/* Enhanced Page Styles - Jingtuo Alumina Website */
/* 统一的子页面样式优化 */

/* ============================================
   1. 全局背景色优化 - 避免纯白视觉疲劳
   ============================================ */

/* 页面主体背景 */
.page-wrapper {
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    min-height: 100vh;
}

/* 内容区域背景 */
.content-section {
    background: linear-gradient(145deg, #ffffff 0%, #fafbfc 100%);
}

/* 交替区块背景 */
.section-alt {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #f0f9ff 100%);
}

/* 深色区块背景 */
.section-dark {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: white;
}

/* ============================================
   2. Header 组件优化
   ============================================ */

/* Header 背景优化 - 玻璃拟态效果 */
.header-enhanced {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 滚动后的 Header */
.header-enhanced.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.05);
    height: 70px;
}

/* Logo 优化 */
.logo-enhanced {
    display: flex;
    align-items: center;
    transition: transform 0.3s ease;
}

.logo-enhanced:hover {
    transform: scale(1.02);
}

.logo-enhanced img {
    height: 52px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

/* 导航链接优化 */
.nav-list-enhanced {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link-enhanced {
    font-weight: 500;
    color: #1e293b;
    padding: 10px 18px;
    border-radius: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    text-decoration: none;
    font-size: 15px;
}

.nav-link-enhanced::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #2d5a87, #3d7ab5);
    transition: all 0.3s ease;
    transform: translateX(-50%);
    border-radius: 2px;
}

.nav-link-enhanced:hover {
    color: #2d5a87;
    background: rgba(45, 90, 135, 0.08);
}

.nav-link-enhanced:hover::after {
    width: 60%;
}

.nav-link-enhanced.active {
    color: #2d5a87;
    background: rgba(45, 90, 135, 0.12);
}

.nav-link-enhanced.active::after {
    width: 60%;
}

/* 下拉菜单优化 */
.dropdown-enhanced {
    position: relative;
}

.dropdown-menu-enhanced {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    min-width: 240px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: 16px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.08);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1001;
    padding: 12px;
    overflow: hidden;
}

.dropdown-enhanced:hover .dropdown-menu-enhanced {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu-enhanced::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 12px;
    background: white;
    border-left: 1px solid rgba(226, 232, 240, 0.8);
    border-top: 1px solid rgba(226, 232, 240, 0.8);
    transform: translateX(-50%) rotate(45deg);
}

.dropdown-menu-enhanced li {
    list-style: none;
}

.dropdown-menu-enhanced a {
    display: block;
    padding: 12px 16px;
    color: #1e293b;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.2s ease;
    font-size: 14px;
    font-weight: 500;
}

.dropdown-menu-enhanced a:hover {
    background: linear-gradient(135deg, rgba(45, 90, 135, 0.1), rgba(61, 122, 181, 0.1));
    color: #2d5a87;
    transform: translateX(4px);
}

/* 语言切换器优化 */
.lang-switcher-enhanced {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(241, 245, 249, 0.8);
    padding: 6px;
    border-radius: 30px;
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.lang-btn-enhanced {
    padding: 6px 14px;
    border: none;
    background: transparent;
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lang-btn-enhanced:hover {
    color: #2d5a87;
}

.lang-btn-enhanced.active {
    background: linear-gradient(135deg, #2d5a87, #3d7ab5);
    color: white;
    box-shadow: 0 2px 8px rgba(45, 90, 135, 0.3);
}

/* ============================================
   3. 页面头部区域优化
   ============================================ */

.page-header-enhanced {
    background: linear-gradient(135deg, #1e3a5f 0%, #2d5a87 50%, #3d7ab5 100%);
    color: white;
    padding: 140px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255,255,255,0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 100%, rgba(255,255,255,0.05) 0%, transparent 50%);
    pointer-events: none;
}

.page-header-enhanced .header-badge {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    border: 1px solid rgba(255,255,255,0.3);
}

.page-header-enhanced h1 {
    font-size: 52px;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.2);
    letter-spacing: -1px;
    position: relative;
    z-index: 1;
}

.page-header-enhanced p {
    font-size: 20px;
    opacity: 0.95;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
    font-weight: 300;
    position: relative;
    z-index: 1;
}

/* ============================================
   4. 按钮交互效果优化
   ============================================ */

