* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
}

body {
    font-family: 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #2F3133;
    background: #F8FBFF;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(248, 251, 255, 0.55);
    backdrop-filter: blur(10px) saturate(160%);
    -webkit-backdrop-filter: blur(10px) saturate(160%);
    z-index: 1000;
    padding: 16px 0;
    border-bottom: 1px solid transparent;
    transition: padding 0.4s cubic-bezier(0.16, 1, 0.3, 1),
        background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.navbar.scrolled {
    padding: 9px 0;
    background: rgba(255, 255, 255, 0.82);
    border-bottom-color: rgba(24, 162, 242, 0.12);
    box-shadow: 0 8px 30px rgba(20, 68, 153, 0.07);
}


.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo img {
    height: 40px;
    cursor: pointer;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    text-decoration: none;
    color: #2F3133;
    font-size: 16px;
    font-weight: 400;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #18A2F2;
}

/* 汉堡按钮（移动端） */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    margin: 0 auto;
    border-radius: 2px;
    background: #1755b5;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.navbar.nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navbar.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
}

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

@media (max-width: 960px) {
    .nav-toggle {
        display: flex;
        position: relative;
        z-index: 1002;
        flex: 0 0 42px;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        padding: 8px 20px 16px;
        background: rgba(255, 255, 255, 0.96);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        box-shadow: 0 16px 36px rgba(20, 68, 153, 0.12);
        border-top: 1px solid rgba(24, 162, 242, 0.12);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
    }

    .navbar.nav-open .nav-menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        padding: 14px 4px;
        font-size: 17px;
        border-bottom: 1px solid rgba(24, 162, 242, 0.08);
    }
}

.white {
    color: white !important;
}

.black {
    color: #2F3133 !important;
}

/* ===== 主横幅 Hero ===== */
.hero {
    position: relative;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    overflow: hidden;
    color: #0b1f3a;
    isolation: isolate;
}

/* 氛围背景 */
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background:
        radial-gradient(120% 90% at 82% 8%, #e9f3ff 0%, rgba(233, 243, 255, 0) 55%),
        linear-gradient(180deg, #f3f8ff 0%, #f8fbff 58%, #ffffff 100%);
}

.hero-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(64px);
    will-change: transform;
}

.blob-1 {
    width: 540px;
    height: 540px;
    top: -130px;
    right: -70px;
    background: radial-gradient(circle at 32% 30%, #a9d6ff, #18a2f2 72%);
    opacity: 0.38;
}

.blob-2 {
    width: 430px;
    height: 430px;
    bottom: -150px;
    right: 24%;
    background: radial-gradient(circle at 40% 40%, #c2ecdf, #5ec9ff 72%);
    opacity: 0.3;
}

.blob-3 {
    width: 380px;
    height: 380px;
    top: 28%;
    left: -130px;
    background: radial-gradient(circle at 50% 50%, #d3e3ff, #1755b5 82%);
    opacity: 0.16;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(24, 162, 242, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(24, 162, 242, 0.05) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: radial-gradient(120% 80% at 72% 18%, #000 0%, transparent 68%);
    mask-image: radial-gradient(120% 80% at 72% 18%, #000 0%, transparent 68%);
}

.hero-inner {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 96px 24px 48px;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 48px;
    perspective: 1100px;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 0.3em;
    font-weight: 600;
    color: #1755b5;
    margin-bottom: 24px;
    padding: 7px 16px;
    border-radius: 999px;
    background: rgba(24, 162, 242, 0.08);
    border: 1px solid rgba(24, 162, 242, 0.18);
}

.hero-title {
    font-size: clamp(36px, 4.6vw, 66px);
    font-weight: 700;
    line-height: 1.16;
    letter-spacing: -0.01em;
    color: #0b1f3a;
    margin: 0 0 28px;
}

.hero-title .line {
    display: block;
    overflow: hidden;
    padding-bottom: 0.06em;
}

.hero-title .line-inner {
    display: inline-block;
    white-space: nowrap;
}

.hero-title .grad {
    font-style: normal;
    background: linear-gradient(100deg, #18a2f2 0%, #1755b5 92%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    margin-right: 0.12em;
}

.hero-sub {
    font-size: clamp(16px, 1.35vw, 19px);
    line-height: 1.75;
    color: #5b6b7d;
    max-width: 30em;
    margin: 0 0 38px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 54px;
    padding: 0 32px;
    border-radius: 999px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
        box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.btn-primary {
    color: #fff;
    background: linear-gradient(100deg, #18a2f2, #1755b5);
    box-shadow: 0 10px 26px rgba(23, 85, 181, 0.28);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(23, 85, 181, 0.36);
}

