/* 全局样式重置与变量定义 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "思源黑体", "Inter", sans-serif;
}

:root {
    --primary-color: #073a7c;
    --primary-light: #E8F3FF;
    --primary-gradient: linear-gradient(135deg, #073a7c 0%, #0E48D9 100%);
    --gray-1: #F5F7FA;
    --gray-2: #E5E6EB;
    --gray-3: #86909C;
    --gray-4: #4E5969;
    --white: #FFFFFF;
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-circle: 50%;
}

html,
body {
    width: 100%;
    overflow-x: hidden;
}

/* 通用样式 */
.container {
    width: 100%;
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 clamp(20px, 3vw, 40px);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: clamp(40px, 5vh, 45px);
    padding: 0 clamp(15px, 2vw, 25px);
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: clamp(14px, 1.5vw, 16px);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    border: none;
    white-space: nowrap;
}

.primary-btn {
    background: var(--primary-gradient);
    color: var(--white);
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.secondary-btn {
    background-color: var(--white);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.secondary-btn:hover {
    background-color: var(--gray-1);
    transform: translateY(-2px);
}

.admin-btn {
    min-width: clamp(70px, 8vw, 80px);
    background: var(--primary-gradient);
    color: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: clamp(40px, 8vh, 80px);
    position: relative;
}

.section-title {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: bold;
    color: var(--gray-4);
    margin-bottom: clamp(10px, 1.5vw, 15px);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: clamp(40px, 5vw, 60px);
    height: 3px;
    background: var(--primary-gradient);
    border-radius: 3px;
}

.section-desc {
    font-size: clamp(14px, 1.8vw, 18px);
    color: var(--gray-3);
    max-width: min(800px, 90vw);
    margin: 0 auto;
    line-height: 1.6;
    padding: 0 clamp(15px, 2vw, 20px);
}

/* 顶部导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    z-index: 999;
    background-color: var(--white);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.header.scrolled {
    box-shadow: var(--shadow);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 clamp(15px, 2vw, 20px);
    max-width: 100%;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: clamp(6px, 1vw, 8px);
    text-decoration: none;
    height: 100%;
    margin-left: 5%;
}

.logo img {
    width: clamp(50px, 6vw, 70px);
    height: auto;
    object-fit: contain;
}

.logo-text {
    font-size: clamp(20px, 2.8vw, 28px);
    font-weight: bold;
    color: var(--primary-color);
}

.nav {
    flex: 1;
    display: flex;
    /* justify-content: center; */
    margin-left: 30%;
}

.nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: clamp(10px, 1.5vw, 15px);
}

.nav-link {
    font-size: clamp(16px, 1.8vw, 20px);
    color: var(--gray-3);
    text-decoration: none;
    padding: 0 clamp(3px, 0.5vw, 5px) clamp(3px, 0.5vw, 5px);
    border-bottom: 2px solid transparent;
    transition: color 0.3s ease;
    white-space: nowrap;
}

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

.nav-item.active .nav-link {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}



.btn-group {
    display: flex;
    gap: clamp(10px, 1.5vw, 15px);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    font-size: clamp(20px, 3vw, 24px);
    color: var(--primary-color);
    cursor: pointer;
}

.mobile-nav {
    display: none;
    position: fixed;
    top: clamp(60px, 8vh, 80px);
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: var(--shadow);
    z-index: 998;
}

.mobile-nav-list {
    list-style: none;
    padding: clamp(15px, 3vh, 20px) 0;
}

.mobile-nav-item {
    padding: clamp(8px, 1.5vh, 10px) clamp(15px, 3vw, 20px);
    border-bottom: 1px solid var(--gray-2);
}

.mobile-nav-link {
    display: block;
    font-size: clamp(14px, 1.8vw, 16px);
    color: var(--gray-4);
    text-decoration: none;
    padding: clamp(8px, 1.5vh, 10px) 0;
}

.blue {
    color: var(--primary-color)
}

/* 横幅Banner区 */
.banner {
    width: 100%;
    height: 100vh;
    min-height: 500px;
    padding-top: 80px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url(./images/bj3.png);
    z-index: 1;
}

.banner video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 1;
}

.banner-text {
    position: relative;
    z-index: 2;
    width: clamp(300px, 50vw, 600px);
    margin-left: clamp(20px, 8vw, 150px);
}

