/* ===== CSS 变量 - 主题系统 ===== */
:root {
    /* 亮色主题 */
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;
    --bg-gradient-1: #667eea;
    --bg-gradient-2: #764ba2;
    --bg-gradient-3: #f093fb;
    --bg-gradient-4: #f5576c;
    
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.3);
    --glass-shadow: rgba(0, 0, 0, 0.1);
    
    --accent-primary: #667eea;
    --accent-secondary: #764ba2;
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    
    --card-bg: rgba(255, 255, 255, 0.7);
    --input-bg: rgba(255, 255, 255, 0.5);
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

[data-theme="dark"] {
    /* 暗色主题 */
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-gradient-1: #1a1a2e;
    --bg-gradient-2: #16213e;
    --bg-gradient-3: #0f3460;
    --bg-gradient-4: #533483;
    
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --text-muted: #a0aec0;
    
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    
    --accent-primary: #818cf8;
    --accent-secondary: #a78bfa;
    --accent-gradient: linear-gradient(135deg, #818cf8 0%, #a78bfa 100%);
    
    --card-bg: rgba(30, 30, 50, 0.7);
    --input-bg: rgba(255, 255, 255, 0.08);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    background-color: #0f0f1a;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

html[data-theme="light"] {
    background-color: #f0f4f8;
}

html[data-theme="dark"] {
    background-color: #0f0f1a;
}

/* ===== 背景动画 ===== */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: var(--bg-primary);
    transform: translateZ(0);
    will-change: transform;
}

.bg-gradient {
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: 
        radial-gradient(circle at 20% 80%, var(--bg-gradient-1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, var(--bg-gradient-2) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, var(--bg-gradient-3) 0%, transparent 40%),
        radial-gradient(circle at 60% 60%, var(--bg-gradient-4) 0%, transparent 40%);
    opacity: 0.3;
    animation: gradientMove 20s ease-in-out infinite;
    backface-visibility: hidden;
    will-change: transform;
}

@keyframes gradientMove {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(2%, 2%) rotate(5deg); }
    50% { transform: translate(-1%, 3%) rotate(-5deg); }
    75% { transform: translate(3%, -2%) rotate(3deg); }
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: var(--accent-gradient);
    opacity: 0.1;
    filter: blur(60px);
    animation: float 15s ease-in-out infinite;
}

.shape-1 {
    width: 400px;
    height: 400px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 300px;
    height: 300px;
    top: 60%;
    right: 10%;
    animation-delay: -3s;
}

.shape-3 {
    width: 250px;
    height: 250px;
    bottom: 10%;
    left: 30%;
    animation-delay: -6s;
}

.shape-4 {
    width: 350px;
    height: 350px;
    top: 30%;
    right: 30%;
    animation-delay: -9s;
}

.shape-5 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 50%;
    animation-delay: -12s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.9); }
    75% { transform: translate(20px, 40px) scale(1.05); }
}

/* ===== 毛玻璃效果 ===== */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

.glass-btn {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    transition: all var(--transition-normal);
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-3px);
    box-shadow: 0 10px 40px var(--glass-shadow);
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5%;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    height: 60px;
    background: var(--card-bg);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo {
    font-size: 1.8rem;
    animation: pulse 2s ease-in-out infinite;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 10px;
}

.nav-link {
    position: relative;
    padding: 10px 20px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: 25px;
    transition: all var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-primary);
    background: var(--glass-bg);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
    border-radius: 2px;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 30px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* ===== 主题切换按钮 ===== */
.theme-toggle {
    position: relative;
    width: 45px;
    height: 45px;
    border: none;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    cursor: pointer;
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 1px solid var(--glass-border);
}

.theme-toggle:hover {
    transform: rotate(15deg) scale(1.1);
}

.theme-toggle i {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.2rem;
    transition: all var(--transition-normal);
}

.theme-toggle .fa-sun {
    color: #fbbf24;
    opacity: 1;
    transform: translate(-50%, -50%) rotate(0deg);
}

.theme-toggle .fa-moon {
    color: #818cf8;
    opacity: 0;
    transform: translate(-50%, -50%) rotate(-90deg);
}

[data-theme="dark"] .theme-toggle .fa-sun {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(90deg);
}

[data-theme="dark"] .theme-toggle .fa-moon {
    opacity: 1;
    transform: translate(-50%, -50%) rotate(0deg);
}

/* ===== 移动端菜单 ===== */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 45px;
    height: 45px;
    border: none;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: 10px;
    cursor: pointer;
    gap: 5px;
    border: 1px solid var(--glass-border);
}

.menu-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

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

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

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

.mobile-menu {
    position: fixed;
    top: 80px;
    left: 5%;
    right: 5%;
    padding: 20px;
    border-radius: 20px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-20px);
    transition: all var(--transition-normal);
    z-index: 999;
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.mobile-nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mobile-nav-links .nav-link {
    display: block;
    padding: 15px 20px;
    text-align: center;
    border-radius: 15px;
}

/* ===== Hero 区域 ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 100px 5% 50px;
    position: relative;
}

.hero-content {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 50px;
    max-width: 1200px;
    width: 100%;
}

.hero-text {
    flex: 1;
}

.greeting {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.name {
    font-size: 4rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    line-height: 1.2;
}

.title {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.description {
    display: flex;
    flex-direction: column;
    gap: 5px;
    font-size: 1.08rem;
    color: var(--text-muted);
    max-width: 650px;
    margin-bottom: 30px;
    line-height: 1.75;
}

.desc-line {
    display: block;
}

.desc-line:first-child {
    color: var(--text-secondary);
    font-weight: 700;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.about-actions {
    justify-content: center;
    align-items: center;
    margin-bottom: 32px;
}

.about-actions .btn {
    min-width: 158px;
    justify-content: center;
}

.hero-highlights {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    width: min(420px, 100%);
    margin-bottom: 28px;
}

.highlight-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border-radius: 999px;
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 600;
    min-height: 46px;
    text-align: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--accent-primary);
}

.btn-secondary:hover {
    background: var(--accent-primary);
    color: white;
}

.hero-image {
    flex: 0 0 auto;
    width: min(360px, 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    padding-top: 10px;
}

.avatar-container {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
    border-radius: 50%;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.avatar-glow {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: 50%;
    background: var(--accent-gradient);
    opacity: 0.3;
    filter: blur(30px);
    z-index: -1;
    animation: glowPulse 3s ease-in-out infinite;
}

.hero-note {
    width: 100%;
    padding: 22px 24px;
    border-radius: 24px;
}

.hero-note-label {
    display: inline-block;
    margin-bottom: 12px;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 0.82rem;
    font-weight: 700;
}

.hero-note strong {
    display: block;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.hero-note p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.05); }
}

/* ===== 滚动指示器 ===== */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 0.9rem;
    animation: bounce 2s ease-in-out infinite;
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 15px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 1; top: 8px; }
    50% { opacity: 0; top: 20px; }
}

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

/* ===== 通用区域样式 ===== */
.section {
    padding: 100px 5%;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    text-align: center;
}

.title-icon {
    position: relative;
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 16px;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 1.08rem;
    box-shadow: 0 14px 30px rgba(102, 126, 234, 0.22);
}

.title-icon::after {
    content: '';
    position: absolute;
    inset: 1px;
    border-radius: inherit;
    border: 1px solid rgba(255, 255, 255, 0.26);
    pointer-events: none;
}

.title-icon i {
    position: relative;
    z-index: 1;
}

/* ===== 关于我 ===== */
.about-content {
    display: flex;
    justify-content: center;
}

.about-card {
    max-width: 900px;
    padding: 50px;
    border-radius: 30px;
}

.about-text {
    margin-bottom: 40px;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    border-radius: 20px;
    transition: all var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ===== 技能 ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.skill-card {
    display: flex;
    flex-direction: column;
    min-height: 190px;
    padding: 22px;
    border-radius: 24px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 18px 36px rgba(102, 126, 234, 0.18);
}

.skill-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    background: var(--accent-gradient);
    border-radius: 14px;
    margin-bottom: 16px;
    color: white;
}

.skill-name {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 5px;
    font-size: 1.12rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.skill-subtitle {
    color: var(--accent-primary);
    font-size: 0.72em;
    font-weight: 700;
    line-height: 1.15;
    opacity: 0.92;
}

.topic-header {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 10px;
}

.topic-header .skill-name {
    margin-bottom: 0;
}

.topic-badge {
    flex: 0 0 auto;
    padding: 4px 9px;
    border-radius: 999px;
    background: rgba(102, 126, 234, 0.14);
    color: var(--accent-primary);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: lowercase;
}

.topic-progress-wrap {
    margin-top: 14px;
}

.tutorial-entry-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    width: fit-content;
    margin-top: auto;
    padding: 8px 11px;
    border-radius: 999px;
    background: rgba(102, 126, 234, 0.14);
    color: var(--accent-primary);
    font-size: 0.82rem;
    font-weight: 700;
}

.topic-progress-text {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.topic-progress {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 10px;
    width: 0;
    transition: width 1.5s ease-out;
}

.roadmap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 10px;
}

.feedback-stack {
    display: grid;
    gap: 16px;
}

.feedback-panel {
    padding: 20px;
    border-radius: 20px;
}

.feedback-panel-head {
    margin-bottom: 12px;
}

.feedback-panel-head h3 {
    margin-bottom: 6px;
    font-size: 1.2rem;
    color: var(--text-primary);
}

.feedback-panel-head p {
    color: var(--text-muted);
    font-size: 0.88rem;
}

.roadmap-card {
    position: relative;
    padding: 14px;
    border-radius: 16px;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.roadmap-card:hover {
    transform: translateY(-8px);
}

.roadmap-step {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    border-radius: 11px;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 800;
    box-shadow: 0 12px 28px rgba(102, 126, 234, 0.28);
}

.roadmap-card h3 {
    margin-bottom: 6px;
    font-size: 0.98rem;
}

.roadmap-card p {
    margin-bottom: 8px;
    color: var(--text-muted);
    font-size: 0.82rem;
    line-height: 1.45;
}

.roadmap-points {
    padding-left: 16px;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.roadmap-points li + li {
    margin-top: 4px;
}

.skill-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.skill-bar {
    height: 8px;
    background: var(--input-bg);
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 10px;
    width: 0;
    transition: width 1.5s ease-out;
}

