/* ============================================ */
/* Hero轮播横幅样式 */
/* ============================================ */
.hero-banner {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 800px;
    max-height: 1080px;
    overflow: hidden;
    margin-top: 0;
    container-type: size;
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

/* 轮播幻灯片基础样式 */
.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* 关键修复：移除 opacity 过渡，改用 filter 实现淡入，避免祖先 opacity 禁用子元素 backdrop-filter */
    opacity: 1;
    visibility: hidden;
    filter: brightness(0.15);
    will-change: filter;
    /* 仅过渡 filter，visibility 立即切换避免跳变 */
    transition: filter 1.4s cubic-bezier(0.22, 1, 0.36, 1);
    z-index: 1;
}

.hero-slide.active {
    filter: brightness(1);
    visibility: visible;
    z-index: 3;
}

.hero-slide.exiting {
    filter: brightness(0.15);
    visibility: visible;
    z-index: 2;
}

/* 幻灯片背景 */
.hero-slide-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* 幻灯片整图跳转链接 - 铺满整张幻灯片覆盖在最上层 */
.hero-slide-link {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    cursor: pointer;
}

/* Ken Burns动画 - 图片缩放效果 */
@keyframes kenBurns {
    0% { transform: scale(1) translate(0, 0); }
    100% { transform: scale(1.08) translate(-2%, -1%); }
}

.hero-slide.active .hero-slide-bg {
    animation: kenBurns 12s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.hero-slide.exiting .hero-slide-bg {
    animation: kenBurnsExit 1.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes kenBurnsExit {
    0% { transform: scale(1.18) translate(-2%, -1%); opacity: 1; }
    100% { transform: scale(1.1) translate(0, 0); opacity: 0; }
}

/* 遮罩层 - 渐变叠加 */
.hero-slide::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 1;
}

/* 光效层 */
.hero-light-effect {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 2;
    pointer-events: none;
    overflow: hidden;
}

.hero-light-effect::before,
.hero-light-effect::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    animation: lightFloat 15s ease-in-out infinite;
}

.hero-light-effect::before {
    width: 500px; height: 500px;
    background: radial-gradient(circle, var(--color-primary) 0%, transparent 70%);
    top: -20%; right: -10%;
    animation-delay: -5s;
}

.hero-light-effect::after {
    width: 400px; height: 400px;
    background: radial-gradient(circle, #0d3d6e 0%, transparent 70%);
    bottom: -15%; left: -5%;
    animation-delay: -10s;
}

@keyframes lightFloat {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.12; }
    33% { transform: translate(30px, -20px) scale(1.1); opacity: 0.18; }
    66% { transform: translate(-20px, 15px) scale(0.95); opacity: 0.1; }
}

/* 粒子效果层 */
.hero-particles {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: 3;
    pointer-events: none;
    overflow: hidden;
}

.hero-particle {
    position: absolute;
    width: 3px; height: 3px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    animation: particleFloat 20s linear infinite;
}

/* 粒子位置和动画延迟 */
.hero-particle:nth-child(1) { left: 5%; animation-delay: 0s; animation-duration: 25s; }
.hero-particle:nth-child(2) { left: 15%; animation-delay: -5s; animation-duration: 22s; }
.hero-particle:nth-child(3) { left: 25%; animation-delay: -10s; animation-duration: 28s; }
.hero-particle:nth-child(4) { left: 35%; animation-delay: -3s; animation-duration: 20s; }
.hero-particle:nth-child(5) { left: 45%; animation-delay: -8s; animation-duration: 24s; }
.hero-particle:nth-child(6) { left: 55%; animation-delay: -12s; animation-duration: 26s; }
.hero-particle:nth-child(7) { left: 65%; animation-delay: -15s; animation-duration: 23s; }
.hero-particle:nth-child(8) { left: 75%; animation-delay: -7s; animation-duration: 27s; }
.hero-particle:nth-child(9) { left: 85%; animation-delay: -2s; animation-duration: 21s; }
.hero-particle:nth-child(10) { left: 95%; animation-delay: -18s; animation-duration: 29s; }
.hero-particle:nth-child(11) { left: 20%; animation-delay: -4s; animation-duration: 20s; }
.hero-particle:nth-child(12) { left: 70%; animation-delay: -11s; animation-duration: 24s; }

@keyframes particleFloat {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 0.6; transform: translateY(90vh) scale(1); }
    90% { opacity: 0.4; }
    100% { transform: translateY(-10vh) scale(0.5); opacity: 0; }
}

