/* ===== 个人主页前端样式 - TDesign Enterprise & Editorial Design System ===== */

:root {
    /* TDesign Brand Palette */
    --td-brand-color-1: #F2F3FF;
    --td-brand-color-2: #D9E1FF;
    --td-brand-color-3: #B5C7FF;
    --td-brand-color: #0052D9;
    --td-brand-color-hover: #266FE8;
    --td-brand-color-active: #003CAB;

    /* TDesign Semantic Palette */
    --td-success-color: #00A870;
    --td-success-bg: #E3F9E9;
    --td-warning-color: #E37318;
    --td-warning-bg: #FFF1E9;
    --td-error-color: #D54941;
    --td-error-bg: #FFF0ED;

    /* Surface & Text Tokens */
    --td-bg-color-page: #F3F5F8;
    --td-bg-color-container: #FFFFFF;
    --td-bg-color-secondary: #F8FAFC;
    --td-bg-color-component: #EDF1F7;
    --td-text-primary: #111827;
    --td-text-secondary: #4B5563;
    --td-text-placeholder: #6B7280;
    --td-border-level-1: #E5E7EB;
    --td-border-level-2: #D1D5DB;

    /* Geometry & Elevation */
    --td-radius-small: 4px;
    --td-radius-default: 8px;
    --td-radius-large: 12px;
    --td-radius-extra: 16px;
    --td-shadow-1: 0 1px 2px rgba(15, 23, 42, 0.05), 0 2px 6px rgba(15, 23, 42, 0.03);
    --td-shadow-2: 0 6px 18px -4px rgba(15, 23, 42, 0.08), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
    --td-shadow-3: 0 14px 30px -6px rgba(0, 82, 217, 0.14), 0 4px 12px -2px rgba(15, 23, 42, 0.06);
    --td-ease: cubic-bezier(0.38, 0, 0.24, 1);
}

[data-theme="dark"] {
    --td-brand-color-1: rgba(38, 111, 232, 0.16);
    --td-brand-color-2: rgba(38, 111, 232, 0.28);
    --td-brand-color: #4582E6;
    --td-brand-color-hover: #699EF5;
    --td-brand-color-active: #266FE8;
    --td-success-color: #2BA471;
    --td-success-bg: rgba(43, 164, 113, 0.16);
    --td-warning-color: #E37318;
    --td-warning-bg: rgba(227, 115, 24, 0.16);
    --td-error-color: #E34D59;
    --td-error-bg: rgba(227, 77, 89, 0.16);
    --td-bg-color-page: #0B1120;
    --td-bg-color-container: #151F32;
    --td-bg-color-secondary: #1E293B;
    --td-bg-color-component: #263449;
    --td-text-primary: #F3F4F6;
    --td-text-secondary: #9CA3AF;
    --td-text-placeholder: #6B7280;
    --td-border-level-1: #263449;
    --td-border-level-2: #334155;
    --td-shadow-1: 0 2px 8px rgba(0, 0, 0, 0.35);
    --td-shadow-2: 0 8px 24px rgba(0, 0, 0, 0.45);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--td-bg-color-page);
    color: var(--td-text-primary);
    line-height: 1.65;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.25s var(--td-ease), color 0.25s var(--td-ease);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Lucide 图标基础样式 */
.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    vertical-align: middle;
    flex-shrink: 0;
}
.icon svg {
    width: 1em;
    height: 1em;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

a {
    color: var(--td-brand-color);
    text-decoration: none;
    transition: color 0.2s var(--td-ease), background-color 0.2s var(--td-ease), border-color 0.2s var(--td-ease);
}

a:hover {
    color: var(--td-brand-color-hover);
}

:focus-visible {
    outline: 2px solid var(--td-brand-color);
    outline-offset: 2px;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ===== Reading Progress Bar ===== */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, #0052D9 0%, #366EF4 50%, #00A870 100%);
    width: 0%;
    z-index: 200;
    transition: width 0.1s linear;
}

