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

:root {
    --primary-blue: #4A90E2;
    --primary-purple: #9B59B6;
    --light-blue: #E3F2FD;
    --dark-blue: #1A3A5F;
    --white: #FFFFFF;
    --text-dark: #333333;
    --text-light: #666666;
    --gradient-start: #E3F2FD;
    --gradient-end: #F3E5F5;
}

body {
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
}

/* Hero Section */
.hero {
    min-height: 750px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background-image: url('../assets/images/hero-bg.png');
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
}

.hero .container {
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    display: flex;
    justify-content: space-between;
    gap: 60px;
}

.hero-content-img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
}

.hero-left {
    flex: 0 0 35%;
    max-width: 35%;
    padding-top: 200px;
    padding-left: 50px;
    z-index: 2;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 30px;
}

.logo {
    width: auto;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-img {
    height: 100%;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: 26px;
    font-weight: bold;
    color: var(--text-dark);
}

.hero-title {
    font-size: 52px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.3;
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 22px;
    color: var(--text-light);
    line-height: 1.6;
    font-weight: 400;
}

.hero-right {
    flex: 0 0 60%;
    max-width: 60%;
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.robot-illustration {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 350px;
    height: 450px;
    z-index: 3;
    animation: robotFloat 4s ease-in-out infinite;
}

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

.robot-body {
    width: 220px;
    height: 280px;
    background: linear-gradient(135deg, #5BA3F5 0%, #9B59B6 100%);
    border-radius: 35px;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 15px 50px rgba(74, 144, 226, 0.5);
    border: 3px solid rgba(255, 255, 255, 0.3);
}

.robot-head {
    width: 180px;
    height: 180px;
    background: linear-gradient(135deg, #5BA3F5 0%, #9B59B6 100%);
    border-radius: 50%;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 10px 40px rgba(74, 144, 226, 0.5);
    border: 3px solid rgba(255, 255, 255, 0.3);
}

.robot-eye {
    width: 30px;
    height: 30px;
    background: #00FF88;
    border-radius: 50%;
    position: absolute;
    top: 50px;
    box-shadow: 0 0 20px #00FF88;
    animation: blink 3s infinite;
}

.left-eye {
    left: 40px;
}

.right-eye {
    right: 40px;
}

@keyframes blink {
    0%, 90%, 100% { transform: scaleY(1); }
    95% { transform: scaleY(0.1); }
}

.floating-card {
    position: absolute;
    background: var(--white);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    animation: float 3s ease-in-out infinite;
    z-index: 2;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.card-1 {
    top: 5%;
    right: 5%;
    width: 300px;
    animation-delay: 0s;
}

.card-2 {
    top: 45%;
    right: -8%;
    width: 280px;
    animation-delay: 1s;
}

.card-3 {
    bottom: 5%;
    right: 10%;
    width: 260px;
    animation-delay: 2s;
}

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

.card-header {
    font-size: 16px;
    font-weight: bold;
    color: var(--text-dark);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-logo {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: bold;
    font-size: 20px;
}

.card-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: flex-end;
    background: var(--primary-purple);
    color: var(--white);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 12px;
}

.check-icon {
    width: 18px;
    height: 18px;
    background: var(--white);
    color: var(--primary-purple);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.card-content {
    font-size: 14px;
    color: var(--text-light);
}

.ai-greeting {
    background: var(--light-blue);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 12px;
    color: var(--text-dark);
    font-size: 14px;
}

.user-question {
    background: var(--primary-blue);
    color: var(--white);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.question-icon {
    font-size: 18px;
}

.arrow-right {
    margin-left: auto;
    font-size: 16px;
}

.placeholder-item {
    background: var(--light-blue);
    padding: 8px 12px;
    border-radius: 6px;
    margin-bottom: 6px;
    color: var(--text-light);
    font-size: 14px;
}

.amount-large {
    font-size: 36px;
    font-weight: bold;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.amount-label {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
}

.progress-label {
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: var(--primary-blue);
    font-weight: 500;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.user-avatar {
    width: 32px;
    height: 32px;
    font-size: 20px;
}

.user-name {
    font-size: 14px;
    color: var(--text-dark);
    font-weight: 500;
}

.comparison-box {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.original-amount {
    font-size: 16px;
    color: var(--text-light);
    text-decoration: line-through;
}

.arrow-orange {
    font-size: 20px;
    color: #FF6B35;
}

.optimized-amount {
    background: var(--white);
    border: 2px solid #FF6B35;
    border-radius: 8px;
    padding: 12px;
    text-align: center;
}

.optimized-label {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 4px;
}

.optimized-value {
    font-size: 24px;
    font-weight: bold;
    color: #FF6B35;
}

.repayment-label {
    font-size: 14px;
    color: var(--text-light);
}

.arrow-line {
    position: absolute;
    z-index: 1;
    pointer-events: none;
}

.arrow-1 {
    top: 10%;
    left: 15%;
    width: 300px;
    height: 200px;
}

.arrow-2 {
    bottom: 15%;
    right: 20%;
    width: 200px;
    height: 150px;
}

.ai-message {
    background: var(--light-blue);
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 8px;
}

.user-query {
    color: var(--primary-blue);
    font-weight: 500;
}

.amount {
    font-size: 32px;
    font-weight: bold;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.label {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
}

.progress-ring {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 0 auto;
}

.progress-svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.progress-bg {
    fill: none;
    stroke: #E0E0E0;
    stroke-width: 8;
}