/* ===== 项目展示 ===== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
    justify-items: center;
    gap: 16px;
}

.feedback-entry {
    position: relative;
    isolation: isolate;
    width: min(156px, 100%);
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 16px;
    overflow: hidden;
    border-radius: 50%;
    color: var(--text-primary);
    text-align: center;
    text-decoration: none;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feedback-entry::before {
    content: '';
    position: absolute;
    inset: 10px;
    z-index: -1;
    border-radius: inherit;
    background:
        radial-gradient(circle at 35% 25%, rgba(255, 255, 255, 0.22), transparent 36%),
        radial-gradient(circle at 70% 75%, rgba(129, 140, 248, 0.24), transparent 42%);
}

.feedback-entry:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: 0 18px 36px rgba(102, 126, 234, 0.2);
}

.feedback-entry-code {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.feedback-entry-title {
    max-width: 112px;
    color: var(--text-primary);
    font-size: 0.92rem;
    line-height: 1.25;
}

.feedback-entry-desc {
    max-width: 112px;
    display: -webkit-box;
    overflow: hidden;
    color: var(--text-muted);
    font-size: 0.72rem;
    line-height: 1.35;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.feedback-entry-action {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--accent-primary);
    font-size: 0.72rem;
    font-weight: 700;
}

.project-card {
    border-radius: 25px;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-10px);
}

.project-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--accent-gradient);
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    transition: opacity var(--transition-normal);
}

.project-card:hover .project-overlay {
    opacity: 0.9;
}

.project-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    color: var(--accent-primary);
    border-radius: 50%;
    font-size: 1.2rem;
    text-decoration: none;
    transform: translateY(20px);
    opacity: 0;
    transition: all var(--transition-normal);
}

.project-card:hover .project-link {
    transform: translateY(0);
    opacity: 1;
}

.project-link:hover {
    transform: scale(1.1);
}

.project-info {
    padding: 25px;
}

.project-eyebrow {
    display: inline-flex;
    margin-bottom: 10px;
    color: var(--accent-primary);
    font-size: 0.84rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.project-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

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

.project-tag {
    padding: 5px 12px;
    background: var(--accent-gradient);
    color: white;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* ===== 联系 ===== */
.contact-content {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
    align-items: stretch;
    max-width: 960px;
    margin: 0 auto;
}

.contact-info {
    position: relative;
    overflow: hidden;
    padding: 28px;
    border-radius: 32px;
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1.2fr);
    gap: 24px;
    align-items: center;
}

.contact-info::before {
    content: '';
    position: absolute;
    inset: 18px;
    z-index: -1;
    border-radius: inherit;
    background:
        radial-gradient(circle at 18% 24%, rgba(129, 140, 248, 0.24), transparent 34%),
        radial-gradient(circle at 82% 72%, rgba(167, 139, 250, 0.18), transparent 38%);
}

.contact-intro {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-kicker {
    display: inline-flex;
    width: fit-content;
    margin-bottom: 12px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(102, 126, 234, 0.14);
    color: var(--accent-primary);
    font-size: 0.78rem;
    font-weight: 700;
}

.contact-info h3 {
    font-size: 1.55rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.contact-intro p {
    color: var(--text-muted);
    margin-bottom: 0;
    font-size: 0.94rem;
    line-height: 1.65;
}

.contact-groups {
    padding: 18px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.055);
    border: 1px solid var(--glass-border);
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(2, minmax(130px, 1fr));
    justify-items: center;
    gap: 14px;
}

.qq-contact-panel {
    padding: 22px;
    border-radius: 18px;
    background: var(--input-bg);
    border: 1px solid var(--glass-border);
}

.contact-method-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 14px;
    color: var(--text-primary);
    font-size: 0.98rem;
    font-weight: 700;
}

.contact-method-title i {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #fff;
}

.qq-group-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
    max-width: 500px;
    margin: 0 auto;
}

.qq-group-card {
    position: relative;
    isolation: isolate;
    width: 100%;
    min-height: 118px;
    aspect-ratio: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    padding: 14px;
    overflow: hidden;
    border-radius: 22px;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025)),
        var(--glass-bg);
    border: 1px solid var(--glass-border);
    text-align: left;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.qq-group-card::before {
    content: '';
    display: none;
    position: absolute;
    top: 12px;
    right: 12px;
    width: 42px;
    height: 42px;
    z-index: 0;
    border-radius: 16px;
    background: var(--accent-gradient);
    opacity: 0.16;
}

.qq-group-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 16px 32px rgba(102, 126, 234, 0.18);
}

.qq-group-info {
    position: relative;
    z-index: 1;
    display: grid;
    justify-items: start;
    gap: 5px;
}

.qq-group-info span {
    display: block;
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 600;
}

.qq-group-info strong {
    display: block;
    color: var(--text-primary);
    font-size: 1.02rem;
    line-height: 1.2;
}

.qq-open-link {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: auto;
    padding: 7px 10px;
    border-radius: 999px;
    background: rgba(102, 126, 234, 0.16);
    color: var(--accent-primary);
    text-decoration: none;
    font-size: 0.74rem;
    font-weight: 700;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.qq-open-link:hover {
    background: var(--accent-gradient);
    color: #fff;
    transform: translateY(-2px);
}

.purchase-card {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
    gap: 10px;
    width: fit-content;
    max-width: 100%;
    padding: 11px 14px;
    border-radius: 999px;
    background: var(--accent-gradient);
    color: #fff;
    text-decoration: none;
    transition: all var(--transition-normal);
    margin-top: 18px;
}

.purchase-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 36px rgba(102, 126, 234, 0.35);
}

.purchase-card i {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.18);
}

.purchase-card span {
    font-size: 0.82rem;
    opacity: 0.85;
}

.purchase-card strong {
    margin-left: 0;
    font-size: 0.88rem;
    word-break: break-all;
}

.purchase-card-inline {
    margin-top: 0;
    margin-left: auto;
    flex: 0 0 auto;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--input-bg);
    border-radius: 15px;
    text-decoration: none;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.contact-method:hover {
    background: var(--accent-gradient);
    color: white;
    transform: translateX(10px);
}

.contact-method i {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border-radius: 10px;
    font-size: 1.2rem;
}

.contact-method:hover i {
    background: rgba(255, 255, 255, 0.2);
}

.contact-form {
    padding: 40px;
    border-radius: 25px;
}

.form-group {
    position: relative;
    margin-bottom: 30px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: var(--input-bg);
    border: 2px solid transparent;
    border-radius: 15px;
    font-size: 1rem;
    color: var(--text-primary);
    transition: all var(--transition-normal);
    font-family: inherit;
    resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: var(--card-bg);
}

.form-group label {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
    pointer-events: none;
    transition: all var(--transition-normal);
}

.form-group textarea ~ label {
    top: 20px;
    transform: none;
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -10px;
    left: 15px;
    font-size: 0.85rem;
    padding: 0 5px;
    background: var(--card-bg);
    color: var(--accent-primary);
    border-radius: 5px;
}

/* 发送按钮：始终使用主色背景 + 白字，避免白天玻璃态变白导致看不清 */
.submit-btn {
    width: 100%;
    justify-content: center;
    border: none;
    font-size: 1.1rem;
    background: var(--accent-gradient) !important;
    color: #fff !important;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.submit-btn:hover {
    background: linear-gradient(135deg, #7c8ef5 0%, #8b6bb0 100%) !important;
    color: #fff !important;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.45);
}

[data-theme="dark"] .submit-btn:hover {
    background: linear-gradient(135deg, #9ca8fa 0%, #a78bfa 100%) !important;
    color: #fff !important;
}

/* ===== 教程详情占位页 ===== */
.tutorial-page {
    width: calc(100vw - 32px);
    max-width: 1080px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 18px;
    margin: 0 auto;
    padding: 80px 0;
}

.tutorial-guide-page {
    max-width: 1160px;
}

.tutorial-back {
    width: fit-content;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(102, 126, 234, 0.14);
    color: var(--accent-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 700;
}

.tutorial-shell {
    padding: 48px;
    border-radius: 32px;
}

.tutorial-shell h1 {
    margin: 16px 0 18px;
    font-size: clamp(2rem, 7vw, 3.4rem);
    line-height: 1.12;
}

.tutorial-shell p {
    max-width: 660px;
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.8;
}

.tutorial-guide-shell {
    display: grid;
    gap: 24px;
}

.tutorial-guide-shell > .topic-badge,
.tutorial-consensus-shell > .topic-badge {
    width: fit-content;
    justify-self: start;
}

.tutorial-lead {
    margin-top: -8px;
    max-width: 780px;
    font-size: 1.05rem;
}

.register-tip {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
    align-items: start;
    padding: 20px 22px;
    border-radius: 24px;
    background:
        linear-gradient(155deg, rgba(129, 140, 248, 0.14), rgba(36, 39, 61, 0.74)),
        rgba(18, 21, 35, 0.9);
    border: 1px solid rgba(143, 156, 255, 0.16);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.register-tip i {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    background: var(--accent-gradient);
    color: #fff;
}

.register-tip strong,
.register-tip span {
    display: block;
}

.register-tip strong {
    margin-bottom: 7px;
    color: var(--text-primary);
    font-size: 1.04rem;
    line-height: 1.35;
}

.register-tip span {
    color: var(--text-secondary);
    line-height: 1.75;
}

.register-tip b {
    color: var(--text-primary);
}

.register-hero-grid {
    max-width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.register-hero-card {
    min-width: 0;
    display: grid;
    gap: 16px;
    padding: 22px;
    border-radius: 28px;
    background:
        linear-gradient(155deg, rgba(129, 140, 248, 0.14), rgba(36, 39, 61, 0.74)),
        rgba(18, 21, 35, 0.9);
    border: 1px solid rgba(143, 156, 255, 0.16);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.register-hero-card-account {
    position: relative;
    overflow: hidden;
}

.register-hero-card-account::after {
    content: "";
    position: absolute;
    inset: auto -54px -76px auto;
    width: 210px;
    height: 210px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.18), rgba(167, 139, 250, 0));
    pointer-events: none;
}

.register-hero-card-purchase {
    background:
        linear-gradient(155deg, rgba(94, 234, 212, 0.07), rgba(36, 39, 61, 0.72)),
        rgba(18, 21, 35, 0.88);
    border-color: rgba(94, 234, 212, 0.1);
}