/* Hero内容区域 */
.hero-content {
    /* 宽度限制在1600px以内，配合translateX居中 */
    width: 100%;
    max-width: 1600px;
    height: 100%;
    display: flex;
    justify-content: space-around;
    position: absolute;
    top: 0; left: 50%;
    z-index: 10;
    padding: 0 8%;
    /* 合并 translateX 居中 + translateZ 创建独立GPU合成层 */
    transform: translateX(-50%) translateZ(0);
    will-change: transform;
}

.hero-content-inner {
    /* max-width: 750px; */
    display: flex;
    flex-direction: column;
    align-items: center;
    /* 黄金分割点定位：内容中心从垂直居中(50vh)上移至38.2vh（黄金分割点） */
    margin-top: 30cqh;
}

/* ============================================ */
/* Hero区域 - 文案入场动画（JS驱动重放） */
/* ============================================ */

/* 标签线 - 从左滑入淡入 */
.hero-tagline {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    opacity: 0;
    transform: translateX(-30px);
}

.hero-tagline.is-visible {
    animation: heroFadeInLeft 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.1s;
}

/* 主标题 - 从下滑入淡入 */
.hero-title {
    font-size: clamp(42px, 6vw, 96px);
    font-weight: 700;
    line-height: 1.15;
    color: var(--color-white);
    margin-bottom: 24px;
    letter-spacing: clamp(1px, 0.23vw, 8px);
    opacity: 0;
    transform: translateY(40px);
}

.hero-title.is-visible {
    animation: heroFadeInUp 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.3s;
}

/* 副标题 - 从下滑入淡入 */
.hero-subtitle {
    font-size: clamp(16px, 2vw, 20px);
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
    max-width: 580px;
    opacity: 0;
    transform: translateY(30px);
}

.hero-subtitle.is-visible {
    animation: heroFadeInUp 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.5s;
}

/* 按钮组 - 从下滑入淡入 */
.hero-buttons {
    display: flex;
    gap: 20px;
    opacity: 0;
    transform: translateY(30px);
}

.hero-buttons.is-visible {
    animation: heroFadeInUp 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
    animation-delay: 0.7s;
}

/* 按钮自身透明度由父级控制 */
.hero-buttons .btn-primary,
.hero-buttons .btn-secondary {
    opacity: 1;
}

/* 入场动画关键帧 */
@keyframes heroFadeInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes heroFadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* 标签线装饰 */
.hero-tagline-line {
    width: 40px; height: 2px;
    background: var(--color-accent);
}

.hero-tagline-text {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.8);
}

/* 标题高亮文字 - 渐变光泽动画 */
.hero-title-highlight {
    display: block;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
    background-size: 200% auto;
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(1px 1px 1px rgba(0, 0, 0, 0.8));
    text-shadow: none;
    animation: titleShine 5s ease-in-out infinite;
}

@keyframes titleShine {
    0%, 100% { background-position: 0% center; }
    50%      { background-position: 200% center; }
}

/* 分页指示器 */
.hero-pagination {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 16px;
    z-index: 20;
    padding: 16px 28px;
    background: rgba(8, 18, 38, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
}

.hero-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    position: relative;
}

.hero-dot::before {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 6px; height: 6px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    opacity: 0;
    transition: all 0.4s ease;
}

.hero-dot:hover { background: rgba(255, 255, 255, 0.6); }

.hero-dot.active {
    width: 36px;
    border-radius: 5px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
}

.hero-pagination-info {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    margin-left: 12px;
    padding-left: 16px;
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    font-weight: 400;
    letter-spacing: 1px;
}

/* 左右切换箭头 */
.hero-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 56px; height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(8, 18, 38, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    cursor: pointer;
    z-index: 20;
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    color: rgba(255, 255, 255, 0.8);
    font-size: 20px;
}

.hero-banner:hover .hero-arrow { opacity: 1; }

.hero-arrow:hover {
    background: rgba(26, 93, 156, 0.7);
    border-color: rgba(74, 158, 255, 0.4);
    transform: translateY(-50%) scale(1.1);
}

.hero-arrow-prev { left: 40px; }
.hero-arrow-next { right: 40px; }

@media (max-width: 1200px) {
    .hero-content-inner { max-width: 650px; }
}

@media (max-width: 992px) {
    .hero-banner { min-height: 750px; height: 80vh; }
    .hero-content-inner {max-width: 100%; text-align: center; display: flex; flex-direction: column; align-items: center; }
    .hero-tagline { justify-content: center; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-buttons { justify-content: center; }
    .hero-pagination { bottom: 30px; }
    .hero-arrow { display: none; }
}

