/* =============================================
   且丰园官网 - PC端样式
   参考比例: jingying361.cn
   内容区: 1200px 居中
   ============================================= */

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    color: #333;
    background: #fff;
    overflow: hidden;
    width: 100vw;
    height: 100vh;
    line-height: 1.6;
    font-family: serif;
}

#page {
    width: 1920px;
    overflow-y: auto;
    scroll-snap-type: y mandatory;
    position: relative;
}

section[id] {
    scroll-snap-align: start;
    /* 锚点跳转时避开固定 header */
    scroll-margin-top: 60px;
}

a {
    text-decoration: none;
    color: inherit;
}

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

/* =============================================
   Header  60px高, 内容1200px居中
   ============================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: #fff;
}

.header.scrolled {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.header-inner {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.logo img {
    height: 30px;
    width: auto;
}

.nav {
    display: flex;
    align-items: center;
    margin-right: 200px;
}

.nav-link {
    font-size: 16px;
    color: #555;
    position: relative;
    padding: 0 40px;
    height: 60px;
    line-height: 60px;
    transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: #c41a1a;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: #c41a1a;
}

/* =============================================
   Hero Banner  全宽, 图片自适应
   ============================================= */
.hero {
    position: relative;
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    /* 视频完整显示后的两侧留边底色 (深色) */
    background: #fff;
}

.hero-slide {
    width: 100%;
    flex: 1;
    /* flex 项默认 min-height:auto, 会被 <video> 的固有高度(1920 宽时 1080px)撑破,
       使视频元素溢出首屏、底部被 .hero 的 overflow:hidden 裁掉 */
    min-height: 0;
}

.hero-bg {
    width: 100%;
    height: 100%;
    /* 横向铺满首屏, 纵向高度保持首屏高度 (画面会被横向拉伸约 20%) */
    object-fit: fill;
    display: block;
}

.hero-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.hero-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s;
}

.hero-dots .dot.active {
    background: #fff;
}

/* Hero 右下角「查看完整视频」: 播放图标在上, 文字在下, 均白色 */
.hero-cta {
    position: absolute;
    right: 60px;
    bottom: 60px;
    z-index: 5;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 0;
    border: none;
    background: none;
    color: #fff;
    cursor: pointer;
    transition: opacity 0.3s, transform 0.3s;
}

.hero-cta:hover {
    opacity: 0.85;
    transform: translateY(-3px);
}

.hero-cta-icon {
    display: block;
    width: 48px;
    height: 48px;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.55));
}

.hero-cta-text {
    font-size: 15px;
    letter-spacing: 1px;
    color: #fff;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.7);
}

/* =============================================
   About Section  全宽背景, 内容1200px, 全屏高度
   ============================================= */
.about {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.about-bg {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    margin: 0 auto;
    background-image: url('../images/背景底图.jpg');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}

.about-inner {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    position: relative;
    padding: 80px 100px 40px;
}

.about-col {
    width: 50%;
    position: relative;
}

.about-left {
    text-align: left;
    padding-right: 20px;
}

.about-right {
    text-align: right;
    padding-left: 20px;
}

/* about enter animation */
.about-left,
.about-right,
.about-bottom-labels {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.about-left {
    transform: translateX(-60px);
}

.about-right {
    transform: translateX(60px);
}

.about-bottom-labels {
    transform: translateY(30px);
}

.about.about-enter .about-left,
.about.about-enter .about-right,
.about.about-enter .about-bottom-labels {
    opacity: 1;
    transform: translateX(0) translateY(0);
}

.about.about-enter .about-left { transition-delay: 0s; }
.about.about-enter .about-right { transition-delay: 0.12s; }
.about.about-enter .about-bottom-labels { transition-delay: 0.24s; }

.about-title {
    font-size: 28px;
    color: #c41a1a;
    margin-bottom: 8px;
    position: relative;
    z-index: 2;
}
.content {
    display: flex;
    align-items: center;
}
.about-title-logo {
    height: 24px;
    width: auto;
    display: inline-block;
}

.about-link {
    font-size: 20px;
    color: #c41a1a;
    position: relative;
    z-index: 2;
    display: inline-block;
    margin: 6px 0 50px 0;
}

.about-img-wrap {
    position: relative;
    z-index: 1;
}

.about-left .about-img-wrap {
    width: 100%;
}

.about-right .about-img-wrap {
    width: 100%;
    display: flex;
    justify-content: flex-end;
}

