@import url("https://fonts.googleapis.com/css?family=Poppins:300,400,500,600,700,900&display=swap");
@charset "utf-8";
.clear {
  font-size: 0;
  line-height: 0;
  clear: both;
  overflow: hidden;
  zoom: 1;
}
.fr {
  float: right;
}
.fl {
  float: left;
}
a {
  text-decoration: none;
}
a:hover {
  text-decoration: none;
  color: #c01701;
  transition: all 0.2s linear 0s;
}

select.form-control {
    color: #5e6278;
    transition: color .2s ease, background-color .2s ease;
}
select.form-control {
    cursor: pointer;
    background-image: url(images/index/jiantou.svg);
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding: 0 20px;
    width: 100%;
    height: 3.5vw;
    border-radius: 10px;
    border: 1px solid #ddd;
}

  /* ========== 全局重置 ========== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        
        /* ========== 主容器 ========== */
        .contact-wrapper {
			margin: 10rem auto;
            max-width: 88%;
            width: 100%;
            background: rgba(255, 255, 255, 0.72);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-radius: 3rem;            
            padding: 0rem;
            border: 0px solid rgba(255, 255, 255, 0.5);
            transition: all 0.3s ease;
        }

        /* ========== 头部标题 ========== */
        .contact-header {
            text-align: left;
            margin-bottom: 2.8rem;
        }

        .contact-header .badge {
            display: inline-block;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            padding: 0.4rem 1.4rem;
            border-radius: 100px;
            margin-bottom: 0.8rem;
            box-shadow: 0 6px 16px rgba(99, 102, 241, 0.25);
        }

        .contact-header h1 {font-family: "Poppins", sans-serif;
            font-size: 10rem;
            font-weight: 700;
            color: #0b1120;
            letter-spacing: 0em;
            line-height: 1.2;
        }

        .contact-header h1 span {
            background: linear-gradient(135deg, #6366f1, #ec4899);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .contact-header p {
            margin-top: 0.5rem;
            font-size: 1.05rem;
            color: #4b5563;
            max-width: 500px;            
            line-height: 1.6;
        }

        /* ============================================================
                   上部：联系信息卡片（4项）
                   ============================================================ */
        .info-section {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
            margin: 6rem 0 8rem 0;
        }

        .info-item {
            background: rgba(255, 255, 255, 0.55);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            border-radius: 1.4rem;
            padding: 1.4rem 1.2rem 1.2rem;
            border: 1px solid rgba(255, 255, 255, 0.7);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            display: flex;
            align-items: flex-start;
            gap: 0.8rem;
        }

        .info-item:hover {
            transform: translateY(-3px);
            background: rgba(255, 255, 255, 0.8);
            box-shadow: 0 12px 32px -12px rgba(0, 0, 0, 0.08);
            border-color: rgba(99, 102, 241, 0.12);
        }

        .info-item .icon-box {
            flex-shrink: 0;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(236, 72, 153, 0.08));
            color: #6366f1;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .info-item:hover .icon-box {
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            color: #fff;
            box-shadow: 0 8px 18px rgba(99, 102, 241, 0.25);
        }

        .info-item .text h4 {
            font-size: 1.2rem;
            font-weight:normal;
            color: #0b1120;
            margin-bottom: 0.1rem;
        }

        .info-item .text p,
        .info-item .text a {
            font-size: 1rem;
            color: #4b5563;
            line-height: 1.5;
            text-decoration: none;
            transition: color 0.2s;
        }

        .info-item .text a:hover {
            color: #6366f1;
        }

        /* ============================================================
                   下部：图片 + 表单 左右两栏
                   ============================================================ */
        .bottom-section {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 2.5rem;
            align-items: stretch;
        }

        /* ----- 左侧：图片 ----- */
        .image-panel {
            border-radius: 1.8rem;
            overflow: hidden;
            background: linear-gradient(145deg, #eef2ff, #e0e7ff);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.6);
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .image-panel:hover {
            box-shadow: 0 12px 36px -8px rgba(99, 102, 241, 0.08);
            transform: scale(1.004);
        }

        .image-panel img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.6s ease;
        }

        .image-panel:hover img {
            transform: scale(1.02);
        }

        /* 如果图片加载失败，显示占位 */
        .image-panel .placeholder-fallback {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 2rem;
            color: #6366f1;
            text-align: center;
            width: 100%;
            height: 100%;
            min-height: 280px;
        }

