/* 简记产品介绍页样式 - 全面升级版 */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333333;
    background: #f8fafc;
    overflow-x: hidden;
}

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

/* ===== 背景装饰 ===== */
.bg-decoration {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    animation: blobFloat 20s ease-in-out infinite;
}

.blob-1 {
    width: 600px;
    height: 600px;
    background: #4CAF50;
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.blob-2 {
    width: 500px;
    height: 500px;
    background: #81c784;
    bottom: -150px;
    left: -100px;
    animation-delay: -7s;
}

.blob-3 {
    width: 400px;
    height: 400px;
    background: #a5d6a7;
    top: 50%;
    left: 50%;
    animation-delay: -14s;
}

@keyframes blobFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(20px, 10px) scale(1.02); }
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(76, 175, 80, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(76, 175, 80, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid rgba(76, 175, 80, 0.1);
}

.nav-container {
    display: flex;
    align-items: center;
    height: 72px;
    gap: 24px;
}

.nav-container .logo {
    flex-shrink: 0;
}

.nav-links {
    margin-left: auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: #4CAF50;
}

/* 返回按钮 */
.nav-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    color: #475569;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 24px;
    background: rgba(76, 175, 80, 0.08);
    transition: all 0.2s ease;
}

.nav-back i {
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
}

.nav-back:hover {
    background: rgba(76, 175, 80, 0.15);
    color: #4CAF50;
}

.nav-back:hover i {
    transform: translateX(-3px);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #4CAF50, #66BB6A);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.logo-icon i {
    width: 22px;
    height: 22px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-links a {
    text-decoration: none;
    color: #64748b;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #4CAF50;
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: #4CAF50;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #1e293b, #334155);
    color: #ffffff;
    padding: 12px 24px;
    border-radius: 24px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(30, 41, 59, 0.2);
    white-space: nowrap;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 41, 59, 0.3);
}

.nav-cta-icon {
    width: 16px;
    height: 16px;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: #333;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero 区域 ===== */
.hero {
    padding: 140px 0 100px;
    position: relative;
    z-index: 1;
    background: linear-gradient(180deg, #f0fdf4 0%, #f8fafc 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid rgba(76, 175, 80, 0.2);
    padding: 8px 16px;
    border-radius: 24px;
    font-size: 14px;
    color: #4CAF50;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-badge i {
    width: 16px;
    height: 16px;
}

.hero-title {
    font-size: 60px;
    font-weight: 900;
    line-height: 1.15;
    color: #0f172a;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.hero-title .highlight {
    background: linear-gradient(135deg, #4CAF50, #66BB6A);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.hero-subtitle {
    font-size: 20px;
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #4CAF50, #43a047);
    color: #ffffff;
    padding: 16px 32px;
    border-radius: 14px;
    text-decoration: none;
    font-size: 17px;
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(76, 175, 80, 0.35);
    transition: all 0.3s ease;
}

.btn-primary i {
    width: 20px;
    height: 20px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 35px rgba(76, 175, 80, 0.45);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #ffffff;
    color: #334155;
    padding: 16px 32px;
    border-radius: 14px;
    text-decoration: none;
    font-size: 17px;
    font-weight: 600;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.btn-secondary i {
    width: 20px;
    height: 20px;
}

.btn-secondary:hover {
    border-color: #4CAF50;
    color: #4CAF50;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

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

.hero-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: #475569;
    font-weight: 500;
}

.hero-feature .feature-icon {
    width: 36px;
    height: 36px;
    background: rgba(76, 175, 80, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4CAF50;
}

.hero-feature .feature-icon i {
    width: 18px;
    height: 18px;
}

/* 手机 Mockup */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #1e293b, #0f172a);
    border-radius: 44px;
    padding: 14px;
    box-shadow:
        0 25px 60px rgba(0, 0, 0, 0.2),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    position: relative;
}