.about-img {
    width: 660px;
    height: 540px;
    object-fit: cover;
}

/* Red Blocks */
.red-left {
    position: absolute;
    bottom: 0;
    right: 30px;
    width: 55%;
    max-width: 400px;
    min-width: 280px;
    min-height: 240px;
    background: #c41a1a;
    color: #fff;
    z-index: 10;
    padding: 20px 24px;
}

.red-left p {
    font-size: 16px;
    line-height: 2;
    text-align: right;
}

.red-right {
    position: absolute;
    bottom: 0;
    left: 30px;
    width: 55%;
    max-width: 400px;
    min-width: 280px;
    min-height: 240px;
    background: #c41a1a;
    color: #fff;
    z-index: 10;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.red-right p {
    font-size: 16px;
    line-height: 2.4;
    text-align: left;
    white-space: nowrap;
}

.red-right strong {
    font-weight: bold;
}

/* Bottom Labels */
.about-bottom-labels {
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 18px 0 70px 0;
}

.label-left {
    font-size: 16px;
    color: #c41a1a;
}

.label-right {
    font-size: 16px;
    color: #c41a1a;
    display: flex;
    align-items: center;
    gap: 8px;
}
.label-right img {
    height: 16px;
}
/* =============================================
   Products Section  mb50, 标题48px
   ============================================= */
.products {
    background: #fff;
    padding: 30px 0 60px 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.products-header,
.carousel-wrapper,
.products-cta {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.products-header {
    transform: translateY(-30px);
}

.carousel-wrapper {
    transform: scale(0.92);
}

.products-cta {
    transform: translateY(30px);
}

.products.products-enter .products-header,
.products.products-enter .carousel-wrapper,
.products.products-enter .products-cta {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.products.products-enter .products-header {
    transition-delay: 0s;
}

.products.products-enter .carousel-wrapper {
    transition-delay: 0.15s;
}

.products.products-enter .products-cta {
    transition-delay: 0.3s;
}

.products-header {
    text-align: center;
    margin-bottom: 20px;
    width: 100%;
    max-width: 1400px;
    padding: 0 100px;
}

.section-title {
    font-size: 42px;
    color: #c41a1a;
    font-weight: bold;
    height: 70px;
    line-height: 70px;
}

.section-subtitle {
    font-size: 16px;
    color: #c41a1a;
    display: flex;
    align-items: center;
    justify-content: center;
}
.section-subtitle img {
    height: 16px;
    width: auto;
}
/* Carousel */
.carousel-wrapper {
    position: relative;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.carousel-viewport {
    overflow: hidden;
    margin: 0;
}

.carousel-track {
    display: flex;
    gap: 30px;
    transition: transform 0.5s ease;
    will-change: transform;
}

.product-card {
    width: calc((100% - 60px) / 3);
    min-width: calc((100% - 60px) / 3);
    max-width: calc((100% - 60px) / 3);
    flex-shrink: 0;
}

.product-img-wrap {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    border-radius: 3px;
}

.product-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
}

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

.product-desc {
    font-size: 16px;
    color: #000;
    margin-top: 18px;
    text-align: center;
    line-height: 1.8;
}

/* Arrows */
/* =============================================
   Carousel Dots  底部指示器
   ============================================= */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 26px;
    padding: 30px 0 0 0;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #999;
    cursor: pointer;
    transition: background 0.3s;
}

.carousel-dot.active {
    background: #c41a1a;
}

/* =============================================
   Page Navigation Dots  右侧固定导航
   ============================================= */
.page-dots {
    position: fixed;
    right: 50px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    z-index: 999;
}

.p-dot {
    display: block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid #c41a1a;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.p-dot:hover {
    transform: scale(1.4);
    border-color: #c41a1a;
}

.p-dot.active {
    background: #c41a1a;
    transform: scale(1.2);
    box-shadow: 0 0 6px rgba(196, 26, 26, 0.5);
}

.p-dot:hover {
    transform: scale(1.3);
}

.p-dot.active {
    background: #c41a1a;
}

/* CTA */
.products-cta {
    display: flex;
    justify-content: center;
    align-items: stretch;
    margin-top: 40px;
    margin-bottom: 0;
}

.cta-text {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    color: #c41a1a;
    border: 2px solid #c41a1a;
    padding: 14px 40px;
    border-right: none;
}

.cta-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #c41a1a;
    color: #fff;
    font-size: 20px;
    padding: 14px 35px;
    border: 2px solid #c41a1a;
    transition: background 0.3s;
    letter-spacing: 1px;
}

