/* ============================================
   My Aviation - Main CSS
   翼起飞 主样式 — 儿童友好版
   设计理念：明亮、圆润、有趣、大触摸区、高对比度
   ============================================ */

/* ============================================
   通用布局
   ============================================ */
.page-content-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-2xl) 0;
}

.page-title {
    font-size: 2.2rem;
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-lg);
}

.page-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-xl);
}

/* ============================================
   站点头部 — 导航栏
   ============================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-white);
    transition: all var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner-wrap {
    border-bottom: 3px solid var(--color-cloud-2);
}

.site-header.scrolled .header-inner-wrap {
    border-bottom-color: var(--color-cloud-3);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: var(--spacing-lg);
}

/* Logo — 纸飞机图标 + 圆润文字 */
.site-logo { flex-shrink: 0; }

.logo-image-link {
    display: inline-flex;
    align-items: center;
}

.logo-img {
    display: block;
    height: 56px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-sky-deep);
}

.logo-icon-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--color-sky-1), var(--color-sky-3));
    color: var(--color-white);
    font-size: 1.4rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base);
}

.logo-link:hover .logo-icon-wrap {
    transform: rotate(-15deg) scale(1.1);
}

.logo-text {
    letter-spacing: -0.5px;
}

/* 导航菜单 */
.primary-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    list-style: none;
}

.nav-menu > li > a {
    display: flex;
    align-items: center;
    padding: 0.6rem 1.3rem;
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-text-1);
    text-decoration: none;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    min-height: 48px;
}

.nav-menu > li > a:hover,
.nav-menu > li.current-menu-item > a,
.nav-menu > li.current_page_item > a {
    background: var(--color-cloud);
    color: var(--color-sky-1);
    transform: translateY(-2px);
}

/* 下拉菜单 */
.nav-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    min-width: 200px;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
}

.nav-menu li { position: relative; }

.nav-menu li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-menu .sub-menu a {
    display: block;
    padding: 0.6rem 1.2rem;
    color: var(--color-text-1);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-weight: 600;
}

.nav-menu .sub-menu a:hover {
    background: var(--color-cloud);
    color: var(--color-sky-1);
}

/* 下拉项切换按钮（桌面端隐藏，移动端显示） */
.nav-menu .submenu-toggle {
    display: none;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--color-text-2);
}

/* 桌面端为可下拉项显示小箭头 */
.nav-menu > li.menu-item-has-children > a::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.7rem;
    margin-left: 0.4rem;
    color: var(--color-text-3);
    transition: transform var(--transition-fast);
}

.nav-menu > li.menu-item-has-children:hover > a::after {
    transform: rotate(180deg);
}

/* 右侧操作区 */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.header-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--color-cloud);
    color: var(--color-sky-1);
    font-size: 1.1rem;
    transition: all var(--transition-base);
}

.header-icon-btn:hover {
    background: var(--color-sky-1);
    color: var(--color-white);
    transform: scale(1.1);
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
}

.mobile-menu-toggle span {
    display: block;
    width: 26px;
    height: 4px;
    background: var(--color-text-1);
    border-radius: 4px;
    transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}
.mobile-menu-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* 搜索栏 */
.header-search-bar {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
    background: var(--color-cloud);
}

.header-search-bar.active {
    max-height: 120px;
    border-top: 3px solid var(--color-cloud-3);
}

.header-search-form { padding: var(--spacing-md) 0; }

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.search-input-wrapper .search-icon {
    position: absolute;
    left: 1.2rem;
    color: var(--color-text-3);
    font-size: 1.1rem;
}

.search-input {
    flex: 1;
    height: 52px;
    padding: 0 1rem 0 3.2rem;
    border: 3px solid var(--color-cloud-3);
    border-radius: var(--radius-full);
    font-size: 1.05rem;
    outline: none;
    background: var(--color-white);
    transition: border-color var(--transition-fast);
}

.search-input:focus { border-color: var(--color-sky-1); }
.search-submit { flex-shrink: 0; }

/* 搜索建议 */
.search-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 0.5rem;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-height: 400px;
    overflow-y: auto;
    z-index: 100;
    display: none;
}

.search-suggestions.active { display: block; }

.suggestion-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    text-decoration: none;
    color: var(--color-text-1);
    border-bottom: 2px solid var(--color-cloud-2);
    transition: all var(--transition-fast);
}

.suggestion-item:last-child { border-bottom: none; }
.suggestion-item:hover {
    background: var(--color-cloud);
    padding-left: 1.5rem;
}

.suggestion-thumb {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.suggestion-thumb-placeholder {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    background: var(--color-cloud);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-sky-1);
    font-size: 1.3rem;
    flex-shrink: 0;
}

.suggestion-info { flex: 1; min-width: 0; }

.suggestion-title {
    font-weight: 700;
    font-family: var(--font-heading);
    font-size: 1rem;
    color: var(--color-text-1);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.suggestion-nickname {
    font-size: 0.85rem;
    color: var(--color-text-2);
}

/* ============================================
   Hero 区域 — 天空主题
   ============================================ */
.hero-section {
    position: relative;
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    background: linear-gradient(180deg, var(--color-sky-1) 0%, var(--color-sky-2) 50%, var(--color-cloud) 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

/* 云朵 */
.hero-clouds .cloud {
    position: absolute;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    filter: blur(15px);
}

.hero-clouds .cloud-1 { width: 180px; height: 180px; top: 10%; left: 5%; animation: float-soft 10s ease-in-out infinite; }
.hero-clouds .cloud-2 { width: 280px; height: 280px; top: 50%; right: 8%; animation: float-soft 12s ease-in-out infinite reverse; }
.hero-clouds .cloud-3 { width: 140px; height: 140px; bottom: 15%; left: 35%; animation: float-soft 8s ease-in-out infinite; }
.hero-clouds .cloud-4 { width: 220px; height: 220px; top: 20%; right: 35%; animation: float-soft 14s ease-in-out infinite reverse; }
.hero-clouds .cloud-5 { width: 100px; height: 100px; bottom: 30%; left: 60%; animation: float-soft 9s ease-in-out infinite; }

/* 飞机图标 */
.hero-plane-icon {
    position: absolute;
    top: 18%;
    right: 12%;
    font-size: 3.5rem;
    color: var(--color-white);
    opacity: 0.4;
    animation: flyAcross 18s linear infinite;
}

@keyframes flyAcross {
    0%   { transform: translateX(0) translateY(0) rotate(-15deg); }
    25%  { transform: translateX(-60px) translateY(-25px) rotate(-12deg); }
    50%  { transform: translateX(-100px) translateY(5px) rotate(-18deg); }
    75%  { transform: translateX(-50px) translateY(-15px) rotate(-14deg); }
    100% { transform: translateX(0) translateY(0) rotate(-15deg); }
}

/* 星星装饰 */
.hero-stars .star {
    position: absolute;
    color: var(--color-white);
    opacity: 0.6;
    animation: bounce-soft 3s ease-in-out infinite;
}

.hero-stars .star-1 { top: 15%; left: 10%; font-size: 1.5rem; animation-delay: 0s; }
.hero-stars .star-2 { top: 25%; left: 45%; font-size: 1.2rem; animation-delay: 0.5s; }
.hero-stars .star-3 { top: 60%; left: 8%; font-size: 1rem; animation-delay: 1s; }
.hero-stars .star-4 { top: 40%; right: 20%; font-size: 1.3rem; animation-delay: 1.5s; }
.hero-stars .star-5 { top: 70%; right: 15%; font-size: 1.1rem; animation-delay: 2s; }

/* Hero 内容 */
.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.hero-badge i { color: var(--color-lemon); }

.hero-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    color: var(--color-white);
    text-shadow: 0 3px 15px rgba(43, 143, 224, 0.3);
    margin-bottom: var(--spacing-md);
}

.hero-highlight {
    color: var(--color-sun);
    display: inline-block;
    position: relative;
}

