/**
 * Cases Page Styles
 * 深色科技风格设计
 * 
 * @package Milestrong
 * @since 2.0.0
 */

/* ========================================
   Hero Banner 区块
   ======================================== */

.cases-hero-banner {
    position: relative;
    width: 100vw;
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
    overflow: hidden;
    background: #0f1419;
    min-height: 400px;
    background-size: 100% auto !important;
    background-position: center center !important;
    background-repeat: no-repeat !important;
}

.cases-hero-banner-image {
    width: 100%;
    height: 100%;
    min-height: 400px;
    display: block;
    object-fit: cover;
}

/* ========================================
   案例列表区（CASE STUDIES�?
   ======================================== */

.case-studies-section {
    background: #0f1419;
    padding: 80px 0 100px;
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.case-studies-container {
    max-width: 1440px;
    margin: 0 auto;
}

/* 标题和描�?*/
.case-studies-header {
    text-align: center;
    margin-bottom: 60px;
}

.case-studies-title {
    font-size: 48px;
    font-weight: 700;
    color: #017fff;
    margin: 0 0 20px 0;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.case-studies-description {
    font-size: 16px;
    line-height: 1.8;
    color: #fff;
    max-width: 900px;
    margin: 0 auto;
}

/* 案例网格布局 */
.case-studies-grid {
    display: grid;
    gap: 30px;
    margin-bottom: 60px;
}

.case-studies-grid.layout-grid {
    grid-template-columns: repeat(3, 1fr);
}

.case-studies-grid.layout-list {
    grid-template-columns: 1fr;
}

/* 案例卡片 */
.case-card {
    background: #1a2332;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    display: flex;
    flex-direction: column;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(1, 127, 255, 0.1), rgba(0, 102, 204, 0.1));
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    z-index: 1;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(1, 127, 255, 0.2);
    border-color: rgba(1, 127, 255, 0.3);
}

.case-card:hover::before {
    opacity: 1;
}

.case-card-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
    position: relative;
    z-index: 2;
}

/* 卡片图片 */
.case-card-image {
    width: calc(100% - 24px);
    max-width: 100%;
    height: 240px;
    overflow: hidden;
    position: relative;
    background: #0f1419;
    border-radius: 12px;
    margin: 12px 12px 0 12px;
}

.case-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 12px;
}

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

/* 卡片内容 */
.case-card-content {
    padding: 24px 28px 28px;
    position: relative;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-card-title {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
    margin: 0 0 16px 0;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.3s ease;
    flex: 1;
}

.case-card:hover .case-card-title {
    color: #017fff;
}

.case-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.case-card-date {
    font-size: 14px;
    color: #fff;
    margin: 0;
}

/* View More 按钮 */
.case-card-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 24px;
    background: linear-gradient(45deg, #017fff, #0066cc);
    color: #ffffff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.case-card-button::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;
}

.case-card:hover .case-card-button::before {
    left: 100%;
}

.case-card-button svg {
    transition: transform 0.3s ease;
}

.case-card:hover .case-card-button svg {
    transform: translateX(4px);
}

/* 列表布局特殊样式 */
.layout-list .case-card {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 0;
}

.layout-list .case-card-image {
    height: 100%;
    min-height: 300px;
}

.layout-list .case-card-content {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.layout-list .case-card-title {
    font-size: 24px;
    margin-bottom: 16px;
}

/* 分页导航 - 复刻 products 风格 */
.case-studies-pagination {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    margin-top: 60px;
}

.case-studies-pagination::-webkit-scrollbar {
    display: none;
}

.case-studies-pagination ul {
    display: flex;
    align-items: center;
    gap: 50px;
    list-style: none;
    margin: 0;
    padding: 4px 0;
    width: max-content;
    min-width: 100%;
    justify-content: center;
}