.cta-btn:hover {
    background: #a01515;
}

/* =============================================
   Info Cards  1200px 4列
   ============================================= */
.info-cards {
    background: #fff;
    display: flex;
    flex-direction: column;
}

.info-cards-inner {
    flex: 1;
    width: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 0 112px;
    align-content: center;
}

@keyframes cardShow {
    0% {
        opacity: 0.05;
        transform: scale(0.85);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.95);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.contact-enter .info-card {
    animation: cardShow 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.info-card {
    padding: 35px 28px 25px;
    position: relative;
    aspect-ratio: 3 / 4;
    display: flex;
    flex-direction: column;
    justify-content: center;
    cursor: pointer;
    transition: background 0.3s, color 0.3s;
}

.card-light {
    background: #f2f0ed;
}

.card-red,
.card-active {
    background: #c41a1a;
    color: #fff;
}

.card-title {
    font-size: 26px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #c41a1a;
    transition: color 0.3s;
}

.card-red .card-title,
.card-active .card-title {
    color: #fff;
}

.card-body {
    flex: 1;
    font-size: 15px;
    line-height: 2;
}

.card-body p {
    margin-bottom: 2px;
}

.card-hotline {
    margin-top: 25px !important;
    font-size: 15px;
}

.card-icon {
    margin-top: 15px;
    display: flex;
    align-items: flex-end;
}

.card-icon img {
    width: 50px;
    height: auto;
    opacity: 1;
    transition: opacity 0.3s;
}

.card-red .card-icon img,
.card-active .card-icon img {
    opacity: 1;
}

/* Active state overrides for inner elements */
.card-active .time-range,
.card-active .contact-label {
    color: #fff;
}

.card-active .target-dot {
    border-color: #fff;
}

.card-active .target-dot::after {
    background: #fff;
}

.card-active .time-desc,
.card-active .contact-value {
    color: rgba(255, 255, 255, 0.8);
}

/* Time Items */
.time-item {
    margin-bottom: 10px;
}

.time-range {
    font-size: 15px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.target-dot {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid #c41a1a;
    flex-shrink: 0;
    position: relative;
}

.target-dot::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #c41a1a;
}

.time-desc {
    font-size: 15px;
    color: #555;
    padding-left: 13px;
    margin-top: 2px;
}

/* Contact Items */
.contact-item {
    margin-bottom: 12px;
}

.contact-line {
    display: flex;
    align-items: center;
    gap: 7px;
}

.contact-label {
    font-size: 15px;
}

.contact-value {
    font-size: 15px;
    color: #555;
    margin-top: 2px;
    padding-left: 21px;
}

/* =============================================
   Footer  全宽, 内容1200px
   ============================================= */
.footer {
    color: #fff;
    padding: 0 20px;
    width: 100%;
    background: #4A2610;
}

.footer-inner {
    padding: 0 60px;
    height: 60px;
    margin: 0 auto;
    display: flex;
    padding: 0 112px;
    align-items: center;
    justify-content: space-between;
}

.footer-platforms {
    display: flex;
    align-items: center;
    gap: 20px;
}

.platform-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    transition: color 0.3s;
}

.platform-item:hover {
    color: #c41a1a;
}

.platform-item img {
    width: 16px;
    height: 16px;
    object-fit: contain;
}

.platform-item:hover img {
    filter: invert(30%) sepia(100%) saturate(5000%) hue-rotate(350deg) brightness(70%);
}

.footer-info {
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-divider {
    color: #ccc;
}

/* =============================================
   Back to Top Button  浮动回到顶部
   ============================================= */
.back-to-top-btn {
    position: fixed;
    bottom: 100px;
    right: 40px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #c41a1a;
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s, visibility 0.3s, transform 0.3s, background 0.3s;
    z-index: 999;
    box-shadow: 0 2px 8px rgba(196, 26, 26, 0.3);
}

.back-to-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top-btn:hover {
    background: #a01515;
    box-shadow: 0 4px 12px rgba(196, 26, 26, 0.4);
}

.back-to-top-btn:active {
    transform: scale(0.95);
}

/* =============================================
   Video Modal  完整视频弹窗
   ============================================= */
.video-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 64px 40px 40px;
}

.video-modal.open {
    display: flex;
}

.video-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.88);
    cursor: pointer;
}

.video-modal-body {
    position: relative;
    width: min(1120px, 100%);
}

.video-modal-el {
    display: block;
    width: 100%;
    height: auto;
    max-height: calc(100vh - 104px);
    object-fit: contain;
    background: #000;
}

