/* 顶部导航统一排版：不裁剪下拉菜单 */
header nav {
    overflow: visible !important;
}
header nav ul {
    flex-wrap: nowrap !important;
    overflow: visible !important;
    gap: 12px !important;
}
/* 汉堡菜单按钮 - 仅手机端显示 */
.hamburger-btn {
    display: none;
}
@media (max-width: 768px) {
    .header-content {
        flex-wrap: nowrap !important;
        justify-content: space-between;
    }
    /* 隐藏横向滚动nav，用汉堡菜单替代 */
    header nav {
        display: none !important;
    }
    .hamburger-btn {
        display: flex !important;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        width: 40px;
        height: 40px;
        background: rgba(255,255,255,0.2);
        border-radius: 8px;
        cursor: pointer;
        flex-shrink: 0;
        gap: 5px;
    }
    .hamburger-btn span {
        display: block;
        width: 20px;
        height: 2px;
        background: #fff;
        border-radius: 1px;
        transition: all 0.3s;
    }
    .hamburger-btn.open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .hamburger-btn.open span:nth-child(2) {
        opacity: 0;
    }
    .hamburger-btn.open span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    .logo img[alt="唤醒力"] {
        height: 32px !important;
    }
    .logo img[alt="唤醒力文字"] {
        height: 24px !important;
    }
    .pub-dropdown-menu {
        position: fixed !important;
        top: 60px !important;
        left: 10px !important;
        transform: none !important;
        width: 200px !important;
    }
    .article-card img { width: 50px !important; height: 50px !important; object-fit: cover !important; border-radius: 6px !important; flex-shrink: 0 !important; margin-left: 8px !important; }
    .article-card h4 { font-size: 13px !important; line-height: 1.3 !important; }
    .article-card p { font-size: 11px !important; line-height: 1.2 !important; }
    .article-card .article-meta { font-size: 10px !important; }
}

/* 手机端全屏菜单面板 */
.mobile-menu-panel {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    z-index: 10001;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}
.mobile-menu-panel.open {
    display: block;
}
.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: linear-gradient(135deg, #ff8c42 0%, #ff6b35 100%);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 10;
}
.mobile-menu-header h3 {
    font-size: 18px;
    font-weight: 600;
}
.mobile-menu-close {
    font-size: 28px;
    cursor: pointer;
    line-height: 1;
    padding: 0 5px;
}
.mobile-menu-body {
    padding: 10px 0;
}
.mobile-menu-item {
    border-bottom: 1px solid #f0f0f0;
}
.mobile-menu-item > a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    font-size: 16px;
    color: #333;
    text-decoration: none;
    cursor: pointer;
}
.mobile-menu-item > a:active {
    background: #fff5ee;
}
.mobile-menu-item .arrow {
    font-size: 12px;
    color: #999;
    transition: transform 0.2s;
}
.mobile-menu-item.expanded .arrow {
    transform: rotate(90deg);
}
.mobile-submenu {
    display: none;
    background: #fff5ee;
    padding: 5px 0;
}
.mobile-submenu.open {
    display: block;
}
.mobile-submenu a {
    display: block;
    padding: 12px 40px;
    font-size: 14px;
    color: #666;
    text-decoration: none;
    border-left: 3px solid transparent;
}
.mobile-submenu a:active {
    background: #ffe4d4;
    border-left-color: #ff8c42;
}
/* 三级菜单（精卫刷题子菜单） */
.mobile-sub-submenu {
    display: none;
    background: #f5f0ff;
    padding: 5px 0;
}
.mobile-sub-submenu.open {
    display: block;
}
.mobile-sub-submenu a {
    padding: 12px 60px;
    font-size: 13px;
    color: #666;
    border-left: 3px solid transparent;
}
.mobile-sub-submenu a:active {
    background: #e9e0ff;
    border-left-color: #7c3aed;
}