.phone-notch {
    display: none;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #f5f5f5;
    border-radius: 32px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* 手机截图轮播 */
.phone-carousel {
    background: #ffffff;
    position: relative;
    user-select: none;
}

.carousel-track {
    flex: 1;
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    background: #ffffff;
}

.carousel-slide {
    flex: 0 0 100%;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #ffffff;
    pointer-events: none;
    display: block;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1e293b;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s ease, background 0.2s ease;
    z-index: 5;
}

.carousel-btn i {
    width: 18px;
    height: 18px;
}

.carousel-prev {
    left: 8px;
}

.carousel-next {
    right: 8px;
}

.phone-carousel:hover .carousel-btn,
.phone-carousel.touch-active .carousel-btn {
    opacity: 1;
}

.carousel-btn:hover {
    background: #ffffff;
    color: #4CAF50;
}

.carousel-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 6px;
    z-index: 5;
}

.dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    cursor: pointer;
}

.dot.active {
    width: 18px;
    border-radius: 3px;
    background: #4CAF50;
}

.mockup-header {
    background: #ffffff;
    padding: 40px 16px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #f0f0f0;
}

.mockup-date {
    font-size: 15px;
    font-weight: 700;
    color: #1e293b;
}

.mockup-arrows {
    display: flex;
    gap: 4px;
    color: #94a3b8;
}

.mockup-arrows i {
    width: 18px;
    height: 18px;
}

.mockup-stats {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
    padding: 14px;
    background: #ffffff;
    margin: 10px;
    border-radius: 14px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

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

.stat-label {
    font-size: 11px;
    color: #94a3b8;
    margin-bottom: 4px;
    font-weight: 500;
}

.stat-value {
    font-size: 14px;
    font-weight: 800;
}

.stat-value.income { color: #4CAF50; }
.stat-value.expense { color: #FF5722; }
.stat-value.balance { color: #1e293b; }

.mockup-records {
    flex: 1;
    padding: 0 10px 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    overflow: hidden;
}

.mockup-record {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #ffffff;
    padding: 12px;
    border-radius: 12px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.record-icon {
    width: 36px;
    height: 36px;
    background: #f0fdf4;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4CAF50;
    flex-shrink: 0;
}

.record-icon i {
    width: 18px;
    height: 18px;
}

.record-info { flex: 1; min-width: 0; }

.record-name {
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
}

.record-category {
    font-size: 11px;
    color: #94a3b8;
}

.record-amount {
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}

.record-amount.income { color: #4CAF50; }
.record-amount.expense { color: #FF5722; }

/* 浮动装饰卡片 */
.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 14px;
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 600;
    color: #1e293b;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.5);
    animation: floatCard 6s ease-in-out infinite;
}

.floating-card i {
    width: 18px;
    height: 18px;
    color: #4CAF50;
}

.card-1 {
    top: 60px;
    right: -20px;
    animation-delay: 0s;
}

.card-2 {
    bottom: 100px;
    left: -30px;
    animation-delay: -3s;
}

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

/* ===== 数据统计条 ===== */
.stats-bar {
    background: #ffffff;
    padding: 48px 0;
    border-top: 1px solid #f1f5f9;
    border-bottom: 1px solid #f1f5f9;
    position: relative;
    z-index: 1;
}

.stats-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
}

.stat-item {
    text-align: center;
    min-width: 120px;
}

.stat-number {
    font-size: 48px;
    font-weight: 900;
    color: #4CAF50;
    line-height: 1;
    display: inline;
}

.stat-unit {
    font-size: 24px;
    font-weight: 700;
    color: #4CAF50;
    display: inline;
}

.stat-label {
    font-size: 14px;
    color: #94a3b8;
    margin-top: 8px;
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 50px;
    background: #e2e8f0;
}

/* ===== 通用区块样式 ===== */
section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: #4CAF50;
    letter-spacing: 3px;
    margin-bottom: 16px;
    background: rgba(76, 175, 80, 0.08);
    padding: 6px 16px;
    border-radius: 20px;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-title .highlight {
    background: linear-gradient(135deg, #4CAF50, #66BB6A);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    font-size: 18px;
    color: #64748b;
}

