/* ============================================================
   山东省化学储能与新型电池技术重点实验室 - 全局样式 v2
   主色调: #1546B8  #02238a
   设计系统: Premium Lab / High-End Scientific
   ============================================================ */

/* ----- 基础重置 ----- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色系 - 降低饱和度, 提升高端感 */
    --primary: #1546B8;
    --primary-dark: #021e6e;
    --primary-deeper: #00417f;
    --primary-glow: rgba(21, 70, 184, 0.18);
    --accent: #d4950c;

    /* 中性色系 - Zinc/Slate 基底的精密灰阶 */
    --white: #ffffff;
    --zinc-50: #fafafa;
    --zinc-100: #f4f4f5;
    --zinc-200: #e4e4e7;
    --zinc-300: #d4d4d8;
    --zinc-400: #a1a1aa;
    --zinc-500: #71717a;
    --zinc-600: #52525b;
    --zinc-700: #3f3f46;
    --zinc-800: #27272a;
    --zinc-900: #18181b;
    --zinc-950: #09090b;

    /* 兼容别名 */
    --gray-50: var(--zinc-50);
    --gray-100: var(--zinc-100);
    --gray-200: var(--zinc-200);
    --gray-300: var(--zinc-300);
    --gray-400: var(--zinc-400);
    --gray-600: var(--zinc-600);
    --gray-800: var(--zinc-800);
    --gray-900: var(--zinc-900);

    /* 阴影系统 - 带色调的扩散阴影 */
    --shadow-xs: 0 1px 2px rgba(2, 30, 110, 0.04);
    --shadow-sm: 0 1px 3px rgba(2, 30, 110, 0.06), 0 1px 2px rgba(2, 30, 110, 0.04);
    --shadow-md: 0 4px 6px rgba(2, 30, 110, 0.05), 0 2px 16px rgba(2, 30, 110, 0.06);
    --shadow-lg: 0 10px 25px rgba(2, 30, 110, 0.07), 0 4px 40px rgba(2, 30, 110, 0.05);
    --shadow-xl: 0 20px 50px rgba(2, 30, 110, 0.1), 0 8px 60px rgba(2, 30, 110, 0.06);
    --shadow-glow: 0 0 0 1px rgba(21, 70, 184, 0.1), 0 4px 20px rgba(21, 70, 184, 0.12);

    /* 圆角 */
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 2.5rem;

    /* 动画曲线 - Spring Physics 模拟 */
    --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --transition: 0.4s var(--ease-spring);
    --transition-fast: 0.2s var(--ease-out-expo);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--zinc-700);
    background: var(--zinc-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

/* 全局纹理覆盖层 - 固定, 不可交互, 不消耗 GPU */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

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

ul, ol { list-style: none; }

img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ----- 通用标题 ----- */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-deeper);
    letter-spacing: 1px;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.section-subtitle {
    font-size: 13px;
    color: var(--zinc-400);
    text-transform: uppercase;
    letter-spacing: 4px;
    margin-bottom: 20px;
    font-weight: 500;
}

.section-divider {
    width: 56px;
    height: 3px;
    background: #00417f;
    margin: 0 auto;
    border-radius: 3px;
    position: relative;
}

.section-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: #00417f;
    border-radius: 50%;
    box-shadow: 0 0 0 6px var(--primary-glow);
    animation: dividerPulse 2.5s ease-in-out infinite;
}

@keyframes dividerPulse {
    0%, 100% { box-shadow: 0 0 0 4px var(--primary-glow); }
    50% { box-shadow: 0 0 0 10px rgba(21, 70, 184, 0.06); }
}

/* ============================================================
   栏目导航 - Header
   ============================================================ */
.header-main {
    background: #00417f;
    padding: 12px 0;
    position: relative;
    overflow: hidden;
}

.logo-area {
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1;
}

.logo-icon {
    flex-shrink: 0;
    width: auto;
    height: 65px;
}

.logo-icon img {
    width: auto;
    height: 60px !important;
    object-fit: contain;
}

/* 顶部栏 - logo + 站内搜索 */
.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-search {
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}

.site-search-form {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.28);
    border-radius: 30px;
    padding: 4px 5px 4px 16px;
    transition: var(--transition);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.site-search-form:focus-within {
    background: #fff;
    border-color: var(--primary);
    box-shadow: 0 6px 20px rgba(0,0,0,0.18);
}

.site-search-input {
    width: 210px;
    border: none;
    outline: none;
    background: transparent;
    font-size: 14px;
    color: #fff;
    letter-spacing: 0.5px;
}

.site-search-form:focus-within .site-search-input {
    color: var(--zinc-700);
}

.site-search-input::placeholder {
    color: rgba(255,255,255,0.78);
}

.site-search-form:focus-within .site-search-input::placeholder {
    color: var(--zinc-400);
}

.site-search-btn {
    width: 34px;
    height: 34px;
    border: none;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.site-search-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

/* 导航栏 */
.navbar {
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 1px 0 rgba(255,255,255,0.6) inset, 0 -1px 0 rgba(0,0,0,0.04), var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.04);
}

.nav-list {
    display: flex;
    justify-content: space-between;
    width: 100%;
}

