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

:root {
    --primary: #667eea;
    --primary-dark: #5a6fd6;
    --secondary: #764ba2;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-gradient-soft: linear-gradient(135deg, rgba(102,126,234,0.1) 0%, rgba(118,75,162,0.1) 100%);
    --bg: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 15px rgba(0,0,0,0.08), 0 4px 6px rgba(0,0,0,0.05);
    --shadow-lg: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
    --shadow-xl: 0 25px 50px rgba(0,0,0,0.15);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.logo-icon {
    width: 36px;
    height: 36px;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width 0.3s ease;
}

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

.nav-cta {
    padding: 8px 20px;
    background: var(--primary-gradient);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.35);
}

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

.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 24px 60px;
    overflow: hidden;
    background: linear-gradient(180deg, #f5f3ff 0%, #ede9fe 30%, #f5f3ff 60%, #ffffff 100%);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 8s ease-in-out infinite;
}

.hero-glow-1 {
    width: 400px;
    height: 400px;
    background: #667eea;
    top: -100px;
    left: -100px;
    animation-delay: 0s;
}

.hero-glow-2 {
    width: 300px;
    height: 300px;
    background: #764ba2;
    top: 50%;
    right: -50px;
    animation-delay: -2s;
}

.hero-glow-3 {
    width: 350px;
    height: 350px;
    background: #a78bfa;
    bottom: -100px;
    left: 30%;
    animation-delay: -4s;
}

@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-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(102, 126, 234, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(102, 126, 234, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    text-align: center;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.title-line {
    display: block;
    color: #1e293b;
}

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

.hero-subtitle {
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    color: #475569;
    line-height: 1.8;
    margin-bottom: 32px;
}

.hero-br {
    display: block;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.hero-backup {
    text-align: center;
    margin-bottom: 40px;
    font-size: 0.95rem;
    color: #475569;
    position: relative;
    z-index: 2;
}

.hero-backup span {
    margin-right: 8px;
}

.hero-backup a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

.hero-backup a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.btn-primary, .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-family: inherit;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-ghost {
    background: #fff;
    color: var(--text);
    border: 2px solid var(--border);
    border-radius: 10px;
}

.btn-ghost:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-gradient-soft);
    transform: translateY(-2px);
}

.btn-large {
    padding: 12px 28px;
    font-size: 1rem;
}

.btn-xlarge {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.85rem;
    color: #64748b;
}

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

.hero-preview {
    position: relative;
    z-index: 1;
    max-width: 1000px;
    margin: 48px auto 0;
}

.preview-mockup {
    background: #fff;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--border);
    animation: mockupFloat 6s ease-in-out infinite;
}

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

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

.mockup-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.mockup-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.mockup-body {
    padding: 20px;
    background: var(--bg-secondary);
}

.mockup-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.mockup-widget {
    background: #fff;
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
}

.mockup-widget-header {
    padding: 8px 12px;
    background: var(--primary-gradient);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
}

.mockup-cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    padding: 8px;
    font-size: 0.65rem;
}

.mockup-cal-grid span {
    text-align: center;
    padding: 4px 0;
    color: var(--text-secondary);
    border-radius: 4px;
}

.mockup-cal-grid .cal-other {
    color: var(--text-tertiary);
}

.mockup-cal-grid .cal-today {
    background: var(--primary-gradient);
    color: #fff;
    font-weight: 600;
}

.mockup-schedule-list {
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.mockup-schedule-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.7rem;
    padding: 4px 6px;
    background: var(--bg-secondary);
    border-radius: 6px;
}

.mockup-time {
    font-weight: 700;
    color: var(--primary);
    flex-shrink: 0;
}

.mockup-task {
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mockup-todo-list {
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mockup-todo-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.mockup-todo-item.done {
    text-decoration: line-through;
    color: var(--text-tertiary);
}

.todo-check {
    width: 14px;
    height: 14px;
    border: 1.5px solid var(--border);
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.55rem;
    color: transparent;
}

.mockup-todo-item.done .todo-check {
    background: var(--primary-gradient);
    border-color: transparent;
    color: #fff;
}

.mockup-clock {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    padding: 12px 0 4px;
}

