/* ============================================
   以新电子 EKONG 官网样式
   Wendougee 风格 + Bootstrap 5 + Tailwind CSS
   ============================================ */

/* ---- 基础重置与字体 ---- */
:root {
    --brand: #2563EB;
    --brand-dark: #1D4ED8;
    --brand-light: #3B82F6;
    --accent: #0EA5E9;
    --text-title: #1E293B;
    --text-body: #64748B;
    --bg-warm: #F0F7FF;
    --bg-light: #F8FBFF;
    --dark-section: #1E3A8A;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Prompt', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: #64748B;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    background: #ffffff;
}

h1, h2, h3, h4, h5, h6 {
    color: #1E293B;
    font-weight: 600;
}

/* ---- 通用组件 ---- */
.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: #2563EB;
    margin-bottom: 1rem;
}

.section-tag.light {
    color: rgba(255, 255, 255, 0.7);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 300;
    line-height: 1.2;
    letter-spacing: 2px;
    color: #1E293B;
}

.section-title.light {
    color: #ffffff;
}

.section-desc {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-body);
}

.section-desc.light {
    color: rgba(255, 255, 255, 0.75);
}

/* ---- 品牌按钮 ---- */
.btn-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background-color: #2563EB;
    color: #fff;
    border: none;
    border-radius: 28px;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 1px;
    transition: var(--transition);
    text-decoration: none;
}

.btn-brand:hover {
    background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.35);
}

.btn-brand .arrow-icon {
    display: inline-block;
    width: 28px;
    height: 28px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    position: relative;
    transition: var(--transition);
}

.btn-brand .arrow-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 6px;
    height: 6px;
    border-top: 2px solid #fff;
    border-right: 2px solid #fff;
    transform: translate(-60%, -50%) rotate(45deg);
}

.btn-brand:hover .arrow-icon {
    background: rgba(255, 255, 255, 0.35);
}

.btn-outline-light {
    border-radius: 28px;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 1px;
    border: 1px solid #3B82F6;
    color: #2563EB;
    transition: var(--transition);
    background: rgba(37, 99, 235, 0.06);
}

.btn-outline-light:hover {
    background: #3B82F6;
    color: #fff;
    border-color: #3B82F6;
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 0.9375rem;
}

/* ---- 导航栏 (Wendougee 风格) ---- */
.header-area {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1030;
    transition: var(--transition);
}

.header-navigation {
    position: relative;
    padding: 1rem 0;
    transition: var(--transition);
    background: #ffffff;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.header-navigation.scrolled {
    background: #ffffff;
    backdrop-filter: blur(16px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

/* 品牌底纹 */
.header-navigation::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(1.5px 1.5px at 80px 25px, rgba(37,99,235,0.15), transparent),
        radial-gradient(1px 1px at 180px 55px, rgba(37,99,235,0.1), transparent),
        radial-gradient(2px 2px at 320px 20px, rgba(37,99,235,0.15), transparent),
        radial-gradient(1px 1px at 480px 50px, rgba(37,99,235,0.1), transparent);
    background-repeat: repeat;
    background-size: 600px 80px;
    pointer-events: none;
    z-index: 0;
}

/* 遮罩层 */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

/* 主菜单容器 */
.primary-menu {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 1;
}

/* Logo */
.site-branding .brand-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.site-branding .site-logo {
    height: 40px;
    width: auto;
    display: block;
    transition: var(--transition);
}

.header-navigation.scrolled .site-branding .site-logo {
    height: 36px;
}

/* 导航菜单区域 */
.nav-menu {
    display: flex;
    align-items: center;
}

/* 主导航 */
.main-menu > ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
}

.main-menu > ul > li {
    position: relative;
    margin: 0 0.25rem;
}

.main-menu > ul > li > a {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--text-title);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 1px;
    padding: 0.6rem 1rem;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    border-radius: 6px;
    z-index: 1;
}

.header-navigation.scrolled .main-menu > ul > li > a {
    color: var(--text-title);
}

.main-menu > ul > li:hover > a,
.main-menu > ul > li > a:hover {
    color: #2563EB;
    background: rgba(37, 99, 235, 0.06);
}

/* 产品中心与其他菜单保持一致 */

/* 下拉箭头 */
.dd-trigger {
    display: inline-flex;
    align-items: center;
    transition: transform 0.3s ease;
}

