/* 全局样式 */
:root {
    /* 品牌色彩体系 */
    --primary: #07C160;
    --secondary: #1890FF;
    --accent: #FF6B35;
    --bg-light: #F8F9FA;
    --bg-dark: #2C2C2C;
    --card-bg: #FFFFFF;
    --gradient-bg: linear-gradient(135deg, #E5F6EE 0%, #F8F8F8 100%);
    
    /* 文字颜色 */
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    
    /* 圆角规范 */
    --radius-standard: 8px;
    --radius-card: 12px;
    --radius-button: 16px;
    --radius-search: 18px;
    
    /* 间距规范 */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    
    /* 动画规范 */
    --animation-refresh: 800ms;
    --animation-rotate: 1s;
    --animation-scale: 300ms;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.nav-logo .logo-image {
    width: 32px;
    height: 32px;
    margin-right: var(--spacing-sm);
    border-radius: 6px;
    object-fit: cover;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color var(--animation-scale) ease;
}

.nav-menu a:hover {
    color: var(--primary);
}

.nav-creator-btn {
    color: var(--primary) !important;
    border: 1px solid var(--primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-button);
    transition: all var(--animation-scale) ease;
}

.nav-creator-btn:hover {
    background: rgba(7, 193, 96, 0.08);
    transform: translateY(-2px);
}

.nav-cta-btn,
.download-btn {
    background: var(--primary);
    color: white !important;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-button);
    transition: all var(--animation-scale) ease;
}

.nav-cta-btn:hover,
.download-btn:hover {
    background: #06A050;
    transform: translateY(-2px);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--animation-scale) ease;
}

/* 主页横幅 */
.hero {
    position: relative;
    overflow: hidden;
    background: #eef8f2;
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

/* —— Hero 本地生活动态背景 —— */
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-bg-orbs {
    position: absolute;
    inset: 0;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.7;
    animation: heroOrbFloat 8s ease-in-out infinite;
}

.hero-orb--1 {
    width: min(48vw, 380px);
    height: min(48vw, 380px);
    top: 5%;
    left: 52%;
    background: rgba(7, 193, 96, 0.45);
    animation-delay: 0s;
}

.hero-orb--2 {
    width: min(40vw, 300px);
    height: min(40vw, 300px);
    top: 38%;
    left: 65%;
    background: rgba(24, 144, 255, 0.38);
    animation-delay: -2.5s;
    animation-duration: 9s;
}

.hero-orb--3 {
    width: min(34vw, 260px);
    height: min(34vw, 260px);
    top: 18%;
    left: 76%;
    background: rgba(255, 107, 53, 0.32);
    animation-delay: -5s;
    animation-duration: 7s;
}

.hero-orb--4 {
    width: min(28vw, 220px);
    height: min(28vw, 220px);
    top: 58%;
    left: 58%;
    background: rgba(124, 92, 255, 0.28);
    animation-delay: -1.2s;
    animation-duration: 10s;
}

.hero-orb--5 {
    width: min(32vw, 250px);
    height: min(32vw, 250px);
    top: 72%;
    left: 80%;
    background: rgba(7, 193, 96, 0.25);
    animation-delay: -3.8s;
    animation-duration: 11s;
}

.hero-bg-grid {
    position: absolute;
    inset: -30%;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(7, 193, 96, 0.12) 0%, transparent 42%),
        radial-gradient(circle at 78% 68%, rgba(24, 144, 255, 0.14) 0%, transparent 40%),
        linear-gradient(rgba(7, 193, 96, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(7, 193, 96, 0.06) 1px, transparent 1px);
    background-size: auto, auto, 40px 40px, 40px 40px;
    animation: heroGridDrift 12s linear infinite;
}

.hero-bg-radar {
    position: absolute;
    top: 50%;
    left: 72%;
    width: min(55vw, 520px);
    height: min(55vw, 520px);
    margin: calc(min(27.5vw, 260px) * -1) 0 0 calc(min(27.5vw, 260px) * -1);
    border-radius: 50%;
    border: 2px solid rgba(7, 193, 96, 0.12);
    background:
        repeating-radial-gradient(circle at center, transparent 0, transparent 38px, rgba(7, 193, 96, 0.05) 38px, rgba(7, 193, 96, 0.05) 40px),
        conic-gradient(from 0deg at 50% 50%, transparent 0deg, rgba(7, 193, 96, 0.14) 42deg, transparent 84deg);
    opacity: 0.85;
    animation: heroRadarSpin 6s linear infinite, heroRadarFade 3s ease-in-out infinite;
}