.progress-bar {
    fill: none;
    stroke: var(--primary-blue);
    stroke-width: 8;
    stroke-dasharray: 283;
    stroke-dashoffset: 85;
    transition: stroke-dashoffset 0.5s;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 14px;
    font-weight: bold;
    color: var(--primary-blue);
}

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

.crossed {
    text-decoration: line-through;
    color: var(--text-light);
}

.arrow {
    font-size: 20px;
    color: var(--primary-blue);
}

.highlight {
    color: var(--primary-blue);
    font-weight: bold;
}

/* Features Section */
.features {
    background: var(--white);
}

.section-title {
    font-size: 52px;
    font-weight: 700;
    text-align: center;
    margin: 52px 0;
    color: var(--text-dark);
    letter-spacing: -1px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    align-items: start;
}

.feature-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

.feature-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.feature-content {
    padding: 40px;
}

.feature-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.feature-desc {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.6;
}

.feature-screenshot {
    margin-top: 30px;
    border-radius: 12px;
    overflow: hidden;
    width: 100%;
}

.screenshot-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.screenshot-form {
    background: #F8F9FA;
    border-radius: 12px;
    padding: 24px;
}

.form-field {
    margin-bottom: 16px;
}

.form-field label {
    display: block;
    font-size: 14px;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-field input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #E0E0E0;
    border-radius: 8px;
    font-size: 14px;
    background: var(--white);
}

.upload-section {
    margin-top: 24px;
    text-align: center;
    padding: 20px;
    background: var(--white);
    border-radius: 8px;
    border: 2px dashed #E0E0E0;
}

.upload-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.upload-text {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 12px;
}

.upload-btn {
    padding: 10px 24px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.3s;
}

.upload-btn:hover {
    background: #357ABD;
}

.screenshot-progress {
    position: relative;
    background: #F8F9FA;
    border-radius: 12px;
    padding: 24px;
}

.progress-card {
    background: var(--white);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
}

.progress-header {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.progress-amount {
    font-size: 36px;
    font-weight: bold;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.progress-label {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 20px;
}

.progress-ring-small {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto;
}

.progress-svg-small {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.progress-text-small {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
    font-weight: bold;
    color: var(--primary-blue);
}

.bills-list {
    background: var(--white);
    border-radius: 12px;
    padding: 20px;
}

.bills-header {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.bill-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #F0F0F0;
}

.bill-item:last-child {
    border-bottom: none;
}

.bill-name {
    font-size: 14px;
    color: var(--text-dark);
}

.bill-amount {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
}

.tooltip-bubble {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: var(--primary-blue);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

.screenshot-chat {
    background: #F8F9FA;
    border-radius: 12px;
    padding: 24px;
    height: 400px;
    display: flex;
    flex-direction: column;
}

.chat-header {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
}

.message {
    display: flex;
    margin-bottom: 16px;
    align-items: flex-start;
    gap: 12px;
}

.message-avatar {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.message-content {
    background: var(--white);
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
    color: var(--text-dark);
    max-width: 70%;
}

.user-msg {
    flex-direction: row-reverse;
}

.user-msg .message-content {
    background: var(--primary-blue);
    color: var(--white);
}

.prompt-msg .message-content {
    background: #FFF3CD;
    color: #856404;
    font-style: italic;
}

.typing .message-content {
    background: var(--light-blue);
    color: var(--primary-blue);
    position: relative;
}

.typing .message-content::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* Detailed Features Section */
.detailed-features {
    padding: 100px 0;
    background: var(--white);
}

.detailed-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.detailed-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 30px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.detailed-feature-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.detailed-feature-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.detailed-feature-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-dark);
    letter-spacing: -0.2px;
}

.detailed-feature-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* Footer Section */
.footer {
    background: #0c234d;
    color: #FFFFFF;
    padding: 40px 0 30px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    /* margin-bottom: 25px; */
    padding: 0 50px;
}

.footer-left {
    flex: 1;
}

.footer-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #FFFFFF;
}

.contact-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    color: #FFFFFF;
}

.wechat-icon {
    width: 20px;
    height: 20px;
    object-fit: contain;
    flex-shrink: 0;
}

.footer-right {
    display: flex;
    justify-content: flex-end;
}

.qr-code {
    text-align: center;
}

.qr-image {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 8px;
    display: block;
}

.qr-text {
    font-size: 12px;
    color: #FFFFFF;
}

.footer-divider {
    width: 100%;
    height: 1px;
    background: rgba(255, 255, 255, 0.15);
    margin: 20px 0;
}

.footer-bottom {
    text-align: center;
    color: #FFFFFF;
}

.copyright {
    font-size: 12px;
    margin-bottom: 10px;
    color: #FFFFFF;
}

.company-info {
    font-size: 12px;
    line-height: 1.8;
    display: flex;
    justify-content: center;
    color: rgba(255, 255, 255, 0.9);
}
.company-info>div{
    padding: 0 5px;
}

.company-name {
    font-weight: 500;
    margin-bottom: 4px;
    color: rgba(255, 255, 255, 0.9);
}

.company-address,
.company-phone {
    color: rgba(255, 255, 255, 0.8);
}

/* Responsive Design */
@media (max-width: 1440px) {
    .container {
        padding: 0 30px;
    }
}

@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .detailed-features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-content {
        flex-direction: column;
    }
    
    .hero-right {
        height: 500px;
    }
}

@media (max-width: 768px) {
    .detailed-features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-right {
        justify-content: center;
    }
}