:root {
        --primary-orange: #FF9800;
        --hover-orange: #E68A00;
        --primary-blue: #0066cc;      /* 蓝色按钮/移动端顶部栏 */
        --bg-light: #fdfdfd;           /* 灰白色背景 */
        --text-dark: #333;
        --text-grey: #666;
        --border-color: #eeeeee;
        --container-max-width: 1480px;
    }
#kf-float {
  position: fixed;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

#kf-float a,
#kf-float button {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(0,0,0,.18);
  transition: .25s;
  position: relative;
}

#kf-float a:hover,
#kf-float button:hover {
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 14px 30px rgba(0,0,0,.28);
}

.kf-inquiry {
  background: #FFC531;
}

.kf-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  background: #ff3b30;
  color: #fff;
  font-weight: 700;
  font-size: clamp(8px,1.8vw,10px);
  padding: clamp(2px,0.8vw,4px) clamp(5px,1.6vw,7px);
  border-radius: 20px;
  box-shadow: 0 3px 8px rgba(0,0,0,.25);
  letter-spacing: .5px;
  white-space: nowrap;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #fff;
}

#kf-float svg {
  width: 28px;
  height: 28px;
}

@media(max-width:768px) {
  #kf-float {
    right: 12px;
    gap: 12px;
  }
  #kf-float a,
  #kf-float button {
    width: 56px;
    height: 56px;
  }
  #kf-float svg {
    width: 24px;
    height: 24px;
  }
}

@media(max-width:480px) {
  #kf-float {
    right: 10px;
  }
  #kf-float a,
  #kf-float button {
    width: 52px;
    height: 52px;
  }
}
.footer-links a:hover,
.footer-contact li:hover span,
.social-icons a:hover {
    color: #ffffff !important;
    transform: translateX(3px);
}
.footer-links a i,
.social-icons a {
    transition: all 0.3s ease;
}
.social-icons a:hover {
    color: #ffaa00 !important;
    transform: translateY(-3px);
}
@media screen and (max-width: 1200px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 30px !important;
    }
}
@media screen and (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr !important;
        gap: 40px !important;
    }
    .footer-container {
        padding: 40px 20px 20px !important;
    }
    .footer-title {
        margin-bottom: 20px !important;
    }
    .social-icons {
        text-align: center;
    }
}
@media screen and (max-width: 480px) {
    .footer-contact li {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 5px !important;
    }
}
    @media (max-width: 1024px) {
        .main-content {
            padding-top: 100px;
        }
    }
    
    * { margin: 0; padding: 0; box-sizing: border-box; }
    body { 
        font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; 
        color: var(--text-dark); 
        line-height: 1.5; 
        background: #fff; 
    }

    /* --- 1. 布局容器 --- */
    .alignment-container {
        max-width: var(--container-max-width);
        margin: 0 auto;
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
        padding: 0 20px;
    }

    /* --- 2. 顶部工具栏 (Top Bar) 电脑端灰白色，移动端蓝色 --- */
    .top-bar { 
        background: var(--bg-light);          /* 电脑端灰白 */
        border-bottom: 1px solid var(--border-color);
        padding: 10px 0; 
        font-size: 13px; 
        position: relative;
        z-index: 1001;
        color: var(--text-grey);              /* 灰色文字 */
    }
    .top-left { display: flex; gap: 30px; align-items: center; }
    .contact-item { 
        color: var(--text-grey);               /* 灰色 */
        text-decoration: none; 
        transition: 0.3s; 
        display: flex; 
        align-items: center; 
        gap: 8px; 
    }
    .contact-item:hover { color: var(--primary-orange); }

