/* ================= 全局重置与基础布局 ================= */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;900&display=swap');

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 60px;
}

body {
    font-family: 'Inter', "Microsoft YaHei", "PingFang SC", sans-serif;
    background: linear-gradient(180deg, #f0f4f8 0%, #e8edf5 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding: 0;
    gap: 0;
    padding-bottom: 0;
    color: #333;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ================= 现代网页滚动条 ================= */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f2f5fa;
}
::-webkit-scrollbar-thumb {
    background: #c3d5eb;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #99badf;
}

/* 海报容器 - 现代化网页区块 */
.poster-container {
    flex-shrink: 0;
    margin-top: 0;
    position: relative;
    width: 100%;
    max-width: 100%;
    aspect-ratio: auto;
    background-color: #ffffff;
    overflow: hidden;
    border-radius: 0;
    box-shadow: none;
    padding: 80px 0;
}
.poster-container:nth-child(even) {
    background: linear-gradient(180deg, #f5f8fc 0%, #edf2f8 100%);
}
.poster-container:nth-child(odd) {
    background-color: #ffffff;
}

/* 封面地球巨幕 */
.poster-container:first-of-type {
    min-height: 100vh;
    padding-top: 0;
    padding-bottom: 0; /* 深度清除全站通用的默认下边距，防止绝对定位被顶出可视区 */
    /* 改回绝对居中展示地球全貌 */
    background: #000 url('http://183.6.57.239:49000/tewatech/assets/png/earth_1.jpg') center center / cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 区块分隔装饰线 */
.poster-container::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #4da9e8, transparent);
    border-radius: 2px;
}
.poster-container:last-child::after {
    display: none;
}

/* 隐藏 A4 底纹 */
.bg-shape-top, .bg-shape-bottom {
    display: none !important;
}

/* ================= 通用内容层 ================= */
.content {
    position: relative;
    display: flex;
    flex-direction: column;
    max-width: 1100px;
    margin: 0 auto;
    width: 90%;
}

/* ================= 通用 Logo ================= */
.logo-area {
    padding: 30px 40px;
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
}

.logo-img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.logo-text {
    color: #e11d48;
    font-weight: bold;
    font-size: 16px;
    margin-top: 8px;
    margin-left: -2px;
    font-family: Arial, sans-serif;
    letter-spacing: 1px;
}


/* ================= 封面巨幕 ================= */
.poster-container:first-of-type .content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center; /* 恢复为正中靶心对其，填补画面空间 */
    padding-top: 0;
    min-height: 100vh;
    text-align: center;
}

.hero-title {
    font-size: clamp(48px, 6.5vw, 76px); /* 大幅增加字号，撑起排版 */
    font-weight: 900;
    color: #ffffff;
    letter-spacing: 12px;
    text-shadow: 0 8px 30px rgba(0, 0, 0, 0.8);
    margin-bottom: 25px;
    animation: fadeInUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.2s;
    opacity: 0;
    line-height: 1.4;
}

.hero-subtitle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    font-size: clamp(22px, 3vw, 36px); 
    color: #e2e8f0;
    letter-spacing: 16px; 
    margin-bottom: 20px; /* 缩小下边距以免和下方描述脱节 */
    text-shadow: 0 4px 15px rgba(0, 0, 0, 0.8);
    font-weight: 500;
    animation: fadeInUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.4s;
    opacity: 0;
}

.hero-subtitle::before, .hero-subtitle::after {
    content: '';
    display: block;
    width: 80px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(79, 172, 254, 0.8), transparent);
}

.hero-desc {
    font-size: clamp(16px, 1.8vw, 22px);
    color: #cbd5e1;
    letter-spacing: 4px;
    margin-bottom: 45px;
    text-shadow: 0 4px 15px rgba(0, 0, 0, 0.9);
    font-weight: 400;
    animation: fadeInUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.5s;
    opacity: 0;
    max-width: 800px;
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(30, 136, 229, 0.85);
    backdrop-filter: blur(10px);
    color: #fff;
    font-size: 20px;
    font-weight: bold;
    padding: 16px 55px; /* 加大按钮厚实度 */
    border-radius: 50px; /* 药丸按钮更加优雅高科技 */
    text-decoration: none;
    border: 1px solid rgba(255,255,255,0.3);
    transition: all 0.3s ease;
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.6s;
    opacity: 0;
    letter-spacing: 2px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.5);
}