@media (max-width: 768px) {
    .hero-banner { min-height: 600px; height: 70vh; }
    .hero-title { font-size: 36px; }
    .hero-subtitle { font-size: 15px; margin-bottom: 30px; }
    .hero-buttons { flex-direction: column; gap: 12px; width: 100%; max-width: 280px; }
    .btn-primary, .btn-secondary { width: 100%; justify-content: center; padding: 14px 24px; }
    .hero-pagination { padding: 12px 20px; gap: 12px; }
    .hero-pagination-info { display: none; }
    .hero-light-effect::before, .hero-light-effect::after { filter: blur(60px); }
}

@media (max-width: 480px) {
    .hero-banner { min-height: 500px; height: 65vh; }
    .hero-title { font-size: 28px; }
    .hero-tagline-text { font-size: 12px; letter-spacing: 2px; }
    .hero-content { padding: 0 5%; }
}



/* ============================================ */
/* 按钮样式 */
/* ============================================ */

/* 主按钮 */
.btn-primary {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 36px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--color-white);
    /* 红色强调色渐变，与标题蓝色渐变形成鲜明对比 */
    background: linear-gradient(135deg, var(--color-accent) 0%, #a61c1c 100%);
    border: 1px solid rgba(214, 40, 40, 0.5);
    border-radius: 4px;
    cursor: pointer;
    /* 明确指定过渡属性，排除 backdrop-filter */
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                box-shadow 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                border-color 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                background-color 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                color 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    text-decoration: none;
    overflow: hidden;
    /* 强制提升为独立GPU合成层，确保父容器动画期间 backdrop-filter 持续渲染 */
    will-change: backdrop-filter, transform, opacity;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

/* 按钮光效 */
.btn-primary::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 0.6s ease;
}

.btn-primary:hover {
    transform: translateZ(0) translateY(-3px);
    /* 红色强调色阴影，与按钮背景统一 */
    box-shadow: 0 12px 40px rgba(214, 40, 40, 0.5);
    border-color: rgba(232, 93, 93, 0.6);
}

.btn-primary:hover::before { left: 100%; }

.btn-primary .btn-icon {
    font-size: 14px;
    transition: transform 0.3s ease;
}

.btn-primary:hover .btn-icon { transform: translateX(4px); }

/* 次要按钮 */
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px 34px;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.95);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 4px;
    cursor: pointer;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    text-decoration: none;
    /* 明确指定过渡属性，排除 backdrop-filter，避免磨砂玻璃被过渡延迟显示 */
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                box-shadow 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                border-color 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                background-color 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                color 0.5s cubic-bezier(0.22, 1, 0.36, 1);
    /* 强制提升为独立GPU合成层，确保父容器动画期间 backdrop-filter 持续渲染 */
    will-change: backdrop-filter, transform, opacity;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateZ(0) translateY(-3px);
}

@media (max-width: 768px) {
    .banner-actions {
        flex-direction: column;
        gap: 12px;
        padding: 0 20px;
    }
    .btn-primary, .btn-secondary {
        width: 100%;
        padding: 14px 24px;
        text-align: center;
    }
    .banner-divider {
        width: 60px;
        margin-bottom: 20px;
    }
}

/* ============================================ */
/* 关于我们区域样式 */
/* ============================================ */
.about {
    background: linear-gradient(180deg, #f8f9fa 0%, var(--color-white) 50%, var(--color-white-light) 100%);
    padding: 120px 0;
    position: relative;
}

.about .container {
    max-width: 1600px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 60px;
    align-items: center;
    padding: 0 20px;
}
.about-content {
    padding: 0 30px;
}
.about-content::before {
    content: '';
    display: block;
    width: 60px; height: 3px;
    background: var(--color-accent);
    margin-bottom: 25px;
}
.about h2 {
    font-size: 36px;
    font-weight: 700;
    background: var(--color-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 30px;
    letter-spacing: 1px;
}
.about p {
    font-size: 17px;
    color: #4a5568;
    margin-bottom: 0.5em;
    line-height: 2.1;
    text-align: justify;
}
.about .btn-primary {
    margin-top: 15px;
}

.about-content-top {
    margin-bottom: 40px;
}
.about-content-top .about-desc {
    max-height: 11em;
    overflow-y: auto;
}

.about-content-bottom {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}
.about-content-bottom.visible {
    opacity: 1;
    transform: translateY(0);
}

.about-stats {
    display: flex;
    justify-content: space-around;
    align-items: center;
    gap: 15px;
    container-type: inline-size;
}