        .image-panel .placeholder-fallback i {
            font-size: 4rem;
            margin-bottom: 1rem;
            opacity: 0.6;
        }

        .image-panel .placeholder-fallback span {
            font-size: 1rem;
            font-weight: 500;
            color: #4b5563;
        }

        /* ----- 右侧：表单 ----- */
        .form-panel {
            background: rgba(255, 255, 255, 0.5);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            border-radius: 1.8rem;
            padding: 2rem 2.2rem 2.2rem;
            border: 1px solid rgba(255, 255, 255, 0.7);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.02);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .form-panel:hover {
            background: rgba(255, 255, 255, 0.65);
            box-shadow: 0 16px 40px -12px rgba(0, 0, 0, 0.06);
        }

        .form-panel .form-title {
            font-size: 2rem;
            font-weight: 600;
            color: #0b1120;
            margin-bottom: 1rem;
        }

        .form-panel .form-sub {
            color: #6b7280;
            font-size: 0.92rem;
            margin-bottom: 1.6rem;
        }

        .form-group {
            margin-bottom: 1.2rem;
            position: relative;
        }

        .form-group label {
            display: block;
            font-size: 1rem;
            font-weight: 600;
            color: #1f2937;
            margin-bottom: 0.8rem;
            letter-spacing: 0.02em;
        }

        .form-group .input-wrap {
            position: relative;
        }

        .form-group .input-wrap i {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: #9ca3af;
            font-size: 0.95rem;
            transition: color 0.25s ease;
            pointer-events: none;
        }

        .form-group .input-wrap textarea~i {
            top: 1rem;
            transform: none;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 0.8rem 1rem 0.8rem 2.6rem;
            font-size: 0.95rem;
            font-family: inherit;
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            border: 1.5px solid rgba(209, 213, 219, 0.4);
            border-radius: 1.1rem;
            outline: none;
            transition: all 0.3s ease;
            color: #0b1120;
        }

        .form-group textarea {
            padding: 0.8rem 1rem 0.8rem 2.6rem;
            min-height: 100px;
            resize: vertical;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #6366f1;
            background: rgba(255, 255, 255, 0.9);
            box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.08);
        }

        .form-group input:focus~i,
        .form-group textarea:focus~i {
            color: #6366f1;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #b0b8c4;
            font-weight: 400;
        }

        .btn-submit {
            width: 100%;
            padding: 0.9rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            font-family: inherit;
            border: none;
            border-radius: 1.2rem;
            background: linear-gradient(135deg, #6366f1, #8b5cf6);
            color: #fff;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            box-shadow: 0 8px 24px -6px rgba(99, 102, 241, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.6rem;
            letter-spacing: 0.02em;
            margin-top: 0.2rem;
            position: relative;
            overflow: hidden;
        }

        .btn-submit::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), transparent);
            pointer-events: none;
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 16px 36px -10px rgba(99, 102, 241, 0.4);
            background: linear-gradient(135deg, #4f46e5, #7c3aed);
        }

        .btn-submit:active {
            transform: scale(0.97);
        }

        .btn-submit i {
            font-size: 0.95rem;
            transition: transform 0.25s ease;
        }

        .btn-submit:hover i {
            transform: translateX(4px);
        }

        /* ========== 社交链接（放在右上角或底部） ========== */
        .social-mini {
            display: flex;
            gap: 0.6rem;
            margin-top: 0.8rem;
            justify-content: flex-start;
        }

        .social-mini a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.5);
            color: #1f2937;
            font-size: 1rem;
            border: 1px solid rgba(255, 255, 255, 0.6);
            transition: all 0.25s ease;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            text-decoration: none;
        }

        .social-mini a:hover {
            background: #6366f1;
            color: #fff;
            border-color: #6366f1;
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 10px 24px -8px rgba(99, 102, 241, 0.3);
        }

        .social-mini a:nth-child(2):hover {
            background: #1da1f2;
            border-color: #1da1f2;
            box-shadow: 0 10px 24px -8px rgba(29, 161, 242, 0.3);
        }
        .social-mini a:nth-child(3):hover {
            background: #0a66c2;
            border-color: #0a66c2;
            box-shadow: 0 10px 24px -8px rgba(10, 102, 194, 0.3);
        }
        .social-mini a:nth-child(4):hover {
            background: #e1306c;
            border-color: #e1306c;
            box-shadow: 0 10px 24px -8px rgba(225, 48, 108, 0.3);
        }