.nav-item a {
    display: block;
    padding: 16px 22px;
    font-size: 18px;
    font-weight: 500;
    color: #00417f;
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
    letter-spacing: 1px;
}


.nav-item a:hover {
    color: var(--primary);
}

.nav-item a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 3px;
    background: var(--primary);
    border-radius: 3px 3px 0 0;
    transition: transform 0.3s var(--ease-spring);
}

.nav-item a:hover::before,
.nav-item.active a::before {
    transform: translateX(-50%) scaleX(1);
}

/* ============================================================
   轮播大图 (Swiper) - Cinematic Banner
   ============================================================ */
.banner-section {
    position: relative;
}

.banner-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(to top, var(--zinc-50), transparent);
    z-index: 2;
    pointer-events: none;
}

/* Banner 上的面包屑覆盖层 */
.banner-breadcrumb {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 3;
    padding: 28px 0;
    background: linear-gradient(to top, rgba(2, 18, 82, 0.7) 0%, rgba(2, 18, 82, 0.35) 60%, transparent 100%);
}

.breadcrumb-page-title {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 2px;
    margin-bottom: 6px;
}

.banner-breadcrumb .breadcrumb {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
}

.banner-breadcrumb .breadcrumb a {
    color: rgba(255, 255, 255, 0.9);
    transition: color 0.2s;
}

.banner-breadcrumb .breadcrumb a:hover {
    color: #fff;
    text-decoration: underline;
}

.banner-breadcrumb .breadcrumb span {
    color: rgba(255, 255, 255, 0.55);
}

.bannerSwiper {
    width: 100%;
    height: 100%;
}

.bannerSwiper .swiper-slide img {
    width: 100%;
    height: 100% !important;
    object-fit: cover;
    filter: brightness(0.85) saturate(0.9);
}

/* Banner 导航按钮 - Liquid Glass */
.bannerSwiper .banner-nav {
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-radius: 50%;
    color: #fff;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.2);
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
.bannerSwiper .banner-nav::after {
    font-size: 18px;
    font-weight: bold;
}
.bannerSwiper .banner-nav:hover {
    background: rgba(21, 70, 184, 0.7);
    border-color: rgba(255,255,255,0.4);
    transform: scale(1.05);
}
.bannerSwiper .banner-nav:active {
    transform: scale(0.95);
}
.bannerSwiper .swiper-button-prev { left: 36px; }
.bannerSwiper .swiper-button-next { right: 36px; }

/* Banner 分页器 - 电池电量风格 */
.bannerSwiper .banner-pag.swiper-pagination-bullets {
    bottom: 28px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}
.bannerSwiper .banner-pag .battery-bullet {
    width: 28px;
    height: 28px;
    border-radius: 0;
    background: transparent;
    opacity: 1;
    transition: all 0.4s var(--ease-spring);
    color: rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
}
.bannerSwiper .banner-pag .battery-bullet svg {
    width: 100%;
    height: 100%;
    display: block;
}
/* 激活态：电池图标亮起 + 蓝色发光 */
.bannerSwiper .banner-pag .battery-bullet.swiper-pagination-bullet-active {
    color: #4da6ff;
    filter: drop-shadow(0 0 10px rgba(77, 166, 255, 0.6));
}
/* hover 态 */
.bannerSwiper .banner-pag .battery-bullet:hover {
    color: rgba(255, 255, 255, 0.7);
    transform: scale(1.15);
}

/* ============================================================
   科研动态 - Asymmetric Premium Layout
   ============================================================ */
.intro-section {
    padding: 60px 0;
    background: var(--white);
    position: relative;
}

/* 背景微光 */
.intro-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(21, 70, 184, 0.025) 0%, transparent 70%);
    pointer-events: none;
}

.intro-grid {
    display: grid;
    grid-template-columns: 6fr 4fr;
    gap: 10px;
    align-items: start;
    position: relative;
    z-index: 1;
}

/* 左侧 Swiper - Premium Frame */
.intro-slider-wrapper {
    position: relative;
    min-width: 0;
}

.introSwiper {
    width: 100%;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0,0,0,0.04);
    background: var(--white);
}

.introSwiper .swiper-slide {
    display: flex;
    flex-direction: column;
}

.introSwiper .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 新闻卡片 - 图片 + 标题 + 时间 */
.intro-news-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.intro-news-img {
    height: 0px;
    padding-bottom: 56.25%;
    overflow: hidden;
    flex-shrink: 0;
}

.intro-news-img img {
    transition: transform 0.6s var(--ease-spring);
}

.intro-news-card:hover .intro-news-img img {
    transform: scale(1.05);
}

.intro-news-info {
    flex: 1;
    padding: 18px 22px 20px;
    background: var(--white);
    border-top: 3px solid var(--primary);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.intro-news-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--zinc-800);
    line-height: 1.5;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    line-clamp: 1;
    -webkit-box-orient: vertical;
    transition: color var(--transition);
}

.intro-news-card:hover .intro-news-info h4 {
    color: var(--primary);
}

.intro-news-date {
    margin-top: 8px;
    font-size: 12.5px;
    color: var(--zinc-400);
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
}

.intro-news-date::before {
    content: '';
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--primary);
    opacity: 0.6;
    margin-right: 8px;
}