.about-stat-item {
    flex:1 1 25cqw;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 0;
}

.about-stat-num {
    font-size: 34px;
    font-weight: 900;
    color: #222;
    line-height: 1.2;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 6px;
}

.about-stat-unit {
    font-size: 16px;
    font-weight: 500;
    color: #555;
}

.about-stat-label {
    font-size: 13px;
    color: #666;
    margin-top: 6px;
    letter-spacing: 0.5px;
}

.about-stat-divider {
    flex: 0 0 2px;
    height: 60px;
    background: var(--color-accent);
    position: relative;
}
.about-stat-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 2px;
    height: 50%;
    background: var(--color-primary);
}

@media (max-width: 992px) {
    .about-stats {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px 0;
    }
    .about-stat-item {
        flex: 0 0 50cqw;
        padding: 0;
        margin-bottom: 20px;
    }
    .about-stat-divider {
        display: none;
    }
    .about-stat-num {
        font-size: 36px;
    }
}

@media (max-width: 480px) {
    .about-stat-item {
        flex: 0 0 50cqw;
    }
    .about-stat-num {
        font-size: 32px;
    }
}

/* ============================================ */
/* 视频播放区域样式 */
/* ============================================ */
.video-box {
    position: relative;
    width: 100%;
    height: 480px;
    cursor: pointer;
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
    border-radius: 14px;
    overflow: hidden;
}
.video-box::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to top, rgba(8, 18, 38, 0.4) 0%, transparent 30%, transparent 70%, rgba(8, 18, 38, 0.2) 100%);
    z-index: 2;
    pointer-events: none;
}
/* 镜头光晕效果 */
.video-box {
    transition: box-shadow 0.4s ease;
}
.video-box::after {
    content: '';
    position: absolute;
    inset: -25%;
    background:
        radial-gradient(ellipse 200px 200px at 22% 28%, rgba(255, 240, 220, 0.7) 0%, rgba(255, 180, 160, 0.35) 15%, rgba(255, 140, 120, 0.12) 35%, transparent 55%),
        radial-gradient(circle 160px at 22% 28%, transparent 30%, rgba(255, 80, 60, 0.18) 42%, rgba(255, 60, 40, 0.06) 52%, transparent 68%),
        radial-gradient(ellipse 500px 90px at 22% 28%, rgba(255, 210, 190, 0.08) 0%, rgba(255, 180, 160, 0.03) 40%, transparent 70%),
        radial-gradient(ellipse 350px 55px at 18% 35%, rgba(255, 230, 200, 0.05) 0%, transparent 55%),
        radial-gradient(circle 22px at 42% 52%, rgba(255, 200, 140, 0.4) 0%, rgba(255, 150, 80, 0.15) 50%, transparent 70%),
        radial-gradient(circle 75px at 58% 62%, rgba(200, 170, 80, 0.18) 0%, rgba(180, 140, 50, 0.08) 40%, transparent 65%),
        radial-gradient(circle 48px at 56% 61%, rgba(140, 190, 130, 0.15) 0%, rgba(100, 160, 110, 0.06) 45%, transparent 65%),
        radial-gradient(circle 32px at 54% 59%, rgba(120, 170, 210, 0.18) 0%, rgba(80, 140, 190, 0.06) 50%, transparent 70%),
        radial-gradient(circle 105px at 60% 64%, transparent 60%, rgba(80, 60, 140, 0.05) 72%, rgba(60, 40, 120, 0.03) 82%, transparent 95%);
    opacity: 0;
    pointer-events: none;
    z-index: 3;
    mix-blend-mode: screen;
    transition: opacity 0.5s ease, transform 0.5s ease;
    transform: scale(0.90);
}
.video-box:hover::after {
    opacity: 1;
    transform: scale(0.98);
}
.video-box:hover {
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.2), 0 0 80px rgba(255, 140, 100, 0.08), 0 0 120px rgba(255, 100, 80, 0.04);
}
.video-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.play-icon {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    /* background: radial-gradient(circle, rgba(255,255,255,0.6) 0%, rgba(255,255,255,0.2) 50%, transparent 70%), url('/skin/images/xcjlog.png') center center / cover no-repeat; */
    background: linear-gradient(135deg, rgba(214, 40, 40, 0.95) 0%, rgba(26,93,156,0.95) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 30px;
    box-shadow: 0 8px 30px rgba(214, 40, 40, 0.4);
    transition: all 0.4s cubic-bezier(0.22,1,0.36,1);
    z-index: 3;
}
.play-icon:hover {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 12px 40px rgba(214, 40, 40, 0.5);
}
.video-modal {
    display: flex;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, background 0.3s ease, visibility 0.3s ease;
}
.video-modal.show {
    opacity: 1;
    visibility: visible;
    background: rgba(0,0,0,0.85);
}
.video-container {
    position: relative;
    width: 80%;
    max-width: 1000px;
    transform: scale(0.8);
    transition: transform 0.3s ease;
}
.video-modal.show .video-container {
    transform: scale(1);
}
.video-player {
    width: 100%;
    height: auto;
    outline: none;
}
.close-btn {
    position: absolute;
    right: -50px;
    top: 0;
    width: 40px;
    height: 40px;
    background: var(--color-white);
    color: var(--color-primary);
    font-size: 20px;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}



