/* 首页专属：整屏滚动、各区块、动画 */

/* 普通连续滚动：已移除 scroll-snap 整屏吸附 */
html.fullpage-mode {
    height: 100%;
    /* 禁止顶部/底部橡皮筋回弹露出白边 */
    overscroll-behavior-y: none;
    background: var(--navy);
}

html.fullpage-mode body {
    height: 100%;
    overflow-x: hidden;
    overscroll-behavior-y: none;
    /* 与页脚同色，极端回弹时也不露白 */
    background: var(--navy);
}

.fullpage-section {
    position: relative;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    padding: 72px 0;
}

.fullpage-section.is-footer {
    height: 320px;
    min-height: 320px;
    max-height: 320px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    box-sizing: border-box;
    padding: 0;
}

/* CTA + 页脚收尾：一屏完整展示（CTA 占满剩余高度，背景图正常铺满） */
.fullpage-section.closing {
    height: 100vh;
    min-height: 100vh;
    max-height: 100vh;
    overflow: hidden;
    justify-content: flex-start;
    padding: 0;
    display: flex;
    flex-direction: column;
}

/*
 * 内容较高的区块：自适应高度，避免短内容强行撑满一屏留空白
 */
.fullpage-section.advantages,
.fullpage-section.cases-partners {
    height: auto;
    min-height: auto;
    max-height: none;
    overflow: visible;
    justify-content: flex-start;
    padding-top: 72px;
    padding-bottom: 48px;
}

/* 进场动画：淡入 + 上移 */
.reveal {
    opacity: 0;
    transform: translate3d(0, 36px, 0);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: opacity, transform;
}

.reveal.is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.22s; }
.reveal-delay-3 { transition-delay: 0.34s; }
.reveal-delay-4 { transition-delay: 0.46s; }

/* 优势卡片：覆盖 .adv-card 的 opacity/transition，保证入场动画生效 */
.adv-card.reveal {
    opacity: 0;
    transform: translate3d(0, 48px, 0);
    transition: opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.75s cubic-bezier(0.22, 1, 0.36, 1),
        box-shadow var(--transition);
}

.adv-card.reveal.is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.adv-card.reveal.is-visible:hover {
    transform: translateY(-8px);
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .reveal,
    .adv-card.reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .scroll-mouse,
    .scroll-mouse .wheel,
    .scroll-hint-icon {
        animation: none !important;
    }

    .radar-dot::before {
        animation: none !important;
        transform: scale(1.8);
        opacity: 0.35;
    }

    .radar-mini {
        animation: none !important;
    }
}

/* ========== Hero ========== */
.hero {
    color: var(--white);
    height: 100vh;
    min-height: 100vh;
    max-height: 100vh;
    overflow: hidden;
    justify-content: stretch;
    padding: 0;
}

.hero-slider {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.9s ease, visibility 0.9s ease;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    flex-direction: column;
}

.hero-slide.is-active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    z-index: 1;
}

.hero-slide--product::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 2;
    flex: 1;
    display: flex;
    align-items: center;
    width: 100%;
}

/* 首屏文案距浏览器左侧 200px */
.hero-copy {
    margin-left: 200px;
    padding-right: 40px;
}

.hero-copy h1 {
    font-family: 'Alimama ShuHeiTi', '阿里妈妈数黑体', 'PingFang SC',
        'Microsoft YaHei', sans-serif;
    font-size: 80px;
    font-weight: bold;
    line-height: 100px;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #ffffff;
    margin-bottom: 16px;
    text-shadow: 0 4px 24px rgba(0, 0, 0, 0.45),
        0 2px 8px rgba(0, 0, 0, 0.35);
}

.hero-copy h1 .sub {
    display: block;
    font-family: inherit;
    font-size: inherit;
    font-weight: inherit;
    line-height: inherit;
    letter-spacing: inherit;
    color: inherit;
    margin-top: 0;
    opacity: 1;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.hero-lead {
    font-family: 'Alibaba PuHuiTi 3.0', 'Alibaba PuHuiTi', '阿里巴巴普惠体',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 30px;
    font-weight: 500;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #ffffff;
    margin-bottom: 30px;
}

.hero-phone {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 38px;
    font-family: 'Alibaba PuHuiTi 3.0', 'Alibaba PuHuiTi', '阿里巴巴普惠体',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 26px;
    font-weight: 500;
    line-height: 30px;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #ffffff;
}

.hero-phone img {
    width: 26px;
    height: 26px;
}

.hero-phone-text {
    font-size: 20px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 50px;
}

/* 第二张幻灯片：浅色背景上的按钮（复用 common.css 中 .hero-actions--track 样式） */
.hero-actions--track {
    margin-top: 60px;
}

