/* ========== 主容器 ========== */
        .app-container {
            max-width: 1200px;
            width: 100%;
            background: #ffffff;
            border-radius: 6px;
            0 6px 14px rgba(37, 99, 235, 0.30);
            padding: 32px 16px 5px;
            transition: all 0.2s ease;
			margin-top:20px;
        }

        /* ========== 头部 ========== */
        .app-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px 24px;
            margin-bottom: 28px;
            padding-bottom: 20px;
            border-bottom: 2px solid #eef2f6;
        }

        .app-header .logo-area {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .app-header .logo-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(145deg, #2563eb, #1d4ed8);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #fff;
            box-shadow: 0 6px 14px rgba(37, 99, 235, 0.30);
        }

        .app-header h1 {
            font-size: 26px;
            font-weight: 700;
            letter-spacing: -0.3px;
            background: linear-gradient(135deg, #0b1e3a, #1e3a6f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .app-header .header-tag {
            font-size: 14px;
            color: #64748b;
            background: #f1f5f9;
            padding: 6px 16px;
            border-radius: 30px;
            font-weight: 500;
            letter-spacing: 0.2px;
            border: 1px solid #e2e8f0;
        }

        /* ========== Tab 导航 ========== */
        .tab-nav {
            display: flex;
            flex-wrap: wrap;
            margin-bottom: 32px;
            background: #f8fafc;
            padding: 6px;
            border-radius: 18px;
            border: 1px solid #eef2f6;
        }

        .tab-btn {
            flex: 1 0 auto;
            min-width: 96px;
            padding: 12px 18px;
            border: none;
            background: transparent;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 600;
            color: #64748b;
            cursor: pointer;
            transition: all 0.25s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            position: relative;
            letter-spacing: 0.2px;
        }

        .tab-btn .tab-icon {
            font-size: 18px;
            line-height: 1;
        }

        .tab-btn:hover {
            background: #eef2f6;
            color: #1e293b;
        }

        .tab-btn.active {
            background: #ffffff;
            color: #1d4ed8;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
            border: 1px solid rgba(37, 99, 235, 0.15);
        }

        .tab-btn.active .tab-icon {
            transform: scale(1.05);
        }

        /* ========== 内容面板 ========== */
        .tab-panel {
            display: none;
            animation: fadeUp 0.35s ease forwards;
        }

        .tab-panel.active {
            display: block;
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(12px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .panel-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 24px;
        }

        .panel-header .panel-icon {
            font-size: 28px;
        }

        .panel-header h2 {
            font-size: 22px;
            font-weight: 700;
            color: #0b1e3a;
            letter-spacing: -0.2px;
        }

        .panel-header .panel-count {
            margin-left: auto;
            font-size: 14px;
            color: #94a3b8;
            background: #f1f5f9;
            padding: 4px 14px;
            border-radius: 30px;
            font-weight: 500;
        }

        /* ========== 问答列表 ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #fafcff;
            border: 1px solid #eef2f6;
            border-radius: 16px;
            overflow: hidden;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .faq-item:hover {
            border-color: #d0d9e8;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
        }

        .faq-item.open {
            border-color: #b3c9f0;
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.06);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            cursor: pointer;
            user-select: none;
            transition: background 0.15s ease;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
            font-size: inherit;
            line-height: 1.4;
            color: #1e293b;
        }

        .faq-question:hover {
            background: #f2f6fd;
        }

        .faq-question .q-marker {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #eef4ff;
            color: #2563eb;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            transition: all 0.2s ease;
        }

        .faq-item.open .faq-question .q-marker {
            background: #2563eb;
            color: #fff;
        }

        .faq-question .q-text {
            flex: 1;
            font-weight: 600;
            font-size: 16px;
            color: #0b1e3a;
            transition: color 0.2s ease;
        }

        .faq-item.open .faq-question .q-text {
            color: #1d4ed8;
        }

        .faq-question .q-toggle {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: #f1f5f9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 300;
            color: #94a3b8;
            transition: all 0.3s ease;
            line-height: 1;
        }

        .faq-item.open .faq-question .q-toggle {
            background: #eef4ff;
            color: #2563eb;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s cubic-bezier(0.33, 1, 0.68, 1), padding 0.3s ease, opacity 0.3s ease;
            opacity: 0;
            padding: 0 22px;
            color: #475569;
            line-height: 1.7;
            font-size: 15px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            opacity: 1;
            padding: 0 22px 22px 22px;
        }

        .faq-answer p {
            margin: 0;
        }

        .faq-answer .answer-meta {
            display: inline-block;
            margin-top: 10px;
            font-size: 13px;
            color: #94a3b8;
            background: #f8fafc;
            padding: 2px 14px;
            border-radius: 30px;
            border: 1px solid #eef2f6;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 900px) {
            .app-container {
                padding: 24px 20px 3px;
                border-radius: 24px;
            }
            .app-header h1 {
                font-size: 22px;
            }
            .tab-btn {
                min-width: 72px;
                padding: 10px 14px;
                font-size: 14px;
            }
            .tab-btn .tab-icon {
                font-size: 16px;
            }
        }

        @media (max-width: 640px) {
            body {
                padding: 12px;
            }
            .app-container {
                padding: 16px 14px 20px;
                border-radius: 18px;
            }
            .app-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                margin-bottom: 18px;
                padding-bottom: 14px;
            }
            .app-header h1 {
                font-size: 20px;
            }
            .app-header .header-tag {
                font-size: 12px;
                padding: 4px 12px;
            }
            .tab-nav {
                gap: 4px;
                padding: 4px;
                border-radius: 14px;
                margin-bottom: 20px;
            }
            .tab-btn {
                min-width: 52px;
                padding: 8px 10px;
                font-size: 12px;
                border-radius: 10px;
                gap: 4px;
                flex: 1 1 0;
            }
            .tab-btn .tab-icon {
                font-size: 14px;
            }
            .tab-btn .tab-label {
                font-size: 11px;
            }
            .panel-header h2 {
                font-size: 18px;
            }
            .panel-header .panel-icon {
                font-size: 22px;
            }
            .faq-question {
                padding: 14px 16px;
                gap: 10px;
            }
            .faq-question .q-text {
                font-size: 14px;
            }
            .faq-question .q-marker {
                width: 24px;
                height: 24px;
                font-size: 11px;
            }
            .faq-question .q-toggle {
                width: 24px;
                height: 24px;
                font-size: 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px 16px;
            }
            .faq-answer {
                font-size: 14px;
                padding: 0 16px;
            }
            .faq-answer .answer-meta {
                font-size: 12px;
                padding: 2px 10px;
            }
        }

        @media (max-width: 420px) {
            .tab-btn {
                min-width: 40px;
                padding: 6px 8px;
                font-size: 11px;
            }
            .tab-btn .tab-icon {
                font-size: 12px;
            }
            .tab-btn .tab-label {
                font-size: 10px;
            }
            .app-header h1 {
                font-size: 17px;
            }
            .app-header .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 18px;
            }
        }

        /* ========== 滚动条美化 ========== */
        .faq-answer::-webkit-scrollbar {
            width: 4px;
        }
        .faq-answer::-webkit-scrollbar-track {
            background: transparent;
        }
        .faq-answer::-webkit-scrollbar-thumb {
            background: #d0d9e8;
            border-radius: 10px;
        }