* {
    box-sizing: border-box;
}

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

body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: #2f3338;
    background: #fff;
    -webkit-font-smoothing: antialiased;
}

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

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

.container {
    width: min(100%, 1240px);
    margin: 0 auto;
    /* padding: 0 24px; */
}

.product-page {
    min-height: 100vh;
    background: #fff;
}

.product-hero {
    position: relative;
    min-height: 470px;
    padding-top: 60px;
    overflow: hidden;
    background-image: url("https://sld2025.oss-cn-shanghai.aliyuncs.com/gw/bf58343fc13eb755d136487cefb5f172817a46f52dfa4-xg6cge-2x-1.png");
    /* 废弃 100% 100%，改用 cover 确保任何屏幕下比例正常 */
    background-size: cover; 
    background-position: center center;
    background-repeat: no-repeat;
    /* background-image: url("https://sld2025.oss-cn-shanghai.aliyuncs.com/gw/bf58343fc13eb755d136487cefb5f172817a46f52dfa4-xg6cge-2x-1.png");
    background-size: 100% 100%;
    background-position: center;
    background-repeat: no-repeat; */
    }

.product-hero-inner {
    position: relative;
    min-height: 410px;
    display: flex;
    align-items: center;
}

.product-hero-copy {
    position: relative;
    z-index: 2;
    max-width: 780px;
    padding-top: 20px;
}

.product-hero-copy h1 {
    margin: 0 0 28px;
    font-size: 56px;
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: 0;
    color: #2b2f35;
}

.product-hero-copy p {
    margin: 0;
    font-size: 18px;
    line-height: 1.8;
    font-weight: 600;
    color: #6d7888;
}

.product-hero-visual {
    position: absolute;
    right: -40px;
    top: 70px;
    width: 620px;
    height: 330px;
    pointer-events: none;
}

.hero-device {
    position: absolute;
    right: 120px;
    top: 10px;
    width: 260px;
    height: 160px;
    border: 18px solid #e73327;
    border-radius: 28px;
    background: linear-gradient(140deg, #f74c3c, #b71112);
    box-shadow: 0 24px 50px rgba(231, 48, 34, 0.22);
    transform: rotate(3deg);
}

.hero-device-screen {
    width: 100%;
    height: 100%;
    border-radius: 12px;
    background: linear-gradient(135deg, #fff 0%, #e8f8ff 52%, #cfeaf8 100%);
}

.hero-flow {
    position: absolute;
    right: 10px;
    width: 540px;
    height: 66px;
    border-radius: 50%;
    filter: blur(0.2px);
    transform: rotate(-14deg);
}

.flow-one {
    top: 178px;
    background: linear-gradient(90deg, rgba(255, 48, 14, 0.06), rgba(255, 48, 14, 0.74), rgba(54, 176, 246, 0.42), rgba(80, 199, 255, 0.04));
}

.flow-two {
    top: 218px;
    height: 92px;
    background: linear-gradient(90deg, rgba(255, 48, 14, 0.03), rgba(50, 172, 242, 0.62), rgba(50, 197, 255, 0.04));
}

.hero-icon {
    position: absolute;
    width: 52px;
    height: 52px;
    border: 1px solid rgba(43, 151, 221, 0.35);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.56);
    box-shadow: 0 12px 28px rgba(61, 148, 210, 0.14);
}

.hero-icon-a {
    left: 80px;
    bottom: 38px;
}

.hero-icon-b {
    left: 210px;
    bottom: 72px;
}

.hero-icon-c {
    right: 162px;
    bottom: 118px;
}

.hero-icon-d {
    right: 70px;
    top: 92px;
}

.product-tabs-wrap {
    position: sticky;
    top: 60px;
    z-index: 50;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 8px 28px rgba(57, 67, 84, 0.08);
}