.main-menu > ul > li:hover > a .dd-trigger {
    transform: rotate(180deg);
}

/* 子菜单（垂直排列） */
.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1031;
    list-style: none;
    display: flex;
    flex-direction: column;
}

.main-menu > ul > li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sub-menu li {
    position: relative;
    width: 100%;
}

.sub-menu li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.25rem;
    color: var(--text-title);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.sub-menu li a:hover {
    color: #2563EB;
    background: rgba(37, 99, 235, 0.05);
    padding-left: 1.5rem;
}

.sub-menu li .dd-trigger {
    transform: rotate(-90deg);
    opacity: 0.5;
    transition: transform 0.3s ease;
}

.sub-menu li.has-children:hover > a .dd-trigger {
    transform: rotate(0deg);
}

/* ===== Windows 风格级联菜单 ===== */
.cascade-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(30, 58, 110, 0.2);
    padding: 0.5rem 0;
    z-index: 1031;
    min-width: 200px;
    border: 1px solid rgba(37, 99, 235, 0.12);
    transform: translateY(-6px);
    transition: all 0.2s ease;
}

.cascade-menu.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

/* 桌面端 hover 触发级联菜单 */
.has-cascade-menu:hover > .cascade-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

/* 桥接 8px 间隙，防止鼠标移动中断 hover */
.has-cascade-menu::after {
    content: '';
    position: absolute;
    left: 0;
    top: 100%;
    width: 100%;
    height: 8px;
    background: transparent;
    z-index: 1031;
}

.cascade-menu > ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.cascade-menu > ul > li {
    position: relative;
}

.cascade-menu > ul > li > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.7rem 1.25rem;
    color: var(--text-title);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.cascade-menu > ul > li > a:hover {
    color: #2563EB;
    background: rgba(37, 99, 235, 0.06);
}

.cascade-arrow {
    opacity: 0.4;
    transition: var(--transition);
    margin-left: 1rem;
}

.cascade-menu > ul > li.has-cascade:hover > a .cascade-arrow {
    opacity: 1;
    color: #2563EB;
}

/* 级联子菜单（右侧弹出，垂直排列） */
.cascade-submenu {
    position: absolute;
    top: 0;
    left: calc(100% + 8px);
    min-width: 200px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(30, 58, 110, 0.2);
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-6px);
    transition: all 0.2s ease;
    z-index: 1032;
    list-style: none;
    border: 1px solid rgba(37, 99, 235, 0.12);
}

.cascade-submenu::before {
    content: '';
    position: absolute;
    top: 1rem;
    left: -8px;
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-right: 8px solid #fff;
}

.has-cascade:hover > .cascade-submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.cascade-submenu li {
    position: relative;
}

.cascade-submenu li a {
    display: block;
    padding: 0.65rem 1.25rem;
    color: var(--text-title);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.cascade-submenu li a:hover {
    color: #2563EB;
    background: rgba(37, 99, 235, 0.06);
    padding-left: 1.5rem;
}

/* 右侧功能区 */
.nav-right-item {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

/* 语言切换 */
.lang-dropdown a {
    text-decoration: none;
}

.lang-dropdown span {
    font-size: 1rem;
    font-weight: 600;
    color: #1E293B;
    transition: var(--transition);
    font-family: 'Prompt', sans-serif;
    position: relative;
    z-index: 1;
}

.header-navigation.scrolled .lang-dropdown span {
    color: #1E293B;
}

.lang-dropdown a:hover span {
    color: #2563EB;
}

/* 自定义汉堡按钮 */
.navbar-toggler {
    width: 28px;
    height: 20px;
    position: relative;
    cursor: pointer;
    display: none;
    flex-direction: column;
    justify-content: space-between;
}

.navbar-toggler span {
    display: block;
    width: 100%;
    height: 2px;
    background: #1E293B;
    transition: all 0.3s ease;
    border-radius: 1px;
    position: relative;
    z-index: 1;
}

.header-navigation.scrolled .navbar-toggler span {
    background: #1E293B;
}

.navbar-toggler.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.navbar-toggler.active span:nth-child(2) {
    opacity: 0;
}

