/* style.css - 校园论坛样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ============================================================
   行知论坛 · 全局主题样式
   配色方案: 红白/红黑
   ============================================================ */

:root {
    --primary: #c0392b;
    --primary-hover: #a93226;
    --primary-dark: #7B241C;
    --primary-light: #E74C3C;
    --accent: #f39c12;
    --accent-hover: #e67e22;
    --bg-body: #f5f0ee;
    --bg-card: #ffffff;
    --bg-surface: #faf7f5;
    --bg-surface-hover: #f0ebe8;
    --bg-input: #ffffff;
    --text: #2c3e50;
    --text-heading: #1a1a2e;
    --text-secondary: #5a4a44;
    --text-muted: #8c7a75;
    --text-inverse: #ffffff;
    --text-link: #c0392b;
    --border: #e0d5d0;
    --border-light: #efe8e4;
    --success: #27ae60;
    --danger: #e74c3c;
    --warning: #f39c12;
    --info: #3498db;
    --header-bg: #8B0000;
    --footer-bg: #1a0a0a;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-pill: 50px;
    --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', monospace;
    --transition-base: 0.2s ease;
    --header-h: 56px;
    --container-max: 1200px;
}

/* 暗色模式 */
[data-theme="dark"] {
    --primary: #e74c3c;
    --primary-hover: #c0392b;
    --primary-dark: #641E16;
    --bg-body: #1a1412;
    --bg-card: #2c2220;
    --bg-surface: #362a26;
    --bg-surface-hover: #40332e;
    --bg-input: #3a2e2a;
    --text: #e8e0dc;
    --text-heading: #f5efe8;
    --text-secondary: #b8a8a2;
    --text-muted: #8a7a72;
    --text-link: #e74c3c;
    --border: #4a3a36;
    --border-light: #3a2e2a;
    --header-bg: #4a0a0a;
    --footer-bg: #0a0505;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);

    /* 硬编码颜色的深色覆盖 */
    --color-white-bg: #2a1e1c;
    --color-light-bg: #221816;
    --color-code-bg: #2d2420;
    --color-card-bg: #2a1e1c;
    --color-text-soft: #c8b8b2;
    --color-text-muted: #9a8a82;
    --color-border-soft: #3d302c;
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-body);
    color: var(--text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: background var(--transition-base), color var(--transition-base);
}

header, .app-header {
    background: var(--header-bg);
    color: var(--text-inverse);
    padding: 10px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}
/* 帖子内容中的代码块样式 */
.post-content pre {
    background: #f6f8fa;
    border-radius: 6px;
    padding: 16px;
    overflow-x: auto;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 0.85rem;
    line-height: 1.45;
    border: 1px solid #e1e4e8;
}

.post-content code {
    background: #f6f8fa;
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-family: monospace;
    font-size: 0.85rem;
    color: #e83e8c;
}

.post-content pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

/* 列表样式 */
.post-content ul, .post-content ol {
    margin: 1em 0;
    padding-left: 2em;
}

.post-content li {
    margin: 0.5em 0;
}

/* 引用块 */
.post-content blockquote {
    margin: 1em 0;
    padding: 0.5em 1em;
    border-left: 4px solid var(--primary);
    background: var(--bg-surface);
    color: var(--text-secondary);
}

/* 表格样式 */
.post-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 1em 0;
}

.post-content th, .post-content td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

