/* ====== 基础变量 ====== */
:root {
    /* 主色调 - 医疗科技蓝 */
    --primary-blue: #2A8CFF;
    --primary-blue-dark: #1A6FD9;
    --primary-blue-light: #E8F3FF;
    /* 辅助色 */
    --secondary-green: #00CC88;
    --secondary-teal: #00C2D6;
    --secondary-purple: #9D65C9;
    --accent-orange: #FF9F43;
    /* 中性色 */
    --text-dark: #1A1A2E;
    --text-gray: #6C757D;
    --text-light: #8A94A6;
    --bg-white: #FFFFFF;
    --bg-light: #F8FAFF;
    --bg-gray: #F5F7FB;
    --border-color: #E8ECF3;
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(42, 140, 255, 0.08);
    --shadow-md: 0 4px 12px rgba(42, 140, 255, 0.12);
    --shadow-lg: 0 8px 24px rgba(42, 140, 255, 0.16);
    --shadow-xl: 0 12px 32px rgba(42, 140, 255, 0.2);
    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    background-color: var(--bg-white);
    overflow-x: auto;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1.5rem;
    color: var(--text-gray);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    /*max-width: 1280px;*/
    margin: 0 auto;
    /*padding: 0 24px;*/
}

.section {
    padding-top: 70px;
}

.section-lg {
    padding: 120px 0;
}

.section-sm {
    padding: 80px 0;
}

/* ====== 按钮样式 ====== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    gap: 10px;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
    z-index: -1;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-dark));
    color: var(--bg-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-green), #00B87A);
    color: var(--bg-white);
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-outline:hover {
    background: var(--primary-blue);
    color: var(--bg-white);
    transform: translateY(-3px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-gray);
    border: 2px solid var(--border-color);
}

.btn-ghost:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    transform: translateY(-3px);
}

/* ====== 头部导航 ====== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    padding: 10px 0;
    box-shadow: var(--shadow-md);
}

.header-container {
    display: flex;
    align-items: center;
    /*gap: 95px;*/
    /*justify-content: space-between;*/
    max-width: 1800px;
    min-width: 1300px;
    padding: 20px;
    height: 110px;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-teal));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-white);
    font-size: 22px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary-blue);
    line-height: 1;
    display: flex;
    align-items: center;
    gap: 4px;
}

.logo-title span {
    color: var(--secondary-green);
}

.logo-subtitle {
    font-size: 12px;
    color: var(--text-light);
    letter-spacing: 1px;
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-list {
    display: flex;
    gap: 32px;
    margin-left: 90px;
}

.nav-link {
    color: var(--text-dark);
    font-weight: 600;
    font-size: 25px;
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-green));
    border-radius: 1.5px;
    transition: var(--transition);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 215px;
    height: 53px;
    background: rgba(226,236,252,0.39);
    border-radius: 27px;
    position: absolute;
    right: 15px;
}

.nav-text {
    font-family: PingFang SC;
    font-weight: bold;
    font-size: 20px;
    color: #333333;
    line-height: 53px;
    float: right;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-dark);
    cursor: pointer;
    padding: 8px;
}


.feature-number {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-blue);
    line-height: 1;
}

.feature-text {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 8px;
}

/* ====== 营销卖点 ====== */
.features {
    background-color: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    font-family: Source Han Sans CN;
    font-weight: bold;
    font-size: 60px;
    color: #333333;
    line-height: 60px;
}


.section-header p {
    font-size: 18px;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto;
}

.features-grid {
    display: flex;
    margin: 0 auto;
    justify-content: center;
    min-width: 1300px;
    max-width: 1920px;
    gap: 30px;
    padding-bottom: 50px;
}

.features-item {
    width: 290px;
    height: 90px;
    display: flex;
    justify-content: center;
    gap: 10px;
    align-items: center;
    cursor: pointer;

    border-radius: 51px;
}
.deep-back {
    background: linear-gradient(270deg, #5D92FF 0%, #9574FF 100%);
}

.item-border {
    border: 2px solid #D9E2FF;
}

.deep-back .text {
    font-family: PingFang SC;
    font-weight: 600;
    font-size: 32px;
    color: #FFFFFF;
    line-height: 45px;
}
.item-border .text {
    font-family: PingFang SC;
    font-weight: 600;
    font-size: 32px;
    color: #333333;
    line-height: 45px;
}