.product-tabs {
    display: grid;
    /* 核心修改：不再强制平分三列，改为根据内容长短自动撑开宽度 */
    grid-template-columns: repeat(4, max-content);
    /* 让这三个 Tab 在容器里居中排列 */
    justify-content: center;
    /* 设置三个 Tab 之间的横向间距，可根据视觉效果微调 */
    gap: 50px;
    align-items: center;
    height: 82px;
}

.product-tab {
    position: relative;
    height: 82px;
    border: 0;
    background: transparent;
    color: #2f3338;
    opacity: 0.8;
    font: inherit;
    font-size: 16px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    cursor: pointer;
    /* 核心修改：强行约束文本在 PC 端必须单行展示，绝不换行 */
    white-space: nowrap;
}

.product-tab img {
    width: 34px;
    height: 34px;
    object-fit: contain;
}

.product-tab::after {
    content: "";
    position: absolute;
    left: 12%;
    right: 12%;
    bottom: 0;
    height: 4px;
    background: #ff3010;
    display: none;
}

.product-tab.active {
    color: #ff3010;
    opacity: 1;
}

.product-tab.active::after {
    display: block;
}

.product-panel {
    display: none;
}

.product-panel.active {
    display: block;
}

.mini-program-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(420px, 0.88fr);
    gap: 70px;
    padding-top: 78px;
    padding-bottom: 130px;
    align-items: start;
}

.product-copy h2,
.platform-copy h2,
.fleet-head h2 {
    margin: 0 0 26px;
    font-size: 34px;
    line-height: 1.25;
    color: #2f3338;
    letter-spacing: 0;
}

.product-copy>p,
.platform-copy p,
.fleet-head p {
    margin: 0;
    max-width: 660px;
    font-size: 14px;
    line-height: 2;
    color: #727b88;
}

.feature-list {
    margin-top: 62px;
    display: grid;
    gap: 26px;
}

.mini-feature-card {
    min-height: 140px;
    display: flex;
    align-items: center;
    gap: 26px;
    padding: 24px 34px;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 14px 38px rgba(151, 162, 179, 0.12);
}

.feature-list.simple .mini-feature-card {
    /* padding-left: 110px; */
}

.mini-feature-card img {
    width: 92px;
    height: 92px;
    flex: 0 0 auto;
    object-fit: contain;
}

.mini-feature-card h3 {
    margin: 0 0 10px;
    font-size: 16px;
    line-height: 1.5;
    color: #59616c;
}

.mini-feature-card p {
    margin: 0;
    font-size: 13px;
    line-height: 1.75;
    color: #9aa2ad;
}

.mini-visual {
    position: sticky;
    top: 178px;
    min-height: 800px;
    display: flex;
    justify-content: center;
}

.phone-shell {
    position: relative;
    width: 330px;
    height: 670px;
    padding: 26px 18px;
    border-radius: 28px;
    background: #f2f3f5;
    box-shadow: 0 24px 58px rgba(128, 138, 150, 0.16);
    overflow: hidden;
}

.phone-shell::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.58);
    backdrop-filter: blur(1.5px);
}

.phone-shell img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

.floating-label {
    position: absolute;
    z-index: 2;
    height: 58px;
    display: inline-flex;
    align-items: center;
    gap: 14px;
    padding: 0 18px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.86);
    box-shadow: 0 12px 30px rgba(61, 72, 88, 0.12);
    backdrop-filter: blur(8px);
    color: #31363d;
    font-size: 17px;
}

.label-icon {
    display: inline-flex;
    width: 38px;
    height: 38px;
    align-items: center;
    justify-content: center;
    border-radius: 9px;
    color: #ff3010;
    background: #fff2ee;
    font-size: 20px;
}

.label-left {
    left: 4px;
    top: 192px;
}

.label-top-right {
    right: 0;
    top: 92px;
}

.label-mid-right {
    right: -2px;
    top: 306px;
}

.qr-card {
    position: absolute;
    z-index: 3;
    top: 430px;
    width: 270px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 26px;
}