/* 简介轮播导航 - Liquid Glass */
.introSwiper .intro-nav {
    width: 40px;
    height: 40px;
    background: rgba(0,0,0,0.35);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50%;
    color: #fff;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.15);
}
.introSwiper .intro-nav::after {
    font-size: 14px;
    font-weight: bold;
}
.introSwiper .intro-nav:hover {
    background: rgba(21, 70, 184, 0.8);
    border-color: rgba(255,255,255,0.3);
    transform: scale(1.08);
}
.introSwiper .intro-nav:active {
    transform: scale(0.93);
}
.introSwiper .swiper-button-prev { left: 14px; }
.introSwiper .swiper-button-next { right: 14px; }

/* 简介轮播分页器 */
.introSwiper .intro-pag.swiper-pagination-bullets {
    bottom: 14px;
}
.introSwiper .intro-pag .swiper-pagination-bullet {
    width: 7px;
    height: 7px;
    background: rgba(255,255,255,0.55);
    opacity: 1;
    transition: var(--transition);
    backdrop-filter: blur(2px);
}
.introSwiper .intro-pag .swiper-pagination-bullet-active {
    background: #fff;
    width: 20px;
    border-radius: 4px;
}

/* 简介描述 - Elevated Card */
.intro-description {
    margin-top: 24px;
    padding: 22px 28px;
    background: var(--white);
    border-left: 3px solid var(--primary);
    border-radius: 0 var(--radius) var(--radius) 0;
    box-shadow: var(--shadow-xs);
    position: relative;
    transition: var(--transition);
}

.intro-description::before {
    content: '';
    position: absolute;
    left: -3px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: #00417f;
    border-radius: 0;
    opacity: 0;
    transition: opacity 0.4s var(--ease-spring);
}

.intro-description:hover::before {
    opacity: 1;
}

.intro-description p {
    font-size: 15px;
    color: var(--zinc-600);
    line-height: 1.95;
    text-indent: 2em;
}

/* 右侧新闻面板 - Liquid Glass Card */
.news-panel {
    background: var(--white);
    border: 1px solid var(--zinc-200);
    /* border-radius: var(--radius-lg); */
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.news-panel:hover {
    box-shadow: var(--shadow-md);
}

.news-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    background: #00417f;
    position: relative;
    overflow: hidden;
}

.news-header::after {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.news-header h3 {
    font-size: 19px;
    color: var(--white);
    letter-spacing: 1.5px;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.news-more {
    font-size: 12px;
    color: rgba(255,255,255,0.8);
    transition: var(--transition);
    position: relative;
    z-index: 1;
    padding: 4px 10px;
    border-radius: 20px;
}

.news-more:hover {
    color: var(--white);
    background: rgba(255,255,255,0.1);
}

.news-list { padding: 4px 0; }

.news-item {
    display: flex;
    align-items: center;
    padding: 9.18px 24px;
    border-bottom: 1px solid var(--zinc-100);
    transition: var(--transition);
    cursor: pointer;
}

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

.news-item:hover {
    background: linear-gradient(90deg, rgba(21, 70, 184, 0.04), transparent);
}

.news-item:hover a {
    color: var(--primary);
    transform: translateX(3px);
}

/* 日期徽章样式 - 创意日期显示 */
.news-date-badge {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 52px;
    min-width: 52px;
    margin-right: 16px;
    padding: 6px 0;
    background: linear-gradient(135deg, #f0f4ff 0%, #e8efff 100%);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(21, 70, 184, 0.1);
    transition: all 0.3s var(--ease-spring);
    position: relative;
}

.news-date-badge::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    opacity: 0.3;
}

.news-date-badge .date-day {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.news-date-badge .date-mon {
    font-size: 10px;
    color: var(--zinc-400);
    letter-spacing: 0.5px;
    line-height: 1;
    margin-top: 4px;
    white-space: nowrap;
}

.news-item:hover .news-date-badge {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(21, 70, 184, 0.2);
}

.news-item:hover .news-date-badge .date-day,
.news-item:hover .news-date-badge .date-mon {
    color: #fff;
}

.news-item:hover .news-date-badge::after {
    background: rgba(255,255,255,0.4);
    opacity: 1;
}

.news-item a {
    font-size: 16px;
    color: var(--zinc-700);
    transition: var(--transition);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
    flex: 1;
}

/* ============================================================
   科研团队 (Swiper) - Bento-style Cards
   ============================================================ */
.team-section {
    padding: 60px 0;
    background: var(--zinc-50);
    position: relative;
}

.team-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse 600px 400px at 10% 20%, rgba(21, 70, 184, 0.03) 0%, transparent 70%),
        radial-gradient(ellipse 500px 350px at 85% 70%, rgba(21, 70, 184, 0.02) 0%, transparent 70%);
    pointer-events: none;
}

.team-carousel-wrapper {
    position: relative;
}

.teamSwiper {
    overflow: hidden;
    border-radius: var(--radius-lg);
    padding: 12px 0;
}

.team-card {
    display: block;
    color: inherit;
    background: var(--white);
    /* border-radius: var(--radius-xl); */
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--zinc-200);
    transition: var(--transition);
    height: 100%;
    position: relative;
}

