@CHARSET "UTF-8";
/* ============================================================
   V-Ran 蔚然远行 - 前台首页品牌样式
   配色取自公司 logo：帆船青 #1E9FD8 / 文字蓝 #1B5C94
   依赖: Bootstrap 3, Font Awesome 4.4, chem-shop.css
   ============================================================ */

/* ---------- Hero 品牌横幅 ---------- */
.vr-hero {
    position: relative;
    background-color: #10365c;
    background-image:
        radial-gradient(760px 400px at 84% 14%, rgba(111, 208, 255, .28), rgba(111, 208, 255, 0) 62%),
        radial-gradient(620px 380px at 4% 92%, rgba(30, 159, 216, .32), rgba(30, 159, 216, 0) 60%),
        linear-gradient(135deg, #10365c 0%, #1b5c94 48%, #1e9fd8 100%);
    color: #fff;
    padding: 70px 0 104px;
    overflow: hidden;
    isolation: isolate;
}

/* ---- 背景装饰层 ---- */
.vr-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
}

/* 网格纹理（四周淡出，避免生硬边界） */
.vr-hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, .06) 1px, rgba(255, 255, 255, 0) 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, rgba(255, 255, 255, 0) 1px);
    background-size: 48px 48px;
    -webkit-mask-image: radial-gradient(120% 90% at 30% 40%, #000 20%, rgba(0, 0, 0, .25) 70%, transparent 100%);
    mask-image: radial-gradient(120% 90% at 30% 40%, #000 20%, rgba(0, 0, 0, .25) 70%, transparent 100%);
}

/* 分子结构装饰：缓慢自转，营造化工行业质感 */
.vr-hero-mol {
    position: absolute;
    left: -70px;
    top: 50%;
    width: 560px;
    height: 560px;
    margin-top: -280px;
    opacity: .15;
}

.vr-hero-mol-spin {
    transform-origin: 200px 200px;
    animation: vr-mol-spin 90s linear infinite;
}

@keyframes vr-mol-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 背景装饰：品牌帆船水印 */
.vr-hero .vr-hero-deco {
    position: absolute;
    right: 2%;
    bottom: -6%;
    font-size: 260px;
    line-height: 1;
    color: rgba(255, 255, 255, .06);
    pointer-events: none;
}

/* 底部波浪过渡 */
.vr-hero-wave {
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    display: block;
    width: 100%;
    height: 72px;
    z-index: 1;
}

/* ---- 内容层 ---- */
.vr-hero .container {
    position: relative;
    z-index: 2;
}

.vr-hero-inner {
    position: relative;
}

.vr-hero-badge {
    display: inline-block;
    padding: 5px 16px;
    border: 1px solid rgba(255, 255, 255, .42);
    border-radius: 20px;
    font-size: 12.5px;
    letter-spacing: 2px;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, .94);
    background: rgba(255, 255, 255, .08);
}

.vr-hero-badge .fa {
    margin-right: 6px;
    color: #8fe0ff;
}

.vr-hero h1 {
    margin: 0 0 16px;
    font-size: 40px;
    font-weight: 700;
    line-height: 1.34;
    letter-spacing: .5px;
    color: #fff;
    text-shadow: 0 2px 18px rgba(6, 32, 58, .28);
}

.vr-hero h1 em {
    font-style: normal;
    color: #8fe0ff;
}

.vr-hero p.vr-hero-sub {
    margin: 0 0 22px;
    font-size: 15.5px;
    line-height: 1.85;
    color: rgba(255, 255, 255, .86);
    max-width: 620px;
}

/* 卖点标签 */
.vr-hero-tags {
    margin: 0 0 26px;
    padding: 0;
    list-style: none;
}

.vr-hero-tags li {
    display: inline-block;
    margin: 0 10px 8px 0;
    padding: 6px 16px;
    background: rgba(255, 255, 255, .10);
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 20px;
    font-size: 13px;
    color: #fff;
}