/* ===== Header ===== */
.site-header {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--td-border-level-1);
    position: sticky;
    top: 0;
    z-index: 100;
}

[data-theme="dark"] .site-header {
    background: rgba(21, 31, 50, 0.88);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 16px;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 700;
    color: var(--td-text-primary);
    letter-spacing: -0.01em;
}

.site-brand-mark {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--td-brand-color);
    color: #FFFFFF;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(0, 82, 217, 0.28);
}

.site-brand:hover {
    color: var(--td-brand-color);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.site-nav {
    display: flex;
    gap: 6px;
    align-items: center;
    flex-wrap: wrap;
}

.site-nav a {
    color: var(--td-text-secondary);
    padding: 6px 14px;
    border-radius: var(--td-radius-default);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s var(--td-ease);
}

.site-nav a:hover {
    color: var(--td-brand-color);
    background: var(--td-brand-color-1);
}

.site-nav a.active {
    color: #FFFFFF;
    background: var(--td-brand-color);
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(0, 82, 217, 0.24);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-left: 8px;
    border-left: 1px solid var(--td-border-level-1);
}

.icon-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--td-radius-default);
    border: 1px solid var(--td-border-level-2);
    background: var(--td-bg-color-secondary);
    color: var(--td-text-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s var(--td-ease);
}

.icon-btn:hover {
    border-color: var(--td-brand-color);
    color: var(--td-brand-color);
    background: var(--td-brand-color-1);
}

.admin-entry-btn {
    height: 36px;
    padding: 0 14px;
    border-radius: var(--td-radius-default);
    background: var(--td-brand-color);
    color: #FFFFFF !important;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--td-brand-color);
    box-shadow: 0 2px 6px rgba(0, 82, 217, 0.22);
    transition: all 0.2s var(--td-ease);
}

.admin-entry-btn:hover {
    background: var(--td-brand-color-hover);
    border-color: var(--td-brand-color-hover);
    transform: translateY(-1px);
}

.mobile-only-btn {
    display: none;
}

/* ===== Mobile Search Panel & Navigation Drawer ===== */
.mobile-search-panel {
    display: none;
    border-top: 1px solid var(--td-border-level-1);
    background: var(--td-bg-color-container);
    padding: 12px 0;
}

.mobile-search-panel.open {
    display: block;
    animation: slideDownSearch 0.2s var(--td-ease);
}

@keyframes slideDownSearch {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

.mobile-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(9, 15, 28, 0.55);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    z-index: 250;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s var(--td-ease), visibility 0.25s var(--td-ease);
}

.mobile-drawer-overlay.open {
    opacity: 1;
    visibility: visible;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(300px, 84vw);
    background: var(--td-bg-color-container);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.28s var(--td-ease);
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
}

.mobile-drawer-overlay.open .mobile-drawer {
    transform: translateX(0);
}

.mobile-drawer-header {
    padding: 16px 18px;
    border-bottom: 1px solid var(--td-border-level-1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mobile-drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: 18px;
    -webkit-overflow-scrolling: touch;
}

.mobile-drawer-section-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--td-text-placeholder);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 10px;
}

.mobile-drawer-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.mobile-drawer-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 11px 14px;
    border-radius: var(--td-radius-default);
    color: var(--td-text-primary);
    font-size: 14.5px;
    font-weight: 500;
    background: var(--td-bg-color-secondary);
    border: 1px solid transparent;
}

.mobile-drawer-nav a.active {
    background: var(--td-brand-color-1);
    color: var(--td-brand-color);
    border-color: var(--td-brand-color-3);
    font-weight: 600;
}

.mobile-drawer-nav a.active .category-count {
    background: var(--td-brand-color);
    color: #FFFFFF;
}

.mobile-drawer-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-drawer-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: var(--td-radius-default);
    background: var(--td-bg-color-secondary);
    border: 1px solid var(--td-border-level-1);
    color: var(--td-text-primary);
    font-size: 13.5px;
    font-weight: 600;
}

.mobile-drawer-footer {
    padding: 16px 18px;
    border-top: 1px solid var(--td-border-level-1);
}

