    <style>
        /* 基础重置 (Tailwind Preflight 精简版) */
        /* ================= 以下为 admin.html 的 Tailwind 样式 ================= */
        *, ::before, ::after { box-sizing: border-box; border-width: 0; border-style: solid; border-color: #e5e7eb; margin: 0; padding: 0; }
        html { line-height: 1.5; -webkit-text-size-adjust: 100%; font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
        body { margin: 0; line-height: inherit; }
        table { text-indent: 0; border-color: inherit; border-collapse: collapse; }
        button { cursor: pointer; background: transparent; font-family: inherit; font-size: 100%; line-height: inherit; text-transform: none; -webkit-appearance: button; }
        svg { display: block; vertical-align: middle; }

        /* 颜色变量 */
        :root {
            --gray-50: #f9fafb; --gray-100: #f3f4f6; --gray-200: #e5e7eb; --gray-400: #9ca3af; 
            --gray-500: #6b7280; --gray-600: #4b5563; --gray-800: #1f2937;
            --blue-50: #eff6ff; --blue-100: #dbeafe; --blue-200: #bfdbfe; 
            --blue-600: #2563eb; --blue-700: #1d4ed8; --blue-800: #1e40af;
            --red-500: #ef4444; --green-500: #22c55e; --green-600: #16a34a; --white: #ffffff;
        }

        /* 动画 */
        .loading-pulse { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
        @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .5; } }

        /* 提取的 Tailwind 样式集 */
        .fixed { position: fixed; }
        .top-10 { top: 2.5rem; }
        .right-10 { right: 2.5rem; }
        .z-50 { z-index: 50; }
        .mx-auto { margin-left: auto; margin-right: auto; }
        .mb-6 { margin-bottom: 1.5rem; }
        .mt-1 { margin-top: 0.25rem; }
        .flex { display: flex; }
        .hidden { display: none !important; }
        .w-full { width: 100%; }
        .w-4 { width: 1rem; }
        .max-w-5xl { max-width: 64rem; }
        .h-4 { height: 1rem; }
        .items-center { align-items: center; }
        .justify-between { justify-content: space-between; }
        .gap-2 { gap: 0.5rem; }
        .gap-4 { gap: 1rem; }
        
        /* 间距处理 */
        .space-x-2 > :not([hidden]) ~ :not([hidden]) { margin-left: 0.5rem; }
        .divide-y > :not([hidden]) ~ :not([hidden]) { border-top-width: 1px; border-color: var(--gray-100); }
        
        /* 内边距 */
        .p-4 { padding: 1rem; }
        .p-5 { padding: 1.25rem; }
        .p-6 { padding: 1.5rem; }
        .p-8 { padding: 2rem; }
        .px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
        .px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
        .px-4 { padding-left: 1rem; padding-right: 1rem; }
        .px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
        .py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
        .py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
        .py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }

        /* 字体排印 */
        .text-center { text-align: center; }
        .text-left { text-align: left; }
        .text-right { text-align: right; }
        .font-sans { font-family: ui-sans-serif, system-ui, sans-serif; }
        .font-mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }
        .text-xs { font-size: 0.75rem; line-height: 1rem; }
        .text-sm { font-size: 0.875rem; line-height: 1.25rem; }
        .text-lg { font-size: 1.125rem; line-height: 1.75rem; }
        .text-2xl { font-size: 1.5rem; line-height: 2rem; }
        .font-semibold { font-weight: 600; }
        .font-bold { font-weight: 700; }
        .uppercase { text-transform: uppercase; }
        .tracking-wider { letter-spacing: 0.05em; }
        .tracking-widest { letter-spacing: 0.1em; }
        .underline { text-decoration: underline; }

        /* 文本颜色 */
        .text-white { color: var(--white); }
        .text-gray-400 { color: var(--gray-400); }
        .text-gray-500 { color: var(--gray-500); }
        .text-gray-600 { color: var(--gray-600); }
        .text-gray-800 { color: var(--gray-800); }
        .text-blue-600 { color: var(--blue-600); }
        .text-blue-800 { color: var(--blue-800); }
        .text-red-500 { color: var(--red-500); }

        /* 背景颜色 */
        .bg-white { background-color: var(--white); }
        .bg-gray-50 { background-color: var(--gray-50); }
        .bg-gray-100 { background-color: var(--gray-100); }
        .bg-blue-100 { background-color: var(--blue-100); }
        .bg-blue-600 { background-color: var(--blue-600); }
        .bg-red-500 { background-color: var(--red-500); }
        .bg-green-500 { background-color: var(--green-500); }

        /* 边框与阴影 */
        .overflow-hidden { overflow: hidden; }
        .rounded { border-radius: 0.25rem; }
        .rounded-lg { border-radius: 0.5rem; }
        .border { border-width: 1px; }
        .border-b { border-bottom-width: 1px; }
        .border-blue-200 { border-color: var(--blue-200); }
        .shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
        .shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }

