:root {
            --bg-start: #e6eef8;
            --bg-mid: #dce6f4;
            --bg-end: #eaf1fa;
            --card-bg: rgba(255, 255, 255, 0.38);
            --card-bg-fallback: #f8fafd;
            --card-border: rgba(255, 255, 255, 0.55);
            --card-highlight: rgba(255, 255, 255, 0.75);
            --primary-blue: #4a85c5;
            --primary-blue-dark: #34689e;
            --primary-blue-light: #6da3db;
            --primary-blue-soft: rgba(74, 133, 197, 0.08);
            --text: #2c3848;
            --text-light: #5c6b7d;
            --text-lighter: #7a8899;
            --border-soft: rgba(180, 200, 225, 0.45);
            --border-input: rgba(170, 195, 220, 0.55);
            --accent-green: #58BD38;
            --accent-green-dark: #3d8a25;
            --accent-green-glow: rgba(88, 189, 56, 0.28);
            --shadow-sm: 0 2px 8px rgba(40, 60, 90, 0.05);
            --shadow: 0 6px 24px rgba(40, 60, 90, 0.07);
            --shadow-lg: 0 12px 40px rgba(40, 60, 90, 0.10);
            --radius-sm: 14px;
            --radius: 20px;
            --radius-lg: 26px;
            --radius-xl: 30px;
            --transition: 0.18s ease;
            --blur-amount: 18px;
        }

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

        body {
            font-family: '微软雅黑', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background:
                radial-gradient(ellipse at 18% 12%, rgba(130, 175, 225, 0.18) 0%, transparent 55%),
                radial-gradient(ellipse at 78% 55%, rgba(100, 155, 215, 0.13) 0%, transparent 50%),
                radial-gradient(ellipse at 45% 82%, rgba(150, 195, 240, 0.15) 0%, transparent 55%),
                radial-gradient(ellipse at 65% 28%, rgba(160, 200, 235, 0.10) 0%, transparent 45%),
                linear-gradient(168deg, #e8f0f9 0%, #dde7f5 30%, #e4ecf7 55%, #ecf3fb 100%);
            background-attachment: fixed;
            color: var(--text);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 24px 20px 24px 20px;
            position: relative;
        }

        body::before {
            content: '';
            position: fixed;
            top: -120px;
            right: -80px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(180, 210, 245, 0.22) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
            animation: floatGlow 14s ease-in-out infinite;
        }

        body::after {
            content: '';
            position: fixed;
            bottom: -100px;
            left: -90px;
            width: 340px;
            height: 340px;
            background: radial-gradient(circle, rgba(160, 200, 240, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 0;
            animation: floatGlow 18s ease-in-out 5s infinite reverse;
        }

        @keyframes floatGlow {
            0%,
            100% {
                transform: translate(0, 0) scale(1);
            }
            25% {
                transform: translate(18px, -20px) scale(1.06);
            }
            50% {
                transform: translate(-8px, 14px) scale(0.95);
            }
            75% {
                transform: translate(-16px, -10px) scale(1.04);
            }
        }

        .container {
            width: 100%;
            max-width: 800px;
            display: flex;
            flex-direction: column;
            gap: 1.6rem;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        /* ========== 玻璃拟态卡片 ========== */
        .card {
            background: var(--card-bg);
            background: rgba(255, 255, 255, 0.65);
            backdrop-filter: blur(var(--blur-amount));
            -webkit-backdrop-filter: blur(var(--blur-amount));
            border-radius: var(--radius-xl);
            padding: 5% 8% 10% 8%;
            box-shadow:
                0 8px 36px rgba(50, 70, 100, 0.08),
                0 2px 8px rgba(50, 70, 100, 0.04),
                inset 0 1px 0 rgba(255, 255, 255, 0.7),
                inset 0 -1px 0 rgba(200, 215, 235, 0.2);
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            transition: box-shadow 0.4s ease, transform 0.25s ease, border-color 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg,
                    transparent 0%,
                    rgba(255, 255, 255, 0.6) 20%,
                    rgba(255, 255, 255, 0.9) 50%,
                    rgba(255, 255, 255, 0.6) 80%,
                    transparent 100%);
            pointer-events: none;
            z-index: 2;
            border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        }

        .card::after {
            content: '';
            position: absolute;
            top: 8%;
            right: 6%;
            width: 70px;
            height: 70px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.5) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
            z-index: 1;
            opacity: 0.6;
            animation: shimmer 8s ease-in-out infinite;
        }

        @keyframes shimmer {
            0%,
            100% {
                opacity: 0.4;
                transform: scale(1);
            }
            50% {
                opacity: 0.75;
                transform: scale(1.25);
            }
        }