.navbar-toggler.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* 移动端菜单面板 */
@media (max-width: 1199.98px) {
    .navbar-toggler {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: -320px;
        width: 320px;
        height: 100vh;
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem;
        z-index: 1032;
        transition: left 0.4s ease;
        overflow-y: auto;
    }

    .nav-menu.open {
        left: 0;
    }

    .mobile-logo {
        margin-bottom: 2rem;
    }

    .mobile-logo .brand-text {
        color: #1E293B;
        font-size: 1.35rem;
        font-weight: 700;
        letter-spacing: 4px;
    }

    .mobile-logo .brand-en {
        color: var(--text-body);
        font-size: 0.65rem;
        font-weight: 500;
        letter-spacing: 2px;
    }

    .main-menu {
        width: 100%;
    }

    .main-menu > ul {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
    }

    .main-menu > ul > li {
        width: 100%;
        margin: 0;
        border-bottom: 1px solid #E2E8F0;
    }

    .main-menu > ul > li > a {
        color: var(--text-title);
        padding: 1rem 0;
        font-size: 0.9375rem;
        font-weight: 600;
        letter-spacing: 1px;
        justify-content: space-between;
    }

    .main-menu > ul > li > a .dd-trigger {
        transition: transform 0.3s ease;
    }

    .main-menu > ul > li.open > a .dd-trigger {
        transform: rotate(180deg);
    }

    .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: #F0F7FF;
        border-radius: 0;
        max-height: 0;
        overflow: hidden;
        padding: 0;
        transition: max-height 0.4s ease;
        min-width: auto;
        width: 100%;
    }

    .has-children.open > .sub-menu {
        max-height: 500px;
        padding: 0.5rem 0;
    }

    .sub-menu li a {
        padding: 0.75rem 1rem;
    }

    .sub-menu li .dd-trigger {
        transform: rotate(0deg);
        transition: transform 0.3s ease;
    }

    .has-children.open > a .dd-trigger {
        transform: rotate(90deg);
    }

    /* 移动端 Mega Menu */
    .cascade-menu {
        position: static;
        display: none;
        box-shadow: none;
        background: #F0F7FF;
        border-radius: 0;
        min-width: auto;
        width: 100%;
        border: none;
        padding: 0;
    }

    .cascade-menu.open {
        display: block;
        animation: none;
    }

    .cascade-menu > ul > li > a {
        padding: 0.75rem 1rem;
        color: var(--text-title);
    }

    .cascade-submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: #EBF4FF;
        border-radius: 0;
        border: none;
        max-height: 0;
        overflow: hidden;
        padding: 0;
        transition: max-height 0.35s ease;
        min-width: auto;
        width: 100%;
    }

    .cascade-submenu::before {
        display: none;
    }

    .has-cascade.open > .cascade-submenu {
        max-height: 300px;
        padding: 0.25rem 0;
    }

    .cascade-submenu li a {
        padding: 0.6rem 1.5rem;
        font-size: 0.78rem;
    }

    .mega-menu-sidebar {
        width: 100%;
        background: transparent;
        border-right: none;
        padding: 0;
    }

    .mega-menu-sidebar li a {
        padding: 0.75rem 1rem;
        border-left: none;
    }

    .mega-menu-content {
        padding: 0 1rem 0.5rem;
        min-width: auto;
    }

    .mega-menu-tab {
        display: block;
    }

    .mega-menu-tab h4 {
        display: none;
    }

    .mega-menu-tab ul li a {
        padding: 0.6rem 1rem;
        border-bottom: 1px solid #e2e8f0;
    }

    body.menu-open {
        overflow: hidden;
    }
}

/* ---- 轮播图 ---- */
.hero-slider-section {
    padding-top: 72px;
    background: #fff;
}

.heroSwiper {
    width: 100%;
    height: 520px;
    position: relative;
}

.heroSwiper .swiper-slide {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-slide-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    transition: transform 6s ease;
}

.heroSwiper .swiper-slide-active .hero-slide-bg {
    transform: scale(1);
}

.hero-slide-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(30,58,110,0.75) 0%, rgba(30,58,110,0.35) 50%, rgba(30,58,110,0.15) 100%);
    z-index: 1;
}

.hero-slide-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 2rem 0;
    color: #fff;
}

.hero-slide-tag {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: rgba(37, 99, 235, 0.9);
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}