        /* 交互状态 (Hover) */
        .transition { transition-property: color, background-color, border-color, text-decoration-color, fill, stroke, opacity, box-shadow, transform, filter, backdrop-filter; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
        .transition-opacity { transition-property: opacity; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
        .hover\:bg-blue-50:hover { background-color: var(--blue-50); }
        .hover\:bg-blue-700:hover { background-color: var(--blue-700); }
        .hover\:bg-green-600:hover { background-color: var(--green-600); }
        .hover\:text-red-500:hover { color: var(--red-500); }
    
        /* ================= 以下为 index.html 补充的 Tailwind 样式 ================= */

        /* 1. 补充颜色变量 */
        :root {
            --indigo-50: #eef2ff; --indigo-100: #e0e7ff; --indigo-200: #c7d2fe; 
            --indigo-500: #6366f1; --indigo-600: #4f46e5; --indigo-700: #4338ca;
            --purple-600: #9333ea;
            --gray-300: #d1d5db; --gray-700: #374151;
            --green-400: #4ade80;
            --blue-500: #3b82f6;
        }

        /* 2. 布局与尺寸 */
        .max-w-6xl { max-width: 72rem; }
        .max-w-md { max-width: 28rem; }
        .max-w-\[240px\] { max-width: 240px; }
        .w-\[200px\] { width: 200px; }
        .w-32 { width: 8rem; }
        .h-32 { height: 8rem; }
        .h-24 { height: 6rem; }
        .relative { position: relative; }
        .overflow-x-auto { overflow-x: auto; }
        .shrink-0 { flex-shrink: 0; }
        .flex-1 { flex: 1 1 0%; }
        .top-20 { top: 5rem; }
        .right-5 { right: 1.25rem; }

        /* 3. Flex & Grid */
        .grid { display: grid; }
        .grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
        .flex-col { flex-direction: column; }
        .justify-center { justify-content: center; }

        /* 4. 间距 (Margin & Padding) */
        .mt-2 { margin-top: 0.5rem; }
        .mt-4 { margin-top: 1rem; }
        .mt-8 { margin-top: 2rem; }
        .mt-10 { margin-top: 2.5rem; }
        .mb-1 { margin-bottom: 0.25rem; }
        .mb-2 { margin-bottom: 0.5rem; }
        .mb-3 { margin-bottom: 0.75rem; }
        .mb-4 { margin-bottom: 1rem; }
        .ml-4 { margin-left: 1rem; }
        .pt-4 { padding-top: 1rem; }
        .pb-4 { padding-bottom: 1rem; }
        .py-8 { padding-top: 2rem; padding-bottom: 2rem; }
        .px-1 { padding-left: 0.25rem; padding-right: 0.25rem; }
        .p-1 { padding: 0.25rem; }
        .p-3 { padding: 0.75rem; }
        .gap-3 { gap: 0.75rem; }
        .gap-6 { gap: 1.5rem; }
        .space-y-6 > :not([hidden]) ~ :not([hidden]) { margin-top: 1.5rem; }

        /* 5. 字体排印 */
        .text-xl { font-size: 1.25rem; line-height: 1.75rem; }
        .text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
        .font-medium { font-weight: 500; }
        .font-normal { font-weight: 400; }
        .font-black { font-weight: 900; }
        .leading-relaxed { line-height: 1.625; }

        /* 6. 颜色与背景 */
        .bg-indigo-50 { background-color: var(--indigo-50); }
        .bg-indigo-600 { background-color: var(--indigo-600); }
        .bg-gray-200 { background-color: var(--gray-200); }
        .bg-gray-800 { background-color: var(--gray-800); }
        .bg-transparent { background-color: transparent; }
        .bg-white\/60 { background-color: rgba(255, 255, 255, 0.6); }

        .text-indigo-100 { color: var(--indigo-100); }
        .text-indigo-200 { color: var(--indigo-200); }
        .text-indigo-600 { color: var(--indigo-600); }
        .text-gray-300 { color: var(--gray-300); }
        .text-gray-700 { color: var(--gray-700); }
        .text-green-400 { color: var(--green-400); }
        .text-blue-500 { color: var(--blue-500); }

        /* 7. 渐变背景 (对应 bg-gradient-to-br) */
        .bg-gradient-to-br { background-image: linear-gradient(to bottom right, var(--tw-gradient-stops)); }
        .from-indigo-500 { --tw-gradient-from: var(--indigo-500); --tw-gradient-stops: var(--tw-gradient-from), rgba(99, 102, 241, 0); }
        .to-purple-600 { --tw-gradient-to: var(--purple-600); --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to); }