.post-content th {
    background: #f2f2f2;
}
.badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: #e74c3c;
    color: white;
    border-radius: 50%;
    padding: 2px 6px;
    font-size: 0.7rem;
    min-width: 18px;
    text-align: center;
}
/* 红色主题全局覆盖 */
body { background: #f9f9f9; }
.container { max-width: 1200px; margin: 0 auto; }
a { color: #c0392b; text-decoration: none; }
a:hover { text-decoration: underline; }
button, .btn, input[type="submit"] { background: #c0392b; color: white; border: none; border-radius: 30px; padding: 8px 20px; cursor: pointer; }
button:hover { background: #a93226; }
.post-card { background: white; border-radius: 12px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); transition: transform 0.2s; }
.post-card:hover { transform: translateY(-2px); }
.pagination a.current { background: var(--primary); color: var(--text-inverse); border-color: var(--primary); }
/* 消息中心 */
.msg-tabs { display: flex; gap: 10px; margin-bottom: 20px; border-bottom: 1px solid #ddd; }
.tab-btn { background: none; border: none; padding: 8px 16px; cursor: pointer; }
.tab-btn.active { color: var(--primary); border-bottom: 2px solid var(--primary); }
.tab-pane { display: none; }
.tab-pane.active { display: block; }
.chat-item, .request-item, .notice-item { background: white; padding: 12px; margin-bottom: 8px; border-radius: 8px; box-shadow: 0 1px 2px rgba(0,0,0,0.1); cursor: pointer; }
.chat-item strong { display: block; }
.last-msg { font-size: 0.8rem; color: #666; }
.request-item button { margin-left: 8px; padding: 4px 12px; }
.post-stats { display: flex; gap: 20px; margin-top: 15px; align-items: center; }
.heart { fill: none; stroke: #e74c3c; stroke-width: 2; transition: fill 0.2s; cursor: pointer; }
.heart.liked { fill: #e74c3c; }
.user-actions { margin-top: 20px; display: flex; gap: 10px; }
.btn { display: inline-block; background: var(--primary); color: white; padding: 8px 16px; text-decoration: none; border-radius: 4px; border: none; cursor: pointer; }
/* 头部整体布局 */
.app-header, header {
    background: var(--header-bg);
    color: var(--text-inverse);
    padding: 12px 16px;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.logo {
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    flex: 1;
    justify-content: flex-end;
}

/* 搜索框必须可见，设置最小宽度和弹性 */
/* 搜索表单 - 输入框与按钮分离 */
.search-form {
    display: flex;
    align-items: center;
    gap: 8px;
    background: white;
    border-radius: 30px;
    padding: 2px 2px 2px 15px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.search-form input {
    border: none;
    padding: 8px 0;
    font-size: 0.9rem;
    outline: none;
    background: transparent;
    flex: 1;
    min-width: 180px;
}

.search-form button {
    background: #f39c12;
    border: none;
    border-radius: 30px;
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.search-form button:hover {
    background: #e67e22;
}

.search-form svg {
    display: block;
} 

/* 按钮样式 - 确保不被压缩 */
/* 头部按钮样式 - 与 404 页面统一 */
.header-bt1 {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
    color: white;
    padding: 8px 18px;
    border-radius: 40px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    border: none;
    cursor: pointer;
    letter-spacing: 0.5px;
}

.header-btn:hover {
    background: linear-gradient(135deg, #e67e22 0%, #d35400 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    color: white;
    text-decoration: none;
}

.header-btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

/* 用户信息区域 */
.user-info {
    display: flex;
    gap: 8px;
    align-items: center;
    white-space: nowrap;
    flex-shrink: 0;
}

/* 响应式：小屏幕下调整间距 */
@media (max-width: 768px) {
    .header-right {
        gap: 8px;
    }
    .search-form {
        min-width: 120px;
        max-width: 200px;
    }
    .header-btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    .user-info {
        font-size: 0.85rem;
    }
}

/* 超小屏幕：换行后仍保持搜索框可见 */
@media (max-width: 550px) {
    .header-right {
        justify-content: flex-start;
    }
    .search-form {
        order: 1;
        min-width: 100%;
        max-width: 100%;
        margin-bottom: 5px;
    }
    .header-btn, .user-info {
        order: 2;
    }
}

main {
    flex: 1;
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
    width: 100%;
}

h1, h2 {
    margin-bottom: 20px;
    color: var(--text-heading);
}
h1 { font-size: 1.5rem; font-weight: 700; color: var(--primary-dark); }
/* 确保帖子内容中所有图片自适应容器宽度 */
.post-content img,
.post-content figure img,
.post-content p img,
.post-content div img,
.post-content span img {
    max-width: 100% !important;
    width: auto !important;
    height: auto !important;
    display: block !important;
    margin: 10px auto !important;
    float: none !important;
    clear: both !important;
}

/* 同时限制外层容器不溢出 */
.post-content {
    overflow-x: auto !important;
    word-wrap: break-word !important;
    max-width: 100% !important;
}

/* 对于 Markdown 渲染的表格、代码块等也可一并限制 */
.post-content pre,
.post-content table {
    max-width: 100%;
    overflow-x: auto;
    display: block;
}