.hero-slide-title {
    font-size: clamp(1.75rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
    max-width: 600px;
    font-family: 'Prompt', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    text-shadow: 0 2px 12px rgba(0,0,0,0.3);
}

.hero-slide-desc {
    font-size: clamp(0.9375rem, 1.5vw, 1.125rem);
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 1.75rem;
    max-width: 480px;
    opacity: 0.92;
    text-shadow: 0 1px 6px rgba(0,0,0,0.3);
}

.hero-swiper-pagination {
    bottom: 24px !important;
}

.hero-swiper-pagination .swiper-pagination-bullet {
    width: 10px;
    height: 10px;
    background: rgba(255,255,255,0.4);
    opacity: 1;
    transition: all 0.3s ease;
}

.hero-swiper-pagination .swiper-pagination-bullet-active {
    background: #2563EB;
    width: 28px;
    border-radius: 5px;
}

.hero-swiper-prev,
.hero-swiper-next {
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(8px);
    border-radius: 50%;
    color: #fff;
    transition: all 0.3s ease;
    top: 50%;
    transform: translateY(-50%);
    margin-top: 0;
}

.hero-swiper-prev::after,
.hero-swiper-next::after {
    font-size: 18px;
    font-weight: 700;
}

.hero-swiper-prev:hover,
.hero-swiper-next:hover {
    background: rgba(37, 99, 235, 0.9);
    color: #fff;
}

.hero-swiper-prev {
    left: 24px;
}

.hero-swiper-next {
    right: 24px;
}

@media (max-width: 991.98px) {
    .heroSwiper {
        height: 420px;
    }
    .hero-swiper-prev,
    .hero-swiper-next {
        display: none;
    }
}

@media (max-width: 767.98px) {
    .hero-slider-section {
        padding-top: 64px;
    }
    .heroSwiper {
        height: 320px;
    }
    .hero-slide-content {
        padding: 1.5rem 0;
    }
    .hero-slide-title {
        max-width: 100%;
    }
    .hero-slide-desc {
        max-width: 100%;
    }
    .hero-swiper-pagination {
        bottom: 16px !important;
    }
}

/* ---- 产品解决方案 ---- */
/* ---- 产品中心 ---- */
.products-section {
    padding: 120px 0;
    background: linear-gradient(180deg, #F8FBFF 0%, #ffffff 100%);
}

.product-card {
    background: #fff;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s ease;
    height: 100%;
    border: 1px solid rgba(37, 99, 235, 0.08);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(37, 99, 235, 0.12);
    border-color: rgba(37, 99, 235, 0.15);
}

.product-card-top {
    height: 4px;
    background: linear-gradient(90deg, var(--brand) 0%, var(--accent) 100%);
}

.product-card-body {
    padding: 2rem;
}

.product-card-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin-bottom: 1.25rem;
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.2);
}

.product-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-title);
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.product-card-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-card-list li {
    font-size: 0.8125rem;
    color: var(--text-body);
    padding: 0.4rem 0;
    border-bottom: 1px solid #F1F5F9;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-card-list li:last-child {
    border-bottom: none;
}

.product-card-list li::before {
    content: '';
    width: 5px;
    height: 5px;
    background: var(--brand-light);
    border-radius: 50%;
    flex-shrink: 0;
}

.product-card-list li a {
    color: inherit;
    text-decoration: none;
    transition: color 0.25s ease;
    display: block;
    flex: 1;
}

.product-card-list li a:hover {
    color: var(--brand);
}

@media (max-width: 991.98px) {
    .products-section {
        padding: 80px 0;
    }

    .product-card-body {
        padding: 1.5rem;
    }
}

.solutions-section {
    padding: 120px 0;
    background: #fff;
}

.nav-pills .nav-link {
    color: var(--text-body);
    background: transparent;
    border: 1px solid #BFDBFE;
    border-radius: 28px;
    padding: 0.625rem 1.5rem;
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 1px;
    margin: 0 0.5rem 0.5rem;
    transition: var(--transition);
}

.nav-pills .nav-link:hover {
    border-color: #3B82F6;
    color: #2563EB;
}

.nav-pills .nav-link.active {
    background: #3B82F6;
    border-color: #2563EB;
    color: #fff;
}