.register-hero-head {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
    align-items: start;
}

.register-hero-icon {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 1rem;
}

.register-hero-copy strong {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 1.1rem;
    line-height: 1.35;
}

.register-hero-copy p {
    max-width: none;
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.75;
}

.register-hero-link {
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 15px 16px;
    border-radius: 20px;
    text-decoration: none;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal), background var(--transition-normal);
}

.register-hero-link:hover {
    transform: translateY(-2px);
}

.register-hero-link-primary {
    background: linear-gradient(135deg, rgba(122, 132, 255, 0.96), rgba(164, 132, 255, 0.92));
    color: #fff;
    box-shadow: 0 18px 36px rgba(110, 103, 255, 0.22);
}

.register-hero-link-primary span {
    font-size: 1.04rem;
    font-weight: 900;
}

.register-hero-link-primary i {
    opacity: 0.9;
}

.register-hero-link-secondary {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(143, 156, 255, 0.14);
    color: var(--text-primary);
}

.register-hero-link-secondary:hover {
    border-color: rgba(143, 156, 255, 0.24);
    box-shadow: 0 14px 30px rgba(60, 64, 110, 0.18);
}

.register-hero-link-secondary span {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 800;
}

.register-hero-link-secondary strong {
    margin-left: auto;
    color: #fff;
    font-size: 1rem;
}

.register-device-strip {
    max-width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    padding: 14px 16px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.register-device-strip span {
    color: var(--text-secondary);
    line-height: 1.65;
    font-size: 0.96rem;
}

.register-device-strip b {
    color: var(--text-primary);
}

.register-steps {
    display: grid;
    gap: 18px;
    margin-top: 2px;
}

.register-step {
    display: grid;
    grid-template-columns: minmax(340px, 0.95fr) minmax(0, 1.05fr);
    gap: 22px;
    align-items: start;
    padding: 22px;
    border-radius: 24px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)),
        rgba(20, 23, 38, 0.88);
    border: 1px solid rgba(255, 255, 255, 0.065);
}

.register-step-copy {
    min-width: 0;
    max-width: 470px;
    align-self: stretch;
    display: grid;
    align-content: center;
    padding: 6px 0;
}

.register-step-num {
    display: inline-flex;
    justify-self: start;
    align-self: start;
    margin-bottom: 10px;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 900;
}

.register-step h2 {
    margin-bottom: 10px;
    color: var(--text-primary);
    font-size: clamp(1.18rem, 2.1vw, 1.42rem);
    line-height: 1.22;
}

.register-step p {
    max-width: none;
    margin-bottom: 0;
    font-size: 0.96rem;
    line-height: 1.75;
}

.register-step-copy > p {
    padding: 14px 16px;
    border-radius: 16px;
    background:
        linear-gradient(145deg, rgba(129, 140, 248, 0.055), rgba(255, 255, 255, 0.02)),
        rgba(255, 255, 255, 0.022);
    border: 1px solid rgba(129, 140, 248, 0.08);
}

.register-step-copy p + p {
    margin-top: 12px;
}

.register-small-note {
    padding: 12px 14px;
    border-radius: 16px;
    background: rgba(129, 140, 248, 0.075);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.terminal-menu-card {
    position: relative;
    align-self: start;
    overflow: hidden;
    padding: 12px;
    border-radius: 22px;
    background:
        radial-gradient(circle at 16% 12%, rgba(129, 140, 248, 0.22), transparent 34%),
        radial-gradient(circle at 92% 90%, rgba(94, 234, 212, 0.1), transparent 32%),
        linear-gradient(145deg, rgba(129, 140, 248, 0.12), rgba(20, 23, 38, 0.92));
    border: 1px solid rgba(143, 156, 255, 0.16);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.06),
        0 18px 40px rgba(0, 0, 0, 0.26);
    color: #dbeafe;
    min-height: 260px;
}

.terminal-menu-card-compact {
    min-height: 0;
}

.terminal-config-card {
    min-height: 190px;
    background:
        radial-gradient(circle at 14% 10%, rgba(52, 211, 153, 0.16), transparent 30%),
        radial-gradient(circle at 88% 16%, rgba(96, 165, 250, 0.16), transparent 32%),
        linear-gradient(145deg, rgba(129, 140, 248, 0.11), rgba(20, 23, 38, 0.92));
    border-color: rgba(143, 156, 255, 0.2);
}

.terminal-menu-top {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 7px;
    height: 40px;
    padding: 0 14px;
    border-radius: 14px 14px 0 0;
    background: rgba(7, 12, 28, 0.74);
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.terminal-menu-top span {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: rgba(148, 163, 184, 0.8);
}

.terminal-menu-top span:nth-child(1) {
    background: #f87171;
}

.terminal-menu-top span:nth-child(2) {
    background: #fbbf24;
}

.terminal-menu-top span:nth-child(3) {
    background: #34d399;
}

.terminal-menu-top strong {
    margin-left: 6px;
    color: rgba(226, 232, 240, 0.82);
    font-size: 0.82rem;
    letter-spacing: 0;
    font-weight: 900;
}

.terminal-menu-body {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 9px;
    padding: 16px;
    border-radius: 0 0 14px 14px;
    background:
        linear-gradient(180deg, rgba(15, 23, 42, 0.88), rgba(3, 7, 18, 0.78));
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-top: 0;
}

.terminal-menu-title {
    color: #f8fafc;
    font-size: 0.98rem;
    font-weight: 900;
}

.terminal-menu-row {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
    min-height: 38px;
    padding: 8px 10px;
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.72);
    border: 1px solid rgba(148, 163, 184, 0.13);
}

.terminal-menu-row b {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 8px;
    background: rgba(148, 163, 184, 0.14);
    color: #bfdbfe;
    font-size: 0.82rem;
}

.terminal-menu-row span {
    min-width: 0;
    color: #dbeafe;
    font-size: 0.92rem;
    font-weight: 800;
}

.terminal-menu-command-row {
    grid-template-columns: minmax(74px, auto) minmax(0, 1fr);
}

.terminal-menu-command-row b {
    width: auto;
    min-width: 66px;
    padding: 0 10px;
    font-family: Consolas, "SFMono-Regular", "Microsoft YaHei", monospace;
}

.terminal-menu-active {
    background: rgba(129, 140, 248, 0.2);
    border-color: rgba(165, 180, 252, 0.42);
}

.terminal-menu-active b {
    background: var(--accent-gradient);
    color: #fff;
}

.terminal-menu-hint,
.terminal-log-line {
    padding: 8px 10px;
    border-radius: 10px;
    background: rgba(15, 23, 42, 0.54);
    color: rgba(226, 232, 240, 0.82);
    font-family: Consolas, "SFMono-Regular", "Microsoft YaHei", monospace;
    font-size: 0.84rem;
    line-height: 1.5;
}

.terminal-log-ok {
    color: #bbf7d0;
}

.terminal-control-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 3px;
}

.terminal-control-row span {
    padding: 7px 9px;
    border-radius: 999px;
    background: rgba(129, 140, 248, 0.16);
    border: 1px solid rgba(165, 180, 252, 0.2);
    color: #e0e7ff;
    font-size: 0.78rem;
    font-weight: 800;
}

.terminal-config-line {
    display: grid;
    grid-template-columns: auto minmax(86px, auto) minmax(0, 1fr);
    align-items: center;
    gap: 9px;
    min-height: 40px;
    padding: 9px 10px;
    border-radius: 12px;
    background: rgba(15, 23, 42, 0.68);
    border: 1px solid rgba(148, 163, 184, 0.14);
}

.terminal-config-line b {
    color: #f8fafc;
    font-size: 0.9rem;
    line-height: 1.35;
}

.terminal-config-line em {
    min-width: 0;
    color: rgba(203, 213, 225, 0.82);
    font-size: 0.8rem;
    font-style: normal;
    line-height: 1.45;
}

.terminal-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 24px;
    padding: 0 8px;
    border-radius: 999px;
    color: #07111f;
    font-size: 0.74rem;
    font-weight: 900;
    white-space: nowrap;
}

.terminal-tag-ok {
    background: linear-gradient(135deg, #34d399, #86efac);
}

.terminal-tag-info {
    background: linear-gradient(135deg, #60a5fa, #93c5fd);
}

.terminal-tag-warn {
    background: linear-gradient(135deg, #f59e0b, #fde68a);
}

.terminal-tag-muted {
    background: linear-gradient(135deg, #94a3b8, #e2e8f0);
}

.terminal-pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.terminal-pill {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-family: Consolas, "SFMono-Regular", "Microsoft YaHei", monospace;
    font-size: 0.82rem;
    font-weight: 900;
}

.terminal-pill-blue {
    background: rgba(96, 165, 250, 0.18);
    color: #bfdbfe;
}

.terminal-pill-red {
    background: rgba(248, 113, 113, 0.18);
    color: #fecaca;
}

.terminal-pill-violet {
    background: rgba(167, 139, 250, 0.18);
    color: #ddd6fe;
}

.terminal-pill-green {
    background: rgba(52, 211, 153, 0.18);
    color: #bbf7d0;
}

.terminal-pill-muted {
    background: rgba(148, 163, 184, 0.16);
    color: #e2e8f0;
}

.terminal-dimension-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}

.terminal-dimension-item {
    display: grid;
    gap: 7px;
    min-width: 0;
    padding: 11px 10px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-dimension-item span {
    color: rgba(226, 232, 240, 0.76);
    font-size: 0.76rem;
    font-weight: 900;
}

.terminal-dimension-item b {
    min-width: 0;
    color: #fff;
    font-family: Consolas, "SFMono-Regular", "Microsoft YaHei", monospace;
    font-size: 0.86rem;
    line-height: 1.25;
    overflow-wrap: anywhere;
}

.terminal-dimension-overworld {
    background: rgba(52, 211, 153, 0.14);
    border-color: rgba(52, 211, 153, 0.22);
}

.terminal-dimension-nether {
    background: rgba(248, 113, 113, 0.14);
    border-color: rgba(248, 113, 113, 0.22);
}

.terminal-dimension-end {
    background: rgba(167, 139, 250, 0.15);
    border-color: rgba(167, 139, 250, 0.24);
}