.hero-highlight::after {
    content: '';
    position: absolute;
    bottom: 0.1em;
    left: 0;
    right: 0;
    height: 0.3em;
    background: rgba(255, 185, 64, 0.3);
    border-radius: var(--radius-full);
    z-index: -1;
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.4rem);
    color: var(--color-white);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.95;
    font-weight: 600;
}

/* 搜索框 — 简洁大方 */
.hero-search {
    max-width: 620px;
    margin: 0 auto var(--spacing-xl);
}

.hero-search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--color-white);
    border-radius: var(--radius-full);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    padding: 0.4rem 0.4rem 0.4rem 0;
    gap: 0;
    border: 2px solid transparent;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.hero-search-wrapper:focus-within {
    border-color: var(--color-sky-1);
    box-shadow: 0 8px 30px rgba(77, 166, 255, 0.25);
}

.hero-search-icon {
    position: absolute;
    left: 1.6rem;
    color: var(--color-text-3);
    font-size: 1.15rem;
    pointer-events: none;
    transition: color var(--transition-fast);
}

.hero-search-wrapper:focus-within .hero-search-icon {
    color: var(--color-sky-1);
}

.hero-search-input {
    flex: 1;
    height: 56px;
    padding: 0 1rem 0 3.5rem;
    border: none;
    background: transparent;
    font-size: 1.05rem;
    outline: none;
    color: var(--color-text-1);
}

.hero-search-input:focus,
.hero-search-input:focus-visible {
    outline: none;
}

/* 去除浏览器自动填充的灰色背景 — 全局所有搜索框 */
.hero-search-input:-webkit-autofill,
.hero-search-input:-webkit-autofill:hover,
.hero-search-input:-webkit-autofill:focus,
.hero-search-input:-webkit-autofill:active,
.search-input:-webkit-autofill,
.search-input:-webkit-autofill:hover,
.search-input:-webkit-autofill:focus,
.search-input:-webkit-autofill:active,
.search-form-input:-webkit-autofill,
.search-form-input:-webkit-autofill:hover,
.search-form-input:-webkit-autofill:focus,
.search-form-input:-webkit-autofill:active {
    -webkit-text-fill-color: var(--color-text-1) !important;
    caret-color: var(--color-text-1);
    -webkit-box-shadow: 0 0 0 1000px #FFFFFF inset !important;
    transition: background-color 9999s ease-in-out 0s;
}

/* 隐藏浏览器默认的搜索历史下拉列表样式 */
input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-results-button,
input[type="search"]::-webkit-search-results-decoration {
    -webkit-appearance: none;
}

.hero-search-input::placeholder {
    color: var(--color-text-3);
    font-weight: 500;
}

.hero-search-btn {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--color-sky-1);
    color: var(--color-white);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
}

.hero-search-btn:hover {
    background: var(--color-sky-3);
    transform: scale(1.08);
}

.hero-search-btn:active {
    transform: scale(0.95);
}

/* 热门搜索标签 */
.hero-search-tags {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--spacing-md);
}

.hero-search-tags > span {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    font-weight: 600;
}

.hero-search-tags a {
    display: inline-block;
    padding: 0.25rem 0.9rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: var(--color-white);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.hero-search-tags a:hover {
    background: var(--color-white);
    color: var(--color-sky-1);
    transform: translateY(-2px);
}

/* 趣味统计 — 气泡卡片 */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    flex-wrap: wrap;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(43, 143, 224, 0.35);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    min-width: 130px;
    transition: transform var(--transition-base);
}

.hero-stat:hover { transform: translateY(-5px) scale(1.05); }

.hero-stat-1 { border-color: rgba(255, 185, 64, 0.4); }
.hero-stat-2 { border-color: rgba(255, 107, 107, 0.4); }
.hero-stat-3 { border-color: rgba(81, 207, 102, 0.4); }

.hero-stat-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--color-white);
}

.hero-stat-1 .hero-stat-icon { background: var(--color-sun); }
.hero-stat-2 .hero-stat-icon { background: var(--color-coral); }
.hero-stat-3 .hero-stat-icon { background: var(--color-grass); }

.hero-stat-number {
    font-size: 2.2rem;
    font-weight: 900;
    font-family: var(--font-heading);
    line-height: 1;
    color: var(--color-white);
}

.hero-stat-label {
    font-size: 0.95rem;
    color: var(--color-white);
    opacity: 0.9;
    font-weight: 600;
}

/* 向下滚动提示 */
.hero-scroll-hint {
    margin-top: var(--spacing-2xl);
    color: var(--color-white);
    opacity: 0.8;
    font-weight: 600;
    font-size: 0.9rem;
}

.hero-scroll-hint i {
    display: block;
    margin-top: var(--spacing-xs);
    animation: bounce-soft 2s ease-in-out infinite;
}

/* ============================================
   特色轮播
   ============================================ */
.featured-carousel-section {
    background: var(--color-white);
}

.featured-carousel {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.carousel-slide {
    min-width: 100%;
    display: none;
}

.carousel-slide.active { display: block; }

.carousel-card {
    display: flex;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.carousel-image {
    flex: 0 0 50%;
    position: relative;
    min-height: 350px;
    background: var(--color-cloud);
}

.carousel-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    color: var(--color-sky-2);
}

.carousel-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--color-sun);
    color: var(--color-white);
    padding: 0.4rem 1.2rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 800;
    font-family: var(--font-heading);
    box-shadow: var(--shadow-sun);
}

.carousel-info {
    flex: 1;
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.carousel-title {
    font-size: 1.8rem;
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-sm);
}

.carousel-nickname {
    color: var(--color-coral);
    font-weight: 700;
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-sm);
}

.carousel-tagline {
    color: var(--color-text-2);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

.carousel-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.carousel-meta-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--color-text-2);
    font-size: 0.95rem;
    font-weight: 600;
}

.carousel-meta-item i { color: var(--color-sky-1); }
.carousel-btn { align-self: flex-start; }

/* 轮播控制 */
.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--color-white);
    color: var(--color-sky-1);
    font-size: 1.2rem;
    box-shadow: var(--shadow-md);
    z-index: 2;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-prev:hover,
.carousel-next:hover {
    background: var(--color-sky-1);
    color: var(--color-white);
    transform: translateY(-50%) scale(1.15);
}

.carousel-prev { left: 1rem; }
.carousel-next { right: 1rem; }

.carousel-dots {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--spacing-xs);
    z-index: 2;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transition: all var(--transition-base);
}

.carousel-dot.active {
    background: var(--color-sky-1);
    width: 36px;
    border-radius: var(--radius-full);
}

/* ============================================
   分类快捷入口 — 彩色卡片
   ============================================ */
.category-section { background: var(--color-cloud); }

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-lg);
}

.category-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--color-text-1);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    overflow: hidden;
    border: 3px solid transparent;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--cat-color, var(--color-sky-1));
    transform: scaleX(0);
    transition: transform var(--transition-base);
    transform-origin: center;
}

.category-card:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: var(--shadow-lg);
    border-color: var(--cat-color, var(--color-sky-1));
}

.category-card:hover::before { transform: scaleX(1); }

.category-icon {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: var(--cat-color, var(--color-sky-1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    transition: transform var(--transition-base);
    box-shadow: 0 6px 20px color-mix(in srgb, var(--cat-color, var(--color-sky-1)) 30%, transparent);
}

.category-card:hover .category-icon {
    transform: scale(1.15) rotate(-8deg);
}

.category-name {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-1);
}

.category-count {
    color: var(--color-text-2);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.category-go {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.4rem 1.2rem;
    background: var(--cat-color, var(--color-sky-1));
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
    font-family: var(--font-heading);
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--transition-base);
}

.category-card:hover .category-go {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   每日冷知识 — 打卡式海报
   ============================================ */
.fun-fact-section {
    position: relative;
    background: linear-gradient(160deg, var(--color-bg-warm) 0%, #FFF6DF 55%, var(--color-sun-light) 135%);
    overflow: hidden;
}