.vr-hero-tags li .fa {
    margin-right: 6px;
    color: #8fe0ff;
}

/* ---- 右侧能力面板（玻璃质感） ---- */
.vr-hero-panel {
    position: relative;
    margin-top: 6px;
    padding: 26px 26px 24px;
    background: rgba(255, 255, 255, .11);
    border: 1px solid rgba(255, 255, 255, .26);
    border-radius: 12px;
    box-shadow: 0 20px 48px rgba(6, 32, 58, .26);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.vr-hero-panel-head {
    display: table;
    width: 100%;
    margin-bottom: 20px;
}

.vr-hero-panel-icon {
    display: table-cell;
    width: 48px;
    vertical-align: middle;
}

.vr-hero-panel-icon .fa {
    display: inline-block;
    width: 44px;
    height: 44px;
    line-height: 44px;
    text-align: center;
    font-size: 20px;
    color: #0f3f6b;
    background: #fff;
    border-radius: 10px;
}

.vr-hero-panel-head h4 {
    margin: 0;
    font-size: 17px;
    font-weight: 600;
    color: #fff;
}

.vr-hero-panel-head p {
    margin: 3px 0 0;
    font-size: 12.5px;
    color: rgba(255, 255, 255, .7);
}

/* 量级阶梯 mg / g / kg / t */
.vr-hero-scale {
    display: block;
    margin: 0 0 18px;
    padding: 0;
    list-style: none;
    font-size: 0;
}

.vr-hero-scale li {
    display: inline-block;
    width: 23.5%;
    margin-left: 2%;
    padding: 11px 2px 9px;
    text-align: center;
    vertical-align: top;
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 8px;
}

.vr-hero-scale li:first-child {
    margin-left: 0;
}

.vr-hero-scale b {
    display: block;
    font-size: 19px;
    font-weight: 700;
    line-height: 1.2;
    color: #fff;
}

.vr-hero-scale span {
    display: block;
    margin-top: 3px;
    font-size: 11px;
    color: rgba(255, 255, 255, .72);
}

.vr-hero-panel-desc {
    margin: 0 0 18px;
    font-size: 13px;
    line-height: 1.9;
    color: rgba(255, 255, 255, .82);
}

.vr-hero-panel-link {
    display: inline-block;
    font-size: 13.5px;
    font-weight: 600;
    color: #fff;
}

.vr-hero-panel-link .fa {
    margin-left: 4px;
    transition: transform .25s ease;
}

.vr-hero-panel-link:hover {
    color: #8fe0ff;
}

.vr-hero-panel-link:hover .fa {
    transform: translateX(4px);
}

.vr-hero-btns .btn {
    margin-right: 12px;
    padding: 11px 28px;
    font-size: 15px;
    border-radius: 4px;
}

.vr-btn-cta {
    background: #fff;
    color: #1b5c94;
    border: 1px solid #fff;
    font-weight: 600;
    box-shadow: 0 8px 22px rgba(6, 32, 58, .22);
}

.vr-btn-cta:hover {
    background: #eaf6fd;
    color: #14486e;
}

.vr-btn-ghost {
    background: rgba(255, 255, 255, .06);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .68);
}

.vr-btn-ghost:hover {
    background: rgba(255, 255, 255, .16);
    color: #fff;
}

/* ---------- 通用区块 ---------- */
.vr-section {
    padding: 52px 0 30px;
}

.vr-section-head {
    text-align: center;
    margin-bottom: 34px;
}

.vr-section-head h2 {
    margin: 0 0 8px;
    font-size: 26px;
    font-weight: 700;
    color: #22303e;
}

.vr-section-head h2 .vr-bar {
    display: inline-block;
    width: 34px;
    height: 3px;
    background: #1e9fd8;
    vertical-align: middle;
    margin: 0 14px;
    border-radius: 2px;
}