        .card:hover {
            box-shadow:
                0 14px 48px rgba(50, 70, 100, 0.12),
                0 4px 12px rgba(50, 70, 100, 0.06),
                inset 0 1px 0 rgba(255, 255, 255, 0.8),
                inset 0 -1px 0 rgba(200, 215, 235, 0.2);
            border-color: rgba(255, 255, 255, 0.65);
            transform: translateY(-2px);
        }

        /* 头部 */
        .header {
            text-align: left;
            padding: 18px 6px 8px 6px;
            position: relative;
            z-index: 3;
        }

        h1 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #2c4a6e;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 5px;
            line-height: 2em;
            letter-spacing: 0.02em;
        }

        h1 span {
            font-size: 2rem;
            filter: drop-shadow(0 2px 4px rgba(60, 100, 160, 0.15));
        }

        .subtitle {
            font-size: 15px;
            color: var(--text-light);
            margin-bottom: 1.0rem;
            border-left: 3px solid var(--primary-blue-light);
            padding-left: 1rem;
            font-weight: normal;
            letter-spacing: 0.02em;
            color: #5c6b7d;
        }

        h2 {
            font-weight: 600;
            font-size: 1.25rem;
            color: #2c4a6e;
            margin-bottom: 0.8rem;
            letter-spacing: 0.02em;
        }

        .form-group {
            margin-bottom: 30px;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
            position: relative;
            z-index: 3;
        }

        label {
            font-weight: 600;
            font-size: 1.0rem;
            color: #34455a;
            display: flex;
            align-items: center;
            gap: 0.3rem;
            letter-spacing: 0.01em;
        }

        label .required-star {
            color: #e07060;
            font-weight: 700;
        }

        select,
        input[type="text"] {
            width: 100%;
            padding: 0.95rem 1.1rem;
            border: 1.5px solid var(--border-input);
            border-radius: var(--radius-sm);
            font-size: 0.98rem;
            background: rgba(255, 255, 255, 0.5);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            color: var(--text);
            transition: all var(--transition);
            font-family: inherit;
            -webkit-appearance: none;
            appearance: none;
            box-shadow: inset 0 1px 3px rgba(40, 60, 90, 0.04);
            letter-spacing: 0.01em;
        }

        select {
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="%234a85c5" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"/></svg>');
            background-repeat: no-repeat;
            background-position: right 1rem center;
            background-size: 1.1rem;
            padding-right: 2.5rem;
            cursor: pointer;
        }

        input[type="text"]:focus,
        select:focus {
            outline: none;
            border-color: var(--primary-blue-light);
            box-shadow: 0 0 0 5px rgba(74, 133, 197, 0.08), inset 0 1px 3px rgba(40, 60, 90, 0.03);
            background: rgba(255, 255, 255, 0.7);
        }

        /* 地区提示 */
        .region-hint {
            font-size: 0.9rem;
            color: #5a7899;
            background: rgba(235, 243, 252, 0.7);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            border: 1px dashed rgba(130, 170, 210, 0.5);
            border-radius: 10px;
            padding: 0.6rem 0.9rem;
            margin-top: 0.25rem;
            display: none;
            line-height: 28px;
            animation: fadeIn 0.3s ease;
            font-weight: 500;
        }

        .region-hint.show {
            display: block;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-6px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 额外服务标签式选择 */
        .extra-services-wrapper {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-top: 0.15rem;
        }

        .extra-chip {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.6rem 0.9rem;
            border-radius: 28px;
            cursor: pointer;
            font-size: 0.88rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            border: 2px solid rgba(170, 195, 220, 0.5);
            background: rgba(255, 255, 255, 0.4);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            color: #4a5f75;
            transition: all 0.22s ease;
            user-select: none;
            -webkit-tap-highlight-color: transparent;
            white-space: nowrap;
        }

        .extra-chip:hover {
            border-color: rgba(120, 165, 210, 0.7);
            background-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(40, 60, 90, 0.08);
        }

        .extra-chip input[type="checkbox"] {
            position: absolute;
            opacity: 0;
            pointer-events: none;
            width: 0;
            height: 0;
        }

        .extra-chip .chip-icon {
            width: 1.05rem;
            height: 1.05rem;
            border-radius: 50%;
            border: 2px solid #bcc8d8;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.65rem;
            transition: all 0.22s ease;
            flex-shrink: 0;
            color: transparent;
            background: rgba(255, 255, 255, 0.7);
        }

        .extra-chip:has(input:checked) {
            background-color: #4a85c5;
            color: #fff;
            border-color: #4a85c5;
            box-shadow: 0 5px 18px rgba(50, 100, 160, 0.3);
            font-weight: 600;
        }

        .extra-chip:has(input:checked) .chip-icon {
            background: #fff;
            border-color: #fff;
            color: #34689e;
            font-weight: 700;
        }