.btn-primary:active {
    transform: translateY(0) scale(0.985);
}

.btn-ghost {
    color: #1755b5;
    background: rgba(255, 255, 255, 0.6);
    border: 1.5px solid rgba(24, 162, 242, 0.4);
}

.btn-ghost:hover {
    transform: translateY(-2px);
    background: #fff;
    border-color: #18a2f2;
    box-shadow: 0 10px 24px rgba(24, 162, 242, 0.16);
}

.btn-ghost:active {
    transform: translateY(0) scale(0.985);
}

/* 主视觉 3D 标识 */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 440px;
}

.hero-canvas {
    position: absolute;
    inset: 0;
    z-index: 3;
    width: 100%;
    height: 100%;
    display: block;
    cursor: grab;
}

.hero-canvas:active {
    cursor: grabbing;
}

.hero-mark {
    position: relative;
    z-index: 2;
    width: min(74%, 400px);
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 30px 60px rgba(23, 85, 181, 0.28));
    will-change: transform;
}

.hero-visual-glow {
    position: absolute;
    z-index: 1;
    width: 72%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(24, 162, 242, 0.42) 0%, rgba(24, 162, 242, 0) 68%);
    filter: blur(18px);
    will-change: transform, opacity;
}

.hero-visual-ring {
    position: absolute;
    z-index: 1;
    width: 80%;
    aspect-ratio: 1;
    border-radius: 50%;
    border: 1px dashed rgba(24, 162, 242, 0.28);
    will-change: transform;
}

@media (max-width: 960px) {
    .hero {
        min-height: auto;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        gap: 28px;
        padding: 96px 20px 56px;
        text-align: center;
    }

    .hero-eyebrow {
        margin-bottom: 18px;
    }

    .hero-sub {
        max-width: 100%;
        margin-inline: auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        min-height: 240px;
    }

    .hero-mark {
        width: min(52%, 220px);
    }
}

@media (max-width: 480px) {
    .hero-cta {
        width: 100%;
    }

    .hero-cta .btn {
        flex: 1;
        padding: 0 18px;
    }
}

/* 统计数据 */
.stats {
    padding: 0;
    margin-top: -110px;
    position: relative;
    z-index: 10;
}

.stats-container {
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(16px) saturate(160%);
    -webkit-backdrop-filter: blur(16px) saturate(160%);
    border-radius: 24px;
    box-shadow: 0 24px 60px rgba(20, 68, 153, 0.12);
    padding: 52px 40px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
    max-width: 1280px;
    margin: 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.7);
}

.stat-item {
    position: relative;
    padding: 20px 0;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 2px;
    height: 60px;
    background: linear-gradient(90deg, #18A2F2 0%, #1755B5 100%);
    /*background: linear-gradient(to bottom, transparent, #E0E0E0, transparent);*/
}

.stat-item h3 {
    font-size: 44px;
    font-weight: 700;
    background: linear-gradient(135deg, #18A2F2, #1755B5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
    line-height: 1;
    opacity: 1;
    font-variant-numeric: tabular-nums;
}

.stat-item p {
    font-size: 16px;
    color: #666;
    font-weight: 400;
    margin: 0;
    opacity: 1;
}

/* 关于我们 */
.about {
    padding: 100px 0 0 0;
    text-align: center;
    background: url('https://obsqingnang.guoyaoplat.com/guanwang/images/cycle.svg') no-repeat center center;
    background-size: contain;
    position: relative;
}

.about h2 {
    font-size: 40px;
    font-weight: 600;
    /*background: linear-gradient(to right, #18A2F2, #1755B5);*/
    color: #1755B5;
    /*-webkit-background-clip: text;*/
    /*-webkit-text-fill-color: transparent;*/
    margin-bottom: 30px;
}

.about-description {
    font-size: 20px;
    color: #8D9094;
    max-width: 1013px;
    margin: 0 auto 60px;
    line-height: 1.5;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(305px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.feature-card {
    /* background: #FFFFFF; */
    border-radius: 20px;
    /* padding: 40px 20px; */
    text-align: center;
    /* box-shadow: 0px 12px 32px rgba(153, 172, 255, 0.14); */
}

.feature-card:hover {
    backdrop-filter: blur(2px);
    box-shadow: 0px 12px 32px rgba(153, 172, 255, 0.14);
    transition: all .3s;
}

.feature-icon {
    width: 150px;
    height: 150px;
    margin: 0 auto 20px;
    /*background: #f0f0f0;*/
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon img {
    width: 100%;
    height: 100%;
}

