* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
            color: #333;
            line-height: 1.6;
            padding-bottom: 40px;
            min-height: 100vh;
        }

        /* 顶部导航容器 */
        .breadcrumb-container {
            width: 90%;
            max-width: 1400px;
            margin: 25px auto 15px;
            padding: 0 15px;
        }

        /* 面包屑导航 */
        .breadcrumb {
            background: linear-gradient(to right, #6a11cb 0%, #2575fc 100%);
            border-radius: 50px;
            padding: 12px 30px;
            box-shadow: 0 4px 12px rgba(106, 17, 203, 0.2);
        }

        .breadcrumb ul {
            display: flex;
            flex-wrap: wrap;
            padding: 0;
            margin: 0;
            list-style-type: none;
        }

        .breadcrumb li {
            margin-right: 1.2rem;
            position: relative;
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
        }

        .breadcrumb li:not(:first-child)::before {
            content: ">";
            position: absolute;
            left: -15px;
            color: rgba(255, 255, 255, 0.7);
        }

        .breadcrumb li:first-child::before {
            content: "";
            margin: 0;
        }

        .breadcrumb li a {
            color: rgba(255, 255, 255, 0.9);
            padding: 4px 8px;
            border-radius: 4px;
        }

        .breadcrumb li a:hover {
            color: white;
            background: rgba(255, 255, 255, 0.15);
        }

        .breadcrumb .active {
            color: white;
            font-weight: 600;
        }

        /* 主要内容容器 */
        .mmm {
            width: 90%;
            max-width: 1400px;
            display: flex;
            justify-content: space-between;
            margin: 0 auto;
            gap: 30px;
        }

        /* 内容区域 */
        .book-details-page {
            flex: 1;
            background: white;
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .book-details-page:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
        }

        .content-wrapper {
            padding: 20px 0;
            border-bottom: 1px solid #eee;
        }

        h2 {
            font-size: 28px;
            color: #2c3e50;
            margin-bottom: 15px;
            line-height: 1.4;
            font-weight: 700;
        }

        .book-title {
            position: relative;
            padding-left: 20px;
        }

        .book-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 5px;
            background: linear-gradient(to bottom, #6a11cb, #2575fc);
            border-radius: 3px;
        }

        .ppt-container {
            position: relative;
            padding: 25px 0;
            margin-top: 20px;
        }

        /* 页脚区域 */
        .social-iconss {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            margin-top: 10px;
        }

        .info-bar {
            display: flex;
            align-items: center;
            gap: 15px;
            font-size: 15px;
            color: #7f8c8d;
        }

        .info-bar span {
            display: flex;
            align-items: center;
        }

        .author-name {
            font-weight: 600;
            color: #3498db;
        }

        .read-count {
            background: #f8f9fa;
            padding: 4px 10px;
            border-radius: 30px;
            font-size: 14px;
        }

        .icon-containers {
            position: relative;
            width: 50px;
            height: 50px;
            background: #f8f9fa;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
        }

        .icon-containers:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
        }

        .icon-containers img {
            width: 60%;
            height: 60%;
            object-fit: contain;
        }

        #wechatQrCodeContainer,
        #qqQrCodeContainer {
            position: absolute;
            bottom: 70px;
            left: 50%;
            transform: translateX(-50%);
            padding: 12px;
            background: white;
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            z-index: 100;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .icon-containers:hover #wechatQrCodeContainer,
        .icon-containers:hover #qqQrCodeContainer {
            opacity: 1;
            visibility: visible;
            bottom: 65px;
        }

        /* 侧边栏样式 */
        .account-summary {
            width: 360px;
            background: white;
            border-radius: 16px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            position: sticky;
            top: 30px;
            height: fit-content;
        }

        .avatar-container {
            text-align: center;
            margin-bottom: 25px;
        }

        .avatar-circle {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            object-fit: cover;
            border: 4px solid white;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }

        .account-info-container {
            margin-bottom: 20px;
        }

        .username-with-btn {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }

        .username {
            font-size: 22px;
            font-weight: 700;
            color: #2c3e50;
        }

        .username a:hover {
            color: #2575fc;
        }

        .view-profile-btn {
            background: linear-gradient(to right, #6a11cb 0%, #2575fc 100%);
            color: white;
            border: none;
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 10px rgba(37, 117, 252, 0.3);
        }

        .view-profile-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(37, 117, 252, 0.4);
        }

        .bio {
            color: #7f8c8d;
            font-size: 15px;
            line-height: 1.5;
            margin-bottom: 20px;
        }

        .account-stats {
            display: flex;
            justify-content: space-around;
            background: #f8f9fa;
            border-radius: 12px;
            padding: 18px 10px;
            margin: 25px 0;
        }

        .stat-item {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .stat-number {
            font-size: 22px;
            font-weight: 700;
            color: #2c3e50;
        }

        .stat-label {
            font-size: 14px;
            color: #7f8c8d;
            margin-top: 5px;
        }

        .action-buttons {
            display: flex;
            gap: 15px;
            margin-bottom: 25px;
        }

        .follow-button,
        .message-button {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px;
            border-radius: 10px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
        }

        .follow-button {
            background: linear-gradient(to right, #00b09b 0%, #96c93d 100%);
            color: white;
            box-shadow: 0 4px 12px rgba(0, 176, 155, 0.25);
        }

        .message-button {
            background: linear-gradient(to right, #ff8a00 0%, #ff2070 100%);
            color: white;
            box-shadow: 0 4px 12px rgba(255, 138, 0, 0.25);
        }

        .follow-button:hover,
        .message-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
        }

        .divider {
            height: 1px;
            background: linear-gradient(to right, transparent 0%, #eee 50%, transparent 100%);
            margin: 25px 0;
        }

        .left-aligned-content {
            margin-top: 15px;
        }

        .recent-posts-title {
            font-size: 18px;
            font-weight: 700;
            color: #2c3e50;
            margin-bottom: 15px;
            position: relative;
            padding-left: 15px;
        }

        .recent-posts-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 5px;
            height: 18px;
            width: 5px;
            background: linear-gradient(to bottom, #6a11cb, #2575fc);
            border-radius: 3px;
        }

        .recent-posts-list {
            list-style-type: none;
        }

        .recent-posts-list li {
            padding: 12px 15px;
            margin-bottom: 8px;
            border-radius: 8px;
            transition: all 0.3s ease;
            position: relative;
            padding-left: 25px;
        }

        .recent-posts-list li::before {
            content: "•";
            color: #2575fc;
            font-weight: bold;
            position: absolute;
            left: 10px;
            top: 12px;
        }

        .recent-posts-list li:hover {
            background: #f0f7ff;
            transform: translateX(5px);
        }

        .recent-posts-list li a {
            color: #2c3e50;
            display: block;
        }

        .recent-posts-list li a:hover {
            color: #2575fc;
        }

        .image-gallery {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
            margin-top: 20px;
        }

        .image-gallery img {
            width: 100%;
            height: 140px;
            border-radius: 10px;
            object-fit: cover;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
        }

        .image-gallery img:hover {
            transform: scale(1.03);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .mmm {
                flex-direction: column;
            }

            .account-summary {
                width: 100%;
                margin-top: 30px;
            }
        }

        @media (max-width: 768px) {
            .breadcrumb-container {
                width: 95%;
            }

            .mmm {
                width: 95%;
            }

            .book-details-page {
                padding: 20px;
            }

            .social-iconss {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }

            .info-bar {
                flex-wrap: wrap;
            }

            .image-gallery {
                grid-template-columns: 1fr;
            }
        }