.banner-title {
    font-size: clamp(28px, 5vw, 55px);
    font-weight: bold;
    color: var(--white);
    margin-bottom: clamp(15px, 2vh, 20px);
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.banner-desc {
    font-size: clamp(14px, 1.8vw, 18px);
    color: var(--white);
    margin-bottom: clamp(25px, 4vh, 40px);
    line-height: 1.5;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.banner-btn {
    width: clamp(120px, 15vw, 140px);
    height: clamp(45px, 6vh, 50px);
    font-size: clamp(16px, 2vw, 22px);
    font-weight: 700;
    line-height: clamp(45px, 6vh, 50px);
}

/* 主要内容区域 */
.main-content {
    padding: clamp(40px, 8vh, 80px) 0;
}

.intro,
.scene,
.case,
.partners {
    margin-bottom: clamp(60px, 10vh, 120px);
}

/* 数字人简介区域 */
.intro-simplified {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: clamp(30px, 5vw, 60px);
    margin-top: clamp(40px, 6vh, 80px);
    align-items: center;
}

.ai-showcase {
    position: relative;
    height: 500px;
    background: linear-gradient(135deg, #f8fafc 0%, rgba(232, 243, 255, 0.8) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(7, 58, 124, 0.1);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.digital-avatar-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
}

.avatar-orb {
    position: relative;
    width: clamp(200px, 25vw, 300px);
    height: clamp(200px, 25vw, 300px);
    margin: 0 auto clamp(20px, 3vh, 30px);
}

.orb-core video {
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--radius-circle);
    box-shadow:
        0 20px 40px rgba(7, 58, 124, 0.3),
        inset 0 0 20px rgba(255, 255, 255, 0.3);
    z-index: 3;
    position: relative;
    animation: pulse-orb 4s infinite alternate;
}

@keyframes pulse-orb {
    0% {
        transform: scale(1);
        box-shadow:
            0 20px 40px rgba(7, 58, 124, 0.3),
            inset 0 0 20px rgba(255, 255, 255, 0.3);
    }

    100% {
        transform: scale(1.05);
        box-shadow:
            0 30px 60px rgba(7, 58, 124, 0.4),
            inset 0 0 30px rgba(255, 255, 255, 0.4);
    }
}

.orb-ring {
    position: absolute;
    border: 1px solid rgba(7, 58, 124, 0.15);
    border-radius: var(--radius-circle);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.orb-ring-1 {
    width: clamp(150px, 20vw, 220px);
    height: clamp(150px, 20vw, 220px);
    animation: rotate-ring 20s linear infinite;
}

.orb-ring-2 {
    width: clamp(180px, 23vw, 260px);
    height: clamp(180px, 23vw, 260px);
    border-color: rgba(14, 72, 217, 0.1);
    animation: rotate-ring 25s linear infinite reverse;
}

.orb-ring-3 {
    width: clamp(210px, 25vw, 300px);
    height: clamp(210px, 25vw, 300px);
    border-color: rgba(232, 243, 255, 0.2);
    animation: rotate-ring 30s linear infinite;
}

@keyframes rotate-ring {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.avatar-text {
    text-align: center;
}

.avatar-title {
    font-size: clamp(18px, 2vw, 24px);
    font-weight: bold;
    color: var(--gray-4);
    margin-bottom: clamp(6px, 1vh, 8px);
}

.avatar-desc {
    font-size: clamp(14px, 1.5vw, 16px);
    color: var(--gray-3);
    font-weight: 500;
}

.feature-corner {
    position: absolute;
    width: clamp(140px, 15vw, 160px);
    height: clamp(140px, 15vw, 160px);
    cursor: pointer;
    z-index: 5;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.feature-top-left {
    top: clamp(20px, 4vw, 60px);
    left: clamp(20px, 4vw, 60px);
}

.feature-top-right {
    top: clamp(20px, 4vw, 60px);
    right: clamp(20px, 4vw, 60px);
}

.feature-bottom-left {
    bottom: clamp(20px, 4vw, 60px);
    left: clamp(20px, 4vw, 60px);
}

.feature-bottom-right {
    bottom: clamp(20px, 4vw, 60px);
    right: clamp(20px, 4vw, 60px);
}

.corner-content {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: clamp(15px, 2vw, 25px);
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.feature-corner:hover .corner-content {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 35px rgba(7, 58, 124, 0.2);
    border-color: var(--primary-color);
}