/* 精卫刷题子菜单 - 平铺展开 */
.quiz-dropdown { position: relative; }
.quiz-submenu {
    display: none;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px;
    padding: 8px 16px 8px 40px;
    background: #fff5ee;
    border-bottom: 1px solid #ffe0c0;
    overflow-x: auto;
    scrollbar-width: none;
    max-width: 100%;
    box-sizing: border-box;
}
.quiz-submenu::-webkit-scrollbar { display: none; }
.quiz-submenu.open { display: flex; }
.quiz-submenu a {
    white-space: nowrap;
    padding: 8px 14px;
    color: #666;
    font-size: 14px;
    text-decoration: none;
    border-radius: 8px;
    transition: all .2s;
    cursor: pointer;
    flex-shrink: 0;
}
.quiz-submenu a:hover, .quiz-submenu a.active {
    background: #ff8c42;
    color: #fff;
}
@media (max-width: 768px) {
    .quiz-submenu {
        gap: 4px;
        padding: 6px 10px 6px 32px;
    }
    .quiz-submenu a {
        padding: 6px 10px;
        font-size: 12px;
    }
}

/* 公益版下拉菜单 */
.pub-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    padding: 8px 0;
    min-width: 140px;
    display: none;
    z-index: 1000;
}
.pub-dropdown-menu.open { display: block; }
.pub-dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: #333 !important;
    font-size: 14px;
    text-decoration: none;
    white-space: nowrap;
    transition: background 0.2s;
}
.pub-dropdown-menu a:hover {
    background: #fff5ee;
    color: #ff8c42 !important;
}
@media (max-width: 768px) {
    .pub-dropdown-menu { min-width: 110px; }
    .pub-dropdown-menu a { padding: 8px 14px; font-size: 13px; }
}
header nav a {
    white-space: nowrap;
    font-size: 13px;
    letter-spacing: 0;
}
.logo img[alt="唤醒力"] {
    height: 40px !important;
    margin: 0 4px;
    display: block;
}
.logo img[alt="唤醒力文字"] {
    height: 30px !important;
    margin: 0;
    display: block;
}
.logo-text-wrap {
    position: relative;
    display: inline-block;
    vertical-align: middle;
}
.logo-reg {
    position: absolute;
    top: 4px;
    right: -10px;
    color: #fff;
    font-size: 10px;
    line-height: 1;
    pointer-events: none;
}
.nav-user-area {
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 4px;
    align-items: center;
    flex-shrink: 0;
}
.nav-user-area a, .nav-user-area button, .nav-user-area span {
    font-size: 12px !important;
    white-space: nowrap;
}
.nav-points-mini {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.95);
    white-space: nowrap;
}
.header-content {
    gap: 8px;
}
@media (min-width: 768px) {
    header nav a {
        font-size: 15px;
        letter-spacing: 1px;
    }
    header nav ul {
        gap: 20px !important;
    }
    .logo img[alt="唤醒力"] {
        height: 48px !important;
    }
    .logo img[alt="唤醒力文字"] {
        height: 36px !important;
    }
    .nav-user-area a, .nav-user-area button, .nav-user-area span {
        font-size: 13px !important;
    }
}

/* ========== 唤醒力网站共享样式 ========== */

/* 导航栏下拉菜单 */
nav .dropdown {
    position: relative;
}
nav .dropdown > a {
    cursor: pointer;
}
nav .dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-radius: 8px;
    padding: 8px 0;
    min-width: 160px;
    z-index: 1000;
    list-style: none;
}
nav .dropdown:hover .dropdown-menu,
nav .dropdown.active .dropdown-menu {
    display: block;
}
nav .dropdown-menu li a {
    display: block;
    padding: 8px 20px;
    color: #333;
    font-size: 14px;
    white-space: nowrap;
}
nav .dropdown-menu li a:hover {
    background: #fff5ee;
    color: #ff6b35;
    opacity: 1;
}