.case-studies-pagination li {
    margin: 0;
    flex-shrink: 0;
}

/* 所有页码按钮：圆形、白底、深色文字 */
.case-studies-pagination a,
.case-studies-pagination span.current {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    padding: 0;
    background: #ffffff;
    color: #1a1a2e;
    border: none;
    border-radius: 50%;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.2s ease;
    line-height: 1;
}

.case-studies-pagination a:hover {
    background: #017fff;
    color: #ffffff;
    transform: none;
}

/* 当前页：蓝色 */
.case-studies-pagination span.current {
    background: #017fff;
    color: #ffffff;
}

/* 省略号永不显示 */
.case-studies-pagination .dots {
    display: none !important;
}

/* 禁用状态（prev/next 无链接时） */
.case-studies-pagination .prev span,
.case-studies-pagination .next span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background: #ffffff;
    color: #1a1a2e;
    border-radius: 50%;
    opacity: 0.4;
    cursor: not-allowed;
    font-size: 15px;
    font-weight: 600;
}

/* Load More 按钮 */
.load-more-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 40px;
    background: linear-gradient(45deg, #017fff, #0066cc);
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.load-more-button::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;
}

.load-more-button:hover::before {
    left: 100%;
}

.load-more-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(1, 127, 255, 0.4);
}

.load-more-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 无案例提�?*/
.no-cases-found {
    text-align: center;
    padding: 80px 20px;
    color: #718096;
    font-size: 18px;
}

/* ========================================
   联系我们区（Contact Us�?
   ======================================== */

.contact-us-section {
    background: #0f1419;
    padding: 100px 0;
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.contact-us-container {
    max-width: 1440px;
    margin: 0 auto;
}

/* 标题 */
.contact-us-header {
    text-align: center;
    margin-bottom: 60px;
}

.contact-us-title {
    font-size: 48px;
    font-weight: 700;
    margin: 0 0 20px 0;
    text-transform: uppercase;
    letter-spacing: 2px;
    line-height: 1.2;
}

.contact-us-title .title-highlight {
    color: #017fff;
}

.contact-us-title .title-normal {
    color: #ffffff;
}

.contact-us-middle-title {
    font-size: 20px;
    color: #fff;
    margin: 0 0 12px 0;
    font-weight: 500;
}

.contact-us-subtitle {
    font-size: 18px;
    color: #fff;
    margin: 0;
}

/* 联系表单 */
.contact-form {
    background: transparent;
    padding: 0;
}

/* 表单内部两列布局 */
.form-grid-two-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 30px;
}

.form-column-left,
.form-column-right {
    display: flex;
    flex-direction: column;
    gap: 40px;
    justify-content: space-evenly;
}

/* Message字段占据右列剩余高度 */
.form-field-message {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.form-field-message textarea {
    flex: 1;
    min-height: 150px;
}

/* 表单字段容器 */
.form-group {
    position: relative;
}

/* 输入框样式 - 深色背景 */
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
    width: 100%;
    padding: 16px 24px;
    background: #1b1a22;
    border: none;
    border-radius: 50px;
    font-size: 14px;
    color: #ffffff;
    box-sizing: border-box;
    outline: none;
    transition: all 0.3s ease;
    font-family: inherit;
}

.contact-form input[type="text"]::placeholder,
.contact-form input[type="email"]::placeholder,
.contact-form textarea::placeholder {
    color: #6b7280;
}

.contact-form input[type="text"]:focus,
.contact-form input[type="email"]:focus,
.contact-form textarea:focus {
    background: #252430;
    box-shadow: 0 0 0 2px rgba(1, 127, 255, 0.2);
}

/* Message文本域 - 圆角矩形 */
.contact-form textarea {
    border-radius: 20px;
    resize: vertical;
    padding: 16px 24px;
}