.vr-section-head p {
    margin: 0;
    color: #8a9099;
    font-size: 14px;
}

/* ---------- 三大核心业务 ---------- */
.vr-biz-card {
    position: relative;
    background: #fff;
    border: 1px solid #e8ebee;
    border-radius: 10px;
    padding: 28px 26px 26px;
    margin-bottom: 24px;
    overflow: hidden;
    transition: box-shadow .28s ease, transform .28s ease, border-color .28s ease;
}

/* 顶部渐变高亮条：hover 时由左向右展开 */
.vr-biz-card:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #1b5c94, #1e9fd8, #6fd0ff);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .45s ease;
}

.vr-biz-card:hover:before {
    transform: scaleX(1);
}

/* 右下角水印图标 */
.vr-biz-watermark {
    position: absolute;
    right: -16px;
    bottom: -20px;
    font-size: 118px;
    line-height: 1;
    color: #f1f7fb;
    pointer-events: none;
    transition: transform .5s ease, color .4s ease;
}

.vr-biz-card:hover .vr-biz-watermark {
    transform: rotate(-10deg) scale(1.12);
    color: #e4f1fa;
}

/* 序号 + 图标 */
.vr-biz-head {
    display: table;
    width: 100%;
    margin-bottom: 18px;
}

.vr-biz-num {
    display: table-cell;
    vertical-align: middle;
    font-size: 30px;
    font-weight: 800;
    line-height: 1;
    letter-spacing: 1px;
    color: #dde9f3;
    transition: color .3s ease;
}

.vr-biz-card:hover .vr-biz-num {
    color: #a9d6f0;
}

.vr-biz-card .vr-biz-icon {
    display: table-cell;
    width: 56px;
    vertical-align: middle;
    text-align: right;
}

.vr-biz-card .vr-biz-icon .fa {
    display: inline-block;
    width: 56px;
    height: 56px;
    line-height: 56px;
    text-align: center;
    border-radius: 14px;
    background: linear-gradient(135deg, #eaf6fd, #d5ebfa);
    color: #1e9fd8;
    font-size: 24px;
}

.vr-biz-card h3 {
    margin: 0 0 10px;
    font-size: 18px;
    font-weight: 600;
    color: #22303e;
}

.vr-biz-desc {
    margin: 0 0 16px;
    font-size: 13px;
    line-height: 1.9;
    color: #6b7280;
    min-height: 74px;
}

/* 能力要点 */
.vr-biz-list {
    list-style: none;
    margin: 0 0 18px;
    padding: 14px 0 0;
    border-top: 1px dashed #e6eaee;
    position: relative;
}

.vr-biz-list li {
    position: relative;
    padding-left: 20px;
    font-size: 13px;
    line-height: 2;
    color: #5b6673;
}

.vr-biz-list li .fa {
    position: absolute;
    left: 0;
    top: 8px;
    font-size: 11px;
    color: #1e9fd8;
}

.vr-biz-link {
    position: relative;
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: #1e9fd8;
}

.vr-biz-link .fa {
    margin-left: 4px;
    transition: transform .25s ease;
}

.vr-biz-link:hover {
    color: #178bc0;
}

.vr-biz-card:hover .vr-biz-link .fa {
    transform: translateX(5px);
}

/* ---------- 能力优势条 ---------- */
.vr-adv {
    background: #f6f8fa;
    border-top: 1px solid #eef1f4;
    border-bottom: 1px solid #eef1f4;
    padding: 34px 0;
    margin: 30px 0 10px;
}

.vr-adv-item {
    text-align: center;
    padding: 10px 8px;
}

.vr-adv-item .fa {
    font-size: 30px;
    color: #1e9fd8;
    margin-bottom: 10px;
}

.vr-adv-item h4 {
    margin: 0 0 6px;
    font-size: 15px;
    font-weight: 600;
    color: #22303e;
}