.hero-btn:hover {
    background: rgba(30, 136, 229, 1);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.8);
}

/* ================= 辅助修饰：填衬空旷感 ================= */
.hero-subtitle .bracket {
    color: #4da9e8;
    opacity: 0.5;
    margin: 0 10px;
    font-weight: 300;
}

.hero-btn .arrow {
    margin-left: 8px;
    display: inline-block;
    transition: transform 0.3s ease;
}
.hero-btn:hover .arrow {
    transform: translateX(6px);
}

.hero-bottom-bar {
    position: absolute;
    bottom: 4vh; /* 使用自适应高度而非固定像素 */
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1000px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 25px;
    z-index: 10;
    pointer-events: none;
}

.hero-stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap; /* 允许溢出时自动折行，实现完美自适应 */
    gap: 15px 40px;
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards 1s;
    opacity: 0;
}

.stat-item {
    display: flex;
    align-items: center;
    color: #e2e8f0;
    font-size: 18px; /* 字体显著放大 */
    letter-spacing: 3px;
    font-weight: 500;
}

.stat-item .dot {
    width: 12px; /* 圆点放大 */
    height: 12px;
    border-radius: 50%;
    margin-right: 16px;
    box-shadow: 0 0 15px currentColor; 
}

.point-blue { background: #3b82f6; color: #3b82f6; }
.point-cyan { background: #06b6d4; color: #06b6d4; }
.point-purple { background: #8b5cf6; color: #8b5cf6; }
.point-orange { background: #f97316; color: #f97316; }

.scroll-prompt {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    animation: fadeInUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards 1.2s;
    opacity: 0;
}

.scroll-prompt span {
    font-size: 14px; /* 滚动提示字号放大 */
    letter-spacing: 4px;
    color: #94a3b8;
    font-weight: 600;
}

.mouse-icon {
    width: 32px; /* 鼠标大一点 */
    height: 50px;
    border: 3px solid #94a3b8;
    border-radius: 16px;
    position: relative;
    display: flex;
    justify-content: center;
}
.wheel {
    width: 5px; /* 滚轮大一点 */
    height: 10px;
    background: #94a3b8;
    border-radius: 3px;
    margin-top: 10px;
    animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
    0% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(12px); opacity: 0; }
    100% { transform: translateY(0); opacity: 0; }
}

@keyframes shimmerText {
    0% { background-position: 0% 50%; }
    100% { background-position: 300% 50%; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
        filter: blur(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

/* ================= 顶部固定导航栏 ================= */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    height: 64px;
    background: rgba(10, 22, 40, 0.88);
    backdrop-filter: blur(20px) saturate(1.8);
    -webkit-backdrop-filter: blur(20px) saturate(1.8);
    box-shadow: 0 1px 30px rgba(0, 0, 0, 0.15);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.nav-brand-text {
    font-size: 20px;
    font-weight: 900;
    color: #ffffff;
    letter-spacing: 3px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link {
    text-decoration: none;
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    white-space: nowrap;
    position: relative;
}

.nav-link:hover {
    color: #ffffff;
    background: rgba(77, 169, 232, 0.2);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 20px;
    height: 2px;
    background: #4da9e8;
    border-radius: 1px;
    transition: transform 0.3s ease;
}
.nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.nav-hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: #ffffff;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-hamburger.active span:nth-child(2) {
    opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ================= 现代分栏图文交错布局 (类似大厂官网) ================= */
.modern-split {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
    width: 100%;
    margin: 40px 0;
}

.modern-split.reverse {
    flex-direction: row-reverse;
}

.modern-split-content {
    flex: 1.1; 
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.modern-split-content h3 {
    font-size: 28px;
    font-weight: 900;
    color: #0f2b4d;
    margin-bottom: 20px;
    line-height: 1.4;
}

.modern-split-img {
    flex: 0.9;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.modern-split-img img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.modern-split-img::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(77, 169, 232, 0.2) 0%, rgba(43, 122, 183, 0.05) 100%);
    border-radius: 16px;
    z-index: -1;
    transition: all 0.5s ease;
}

.modern-split.reverse .modern-split-img::before {
    left: 20px;
}

.modern-split-img:hover img {
    transform: translateY(-8px) scale(1.02);
}

.modern-split-img:hover::before {
    transform: translate(8px, 8px);
}

/* ================= 公司简介 ================= */
.page-3 {
    background-color: #ffffff;
    position: relative;
}