/* Mobile Horizontal Category Pills */
.mobile-cat-pills {
    display: none;
    gap: 8px;
    overflow-x: auto;
    padding: 2px 2px 14px;
    margin-bottom: 8px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.mobile-cat-pills::-webkit-scrollbar {
    display: none;
}

.cat-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 999px;
    background: var(--td-bg-color-container);
    border: 1px solid var(--td-border-level-2);
    color: var(--td-text-secondary);
    font-size: 13.5px;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
    box-shadow: var(--td-shadow-1);
}

.cat-pill-cnt {
    font-size: 11.5px;
    padding: 1px 6px;
    border-radius: 999px;
    background: var(--td-bg-color-component);
    color: var(--td-text-secondary);
}

.cat-pill.active {
    background: var(--td-brand-color);
    border-color: var(--td-brand-color);
    color: #FFFFFF;
    box-shadow: 0 3px 10px rgba(0, 82, 217, 0.26);
}

.cat-pill.active .cat-pill-cnt {
    background: rgba(255, 255, 255, 0.22);
    color: #FFFFFF;
}

/* ===== Hero / Profile Section ===== */
.hero-section {
    background: linear-gradient(135deg, #003494 0%, #0052D9 52%, #1668DC 100%);
    color: #FFFFFF;
    padding: 48px 0;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.14) 1px, transparent 1px);
    background-size: 24px 24px;
    opacity: 0.45;
    pointer-events: none;
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
}

.hero-profile {
    display: flex;
    align-items: center;
    gap: 24px;
    flex: 1;
    min-width: 280px;
}

.hero-avatar {
    width: 88px;
    height: 88px;
    border-radius: 20px;
    border: 3px solid rgba(255, 255, 255, 0.35);
    object-fit: cover;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 24px rgba(0, 20, 60, 0.28);
}

.hero-avatar-placeholder {
    width: 88px;
    height: 88px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.16);
    border: 2px solid rgba(255, 255, 255, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: 700;
    color: #FFFFFF;
    flex-shrink: 0;
    box-shadow: 0 8px 24px rgba(0, 20, 60, 0.25);
}

.hero-info {
    text-align: left;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.24);
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 10px;
}

.hero-badge-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #2BA471;
    box-shadow: 0 0 0 3px rgba(43, 164, 113, 0.3);
}

.hero-name {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 6px;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.hero-bio {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.88);
    max-width: 560px;
    line-height: 1.6;
}

.hero-social {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 16px;
}

.hero-social a {
    color: #003494;
    background: #FFFFFF;
    padding: 7px 15px;
    border-radius: var(--td-radius-default);
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    transition: all 0.2s var(--td-ease);
}

.hero-social a:hover {
    background: #F2F3FF;
    color: #0052D9;
    transform: translateY(-1px);
}

.hero-stats {
    display: flex;
    gap: 14px;
}

.hero-stat-box {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.22);
    backdrop-filter: blur(8px);
    padding: 14px 20px;
    border-radius: var(--td-radius-large);
    min-width: 104px;
    text-align: center;
}

.hero-stat-num {
    font-size: 24px;
    font-weight: 700;
    line-height: 1.2;
}

.hero-stat-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 4px;
}

/* ===== Main Layout ===== */
.main-content {
    padding: 36px 0 64px;
    flex: 1;
}

.main-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 28px;
    align-items: start;
}

@media (max-width: 860px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== Section Header & Filter Bar ===== */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
    gap: 12px;
    flex-wrap: wrap;
}

.section-title {
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--td-text-primary);
}

.section-title::before {
    content: '';
    display: block;
    width: 4px;
    height: 18px;
    background: var(--td-brand-color);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 13px;
    color: var(--td-text-placeholder);
    font-weight: 400;
}

.clear-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 12px;
    border-radius: var(--td-radius-default);
    background: var(--td-bg-color-container);
    border: 1px solid var(--td-border-level-2);
    color: var(--td-text-secondary);
    font-size: 12px;
    font-weight: 500;
}

