/* ================================================
   CYBER BLOG - 赛博朋克风格 CSS
   前台全局样式
   ================================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Rajdhani:wght@300;400;500;600;700&family=Share+Tech+Mono&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

/* ==================== CSS 变量 ==================== */
:root {
    --cyan: #00fff0;
    --pink: #ff2a6d;
    --purple: #d300c5;
    --green: #05ffa1;
    --yellow: #f5f740;
    --blue: #05d9e8;
    --dark-bg: #0a0a12;
    --darker-bg: #06060c;
    --card-bg: rgba(10, 10, 25, 0.85);
    --card-border: rgba(0, 255, 240, 0.15);
    --text-primary: #e0e0e8;
    --text-secondary: #8888a0;
    --text-dim: #555570;
    --glow-cyan: 0 0 10px rgba(0,255,240,0.5), 0 0 40px rgba(0,255,240,0.15);
    --glow-pink: 0 0 10px rgba(255,42,109,0.5), 0 0 40px rgba(255,42,109,0.15);
    --glow-purple: 0 0 10px rgba(211,0,197,0.5), 0 0 40px rgba(211,0,197,0.15);
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Rajdhani', 'Noto Sans SC', sans-serif;
    --font-mono: 'Share Tech Mono', monospace;
}

/* ==================== Reset & Base ==================== */
*, *::before, *::after {
    margin: 0; padding: 0; box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--cyan) var(--darker-bg);
}

[id] {
    scroll-margin-top: 80px;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--darker-bg); }
::-webkit-scrollbar-thumb { background: var(--cyan); border-radius: 3px; }

body {
    font-family: var(--font-body);
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
    min-height: 100vh;
}

/* 扫描线覆盖层 */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 255, 240, 0.015) 2px,
        rgba(0, 255, 240, 0.015) 4px
    );
    pointer-events: none;
    z-index: 9999;
}

a {
    color: var(--cyan);
    text-decoration: none;
    transition: all 0.3s ease;
    text-shadow: 0 0 5px rgba(0,255,240,0.3);
}

a:hover {
    color: var(--pink);
    text-shadow: 0 0 10px rgba(255,42,109,0.5);
}

/* ==================== 背景粒子网格 ==================== */
#bg-grid {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0,255,240,0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(211,0,197,0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(255,42,109,0.02) 0%, transparent 50%),
        linear-gradient(180deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
}

/* 浮动粒子 */
.particle {
    position: fixed;
    width: 2px; height: 2px;
    background: var(--cyan);
    border-radius: 50%;
    opacity: 0;
    pointer-events: none;
    animation: float-particle linear infinite;
}

@keyframes float-particle {
    0% { opacity: 0; transform: translateY(100vh) scale(0); }
    10% { opacity: 0.6; }
    90% { opacity: 0.6; }
    100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

/* ==================== 导航栏 ==================== */
.cyber-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 0 2rem;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(6, 6, 12, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
    transition: all 0.3s ease;
}

.cyber-nav.scrolled {
    height: 60px;
    box-shadow: 0 2px 30px rgba(0,255,240,0.08);
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.1rem;
    white-space: nowrap;
    font-weight: 700;
    color: var(--cyan);
    text-transform: none;
    letter-spacing: 1px;
    text-shadow: var(--glow-cyan);
    position: relative;
}

.nav-logo::after {
    content: '_';
    animation: blink-cursor 1s step-end infinite;
}

@keyframes blink-cursor {
    50% { opacity: 0; }
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: none;
    letter-spacing: 2px;
    padding: 0.4rem 0;
    position: relative;
    text-shadow: none;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--cyan);
    text-shadow: 0 0 8px rgba(0,255,240,0.4);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 1px;
    background: var(--cyan);
    box-shadow: 0 0 8px var(--cyan);
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* 移动端菜单 */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 5px;
}

.menu-toggle span {
    width: 25px; height: 2px;
    background: var(--cyan);
    transition: all 0.3s;
    box-shadow: 0 0 5px var(--cyan);
}