/* Hero 描边按钮：试用咨询 / 查询运踪 */
.btn-hero {
    width: 186px;
    height: 60px;
    min-width: 186px;
    padding: 0 24px;
    border-radius: 50px;
    box-sizing: border-box;
    border: 2px solid #ffffff;
    background: transparent;
    color: #ffffff;
    font-size: 16px;
    font-weight: 500;
    gap: 10px;
    box-shadow: none;
}

.btn-hero:hover {
    transform: none;
    color: #333333;
    background: #ffffff;
    border-color: #ffffff;
    box-shadow: none;
}

.btn-hero-icon {
    display: inline-block;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    background: url('../image/index/arrow-right-white.png') center / contain no-repeat;
    transition: none;
}

.btn-hero:hover .btn-hero-icon {
    background-image: url('../image/index/arrow-right-gray.png');
}

/* —— 轨迹系统 Banner（浅色） —— */
.hero-slide--track {
    background-color: #d7ebff;
    background-position: center center;
}

/* 轨迹屏文案靠上，贴近导航下方 */
.hero-slide--track .hero-inner {
    align-items: flex-start;
    padding-top: calc(var(--header-height) + 88px);
}

/* ========== 脉冲点叠加层（轨迹系统 Banner，纯 CSS） ========== */
.radar-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
}

/* 脉冲标记点：实心核心 + 扩散圆环 */
.radar-dot {
    position: absolute;
    width: 14px;
    height: 14px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 8px currentColor, 0 0 16px currentColor;
}

.radar-dot::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    border: 2px solid currentColor;
    animation: radar-pulse 2.4s ease-out infinite;
    animation-play-state: paused;
}

/* 绿色脉冲点 */
.radar-dot--start { top: calc(48% + 70px); left: calc(68% - 300px); color: #2ec48e; }

/* 小型雷达扫描圈：围绕脉冲点旋转 */
.radar-mini {
    position: absolute;
    top: calc(48% + 70px);
    left: calc(68% - 300px);
    width: 120px;
    height: 120px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 1px solid rgba(46, 196, 142, 0.28);
    background:
        conic-gradient(
            from 0deg,
            rgba(46, 196, 142, 0.32) 0deg,
            rgba(46, 196, 142, 0) 50deg,
            rgba(46, 196, 142, 0) 360deg
        );
    animation: radar-mini-rotate 3s linear infinite;
    animation-play-state: paused;
}

/* 仅激活时播放；隐藏时暂停 */
.hero-slide--track.is-active .radar-dot::before,
.hero-slide--track.is-active .radar-mini {
    animation-play-state: running;
}

@keyframes radar-pulse {
    0%   { transform: scale(1);   opacity: 0.85; }
    70%  { opacity: 0.25; }
    100% { transform: scale(3.4); opacity: 0; }
}

@keyframes radar-mini-rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to   { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 响应式：移动端微调位置 */
@media (max-width: 720px) {
    .radar-dot--start { top: calc(50% + 60px); left: calc(68% - 220px); }
    .radar-mini {
        top: calc(50% + 60px);
        left: calc(68% - 220px);
        width: 90px;
        height: 90px;
    }
}

.hero-copy--track {
    color: #202b3c;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 300px;
    height: 44px;
    padding: 0 16px;
    margin-bottom: 24px;
    box-sizing: border-box;
    border-radius: 30px;
    opacity: 1;
    background: #e0edfd;
    font-family: 'Source Han Sans', 'Source Han Sans SC', 'Noto Sans SC',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 20px;
    font-weight: normal;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #003680;
    white-space: nowrap;
}

.hero-badge-icon {
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    display: block;
    object-fit: contain;
}

.hero-copy--track h1,
.hero-copy--track h2 {
    font-family: 'Alimama ShuHeiTi', '阿里妈妈数黑体', 'PingFang SC',
        'Microsoft YaHei', sans-serif;
    font-size: 80px;
    font-weight: bold;
    line-height: 100px;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #202b3c;
    margin-bottom: 16px;
    text-shadow: none;
}

.hero-copy--track h1 .accent,
.hero-copy--track h2 .accent {
    color: #0162e4;
}

.hero-sub {
    font-family: 'Source Han Sans', 'Source Han Sans SC', 'Noto Sans SC',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 36px;
    font-weight: normal;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #222222;
    margin-bottom: 36px;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px 28px;
    margin-bottom: 28px;
    max-width: 640px;
}

.hero-features li {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
}

.hero-feature-icon {
    width: 64px;
    height: 64px;
    display: block;
    object-fit: contain;
    margin-bottom: 4px;
    border-radius: 0;
    background: none;
    box-shadow: none;
}

.hero-features strong {
    font-family: 'Source Han Sans', 'Source Han Sans SC', 'Noto Sans SC',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 20px;
    font-weight: 500;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #222222;
}