.clear-filter-btn:hover {
    border-color: var(--td-brand-color);
    color: var(--td-brand-color);
    background: var(--td-brand-color-1);
}

/* ===== Post Card ===== */
.post-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.post-card {
    background: var(--td-bg-color-container);
    border-radius: var(--td-radius-large);
    box-shadow: var(--td-shadow-1);
    padding: 24px 28px;
    transition: all 0.25s var(--td-ease);
    border: 1px solid var(--td-border-level-1);
    position: relative;
}

.post-card:hover {
    box-shadow: var(--td-shadow-2);
    border-color: var(--td-brand-color-3);
    transform: translateY(-2px);
}

.post-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.post-card-title {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.post-card-title a {
    color: var(--td-text-primary);
}

.post-card-title a:hover {
    color: var(--td-brand-color);
}

.post-card-meta {
    display: flex;
    gap: 14px;
    font-size: 12.5px;
    color: var(--td-text-placeholder);
    margin-bottom: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.post-card-meta .icon svg {
    width: 14px;
    height: 14px;
}

.post-card-meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.post-card-excerpt {
    color: var(--td-text-secondary);
    font-size: 14.5px;
    line-height: 1.75;
    margin-bottom: 16px;
}

.post-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    padding-top: 14px;
    border-top: 1px dashed var(--td-border-level-1);
}

.post-card-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--td-radius-small);
    background: var(--td-brand-color-1);
    color: var(--td-brand-color);
    border: 1px solid transparent;
}

.category-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 600;
    border-radius: var(--td-radius-small);
    background: var(--td-success-bg);
    color: var(--td-success-color);
}

.read-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    border-radius: var(--td-radius-default);
    background: var(--td-brand-color-1);
    color: var(--td-brand-color);
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s var(--td-ease);
}

.post-card:hover .read-more-btn {
    background: var(--td-brand-color);
    color: #FFFFFF;
}

/* ===== Sidebar ===== */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 84px;
}

.sidebar-card {
    background: var(--td-bg-color-container);
    border-radius: var(--td-radius-large);
    box-shadow: var(--td-shadow-1);
    border: 1px solid var(--td-border-level-1);
    padding: 20px;
}

.sidebar-card-title {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--td-text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-card-title .icon {
    color: var(--td-brand-color);
}

/* Search Box in Sidebar */
.search-box {
    display: flex;
    gap: 8px;
}

.search-input {
    flex: 1;
    height: 38px;
    padding: 0 12px;
    border: 1px solid var(--td-border-level-2);
    border-radius: var(--td-radius-default);
    background: var(--td-bg-color-secondary);
    color: var(--td-text-primary);
    font-size: 13px;
    outline: none;
    transition: all 0.2s var(--td-ease);
}

.search-input:focus {
    border-color: var(--td-brand-color);
    background: var(--td-bg-color-container);
    box-shadow: 0 0 0 3px var(--td-brand-color-1);
}

.search-submit-btn {
    height: 38px;
    padding: 0 14px;
    border-radius: var(--td-radius-default);
    border: none;
    background: var(--td-brand-color);
    color: #FFFFFF;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s var(--td-ease);
}

.search-submit-btn:hover {
    background: var(--td-brand-color-hover);
}

/* Category List */
.category-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.category-list li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 10px;
    border-radius: var(--td-radius-default);
    font-size: 13.5px;
    color: var(--td-text-secondary);
    font-weight: 500;
    transition: all 0.2s var(--td-ease);
}

.category-list li a:hover {
    background: var(--td-bg-color-secondary);
    color: var(--td-brand-color);
}

.category-list li a.active {
    background: var(--td-brand-color-1);
    color: var(--td-brand-color);
    font-weight: 600;
}

.category-count {
    background: var(--td-bg-color-component);
    color: var(--td-text-secondary);
    font-size: 12px;
    font-weight: 600;
    padding: 1px 8px;
    border-radius: 999px;
}

.category-list li a.active .category-count {
    background: var(--td-brand-color);
    color: #FFFFFF;
}