.video-modal-close {
    position: absolute;
    top: -44px;
    right: 0;
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    background: none;
    color: #fff;
    cursor: pointer;
    opacity: 0.75;
    transition: opacity 0.3s;
}

.video-modal-close:hover {
    opacity: 1;
}

.video-modal-close svg {
    display: block;
    width: 100%;
    height: 100%;
}

/* 弹窗打开时锁住背景滚动: #page 管 PC 的缩放容器, html/body 管移动端视口 */
html.modal-open,
html.modal-open body,
html.modal-open #page {
    overflow: hidden;
}

/* =============================================
   移动端 / 平板适配  (<= 1024px)
   PC 端是 1920px 画布 + JS 整体缩放, 窄屏下文字会被缩到不可读,
   此段改为响应式重排, 布局完全交给 CSS, JS 侧同步切换模式
   ============================================= */
@media (max-width: 1024px) {

    /* ----- 解除 PC 缩放容器 (JS 会写内联样式, 需 !important 压制) ----- */
    body {
        overflow-x: hidden;
        overflow-y: auto;
        width: 100%;
        height: auto;
    }

    #page {
        width: 100% !important;
        height: auto !important;
        overflow: visible;
        scroll-snap-type: none;
        transform: none !important;
        position: static !important;
        left: auto !important;
        top: auto !important;
    }

    section[id] {
        min-height: auto !important;
        scroll-snap-align: none;
    }

    .hero {
        height: auto !important;
    }

    /* ----- Header / 导航 ----- */
    .header-inner {
        width: 100%;
        padding: 0 16px;
    }

    .nav {
        margin-right: 0;
    }

    .nav-link {
        font-size: 14px;
        padding: 0 10px;
    }

    .logo img {
        height: 26px;
    }

    /* ----- Hero: 按原图比例完整显示, 不裁切 ----- */
    .hero-slide {
        flex: none;
    }

    .hero-bg {
        width: 100%;
        height: auto;
        object-fit: contain;
        /* 视频元数据到位前没有固有尺寸, 显式比例避免首屏高度塌陷
           注意是 16:9 而非 960:544 —— 素材像素比是 136:135, 显示比例为 16:9 */
        aspect-ratio: 16 / 9;
    }

    .hero-cta {
        right: 16px;
        /* 视频内嵌字幕固定在画面底部约 85% 处, 用百分比偏移跟随视频高度,
           避免窄屏时「查看完整视频」与字幕挤在同一行、互相遮挡 */
        bottom: 20%;
        gap: 6px;
    }

    .hero-cta-icon {
        width: 34px;
        height: 34px;
    }

    .hero-cta-text {
        font-size: 12px;
    }

    .video-modal {
        padding: 56px 16px 16px;
    }

    .video-modal-el {
        max-height: calc(100vh - 72px);
    }

    .video-modal-close {
        top: -38px;
        width: 28px;
        height: 28px;
    }

    /* ----- About: 左右两栏改上下堆叠 ----- */
    .about {
        min-height: auto;
        /* padding: 32px 0; */
    }

    .about-bg {
        background-size: cover;
        background-position: top center;
    }

    .about-inner {
        display: block;
        padding: 8px 16px 16px;
    }

    .about-col {
        width: 100%;
    }

    .about-left,
    .about-right {
        padding-left: 0;
        padding-right: 0;
    }

    /* 堆叠后统一左对齐, 右对齐的窄栏中文很难读 */
    .about-right {
        text-align: left;
    }

    /* 横向滑入会把全宽栏顶出视口, 窄屏改纵向位移, 从源头消除横向溢出 */
    .about-left,
    .about-right {
        transform: translateY(24px);
    }

    .about-title {
        font-size: 20px;
    }

    .about-title-logo {
        height: 18px;
    }

    .about-link {
        font-size: 15px;
        margin: 6px 0 20px 0;
    }

    .about-img {
        width: 100%;
        height: auto;
        aspect-ratio: 660 / 540;
        object-fit: cover;
    }

    /* 红色文字块: 由角落浮层改为压在图片底部的通栏色带 */
    .red-left,
    .red-right {
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        max-width: none;
        min-width: 0;
        min-height: 0;
        padding: 12px 16px;
    }

    /* 堆叠后左右镜像失去意义, 统一左对齐更好读 */
    .red-left p,
    .red-right p {
        font-size: 12px;
        line-height: 1.9;
        text-align: left;
    }

    /* 必须解除 nowrap, 否则窄屏严重横向溢出 */
    .red-right p {
        white-space: normal;
    }