/* ==================== Hero 区域 ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 2rem;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    color: var(--cyan);
    text-shadow: var(--glow-cyan), 0 0 80px rgba(0,255,240,0.2);
    text-transform: none;
    letter-spacing: 8px;
    margin-bottom: 1.5rem;
    animation: glitch-title 8s infinite;
    position: relative;
}

@keyframes glitch-title {
    0%, 95%, 100% { transform: translate(0); }
    96% { transform: translate(-2px, 1px); text-shadow: var(--glow-pink), -2px 0 var(--pink); }
    97% { transform: translate(2px, -1px); text-shadow: var(--glow-cyan), 2px 0 var(--cyan); }
    98% { transform: translate(-1px, -1px); }
}

.hero-subtitle {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    letter-spacing: 1px;
}

.hero-subtitle .typing-cursor {
    display: inline-block;
    width: 2px; height: 1.2em;
    background: var(--cyan);
    margin-left: 3px;
    vertical-align: text-bottom;
    animation: blink-cursor 0.8s step-end infinite;
}

.hero-line {
    width: 200px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    margin: 1.5rem auto;
    box-shadow: 0 0 10px rgba(0,255,240,0.3);
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    animation: bounce-down 2s infinite;
}

@keyframes bounce-down {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ==================== 主内容 ==================== */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Section 标题 */
.section-header {
    margin-bottom: 2.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--card-border);
    position: relative;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--cyan);
    text-transform: none;
    letter-spacing: 4px;
    text-shadow: 0 0 10px rgba(0,255,240,0.3);
}

.section-header::before {
    content: '// ';
    color: var(--pink);
    font-family: var(--font-mono);
}

.section-header .line-decoration {
    position: absolute;
    bottom: -1px; left: 0;
    width: 80px; height: 2px;
    background: var(--cyan);
    box-shadow: 0 0 10px var(--cyan);
}

/* ==================== 文章卡片 ==================== */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.post-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 4px;
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
}

.post-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--cyan), var(--purple), var(--pink));
    opacity: 0;
    transition: opacity 0.4s;
}

.post-card:hover {
    border-color: rgba(0,255,240,0.3);
    transform: translateY(-4px);
    box-shadow: 0 10px 40px rgba(0,255,240,0.08);
}

.post-card:hover::before { opacity: 1; }

.post-card-cover {
    width: 100%; height: 180px;
    background: linear-gradient(135deg, rgba(0,255,240,0.08), rgba(211,0,197,0.08));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    overflow: hidden;
}

.post-card-cover img {
    width: 100%; height: 100%;
    object-fit: cover;
}

.post-card-body {
    padding: 1.5rem;
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.8rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.post-card-meta .tag {
    padding: 2px 8px;
    border: 1px solid rgba(0,255,240,0.2);
    color: var(--cyan);
    font-size: 0.65rem;
    text-transform: none;
}

.post-card-title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.6rem;
    letter-spacing: 1px;
    line-height: 1.4;
    transition: color 0.3s;
}

.post-card:hover .post-card-title {
    color: var(--cyan);
    text-shadow: 0 0 10px rgba(0,255,240,0.3);
}

.post-card-summary {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(0,255,240,0.06);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-dim);
}

.post-card-footer .read-more {
    color: var(--cyan);
    text-transform: none;
    letter-spacing: 2px;
    font-size: 0.7rem;
}

/* 置顶标签 */
.top-badge {
    display: inline-block;
    padding: 1px 6px;
    background: var(--pink);
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 2px;
    text-transform: none;
    margin-right: 5px;
    box-shadow: 0 0 10px rgba(255,42,109,0.4);
    animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 5px rgba(255,42,109,0.4); }
    50% { box-shadow: 0 0 15px rgba(255,42,109,0.6); }
}

/* ==================== 分类侧栏 ==================== */
.content-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 2rem;
    padding-top: 2rem;
}

.sidebar {
    position: sticky;
    top: 90px;
    height: fit-content;
}

.sidebar-widget {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 4px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.sidebar-widget h3 {
    font-family: var(--font-display);
    font-size: 0.8rem;
    color: var(--cyan);
    text-transform: none;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--card-border);
}