.hero-features li > span {
    font-family: 'Source Han Sans', 'Source Han Sans SC', 'Noto Sans SC',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 18px;
    font-weight: normal;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #666666;
}

.btn-hero-demo {
    width: 300px;
    min-width: 300px;
    height: 120px;
    padding: 0 40px 10px;
    border-radius: 0;
    border: none;
    background: url('../image/index/banner_btn_bg.png') center / 100% 100% no-repeat;
    box-shadow: none;
    font-family: 'Source Han Sans', 'Source Han Sans SC', 'Noto Sans SC',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 24px;
    font-weight: 500;
    line-height: 1;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #ffffff;
    gap: 8px;
}

.btn-hero-demo:hover {
    transform: translateY(-2px);
    box-shadow: none;
}

/* 素材含透明边，显示尺寸按 2x 以保证三角可辨认 */
.btn-hero-demo-play {
    width: 33px;
    height: 36px;
    display: block;
    flex-shrink: 0;
    object-fit: contain;
    background: none;
    border-radius: 0;
}

.hero-nav-btn {
    position: absolute;
    top: 50%;
    z-index: 5;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.45);
    background: rgba(255, 255, 255, 0.12);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(6px);
    transition: background var(--transition), border-color var(--transition),
        color var(--transition);
    transform: translateY(-50%);
}

.hero-nav-btn:hover {
    background: rgba(255, 255, 255, 0.28);
    border-color: rgba(255, 255, 255, 0.85);
}

.hero.is-light .hero-nav-btn {
    border-color: rgba(26, 109, 255, 0.18);
    background: rgba(255, 255, 255, 0.72);
    color: #5a6b85;
    box-shadow: 0 4px 16px rgba(26, 80, 160, 0.1);
}

.hero.is-light .hero-nav-btn:hover {
    background: #ffffff;
    color: #1a6dff;
    border-color: rgba(26, 109, 255, 0.35);
}

.hero-nav-btn.prev { left: 24px; }
.hero-nav-btn.next { right: 24px; }

/* 轮播指示点：与左侧文案左对齐（左下角） */
.hero-dots {
    position: absolute;
    left: 200px;
    bottom: 48px;
    z-index: 5;
    display: flex;
    align-items: center;
    gap: 10px;
}

.hero-dots button {
    width: 36px;
    height: 4px;
    padding: 0;
    border: none;
    border-radius: 0;
    background: #ffffff;
    opacity: 0.5;
    transition: width var(--transition), opacity var(--transition),
        background var(--transition);
}

.hero-dots button.is-active {
    width: 60px;
    height: 4px;
    opacity: 1;
    background: #ffffff;
}

.hero.is-light .hero-dots button {
    background: rgba(26, 109, 255, 0.28);
    opacity: 1;
}

.hero.is-light .hero-dots button.is-active {
    background: #1a6dff;
}

/* 首页：顶部导航不吸顶，随首屏一起滚走 */
html.fullpage-mode .site-header {
    position: absolute;
}

/* 浅色 Banner：顶部导航改为深色文字 */
.site-header.is-light .nav-list a {
    color: #1a2b4a;
}

.site-header.is-light .nav-list a::after {
    background: #1a6dff;
}

.site-header.is-light .nav-list a:hover::after,
.site-header.is-light .nav-list a.is-active::after {
    opacity: 1;
}

/* 浅色 Banner：登录按钮改为深色文字（与导航 #1a2b4a 一致） */
.site-header.is-light .header-login {
    color: #1a2b4a;
    border-color: rgba(26, 43, 74, 0.3);
    background: rgba(26, 43, 74, 0.04);
}

.site-header.is-light .header-login:hover {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

.hero.is-light .scroll-hint {
    filter: brightness(0.45);
}

/* 向下滚动提示：鼠标 + 双箭头图标 */
.scroll-hint {
    position: absolute;
    left: 50%;
    bottom: 28px;
    z-index: 6;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 8px;
    cursor: pointer;
    background: none;
    border: none;
}

.scroll-mouse {
    width: 22px;
    height: 34px;
    border: 2px solid rgba(255, 255, 255, 0.75);
    border-radius: 12px;
    position: relative;
    animation: mouse-bounce 1.8s ease-in-out infinite;
}

.scroll-mouse .wheel {
    position: absolute;
    top: 6px;
    left: 50%;
    width: 3px;
    height: 7px;
    margin-left: -1.5px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.9);
    animation: wheel-scroll 1.8s ease-in-out infinite;
}

.scroll-hint-icon {
    display: block;
    width: 18px;
    height: 18px;
    animation: scroll-hint-bounce 1.6s ease-in-out infinite;
}

