/* ============================================
   关于我们页面样式 - About Page Styles
   基于 BEM 命名规范
   ============================================ */
@import '../css/sub.css';

/* --------------------------------------------
   页面主内容区 - Main Content
   -------------------------------------------- */
.p-about {
    /* padding: 0 20px; */
}

/* --------------------------------------------
   公司标语区域 - Company Slogan
   -------------------------------------------- */
.p-about-slogan {
    text-align: center;
    padding: 4rem 0;
    position: relative;
}

.p-about-slogan::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 91, 172, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.p-about-slogan__text {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    position: relative;
    display: inline-block;
    opacity: 0;
    transform: translateY(20px);
}

.p-about-slogan__text.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.8s ease;
}

.p-about-slogan__text::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 2px;
}

/* --------------------------------------------
   公司简介卡片 - Company Intro Card
   -------------------------------------------- */
.p-about-intro {
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-secondary) 100%);
    border-radius: 16px;
    padding: 3rem;
    margin-bottom: 4rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border-light);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
}

.p-about-intro.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.8s ease;
}

.p-about-intro::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.p-about-intro__text {
    font-size: 1.125rem;
    line-height: 2;
    color: var(--color-text);
    text-align: justify;
    text-indent: 36px;
    margin-bottom: 10px;
}

/* --------------------------------------------
   产品展示区域 - Products Section
   -------------------------------------------- */
.p-about-products {
    margin-bottom: 4rem;
    cursor: pointer;
}

.p-about-section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.p-about-section-header__title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 0.75rem;
    opacity: 0;
    transform: translateY(20px);
}

.p-about-section-header__title.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: all 0.6s ease;
}

.p-about-section-header__line {
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    margin: 0 auto;
    border-radius: 2px;
}

.p-about-products__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.p-about-product {
    background: var(--color-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
}

.p-about-product.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.p-about-product:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.p-about-product__image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.p-about-product:hover .p-about-product__image {
    transform: scale(1.05);
}

.p-about-product__content {
    padding: 1.5rem;
}

.p-about-product__title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.p-about-product__desc {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* --------------------------------------------
   公司理念区域 - Philosophy Section
   -------------------------------------------- */
.p-about-philosophy {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: 16px;
    padding: 4rem 3rem;
    margin-bottom: 4rem;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: scale(0.95);
}

.p-about-philosophy.is-visible {
    opacity: 1;
    transform: scale(1);
    transition: all 0.8s ease;
}

.p-about-philosophy::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 30px;
    font-family: var(--font-display);
    font-size: 200px;
    color: rgba(255, 255, 255, 0.1);
    line-height: 1;
}

.p-about-philosophy__content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--color-text-white);
}

.p-about-philosophy__title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.p-about-philosophy__text {
    font-size: 1.25rem;
    line-height: 2;
    /* max-width: 800px; */
    margin: 0 auto;
    opacity: 1;
}

/* --------------------------------------------
   动画关键帧 - Animations
   -------------------------------------------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes countUp {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* --------------------------------------------
   响应式设计 - Responsive Design
   -------------------------------------------- */

/* 平板设备: 768px - 1199px */
@media screen and (max-width: 1199px) {
    .p-about-banner {
        height: 350px;
    }

    .p-about-banner__title {
        font-size: 2.5rem;
    }

    .p-about-banner__subtitle {
        font-size: 1.1rem;
    }

    .p-about-slogan__text {
        font-size: 2rem;
    }

    .p-about-products__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .p-about-intro {
        padding: 2rem;
    }

    .p-about-philosophy {
        padding: 3rem 2rem;
    }
}

/* 移动设备: ≤767px */
@media screen and (max-width: 767px) {
    .p-about-banner {
        height: 280px;
    }

    .p-about-banner__title {
        font-size: 1.75rem;
    }

    .p-about-banner__subtitle {
        font-size: 0.9rem;
        letter-spacing: 1px;
    }

    .p-about-breadcrumb__inner {
        padding: 0 10px;
    }

    .p-about-slogan {
        padding: 2.5rem 0;
    }

    .p-about-slogan__text {
        font-size: 1.5rem;
    }

    .p-about-intro {
        padding: 1.5rem;
        margin-bottom: 2.5rem;
    }

    .p-about-intro__text {
        font-size: 1rem;
        line-height: 1.8;

    }

    .p-about-products__grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .p-about-section-header__title {
        font-size: 1.5rem;
    }

    .p-about-philosophy {
        padding: 2.5rem 1.5rem;
        margin-bottom: 2.5rem;
    }

    .p-about-philosophy__title {
        font-size: 1.5rem;
    }

    .p-about-philosophy__text {
        font-size: 1rem;
    }

    .p-about-philosophy::before {
        font-size: 120px;
        top: -10px;
        left: 15px;
    }
}

/* 小屏移动设备 */
@media screen and (max-width: 480px) {
    .p-about-banner {
        height: 240px;
    }

    .p-about-banner__title {
        font-size: 1.5rem;
    }

    .p-about {
        padding: 0 15px;
    }
}

/* --------------------------------------------
   减少动画偏好 - Reduced Motion
   -------------------------------------------- */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .p-about-slogan__text,
    .p-about-intro,
    .p-about-product,
    .p-about-section-header__title,
    .p-about-philosophy {
        opacity: 1;
        transform: none;
    }
}