/* ===== 痛点展示区 ===== */
.pain-points {
    background: #ffffff;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.comparison-card {
    background: #f8fafc;
    border-radius: 20px;
    padding: 40px 32px;
    position: relative;
    transition: transform 0.3s ease;
}

.comparison-card:hover {
    transform: translateY(-4px);
}

.comparison-card.negative {
    border: 2px solid #fee2e2;
}

.comparison-card.positive {
    border: 2px solid #dcfce7;
    background: linear-gradient(135deg, #f0fdf4, #ffffff);
    box-shadow: 0 8px 30px rgba(76, 175, 80, 0.1);
}

.comparison-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.comparison-icon i {
    width: 26px;
    height: 26px;
}

.negative .comparison-icon {
    background: #fee2e2;
    color: #ef4444;
}

.positive .comparison-icon {
    background: #dcfce7;
    color: #4CAF50;
}

.comparison-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
    color: #0f172a;
}

.comparison-list {
    list-style: none;
}

.comparison-list li {
    padding: 12px 0;
    font-size: 15px;
    color: #475569;
    border-bottom: 1px solid #f1f5f9;
    display: flex;
    align-items: center;
    gap: 12px;
}

.comparison-list li i {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.comparison-list li:last-child {
    border-bottom: none;
}

.negative .comparison-list li i {
    color: #ef4444;
}

.positive .comparison-list li i {
    color: #4CAF50;
}

/* ===== 使用步骤 ===== */
.how-it-works {
    background: linear-gradient(180deg, #f8fafc 0%, #f0fdf4 100%);
}

.steps-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.step-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 40px 32px;
    text-align: center;
    flex: 1;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    border: 1px solid #f1f5f9;
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(76, 175, 80, 0.12);
    border-color: rgba(76, 175, 80, 0.2);
}

.step-number {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #4CAF50, #66BB6A);
    color: white;
    font-size: 13px;
    font-weight: 800;
    padding: 4px 16px;
    border-radius: 20px;
    letter-spacing: 1px;
}

.step-icon-wrapper {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 12px auto 24px;
    color: #4CAF50;
}

.step-icon-wrapper i {
    width: 32px;
    height: 32px;
}

.step-title {
    font-size: 22px;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 12px;
}

.step-desc {
    font-size: 15px;
    color: #64748b;
    line-height: 1.7;
}

.step-connector {
    color: #cbd5e1;
    flex-shrink: 0;
}

.step-connector i {
    width: 28px;
    height: 28px;
}

/* ===== 核心功能展示 ===== */
.features {
    background: #ffffff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: #f8fafc;
    border-radius: 20px;
    padding: 36px 28px;
    transition: all 0.3s ease;
    border: 1px solid #f1f5f9;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #4CAF50, #66BB6A);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    background: #ffffff;
    border-color: rgba(76, 175, 80, 0.15);
}

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

.feature-icon-wrapper {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: #4CAF50;
}

.feature-icon-wrapper i {
    width: 26px;
    height: 26px;
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 12px;
}

.feature-desc {
    font-size: 15px;
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 16px;
}

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

.tag {
    font-size: 12px;
    font-weight: 600;
    color: #4CAF50;
    background: rgba(76, 175, 80, 0.08);
    padding: 4px 12px;
    border-radius: 20px;
}

/* ===== 使用场景展示 ===== */
.scenarios {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.scenario-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 32px;
    display: flex;
    gap: 24px;
    align-items: flex-start;
    transition: all 0.3s ease;
    border: 1px solid #f1f5f9;
}

.scenario-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
    border-color: rgba(76, 175, 80, 0.15);
}

.scenario-icon-wrapper {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4CAF50;
    flex-shrink: 0;
}

.scenario-icon-wrapper i {
    width: 26px;
    height: 26px;
}

.scenario-content { flex: 1; }

.scenario-title {
    font-size: 20px;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 8px;
}