.hero-bg-sweep {
    position: absolute;
    top: -40%;
    left: -60%;
    width: 55%;
    height: 180%;
    background: linear-gradient(
        100deg,
        transparent 0%,
        rgba(255, 255, 255, 0.08) 35%,
        rgba(255, 255, 255, 0.45) 50%,
        rgba(255, 255, 255, 0.08) 65%,
        transparent 100%
    );
    transform: rotate(12deg);
    animation: heroSweep 4.5s ease-in-out infinite;
}

.hero-bg-slides {
    position: absolute;
    inset: 0;
}

.hero-bg-slide {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: center;
    padding-right: 8%;
    gap: 12px;
    opacity: 0;
    background-size: 240% 240%;
    transform: scale(0.94) translateX(3%);
    animation: heroSceneCycle 18s cubic-bezier(0.4, 0, 0.2, 1) infinite,
        heroGradientShift 5s ease-in-out infinite;
}

.hero-bg-slide i {
    font-size: clamp(7rem, 18vw, 14rem);
    line-height: 1;
    opacity: 0.2;
    transform-origin: center center;
    animation: heroIconPulse 2.2s ease-in-out infinite;
}

.hero-bg-slide span {
    font-size: clamp(1.1rem, 2.6vw, 1.6rem);
    font-weight: 700;
    letter-spacing: 0.1em;
    opacity: 0.38;
    color: var(--text-primary);
    text-shadow: 0 2px 16px rgba(255, 255, 255, 0.6);
    animation: heroLabelPulse 2.2s ease-in-out infinite;
}

.hero-bg-slide--shop span {
    font-size: clamp(1.2rem, 3vw, 1.85rem);
    color: #059669;
    opacity: 0.45;
}

.hero-bg-slide--shop {
    background: linear-gradient(125deg, #e8faf0 0%, #fff8ee 48%, #f5fbff 100%);
    animation-delay: 0s, 0s;
}

.hero-bg-slide--shop i { color: #07c160; }

.hero-bg-slide--event {
    background: linear-gradient(125deg, #e8f4ff 0%, #eefaf3 50%, #fff5eb 100%);
    animation-delay: 3.6s, 0s;
}

.hero-bg-slide--event i { color: #1890ff; }

.hero-bg-slide--moment {
    background: linear-gradient(125deg, #fff4e8 0%, #eaf8f0 45%, #f0f5ff 100%);
    animation-delay: 7.2s, 0s;
}

.hero-bg-slide--moment i { color: #ff6b35; }

.hero-bg-slide--schedule {
    background: linear-gradient(125deg, #f0ecff 0%, #e8faf3 50%, #fff9ee 100%);
    animation-delay: 10.8s, 0s;
}

.hero-bg-slide--schedule i { color: #7c5cff; }

.hero-bg-slide--market {
    background: linear-gradient(125deg, #e5f8ef 0%, #e8f2ff 55%, #faf5e8 100%);
    animation-delay: 14.4s, 0s;
}

.hero-bg-slide--market i { color: #06a050; }

.hero-bg-floats {
    position: absolute;
    inset: 0;
}

.hero-float-chip {
    position: absolute;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(7, 193, 96, 0.18);
    box-shadow: 0 8px 28px rgba(15, 35, 52, 0.12);
    backdrop-filter: blur(8px);
    animation: heroChipDrift 4.5s ease-in-out infinite;
}

.hero-float-chip i {
    color: var(--primary);
    font-size: 0.9rem;
}

.hero-float-chip--1 { top: 18%; left: 52%; animation-duration: 4s; animation-delay: 0s; }
.hero-float-chip--2 { top: 32%; left: 68%; animation-duration: 5.2s; animation-delay: -1.2s; }
.hero-float-chip--3 { top: 48%; left: 58%; animation-duration: 4.8s; animation-delay: -2.4s; }
.hero-float-chip--4 { top: 62%; left: 72%; animation-duration: 5.5s; animation-delay: -0.8s; }
.hero-float-chip--5 { top: 24%; left: 78%; animation-duration: 4.2s; animation-delay: -3s; }
.hero-float-chip--6 { top: 70%; left: 48%; animation-duration: 5.8s; animation-delay: -1.8s; }