.productSwiper {
    border-radius: 1rem;
    overflow: hidden;
}

.productSwiper .swiper-slide img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.productSwiper .swiper-pagination-bullet {
    background: rgba(255, 255, 255, 0.5);
    opacity: 1;
}

.productSwiper .swiper-pagination-bullet-active {
    background: #fff;
}

.product-name {
    font-size: 1.75rem;
    font-weight: 400;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.product-desc {
    color: var(--text-body);
    line-height: 1.8;
    font-size: 0.9375rem;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.spec-item {
    display: flex;
    flex-direction: column;
}

.spec-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: #2563EB;
    letter-spacing: 1px;
}

.spec-label {
    font-size: 0.75rem;
    color: var(--text-body);
    margin-top: 0.25rem;
    letter-spacing: 1px;
}

/* ---- 数据统计 ---- */
.stats-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #DBEAFE 0%, #BFDBFE 50%, #DBEAFE 100%);
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.6) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 50%);
}

.stats-section .container {
    position: relative;
    z-index: 1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-value-wrap {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.stat-number {
    font-size: 2.75rem;
    font-weight: 800;
    letter-spacing: 1px;
    line-height: 1;
    background: linear-gradient(135deg, #1E3A8A 0%, #2563EB 50%, #0EA5E9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 4px rgba(30, 58, 138, 0.15));
}

.stat-suffix {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, #2563EB 0%, #0EA5E9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.8125rem;
    color: #64748B;
    margin-top: 0.5rem;
    letter-spacing: 2px;
}

.clients-section {
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(191, 219, 254, 0.6);
    border-radius: 1rem;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
}

.clients-title {
    color: #1E40AF;
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 3px;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 50px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 0.5rem;
    transition: var(--transition);
    border: 1px solid rgba(191, 219, 254, 0.4);
}

.client-logo:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
}

/* ---- 资质荣誉 ---- */
.honors-section {
    padding: 120px 0;
    background: #fff;
}

.honor-card {
    background: #fff;
    border-radius: 1rem;
    padding: 2.5rem 2rem;
    text-align: center;
    border: 1px solid rgba(37, 99, 235, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    transition: all 0.4s ease;
    height: 100%;
}

.honor-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(37, 99, 235, 0.1);
    border-color: rgba(37, 99, 235, 0.15);
}

.honor-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin-bottom: 1.5rem;
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.2);
}

.honor-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-title);
    margin-bottom: 0.75rem;
    letter-spacing: 1px;
}

.honor-desc {
    font-size: 0.8125rem;
    color: var(--text-body);
    line-height: 1.7;
    margin: 0;
}

/* ---- 新闻动态 ---- */
.news-section {
    padding: 120px 0;
    background: linear-gradient(180deg, #ffffff 0%, #F8FBFF 100%);
}

.news-card {
    background: #fff;
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid rgba(37, 99, 235, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    transition: all 0.4s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(37, 99, 235, 0.1);
}

.news-date {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--brand);
    letter-spacing: 2px;
    margin-bottom: 1rem;
    padding: 0.35rem 0.75rem;
    background: rgba(37, 99, 235, 0.06);
    border-radius: 20px;
}

.news-title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-title);
    margin-bottom: 0.75rem;
    line-height: 1.5;
    letter-spacing: 0.5px;
}

.news-desc {
    font-size: 0.875rem;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 1.25rem;
    flex-grow: 1;
}

.news-link {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--brand);
    text-decoration: none;
    letter-spacing: 1px;
    transition: var(--transition);
    align-self: flex-start;
}

.news-link:hover {
    color: var(--brand-dark);
    padding-left: 4px;
}

.news-link::after {
    content: ' →';
    transition: var(--transition);
}

@media (max-width: 991.98px) {
    .honors-section,
    .news-section {
        padding: 80px 0;
    }

    .honor-card {
        padding: 2rem 1.5rem;
    }
}

/* ---- 联系表单 ---- */
.contact-section {
    padding: 120px 0;
    background: linear-gradient(180deg, #ffffff 0%, #F0F7FF 100%);
}

.contact-wrapper {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 1.5rem;
    padding: 4rem;
    box-shadow: 0 10px 60px rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.1);
    backdrop-filter: blur(20px);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.info-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.2);
}