.terminal-dimension-dm {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 10px;
    align-items: start;
    padding: 11px 12px;
    border-radius: 14px;
    background: rgba(96, 165, 250, 0.12);
    border: 1px solid rgba(147, 197, 253, 0.2);
}

.terminal-dimension-dm div {
    min-width: 0;
    display: grid;
    gap: 4px;
}

.terminal-dimension-dm b,
.terminal-dimension-dm em {
    min-width: 0;
    overflow-wrap: anywhere;
}

.terminal-dimension-dm b {
    color: #dbeafe;
    font-family: Consolas, "SFMono-Regular", "Microsoft YaHei", monospace;
    font-size: 0.9rem;
}

.terminal-dimension-dm em {
    color: rgba(219, 234, 254, 0.78);
    font-size: 0.8rem;
    font-style: normal;
    line-height: 1.45;
}

.terminal-input-preview {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 13px;
    background: rgba(2, 6, 23, 0.62);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.terminal-input-preview span {
    color: rgba(226, 232, 240, 0.68);
    font-size: 0.78rem;
    font-weight: 900;
}

.terminal-input-preview b {
    min-width: 0;
    color: #bbf7d0;
    font-family: Consolas, "SFMono-Regular", "Microsoft YaHei", monospace;
    font-size: 0.92rem;
    overflow-wrap: anywhere;
}

.terminal-product-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.terminal-product-grid span {
    display: grid;
    gap: 5px;
    min-width: 0;
    padding: 10px;
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.68);
    border: 1px solid rgba(148, 163, 184, 0.14);
}

.terminal-product-grid b {
    color: #f8fafc;
    font-size: 0.86rem;
    line-height: 1.3;
}

.terminal-product-grid em {
    width: fit-content;
    padding: 3px 8px;
    border-radius: 999px;
    background: rgba(52, 211, 153, 0.16);
    color: #bbf7d0;
    font-size: 0.78rem;
    font-style: normal;
    font-weight: 900;
}

.register-shot {
    overflow: hidden;
    border-radius: 18px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.09);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
    align-self: start;
}

.register-shot a {
    display: block;
    cursor: zoom-in;
}

.register-shot-link {
    outline: none;
}

.register-shot img {
    display: block;
    width: 100%;
    height: 320px;
    max-height: 440px;
    object-fit: cover;
    object-position: center;
    transition: transform var(--transition-normal), filter var(--transition-normal);
}

.register-shot-full img {
    height: 320px;
    object-fit: contain;
}

.register-shot a:hover img,
.register-shot a:focus-visible img {
    transform: scale(1.012);
    filter: saturate(1.06);
}

.register-shot-phone {
    max-width: 230px;
    justify-self: center;
}

.register-shot-phone img {
    height: auto;
    object-fit: contain;
}

.tutorial-lightbox[hidden] {
    display: none;
}

.lightbox-open {
    overflow: hidden;
}

.tutorial-lightbox {
    position: fixed;
    inset: 0;
    z-index: 2200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
}

.tutorial-lightbox-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 10, 24, 0.84);
    backdrop-filter: blur(18px);
}

.tutorial-lightbox-dialog {
    position: relative;
    z-index: 1;
    width: min(1180px, calc(100vw - 32px));
    max-height: calc(100dvh - 36px);
    margin: 0;
    padding: 66px 20px 18px;
    border-radius: 28px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: rgba(17, 19, 33, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.tutorial-lightbox-close {
    position: absolute;
    top: 14px;
    right: 14px;
    z-index: 3;
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    cursor: pointer;
    transition: transform var(--transition-normal), background var(--transition-normal);
}

.tutorial-lightbox-close:hover,
.tutorial-lightbox-close:focus-visible {
    background: rgba(167, 139, 250, 0.3);
    transform: scale(1.05);
}

.tutorial-lightbox-image {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: calc(100dvh - 132px);
    margin: 0 auto;
    object-fit: contain;
    border-radius: 18px;
}

.tutorial-lightbox-caption {
    margin-top: 14px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.65;
}

.tutorial-lightbox-caption:empty {
    display: none;
}

.register-tip-flow {
    max-width: 100%;
}

.register-tip-tail {
    max-width: 100%;
    grid-template-columns: 44px minmax(0, 1fr) auto;
    align-items: center;
}

.register-tail-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(143, 156, 255, 0.16);
    color: #fff;
    text-decoration: none;
    transition: transform var(--transition-normal), border-color var(--transition-normal), background var(--transition-normal);
}

.register-tail-link:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(143, 156, 255, 0.26);
}

.register-tail-link span {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 800;
}

.register-tail-link strong {
    margin: 0;
    color: #fff;
    font-size: 0.98rem;
}

@media (max-width: 940px) {
    .tutorial-guide-shell {
        padding: 36px 28px;
    }

    .register-hero-grid,
    .register-device-strip,
    .register-step {
        grid-template-columns: 1fr;
    }

    .register-tip-tail {
        grid-template-columns: 44px minmax(0, 1fr);
    }

    .register-tail-link {
        grid-column: 2 / -1;
        justify-self: start;
        margin-top: 2px;
    }
}

.tutorial-prereq {
    max-width: 860px;
    margin: 4px 0 24px;
    padding: 22px;
    border: 1px solid rgba(129, 140, 248, 0.2);
    border-radius: 22px;
    background:
        linear-gradient(135deg, rgba(129, 140, 248, 0.14), rgba(167, 139, 250, 0.06)),
        rgba(255, 255, 255, 0.04);
}

.tutorial-prereq-head {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.tutorial-prereq-head strong {
    color: var(--text-primary);
    font-size: 1.08rem;
    line-height: 1.35;
}

.tutorial-prereq-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(129, 140, 248, 0.16);
    color: var(--accent-primary);
    font-size: 0.82rem;
    font-weight: 800;
}

.tutorial-prereq-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(240px, 1fr));
    gap: 14px;
}

.continue-panel {
    max-width: 100%;
    margin-top: 4px;
    padding: 20px;
    border-radius: 28px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)),
        rgba(20, 23, 38, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.065);
}

.tutorial-consensus-shell .continue-panel {
    max-width: 980px;
}

.continue-panel-head {
    display: grid;
    gap: 8px;
    margin-bottom: 16px;
}

.continue-panel-kicker {
    width: fit-content;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(129, 140, 248, 0.16);
    color: var(--accent-primary);
    font-size: 0.82rem;
    font-weight: 800;
}

.continue-panel-head strong {
    color: var(--text-primary);
    font-size: 1.16rem;
    line-height: 1.35;
}

.continue-panel-grid {
    display: grid;
    grid-template-columns: minmax(260px, 0.75fr) minmax(0, 1.25fr);
    gap: 20px;
    align-items: start;
}

.continue-column {
    display: grid;
    align-content: start;
    gap: 10px;
}

.continue-group-head {
    min-height: 26px;
    display: flex;
    align-items: center;
    color: var(--text-primary);
    font-size: 0.92rem;
    font-weight: 800;
}

.continue-button-list,
.continue-button-grid {
    display: grid;
    gap: 10px;
}

.continue-button-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.continue-action {
    min-width: 0;
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    padding: 14px 16px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    text-decoration: none;
    transition: transform var(--transition-normal), border-color var(--transition-normal), background var(--transition-normal);
}

.continue-action:hover {
    transform: translateY(-2px);
    background: rgba(129, 140, 248, 0.14);
    border-color: rgba(129, 140, 248, 0.2);
}

.continue-action > i:first-child {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    border-radius: 12px;
    background: rgba(129, 140, 248, 0.18);
    color: var(--accent-primary);
}

.continue-action > i:last-child {
    flex: 0 0 auto;
    color: var(--text-muted);
    font-size: 0.78rem;
}

.continue-action span {
    min-width: 0;
    display: grid;
    gap: 4px;
    margin-right: auto;
}

.continue-action strong {
    color: var(--text-primary);
    font-size: 0.94rem;
    font-weight: 800;
    line-height: 1.35;
}

.continue-action small {
    color: var(--text-muted);
    font-size: 0.74rem;
    line-height: 1.45;
}

.continue-action-main {
    background:
        linear-gradient(145deg, rgba(129, 140, 248, 0.16), rgba(167, 139, 250, 0.06)),
        rgba(255, 255, 255, 0.045);
    border-color: rgba(129, 140, 248, 0.18);
}

.continue-action-plugin {
    background:
        linear-gradient(145deg, rgba(94, 234, 212, 0.09), rgba(36, 39, 61, 0.08)),
        rgba(255, 255, 255, 0.04);
    border-color: rgba(94, 234, 212, 0.14);
}

.continue-action-wide {
    grid-column: 1 / -1;
}

.tutorial-prereq-link {
    min-width: 0;
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    padding: 14px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.tutorial-prereq-link:hover {
    transform: translateY(-2px);
    background: rgba(129, 140, 248, 0.18);
}

.tutorial-prereq-link i {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 11px;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 0.9rem;
}

.tutorial-prereq-copy {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.tutorial-prereq-copy strong {
    color: var(--text-primary);
    font-size: 0.98rem;
    font-weight: 800;
    line-height: 1.25;
}

.tutorial-prereq-copy small {
    color: var(--accent-primary);
    font-size: 0.76rem;
    font-weight: 800;
}

.tutorial-consensus-shell {
    display: grid;
    gap: 22px;
}

.consensus-callout {
    max-width: 980px;
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 14px;
    align-items: start;
    padding: 20px 22px;
    border-radius: 24px;
    background:
        linear-gradient(155deg, rgba(129, 140, 248, 0.12), rgba(36, 39, 61, 0.72)),
        rgba(18, 21, 35, 0.9);
    border: 1px solid rgba(143, 156, 255, 0.16);
}

.consensus-callout i {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: var(--accent-gradient);
    color: #fff;
}

.consensus-callout strong,
.consensus-callout span {
    display: block;
}

.consensus-callout strong {
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 1.08rem;
    line-height: 1.35;
}

.consensus-callout span {
    color: var(--text-secondary);
    line-height: 1.75;
}

.consensus-callout-click {
    background:
        linear-gradient(155deg, rgba(94, 234, 212, 0.1), rgba(36, 39, 61, 0.72)),
        rgba(18, 21, 35, 0.9);
    border-color: rgba(94, 234, 212, 0.14);
}