/* 用户区域 */
.nav-user-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* 公益/会员模式切换按钮 */
.mode-toggle {
    display: inline-flex;
    background: rgba(255,255,255,0.2);
    border-radius: 20px;
    padding: 2px;
    gap: 0;
    flex-shrink: 0;
}
.mode-btn {
    padding: 5px 14px;
    border: none;
    background: transparent;
    color: rgba(255,255,255,0.7);
    font-size: 12px;
    border-radius: 18px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    font-weight: 500;
}
.mode-btn.active {
    background: #fff;
    color: #ff6b35;
    font-weight: 600;
}
.mode-btn:hover:not(.active) {
    color: #fff;
}
@media (min-width: 768px) {
    .mode-btn {
        padding: 6px 16px;
        font-size: 13px;
    }
}
.nav-points {
    background: rgba(255,255,255,0.2);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 14px;
    color: white;
    white-space: nowrap;
    overflow: visible;
}
.nav-points .points-num {
    font-weight: bold;
    color: #ffd700;
}
.nav-login-btn {
    background: white;
    color: #ff6b35;
    padding: 6px 18px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}
.nav-login-btn:hover {
    background: #fff5ee;
    transform: translateY(-1px);
}
.nav-user-name {
    color: white;
    font-size: 14px;
}
.nav-logout-btn {
    color: rgba(255,255,255,0.8);
    font-size: 13px;
    text-decoration: none;
    cursor: pointer;
}
.nav-logout-btn:hover {
    color: white;
}

/* Toast 提示 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #333;
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    z-index: 9999;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    animation: fadeInRight 0.3s ease;
}
.toast.success { background: #28a745; }
.toast.error { background: #dc3545; }
.toast.warning { background: #ffc107; color: #333; }
@keyframes fadeInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* 版块入口页面 */
.section-portal {
    min-height: 100vh;
    background: #fafafa;
}
.section-header {
    background: linear-gradient(135deg, #ff8c42 0%, #ff6b35 100%);
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(255, 107, 53, 0.3);
}
.section-header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}
.section-banner {
    background: linear-gradient(135deg, #fff5ee 0%, #ffe4d4 100%);
    padding: 40px 20px;
    text-align: center;
}
.section-banner h2 {
    font-size: 32px;
    color: #e85d04;
    margin-bottom: 10px;
}
.section-banner p {
    font-size: 16px;
    color: #666;
}
.section-iframe-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}
.section-iframe {
    width: 100%;
    height: 75vh;
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    background: white;
}
.section-cards {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}
.section-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.05);
    text-decoration: none;
    color: #333;
    transition: transform 0.3s;
}
.section-card:hover {
    transform: translateY(-3px);
}
.section-card .icon {
    font-size: 36px;
    margin-bottom: 12px;
}
.section-card h4 {
    font-size: 18px;
    color: #e85d04;
    margin-bottom: 8px;
}
.section-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 登录注册页面 */
.auth-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #ff8c42 0%, #ff6b35 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}
.auth-container {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    max-width: 420px;
    width: 100%;
    overflow: hidden;
}
.auth-tabs {
    display: flex;
    border-bottom: 2px solid #f0f0f0;
}
.auth-tab {
    flex: 1;
    padding: 16px;
    text-align: center;
    font-size: 16px;
    color: #999;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
}
.auth-tab.active {
    color: #ff6b35;
    border-bottom-color: #ff6b35;
    font-weight: 600;
}
.auth-body {
    padding: 30px;
}
.auth-form-group {
    margin-bottom: 20px;
}
.auth-form-group label {
    display: block;
    font-size: 14px;
    color: #555;
    margin-bottom: 6px;
}
.auth-form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 15px;
    transition: border-color 0.3s;
    box-sizing: border-box;
}
.auth-form-group input:focus {
    border-color: #ff8c42;
    outline: none;
}
.auth-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #ff8c42 0%, #ff6b35 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}
.auth-btn:hover {
    transform: translateY(-1px);
}
.auth-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}
.auth-footer {
    text-align: center;
    padding: 20px 30px;
    border-top: 1px solid #f0f0f0;
    font-size: 13px;
    color: #999;
}
.auth-logo {
    text-align: center;
    padding: 30px 0 10px;
}
.auth-logo h1 {
    font-size: 28px;
    color: #ff6b35;
}
.auth-logo p {
    font-size: 14px;
    color: #999;
    margin-top: 5px;
}
.auth-error {
    color: #dc3545;
    font-size: 13px;
    margin-top: 8px;
    min-height: 18px;
}
.auth-success-msg {
    color: #28a745;
    font-size: 13px;
    margin-top: 8px;
    min-height: 18px;
}