.yuyin-card {
    min-width: 1300px;
    max-width: 1920px;
    height: 854px;
    /*position: relative;*/
    display: flex;
    background: rgba(246,248,255,0.7);
    /*border-radius: 30px;*/
    margin: 0 auto;
}

.yuyin-left {
    display: flex;
    flex-direction: column;
    margin-top: 66px;
    margin-left: 35px;
}
.yuyin-card .card-top {
    display: flex;
    align-items: center;
    gap: 20px;
    padding-left: 30px;
    /*position: absolute;*/
    /*top: 64px;*/
    /*left: 78px;*/
}

.main-title {
    font-family: Source Han Sans CN;
    font-weight: bold;
    font-size: 50px;
    color: #333333;
    line-height: 55px;
}

.yuyin-peitu {
    width: 930px;
    height: 689px;
    /*position: absolute;*/
    /*left: 35px;*/
    /*top: 144px;*/
}

.yuyin-text {
    /*position: absolute;*/
    /*top: 240px;*/
    /*left: 62%;*/
    margin-top: 240px;
    padding-left: 10%;
}
.top-text {
    display: flex;
    gap: 24px;
}
.context-text {
    margin-top: -15px;
}
.title-text {
    max-width: 388px;
    height: 80px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    font-size: 36px;
    color: #333333;
    line-height: 61px;
}
.explain-text {
    max-width: 498px;
    font-family: PingFang SC;
    font-weight: 500;
    font-size: 25px;
    color: #77788D;
    line-height: 35px;
    letter-spacing: 5px;
}
/* ====== 首页图片 ====== */
.image-content {
    max-width: 1920px;
    min-width: 1300px;
    flex: 1;
    height: 772px;
    margin: 0 auto;
    display: flex;
    gap: 80px;
    /*position: relative;*/
    background-image: url("../image/topimage/beijing.png");
}

.left-content {
    margin-left: 6.25%;
    margin-top: 166px;
}
.huiyi-image {
    /*position: absolute;*/
    /*top: 162px;*/
    /*left: 120px;*/
    width: 288px;
    height: 72px;
    font-family: Source Han Sans CN;
    font-weight: bold;
    font-size: 72px;
    color: #333333;
    line-height: 122px;
    /*width: 370px;*/
    /*height: 76px;*/
}

.image-text {
    /*position: absolute;*/
    /*top: 298px;*/
    /*left: 120px;*/
    margin-top: 60px;
    max-width: 684px;
    min-width: 184px;
    height: 50px;
    font-family: PingFang SC;
    font-weight: 500;
    font-size: 36px;
    color: #555555;
    line-height: 50px;
    position: relative;
}

/* 核心组件：带右侧按钮的输入框 */
.phone-input-group {
    position: absolute;
    top: 432px;
    left: 120px;
    width: 650px;
    height: 76px;
    background: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
}


/* 左边手机号输入区 */
.input-field {
    width: 500px;               /* 防止flex溢出，允许截断/省略 */
    padding: 14px 12px;         /* 垂直内缩，水平留白 */
    font-size: 26px;
    font-weight: 450;
    color: #13294b;
    background: transparent;
    border: none;
    outline: none;
    line-height: 1.4;
    letter-spacing: 0.2px;
}

.input-field::placeholder {
    width: 156px;
    height: 37px;
    font-family: PingFang SC;
    font-weight: 500;
    font-size: 26px;
    color: #999999;
    line-height: 37px;
}

/* 右侧体验咨询按钮 */
.consult-button {
    width: 150px;
    height: 70px;
    border-radius: 10px;
    border: none;
    margin-right: 5px;
    font-family: PingFang SC;
    font-weight: 500;
    font-size: 26px;
    color: #FFFFFF;
    line-height: 37px;
    cursor: pointer;
    background: linear-gradient(270deg, #5D92FF 0%, #9574FF 100%);
}
.xiantiao {
    /*margin-left: 300px;*/
    /*margin-top: -20px;*/
    position: absolute;
    top: 35px;
    left: 440px;
}

.image-peitu {
    margin-top: 125px;
    /*position: absolute;*/
    /*top: 125px;*/
    /*right: 104px;*/
}

.bottom-text {
    /*position: absolute;*/
    /*bottom: 114px;*/
    /*left: 120px;*/
    margin-top: 230px;
    max-width: 726px;
    height: 30px;
    font-family: PingFang SC;
    font-weight: 500;
    font-size: 22px;
    color: #77788D;
    line-height: 30px;
}
/* ====== 页脚 ====== */
.footer {
    background: url("../svg/footer/beijing.svg") no-repeat center center;
    background-size: cover;
    min-height: 593px;
    margin: 0;
    min-width: 1300px;
    /*position: relative;*/
}
.ba-link {
    color: var(--text-gray);
}
.ba-link+.ba-link{
    margin-left: 8px;
}