.post-list, .comment-list {
    list-style: none;
}

.post-list li, .comment-list li {
    background: white;
    margin-bottom: 20px;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.post-list h2 {
    margin-bottom: 10px;
}

.post-meta {
    font-size: 0.85rem;
    color: #666;
    margin-bottom: 15px;
}

.pagination {
    margin: 20px 0;
    text-align: center;
}

.pagination a {
    display: inline-block;
    padding: 8px 12px;
    margin: 0 4px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    text-decoration: none;
    color: var(--text-link);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.pagination a:hover {
    background: var(--primary);
    color: var(--text-inverse);
    border-color: var(--primary);
}

.login-container, .register-container, .auth-card {
    max-width: 420px;
    margin: 80px auto;
    background: var(--bg-card);
    padding: 36px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}
.login-container input, .register-container input, form input, form textarea, .form-input {
    width: 100%;
    padding: 10px 14px;
    margin: 8px 0;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text);
    font-family: var(--font-sans);
    transition: all var(--transition-base);
}
.login-container input:focus, .register-container input:focus, form input:focus, form textarea:focus, .form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(192,57,43,0.1);
    outline: none;
}

.login-container input, .register-container input, form input, form textarea {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    background: var(--primary);
    color: var(--text-inverse);
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius-pill);
    cursor: pointer;
    font-family: var(--font-sans);
    transition: all var(--transition-base);
}

button:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.error {
    color: #e74c3c;
    margin-bottom: 15px;
}

.success {
    color: #27ae60;
    margin-bottom: 15px;
}

footer {
    background: var(--footer-bg);
    color: #ccc;
    text-align: center;
    padding: 20px;
    margin-top: auto;
    border-top: 3px solid var(--primary-dark);
}

footer a {
    color: var(--accent);
    text-decoration: none;
}
footer a:hover { color: var(--accent-hover); }

table {
    background: white;
    width: 100%;
    margin: 20px 0;
}

th {
    background: var(--primary);
    color: var(--text-inverse);
    padding: 10px 12px;
    font-weight: 600;
}

td {
    padding: 8px;
    border-bottom: 1px solid #ddd;
}

.post-full {
    background: var(--bg-card);
    padding: 30px;
    border-radius: var(--radius-lg);
    margin-bottom: 30px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.comment-form textarea {
    width: 100%;
    padding: 10px 14px;
    margin: 10px 0;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text);
    font-family: var(--font-sans);
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stats-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 20px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}
.stats-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}
.stats-card-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}
.stats-card-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-heading);
}
.stats-card-icon {
    font-size: 24px;
    opacity: 0.7;
}

/* 模态框 */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}
.modal-overlay.show { display: flex; }
.custom-modal {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    max-width: 520px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    max-height: 85vh;
    overflow-y: auto;
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
}
.modal-header h3 {
    margin: 0;
    font-size: 16px;
    color: var(--text-heading);
}
.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-muted);
    padding: 0;
    line-height: 1;
}
.modal-body { padding: 20px 24px; }
.modal-footer {
    padding: 12px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* Toast 通知 */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 5000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.toast {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    animation: slideInRight 0.3s ease;
    min-width: 280px;
}
.toast-success { border-left: 4px solid var(--success); }
.toast-error { border-left: 4px solid var(--danger); }
.toast-warning { border-left: 4px solid var(--warning); }
.toast-info { border-left: 4px solid var(--info); }
.toast-exit { animation: slideOutRight 0.3s ease forwards; }
@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}
@keyframes slideOutRight {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* 暗色模式切换按钮 */
.theme-toggle {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
    transition: all var(--transition-base);
    flex-shrink: 0;
}
.theme-toggle:hover {
    background: rgba(255,255,255,0.25);
    transform: rotate(30deg);
}

/* ============================================================
   通用按钮变体（供 OAuth / Platform 子站使用）
   ============================================================ */
.btn-ghost {
    background: transparent;
    color: var(--text-inverse);
    border: 1px solid rgba(255,255,255,0.3);
}
.btn-ghost:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-1px);
}
.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}
.btn-danger {
    background: var(--danger);
    color: #fff;
}
.btn-danger:hover {
    background: #c0392b;
    transform: translateY(-1px);
}
.btn-accent {
    background: linear-gradient(135deg, #f39c12, #e67e22);
    color: #fff;
}
.btn-accent:hover {
    background: linear-gradient(135deg, #e67e22, #d35400);
    transform: translateY(-1px);
}
.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1.5px solid var(--border);
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-1px);
}
.btn-outline-light {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255,255,255,0.5);
}
.btn-outline-light:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
    transform: translateY(-1px);
}
.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
    border-radius: var(--radius-pill);
}
.btn-lg {
    padding: 12px 28px;
    font-size: 15px;
    border-radius: var(--radius-pill);
}