.p3-header {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 45px;
    z-index: 2;
}

.p3-logo-area {
    position: absolute;
    left: 50px;
    top: 25px;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    transform: scale(0.9);
    transform-origin: top left;
}

.p3-title {
    font-size: 42px;
    font-weight: 900;
    color: #0f2b4d;
    letter-spacing: 4px;
    position: relative;
}
.p3-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #4da9e8, #6dd5ed);
    border-radius: 2px;
    margin: 12px auto 0;
}

.p3-content-area {
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 30px 60px 0 60px;
}

.p3-paragraph {
    font-size: 17px;
    line-height: 2.2;
    color: #333;
    text-indent: 2em;
    margin-bottom: 20px;
    text-align: justify;
}

.p3-highlight {
    color: #0d2966;
    font-weight: 900;
    font-size: 19px;
}

.p3-subtitle {
    font-size: 26px;
    font-weight: 900;
    color: #e11d48;
    margin-top: 15px;
    margin-bottom: 25px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.1);
    letter-spacing: 2px;
}

.p3-list {
    list-style: none;
    padding-left: 20px;
}

.p3-list-item {
    font-size: 17px;
    line-height: 1.8;
    color: #333;
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.p3-bullet {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, #ffffff, #66b5f0, #144f85);
    flex-shrink: 0;
    margin-top: 6px;
    box-shadow: 1px 1px 4px rgba(0, 0, 0, 0.25);
}

.p3-image-wrapper {
    width: 45%;
    margin: 25px 0 40px auto;
    position: relative;
}

.p3-image-main {
    width: 100%;
    display: block;
    position: relative;
    z-index: 2;
}

/* ================= 通用内页头部（第三页及以后复用） ================= */
.page-header {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 45px;
    z-index: 2;
}

.page-header-logo {
    position: absolute;
    left: 50px;
    top: 25px;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    transform: scale(0.9);
    transform-origin: top left;
}

.page-header-title {
    font-size: 42px;
    font-weight: 900;
    color: #0d2966;
    letter-spacing: 4px;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.1);
}

/* ================= 资质及专利 ================= */
.p4-content-area {
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 25px 50px 0 50px;
}

.p4-section-title {
    font-size: 22px;
    font-weight: 900;
    color: #0d6eb5;
    margin-bottom: 18px;
    letter-spacing: 1px;
}

.p4-cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}

.p4-cert-grid img {
    width: 100%;
    height: auto;
    display: block;
    border: 2px solid #e8e8e8;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease;
}

.p4-cert-grid img:hover {
    transform: scale(1.03);
}

.p4-bottom-section {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-top: auto;
    margin-bottom: 60px;
}

.p4-bottom-images {
    position: relative;
    width: 45%;
    height: 220px;
    flex-shrink: 0;
}

.p4-bottom-images img {
    position: absolute;
    width: 55%;
    height: auto;
    border: 2px solid #e0e0e0;
    border-radius: 4px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
}

.p4-bottom-images img:nth-child(1) {
    top: 0;
    left: 0;
    z-index: 3;
}

.p4-bottom-images img:nth-child(2) {
    top: 15px;
    left: 22%;
    z-index: 2;
}

.p4-bottom-images img:nth-child(3) {
    top: 30px;
    left: 44%;
    z-index: 1;
}

.p4-bottom-info {
    flex: 1;
}

.p4-bottom-info-title {
    font-size: 24px;
    font-weight: 900;
    color: #0d6eb5;
    margin-bottom: 12px;
}

.p4-bottom-info-item {
    font-size: 15px;
    line-height: 2;
    color: #333;
}

.p4-bottom-info-item .label {
    color: #0d6eb5;
    font-weight: 600;
}

.p4-bottom-info-item .dot {
    color: #4da9e8;
    margin-right: 5px;
}

/* ================= 技术特色 ================= */
.p5-content-area {
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 25px 55px 0 55px;
}

.p5-section-title {
    font-size: 22px;
    font-weight: 900;
    color: #0d6eb5;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.p5-tech-list {
    list-style: none;
    padding: 0;
    margin-bottom: 20px;
}

.p5-tech-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 14px;
    font-size: 17px;
    color: #333;
    line-height: 1.6;
}