.feature-card h3 {
    font-size: 32px;
    font-weight: 600;
    background: linear-gradient(to right, #18A2F2, #1755B5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 20px;
}

.feature-card p {
    font-size: 16px;
    color: #8D9094;
    line-height: 1.5;
    margin: 0 14px 48px;
}

#aptitude {
    background: url(https://obsqingnang.guoyaoplat.com/guanwang/images/Group.svg) no-repeat center center;
    background-size: contain;
}

/* 资质认证 */
.aptitude {
    padding: 100px 0 0 0;
    background: url("https://obsqingnang.guoyaoplat.com/guanwang/images/Layer1.png") no-repeat center center;
    background-size: contain;
    background-attachment: scroll;
    position: relative;
    min-height: 600px;
}

.aptitude h2 {
    font-size: 40px;
    font-weight: 600;
    /*color: white;*/
    color: #1755B5;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 30px;
    max-width: 1300px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* 最后三个证书居中展示 */
.certificates-grid-center {
    display: grid;
    grid-template-columns: repeat(3, minmax(190px, 1fr));
    gap: 30px;
    max-width: 800px;
    margin: 30px auto 0;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.certificate-card {
    /*background: #ffffff;*/
    border-radius: 15px;
    /*padding: 20px 20px 15px 20px;*/
    box-shadow: 0px 8px 24px rgba(24, 162, 242, 0.1);
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

/* 证书图片容器 */
.certificate-image-container {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    height: 100%;
}

.certificate-card:hover {
    transform: translateY(-5px);
    box-shadow: 0px 12px 32px rgba(24, 162, 242, 0.2);
}

.certificate-card img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.certificate-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(24, 162, 242, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 15px;
}

.certificate-card:hover .certificate-overlay {
    opacity: 1;
}

.view-text {
    color: white;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
}

/* 底部蓝色半透明遮罩 */
.certificate-overlay-bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(24, 162, 242, 0.9) 0%, rgba(24, 162, 242, 0.7) 50%, transparent 100%);
    padding: 15px 10px 10px;
    border-radius: 0 0 10px 10px;
}

.certificate-text {
    color: white;
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    display: block;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.certificate-title {
    margin-top: 15px;
    font-size: 16px;
    font-weight: 600;
    color: #1755B5;
    text-align: center;
    line-height: 1.4;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    position: relative;
    margin: 5% auto;
    padding: 0;
    width: 90%;
    max-width: 800px;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    animation: slideIn 0.3s ease;
}

.modal-content img {
    width: 100%;
    height: auto;
    display: block;
}

.close {
    position: absolute;
    top: 15px;
    right: 25px;
    color: white;
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

.close:hover {
    background: rgba(0, 0, 0, 0.8);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }

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

/* 解决方案轮播 */
.solutions {
    padding: 100px 0 0 0;
    text-align: center;
    background: linear-gradient(180deg, rgba(235, 245, 255, 0) 0%, rgba(225, 240, 255, 1) 50%, rgba(255, 255, 255, 0) 100%);
}

.solutions h2 {
    font-size: 40px;
    font-weight: 600;
    /*background: linear-gradient(to right, #18A2F2, #1755B5);*/
    /*-webkit-background-clip: text;*/
    /*-webkit-text-fill-color: transparent;*/
    margin-bottom: 60px;
    color: #1755B5;
}

.carousel-container {
    position: relative;
    max-width: 1280px;
    margin: 0 auto;
}

.carousel {
    position: relative;
    overflow: hidden;
}

.carousel-inner {
    display: flex;
    transition: transform 0.5s ease;
}

.carousel-item {
    min-width: 100%;
    display: flex;
    justify-content: space-between;
    gap: 30px;
    padding: 0 20px;
}

/* 解决方案卡片样式 */
.solution-card {
    /* background: linear-gradient(135deg, rgba(24, 162, 242, 0.1) 0%, rgba(23, 85, 181, 0.15) 100%); */
    background: rgba(255, 255, 255, 0.30);
    /* background-color: #fff; */
    border-radius: 20px;
    padding: 0;
    text-align: center;
    box-shadow: 0px 8px 24px rgba(24, 162, 242, 0.15);
    backdrop-filter: blur(10px);
    /* border: 1px solid rgba(255, 255, 255, 0.2); */
    transition: all 0.3s ease;
    flex: 1;
    max-width: 380px;
    min-height: 532px;
    display: flex;
    flex-direction: column;
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: 0px 12px 32px rgba(24, 162, 242, 0.25);
}