    /* WhatsApp 图标颜色继承当前文字颜色 */
    .wa-icon::before {
        content: "";
        display: inline-block;
        width: 16px;
        height: 16px;
        background-color: currentColor;
        mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 448 512'%3e%3cpath d='M380.9 97.1C339 55.1 283.2 32 223.9 32c-122.4 0-222 99.6-222 222 0 39.1 10.2 77.3 29.6 111L0 480l117.7-30.9c32.4 17.7 68.9 27 106.1 27h.1c122.3 0 224.1-99.6 224.1-222 0-59.3-25.2-115-67.1-157zm-157 341.6c-33.1 0-65.6-8.9-94-25.7l-6.7-4-69.8 18.3L72 359.2l-4.4-7c-18.5-29.4-28.2-63.3-28.2-98.2 0-101.7 82.8-184.5 184.6-184.5 49.3 0 95.6 19.2 130.4 54.1 34.8 34.9 56.2 81.2 56.1 130.5 0 101.8-84.9 184.6-186.6 184.6zm101.2-138.2c-5.5-2.8-32.8-16.2-37.9-18-5.1-1.9-8.8-2.8-12.5 2.8-3.7 5.6-14.3 18-17.6 21.8-3.2 3.7-6.5 4.2-12 1.4-5.5-2.8-23.4-8.6-44.6-27.5-16.4-14.7-27.5-32.8-30.7-38.3-3.2-5.6-.3-8.6 2.5-11.4 2.5-2.5 5.5-6.5 8.3-9.7 2.8-3.2 3.7-5.5 5.6-9.2 1.9-3.7.9-6.9-.5-9.7-1.4-2.8-12.5-30.1-17.1-41.2-4.5-10.8-9.1-9.3-12.5-9.5-3.2-.2-6.9-.2-10.6-.2-3.7 0-9.7 1.4-14.8 6.9-5.1 5.6-19.4 19-19.4 46.3 0 27.3 19.9 53.7 22.6 57.4 2.8 3.7 39.1 59.7 94.8 83.8 13.2 5.8 23.5 9.2 31.6 11.8 13.3 4.2 25.4 3.6 35 2.2 10.7-1.5 32.8-13.4 37.4-26.4 4.6-13 4.6-24.1 3.2-26.4-1.3-2.5-5-3.9-10.5-6.6z'/%3e%3c/svg%3e") no-repeat center;
        -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 448 512'%3e%3cpath d='M380.9 97.1C339 55.1 283.2 32 223.9 32c-122.4 0-222 99.6-222 222 0 39.1 10.2 77.3 29.6 111L0 480l117.7-30.9c32.4 17.7 68.9 27 106.1 27h.1c122.3 0 224.1-99.6 224.1-222 0-59.3-25.2-115-67.1-157zm-157 341.6c-33.1 0-65.6-8.9-94-25.7l-6.7-4-69.8 18.3L72 359.2l-4.4-7c-18.5-29.4-28.2-63.3-28.2-98.2 0-101.7 82.8-184.5 184.6-184.5 49.3 0 95.6 19.2 130.4 54.1 34.8 34.9 56.2 81.2 56.1 130.5 0 101.8-84.9 184.6-186.6 184.6zm101.2-138.2c-5.5-2.8-32.8-16.2-37.9-18-5.1-1.9-8.8-2.8-12.5 2.8-3.7 5.6-14.3 18-17.6 21.8-3.2 3.7-6.5 4.2-12 1.4-5.5-2.8-23.4-8.6-44.6-27.5-16.4-14.7-27.5-32.8-30.7-38.3-3.2-5.6-.3-8.6 2.5-11.4 2.5-2.5 5.5-6.5 8.3-9.7 2.8-3.2 3.7-5.5 5.6-9.2 1.9-3.7.9-6.9-.5-9.7-1.4-2.8-12.5-30.1-17.1-41.2-4.5-10.8-9.1-9.3-12.5-9.5-3.2-.2-6.9-.2-10.6-.2-3.7 0-9.7 1.4-14.8 6.9-5.1 5.6-19.4 19-19.4 46.3 0 27.3 19.9 53.7 22.6 57.4 2.8 3.7 39.1 59.7 94.8 83.8 13.2 5.8 23.5 9.2 31.6 11.8 13.3 4.2 25.4 3.6 35 2.2 10.7-1.5 32.8-13.4 37.4-26.4 4.6-13 4.6-24.1 3.2-26.4-1.3-2.5-5-3.9-10.5-6.6z'/%3e%3c/svg%3e") no-repeat center;
        mask-size: contain;
    }

    /* 语言选择器保持默认样式 */
    .lang-select {
        background: #fff;
        color: var(--text-dark);
        border: 1px solid var(--border-color);
        padding: 4px 8px;
        border-radius: 4px;
        font-size: 13px;
        cursor: pointer;
    }

    /* --- 3. 导航页眉 (Header) --- */
    header { 
        background: #fff; 
        position: sticky; 
        top: 0; 
        z-index: 1000; 
        box-shadow: 0 2px 10px rgba(0,0,0,0.05); 
    }
    .nav-wrapper { height: 90px; }
    .logo img { height: 55px; width: auto; display: block; }

    /* 右侧导航容器（菜单 + 按钮） */
    .nav-right {
        display: flex;
        align-items: center;
        gap: 20px;
    }

    /* PC 菜单 */
    .desktop-menu { display: flex; list-style: none; height: 100%; align-items: center; margin: 0; padding: 0; }
    .nav-item { position: relative; height: 100%; display: flex; align-items: center; }
    .nav-link { text-decoration: none; color: var(--text-dark); font-weight: 700; font-size: 16px; padding: 0 20px; transition: 0.3s; }
    .nav-item:hover > .nav-link { color: var(--primary-orange); }

