 - 官方风格：网格卡片 */
.dungeons {
    padding: 80px 20px;
    background: #fff;
}

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

.dungeon-card {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s;
}

.dungeon-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(26,26,46,0.3);
}

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

.dungeon-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #ffd700;
}

.dungeon-card p {
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 20px;
    opacity: 0.9;
}

.dungeon-info {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.dungeon-level,
.dungeon-difficulty {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: bold;
}

.dungeon-level {
    background: rgba(255,215,0,0.2);
    color: #ffd700;
}

.dungeon-difficulty.easy {
    background: rgba(76,175,80,0.2);
    color: #4caf50;
}

.dungeon-difficulty.medium {
    background: rgba(255,152,0,0.2);
    color: #ff9800;
}

.dungeon-difficulty.hard {
    background: rgba(244,67,54,0.2);
    color: #f44336;
}

.dungeon-difficulty.hell {
    background: rgba(156,39,176,0.2);
    color: #9c27b0;
}

/* 社区活动 - 官方风格：三列布局 */
.community {
    padding: 80px 20px;
    background: #f5f5f5;
}

.community-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.community-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s;
}

.community-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.community-icon {
    font-size: 56px;
    margin-bottom: 20px;
}

.community-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.community-card p {
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: #666;
}

.community-link {
    color: #ffd700;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

.community-link:hover {
    color: #ffb700;
}

/* 下载区域 - 官方风格：大按钮 */
.download {
    padding: 100px 20px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
    text-align: center;
}

.download-content {
    max-width: 700px;
    margin: 0 auto;
}

.download h2 {
    font-size: 42px;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #ffd700 0%, #ffb700 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.download-content > p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 30px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 30px;
    border-radius: 15px;
    text-decoration: none;
    transition: all 0.3s;
    min-width: 250px;
}

.download-btn.primary {
    background: linear-gradient(135deg, #ffd700 0%, #ffb700 100%);
    color: #1a1a2e;
}

.download-btn.secondary {
    background: transparent;
    color: #fff;
    border: 2px solid #ffd700;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(255,215,0,0.3);
}

.download-icon {
    font-size: 36px;
}

.download-text {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.download-title {
    font-size: 18px;
    font-weight: bold;
}

.download-size {
    font-size: 14px;
    opacity: 0.8;
}

.download-info p {
    font-size: 16px;
    margin-bottom: 10px;
}

.download-note {
    font-size: 14px;
    opacity: 0.7;
}

/* FAQ - 官方风格：手风琴 */
.faq {
    padding: 80px 20px;
    background: #fff;
}

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

.faq-item {
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item:hover {
    border-color: #ffd700;
}

.faq-question {
    padding: 20px;
    background: #f9f9f9;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
    font-size: 16px;
}

.faq-icon {
    font-size: 24px;
    color: #ffd700;
    transition: transform 0.3s;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 500px;
}

.faq-answer p {
    font-size: 15px;
    line-height: 1.8;
    color: #666;
}

/* 页脚 - 官方风格：稳重 */
.footer {
    background: #1a1a2e;
    color: #fff;
    padding: 60px 20px 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #ffd700;
}

.footer-col p {
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.8;
}

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

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

.footer-col ul a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-col ul a:hover {
    opacity: 1;
    color: #ffd700;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 14px;
    opacity: 0.6;
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }
    
    .class-item {
        flex-direction: column !important;
    }
    
    .community-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}


/* ===== 服务器状态 ===== */
.servers-section {
    padding: 80px 0;
    background: #1a1a2e;
}
.servers-section .section-title { color: #fff; }
.servers-section .section-subtitle { color: rgba(255,255,255,0.6); }
.servers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}
.server-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(212,168,67,0.2);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s ease;
}
.server-card:hover {
    border-color: #d4a843;
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(212,168,67,0.15);
}
.server-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.server-header h3 {
    color: #d4a843;
    font-size: 1.1rem;
}
.server-status {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}
.status-hot { background: rgba(220,38,38,0.15); color: #ef4444; }
.status-good { background: rgba(34,197,94,0.15); color: #22c55e; }
.status-smooth { background: rgba(59,130,246,0.15); color: #3b82f6; }
.server-details { margin-bottom: 16px; }
.server-detail-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.detail-label { color: rgba(255,255,255,0.5); font-size: 0.85rem; }
.detail-value { color: #fff; font-weight: 600; font-size: 0.85rem; }
.progress-bar {
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.6s ease;
}
.progress-fill.hot { background: linear-gradient(90deg, #ef4444, #f97316); }
.progress-fill.good { background: linear-gradient(90deg, #22c55e, #10b981); }
.progress-fill.smooth { background: linear-gradient(90deg, #3b82f6, #6366f1); }
@media (max-width: 992px) {
    .servers-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
    .servers-grid { grid-template-columns: 1fr; }
}