.info-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-body);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.info-value {
    display: block;
    font-size: 1rem;
    color: #1E293B;
    font-weight: 500;
}

.contact-form .form-control,
.contact-form .form-select {
    border: none;
    border-bottom: 2px solid #E2E8F0;
    border-radius: 0;
    padding: 1rem 0;
    font-size: 0.9375rem;
    background: transparent;
    transition: var(--transition);
}

.contact-form .form-control:focus,
.contact-form .form-select:focus {
    border-color: #2563EB;
    box-shadow: none;
    background: transparent;
}

.contact-form .form-floating > label {
    padding-left: 0;
    color: #94A3B8;
    font-size: 0.875rem;
}

.contact-form .form-floating > .form-control:focus ~ label,
.contact-form .form-floating > .form-control:not(:placeholder-shown) ~ label,
.contact-form .form-floating > .form-select ~ label {
    color: #2563EB;
    transform: scale(0.85) translateY(-1.5rem) translateX(0);
}

/* ---- 页脚 ---- */
.footer-section {
    background: linear-gradient(180deg, #E0F2FE 0%, #BFDBFE 100%);
    padding: 80px 0 0;
    color: #64748B;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.footer-brand .brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1E40AF;
    letter-spacing: 4px;
}

.footer-brand .brand-en {
    font-size: 0.6875rem;
    font-weight: 500;
    color: #3B82F6;
    letter-spacing: 2px;
}

.footer-desc {
    font-size: 0.875rem;
    line-height: 1.8;
    color: #64748B;
}

.footer-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: #1E40AF;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #64748B;
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: #2563EB;
    padding-left: 4px;
}

.social-links {
    display: flex;
    gap: 0.75rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #3B82F6;
    transition: var(--transition);
    text-decoration: none;
}

.social-link:hover {
    background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
    color: #fff;
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.25);
}

.footer-bottom {
    border-top: 1px solid rgba(191, 219, 254, 0.6);
}

.copyright {
    font-size: 0.8125rem;
    color: #94A3B8;
    margin: 0;
}

.footer-bottom-link {
    font-size: 0.8125rem;
    color: #94A3B8;
    text-decoration: none;
    transition: var(--transition);
}

.footer-bottom-link:hover {
    color: #fff;
}

/* ---- 响应式调整 ---- */
@media (max-width: 991.98px) {
    .gallery-wrap {
        flex-direction: column;
        height: auto;
    }

    .gallery-item {
        height: 300px;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .gallery-item.active {
        flex: 1;
    }

    .gallery-content p {
        opacity: 1;
        transform: translateY(0);
    }

    .gallery-tag {
        opacity: 1;
        transform: translateY(0);
    }

    .contact-wrapper {
        padding: 2rem;
    }

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

    .header-navigation {
        background: linear-gradient(180deg, #1e3a6e 0%, #2e5a9e 50%, #254a82 100%);
        backdrop-filter: blur(16px);
        border-bottom: 1px solid rgba(100, 149, 237, 0.2);
    }

    .header-navigation.scrolled {
        background: linear-gradient(180deg, #1e3a6e 0%, #2e5a9e 50%, #254a82 100%);
    }
}

@media (max-width: 575.98px) {
    .hero-title {
        letter-spacing: 4px;
    }

    .section-title {
        letter-spacing: 1px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

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

    .contact-wrapper {
        padding: 1.5rem;
    }
}
/* ============================================
   产品导航树样式
   ============================================ */

.products-section-v2 {
    padding: 120px 0;
    background: linear-gradient(180deg, #F0F7FF 0%, #F8FBFF 50%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.product-tree {
    background: #F8FBFF;
    border-radius: 1rem;
    padding: 1.5rem;
    border: 1px solid rgba(37, 99, 235, 0.08);
    position: sticky;
    top: 90px;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
}

.product-tree::-webkit-scrollbar {
    width: 6px;
}

.product-tree::-webkit-scrollbar-track {
    background: transparent;
}

.product-tree::-webkit-scrollbar-thumb {
    background: rgba(37, 99, 235, 0.25);
    border-radius: 3px;
}

.product-tree::-webkit-scrollbar-thumb:hover {
    background: rgba(37, 99, 235, 0.4);
}

.product-tree-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-title);
    letter-spacing: 1px;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--brand);
}

