/* =========================================================
       DESIGN SYSTEM TOKENS - 经典焦糖奶油糖果工业风 (Caramel & Cream)
       ========================================================= */
    :root {
      --ink: #2b211c;           /* 主文字深焙浓缩棕 */
      --text: #5c4f47;          /* 正文温暖中灰棕 */
      --muted: #8a7b71;         /* 辅助/说明浅灰棕 */
      --line: #eadfd6;          /* 温暖柔和边框线条 */
      --bg: #fbf7f2;            /* 页面基底微乳白 */
      --card: #ffffff;          /* 纯白卡片背景 */
      --caramel: #c26a3a;       /* 品牌核心焦糖橙红 */
      --caramel-dark: #a4532c;  /* 焦糖悬停深色 */
      --caramel-light: #fff7f0; /* 极淡焦糖衬底色 */
      --caramel-border: #efcbb3;/* 焦糖高亮线框 */
      --cream: #fff9f3;         /* 主背景温暖奶霜色 */
      --cream-soft: #fff6ee;    /* 模块交替浅柔背景 */
      --dark-footer: #3d2f28;   /* 顶栏与页脚重色炭褐 */
      --dark-footer-line: #5a463c; /* 页脚细分隔线 */
      --dark-footer-text: #d4c0b0; /* 页脚文字香槟米色 */
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: Outfit, -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--ink);
      background: var(--cream);
      line-height: 1.6;
      font-size: 15px;
    }
    img { width: 100%; height: 100%; object-fit: cover; display: block; }
    a { color: inherit; text-decoration: none; }

    .wrap { width: min(1140px, calc(100% - 40px)); margin: 0 auto; }

    /* 按钮设计规范 */
    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      background: var(--caramel); color: #fff; border: 0; border-radius: 999px;
      padding: 12px 24px; font-weight: 600; font-size: 14px; cursor: pointer;
      transition: all .2s ease;
    }
    .btn:hover { background: var(--caramel-dark); transform: translateY(-1px); }
    .btn-soft {
      background: #fff; color: var(--caramel); border: 1px solid var(--caramel-border);
    }
    .btn-soft:hover { background: var(--caramel-light); }
    .btn-sm { width: 100%; padding: 8px 12px; font-size: 13px; border-radius: 999px; }

    /* 顶栏 Topbar */
    .topbar {
      background: var(--dark-footer); color: #e8d5c4; font-size: 12px; padding: 8px 0;
    }
    .topbar .wrap { display: flex; justify-content: space-between; gap: 12px; align-items: center; }

    /* 导航栏 Header */
    header {
      position: sticky; top: 0; z-index: 40;
      background: rgba(255,249,243,.94); backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--line);
    }
    .nav {
      display: flex; align-items: center; justify-content: space-between; height: 72px;
    }
    .logo {
      display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 21px;
      letter-spacing: -0.01em; color: var(--ink);
    }
    .logo .mark {
      width: 36px; height: 36px; border-radius: 50%;
      background: linear-gradient(135deg, #e08a55, #c26a3a);
      color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 18px;
    }
    .menu { display: flex; gap: 22px; align-items: center; font-size: 14px; font-weight: 500; color: var(--text); }
    .menu a { transition: color .2s; }
    .menu a:hover, .menu a.active { color: var(--caramel); }
    .menu > a { padding: 26px 0; }
    .nav-item { position: relative; }
    .nav-item > a { display: inline-flex; align-items: center; gap: 4px; padding: 26px 0; }
    .nav-item .caret { font-size: 9px; opacity: .55; }
    .dropdown {
      display: none;
      position: absolute;
      top: calc(100% - 10px);
      left: 50%;
      transform: translateX(-50%);
      min-width: 188px;
      padding: 8px 0;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 12px;
      box-shadow: 0 12px 28px rgba(43,33,28,.12);
      z-index: 50;
    }
    .dropdown.cols-2 { min-width: 188px; display: none; }
    .nav-item:hover .dropdown,
    .nav-item:focus-within .dropdown { display: block; }
    .nav-item:hover .dropdown.cols-2,
    .nav-item:focus-within .dropdown.cols-2 { display: block; }
    .dropdown a {
      display: block;
      padding: 8px 16px;
      font-size: 13px;
      color: var(--text);
      white-space: nowrap;
    }
    .dropdown a:hover { background: var(--caramel-light); color: var(--caramel); }