/* 徽章变体 */
.badge-success {
    display: inline-block;
    padding: 2px 10px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 500;
    background: rgba(39,174,96,0.12);
    color: var(--success);
}
.badge-warning {
    display: inline-block;
    padding: 2px 10px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 500;
    background: rgba(243,156,18,0.12);
    color: var(--warning);
}
.badge-danger {
    display: inline-block;
    padding: 2px 10px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 500;
    background: rgba(231,76,60,0.12);
    color: var(--danger);
}
.badge-ghost {
    display: inline-block;
    padding: 2px 10px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 500;
    background: rgba(0,0,0,0.05);
    color: var(--text-muted);
}

/* ============================================================
   站点头部 / 导航 / 底部（Platform / OAuth 共用）
   ============================================================ */
.site-header {
    background: var(--header-bg);
    color: var(--text-inverse);
    padding: 0 24px;
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    gap: 16px;
}
.header-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-inverse);
    text-decoration: none;
    flex-shrink: 0;
}
.header-logo:hover {
    text-decoration: none;
}
.header-logo .logo-icon {
    width: 32px;
    height: 32px;
    background: rgba(255,255,255,0.15);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}
.header-logo .logo-text {
    font-weight: 700;
    font-size: 16px;
}
.header-logo .logo-text .hl {
    color: #f39c12;
}
.header-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 4px;
    color: rgba(255,255,255,0.75);
    text-decoration: none;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: all var(--transition-base);
}
.nav-item:hover {
    background: rgba(255,255,255,0.1);
    color: #fff;
    text-decoration: none;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* 站点底部 */
.site-footer {
    background: var(--footer-bg);
    color: #ccc;
    padding: 20px;
    margin-top: auto;
    border-top: 3px solid var(--primary-dark);
}
.footer-inner {
    max-width: var(--container-max);
    margin: 0 auto;
}
.footer-motto {
    font-size: 15px;
    color: rgba(255,255,255,0.5);
    margin-bottom: 12px;
}
.footer-motto span {
    margin: 0 6px;
}
.footer-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 12px;
    margin-top: 12px;
}
.footer-bottom a {
    color: var(--accent);
    text-decoration: none;
}
.footer-bottom a:hover {
    color: var(--accent-hover);
}

/* ============================================================
   表单组件
   ============================================================ */
.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}
.form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-input);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 14px;
    resize: vertical;
    transition: all var(--transition-base);
}
.form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(192,57,43,0.1);
    outline: none;
}
.form-error {
    background: rgba(231,76,60,0.08);
    color: var(--danger);
    border: 1px solid rgba(231,76,60,0.2);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    font-size: 14px;
    margin-bottom: 12px;
}

/* ============================================================
   头像
   ============================================================ */
.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    flex-shrink: 0;
}
.avatar-lg {
    width: 48px;
    height: 48px;
    font-size: 18px;
}

/* ============================================================
   加载动画
   ============================================================ */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================================
   OAuth 授权页面样式
   ============================================================ */
.oauth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #FEF2F2 0%, #FFFBEB 100%);
    padding: 20px;
}
[data-theme="dark"] .oauth-page {
    background: linear-gradient(135deg, #1C1917 0%, #292524 100%);
}
.oauth-card {
    width: 100%;
    max-width: 480px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: fadeIn .4s ease;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}
.oauth-head {
    background: linear-gradient(135deg, #991B1B, #DC2626);
    padding: 28px 32px 24px;
    text-align: center;
    color: #fff;
}
.oauth-head .app-icon {
    width: 72px;
    height: 72px;
    border-radius: 18px;
    background: rgba(255,255,255,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 32px;
    backdrop-filter: blur(4px);
}
.oauth-head h2 {
    color: #fff;
    margin-bottom: 4px;
    font-size: 20px;
}
.oauth-head .app-domain {
    font-size: 13px;
    opacity: .75;
}
.oauth-body {
    padding: 24px 32px;
}
.oauth-user {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px;
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    border: 1px solid var(--border);
}
.oauth-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}
.oauth-actions form {
    display: flex;
    gap: 12px;
    width: 100%;
}
.oauth-actions .btn {
    flex: 1;
    padding: 12px;
    font-size: 15px;
}
.oauth-foot {
    padding: 14px 32px;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    background: var(--bg-surface);
}
.perm-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 0;
}
.perm-item + .perm-item {
    border-top: 1px solid var(--border-light);
}
.perm-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
@media (max-width:480px) {
    .oauth-card { box-shadow: none; border: none; border-radius: 0; }
    .oauth-head { border-radius: 0; }
    .oauth-body { padding: 20px 16px; }
}