.qr-box {
    width: 240px;
    height: 240px;
    /* border: 2px solid #a7a7a7; */
    border-radius: 8px;
    box-shadow: 0px 2px 24px 0px rgba(214,214,214,0.26);
    /* background: rgba(216, 216, 216, 1); */
    display: flex;
    align-items: center;
    justify-content: center;
    color: #111;
    font-size: 40px;
    line-height: 1;
    padding: 15px;
}

.primary-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 110px;
    height: 44px;
    padding: 0 24px;
    border-radius: 7px;
    border: 0;
    background: #ff3010;
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 12px 24px rgba(255, 48, 16, 0.16);
}

.platform-panel {
    background: #fff;
}

.platform-management {
    padding: 58px 0 72px;
    background:
        linear-gradient(180deg, rgba(255, 247, 246, 0.2), rgba(255, 255, 255, 0.92)),
        url("https://sld2025.oss-cn-shanghai.aliyuncs.com/gw/wei-tu-2x-4.png") center top / cover no-repeat;
}

.platform-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(360px, 0.88fr);
    gap: 80px;
    /* align-items: center; */
}

.platform-screen {
    min-height: 390px;
    /* height: 390px; */
    display: flex;
    align-items: center;
}

.platform-screen img {
    width: 100%;
    /* max-height: 390px; */
    object-fit: contain;
    height: 100%;
}
/* --- 默认（中文）状态：显示中文图，隐藏英文图 --- */
.platform-screen .img-zh {
    display: block;
}
.platform-screen .img-en {
    display: none;
}

/* --- 英文状态：隐藏中文图，显示英文图 --- */
html[lang="en"] .platform-screen .img-zh {
    display: none;
}
html[lang="en"] .platform-screen .img-en {
    display: block;
}

.platform-copy .primary-action,
.fleet-head .primary-action {
    margin-top: 34px;
}

.platform-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    /* margin-top: 48px; */
}

.platform-card,
.fleet-card {
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 12px 34px rgba(151, 162, 179, 0.12);
}

.platform-card {
    min-height: 126px;
    padding: 28px 36px;
}

.platform-card h3,
.fleet-card h3 {
    margin: 0 0 12px;
    color: #59616c;
    font-size: 16px;
    line-height: 1.5;
}

.platform-card p {
    margin: 0;
    color: #a1a7b0;
    font-size: 13px;
    line-height: 1.8;
}

.fleet-management {
    padding: 50px 0 130px;
}

.fleet-head {
    /* height: 580px;
    background-image: url("https://sld2025.oss-cn-shanghai.aliyuncs.com/gw/bian-zu-29-2x-1.png");
    background-image: url("https://sld2025.oss-cn-shanghai.aliyuncs.com/gw/bian-zu-29-2x-3.png");
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background-position-y: 60px; */


    height: 480px;
    /* background-image: url(https://sld2025.oss-cn-shanghai.aliyuncs.com/gw/bian-zu-29-2x-1.png); */
    background-image: url("https://sld2025.oss-cn-shanghai.aliyuncs.com/gw/bian-zu-29-2x-3.png");
    background-size: 100% 131%;
    background-repeat: no-repeat;
    background-position-y: 20px;

}

html[lang="en"] .fleet-head  {
    height: 580px;
    background-image: url("https://sld2025.oss-cn-shanghai.aliyuncs.com/gw/bian-zu-29.png");
    background-size: 100% 100%;
    background-position-y: 80px;
  }

.fleet-head img {
    width: 100%;
    max-height: 470px;
    object-fit: contain;
}

.fleet-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
    margin-top: 70px;
}


.fleet-card {
    min-height: 176px;
    padding: 28px 34px;
    background: #f7faff;
    box-shadow: none;
}

.fleet-card ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.fleet-card li {
    position: relative;
    padding-left: 22px;
    color: #8b949f;
    font-size: 13px;
    line-height: 2;
}

.fleet-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #2db67c;
    font-weight: 700;
}

@media (max-width: 1100px) {
    .product-hero-visual {
        right: -210px;
        opacity: 0.72;
    }