    /* 通用排版 */
    section { padding: 56px 0; }
    .soft { background: var(--cream-soft); }
    .center { text-align: center; }
    .label {
      display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .1em;
      text-transform: uppercase; color: var(--caramel); margin-bottom: 8px;
    }
    h2 {
      font-size: clamp(24px, 3vw, 32px); letter-spacing: -.02em; margin-bottom: 10px;
      line-height: 1.25; color: var(--ink);
    }
    h2 em { font-style: normal; color: var(--caramel); }
    .sub { color: var(--muted); max-width: 580px; margin-bottom: 24px; font-size: 14.5px; }
    .center .sub { margin-left: auto; margin-right: auto; }

    /* 1. Hero 区域：可靠、可定制供应商标头 (对应原型 Vap2xqGgWV7DeZuD21dw-1~17) */
    .hero {
      position: relative;
      padding: 48px 0 40px;
      background:
        radial-gradient(circle at 90% 15%, #ffe8d6 0%, transparent 45%),
        radial-gradient(circle at 8% 85%, #fff1e6 0%, transparent 40%),
        var(--cream);
      border-bottom: 1px solid var(--line);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 36px;
      align-items: center;
    }
    .feature-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 20px;
      padding: 26px;
      box-shadow: 0 16px 36px rgba(194,106,58,.08);
    }
    .feature-card-header {
      font-size: 18px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 16px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--line);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .feature-card-header::before {
      content: "";
      width: 4px;
      height: 18px;
      background: var(--caramel);
      border-radius: 2px;
    }
    .feature-rows {
      display: flex;
      flex-direction: column;
      gap: 9px;
      margin-bottom: 20px;
    }
    .feature-row {
      display: grid;
      grid-template-columns: 7.2em 1fr;
      column-gap: 10px;
      align-items: start;
      font-size: 14px;
      color: var(--text);
      line-height: 1.45;
    }
    .feature-tag {
      font-weight: 700;
      color: var(--caramel);
      width: auto;
    }
    .hero-visual {
      border-radius: 20px;
      overflow: hidden;
      min-height: 290px;
      box-shadow: 0 16px 36px rgba(43,33,28,.08);
      background: #fff1e6;
    }

    /* 2. 主页面双栏布局：左侧交互目录树 + 右侧产品主网格与模块 */
    .catalog-section { padding: 48px 0 64px; }
    .catalog-layout {
      display: grid;
      grid-template-columns: 290px 1fr;
      gap: 36px;
      align-items: start;
    }

    /* 左侧边栏 Sticky 目录与快速报价表单 */
    .sidebar {
      display: flex;
      flex-direction: column;
      gap: 24px;
      position: sticky;
      top: 92px;
    }
    .widget-box {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 18px;
      padding: 22px;
      box-shadow: 0 6px 18px rgba(43,33,28,.02);
    }
    .widget-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 16px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--line);
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .widget-title::before {
      content: "";
      width: 4px;
      height: 16px;
      background: var(--caramel);
      border-radius: 2px;
    }

    /* 多级折叠产品目录树 (对应原型 Vap2xqGgWV7DeZuD21dw-76~152) */
    .catalog-tree {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .tree-node {
      border: 1px solid var(--line);
      border-radius: 12px;
      overflow: hidden;
      background: var(--cream);
    }
    .tree-title {
      padding: 10px 14px;
      font-weight: 700;
      font-size: 13.5px;
      color: var(--ink);
      background: #fff;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      border-bottom: 1px solid transparent;
      transition: all .2s;
    }
    .tree-title:hover {
      color: var(--caramel);
      background: var(--caramel-light);
    }
    .tree-node.open .tree-title {
      border-bottom-color: var(--line);
      color: var(--caramel);
    }
    .tree-arrow {
      font-size: 10px;
      transition: transform .2s;
      color: var(--caramel);
    }
    .tree-node.open .tree-arrow {
      transform: rotate(180deg);
    }
    .tree-sublist {
      list-style: none;
      padding: 8px 12px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .tree-sublist li a {
      display: block;
      padding: 6px 10px;
      border-radius: 8px;
      font-size: 13px;
      color: var(--text);
      transition: all .2s;
    }
    .tree-sublist li a:hover,
    .tree-sublist li a.active {
      background: #fff;
      color: var(--caramel);
      font-weight: 600;
      padding-left: 14px;
      border: 1px solid var(--caramel-border);
    }

    /* 侧边栏博客列表 (最新/相关博客 对应原型 Vap2xqGgWV7DeZuD21dw-153~168 & 188~213) */
    .sidebar-blog-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .sidebar-blog-list li a {
      display: block;
      padding: 8px 12px;
      border-radius: 10px;
      border: 1px solid var(--line);
      background: var(--cream);
      font-size: 13px;
      color: var(--text);
      transition: all .2s;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .sidebar-blog-list li a:hover {
      background: var(--caramel-light);
      border-color: var(--caramel-border);
      color: var(--caramel);
      padding-left: 16px;
    }