/* 主要按钮 */
.btn-primary-enhanced {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2d5a87, #3d7ab5);
    color: white;
    padding: 14px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(45, 90, 135, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-primary-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary-enhanced:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(45, 90, 135, 0.4);
}

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

.btn-primary-enhanced:active {
    transform: translateY(-1px);
}

/* 次要按钮 */
.btn-secondary-enhanced {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: white;
    color: #2d5a87;
    padding: 14px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    border: 2px solid #2d5a87;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-secondary-enhanced:hover {
    background: #2d5a87;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(45, 90, 135, 0.25);
}

/* 幽灵按钮 */
.btn-ghost-enhanced {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: #2d5a87;
    padding: 14px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    border: 2px solid rgba(45, 90, 135, 0.3);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-ghost-enhanced:hover {
    background: rgba(45, 90, 135, 0.1);
    border-color: #2d5a87;
    transform: translateY(-3px);
}

/* ============================================
   5. 卡片组件优化
   ============================================ */

.card-enhanced {
    background: linear-gradient(145deg, #ffffff 0%, #fafbfc 100%);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(226, 232, 240, 0.6);
    position: relative;
}

.card-enhanced:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1), 0 8px 16px rgba(45, 90, 135, 0.1);
    border-color: rgba(45, 90, 135, 0.2);
}

.card-enhanced .card-image {
    height: 240px;
    overflow: hidden;
    position: relative;
}

.card-enhanced .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-enhanced:hover .card-image img {
    transform: scale(1.08);
}

.card-enhanced .card-content {
    padding: 28px;
}

.card-enhanced .card-title {
    font-size: 22px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.card-enhanced .card-text {
    color: #64748b;
    line-height: 1.7;
    font-size: 15px;
}

/* ============================================
   6. 表单元素优化
   ============================================ */

.form-input-enhanced {
    width: 100%;
    padding: 14px 18px;
    font-size: 15px;
    color: #1e293b;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    transition: all 0.3s ease;
    outline: none;
}

.form-input-enhanced:hover {
    border-color: #cbd5e1;
}

.form-input-enhanced:focus {
    border-color: #2d5a87;
    box-shadow: 0 0 0 4px rgba(45, 90, 135, 0.1);
}

.form-input-enhanced::placeholder {
    color: #94a3b8;
}

.form-label-enhanced {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
}

.form-group-enhanced {
    margin-bottom: 24px;
}

/* ============================================
   7. 标签和徽章优化
   ============================================ */

.tag-enhanced {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.tag-blue {
    background: linear-gradient(135deg, #e0f2fe, #dbeafe);
    color: #1e40af;
    border: 1px solid rgba(30, 64, 175, 0.1);
}

.tag-green {
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
    color: #166534;
    border: 1px solid rgba(22, 101, 52, 0.1);
}

.tag-purple {
    background: linear-gradient(135deg, #ede9fe, #ddd6fe);
    color: #5b21b6;
    border: 1px solid rgba(91, 33, 182, 0.1);
}

.tag-amber {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #92400e;
    border: 1px solid rgba(146, 64, 14, 0.1);
}

.tag-pink {
    background: linear-gradient(135deg, #fce7f3, #fbcfe8);
    color: #be185d;
    border: 1px solid rgba(190, 24, 93, 0.1);
}

/* ============================================
   8. 滚动动画效果
   ============================================ */

/* 淡入上移动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* 延迟动画类 */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* 滚动显示动画 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   9. 响应式优化
   ============================================ */

@media (max-width: 768px) {
    .header-enhanced {
        height: 70px;
    }
    
    .header-enhanced.scrolled {
        height: 60px;
    }
    
    .page-header-enhanced {
        padding: 100px 0 60px;
    }
    
    .page-header-enhanced h1 {
        font-size: 36px;
    }
    
    .page-header-enhanced p {
        font-size: 16px;
    }
    
    .nav-list-enhanced {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
}

/* ============================================
   10. 辅助样式
   ============================================ */

/* 渐变文字 */
.gradient-text {
    background: linear-gradient(135deg, #2d5a87, #3d7ab5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 玻璃拟态效果 */
.glass-effect {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* 阴影效果 */
.shadow-soft {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
}

.shadow-medium {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08), 0 4px 6px rgba(0, 0, 0, 0.04);
}

.shadow-strong {
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.08);
}