/* DuckACE v0.3.8 — 官网样式 */
:root {
    --color-bg: #0a0a0f;
    --color-bg2: #0f0f18;
    --color-card: rgba(20, 20, 35, 0.6);
    --color-card-hover: rgba(30, 30, 50, 0.8);
    --color-border: rgba(121, 83, 187, 0.12);
    --color-border-hover: rgba(121, 83, 187, 0.25);
    --color-text: #e0e0e0;
    --color-text-light: #ffffff;
    --color-text-muted: #8888a0;
    --color-primary: #7953bb;
    --color-primary-dark: #5c3d99;
    --color-primary-light: #a88bdd;
    --color-primary-glow: rgba(121, 83, 187, 0.35);
    --color-secondary: #ffc209;
    --color-secondary-glow: rgba(255, 194, 9, 0.3);
    --color-success: #4ade80;
    --color-warning: #fbbf24;
    --color-danger: #f87171;
    --gradient-primary: linear-gradient(135deg, #7953bb, #a88bdd);
    --gradient-secondary: linear-gradient(135deg, #ffc209, #ffd466);
    --gradient-accent: linear-gradient(135deg, #7953bb, #ffc209);
    --gradient-success: linear-gradient(135deg, #4ade80, #22d3ee);
    --font-heading: 'Orbitron', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 60px var(--color-primary-glow);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== 背景 ========== */
.bg-layer {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}
.bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(121, 83, 187, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(121, 83, 187, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}
.bg-orbs { position: absolute; inset: 0; pointer-events: none; }
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    animation: orbFloat 20s ease-in-out infinite;
}
.orb-1 {
    width: 600px; height: 600px;
    background: var(--color-primary);
    top: -200px; left: -200px;
}
.orb-2 {
    width: 500px; height: 500px;
    background: var(--color-secondary);
    bottom: -150px; right: -150px;
    animation-delay: -7s;
}
.orb-3 {
    width: 400px; height: 400px;
    background: var(--color-success);
    top: 50%; left: 50%;
    animation-delay: -14s;
    opacity: 0.08;
}
@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}
#particleCanvas { position: absolute; inset: 0; pointer-events: none; }

/* ========== 光标 ========== */
.cursor-glow {
    position: fixed;
    width: 300px; height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(121, 83, 187, 0.08), transparent 70%);
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 9999;
    transition: opacity 0.3s;
}
@media (max-width: 768px) { .cursor-glow { display: none; } }

/* ========== 导航 ========== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s;
    background: transparent;
}
.navbar.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 10px 0;
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}
.logo-icon {
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 1rem;
}
.logo-text { display: flex; align-items: baseline; gap: 8px; }
.logo-primary {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-text-light);
}
.logo-badge {
    font-size: 0.65rem;
    padding: 2px 6px;
    background: rgba(121, 83, 187, 0.3);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    color: var(--color-primary-light);
    font-family: var(--font-mono);
}
.nav-menu { display: flex; gap: 32px; }
.nav-link {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    transition: color 0.3s;
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s;
    border-radius: 2px;
}
.nav-link:hover { color: var(--color-text-light); }
.nav-link:hover::after { width: 100%; }
.btn-nav {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--color-text-light);
    transition: all 0.3s;
    background: rgba(121, 83, 187, 0.1);
}
.btn-nav:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    box-shadow: 0 0 20px var(--color-primary-glow);
}
.btn-nav-outline {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    transition: all 0.3s;
    background: transparent;
}
.btn-nav-outline:hover {
    color: var(--color-text-light);
    border-color: var(--color-primary);
    box-shadow: 0 0 16px var(--color-primary-glow);
}
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}
.mobile-author {
    display: none;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all 0.3s;
    text-decoration: none;
}
.mobile-author:hover {
    color: var(--color-primary-light);
    border-color: var(--color-primary);
}
.menu-toggle span {
    display: block;
    width: 24px; height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: 0.3s;
}