        /* ========== Toast ========== */
        .toast {
            position: fixed;
            bottom: 2rem;
            left: 50%;
            transform: translateX(-50%) translateY(80px);
            background: #0b1120;
            color: #f9fafb;
            padding: 0.85rem 2.2rem;
            border-radius: 100px;
            font-size: 0.95rem;
            font-weight: 500;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
            opacity: 0;
            transition: all 0.5s cubic-bezier(0.22, 1, 0.36, 1);
            pointer-events: none;
            z-index: 999;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .toast.show {
            opacity: 1;
            transform: translateX(-50%) translateY(0);
            pointer-events: auto;
        }

        .toast i {
            font-size: 1.1rem;
            color: #34d399;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .contact-wrapper {
                padding: 2rem 1.8rem 2.5rem;
            }

            .info-section {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }

            .bottom-section {
                grid-template-columns: 1fr 1fr;
                gap: 1.8rem;
            }
        }

        @media (max-width: 768px) {
            body {
                padding: 1rem 0rem;
            }

            .contact-wrapper {
                padding: 1.5rem 1.2rem 2rem;
                border-radius: 2rem;
            }

            .contact-header h1 {
                font-size: 1.8rem;
            }

            .info-section {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }

            .info-item {
                padding: 1rem 0.8rem;
                border-radius: 1.2rem;
                flex-direction: column;
                align-items: center;
                text-align: center;
            }

            .info-item .icon-box {
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }

            .info-item .text h4 {
                font-size: 0.85rem;
            }
            .info-item .text p,
            .info-item .text a {
                font-size: 0.85rem;
            }

            .bottom-section {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .image-panel {
                min-height: 200px;
                border-radius: 1.4rem;
                order: -1;
                /* 在移动端图片在上方 */
            }

            .image-panel .placeholder-fallback {
                min-height: 180px;
            }
            .image-panel .placeholder-fallback i {
                font-size: 3rem;
            }

            .form-panel {
                padding: 1.5rem 1.2rem 1.8rem;
                border-radius: 1.4rem;
            }

            .form-panel .form-title {
                font-size: 1.2rem;
            }

            .form-group input,
            .form-group textarea {
                padding: 0.7rem 1rem 0.7rem 2.2rem;
                font-size: 0.92rem;
            }

            .btn-submit {
                font-size: 0.95rem;
                padding: 0.8rem 1rem;
            }
        }

        @media (max-width: 480px) {
            .contact-wrapper {
                padding: 1rem 0.8rem 1.5rem;
                border-radius: 1.5rem;
            }

            .contact-header .badge {
                font-size: 0.65rem;
                padding: 0.25rem 1rem;
            }

            .contact-header h1 {
                font-size: 1.5rem;
            }

            .info-section {
                grid-template-columns: 1fr 1fr;
                gap: 0.6rem;
            }

            .info-item {
                padding: 0.8rem 0.5rem;
                border-radius: 1rem;
            }

            .info-item .icon-box {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
                border-radius: 10px;
            }
            .info-item .text h4 {
                font-size: 0.78rem;
            }
            .info-item .text p,
            .info-item .text a {
                font-size: 0.78rem;
            }

            .image-panel {
                min-height: 160px;
                border-radius: 1.2rem;
            }
            .image-panel .placeholder-fallback {
                min-height: 140px;
            }
            .image-panel .placeholder-fallback i {
                font-size: 2.4rem;
            }
            .image-panel .placeholder-fallback span {
                font-size: 0.85rem;
            }

            .form-panel {
                padding: 1.2rem 1rem 1.5rem;
                border-radius: 1.2rem;
            }
            .form-panel .form-title {
                font-size: 1.1rem;
            }
            .form-panel .form-sub {
                font-size: 0.85rem;
                margin-bottom: 1.2rem;
            }