    /* 侧边栏立刻报价表单 (对应原型 Vap2xqGgWV7DeZuD21dw-262~268) */
    .sidebar-quote-form {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .sidebar-quote-form input,
    .sidebar-quote-form textarea {
      width: 100%;
      border: 1px solid var(--line);
      border-radius: 10px;
      padding: 10px 12px;
      font-size: 13px;
      background: var(--cream);
      font-family: inherit;
    }
    .sidebar-quote-form input:focus,
    .sidebar-quote-form textarea:focus {
      outline: 2px solid var(--caramel-border);
      border-color: var(--caramel);
      background: #fff;
    }
    .sidebar-quote-form textarea {
      min-height: 80px;
      resize: vertical;
    }
    .quote-action-row {
      display: flex;
      gap: 8px;
      align-items: center;
      margin-top: 4px;
    }
    .quote-file-input {
      font-size: 11px;
      flex: 1;
      color: var(--muted);
    }

    /* 右侧主工作流 */
    .main-catalog-content {
      display: flex;
      flex-direction: column;
      gap: 48px;
    }

    /* 3.1 核心产品目录网格 12款产品 (对应原型 Vap2xqGgWV7DeZuD21dw-21~63 4行3列) */
    .product-grid-3x4 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }
    .prod-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 16px;
      overflow: hidden;
      transition: all .25s ease;
      display: flex;
      flex-direction: column;
    }
    .prod-card:hover {
      border-color: var(--caramel-border);
      box-shadow: 0 12px 28px rgba(194,106,58,.08);
      transform: translateY(-2px);
    }
    .prod-card .pic {
      height: 160px;
      overflow: hidden;
      background: #fff1e6;
    }
    .prod-card .body {
      padding: 14px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      flex: 1;
    }
    .prod-card h4 {
      font-size: 14.5px;
      color: var(--ink);
      margin-bottom: 4px;
    }
    .prod-card p {
      font-size: 12px;
      color: var(--muted);
      margin-bottom: 12px;
    }

    /* 分页条 1..11 (对应原型 Vap2xqGgWV7DeZuD21dw-64~70) */
    .pagination-bar {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 6px;
      margin-top: 24px;
      padding-top: 20px;
      border-top: 1px solid var(--line);
    }
    .page-btn {
      width: 34px;
      height: 34px;
      border-radius: 8px;
      border: 1px solid var(--line);
      background: #fff;
      display: grid;
      place-items: center;
      font-size: 13px;
      font-weight: 600;
      color: var(--text);
      cursor: pointer;
      transition: all .2s;
    }
    .page-btn:hover {
      border-color: var(--caramel-border);
      color: var(--caramel);
      background: var(--caramel-light);
    }
    .page-btn.active {
      background: var(--caramel);
      color: #fff;
      border-color: var(--caramel);
    }
    .page-ellipsis {
      padding: 0 4px;
      color: var(--muted);
      font-weight: 700;
    }

    /* 3.2 生产过程 6格网格 (对应原型 Vap2xqGgWV7DeZuD21dw-169~186) */
    .embedded-block {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 20px;
      padding: 24px;
      box-shadow: 0 8px 24px rgba(43,33,28,.02);
    }
    .embedded-block-header {
      margin-bottom: 20px;
    }
    .process-grid-3x2 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .shot {
      border-radius: 14px;
      overflow: hidden;
      border: 1px solid var(--line);
      background: var(--cream);
      transition: .2s ease;
    }
    .shot:hover {
      border-color: var(--caramel-border);
      transform: translateY(-2px);
    }
    .shot .pic {
      height: 130px;
      overflow: hidden;
      background: #fff1e6;
    }
    .shot .cap {
      padding: 12px;
    }
    .shot h4 {
      font-size: 13.5px;
      color: var(--ink);
      margin-bottom: 2px;
    }
    .shot small {
      font-size: 12px;
      color: var(--muted);
      line-height: 1.35;
      display: block;
    }

    /* 3.3 合作过的品牌网格 8商标+轮播圆点 (对应原型 Vap2xqGgWV7DeZuD21dw-218~260) */
    .partners-grid-4x2 {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }
    .partner-card {
      background: var(--cream);
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .brand-mark {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: var(--caramel);
      color: #fff;
      font-weight: 700;
      font-size: 12px;
      display: grid;
      place-items: center;
      flex-shrink: 0;
    }
    .partner-card h4 {
      font-size: 13px;
      color: var(--ink);
    }
    .partner-card p {
      font-size: 11px;
      color: var(--muted);
    }

