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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Arial', 'Helvetica', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* Fixed Navigation */
.fixed-nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1000;
    padding: 30px 50px;
    background: transparent;
    transition: background 0.3s ease;
}

.fixed-nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.fixed-nav a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: transform 0.3s ease, color 0.3s ease;
    display: inline-block;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.fixed-nav.scrolled a {
    color: #000;
    text-shadow: none;
}

.fixed-nav a:hover {
    transform: scale(1.2);
}

/* Hero Section */
.hero-section {
    position: relative;
    width: 100%;
    height: 100vh;
    background-image: url('hero-image.jpg');
    background-size: cover;
    background-position: center 50%; /* 调整背景位置 */
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('hero-image.jpg');
    background-size: cover;
    background-position: center 50%; /* 调整背景位置 */
    background-repeat: no-repeat;
    filter: grayscale(100%) contrast(120%) brightness(0.85);
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    width: 100%;
    height: 100%;
    padding: 50px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto 1fr auto;
    grid-template-areas: 
        "top-left top-right"
        "sidebar ."
        ". name";
}

.hero-top-left {
    display: none;
}

.hero-sidebar {
    grid-area: sidebar;
    display: flex;
    flex-direction: column;
    gap: 30px;
    align-self: center;
}

.stat-item {
    color: #fff;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.stat-number {
    font-family: 'Futura', 'Futura PT', 'Futura Std', 'Futura-Thin', 'Avenir Next', 'Avenir', 'Helvetica Neue', sans-serif;
    font-size: 48px;
    font-weight: 100;
    line-height: 1.2;
    margin-bottom: 5px;
    font-style: normal;
}

.stat-text {
    font-size: 14px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-name {
    grid-area: name;
    color: #fff;
    font-family: 'Futura', 'Futura-Bold', 'Futura PT', 'Futura Std', 'Avenir Next', 'Avenir', 'Helvetica Neue', sans-serif;
    font-size: 110px;
    font-weight: bold;
    letter-spacing: 5px;
    text-transform: uppercase;
    justify-self: end;
    align-self: end;
    text-shadow: none;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    line-height: 0.9;
    margin-bottom: 50px;
    margin-right: 0;
    perspective: 1000px;
}

.hero-name-line {
    display: block;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.6s ease;
    transform-style: preserve-3d;
    transform-origin: left center;
    backface-visibility: hidden;
}

/* 往下滚动 - 由左往右翻页（翻出去） */
.hero-name.flip-out .hero-name-line {
    transform: rotateY(-120deg);
    opacity: 0;
}

/* 正常状态 - 显示 */
.hero-name.flip-in .hero-name-line {
    transform: rotateY(0deg);
    opacity: 1;
}

/* 第二行延迟动画 */
.hero-name .hero-name-line:nth-child(2) {
    transition-delay: 0.1s;
}


/* Section Styles */
section {
    min-height: 100vh;
    padding: 100px 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.section-container {
    max-width: 1200px;
    width: 100%;
    position: relative; /* 为指示器提供定位上下文 */
}

.section-title {
    font-size: 64px;
    font-weight: bold;
    margin-bottom: 60px;
    text-transform: uppercase;
    letter-spacing: 3px;
}

/* Portfolio Section */
.portfolio-section {
    background: #f5f5f5;
}

.portfolio-container {
    position: relative;
    width: 100%;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 20px;
    width: 100%;
}

.portfolio-item {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    cursor: pointer;
    background: #000;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.9);
    color: #fff;
    padding: 20px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    z-index: 10;
}

.portfolio-item:hover .portfolio-item-overlay {
    transform: translateY(0);
}

.portfolio-item-title {
    font-size: 18px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.portfolio-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    font-size: 32px;
    cursor: pointer;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease, transform 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.portfolio-arrow:hover {
    background: #fff;
    transform: translateY(-50%) scale(1.1);
}

.portfolio-arrow-left {
    left: -30px;
}

.portfolio-arrow-right {
    right: -30px;
}

/* About Section */
.about-section {
    background: #fff;
}

.about-content {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 80px;
    max-width: 1200px;
    margin: 0 auto;
    align-items: start;
}