.team-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    opacity: 0;
    transition: opacity 0.4s var(--ease-spring);
    box-shadow: 0 0 0 1px rgba(21, 70, 184, 0.12) inset;
    pointer-events: none;
}

.team-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(21, 70, 184, 0.2);
}

.team-card:hover::after {
    opacity: 1;
}

.team-avatar {
    width: 100%;
    height: 0px;
    padding-bottom: 56.25%;
    overflow: hidden;
    position: relative;
}

.team-avatar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to top, rgba(0,0,0,0.25), transparent);
    pointer-events: none;
}

.team-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-spring);
}

.team-card:hover .team-avatar img {
    transform: scale(1.06);
}

.team-info {
    padding: 22px 20px 24px;
    text-align: center;
    position: relative;
}

.team-info h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-deeper);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.team-role {
    font-size: 12.5px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.team-desc {
    font-size: 13.5px;
    color: var(--zinc-500);
    line-height: 1.7;
}

/* ============================================================
   科研成果 (Swiper) - Editorial Cards
   ============================================================ */
.achievement-section {
    padding: 60px 0;
    background: var(--white);
    position: relative;
}

.achievement-section::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60%;
    background: radial-gradient(ellipse at 50% 100%, rgba(21, 70, 184, 0.02) 0%, transparent 70%);
    pointer-events: none;
}

.achievement-carousel-wrapper {
    position: relative;
}

.achievementSwiper {
    overflow: hidden;
    border-radius: var(--radius-lg);
    padding: 12px 0;
    margin-bottom: 30px;
}

.achievement-card {
    display: block;
    color: inherit;
    background: var(--white);
    /* border-radius: var(--radius-lg); */
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--zinc-200);
    transition: var(--transition);
    height: 100%;
}

.achievement-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(21, 70, 184, 0.25);
}

.achievement-img {
    position: relative;
    width: 100%;
    height: 0px;
    padding-bottom: 56.25%;
    overflow: hidden;
}

.achievement-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-spring);
}

.achievement-card:hover .achievement-img img {
    transform: scale(1.06);
}

.achievement-tag {
    position: absolute;
    top: 14px;
    right: 14px;
    background: rgba(51 90 203 / 85%);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #fff;
    font-size: 11px;
    padding: 5px 14px;
    border-radius: 20px;
    letter-spacing: 0.8px;
    font-weight: 500;
    border: 1px solid rgba(255,255,255,0.15);
}

.achievement-info {
    padding: 22px;
}

.achievement-info h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary-deeper);
    margin-bottom: 10px;
    line-height: 1.4;
    letter-spacing: 0.3px;
}

.achievement-info p {
    font-size: 13.5px;
    color: var(--zinc-500);
    line-height: 1.75;
}

/* ============================================================
   仪器设备（首页）- 图片卡片网格
   ============================================================ */
.equipment-section {
    padding: 60px 0;
    background: var(--zinc-50);
    position: relative;
}

.equipment-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 30% 50%, rgba(21, 70, 184, 0.03) 0%, transparent 60%);
    pointer-events: none;
}

.equipment-grid-home {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 36px;
}

.equipment-card-home {
    /* border-radius: var(--radius-lg); */
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    background: var(--white);
    display: block;
}

.equipment-card-home:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.equipment-card-img {
    width: 100%;
    height: 0px;
    padding-bottom: 56.25%;
    overflow: hidden;
}

.equipment-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-spring);
}

.equipment-card-home:hover .equipment-card-img img {
    transform: scale(1.08);
}

/* 设备卡片底部文字始终可见 */
.equipment-card-caption {
    padding: 14px 16px;
    background: var(--white);
    text-align: center;
}

.equipment-card-caption h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--primary-deeper);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}

.equipment-card-caption p {
    font-size: 12.5px;
    color: var(--zinc-400);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-clamp: 2;
}

.equipment-more {
    text-align: center;
}

.btn-outline {
    display: inline-block;
    padding: 12px 32px;
    border: 2px solid var(--primary);
    color: var(--primary);
    border-radius: var(--radius);
    font-size: 14.5px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s var(--ease-out-expo);
    background: transparent;
}

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

/* ============================================================
   板块背景装饰图片（首页）
   ============================================================ */
.section-bg-img {
    position: absolute;
    pointer-events: none;
    z-index: 0;
    opacity: 0.5;
    transition: opacity 0.6s ease;
}

.section-bg-intro {
    bottom: 30px;
    right: 20px;
    width: 300px;
    height: auto;
}

.section-bg-team {
    top: 40px;
    right: 30px;
    width: 260px;
    height: auto;
    opacity: 0.3;
}

.section-bg-achievement {
    bottom: 40px;
    left: 20px;
    width: 380px;
    height: auto;
    opacity: 0.3;
}

/* .intro-section:hover .section-bg-intro,
.team-section:hover .section-bg-team,
.achievement-section:hover .section-bg-achievement {
    opacity: 0.18;
} */

/* ============================================================
   快速入口 - Bento Grid
   ============================================================ */
.quicklinks-section {
    padding: 60px 0;
    background: var(--zinc-50);
    position: relative;
}