        .extra-chip:has(input:checked):hover {
            background: #3d76b5;
            border-color: #3d76b5;
            box-shadow: 0 7px 22px rgba(50, 100, 160, 0.4);
            transform: translateY(-2px);
        }

        /* ========== 绿色3D立体按钮 ========== */
        .btn {
            width: 100%;
            background: #58BD38;
            background: linear-gradient(180deg, #68c94a 0%, #58BD38 40%, #4eaa30 100%);
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            color: white;
            font-weight: 700;
            font-size: 20px;
            padding: 18px;
            border-radius: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            cursor: pointer;
            box-shadow:
                0 10px 0 #3a8022,
                0 14px 28px rgba(88, 189, 56, 0.30),
                0 4px 10px rgba(88, 189, 56, 0.18),
                inset 0 1px 0 rgba(255, 255, 255, 0.45);
            margin-top: 8px;
            transition: all 0.10s ease;
            position: relative;
            z-index: 3;
            letter-spacing: 0.03em;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
            -webkit-tap-highlight-color: transparent;
        }

        .btn:hover {
            background: linear-gradient(180deg, #70d052 0%, #5fc440 40%, #55b436 100%);
            box-shadow:
                0 10px 0 #3a8022,
                0 18px 34px rgba(88, 189, 56, 0.38),
                0 6px 14px rgba(88, 189, 56, 0.22),
                inset 0 1px 0 rgba(255, 255, 255, 0.5);
            transform: translateY(-1px);
        }

        .btn:active {
            background: #58BD38;
            background: linear-gradient(180deg, #4eaa30 0%, #58BD38 30%, #5abf3a 100%);
            box-shadow:
                0 2px 0 #3a8022,
                0 5px 12px rgba(88, 189, 56, 0.20),
                0 2px 5px rgba(88, 189, 56, 0.10),
                inset 0 2px 4px rgba(0, 0, 0, 0.18),
                inset 0 -1px 0 rgba(255, 255, 255, 0.2);
            transform: translateY(8px);
            transition: all 0.05s ease;
        }

        .btn:disabled {
            opacity: 0.6;
            cursor: not-allowed;
            transform: none;
            box-shadow:
                0 3px 0 #2d5e18,
                0 5px 10px rgba(88, 189, 56, 0.12),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
            background: #4a9e30;
            filter: grayscale(15%);
            text-shadow: none;
        }

        .btn-outline {
            background: transparent;
            border: 2px solid var(--primary-blue);
            color: var(--primary-blue-dark);
            box-shadow: none;
            text-shadow: none;
            background: rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .btn-outline:hover {
            background: rgba(235, 243, 252, 0.6);
            color: #2c5a8a;
        }

        /* 结果区域 */
        .result-box {
            background: rgba(255, 255, 255, 0.45);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: 18px;
            padding: 1.5rem 1.4rem;
            margin-top: 1.4rem;
            border: 1.5px solid rgba(180, 200, 225, 0.5);
            text-align: center;
            animation: fadeIn 0.4s ease;
            box-shadow:
                inset 0 1px 0 rgba(255, 255, 255, 0.6),
                0 4px 16px rgba(40, 60, 90, 0.05);
            position: relative;
            z-index: 3;
        }

        .result-price {
            font-size: 2.5rem;
            font-weight: 700;
            color: #2c4a6e;
            letter-spacing: 0.02em;
            line-height: 1.2;
        }

        .result-detail {
            font-size: 0.88rem;
            color: #4a5f75;
            margin-top: 0.4rem;
            line-height: 1.5;
        }

        .result-extra-hint {
            display: inline-block;
            margin-top: 0.5rem;
            font-size: 1.0rem;
            color: #4a85c5;
            background: rgba(235, 243, 252, 0.7);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            border-radius: 8px;
            padding: 10px 16px;
            border: 1px dashed rgba(130, 170, 210, 0.55);
            font-weight: 600;
        }

        .disclaimer {
            font-size: 0.9rem;
            color: #5c6b7d;
            margin-top: 0.9rem;
            border-top: 1px dashed rgba(170, 195, 220, 0.5);
            padding-top: 0.8rem;
            line-height: 1.8;
            text-align: left;
        }

        .divider {
            border: none;
            border-top: 1px solid rgba(180, 200, 225, 0.4);
            margin: 1rem 0;
        }

        .two-cols {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0.7rem;
        }

        #submitFeedback {
            margin-top: 50px;
            text-align: center;
            font-size: 0.9rem;
            font-weight: 600;
            min-height: 1.4rem;
            transition: color 0.3s;
            color: #58BD38;
        }