/* ===== 装备展示 ===== */
.equipment-section {
    padding: 80px 0;
    background: #f5f5f5;
}
.equipment-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
}
.equipment-card {
    display: flex;
    gap: 20px;
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    border: 1px solid #e5e5e5;
    transition: all 0.3s ease;
}
.equipment-card:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
    transform: translateY(-2px);
}
.equip-icon {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
    background: #1a1a2e;
}
.equip-icon.pink-glow { box-shadow: 0 0 20px rgba(236,72,153,0.3); }
.equip-icon.gold-glow { box-shadow: 0 0 20px rgba(212,168,67,0.3); }
.equip-icon.blue-glow { box-shadow: 0 0 20px rgba(59,130,246,0.3); }
.equip-icon.purple-glow { box-shadow: 0 0 20px rgba(139,92,246,0.3); }
.equip-info h3 { font-size: 1.1rem; margin-bottom: 4px; }
.equip-rarity {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    margin-bottom: 8px;
}
.equip-rarity.pink { background: rgba(236,72,153,0.1); color: #ec4899; }
.equip-rarity.purple { background: rgba(139,92,246,0.1); color: #8b5cf6; }
.equip-info p { font-size: 0.85rem; color: #666; margin-bottom: 12px; line-height: 1.5; }
.equip-stats { list-style: none; padding: 0; }
.equip-stats li {
    font-size: 0.8rem;
    color: #d4a843;
    padding: 2px 0;
    font-weight: 600;
}
@media (max-width: 768px) {
    .equipment-grid { grid-template-columns: 1fr; }
}

/* ===== 玩家评价 ===== */
.reviews-section {
    padding: 80px 0;
    background: #1a1a2e;
}
.reviews-section .section-title { color: #fff; }
.reviews-section .section-subtitle { color: rgba(255,255,255,0.6); }
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
}
.review-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 28px;
    transition: all 0.3s ease;
}
.review-card:hover {
    border-color: rgba(212,168,67,0.3);
    background: rgba(255,255,255,0.08);
}
.review-stars {
    color: #d4a843;
    font-size: 1.1rem;
    margin-bottom: 12px;
}
.review-text {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 16px;
    font-style: italic;
}
.review-author {
    display: flex;
    align-items: center;
    gap: 12px;
}
.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #d4a843, #b8860b);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: bold;
    font-size: 0.9rem;
}
.author-info strong { color: #fff; font-size: 0.9rem; display: block; }
.author-info span { color: rgba(255,255,255,0.5); font-size: 0.75rem; }
@media (max-width: 768px) {
    .reviews-grid { grid-template-columns: 1fr; }
}

/* ===== 最新动态 ===== */
.news-section {
    padding: 80px 0;
    background: #fff;
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}
.news-card {
    background: #f9f9f9;
    border-radius: 12px;
    padding: 28px;
    border: 1px solid #eee;
    transition: all 0.3s ease;
}
.news-card:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
    transform: translateY(-2px);
}
.news-date {
    font-size: 0.8rem;
    color: #999;
    margin-bottom: 8px;
}
.news-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    margin-bottom: 12px;
}
.tag-update { background: rgba(59,130,246,0.1); color: #3b82f6; }
.tag-event { background: rgba(234,179,8,0.1); color: #ca8a04; }
.tag-pvp { background: rgba(239,68,68,0.1); color: #ef4444; }
.news-card h3 { font-size: 1.05rem; margin-bottom: 10px; color: #1a1a2e; }
.news-card p { font-size: 0.85rem; color: #666; line-height: 1.6; margin-bottom: 12px; }
.news-link { color: #d4a843; font-size: 0.85rem; text-decoration: none; font-weight: 600; }
.news-link:hover { text-decoration: underline; }
@media (max-width: 768px) {
    .news-grid { grid-template-columns: 1fr; }
}