@keyframes mouse-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
}

@keyframes wheel-scroll {
    0% { opacity: 1; transform: translateY(0); }
    60% { opacity: 0; transform: translateY(8px); }
    100% { opacity: 0; transform: translateY(0); }
}

@keyframes scroll-hint-bounce {
    0%, 100% {
        transform: translateY(0);
        opacity: 0.55;
    }
    40% {
        transform: translateY(6px);
        opacity: 1;
    }
    70% {
        transform: translateY(3px);
        opacity: 0.75;
    }
}

/* ========== 核心优势 ========== */
.advantages {
    background: url('../image/index/bg_core.webp') center bottom / cover no-repeat;
    background-color: #f5f8fc;
    padding: 48px 0;
}

.advantages .container {
    max-width: 1760px;
}

.adv-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    margin-top: 40px;
}

.adv-card {
    position: relative;
    width: 400px;
    height: 600px;
    border-radius: 20px;
    opacity: 1;
    background: #ffffff;
    box-shadow: 0 30px 30px 0 rgba(0, 0, 0, 0.05);
    padding: 36px 40px 40px;
    box-sizing: border-box;
    transition: transform var(--transition), box-shadow var(--transition);
    overflow: hidden;
}

.adv-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 36px 40px 0 rgba(0, 0, 0, 0.08);
}

.adv-num {
    display: flex;
    align-items: baseline;
    line-height: 40px;
    margin-bottom: 8px;
}

.adv-num-current {
    font-family: 'Alibaba PuHuiTi 3.0', 'Alibaba PuHuiTi', '阿里巴巴普惠体',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 40px;
    font-weight: 500;
    line-height: 40px;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #333333;
    margin-right: 8px;
}

.adv-num-total {
    font-family: 'Alibaba PuHuiTi 3.0', 'Alibaba PuHuiTi', '阿里巴巴普惠体',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 20px;
    font-weight: 500;
    line-height: 40px;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #999999;
}

.adv-icon {
    width: 260px;
    height: 260px;
    margin: 8px auto 16px;
}

.adv-icon img {
    display: block;
    width: 260px;
    height: 260px;
    object-fit: contain;
}

.adv-card h3 {
    font-family: 'Source Han Sans', 'Source Han Sans SC', 'Noto Sans SC',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 30px;
    font-weight: 500;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #222222;
    margin-bottom: 8px;
}

.adv-card .en-title {
    font-family: 'Source Han Sans', 'Source Han Sans SC', 'Noto Sans SC',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    font-weight: normal;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #999999;
    text-transform: none;
    margin-bottom: 0;
}

.adv-bar {
    position: absolute;
    left: 40px;
    top: 470px;
    width: 32px;
    height: 6px;
    opacity: 1;
    background: #0162e4;
}

.adv-card p {
    position: absolute;
    left: 40px;
    right: 40px;
    top: 492px;
    margin: 0;
    font-family: 'Source Han Sans', 'Source Han Sans SC', 'Noto Sans SC',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    font-weight: normal;
    line-height: 1.6;
    text-align: justify;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #666666;
}

/* ========== 成功案例 + 合作伙伴（同屏） ========== */
.cases-partners {
    background: url('../image/index/bg_success.png') center / cover no-repeat;
    background-color: #f7f9fc;
    padding: 48px 0;
    justify-content: flex-start;
}

.cases-partners .container {
    max-width: 1600px;
}

.cp-block + .cp-block {
    margin-top: 36px;
}

.cp-title {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-family: 'Alibaba PuHuiTi 3.0', 'Alibaba PuHuiTi', '阿里巴巴普惠体',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 30px;
    font-weight: 500;
    line-height: 60px;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #333333;
    margin: 0;
}

/* 中文标题底部蓝色高亮条 */
.cp-title-cn {
    position: relative;
    display: inline-block;
    z-index: 1;
}

.cp-title-cn::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 14px;
    width: 114px;
    height: 16px;
    opacity: 0.4;
    background: #0162e4;
    z-index: -1;
}

.cp-title-en {
    font-family: 'Alibaba PuHuiTi 3.0', 'Alibaba PuHuiTi', '阿里巴巴普惠体',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 20px;
    font-weight: 500;
    line-height: 20px;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #999999;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 16px;
}

.case-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
    background: #fff;
}

.case-card img {
    width: 100%;
    height: calc(100% - 56px);
    object-fit: cover;
    transition: transform 0.6s ease;
}

.case-card:hover img {
    transform: scale(1.04);
}

.case-bar {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    background: #ffffff;
}

.case-bar h3 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.case-more {
    display: inline-flex;
    align-items: center;
    height: 32px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid #e5e7eb;
    background: #f7f8fa;
    color: #666;
    font-size: 13px;
    line-height: 1;
    white-space: nowrap;
    transition: color var(--transition), border-color var(--transition),
        background var(--transition);
}