.solution-card-image {
    width: 100%;
    height: 200px;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 25px;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.solution-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
}

.solution-card-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: #1755B5;
    margin-bottom: 15px;
    line-height: 1.3;
}

.solution-card-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    text-align: left;
    margin: 0 1em;
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(24, 162, 242, 0.3);
    cursor: pointer;
    transition: all 0.3s;
}

.indicator.active {
    background: linear-gradient(to right, #18A2F2, #1755B5);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    filter: drop-shadow(0 1.851px 7.404px rgba(0, 0, 0, 0.12));
    border-radius: 50%;
    background: #fff;
    /* background: #FFFFFF;
    border: none; */
    /* width: 50px; */
    /* height: 50px; */
    /* border-radius: 50%;
    font-size: 24px;
    color: #18A2F2; */
    cursor: pointer;
    /* box-shadow: 0px 4px 12px rgba(24, 162, 242, 0.2); */
    /* transition: all 0.3s; */
    z-index: 10;
}

/* .carousel-btn:hover {
    background: #18A2F2;
    color: white;
    box-shadow: 0px 6px 16px rgba(24, 162, 242, 0.3);
} */

.carousel-btn.prev {
    left: -10px;
}

.carousel-btn.next {
    right: -10px;
}

/* OTC轮播保持原有样式 */
#otcCarousel .carousel-item {
    display: flex;
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(4px);
    border-radius: 20px;
    box-shadow: 0px 12px 32px rgba(153, 172, 255, 0.14);
    overflow: hidden;
}

#otcCarousel .carousel-content {
    flex: 1;
    padding: 60px 40px;
    text-align: left;
}

#otcCarousel .carousel-content h3 {
    font-size: 24px;
    font-weight: 600;
    background: linear-gradient(to right, #18A2F2, #1755B5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 30px;
}

#otcCarousel .carousel-content p {
    font-size: 16px;
    color: #8D9094;
    line-height: 1.5;
}

#otcCarousel .carousel-image {
    flex: 3;
    background-size: cover;
    background-position: center;
    min-height: 400px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#otcCarousel .carousel-image img {
    width: 90%;
    height: 90%;
    border-radius: 20px;
}

/* OTC轮播区域 */
.otc-section {
    padding: 50px 0 0 0;
}

.otc-carousel .carousel-item {
    background: rgba(255, 255, 255, 0.3);
}




/* 响应式设计 */
@media (max-width: 768px) {

    .hero-content h1,
    .hero-content h2,
    .hero-content h3 {
        font-size: 36px;
    }

    .hero-content .suffix {
        line-height: 1.5em;
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        padding: 36px 24px;
    }

    .stat-item h3 {
        font-size: 30px;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .news-card {
        flex-direction: column;
    }

    .news-card img {
        width: 100%;
        height: 200px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .carousel-btn {
        display: none;
    }

    .solution-card {
        max-width: 100%;
        min-height: 350px;
        padding: 0;
        background: rgba(255, 255, 255, 0.30);
        box-shadow: 0 12px 32px 0 rgba(153, 172, 255, 0.14);
        backdrop-filter: blur(2px);
    }

    .solution-card-image {
        height: 150px;
        margin-bottom: 20px;
    }

    .solution-card-content h3 {
        font-size: 18px;
        margin-bottom: 12px;
    }

    .solution-card-content p {
        font-size: 13px;
    }

    .certificates-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        padding: 0 20px;
    }

    .certificates-grid-center {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        padding: 0 20px;
        max-width: 100%;
    }

    .certificate-card {
        padding: 15px 15px 12px 15px;
    }

    .certificate-title {
        font-size: 14px;
        margin-top: 12px;
        min-height: 40px;
    }

    .aptitude h2 {
        font-size: 32px;
        margin-bottom: 40px;
    }
}

/* 轮播特定样式 */
.solutions-carousel .carousel-item {
    min-height: auto;
}

.otc-carousel .carousel-item {
    min-height: 500px;
}

.contact {
    background: #0D185C;
}

/* ===== 滚动叙事增强 ===== */

/* 顶部滚动进度条 */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 100%;
    z-index: 1100;
    transform: scaleX(0);
    transform-origin: 0 50%;
    background: linear-gradient(90deg, #18a2f2, #1755b5);
    will-change: transform;
}

/* 关于我们：逐字点亮的字符 */
.about-description .char {
    color: #46566a;
}

/* 章节标题揭示初始态（JS 接管，无 JS 时正常显示） */
.js-motion .about h2,
.js-motion .solutions h2,
.js-motion .news h2,
.js-motion .contact h2,
.js-motion .aptitude h2 {
    will-change: clip-path, transform;
}