/* Link List */
.link-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.link-list li a {
    padding: 10px 12px;
    border-radius: var(--td-radius-default);
    border: 1px solid var(--td-border-level-1);
    background: var(--td-bg-color-secondary);
    color: var(--td-text-primary);
    font-size: 13.5px;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    gap: 3px;
    transition: all 0.2s var(--td-ease);
}

.link-list li a:hover {
    border-color: var(--td-brand-color);
    background: var(--td-brand-color-1);
    color: var(--td-brand-color);
    transform: translateX(2px);
}

.link-list .link-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.link-list .link-desc {
    font-size: 12px;
    font-weight: 400;
    color: var(--td-text-placeholder);
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border-radius: var(--td-radius-default);
    font-size: 13px;
    font-weight: 500;
    border: 1px solid var(--td-border-level-2);
    color: var(--td-text-primary);
    background: var(--td-bg-color-container);
    transition: all 0.2s var(--td-ease);
}

.pagination a:hover {
    border-color: var(--td-brand-color);
    color: var(--td-brand-color);
    background: var(--td-brand-color-1);
}

.pagination .current {
    background: var(--td-brand-color);
    border-color: var(--td-brand-color);
    color: #FFFFFF;
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(0, 82, 217, 0.25);
}

.pagination .disabled {
    opacity: 0.45;
    cursor: not-allowed;
    background: var(--td-bg-color-secondary);
}

/* ===== Article Page ===== */
.article-page {
    padding: 36px 0 64px;
    flex: 1;
}

.article-container {
    max-width: 820px;
    margin: 0 auto;
    padding: 0 24px;
}

.article-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: var(--td-radius-default);
    background: var(--td-bg-color-container);
    border: 1px solid var(--td-border-level-2);
    color: var(--td-text-primary);
    font-size: 13px;
    font-weight: 600;
    box-shadow: var(--td-shadow-1);
}

.back-link .icon svg {
    width: 15px;
    height: 15px;
}

.back-link:hover {
    border-color: var(--td-brand-color);
    color: var(--td-brand-color);
    background: var(--td-brand-color-1);
}

.article-card {
    background: var(--td-bg-color-container);
    border-radius: var(--td-radius-extra);
    box-shadow: var(--td-shadow-1);
    border: 1px solid var(--td-border-level-1);
    padding: 44px 48px;
}

.article-header {
    padding-bottom: 28px;
    margin-bottom: 32px;
    border-bottom: 1px solid var(--td-border-level-1);
}

.article-title {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 18px;
    line-height: 1.35;
    letter-spacing: -0.02em;
    color: var(--td-text-primary);
}

.article-meta {
    color: var(--td-text-placeholder);
    font-size: 13px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: center;
}

.article-meta .icon svg {
    width: 14px;
    height: 14px;
}

.article-meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.article-body {
    font-size: 16px;
    line-height: 1.85;
    color: var(--td-text-primary);
    overflow-wrap: break-word;
    word-break: break-word;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.article-body th,
.article-body td {
    border: 1px solid var(--td-border-level-1);
    padding: 10px 14px;
    text-align: left;
    font-size: 14px;
}

.article-body th {
    background: var(--td-bg-color-secondary);
    font-weight: 600;
}

.article-body h2 {
    font-size: 22px;
    font-weight: 700;
    margin: 32px 0 14px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--td-border-level-1);
}

.article-body h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 24px 0 10px;
}

.article-body p {
    margin-bottom: 18px;
}

.article-body ul,
.article-body ol {
    margin: 16px 0 20px;
    padding-left: 24px;
}

.article-body li {
    margin-bottom: 8px;
}

.article-body code {
    background: var(--td-bg-color-component);
    color: var(--td-brand-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: "JetBrains Mono", "SF Mono", Monaco, Consolas, monospace;
    font-size: 0.9em;
}

.article-body pre {
    background: #0F172A;
    color: #E2E8F0;
    padding: 18px 20px;
    border-radius: var(--td-radius-default);
    overflow-x: auto;
    margin: 20px 0;
    border: 1px solid #1E293B;
}