/* ============================================ */
/* 集团新闻区域样式 */
/* ============================================ */
.news-section {
    padding: 80px 0 100px;
    background: var(--color-white);
    position: relative;
    overflow: hidden;
}

.news-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}
.news-particles::before,
.news-particles::after,
.news-particles span {
    content: "";
    position: absolute;
    width: 70px;
    height: 70px;
    background: rgba(26,93,156,0.05);
    border-radius: 50%;
    animation: newsFloat 11s infinite linear;
}
.news-particles::before { top:12%; left:11%; animation-duration: 3s; }
.news-particles::after { top:65%; left:82%; animation-duration: 4.5s; }
.news-particles span:nth-child(1) { top:28%; left:75%; animation-duration: 2.5s; }
.news-particles span:nth-child(2) { top:85%; left:18%; animation-duration: 5.5s; }
.news-particles span:nth-child(3) { top:55%; left:35%; animation-duration: 3.5s; }
.news-particles span:nth-child(4) { top:8%; left:55%; width:45px; height:45px; background:rgba(26,93,156,0.04); animation-duration: 4s; }
.news-particles span:nth-child(5) { top:40%; left:90%; width:100px; height:100px; background:rgba(26,93,156,0.03); animation-duration: 5s; }
.news-particles span:nth-child(6) { top:72%; left:48%; width:55px; height:55px; background:rgba(26,93,156,0.06); animation-duration: 3s; }
.news-particles span:nth-child(7) { top:20%; left:40%; width:35px; height:35px; background:rgba(26,93,156,0.04); animation-duration: 5.5s; }
.news-particles span:nth-child(8) { top:60%; left:65%; width:85px; height:85px; background:rgba(26,93,156,0.03); animation-duration: 3.5s; }
.news-particles span:nth-child(9) { top:48%; left:8%; width:50px; height:50px; background:rgba(26,93,156,0.05); animation-duration: 4.5s; }
.news-particles span:nth-child(10) { top:78%; left:60%; width:60px; height:60px; background:rgba(26,93,156,0.04); animation-duration: 4.2s; }
.news-particles span:nth-child(11) { top:35%; left:20%; width:40px; height:40px; background:rgba(26,93,156,0.05); animation-duration: 3.8s; }
.news-particles span:nth-child(12) { top:18%; left:85%; width:75px; height:75px; background:rgba(26,93,156,0.03); animation-duration: 5.2s; }
.news-particles span:nth-child(13) { top:90%; left:70%; width:35px; height:35px; background:rgba(26,93,156,0.06); animation-duration: 3.3s; }
.news-particles span:nth-child(14) { top:50%; left:50%; width:55px; height:55px; background:rgba(26,93,156,0.04); animation-duration: 4.8s; }
.news-particles span:nth-child(15) { top:25%; left:15%; width:45px; height:45px; background:rgba(26,93,156,0.05); animation-duration: 4s; }
@keyframes newsFloat {
    0%{transform:translate(0,0) scale(1);}
    50%{transform:translate(25px,-25px) scale(1.15);}
    100%{transform:translate(0,0) scale(1);}
}

.news-section .container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
}

.news-tabs-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--color-white);
    border-radius: 50px;
    padding: 6px;
    width: fit-content;
    margin: 0 auto 50px;
    box-shadow: 0 6px 20px rgba(26,93,156,0.08);
    z-index: 2;
}

.news-tab-slider {
    position: absolute;
    top: 6px;
    left: 6px;
    height: calc(100% - 12px);
    background: var(--color-primary);
    border-radius: 50px;
    transition: all 0.4s cubic-bezier(0.3,1,0.7,1);
    z-index: 1;
}

.news-tab-item {
    position: relative;
    padding: 12px 28px;
    text-align: center;
    font-size: 18px;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: 0.3s;
    z-index: 2;
    flex: 0 1 auto;
}