            .form-group {
                margin-bottom: 0.9rem;
            }
            .form-group input,
            .form-group textarea {
                padding: 0.6rem 0.8rem 0.6rem 2rem;
                font-size: 0.88rem;
                border-radius: 1rem;
            }
            .form-group textarea {
                min-height: 80px;
            }
            .form-group .input-wrap i {
                font-size: 0.85rem;
                left: 0.8rem;
            }

            .btn-submit {
                font-size: 0.9rem;
                padding: 0.7rem 0.8rem;
                border-radius: 1rem;
            }

            .social-mini a {
                width: 34px;
                height: 34px;
                font-size: 0.9rem;
            }

            .toast {
                font-size: 0.85rem;
                padding: 0.7rem 1.5rem;
                bottom: 1.2rem;
            }
        }
/* ============================================================
   移动端适配样式（覆盖现有移动端样式）
   说明：将此代码添加到现有 <style> 标签末尾（</style> 之前）
   所有字体大小使用 vw 单位，最小 3vw
   ============================================================ */

/* ---------- 平板 & 大屏手机 (≤ 768px) ---------- */
@media (max-width: 768px) {

    /* ----- 主容器 ----- */
    .contact-wrapper {
        margin: 3rem auto !important;
        padding: 2.5vw 3.5vw 5vw !important;
        border-radius: 4.5vw !important;
        max-width: 94% !important;
    }

    /* ----- 头部标题 ----- */
    .contact-header {
        margin-bottom: 4vw !important;
    }

    .contact-header .badge {
        font-size: 3vw !important;
        padding: 0.6vw 3vw !important;
        margin-bottom: 1.2vw !important;
    }

    .contact-header h1 {
        font-size: 7.5vw !important;
        line-height: 1.15 !important;
    }

    .contact-header p {
        font-size: 3.6vw !important;
        max-width: 100% !important;
        margin-top: 1.2vw !important;
        line-height: 1.6 !important;
    }

    /* ----- 上部：联系信息卡片（4项 → 2列） ----- */
    .info-section {
        grid-template-columns: 1fr 1fr !important;
        gap: 2.5vw !important;
        margin: 6vw 0 8vw 0 !important;
    }

    .info-item {
        padding: 2.8vw 2.5vw 2.8vw !important;
        border-radius: 3.5vw !important;
        flex-direction: row !important;
        align-items: center !important;
        text-align: left !important;
        gap: 2.5vw !important;
        background: rgba(255, 255, 255, 0.65) !important;
        backdrop-filter: blur(4px) !important;
        -webkit-backdrop-filter: blur(4px) !important;
        border: 1px solid rgba(255, 255, 255, 0.7) !important;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04) !important;
    }

    .info-item .icon-box {
        flex-shrink: 0 !important;
        width: 9vw !important;
        height: 9vw !important;
        min-width: 9vw !important;
        min-height: 9vw !important;
        border-radius: 2.8vw !important;
        font-size: 3.6vw !important;
    }

    .info-item .text h4 {
        font-size: 3.6vw !important;
        font-weight: 500 !important;
        margin-bottom: 0.2vw !important;
    }

    .info-item .text p,
    .info-item .text a {
        font-size: 3.2vw !important;
        line-height: 1.4 !important;
        word-break: break-all !important;
    }

    /* ----- 下部：图片 + 表单（单列） ----- */
    .bottom-section {
        grid-template-columns: 1fr !important;
        gap: 4vw !important;
    }

    /* 左侧图片 */
    .image-panel {
        border-radius: 4vw !important;
        min-height: 38vw !important;
        order: -1 !important;
        overflow: hidden !important;
    }

    .image-panel img {
        width: 100% !important;
        height: 100% !important;
        object-fit: cover !important;
        display: block !important;
    }

    .image-panel .placeholder-fallback {
        min-height: 38vw !important;
        padding: 4vw !important;
    }
    .image-panel .placeholder-fallback i {
        font-size: 10vw !important;
    }
    .image-panel .placeholder-fallback span {
        font-size: 3.6vw !important;
    }

    /* 右侧表单 */
    .form-panel {
        border-radius: 4vw !important;
        padding: 5vw 4.5vw 6vw !important;
        background: rgba(255, 255, 255, 0.6) !important;
        backdrop-filter: blur(6px) !important;
        -webkit-backdrop-filter: blur(6px) !important;
        border: 1px solid rgba(255, 255, 255, 0.7) !important;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03) !important;
    }