/* ============================================================
   开发者 Dashboard 专用样式
   ============================================================ */
.dev-header {
    background: var(--header-bg);
    color: var(--text-inverse);
    padding: 0 24px;
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}
.dev-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}
.dev-header-left .logo {
    font-weight: 700;
    font-size: 16px;
    color: var(--text-inverse);
}
.dev-header-left .logo small {
    font-weight: 400;
    font-size: 12px;
    opacity: 0.8;
}
.dev-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}
.dev-main {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 24px;
}

/* 应用卡片 */
.app-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.app-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
    overflow: hidden;
}
.app-card:hover {
    box-shadow: var(--shadow-md);
}
.app-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-light);
    flex-wrap: wrap;
    gap: 8px;
}
.app-card-header .app-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-heading);
    display: flex;
    align-items: center;
    gap: 8px;
}
.app-card-body {
    padding: 16px 24px;
}
.app-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 24px;
}
.app-details .detail-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.app-details .detail-item.full-width {
    grid-column: 1 / -1;
}
.app-details .detail-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    font-weight: 600;
}
.app-details .detail-value {
    font-size: 13px;
    color: var(--text);
    word-break: break-all;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
}
.app-details .detail-value .plain-text {
    font-family: var(--font-sans);
}
.app-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 24px;
    border-top: 1px solid var(--border-light);
    background: var(--bg-surface-hover);
    flex-wrap: wrap;
    gap: 8px;
}
.app-card-footer .app-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 12px;
    color: var(--text-muted);
}
.app-card-footer .app-meta .dev-name {
    color: var(--text-secondary);
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 64px 24px;
    color: var(--text-muted);
}
.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}
.empty-state h3 {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}
.empty-state p {
    font-size: 13px;
    max-width: 360px;
    margin: 0 auto 16px;
}

/* 图标按钮 */
.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 13px;
    transition: all var(--t-fast);
    flex-shrink: 0;
    padding: 0;
    line-height: 1;
}
.icon-btn:hover {
    background: var(--bg-surface-hover);
    color: var(--text);
    border-color: var(--text-muted);
}
.icon-btn.copied {
    background: var(--success);
    color: #fff;
    border-color: var(--success);
}

/* 开发者登录页 */
.dev-login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-body);
    padding: 20px;
}
.dev-login-card {
    width: 100%;
    max-width: 420px;
}
.dev-login-card .auth-card {
    border: 1px solid var(--border-light);
}
.dev-login-header {
    text-align: center;
    margin-bottom: 28px;
}
.dev-login-header .platform-icon {
    width: 64px;
    height: 64px;
    background: var(--primary);
    border-radius: var(--radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #fff;
    margin-bottom: 16px;
}
.dev-login-header h1 {
    font-size: 24px;
    margin-bottom: 4px;
}
.dev-login-header p {
    color: var(--text-muted);
    font-size: 13px;
}
.dev-login-error {
    background: rgba(231,76,60,0.08);
    color: var(--danger);
    border: 1px solid rgba(231,76,60,0.2);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    font-size: 13px;
    margin-bottom: 16px;
    text-align: center;
}
.dev-login-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 13px;
    color: var(--text-muted);
}
.dev-login-footer a {
    color: var(--text-link);
}
.dev-login-submit {
    width: 100%;
    padding: 12px;
    background: var(--primary);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-sans);
}
.dev-login-submit:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(192,57,43,0.3);
}