.about-left {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.about-avatar {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    overflow: hidden;
    background: #e0e0e0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    border: none;
}

.about-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    position: relative;
    z-index: 1;
}

.about-avatar::before {
    content: '洪';
    font-size: 120px;
    color: #999;
    font-weight: bold;
    position: absolute;
    z-index: 0;
}

.about-right {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.about-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: stretch;
}

.about-info-left,
.about-info-right {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.about-info-left {
    justify-content: flex-start;
}

.about-info-left .info-item {
    margin-bottom: 0;
}

.about-info-left .info-item:last-child {
    margin-top: 0;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.info-item-full {
    grid-column: 1 / -1;
    margin-top: 0;
}

.info-label {
    font-size: 14px;
    font-weight: bold;
    color: #000;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.info-value {
    font-size: 16px;
    line-height: 1.8;
    color: #333;
    white-space: pre-line;
}

/* Services Section */
.services-section {
    background: #f5f5f5;
    overflow: visible;
}

.services-content {
    position: relative;
    padding: 0 70px 60px 0;
    min-height: 400px;
    display: flex;
    justify-content: flex-start;
    overflow: visible;
    max-width: 1200px;
    margin: 0 auto;
}

.arrow-workflow {
    display: flex;
    align-items: center;
    position: relative;
    transform: translateX(-90%);
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    width: auto;
    gap: 0;
}

.arrow-workflow.slide-in {
    transform: translateX(0);
}

.arrow-item {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 370px;
    flex-shrink: 0;
    margin-left: -90px;
    z-index: 1;
}

.arrow-item:first-child {
    margin-left: 0;
    z-index: 4;
}

.arrow-item:nth-child(2) {
    z-index: 3;
}

.arrow-item:nth-child(3) {
    z-index: 2;
}

.arrow-item:last-child {
    z-index: 1;
}

.arrow-title {
    font-size: 16px;
    font-weight: bold;
    color: #000;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
    text-align: center;
    font-family: 'Arial', 'Helvetica Neue', sans-serif;
}

.arrow-block {
    position: relative;
    width: 370px;
    height: 200px;
    background: #1a4a7a;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    clip-path: polygon(0 0, calc(100% - 70px) 0, 100% 50%, calc(100% - 70px) 100%, 0 100%);
    padding: 20px 75px 20px 20px;
    box-sizing: border-box;
    overflow: hidden;
}

.arrow-item-1 .arrow-block {
    background: #5B402A;
    overflow: hidden;
    align-items: center; /* 文字垂直居中 */
    justify-content: center; /* 文字水平居中 */
}

.arrow-item-2 .arrow-block {
    background: #88603F;
    overflow: hidden;
}

.arrow-item-3 .arrow-block {
    background: #B78862;
    overflow: hidden;
}

.arrow-item-4 .arrow-block {
    background: #C7A285;
    clip-path: polygon(0 0, calc(100% - 70px) 0, 100% 50%, calc(100% - 70px) 100%, 0 100%);
    padding-right: 75px;
    padding-left: 20px;
    width: 370px;
    overflow: hidden;
}

.arrow-text {
    color: #fff;
    font-size: 16px;
    line-height: 1.2;
    text-align: right;
    white-space: pre-line;
    font-family: 'Arial', 'Helvetica Neue', sans-serif;
    width: 100%;
}

.arrow-text div {
    margin: 0;
    line-height: 1.2;
}

/* Arrow Indicators - Hidden on desktop */
.arrow-indicators {
    display: none;
}

/* Contact Section */
.contact-section {
    background: #fff;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: stretch;
}

.contact-form {
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-form input,
.contact-form textarea {
    padding: 15px;
    border: 1px solid #ddd;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #000;
}

.contact-form button {
    padding: 15px 40px;
    background: #000;
    color: #fff;
    border: none;
    font-size: 16px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: background 0.3s ease;
    align-self: flex-start;
}

.contact-form button:hover {
    background: #333;
}

/* Scratch Card */
.scratch-card-container {
    display: flex;
    justify-content: center;
    align-items: flex-start; /* 顶部对齐，从下往上缩减 */
    height: 100%;
}