.case-card:hover .case-more {
    color: var(--primary);
    border-color: #c9dcff;
    background: #eef4ff;
    transform: none;
}

/* 合作伙伴：左右 4x2 logo + 中间蓝块 */
.partners-layout {
    margin-top: 16px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 16px;
    align-items: center;
}

.partners-col {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px 12px;
}

.partners-col--left {
    padding-left: 0;
    justify-items: start;
}

.partners-col--right {
    padding-right: 0;
    justify-items: end;
}

.partner-logo {
    width: 100%;
    height: 58px;
    opacity: 1;
    background: #ffffff;
    box-shadow: 0 0 15px 0 rgba(0, 0, 0, 0.05);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 8px;
    box-sizing: border-box;
    transition: transform var(--transition), box-shadow var(--transition);
}

.partner-logo:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px 0 rgba(0, 0, 0, 0.08);
}

.partner-logo img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

/* --- 文字型品牌 logo --- */
.partner-logo--text {
    padding: 8px 8px;
}

.partner-text {
    font-family: 'Helvetica Neue', 'Arial', 'PingFang SC',
        'Microsoft YaHei', sans-serif;
    line-height: 1;
    white-space: nowrap;
}

.partner-text--vodafone {
    font-size: 17px;
    font-weight: 700;
    color: #E60000;
    letter-spacing: -0.03em;
}

.partner-text--cmcc {
    font-size: 16px;
    font-weight: 700;
    color: #0066B3;
    letter-spacing: 0.02em;
}

.partner-text--unicom {
    font-size: 16px;
    font-weight: 700;
    color: #F23030;
    letter-spacing: 0.02em;
}

.partner-text--ctcc {
    font-size: 16px;
    font-weight: 700;
    color: #0F4C9C;
    letter-spacing: 0.02em;
}

.partner-text--dhl {
    font-size: 18px;
    font-weight: 900;
    color: #FFCC00;
    background: #D40511;
    padding: 3px 10px;
    border-radius: 4px;
    letter-spacing: 0.02em;
}

.partner-text--maersk {
    font-size: 17px;
    font-weight: 700;
    color: #003D63;
    letter-spacing: -0.01em;
}

.partner-text--kn {
    font-size: 13px;
    font-weight: 700;
    color: #003D63;
    letter-spacing: -0.02em;
}

.partner-text--schenker {
    font-size: 14px;
    font-weight: 700;
    color: #EC0017;
    letter-spacing: -0.01em;
}

.partners-center {
    position: relative;
    width: 360px;
    height: 170px;
    flex: 0 0 360px;
}

.partners-center-bg {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: fill;
}

.partners-center-text {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    text-align: center;
    pointer-events: none;
}

.partners-center-num {
    font-size: 52px;
    font-weight: 700;
    line-height: 1.1;
}

.partners-center-label {
    margin-top: 6px;
    font-size: 22px;
    font-weight: 500;
}

.partners-center-text p {
    margin-top: 10px;
    font-size: 14px;
    opacity: 0.95;
}

/* 中等桌面：等比缩小，避免挤出视口 */
@media (max-width: 1580px) {
    .partner-logo {
        height: 48px;
        padding: 6px 6px;
    }

    .partner-text--vodafone { font-size: 13px; }
    .partner-text--cmcc { font-size: 12px; }
    .partner-text--unicom { font-size: 12px; }
    .partner-text--ctcc { font-size: 12px; }
    .partner-text--dhl { font-size: 14px; padding: 2px 8px; }
    .partner-text--maersk { font-size: 13px; }
    .partner-text--kn { font-size: 10px; }
    .partner-text--schenker { font-size: 11px; }

    .partners-center {
        width: 280px;
        height: 130px;
        flex-basis: 280px;
    }

    .partners-center-num {
        font-size: 38px;
    }

    .partners-center-label {
        font-size: 15px;
    }
}

@media (max-width: 1280px) {
    .partner-logo {
        height: 42px;
        padding: 4px 4px;
    }

    .partner-text--vodafone { font-size: 10px; }
    .partner-text--cmcc { font-size: 9px; }
    .partner-text--unicom { font-size: 9px; }
    .partner-text--ctcc { font-size: 9px; }
    .partner-text--dhl { font-size: 11px; padding: 2px 6px; }
    .partner-text--maersk { font-size: 10px; }
    .partner-text--kn { font-size: 8px; }
    .partner-text--schenker { font-size: 9px; }

    .partners-center {
        width: 220px;
        height: 110px;
        flex-basis: 220px;
    }

    .partners-center-num {
        font-size: 30px;
    }

    .partners-center-label {
        font-size: 13px;
    }

    .partners-center-text p {
        font-size: 11px;
    }

    .adv-card {
        width: 320px;
        height: 480px;
        padding: 24px 28px 28px;
    }