.quicklinks-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.quicklink-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 32px 18px 28px;
    background: var(--white);
    border: 1px solid var(--zinc-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.quicklink-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, rgba(21, 70, 184, 0.03) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.quicklink-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(21, 70, 184, 0.25);
}

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

.ql-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, rgba(21, 70, 184, 0.08) 0%, rgba(21, 70, 184, 0.03) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    color: var(--primary);
    transition: var(--transition);
}

.quicklink-card:hover .ql-icon {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(21, 70, 184, 0.25);
}

.quicklink-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-deeper);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.quicklink-card p {
    font-size: 12.5px;
    color: var(--zinc-400);
    line-height: 1.6;
}

/* "查看更多" 按钮 */
.section-more {
    text-align: center;
    margin-top: 36px;
}

.btn-more {
    display: inline-block;
    padding: 10px 32px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    border: 1.5px solid var(--primary);
    border-radius: 30px;
    transition: var(--transition);
    letter-spacing: 0.5px;
}

.btn-more:hover {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 16px rgba(21, 70, 184, 0.25);
    transform: translateY(-2px);
}

/* ============================================================
   页脚 - Dark Premium (Compact)
   ============================================================ */
.footer {
    background: #00417f;
    color: rgba(255,255,255,0.85);
    padding: 36px 0 0;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), rgba(255,255,255,0.2), rgba(255,255,255,0.1), transparent);
}

.footer::after {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(21, 70, 184, 0.25) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.12);
    position: relative;
    z-index: 1;
}

.footer h4 {
    font-size: 15px;
    color: var(--white);
    margin-bottom: 14px;
    letter-spacing: 1.5px;
    font-weight: 600;
    position: relative;
    display: inline-block;
}

.footer h4::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 67px;
    height: 2px;
    background: rgba(255,255,255,0.3);
    border-radius: 2px;
}

.footer-contact {
    text-align: left;
}

.footer-contact h4 {
    font-size: 16px;
    color: var(--white);
    margin-bottom: 16px;
    letter-spacing: 2px;
    font-weight: 600;
}

/* 联系信息行式布局 */
.footer-contact-info {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
    align-items: center;
}

.footer-contact-info p {
    font-size: 13.5px;
    margin: 0;
    line-height: 1.6;
    color: rgba(255,255,255,0.75);
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-contact-info a {
    color: rgba(255,255,255,0.75);
    transition: color 0.2s;
}

.footer-contact-info a:hover {
    color: #fff;
    text-decoration: underline;
}

.footer-contact-label {
    flex-shrink: 0;
    min-width: 46px;
    padding: 2px 10px;
    border-radius: 20px;
    background: rgba(255,255,255,0.12);
    font-size: 12.5px;
    color: #fff;
    text-align: center;
    letter-spacing: 1px;
}

.footer-bottom {
    text-align: center;
    padding: 16px 0;
    font-size: 12.5px;
    color: rgba(255,255,255,0.45);
    position: relative;
    z-index: 1;
}

/* ============================================================
   汉堡菜单按钮（移动端）
   ============================================================ */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
    position: relative;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.nav-toggle:hover {
    background: rgba(21, 70, 184, 0.06);
}

.nav-toggle-bar {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--zinc-600);
    border-radius: 2px;
    transition: transform 0.3s var(--ease-spring), opacity 0.2s ease;
    transform-origin: center;
}

/* 激活态 → X 形 */
.nav-toggle.active .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active .nav-toggle-bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav-toggle.active .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* 抽屉内搜索项（仅移动端显示） */
.nav-search-item {
    display: none;
}

/* ============================================================
   响应式
   ============================================================ */

/* ----- 1024px: 小平板 / 小笔记本 ----- */
@media (max-width: 1024px) {
    .container {
        padding: 0 20px;
    }

    .intro-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

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

    .intro-section,
    .team-section,
    .achievement-section,
    .equipment-section {
        padding: 48px 0;
    }

    .equipment-grid-home {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .section-title { font-size: 30px; }

    .logo-icon { height: 70px; }
}

/* ----- 768px: 平板竖屏 ----- */
@media (max-width: 768px) {
    /* 防止移动端抽屉菜单导致的横向滚动 */
    html, body {
        overflow-x: hidden;
    }

    .container {
        padding: 0 18px;
    }

    /* --- 导航栏 → 汉堡菜单 --- */
    .nav-toggle {
        display: flex;
    }

    .navbar .container {
        display: flex;
        justify-content: flex-end;
        align-items: center;
    }

    .nav-list {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(300px, 82vw);
        height: 100vh;
        height: 100dvh;
        flex-direction: column;
        justify-content: flex-start;
        padding: 72px 0 32px;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(24px) saturate(180%);
        -webkit-backdrop-filter: blur(24px) saturate(180%);
        box-shadow: -8px 0 40px rgba(2, 30, 110, 0.12);
        transition: right 0.4s var(--ease-spring);
        z-index: 999;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .nav-list.active {
        right: 0;
    }

    /* 移动端：顶部搜索移到汉堡菜单内 */
    .header-top .site-search {
        display: none;
    }

    .nav-search-item {
        display: block;
        padding: 0 20px 18px;
    }

    .mobile-nav-search-form {
        display: flex;
        align-items: center;
        border: 1px solid var(--zinc-200);
        border-radius: 24px;
        background: var(--zinc-50);
        padding: 4px 5px 4px 14px;
        transition: var(--transition);
    }

