/* 响应式设计和移动端优化 */

/* 基础响应式断点 */
:root {
    --mobile-breakpoint: 480px;
    --tablet-breakpoint: 768px;
    --desktop-breakpoint: 1024px;
    --large-breakpoint: 1200px;
}

/* 超小屏幕 (手机竖屏) */
@media screen and (max-width: 480px) {
    .container {
        padding: 8px 12px;
    }
    
    /* 标题优化 */
    .tit {
        font-size: 1.75rem;
        margin: 15px 0 25px;
        line-height: 1.3;
    }
    
    /* 银行卡片网格 - 单列布局 */
    .banks-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-bottom: 30px;
    }
    
    .box {
        padding: 20px 15px;
        border-radius: 15px;
    }
    
    .box:hover {
        transform: translateY(-4px);
    }
    
    /* 银行Logo优化 */
    .navlogo {
        height: 60px;
        margin-bottom: 15px;
    }
    
    .navlogo img {
        max-width: 140px;
        max-height: 45px;
    }
    
    /* 银行操作链接优化 */
    .navGo {
        gap: 6px;
    }
    
    .navGo a {
        padding: 10px 12px;
        font-size: 13px;
        border-radius: 8px;
    }
    
    .navGo a span {
        display: block;
        text-align: center;
    }
    
    /* 标签页优化 */
    .modern-tabs {
        padding: 15px 12px;
        margin-top: 25px;
        border-radius: 15px;
    }
    
    #content {
        padding: 15px 12px;
        border-radius: 12px;
    }
    
    .c-ul {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .c-ul li {
        border-radius: 8px;
    }
    
    .c-ul li a {
        padding: 12px 16px;
        font-size: 13px;
        line-height: 1.4;
    }
    
    /* 页脚优化 */
    .footer {
        padding: 20px 15px;
        border-radius: 15px;
        margin-top: 30px;
    }
    
    .footer-content {
        display: flex;
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }
    
    .footer a {
        margin: 0;
        padding: 8px 16px;
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.1);
        transition: all 0.3s ease;
    }
    
    .footer a:hover {
        background: rgba(255, 255, 255, 0.2);
        transform: none;
    }
    
    .separator {
        display: none;
    }
}

/* 小屏幕 (手机横屏) */
@media screen and (min-width: 481px) and (max-width: 767px) {
    .container {
        padding: 10px 15px;
    }
    
    .tit {
        font-size: 2rem;
        margin: 20px 0 30px;
    }
    
    /* 银行卡片 - 两列布局 */
    .banks-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
        margin-bottom: 40px;
    }
    
    .box {
        padding: 20px;
    }
    
    .navlogo {
        height: 65px;
        margin-bottom: 18px;
    }
    
    .navlogo img {
        max-width: 160px;
        max-height: 50px;
    }
    
    .navGo {
        gap: 7px;
    }
    
    .navGo a {
        padding: 11px 14px;
        font-size: 14px;
    }
    
    .modern-tabs {
        padding: 18px 15px;
        margin-top: 30px;
    }
    
    #content {
        padding: 18px 15px;
    }
    
    .c-ul {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .c-ul li a {
        padding: 13px 16px;
        font-size: 14px;
    }
}

/* 平板屏幕 */
@media screen and (min-width: 768px) and (max-width: 1023px) {
    .container {
        padding: 12px 20px;
    }
    
    .tit {
        font-size: 2.5rem;
        margin: 25px 0 35px;
    }
    
    /* 银行卡片 - 三列布局 */
    .banks-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
        margin-bottom: 45px;
    }
    
    .box {
        padding: 25px;
    }
    
    .navlogo {
        height: 70px;
        margin-bottom: 20px;
    }
    
    .navlogo img {
        max-width: 180px;
        max-height: 55px;
    }
    
    .navGo {
        gap: 8px;
    }
    
    .navGo a {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .modern-tabs {
        padding: 25px 20px;
        margin-top: 35px;
    }
    
    #content {
        padding: 25px 20px;
    }
    
    .c-ul {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
    
    .c-ul li a {
        padding: 14px 18px;
        font-size: 14px;
    }
}

/* 小桌面屏幕 */
@media screen and (min-width: 1024px) and (max-width: 1199px) {
    .banks-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 22px;
    }
    
    .c-ul {
        grid-template-columns: repeat(4, 1fr);
        gap: 12px;
    }
}

/* 大桌面屏幕 */
@media screen and (min-width: 1200px) {
    .banks-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 25px;
    }
    
    .c-ul {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 12px;
    }
}

/* 超大屏幕 */
@media screen and (min-width: 1440px) {
    .banks-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
    }
    
    .box {
        padding: 30px;
    }
    
    .navlogo img {
        max-width: 200px;
        max-height: 65px;
    }
    
    .c-ul {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 14px;
    }
}

/* 横屏模式优化 */
@media screen and (orientation: landscape) and (max-height: 600px) {
    .tit {
        font-size: 1.5rem;
        margin: 10px 0 20px;
    }
    
    .banks-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 15px;
        margin-bottom: 20px;
    }
    
    .box {
        padding: 15px;
    }
    
    .navlogo {
        height: 50px;
        margin-bottom: 10px;
    }
    
    .navlogo img {
        max-width: 120px;
        max-height: 35px;
    }
    
    .navGo {
        gap: 4px;
    }
    
    .navGo a {
        padding: 8px 10px;
        font-size: 12px;
    }
    
    .modern-tabs {
        padding: 15px;
        margin-top: 20px;
    }
    
    #content {
        padding: 15px;
        min-height: 200px;
    }
    
    .footer {
        padding: 15px;
        margin-top: 20px;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .box:hover {
        transform: none;
        box-shadow: var(--shadow-md);
    }
    
    .navGo a:hover {
        transform: none;
        box-shadow: none;
    }
    
    .c-ul li:hover {
        transform: none;
        box-shadow: var(--shadow-sm);
    }
    
    #tabs a:hover {
        transform: none;
        box-shadow: none;
    }
    
    /* 增大触摸目标 */
    .navGo a {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .c-ul li a {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    #tabs a {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

/* 高分辨率屏幕优化 */
@media screen and (-webkit-min-device-pixel-ratio: 2), 
       screen and (min-resolution: 192dpi) {
    .navlogo img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* 打印样式 */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .banks-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .box {
        break-inside: avoid;
        border: 1px solid #ccc;
        box-shadow: none;
        page-break-inside: avoid;
    }
    
    .modern-tabs {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    #tabs {
        display: none;
    }
    
    #content > div {
        display: block !important;
    }
    
    .footer {
        display: none;
    }
}

/* 无障碍访问 */
@media (prefers-reduced-motion: reduce) {
    .box,
    .navGo a,
    .c-ul li,
    #tabs a {
        transition: none;
        animation: none;
    }
}

/* 键盘导航优化 */
@media (prefers-reduced-motion: no-preference) {
    .box:focus-within,
    .navGo a:focus,
    .c-ul li:focus-within,
    #tabs a:focus {
        outline: 2px solid var(--primary-color, #1a73e8);
        outline-offset: 2px;
    }
}

/* 深色模式响应式调整 */
@media (prefers-color-scheme: dark) {
    @media screen and (max-width: 768px) {
        .footer a {
            background: rgba(255, 255, 255, 0.05);
        }
        
        .footer a:hover {
            background: rgba(255, 255, 255, 0.1);
        }
    }
}