/* ==================== 基础重置 ==================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --text-primary: #f0f0f5;
    --text-secondary: #8888a0;
    --text-muted: #55556a;
    --accent: #6c5ce7;
    --accent-light: #a29bfe;
    --accent-gradient: linear-gradient(135deg, #6c5ce7, #a29bfe);
    --card-bg: rgba(26, 26, 38, 0.55);
    --card-border: rgba(255, 255, 255, 0.06);
    --nav-blur: rgba(10, 10, 15, 0.8);
    --radius: 20px;
    --radius-sm: 12px;
    --transition: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* ==================== 亮色主题 (Apple Inspired) ==================== */
:root.light {
    --bg-primary: #f5f5f7;
    --bg-secondary: #ffffff;
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --text-muted: #aeaeb2;
    --accent: #6c5ce7;
    --accent-light: #8b7cf7;
    --accent-gradient: linear-gradient(135deg, #6c5ce7, #8b7cf7);
    --card-bg: rgba(255, 255, 255, 0.72);
    --card-border: rgba(0, 0, 0, 0.06);
    --nav-blur: rgba(255, 255, 255, 0.78);
}

:root.light .btn-outline {
    color: var(--text-primary);
    border-color: rgba(0, 0, 0, 0.1);
}

:root.light .btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(108, 92, 231, 0.06);
}

:root.light .skill-card:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(108, 92, 231, 0.12);
    border-color: rgba(108, 92, 231, 0.3);
}

:root.light .project-card:hover {
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 20px 60px rgba(108, 92, 231, 0.1);
    border-color: rgba(108, 92, 231, 0.25);
}

:root.light .hero-social a:hover {
    color: var(--accent);
    border-color: var(--accent);
}

:root.light .social-btn:hover {
    color: var(--accent);
    border-color: rgba(108, 92, 231, 0.3);
}

:root.light .game-trigger:hover {
    color: var(--accent);
}

:root.light .timeline-card:hover {
    border-color: rgba(108, 92, 231, 0.3);
}

:root.light .nav-link:hover,
:root.light .nav-link.active {
    color: var(--accent);
}

:root.light .photo-placeholder svg,
:root.light .skill-icon {
    color: #fff;
}

:root.light .skill-tags span,
:root.light .project-tags span {
    background: rgba(108, 92, 231, 0.06);
}

:root.light .pwd-modal {
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.12);
}

:root.light .deco-ring {
    border-color: rgba(0, 0, 0, 0.06);
}

:root.light .deco-ring-2 {
    border-color: rgba(108, 92, 231, 0.12);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: var(--bg-primary);
}

body {
    font-family: 'Inter', 'SF Pro Display', 'SF Pro Text', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

/* ==================== 粒子背景 ==================== */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

#page-content {
    position: relative;
    z-index: 2;
    opacity: 0;
    transition: opacity 0.2s ease;
}

#page-content.ready {
    opacity: 1;
}

a {
    color: inherit;
    text-decoration: none;
}

ul { list-style: none; }

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: var(--nav-blur);
    backdrop-filter: blur(24px) saturate(1.4);
    -webkit-backdrop-filter: blur(24px) saturate(1.4);
    padding: 14px 0;
    border-bottom: 1px solid var(--card-border);
    transform: translateZ(0);
    will-change: transform;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: var(--transition);
    border-radius: 2px;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link.active {
    color: var(--text-primary);
}

.nav-link:hover::after {
    width: 100%;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ==================== 主题切换按钮 ==================== */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    margin-right: 8px;
    backdrop-filter: blur(8px);
}

.theme-toggle:hover {
    color: var(--accent-light);
    border-color: var(--accent);
    transform: scale(1.08);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
    position: absolute;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
}

/* 深色模式（默认）：显示月亮图标（切换到亮色） */
.theme-icon-sun {
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

.theme-icon-moon {
    opacity: 1;
    transform: rotate(0) scale(1);
}

/* 亮色模式：显示太阳图标（切换到深色） */
:root.light .theme-icon-sun {
    opacity: 1;
    transform: rotate(0) scale(1);
}

:root.light .theme-icon-moon {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

/* ==================== Hero 区域 (Apple-Inspired) ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 140px 0 140px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(108,92,231,0.08), transparent 65%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(162,155,254,0.05), transparent 60%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    width: 100%;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-greeting {
    font-size: 1rem;
    color: var(--accent-light);
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 4px;
    text-transform: uppercase;
    opacity: 0.8;
}