        /* 8. 边框、圆角与阴影 */
        .border-2 { border-width: 2px; }
        .border-t { border-top-width: 1px; }
        .border-l { border-left-width: 1px; }
        .border-gray-100 { border-color: var(--gray-100); }
        .border-gray-200 { border-color: var(--gray-200); }
        .border-blue-100 { border-color: var(--blue-100); }
        .rounded-md { border-radius: 0.375rem; }
        .rounded-xl { border-radius: 0.75rem; }
        .shadow-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }

        /* 9. 交互与其他效果 */
        .cursor-pointer { cursor: pointer; }
        .outline-none { outline: 2px solid transparent; outline-offset: 2px; }
        .object-cover { object-fit: cover; }
        .object-contain { object-fit: contain; }

        /* 10. Hover 状态 */
        .hover\:text-white:hover { color: var(--white); }
        .hover\:bg-indigo-700:hover { background-color: var(--indigo-700); }
        .hover\:bg-gray-200:hover { background-color: var(--gray-200); }
        .hover\:bg-gray-300:hover { background-color: var(--gray-300); }
        .hover\:border-indigo-500:hover { border-color: var(--indigo-500); }
        .hover\:shadow-md:hover { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }
        .hover\:shadow:hover { box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06); }

        /* 11. Focus 状态 (输入框的高亮光圈) */
        .focus\:ring-2:focus { outline: none; box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--tw-ring-color); }
        .focus\:ring-indigo-500:focus { --tw-ring-color: var(--indigo-500); }
        .focus\:ring-blue-500:focus { --tw-ring-color: var(--blue-500); }

        /* 12. 响应式布局 (小屏幕手机以上) */
        @media (min-width: 640px) {
            .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
            .sm\:flex-row { flex-direction: row; }
            .sm\:w-\[220px\] { width: 220px; }
        }

        /* 13. 响应式布局 (平板电脑以上) */
        @media (min-width: 768px) {
            .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
            .md\:col-span-1 { grid-column: span 1 / span 1; }
            .md\:col-span-2 { grid-column: span 2 / span 2; }
            .md\:flex-row { flex-direction: row; }
        }    
    
        /* ================= 以下为 view_order.html 补充的 Tailwind 样式 ================= */

        /* 1. 颜色与背景补充 */
        .bg-blue-50 { background-color: var(--blue-50); }
        .bg-blue-500 { background-color: var(--blue-500); }
        .bg-green-50 { background-color: #f0fdf4; }
        .text-blue-700 { color: var(--blue-700); }
        .text-green-700 { color: #15803d; }
        .text-green-800 { color: #166534; }
        .border-blue-500 { border-color: var(--blue-500); }
        .border-green-500 { border-color: var(--green-500); }
        .border-gray-300 { border-color: var(--gray-300); }

        /* 2. 尺寸补充 (Sizing) */
        .w-5 { width: 1.25rem; }
        .h-5 { height: 1.25rem; }
        .w-10 { width: 2.5rem; }
        .h-10 { height: 2.5rem; }
        .max-w-xs { max-width: 20rem; }
        .max-w-sm { max-width: 24rem; }

        /* 3. 间距补充 (Margin & Padding) */
        .mx-1 { margin-left: 0.25rem; margin-right: 0.25rem; }
        .mx-2 { margin-left: 0.5rem; margin-right: 0.5rem; }
        .my-8 { margin-top: 2rem; margin-bottom: 2rem; }
        .mb-8 { margin-bottom: 2rem; }
        .mb-10 { margin-bottom: 2.5rem; }
        .mb-12 { margin-bottom: 3rem; }
        .pb-4 { padding-bottom: 1rem; }
        .pb-20 { padding-bottom: 5rem; }
        .px-8 { padding-left: 2rem; padding-right: 2rem; }

        /* 4. 字体排印补充 */
        .text-3xl { font-size: 1.875rem; line-height: 2.25rem; }

        /* 5. 布局补充 */
        .inline-block { display: inline-block; }
        .items-start { align-items: flex-start; }

        /* 6. 边框与圆角补充 */
        .border-l-4 { border-left-width: 4px; }
        .border-dashed { border-style: dashed; }
        .rounded-full { border-radius: 9999px; }
        .rounded-r { border-top-right-radius: 0.25rem; border-bottom-right-radius: 0.25rem; }

        /* 7. 动画与位移补充 (用于底部返回按钮的悬停弹跳效果) */
        .transform { transform: translate(0); }
        .hover\:-translate-y-1:hover { transform: translateY(-0.25rem); }

        /* 8. 响应式布局补充 (媒体查询) */
        @media (min-width: 640px) {
            /* 平板/大屏手机：支付宝图片一排3张/4张的网格 */
            .sm\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
            .sm\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
        }

        @media (min-width: 768px) {
            /* 电脑端：教程模块更宽的内边距 */
            .md\:p-8 { padding: 2rem; }
        }

    </style>