        /* 底部隐私提示 */
        .bottom-notice {
            text-align: center;
            font-size: 0.9rem;
            color: #6b7d90;
            letter-spacing: 0;
            line-height: 32px;
            margin-top: 0.3rem;
            padding: 0.5rem 0;
            position: relative;
            z-index: 3;
        }

        .bottom-notice a {
            color: #4a85c5;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.2s;
        }

        .bottom-notice a:hover {
            color: #34689e;
            text-decoration: underline;
        }

        /* ========== 移动端适配 ========== */
        @media (max-width: 960px) {
            body {
                padding: 16px 10px 16px 10px;
                background:
                    radial-gradient(ellipse at 20% 8%, rgba(130, 175, 225, 0.16) 0%, transparent 50%),
                    radial-gradient(ellipse at 80% 60%, rgba(100, 155, 215, 0.11) 0%, transparent 48%),
                    radial-gradient(ellipse at 50% 85%, rgba(150, 195, 240, 0.13) 0%, transparent 50%),
                    linear-gradient(170deg, #e8f0f9 0%, #dde7f5 35%, #e6eef8 60%, #eef4fb 100%);
            }

            body::before {
                width: 220px;
                height: 220px;
                top: -60px;
                right: -40px;
            }

            body::after {
                width: 200px;
                height: 200px;
                bottom: -50px;
                left: -40px;
            }
			
			.container {
				width: 96%;
				max-width: 800px;
				display: flex;
				flex-direction: column;
				gap: 1.6rem;
				margin: 0 auto;
				position: relative;
				z-index: 1;
			}
		
            .card {
                padding: 10% 8% 15% 8%;
                border-radius: 20px;
                border: 1.2px solid rgba(255, 255, 255, 0.45);
                backdrop-filter: blur(14px);
                -webkit-backdrop-filter: blur(14px);
            }

            .card::before {
                border-radius: 20px 20px 0 0;
            }

            .card::after {
                width: 50px;
                height: 50px;
                top: 5%;
                right: 4%;
            }

            .header {
                text-align: left;
                padding: 14px 4px 6px 4px;
            }

            h1 {
                font-size: 1.45rem;
            }

            .two-cols {
                grid-template-columns: 1fr;
            }

            .extra-chip {
                padding: 0.5rem 0.7rem;
                font-size: 0.8rem;
                border-radius: 22px;
            }

            .result-price {
                font-size: 2rem;
            }

            .btn {
                font-size: 18px;
                padding: 16px;
                border-radius: 54px;
                box-shadow:
                    0 8px 0 #3a8022,
                    0 12px 22px rgba(88, 189, 56, 0.25),
                    0 3px 8px rgba(88, 189, 56, 0.14),
                    inset 0 1px 0 rgba(255, 255, 255, 0.4);
            }

            .btn:active {
                box-shadow:
                    0 2px 0 #3a8022,
                    0 4px 10px rgba(88, 189, 56, 0.16),
                    inset 0 2px 4px rgba(0, 0, 0, 0.16);
                transform: translateY(6px);
            }

            .bottom-notice {
                padding: 6% 8% 12% 8%;
                font-size: 0.82rem;
            }

            .result-box {
                padding: 1.2rem 1rem;
                border-radius: 14px;
            }
        }

        @media (max-width: 480px) {
            body {
                padding: 10px 6px 10px 6px;
            }

            .card {
                padding: 12% 7% 16% 7%;
                border-radius: 16px;
                backdrop-filter: blur(10px);
                -webkit-backdrop-filter: blur(10px);
            }

            h1 {
                font-size: 1.3rem;
                line-height: 1.6em;
            }

            .subtitle {
                font-size: 13px;
            }

            .btn {
                font-size: 16px;
                padding: 14px;
                border-radius: 48px;
                box-shadow:
                    0 7px 0 #3a8022,
                    0 10px 18px rgba(88, 189, 56, 0.22),
                    0 3px 6px rgba(88, 189, 56, 0.12),
                    inset 0 1px 0 rgba(255, 255, 255, 0.4);
            }

            .btn:active {
                box-shadow:
                    0 2px 0 #3a8022,
                    0 3px 8px rgba(88, 189, 56, 0.14),
                    inset 0 2px 4px rgba(0, 0, 0, 0.16);
                transform: translateY(5px);
            }

            .extra-chip {
                padding: 0.4rem 0.6rem;
                font-size: 0.75rem;
                border-radius: 20px;
                gap: 0.25rem;
            }

            .extra-chip .chip-icon {
                width: 0.9rem;
                height: 0.9rem;
                font-size: 0.55rem;
            }

            .result-price {
                font-size: 1.7rem;
            }

            select,
            input[type="text"] {
                padding: 0.7rem 0.9rem;
                font-size: 0.9rem;
            }
        }