.scenario-desc {
    font-size: 15px;
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 16px;
}

.scenario-flow {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.flow-step {
    font-size: 13px;
    font-weight: 600;
    color: #4CAF50;
    background: rgba(76, 175, 80, 0.08);
    padding: 4px 12px;
    border-radius: 20px;
}

.flow-arrow {
    width: 14px;
    height: 14px;
    color: #cbd5e1;
}

/* ===== 用户评价 ===== */
.testimonials {
    background: #ffffff;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: #f8fafc;
    border-radius: 20px;
    padding: 32px;
    border: 1px solid #f1f5f9;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
    background: #ffffff;
}

.testimonial-stars {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    color: #fbbf24;
}

.testimonial-stars i {
    width: 18px;
    height: 18px;
    fill: #fbbf24;
}

.testimonial-text {
    font-size: 15px;
    color: #475569;
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4CAF50;
}

.author-avatar i {
    width: 22px;
    height: 22px;
}

.author-name {
    font-size: 15px;
    font-weight: 700;
    color: #0f172a;
}

.author-role {
    font-size: 13px;
    color: #94a3b8;
}

/* ===== FAQ ===== */
.faq {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

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

.faq-item {
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid #f1f5f9;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(76, 175, 80, 0.2);
}

.faq-item.active {
    border-color: rgba(76, 175, 80, 0.3);
    box-shadow: 0 4px 20px rgba(76, 175, 80, 0.08);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: #0f172a;
    transition: color 0.3s ease;
}

.faq-question:hover {
    color: #4CAF50;
}

.faq-icon {
    width: 20px;
    height: 20px;
    color: #94a3b8;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
    color: #4CAF50;
}

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

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 24px 20px;
    font-size: 15px;
    color: #64748b;
    line-height: 1.8;
}

/* ===== CTA 区域 ===== */
.cta {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.cta-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.cta-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
}

.cta-blob-1 {
    width: 400px;
    height: 400px;
    background: #4CAF50;
    top: -100px;
    right: -100px;
}

.cta-blob-2 {
    width: 300px;
    height: 300px;
    background: #66BB6A;
    bottom: -80px;
    left: -80px;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(76, 175, 80, 0.15);
    border: 1px solid rgba(76, 175, 80, 0.3);
    padding: 8px 16px;
    border-radius: 24px;
    font-size: 14px;
    color: #66BB6A;
    font-weight: 500;
    margin-bottom: 24px;
}

.cta-badge i {
    width: 16px;
    height: 16px;
}

.cta-title {
    font-size: 44px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 18px;
    color: #94a3b8;
    margin-bottom: 40px;
}

.cta-qrcode {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.qrcode-img {
    width: 200px;
    height: 200px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    object-fit: cover;
    background: #ffffff;
}

.qrcode-placeholder {
    width: 180px;
    height: 180px;
    background: #ffffff;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.qrcode-icon-large {
    width: 48px;
    height: 48px;
    color: #4CAF50;
}

.qrcode-text {
    font-size: 13px;
    color: #94a3b8;
    font-weight: 600;
}

.cta-hint {
    font-size: 15px;
    color: #64748b;
    margin-bottom: 32px;
}

.btn-cta-white {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #ffffff;
    color: #0f172a;
    padding: 16px 32px;
    border-radius: 14px;
    text-decoration: none;
    font-size: 17px;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.btn-cta-white i {
    width: 20px;
    height: 20px;
}

.btn-cta-white:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 35px rgba(0, 0, 0, 0.3);
}

/* ===== 二维码弹窗 ===== */
.qrcode-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    padding: 20px;
}

.qrcode-modal-overlay.show {
    display: flex;
    opacity: 1;
}

.qrcode-modal-content {
    position: relative;
    background: #ffffff;
    border-radius: 24px;
    padding: 40px 32px 32px;
    max-width: 360px;
    width: 100%;
    text-align: center;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.qrcode-modal-overlay.show .qrcode-modal-content {
    transform: scale(1);
}