    .about-bottom-labels {
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
        padding: 16px 0 8px 0;
    }

    .label-left,
    .label-right {
        font-size: 12px;
    }

    .label-right {
        flex-wrap: wrap;
    }

    .label-right img {
        height: 12px;
    }

    /* ----- Products ----- */
    .products {
        min-height: auto;
        padding: 30px 0 40px 0;
    }

    .products-header {
        padding: 0 16px;
        margin-bottom: 20px;
    }

    .section-title {
        font-size: 22px;
        height: auto;
        line-height: 1.4;
    }

    .section-subtitle {
        font-size: 13px;
        flex-wrap: wrap;
        padding: 0 8px;
    }

    .carousel-wrapper {
        width: 100%;
        max-width: none;
        padding: 0 16px;
    }

    .carousel-track {
        gap: 16px;
    }

    /* 641-1024px 一屏两张 */
    .product-card {
        width: calc((100% - 16px) / 2);
        min-width: calc((100% - 16px) / 2);
        max-width: calc((100% - 16px) / 2);
    }

    .product-desc {
        font-size: 13px;
        margin-top: 10px;
        line-height: 1.6;
    }

    .carousel-dots {
        padding: 20px 0 0 0;
    }

    /* CTA 改纵向堆叠, 并保持两块边框拼合 */
    .products-cta {
        flex-direction: column;
        align-items: stretch;
        margin-top: 28px;
        padding: 0 16px;
    }

    .cta-text {
        font-size: 16px;
        padding: 12px 20px;
        border-right: 2px solid #c41a1a;
        border-bottom: none;
    }

    .cta-btn {
        font-size: 15px;
        padding: 12px 20px;
    }

    /* ----- Info Cards ----- */
    .info-cards {
        padding: 24px 0;
    }

    .info-cards-inner {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
        padding: 0 16px;
    }

    /* 固定 3:4 会让窄卡撑到 500px 高, 改自适应 */
    .info-card {
        aspect-ratio: auto;
        padding: 20px 18px;
    }

    .card-title {
        font-size: 19px;
        margin-bottom: 12px;
    }

    .card-body {
        font-size: 13px;
        line-height: 1.9;
    }

    .card-hotline {
        margin-top: 16px !important;
        font-size: 13px;
    }

    .card-icon img {
        width: 36px;
    }

    .time-range,
    .contact-label,
    .time-desc,
    .contact-value {
        font-size: 13px;
    }

    /* ----- Footer ----- */
    .footer {
        padding: 0;
    }

    .footer-inner {
        flex-direction: column;
        height: auto;
        padding: 18px 16px;
        gap: 14px;
        align-items: center;
    }

    .footer-platforms {
        flex-wrap: wrap;
        justify-content: center;
        gap: 14px;
    }

    .footer-info {
        flex-wrap: wrap;
        justify-content: center;
        text-align: center;
    }

    /* ----- 浮层 ----- */
    .page-dots {
        right: 8px;
        gap: 14px;
    }

    .p-dot {
        width: 9px;
        height: 9px;
        border-width: 1.5px;
    }

    .back-to-top-btn {
        width: 38px;
        height: 38px;
        right: 14px;
        bottom: 70px;
    }
}

/* =============================================
   手机细调  (<= 640px)
   ============================================= */
@media (max-width: 640px) {

    .header-inner {
        padding: 0 12px;
    }

    .nav-link {
        font-size: 13px;
        padding: 0 8px;
    }

    .logo img {
        height: 22px;
    }

    .about-inner {
        padding: 8px 12px 16px;
    }

    .about-img {
        aspect-ratio: 3 / 2;
    }

    .red-left p,
    .red-right p {
        font-size: 11px;
    }

    .products-header {
        padding: 0 12px;
    }

    .section-title {
        font-size: 19px;
    }

    .carousel-wrapper {
        padding: 0 12px;
    }

    .carousel-track {
        gap: 12px;
    }

    /* 一屏一张 */
    .product-card {
        width: 100%;
        min-width: 100%;
        max-width: 100%;
    }

    .products-cta {
        padding: 0 12px;
    }

    /* 单列 */
    .info-cards-inner {
        grid-template-columns: 1fr;
        padding: 0 12px;
    }

    /* 手机上右侧分页点会压到内容, 交给顶部导航高亮即可 */
    .page-dots {
        display: none;
    }

    .back-to-top-btn {
        right: 12px;
        bottom: 24px;
    }
}