.sidebar-widget h3::before {
    content: '> ';
    color: var(--pink);
    font-family: var(--font-mono);
}

.cat-list {
    list-style: none;
}

.cat-list li {
    margin-bottom: 0.3rem;
}

.cat-list a {
    display: flex;
    justify-content: space-between;
    padding: 0.4rem 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all 0.3s;
    text-shadow: none;
    border-left: 2px solid transparent;
}

.cat-list a:hover,
.cat-list a.active {
    color: var(--cyan);
    border-left-color: var(--cyan);
    background: rgba(0,255,240,0.03);
}

.cat-list .count {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-dim);
}

/* ==================== 文章详情 ==================== */
.post-detail {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.post-detail-header {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--card-border);
}

.post-detail-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
    text-transform: none;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.post-detail-meta {
    display: flex;
    gap: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    flex-wrap: wrap;
}

.post-detail-meta span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.post-detail-cover {
    width: 100%;
    margin-bottom: 2rem;
    border-radius: 4px;
    border: 1px solid var(--card-border);
    overflow: hidden;
}

.post-detail-cover img {
    width: 100%;
    display: block;
}

/* Markdown 内容样式 */
.post-content {
    font-size: 1.05rem;
    line-height: 1.9;
    color: var(--text-primary);
}

.post-content h1, .post-content h2, .post-content h3,
.post-content h4, .post-content h5, .post-content h6 {
    font-family: var(--font-display);
    color: var(--cyan);
    margin: 2rem 0 1rem;
    text-transform: none;
    letter-spacing: 2px;
}

.post-content h1 { font-size: 1.8rem; }
.post-content h2 { font-size: 1.5rem; border-bottom: 1px solid var(--card-border); padding-bottom: 0.5rem; }
.post-content h3 { font-size: 1.2rem; color: var(--pink); }

.post-content p {
    margin-bottom: 1.2rem;
}

.post-content strong {
    color: var(--cyan);
    text-shadow: 0 0 5px rgba(0,255,240,0.2);
}

.post-content em {
    color: var(--text-secondary);
    font-style: italic;
}

.post-content a {
    color: var(--cyan);
    border-bottom: 1px solid rgba(0,255,240,0.3);
    transition: all 0.3s;
}

.post-content a:hover {
    color: var(--pink);
    border-color: var(--pink);
}

.post-content code {
    font-family: var(--font-mono);
    background: rgba(0,255,240,0.06);
    color: var(--green);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.9em;
    border: 1px solid rgba(0,255,240,0.1);
}

.post-content pre {
    background: rgba(6,6,12,0.9);
    border: 1px solid var(--card-border);
    border-radius: 4px;
    padding: 1.2rem 1.5rem;
    margin: 1.5rem 0;
    overflow-x: auto;
    position: relative;
}

.post-content pre::before {
    content: 'TERMINAL';
    position: absolute;
    top: 0; right: 0;
    padding: 2px 10px;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--text-dim);
    background: rgba(0,255,240,0.05);
    border-left: 1px solid var(--card-border);
    border-bottom: 1px solid var(--card-border);
    letter-spacing: 2px;
}

.post-content pre code {
    background: none;
    color: var(--cyan);
    padding: 0;
    border: none;
    font-size: 0.85rem;
    line-height: 1.7;
}

.post-content blockquote {
    border-left: 3px solid var(--cyan);
    background: rgba(0,255,240,0.03);
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    color: var(--text-secondary);
    font-style: italic;
}

.post-content ul, .post-content ol {
    padding-left: 1.5rem;
    margin-bottom: 1.2rem;
}

.post-content li {
    margin-bottom: 0.4rem;
    color: var(--text-secondary);
}

.post-content li::marker {
    color: var(--cyan);
}

.post-content hr {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    margin: 2.5rem 0;
    box-shadow: 0 0 10px rgba(0,255,240,0.2);
}

.post-content img.markdown-img {
    max-width: 100%;
    border-radius: 4px;
    border: 1px solid var(--card-border);
    margin: 1.5rem 0;
}