.news-tab-item.active {
    color: var(--color-white);
}

.news-content-wrapper {
    position: relative;
}

.news-content-group {
    display: none;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.news-content-group.active {
    display: grid;
    opacity: 1;
    grid-template-columns: 0.55fr 0.45fr;
    /* grid-template-columns: auto 1fr; */
    gap: 30px;
    min-height: 655px;
    animation: fadeIn 0.4s ease;
}

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

.news-images {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 20px;
    max-height: 758px;
}

.news-image-item {
    position: relative;
    overflow: hidden;
    border-radius: 14px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.news-image-item:hover {
    transform: translateY(-4px);
}

.news-image-item:first-child {
    grid-row: span 2;
}

.news-image-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.news-image-item:hover img {
    transform: scale(1.05);
}

.news-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 40px 16px 16px;
    background: linear-gradient(transparent, rgba(0,0,0,0.75));
    color: var(--color-white);
}

.news-image-overlay h4 {
    font-size: 16px;
    font-weight: 500;
    line-height: 1.5;
    margin-bottom: 4px;
}

.news-image-overlay span {
    font-size: 12px;
    color: rgba(255,255,255,0.7);
}

.news-list {
    display: flex;
    flex-direction: column;
}

.news-list-item {
    display: flex;
    column-gap: 16px;
    padding: 18px 0;
    border-bottom: 1px solid #f0f0f0;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 112px;
}

.news-list-item>div{
    flex-shrink: 1;
    min-width: 0;
}

.news-list-item:hover {
    transform: translateX(4px);
}

.news-list-item:last-child {
    border-bottom: none;
}

.news-list-date {
    flex-shrink: 0;
    text-align: center;
    padding-right: 16px;
    border-right: 2px solid var(--color-accent);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-list-date .day {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.news-list-date .ym {
    display: block;
    font-size: 13px;
    color: var(--color-text-light);
    margin-top: 4px;
    letter-spacing: 0.5px;
}

.news-list-content {
    flex: 1;
    container-type: inline-size;
}

.news-list-content>*{
    overflow: hidden;         /* 超出隐藏 */
    text-overflow: ellipsis;  /* ... */
}

.news-list-content h4 {
    font-size: 18px;
    font-weight: 500;
    max-width: 100cqw;
    white-space: nowrap;      /* 不换行 */
    color: var(--color-text-primary);
    margin-bottom: 6px;
    line-height: 1.5;
    transition: color 0.3s ease;
}

.news-list-item:hover .news-list-content h4 {
    color: var(--color-primary);
}

.news-list-content p {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
    display: block;
    min-height: 1.6em;
    /* 关键三行 */
    display: -webkit-box;
    -webkit-line-clamp: 2; /* 限制2行 */
    line-clamp: 2; /* 标准属性，用于兼容性 */
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}


.news-list-tag {
    display: inline-block;
    padding: 2px 10px;
    font-size: 12px;
    color: var(--color-primary);
    background: rgba(26, 93, 156, 0.08);
    border-radius: 2px;
    margin-bottom: 6px;
}

@media (max-width: 1024px) {
    .news-content-group.active {
        grid-template-columns: 1fr;
    }
    
    .news-images {
        grid-template-rows: 200px 200px;
    }
}

@media (max-width: 768px) {
    .news-section {
        padding: 60px 0 80px;
    }
    
    .news-tab-item {
        /* min-width: 100px; */
        padding: 10px 18px;
        font-size: 14px;
    }
    
    .news-images {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(3, 180px);
    }
    
    .news-image-item:first-child {
        grid-row: span 1;
    }
    
    .news-list-item {
        padding: 14px 0;
    }
    
    
    .news-list-date .day {
        font-size: 26px;
    }
}

@media (max-width: 480px) {
    .news-tab-item {
        padding: 8px 14px;
        font-size: 13px;
    }
}

@media (max-width: 768px) {
    .about .container { grid-template-columns: 1fr; }
}

/* ============================================ */
/* Hero 固定首屏：企业精神口号（大字宣言式） */
/* ============================================ */
.spirit-slide-bg {
    background-image: url('/uploads/allimg/20260722/1-260H21412464H.jpg');
    background-size: 100% 100%;
    background-position: center;
    background-repeat: no-repeat;
}