/* 验证码字段 - 嵌入式半圆形设计 */
.form-group-captcha {
    position: relative;
}

.form-group-captcha input {
    padding-right: 140px; /* 为验证码区域留出空间 */
}

/* 表单消息样式 */
.hidden {
    display: none !important;
}

#cases-form-messages {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.captcha-image-inline {
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #1b1a22;
    border-radius: 0 50px 50px 0; /* 右侧半圆 */
    border-left: 1px solid #2d2c38;
    cursor: pointer;
    transition: background 0.3s ease;
}

.captcha-image-inline:hover {
    background: #252430;
}

.captcha-image-inline img {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    height: 32px;
    border-radius: 6px 20px 20px 6px;
    cursor: pointer;
    border: none;
    background: #FFFFFF;
}

/* 提交按钮容器间距（样式由 contact-form-unified.css 统一控制） */
.form-submit {
    text-align: center;
    margin-top: 30px;
}

/* 提交按钮箭头图标 */
.submit-arrow {
    display: inline-block;
    width: 20px;
    height: 20px;
    position: absolute;
    right: 30px;
    transform: rotate(-45deg);
}

.submit-arrow::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    border-top: 2px solid #ffffff;
    border-right: 2px solid #ffffff;
    transform: translate(-30%, -40%) rotate(45deg);
}

.submit-arrow::after {
    content: '';
    position: absolute;
    top: 54%;
    left: 0;
    width: 28px;
    height: 2px;
    background-color: #ffffff;
    transform: translateY(50%);
}

/* 隐私声明 */
.form-privacy {
    margin-top: 24px;
    text-align: center;
}

.form-privacy p {
    font-size: 13px;
    color: #fff;
    margin: 0;
    line-height: 1.6;
}

/* ========================================
   响应式设�?- 平板端（768px-1199px�?
   ======================================== */

@media (max-width: 1199px) {
    /* 案例列表�?*/
    .case-studies-container {
        padding: 0 30px;
    }
    
    .case-studies-title {
        font-size: 40px;
    }
    
    .case-studies-description {
        font-size: 15px;
    }
    
    .case-studies-grid.layout-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    .case-card-image {
        height: 280px;
        margin: 10px 10px 0 10px;
    }
    
    .case-card-content {
        padding: 20px 24px 24px;
    }
    
    .case-card-title {
        font-size: 17px;
        margin-bottom: 14px;
    }
    
    /* 列表布局 */
    .layout-list .case-card {
        grid-template-columns: 350px 1fr;
    }
    
    .layout-list .case-card-content {
        padding: 30px;
    }
    
    .layout-list .case-card-title {
        font-size: 20px;
    }
    
    /* 分页 */
    .case-studies-pagination ul {
        gap: 30px;
    }
    
    /* 联系我们区 */
    .contact-us-container {
        padding: 0 30px;
    }
    
    .contact-us-title {
        font-size: 40px;
    }
    
    .contact-us-middle-title {
        font-size: 18px;
    }
    
    .contact-us-subtitle {
        font-size: 17px;
    }
    
    /* 表单内部改为单列 */
    .form-grid-two-columns {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .form-column-left,
    .form-column-right {
        gap: 20px;
    }
    
    .form-field-message textarea {
        min-height: 120px;
    }
    
    .submit-button {
        width: 100%;
        justify-content: center;
    }
    
    .submit-arrow {
        right: 25px;
    }
}

/* ========================================
   响应式设�?- 移动端（<768px�?
   ======================================== */

@media (max-width: 767px) {
    /* 案例列表�?*/
    .case-studies-section {
        padding: 60px 0 80px;
    }
    
    .case-studies-container {
        padding: 0 20px;
    }
    
    .case-studies-header {
        margin-bottom: 40px;
    }
    
    .case-studies-title {
        font-size: 32px;
        letter-spacing: 1px;
    }
    
    .case-studies-description {
        font-size: 14px;
    }
    
    .case-studies-grid {
        gap: 20px;
        margin-bottom: 40px;
    }
    
    .case-studies-grid.layout-grid,
    .case-studies-grid.layout-list {
        grid-template-columns: 1fr;
    }
    