/* 背景装饰：半透明云朵 */
.fun-fact-section::before,
.fun-fact-section::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.55);
    z-index: 0;
    pointer-events: none;
}
.fun-fact-section::before {
    width: 260px;
    height: 260px;
    top: -90px;
    right: -70px;
    box-shadow: -45px 95px 0 -30px rgba(255, 255, 255, 0.5);
}
.fun-fact-section::after {
    width: 180px;
    height: 180px;
    bottom: -80px;
    left: 12%;
    box-shadow: 70px -40px 0 -20px rgba(255, 255, 255, 0.45);
}

.fun-fact-billboard {
    position: relative;
    z-index: 1;
}

/* 珊瑚红丝带标签（斜贴左上角） */
.fun-fact-ribbon {
    position: absolute;
    top: -22px;
    left: 5%;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-coral);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: 2px;
    padding: 0.65rem 1.6rem;
    border: 3px solid var(--color-white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    transform: rotate(-3deg);
}

.fun-fact-ribbon i {
    animation: wiggle 4s ease-in-out infinite;
}

/* 柠檬黄日期贴纸（斜贴右上角） */
.fun-fact-date {
    position: absolute;
    top: -18px;
    right: 5%;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-sun);
    color: #5C3A00;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 0.95rem;
    padding: 0.55rem 1.2rem;
    border: 3px solid var(--color-white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sun);
    transform: rotate(3deg);
}

/* 白色贴纸卡片：虚线边框 */
.fun-fact-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    background: var(--color-white);
    border: 4px dashed var(--color-sun);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-2xl) var(--spacing-2xl) var(--spacing-2xl) var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: visible;
    transition: transform var(--transition-base);
}

.fun-fact-card:hover {
    transform: translateY(-4px);
}

/* 太阳灯泡徽章 — 叠出卡片左边缘 */
.fun-fact-icon {
    flex-shrink: 0;
    width: 110px;
    height: 110px;
    margin-left: -4.5rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-sun-light), var(--color-sun));
    border: 5px solid var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #5C3A00;
    box-shadow: var(--shadow-sun);
    animation: wiggle 4s ease-in-out infinite;
}

.fun-fact-content { flex: 1; z-index: 1; }

.fun-fact-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-1);
    font-family: var(--font-heading);
    font-weight: 800;
}

.fun-fact-text {
    font-size: 1.15rem;
    line-height: 1.9;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-2);
    text-indent: 2em;
}

.fun-fact-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-white);
    text-decoration: none;
    padding: 0.65rem 1.4rem;
    background: linear-gradient(135deg, var(--color-sky-2), var(--color-sky-1));
    border-radius: var(--radius-full);
    font-weight: 800;
    font-family: var(--font-heading);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.fun-fact-link:hover {
    transform: translateX(5px) scale(1.03);
    box-shadow: var(--shadow-md);
}

/* 纸飞机装饰 */
.fun-fact-plane {
    position: absolute;
    right: 1.6rem;
    bottom: 1.3rem;
    font-size: 2.4rem;
    color: var(--color-sun);
    opacity: 0.85;
    transform: rotate(-12deg);
    animation: float-soft 6s ease-in-out infinite;
}

/* ============================================
   游乐园入口
   ============================================ */
.quick-access-section { background: var(--color-cloud); }

.quick-access-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.quick-access-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--color-white);
    border-radius: var(--radius-xl);
    text-decoration: none;
    color: var(--color-text-1);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    border: 3px solid transparent;
}

.quick-access-card:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: var(--shadow-xl);
}

.qa-quiz:hover { border-color: var(--color-sky-1); }
.qa-puzzle:hover { border-color: var(--color-sun); }
.qa-radar:hover { border-color: var(--color-grape); }

.qa-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
    transition: transform var(--transition-base);
}

.quick-access-card:hover .qa-icon {
    transform: scale(1.15) rotate(10deg);
}

.qa-quiz .qa-icon { background: linear-gradient(135deg, var(--color-sky-1), var(--color-sky-3)); }
.qa-puzzle .qa-icon { background: linear-gradient(135deg, var(--color-sun), var(--color-sun-deep)); }
.qa-radar .qa-icon { background: linear-gradient(135deg, var(--color-grape), #7048E8); }

.quick-access-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.quick-access-card p {
    color: var(--color-text-2);
    margin-bottom: var(--spacing-lg);
    font-size: 1.05rem;
}

.qa-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.6rem 1.8rem;
    background: var(--color-cloud);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--color-sky-1);
    transition: all var(--transition-fast);
    font-size: 1rem;
}

.qa-quiz:hover .qa-btn { background: var(--color-sky-1); color: var(--color-white); }
.qa-puzzle:hover .qa-btn { background: var(--color-sun); color: var(--color-white); }
.qa-radar:hover .qa-btn { background: var(--color-grape); color: var(--color-white); }

.qa-timeline:hover { border-color: var(--color-grass); }
.qa-timeline .qa-icon { background: linear-gradient(135deg, var(--color-grass), #37B24D); }
.qa-timeline:hover .qa-btn { background: var(--color-grass); color: var(--color-white); }

.qa-compare:hover { border-color: var(--color-coral); }
.qa-compare .qa-icon { background: linear-gradient(135deg, var(--color-coral), #E85555); }
.qa-compare:hover .qa-btn { background: var(--color-coral); color: var(--color-white); }

.qa-dashboard:hover { border-color: var(--color-grape); }
.qa-dashboard .qa-icon { background: linear-gradient(135deg, var(--color-grape), #7048E8); }
.qa-dashboard:hover .qa-btn { background: var(--color-grape); color: var(--color-white); }

/* ============================================
   底部 — 波浪 + 天空蓝
   ============================================ */
.site-footer {
    position: relative;
    background: linear-gradient(180deg, var(--color-sky-3) 0%, var(--color-sky-deep) 100%);
    color: var(--color-white);
    padding: 0 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
    overflow: hidden;
}

/* 顶部波浪 */
.footer-wave {
    position: relative;
    color: var(--color-cloud);
    line-height: 0;
    margin-bottom: var(--spacing-2xl);
}

.footer-wave svg {
    width: 100%;
    height: 60px;
    display: block;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    position: relative;
    z-index: 1;
    padding: 0 var(--spacing-lg);
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 800;
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-md);
}

.footer-logo .custom-logo-link,
.footer-logo .logo-link {
    display: inline-flex;
    align-items: center;
}

.footer-logo .custom-logo,
.footer-logo .logo-img {
    max-width: 200px;
    height: auto;
    display: block;
}

.footer-logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--color-sun);
    color: var(--color-white);
    font-size: 1.3rem;
}

.footer-about p {
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
    font-weight: 500;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.1rem;
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--color-sun);
    transform: translateY(-4px) scale(1.1);
}

.footer-col h4 {
    color: var(--color-white);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-col h4 i { color: var(--color-sun); }

.footer-menu { list-style: none; }

.footer-menu li { margin-bottom: var(--spacing-sm); }

.footer-menu a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.footer-menu a:hover {
    color: var(--color-sun);
    padding-left: 0.5rem;
}

.footer-count { font-size: 0.8rem; opacity: 0.6; }

.footer-contact { list-style: none; }

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.footer-contact i {
    color: var(--color-sun);
    width: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 2px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    position: relative;
    z-index: 1;
    max-width: var(--container-max);
    margin: 0 auto;
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

.footer-credits a { color: rgba(255, 255, 255, 0.8); }

/* ============================================
   回到顶部
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-sun);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    box-shadow: var(--shadow-sun);
    z-index: 900;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.5);
    transition: all var(--transition-base);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.back-to-top:hover {
    background: var(--color-sun-deep);
    transform: translateY(-5px) scale(1.1);
}