.hero-name {
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.08;
    margin-bottom: 12px;
    letter-spacing: -2px;
    color: var(--text-primary);
}

.hero-title {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 28px;
    min-height: 2em;
}

.typing-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cursor {
    color: var(--accent);
    animation: blink 0.8s step-end infinite;
}

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

.hero-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 460px;
    margin-bottom: 40px;
    line-height: 1.8;
    opacity: 0.85;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.btn {
    display: inline-block;
    padding: 14px 34px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    letter-spacing: 0.3px;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(108,92,231,0.35);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1.5px solid rgba(255,255,255,0.12);
}

.btn-outline:hover {
    border-color: var(--accent);
    background: rgba(108,92,231,0.08);
    color: var(--accent-light);
    transform: translateY(-2px);
}

.hero-social {
    display: flex;
    gap: 12px;
}

.hero-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}

.hero-social a svg {
    width: 18px;
    height: 18px;
}

.hero-social a:hover {
    color: var(--accent-light);
    border-color: var(--accent);
    transform: translateY(-3px);
}

/* Hero 视觉区 — Apple 风格 */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.avatar-box {
    position: relative;
    width: 320px;
    height: 320px;
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4.2rem;
    font-weight: 700;
    color: #fff;
    position: relative;
    z-index: 2;
    animation: float 6s ease-in-out infinite;
    box-shadow: 0 24px 80px rgba(108,92,231,0.2);
    letter-spacing: -2px;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* Apple 风格装饰环 — 更小，不超出容器 */
.deco-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.08);
    pointer-events: none;
}

.deco-ring-1 {
    width: 360px;
    height: 360px;
    top: -20px;
    left: -20px;
    animation: spin 25s linear infinite;
}

.deco-ring-2 {
    width: 400px;
    height: 400px;
    top: -40px;
    left: -40px;
    animation: spin 35s linear infinite reverse;
    border-color: rgba(108,92,231,0.1);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.deco-ring-glow {
    position: absolute;
    width: 420px;
    height: 420px;
    top: -50px;
    left: -50px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(108,92,231,0.06), transparent 60%);
    pointer-events: none;
    z-index: 0;
}

/* Apple 风格滚动引导 — 简洁优雅 */
.scroll-hint {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 0.75rem;
    letter-spacing: 2px;
    font-weight: 500;
    opacity: 0;
    animation: fadeInScroll 1.6s ease 1.2s forwards;
    z-index: 3;
}

@keyframes fadeInScroll {
    0% { opacity: 0; transform: translateX(-50%) translateY(8px); }
    100% { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.scroll-hint span {
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 32px;
    background: linear-gradient(to bottom, var(--text-muted), transparent);
    animation: scrollLine 2s ease infinite;
}

@keyframes scrollLine {
    0% { transform: scaleY(1); opacity: 1; }
    100% { transform: scaleY(0.3); opacity: 0.2; }
}

/* ==================== 通用 Section 样式 ==================== */
.section {
    padding: 120px 0;
}

.section-alt {
    /* 背景与主背景统一，由 section 间其他视觉元素自然分隔 */
}

.section-title {
    font-size: clamp(2rem, 4.5vw, 2.8rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 10px;
    letter-spacing: -1.5px;
    line-height: 1.15;
}

.section-subtitle {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 5px;
    margin-bottom: 72px;
    font-weight: 500;
}

/* ==================== 关于我 ==================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 1.05rem;
    line-height: 1.8;
}

.about-text strong {
    color: var(--accent-light);
}

/* ==================== Pretext 杂志式排版 ==================== */
.about-magazine {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.about-magazine-col p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    margin: 0;
    text-align: left;
}

.drop-cap {
    float: left;
    font-size: 3.8em;
    line-height: 0.75;
    padding-right: 8px;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-stats {
    display: flex;
    gap: 48px;
    margin-top: 36px;
    padding-top: 36px;
    border-top: 1px solid var(--card-border);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 2.6rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    letter-spacing: -1px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 6px;
    font-weight: 500;
}

.photo-frame {
    width: 100%;
    max-width: 380px;
    margin: 0 auto;
    aspect-ratio: 1;
    border-radius: var(--radius);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    overflow: hidden;
}

.photo-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.photo-placeholder svg {
    width: 64px;
    height: 64px;
    opacity: 0.3;
}

