/* 全局样式 */
:root {
    --primary-color: #8e6fd1;
    --primary-light: #a183e0;
    --primary-dark: #7456b8;
    --secondary-color: #ff9fb3;
    --secondary-light: #ffcad4;
    --secondary-dark: #ff7c96;
    --accent-color: #ffb5c2;
    --text-color: #4a4a4a;
    --text-light: #6e6e6e;
    --text-dark: #2e2e2e;
    --text-white: #ffffff;
    --bg-warm: #fff9f9;
    --bg-light: #f0f4ff;
    --bg-gradient: linear-gradient(135deg, var(--bg-warm) 0%, var(--bg-light) 100%);
    --shadow-soft: 0 10px 30px rgba(142, 111, 209, 0.12);
    --shadow-strong: 0 15px 35px rgba(142, 111, 209, 0.2);
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 20px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', 'Noto Sans', sans-serif;
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
    background-color: var(--bg-warm);
}

.container {
    width: 92%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    position: relative;
    z-index: 2;
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 15px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-dark);
}

p {
    margin-bottom: 15px;
    font-size: 1.05rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    display: inline-block;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* 导航栏 */
.navbar {
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-img {
    width: 40px;
    height: 40px;
    margin-right: 10px;
    border-radius: 50%;
    box-shadow: var(--shadow-soft);
}

.nav-container {
    display: flex;
    align-items: center;
}

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

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

.nav-links a:not(.btn-primary)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-links a:not(.btn-primary):hover::after {
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--text-white) !important;
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: 500;
    display: inline-block;
    border: none;
    transition: var(--transition);
    box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-strong);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: 500;
    display: inline-block;
    border: 2px solid var(--primary-color);
    transition: var(--transition);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-soft);
}

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px 0;
    border-radius: 3px;
    transition: var(--transition);
}

/* 英雄部分 */
.hero {
    padding: 150px 0 100px;
    background: var(--bg-gradient);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.hero-content {
    flex: 1;
    min-width: 300px;
    padding-right: 50px;
}

.hero-content h1 {
    font-size: 3.5rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
}

.hero-btns {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 1;
    min-width: 300px;
    position: relative;
}

.hero-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-strong);
    transform: perspective(1000px) rotateY(-8deg);
    transition: var(--transition);
}

.hero-image img:hover {
    transform: perspective(1000px) rotateY(0);
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-light) 100%);
    opacity: 0.7;
    animation: float 6s ease-in-out infinite;
}

.shape1 {
    width: 70px;
    height: 70px;
    top: -30px;
    right: 10%;
    animation-delay: 0s;
}

.shape2 {
    width: 40px;
    height: 40px;
    bottom: 20px;
    left: 10%;
    animation-delay: 1s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* 动画效果 */
.animate-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* 分割线 - 波浪效果 */
.shape-divider {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    z-index: 1;
    pointer-events: none;
}

.shape-divider.top {
    top: 0;
    bottom: auto;
    transform: rotate(180deg);
}

.shape-divider svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 80px;
}

.shape-divider .shape-fill {
    fill: #FFFFFF;
}

/* 特点部分 */
.features {
    padding: 100px 0;
    background-color: var(--bg-warm);
    position: relative;
    margin-top: -2px; /* 消除分割线间隙 */
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(142, 111, 209, 0.05) 0%, rgba(255, 159, 179, 0.05) 100%);
    z-index: -1;
    transition: var(--transition);
    opacity: 0;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    box-shadow: var(--shadow-soft);
}

.feature-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* 应用介绍部分 */
.app-intro {
    padding: 120px 0;
    background-color: var(--bg-light);
    position: relative;
    margin-top: -2px; /* 消除分割线间隙 */
}

.app-intro .container {
    display: flex;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
}

.app-intro-content {
    flex: 1;
    min-width: 300px;
}

.app-intro-content h2 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    margin-bottom: 20px;
}

.app-intro-content p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 30px;
}

.app-benefits {
    list-style: none;
}

.app-benefits li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.app-benefits i {
    color: var(--secondary-color);
    margin-right: 10px;
    font-size: 1.2rem;
    transform: translateY(4px);
}

.app-intro-image {
    flex: 1;
    min-width: 300px;
    position: relative;
}

.app-intro-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-strong);
}

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

.floating-hearts i {
    position: absolute;
    color: var(--secondary-color);
    opacity: 0.7;
    animation: floatHeart 6s ease-in-out infinite;
}

.heart1 {
    top: 10%;
    left: 10%;
    font-size: 1.5rem;
    animation-delay: 0s;
}

.heart2 {
    top: 40%;
    right: 10%;
    font-size: 2rem;
    animation-delay: 1s;
}

.heart3 {
    bottom: 20%;
    left: 20%;
    font-size: 1.2rem;
    animation-delay: 2s;
}

@keyframes floatHeart {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-15px) scale(1.1);
    }
}

/* 截图部分 */
.screenshots {
    padding: 120px 0;
    background-color: var(--bg-warm);
    position: relative;
    margin-top: -2px; /* 消除分割线间隙 */
}

.screenshot-carousel {
    display: flex;
    overflow-x: auto;
    gap: 30px;
    padding: 20px 0;
    -ms-overflow-style: none;
    scrollbar-width: none;
    cursor: grab;
}

.screenshot-carousel::-webkit-scrollbar {
    display: none;
}

.screenshot {
    flex: 0 0 300px;
    position: relative;
    transition: var(--transition);
}