.mockup-date {
    text-align: center;
    font-size: 0.65rem;
    color: var(--text-tertiary);
    padding-bottom: 12px;
}

.mockup-widget-cal {
    grid-column: span 1;
}

.mockup-widget-schedule {
    grid-column: span 2;
    grid-row: span 2;
}

.mockup-widget-todo {
    grid-column: span 1;
}

.mockup-widget-clock {
    grid-column: span 1;
}

.features, .showcase, .pricing, .faq {
    padding: 100px 24px;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-gradient-soft);
    color: var(--primary);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
    color: var(--text);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.features {
    background: var(--bg-secondary);
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: #fff;
}

.icon-purple { background: linear-gradient(135deg, #667eea, #764ba2); }
.icon-blue { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.icon-green { background: linear-gradient(135deg, #10b981, #059669); }
.icon-orange { background: linear-gradient(135deg, #f59e0b, #d97706); }
.icon-pink { background: linear-gradient(135deg, #ec4899, #be185d); }
.icon-cyan { background: linear-gradient(135deg, #06b6d4, #0891b2); }
.icon-indigo { background: linear-gradient(135deg, #6366f1, #4f46e5); }
.icon-red { background: linear-gradient(135deg, #ef4444, #dc2626); }
.icon-yellow { background: linear-gradient(135deg, #eab308, #ca8a04); }

.feature-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text);
}

.feature-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.showcase-content {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 100px;
}

.showcase-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.showcase-item.showcase-right .showcase-text {
    order: 2;
}

.showcase-item.showcase-right .showcase-visual {
    order: 1;
}

.showcase-text h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text);
}

.showcase-text p {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.showcase-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.showcase-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--text);
}

.check-icon {
    width: 24px;
    height: 24px;
    background: var(--primary-gradient);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
}

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

.visual-card {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.visual-layout {
    padding: 24px;
}

.layout-grid {
    display: grid;
    gap: 8px;
    width: 100%;
    height: 100%;
}

.layout-3 {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
}

.layout-item {
    background: #fff;
    border-radius: 8px;
    border: 1px solid var(--border);
    position: relative;
}

.layout-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 20%;
    background: var(--primary-gradient);
    border-radius: 8px 8px 0 0;
}

.layout-item.item-1 { animation: layoutFloat 4s ease-in-out infinite; }
.layout-item.item-2 { animation: layoutFloat 4s ease-in-out infinite 0.2s; }
.layout-item.item-3 { animation: layoutFloat 4s ease-in-out infinite 0.4s; }
.layout-item.item-4 { animation: layoutFloat 4s ease-in-out infinite 0.6s; }
.layout-item.item-5 { animation: layoutFloat 4s ease-in-out infinite 0.8s; }
.layout-item.item-6 { animation: layoutFloat 4s ease-in-out infinite 1s; }

@keyframes layoutFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.visual-cloud {
    flex-direction: column;
    gap: 24px;
}

.cloud-icon {
    font-size: 4rem;
}

.cloud-devices {
    display: flex;
    align-items: center;
    gap: 16px;
}

.device {
    font-size: 3rem;
    animation: deviceFloat 3s ease-in-out infinite;
}

.device-pc { animation-delay: 0s; }
.device-cloud { animation-delay: -1.5s; }

@keyframes deviceFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.cloud-arrows {
    display: flex;
    flex-direction: column;
    gap: 4px;
    color: var(--primary);
    font-weight: 700;
}

.arrow-up { animation: arrowUp 1.5s ease-in-out infinite; }
.arrow-down { animation: arrowDown 1.5s ease-in-out infinite; }

@keyframes arrowUp {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(-6px); opacity: 0.5; }
}

@keyframes arrowDown {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(6px); opacity: 0.5; }
}

.cloud-text {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.visual-startup {
    flex-direction: column;
    gap: 24px;
    padding: 32px;
}

.startup-toggle {
    display: flex;
    align-items: center;
    gap: 16px;
}

.toggle-track {
    width: 60px;
    height: 32px;
    background: var(--primary-gradient);
    border-radius: 16px;
    position: relative;
}

.toggle-thumb {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 24px;
    height: 24px;
    background: #fff;
    border-radius: 50%;
    box-shadow: var(--shadow);
}

