:root {
    --primary: #8B5CF6;
    --primary-light: #A78BFA;
    --primary-dark: #7C3AED;
    --secondary: #06B6D4;
    --accent: #EC4899;
    --bg-dark: #0A0A14;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-glass: rgba(255, 255, 255, 0.06);
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.15);
    --text: #F1F5F9;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --gradient-1: linear-gradient(135deg, #8B5CF6 0%, #6366F1 50%, #3B82F6 100%);
    --gradient-2: linear-gradient(135deg, #EC4899 0%, #8B5CF6 100%);
    --gradient-text: linear-gradient(135deg, #A78BFA 0%, #EC4899 100%);
    --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 60px rgba(139, 92, 246, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
}

#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.3s ease;
    backdrop-filter: blur(0px);
}

.navbar.scrolled {
    background: rgba(10, 10, 20, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
    font-weight: 700;
    font-size: 1.3rem;
}

.logo-icon {
    font-size: 1.6rem;
}

.logo-text .highlight {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s ease;
}

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

.nav-btn {
    background: var(--gradient-1);
    color: white;
    padding: 10px 24px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(139, 92, 246, 0.5);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ========== Hero 首屏 ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 60px;
    overflow: hidden;
}

.hero-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 80px;
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, #8B5CF6, transparent);
    top: -100px;
    right: -100px;
    animation: float 20s ease-in-out infinite;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #EC4899, transparent);
    bottom: 100px;
    left: -150px;
    animation: float 25s ease-in-out infinite reverse;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #06B6D4, transparent);
    top: 50%;
    left: 50%;
    animation: float 18s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content {
    width: 500px;
    flex-shrink: 0;
    z-index: 1;
    text-align: left;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    animation: fadeInDown 0.8s ease;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #10B981;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.1s both;
}

.title-main {
    display: block;
    background: linear-gradient(135deg, #fff 0%, #A78BFA 50%, #EC4899 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-sub {
    display: block;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 500;
    color: var(--text-secondary);
    margin-top: 8px;
    letter-spacing: 2px;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
    animation: fadeInUp 0.8s ease 0.3s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 14px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(139, 92, 246, 0.6);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text);
    border: 1px solid var(--border-strong);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.05rem;
    border-radius: 16px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
    animation: fadeInUp 0.8s ease 0.4s both;
}

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

.stat-num {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* Hero Visual - Phone Mockup */
.hero-visual {
    width: 400px;
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1;
}

.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
}

.phone-frame {
    position: relative;
    width: 100%;
    height: 100%;
    background: linear-gradient(145deg, #1a1a2e, #16162a);
    border-radius: 40px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 50px 100px -20px rgba(0, 0, 0, 0.6), 0 0 60px rgba(139, 92, 246, 0.2);
    overflow: hidden;
    animation: floatPhone 6s ease-in-out infinite;
}

@keyframes floatPhone {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.phone-screen {
    padding: 20px 16px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.phone-status-bar {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 16px;
}

.chat-header .avatar {
    width: 44px;
    height: 44px;
    background: var(--gradient-2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
}

.chat-info {
    display: flex;
    flex-direction: column;
}

.chat-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.chat-status {
    font-size: 0.75rem;
    color: #10B981;
}

.chat-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow: hidden;
}

.chat-bubble {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 0.85rem;
    line-height: 1.5;
    animation: messageSlide 0.5s ease forwards;
}

.chat-bubble.ai {
    background: rgba(139, 92, 246, 0.2);
    border: 1px solid rgba(139, 92, 246, 0.3);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    animation-delay: 0.1s;
}

.chat-bubble.user {
    background: rgba(236, 72, 153, 0.2);
    border: 1px solid rgba(236, 72, 153, 0.3);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
    animation-delay: 0.3s;
}

.chat-bubble.typing {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-muted);
    animation-delay: 0.5s;
}

.typing-dots {
    display: flex;
    gap: 4px;
}

.typing-dots span {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-10px); opacity: 1; }
}

@keyframes messageSlide {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.chat-input {
    display: flex;
    gap: 8px;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.chat-input input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 10px 14px;
    color: var(--text);
    font-size: 0.85rem;
    outline: none;
    font-family: inherit;
}

.chat-input input::placeholder {
    color: var(--text-muted);
}

.send-btn {
    background: var(--gradient-1);
    border: none;
    border-radius: 12px;
    width: 40px;
    height: 40px;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.send-btn:hover {
    transform: scale(1.05);
}

.floating-tag {
    position: absolute;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    padding: 10px 16px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    animation: floatTag 4s ease-in-out infinite;
}

.tag-1 {
    top: -20px;
    left: -60px;
    animation-delay: 0s;
}

.tag-2 {
    bottom: 80px;
    right: -70px;
    animation-delay: 1s;
}

.tag-3 {
    bottom: -20px;
    left: 40px;
    animation-delay: 2s;
}

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

.tag-icon {
    font-size: 1.1rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--primary), transparent);
    border-radius: 2px;
}