.qrcode-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    background: #f1f5f9;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #64748b;
    transition: all 0.2s ease;
}

.qrcode-modal-close:hover {
    background: #e2e8f0;
    color: #1e293b;
    transform: rotate(90deg);
}

.qrcode-modal-close i {
    width: 18px;
    height: 18px;
}

.qrcode-modal-title {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 24px;
    padding: 8px 16px;
    background: rgba(76, 175, 80, 0.1);
    border-radius: 20px;
}

.qrcode-modal-title i {
    width: 18px;
    height: 18px;
    color: #4CAF50;
}

.qrcode-modal-image {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.qrcode-modal-image img {
    width: 240px;
    height: 240px;
    object-fit: contain;
    border-radius: 16px;
    background: #fafafa;
    border: 1px solid #f1f5f9;
}

.qrcode-modal-tip {
    font-size: 14px;
    color: #64748b;
    line-height: 1.6;
}

@media (max-width: 480px) {
    .qrcode-modal-content {
        padding: 32px 24px 24px;
    }

    .qrcode-modal-image img {
        width: 200px;
        height: 200px;
    }

    .qrcode-modal-title {
        font-size: 14px;
    }
}

/* ===== 一键置顶 ===== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #475569;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease, box-shadow 0.2s ease;
    transform: translateY(10px);
    z-index: 900;
}

.back-to-top.show {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.back-to-top:hover {
    box-shadow: 0 6px 24px rgba(76, 175, 80, 0.25);
    border-color: #4CAF50;
    color: #4CAF50;
}

.back-to-top i {
    width: 22px;
    height: 22px;
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 24px;
        right: 20px;
        width: 42px;
        height: 42px;
    }
}

/* ===== Footer ===== */
.footer {
    background: #ffffff;
    padding: 60px 0 30px;
    border-top: 1px solid #f1f5f9;
    position: relative;
    z-index: 1;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid #f1f5f9;
}

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

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

.footer-brand-desc {
    font-size: 14px;
    color: #94a3b8;
    line-height: 1.8;
}

.footer-links {
    display: flex;
    gap: 80px;
}

.footer-link-group h4 {
    font-size: 15px;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 16px;
}

.footer-link-group a {
    display: block;
    font-size: 14px;
    color: #64748b;
    text-decoration: none;
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

.footer-link-group a:hover {
    color: #4CAF50;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-copy {
    font-size: 14px;
    color: #94a3b8;
}

.footer-made {
    font-size: 14px;
    color: #94a3b8;
}

/* ===== 滚动动画 ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }

    .hero-content {
        order: 1;
    }

    .hero-image {
        order: 0;
        max-width: 320px;
        margin: 0 auto;
    }

    .hero-title {
        font-size: 42px;
    }

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

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

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

    .testimonials-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .floating-card {
        display: none;
    }
}

@media (max-width: 768px) {
    .navbar {
        position: fixed;
    }

    .nav-container {
        height: 60px;
        padding: 0 4px;
    }

    /* 移动端菜单 */
    .mobile-menu-btn {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 8px 0;
        border-bottom: 1px solid #f1f5f9;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 14px 24px;
        font-size: 16px;
        border-bottom: 1px solid #f9fafb;
    }

    .nav-links a::after {
        display: none;
    }

    .nav-cta {
        padding: 8px 16px;
        font-size: 13px;
    }

    .nav-cta .nav-cta-icon {
        display: block;
    }

    .nav-back span {
        display: none;
    }

    .nav-back {
        padding: 8px 10px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-subtitle br {
        display: none;
    }

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

    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 320px;
        justify-content: center;
        padding: 14px 24px;
        font-size: 15px;
    }