.consensus-section-head {
    max-width: 980px;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    padding: 15px 16px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid rgba(255, 255, 255, 0.07);
}

.consensus-section-head > span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 30px;
    padding: 5px 9px;
    border-radius: 999px;
    background: var(--accent-gradient);
    color: #fff;
    font-size: 0.74rem;
    font-weight: 900;
}

.consensus-section-head strong {
    display: block;
    margin-bottom: 3px;
    color: var(--text-primary);
    font-size: 1.08rem;
    line-height: 1.25;
}

.consensus-section-head p {
    max-width: none;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.55;
}

.consensus-ext-grid {
    max-width: 980px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(164px, 1fr));
    gap: 10px;
}

.consensus-ext-chip {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    width: 100%;
    min-width: 0;
    padding: 12px;
    border-radius: 18px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)),
        rgba(20, 23, 38, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.065);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-normal), border-color var(--transition-normal), background var(--transition-normal);
}

.consensus-ext-chip::after {
    content: "点开";
    flex: 0 0 auto;
    justify-self: end;
    padding: 3px 6px;
    border-radius: 999px;
    background: rgba(129, 140, 248, 0.14);
    color: var(--accent-primary);
    font-size: 0.62rem;
    font-weight: 900;
    letter-spacing: 0;
}

.consensus-ext-chip:hover,
.consensus-ext-chip:focus-visible {
    transform: translateY(-2px);
    border-color: rgba(129, 140, 248, 0.22);
    background: rgba(129, 140, 248, 0.12);
}

.consensus-tip-grid {
    max-width: 980px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.consensus-tip-card {
    padding: 16px;
    border-radius: 20px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.018)),
        rgba(20, 23, 38, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.07);
}

.consensus-tip-card-warning {
    background:
        linear-gradient(155deg, rgba(251, 146, 60, 0.12), rgba(36, 39, 61, 0.72)),
        rgba(20, 23, 38, 0.9);
    border-color: rgba(251, 146, 60, 0.18);
}

.consensus-tip-card i {
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    border-radius: 12px;
    background: rgba(129, 140, 248, 0.16);
    color: var(--accent-primary);
}

.consensus-tip-card-warning i {
    background: rgba(251, 146, 60, 0.16);
    color: #fbbf24;
}

.consensus-tip-card strong {
    display: block;
    margin-bottom: 7px;
    color: var(--text-primary);
    font-size: 0.96rem;
    line-height: 1.32;
}

.consensus-tip-card p {
    max-width: none;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.86rem;
    line-height: 1.62;
}

.consensus-tip-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}

.consensus-tip-tags span {
    padding: 4px 7px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    font-size: 0.72rem;
    font-weight: 800;
}

.consensus-section-head-repair {
    background:
        linear-gradient(155deg, rgba(34, 197, 94, 0.1), rgba(36, 39, 61, 0.72)),
        rgba(20, 23, 38, 0.92);
    border-color: rgba(34, 197, 94, 0.16);
}

.consensus-section-head-repair > span {
    background: linear-gradient(135deg, #22c55e, #14b8a6);
}

.consensus-repair-panel {
    max-width: 980px;
    display: grid;
    grid-template-columns: minmax(230px, 0.82fr) minmax(0, 1.5fr);
    gap: 12px;
}

.consensus-repair-command,
.consensus-repair-steps article {
    border: 1px solid rgba(255, 255, 255, 0.075);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.016)),
        rgba(20, 23, 38, 0.92);
}

.consensus-repair-command {
    min-height: 100%;
    padding: 18px;
    border-radius: 22px;
    background:
        radial-gradient(circle at 22% 18%, rgba(34, 197, 94, 0.18), transparent 32%),
        linear-gradient(155deg, rgba(20, 184, 166, 0.11), rgba(36, 39, 61, 0.76)),
        rgba(20, 23, 38, 0.94);
    border-color: rgba(34, 197, 94, 0.18);
}

.consensus-repair-command span {
    display: inline-flex;
    margin-bottom: 12px;
    padding: 5px 8px;
    border-radius: 999px;
    background: rgba(34, 197, 94, 0.14);
    color: #86efac;
    font-size: 0.72rem;
    font-weight: 900;
}

.consensus-repair-command strong {
    display: block;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-size: 1.45rem;
    line-height: 1.18;
}

.consensus-repair-command p {
    max-width: none;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.62;
}

.consensus-repair-steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.consensus-repair-steps article {
    padding: 15px;
    border-radius: 20px;
}

.consensus-repair-steps i {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    border-radius: 12px;
    background: rgba(20, 184, 166, 0.14);
    color: #5eead4;
}

.consensus-repair-steps strong {
    display: block;
    margin-bottom: 7px;
    color: var(--text-primary);
    font-size: 0.94rem;
    line-height: 1.3;
}

.consensus-repair-steps p {
    max-width: none;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.82rem;
    line-height: 1.56;
}

.consensus-section-head-ticking {
    background:
        linear-gradient(155deg, rgba(14, 165, 233, 0.1), rgba(36, 39, 61, 0.72)),
        rgba(20, 23, 38, 0.92);
    border-color: rgba(14, 165, 233, 0.16);
}

.consensus-section-head-ticking > span {
    background: linear-gradient(135deg, #0ea5e9, #38bdf8);
}

.consensus-ticking-panel {
    max-width: 980px;
    display: grid;
    grid-template-columns: minmax(240px, 0.9fr) minmax(0, 1.45fr);
    gap: 12px;
}

.consensus-ticking-command,
.consensus-ticking-grid article {
    border: 1px solid rgba(255, 255, 255, 0.075);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.016)),
        rgba(20, 23, 38, 0.92);
}

.consensus-ticking-command {
    padding: 18px;
    border-radius: 22px;
    background:
        radial-gradient(circle at 20% 18%, rgba(14, 165, 233, 0.18), transparent 34%),
        linear-gradient(155deg, rgba(56, 189, 248, 0.1), rgba(36, 39, 61, 0.76)),
        rgba(20, 23, 38, 0.94);
    border-color: rgba(14, 165, 233, 0.18);
}

.consensus-ticking-command span {
    display: inline-flex;
    margin-bottom: 12px;
    padding: 5px 8px;
    border-radius: 999px;
    background: rgba(14, 165, 233, 0.14);
    color: #7dd3fc;
    font-size: 0.72rem;
    font-weight: 900;
}

.consensus-ticking-command strong {
    display: block;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 1.05rem;
    line-height: 1.32;
    word-break: break-word;
}

.consensus-ticking-command p {
    max-width: none;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.62;
}

.consensus-ticking-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.consensus-ticking-grid article {
    padding: 15px;
    border-radius: 20px;
}

.consensus-ticking-warning {
    background:
        linear-gradient(155deg, rgba(251, 146, 60, 0.11), rgba(36, 39, 61, 0.72)),
        rgba(20, 23, 38, 0.92);
    border-color: rgba(251, 146, 60, 0.18);
}

.consensus-ticking-grid i {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    border-radius: 12px;
    background: rgba(14, 165, 233, 0.14);
    color: #7dd3fc;
}

.consensus-ticking-warning i {
    background: rgba(251, 146, 60, 0.16);
    color: #fbbf24;
}

.consensus-ticking-grid strong {
    display: block;
    margin-bottom: 7px;
    color: var(--text-primary);
    font-size: 0.94rem;
    line-height: 1.3;
}

.consensus-ticking-grid p {
    max-width: none;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.82rem;
    line-height: 1.56;
}

.consensus-modal[hidden] {
    display: none;
}

.consensus-modal {
    position: fixed;
    inset: 0;
    z-index: 2300;
}

.consensus-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 10, 24, 0.88);
    backdrop-filter: blur(18px);
}

.consensus-modal-dialog {
    position: relative;
    z-index: 1;
    width: min(620px, calc(100vw - 48px));
    max-height: min(640px, calc(100dvh - 84px));
    margin: 42px auto;
    padding: 20px 18px 16px;
    border-radius: 22px;
    background: rgba(17, 19, 33, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 22px 58px rgba(0, 0, 0, 0.46);
    overflow: auto;
}

.consensus-modal-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    cursor: pointer;
}

.consensus-modal-head {
    margin-bottom: 12px;
    padding-right: 42px;
}

.consensus-modal-kicker {
    display: inline-flex;
    margin-bottom: 8px;
    padding: 4px 9px;
    border-radius: 999px;
    background: rgba(129, 140, 248, 0.16);
    color: var(--accent-primary);
    font-size: 0.74rem;
    font-weight: 800;
}

.consensus-modal-title {
    margin: 0 0 6px;
    color: var(--text-primary);
    font-size: clamp(1.28rem, 2.6vw, 1.74rem);
    line-height: 1.2;
}

.consensus-modal-desc {
    max-width: none;
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.55;
}

.consensus-modal-content {
    display: grid;
    gap: 12px;
}

.consensus-visual {
    position: relative;
    overflow: hidden;
    padding: 12px;
    border-radius: 18px;
    background:
        radial-gradient(circle at 16% 12%, rgba(129, 140, 248, 0.26), transparent 36%),
        linear-gradient(145deg, rgba(129, 140, 248, 0.13), rgba(20, 23, 38, 0.92));
    border: 1px solid rgba(143, 156, 255, 0.16);
}

.consensus-visual::after {
    content: "";
    position: absolute;
    right: -42px;
    bottom: -58px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(94, 234, 212, 0.16), transparent 68%);
    pointer-events: none;
}

.consensus-visual-top,
.consensus-visual-hints,
.consensus-visual-preview,
.consensus-visual-checks {
    position: relative;
    z-index: 1;
}

.consensus-visual-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.consensus-visual-file {
    display: grid;
    gap: 4px;
}

.consensus-visual-ext {
    color: #fff;
    font-size: 1.16rem;
    font-weight: 950;
    line-height: 1.1;
}

.consensus-visual-type {
    width: fit-content;
    padding: 4px 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
    font-size: 0.72rem;
    font-weight: 800;
}

.consensus-visual-status {
    flex: 0 0 auto;
    padding: 5px 8px;
    border-radius: 999px;
    background: rgba(94, 234, 212, 0.13);
    color: #8ff7e8;
    font-size: 0.7rem;
    font-weight: 900;
}