    .form-panel .form-title {
        font-size: 5vw !important;
        font-weight: 600 !important;
        margin-bottom: 1.5vw !important;
    }

    .form-panel .form-sub {
        font-size: 3.2vw !important;
        margin-bottom: 3.5vw !important;
        color: #6b7280 !important;
    }

    /* ----- 表单元素 ----- */
    .form-group {
        margin-bottom: 3vw !important;
    }

    .form-group label {
        font-size: 3.4vw !important;
        font-weight: 600 !important;
        margin-bottom: 1.2vw !important;
        color: #1f2937 !important;
    }

    .form-group .input-wrap i {
        font-size: 3.2vw !important;
        left: 2.8vw !important;
    }

    .form-group input,
    .form-group textarea {
        padding: 2.6vw 3vw 2.6vw 8vw !important;
        font-size: 3.4vw !important;
        border-radius: 3vw !important;
        border: 1.5px solid rgba(209, 213, 219, 0.5) !important;
        background: rgba(255, 255, 255, 0.75) !important;
        backdrop-filter: blur(4px) !important;
        -webkit-backdrop-filter: blur(4px) !important;
        color: #0b1120 !important;
        min-height: 12vw !important;
    }

    .form-group textarea {
        padding: 2.6vw 3vw 2.6vw 8vw !important;
        min-height: 28vw !important;
        resize: vertical !important;
    }

    .form-group input:focus,
    .form-group textarea:focus {
        border-color: #6366f1 !important;
        background: rgba(255, 255, 255, 0.9) !important;
        box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.08) !important;
    }

    .form-group input::placeholder,
    .form-group textarea::placeholder {
        font-size: 3.2vw !important;
        color: #b0b8c4 !important;
    }

    /* select 下拉框 */
    select.form-control {
        padding: 2.6vw 5vw 2.6vw 3vw !important;
        font-size: 3.4vw !important;
        height: 12vw !important;
        border-radius: 3vw !important;
        border: 1.5px solid rgba(209, 213, 219, 0.5) !important;
        background: rgba(255, 255, 255, 0.75) !important;
        backdrop-filter: blur(4px) !important;
        -webkit-backdrop-filter: blur(4px) !important;
        background-image: url(images/index/jiantou.svg) !important;
        background-repeat: no-repeat !important;
        background-position: right 3vw center !important;
        background-size: 4vw !important;
        color: #0b1120 !important;
        appearance: auto !important;
        -webkit-appearance: auto !important;
    }

    select.form-control option {
        font-size: 3.4vw !important;
        padding: 1vw 2vw !important;
    }

    /* ----- 提交按钮 ----- */
    .btn-submit {
        padding: 2.8vw 4vw !important;
        font-size: 3.8vw !important;
        border-radius: 3.5vw !important;
        margin-top: 1vw !important;
        gap: 2vw !important;
        box-shadow: 0 6px 20px -6px rgba(99, 102, 241, 0.3) !important;
    }

    .btn-submit i {
        font-size: 3.6vw !important;
    }

    .btn-submit:hover {
        transform: translateY(-0.5vw) !important;
        box-shadow: 0 10px 28px -8px rgba(99, 102, 241, 0.4) !important;
    }

    .btn-submit:active {
        transform: scale(0.97) !important;
    }

    /* ----- 社交小图标 ----- */
    .social-mini {
        gap: 2vw !important;
        margin-top: 2.5vw !important;
    }

    .social-mini a {
        width: 10vw !important;
        height: 10vw !important;
        min-width: 10vw !important;
        min-height: 10vw !important;
        border-radius: 3vw !important;
        font-size: 3.6vw !important;
        background: rgba(255, 255, 255, 0.55) !important;
        border: 1px solid rgba(255, 255, 255, 0.6) !important;
    }

    .social-mini a:hover {
        transform: translateY(-0.5vw) scale(1.02) !important;
    }

    /* ----- Toast 通知 ----- */
    .toast {
        font-size: 3.4vw !important;
        padding: 2.4vw 6vw !important;
        border-radius: 12vw !important;
        bottom: 4vw !important;
        gap: 2vw !important;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18) !important;
    }

    .toast i {
        font-size: 4vw !important;
    }

    .toast.show {
        transform: translateX(-50%) translateY(0) !important;
    }
}