/* ===== 新手指南 ===== */
.guide-section {
    padding: 80px 0;
    background: #f5f5f5;
}
.guide-steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
}
.guide-step {
    display: flex;
    gap: 20px;
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    border: 1px solid #e5e5e5;
    transition: all 0.3s ease;
}
.guide-step:hover {
    border-color: #d4a843;
    box-shadow: 0 4px 20px rgba(212,168,67,0.1);
}
.step-number {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, #d4a843, #b8860b);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: bold;
    font-size: 1.1rem;
    flex-shrink: 0;
}
.step-content h3 { font-size: 1rem; margin-bottom: 6px; color: #1a1a2e; }
.step-content p { font-size: 0.85rem; color: #666; line-height: 1.6; }
@media (max-width: 768px) {
    .guide-steps { grid-template-columns: 1fr; }
}



/* ===== 美化增强 ===== */
.hero { position: relative; overflow: hidden; }
.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(212,168,67,0.08) 0%, transparent 60%);
    pointer-events: none;
}
.hero-title {
    background: linear-gradient(135deg, #d4a843 0%, #f5c842 50%, #d4a843 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s ease-in-out infinite;
    background-size: 200% 100%;
}
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
.feature-card {
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, #d4a843, transparent);
    transition: left 0.5s ease;
}
.feature-card:hover::before {
    left: 100%;
}
.navbar {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.navbar.navbar-scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}
.stat-number {
    font-variant-numeric: tabular-nums;
}
.hero-data-note {
    max-width: 620px;
    margin: 24px auto 0;
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.85rem;
    line-height: 1.7;
}
.dungeon-card {
    position: relative;
    overflow: hidden;
}
.dungeon-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #d4a843, #f5c842);
    transform: scaleX(0);
    transition: transform 0.3s ease;
    transform-origin: left;
}
.dungeon-card:hover::after {
    transform: scaleX(1);
}

/* ===== 官方风格 - 补齐缺失组件 ===== */
.hero-image { margin-top: 30px; text-align: center; }
.class-images { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-top: 24px; }
.class-img { width: 80px; height: 80px; border: 2px solid rgba(218,165,32,.35); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 2rem; background: rgba(218,165,32,.06); }
.server-progress { height: 8px; background: rgba(255,255,255,.08); border-radius: 4px; overflow: hidden; margin-top: 8px; }
.server-progress .bar { height: 100%; background: linear-gradient(90deg,#f5d76e,#b8860b); border-radius: 4px; }
.data-note {
    max-width: 860px;
    margin: 24px auto 0;
    color: rgba(255, 255, 255, 0.72);
    text-align: center;
    font-size: 0.9rem;
    line-height: 1.7;
}
.faq-question:focus-visible,
.nav-menu a:focus-visible,
.nav-cta:focus-visible,
.btn:focus-visible,
.download-btn:focus-visible,
.footer a:focus-visible {
    outline: 3px solid #f5c842;
    outline-offset: 3px;
}
@media (max-width: 768px) {
    body { overflow-x: hidden; }
    .nav-container { padding: 0 16px; gap: 12px; }
    .nav-logo { gap: 6px; font-size: 18px; min-width: 0; }
    .logo-icon { font-size: 22px; }
    .nav-cta { flex-shrink: 0; padding: 9px 14px; border-radius: 20px; font-size: 14px; }
    .hero { padding: 72px 20px; }
    .hero-content { width: 100%; }
    .hero-title { font-size: clamp(2rem, 9vw, 2.5rem); line-height: 1.2; overflow-wrap: anywhere; }
    .hero-subtitle { font-size: 1.25rem; line-height: 1.5; }
    .hero-desc { font-size: 1rem; margin-bottom: 30px; }
    .hero-buttons { width: 100%; gap: 16px; margin-bottom: 42px; }
    .btn { width: 100%; justify-content: center; padding: 15px 20px; }
    .hero-stats { margin-top: 42px; }
    .hero-image img { width: min(100%, 800px); height: auto; }
    .data-note { padding: 0 8px; }
}