    .mobile-nav-search-form:focus-within {
        border-color: var(--primary);
        background: #fff;
        box-shadow: 0 0 0 3px rgba(21,70,184,0.08);
    }

    .mobile-nav-search-input {
        flex: 1;
        min-width: 0;
        border: none;
        outline: none;
        background: transparent;
        font-size: 14px;
        color: var(--zinc-700);
    }

    .mobile-nav-search-input::placeholder {
        color: var(--zinc-400);
    }

    .mobile-nav-search-btn {
        width: 32px;
        height: 32px;
        border: none;
        border-radius: 50%;
        background: var(--primary);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        flex-shrink: 0;
        transition: var(--transition);
    }

    .mobile-nav-search-btn:hover {
        background: var(--primary-dark);
    }

    .nav-item {
        width: 100%;
    }

    .nav-item a {
        padding: 15px 28px;
        font-size: 15px;
        border-bottom: 1px solid var(--zinc-100);
    }

    .nav-item a::before {
        display: none;
    }

    /* 移动端激活项高亮 */
    .nav-item.active > a {
        color: var(--primary);
        font-weight: 600;
        background: rgba(21,70,184,0.04);
    }

    /* 移动端导航遮罩 */
    .nav-overlay {
        position: fixed;
        inset: 0;
        background: rgba(2, 30, 110, 0.25);
        z-index: 998;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.35s ease;
    }

    .nav-overlay.active {
        opacity: 1;
        pointer-events: auto;
    }

    /* 移动端下拉菜单 */
    .nav-dropdown > a {
        display: flex;
        justify-content: space-between;
        align-items: center;
        cursor: pointer;
    }

    /* 移动端下拉箭头 */
    .nav-dropdown > a::after {
        content: '';
        display: inline-block;
        width: 7px;
        height: 7px;
        border-right: 2px solid var(--zinc-400);
        border-bottom: 2px solid var(--zinc-400);
        transform: rotate(45deg);
        transition: transform 0.3s var(--ease-spring);
        flex-shrink: 0;
        margin-left: auto;
        margin-bottom: 0;
        opacity: 1;
    }

    .nav-dropdown.submenu-open > a::after {
        transform: rotate(-135deg);
        border-color: var(--primary);
    }

    /* 中和桌面端 :hover 规则，防止移动端干扰 */
    .nav-dropdown:hover .submenu {
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .submenu {
        position: static;
        top: auto;
        left: auto;
        transform: none;
        opacity: 1;
        visibility: visible;
        background: rgba(21,70,184,0.03);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        border-radius: 0;
        box-shadow: none;
        padding: 0;
        margin: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s var(--ease-spring);
        min-width: 100%;
        width: 100%;
        z-index: auto;
        list-style: none;
    }

    .submenu.open {
        max-height: 500px;
    }

    .submenu li a {
        padding: 13px 28px 13px 44px;
        font-size: 14px;
        border-bottom: 1px solid rgba(0,0,0,0.04);
        text-align: left;
    }

    .submenu li.active a {
        color: var(--primary);
        font-weight: 600;
    }

    /* --- Header --- */
    .header-main {
        padding: 10px 0;
    }

    .logo-area { min-width: 0; }
    .logo-icon {
        height: auto;
        flex-shrink: 1;
    }
    .logo-icon img {
        max-width: 100%;
        height: auto;
        max-height: 60px;
    }

    /* 站内搜索（移动端） */
    .site-search-input { width: 150px; }
    .site-search-form { padding-left: 12px; }

    /* --- Banner --- */
    .bannerSwiper { height: 260px; }

    .banner-breadcrumb {
        padding: 18px 0;
    }

    .breadcrumb-page-title {
        font-size: 22px;
    }

    /* --- Section --- */
    .intro-section,
    .team-section,
    .achievement-section {
        padding: 52px 0;
    }

    .section-header { margin-bottom: 36px; }

    .section-title { font-size: 24px; }

    /* 快速入口 */
    .quicklinks-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

    .quicklink-card {
        padding: 24px 14px 20px;
    }

    .ql-icon {
        width: 44px;
        height: 44px;
        margin-bottom: 12px;
    }

    .quicklink-card h4 { font-size: 14px; }

    .quicklink-card p { font-size: 11.5px; }

    .btn-more {
        padding: 8px 24px;
        font-size: 13px;
    }

    .section-subtitle {
        font-size: 11px;
        letter-spacing: 3px;
    }

    /* --- 简介轮播 --- */
    .introSwiper { height: auto; }
    .intro-news-img { height: 220px; }

    .intro-description {
        padding: 16px 18px;
        margin-top: 16px;
    }

    .intro-description p {
        font-size: 13.5px;
        text-indent: 1.5em;
    }

    /* --- 新闻面板 --- */
    .news-header {
        padding: 14px 18px;
    }

    .news-header h3 { font-size: 16px; }

    .news-item {
        padding: 12px 18px;
    }

    .news-item a {
        white-space: normal;
        font-size: 13px;
    }

    .news-date-badge {
        width: 44px;
        min-width: 44px;
        margin-right: 12px;
    }