.p5-tech-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #4da9e8, #2b7ab7);
    color: #ffffff;
    border: none;
    font-size: 15px;
    font-weight: 700;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    font-family: 'Inter', Arial, sans-serif;
    box-shadow: 0 3px 10px rgba(77, 169, 232, 0.3);
}

.p5-arch-image {
    width: 65%;
    margin: auto auto 30px auto;
}

.p5-arch-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* ================= 核心产品 ================= */
.p6-content-area {
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px 55px 0 55px;
}

.p6-section-subtitle {
    font-size: 26px;
    font-weight: 900;
    color: #e11d48;
    text-align: center;
    margin-bottom: 25px;
    letter-spacing: 2px;
}

.p6-paragraph {
    font-size: 16px;
    line-height: 2.2;
    color: #333;
    margin-bottom: 25px;
    text-align: justify;
}

.p6-paragraph-indent {
    text-indent: 2em;
}

.p6-highlight-blue {
    color: #0d6eb5;
    font-weight: 900;
}

.p6-arch-image {
    width: 95%;
    margin: 0 auto 25px auto;
}

.p6-arch-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

/* ================= 核心产品 (二) ================= */
.p7-content-area {
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px 50px 0 50px;
}

.p7-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 5px;
    margin-bottom: 40px;
}

.p7-card {
    display: flex;
    flex-direction: column;
    width: 100%;
    min-width: 0;
    justify-self: stretch;
    cursor: pointer;
}

.p7-title-container {
    display: flex;
    width: 100%;
    height: 38px;
    margin-bottom: 12px;
}

.p7-title-num {
    background-color: #0d6eb5;
    color: #ffffff;
    width: 50px;
    font-size: 20px;
    font-weight: 900;
    font-family: Arial, sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: skewX(-20deg);
    border: 2px solid #0d6eb5;
    margin-left: 10px;
    z-index: 2;
}

.p7-title-num span {
    transform: skewX(20deg);
}

.p7-title-text {
    flex: 1;
    border: 2px solid #0d6eb5;
    border-left: none;
    background-color: #ffffff;
    color: #333;
    font-size: 18px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: skewX(-20deg);
    margin-left: -5px; /* Overlap with number box */
    margin-right: 15px;
    letter-spacing: 1px;
}

.p7-title-text span {
    transform: skewX(20deg);
}

.p7-card-img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border: none;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.p7-card-img:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 15px 35px rgba(13, 110, 181, 0.15);
}

/* ================= 业务方案 (通用) ================= */
.solution-content-area {
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 10px 45px 0 45px;
}

.solution-subtitle {
    font-size: 24px;
    font-weight: 900;
    color: #e11d48;
    text-align: center;
    margin-bottom: 18px;
    letter-spacing: 1px;
}

.solution-top {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    align-items: center;
}

.solution-top.align-top {
    align-items: flex-start;
}

.solution-top-img {
    width: 53%;
    flex-shrink: 0;
}

.solution-top-img img {
    width: 100%;
    height: auto;
    border-radius: 2px;
}

.solution-top-text {
    font-size: 15px;
    font-weight: 900;
    color: #0d6eb5;
    line-height: 1.8;
    text-align: justify;
}

/* 列表容器与标签 */
.sol-single-col {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.sol-tag {
    display: inline-block;
    background: linear-gradient(90deg, #4da9e8, #2b7ab7);
    color: #ffffff;
    font-size: 16px;
    font-weight: bold;
    padding: 8px 18px;
    border-radius: 6px;
    margin-bottom: 12px;
    letter-spacing: 1px;
    box-shadow: 0 4px 12px rgba(77, 169, 232, 0.2);
}

.sol-list-paragraph {
    font-size: 15px;
    line-height: 1.8;
    color: #4a5568;
    margin-bottom: 15px;
    text-align: justify;
}

.sol-list-paragraph strong {
    color: #1a5e98;
    font-weight: 900;
}

/* 三列网格 (业务方案) 解决文字密集 */
.sol-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: minmax(140px, auto);
    gap: 30px;
    margin-top: 15px;
}
.sol-grid-item {
    display: flex;
    flex-direction: column;
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(13, 110, 181, 0.08);
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.3s ease;
    cursor: pointer;
}
.sol-grid-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(13, 110, 181, 0.12);
}
.sol-grid-tag {
    background: linear-gradient(90deg, #4da9e8, #2b7ab7);
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    padding: 12px 20px;
    letter-spacing: 1px;
}
.sol-grid-text {
    padding: 18px 20px 22px 20px;
    font-size: 14.5px;
    line-height: 1.8;
    color: #4a5568;
    text-align: justify;
}