    .hero-features {
        justify-content: center;
        gap: 16px;
    }

    .hero-feature {
        font-size: 13px;
    }

    section {
        padding: 60px 0;
    }

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

    .section-title {
        font-size: 28px;
    }

    .section-desc {
        font-size: 15px;
    }

    /* 数据统计条 */
    .stats-bar {
        padding: 32px 0;
    }

    .stats-grid {
        flex-wrap: wrap;
        gap: 24px;
    }

    .stat-divider {
        display: none;
    }

    .stat-item {
        min-width: 45%;
    }

    .stat-number {
        font-size: 36px;
    }

    .stat-unit {
        font-size: 20px;
    }

    /* 对比 */
    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .comparison-card {
        padding: 28px 24px;
    }

    /* 步骤 */
    .steps-grid {
        flex-direction: column;
        gap: 32px;
    }

    .step-connector {
        transform: rotate(90deg);
        display: flex;
        justify-content: center;
    }

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

    /* 功能 */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-card {
        padding: 28px 24px;
    }

    /* 场景 */
    .scenarios-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .scenario-card {
        flex-direction: column;
        gap: 16px;
        padding: 24px;
    }

    .scenario-flow {
        gap: 6px;
    }

    .flow-step {
        font-size: 12px;
        padding: 3px 10px;
    }

    .flow-arrow {
        width: 12px;
        height: 12px;
    }

    /* 评价 */
    .testimonials-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    /* CTA */
    .cta {
        padding: 60px 0;
    }

    .cta-title {
        font-size: 28px;
    }

    .cta-desc {
        font-size: 15px;
    }

    .qrcode-img {
        width: 170px;
        height: 170px;
    }

    .qrcode-placeholder {
        width: 150px;
        height: 150px;
    }

    .btn-cta-white {
        padding: 14px 24px;
        font-size: 15px;
    }

    /* 手机 mockup */
    .phone-mockup {
        width: 240px;
        height: 480px;
        border-radius: 36px;
        padding: 10px;
        transform: none;
    }

    .phone-screen {
        border-radius: 28px;
    }

    .mockup-header {
        padding: 34px 12px 12px;
    }

    .mockup-date {
        font-size: 13px;
    }

    .mockup-stats {
        margin: 8px;
        padding: 10px;
        gap: 6px;
    }

    .stat-value {
        font-size: 12px;
    }

    .mockup-record {
        padding: 10px;
        gap: 8px;
    }

    .record-icon {
        width: 30px;
        height: 30px;
        border-radius: 8px;
    }

    .record-name {
        font-size: 12px;
    }

    .record-amount {
        font-size: 12px;
    }

    .floating-card {
        display: none;
    }

    /* Footer */
    .footer {
        padding: 40px 0 24px;
    }

    .footer-top {
        flex-direction: column;
        gap: 28px;
    }

    .footer-links {
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 6px;
        text-align: center;
    }

    /* FAQ */
    .faq-question {
        padding: 16px 20px;
        font-size: 15px;
    }

    .faq-answer p {
        padding: 0 20px 16px;
        font-size: 14px;
    }

    /* 装饰背景 */
    .blob {
        filter: blur(60px);
        opacity: 0.08;
    }

    .blob-1 {
        width: 300px;
        height: 300px;
        top: -100px;
        right: -50px;
    }

    .blob-2 {
        width: 250px;
        height: 250px;
        bottom: -80px;
        left: -50px;
    }

    .blob-3 {
        width: 200px;
        height: 200px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .nav-container {
        height: 56px;
    }

    .logo {
        font-size: 20px;
    }

    .logo-icon {
        width: 34px;
        height: 34px;
    }

    .hero {
        padding: 80px 0 40px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .hero-badge {
        font-size: 12px;
        padding: 6px 12px;
    }

    .hero-features {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }

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

    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
        padding: 14px 20px;
        font-size: 14px;
    }

    .section-header {
        margin-bottom: 32px;
    }

    .section-label {
        font-size: 11px;
        letter-spacing: 2px;
        padding: 4px 12px;
    }

