/* ============================================
   AOSHOW翱烁 - 关于我们页面样式
   前缀：ab-
   主题色：#cc4e15 (橙) / #0866b2 (蓝)
   ============================================ */

/* ===== 重置与基础 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    color: #333;
    background: #fff;
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* ===== 主题色变量 ===== */
:root {
    --ab-orange: #cc4e15;
    --ab-blue: #0866b2;
    --ab-dark: #222;
    --ab-gray: #666;
    --ab-light-gray: #f5f5f5;
    --ab-border: #e5e5e5;
}

/* ============================================
   主体内容区（1320px居中）
   ============================================ */
.ab-main {
    padding: 30px 0 80px;
    min-height: 100vh;
}

.ab-container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   面包屑导航
   ============================================ */
.ab-breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    font-size: 13px;
    color: #888;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--ab-border);
}

.ab-breadcrumb-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    color: var(--ab-orange);
    margin-right: 6px;
    transition: all 0.3s;
}

.ab-breadcrumb-icon:hover {
    color: var(--ab-blue);
    transform: scale(1.15);
}

.ab-breadcrumb-text { margin-right: 2px; }

.ab-breadcrumb-link {
    color: #888;
    transition: color 0.3s;
}

.ab-breadcrumb-link:hover { color: var(--ab-orange); }

.ab-breadcrumb-sep {
    margin: 0 8px;
    color: #ccc;
}

.ab-breadcrumb-current {
    color: #333;
    font-weight: 500;
}

/* ============================================
   内容布局
   ============================================ */
.ab-content-wrapper {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

/* ============================================
   左侧边栏
   ============================================ */
.ab-sidebar {
    width: 280px;
    flex-shrink: 0;
}

.ab-sidebar-box {
    margin-bottom: 25px;
    border: 1px solid var(--ab-border);
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.04);
}

.ab-sidebar-title {
    background: linear-gradient(135deg, var(--ab-orange), #d95e22);
    padding: 14px 20px;
    display: flex;
    align-items: baseline;
    gap: 8px;
    box-shadow: 0 2px 8px rgba(204, 78, 21, 0.25);
}

.ab-sidebar-title-cn {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
}

.ab-sidebar-title-en {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
    letter-spacing: 1px;
}

/* 侧边栏菜单 */
.ab-sidebar-menu li {
    border-bottom: 1px solid var(--ab-border);
}

.ab-sidebar-menu li:last-child { border-bottom: none; }

.ab-sidebar-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 20px;
    font-size: 14px;
    color: #444;
    transition: all 0.3s;
    position: relative;
}

.ab-sidebar-link i {
    font-size: 11px;
    color: #bbb;
    transition: all 0.3s;
}

.ab-sidebar-link:hover,
.ab-sidebar-link.ab-active {
    background: rgba(204, 78, 21, 0.05);
    color: var(--ab-orange);
    padding-left: 25px;
}

.ab-sidebar-link:hover i,
.ab-sidebar-link.ab-active i {
    color: var(--ab-orange);
}

.ab-sidebar-link.ab-active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--ab-orange);
}

/* 侧边栏联系信息 */
.ab-sidebar-contact li {
    padding: 11px 20px;
    font-size: 13px;
    color: #555;
    border-bottom: 1px solid var(--ab-border);
    line-height: 1.7;
}

.ab-sidebar-contact li:last-child { border-bottom: none; }

.ab-sidebar-contact li strong {
    color: #222;
    font-size: 14px;
}

.ab-sidebar-contact li span { color: #888; }

/* 在线留言按钮 */
.ab-sidebar-message { margin-top: 25px; }

.ab-sidebar-message a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    height: 75px;
    background: linear-gradient(135deg, #3a3a3a, #2b2b2b);
    color: #fff;
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 2px;
    border-radius: 4px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.ab-sidebar-message a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s;
}

.ab-sidebar-message a:hover::before { left: 100%; }

.ab-sidebar-message a:hover {
    background: linear-gradient(135deg, var(--ab-orange), #d95e22);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(204, 78, 21, 0.35);
}

.ab-sidebar-message i { font-size: 20px; }

/* ============================================
   右侧内容区
   ============================================ */
.ab-content-right {
    flex: 1;
    min-width: 0;
}

/* 标题区 */
.ab-title-area {
    margin-bottom: 30px;
}

.ab-title-en {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    letter-spacing: 1px;
    margin-bottom: 5px;
    font-family: "Helvetica Neue", Arial, sans-serif;
}

.ab-title-cn {
    font-size: 28px;
    font-weight: 800;
    color: var(--ab-orange);
    margin-bottom: 15px;
}

.ab-title-line {
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--ab-orange), var(--ab-blue));
    border-radius: 2px;
    box-shadow: 0 2px 8px rgba(204, 78, 21, 0.3);
}

/* 纯文本内容 */
.ab-text-content {
    margin-bottom: 50px;
}

.ab-text-paragraph {
    font-size: 15px;
    color: #444;
    line-height: 2;
    margin-bottom: 20px;
    text-align: justify;
    text-indent: 2em;
}

/* ============================================
   折叠卡片效果图片组
   ============================================ */
.ab-fold-cards {
    position: relative;
    width: 100%;
    height: 380px;
    perspective: 1500px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 20px;
}

.ab-fold-card {
    position: absolute;
    width: 260px;
    height: 320px;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-style: preserve-3d;
}