.hero-bg-pins {
    position: absolute;
    inset: 0;
}

.hero-pin {
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 0 6px rgba(7, 193, 96, 0.22);
    animation: heroPinPulse 1.6s ease-in-out infinite;
}

.hero-pin::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 12px;
    height: 12px;
    margin: -6px 0 0 -6px;
    border-radius: 50%;
    border: 2px solid rgba(7, 193, 96, 0.45);
    animation: heroPinRipple 1.6s ease-out infinite;
}

.hero-pin::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 100%;
    width: 2px;
    height: 22px;
    margin-bottom: 2px;
    transform: translateX(-50%);
    background: linear-gradient(to top, rgba(7, 193, 96, 0.65), transparent);
    border-radius: 2px;
    animation: heroPinStem 1.6s ease-in-out infinite;
}

.hero-pin--1 { top: 28%; left: 62%; animation-delay: 0s; }
.hero-pin--2 { top: 45%; left: 74%; animation-delay: 0.35s; }
.hero-pin--3 { top: 58%; left: 66%; animation-delay: 0.7s; }
.hero-pin--4 { top: 36%; left: 82%; animation-delay: 1.05s; }
.hero-pin--5 { top: 68%; left: 76%; animation-delay: 1.4s; }
.hero-pin--6 { top: 52%; left: 56%; animation-delay: 0.2s; }
.hero-pin--7 { top: 20%; left: 70%; animation-delay: 0.9s; }

.hero-bg-shine {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        105deg,
        rgba(255, 255, 255, 0.92) 0%,
        rgba(255, 255, 255, 0.78) 38%,
        rgba(255, 255, 255, 0.4) 62%,
        rgba(255, 255, 255, 0.12) 100%
    );
    animation: heroShineBreathe 5s ease-in-out infinite;
}

@keyframes heroSceneCycle {
    0% { opacity: 0; transform: scale(0.9) translateX(5%); }
    4% { opacity: 1; transform: scale(1) translateX(0); }
    16% { opacity: 1; transform: scale(1.02) translateX(-1%); }
    19% { opacity: 0; transform: scale(1.06) translateX(-4%); }
    20%, 100% { opacity: 0; transform: scale(0.92) translateX(5%); }
}

@keyframes heroGradientShift {
    0%, 100% { background-position: 0% 40%; }
    33% { background-position: 100% 60%; }
    66% { background-position: 50% 0%; }
}

@keyframes heroOrbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(-40px, 28px) scale(1.12); }
    50% { transform: translate(32px, -24px) scale(0.9); }
    75% { transform: translate(-18px, -36px) scale(1.08); }
}

@keyframes heroRadarSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes heroRadarFade {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.95; }
}

@keyframes heroSweep {
    0% { left: -70%; opacity: 0; }
    15% { opacity: 1; }
    50% { left: 110%; opacity: 1; }
    85% { opacity: 0; }
    100% { left: 110%; opacity: 0; }
}

@keyframes heroIconPulse {
    0%, 100% { transform: scale(1) rotate(-2deg); opacity: 0.18; }
    50% { transform: scale(1.1) rotate(3deg); opacity: 0.32; }
}

@keyframes heroLabelPulse {
    0%, 100% { transform: translateY(0); opacity: 0.32; }
    50% { transform: translateY(-6px); opacity: 0.48; }
}

@keyframes heroGridDrift {
    0% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(40px, 40px) rotate(0.5deg); }
    100% { transform: translate(80px, 80px) rotate(1deg); }
}

@keyframes heroChipDrift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(14px, -16px) scale(1.03); }
    50% { transform: translate(-10px, -22px) scale(1); }
    75% { transform: translate(8px, -8px) scale(0.98); }
}

@keyframes heroPinPulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 6px rgba(7, 193, 96, 0.2); }
    50% { transform: scale(1.25); box-shadow: 0 0 0 14px rgba(7, 193, 96, 0.08); }
}

@keyframes heroPinRipple {
    0% { transform: scale(1); opacity: 0.7; }
    100% { transform: scale(4.5); opacity: 0; }
}

@keyframes heroPinStem {
    0%, 100% { height: 18px; opacity: 0.7; }
    50% { height: 28px; opacity: 1; }
}

@keyframes heroShineBreathe {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.88; }
}