.feature-corner.active .corner-content {
    background: var(--primary-gradient);
    transform: scale(1.1);
    box-shadow:
        0 20px 40px rgba(7, 58, 124, 0.3),
        0 0 0 4px rgba(7, 58, 124, 0.1);
}

.corner-icon {
    width: clamp(40px, 6vw, 60px);
    height: clamp(40px, 6vw, 60px);
    background: var(--primary-gradient);
    border-radius: var(--radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: clamp(3px, 0.5vh, 5px);
    font-size: clamp(18px, 2.5vw, 24px);
    color: var(--white);
    transition: all 0.3s ease;
}

.feature-corner.active .corner-icon {
    background: var(--white);
    color: var(--primary-color);
    transform: rotateY(180deg);
}

.corner-text h4 {
    font-size: clamp(14px, 1.5vw, 16px);
    font-weight: bold;
    color: var(--gray-4);
    margin-bottom: clamp(3px, 0.5vh, 5px);
    transition: color 0.3s ease;
}

.corner-text p {
    font-size: clamp(12px, 1.3vw, 13px);
    color: var(--gray-3);
    transition: color 0.3s ease;
}

.feature-corner.active .corner-text h4,
.feature-corner.active .corner-text p {
    color: var(--white);
}

.connection-line {
    position: absolute;
    background: linear-gradient(to right, rgba(7, 58, 124, 0.1), rgba(7, 58, 124, 0.3), rgba(7, 58, 124, 0.1));
    height: 1px;
    z-index: 4;
}

.feature-corner:hover~.connection-line,
.feature-corner.active~.connection-line {
    background: linear-gradient(to right, var(--primary-color), rgba(14, 72, 217, 0.8), var(--primary-color));
}

.line-1 {
    width: clamp(50px, 7vw, 80px);
    top: clamp(70px, 10vw, 120px);
    left: clamp(130px, 18vw, 220px);
    transform: rotate(45deg);
    transform-origin: left center;
}

.line-2 {
    width: clamp(50px, 7vw, 80px);
    top: clamp(70px, 10vw, 120px);
    right: clamp(130px, 18vw, 220px);
    transform: rotate(-45deg);
    transform-origin: right center;
}

.line-3 {
    width: clamp(50px, 7vw, 80px);
    bottom: clamp(70px, 10vw, 120px);
    left: clamp(130px, 18vw, 220px);
    transform: rotate(-45deg);
    transform-origin: left center;
}

.line-4 {
    width: clamp(50px, 7vw, 80px);
    bottom: clamp(70px, 10vw, 120px);
    right: clamp(130px, 18vw, 220px);
    transform: rotate(45deg);
    transform-origin: right center;
}

.intro-content {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-2);
    height: 555px;
    display: flex;
    flex-direction: column;
}

.content-header {
    margin-bottom: 30px;
}

.content-badge {
    display: inline-flex;
    align-items: center;
    gap: clamp(6px, 1vw, 10px);
    background: rgba(7, 58, 124, 0.1);
    color: var(--primary-color);
    padding: clamp(8px, 1vw, 10px) clamp(15px, 2vw, 20px);
    border-radius: 20px;
    font-size: clamp(12px, 1.5vw, 14px);
    font-weight: 600;
    margin-bottom: 20px;
}

.content-title {
    font-size: clamp(20px, 3vw, 32px);
    font-weight: bold;
    color: var(--gray-4);
    line-height: 1.3;
    margin: 0;
}

.content-body {
    flex: 1;
}

.content-main {
    font-size: clamp(14px, 1.5vw, 16.5px);
    line-height: 1.7;
    color: var(--gray-4);
    margin-bottom: clamp(10px, 1.5vh, 15px);
}

.content-main strong {
    color: var(--primary-color);
    font-weight: 600;
}

.more {
    font-size: clamp(14px, 1.5vw, 16px);
    line-height: 1.7;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: clamp(20px, 3vh, 30px);
    text-align: right;
}

.content-actions {
    display: flex;
    gap: clamp(15px, 2vw, 20px);
    flex-wrap: wrap;
}

.action-btn {
    flex: 1;
    min-width: 140px;
    gap: clamp(6px, 1vw, 10px);
    padding: clamp(12px, 2vh, 15px) clamp(20px, 2vw, 25px);
}

/* 应用场景区域 */
.scene-container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    grid-template-rows: repeat(6, minmax(80px, 120px));
    gap: clamp(15px, 2vw, 25px);
    margin-top: clamp(30px, 5vh, 60px);
}