.tree-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tree-menu li {
    position: relative;
}

.tree-menu > li > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.75rem;
    color: var(--text-title);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.tree-menu > li > a:hover {
    background: rgba(37, 99, 235, 0.06);
    color: var(--brand);
}

.tree-toggle {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s ease;
    color: var(--text-body);
}

.tree-toggle.open {
    transform: rotate(90deg);
    color: var(--brand);
}

.tree-submenu {
    list-style: none;
    padding: 0 0 0 1rem;
    margin: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.tree-submenu.open {
    max-height: 2000px;
}

.tree-submenu li a {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--text-body);
    font-size: 0.78rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
}

.tree-submenu li a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--brand);
    border-radius: 0 2px 2px 0;
    transition: height 0.3s ease;
}

.tree-submenu li a:hover {
    color: var(--brand);
    background: rgba(37, 99, 235, 0.06);
    padding-left: 1rem;
}

.tree-submenu li a:hover::before {
    height: 50%;
}

.tree-submenu li a.active {
    color: var(--brand);
    background: rgba(37, 99, 235, 0.1);
    font-weight: 600;
    padding-left: 1rem;
}

.tree-submenu li a.active::before {
    height: 60%;
}

.screen-link {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--text-body);
    font-size: 0.78rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
    cursor: pointer;
}

.screen-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--brand);
    border-radius: 0 2px 2px 0;
    transition: height 0.3s ease;
}

.screen-link:hover {
    color: var(--brand);
    background: rgba(37, 99, 235, 0.06);
    padding-left: 1rem;
}

.screen-link:hover::before {
    height: 50%;
}

.screen-link.active {
    color: var(--brand);
    background: rgba(37, 99, 235, 0.1);
    font-weight: 600;
    padding-left: 1rem;
}

.screen-link.active::before {
    height: 60%;
}

@media (max-width: 991.98px) {
    .product-tree {
        position: static;
        margin-bottom: 2rem;
    }
}
/* ============================================
   产品卡片样式
   ============================================ */

.category-product-cards {
    display: none;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.category-product-cards.active {
    display: grid;
    animation: cardsFadeIn 0.4s ease;
}

@keyframes cardsFadeIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

@media (max-width: 1199.98px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
}

@media (max-width: 767.98px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.875rem;
    }
}

@media (max-width: 575.98px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
}

.size-product-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(37, 99, 235, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.size-product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(37, 99, 235, 0.12);
    border-color: rgba(37, 99, 235, 0.18);
}

.size-product-card .card-img-wrap {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
}

.size-product-card .card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.size-product-card:hover .card-img-wrap img {
    transform: scale(1.06);
}

.size-product-card .card-img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(30,58,110,0.5) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.size-product-card:hover .card-img-overlay {
    opacity: 1;
}

.size-product-card .card-body {
    padding: 0.875rem 1rem 1rem;
}

.size-product-card .card-tag {
    display: inline-block;
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--brand);
    background: rgba(37, 99, 235, 0.06);
    padding: 0.2rem 0.5rem;
    border-radius: 20px;
    margin-bottom: 0.375rem;
}

.size-product-card h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-title);
    margin-bottom: 0.25rem;
    line-height: 1.4;
}

.size-product-card p {
    font-size: 0.75rem;
    color: var(--text-body);
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.size-product-card .card-arrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    background: linear-gradient(135deg, var(--brand) 0%, var(--accent) 100%);
    border-radius: 50%;
    color: #fff;
    margin-top: 0.625rem;
    transition: all 0.3s ease;
}

.size-product-card:hover .card-arrow {
    transform: translateX(4px);
}

/* 嵌套在 category-product-cards 中的 screen-product-cards */
.category-product-cards > .screen-product-cards {
    grid-column: 1 / -1;
    display: none;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.category-product-cards > .screen-product-cards.active {
    display: grid;
    animation: cardsFadeIn 0.4s ease;
}

@media (max-width: 1199.98px) {
    .category-product-cards.active,
    .category-product-cards > .screen-product-cards.active {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767.98px) {
    .category-product-cards.active,
    .category-product-cards > .screen-product-cards.active {
        grid-template-columns: 1fr;
    }
}
/* ============================================
   解决方案详情卡片
   ============================================ */