    .adv-icon,
    .adv-icon img {
        width: 200px;
        height: 200px;
    }

    .adv-bar {
        left: 28px;
        top: 400px;
    }

    .adv-card p {
        left: 28px;
        right: 28px;
        top: 420px;
        font-size: 14px;
    }

    .adv-card h3 {
        font-size: 24px;
    }
}

/* ========== 资质荣誉 ========== */
.certs {
    /* 与背景图主色一致，避免 cover 裁切时露白边 */
    background: #e4eef9;
    height: 100vh;
    min-height: 100vh;
    max-height: 100vh;
    padding: 0;
    overflow: hidden;
    display: block;
}

/* 背景图铺满整屏（拉伸填满，避免白边，且与证书 % 坐标一致） */
.certs-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: fill;
    z-index: 0;
    pointer-events: none;
    user-select: none;
}

.certs-content {
    position: relative;
    z-index: 2;
    max-width: 1600px;
    height: 100%;
    padding-top: clamp(72px, 8vh, 120px);
    box-sizing: border-box;
}

.certs-layout {
    display: block;
    margin-top: clamp(16px, 3vh, 40px);
}

.certs-copy {
    max-width: 480px;
}

.certs-headline {
    font-family: 'Alimama ShuHeiTi', '阿里妈妈数黑体', 'PingFang SC',
        'Microsoft YaHei', sans-serif;
    font-size: 40px;
    font-weight: bold;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #222222;
    margin: 0 0 48px;
}

.cert-stats {
    display: flex;
    flex-direction: column;
    gap: 36px;
    align-items: flex-start;
}

.cert-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 260px;
}

.cert-stat-medal {
    position: relative;
    width: 260px;
    height: 98px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cert-stat-laurel {
    position: absolute;
    inset: 0;
    width: 260px;
    height: 98px;
    object-fit: fill;
    pointer-events: none;
}

.cert-stat-text {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.cert-stat-value {
    display: inline-flex;
    align-items: baseline;
    justify-content: center;
    font-family: 'Alibaba PuHuiTi 3.0', 'Alibaba PuHuiTi', '阿里巴巴普惠体',
        'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-weight: 600;
    line-height: 1;
    color: #0162e4;
    font-variation-settings: 'opsz' auto;
}

.cert-stat-value em {
    font-style: normal;
    font-family: inherit;
    font-weight: 600;
    font-size: 60px;
    font-variation-settings: 'opsz' auto;
    line-height: 1;
}

.cert-stat-unit {
    font-family: inherit;
    font-weight: 600;
    font-size: 30px;
    font-variation-settings: 'opsz' auto;
    line-height: 1;
    margin-left: 2px;
}

.cert-stat-label {
    margin-top: 2px;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.2;
    color: #333333;
    text-align: center;
}

/*
 * 证书展台：相对整屏定位（与 cover 背景同一视口）
 * left = 柱顶水平中心，bottom = 柱顶高度，transform 水平居中
 */
.certs-stage {
    position: absolute;
    inset: 0;
    z-index: 1;
    margin: 0;
    padding: 0;
    pointer-events: none;
}

.cert-podium {
    position: absolute;
    box-sizing: border-box;
    filter: drop-shadow(0 16px 24px rgba(10, 42, 107, 0.18));
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: transform;
    pointer-events: auto;
    transform: translateX(-50%);
}

.cert-podium-border,
.cert-podium-photo {
    position: absolute;
    display: block;
    max-width: none;
}

/* 边框在下（中心为不透明白底） */
.cert-podium-border {
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: fill;
    z-index: 1;
    pointer-events: none;
}

/* 证书叠在边框白区内，露出蓝色外框 */
.cert-podium-photo {
    z-index: 2;
    object-fit: cover;
}

/* 左柱横版：边框 438×310；白区内侧约 24,19 / 390×264 */
.cert-podium--1 {
    left: 54.5%;
    bottom: 23%;
    width: calc(438 / 1920 * 100%);
    aspect-ratio: 438 / 310;
    z-index: 3;
}

.cert-podium--1 .cert-podium-photo {
    left: calc(24 / 438 * 100%);
    top: calc(19 / 310 * 100%);
    width: calc(390 / 438 * 100%);
    height: calc(264 / 310 * 100%);
    transform: none;
}

/* 中柱竖版：边框 316×430；白区内侧约 21,17 / 274×390 */
.cert-podium--2 {
    left: 68.5%;
    bottom: 44.5%;
    width: calc(316 / 1920 * 100%);
    aspect-ratio: 316 / 430;
    z-index: 1;
}