/* ================= 业务方案/附加页 头部处理 ================= */
.page-header {
    display: flex;
    align-items: center;
    position: relative;
    justify-content: center;
    margin-bottom: 20px;
    width: 100%;
}

.page-header .page-header-logo, .p3-logo-area {
    display: none !important; /* 隐藏除了第一页封皮以外的页面级冗余红蓝Skywatch标志，现代网站有顶导即可 */
}

/* 现代版标题 */
.page-header-title {
    font-size: 36px;
    font-weight: 900;
    color: #0f2b4d;
    background: none;
    box-shadow: none;
    padding: 0;
    border-radius: 0;
    text-align: center;
    letter-spacing: 3px;
    position: relative;
    display: inline-block;
}
.page-header-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #4da9e8, #6dd5ed);
    border-radius: 2px;
    margin: 12px auto 0;
}

/* 现代版通长段落标题 */
.additional-title {
    font-size: 36px;
    font-weight: 900;
    color: #0f2b4d;
    text-align: center;
    margin-bottom: 50px;
    letter-spacing: 3px;
    position: relative;
}
.additional-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #4da9e8, #6dd5ed);
    border-radius: 2px;
    margin: 12px auto 0;
}

/* 专业模型与AI智能体 (4列网格) */
.p13-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    padding: 0;
    position: relative;
    z-index: 2;
    max-width: 1300px;
    margin: 0 auto;
    width: 92%;
    align-items: stretch;
}

.p13-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #ffffff;
    border-radius: 8px;
    border: 1px solid #f0f4f8;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.4s ease;
    overflow: hidden;
    cursor: pointer;
}
.p13-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(13, 110, 181, 0.12);
}

.p13-img {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.p13-img img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center top;
    transition: transform 0.4s ease;
}
.p13-img:hover img {
    transform: scale(1.02); /* 图片微微上抬变大 */
}
.p13-label {
    font-size: 16px;
    font-weight: 800;
    color: #111111;
    text-align: center;
    padding: 12px 10px;
    width: 100%;
    background-color: #ffffff;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
}

.p13-item-wide {
    grid-column: span 2;
}
.p13-item-wide-inner {
    display: flex;
    gap: 25px;
    width: 100%;
}
.p13-item-wide-inner .p13-img {
    flex: 1;
}

/* 智能感知识别：无人机与视频 (图文交错) */
.p14-container {
    padding: 0 35px;
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 1300px;
    margin: 0 auto;
    width: 92%;
}
.p14-row {
    display: flex;
    align-items: center;
    gap: 30px;
    padding: 25px;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.04);
    border: 1px solid rgba(13, 110, 181, 0.06);
    margin-bottom: 20px;
    transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.4s ease;
    cursor: pointer;
}
.p14-row:last-child {
    margin-bottom: 0;
}
.p14-row:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(22, 126, 201, 0.12);
}
.p14-row.reverse {
    flex-direction: row-reverse;
}
.p14-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.p14-tag {
    display: inline-block;
    background: linear-gradient(135deg, #0d6eb5, #4da9e8);
    color: #ffffff;
    font-size: 15px;
    font-weight: 900;
    padding: 6px 16px;
    border-radius: 30px;
    margin-bottom: 14px;
    box-shadow: 0 4px 10px rgba(13, 110, 181, 0.2);
    letter-spacing: 1px;
}
.p14-text {
    font-size: 14.5px;
    line-height: 1.8;
    color: #4a5568;
    text-align: justify;
}
.p14-img {
    flex: 1;
    height: 180px;
    width: 100%;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}
.p14-img img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.p14-row:hover .p14-img img {
    transform: scale(1.05); /* 结合父级上浮产生呼吸感图文交错 */
}

/* 物联监测与自动控制 */
.p16-container {
    padding: 0 35px;
    position: relative;
    z-index: 2;
    max-width: 1300px;
    margin: 0 auto;
    width: 92%;
}
.p16-section {
    margin-bottom: 20px;
}
.p16-section-title {
    font-size: 18px;
    font-weight: 900;
    color: #0d6eb5;
    margin-bottom: 15px;
    padding-left: 12px;
    border-left: 4px solid #0d6eb5;
}