    .mini-program-layout,
    .platform-intro,
    .fleet-head {
        grid-template-columns: 1fr;
        gap: 42px;
    }

    .mini-visual {
        position: relative;
        top: 0;
    }

    .fleet-head {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
    }

    .fleet-head img {
        align-self: center;
    }
}

@media (max-width: 900px) {
    .product-tabs {
        height: 72px;
        /* 修改为 flex 并允许横向滑动 */
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none; /* Firefox 隐藏滚动条 */
        justify-content: flex-start;
        padding: 0 10px;
        gap: 15px;
    }
    
    .product-tabs::-webkit-scrollbar {
        display: none; /* Chrome 隐藏滚动条 */
    }

    .product-tab {
        flex: 0 0 auto; /* 保证手机端标签不被压缩变形 */
        min-width: max-content;
        height: 72px;
        gap: 8px;
        padding: 0 15px;
        font-size: 13px;
        line-height: 1.25;
        white-space: nowrap;
    }
    
    .product-tab img {
        width: 28px;
        height: 28px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 18px;
    }

    .product-hero {
        min-height: 360px;
    }

    .product-hero-inner {
        min-height: 300px;
    }

    .product-hero-copy h1 {
        font-size: 40px;
        margin-bottom: 18px;
    }

    .product-hero-copy p {
        font-size: 15px;
        max-width: 520px;
    }

    .product-hero-visual {
        right: -360px;
        top: 82px;
        transform: scale(0.78);
        transform-origin: left top;
    }

    .product-tabs-wrap {
        top: 56px;
    }

    .mini-program-layout {
        padding-top: 52px;
        padding-bottom: 86px;
    }

    .product-copy h2,
    .platform-copy h2,
    .fleet-head h2 {
        font-size: 28px;
    }

    .feature-list {
        margin-top: 36px;
        gap: 16px;
    }

    .mini-feature-card,
    .feature-list.simple .mini-feature-card {
        min-height: 0;
        padding: 20px;
        gap: 16px;
    }

    .mini-feature-card img {
        width: 58px;
        height: 58px;
    }

    .mini-visual {
        min-height: 720px;
        transform: scale(0.9);
        transform-origin: top center;
    }

    .label-left {
        left: 0;
    }

    .label-top-right,
    .label-mid-right {
        right: 0;
    }

    .platform-management {
        padding-top: 44px;
    }

    .fleet-management {
        padding-top: 64px;
        padding-bottom: 84px;
    }
}

@media (max-width: 520px) {
    .product-hero-copy h1 {
        font-size: 34px;
    }

    .product-hero-copy p {
        font-size: 14px;
        line-height: 1.75;
    }

    .product-tab {
        height: 66px;
        font-size: 12px;
        gap: 5px;
    }

    .product-tab img {
        width: 24px;
        height: 24px;
    }

    .mini-feature-card {
        align-items: flex-start;
    }

    .phone-shell {
        width: 286px;
        height: 590px;
    }

    .mini-visual {
        min-height: 640px;
        transform: none;
    }

    .floating-label {
        height: 46px;
        padding: 0 12px;
        gap: 9px;
        font-size: 13px;
    }

    .label-icon {
        width: 30px;
        height: 30px;
        font-size: 16px;
    }

    .label-left {
        left: -6px;
        top: 158px;
    }

    .label-top-right {
        right: -6px;
        top: 82px;
    }

    .label-mid-right {
        right: -6px;
        top: 260px;
    }

    .qr-card {
        top: 382px;
        width: 214px;
        gap: 18px;
    }

    .qr-box {
        width: 214px;
        height: 214px;
        font-size: 32px;
    }

    .platform-card,
    .fleet-card {
        padding: 22px;
    }
}

/* 经济效益提升 */
.benefits-section {
  padding: 60px 0;
  background-color: #f8fafc;
  text-align: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.benefit-item {
  background-color: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
  border: 1px solid #f1f5f9;
  text-align: left;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.b-bar { height: 8px; width: 100%; top: 0;}
.b-bar-1 { background: linear-gradient(90deg, #f97316, #ef4444); }
.b-bar-2 { background: linear-gradient(90deg, #3b82f6, #06b6d4); }
.b-bar-3 { background: linear-gradient(90deg, #10b981, #14b8a6); }