.logo-reg { display: none !important; }

/* --- 返回按钮：文章页和子页面通用 --- */
.back-btn {
    position: fixed;
    top: 14px;
    left: 10px;
    z-index: 9999;
    width: 32px;
    height: 32px;
    background: rgba(255,255,255,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: #ff6b35;
    font-size: 18px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    cursor: pointer;
    transition: background 0.2s;
}
.back-btn:hover { background: #fff; }
@media (min-width: 768px) {
    .back-btn { top: 18px; left: 20px; width: 36px; height: 36px; font-size: 20px; }
}

/* ========================================
   全局移动优先响应式样式（所有页面生效）
   保持横向布局，只缩小尺寸，不拆单列
   ======================================== */

/* --- 防止横向滚动 --- */
html, body {
    overflow-x: hidden;
    max-width: 100%;
}
img { max-width: 100%; height: auto; }
table { max-width: 100%; display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
pre, code { white-space: pre-wrap; word-wrap: break-word; }

/* --- 手机端基础 --- */
body { font-size: 14px; line-height: 1.6; }

/* --- 顶部导航：手机端用汉堡菜单，桌面端显示完整导航 --- */
header { padding: 6px 0 !important; }
.header-content, .section-header-content {
    padding: 0 10px !important;
    flex-wrap: nowrap !important;
    gap: 6px;
    position: relative;
}
.logo { flex-shrink: 0; }
.logo img[alt="唤醒力"] { height: 32px !important; margin: 0 2px; }
.logo img[alt="唤醒力文字"] { height: 22px !important; }

/* 会员模式：导航平铺，不折叠 */
header nav.member-flat {
    display: flex !important;
    position: static !important;
    background: transparent !important;
    box-shadow: none !important;
    flex: 1;
    justify-content: center;
}
header nav.member-flat ul {
    flex-direction: row !important;
    gap: 16px !important;
    padding: 0 !important;
}
header nav.member-flat ul li { width: auto; }
header nav.member-flat a {
    display: inline-block;
    padding: 4px 8px;
    font-size: 14px !important;
    border-bottom: none !important;
    white-space: nowrap;
}

/* 手机端：隐藏导航，显示汉堡按钮 */
.hamburger-btn {
    display: flex !important;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 36px;
    background: rgba(255,255,255,0.2);
    border-radius: 8px;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-shrink: 0;
}
.hamburger-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background: #fff;
    border-radius: 2px;
    transition: 0.3s;
}
.hamburger-btn.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger-btn.active span:nth-child(2) { opacity: 0; }
.hamburger-btn.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* 手机端导航：横向滚动，不隐藏 */
header nav {
    display: block !important;
    position: static !important;
    background: transparent !important;
    box-shadow: none !important;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
header nav::-webkit-scrollbar { display: none; }
header nav ul {
    flex-direction: row !important;
    gap: 12px !important;
    padding: 5px 0;
}
header nav ul li { width: 100%; }
header nav a {
    display: block;
    padding: 10px 16px;
    font-size: 14px !important;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
header nav a:hover { background: rgba(255,255,255,0.1); opacity: 1; }