.vr-adv-item p {
    margin: 0;
    font-size: 12px;
    color: #8a9099;
    line-height: 1.7;
}

/* ---------- 产品中心（首页全宽网格） ---------- */
.vr-home-products .chem-card-thumb {
    height: 130px;
}

.vr-home-products .chem-card-thumb img {
    max-height: 110px;
}

.vr-more-btn {
    text-align: center;
    margin-top: 18px;
}

.vr-more-btn .btn {
    padding: 9px 34px;
    border: 1px solid #1e9fd8;
    color: #1e9fd8;
    background: #fff;
    border-radius: 3px;
}

.vr-more-btn .btn:hover {
    background: #1e9fd8;
    color: #fff;
}

/* ---------- 关于我们 + 定制流程 ---------- */
.vr-about {
    background: #fff;
    border: 1px solid #e6e8eb;
    border-radius: 4px;
    padding: 30px 28px;
}

.vr-about p.vr-about-text {
    font-size: 14px;
    line-height: 2;
    color: #5b6673;
    margin: 0 0 18px;
}

.vr-flow {
    list-style: none;
    margin: 0;
    padding: 0;
    display: table;
    width: 100%;
    table-layout: fixed;
}

.vr-flow li {
    display: table-cell;
    text-align: center;
    position: relative;
    padding: 0 6px;
}

/* 步骤间连接线 */
.vr-flow li:not(:last-child):after {
    content: "";
    position: absolute;
    top: 22px;
    left: calc(50% + 30px);
    width: calc(100% - 60px);
    height: 2px;
    background: #d8ecf8;
}

.vr-flow .vr-step-num {
    width: 44px;
    height: 44px;
    line-height: 44px;
    margin: 0 auto 10px;
    border-radius: 50%;
    background: #eaf6fd;
    color: #1e9fd8;
    font-size: 18px;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.vr-flow h5 {
    margin: 0 0 4px;
    font-size: 14px;
    font-weight: 600;
    color: #22303e;
}

.vr-flow p {
    margin: 0;
    font-size: 12px;
    color: #8a9099;
    line-height: 1.6;
}

/* ---------- 响应式 ---------- */
/* 平板：核心业务三卡并排时收紧内边距 */
@media (min-width: 768px) and (max-width: 991px) {
    .vr-biz-card {
        padding: 24px 18px 20px;
    }

    .vr-biz-desc {
        min-height: 96px;
    }

    .vr-biz-card .vr-biz-icon .fa {
        width: 46px;
        height: 46px;
        line-height: 46px;
        font-size: 20px;
    }

    .vr-biz-num {
        font-size: 24px;
    }
}

@media (max-width: 767px) {
    .vr-hero {
        padding: 44px 0 74px;
    }

    .vr-hero h1 {
        font-size: 25px;
        line-height: 1.4;
    }

    .vr-hero p.vr-hero-sub {
        font-size: 14px;
    }

    .vr-hero .vr-hero-deco {
        font-size: 150px;
        opacity: .6;
    }

    .vr-hero-mol {
        left: -110px;
        width: 380px;
        height: 380px;
        margin-top: -190px;
        opacity: .12;
    }

    .vr-hero-wave {
        height: 44px;
    }

    .vr-hero-tags li {
        margin-right: 6px;
        padding: 5px 12px;
        font-size: 12px;
    }

    .vr-hero-btns .btn {
        display: block;
        margin: 0 0 12px;
        width: 100%;
    }

    .vr-biz-card {
        padding: 24px 20px 22px;
    }

    .vr-biz-desc {
        min-height: 0;
    }

    .vr-biz-watermark {
        font-size: 92px;
        right: -12px;
        bottom: -16px;
    }

    .vr-section {
        padding: 34px 0 20px;
    }

    .vr-section-head h2 {
        font-size: 21px;
    }

    .vr-flow li:after {
        display: none;
    }

    .vr-flow li {
        margin-bottom: 18px;
    }
}