/* ========== Hero ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 80px;
}
.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-content { display: flex; flex-direction: column; gap: 24px; }
.hero-badges { display: flex; gap: 10px; flex-wrap: wrap; }
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: rgba(121, 83, 187, 0.15);
    border: 1px solid rgba(121, 83, 187, 0.25);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    color: var(--color-primary-light);
}
.badge i { font-size: 0.6rem; }
.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 900;
    color: var(--color-text-light);
    line-height: 1.2;
}
.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: 1rem;
    color: var(--color-text-muted);
    max-width: 520px;
    line-height: 1.7;
}
.hero-subtitle strong { color: var(--color-text-light); }
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}
.stat-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: all 0.3s;
}
.stat-card:hover {
    border-color: var(--color-border-hover);
    background: var(--color-card-hover);
    transform: translateY(-2px);
}
.stat-card i {
    font-size: 1.2rem;
    color: var(--color-primary-light);
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(121, 83, 187, 0.15);
    border-radius: var(--radius-sm);
}
.stat-card.featured {
    border-color: rgba(255, 194, 9, 0.2);
    background: rgba(255, 194, 9, 0.05);
}
.stat-card.featured i { background: rgba(255, 194, 9, 0.15); color: var(--color-secondary); }
.stat-number {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text-light);
}
.stat-unit { font-size: 0.65rem; color: var(--color-text-muted); font-weight: 400; }
.stat-label { display: block; font-size: 0.65rem; color: var(--color-text-muted); margin-top: 2px; }
.hero-actions { display: flex; gap: 12px; margin-top: 8px; }
.btn-primary, .btn-secondary, .btn-nav {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s;
    cursor: pointer;
}
.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    border: none;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--color-primary-glow);
}
.btn-glow { position: relative; overflow: hidden; }
.btn-glow::after {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.15), transparent 60%);
    opacity: 0;
    transition: opacity 0.5s;
}
.btn-glow:hover::after { opacity: 1; }
.btn-secondary {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
}
.btn-secondary:hover {
    border-color: var(--color-primary);
    color: var(--color-text-light);
}
.btn-large { padding: 16px 36px; font-size: 1rem; }

/* Hero Visual */
.hero-visual { display: flex; justify-content: center; }
.mock-terminal {
    width: 100%;
    max-width: 420px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: rgba(15, 15, 25, 0.7);
    backdrop-filter: blur(20px);
}
.mock-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--color-border);
    font-size: 0.7rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}
.mock-dots { display: flex; gap: 6px; }
.mock-dots span {
    width: 10px; height: 10px;
    border-radius: 50%;
}
.mock-dots span:nth-child(1) { background: var(--color-danger); }
.mock-dots span:nth-child(2) { background: var(--color-warning); }
.mock-dots span:nth-child(3) { background: var(--color-success); }
.mock-body { padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.mock-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: rgba(0,0,0,0.2);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}
.mock-label { color: var(--color-text-muted); }
.mock-value { font-family: var(--font-mono); font-size: 0.75rem; color: var(--color-text-light); }
.dot-active {
    display: inline-block;
    width: 8px; height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    margin-right: 6px;
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.4); }
    50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(74, 222, 128, 0); }
}
.trend-down { color: var(--color-success); }
.trend-up { color: var(--color-secondary); }
.status-running {
    padding: 2px 8px;
    background: rgba(74, 222, 128, 0.15);
    border: 1px solid rgba(74, 222, 128, 0.3);
    border-radius: 4px;
    font-size: 0.65rem;
    color: var(--color-success);
}
.mock-chart {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 64px;
    padding: 8px 4px 0;
    margin-top: 4px;
}
.mock-bar {
    flex: 1;
    background: var(--gradient-primary);
    border-radius: 3px 3px 0 0;
    opacity: 0.6;
    transition: height 0.5s;
    animation: barAnim 3s ease-in-out infinite;
}
.mock-bar:nth-child(even) {
    background: var(--gradient-secondary);
    animation-delay: -1.5s;
}
@keyframes barAnim {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.9; }
}
.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0; right: 0;
    line-height: 0;
}
.hero-wave svg { width: 100%; height: 80px; }