/* 匾额式金边 + 四角回纹（中性暗底，去掉红蓝径向，提升文字可读性） */
.spirit-content {
    width: 100%;
    max-width: 1430px;
    margin: 0 auto;
    padding: 58px 44px 54px;
    position: relative;
    border: 1px solid rgba(245, 200, 80, 0.55);
    border-radius: 3px;
    background-color: rgba(8, 18, 38, 0.62);
    background-image:
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='34' height='34'%3E%3Cpath d='M2 14 V2 H14' fill='none' stroke='%23f5c850' stroke-width='2.5'/%3E%3C/svg%3E"),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='34' height='34'%3E%3Cpath d='M32 14 V2 H20' fill='none' stroke='%23f5c850' stroke-width='2.5'/%3E%3C/svg%3E"),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='34' height='34'%3E%3Cpath d='M2 20 V32 H14' fill='none' stroke='%23f5c850' stroke-width='2.5'/%3E%3C/svg%3E"),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='34' height='34'%3E%3Cpath d='M32 20 V32 H20' fill='none' stroke='%23f5c850' stroke-width='2.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat, no-repeat, no-repeat, no-repeat;
    background-position: top left, top right, bottom left, bottom right;
    background-size: 34px 34px, 34px 34px, 34px 34px, 34px 34px;
    box-shadow: 0 22px 60px rgba(8, 18, 38, 0.45);
}

.spirit-content::before {
    content: '';
    position: absolute;
    inset: 7px;
    border: 1px solid rgba(245, 200, 80, 0.32);
    border-radius: 2px;
    pointer-events: none;
}

.spirit-content .hero-tagline {
    justify-content: center;
}

.spirit-content .hero-tagline-line {
    background: var(--color-gold);
}

.spirit-content .hero-title {
    font-size: clamp(44px, 6.5vw, 82px);
    margin-bottom: 50px;
}

.spirit-content .hero-title-highlight {
    display: inline;
    margin-left: 0.35em;
    background: linear-gradient(135deg, #ffe9a8 0%, var(--color-gold) 50%, #ffe9a8 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
}

/* 黄金三栏：左栏 | 中轴 | 右栏（上下两块），对称分割 + 中轴竖轴分隔 */
.spirit-cols {
    display: flex;
    align-items: stretch;
    position: relative;
    text-align: center;
}

/* 左栏：老书记思想（与右栏等权） */
.spirit-col--left {
    flex: 1 1 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 10px 40px;
}

/* 右栏：长江人精神（上）+ 长江人品德（下），与左栏等权 */
.spirit-col--right {
    flex: 1 1 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 10px 40px;
}

.spirit-block {
    display: flex;
    flex-direction: column;
    justify-content: center;
}
/* 右栏两块之间的细分隔线 */
.spirit-block + .spirit-block {
    padding-top: 30px;
    border-top: 1px solid rgba(245, 200, 80, 0.35);
}

/* 中轴：竖排「精神理念」+ 两侧金线（固定宽度） */
.spirit-axis {
    flex: 0 0 110px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.spirit-axis::before,
.spirit-axis::after {
    content: '';
    position: absolute;
    top: 8%;
    bottom: 8%;
    width: 1px;
    background: linear-gradient(to bottom, transparent, var(--color-gold), transparent);
}
.spirit-axis::before { left: 6px; }
.spirit-axis::after { right: 6px; }
.spirit-axis-text {
    writing-mode: vertical-rl;
    text-orientation: upright;
    font-size: 34px;
    font-weight: 700;
    letter-spacing: 12px;
    background: linear-gradient(180deg, #ffe9a8 0%, var(--color-gold) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: var(--color-gold);
}

/* 组名：红/蓝/金纯色文字 + 同色下划线（无背景，不抢眼） */
.spirit-col-title {
    display: inline-block;
    font-size: 30px;
    font-weight: 700;
    letter-spacing: 4px;
    margin-bottom: 30px;
    padding-bottom: 16px;
    position: relative;
}

/* 底部下划线（层级配色） */
.spirit-col-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    border-radius: 2px;
}

/* 左栏老书记思想 → 红；右栏长江人精神 → 蓝；右栏长江人品德 → 金 */
.spirit-col--left .spirit-col-title { color: #e23b3b; }
.spirit-col--left .spirit-col-title::after { background: #e23b3b; }
.spirit-col--right .spirit-block:first-child .spirit-col-title { color: var(--color-primary-light); }
.spirit-col--right .spirit-block:first-child .spirit-col-title::after { background: var(--color-primary-light); }
.spirit-col--right .spirit-block:last-child .spirit-col-title { color: #d4a017; }
.spirit-col--right .spirit-block:last-child .spirit-col-title::after { background: #d4a017; }