.scene-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    transform-origin: center;
    z-index: 1;
}

.scene-card.active {
    z-index: 100;
    transform: scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.scene-card:nth-child(1) {
    grid-column: 1 / 8;
    grid-row: 1 / 4;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.scene-card:nth-child(2) {
    grid-column: 8 / 13;
    grid-row: 2 / 5;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.scene-card:nth-child(3) {
    grid-column: 1 / 9;
    grid-row: 4 / 7;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.scene-card:nth-child(4) {
    grid-column: 9 / 13;
    grid-row: 5 / 7;
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.scene-content {
    position: relative;
    z-index: 2;
    padding: clamp(20px, 3vw, 40px);
    color: var(--white);
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: all 0.6s ease;
}

.scene-title-container {
    position: relative;
    z-index: 3;
    transition: all 0.4s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.scene-card:not(.active) .scene-title-container {
    opacity: 1;
    transform: translateY(0);
}

.scene-card.active .scene-title-container {
    opacity: 0;
    transform: translateY(-20px);
    pointer-events: none;
}

.scene-number {
    font-size: clamp(16px, 2vw, 23px);
    background: rgba(255, 255, 255, 0.2);
    padding: clamp(4px, 0.8vw, 6px) clamp(8px, 1.2vw, 12px);
    border-radius: 23px;
    backdrop-filter: blur(10px);
    width: fit-content;
    margin-bottom: clamp(10px, 1.5vh, 15px);
}

.scene-title-main {
    font-size: clamp(20px, 3vw, 36px);
    font-weight: bold;
    margin-bottom: clamp(8px, 1vh, 10px);
    line-height: 1.3;
    text-align: center;
}

.scene-subtitle {
    font-size: clamp(14px, 2vw, 20px);
    opacity: 0.9;
    margin-top: clamp(3px, 0.5vh, 5px);
    text-align: center;
}

.scene-detail-container {
    position: absolute;
    top: clamp(20px, 3vw, 40px);
    left: clamp(20px, 3vw, 40px);
    right: clamp(20px, 3vw, 40px);
    bottom: clamp(20px, 3vw, 40px);
    display: flex;
    gap: clamp(20px, 3vw, 40px);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease 0.1s;
    pointer-events: none;
}

.scene-card.active .scene-detail-container {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.scene-image {
    flex: 1;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    /* min-height: 150px; */
}

.image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scene-detail-content {
    flex: 1.5;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 200px;
}

.scene-detail-title {
    font-size: clamp(18px, 2.5vw, 24px);
    font-weight: bold;
    margin-bottom: clamp(15px, 2vh, 20px);
    color: var(--white);
}

.scene-feature-list {
    list-style: none;
    padding: 0;
    margin-bottom: clamp(15px, 2.5vh, 25px);
}

.scene-feature-list li {
    font-size: clamp(14px, 1.5vw, 16px);
    margin-bottom: clamp(6px, 1vh, 10px);
    padding-left: 24px;
    position: relative;
    line-height: 1.5;
}

.scene-feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--white);
    border-radius: var(--radius-circle);
}

.scene-detail-desc {
    font-size: clamp(13px, 1.5vw, 15px);
    line-height: 1.6;
    margin-bottom: clamp(15px, 2.5vh, 25px);
    opacity: 0.9;
}

.scene-btn {
    display: inline-block;
    padding: clamp(10px, 1.5vw, 12px) clamp(20px, 3vw, 30px);
    background: var(--white);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-weight: bold;
    width: fit-content;
    transition: all 0.3s ease;
    font-size: clamp(14px, 1.5vw, 16px);
}

.scene-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.scene-card:hover:not(.active) {
    transform: scale(1.02);
}

.scene-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(7, 58, 124, 0.9) 0%, rgba(14, 72, 217, 0.7) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.scene-card:hover::before,
.scene-card.active::before {
    opacity: 1;
}

/* 客户案例区域 */
.cases-simple {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: clamp(20px, 3vw, 40px);
    margin-top: clamp(20px, 4vh, 40px);
}

.case-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    min-height: 600px;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.case-image {
    position: relative;
    height: clamp(250px, 35vh, 400px);
    overflow: hidden;
}

.case-image video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.case-item:hover .case-image video {
    transform: scale(1.05);
}