/* ==================== 时间线 (Apple 风格) ==================== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: linear-gradient(to bottom, var(--accent), var(--card-border), transparent);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.timeline-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -33px;
    top: 6px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--accent-gradient);
    border: 2px solid var(--bg-secondary);
    z-index: 1;
    box-shadow: 0 0 0 3px var(--bg-secondary);
}

.timeline-card {
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 24px 28px;
    transition: var(--transition);
}

.timeline-card:hover {
    border-color: rgba(108, 92, 231, 0.2);
    transform: translateX(4px);
}

.timeline-period {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-light);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 6px;
}

.timeline-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 2px;
    letter-spacing: -0.2px;
}

.timeline-company {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.timeline-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    opacity: 0.85;
}

/* ==================== 技能 ==================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.skill-card {
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 36px 32px;
    transition: var(--transition);
}

.skill-card:hover {
    border-color: rgba(108,92,231,0.3);
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(108,92,231,0.12);
    background: var(--bg-secondary);
}

.skill-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: #fff;
}

.skill-icon svg {
    width: 24px;
    height: 24px;
}

.skill-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 18px;
    letter-spacing: -0.3px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tags span {
    font-size: 0.8rem;
    padding: 6px 14px;
    border-radius: 20px;
    background: rgba(108,92,231,0.08);
    color: var(--accent-light);
    border: 1px solid rgba(108,92,231,0.1);
}

/* ==================== 项目 ==================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.project-card:hover {
    border-color: rgba(108,92,231,0.3);
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(108,92,231,0.12);
    background: var(--bg-secondary);
}

.project-thumb {
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.project-thumb-text {
    font-size: 1.8rem;
    font-weight: 800;
    color: rgba(255,255,255,0.3);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.project-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.project-info {
    padding: 28px 32px;
}

.project-info h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.3px;
}

.project-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 18px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.project-tags span {
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 6px;
    background: rgba(108,92,231,0.08);
    color: var(--accent-light);
    border: 1px solid rgba(108,92,231,0.12);
}

.project-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-light);
    transition: var(--transition);
}

.project-link:hover {
    color: var(--accent);
}

/* ==================== 联系 ==================== */
.contact-content {
    text-align: center;
    max-width: 520px;
    margin: 0 auto;
}

.contact-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
    line-height: 1.8;
}

.contact-email {
    display: inline-block;
    font-size: clamp(1.3rem, 3vw, 2rem);
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 36px;
    transition: var(--transition);
    letter-spacing: -0.5px;
}

.contact-email:hover {
    opacity: 0.75;
    transform: scale(1.02);
}

.contact-social {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.social-btn {
    padding: 12px 28px;
    border-radius: 50px;
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    letter-spacing: 0.3px;
}

.social-btn:hover {
    color: var(--accent-light);
    border-color: rgba(108,92,231,0.3);
    background: rgba(108,92,231,0.08);
    transform: translateY(-3px);
}

/* ==================== 页脚 ==================== */
.footer {
    padding: 32px 0;
    text-align: center;
    border-top: 1px solid var(--card-border);
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-main {
    margin-bottom: 6px;
}

.footer-meta {
    display: flex;
    justify-content: center;
    gap: 16px;
    font-size: 0.75rem;
    opacity: 0.6;
}

.footer-meta span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.heart {
    color: #f5576c;
    display: inline-block;
    animation: heartbeat 1.4s ease infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* ==================== 密码弹窗 ==================== */
.pwd-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1003;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.pwd-overlay.active {
    opacity: 1;
    visibility: visible;
}

.pwd-modal {
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 40px 36px 32px;
    width: 380px;
    max-width: 90vw;
    text-align: center;
    transform: scale(0.92) translateY(20px);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 24px 80px rgba(0,0,0,0.5);
}

.pwd-overlay.active .pwd-modal {
    transform: scale(1) translateY(0);
}

.pwd-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(108,92,231,0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--accent-light);
}

.pwd-icon svg {
    width: 28px;
    height: 28px;
}

.pwd-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.pwd-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.5;
}

.pwd-input {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    text-align: center;
    transition: var(--transition);
    outline: none;
    letter-spacing: 2px;
}

.pwd-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(108,92,231,0.15);
}

.pwd-input::placeholder {
    letter-spacing: normal;
    font-size: 0.9rem;
}

.pwd-error {
    font-size: 0.85rem;
    color: #f5576c;
    margin-top: 10px;
    min-height: 1.4em;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.pwd-error.show {
    opacity: 1;
}