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

/* ========== Section 通用 ========== */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 18px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--primary-light);
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}

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

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========== 核心功能 ========== */
.features {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 36px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.feature-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.06);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin: 20px 0 12px;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.icon-1 { background: linear-gradient(135deg, #667eea, #764ba2); }
.icon-2 { background: linear-gradient(135deg, #f093fb, #f5576c); }
.icon-3 { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.icon-4 { background: linear-gradient(135deg, #fa709a, #fee140); }
.icon-5 { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.icon-6 { background: linear-gradient(135deg, #a8edea, #fed6e3); }

.feature-glow {
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.feature-card:hover .feature-glow {
    opacity: 1;
}

/* ========== AI角色库 ========== */
.roles {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.roles-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.role-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px;
    display: flex;
    gap: 20px;
    transition: all 0.4s ease;
    animation: slideUp 0.6s ease both;
    animation-delay: calc(var(--i) * 0.1s);
}

.role-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-strong);
    background: rgba(255, 255, 255, 0.06);
}

.role-avatar {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    flex-shrink: 0;
}

.role-info {
    flex: 1;
}

.role-info h4 {
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.role-info > span {
    font-size: 0.85rem;
    color: var(--primary-light);
    display: block;
    margin-bottom: 8px;
}

.role-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

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

.role-tags span {
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    color: var(--primary-light);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
}

.roles-cta {
    text-align: center;
}

/* ========== 产品展示 ========== */
.showcase {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.showcase-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    margin-bottom: 100px;
}

.showcase-row.reverse {
    direction: rtl;
}

.showcase-row.reverse > * {
    direction: ltr;
}

.showcase-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin: 20px 0 32px;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    color: var(--text-secondary);
}

.feature-list .check {
    width: 24px;
    height: 24px;
    background: rgba(16, 185, 129, 0.15);
    color: #10B981;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
}

.showcase-visual {
    display: flex;
    justify-content: center;
}

.visual-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 24px;
    width: 100%;
    max-width: 480px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.visual-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 20px;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background: #FF5F57; }
.dot.yellow { background: #FEBC2E; }
.dot.green { background: #28C840; }

.visual-title {
    margin-left: 12px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.visual-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.dialog-line {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-width: 85%;
}

.dialog-line.ai {
    align-self: flex-start;
}

.dialog-line.user {
    align-self: flex-end;
}

.dialog-line.ai .dialog-text {
    background: rgba(139, 92, 246, 0.15);
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: 4px 16px 16px 16px;
    padding: 10px 14px;
}

.dialog-line.user .dialog-text {
    background: rgba(236, 72, 153, 0.15);
    border: 1px solid rgba(236, 72, 153, 0.25);
    border-radius: 16px 4px 16px 16px;
    padding: 10px 14px;
}

.dialog-line.highlight .dialog-text {
    background: rgba(16, 185, 129, 0.15) !important;
    border-color: rgba(16, 185, 129, 0.3) !important;
    animation: highlightPulse 2s ease;
}

@keyframes highlightPulse {
    0%, 100% { box-shadow: none; }
    50% { box-shadow: 0 0 20px rgba(16, 185, 129, 0.2); }
}

.dialog-time {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.dialog-text {
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Creation modes */
.creation-modes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.mode-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.mode-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-3px);
}

.mode-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.mode-card h4 {
    font-size: 1rem;
    margin-bottom: 6px;
}

.mode-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Creation preview */
.creation-preview {
    width: 100%;
    max-width: 420px;
}

.creation-panel {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 32px;
    box-shadow: var(--shadow);
}

.creation-panel h3 {
    font-size: 1.3rem;
    margin-bottom: 24px;
    text-align: center;
}

.creation-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-row label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.form-row input {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px 16px;
    color: var(--text);
    font-size: 0.95rem;
    outline: none;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-row input:focus {
    border-color: var(--primary);
}

.tag-select {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag-select span {
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.85rem;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.3s ease;
}

.tag-select span:hover {
    border-color: var(--primary);
}

.tag-selected {
    background: var(--gradient-1) !important;
    color: white;
    border-color: transparent !important;
}

.style-options {
    display: flex;
    gap: 10px;
}

.style-options span {
    padding: 10px 16px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.style-options span:hover {
    border-color: var(--primary);
    background: rgba(139, 92, 246, 0.1);
}

.create-btn {
    background: var(--gradient-1);
    color: white;
    border: none;
    padding: 16px;
    border-radius: 14px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: inherit;
    transition: all 0.3s ease;
    margin-top: 8px;
}

.create-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.4);
}

/* ========== 数据统计 ========== */
.stats-section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.stat-block {
    text-align: center;
    padding: 40px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    transition: all 0.4s ease;
}