.article-body pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

.article-body blockquote {
    border-left: 4px solid var(--td-brand-color);
    padding: 12px 18px;
    margin: 20px 0;
    background: var(--td-brand-color-1);
    color: var(--td-text-secondary);
    border-radius: 0 var(--td-radius-default) var(--td-radius-default) 0;
}

.article-body img {
    border-radius: var(--td-radius-default);
    margin: 20px 0;
    box-shadow: var(--td-shadow-1);
}

/* Prev / Next Navigation Cards */
.article-nav-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 28px;
}

.article-nav-card {
    background: var(--td-bg-color-container);
    border: 1px solid var(--td-border-level-1);
    border-radius: var(--td-radius-large);
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    box-shadow: var(--td-shadow-1);
    transition: all 0.2s var(--td-ease);
}

.article-nav-card:hover {
    border-color: var(--td-brand-color);
    box-shadow: var(--td-shadow-2);
    transform: translateY(-2px);
}

.article-nav-card.next {
    text-align: right;
}

.article-nav-label {
    font-size: 12px;
    color: var(--td-text-placeholder);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.article-nav-card.next .article-nav-label {
    justify-content: flex-end;
}

.article-nav-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--td-text-primary);
    line-height: 1.4;
}

.article-nav-card:hover .article-nav-title {
    color: var(--td-brand-color);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--td-bg-color-container);
    border-top: 1px solid var(--td-border-level-1);
    padding: 28px 0;
    color: var(--td-text-secondary);
    font-size: 13px;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.site-footer a {
    color: var(--td-text-secondary);
    font-weight: 500;
}

.site-footer a:hover {
    color: var(--td-brand-color);
}

.icp-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: var(--td-radius-small);
    background: var(--td-bg-color-secondary);
    border: 1px solid var(--td-border-level-1);
    font-size: 12px;
}

/* ===== Back to Top Floating Button ===== */
.back-to-top {
    position: fixed;
    right: 28px;
    bottom: 28px;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--td-brand-color);
    color: #FFFFFF;
    border: none;
    box-shadow: 0 4px 14px rgba(0, 82, 217, 0.35);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.25s var(--td-ease);
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--td-brand-color-hover);
    transform: translateY(-2px);
}

/* ===== Empty State ===== */
.empty-state {
    background: var(--td-bg-color-container);
    border: 1px solid var(--td-border-level-1);
    border-radius: var(--td-radius-large);
    text-align: center;
    padding: 64px 24px;
    color: var(--td-text-secondary);
}

.empty-state-icon {
    margin-bottom: 16px;
    opacity: 0.45;
    color: var(--td-brand-color);
}

.empty-state-icon svg {
    width: 48px;
    height: 48px;
}

/* ===== Reduced Motion & Responsive ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Touch Devices: Disable sticky hover & enlarge tap feedback */
@media (hover: none) {
    .post-card:hover {
        transform: none;
        box-shadow: var(--td-shadow-1);
    }
    .post-card:active {
        transform: scale(0.992);
        border-color: var(--td-brand-color-3);
    }
    .article-nav-card:hover {
        transform: none;
    }
    .article-nav-card:active {
        background: var(--td-brand-color-1);
    }
}

@media (max-width: 860px) {
    .site-nav {
        display: none;
    }
    .mobile-only-btn {
        display: inline-flex;
    }
    .mobile-cat-pills {
        display: flex;
    }
    .sidebar {
        position: static;
    }
}

@media (max-width: 640px) {
    .container, .article-container {
        padding: 0 16px;
    }
    .site-header .container {
        height: 58px;
        gap: 10px;
    }
    .site-brand {
        font-size: 16px;
        gap: 8px;
        min-width: 0;
    }
    .site-brand-text {
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 160px;
    }
    .header-actions {
        padding-left: 0;
        border-left: none;
        gap: 6px;
    }
    .icon-btn {
        width: 40px;
        height: 40px;
    }
    .admin-entry-btn {
        width: 40px;
        height: 40px;
        padding: 0;
        justify-content: center;
    }
    .admin-entry-text {
        display: none;
    }
    .search-input {
        height: 42px;
        font-size: 16px; /* 防止 iOS Safari 聚焦自动缩放 */
    }
    .search-submit-btn {
        height: 42px;
        padding: 0 18px;
        font-size: 14px;
    }