.ab-fold-inner {
    width: 100%;
    height: 100%;
    border-radius: 14px;
    box-shadow:
        0 15px 40px rgba(0, 0, 0, 0.25),
        inset 0 2px 10px rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
    background: #1a1a2e;
}

.ab-fold-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 30% 20%, rgba(255,255,255,0.15) 0%, transparent 50%);
    z-index: 1;
}

.ab-fold-inner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
    z-index: 1;
}

.ab-fold-card:hover .ab-fold-inner img {
    transform: scale(1.08);
}

.ab-fold-label {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px 15px 18px;
    text-align: center;
    font-size: 17px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 3px;
    z-index: 3;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
    background: linear-gradient(180deg, transparent, rgba(0,0,0,0.4));
}

/* 4张卡片使用真实图片，无需渐变背景 */

/* 初始折叠状态：叠加在一起，不同旋转角度 */
.ab-fold-1 {
    transform: translateX(-120px) rotate(-12deg) translateY(10px);
    z-index: 1;
}
.ab-fold-2 {
    transform: translateX(-40px) rotate(-4deg) translateY(-5px);
    z-index: 2;
}
.ab-fold-3 {
    transform: translateX(40px) rotate(4deg) translateY(-5px);
    z-index: 3;
}
.ab-fold-4 {
    transform: translateX(120px) rotate(12deg) translateY(10px);
    z-index: 4;
}

/* hover时展开：卡片向两侧展开，旋转归零，上浮 */
.ab-fold-cards:hover .ab-fold-1 {
    transform: translateX(-200px) rotate(-6deg) translateY(-15px);
    z-index: 1;
}
.ab-fold-cards:hover .ab-fold-2 {
    transform: translateX(-70px) rotate(-2deg) translateY(-25px);
    z-index: 2;
}
.ab-fold-cards:hover .ab-fold-3 {
    transform: translateX(70px) rotate(2deg) translateY(-25px);
    z-index: 3;
}
.ab-fold-cards:hover .ab-fold-4 {
    transform: translateX(200px) rotate(6deg) translateY(-15px);
    z-index: 4;
}

/* 单张卡片hover时放大到最前 */
.ab-fold-card:hover {
    z-index: 10 !important;
}

.ab-fold-card:hover .ab-fold-inner {
    box-shadow:
        0 25px 60px rgba(0, 0, 0, 0.3),
        inset 0 2px 10px rgba(255, 255, 255, 0.25);
}



/* 卡片底部装饰条 */
.ab-fold-inner::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    z-index: 2;
}

/* ============================================
   响应式适配
   ============================================ */
@media (max-width: 1024px) {
    .ab-content-wrapper {
        flex-direction: column;
    }
    .ab-sidebar {
        width: 100%;
    }
    .ab-fold-cards {
        height: 320px;
    }
    .ab-fold-card {
        width: 200px;
        height: 260px;
    }
    .ab-fold-inner i {
        font-size: 48px;
    }
    .ab-fold-inner span {
        font-size: 15px;
    }
    .ab-fold-1 { transform: translateX(-90px) rotate(-12deg) translateY(10px); }
    .ab-fold-2 { transform: translateX(-30px) rotate(-4deg) translateY(-5px); }
    .ab-fold-3 { transform: translateX(30px) rotate(4deg) translateY(-5px); }
    .ab-fold-4 { transform: translateX(90px) rotate(12deg) translateY(10px); }
    .ab-fold-cards:hover .ab-fold-1 { transform: translateX(-150px) rotate(-6deg) translateY(-15px); }
    .ab-fold-cards:hover .ab-fold-2 { transform: translateX(-50px) rotate(-2deg) translateY(-25px); }
    .ab-fold-cards:hover .ab-fold-3 { transform: translateX(50px) rotate(2deg) translateY(-25px); }
    .ab-fold-cards:hover .ab-fold-4 { transform: translateX(150px) rotate(6deg) translateY(-15px); }
}

@media (max-width: 576px) {
    .ab-title-en { font-size: 20px; }
    .ab-title-cn { font-size: 22px; }
    .ab-text-paragraph { font-size: 14px; }
    .ab-fold-cards {
        height: 280px;
    }
    .ab-fold-card {
        width: 160px;
        height: 220px;
    }
    .ab-fold-inner i {
        font-size: 38px;
    }
    .ab-fold-inner span {
        font-size: 13px;
    }
    .ab-fold-1 { transform: translateX(-60px) rotate(-10deg) translateY(8px); }
    .ab-fold-2 { transform: translateX(-20px) rotate(-3deg) translateY(-4px); }
    .ab-fold-3 { transform: translateX(20px) rotate(3deg) translateY(-4px); }
    .ab-fold-4 { transform: translateX(60px) rotate(10deg) translateY(8px); }
    .ab-fold-cards:hover .ab-fold-1 { transform: translateX(-100px) rotate(-5deg) translateY(-10px); }
    .ab-fold-cards:hover .ab-fold-2 { transform: translateX(-35px) rotate(-1deg) translateY(-18px); }
    .ab-fold-cards:hover .ab-fold-3 { transform: translateX(35px) rotate(1deg) translateY(-18px); }
    .ab-fold-cards:hover .ab-fold-4 { transform: translateX(100px) rotate(5deg) translateY(-10px); }
}