.case-tag {
    position: absolute;
    top: clamp(15px, 2vh, 20px);
    left: clamp(15px, 2vw, 20px);
    background: rgba(7, 58, 124, 0.9);
    color: var(--white);
    padding: clamp(4px, 0.8vw, 6px) clamp(12px, 1.5vw, 15px);
    border-radius: 20px;
    font-size: clamp(12px, 1.5vw, 14px);
    font-weight: bold;
}

.case-content {
    padding: clamp(20px, 3vw, 30px);
    display: flex;
    flex-direction: column;
    gap: clamp(20px, 3vh, 30px);
    height: calc(100% - clamp(250px, 35vh, 400px));
}

.case-intro {
    padding-bottom: clamp(15px, 2.5vh, 25px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.case-title {
    font-size: clamp(18px, 2.5vw, 26px);
    font-weight: bold;
    color: var(--gray-4);
    margin-bottom: clamp(10px, 1.5vh, 15px);
    line-height: 1.4;
}

.case-desc {
    font-size: clamp(14px, 1.5vw, 16px);
    color: var(--gray-3);
    line-height: 1.6;
}

.case-quote {
    background: linear-gradient(135deg, rgba(5, 94, 210, 0.2) 0%, rgba(14, 72, 217, 0.1) 100%);
    border-radius: var(--radius-md);
    padding: clamp(15px, 2.5vw, 25px);
    position: relative;
}

.quote-icon {
    font-size: clamp(32px, 4vw, 48px);
    font-family: serif;
    line-height: 1;
    margin-bottom: clamp(10px, 1.5vh, 15px);
    color: var(--primary-color);
    opacity: 0.3;
}

.quote-text {
    font-size: clamp(14px, 1.5vw, 16px);
    line-height: 1.6;
    color: var(--gray-4);
    margin-bottom: clamp(15px, 2vh, 20px);
    font-style: italic;
}

.quote-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-circle);
    background: var(--primary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 16px;
    flex-shrink: 0;
}

.author-info {
    flex: 1;
}

.author-name {
    font-size: clamp(14px, 1.5vw, 15px);
    font-weight: bold;
    color: var(--gray-4);
    margin-bottom: 3px;
}

.author-title {
    font-size: clamp(12px, 1.3vw, 13px);
    color: var(--gray-3);
}

/* 合作伙伴区域 */
.partners-container {
    margin-top: clamp(30px, 5vh, 60px);
}

.partners-tabs {
    display: flex;
    justify-content: center;
    gap: clamp(10px, 1.5vw, 15px);
    margin-bottom: clamp(30px, 5vh, 50px);
    flex-wrap: wrap;
}

.tab-btn {
    padding: clamp(8px, 1.5vw, 12px) clamp(15px, 3vw, 30px);
    background: var(--white);
    border: 2px solid var(--gray-2);
    border-radius: var(--radius-sm);
    font-size: clamp(14px, 1.5vw, 16px);
    color: var(--gray-4);
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.tab-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.tab-btn.active {
    background: var(--primary-gradient);
    color: var(--white);
    border-color: transparent;
    box-shadow: var(--shadow);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: clamp(20px, 3vw, 30px);
    margin-bottom: clamp(30px, 5vh, 60px);
}

.partner-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: clamp(20px, 3vw, 30px);
    box-shadow: var(--shadow);
    transition: all 0.4s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    min-height: 250px;
}

.partner-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.partner-logo {
    width: clamp(60px, 10vw, 80px);
    height: clamp(60px, 10vw, 80px);
    background: var(--primary-gradient);
    border-radius: var(--radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: clamp(15px, 2.5vh, 25px);
    font-size: clamp(24px, 3.5vw, 32px);
    color: var(--white);
    transition: all 0.3s ease;
}

.partner-card[data-category="education"] .partner-logo {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.partner-card[data-category="ecommerce"] .partner-logo {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.partner-card:hover .partner-logo {
    transform: scale(1.1) rotateY(180deg);
}

.partner-name {
    font-size: clamp(16px, 2vw, 18px);
    font-weight: bold;
    color: var(--gray-4);
    margin-bottom: 15px;
}

.partner-tags {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.partner-tag {
    font-size: clamp(10px, 1.2vw, 12px);
    padding: 4px 12px;
    background: var(--primary-light);
    color: var(--primary-color);
    border-radius: 15px;
}

.partner-card[data-category="education"] .partner-tag {
    background: rgba(79, 172, 254, 0.1);
    color: #4facfe;
}