.consensus-visual-hints {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 12px;
}

.consensus-visual-hints span {
    padding: 5px 7px;
    border-radius: 9px;
    background: rgba(255, 255, 255, 0.075);
    color: var(--text-primary);
    font-size: 0.72rem;
    font-weight: 800;
}

.consensus-visual-preview {
    display: grid;
    gap: 6px;
    margin-top: 12px;
    padding: 8px;
    border-radius: 14px;
    background: rgba(5, 8, 22, 0.38);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.consensus-visual-preview span {
    display: flex;
    align-items: center;
    gap: 7px;
    min-height: 24px;
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
}

.consensus-visual-preview i {
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 22px;
    border-radius: 7px;
    background: rgba(129, 140, 248, 0.16);
    color: var(--accent-primary);
    font-size: 0.72rem;
}

.consensus-visual-checks {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-top: 10px;
}

.consensus-visual-checks span {
    padding: 7px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.055);
    color: var(--text-secondary);
    font-size: 0.76rem;
    line-height: 1.35;
}

.consensus-visual-checks b {
    display: block;
    margin-bottom: 2px;
    color: var(--text-primary);
    font-size: 0.78rem;
}

.consensus-modal-steps {
    max-height: 190px;
    overflow: auto;
    margin: 0;
    padding-right: 6px;
    padding-left: 20px;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.62;
}

.consensus-modal-steps li + li {
    margin-top: 7px;
}

.consensus-notes {
    max-width: 980px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.consensus-format-grid {
    max-width: 980px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.consensus-format-card {
    padding: 18px;
    border-radius: 22px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)),
        rgba(20, 23, 38, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.065);
}

.consensus-format-card h2 {
    margin: 0 0 10px;
    color: var(--text-primary);
    font-size: 1.04rem;
    line-height: 1.35;
}

.consensus-format-card p {
    max-width: none;
    margin: 0 0 10px;
    color: var(--text-secondary);
}

.consensus-format-card ul {
    margin: 0;
    padding-left: 18px;
    color: var(--text-secondary);
    line-height: 1.72;
}

.consensus-format-card li + li {
    margin-top: 6px;
}

.consensus-note {
    padding: 18px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid rgba(255, 255, 255, 0.07);
}

.consensus-note strong {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.35;
}

.consensus-note p {
    max-width: none;
    margin: 0;
    color: var(--text-secondary);
}

@media (max-width: 480px) {
    .tutorial-page {
        width: calc(100vw - 28px);
        justify-content: flex-start;
        padding: 72px 0 30px;
    }

    .tutorial-shell {
        padding: 22px 14px;
        border-radius: 20px;
    }

    .tutorial-shell h1 {
        margin: 10px 0 10px;
        font-size: 1.56rem;
        line-height: 1.12;
    }

    .tutorial-shell h1 .skill-subtitle {
        font-size: 0.58em;
        line-height: 1;
    }

    .topic-badge {
        padding: 5px 8px;
        font-size: 0.68rem;
    }

    .tutorial-lead,
    .tutorial-shell > p {
        font-size: 0.82rem;
        line-height: 1.48;
    }

    .tutorial-prereq {
        padding: 14px;
        border-radius: 20px;
    }

    .tutorial-prereq-head {
        gap: 9px;
        margin-bottom: 12px;
    }

    .tutorial-prereq-head strong {
        width: 100%;
        font-size: 0.98rem;
    }

    .tutorial-prereq-links {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
    }

    .continue-panel {
        padding: 16px;
        border-radius: 22px;
    }

    .continue-panel-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .continue-button-grid {
        grid-template-columns: 1fr;
    }

    .tutorial-prereq-side-head {
        padding: 0;
    }

    .tutorial-prereq-link {
        min-height: 88px;
        flex-direction: column;
        align-items: flex-start;
        justify-content: space-between;
        gap: 8px;
        padding: 10px;
    }

    .tutorial-prereq-copy {
        gap: 2px;
    }

    .tutorial-prereq-copy strong {
        font-size: 0.86rem;
    }

    .tutorial-prereq-copy small {
        font-size: 0.68rem;
    }

    .continue-action {
        min-height: 0;
        padding: 12px;
    }

    .tutorial-consensus-shell {
        gap: 12px;
    }

    .consensus-callout {
        grid-template-columns: 30px minmax(0, 1fr);
        gap: 8px;
        padding: 10px;
        border-radius: 16px;
    }

    .consensus-callout i {
        width: 30px;
        height: 30px;
        border-radius: 10px;
        font-size: 0.78rem;
    }

    .consensus-callout strong {
        margin-bottom: 4px;
        font-size: 0.84rem;
        line-height: 1.25;
    }

    .consensus-callout span {
        font-size: 0.74rem;
        line-height: 1.42;
    }

    .consensus-section-head {
        grid-template-columns: 1fr;
        gap: 7px;
        padding: 10px;
        border-radius: 15px;
    }

    .consensus-section-head > span {
        justify-self: start;
        min-height: 24px;
        padding: 4px 8px;
        font-size: 0.64rem;
    }

    .consensus-section-head strong {
        margin-bottom: 2px;
        font-size: 0.86rem;
    }

    .consensus-section-head p {
        font-size: 0.72rem;
        line-height: 1.42;
    }

    .consensus-format-grid,
    .consensus-notes {
        grid-template-columns: 1fr;
    }

    .consensus-ext-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 6px;
    }

    .consensus-ext-chip {
        min-height: 34px;
        justify-content: center;
        gap: 0;
        padding: 7px 4px;
        border-radius: 12px;
        font-size: 0.68rem;
        letter-spacing: -0.02em;
        text-align: center;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: normal;
    }

    .consensus-ext-chip::after {
        display: none;
    }

    .consensus-tip-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .consensus-tip-card {
        display: grid;
        grid-template-columns: 28px minmax(0, 1fr);
        column-gap: 8px;
        align-items: start;
        padding: 10px;
        border-radius: 15px;
    }

    .consensus-tip-card i {
        width: 28px;
        height: 28px;
        margin-bottom: 0;
        border-radius: 10px;
        font-size: 0.76rem;
    }

    .consensus-tip-card strong,
    .consensus-tip-card p,
    .consensus-tip-tags {
        grid-column: 2;
    }

    .consensus-tip-card strong {
        margin-bottom: 4px;
        font-size: 0.78rem;
        line-height: 1.24;
    }

    .consensus-tip-card p {
        font-size: 0.7rem;
        line-height: 1.38;
    }

    .consensus-tip-tags {
        gap: 4px;
        margin-top: 6px;
    }

    .consensus-tip-tags span {
        padding: 3px 5px;
        font-size: 0.62rem;
    }

    .consensus-repair-panel {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .consensus-repair-command {
        padding: 12px;
        border-radius: 16px;
    }

    .consensus-repair-command span {
        margin-bottom: 7px;
        padding: 4px 7px;
        font-size: 0.62rem;
    }

    .consensus-repair-command strong {
        margin-bottom: 6px;
        font-size: 1rem;
    }

    .consensus-repair-command p {
        font-size: 0.72rem;
        line-height: 1.42;
    }

    .consensus-repair-steps {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .consensus-repair-steps article {
        display: grid;
        grid-template-columns: 28px minmax(0, 1fr);
        column-gap: 8px;
        align-items: start;
        padding: 10px;
        border-radius: 15px;
    }

    .consensus-repair-steps i {
        width: 28px;
        height: 28px;
        margin-bottom: 0;
        border-radius: 10px;
        font-size: 0.74rem;
    }

    .consensus-repair-steps strong,
    .consensus-repair-steps p {
        grid-column: 2;
    }

    .consensus-repair-steps strong {
        margin-bottom: 4px;
        font-size: 0.78rem;
        line-height: 1.24;
    }

    .consensus-repair-steps p {
        font-size: 0.7rem;
        line-height: 1.38;
    }

    .consensus-ticking-panel {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .consensus-ticking-command {
        padding: 12px;
        border-radius: 16px;
    }

    .consensus-ticking-command span {
        margin-bottom: 7px;
        padding: 4px 7px;
        font-size: 0.62rem;
    }

    .consensus-ticking-command strong {
        margin-bottom: 6px;
        font-size: 0.82rem;
        line-height: 1.25;
    }

    .consensus-ticking-command p {
        font-size: 0.72rem;
        line-height: 1.42;
    }

    .consensus-ticking-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .consensus-ticking-grid article {
        display: grid;
        grid-template-columns: 28px minmax(0, 1fr);
        column-gap: 8px;
        align-items: start;
        padding: 10px;
        border-radius: 15px;
    }

    .consensus-ticking-grid i {
        width: 28px;
        height: 28px;
        margin-bottom: 0;
        border-radius: 10px;
        font-size: 0.74rem;
    }

    .consensus-ticking-grid strong,
    .consensus-ticking-grid p {
        grid-column: 2;
    }

    .consensus-ticking-grid strong {
        margin-bottom: 4px;
        font-size: 0.78rem;
        line-height: 1.24;
    }

    .consensus-ticking-grid p {
        font-size: 0.7rem;
        line-height: 1.38;
    }

    .consensus-notes {
        gap: 8px;
    }

    .consensus-note {
        padding: 12px;
        border-radius: 16px;
    }

    .consensus-note strong {
        font-size: 0.84rem;
    }

    .consensus-note p {
        font-size: 0.76rem;
        line-height: 1.48;
    }

    .consensus-modal-dialog {
        width: calc(100vw - 18px);
        max-height: calc(100vh - 18px);
        margin: 9px auto;
        padding: 18px 12px 14px;
        border-radius: 18px;
    }

    .consensus-modal-head {
        margin-bottom: 9px;
        padding-right: 38px;
    }

    .consensus-modal-title {
        font-size: 1.22rem;
    }

    .consensus-modal-desc {
        font-size: 0.78rem;
        line-height: 1.45;
    }

    .consensus-visual {
        padding: 10px;
        border-radius: 14px;
    }

    .consensus-visual-ext {
        font-size: 0.98rem;
    }

    .consensus-visual-type,
    .consensus-visual-status,
    .consensus-visual-hints span {
        font-size: 0.64rem;
    }

    .consensus-visual-hints,
    .consensus-visual-preview {
        margin-top: 8px;
    }