/* 桌面端：回顶按钮上移给留言按钮腾位置 */
@media (min-width: 769px) {
    .back-to-top { bottom: 2rem; }
}

/* ============================================
   留言浮动按钮 + 弹框
   ============================================ */
.message-fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-sky-1), var(--color-sky-3));
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: var(--shadow-md);
    z-index: 900;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
}

.message-fab:hover {
    transform: scale(1.12) rotate(-5deg);
    box-shadow: var(--shadow-lg);
}

.message-fab i {
    animation: bounce-soft 3s ease-in-out infinite;
}

/* 移动端：两个按钮叠排 */
@media (max-width: 768px) {
    .message-fab { bottom: 1rem; right: 1rem; }
    .back-to-top { bottom: 5.8rem; right: 1rem; }
}

/* —— 留言弹框 —— */
.message-modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.message-modal.active {
    pointer-events: auto;
    opacity: 1;
}

.message-modal-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(30, 58, 95, 0.5);
    backdrop-filter: blur(4px);
}

.message-modal-box {
    position: relative;
    width: 92%;
    max-width: 480px;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-xl);
    transform: scale(0.8) translateY(20px);
    transition: transform var(--transition-base);
    z-index: 1;
    max-height: 90vh;
    overflow-y: auto;
}

.message-modal.active .message-modal-box {
    transform: scale(1) translateY(0);
}

.message-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-cloud);
    color: var(--color-text-2);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

.message-modal-close:hover {
    background: var(--color-coral);
    color: var(--color-white);
    transform: rotate(90deg);
}

.message-modal-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-right: 2.5rem;
}

.message-modal-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-sky-1), var(--color-sky-3));
    color: var(--color-white);
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    box-shadow: var(--shadow-md);
    animation: bounce-soft 3s ease-in-out infinite;
}

.message-modal-header h3 {
    color: var(--color-sky-deep);
    font-size: 1.4rem;
    margin-bottom: var(--spacing-xs);
}

.message-modal-header p {
    color: var(--color-text-2);
    font-size: 0.95rem;
}

/* —— 表单 —— */
.message-modal-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.message-field {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.message-field-label {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-text-1);
    font-size: 0.9rem;
}

.message-field-label em {
    color: var(--color-text-3);
    font-style: normal;
    font-weight: 400;
    font-size: 0.8rem;
}

.message-field input,
.message-field textarea {
    padding: 0.75rem 1rem;
    border: 2px solid var(--color-cloud-3);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font-body);
    color: var(--color-text-1);
    outline: none;
    transition: border-color var(--transition-fast);
    resize: vertical;
}

.message-field input:focus,
.message-field textarea:focus {
    border-color: var(--color-sky-1);
    box-shadow: 0 0 0 3px rgba(77, 166, 255, 0.12);
}

.message-modal-submit {
    width: 100%;
    margin-top: var(--spacing-sm);
}

/* —— 反馈消息 —— */
.message-modal-feedback {
    text-align: center;
    font-weight: 700;
    font-size: 0.95rem;
    min-height: 1.2em;
}

.message-modal-feedback.success {
    color: var(--color-success);
}

.message-modal-feedback.error {
    color: var(--color-danger);
}

/* 桌面端：留言按钮在回顶按钮上方，留1.2rem间距 */
@media (min-width: 769px) {
    .message-fab {
        bottom: 6.7rem;
    }
    .back-to-top {
        bottom: 2rem;
    }
}

/* ============================================
   无结果提示
   ============================================ */
.no-results {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
}

.no-results-icon {
    font-size: 5rem;
    color: var(--color-sky-2);
    margin-bottom: var(--spacing-lg);
}

.no-results h3 {
    font-size: 1.5rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-sm);
}

.no-results p {
    color: var(--color-text-3);
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   分页
   ============================================ */
.pagination {
    margin-top: var(--spacing-2xl);
    text-align: center;
}

.pagination ul {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    list-style: none;
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    height: 48px;
    padding: 0 0.85rem;
    border-radius: var(--radius-sm);
    background: var(--color-white);
    color: var(--color-text-1);
    text-decoration: none;
    font-weight: 700;
    font-family: var(--font-heading);
    border: 3px solid transparent;
    transition: all var(--transition-fast);
}

.pagination a:hover {
    border-color: var(--color-sky-1);
    color: var(--color-sky-1);
    transform: translateY(-2px);
}

.pagination .current {
    background: var(--color-sky-1);
    color: var(--color-white);
}

/* ============================================
   关于页面
   ============================================ */
.about-page {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-2xl) 0;
}

.about-hero {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.about-hero-icon {
    font-size: 4rem;
    color: var(--color-sky-1);
    margin-bottom: var(--spacing-md);
}

.about-title {
    font-size: 2.5rem;
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-sm);
}

.about-subtitle {
    font-size: 1.2rem;
    color: var(--color-text-2);
}

.about-section {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.about-section h2 {
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.about-section h2 i { color: var(--color-sun); }

.about-list { list-style: none; }

.about-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    color: var(--color-text-2);
}

.about-list i { color: var(--color-grass); font-size: 1.1rem; }

.about-audience {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.audience-card {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-cloud);
    border-radius: var(--radius-md);
    transition: transform var(--transition-base);
}

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

.audience-card i {
    font-size: 2.5rem;
    color: var(--color-sky-1);
    margin-bottom: var(--spacing-sm);
}

.audience-card h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.audience-card p {
    font-size: 0.9rem;
    color: var(--color-text-2);
}

.about-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-2);
}

.contact-item i { color: var(--color-sky-1); width: 20px; }

/* ============================================
   404 页面
   ============================================ */
.error-404-page {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
}

.error-404-icon {
    font-size: 6rem;
    color: var(--color-sky-1);
    margin-bottom: var(--spacing-md);
    animation: bounce-soft 2s ease-in-out infinite;
}

.error-404-code {
    font-size: 6rem;
    font-weight: 900;
    font-family: var(--font-heading);
    color: var(--color-sky-1);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.error-404-title {
    font-size: 1.8rem;
    color: var(--color-text-1);
    margin-bottom: var(--spacing-sm);
}

.error-404-description {
    color: var(--color-text-2);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xl);
}

.error-404-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-2xl);
}

.error-404-search {
    max-width: 600px;
    margin: 0 auto;
}

.error-404-search h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-2);
}

/* ============================================
   搜索页
   ============================================ */
.search-page { padding: var(--spacing-2xl) 0; }

.search-keyword { color: var(--color-sun); }

.search-info {
    color: var(--color-text-2);
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
}

.search-page-form { margin-bottom: var(--spacing-xl); }

/* 搜索表单 */
.search-form-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--color-white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-md);
    padding: 0.4rem;
    gap: var(--spacing-sm);
    border: 3px solid var(--color-cloud-3);
}

.search-form-icon {
    position: absolute;
    left: 1.2rem;
    color: var(--color-text-3);
}

.search-form-input {
    flex: 1;
    height: 48px;
    padding: 0 1rem 0 3rem;
    border: none;
    background: transparent;
    font-size: 1.05rem;
    font-weight: 600;
    outline: none;
    color: var(--color-text-1);
}

.search-form-submit { flex-shrink: 0; }

/* ============================================
   互动体验区
   ============================================ */
.interactive-page { padding: var(--spacing-2xl) 0; }

.interactive-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.interactive-header .page-title {
    font-size: 2.5rem;
    color: var(--color-sky-deep);
}

.interactive-header .page-title i { color: var(--color-sun); }

.interactive-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.interactive-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 2rem;
    border-radius: var(--radius-full);
    background: var(--color-white);
    color: var(--color-text-2);
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    border: 3px solid var(--color-cloud-3);
    transition: all var(--transition-base);
    min-height: 52px;
}

.interactive-tab:hover {
    border-color: var(--color-sky-1);
    color: var(--color-sky-1);
    transform: translateY(-2px);
}