    .section-title {
        font-size: 24px;
    }

    .section-desc {
        font-size: 14px;
    }

    /* 统计条 */
    .stats-bar {
        padding: 24px 0;
    }

    .stats-grid {
        gap: 16px;
    }

    .stat-item {
        min-width: 45%;
    }

    .stat-number {
        font-size: 32px;
    }

    .stat-unit {
        font-size: 18px;
    }

    .stat-label {
        font-size: 12px;
    }

    /* 对比卡 */
    .comparison-card {
        padding: 24px 20px;
    }

    .comparison-card h3 {
        font-size: 20px;
    }

    .comparison-list li {
        font-size: 14px;
        padding: 10px 0;
    }

    /* 步骤 */
    .step-card {
        padding: 24px 16px;
    }

    .step-number {
        font-size: 11px;
        padding: 3px 12px;
    }

    .step-icon-wrapper {
        width: 56px;
        height: 56px;
    }

    .step-title {
        font-size: 18px;
    }

    .step-desc {
        font-size: 13px;
    }

    /* 功能 */
    .feature-card {
        padding: 24px 20px;
    }

    .feature-title {
        font-size: 18px;
    }

    .feature-desc {
        font-size: 14px;
    }

    .tag {
        font-size: 11px;
        padding: 3px 10px;
    }

    /* 场景 */
    .scenario-card {
        padding: 20px;
        gap: 12px;
    }

    .scenario-title {
        font-size: 17px;
    }

    .scenario-desc {
        font-size: 13px;
    }

    .scenario-flow {
        gap: 4px;
    }

    .flow-step {
        font-size: 11px;
        padding: 2px 8px;
    }

    .flow-arrow {
        width: 10px;
        height: 10px;
    }

    /* 评价 */
    .testimonial-card {
        padding: 24px 20px;
    }

    .testimonial-text {
        font-size: 14px;
    }

    /* FAQ */
    .faq-question {
        padding: 14px 16px;
        font-size: 14px;
    }

    .faq-answer p {
        padding: 0 16px 14px;
        font-size: 13px;
    }

    /* CTA */
    .cta {
        padding: 48px 0;
    }

    .cta-title {
        font-size: 24px;
    }

    .cta-desc {
        font-size: 14px;
    }

    .qrcode-img {
        width: 150px;
        height: 150px;
    }

    .qrcode-placeholder {
        width: 130px;
        height: 130px;
    }

    .cta-hint {
        font-size: 13px;
    }

    .btn-cta-white {
        width: 100%;
        justify-content: center;
        padding: 14px 20px;
        font-size: 14px;
    }

    /* 手机 mockup */
    .phone-mockup {
        width: 220px;
        height: 440px;
        border-radius: 32px;
        padding: 8px;
    }

    .phone-screen {
        border-radius: 26px;
    }

    .mockup-header {
        padding: 30px 10px 10px;
    }

    .mockup-date {
        font-size: 12px;
    }

    .mockup-stats {
        margin: 6px;
        padding: 8px;
        gap: 4px;
    }

    .stat-label {
        font-size: 10px;
    }

    .stat-value {
        font-size: 11px;
    }

    .mockup-record {
        padding: 8px;
        gap: 6px;
    }

    .record-icon {
        width: 28px;
        height: 28px;
        border-radius: 6px;
    }

    .record-icon i {
        width: 14px;
        height: 14px;
    }

    .record-name {
        font-size: 11px;
    }

    .record-category {
        font-size: 10px;
    }

    .record-amount {
        font-size: 11px;
    }

    /* Footer */
    .footer-links {
        flex-direction: column;
        gap: 20px;
    }

    .footer-brand-desc {
        font-size: 13px;
    }

    .footer-copy,
    .footer-made {
        font-size: 12px;
    }

    /* 装饰 */
    .blob {
        filter: blur(40px);
        opacity: 0.06;
    }

    .blob-1 {
        width: 200px;
        height: 200px;
    }

    .blob-2 {
        width: 180px;
        height: 180px;
    }

    .blob-3 {
        display: none;
    }
}