    .dropdown {
        position: absolute; top: 100%; left: 0; background: #fff; list-style: none; padding: 10px 0; min-width: 220px;
        box-shadow: 0 8px 30px rgba(0,0,0,0.12); opacity: 0; visibility: hidden; transform: translateY(10px); transition: 0.3s;
        z-index: 1000;
    }
    .nav-item:hover > .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
    .dropdown a { display: block; padding: 12px 20px; color: #444; text-decoration: none; font-size: 14px; }
    .dropdown a:hover { background: #fffcf5; color: var(--primary-orange); }

    /* 询盘按钮（蓝色，宽度自适应内容） */
    .btn-inquiry-blue {
        background: var(--primary-blue);
        color: #fff !important;
        text-decoration: none;
        height: 42px;
        line-height: 42px;
        padding: 0 25px;
        border-radius: 40px;
        font-weight: 700;
        display: inline-block;
        transition: background 0.3s;
        white-space: nowrap;         /* 防止文字换行 */
    }
    .btn-inquiry-blue:hover {
        background: #0052a3;
    }

    /* 移动端汉堡菜单按钮（默认隐藏，移动端显示） */
    .mobile-toggle {
        display: none;
        font-size: 28px;
        color: var(--primary-orange);
        cursor: pointer;
    }

    /* --- 4. 移动端自适应 --- */
    @media (max-width: 1024px) {
        /* 置顶工具栏固定在顶部，背景蓝色，文字白色 */
        .top-bar { 
            position: fixed; 
            top: 0; 
            left: 0; 
            width: 100%; 
            background: var(--primary-blue) !important; /* 蓝色覆盖 */
            border-bottom: none;
            padding: 8px 0; 
            height: 40px;
            display: flex;
            align-items: center;
            color: #fff !important;
        }
        .top-bar-container { justify-content: center !important; }
        .top-right, .contact-item:not(.wa-only) { display: none !important; }
        
        .contact-item.wa-only { 
            color: #ffffff !important; 
            font-size: 14px; 
            font-weight: 700;
        }
        /* WhatsApp 图标变白 */
        .contact-item.wa-only .wa-icon::before {
            background-color: #ffffff;
        }

        /* 调整 Header 位置防止重叠 */
        header { position: fixed; top: 40px; left: 0; width: 100%; } 
        .nav-wrapper { height: 60px; padding: 0 15px; }
        .logo img { height: 35px; }
        
        /* 隐藏桌面菜单和询盘按钮 */
        .desktop-menu { display: none !important; }
        .btn-inquiry-blue { display: none !important; } /* 移动端隐藏询盘按钮 */
        
        /* 显示汉堡菜单按钮 */
        .mobile-toggle { display: block; }

        /* 全屏抽屉式菜单 */
        .mobile-drawer {
            position: fixed; top: 0; right: -100%; width: 100%; 
            height: 100%; background: #fff; z-index: 2000; transition: 0.4s ease;
            display: flex; flex-direction: column;
        }
        .mobile-drawer.active { right: 0; }

        .drawer-header { 
            height: 60px;
            padding: 0 20px; 
            display: flex; 
            align-items: center; 
            justify-content: flex-end; 
            border-bottom: 1px solid #f0f0f0;
            flex-shrink: 0;
        }
        .close-btn { 
            font-size: 35px; 
            cursor: pointer; 
            color: var(--primary-orange); 
            padding: 5px;
            line-height: 1;
        }

        .drawer-body { flex: 1; overflow-y: auto; }

        .m-link { 
            display: flex; justify-content: space-between; align-items: center;
            padding: 18px 25px; color: var(--text-dark); text-decoration: none; 
            font-weight: 700; border-bottom: 1px solid #f9f9f9; 
        }
        .toggle-sub span { 
            font-size: 10px; color: #ccc; transition: 0.3s;
        }
        .m-sub { list-style: none; background: #fafafa; display: none; }
        .m-sub.active { display: block; }
        .m-sub .m-link { padding-left: 45px; font-weight: 500; background: #fdfdfd; justify-content: flex-start; }
        
        /* 三级菜单样式 */
        .m-sub .m-sub {
            margin-left: 20px;
            background: #f5f5f5;
        }
        .m-sub .m-sub .m-link {
            padding-left: 65px !important;
            font-size: 13px;
        }
    }
/* 桌面端三级菜单样式 */
.dropdown .dropdown {
    position: absolute;
    top: 0;
    left: 100%;
    margin-top: -10px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: 0.3s;
}

.dropdown .dropdown-item:hover > .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.dropdown-item.arrow::after {
    content: "›";
    float: right;
    font-size: 16px;
    font-weight: bold;
}