.partner-card[data-category="ecommerce"] .partner-tag {
    background: rgba(240, 147, 251, 0.1);
    color: #f5576c;
}

.partner-desc {
    font-size: clamp(13px, 1.5vw, 14px);
    color: var(--gray-3);
    line-height: 1.6;
}

/* 底部信息区 */
.footer {
    background-color: #2D3039;
    /* 参考图深色背景 */
    color: #B0B3B8;
    /* 浅灰色文字 */
    padding: 20px 0;
    font-size: 12px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
}

.copyright-text {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 0;
}

.police-icon {
    height: 16px;
    vertical-align: middle;
}

.footer-link {
    color: #B0B3B8;
    text-decoration: none;
}

.footer-link:hover {
    color: #409EFF;
    /*  hover 时的蓝色高亮 */
}

.map-links {
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .nav-list {
        gap: clamp(8px, 1.2vw, 12px);
    }

    .scene-container {
        grid-template-rows: repeat(6, minmax(70px, 100px));
        gap: 15px;
    }

    .intro-simplified {
        grid-template-columns: 1.2fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 992px) {

    .nav,
    .btn-group {
        display: none;
    }

    .hamburger {
        display: block;
    }

    .mobile-nav.show {
        display: block;
    }

    .intro-simplified {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .scene-container {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .scene-card {
        min-height: 300px;
    }

    .cases-simple {
        grid-template-columns: 1fr;
    }

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

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }

    .footer-contact,
    .footer-legal {
        text-align: center;
    }

    .legal-list {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .header .container {
        padding: 0 15px;
    }

    .btn-group {
        gap: 10px;
    }

    .btn {
        padding: 0 15px;
        font-size: 14px;
    }

    .banner {
        justify-content: center;
        text-align: center;
    }

    .banner-text {
        margin-left: 0;
        width: 90%;
    }

    .banner-title {
        font-size: 27px;
    }

    .banner-desc {
        font-size: 15px;
    }

    .scene-title-container {
        margin-top: 50px;
    }

    .scene-detail-container {
        flex-direction: column;
    }

    .scene-detail-content {
        margin-top: 40px;
    }

    .scene-title-main {
        font-size: 18px;
    }

    .scene-detail-title {
        font-size: clamp(16px, 3vw, 20px);
    }

    .scene-image {
        display: none;
    }

    .scene-btn {
        display: none;
    }

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

    .partners-tabs {
        gap: 8px;
    }

    .tab-btn {
        padding: 8px 15px;
        font-size: 14px;
    }

    .feature-corner {
        width: 60px;
        height: 60px;
    }

    .feature-top-left {
        top: clamp(20px, 4vw, 60px);
        left: clamp(20px, 4vw, 60px);
    }

    .feature-top-right {
        top: clamp(20px, 4vw, 60px);
        right: clamp(20px, 4vw, 60px);
    }

    .feature-bottom-left {
        bottom: clamp(20px, 4vw, 60px);
        left: clamp(20px, 4vw, 60px);
    }

    .feature-bottom-right {
        bottom: clamp(20px, 4vw, 60px);
        right: clamp(20px, 4vw, 60px);
    }

    .corner-content {
        padding: 10px;
    }

    .corner-text h4 {
        font-size: 7px;
        font-weight: normal;
    }

    .corner-text p {
        font-size: 5px;
    }

    .corner-icon {
        width: 20px;
        height: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }

    .logo img {
        width: 50px;
    }

    .logo-text {
        font-size: 18px;
    }

    .banner {
        min-height: 400px;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .scene-container {
        grid-template-rows: repeat(6, minmax(60px, 80px));
    }

    .ai-showcase {
        height: 300px;
    }

    .avatar-orb {
        width: 150px;
        height: 150px;
    }

    .partner-card {
        min-height: 200px;
    }

    .action-btn {
        min-width: 100%;
    }

    .cases-simple {
        grid-template-columns: 1fr;
    }
}

/* 小屏电脑优化 */
@media (min-width: 768px) and (max-width: 1366px) {
    .banner {
        height: calc(85vh - clamp(60px, 8vh, 80px));
    }

    .banner-text {
        width: 85%;
    }

    .nav-list {
        gap: 20px;
    }

    .btn-group {
        gap: 12px;
    }
}

/* 大屏电脑优化 */
@media (min-width: 1920px) {
    .container {
        max-width: 1800px;
    }

    .banner {
        height: 100vh;
    }

    .banner-text {
        max-width: 600px;
    }
}