.interactive-tab.active {
    background: var(--color-sky-1);
    color: var(--color-white);
    border-color: var(--color-sky-1);
}

.interactive-section { display: none; }
.interactive-section.active { display: block; }

/* 知识问答 / 拼图容器 */
.quiz-container,
.puzzle-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.quiz-start,
.puzzle-start {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.quiz-start-icon,
.puzzle-start-icon {
    font-size: 4rem;
    color: var(--color-sky-1);
    margin-bottom: var(--spacing-md);
    animation: bounce-soft 3s ease-in-out infinite;
}

.quiz-start h2,
.puzzle-start h2 {
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-sm);
}

.quiz-start p,
.puzzle-start p {
    color: var(--color-text-2);
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.quiz-settings,
.puzzle-settings { margin-bottom: var(--spacing-lg); }

.quiz-settings label,
.puzzle-settings label {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.05rem;
    color: var(--color-text-2);
    font-weight: 600;
}

.quiz-settings select,
.puzzle-settings select {
    padding: 0.5rem 1rem;
    border: 3px solid var(--color-cloud-3);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    outline: none;
    cursor: pointer;
    background: var(--color-white);
    transition: border-color var(--transition-fast);
}

.quiz-settings select:focus,
.puzzle-settings select:focus { border-color: var(--color-sky-1); }

/* 答题进度 */
.quiz-progress {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.quiz-progress-bar {
    flex: 1;
    height: 12px;
    background: var(--color-cloud-2);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.quiz-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-sky-1), var(--color-grass));
    border-radius: var(--radius-full);
    width: 0%;
    transition: width var(--transition-base);
}

.quiz-progress-text {
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--color-text-2);
    white-space: nowrap;
}

.quiz-score {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-sun);
    font-weight: 800;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
}

/* 题目 */
.quiz-question-area { margin-bottom: var(--spacing-xl); }

.quiz-question {
    font-size: 1.3rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--color-text-1);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.quiz-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 1rem 1.5rem;
    background: var(--color-cloud);
    border: 3px solid var(--color-cloud-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: left;
    width: 100%;
    font-size: 1rem;
    color: var(--color-text-1);
    font-weight: 600;
    min-height: 56px;
}

.quiz-option:hover:not(.disabled) {
    border-color: var(--color-sky-1);
    background: rgba(77, 166, 255, 0.08);
    transform: translateX(5px);
}

.quiz-option.selected {
    border-color: var(--color-sky-1);
    background: rgba(77, 166, 255, 0.12);
}

.quiz-option.correct {
    border-color: var(--color-grass);
    background: rgba(81, 207, 102, 0.12);
    color: var(--color-grass);
}

.quiz-option.wrong {
    border-color: var(--color-coral);
    background: rgba(255, 107, 107, 0.12);
    color: var(--color-coral);
}

.quiz-option-letter {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-white);
    font-weight: 800;
    font-family: var(--font-heading);
    flex-shrink: 0;
    border: 3px solid currentColor;
    font-size: 1rem;
}

.quiz-option.correct .quiz-option-letter {
    background: var(--color-grass);
    color: var(--color-white);
}

.quiz-option.wrong .quiz-option-letter {
    background: var(--color-coral);
    color: var(--color-white);
}

.quiz-explain {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(77, 166, 255, 0.06);
    border-left: 5px solid var(--color-sky-1);
    border-radius: var(--radius-sm);
    display: none;
}

.quiz-explain.active {
    display: block;
    animation: fadeInUp 0.3s ease;
}

.quiz-explain-label {
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--color-sky-1);
    margin-bottom: var(--spacing-xs);
}

.quiz-explain-text {
    color: var(--color-text-2);
    line-height: 1.6;
}

.quiz-controls { text-align: right; }

/* 结果界面 */
.quiz-result {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.quiz-result-icon {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
    animation: bounce-soft 2s ease-in-out infinite;
}

.quiz-result h2 {
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-md);
}

.quiz-result-score {
    font-size: 3rem;
    font-weight: 900;
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-md);
}

.result-score-num { color: var(--color-sky-1); }
.result-score-total { color: var(--color-text-3); }

.quiz-result-message {
    font-size: 1.2rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-xl);
}

/* 拼图 */
.puzzle-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.puzzle-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-2);
    font-weight: 700;
    font-family: var(--font-heading);
}

.puzzle-stat i { color: var(--color-sky-1); }

.puzzle-reference {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.puzzle-reference h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-2);
}

.puzzle-reference img {
    max-width: 200px;
    border-radius: var(--radius-md);
    margin: 0 auto;
    box-shadow: var(--shadow-md);
}

.puzzle-board {
    display: grid;
    gap: 3px;
    background: var(--color-cloud-3);
    padding: 3px;
    border-radius: var(--radius-md);
    margin: 0 auto;
    max-width: 500px;
    aspect-ratio: 1;
}

.puzzle-piece {
    background-size: cover;
    background-position: center;
    cursor: pointer;
    border-radius: 3px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    position: relative;
}

.puzzle-piece:hover {
    transform: scale(0.95);
    z-index: 2;
    box-shadow: var(--shadow-lg);
}

.puzzle-piece.selected {
    box-shadow: 0 0 0 4px var(--color-sun);
    z-index: 3;
}

.puzzle-piece.correct {
    box-shadow: 0 0 0 3px var(--color-grass);
}

.puzzle-complete {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.puzzle-complete-icon {
    font-size: 5rem;
    color: var(--color-grass);
    margin-bottom: var(--spacing-md);
    animation: bounce-soft 2s ease-in-out infinite;
}

.puzzle-complete h2 {
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-sm);
}

.puzzle-complete p {
    font-size: 1.2rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-xl);
}

/* ============================================
   天空雷达
   ============================================ */
.radar-page { padding: var(--spacing-2xl) 0; }

.radar-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.radar-header .page-title {
    font-size: 2.5rem;
    color: var(--color-sky-deep);
}

.radar-header .page-title i { color: var(--color-sun); }

.radar-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.radar-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.radar-stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-2);
    font-size: 0.95rem;
    font-weight: 600;
}

.radar-stat i { color: var(--color-sky-1); }
.radar-stat strong { color: var(--color-text-1); }

.status-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 0.3rem;
}

.status-dot.loading { background: var(--color-sun); animation: bounce-soft 1s infinite; }
.status-dot.success { background: var(--color-grass); }
.status-dot.error { background: var(--color-coral); }

.radar-map-container {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-bottom: var(--spacing-lg);
}

#radar-map {
    width: 100%;
    height: 600px;
    background: var(--color-cloud);
}

.radar-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    z-index: 500;
}

.radar-loading.d-none { display: none; }

.radar-loading p {
    margin-top: var(--spacing-md);
    color: var(--color-text-2);
    font-weight: 600;
}

.radar-info-box {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.radar-info-box h3 {
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-md);
}

.radar-info-box ul {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.radar-info-box li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    color: var(--color-text-2);
}

.radar-info-box li i {
    color: var(--color-sky-1);
    width: 20px;
}

.radar-disclaimer {
    padding: var(--spacing-md);
    background: rgba(255, 185, 64, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-text-2);
    font-size: 0.9rem;
}

.radar-disclaimer i { color: var(--color-sun); }

/* 飞机弹窗 */
.aircraft-popup {
    text-align: center;
    padding: var(--spacing-sm);
}

.aircraft-popup-title {
    font-size: 1.2rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-xs);
}

.aircraft-popup-info {
    color: var(--color-text-2);
    font-size: 0.9rem;
    line-height: 1.6;
}

.aircraft-popup-info strong { color: var(--color-text-1); }

/* ============================================
   飞行游戏 — 星星收集大冒险
   ============================================ */
.flygame-container {
    max-width: 840px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.flygame-start,
.flygame-over {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.flygame-start-icon,
.flygame-over-icon {
    font-size: 4rem;
    color: var(--color-sky-1);
    margin-bottom: var(--spacing-md);
    animation: bounce-soft 3s ease-in-out infinite;
}