/* ===== 解决方案：横向滚动展示 ===== */
.showcase {
    position: relative;
    background: linear-gradient(180deg, #ffffff 0%, #ecf5ff 52%, #ffffff 100%);
    padding: 96px 0;
    overflow-x: hidden;
}

.showcase.pan-active {
    height: 100dvh;
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.showcase-header {
    text-align: center;
    padding: 0 24px;
    margin-bottom: 44px;
}

.showcase h2 {
    font-size: 40px;
    font-weight: 600;
    color: #1755b5;
    margin: 0 0 14px;
}

.showcase-sub {
    font-size: 16px;
    color: #8d9094;
    margin: 0 auto;
    max-width: 32em;
    line-height: 1.6;
}

.showcase-progress {
    width: 140px;
    height: 4px;
    border-radius: 999px;
    background: rgba(24, 162, 242, 0.16);
    margin: 26px auto 0;
    overflow: hidden;
}

.showcase-progress span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #18a2f2, #1755b5);
    transform-origin: 0 50%;
    transform: scaleX(0.06);
}

.showcase-track {
    display: flex;
    gap: 28px;
    padding: 14px 6vw 24px;
    align-items: stretch;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.showcase.pan-active .showcase-track {
    overflow: visible;
    flex: 0 0 auto;
    scroll-snap-type: none;
}

.showcase-card {
    flex: 0 0 clamp(290px, 30vw, 400px);
    scroll-snap-align: center;
    background: #fff;
    border-radius: 22px;
    box-shadow: 0 18px 44px rgba(24, 162, 242, 0.12);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(24, 162, 242, 0.08);
    will-change: transform, opacity;
}

.showcase-card-link {
    display: flex;
    flex: 1;
    flex-direction: column;
    min-height: 100%;
    color: inherit;
    text-decoration: none;
}

.showcase-card-media {
    height: 226px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.showcase-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.showcase-card-body {
    padding: 26px 26px 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex: 1;
}

.showcase-card-body h3 {
    font-size: 21px;
    font-weight: 600;
    color: #1755b5;
    line-height: 1.3;
    margin: 0;
}

.showcase-card-body p {
    font-size: 14px;
    line-height: 1.7;
    color: #6b7785;
    margin: 0;
    flex: 1;
}

.showcase-card-action,
.contact-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 18px;
    border-radius: 8px;
    background: linear-gradient(90deg, #18a2f2 0%, #1755b5 100%);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.showcase-card-action {
    align-self: flex-start;
    margin-top: 8px;
}

.showcase-card-link:hover .showcase-card-action,
.contact-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(24, 162, 242, 0.25);
}

@media (max-width: 960px) {
    .showcase {
        padding: 64px 0;
    }

    .showcase h2 {
        font-size: 30px;
    }

    .showcase-track {
        gap: 18px;
        padding: 12px 20px 24px;
    }

    .showcase-card {
        flex-basis: 80vw;
    }

    .showcase-progress {
        display: none;
    }
}

/* ===== 收尾细节打磨 ===== */

/* 章节标题统一的渐变下划线 */
.about h2,
.aptitude h2,
.news h2,
.contact h2 {
    position: relative;
}

.about h2::after,
.aptitude h2::after,
.news h2::after,
.contact h2::after {
    content: "";
    display: block;
    width: 54px;
    height: 4px;
    margin: 18px auto 0;
    border-radius: 999px;
    background: linear-gradient(90deg, #18a2f2, #1755b5);
}

/* 解决方案卡片：按平台着色的顶部细条 + 悬停加深 */
.showcase-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    z-index: 2;
    background: var(--card-grad, linear-gradient(90deg, #18a2f2, #1755b5));
}

.showcase-card {
    position: relative;
    transition: box-shadow 0.4s ease;
}

.showcase-card:hover {
    box-shadow: 0 26px 60px rgba(24, 162, 242, 0.22);
}

/* 键盘可见焦点环 */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
    outline: 3px solid rgba(24, 162, 242, 0.55);
    outline-offset: 3px;
    border-radius: 8px;
}

/* 降低透明度偏好：玻璃面改为实底，保证对比度 */
@media (prefers-reduced-transparency: reduce) {
    .navbar {
        background: rgba(248, 251, 255, 0.97);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    .navbar.scrolled {
        background: #ffffff;
    }

    .stats-container {
        background: rgba(255, 255, 255, 0.97);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }
}