@media (prefers-reduced-motion: reduce) {
    .hero-bg-grid,
    .hero-bg-slide,
    .hero-float-chip,
    .hero-pin,
    .hero-orb,
    .hero-bg-slide i,
    .hero-bg-radar,
    .hero-bg-sweep,
    .hero-bg-shine,
    .hero-bg-slide span,
    .hero-pin::before,
    .hero-pin::after {
        animation: none !important;
    }

    .hero-bg-slide--shop {
        opacity: 1;
    }

    .hero-bg-slide:not(.hero-bg-slide--shop) {
        opacity: 0;
    }
}

.hero-container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.highlight {
    color: var(--primary);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100%;
    height: 8px;
    background: rgba(7, 193, 96, 0.2);
    z-index: -1;
    border-radius: 4px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xxl);
}

.btn-primary, .btn-secondary {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-button);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--animation-scale) ease;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: #06A050;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(7, 193, 96, 0.3);
}

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

.btn-secondary:hover {
    background: #1677DD;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(24, 144, 255, 0.3);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 手机模拟器 */
.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    margin: 0 auto;
    background: linear-gradient(145deg, #2C2C2C, #1a1a1a);
    border-radius: 30px;
    padding: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 22px;
    overflow: hidden;
    position: relative;
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.3s ease;
}

/* APP预览界面 */
.app-preview {
    height: 100%;
    background: var(--gradient-bg);
    display: flex;
    flex-direction: column;
}

.app-header {
    background: white;
    padding: 8px 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.status-icons {
    display: flex;
    gap: 4px;
    font-size: 10px;
}

.app-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-primary);
}

.app-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.feature-highlight {
    text-align: center;
    color: var(--text-primary);
}

.feature-highlight i {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 16px;
}

.feature-highlight h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.feature-highlight p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* APP界面展示区域 */
.app-showcase {
    padding: var(--spacing-xxl) 0;
    background: white;
}

.app-screens {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

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

.screen-mockup {
    width: 200px;
    height: 400px;
    margin: 0 auto var(--spacing-lg);
    background: white;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.1);
    transition: all var(--animation-scale) ease;
    cursor: pointer;
}

.screen-mockup:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.app-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--animation-scale) ease;
}

.screen-mockup:hover .app-screenshot {
    transform: scale(1.05);
}



.screen-item h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.screen-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 章节通用样式 */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 核心价值 */
.features {
    padding: var(--spacing-xxl) 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-card);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all var(--animation-scale) ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-bg);
    border-radius: var(--radius-card);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.feature-icon i {
    font-size: 24px;
    color: var(--primary);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.feature-card ul {
    list-style: none;
}

.feature-card li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding-left: var(--spacing-lg);
}

.feature-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

/* 六大场景 */
.scenarios {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-light);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.scenario-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-card);
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all var(--animation-scale) ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.scenario-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.scenario-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.scenario-icon i {
    font-size: 32px;
    color: var(--primary);
}

.scenario-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.scenario-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 为什么选择扩信 */
.why-choose {
    padding: var(--spacing-xxl) 0;
    background: white;
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.reason-item {
    text-align: center;
    padding: var(--spacing-xl);
}

.reason-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.reason-icon i {
    font-size: 32px;
    color: var(--primary);
}

.reason-item h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.reason-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 关于我们 */
.about {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.about-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.about-mission {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.brand-values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.value-item {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-card);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.value-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
}

.value-item p {
    color: var(--text-secondary);
}

.team-illustration {
    width: 200px;
    height: 200px;
    background: var(--gradient-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.team-illustration i {
    font-size: 80px;
    color: var(--primary);
}

/* 下载区域 */
.download {
    padding: var(--spacing-xxl) 0;
    background: var(--gradient-bg);
    text-align: center;
}

.download-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.download-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.btn-primary.large, .btn-secondary.large {
    padding: var(--spacing-lg) var(--spacing-xl);
    min-width: 200px;
}

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

.btn-label {
    font-size: 1rem;
    font-weight: 600;
}

.btn-subtitle {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* 下载按钮容器 */
.download-btn-container {
    position: relative;
    display: inline-block;
}

/* 二维码弹窗 */
.qr-code-popup {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    border-radius: var(--radius-card);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--animation-scale) ease;
    z-index: 1000;
    min-width: 150px;
    text-align: center;
}

.qr-code-popup::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: white;
}

.qr-code-popup.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-5px);
}

.qr-code-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.qr-code-image {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 140px;
    min-height: 140px;
    padding: 4px;
    background: #fff;
    border-radius: 8px;
}