/* ==================== 分页 ==================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.pagination a, .pagination span {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    transition: all 0.3s;
    text-shadow: none;
    letter-spacing: 1px;
}

.pagination a:hover {
    border-color: var(--cyan);
    color: var(--cyan);
    background: rgba(0,255,240,0.05);
    box-shadow: 0 0 10px rgba(0,255,240,0.1);
}

.pagination .current {
    border-color: var(--cyan);
    color: var(--cyan);
    background: rgba(0,255,240,0.1);
    box-shadow: 0 0 15px rgba(0,255,240,0.2);
}

/* ==================== 联系表单 ==================== */
.contact-section {
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.cyber-form .form-group {
    margin-bottom: 1.5rem;
}

.cyber-form label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--cyan);
    text-transform: none;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.cyber-form input,
.cyber-form textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(6,6,12,0.8);
    border: 1px solid var(--card-border);
    border-radius: 3px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all 0.3s;
    outline: none;
}

.cyber-form input:focus,
.cyber-form textarea:focus {
    border-color: var(--cyan);
    box-shadow: 0 0 15px rgba(0,255,240,0.15);
}

.cyber-form textarea {
    min-height: 150px;
    resize: vertical;
}

/* ==================== 按钮 ==================== */
.cyber-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 2rem;
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-transform: none;
    border: 1px solid var(--cyan);
    color: var(--cyan);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    text-shadow: none;
}

.cyber-btn::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,255,240,0.1), transparent);
    transition: left 0.5s;
}

.cyber-btn:hover {
    background: rgba(0,255,240,0.1);
    box-shadow: var(--glow-cyan);
}

.cyber-btn:hover::before { left: 100%; }

.cyber-btn-pink {
    border-color: var(--pink);
    color: var(--pink);
}

.cyber-btn-pink:hover {
    background: rgba(255,42,109,0.1);
    box-shadow: var(--glow-pink);
}

/* ==================== Flash 消息 ==================== */
.flash-container {
    position: fixed;
    top: 80px; right: 1rem;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.flash-msg {
    padding: 0.8rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    letter-spacing: 1px;
    border-radius: 3px;
    border-left: 3px solid;
    animation: slide-in 0.3s ease, fade-out 0.3s ease 3.7s;
    max-width: 350px;
}

.flash-msg.success {
    background: rgba(5,255,161,0.08);
    border-color: var(--green);
    color: var(--green);
}

.flash-msg.error {
    background: rgba(255,42,109,0.08);
    border-color: var(--pink);
    color: var(--pink);
}

@keyframes slide-in {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes fade-out {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* ==================== Footer ==================== */
.cyber-footer {
    border-top: 1px solid var(--card-border);
    padding: 2rem;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 2px;
    margin-top: 4rem;
}

.cyber-footer a {
    color: var(--cyan);
}

/* ==================== 404 ==================== */
.error-page {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}

.error-code {
    font-family: var(--font-display);
    font-size: 8rem;
    font-weight: 900;
    color: var(--cyan);
    text-shadow: var(--glow-cyan), 0 0 100px rgba(0,255,240,0.3);
    letter-spacing: 10px;
    line-height: 1;
}

.error-msg {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 1.5rem 0 2.5rem;
    letter-spacing: 1px;
}

/* ==================== 响应式 ==================== */
@media (max-width: 900px) {
    .content-layout {
        grid-template-columns: 1fr;
    }
    .sidebar {
        position: static;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .cyber-nav { padding: 0 1rem; }

    .menu-toggle { display: flex; }

    .nav-links {
        position: fixed;
        top: 70px; left: 0; right: 0;
        flex-direction: column;
        background: rgba(6,6,12,0.98);
        border-bottom: 1px solid var(--card-border);
        padding: 1rem 2rem;
        gap: 0.5rem;
        transform: translateY(-110%);
        transition: transform 0.3s ease;
    }