.pwd-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.pwd-actions .btn {
    flex: 1;
    text-align: center;
}

/* ==================== 编辑面板 ==================== */
.edit-toggle {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 998;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--accent-gradient);
    border: none;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(108,92,231,0.4);
    transition: var(--transition);
}

.edit-toggle svg {
    width: 24px;
    height: 24px;
}

.edit-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 28px rgba(108,92,231,0.6);
}

.edit-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.edit-overlay.active {
    opacity: 1;
    visibility: visible;
}

.edit-panel {
    position: fixed;
    top: 0;
    right: -480px;
    width: 460px;
    height: 100vh;
    z-index: 1002;
    background: var(--bg-secondary);
    border-left: 1px solid var(--card-border);
    display: flex;
    flex-direction: column;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.edit-panel.open {
    right: 0;
}

.edit-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--card-border);
}

.edit-panel-header h3 {
    font-size: 1.15rem;
    font-weight: 700;
}

.edit-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.6rem;
    cursor: pointer;
    padding: 0 4px;
    transition: var(--transition);
}

.edit-close:hover {
    color: var(--text-primary);
}

.edit-panel-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px 24px;
}

.edit-panel-body::-webkit-scrollbar {
    width: 6px;
}

.edit-panel-body::-webkit-scrollbar-thumb {
    background: var(--card-border);
    border-radius: 3px;
}

.edit-section {
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--card-border);
}

.edit-section:last-child {
    border-bottom: none;
}

.edit-section h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--accent-light);
}

.edit-field {
    margin-bottom: 14px;
}

.edit-field label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.edit-field input,
.edit-field textarea {
    width: 100%;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    transition: var(--transition);
}

.edit-field input:focus,
.edit-field textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(108,92,231,0.15);
}

.edit-field textarea {
    resize: vertical;
    min-height: 80px;
}

/* 云端同步开关 */
.cloud-sync-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.cloud-sync-status {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 22px;
    cursor: pointer;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--card-border);
    border-radius: 22px;
    transition: var(--transition);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    left: 3px;
    bottom: 3px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--text-secondary);
    transition: var(--transition);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--accent);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(18px);
    background: #fff;
}

.edit-avatar-upload {
    display: flex;
    gap: 16px;
    align-items: center;
}

.edit-avatar-upload input[type="file"] {
    flex: 1;
    padding: 8px;
    font-size: 0.85rem;
}

.edit-avatar-preview {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    color: var(--text-muted);
    text-align: center;
    overflow: hidden;
    flex-shrink: 0;
}

.edit-avatar-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.edit-add-btn {
    width: 100%;
    padding: 10px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px dashed var(--card-border);
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 8px;
    font-family: inherit;
}

.edit-add-btn:hover {
    border-color: var(--accent);
    color: var(--accent-light);
}

.edit-skill-item,
.edit-timeline-item,
.edit-project-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 14px;
    margin-bottom: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
}

.edit-skill-item input,
.edit-timeline-item input,
.edit-project-item input {
    width: 100%;
    padding: 8px 12px;
    border-radius: 6px;
    background: var(--bg-primary);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: inherit;
}

.edit-skill-item input:focus,
.edit-project-item input:focus {
    outline: none;
    border-color: var(--accent);
}

/* 项目封面图上传 */
.proj-cover-upload {
    display: flex;
    gap: 10px;
    align-items: center;
}

.proj-cover-upload input[type="file"] {
    flex: 1;
    padding: 6px 8px;
    font-size: 0.8rem;
}

.proj-cover-preview {
    width: 80px;
    height: 50px;
    border-radius: 6px;
    background: var(--bg-primary);
    border: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    color: var(--text-muted);
    text-align: center;
    overflow: hidden;
    flex-shrink: 0;
}

.proj-cover-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.edit-remove-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(245,87,108,0.15);
    border: none;
    color: #f5576c;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.edit-remove-btn:hover {
    background: #f5576c;
    color: #fff;
}

.data-migrate-actions {
    display: flex;
    gap: 10px;
}

.data-migrate-actions .btn {
    flex: 1;
    text-align: center;
    font-size: 0.85rem;
    padding: 10px 16px;
}

.edit-panel-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--card-border);
    display: flex;
    gap: 12px;
}

.edit-panel-footer .btn {
    flex: 1;
    text-align: center;
}

/* ==================== 2048 游戏 ==================== */
.game-trigger {
    cursor: pointer;
    transition: var(--transition);
}