.b-content {
  padding: 40px;
}

.b-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: white;
}
.b-icon svg { width: 32px; height: 32px; }
.b-icon.c1 { background: linear-gradient(135deg, #f97316, #ef4444); }
.b-icon.c2 { background: linear-gradient(135deg, #3b82f6, #06b6d4); }
.b-icon.c3 { background: linear-gradient(135deg, #10b981, #14b8a6); }

.b-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #0f172a;
}

.b-desc {
  color: #475569;
  font-size: 0.95rem;
  line-height: 1.7;
}
/* =========================================
   工厂能耗管理 - 专属模块样式
========================================= */

.factory-section {
    padding: 60px 0;
    background-color: #fff;
}

.factory-section.gray-bg {
    background-color: #fcfdfd; /* 极浅的灰底，衬托卡片 */
}

/* 统一的居中标题和红线样式 */
.factory-section-header {
    text-align: center;
    margin-bottom: 60px;
}

.factory-section-header h2 {
    font-size: 32px;
    font-weight: 800;
    color: #111827;
    margin: 0 0 15px 0;
    letter-spacing: 1px;
}

.factory-section-header.light-text h2 {
    color: #ffffff;
}

.header-line {
    width: 40px;
    height: 4px;
    background-color: #ff3010;
    margin: 0 auto;
    border-radius: 2px;
}

/* 1. 方案指导原则 (三列卡片) */
.principles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.principle-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s ease;
    border: 1px solid #f3f4f6;
}

.principle-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.p-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.p-icon img {
    width: 64px;
    height: 64px;
    /* filter: brightness(0) invert(1); 如果切图不是纯白，强制反相为白色 */
}

.green-icon { background: linear-gradient(135deg, #4ade80, #22c55e); }
.blue-icon { background: linear-gradient(135deg, #60a5fa, #3b82f6); }
.orange-icon { background: linear-gradient(135deg, #fb923c, #f97316); }

.principle-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 24px;
}

.p-list {
    padding: 0;
    margin: 0;
    list-style: none;
}

.p-list li {
    position: relative;
    padding-left: 20px;
    font-size: 14px;
    color: #4b5563;
    line-height: 2.2;
}

.p-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 12px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.green-list li::before { background-color: #22c55e; }
.blue-list li::before { background-color: #3b82f6; }
.orange-list li::before { background-color: #f97316; }


/* 2. 方案规划框架 (左右布局) */
.framework-layout {
    display: flex;
    align-items: center;
    gap: 60px;
}

.framework-left {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.fw-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    border: 1px solid #f3f4f6;
}

.fw-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    border-radius: 8px;
    background: #fff2ee;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fw-icon img {
    width: 48px;
    height: 48px;
}

.fw-text h4 {
    font-size: 16px;
    font-weight: 700;
    color: #111827;
    margin: 0 0 8px 0;
}

.fw-text p {
    font-size: 12px;
    color: #6b7280;
    line-height: 1.6;
    margin: 0;
}

.framework-right {
    flex: 1;
}

.fw-mockup {
    width: 85%;
    border-radius: 16px;
    /* box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1); */
}


/* 3. 方案核心价值 (深色横向时间轴) */
.dark-value-section {
    background: #111424; /* 深蓝色背景 */
}

.value-timeline {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    /* padding-top: 40px; */
    margin-top: 20px;
}

.timeline-line {
    position: absolute;
    top: 70px; /* 贯穿红色图标中心 */
    left: 5%;
    right: 5%;
    height: 1px;
    background: rgba(255, 48, 16, 0.3);
    z-index: 1;
}

.timeline-item {
    position: relative;
    z-index: 2;
    flex: 1;
    text-align: center;
    padding: 0 15px;
}