/* ========== Section Shared ========== */
section { padding: 100px 0; position: relative; }
.section-header {
    text-align: center;
    margin-bottom: 56px;
}
.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 12px;
}
.section-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    max-width: 500px;
    margin: 0 auto;
}
.glass {
    background: var(--color-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all 0.4s;
}
.glass:hover {
    background: var(--color-card-hover);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-card);
}

/* ========== 功能 ========== */
.features { background: var(--color-bg2); }
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.feature-card {
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s;
}
.feature-card:hover::before { opacity: 1; }
.feature-card:hover { transform: translateY(-4px); }
.feature-icon {
    width: 44px; height: 44px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(121, 83, 187, 0.15);
    border-radius: var(--radius-sm);
    color: var(--color-primary-light);
    font-size: 1.1rem;
}
.feature-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-light);
}
.feature-card p {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    flex: 1;
}
.feature-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.feature-tags span {
    padding: 3px 8px;
    background: rgba(121, 83, 187, 0.1);
    border: 1px solid rgba(121, 83, 187, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.6rem;
    color: var(--color-primary-light);
}
.feature-new {
    display: inline-block;
    font-size: 0.55rem;
    padding: 1px 6px;
    background: var(--gradient-secondary);
    color: #000;
    border-radius: 3px;
    font-weight: 700;
    vertical-align: middle;
    margin-left: 4px;
    animation: glowPulse 2s ease-in-out infinite;
}
@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(255, 194, 9, 0.4); }
    50% { box-shadow: 0 0 12px rgba(255, 194, 9, 0.6); }
}

/* ========== 性能对比 ========== */
.performance { background: var(--color-bg); }
.perf-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}
.perf-stats { display: flex; flex-direction: column; gap: 14px; }
.perf-card {
    padding: 20px;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.3s;
}
.perf-card:hover {
    border-color: var(--color-border-hover);
    transform: translateX(4px);
}
.perf-icon {
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(121, 83, 187, 0.15);
    border-radius: var(--radius-sm);
    color: var(--color-primary-light);
    flex-shrink: 0;
}
.perf-value {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text-light);
    min-width: 80px;
}
.perf-value span { font-size: 0.7rem; color: var(--color-text-muted); font-weight: 400; }
.perf-label {
    flex: 1;
    font-size: 0.82rem;
    color: var(--color-text-muted);
}
.perf-bar {
    width: 100px;
    height: 6px;
    background: rgba(255,255,255,0.06);
    border-radius: 3px;
    overflow: hidden;
    flex-shrink: 0;
}
.perf-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 3px;
    transition: width 1.5s ease;
}
.perf-fill.accent { background: var(--gradient-secondary); }

/* 对比图表 */
.perf-chart {
    padding: 28px;
    overflow: hidden;
}
.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}
.chart-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-light);
}
.chart-legend { display: flex; gap: 16px; font-size: 0.75rem; color: var(--color-text-muted); }
.chart-legend i { font-size: 0.5rem; margin-right: 4px; }
.chart-body { display: flex; flex-direction: column; gap: 20px; }
.chart-item { display: flex; align-items: center; gap: 14px; }
.chart-label {
    width: 80px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    flex-shrink: 0;
}
.chart-bars {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.cbar {
    height: 28px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    padding: 0 12px;
    font-size: 0.65rem;
    font-family: var(--font-mono);
    color: var(--color-text-light);
    transition: width 1.5s ease;
    width: 0;
    overflow: hidden;
    white-space: nowrap;
}
.cbar.before { background: rgba(121, 83, 187, 0.3); }
.cbar.after { background: rgba(255, 194, 9, 0.3); }
.cbar span { opacity: 0; transition: opacity 0.5s 1s; }
.cbar.animated span { opacity: 1; }

/* 性能标签 */
.perf-tags {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 40px;
    flex-wrap: wrap;
}
.perf-tags span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}
.perf-tags i { color: var(--color-primary-light); }