.nav-user-area { flex-shrink: 0; gap: 4px !important; flex-direction: row !important; overflow: visible !important; }
.nav-user-area a, .nav-user-area button { font-size: 10px !important; white-space: nowrap; }
.nav-login-btn { padding: 4px 8px !important; font-size: 10px !important; display: inline-flex !important; align-items: center !important; justify-content: center !important; line-height: 1.2 !important; flex-shrink: 0; }
.nav-points-mini { font-size: 9px !important; white-space: nowrap !important; overflow: visible !important; flex-shrink: 0; max-width: none !important; }
.nav-points-mini .points-num { font-size: 9px !important; }

/* 桌面端：显示完整导航，隐藏汉堡按钮 */
@media (min-width: 768px) {
    .hamburger-btn { display: none !important; }
    header nav {
        display: block !important;
        position: static !important;
        background: transparent !important;
        box-shadow: none !important;
    }
    header nav ul {
        flex-direction: row !important;
        gap: 12px !important;
        padding: 0 !important;
    }
    header nav ul li { width: auto; }
    header nav a {
        display: inline;
        padding: 0;
        font-size: 13px !important;
        border-bottom: none;
    }
}

/* --- 内容区域：缩小边距 --- */
.article-container, .article-hero, .banner, .learning-content,
.section-cards, .section-iframe-wrapper {
    padding-left: 10px !important;
    padding-right: 10px !important;
}

/* --- 文章正文 --- */
.article-body { font-size: 15px !important; line-height: 1.8 !important; }
.article-body p { margin-bottom: 16px !important; }
.article-body h2 { font-size: 19px !important; margin: 28px 0 14px !important; }
.article-body h3 { font-size: 16px !important; margin: 22px 0 10px !important; }

/* --- 卡片网格：保持2列而非单列 --- */
.feature-grid, .knowledge-tree .tree-grid, .section-cards {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
}

/* --- 图片自适应 --- */
.article-hero-image img, .article-body img { max-width: 100%; height: auto; border-radius: 10px; }

/* --- Banner/Hero缩小 --- */
.article-hero, .banner, .section-banner { padding: 20px 10px !important; }
.article-hero h1, .banner h2, .section-banner h2 { font-size: 22px !important; }
.article-hero .subtitle, .banner p, .section-banner p { font-size: 13px !important; }

/* --- 文章元信息 --- */
.article-meta { flex-wrap: wrap; gap: 8px !important; font-size: 12px !important; margin-bottom: 15px !important; padding-bottom: 12px !important; }

/* --- 公众号卡片：保持2列 --- */
.article-card { margin-bottom: 10px !important; }
.article-card img { width: 80px !important; height: 80px !important; object-fit: cover !important; border-radius: 8px !important; flex-shrink: 0 !important; }
.article-card h3, .article-card h4 { font-size: 14px !important; }
.article-card p { font-size: 12px !important; }
.article-info { padding: 10px; }
.article-info h4 { font-size: 14px; }
.article-info p { font-size: 12px; }

/* --- 表单 --- */
.auth-container { margin: 0 8px; border-radius: 14px; }
.auth-body { padding: 18px !important; }
.auth-form-group input { padding: 10px 14px !important; font-size: 14px !important; }
.auth-btn, .nav-login-btn, .share-btn { min-height: 40px; }

/* --- Toast --- */
.toast { left: 10px; right: 10px; top: 10px; text-align: center; padding: 10px 14px; font-size: 13px; }

/* --- 分享栏 --- */
.share-bar-wrap { padding: 12px 0 !important; margin-top: 18px !important; }
.share-btn { padding: 6px 12px !important; font-size: 12px !important; }

/* --- Footer --- */
footer { padding: 20px 10px; }
.footer-qr { gap: 15px; }
.footer-qr-item img { width: 70px; height: 70px; }
.footer-links { gap: 15px; }

/* --- 问答卡片：保持2列 --- */
.qa-list { grid-template-columns: 1fr !important; gap: 10px; }
.qa-card { padding: 12px; }
.qa-card .question { font-size: 14px; }
.qa-card .answer { font-size: 13px; }