    .nav-links.open { transform: translateY(0); }

    .posts-grid {
        grid-template-columns: 1fr;
    }

    .sidebar {
        grid-template-columns: 1fr;
    }

    .hero-title {
        letter-spacing: 1px;
    }
}

@media (max-width: 480px) {
    .hero-title { letter-spacing: 2px; }
    .section-header h2 { font-size: 1.2rem; letter-spacing: 2px; }
    .post-detail { padding: 1rem; }
    .post-detail-title { font-size: 1.4rem; letter-spacing: 1px; }
    .post-content { font-size: 0.95rem; }
    .post-content h2 { font-size: 1.2rem; }
    .post-content pre { padding: 0.8rem 1rem; font-size: 0.8rem; }
    .flash-container { left: 0.5rem; right: 0.5rem; }
    .flash-msg { max-width: 100%; font-size: 0.75rem; }
}

/* ==================== 个人资料卡片（侧栏） ==================== */
.profile-card {
    text-align: center;
    padding-bottom: 1.5rem;
}
.profile-card .sidebar-widget-inner {
    padding: 0;
}
.profile-avatar-wrap {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 1rem;
    border: 2px solid var(--cyan);
    box-shadow: 0 0 15px rgba(0,255,240,0.2);
    position: relative;
}
.profile-avatar-img, .profile-avatar-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.profile-avatar-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0,255,240,0.1), rgba(211,0,197,0.1));
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--cyan);
}
.profile-info { padding: 0 0.5rem; }
.profile-title {
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--cyan);
    letter-spacing: 2px;
    text-transform: none;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 8px rgba(0,255,240,0.3);
}
.profile-bio {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.75rem;
}
.profile-link {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--pink);
    letter-spacing: 2px;
    text-transform: none;
}

/* ==================== About 页面 ==================== */
.about-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    align-items: start;
}
.about-hero { text-align: center; }
.about-avatar-wrap {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 1.5rem;
    border: 3px solid var(--cyan);
    box-shadow: 0 0 30px rgba(0,255,240,0.2);
    position: relative;
}
.about-avatar-img, .about-avatar-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.about-avatar-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0,255,240,0.08), rgba(211,0,197,0.08));
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 700;
    color: var(--cyan);
}
.about-name {
    font-family: var(--font-display);
    font-size: 1.2rem;
    color: var(--cyan);
    letter-spacing: 1px;
    text-transform: none;
    text-shadow: 0 0 10px rgba(0,255,240,0.3);
    margin-bottom: 1rem;
}
.about-contacts {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.about-contact-item {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}
.about-contact-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-dim);
    letter-spacing: 2px;
    text-transform: none;
}
.about-contact-item a,
.about-contact-item span {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-shadow: none;
    word-break: break-all;
}
.about-details .about-section {
    margin-bottom: 2rem;
}
.about-section-title {
    font-family: var(--font-display);
    font-size: 0.9rem;
    color: var(--pink);
    letter-spacing: 1px;
    text-transform: none;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--card-border);
}
.about-bio {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.9;
}

/* ==================== 技能标签 ==================== */
.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.skill-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.3rem 0.8rem;
    border: 1px solid rgba(0,255,240,0.25);
    color: var(--cyan);
    background: rgba(0,255,240,0.04);
    border-radius: 2px;
    letter-spacing: 1px;
    transition: all 0.3s;
}
.skill-tag:hover {
    background: rgba(0,255,240,0.1);
    box-shadow: 0 0 8px rgba(0,255,240,0.2);
}
.skill-tag-sm {
    font-size: 0.65rem;
    padding: 0.2rem 0.5rem;
    border-color: rgba(0,255,240,0.15);
    color: var(--text-secondary);
    background: rgba(0,255,240,0.02);
}