/* ========== 工作原理 ========== */
.workflow { background: var(--color-bg2); }
.workflow-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}
.wf-step {
    padding: 28px 24px;
    text-align: center;
    position: relative;
}
.wf-num {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    line-height: 1;
}
.wf-body h3 {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 8px;
}
.wf-body p {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}
.safety-note {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px 28px;
    max-width: 800px;
    margin: 0 auto;
}
.safety-note i {
    font-size: 2rem;
    color: var(--color-success);
    flex-shrink: 0;
    margin-top: 2px;
}
.safety-note h3 {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: 6px;
}
.safety-note p {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ========== 下载 ========== */
.download { background: var(--color-bg); }
.download-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 40px;
    align-items: center;
}
.download-info { display: flex; flex-direction: column; gap: 20px; }
.download-info h2 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    color: var(--color-text-light);
}
.dl-subtitle { font-size: 0.85rem; color: var(--color-text-muted); }
.dl-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.dl-features span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--color-text);
}
.dl-features i { font-size: 0.7rem; }
.dl-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.dl-notice {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(248, 113, 113, 0.08);
    border: 1px solid rgba(248, 113, 113, 0.15);
    border-radius: var(--radius-sm);
    font-size: 0.72rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}
.dl-notice i { color: var(--color-warning); margin-top: 2px; }

/* 终端窗口 */
.term-window {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.term-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--color-border);
    font-size: 0.65rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}
.term-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
}
.term-dot.red { background: var(--color-danger); }
.term-dot.yellow { background: var(--color-warning); }
.term-dot.green { background: var(--color-success); }
.term-body { padding: 16px; overflow-x: auto; }
.term-body pre {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    line-height: 1.8;
    color: var(--color-text-muted);
}

/* ========== FAQ ========== */
.faq { background: var(--color-bg2); }
.faq-list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { overflow: hidden; }
.faq-q {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--color-text-light);
    transition: color 0.3s;
    gap: 12px;
}
.faq-q i {
    transition: transform 0.3s;
    color: var(--color-text-muted);
    font-size: 0.8rem;
    flex-shrink: 0;
}
.faq-item.active .faq-q i { transform: rotate(180deg); }
.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 24px;
}
.faq-item.active .faq-a {
    max-height: 300px;
    padding: 0 24px 18px;
}
.faq-a p {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}
.faq-a b { color: var(--color-text-light); }

/* ========== Footer ========== */
.footer {
    padding: 60px 0 30px;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand { display: flex; flex-direction: column; gap: 14px; }
.footer-brand .logo .logo-icon { width: 32px; height: 32px; font-size: 0.85rem; }
.footer-brand p { font-size: 0.82rem; color: var(--color-text-muted); max-width: 300px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    transition: all 0.3s;
}
.footer-social a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-light);
    box-shadow: 0 0 16px var(--color-primary-glow);
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links h4 {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: 4px;
}
.footer-links a, .footer-links span {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    transition: color 0.3s;
}
.footer-links a:hover { color: var(--color-primary-light); }
.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    text-align: center;
}
.footer-bottom p {
    font-size: 0.72rem;
    color: var(--color-text-dim);
    margin-bottom: 4px;
}
.footer-bottom .disclaimer { color: var(--color-text-muted); opacity: 0.6; }

/* ========== 滚动动画 ========== */
[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.7s ease;
}
[data-reveal="left"] {
    transform: translateX(-30px);
}
[data-reveal="right"] {
    transform: translateX(30px);
}
[data-reveal].visible {
    opacity: 1;
    transform: translate(0);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .hero-container { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { display: none; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .perf-grid { grid-template-columns: 1fr; }
    .download-card { grid-template-columns: 1fr; }
    .workflow-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-menu { display: none; }
    .nav-actions { display: none; }
    .menu-toggle { display: flex; }
    .mobile-author { display: flex; }
    .nav-menu.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%; left: 0; right: 0;
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--color-border);
        padding: 16px 24px;
        gap: 16px;
    }
    .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); }
    .hero { padding: 100px 0 60px; }
    .hero-title { font-size: 1.8rem; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: 1fr; }
    .workflow-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    section { padding: 60px 0; }
    .perf-chart { padding: 20px; }
    .chart-label { width: 60px; font-size: 0.65rem; }
    .download-card { padding: 24px; }
    .dl-features { grid-template-columns: 1fr; }
    .stat-card { padding: 10px; }
    .stat-card i { display: none; }
}