.spirit-col-list {
    list-style: none;
}

.spirit-col-list li {
    font-size: 19px;
    font-weight: 500;
    line-height: 2.35;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.92);
}

@media (max-width: 992px) {
    .spirit-content {
        padding: 40px 22px 36px;
    }
    .spirit-content .hero-title { margin-bottom: 36px; }
    .spirit-cols {
        flex-direction: column;
        gap: 36px;
    }
    .spirit-col--left,
    .spirit-col--right { flex: 1 1 auto; padding: 0 12px; }
    .spirit-axis { display: none; }
    .spirit-block + .spirit-block { padding-top: 22px; }
}

/* ============================================ */
/* 企业精神口号区域 - 点阵典雅款 */
/* ============================================ */
.spirit-banner {
    width: 100%;
    padding: 49px 0;
    background: #f3f6fd;
    background-image: url("../images/dian-bg.png");
    background-size: 10px auto;
    background-repeat: repeat;
    /* background-image: url("../images/cjdq-bg.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed; */
    position: relative;
    overflow: hidden;
}

.sb-top-divider,
.sb-bottom-divider {
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background-color: #eee;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    z-index: 1;
}

.sb-top-divider {
    top: 0;
}

.sb-bottom-divider {
    bottom: 0;
}

.spirit-banner .container {
    position: relative;
    z-index: 2;
    container-type: inline-size;
}

.spirit-banner-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: clamp(12px, 2vw, 24px);
}

.sb-tip {
    color: #666;
    font-size: clamp(12px, 1.4vw, 18px);
    letter-spacing: clamp(2px, 0.3vw, 4px);
    font-weight: 400;
    position: relative;
    padding: 0 clamp(15px, 2vw, 30px);
    opacity: 0;
    transform: translateY(20px);
}

.sb-tip::before,
.sb-tip::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 0;
    height: 1px;
    background: #999;
    transition: width .6s ease-out;
}

.sb-tip::before { left: 0; }
.sb-tip::after { right: 0; }

.sb-main {
    font-weight: 700;
    color: var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(8px, 1vw, 20px);
    letter-spacing: clamp(1px, 0.4vw, 8px);
}

.sb-main-text {
    font-size: clamp(22px, 5cqi, 58px);
    display: block;
    font-weight: 700;
    opacity: 0;
    transform: translateY(30px);
}

.sb-main-text:first-child { transform: translateX(-30px); }
.sb-main-text:last-child { transform: translateX(30px); }

.sb-dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    background-color: var(--color-accent);
    border-radius: 50%;
    opacity: 0;
    transform: scale(0);
    will-change: box-shadow, opacity;
}

.sb-underline {
    width: 0;
    height: 3px;
    background: var(--color-accent);
    border-radius: 2px;
}

.spirit-banner.revealed .sb-tip {
    opacity: 1;
    transform: translateY(0);
    transition: opacity .6s ease-out .2s, transform .6s ease-out .2s;
}

.spirit-banner.revealed .sb-tip::before,
.spirit-banner.revealed .sb-tip::after {
    width: 20px;
    transition-delay: .8s;
}

.spirit-banner.revealed .sb-main-text:first-child {
    opacity: 1;
    transform: translateX(0);
    transition: opacity .6s ease-out .4s, transform .6s ease-out .4s;
}

.spirit-banner.revealed .sb-main-text:last-child {
    opacity: 1;
    transform: translateX(0);
    transition: opacity .6s ease-out .4s, transform .6s ease-out .4s;
}

.spirit-banner.revealed .sb-dot {
    opacity: 1;
    transform: scale(1);
    transition: opacity .5s ease-out .7s, transform .5s ease-out .7s;
    animation: sbDotPulse 2.4s ease-in-out 1s infinite;
}

@keyframes sbDotPulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--color-accent); }
    50% { box-shadow: 0 0 0 10px transparent; }
}

.spirit-banner.revealed .sb-underline {
    width: 80px;
    transition: width .5s ease-out .9s;
}

.sb-top-divider,
.sb-bottom-divider {
    width: 0;
    transition: width .8s ease-out;
}

.spirit-banner.revealed .sb-top-divider,
.spirit-banner.revealed .sb-bottom-divider {
    width: 100%;
    transition-delay: .1s;
}

/* 响应式 */
@media (max-width: 768px) {
    .spirit-banner {
        padding: 35px 0;
    }
    .sb-main {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .spirit-banner {
        padding: 28px 0;
    }
    .sb-tip::before,
    .sb-tip::after {
        display: none;
    }
}