.flygame-start h2,
.flygame-over h2 {
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-sm);
}

.flygame-start p {
    color: var(--color-text-2);
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.flygame-tips {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    text-align: left;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.flygame-tips span {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.6rem 1rem;
    background: var(--color-cloud);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--color-text-2);
    font-weight: 600;
}

.flygame-tips i { color: var(--color-sky-1); }
.flygame-tips .fa-star { color: var(--color-lemon); }
.flygame-tips .fa-cloud { color: var(--color-text-3); }
.flygame-tips .fa-medal { color: var(--color-sun); }

/* 勋章预览 */
.flygame-badges {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.flygame-badge-tip {
    padding: 0.4rem 1rem;
    background: linear-gradient(135deg, var(--color-cloud), var(--color-cloud-2));
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-2);
    border: 2px solid var(--color-cloud-3);
}

/* 游戏界面 */
.flygame-play { text-align: center; }

.flygame-hud {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.flygame-hud-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--color-text-1);
}

.flygame-hud-item .fa-star { color: var(--color-lemon); }
.flygame-hud-item .fa-trophy { color: var(--color-sun); }
.flygame-hud-item .fa-medal { color: var(--color-coral); }

.flygame-hud-stars { color: var(--color-sun); }

.flygame-canvas-wrap {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

#flygame-canvas {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    touch-action: none;
    background: #74C2FF;
    display: block;
}

/* 移动端虚拟方向键 */
.flygame-dpad {
    position: absolute;
    bottom: 12px;
    right: 12px;
    width: 120px;
    height: 120px;
    display: none;
    z-index: 10;
}

.dpad-btn {
    position: absolute;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(5px);
    color: var(--color-sky-1);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    border: 2px solid rgba(77, 166, 255, 0.3);
    cursor: pointer;
    transition: all var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    -webkit-user-select: none;
}

.dpad-btn:active {
    background: var(--color-sky-1);
    color: var(--color-white);
    transform: scale(0.9);
}

.dpad-up    { top: 0; left: 40px; }
.dpad-down  { bottom: 0; left: 40px; }
.dpad-left  { top: 40px; left: 0; }
.dpad-right { top: 40px; right: 0; }

@media (max-width: 768px) {
    .flygame-dpad { display: block; }
}

.flygame-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.flygame-hint {
    color: var(--color-text-3);
    font-size: 0.9rem;
    font-weight: 600;
}

/* 结束界面 */
.flygame-over-score {
    font-size: 1.4rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
}

.flygame-over-score strong {
    color: var(--color-sky-1);
    font-size: 2rem;
    font-family: var(--font-heading);
}

.flygame-over-stars {
    font-size: 1.1rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.flygame-over-stars strong {
    color: var(--color-sun);
    font-size: 1.4rem;
}

.flygame-over-msg {
    font-size: 1.15rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-md);
}

.flygame-over-badge {
    margin-bottom: var(--spacing-xl);
}

.flygame-badge-get {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: linear-gradient(135deg, var(--color-sun), var(--color-sun-deep));
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    box-shadow: var(--shadow-sun);
    animation: bounce-soft 2s ease-in-out infinite;
}

.flygame-badge-next {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    background: var(--color-cloud);
    color: var(--color-text-2);
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.95rem;
}

.flygame-over-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* 勋章 Toast 弹窗 */
.flygame-toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.5);
    background: linear-gradient(135deg, var(--color-sun), var(--color-sun-deep));
    color: var(--color-white);
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 800;
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    pointer-events: none;
    white-space: nowrap;
}

.flygame-toast.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* ============================================
   空中交通管制员游戏
   ============================================ */
.atc-container {
    max-width: 840px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.atc-start, .atc-complete {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.atc-start-icon, .atc-complete-icon {
    font-size: 4rem;
    color: var(--color-sky-1);
    margin-bottom: var(--spacing-md);
    animation: bounce-soft 3s ease-in-out infinite;
}

.atc-start h2, .atc-complete h2 {
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-sm);
}

.atc-start p {
    color: var(--color-text-2);
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.atc-tips {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    text-align: left;
    max-width: 380px;
    margin-left: auto;
    margin-right: auto;
}

.atc-tips span {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.6rem 1rem;
    background: var(--color-cloud);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--color-text-2);
    font-weight: 600;
}

.atc-tips i { color: var(--color-sky-1); }
.atc-tips .fa-exclamation-triangle { color: var(--color-sun); }

/* 关卡选择 */
.atc-level-select {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.atc-level-btn {
    padding: 0.6rem 1.4rem;
    border-radius: var(--radius-full);
    background: var(--color-white);
    color: var(--color-text-2);
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    border: 3px solid var(--color-cloud-3);
    transition: all var(--transition-base);
    cursor: pointer;
}

.atc-level-btn:hover {
    border-color: var(--color-sky-1);
    color: var(--color-sky-1);
    transform: translateY(-2px);
}

.atc-level-btn.active {
    background: var(--color-sky-1);
    color: var(--color-white);
    border-color: var(--color-sky-1);
}

/* 游戏界面 */
.atc-play { text-align: center; }

.atc-hud {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.atc-hud-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--color-text-1);
}

.atc-hud-item .fa-plane { color: var(--color-sky-1); }
.atc-hud-item .fa-star { color: var(--color-lemon); }
.atc-hud-item .fa-trophy { color: var(--color-sun); }

#atc-canvas {
    width: 100%;
    max-width: 800px;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    touch-action: none;
    background: #B8E0C8;
    display: block;
    margin: 0 auto;
    cursor: crosshair;
}

.atc-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.atc-hint {
    color: var(--color-text-2);
    font-size: 1rem;
    font-weight: 600;
}

/* 通关界面 */
.atc-complete-score {
    font-size: 1.3rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.atc-complete-score strong {
    color: var(--color-sky-1);
    font-size: 2rem;
    font-family: var(--font-heading);
}

.atc-complete-msg {
    font-size: 1.15rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-md);
}

.atc-complete-badge { margin-bottom: var(--spacing-xl); }

.atc-badge-get {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: linear-gradient(135deg, var(--color-sun), var(--color-sun-deep));
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    box-shadow: var(--shadow-sun);
    animation: bounce-soft 2s ease-in-out infinite;
}

.atc-complete-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .atc-level-btn { font-size: 0.85rem; padding: 0.5rem 1rem; }
    .atc-hud-item { font-size: 1rem; }
    .atc-hint { font-size: 0.9rem; }
}

/* ============================================
   小小机长模拟飞行
   ============================================ */
.simflight-container {
    max-width: 840px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.simflight-start, .simflight-complete {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.simflight-start-icon, .simflight-complete-icon {
    font-size: 4rem;
    color: var(--color-sky-1);
    margin-bottom: var(--spacing-md);
    animation: bounce-soft 3s ease-in-out infinite;
}

.simflight-start h2, .simflight-complete h2 {
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-sm);
}

.simflight-start p {
    color: var(--color-text-2);
    margin-bottom: var(--spacing-lg);
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.simflight-tips {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    text-align: left;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
}

.simflight-tips span {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.6rem 1rem;
    background: var(--color-cloud);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--color-text-2);
    font-weight: 600;
}

.simflight-tips i { color: var(--color-sky-1); }
.simflight-tips .fa-medal { color: var(--color-sun); }
.simflight-tips .fa-mobile-alt { color: var(--color-coral); }

/* 任务选择 */
.simflight-task-select {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.simflight-task-btn {
    padding: 0.6rem 1.4rem;
    border-radius: var(--radius-full);
    background: var(--color-white);
    color: var(--color-text-2);
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    border: 3px solid var(--color-cloud-3);
    transition: all var(--transition-base);
    cursor: pointer;
}

.simflight-task-btn:hover {
    border-color: var(--color-sky-1);
    color: var(--color-sky-1);
    transform: translateY(-2px);
}

