/* 企业官网样式文件 - 基础样式 */

/* CSS变量定义 */
:root {
    --primary-color: #1a365d;
    --secondary-color: #d69e2e;
    --text-color: #2d3748;
    --light-gray: #f7fafc;
    --white: #ffffff;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Noto Sans SC', sans-serif;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式 */
html {
    scrollbar-gutter: stable;
    /* 在根元素上隐藏横向溢出，避免移动端出现左右横向滚动条
       （仅 body 上设置 overflow-x: hidden 在部分移动浏览器无法裁剪 fixed 元素） */
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 抽屉打开时禁止滚动 */
body.drawer-open {
    overflow: hidden;
}

/* 动画类 */
.fade-in {
    animation: fadeInUp 0.8s ease;
}

.fade-in-delay {
    animation: fadeInUp 0.8s ease 0.2s both;
}

.fade-in-delay-2 {
    animation: fadeInUp 0.8s ease 0.4s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* SPA过渡动画 */
#app-content {
    transition: opacity 0.3s ease, transform 0.3s ease;
    /* 确保路由加载的页面内容不会横向溢出导致滚动条 */
    overflow-x: hidden;
    max-width: 100%;
}

#app-content.fade-out {
    opacity: 0;
    transform: translateY(20px);
}

#app-content.fade-in {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 图片加载骨架占位（静态渐变底色，不做动画；图片加载后覆盖它） ===== */
.product-image-wrapper,
.news-image-wrapper,
.case-image-wrapper,
.about-home-img-main,
.advantages-banner-image,
.carousel-track,
.pp-card-img,
.case-card-image,
.news-page-card-image {
    position: relative;
    overflow: hidden;
    background: #eceef1;
    background-image: linear-gradient(
        90deg,
        #eceef1 25%,
        #d8dbe0 37%,
        #eceef1 63%
    );
    background-size: 400% 100%;
    background-repeat: no-repeat;
}

/* ===== SEO：视觉隐藏但可被搜索引擎/读屏识别 ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== 悬浮留言按钮：简洁气泡图标，右下角常驻，点击弹提示，再点击打开弹窗 ===== */
.floating-message-wrapper {
    position: fixed;
    right: 16px;
    bottom: 24px;
    z-index: 5000;
    line-height: 0;
}

/* 提示气泡 */
.floating-tip {
    position: absolute;
    right: 70px;
    bottom: 6px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    background: #fff;
    color: #1e293b;
    border-radius: 14px;
    padding: 10px 14px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
    opacity: 0;
    visibility: hidden;
    transform: translateX(12px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    white-space: nowrap;
    cursor: pointer;
    line-height: normal;
}

.floating-tip::after {
    content: '';
    position: absolute;
    right: -8px;
    bottom: 18px;
    border: 8px solid transparent;
    border-left-color: #fff;
}

.floating-tip-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
}

.floating-tip-sub {
    font-size: 0.75rem;
    color: #64748b;
    margin-top: 2px;
}

.floating-message-wrapper.tip-open .floating-tip {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* 按钮本体：圆形渐变 + 气泡图标 */
.floating-message-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.45);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.floating-message-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 10px 28px rgba(59, 130, 246, 0.55);
}

/* 留言弹窗 */
.message-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.message-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.message-modal-overlay.closing {
    opacity: 0;
}

.message-modal-overlay.closing .message-modal {
    transform: translateY(20px) scale(0.95);
}

.message-modal {
    background: #fff;
    border-radius: 20px;
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2.5rem;
    position: relative;
    transform: translateY(20px) scale(0.95);
    transition: transform 0.25s ease;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

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

.message-modal-close {
    position: absolute;
    top: 1.2rem;
    right: 1.2rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #f1f5f9;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #64748b;
    transition: all 0.2s ease;
}

.message-modal-close:hover {
    background: #e2e8f0;
    color: #1e293b;
}

.message-modal-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-right: 2rem;
}

.message-modal-header h2 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.message-modal-header p {
    color: #64748b;
    font-size: 0.9rem;
}

.message-form {
    max-width: 100%;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 0.4rem;
}

.form-group .required {
    color: #ef4444;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem 1rem;
    border: 1.5px solid #e2e8f0;
    border-radius: 10px;
    font-size: 0.95rem;
    color: var(--text-color);
    background: #f8fafc;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3b82f6;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #94a3b8;
}

.submit-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.9rem 2rem;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 0.5rem;
}

.submit-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
}

.submit-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.message-result {
    margin-top: 1rem;
    padding: 0.9rem 1.2rem;
    border-radius: 10px;
    text-align: center;
    font-size: 0.9rem;
}

.message-result.success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.message-result.error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

@media (max-width: 480px) {
    .floating-message-wrapper {
        right: 12px;
        bottom: 18px;
    }

    .floating-message-btn {
        width: 48px;
        height: 48px;
    }

    .floating-message-btn svg {
        width: 22px;
        height: 22px;
    }

    .floating-tip {
        right: 58px;
        bottom: 2px;
        padding: 8px 12px;
    }

    .floating-tip-sub {
        font-size: 0.7rem;
    }

    .message-modal {
        padding: 1.8rem;
        margin: 1rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}