/* ==================== 时间线 ==================== */
.timeline {
    position: relative;
    padding-left: 2rem;
    margin-top: 1.5rem;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--cyan), var(--purple), var(--pink));
    opacity: 0.3;
}
.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-marker {
    position: absolute;
    left: -2rem;
    top: 0.3rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--dark-bg);
    border: 2px solid var(--cyan);
    box-shadow: 0 0 8px rgba(0,255,240,0.4);
    transform: translateX(-5px);
}
.timeline-content {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 4px;
    padding: 1.5rem;
    transition: all 0.3s;
}
.timeline-content:hover {
    border-color: rgba(0,255,240,0.3);
    box-shadow: 0 5px 20px rgba(0,255,240,0.05);
}
.timeline-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}
.timeline-logo {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    object-fit: cover;
    border: 1px solid var(--card-border);
    flex-shrink: 0;
}
.timeline-company {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--cyan);
    letter-spacing: 1px;
}
.timeline-position {
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-dim);
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
}
.timeline-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0.5rem;
}
.timeline-achievements {
    list-style: none;
    padding: 0;
    margin-top: 0.5rem;
}
.timeline-achievements li {
    position: relative;
    padding-left: 1.2rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0.25rem;
}
.timeline-achievements li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--green);
    font-family: var(--font-mono);
    font-weight: 700;
}

/* ==================== About 页移动端适配 ==================== */
@media (max-width: 768px) {
    .about-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .about-hero { order: -1; }
    .about-avatar-wrap { width: 150px; height: 150px; }
    .about-avatar-placeholder { font-size: 3rem; }
    .about-contacts {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    .about-contact-item { text-align: center; }
}

@media (max-width: 480px) {
    .about-avatar-wrap { width: 120px; height: 120px; }
    .about-avatar-placeholder { font-size: 2.5rem; }
    .timeline-content { padding: 1rem; }
    .timeline-header { gap: 0.75rem; }
    .about-page { padding-left: 1rem !important; padding-right: 1rem !important; }
    .skill-tag { font-size: 0.68rem; padding: 0.2rem 0.6rem; }
}

/* ==================== 首页优化 ==================== */
.hero {
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 100px 20px 60px;
    position: relative;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
}

/* 文章卡片优化 */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.post-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.post-card:hover {
    transform: translateY(-4px);
    border-color: var(--cyan);
    box-shadow: 0 10px 40px rgba(0, 255, 240, 0.1);
}

.post-card-cover {
    height: 180px;
    background: linear-gradient(135deg, rgba(0, 255, 240, 0.05), rgba(211, 0, 197, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    overflow: hidden;
}

.post-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.post-card:hover .post-card-cover img {
    transform: scale(1.05);
}

.post-card-body {
    padding: 20px;
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.post-card-meta .tag {
    background: rgba(0, 255, 240, 0.1);
    color: var(--cyan);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
}

.post-card-meta .top-badge {
    background: rgba(255, 42, 109, 0.2);
    color: var(--pink);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.post-card-title {
    display: block;
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.4;
}

.post-card-title:hover {
    color: var(--cyan);
}

.post-card-summary {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.read-more {
    color: var(--cyan);
    font-family: var(--font-mono);
}

/* 分页优化 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
    padding: 20px 0;
}

.pagination a, .pagination span {
    padding: 10px 16px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all 0.3s;
}

.pagination a:hover {
    background: rgba(0, 255, 240, 0.1);
    border-color: var(--cyan);
    color: var(--cyan);
}

.pagination .current {
    background: rgba(0, 255, 240, 0.15);
    border-color: var(--cyan);
    color: var(--cyan);
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-dim);
}

.empty-state .code {
    font-family: var(--font-display);
    font-size: 4rem;
    color: var(--cyan);
    opacity: 0.3;
}

/* 侧边栏优化 */
.content-layout {
    display: flex;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.posts-area {
    flex: 1;
    min-width: 0;
}

.sidebar-area {
    width: 280px;
    flex-shrink: 0;
}

.sidebar-widget {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
}

.widget-title {
    font-size: 1rem;
    color: var(--cyan);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--card-border);
}

/* Footer优化 */
.cyber-footer {
    text-align: center;
    padding: 40px 20px;
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--card-border);
    margin-top: 60px;
}

.cyber-footer p {
    margin: 0 0 8px;
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* 响应式调整 */
@media (max-width: 900px) {
    .content-layout {
        flex-direction: column;
    }
    
    .sidebar-area {
        width: 100%;
    }
    
    .posts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .hero {
        min-height: 60vh;
        padding-top: 80px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
}