.simflight-task-btn.active {
    background: var(--color-sky-1);
    color: var(--color-white);
    border-color: var(--color-sky-1);
}

.simflight-badges {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    min-height: 38px;
}

.simflight-badge-tip {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--color-cloud);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-text-2);
}

/* 游戏界面 */
.simflight-play { text-align: center; }

.simflight-hud {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.simflight-hud-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--color-text-1);
}

.simflight-hud-item .fa-tasks { color: var(--color-sky-1); }
.simflight-hud-item .fa-star { color: var(--color-lemon); }
.simflight-hud-item .fa-trophy { color: var(--color-sun); }
.simflight-hud-item .fa-gauge-high { color: var(--color-grass); }
.simflight-hud-item .fa-mountain { color: var(--color-coral); }

.simflight-canvas-wrap {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

#simflight-canvas {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    touch-action: none;
    background: #74C2FF;
    display: block;
}

/* 移动端虚拟方向键 */
.simflight-dpad {
    position: absolute;
    bottom: 12px;
    right: 12px;
    width: 120px;
    height: 120px;
    display: none;
    z-index: 10;
}

@media (max-width: 768px) {
    .simflight-dpad { display: block; }
}

.simflight-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.simflight-hint {
    color: var(--color-text-3);
    font-size: 0.95rem;
    font-weight: 600;
}

/* 完成界面 */
.simflight-complete-score {
    font-size: 1.3rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.simflight-complete-score strong {
    color: var(--color-sky-1);
    font-size: 2rem;
    font-family: var(--font-heading);
}

.simflight-complete-msg {
    font-size: 1.15rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-md);
}

.simflight-complete-badge { margin-bottom: var(--spacing-xl); }

.simflight-badge-get {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: linear-gradient(135deg, var(--color-sun), var(--color-sun-deep));
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    box-shadow: var(--shadow-sun);
    animation: bounce-soft 2s ease-in-out infinite;
}

.simflight-badge-next {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    background: var(--color-cloud);
    color: var(--color-text-2);
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-weight: 700;
}

.simflight-complete-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .simflight-task-btn { font-size: 0.85rem; padding: 0.5rem 1rem; }
    .simflight-hud-item { font-size: 0.95rem; }
    .simflight-hint { font-size: 0.85rem; }
}

/* ============================================
   飞机对比页面
   ============================================ */
.compare-page { padding: var(--spacing-xl) 0; }

.compare-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.compare-header-icon {
    font-size: 3rem;
    color: var(--color-sky-1);
    margin-bottom: var(--spacing-md);
}

.compare-header .page-title { font-size: 2.2rem; color: var(--color-sky-deep); }
.compare-header .page-subtitle { color: var(--color-text-2); }

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

.compare-selector-label {
    text-align: center;
    color: var(--color-text-2);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.compare-selector-label i { color: var(--color-sky-1); }

.compare-search-wrap {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.compare-search-input {
    width: 100%;
    height: 52px;
    padding: 0 1.2rem;
    border: 3px solid var(--color-cloud-3);
    border-radius: var(--radius-full);
    font-size: 1.05rem;
    outline: none;
    background: var(--color-white);
    transition: border-color var(--transition-fast);
}

.compare-search-input:focus { border-color: var(--color-sky-1); }

.compare-search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 0.5rem;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-height: 300px;
    overflow-y: auto;
    z-index: 50;
    display: none;
}

.compare-search-results.active { display: block; }

.compare-result-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    border-bottom: 2px solid var(--color-cloud-2);
    transition: background var(--transition-fast);
}

.compare-result-item:hover { background: var(--color-cloud); }
.compare-result-item.added { opacity: 0.5; pointer-events: none; }
.compare-result-item:last-child { border-bottom: none; }

.compare-result-item img,
.compare-result-thumb-ph {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    flex-shrink: 0;
}

.compare-result-thumb-ph {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-cloud);
    color: var(--color-sky-1);
}

.compare-result-item span { flex: 1; font-weight: 700; color: var(--color-text-1); }
.compare-result-item small { color: var(--color-text-3); }
.compare-result-item .fa-plus, .compare-result-item .fa-check { color: var(--color-sky-1); }

.compare-no-result {
    padding: var(--spacing-md);
    text-align: center;
    color: var(--color-text-3);
}

/* 槽位 */
.compare-slots {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.compare-slot {
    width: 200px;
    min-height: 120px;
    border: 3px dashed var(--color-cloud-3);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-cloud);
    position: relative;
    transition: border-color var(--transition-base);
}

.compare-slot-empty {
    text-align: center;
    color: var(--color-text-3);
    font-weight: 600;
}

.compare-slot-empty i { display: block; font-size: 1.5rem; margin-bottom: 0.3rem; }

.compare-slot-filled {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    padding: var(--spacing-sm);
}

.compare-slot-filled img,
.compare-slot-thumb-ph {
    width: 80px;
    height: 60px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.compare-slot-thumb-ph {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-cloud-2);
    color: var(--color-sky-1);
    font-size: 1.5rem;
}

.compare-slot-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-1);
    text-align: center;
}

.compare-slot-remove {
    position: absolute;
    top: 0.4rem;
    right: 0.4rem;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-coral);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
}

.compare-start-btn { display: block; margin: 0 auto; }
.compare-start-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.compare-reset-btn { margin-bottom: var(--spacing-lg); }

/* 对比表格 */
.compare-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.compare-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    min-width: 600px;
}

.compare-table th,
.compare-table td {
    padding: var(--spacing-md);
    text-align: center;
    border-bottom: 2px solid var(--color-cloud-2);
}

.compare-table-label {
    width: 120px;
    text-align: left !important;
    background: var(--color-cloud);
    font-weight: 700;
    color: var(--color-text-2);
    font-family: var(--font-heading);
}

.compare-table-col { background: var(--color-cloud); }

.compare-table-name {
    display: block;
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--color-sky-deep);
    text-decoration: none;
    margin-bottom: 0.3rem;
}

.compare-table-name:hover { color: var(--color-sky-1); }

.compare-thumb-img {
    width: 100%;
    max-width: 200px;
    border-radius: var(--radius-sm);
    margin: 0 auto;
}

.compare-table td { color: var(--color-text-1); font-weight: 600; }

.compare-highlight {
    background: rgba(255, 185, 64, 0.08);
    color: var(--color-sun-deep) !important;
    font-weight: 800 !important;
}

.compare-empty { color: var(--color-text-3); }

@media (max-width: 768px) {
    .compare-slot { width: 100%; }
    .compare-table-label { width: 80px; }
}

/* ============================================
   飞机识别挑战游戏
   ============================================ */
.identify-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.identify-start, .identify-result {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.identify-start-icon, .identify-result-icon {
    font-size: 4rem;
    color: var(--color-sky-1);
    margin-bottom: var(--spacing-md);
    animation: bounce-soft 3s ease-in-out infinite;
}

.identify-start h2, .identify-result h2 {
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-sm);
}

.identify-start p {
    color: var(--color-text-2);
    margin-bottom: var(--spacing-lg);
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
}

.identify-tips {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    text-align: left;
    max-width: 360px;
    margin-left: auto;
    margin-right: auto;
}

.identify-tips span {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.6rem 1rem;
    background: var(--color-cloud);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--color-text-2);
    font-weight: 600;
}

.identify-tips i { color: var(--color-sky-1); }
.identify-tips .fa-star { color: var(--color-lemon); }

.identify-play { text-align: center; }

.identify-hud {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.identify-hud-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-text-1);
}

.identify-hud-item .fa-star { color: var(--color-lemon); }
.identify-hud-item .fa-flag-checkered { color: var(--color-sky-1); }
.identify-hud-item .fa-trophy { color: var(--color-sun); }

.identify-image-wrap {
    width: 100%;
    height: 220px;
    border-radius: var(--radius-lg);
    background: var(--color-cloud);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