.foot-top {
    display: flex;
    justify-content: space-around;
}
.foot-left {
    margin-top: 99px;
    margin-left: 181px;
}
.lianxi-content {
    margin-top: 20px;
    /*display: flex;*/
    /*gap: 30px;*/
    /*position: absolute;*/
    /*top: 45.9%;*/
    /*left: 12%;*/
}

.contact-text {
    color: white;
    font-size: 22px;
}
.yunzhen-text {
    max-width: 750px;
    min-width: 300px;
    height: 58px;
    font-family: Source Han Sans CN;
    font-weight: bold;
    font-size: 36px;
    color: #FFFFFF;
    line-height: 58px;
    /*position: absolute;*/
    /*left: 12%;*/
    /*top: 99px;*/
    /*letter-spacing: 20px;*/
}

.one-text {
    max-width: 702px;
    height: 28px;
    font-family: PingFang SC;
    font-weight: 500;
    font-size: 22px;
    color: #FFFFFF;
    line-height: 28px;
    opacity: 0.7;
    margin-top: 30px;
    /*position: absolute;*/
    /*left: 12%;*/
    /*top: 30.4%;*/
}

.foot-right {
    margin-top: 125px;
    padding-left: 100px;
}
.tag-content {
    height: 60px;
    background: rgba(255,255,255,0.02);
    border-radius: 32px;
    border: 1px solid rgba(255,255,255,0.3255);
    font-family: PingFang SC;
    font-weight: bold;
    font-size: 18px;
    color: #FFFFFF;
    line-height: 25px;
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
}

.tag-one {
    margin-left: -20px;
    width: 362px;
}

.tag-two {
    margin-top: -20px;
    margin-left: 360px;
    width: 308px;
}

.tag-third {
    margin-left: -40px;
    width: 362px;
}

.tag-four {
    margin-top: -20px;
    margin-left: 340px;
    width: 316px;
}
.footer-phone-input-group {
    width: 390px;
    height: 74px;
    background: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
}


/* 左边手机号输入区 */
.footer-input-field {
    width: 500px;               /* 防止flex溢出，允许截断/省略 */
    padding: 14px 12px;         /* 垂直内缩，水平留白 */
    font-size: 26px;
    font-weight: 450;
    color: #13294b;
    background: transparent;
    border: none;
    outline: none;
    line-height: 1.4;
    letter-spacing: 0.2px;
}

.footer-input-field::placeholder {
    width: 156px;
    height: 37px;
    font-family: PingFang SC;
    font-weight: 500;
    font-size: 26px;
    color: #999999;
    line-height: 37px;
}

/* 右侧体验咨询按钮 */
.footer-consult-button {
    width: 150px;
    height: 74px;
    border-radius: 10px;
    border: none;
    font-family: PingFang SC;
    font-weight: 500;
    font-size: 26px;
    color: #FFFFFF;
    line-height: 37px;
    cursor: pointer;
    background: linear-gradient(270deg, #5D92FF 0%, #9574FF 100%);
}
.footer-lianxi-button {
    width: 150px;
    height: 74px;
    font-family: PingFang SC;
    font-weight: bold;
    font-size: 24px;
    color: #FFFFFF;
    line-height: 33px;
    background: linear-gradient(180deg, rgba(255,255,255,0.28) 0%, rgba(255,255,255,0) 100%);
    border-radius: 11px;
    border: 1px solid #FFFFFF;
}

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    float: revert;
    margin: 100px 0;
}

/* ====== 响应式设计 ====== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-content p {
        margin: 0 auto 36px;
    }

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

    .section-header h2 {
        font-size: 32px;
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--bg-white);
        flex-direction: column;
        padding: 40px;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
        z-index: 999;
    }

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

    .nav-list {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

    /*.nav-actions {*/
    /*    flex-direction: column;*/
    /*    width: 100%;*/
    /*}*/

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .section {
        padding: 60px 0;
    }

    .section-lg {
        padding: 80px 0;
    }

    .cta h2 {
        font-size: 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding-top: 140px;
        padding-bottom: 80px;
    }

    .features-grid,
    .services-grid,
    .case-grid {
        grid-template-columns: 1fr;
    }

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