:root {
            --primary-color: #8B4513;
            --primary-light: #A0522D;
            --secondary-color: #D2B48C;
            --accent-color: #CD853F;
            --background-light: #FDF5E6;
            --text-dark: #5D4037;
            --text-light: #8D6E63;
            --white: #FFFFFF;
            --link-active: #1E90FF;
            --link-visited: #4169E1;
        }

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

        body {
            font-family: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--background-light);
            border-top: 5px solid var(--primary-color);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }

        header {
            text-align: center;
            padding: 40px 20px;
            background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
            color: var(--white);
            margin-bottom: 30px;
        }

        header h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        }

        header p {
            font-size: 1.1rem;
            opacity: 0.95;
        }

        /* 搜索区域样式 */
        .search-section {
            background: var(--white);
            padding: 20px 30px;
            margin-bottom: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .search-wrapper {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 15px;
            justify-content: center;
        }

        .search-input-wrap {
            flex: 1;
            min-width: 250px;
        }

        .search-input-wrap input {
            width: 100%;
            padding: 12px 18px;
            font-size: 1rem;
            border: 2px solid var(--secondary-color);
            border-radius: 8px;
            outline: none;
            transition: border-color 0.3s;
            background: var(--background-light);
            color: var(--text-dark);
        }

        .search-input-wrap input:focus {
            border-color: var(--accent-color);
        }

        .search-buttons {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            align-items: center;
        }

        .search-buttons .btn-search {
            padding: 12px 30px;
            font-size: 1rem;
            background: var(--primary-color);
            color: var(--white);
            border: none;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.3s;
        }

        .search-buttons .btn-search:hover {
            background: var(--primary-light);
        }

        .search-buttons .btn-reset {
            padding: 12px 30px;
            font-size: 1rem;
            background: var(--secondary-color);
            color: var(--text-dark);
            border: none;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.3s;
        }

        .search-buttons .btn-reset:hover {
            background: var(--accent-color);
        }

        .result-count {
            display: flex;
            align-items: center;
            font-size: 0.95rem;
            color: var(--text-light);
            padding: 0 10px;
        }

        .result-count strong {
            color: var(--primary-color);
            margin: 0 4px;
        }

        .intro-section {
            background: var(--white);
            padding: 30px;
            margin-bottom: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .intro-section h2 {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin-bottom: 20px;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 10px;
        }

        .intro-section p {
            margin-bottom: 15px;
            text-align: justify;
            text-indent: 2em;
        }

        .content-section {
            background: var(--white);
            padding: 30px;
            margin-bottom: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }

        .content-section h2 {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin-bottom: 20px;
            border-bottom: 3px solid var(--accent-color);
            padding-bottom: 10px;
        }

        .sutra-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 15px;
            margin-top: 20px;
        }

        .sutra-item {
            padding: 12px 15px;
            background: var(--background-light);
            border-radius: 6px;
            border-left: 4px solid var(--accent-color);
            transition: all 0.3s ease;
        }

        .sutra-item:hover {
            background: var(--secondary-color);
            transform: translateX(5px);
            box-shadow: 0 2px 6px rgba(0,0,0,0.15);
        }

        .sutra-item a {
            color: var(--primary-color);
            text-decoration: none;
            font-size: 0.95rem;
            display: block;
            word-break: break-word;
        }

        .sutra-item a:hover {
            color: var(--link-active);
        }

        .sutra-item a:visited {
            color: var(--link-visited);
        }

        .sutra-item.hidden {
            display: none;
        }

        footer {
            background: var(--primary-color);
            color: var(--white);
            padding: 30px 20px;
            text-align: center;
            margin-top: 40px;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .footer-links a {
            color: var(--white);
            text-decoration: none;
            font-size: 1rem;
            transition: color 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--secondary-color);
        }

        .footer-copyright {
            font-size: 0.9rem;
            opacity: 0.8;
            margin-top: 15px;
        }

        /* 移动端适配 */
        @media (max-width: 768px) {
            header h1 {
                font-size: 1.8rem;
            }

            header p {
                font-size: 1rem;
            }

            .container {
                padding: 15px;
            }

            .intro-section,
            .content-section,
            .search-section {
                padding: 20px;
            }

            .intro-section h2,
            .content-section h2 {
                font-size: 1.5rem;
            }

            .sutra-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .sutra-item {
                padding: 10px 12px;
            }

            .sutra-item a {
                font-size: 0.9rem;
            }

            .footer-links {
                flex-direction: column;
                gap: 15px;
            }

            .search-wrapper {
                flex-direction: column;
            }

            .search-input-wrap {
                min-width: 100%;
            }

            .search-buttons {
                width: 100%;
                justify-content: center;
            }

            .result-count {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 480px) {
            body {
                font-size: 0.9rem;
            }

            header {
                padding: 30px 15px;
            }

            header h1 {
                font-size: 1.5rem;
            }

            .intro-section p {
                text-indent: 0;
            }

            .search-buttons .btn-search,
            .search-buttons .btn-reset {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
        }