.t-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 24px;
    background: #ff3010;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
    box-shadow: 0px 0px 20px 2px #D92E2E;
}

.timeline-item h4 {
    font-size: 16px;
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 12px 0;
}

.timeline-item p {
    font-size: 12px;
    color: #9ca3af;
    line-height: 1.6;
    margin: 0;
}

/* === 移动端适配 === */
@media (max-width: 900px) {
    .principles-grid, 
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .framework-layout {
        flex-direction: column;
    }
    
    .value-timeline {
        flex-direction: column;
        align-items: center;
        gap: 40px;
        padding-top: 0;
    }
    
    .timeline-line {
        display: none; /* 移动端隐藏横向连接线 */
    }
}
/* PC 端展示区块 */
.interface-section {
    padding: 60px 0;
    background-color: white;
    text-align: center;
    border-bottom: 1px solid #f1f5f9;
  }
  
  .mockup-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 32px;
  }
  
  .mockup-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: #f1f5f9;
    border: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0f172a;
  }
  .mockup-icon svg { width: 1.25rem; height: 1.25rem; }
  
  .pc-wrapper {
    max-width: 1000px;
    margin: 0 auto;
    text-align: left;
  }
  
  .pc-screen {
    background-color: #0d1117;
    border: 12px solid #1e293b;
    border-radius: 24px 24px 0 0;
    aspect-ratio: 16/10;
    overflow: hidden;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
  }
  
  .pc-base {
    height: 24px;
    background-color: #cbd5e1;
    border-radius: 0 0 16px 16px;
    display: flex;
    justify-content: center;
    border-bottom: 1px solid #94a3b8;
    position: relative;
    box-shadow: 0 10px 30px -10px rgba(0,0,0,0.3);
  }
  
  .pc-base-notch {
    width: 120px;
    height: 8px;
    background-color: #94a3b8;
    border-radius: 0 0 6px 6px;
  }
  
  /* PC App 内部界面绘制 */
  .pc-app {
    padding: 32px;
    height: 100%;
    display: flex;
    flex-direction: column;
  }
  
  .pc-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 1px solid #1e293b;
    padding-bottom: 20px;
    margin-bottom: 24px;
  }
  
  .pc-header-title {
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
  }
  
  .pc-header-time {
    background-color: #1e293b;
    border: 1px solid #334155;
    color: #94a3b8;
    padding: 6px 16px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-family: monospace;
  }
  
  .furnace-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
    flex: 1;
  }
  
  .furnace-card {
    background-color: #161b22;
    border: 1px solid #1e293b;
    border-radius: 12px;
    padding: 20px;
    display: flex;
    flex-direction: column;
  }
  
  .furnace-card.active {
    border-color: rgba(34, 197, 94, 0.4);
  }
  
  .f-card-header {
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
  }
  
  .f-temp {
    font-size: 2.5rem;
    font-weight: 800;
    color: #ef4444;
    margin: 16px 0;
    letter-spacing: -0.05em;
  }
  
  .f-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
  }
  
  .f-stat-box {
    background-color: #0d1117;
    border: 1px solid #1e293b;
    padding: 10px;
    border-radius: 8px;
  }
  
  .f-stat-title {
    color: #64748b;
    font-size: 0.75rem;
    margin-bottom: 6px;
  }
  
  .f-stat-value {
    color: white;
    font-weight: 700;
    font-family: monospace;
    font-size: 0.875rem;
  }
  
  .f-badge {
    display: inline-flex;
    align-items: center;
    background-color: rgba(34, 197, 94, 0.15);
    color: #4ade80;
    padding: 6px 12px;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 500;
    align-self: flex-start;
    margin-top: auto;
  }
  
  .pc-summary-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    height: 100px;
  }
  
  .summary-card {
    background-color: #161b22;
    border: 1px solid #1e293b;
    border-radius: 12px;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  
  .summary-val {
    font-size: 2.25rem;
    font-weight: 800;
    color: white;
    margin-top: 4px;
  }
  .summary-val.green { color: #4ade80; }
  .summary-val.red { color: #f87171; }
  