.cert-podium--2 .cert-podium-photo {
    left: calc(21 / 316 * 100%);
    top: calc(17 / 430 * 100%);
    width: calc(274 / 316 * 100%);
    height: calc(390 / 430 * 100%);
    transform: none;
}

/* 右柱竖版：边框 316×430；证书 274×386.95 */
.cert-podium--3 {
    left: 84.5%;
    bottom: 30%;
    width: calc(316 / 1920 * 100%);
    aspect-ratio: 316 / 430;
    z-index: 2;
}

.cert-podium--3 .cert-podium-photo {
    left: calc(21 / 316 * 100%);
    top: calc(21.5 / 430 * 100%);
    width: calc(274 / 316 * 100%);
    height: calc(386.95 / 430 * 100%);
    transform: none;
}

.certs-stage:hover .cert-podium--1 {
    transform: translateX(-50%) translateY(-6px);
}

.certs-stage:hover .cert-podium--2 {
    transform: translateX(-50%) translateY(-10px);
}

.certs-stage:hover .cert-podium--3 {
    transform: translateX(-50%) translateY(-6px);
}

@media (max-width: 1600px) {
    .certs-content {
        padding-top: clamp(64px, 7vh, 100px);
    }

    .certs-headline {
        font-size: 36px;
        margin-bottom: 40px;
    }
}

@media (max-width: 1440px) {
    .certs-headline {
        font-size: 34px;
        margin-bottom: 32px;
    }

    .cert-podium--1 {
        left: 54%;
        bottom: 28.5%;
    }

    .cert-podium--2 {
        left: 68%;
        bottom: 41.5%;
    }

    .cert-podium--3 {
        left: 81%;
        bottom: 33.5%;
    }
}

@media (max-width: 1200px) {
    .certs-headline {
        font-size: 30px;
        margin-bottom: 28px;
    }

    .cert-stat-label {
        font-size: 16px;
    }

    .cert-podium--1 {
        left: 53.5%;
        bottom: 28%;
    }

    .cert-podium--2 {
        left: 67.5%;
        bottom: 41%;
    }

    .cert-podium--3 {
        left: 80.5%;
        bottom: 33%;
    }
}

/* ========== CTA + 收尾 ========== */
.cta-band {
    position: relative;
    width: 100%;
    flex: 1 1 auto;
    min-height: 0;
    height: auto;
    background: url('../image/index/bg_zhuizong.webp') center / cover no-repeat;
    display: flex;
    align-items: center;
    box-sizing: border-box;
}

.cta-copy {
    position: relative;
    z-index: 1;
    margin-left: 120px;
}

.cta-copy h2 {
    font-family: 'Alimama ShuHeiTi', '阿里妈妈数黑体', 'PingFang SC',
        'Microsoft YaHei', sans-serif;
    font-size: 50px;
    font-weight: bold;
    line-height: 80px;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #333333;
    margin-bottom: 16px;
}

.cta-copy p {
    font-family: 'Source Han Sans', 'Source Han Sans SC', '思源黑体',
        'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 36px;
    font-weight: normal;
    line-height: 40px;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    color: #333333;
    margin-bottom: 36px;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 186px;
    height: 60px;
    border-radius: 50px;
    background: #0162e4;
    color: #ffffff;
    font-size: 20px;
    font-weight: 500;
    line-height: normal;
    text-align: center;
    letter-spacing: 0em;
    font-variation-settings: 'opsz' auto;
    font-feature-settings: 'kern' on;
    text-decoration: none;
    opacity: 1;
    transition: transform var(--transition), box-shadow var(--transition);
    box-sizing: border-box;
}

.cta-btn img {
    width: 24px;
    height: 24px;
    display: block;
    flex-shrink: 0;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(1, 98, 228, 0.35);
}

/* ========== CTA 结束 ========== */

/* 响应式 */
@media (max-width: 1024px) {
    .hero-copy {
        margin-left: 40px;
    }

    .hero-copy h1 {
        font-size: 48px;
        line-height: 64px;
    }

    .hero-copy--track h1,
    .hero-copy--track h2 {
        font-size: 48px;
        line-height: 64px;
    }

    .hero-sub {
        font-size: 24px;
        margin-bottom: 28px;
    }

    .hero-features {
        gap: 10px 20px;
        max-width: 560px;
        margin-bottom: 24px;
    }

    .hero-feature-icon {
        width: 56px;
        height: 56px;
    }

    .hero-features strong {
        font-size: 18px;
    }

    .hero-features li > span {
        font-size: 16px;
    }

    .btn-hero-demo {
        width: 240px;
        min-width: 240px;
        height: 96px;
        font-size: 20px;
    }

    .hero-lead {
        font-size: 22px;
    }

    .hero-dots {
        left: 40px;
        bottom: 40px;
    }

    .adv-grid {
        gap: 20px;
    }

    .adv-card {
        width: 360px;
        height: 540px;
        padding: 28px 32px 32px;
    }