.solution-content {
    display: none;
}

.solution-content.active {
    display: block;
    animation: cardsFadeIn 0.4s ease;
}

.solution-detail-card {
    background: #fff;
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid rgba(37, 99, 235, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.solutionSwiper {
    border-radius: 1rem;
    overflow: hidden;
}

.solutionSwiper .swiper-slide img {
    width: 100%;
    height: 360px;
    object-fit: cover;
}

.solution-link {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--text-body);
    font-size: 0.78rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
}

.solution-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--brand);
    border-radius: 0 2px 2px 0;
    transition: height 0.3s ease;
}

.solution-link:hover {
    color: var(--brand);
    background: rgba(37, 99, 235, 0.06);
    padding-left: 1rem;
}

.solution-link:hover::before {
    height: 50%;
}

.solution-link.active {
    color: var(--brand);
    background: rgba(37, 99, 235, 0.1);
    font-weight: 600;
    padding-left: 1rem;
}

.solution-link.active::before {
    height: 60%;
}

@media (max-width: 991.98px) {
    .solution-detail-card {
        padding: 1.5rem;
    }

    .solutionSwiper .swiper-slide img {
        height: 280px;
    }
}
/* ============================================
   关于我们切换内容
   ============================================ */

.about-content {
    display: none;
}

.about-content.active {
    display: block;
    animation: cardsFadeIn 0.4s ease;
}

.about-link {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--text-body);
    font-size: 0.78rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
}

.about-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--brand);
    border-radius: 0 2px 2px 0;
    transition: height 0.3s ease;
}

.about-link:hover {
    color: var(--brand);
    background: rgba(37, 99, 235, 0.06);
    padding-left: 1rem;
}

.about-link:hover::before {
    height: 50%;
}

.about-link.active {
    color: var(--brand);
    background: rgba(37, 99, 235, 0.1);
    font-weight: 600;
    padding-left: 1rem;
}

.about-link.active::before {
    height: 60%;
}


/* ============================================
   Section 聚焦模式
   ============================================ */
.page-section.hidden-section {
    display: none !important;
}

/* ============================================
   邮件对话框样式
   ============================================ */
#emailModal .modal-content {
    border: none;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

#emailModal .modal-header {
    border-bottom: 1px solid rgba(37, 99, 235, 0.1);
    padding: 1.5rem;
}

#emailModal .modal-title {
    font-weight: 600;
    color: #1E40AF;
}

#emailModal .modal-body {
    padding: 1.5rem;
}

#emailModal .form-label {
    font-weight: 500;
    color: #374151;
    font-size: 0.9rem;
}

#emailModal .form-control {
    border-radius: 0.5rem;
    border: 1px solid rgba(37, 99, 235, 0.15);
    padding: 0.65rem 1rem;
}

#emailModal .form-control:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

#emailModal .modal-footer {
    border-top: 1px solid rgba(37, 99, 235, 0.1);
    padding: 1.25rem 1.5rem;
}

#emailModal .btn-primary {
    background: var(--brand);
    border-color: var(--brand);
    border-radius: 0.5rem;
    padding: 0.5rem 1.5rem;
    font-weight: 500;
}

#emailModal .btn-primary:hover {
    background: #1d4ed8;
    border-color: #1d4ed8;
}

#emailModal .btn-secondary {
    border-radius: 0.5rem;
    padding: 0.5rem 1.5rem;
    font-weight: 500;
}

/* ============================================
   微信二维码对话框样式
   ============================================ */
#wechatModal .modal-content {
    border: none;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

#wechatModal .modal-header {
    border-bottom: 1px solid rgba(37, 99, 235, 0.1);
    padding: 1.25rem 1.5rem;
    justify-content: center;
}

#wechatModal .modal-title {
    font-weight: 600;
    color: #1E40AF;
    font-size: 1.1rem;
}

#wechatModal .btn-close {
    position: absolute;
    right: 1.25rem;
}

#wechatModal .modal-body {
    padding: 1.5rem;
}

.wechat-qr-img {
    width: 180px;
    height: 180px;
    object-fit: contain;
    border-radius: 0.5rem;
    border: 1px solid rgba(37, 99, 235, 0.1);
    padding: 0.5rem;
    background: #fff;
}

.wechat-qr-tip {
    color: #6b7280;
    font-size: 0.85rem;
}