/* --- 首页feature-card缩小 --- */
.feature-card { padding: 14px; }
.feature-card .icon { font-size: 28px; margin-bottom: 8px; }
.feature-card h4 { font-size: 14px; }
.feature-card p { font-size: 12px; }

/* --- 文章导航：保持横向 --- */
.article-nav { flex-wrap: wrap; gap: 8px; }
.article-nav a { min-width: 45% !important; }

/* ========================================
   平板端（600px以上）：接近桌面
   ======================================== */
@media (min-width: 600px) {
    body { font-size: 15px; }
    .logo img[alt="唤醒力"] { height: 36px !important; }
    .logo img[alt="唤醒力文字"] { height: 26px !important; }
    .feature-grid, .knowledge-tree .tree-grid, .section-cards {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 15px !important;
    }
    .article-card img { width: 90px !important; height: 90px !important; }
    .article-hero h1, .banner h2, .section-banner h2 { font-size: 28px !important; }
    .article-hero .subtitle, .banner p, .section-banner p { font-size: 15px !important; }
}

/* ========================================
   桌面端（768px以上）：完整尺寸
   ======================================== */
@media (min-width: 768px) {
    body { font-size: 16px; line-height: 1.8; }
    header { padding: 8px 0 !important; }
    .header-content, .section-header-content { padding: 0 12px !important; gap: 10px; }
    .logo img[alt="唤醒力"] { height: 40px !important; margin: 0 2px; }
    .logo img[alt="唤醒力文字"] { height: 30px !important; }
    .nav-login-btn { padding: 4px 10px !important; font-size: 12px !important; }
    .nav-points-mini { font-size: 11px; }
    .nav-user-area a, .nav-user-area button, .nav-user-area span { font-size: 12px !important; }
    .article-container, .article-hero, .banner, .learning-content,
    .section-cards, .section-iframe-wrapper {
        padding-left: 20px !important; padding-right: 20px !important;
    }
    .article-body { font-size: 17px !important; }
    .article-body p { margin-bottom: 22px !important; }
    .article-body h2 { font-size: 24px !important; margin: 45px 0 22px !important; }
    .article-body h3 { font-size: 19px !important; margin: 32px 0 16px !important; }
    .feature-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)) !important; gap: 25px !important; }
    .article-hero, .banner, .section-banner { padding: 40px 20px !important; }
    .article-hero h1, .banner h2, .section-banner h2 { font-size: 32px !important; }
    .article-hero .subtitle, .banner p, .section-banner p { font-size: 17px !important; }
    .article-card img { width: 120px !important; height: 120px !important; }
    .article-card h3, .article-card h4 { font-size: 18px !important; }
    .article-card p { font-size: 14px !important; }
    .article-info { padding: 20px; }
    .article-info h4 { font-size: 16px; }
    .article-info p { font-size: 14px; }
    .article-meta { gap: 20px !important; font-size: 14px !important; margin-bottom: 35px !important; padding-bottom: 25px !important; }
    .qa-list { grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)) !important; gap: 20px; }
    .qa-card { padding: 20px; }
    .qa-card .question { font-size: 15px; }
    .qa-card .answer { font-size: 14px; }
    .feature-card { padding: 30px; }
    .feature-card .icon { font-size: 40px; margin-bottom: 15px; }
    .feature-card h4 { font-size: 18px; }
    .feature-card p { font-size: 14px; }
    .auth-body { padding: 30px !important; }
    .auth-form-group input { padding: 12px 16px !important; font-size: 15px !important; }
    .share-btn { padding: 8px 18px !important; font-size: 14px !important; }
    .toast { left: auto; right: 20px; top: 20px; text-align: left; padding: 12px 24px; font-size: 14px; }
    footer { padding: 40px 20px; }
    .footer-qr { gap: 40px; }
    .footer-qr-item img { width: 110px; height: 110px; }
    .article-nav a { min-width: 45% !important; }
}