    .adv-icon,
    .adv-icon img {
        width: 220px;
        height: 220px;
    }

    .adv-bar {
        left: 32px;
        top: 430px;
    }

    .adv-card p {
        left: 32px;
        right: 32px;
        top: 452px;
    }

    .cta-copy {
        margin-left: 40px;
        margin-right: 40px;
        max-width: none;
    }

    .certs {
        height: 100vh;
        min-height: 100vh;
        max-height: 100vh;
        overflow: hidden;
        padding: 0;
    }

    .certs-content {
        padding-top: clamp(64px, 8vh, 96px);
    }

    .certs-copy {
        max-width: 420px;
    }
}

@media (max-width: 720px) {
    html.fullpage-mode {
        scroll-snap-type: none;
    }

    .fullpage-section {
        height: auto;
        min-height: auto;
        max-height: none;
        scroll-snap-align: none;
        scroll-snap-stop: normal;
        padding: 64px 0;
        overflow: visible;
    }

    .hero {
        min-height: 100vh;
        height: 100vh;
        max-height: 100vh;
        overflow: hidden;
        scroll-snap-align: none;
        padding: 0;
    }

    .hero-copy {
        margin-left: 24px;
        padding-right: 24px;
    }

    .hero-copy h1 {
        font-size: 36px;
        line-height: 48px;
    }

    .hero-copy--track h1,
    .hero-copy--track h2 {
        font-size: 32px;
        line-height: 44px;
    }

    .hero-badge {
        width: auto;
        max-width: 100%;
        height: 36px;
        padding: 0 14px;
        font-size: 14px;
        margin-bottom: 16px;
    }

    .hero-badge-icon {
        width: 22px;
        height: 22px;
    }

    .hero-sub {
        font-size: 16px;
        margin-bottom: 24px;
    }

    .hero-features {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px 20px;
        max-width: 320px;
        margin-bottom: 20px;
    }

    .hero-feature-icon {
        width: 48px;
        height: 48px;
    }

    .hero-features strong {
        font-size: 16px;
    }

    .hero-features li > span {
        font-size: 14px;
    }

    .hero-slide--track {
        background-position: 70% center;
    }

    .btn-hero-demo {
        width: 200px;
        min-width: 200px;
        height: 80px;
        font-size: 18px;
        padding: 0 24px;
    }

    .hero-phone {
        font-size: 20px;
        line-height: 24px;
    }

    .hero-phone-text {
        font-size: 16px;
    }

    .hero-dots {
        left: 24px;
        bottom: 28px;
    }

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

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

    .partners-col {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        width: 100%;
        max-width: 520px;
    }

    .partner-logo {
        width: 100%;
        height: 56px;
    }

    .partner-text--vodafone { font-size: 14px; }
    .partner-text--cmcc { font-size: 13px; }
    .partner-text--unicom { font-size: 13px; }
    .partner-text--ctcc { font-size: 13px; }
    .partner-text--dhl { font-size: 15px; padding: 3px 8px; }
    .partner-text--maersk { font-size: 14px; }
    .partner-text--kn { font-size: 11px; }
    .partner-text--schenker { font-size: 12px; }

    .partners-center {
        width: 100%;
        max-width: 520px;
        height: auto;
        aspect-ratio: 520 / 260;
        flex-basis: auto;
    }

    .partners-center-num {
        font-size: 42px;
    }

    .adv-card {
        width: 100%;
        max-width: 400px;
        height: auto;
        min-height: 480px;
        margin: 0 auto;
    }

    .adv-bar {
        position: static;
        display: block;
        margin: 16px 0 12px;
    }

    .adv-card p {
        position: static;
        margin-bottom: 16px;
    }

    .adv-icon,
    .adv-icon img {
        width: 200px;
        height: 200px;
    }

    .hero-nav-btn {
        display: none;
    }

    .section-title {
        font-size: 24px;
    }

    .certs-headline {
        font-size: 28px;
        margin-bottom: 28px;
    }

    .cta-copy {
        margin-left: 24px;
        margin-right: 24px;
    }

    .cta-copy h2 {
        font-size: 32px;
        line-height: 48px;
    }

    .cta-copy p {
        font-size: 22px;
        line-height: 28px;
    }

    .cta-band {
        flex: none;
        min-height: 420px;
        height: auto;
        padding: 64px 0;
    }

    .cert-stat {
        width: 208px;
    }

    .cert-stat-medal,
    .cert-stat-laurel {
        width: 208px;
        height: 78px;
    }

    .cert-stat-value em {
        font-size: 48px;
    }

    .cert-stat-unit {
        font-size: 24px;
    }

    .cert-stat-label {
        font-size: 16px;
    }
}