.toggle-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--primary);
}

.startup-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

.startup-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: #fff;
    border-radius: 10px;
    border: 1px solid var(--border);
    font-size: 0.9rem;
    font-weight: 500;
}

.si-icon {
    font-size: 1.2rem;
}

.pricing {
    background: var(--bg-secondary);
}

.pricing-cards {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.pricing-card {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    border: 2px solid var(--border);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.pricing-popular {
    border-color: transparent;
    background: linear-gradient(135deg, rgba(102,126,234,0.05), rgba(118,75,162,0.05));
    box-shadow: 0 0 0 2px var(--primary), var(--shadow-lg);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 20px;
    background: var(--primary-gradient);
    color: #fff;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 700;
    white-space: nowrap;
}

.pricing-header {
    text-align: center;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.pricing-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.price-currency {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
}

.price-amount {
    font-size: 3rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.price-period {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-left: 4px;
}

div.price-period {
    margin-left: 0;
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.pricing-original {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    text-decoration: line-through;
    margin-bottom: 8px;
    font-weight: 500;
}

.price-discount-tag {
    display: inline-block;
    background: linear-gradient(135deg, #ff4757, #ff6b81);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 100px;
    margin-left: 10px;
    vertical-align: middle;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(255, 71, 87, 0.35);
    animation: discountBlink 2s ease-in-out infinite;
}

@keyframes discountBlink {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 2px 8px rgba(255, 71, 87, 0.35);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 4px 14px rgba(255, 71, 87, 0.6);
    }
}

.pricing-features {
    list-style: none;
    flex: 1;
    margin-bottom: 24px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    font-size: 0.9rem;
    color: var(--text);
}

.pricing-features li.pf-disabled {
    color: var(--text-tertiary);
}

.pf-check {
    color: #10b981;
    font-weight: 700;
    font-size: 1rem;
}

.pf-cross {
    color: var(--text-tertiary);
    font-weight: 500;
}

.pricing-btn {
    width: 100%;
    justify-content: center;
    padding: 14px 24px;
    font-size: 0.95rem;
    border-radius: 10px;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary);
}

.faq-item.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    text-align: left;
    font-family: inherit;
}

.faq-arrow {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-gradient-soft);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item.active .faq-arrow {
    transform: rotate(45deg);
    background: var(--primary-gradient);
    color: #fff;
}

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

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}

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

.cta-section {
    position: relative;
    padding: 100px 24px;
    text-align: center;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary-gradient);
    z-index: 0;
}

.cta-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    filter: blur(80px);
    transform: translate(-50%, -50%);
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: 12px;
}

.cta-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
}

.cta-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.cta-store-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
}

.cta-store-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    border: 2px solid transparent;
}

.cta-store-primary {
    background: #fff;
    color: #0078d4;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.cta-store-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    background: #f0f9ff;
}

.cta-store-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.cta-store-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.7);
    transform: translateY(-2px);
}

.cta-store-backup {
    background: transparent;
    color: #a78bfa;
    border: 2px solid rgba(167, 139, 250, 0.4);
}

.cta-store-backup:hover {
    background: rgba(167, 139, 250, 0.15);
    border-color: #a78bfa;
    transform: translateY(-2px);
}

.cta-version-info {
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
}

.cta-actions .btn-primary {
    background: #fff;
    color: var(--primary);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.cta-actions .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.download-options {
    display: flex;
    gap: 12px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85rem;
}

.download-sep {
    opacity: 0.5;
}

.download-password {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 100px;
    color: #fff;
    font-size: 0.85rem;
}

.pwd-label {
    opacity: 0.8;
}

.pwd-value {
    font-weight: 700;
    font-family: 'Courier New', monospace;
    letter-spacing: 1px;
    color: #fde68a;
}

.pwd-copy-btn {
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 100px;
    color: #fff;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.pwd-copy-btn:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-1px);
}

.copy-toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    padding: 12px 24px;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #fff;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    z-index: 9999;
}

.copy-toast.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.download-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
}

.download-modal.active {
    display: flex;
}

.download-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.download-modal-box {
    position: relative;
    background: #fff;
    border-radius: 24px;
    padding: 40px 36px 32px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-xl);
    animation: downloadModalIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes downloadModalIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.download-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.download-modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text);
}