    /* Hero Compact Mobile Layout */
    .hero-section {
        padding: 26px 0;
    }
    .hero-inner {
        gap: 20px;
    }
    .hero-profile {
        flex-direction: column;
        text-align: center;
        gap: 14px;
        min-width: 100%;
    }
    .hero-avatar,
    .hero-avatar-placeholder {
        width: 68px;
        height: 68px;
        border-radius: 16px;
        font-size: 28px;
    }
    .hero-info {
        text-align: center;
    }
    .hero-badge {
        font-size: 11px;
        margin-bottom: 8px;
    }
    .hero-name {
        font-size: 22px;
    }
    .hero-bio {
        font-size: 13.5px;
    }
    .hero-social {
        justify-content: center;
        margin-top: 12px;
        gap: 8px;
    }
    .hero-social a {
        padding: 8px 14px;
        font-size: 12.5px;
    }
    .hero-stats {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    .hero-stat-box {
        padding: 10px 14px;
        min-width: 0;
    }
    .hero-stat-num {
        font-size: 20px;
    }

    /* Main Content & Post Cards */
    .main-content {
        padding: 20px 0 44px;
    }
    .section-header {
        margin-bottom: 14px;
    }
    .section-title {
        font-size: 16px;
    }
    .post-list {
        gap: 12px;
    }
    .post-card {
        padding: 18px 16px;
        border-radius: var(--td-radius-default);
    }
    .post-card-meta {
        gap: 10px;
        font-size: 12px;
        margin-bottom: 8px;
    }
    .post-card-title {
        font-size: 17px;
        margin-bottom: 8px;
    }
    .post-card-excerpt {
        font-size: 14px;
        line-height: 1.65;
        margin-bottom: 14px;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .post-card-footer {
        padding-top: 12px;
    }
    .read-more-btn {
        padding: 7px 14px;
        font-size: 13px;
    }

    /* Pagination */
    .pagination {
        margin-top: 24px;
        gap: 6px;
    }
    .pagination a,
    .pagination span {
        min-width: 40px;
        height: 40px;
        font-size: 13.5px;
    }

    /* Article Detail Mobile */
    .article-page {
        padding: 20px 0 44px;
    }
    .article-top-bar {
        margin-bottom: 14px;
    }
    .back-link {
        padding: 8px 14px;
    }
    .article-card {
        padding: 22px 16px;
        border-radius: var(--td-radius-large);
    }
    .article-header {
        padding-bottom: 18px;
        margin-bottom: 20px;
    }
    .article-title {
        font-size: 21px;
        margin-bottom: 14px;
    }
    .article-meta {
        gap: 10px;
        font-size: 12px;
    }
    .article-body {
        font-size: 15.5px;
        line-height: 1.8;
    }
    .article-body h2 {
        font-size: 19px;
        margin: 24px 0 12px;
    }
    .article-body h3 {
        font-size: 16.5px;
        margin: 18px 0 8px;
    }
    .article-body pre {
        padding: 14px;
        font-size: 13px;
        margin: 16px -4px;
    }
    .article-nav-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-top: 20px;
    }
    .article-nav-card {
        padding: 14px 16px;
    }
    .article-nav-card.next {
        text-align: left;
    }
    .article-nav-card.next .article-nav-label {
        justify-content: flex-start;
    }

    /* Footer & Floating Action */
    .site-footer {
        padding: 22px 0 calc(22px + env(safe-area-inset-bottom));
    }
    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
    .back-to-top {
        right: 16px;
        bottom: calc(20px + env(safe-area-inset-bottom));
        width: 44px;
        height: 44px;
    }
}