  .text-green { color: #4ade80; }
  .text-blue { color: #60a5fa; }
  .text-red { color: #ef4444; }
  /* 移动端展示区块 */
.mobile-grid {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
    margin-top: 40px;
  }
  
  .mobile-mockup {
    width: 320px;
    height: 650px;
    background-color: #1e2030;
    border: 12px solid #0f172a;
    border-radius: 48px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    text-align: left;
  }
  
  .mobile-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 140px;
    height: 28px;
    background-color: #0f172a;
    border-radius: 0 0 16px 16px;
    z-index: 10;
  }
  
  .mobile-content {
    padding: 24px;
    padding-top: 44px;
    flex: 1;
    overflow-y: auto;
  }
  .mobile-content::-webkit-scrollbar { display: none; }
  .mobile-content { -ms-overflow-style: none; scrollbar-width: none; }
  
  .m-title {
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 8px;
  }
  
  .m-subtitle {
    font-size: 0.75rem;
    color: #64748b;
    margin-bottom: 24px;
  }
  
  .m-stats-row {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
  }
  
  .m-stat {
    flex: 1;
    background-color: #272a3d;
    padding: 16px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.05);
  }
  
  .m-stat-val {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 4px;
  }
  
  .m-alert {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 16px;
    border-radius: 12px;
    color: #ef4444;
    font-size: 0.8125rem;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
  }
  
  .m-furnace {
    background-color: #272a3d;
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: 16px;
    padding: 20px;
  }
  
  .m-f-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: white;
    font-weight: 700;
    margin-bottom: 20px;
  }
  
  .m-f-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  
  .m-f-box {
    background-color: #1e2030;
    padding: 12px;
    border-radius: 8px;
  }
  
  .m-f-box-val {
    font-size: 1.5rem;
    font-weight: 800;
    color: #ef4444;
    margin-bottom: 4px;
  }
  .m-f-box-val.blue { color: #60a5fa; }
  
  .m-bottom-bar {
    background-color: #1e2030;
    border-top: 1px solid #334155;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    color: #64748b;
    text-align: center;
    font-size: 0.65rem;
    z-index: 20;
  }
  .m-bottom-bar svg { width: 1.25rem; height: 1.25rem; margin: 0 auto 4px auto; display: block; }
  
  /* 移动端表单样式 */
  .form-area {
    border-color: #334155;
  }
  .form-title {
    display: flex;
    align-items: center;
    color: white;
    font-weight: 700;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid #334155;
  }
  .form-required {
    background-color: rgba(239,68,68,0.2);
    color: #ef4444;
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid rgba(239,68,68,0.3);
    margin-left: auto;
  }
  .m-form-group {
    margin-bottom: 20px;
  }
  .m-label {
    font-size: 0.75rem;
    color: #94a3b8;
    margin-bottom: 8px;
  }
  .m-input {
    background-color: #1e2030;
    border: 1px solid #334155;
    padding: 14px;
    border-radius: 8px;
    color: #f1f5f9;
    font-size: 0.875rem;
  }
  .m-photo-box {
    background-color: #1e2030;
    border: 1px dashed #475569;
    padding: 32px;
    border-radius: 8px;
    text-align: center;
    color: #64748b;
    font-size: 0.875rem;
    cursor: pointer;
  }

  .badge{
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: #fee2e2;
    color: #b91c1c;
    padding: 6px 16px;
    border-radius: 99px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 32px;
  }

  .section-title{
    font-size: 34px;
  }

  /* =========================================
   方案规划框架 - 中英文图片切换
========================================= */

/* 默认（中文）状态：显示中文图，隐藏英文图 */
.fw-img-zh {
    display: block;
}
.fw-img-en {
    display: none;
}

/* 英文状态：隐藏中文图，显示英文图 */
html[lang="en"] .fw-img-zh {
    display: none;
}
html[lang="en"] .fw-img-en {
    display: block;
}