    .news-date-badge .date-day {
        font-size: 17px;
    }

    .news-date-badge .date-mon {
        font-size: 9px;
    }

    /* 板块背景图缩小 */
    .section-bg-intro { width: 180px; bottom: 16px; right: 8px; }
    .section-bg-team { width: 160px; top: 20px; right: 8px; }
    .section-bg-achievement { width: 220px; bottom: 20px; left: 8px; }

    /* --- 团队 / 成果 --- */
    .team-avatar { height: 170px; }

    .team-info { padding: 16px 14px 20px; }

    .team-info h4 { font-size: 16px; }

    .achievement-img { height: 180px; }

    .achievement-info { padding: 16px; }

    .achievement-info h4 { font-size: 15px; }

    .achievement-tag {
        font-size: 10px;
        padding: 4px 10px;
        top: 10px;
        right: 10px;
    }

    /* --- 仪器设备 --- */
    .equipment-grid-home {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .equipment-card-img {
        height: 180px;
    }

    .equipment-card-caption {
        padding: 12px 12px;
    }

    .equipment-card-caption h4 {
        font-size: 13px;
    }

    .equipment-card-caption p {
        font-size: 11px;
    }

    /* --- Footer --- */
    .footer {
        padding: 28px 0 0;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        padding-bottom: 20px;
    }

    .footer h4 { margin-bottom: 10px; }

    .footer-contact-info {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }

    .footer-contact-info p {
        font-size: 12.5px;
    }

    .footer-bottom {
        padding: 12px 0;
        font-size: 11px;
    }
}

/* ----- 480px: 大屏手机 ----- */
@media (max-width: 480px) {
    .container {
        padding: 0 14px;
    }

    .header-main {
        padding: 8px 0;
    }

    .logo-icon svg {
        width: 30px;
        height: 30px;
    }

    .logo-area { min-width: 0; }
    .logo-icon {
        height: auto;
        flex-shrink: 1;
    }
    .logo-icon img {
        max-width: 100%;
        height: auto;
        max-height: 50px;
    }

    /* 站内搜索（小屏） */
    .site-search-input { width: 100px; }
    .site-search-form { padding-left: 10px; }
    .site-search-btn { width: 30px; height: 30px; }

    /* Banner */
    .bannerSwiper { height: 200px; }

    .banner-breadcrumb {
        padding: 14px 0;
    }

    .breadcrumb-page-title {
        font-size: 18px;
        letter-spacing: 1px;
    }

    .banner-breadcrumb .breadcrumb {
        font-size: 11.5px;
    }

    .bannerSwiper .banner-pag.swiper-pagination-bullets {
        bottom: 18px;
    }

    .bannerSwiper .banner-pag .swiper-pagination-bullet {
        width: 7px;
        height: 7px;
    }

    .bannerSwiper .banner-pag .swiper-pagination-bullet-active {
        width: 22px;
    }

    /* Section */
    .intro-section,
    .team-section,
    .achievement-section,
    .equipment-section {
        padding: 40px 0;
    }

    .section-header { margin-bottom: 28px; }

    .section-title {
        font-size: 21px;
        letter-spacing: 0.5px;
    }

    /* 快速入口 */
    .quicklinks-section {
        padding: 40px 0;
    }

    .quicklinks-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .quicklink-card {
        padding: 18px 10px 16px;
    }

    .ql-icon {
        width: 36px;
        height: 36px;
        margin-bottom: 8px;
    }

    .ql-icon svg {
        width: 28px;
        height: 28px;
    }

    .quicklink-card h4 { font-size: 13px; }

    .quicklink-card p { font-size: 10.5px; }

    .section-subtitle {
        font-size: 10px;
        letter-spacing: 2.5px;
        margin-bottom: 14px;
    }

    .section-divider {
        width: 44px;
        height: 2px;
    }

    /* 简介 */
    .introSwiper { height: auto; }
    .intro-news-img { height: 180px; }

    .intro-description {
        padding: 14px 14px;
        border-left-width: 2px;
    }

    .intro-description p {
        font-size: 12.5px;
        text-indent: 1.2em;
        line-height: 1.8;
    }

    /* 新闻 */
    .news-header {
        padding: 12px 14px;
    }

    .news-header h3 { font-size: 15px; }

    .news-item {
        padding: 10px 14px;
    }

    .news-item a { font-size: 16px; }

    .news-date-badge {
        width: 49px;
        min-width: 40px;
        margin-right: 10px;
    }

    .news-date-badge .date-day { font-size: 16px; }
    .news-date-badge .date-mon { font-size: 8.5px; }

    /* 团队卡片 */
    .team-avatar { height: 150px; }

    .team-info {
        padding: 14px 12px 16px;
    }

    .team-info h4 { font-size: 15px; }

    .team-role { font-size: 11px; }

    .team-desc { font-size: 12px; }

    /* 成果卡片 */
    .achievement-img { height: 160px; }

    .achievement-info { padding: 14px; }

    .achievement-info h4 { font-size: 14px; }

    .achievement-info p { font-size: 12px; }

    .achievement-tag {
        font-size: 9px;
        padding: 3px 8px;
        top: 8px;
        right: 8px;
    }