.stat-block:hover {
    transform: translateY(-5px);
    border-color: var(--border-strong);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.stat-block h3 {
    font-size: 2.2rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

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

/* ========== 用户评价 ========== */
.reviews {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.review-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.4s ease;
}

.review-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-strong);
}

.review-stars {
    font-size: 1.1rem;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.review-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.reviewer {
    display: flex;
    align-items: center;
    gap: 14px;
}

.reviewer-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.reviewer-info h4 {
    font-size: 1rem;
}

.reviewer-info span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ========== FAQ ========== */
.faq {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    margin-bottom: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active {
    border-color: var(--border-strong);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    color: var(--text);
    font-size: 1.05rem;
    font-weight: 600;
    text-align: left;
    font-family: inherit;
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: var(--primary-light);
}

.faq-icon {
    width: 24px;
    height: 24px;
    position: relative;
    transition: transform 0.3s ease;
}

.faq-icon::before,
.faq-icon::after {
    content: '';
    position: absolute;
    background: var(--text-muted);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.faq-icon::before {
    width: 14px;
    height: 2px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.faq-icon::after {
    width: 2px;
    height: 14px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.faq-item.active .faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
    opacity: 0;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 24px 24px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ========== 下载区域 ========== */
.download {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.download-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.dl-orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #8B5CF6, transparent);
    top: -100px;
    left: -100px;
    animation: float 22s ease-in-out infinite;
}

.dl-orb-2 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, #EC4899, transparent);
    bottom: -80px;
    right: -80px;
    animation: float 18s ease-in-out infinite reverse;
}

.download-card {
    background: var(--bg-card);
    backdrop-filter: blur(30px);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 56px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 56px;
    align-items: center;
}

.download-content .section-tag {
    display: inline-block;
    margin-bottom: 20px;
}

.download-content .section-title {
    text-align: left;
}

.download-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    margin: 20px 0 32px;
}

.download-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.btn-download {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--border-strong);
    padding: 14px 28px;
    gap: 14px;
    border-radius: 14px;
    color: white;
    transition: all 0.3s ease;
}

.btn-download:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-3px);
    border-color: var(--primary);
}

.btn-download-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.btn-small {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.btn-big {
    font-size: 1.1rem;
    font-weight: 700;
}

.download-features {
    display: flex;
    gap: 24px;
}

.dl-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.dl-feature .check {
    color: #10B981;
    font-weight: 700;
}

.download-info {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 220px;
}

.info-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.info-card:hover {
    border-color: var(--border-strong);
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(-5px);
}

.info-icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.info-card h4 {
    font-size: 1rem;
    margin-bottom: 8px;
    color: var(--text);
}

.info-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ========== 页脚 ========== */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 1;
    background: rgba(0, 0, 0, 0.2);
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 64px;
    margin-bottom: 60px;
}

.footer-brand .nav-logo {
    margin-bottom: 16px;
}

.footer-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    max-width: 320px;
    margin-bottom: 24px;
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.social-link:hover {
    color: var(--text);
    background: rgba(139, 92, 246, 0.15);
    border-color: var(--primary);
    transform: translateY(-3px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-col h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--text);
}

.footer-col a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.footer-col a:hover {
    color: var(--text);
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s ease;
}

.footer-bottom-links a:hover {
    color: var(--text);
}

/* ========== 动画 ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .hero-wrapper {
        flex-direction: column;
        text-align: center;
        gap: 60px;
    }

    .hero-content {
        width: 100%;
        max-width: 600px;
        text-align: center;
    }

    .hero-buttons,
    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        width: 100%;
    }

    .phone-mockup {
        width: 260px;
        height: 520px;
    }

    .floating-tag.tag-1 {
        left: -30px;
    }

    .floating-tag.tag-2 {
        right: -40px;
    }

    .showcase-row {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .showcase-row.reverse {
        direction: ltr;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .download-content .section-title {
        text-align: center;
    }

    .download-buttons,
    .download-features {
        justify-content: center;
    }

    .download-info {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }

    .info-card {
        flex: 1;
        min-width: 150px;
        max-width: 200px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 20, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 30px 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-120%);
        transition: transform 0.4s ease;
    }

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

    .hamburger {
        display: flex;
    }

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

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

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .hero {
        padding: 120px 20px 40px;
    }

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

    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }

    .stat-divider {
        display: none;
    }

    .features,
    .roles,
    .showcase,
    .stats-section,
    .reviews,
    .faq,
    .download {
        padding: 60px 0;
    }

    .roles-showcase,
    .features-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .creation-modes {
        grid-template-columns: 1fr;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .download-card {
        padding: 32px 24px;
    }

    .download-info {
        flex-direction: column;
        align-items: center;
    }

    .info-card {
        max-width: 100%;
    }

    .floating-tag {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons .btn-lg {
        width: 100%;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}