* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #e8edf5 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .contact-container {
            max-width: 480px;
            width: 100%;
            background: #ffffff;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.10);
            padding: 40px 30px 35px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        /* 顶部装饰线 */
        .contact-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #12b7f5, #07c160, #12b7f5);
            background-size: 200% 100%;
            animation: gradientMove 3s ease infinite;
        }

        @keyframes gradientMove {
            0%,
            100% {
                background-position: 0% 50%;
            }
            50% {
                background-position: 100% 50%;
            }
        }

        .contact-container h1 {
            font-size: 28px;
            color: #1a1a2e;
            margin-bottom: 6px;
            margin-top: 4px;
        }

        .contact-container .subtitle {
            color: #999;
            font-size: 14px;
            margin-bottom: 28px;
            padding-bottom: 22px;
            border-bottom: 2px solid #f0f2f5;
            letter-spacing: 1px;
        }

        /* ===== 客服卡片 ===== */
        .contact-item {
            background: #f8f9fc;
            border-radius: 14px;
            padding: 22px 18px 20px;
            margin-bottom: 18px;
            transition: all 0.35s ease;
            border: 2px solid transparent;
            position: relative;
        }

        .contact-item:hover {
            border-color: #4a90d9;
            background: #f0f4ff;
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(74, 144, 217, 0.12);
        }

        .contact-item .icon {
            font-size: 34px;
            display: block;
            margin-bottom: 4px;
        }

        .contact-item .label {
            font-size: 16px;
            font-weight: 600;
            color: #1a1a2e;
            margin-bottom: 6px;
        }

        .contact-item .value {
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 0.5px;
            padding: 4px 14px;
            background: #fff;
            border-radius: 8px;
            display: inline-block;
            margin-bottom: 6px;
            border: 1px solid #e8ecf1;
        }

        .contact-item .value.qq {
            color: #12b7f5;
        }

        .contact-item .value.wechat {
            color: #07c160;
        }

        .contact-item .hint {
            font-size: 12px;
            color: #aaa;
            margin-top: 4px;
        }

        /* ===== 按钮 ===== */
        .btn-group {
            display: flex;
            justify-content: center;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 10px;
        }

        .btn {
            display: inline-block;
            padding: 8px 22px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            text-decoration: none;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            background: #e8ecf1;
            color: #555;
        }

        .btn:hover {
            transform: scale(1.03);
        }
        .btn:active {
            transform: scale(0.96);
        }

        .btn-qq {
            background: #12b7f5;
            color: #fff;
        }
        .btn-qq:hover {
            background: #0ea5e0;
            box-shadow: 0 4px 14px rgba(18, 183, 245, 0.35);
        }

        .btn-wechat {
            background: #07c160;
            color: #fff;
        }
        .btn-wechat:hover {
            background: #06ad56;
            box-shadow: 0 4px 14px rgba(7, 193, 96, 0.35);
        }

        .btn-qrcode {
            background: #8b8cf7;
            color: #fff;
        }
        .btn-qrcode:hover {
            background: #7c7df0;
            box-shadow: 0 4px 14px rgba(139, 140, 247, 0.35);
        }

        .btn-copy {
            background: #e8ecf1;
            color: #555;
        }
        .btn-copy:hover {
            background: #d5dae3;
        }
        .btn-copy.copied {
            background: #07c160;
            color: #fff;
        }

        /* ===== 分隔线 ===== */
        .divider {
            display: flex;
            align-items: center;
            margin: 22px 0 20px;
            color: #ccc;
            font-size: 13px;
        }

        .divider::before,
        .divider::after {
            content: "";
            flex: 1;
            height: 1px;
            background: #e8ecf1;
        }

        .divider::before {
            margin-right: 16px;
        }
        .divider::after {
            margin-left: 16px;
        }

        /* ===== 服务时间 ===== */
        .extra-info {
            color: #666;
            font-size: 14px;
            line-height: 2;
        }

        .extra-info .time {
            color: #faad14;
            font-weight: 600;
        }

        .extra-info .reply-hint {
            color: #bbb;
            font-size: 12px;
            display: block;
            margin-top: 2px;
        }

        /* ===== Toast 提示 ===== */
        .toast {
            position: fixed;
            top: 18%;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(0, 0, 0, 0.78);
            color: #fff;
            padding: 12px 30px;
            border-radius: 10px;
            font-size: 14px;
            opacity: 0;
            transition: opacity 0.35s ease;
            pointer-events: none;
            z-index: 999;
            backdrop-filter: blur(4px);
            max-width: 90%;
        }
        .toast.show {
            opacity: 1;
        }

        /* ================================================================ */
        /*  🖼️ 弹窗样式 */
        /* ================================================================ */
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.55);
            backdrop-filter: blur(6px);
            z-index: 1000;
            justify-content: center;
            align-items: center;
            animation: fadeIn 0.3s ease;
        }

        .modal-overlay.active {
            display: flex;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: scale(0.95);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        .modal-box {
            background: #ffffff;
            border-radius: 20px;
            padding: 30px 28px 28px;
            max-width: 380px;
            width: 90%;
            text-align: center;
            position: relative;
            box-shadow: 0 30px 80px rgba(0, 0, 0, 0.25);
            animation: modalPop 0.35s ease;
        }

        @keyframes modalPop {
            0% {
                opacity: 0;
                transform: scale(0.85) translateY(20px);
            }
            100% {
                opacity: 1;
                transform: scale(1) translateY(0);
            }
        }

        .modal-close {
            position: absolute;
            top: 12px;
            right: 16px;
            font-size: 26px;
            color: #bbb;
            cursor: pointer;
            transition: color 0.2s;
            background: none;
            border: none;
            line-height: 1;
        }

        .modal-close:hover {
            color: #e74c3c;
        }

        .modal-box .modal-title {
            font-size: 18px;
            font-weight: 600;
            color: #1a1a2e;
            margin-bottom: 6px;
        }

        .modal-box .modal-sub {
            font-size: 13px;
            color: #999;
            margin-bottom: 16px;
        }

        .modal-box .modal-qrcode {
            width: 200px;
            height: 200px;
            border-radius: 14px;
            border: 3px solid #f0f2f5;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
            object-fit: cover;
            background: #fff;
        }

        .modal-box .modal-qrcode:hover {
            transform: scale(1.02);
            transition: transform 0.3s;
        }

        .modal-box .modal-hint {
            font-size: 12px;
            color: #bbb;
            margin-top: 14px;
        }

        .modal-box .modal-hint span {
            color: #07c160;
            font-weight: 600;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 480px) {
            .contact-container {
                padding: 28px 16px 25px;
            }
            .contact-container h1 {
                font-size: 22px;
            }
            .contact-item .value {
                font-size: 17px;
            }
            .btn {
                padding: 6px 16px;
                font-size: 12px;
            }
            .modal-box {
                padding: 24px 20px 22px;
            }
            .modal-box .modal-qrcode {
                width: 160px;
                height: 160px;
            }
        }