.screenshot-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.screenshot:hover .screenshot-wrapper {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.screenshot img {
    width: 100%;
    height: 600px;
    object-fit: cover;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.screenshot:hover img {
    transform: scale(1.05);
}

.screenshot-caption {
    background-color: rgba(255, 255, 255, 0.9);
    padding: 15px;
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    border-radius: var(--border-radius-sm);
    text-align: center;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.screenshot-caption h4 {
    color: var(--primary-color);
    margin-bottom: 5px;
}

.screenshot-caption p {
    margin-bottom: 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

.carousel-nav {
    display: flex;
    justify-content: center;
    margin-top: 30px;
    gap: 10px;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--primary-light);
    opacity: 0.3;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.carousel-dot.active {
    opacity: 1;
    transform: scale(1.3);
}

/* 用户评价部分 */
.testimonials {
    padding: 120px 0;
    background-color: var(--bg-light);
    position: relative;
    margin-top: -2px; /* 消除分割线间隙 */
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
    position: relative;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.quote-icon {
    position: absolute;
    top: 20px;
    left: 20px;
    color: var(--primary-light);
    opacity: 0.2;
    font-size: 2rem;
}

.testimonial-content {
    margin-bottom: 20px;
    padding-top: 30px;
}

.testimonial-content p {
    color: var(--text-color);
    font-style: italic;
}

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

.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
    box-shadow: var(--shadow-soft);
}

.testimonial-author h4 {
    margin-bottom: 5px;
    color: var(--primary-color);
}

.testimonial-author p {
    color: var(--text-light);
    margin-bottom: 0;
    font-size: 0.9rem;
}

/* 下载部分 */
.download {
    padding: 150px 0 120px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-top: -2px; /* 消除分割线间隙 */
}

.download-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: white;
}

.download-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.download-btn {
    display: flex;
    align-items: center;
    background-color: white;
    color: var(--primary-color);
    padding: 15px 25px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    box-shadow: var(--shadow-soft);
}

.download-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-strong);
    color: var(--primary-dark);
}

.download-btn i {
    font-size: 2rem;
    margin-right: 15px;
}

.download-btn div {
    text-align: left;
}

.download-btn div span:first-child {
    font-size: 0.8rem;
    display: block;
    opacity: 0.8;
}

.download-btn div span:last-child {
    font-size: 1.2rem;
    font-weight: 700;
}

.app-qrcode {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.qrcode-item {
    background-color: white;
    padding: 15px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.qrcode-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-strong);
}

.qrcode-item img {
    border-radius: var(--border-radius-sm);
    margin-bottom: 10px;
    width: 150px;
    height: 150px;
    object-fit: cover;
}

.qrcode-item p {
    color: var(--primary-color);
    margin-bottom: 0;
    font-size: 0.9rem;
    font-weight: 500;
}

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

.floating-circle {
    position: absolute;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
}

.circle1 {
    width: 200px;
    height: 200px;
    top: -50px;
    left: -50px;
    animation: pulse 8s infinite;
}

.circle2 {
    width: 100px;
    height: 100px;
    top: 30%;
    right: 10%;
    animation: pulse 6s infinite;
    animation-delay: 1s;
}

.circle3 {
    width: 150px;
    height: 150px;
    bottom: -30px;
    right: 20%;
    animation: pulse 10s infinite;
    animation-delay: 2s;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.1;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.2;
    }
}

/* 页脚 */
.footer {
    padding: 100px 0 20px;
    background-color: #343a40;
    color: white;
    position: relative;
    margin-top: -2px; /* 消除分割线间隙 */
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.footer h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.5rem;
    position: relative;
    display: inline-block;
}

.footer h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 40px;
    height: 3px;
    background-color: var(--secondary-color);
    border-radius: 3px;
}

.footer-about p {
    margin-bottom: 20px;
    opacity: 0.8;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
    color: white;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
    display: inline-block;
}

.footer-links a:hover {
    color: white;
    transform: translateX(5px);
}

.footer-contact p {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    opacity: 0.8;
}

.footer-contact i {
    margin-right: 10px;
    color: var(--secondary-color);
}

.language-selector {
    margin-top: 20px;
}

.language-selector p {
    margin-bottom: 10px;
}

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

.language-options button {
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.language-options button.active {
    background-color: var(--primary-color);
}

.language-options button:hover:not(.active) {
    background-color: rgba(255, 255, 255, 0.2);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    opacity: 0.6;
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* 响应式设计 */
@media screen and (max-width: 992px) {
    h1 {
        font-size: 2.5rem !important;
    }
    
    h2 {
        font-size: 2rem !important;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 50px;
        text-align: center;
    }
    
    .hero-btns {
        justify-content: center;
    }
    
    .app-intro .container {
        flex-direction: column;
    }
    
    .app-intro-content {
        order: 2;
    }
    
    .app-intro-image {
        order: 1;
        margin-bottom: 50px;
    }
}

@media screen and (max-width: 768px) {
    .nav-container {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--bg-warm);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
        box-shadow: var(--shadow-soft);
    }
    
    .nav-container.active {
        left: 0;
    }
    
    .nav-links {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    .language-switcher {
        margin: 20px 0 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
}

@media screen and (max-width: 576px) {
    .feature-grid, .testimonial-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .download-btn {
        width: 100%;
        max-width: 280px;
    }
}