.qr-code-image img,
.qr-code-image canvas {
    display: block;
    max-width: 140px;
    max-height: 140px;
}

.qr-code-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-align: center;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .qr-code-popup {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        margin: 0;
        z-index: 10000;
    }
    
    .qr-code-popup::after {
        display: none;
    }
    
    .qr-code-popup.show {
        transform: translate(-50%, -50%);
    }
    
    /* 移动端遮罩层 */
    .qr-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 9999;
        opacity: 0;
        visibility: hidden;
        transition: all var(--animation-scale) ease;
    }
    
    .qr-overlay.show {
        opacity: 1;
        visibility: visible;
    }
}



/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.footer-logo .logo-image {
    width: 24px;
    height: 24px;
    margin-right: var(--spacing-sm);
    border-radius: 4px;
    object-fit: cover;
}

.footer-section p {
    color: #CCCCCC;
    line-height: 1.6;
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: #CCCCCC;
    text-decoration: none;
    transition: color var(--animation-scale) ease;
}

.footer-section a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid #444;
    padding-top: var(--spacing-lg);
    text-align: center;
    color: #CCCCCC;
}

.footer-bottom p {
    margin: 0 0 8px;
}

.footer-bottom p:last-child {
    margin-bottom: 0;
}

.footer-icp a {
    color: #AAAAAA;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--animation-scale) ease;
}

.footer-icp a:hover {
    color: var(--primary);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-logo .logo-image {
        width: 28px;
        height: 28px;
    }
    
    .footer-logo .logo-image {
        width: 20px;
        height: 20px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-bg-slide {
        align-items: center;
        padding-right: 0;
        padding-top: 12%;
    }

    .hero-bg-slide i {
        font-size: 5.5rem;
    }

    .hero-float-chip {
        font-size: 0.72rem;
        padding: 8px 11px;
    }

    .hero-float-chip--1 { top: 14%; left: 8%; }
    .hero-float-chip--2 { top: 22%; left: 62%; }
    .hero-float-chip--3 { top: 30%; left: 28%; }
    .hero-float-chip--4 { top: 38%; left: 72%; }
    .hero-float-chip--5 { top: 8%; left: 42%; }
    .hero-float-chip--6 { top: 46%; left: 12%; }

    .hero-pin--1 { top: 52%; left: 18%; }
    .hero-pin--2 { top: 58%; left: 55%; }
    .hero-pin--3 { top: 64%; left: 78%; }
    .hero-pin--4 { top: 48%; left: 85%; }
    .hero-pin--5 { top: 70%; left: 38%; }
    .hero-pin--6 { top: 56%; left: 8%; }
    .hero-pin--7 { top: 12%; left: 75%; }

    .hero-bg-radar {
        top: 42%;
        left: 50%;
        width: min(90vw, 400px);
        height: min(90vw, 400px);
        margin: calc(min(45vw, 200px) * -1) 0 0 calc(min(45vw, 200px) * -1);
        opacity: 0.65;
    }

    .hero-bg-shine {
        background: linear-gradient(
            180deg,
            rgba(255, 255, 255, 0.92) 0%,
            rgba(255, 255, 255, 0.78) 55%,
            rgba(255, 255, 255, 0.5) 100%
        );
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .reasons-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .brand-values {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
    
    .app-screens {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .screen-mockup {
        width: 180px;
        height: 360px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .phone-mockup {
        width: 200px;
        height: 400px;
    }
}

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

.feature-card,
.scenario-card,
.reason-item {
    animation: fadeInUp 0.6s ease forwards;
}

/* 滚动平滑 */
html {
    scroll-behavior: smooth;
}

/* 加载动画 */
.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* APP截图模态框 */
.screenshot-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    background: white;
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: scaleIn 0.3s ease;
}

.modal-content img {
    width: 100%;
    height: auto;
    display: block;
}

.close-modal {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 24px;
    color: white;
    cursor: pointer;
    background: rgba(0, 0, 0, 0.5);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--animation-scale) ease;
}

.close-modal:hover {
    background: rgba(0, 0, 0, 0.8);
}

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

@keyframes scaleIn {
    from { 
        opacity: 0;
        transform: scale(0.8);
    }
    to { 
        opacity: 1;
        transform: scale(1);
    }
}