.p16-sub-row {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}
.p16-sub-label {
    font-size: 16px;
    font-weight: 900;
    color: #d34a4a;
    width: 80px;
    flex-shrink: 0;
    text-align: center;
    padding: 6px 0;
    border-radius: 6px;
    margin-right: 15px;
}
.p16-items {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: flex-end;
    flex: 1;
}
.p16-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    width: 90px;
    padding: 8px 5px;
    background: #f8fbff;
    border-radius: 8px;
    border: 1px solid #e8f0fa;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.p16-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(13, 110, 181, 0.15);
}
.p16-item img {
    max-height: 80px;
    max-width: 100px;
    object-fit: contain;
    margin-bottom: 6px;
}
.p16-item span {
    font-size: 12px;
    color: #333;
    text-align: center;
    font-weight: 500;
    line-height: 1.3;
}

/* ================= 典型案例 ================= */
.p18-container {
    padding: 0 45px;
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}
.p18-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.p18-card {
    display: flex;
    flex-direction: column;
    border-radius: 10px;
    background: #fff;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.04);
    border: 1px solid #f0f0f0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}
.p18-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(16, 95, 169, 0.12);
}
.p18-card-title {
    background: linear-gradient(90deg, #3785ca, #59a6e4);
    color: #ffffff;
    font-size: 16px;
    font-weight: 900;
    padding: 8px 15px;
    letter-spacing: 1px;
}
.p18-card-img {
    width: 100%;
    overflow: hidden;
}
.p18-card-img img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.4s ease;
}
.p18-card:hover .p18-card-img img {
    transform: scale(1.02);
}
.p18-card ul {
    list-style: none;
    margin-top: 10px;
    padding-left: 0;
}
.p18-card li {
    font-size: 14px;
    color: #333;
    position: relative;
    padding-left: 18px;
    margin-bottom: 5px;
}
.p18-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 5px;
    width: 8px;
    height: 8px;
    background: radial-gradient(circle at 35% 35%, #94d0f7, #2475b8);
    border-radius: 50%;
    box-shadow: inset -1px -1px 2px rgba(0,0,0,0.2);
}

/* ================= 最后一页（现代深色页脚） ================= */
.p19-page {
    background: #0a111f !important; /* 现代科技感深暗色背景 */
    padding: 80px 0 60px 0 !important;
}
.p19-container {
    padding: 0 45px;
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.p19-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 25px;
}
.p19-logo-brand {
    font-size: 34px;
    font-weight: 900;
    color: #ffffff; /* 弃用刺眼的大红色，改用纯白 */
    letter-spacing: 2px;
}
.p19-logo-img {
    width: 55px;
    height: 55px;
    object-fit: contain;
}
.p19-shake {
    width: 100%;
    max-width: 800px;
    border-radius: 16px; /* 更为优雅的大圆角 */
    box-shadow: 0 15px 40px rgba(0,0,0,0.5);
    overflow: hidden;
    margin-bottom: 35px;
    transition: transform 0.3s ease;
}
.p19-shake:hover {
    transform: translateY(-5px);
}
.p19-shake img {
    width: 100%;
    display: block;
    object-fit: cover;
}
.p19-slogan {
    font-size: 20px;
    font-weight: normal;
    color: #94a3b8; /* 采用高级科技感灰蓝 */
    margin: 0 0 40px 0;
    letter-spacing: 2px;
    text-align: center;
}
.p19-qrs {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
}
.p19-qr {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #cbd5e1;
    font-size: 14px;
}
.p19-qr img {
    width: 120px;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    margin-bottom: 12px;
}
.p19-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}
.p19-link span {
    font-size: 16px;
    color: #cbd5e1;
}
.p19-footer-info {
    width: 100%;
    max-width: 700px;
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding-top: 35px;
    border-top: 1px solid rgba(255,255,255,0.08); /* 增加分割线提升层级感 */
}
.p19-footer-row {
    font-size: 14px;
    color: #cbd5e1;
    display: flex;
}
.p19-footer-label {
    width: 60px;
    letter-spacing: 2px;
    flex-shrink: 0;
    color: #64748b;
}