    .case-card-image {
        height: 240px;
        margin: 8px 8px 0 8px;
    }
    
    .case-card-content {
        padding: 16px 20px 20px;
    }
    
    .case-card-title {
        font-size: 16px;
        margin-bottom: 12px;
    }
    
    .case-card-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .case-card-button {
        width: 100%;
        justify-content: center;
        padding: 8px 20px;
        font-size: 13px;
    }
    
    /* 列表布局移动�?*/
    .layout-list .case-card {
        grid-template-columns: 1fr;
    }
    
    .layout-list .case-card-image {
        height: 200px;
        min-height: auto;
    }
    
    .layout-list .case-card-content {
        padding: 20px;
    }
    
    .layout-list .case-card-title {
        font-size: 16px;
    }
    
    /* 分页 */
    .case-studies-pagination {
        margin-top: 40px;
    }
    
    .case-studies-pagination ul {
        gap: 20px;
    }
    
    .case-studies-pagination a,
    .case-studies-pagination span.current {
        width: 30px;
        height: 30px;
        font-size: 13px;
    }
    
    .load-more-button {
        width: 100%;
        justify-content: center;
        padding: 12px 30px;
        font-size: 15px;
    }
    
    /* 联系我们区 */
    .contact-us-section {
        padding: 80px 0;
    }
    
    .contact-us-container {
        padding: 0 20px;
    }
    
    .contact-us-header {
        margin-bottom: 40px;
    }
    
    .contact-us-title {
        font-size: 32px;
        letter-spacing: 1px;
    }
    
    .contact-us-middle-title {
        font-size: 16px;
    }
    
    .contact-us-subtitle {
        font-size: 16px;
    }
    
    /* 表单内部改为单列 */
    .form-grid-two-columns {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .form-column-left,
    .form-column-right {
        gap: 16px;
    }
    
    .form-field-message textarea {
        min-height: 100px;
    }
    
    .form-group-captcha input {
        padding-right: 110px; /* 移动端缩小验证码区域 */
    }
    
    .captcha-image-inline {
        width: 100px;
    }
    
    .contact-form input[type="text"],
    .contact-form input[type="email"],
    .contact-form textarea {
        padding: 14px 20px;
        font-size: 14px;
    }
    
    .form-submit {
        margin-top: 24px;
    }
    
    .submit-button {
        width: 100%;
        justify-content: center;
        padding: 14px 40px;
        font-size: 16px;
    }
    
    .submit-arrow {
        right: 25px;
    }
    
    .form-privacy p {
        font-size: 12px;
    }
}

/* ========================================
   动画效果
   ======================================== */

/* 卡片进入动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.case-card {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.case-card:nth-child(1) { animation-delay: 0.1s; }
.case-card:nth-child(2) { animation-delay: 0.2s; }
.case-card:nth-child(3) { animation-delay: 0.3s; }
.case-card:nth-child(4) { animation-delay: 0.4s; }
.case-card:nth-child(5) { animation-delay: 0.5s; }
.case-card:nth-child(6) { animation-delay: 0.6s; }
.case-card:nth-child(7) { animation-delay: 0.7s; }
.case-card:nth-child(8) { animation-delay: 0.8s; }
.case-card:nth-child(9) { animation-delay: 0.9s; }

/* 加载状�?*/
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* 表单提交成功/失败消息 */
.form-message {
    padding: 16px 24px;
    border-radius: 8px;
    margin-bottom: 24px;
    text-align: center;
    font-size: 15px;
    font-weight: 500;
}

.form-message.success {
    background: rgba(72, 187, 120, 0.1);
    border: 1px solid rgba(72, 187, 120, 0.3);
    color: #48bb78;
}

.form-message.error {
    background: rgba(245, 101, 101, 0.1);
    border: 1px solid rgba(245, 101, 101, 0.3);
    color: #f56565;
}