/* OAuth 登录卡片 */
.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 36px 32px;
    animation: fadeIn .4s ease;
}
.login-head {
    text-align: center;
    margin-bottom: 28px;
}
.login-head .brand {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}
.login-head .brand span {
    color: var(--text-heading);
}
.login-head .sub {
    font-size: 13px;
    color: var(--text-muted);
}
.input-wrap {
    position: relative;
}
.input-wrap .ico {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}
.input-wrap input {
    width: 100%;
    padding: 12px 14px 12px 40px;
    font-size: 15px;
    font-family: var(--font-sans);
    color: var(--text);
    background: var(--bg-input);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--t-fast);
}
.input-wrap input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(220,38,38,0.12);
}
.login-btn {
    width: 100%;
    padding: 13px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--t-fast);
}
.login-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}
.login-btn:disabled {
    opacity: .6;
    cursor: not-allowed;
    transform: none;
}
.error-box {
    background: rgba(220,38,38,0.08);
    border: 1px solid rgba(220,38,38,0.2);
    color: var(--danger);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.login-foot {
    text-align: center;
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
}
.login-foot a {
    color: var(--text-link);
}
@media (max-width:480px) {
    .login-card {
        box-shadow: none;
        border: none;
        background: transparent;
        padding: 24px 16px;
    }
}

/* 响应式补丁 */
@media (max-width: 768px) {
    .app-details { grid-template-columns: 1fr; }
    .dev-header { padding: 0 16px; }
    .dev-main { padding: 16px; }
    .site-header { padding: 0 16px; }
    .header-nav { gap: 0; }
    .header-nav .nav-item { padding: 8px; }
}
@media (max-width: 480px) {
    .app-card-header { flex-direction: column; align-items: flex-start; }
    .app-card-footer { flex-direction: column; align-items: flex-start; }
}

/* ============================================================
   暗色模式 · 硬编码颜色覆盖 + 防撞色
   注意：原生 CSS 不支持嵌套选择器，每个选择器必须平铺写
   ============================================================ */

/* 硬编码 white 背景的模块 → 深色 */
[data-theme="dark"] body,
[data-theme="dark"] .post-list li,
[data-theme="dark"] .comment-list li {
    background: var(--bg-body);
}
[data-theme="dark"] .post-card,
[data-theme="dark"] .chat-item,
[data-theme="dark"] .request-item,
[data-theme="dark"] .notice-item {
    background: var(--bg-card);
}
[data-theme="dark"] .post-content pre {
    background: #2d2420;
    border-color: var(--border);
}
[data-theme="dark"] .post-content code {
    background: #2d2420;
    color: #e86a8c;
}
[data-theme="dark"] .post-content pre code {
    background: transparent;
}
[data-theme="dark"] .post-content blockquote {
    background: var(--bg-surface);
    border-left-color: var(--primary);
    color: var(--text-secondary);
}
[data-theme="dark"] .post-content th {
    background: var(--primary-dark);
}
[data-theme="dark"] .post-content td,
[data-theme="dark"] td {
    border-color: var(--border);
}
[data-theme="dark"] table {
    background: var(--bg-card);
}
[data-theme="dark"] .post-meta,
[data-theme="dark"] .last-msg {
    color: var(--text-muted);
}

/* 防撞色：按钮文字 */
[data-theme="dark"] .btn-outline {
    border-color: var(--border);
    color: var(--text);
}
[data-theme="dark"] .btn-outline:hover {
    color: var(--primary-light);
}

/* 输入框 / 搜索 */
[data-theme="dark"] .search-form {
    background: var(--bg-input);
}
[data-theme="dark"] .search-form input {
    color: var(--text);
}
[data-theme="dark"] form input,
[data-theme="dark"] form textarea {
    background: var(--bg-input);
    color: var(--text);
    border-color: var(--border);
}

/* 分页 */
[data-theme="dark"] .pagination a {
    background: var(--bg-card);
    border-color: var(--border);
}

/* 底部 */
[data-theme="dark"] footer {
    background: var(--footer-bg);
}

/* 深色主题下 .btn-ghost 保持可见 */
[data-theme="dark"] .btn-ghost {
    border-color: rgba(255,255,255,0.35);
    color: rgba(255,255,255,0.9);
}
[data-theme="dark"] .theme-toggle {
    border-color: rgba(255,255,255,0.35);
}