.identify-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.identify-image-ph {
    font-size: 4rem;
    color: var(--color-sky-2);
}

.identify-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.identify-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 1rem;
    background: var(--color-cloud);
    border: 3px solid var(--color-cloud-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-1);
    transition: all var(--transition-base);
    min-height: 56px;
}

.identify-option:hover:not(.disabled) {
    border-color: var(--color-sky-1);
    transform: translateX(4px);
}

.identify-option.correct {
    border-color: var(--color-grass);
    background: rgba(81,207,102,0.12);
    color: var(--color-grass);
}

.identify-option.wrong {
    border-color: var(--color-coral);
    background: rgba(255,107,107,0.12);
    color: var(--color-coral);
}

.identify-option-letter {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-white);
    font-weight: 800;
    flex-shrink: 0;
    border: 3px solid currentColor;
    font-size: 0.9rem;
}

.identify-option.correct .identify-option-letter {
    background: var(--color-grass);
    color: var(--color-white);
}

.identify-option.wrong .identify-option-letter {
    background: var(--color-coral);
    color: var(--color-white);
}

.identify-feedback {
    font-weight: 700;
    font-size: 1rem;
    min-height: 1.5em;
    margin-bottom: var(--spacing-sm);
}

.identify-feedback.correct { color: var(--color-grass); }
.identify-feedback.wrong { color: var(--color-text-2); }

.identify-controls { text-align: center; }

.identify-result-score {
    font-size: 1.3rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.identify-result-score strong {
    color: var(--color-sky-1);
    font-size: 2rem;
    font-family: var(--font-heading);
}

.identify-result-score span { color: var(--color-text-3); }

.identify-result-msg {
    font-size: 1.15rem;
    color: var(--color-text-2);
    margin-bottom: var(--spacing-xl);
}

.identify-result-actions {
    display: flex;
    justify-content: center;
}

@media (max-width: 768px) {
    .identify-options { grid-template-columns: 1fr; }
    .identify-image-wrap { height: 160px; }
}

/* ============================================
   数据看板
   ============================================ */
.dashboard-page { padding: var(--spacing-xl) 0; }

.dashboard-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.dashboard-header-icon {
    font-size: 3rem;
    color: var(--color-sky-1);
    margin-bottom: var(--spacing-md);
}

.dashboard-header .page-title { font-size: 2.2rem; color: var(--color-sky-deep); }
.dashboard-header .page-subtitle { color: var(--color-text-2); }

/* 总量卡片 */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.dashboard-stat-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base);
}

.dashboard-stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.dashboard-stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.3rem;
    flex-shrink: 0;
}

.dashboard-stat-info { flex: 1; }

.dashboard-stat-num {
    font-size: 1.8rem;
    font-weight: 900;
    font-family: var(--font-heading);
    color: var(--color-text-1);
    line-height: 1;
}

.dashboard-stat-label {
    font-size: 0.85rem;
    color: var(--color-text-2);
    margin-top: 0.2rem;
}

/* 图表网格 */
.dashboard-charts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.dashboard-chart-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.dashboard-chart-title {
    font-size: 1.1rem;
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.dashboard-chart-title i { color: var(--color-sun); }

.dashboard-chart-body {
    height: 280px;
    position: relative;
}

@media (max-width: 991px) {
    .dashboard-stats { grid-template-columns: repeat(2, 1fr); }
    .dashboard-charts { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .dashboard-stats { grid-template-columns: 1fr; }
    .dashboard-stat-card { padding: var(--spacing-md); }
    .dashboard-stat-num { font-size: 1.4rem; }
    .dashboard-chart-body { height: 220px; }
}

/* ============================================
   飞机组装游戏
   ============================================ */
.assemble-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.assemble-start, .assemble-complete {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.assemble-start-icon, .assemble-complete-icon {
    font-size: 4rem;
    color: var(--color-sky-1);
    margin-bottom: var(--spacing-md);
    animation: bounce-soft 3s ease-in-out infinite;
}

.assemble-start h2, .assemble-complete h2 {
    color: var(--color-sky-deep);
    margin-bottom: var(--spacing-sm);
}

.assemble-start p {
    color: var(--color-text-2);
    margin-bottom: var(--spacing-lg);
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
}

.assemble-tips {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    text-align: left;
    max-width: 360px;
    margin-left: auto;
    margin-right: auto;
}

.assemble-tips span {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.6rem 1rem;
    background: var(--color-cloud);
    border-radius: var(--spacing-sm);
    font-size: 0.95rem;
    color: var(--color-text-2);
    font-weight: 600;
}

.assemble-tips i { color: var(--color-sky-1); }
.assemble-tips .fa-check-circle { color: var(--color-grass); }
.assemble-tips .fa-puzzle-piece { color: var(--color-sun); }

.assemble-play { text-align: center; }

.assemble-hud {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.assemble-hud-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-text-1);
}

.assemble-hud-item .fa-clock { color: var(--color-sky-1); }
.assemble-hud-item .fa-check { color: var(--color-grass); }

/* SVG 舞台 */
.assemble-stage {
    background: linear-gradient(135deg, var(--color-cloud), var(--color-cloud-2));
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    justify-content: center;
    min-height: 420px;
    align-items: center;
}

.assemble-silhouette {
    width: 100%;
    max-width: 800px;
    height: auto;
}

.assemble-slot {
    transition: fill 0.2s ease, stroke 0.2s ease, filter 0.2s ease;
    cursor: pointer;
}

/* 拖拽时：当前零件对应的目标槽位高亮提示 */
.assemble-slot.hint {
    fill: rgba(255, 255, 255, 0.25);
    filter: drop-shadow(0 0 6px var(--color-sky-1));
    animation: slotPulse 0.9s ease-in-out infinite;
}

/* 拖拽悬停到正确槽位上方时的强提示 */
.assemble-slot.over {
    fill: rgba(77, 166, 255, 0.35);
    stroke-width: 4;
    filter: drop-shadow(0 0 12px var(--color-sky-1));
    animation: none;
}

/* 拖拽悬停到错误槽位上方时的提示 */
.assemble-slot.over-wrong {
    fill: rgba(255, 107, 107, 0.25);
    filter: drop-shadow(0 0 6px rgba(255, 107, 107, 0.8));
}

.assemble-slot.filled {
    opacity: 0.7;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.8); }
    to   { opacity: 0.7; transform: scale(1); }
}

@keyframes slotPulse {
    0%, 100% { opacity: 0.6; }
    50%      { opacity: 1; }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%      { transform: translateX(-6px); }
    40%      { transform: translateX(6px); }
    60%      { transform: translateX(-4px); }
    80%      { transform: translateX(4px); }
}

.assemble-part.shake {
    animation: shake 0.4s ease;
    border-color: #FF6B6B;
}

/* 零件区 */
.assemble-parts {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.assemble-part {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: var(--spacing-md);
    background: var(--color-cloud);
    border: 3px solid var(--part-color, var(--color-sky-1));
    border-radius: var(--radius-md);
    cursor: grab;
    transition: all var(--transition-base);
    min-width: 80px;
    -webkit-user-select: none;
    user-select: none;
}

.assemble-part:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-md);
}

.assemble-part:active, .assemble-part.dragging {
    cursor: grabbing;
    opacity: 0.5;
}

.assemble-part.placed {
    opacity: 0.3;
    pointer-events: none;
    border-style: dashed;
}

.assemble-part.ghost {
    width: 80px;
}

.assemble-part-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--part-color, var(--color-sky-1));
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.assemble-part-name {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-text-1);
}

/* 完成界面 */
.assemble-complete-badge { margin-bottom: var(--spacing-lg); }

.assemble-badge-get {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: linear-gradient(135deg, var(--color-sun), var(--color-sun-deep));
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    box-shadow: var(--shadow-sun);
    animation: bounce-soft 2s ease-in-out infinite;
}