    /* 3.4 资质证书横条 4个证书印章+指示点 (对应原型 Vap2xqGgWV7DeZuD21dw-230~254) */
    .certs-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }
    .cert-box {
      background: var(--cream);
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 14px 12px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .seal {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      border: 1.5px solid var(--caramel-border);
      color: var(--caramel);
      display: grid;
      place-items: center;
      text-align: center;
      font-size: 9.5px;
      font-weight: 700;
      line-height: 1.1;
      background: var(--caramel-light);
      flex-shrink: 0;
    }
    .cert-box h4 { font-size: 13px; color: var(--ink); margin-bottom: 2px; }
    .cert-box p { font-size: 11px; color: var(--muted); }

    /* 通用圆点指示条 */
    .dots-bar {
      display: flex;
      justify-content: center;
      gap: 6px;
      margin-top: 16px;
    }
    .dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #e2d3c7;
      cursor: pointer;
      transition: all .2s;
    }
    .dot.active {
      width: 20px;
      border-radius: 4px;
      background: var(--caramel);
    }

    /* 3.5 常见问题 FAQ 列表 (对应原型 Vap2xqGgWV7DeZuD21dw-240~247) */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .faq-item {
      border: 1px solid var(--line);
      border-radius: 12px;
      background: var(--cream);
      padding: 14px 18px;
      cursor: pointer;
      transition: all .2s;
    }
    .faq-item:hover {
      border-color: var(--caramel-border);
      background: #fff;
    }
    .faq-q {
      font-size: 14px;
      font-weight: 600;
      color: var(--ink);
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .faq-a {
      font-size: 13px;
      color: var(--muted);
      margin-top: 8px;
      line-height: 1.5;
    }

    /* 4. 最新产品横向滚动卡片 (对应原型 Vap2xqGgWV7DeZuD21dw-269~313 5款卡片+圆点) */
    .new-arrivals-section {
      background: var(--cream-soft);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
      padding: 56px 0;
    }
    .grid5 {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 14px;
    }

    /* 5. 底部联系我们大表单 (对应原型 Vap2xqGgWV7DeZuD21dw-315, 77~85) */
    .contact-section { padding: 64px 0; }
    form.inquiry-form {
      display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
      background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 28px;
      box-shadow: 0 16px 36px rgba(43,33,28,.04); max-width: 860px; margin: 24px auto 0;
    }
    form .full { grid-column: 1 / -1; }
    .form-group label {
      display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--ink);
    }
    input, textarea {
      width: 100%; border: 1px solid var(--line); border-radius: 12px;
      padding: 12px 16px; font: inherit; background: var(--cream); color: var(--ink);
      transition: border-color .2s, outline .2s;
    }
    input:focus, textarea:focus {
      outline: 2px solid var(--caramel-border); border-color: var(--caramel); background: #fff;
    }
    textarea { min-height: 110px; resize: vertical; }
    .file-upload-box {
      border: 1px dashed var(--caramel-border); border-radius: 12px; padding: 10px 14px;
      background: var(--caramel-light); font-size: 13px; color: var(--muted);
      display: flex; align-items: center; justify-content: space-between;
    }
    .file-upload-box input[type="file"] { border: 0; background: transparent; padding: 0; width: auto; font-size: 12px; }

    /* 6. 页脚 Footer (对应原型 Vap2xqGgWV7DeZuD21dw-314, 78~108) */
    footer { background: var(--dark-footer); color: var(--dark-footer-text); padding: 56px 0 24px; }
    .foot { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 32px; }
    footer h5 { color: #fff; margin-bottom: 14px; font-size: 15px; font-weight: 600; }
    footer a, footer p { display: block; margin-bottom: 9px; font-size: 13px; color: var(--dark-footer-text); transition: color .2s; }
    footer a:hover { color: #fff; }
    footer ul { list-style: none; }
    .copy {
      border-top: 1px solid var(--dark-footer-line); margin-top: 36px; padding-top: 18px;
      font-size: 12px; display: flex; justify-content: space-between; color: #a48f80;
    }

    /* 响应式断点适配 */
    @media (max-width: 980px) {
      .menu { display: none; }
      .hero-grid, .catalog-layout, .foot, form.inquiry-form { grid-template-columns: 1fr; }
      .sidebar { position: static; }
      .product-grid-3x4, .process-grid-3x2, .partners-grid-4x2, .certs-row, .grid5 {
        grid-template-columns: repeat(2, 1fr);
      }
    }