.download-modal-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.download-modal-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.download-modal-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.download-modal-pwd {
    display: inline-block;
    padding: 14px 40px;
    background: var(--primary-gradient-soft);
    border: 2px dashed var(--primary);
    border-radius: 12px;
    font-size: 1.6rem;
    font-weight: 800;
    font-family: 'Courier New', monospace;
    letter-spacing: 3px;
    color: var(--primary);
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
    margin-bottom: 12px;
}

.download-modal-pwd:hover {
    background: var(--primary-gradient);
    color: #fff;
    border-style: solid;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.download-modal-pwd:active {
    transform: translateY(0);
}

.download-modal-hint {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-bottom: 28px;
    min-height: 1.2rem;
    transition: var(--transition);
}

.download-modal-hint.copied {
    color: #10b981;
    font-weight: 600;
}

.download-modal-actions {
    display: flex;
    gap: 12px;
}

.download-modal-btn {
    flex: 1;
    justify-content: center;
    padding: 12px 20px;
    font-size: 0.95rem;
    border-radius: 10px;
}

.footer {
    background: #0f172a;
    color: #fff;
    padding: 64px 24px 0;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo .logo-text {
    background: linear-gradient(135deg, #a5b4fc, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-desc {
    font-size: 0.9rem;
    color: #94a3b8;
    line-height: 1.7;
}

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

.footer-col h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #fff;
}

.footer-col a {
    display: block;
    font-size: 0.85rem;
    color: #94a3b8;
    text-decoration: none;
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-col a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #1e293b;
    padding: 24px 0;
}

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

.footer-bottom p {
    font-size: 0.85rem;
    color: #94a3b8;
    margin: 0;
}

.footer-contact-line {
    font-size: 0.8rem !important;
    color: #64748b !important;
    margin-top: 6px !important;
}

.footer-contact {
    margin-top: 8px;
    font-size: 0.8rem;
    color: #64748b;
}

.contact-sep {
    margin: 0 8px;
    opacity: 0.5;
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 968px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 80px 20px 40px;
        min-height: auto;
    }

    .hero-stats {
        gap: 20px;
    }

    .stat-divider {
        display: none;
    }

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

    .mockup-widget-cal,
    .mockup-widget-schedule,
    .mockup-widget-todo,
    .mockup-widget-clock {
        grid-column: span 1;
        grid-row: auto;
    }

    .features, .showcase, .pricing, .faq {
        padding: 60px 20px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .showcase-item {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .showcase-item.showcase-right .showcase-text,
    .showcase-item.showcase-right .showcase-visual {
        order: 0;
    }

    .showcase-content {
        gap: 60px;
    }

    .pricing-cards {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .pricing-card.pricing-popular {
        transform: none;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

    .hero-br {
        display: none;
    }
}

@media (max-width: 640px) {
    .nav-cta {
        display: none;
    }

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

    .btn-large, .btn-ghost.btn-large {
        width: 100%;
        justify-content: center;
    }

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

    .feature-card {
        padding: 24px;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .hero-stats {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .stat-item {
        padding: 12px;
    }

    .download-options {
        flex-direction: column;
        gap: 4px;
    }

    .download-sep {
        display: none;
    }
}

/* 在线客服悬浮球 */
.float-customer-service {
    position: fixed;
    right: 24px;
    bottom: 32px;
    z-index: 999;
}

.float-customer-service a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}

.float-service-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px -8px rgba(102, 126, 234, 0.6);
    transition: all 0.25s ease;
    position: relative;
    background-size: 200% 200%;
    animation: serviceGradientShift 6s ease infinite;
}

@keyframes serviceGradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.float-service-icon:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 40px -8px rgba(102, 126, 234, 0.8);
}

.float-service-icon svg {
    width: 28px;
    height: 28px;
    fill: #fff;
}

.float-service-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    background: #ef4444;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 5px;
    border: 2px solid #fff;
}

.float-service-text {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary, #6b7280);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 3px 10px;
    border-radius: 100px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    white-space: nowrap;
    opacity: 0;
    transform: translateY(4px);
    transition: all 0.2s ease;
}

.float-customer-service:hover .float-service-text {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 640px) {
    .float-service-text {
        display: none;
    }
}