    .consensus-visual-preview {
        gap: 5px;
        padding: 8px;
    }

    .consensus-visual-preview span {
        min-height: 21px;
        font-size: 0.7rem;
    }

    .consensus-visual-preview i {
        width: 20px;
        height: 20px;
        flex-basis: 20px;
        font-size: 0.66rem;
    }

    .consensus-visual-checks {
        grid-template-columns: 1fr;
        gap: 6px;
        margin-top: 8px;
    }

    .consensus-visual-checks span {
        padding: 7px;
        font-size: 0.68rem;
    }

    .consensus-modal-steps {
        padding-left: 18px;
        font-size: 0.76rem;
        line-height: 1.45;
    }

    .tutorial-guide-shell {
        gap: 12px;
    }

    .register-tip {
        grid-template-columns: 30px minmax(0, 1fr);
        gap: 8px;
    }

    .register-step {
        grid-template-columns: 1fr;
    }

    .register-device-strip,
    .register-steps {
        gap: 8px;
    }

    .register-hero-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 6px;
    }

    .register-tip {
        padding: 9px;
        border-radius: 15px;
    }

    .register-tip i {
        width: 30px;
        height: 30px;
        border-radius: 10px;
        font-size: 0.78rem;
    }

    .register-tip strong {
        margin-bottom: 4px;
        font-size: 0.84rem;
        line-height: 1.25;
    }

    .register-tip span {
        font-size: 0.75rem;
        line-height: 1.42;
    }

    .register-device-strip {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 6px;
        padding: 8px;
        border-radius: 15px;
    }

    .register-device-strip span {
        font-size: 0.68rem;
        line-height: 1.32;
    }

    .register-hero-card {
        gap: 7px;
        padding: 9px;
        border-radius: 15px;
    }

    .register-hero-head {
        grid-template-columns: 26px minmax(0, 1fr);
        gap: 7px;
    }

    .register-hero-icon {
        width: 26px;
        height: 26px;
        border-radius: 9px;
        font-size: 0.72rem;
    }

    .register-hero-copy strong {
        margin-bottom: 3px;
        font-size: 0.78rem;
        line-height: 1.22;
    }

    .register-hero-copy p {
        font-size: 0.68rem;
        line-height: 1.34;
    }

    .register-hero-link {
        min-height: 32px;
        padding: 7px 8px;
        border-radius: 11px;
        gap: 6px;
    }

    .register-hero-link-primary span,
    .register-hero-link-secondary strong {
        font-size: 0.72rem;
        line-height: 1.18;
    }

    .register-hero-link-secondary {
        justify-content: center;
        text-align: center;
    }

    .register-hero-link-secondary span {
        display: none;
    }

    .register-hero-link-secondary strong {
        margin-left: 0;
    }

    .register-step {
        padding: 10px;
        border-radius: 15px;
        gap: 7px;
    }

    .register-step-copy {
        padding: 0;
        align-content: start;
    }

    .register-step-num {
        margin-bottom: 6px;
        padding: 4px 8px;
        font-size: 0.66rem;
    }

    .register-step h2 {
        margin-bottom: 7px;
        font-size: 0.92rem;
        line-height: 1.18;
    }

    .register-step p {
        font-size: 0.78rem;
        line-height: 1.43;
    }

    .register-step-copy > p {
        padding: 8px 9px;
        border-radius: 12px;
    }

    .register-step-copy p + p {
        margin-top: 7px;
    }

    .register-small-note {
        padding: 7px 8px;
        border-radius: 11px;
        font-size: 0.7rem;
        line-height: 1.34;
    }

    .terminal-menu-card {
        padding: 9px;
        border-radius: 16px;
        min-height: 0;
    }

    .terminal-menu-top {
        height: 34px;
        padding: 0 10px;
        border-radius: 11px 11px 0 0;
    }

    .terminal-menu-top strong {
        font-size: 0.72rem;
        line-height: 1.2;
    }

    .terminal-menu-body {
        gap: 7px;
        padding: 10px;
        border-radius: 0 0 11px 11px;
    }

    .terminal-menu-title {
        font-size: 0.82rem;
        line-height: 1.28;
    }

    .terminal-menu-row {
        grid-template-columns: 26px minmax(0, 1fr);
        gap: 8px;
        min-height: 34px;
        padding: 7px 8px;
        border-radius: 10px;
    }

    .terminal-menu-row b {
        width: 22px;
        height: 22px;
        border-radius: 7px;
        font-size: 0.74rem;
    }

    .terminal-menu-row span {
        font-size: 0.78rem;
        line-height: 1.25;
        overflow-wrap: anywhere;
    }

    .terminal-menu-command-row {
        grid-template-columns: minmax(58px, auto) minmax(0, 1fr);
        align-items: center;
        gap: 8px;
    }

    .terminal-menu-command-row b {
        width: auto;
        min-width: 54px;
        height: 22px;
        padding: 0 8px;
        white-space: nowrap;
    }

    .terminal-config-line {
        grid-template-columns: 1fr;
        gap: 6px;
        min-height: 0;
        padding: 8px;
        border-radius: 10px;
    }

    .terminal-config-line b,
    .terminal-config-line em {
        min-width: 0;
        overflow-wrap: anywhere;
    }

    .terminal-config-line b {
        font-size: 0.78rem;
    }

    .terminal-config-line em {
        font-size: 0.7rem;
        line-height: 1.35;
    }

    .terminal-tag {
        width: fit-content;
        min-width: 0;
        height: auto;
        min-height: 21px;
        padding: 3px 7px;
        font-size: 0.66rem;
        white-space: normal;
    }

    .terminal-dimension-grid,
    .terminal-product-grid {
        grid-template-columns: 1fr;
        gap: 7px;
    }

    .terminal-dimension-item {
        padding: 9px;
        border-radius: 11px;
    }

    .terminal-dimension-item span {
        font-size: 0.68rem;
    }

    .terminal-dimension-item b,
    .terminal-dimension-dm b {
        font-size: 0.76rem;
    }

    .terminal-dimension-dm {
        grid-template-columns: 1fr;
        gap: 7px;
        padding: 9px;
        border-radius: 11px;
    }

    .terminal-dimension-dm em {
        font-size: 0.7rem;
    }

    .terminal-input-preview {
        align-items: flex-start;
        flex-direction: column;
        gap: 5px;
        padding: 8px;
        border-radius: 10px;
    }

    .terminal-input-preview span {
        font-size: 0.68rem;
    }

    .terminal-input-preview b {
        font-size: 0.78rem;
    }

    .terminal-pill-row {
        display: grid;
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .terminal-pill {
        min-height: 26px;
        padding: 5px 8px;
        border-radius: 10px;
        font-size: 0.72rem;
        overflow-wrap: anywhere;
    }

    .terminal-product-grid span {
        padding: 8px;
        border-radius: 10px;
    }

    .terminal-product-grid b {
        font-size: 0.76rem;
    }

    .terminal-product-grid em {
        font-size: 0.7rem;
    }

    .terminal-menu-hint,
    .terminal-log-line {
        padding: 7px 8px;
        border-radius: 9px;
        font-size: 0.72rem;
        overflow-wrap: anywhere;
    }

    .terminal-control-row {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 6px;
    }

    .terminal-control-row span {
        padding: 6px 7px;
        border-radius: 10px;
        font-size: 0.68rem;
        text-align: center;
    }

    .register-tip-tail {
        grid-template-columns: 30px minmax(0, 1fr);
    }

    .register-tail-link {
        grid-column: 1 / -1;
        width: 100%;
        min-height: 34px;
        justify-content: space-between;
        padding: 8px 10px;
        border-radius: 11px;
        margin-top: 0;
    }

    .register-tail-link span,
    .register-tail-link strong {
        font-size: 0.72rem;
        line-height: 1.18;
    }

    .register-shot {
        border-radius: 14px;
    }

    .register-shot img,
    .register-shot-full img {
        height: 184px;
        max-height: 184px;
    }

    .register-shot-phone {
        max-width: 180px;
    }

    .register-shot-phone img {
        height: auto;
        max-height: 220px;
    }

    .tutorial-lightbox-dialog {
        width: calc(100vw - 16px);
        max-height: calc(100dvh - 16px);
        padding: 66px 10px 10px;
        border-radius: 20px;
    }

    .tutorial-lightbox-image {
        max-height: calc(100dvh - 104px);
        border-radius: 14px;
    }
}

/* ===== 页脚 ===== */
.footer {
    padding: 40px 5%;
    margin-top: 50px;
    border-radius: 30px 30px 0 0;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 1.2rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    border: 1px solid var(--glass-border);
}

.social-link:hover {
    background: var(--accent-gradient);
    color: white;
    transform: translateY(-5px);
}

.copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== 回到顶部 ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 100;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    background: var(--accent-gradient);
    color: white;
}

.back-to-top i {
    font-size: 1.2rem;
    color: var(--text-primary);
}

.back-to-top:hover i {
    color: white;
}

/* ===== Toast 消息 ===== */
.toast-container {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 15px 30px;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border-radius: 15px;
    color: var(--text-primary);
    font-weight: 500;
    box-shadow: 0 10px 40px var(--glass-shadow);
    animation: toastIn 0.3s ease-out;
}

.toast.success {
    border-left: 4px solid #10b981;
}

.toast.error {
    border-left: 4px solid #ef4444;
}

.empty-card {
    padding: 28px;
    border-radius: 24px;
    text-align: center;
    color: var(--text-muted);
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== 动画类 ===== */
.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.animate-fade-in-delay {
    animation: fadeIn 0.8s ease-out 0.3s forwards;
    opacity: 0;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 0.8s ease-out 0.6s forwards;
    opacity: 0;
}

.animate-slide-up {
    animation: slideUp 0.8s ease-out forwards;
}

.animate-slide-up-delay {
    animation: slideUp 0.8s ease-out 0.2s forwards;
    opacity: 0;
}

.animate-float {
    animation: floatElement 6s ease-in-out infinite;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes floatElement {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 响应式设计 ===== */
@media (max-width: 992px) {
    .nav-links {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero-content {
        flex-direction: column-reverse;
        align-items: center;
        text-align: center;
    }
    
    .hero-text {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .description {
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }

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

    .hero-note {
        width: min(520px, 100%);
    }
    
    .avatar-container {
        width: 250px;
        height: 250px;
    }
    
    .name {
        font-size: 3rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    html {
        scroll-padding-top: 68px;
    }

    .navbar {
        height: 64px;
    }

    .hero {
        min-height: auto;
        justify-content: flex-start;
        padding: 82px 18px 40px;
    }

    .hero-content {
        flex-direction: column;
        gap: 18px;
    }

    .hero-text {
        width: 100%;
    }

    .greeting {
        margin-bottom: 6px;
        font-size: 0.92rem;
    }

    .name {
        font-size: clamp(2.15rem, 10vw, 2.8rem);
        margin-bottom: 8px;
    }

    .title {
        margin-bottom: 12px;
        font-size: 1.08rem;
    }

    .description {
        width: 100%;
        max-width: 360px;
        margin: 0 auto 16px;
        padding: 13px 14px;
        border: 1px solid var(--glass-border);
        border-radius: 18px;
        background: rgba(255, 255, 255, 0.055);
        font-size: 0.92rem;
        line-height: 1.55;
        gap: 6px;
    }

    .desc-line {
        overflow-wrap: anywhere;
    }

    .desc-line:first-child {
        font-size: 0.98rem;
    }

    .hero-highlights {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
        width: min(100%, 330px);
        margin: 0 auto 16px;
    }

    .highlight-pill {
        flex: 0 0 auto;
        min-height: 32px;
        padding: 7px 11px;
        font-size: 0.8rem;
        box-shadow: none;
    }

    .hero-buttons {
        width: auto;
        max-width: 340px;
        margin: 0 auto;
        align-items: center;
        flex-direction: row;
        justify-content: center;
        gap: 10px;
    }

    .hero-buttons .btn {
        width: auto;
        min-width: 0;
        flex: 0 0 auto;
        padding: 10px 13px;
        border-radius: 999px;
        font-size: 0.88rem;
        gap: 7px;
    }

    .hero-buttons .btn i {
        font-size: 0.9em;
    }

    .hero-image {
        width: min(100%, 340px);
        flex-direction: row;
        align-items: center;
        justify-content: center;
        gap: 12px;
        padding-top: 2px;
        animation: none;
    }

    .avatar-container {
        width: 68px;
        height: 68px;
        flex: 0 0 68px;
        padding: 2px;
    }

    .avatar-glow {
        display: none;
    }

    .hero-note {
        flex: 1;
        min-width: 0;
        width: auto;
        padding: 13px 14px;
        border-radius: 18px;
        text-align: left;
    }

    .hero-note-label {
        margin-bottom: 6px;
        padding: 4px 8px;
        font-size: 0.72rem;
    }

    .hero-note strong {
        display: -webkit-box;
        margin-bottom: 5px;
        overflow: hidden;
        font-size: 0.9rem;
        line-height: 1.45;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }

    .hero-note p {
        font-size: 0.78rem;
        line-height: 1.5;
    }

    .section {
        min-height: auto;
        display: block;
        align-items: stretch;
        padding: 58px 18px;
    }
    
    .section-title {
        font-size: 1.75rem;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 26px;
        text-align: center;
        line-height: 1.2;
    }

    .title-icon {
        width: 34px;
        height: 34px;
        flex-basis: 34px;
        border-radius: 12px;
        font-size: 0.88rem;
        box-shadow: 0 10px 22px rgba(102, 126, 234, 0.2);
    }

    .scroll-indicator {
        display: none;
    }
    
    .about-card {
        max-width: 100%;
        padding: 22px;
        border-radius: 22px;
    }

    .about-text {
        margin-bottom: 22px;
    }

    .about-text p {
        margin-bottom: 14px;
        font-size: 0.94rem;
        line-height: 1.75;
    }

    .about-actions {
        width: auto;
        max-width: 340px;
        margin-left: auto;
        margin-right: auto;
        margin-bottom: 24px;
    }

    .about-actions .btn {
        min-width: 0;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 8px;
    }

    .stat-item {
        padding: 13px 6px;
        border-radius: 16px;
    }
    
    .stat-number {
        margin-bottom: 4px;
        font-size: 1.75rem;
    }

    .stat-label {
        font-size: 0.72rem;
        line-height: 1.25;
    }

    .skills-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .skill-card,
    .feedback-panel,
    .roadmap-card {
        border-radius: 22px;
    }

    .skill-card {
        min-height: 128px;
        padding: 12px;
    }

    .skill-icon {
        width: 34px;
        height: 34px;
        margin-bottom: 9px;
        border-radius: 11px;
        font-size: 0.95rem;
    }

    .skill-name {
        width: 100%;
        font-size: 0.86rem;
        line-height: 1.15;
    }

    .skill-subtitle {
        display: block;
        width: 100%;
        margin-top: 2px;
        font-size: 0.68em;
    }

    .skill-desc {
        display: none;
    }

    .topic-header {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
        margin-bottom: 8px;
    }

    .topic-badge {
        padding: 3px 8px;
        font-size: 0.66rem;
    }

    .tutorial-entry-action {
        padding: 5px 8px;
        font-size: 0.66rem;
        gap: 4px;
    }

    .feedback-stack {
        gap: 10px;
    }

    .feedback-panel {
        padding: 14px;
    }

    .feedback-panel-head {
        margin-bottom: 10px;
    }

    .feedback-panel-head h3 {
        font-size: 0.98rem;
    }

    .feedback-panel-head p {
        font-size: 0.78rem;
        line-height: 1.45;
    }

    .roadmap-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
    }

    .roadmap-card {
        display: grid;
        grid-template-columns: 26px minmax(0, 1fr);
        align-items: center;
        gap: 7px;
        padding: 8px 9px;
        border-radius: 999px;
    }

    .roadmap-step {
        width: 26px;
        height: 26px;
        margin-bottom: 0;
        border-radius: 50%;
        font-size: 0.68rem;
        box-shadow: none;
    }

    .roadmap-card h3 {
        margin-bottom: 0;
        font-size: 0.72rem;
        line-height: 1.16;
    }

    .roadmap-card p,
    .roadmap-points {
        display: none;
    }
    
    .projects-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 10px;
    }

    .feedback-entry {
        width: min(104px, 100%);
        padding: 10px;
        gap: 5px;
    }

    .feedback-entry-code {
        width: 32px;
        height: 32px;
        font-size: 0.72rem;
    }

    .feedback-entry-title {
        max-width: 78px;
        font-size: 0.78rem;
        line-height: 1.18;
    }

    .feedback-entry-desc {
        display: none;
    }

    .feedback-entry-action {
        font-size: 0.66rem;
    }
    
    .contact-info,
    .contact-form {
        padding: 20px;
        border-radius: 22px;
    }

    .contact-info {
        gap: 18px;
        text-align: center;
    }

    .contact-intro {
        align-items: center;
    }

    .contact-kicker {
        margin-bottom: 10px;
        padding: 6px 10px;
        font-size: 0.78rem;
    }

    .contact-info h3 {
        margin-bottom: 10px;
        font-size: 1.35rem;
    }

    .contact-intro p {
        font-size: 0.9rem;
        line-height: 1.65;
    }

    .purchase-card {
        width: fit-content;
        max-width: 100%;
        margin: 14px auto 0;
        padding: 9px 12px;
        gap: 8px;
        border-radius: 999px;
    }

    .purchase-card i {
        width: 28px;
        height: 28px;
        border-radius: 50%;
    }

    .purchase-card span {
        font-size: 0.8rem;
    }

    .purchase-card strong {
        width: auto;
        margin-left: 0;
        font-size: 0.9rem;
    }

    .contact-groups {
        padding: 12px;
        border-radius: 20px;
    }

    .contact-method-title {
        gap: 9px;
        margin-bottom: 10px;
        font-size: 0.95rem;
    }

    .contact-method-title i {
        width: 32px;
        height: 32px;
        border-radius: 50%;
    }

    .contact-methods {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        max-width: none;
        margin: 0;
    }

    .qq-group-card {
        width: 100%;
        min-height: 100px;
        aspect-ratio: auto;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        align-content: start;
        justify-content: space-between;
        min-width: 0;
        gap: 8px;
        padding: 11px;
        border-radius: 18px;
        text-align: left;
    }

    .qq-group-info {
        min-width: 0;
        justify-items: start;
        gap: 4px;
    }

    .qq-group-info span {
        overflow-wrap: anywhere;
        font-size: 0.7rem;
    }

    .qq-group-info strong {
        font-size: 0.84rem;
    }

    .qq-open-link {
        width: auto;
        justify-self: start;
        padding: 5px 8px;
        font-size: 0.66rem;
        gap: 4px;
    }

    .topic-header {
        align-items: flex-start;
        flex-direction: column;
    }
    
    .btn {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: 0 4%;
    }
    
    .brand-name {
        display: none;
    }

    .hero {
        padding: 76px 14px 34px;
    }
    
    .name {
        font-size: 2.05rem;
    }
    
    .title {
        font-size: 1rem;
    }

    .description {
        max-width: 100%;
        padding: 12px;
        font-size: 0.88rem;
    }

    .hero-highlights {
        gap: 7px;
    }

    .highlight-pill {
        padding: 6px 9px;
        font-size: 0.76rem;
    }

    .hero-buttons {
        max-width: 310px;
        gap: 8px;
    }

    .hero-buttons .btn {
        padding: 9px 11px;
        font-size: 0.83rem;
    }

    .avatar-container {
        width: 58px;
        height: 58px;
        flex-basis: 58px;
    }

    .hero-note {
        padding: 11px 12px;
    }

    .section {
        padding: 50px 14px;
    }

    .section-title {
        margin-bottom: 22px;
        font-size: 1.55rem;
    }

    .about-card,
    .contact-info,
    .feedback-panel {
        padding: 18px;
    }

    .feedback-panel {
        border-radius: 18px;
    }

    .contact-methods {
        gap: 8px;
    }

    .qq-group-card {
        min-height: 96px;
        padding: 10px;
    }

    .skills-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 360px) {
    .hero-buttons {
        max-width: 280px;
    }

    .hero-buttons .btn {
        padding: 8px 10px;
        font-size: 0.8rem;
    }

    .contact-methods {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .roadmap-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .projects-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .feedback-entry {
        width: min(118px, 100%);
    }
}