.game-trigger:hover {
    color: var(--accent-light);
}

.game-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.game-overlay.active {
    opacity: 1;
    visibility: visible;
}

.game-modal {
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 28px 32px 24px;
    width: 480px;
    max-width: 94vw;
    transform: scale(0.92) translateY(20px);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 32px 100px rgba(0,0,0,0.5);
}

.game-overlay.active .game-modal {
    transform: scale(1) translateY(0);
}

.game-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.game-title-row {
    display: flex;
    align-items: center;
    gap: 16px;
}

.game-header h3 {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -1px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.game-scores {
    display: flex;
    gap: 8px;
}

.game-score-box {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 6px 14px;
    text-align: center;
    min-width: 68px;
}

.game-score-label {
    display: block;
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    font-weight: 600;
}

.game-score-value {
    display: block;
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.game-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.8rem;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
    padding: 0 2px;
}

.game-close:hover {
    color: var(--text-primary);
}

.game-body {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.game-grid {
    position: relative;
    width: 380px;
    height: 380px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 6px;
    flex-shrink: 0;
}

.grid-bg {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    width: 100%;
    height: 100%;
}

.grid-cell {
    background: rgba(255,255,255,0.04);
    border-radius: 6px;
}

.grid-tiles {
    position: absolute;
    inset: 6px;
}

.game-tile {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    border-radius: 6px;
    transition: left 0.12s ease, top 0.12s ease, transform 0.12s ease;
    z-index: 1;
    user-select: none;
}

.game-tile.pop {
    animation: tilePop 0.2s ease;
}

@keyframes tilePop {
    0% { transform: scale(0); opacity: 0; }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}

.game-tile.merged {
    animation: tileMerge 0.2s ease;
    z-index: 2;
}

@keyframes tileMerge {
    0% { transform: scale(1); }
    50% { transform: scale(1.15); }
    100% { transform: scale(1); }
}

.game-message {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    z-index: 10;
}

.game-message-text {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.game-footer-actions {
    display: flex;
    gap: 10px;
    margin-top: 16px;
}

.game-footer-actions .btn {
    padding: 10px 28px;
    font-size: 0.85rem;
}

.game-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 12px;
}

@media (max-width: 520px) {
    .game-modal {
        padding: 20px 16px 18px;
    }

    .game-grid {
        width: 280px;
        height: 280px;
    }

    .game-header h3 {
        font-size: 1.2rem;
    }

    .game-score-box {
        min-width: 56px;
        padding: 4px 10px;
    }

    .game-score-value {
        font-size: 1rem;
    }

    .game-message-text {
        font-size: 1.3rem;
    }
}

/* 移动端编辑面板 */
@media (max-width: 520px) {
    .edit-panel {
        width: 100%;
        right: -100%;
    }

    .edit-toggle {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }

    .edit-toggle svg {
        width: 20px;
        height: 20px;
    }
}

/* ==================== 滚动入场动画 ==================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== 响应式 ==================== */
@media (max-width: 968px) {
    .hero {
        padding: 120px 0 100px;
    }

    .scroll-hint {
        bottom: 32px;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-social {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .avatar-box {
        width: 200px;
        height: 200px;
    }

    .deco-ring-1 {
        width: 240px;
        height: 240px;
        top: -20px;
        left: -20px;
    }

    .deco-ring-2 {
        width: 280px;
        height: 280px;
        top: -40px;
        left: -40px;
    }

    .deco-ring-glow {
        width: 300px;
        height: 300px;
        top: -50px;
        left: -50px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .about-stats {
        justify-content: center;
    }

    .about-photo {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        height: 100vh;
        background: var(--bg-secondary);
        backdrop-filter: blur(24px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 40px;
        transition: var(--transition);
        border-left: 1px solid var(--card-border);
        z-index: 999;
    }

    .nav-links.open {
        right: 0;
    }

    .nav-link {
        font-size: 1.2rem;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
    }

    .section {
        padding: 80px 0;
    }

    .section-subtitle {
        margin-bottom: 44px;
    }

    .about-stats {
        gap: 32px;
    }

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

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

    .timeline {
        padding-left: 32px;
    }

    .timeline-dot {
        left: -26px;
        width: 9px;
        height: 9px;
    }

    .timeline-card {
        padding: 18px 20px;
    }
}

@media (max-width: 480px) {
    .hero-name {
        font-size: 2.2rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}