/* ---------- 小屏手机 (≤ 480px) ---------- */
@media (max-width: 480px) {

    /* ----- 主容器 ----- */
    .contact-wrapper {
        margin: 4rem auto !important;
        padding: 3vw 4vw 6vw !important;
        border-radius: 5vw !important;
        max-width: 96% !important;
    }

    /* ----- 头部 ----- */
    .contact-header .badge {
        font-size: 3vw !important;
        padding: 0.8vw 3.5vw !important;
    }

    .contact-header h1 {
        font-size: 8.5vw !important;
    }

    .contact-header p {
        font-size: 3.8vw !important;
    }

    /* ----- 信息卡片：2列 → 1列 ----- */
    .info-section {
        grid-template-columns: 1fr !important;
        gap: 2.5vw !important;
        margin: 5vw 0 7vw 0 !important;
    }

    .info-item {
        padding: 3.2vw 3.5vw 3.2vw !important;
        border-radius: 4vw !important;
        gap: 3vw !important;
    }

    .info-item .icon-box {
        width: 10vw !important;
        height: 10vw !important;
        min-width: 10vw !important;
        min-height: 10vw !important;
        border-radius: 3vw !important;
        font-size: 4vw !important;
    }

    .info-item .text h4 {
        font-size: 4vw !important;
    }

    .info-item .text p,
    .info-item .text a {
        font-size: 3.6vw !important;
    }

    /* ----- 下部 ----- */
    .bottom-section {
        gap: 4.5vw !important;
    }

    .image-panel {
        border-radius: 4.5vw !important;
        min-height: 45vw !important;
    }

    .image-panel .placeholder-fallback {
        min-height: 45vw !important;
    }
    .image-panel .placeholder-fallback i {
        font-size: 12vw !important;
    }
    .image-panel .placeholder-fallback span {
        font-size: 4vw !important;
    }

    .form-panel {
        border-radius: 4.5vw !important;
        padding: 5.5vw 4.5vw 6.5vw !important;
    }

    .form-panel .form-title {
        font-size: 5.5vw !important;
    }

    .form-panel .form-sub {
        font-size: 3.4vw !important;
        margin-bottom: 4vw !important;
    }

    /* ----- 表单元素 ----- */
    .form-group {
        margin-bottom: 3.5vw !important;
    }

    .form-group label {
        font-size: 3.8vw !important;
        margin-bottom: 1.5vw !important;
    }

    .form-group .input-wrap i {
        font-size: 3.6vw !important;
        left: 3vw !important;
    }

    .form-group input,
    .form-group textarea {
        padding: 3vw 3.5vw 3vw 9vw !important;
        font-size: 3.8vw !important;
        border-radius: 3.5vw !important;
        min-height: 13vw !important;
    }

    .form-group textarea {
        min-height: 32vw !important;
        padding: 3vw 3.5vw 3vw 9vw !important;
    }

    .form-group input::placeholder,
    .form-group textarea::placeholder {
        font-size: 3.4vw !important;
    }

    select.form-control {
        padding: 3vw 5vw 3vw 3.5vw !important;
        font-size: 3.8vw !important;
        height: 13vw !important;
        border-radius: 3.5vw !important;
        background-position: right 3.5vw center !important;
        background-size: 4.5vw !important;
    }

    select.form-control option {
        font-size: 3.8vw !important;
    }

    /* ----- 按钮 ----- */
    .btn-submit {
        padding: 3.2vw 5vw !important;
        font-size: 4.2vw !important;
        border-radius: 4vw !important;
        gap: 2.5vw !important;
    }

    .btn-submit i {
        font-size: 4vw !important;
    }

    /* ----- 社交图标 ----- */
    .social-mini {
        gap: 2.5vw !important;
        margin-top: 3vw !important;
    }

    .social-mini a {
        width: 11vw !important;
        height: 11vw !important;
        min-width: 11vw !important;
        min-height: 11vw !important;
        border-radius: 3.5vw !important;
        font-size: 4vw !important;
    }

    /* ----- Toast ----- */
    .toast {
        font-size: 3.6vw !important;
        padding: 2.8vw 7vw !important;
        border-radius: 14vw !important;
        bottom: 5vw !important;
        gap: 2.5vw !important;
    }

    .toast i {
        font-size: 4.5vw !important;
    }
}