    /* 仪器设备 */
    .equipment-grid-home {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .equipment-card-img {
        height: 200px;
    }

    .equipment-card-caption h4 {
        font-size: 14px;
    }

    /* Footer */
    .footer {
        padding: 36px 0 0;
    }

    .footer-grid {
        gap: 22px;
        padding-bottom: 24px;
    }

    .footer h4 { font-size: 14px; }

    .footer-info p,
    .footer-links ul li a {
        font-size: 12.5px;
    }

    .qrcode-placeholder {
        width: 90px;
        height: 90px;
    }

    .footer-qrcode p { font-size: 11px; }

    .footer-bottom {
        padding: 14px 0;
        font-size: 10.5px;
    }
}

/* ============================================================
   科技感 SVG 背景装饰
   ============================================================ */

/* 全局科技背景层 */
.tech-bg-decorations {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.tech-grid {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

/* 浮动光斑 */
.tech-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    animation: orbFloat 12s ease-in-out infinite;
}

.tech-orb-1 {
    width: 500px;
    height: 500px;
    top: -15%;
    left: -10%;
    background: radial-gradient(circle, rgba(21,70,184,0.06) 0%, transparent 70%);
    animation-delay: 0s;
}

.tech-orb-2 {
    width: 400px;
    height: 400px;
    top: 40%;
    right: -8%;
    background: radial-gradient(circle, rgba(2,30,110,0.05) 0%, transparent 70%);
    animation-delay: -4s;
}

.tech-orb-3 {
    width: 350px;
    height: 350px;
    bottom: -10%;
    left: 30%;
    background: radial-gradient(circle, rgba(21,70,184,0.04) 0%, transparent 70%);
    animation-delay: -8s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -25px) scale(1.05); }
    50% { transform: translate(-15px, -40px) scale(0.95); }
    75% { transform: translate(-25px, 15px) scale(1.03); }
}

/* 章节级科技装饰 */
.decor-molecule {
    position: absolute;
    top: 40px;
    left: 30px;
    z-index: 0;
    pointer-events: none;
    opacity: 0.7;
}

.decor-circuit {
    position: absolute;
    top: 30px;
    right: 40px;
    z-index: 0;
    pointer-events: none;
    opacity: 0.6;
}

.decor-hexagon {
    position: absolute;
    bottom: 30px;
    left: 50px;
    z-index: 0;
    pointer-events: none;
    opacity: 0.5;
}

.decor-particles {
    position: absolute;
    top: 20px;
    right: 60px;
    z-index: 0;
    pointer-events: none;
    opacity: 0.65;
}

/* 确保内容在装饰之上 */
.intro-section,
.team-section,
.achievement-section {
    position: relative;
    z-index: 1;
}

/* 移动端隐藏装饰减负 */
@media (max-width: 768px) {
    .decor-molecule,
    .decor-circuit,
    .decor-hexagon,
    .decor-particles {
        opacity: 0.25;
    }
    .tech-orb {
        filter: blur(60px);
    }
    .tech-orb-1 { width: 300px; height: 300px; }
    .tech-orb-2 { width: 250px; height: 250px; }
    .tech-orb-3 { width: 200px; height: 200px; }
}
@keyframes fadeUpIn {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.team-card, .achievement-card {
    animation: fadeUpIn 0.6s var(--ease-out-expo) both;
}

.teamSwiper .swiper-slide:nth-child(1) .team-card { animation-delay: 0.05s; }
.teamSwiper .swiper-slide:nth-child(2) .team-card { animation-delay: 0.12s; }
.teamSwiper .swiper-slide:nth-child(3) .team-card { animation-delay: 0.19s; }
.teamSwiper .swiper-slide:nth-child(4) .team-card { animation-delay: 0.26s; }

.achievementSwiper .swiper-slide:nth-child(1) .achievement-card { animation-delay: 0.05s; }
.achievementSwiper .swiper-slide:nth-child(2) .achievement-card { animation-delay: 0.12s; }
.achievementSwiper .swiper-slide:nth-child(3) .achievement-card { animation-delay: 0.19s; }
.achievementSwiper .swiper-slide:nth-child(4) .achievement-card { animation-delay: 0.26s; }

/* 新闻项微动效 */
.news-item {
    animation: fadeUpIn 0.5s var(--ease-out-expo) both;
}
.news-item:nth-child(1) { animation-delay: 0.04s; }
.news-item:nth-child(2) { animation-delay: 0.08s; }
.news-item:nth-child(3) { animation-delay: 0.12s; }
.news-item:nth-child(4) { animation-delay: 0.16s; }
.news-item:nth-child(5) { animation-delay: 0.20s; }
.news-item:nth-child(6) { animation-delay: 0.24s; }
.news-item:nth-child(7) { animation-delay: 0.28s; }
.news-item:nth-child(8) { animation-delay: 0.32s; }
.news-item:nth-child(9) { animation-delay: 0.36s; }

/* ============================================================
   滚动揭示动画
   ============================================================ */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease-out-expo), transform 0.7s var(--ease-out-expo);
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* 首页 banner 不需要滚动动画 */
@media (prefers-reduced-motion: reduce) {
    .reveal-on-scroll { transition: none; }
    .team-card, .achievement-card, .news-item { animation: none; }
}