.scratch-card {
    position: relative;
    width: 300px;
    height: 300px; /* 正方形，宽度和高度相等 */
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    background: #fff;
    display: flex;
    flex-direction: column;
}

.scratch-card-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #fff;
    padding: 20px;
    box-sizing: border-box;
}

.qrcode-image {
    width: 200px;
    height: 200px;
    object-fit: contain;
    margin-bottom: 15px;
}

.line-id {
    font-size: 16px;
    font-weight: bold;
    color: #333;
    text-align: center;
}

.scratch-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: crosshair;
    z-index: 2;
    touch-action: none;
}

.scratch-hint {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    pointer-events: none;
    opacity: 0.9;
}

.scratch-hint-image {
    position: absolute;
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 80%;
    max-height: 55%;
    width: auto;
    height: auto;
    z-index: 2;
    pointer-events: none;
    object-fit: contain;
}

.scratch-text {
    position: absolute;
    top: calc(45% + 30%);
    left: 50%;
    transform: translateX(-50%);
    font-size: 14px;
    color: #666;
    font-weight: 500;
    text-align: center;
    z-index: 2;
    pointer-events: none;
    white-space: nowrap;
    margin-top: 10px;
    margin-top: 5px;
    z-index: 2;
    position: relative;
}

.scratch-card.scratched .scratch-hint {
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* Portfolio Modal */
.portfolio-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

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

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

.modal-close {
    position: absolute;
    top: 30px;
    right: 50px;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 48px;
    cursor: pointer;
    z-index: 2001;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.modal-close:hover {
    transform: scale(1.2);
}

.modal-content {
    position: relative;
    max-width: 95%;
    max-height: 90vh;
    display: grid;
    grid-template-columns: auto 1fr auto;
    grid-template-rows: 1fr auto;
    gap: 30px;
    align-items: start;
    overflow-y: auto;
}

.modal-thumbnails {
    grid-column: 1;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
    max-height: 70vh;
    padding-right: 20px;
}

.modal-thumbnail {
    flex-shrink: 0;
    width: 100px;
    height: 70px;
    cursor: pointer;
    border: 2px solid transparent;
    border-radius: 4px;
    overflow: hidden;
    transition: border-color 0.3s ease, opacity 0.3s ease;
    opacity: 0.6;
}

.modal-thumbnail:hover {
    opacity: 1;
}

.modal-thumbnail.active {
    border-color: #fff;
    opacity: 1;
}

.modal-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-center {
    grid-column: 2;
    grid-row: 1 / 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    justify-self: center;
}

.modal-main-image {
    width: 100%;
    max-width: 800px;
    background: #1a1a1a;
    border-radius: 4px;
    overflow: hidden;
}

.modal-main-image img {
    width: 100%;
    height: auto;
    max-height: 70vh;
    object-fit: contain;
    display: block;
}

.modal-title {
    font-size: 28px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    line-height: 1.3;
    color: #fff;
    text-align: center;
}

.modal-right {
    grid-column: 3;
    grid-row: 1;
    color: #fff;
    display: flex;
    flex-direction: column;
    max-width: 350px;
    padding-left: 20px;
}

.modal-description {
    font-size: 16px;
    line-height: 1.8;
    color: #e0e0e0;
    white-space: pre-line;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .scratch-card {
        width: 280px;
        height: 280px;
    }
    
    .qrcode-image {
        width: 180px;
        height: 180px;
    }
    
    .services-content {
        padding: 0 20px 40px 20px;
        min-height: 350px;
        overflow-x: auto;
        display: flex;
        justify-content: flex-start;
    }
    
    .arrow-workflow {
        transform: translateX(-95%);
        min-width: 1200px;
    }
    
    .arrow-item {
        min-width: 340px;
        margin-left: -80px;
    }
    
    .arrow-item:first-child {
        margin-left: 0;
    }
    
    .arrow-block {
        width: 340px;
        height: 180px;
        padding: 15px 60px 15px 15px;
        clip-path: polygon(0 0, calc(100% - 60px) 0, 100% 50%, calc(100% - 60px) 100%, 0 100%);
        justify-content: flex-end;
    }
    
    .arrow-item-4 .arrow-block {
        clip-path: polygon(0 0, calc(100% - 60px) 0, 100% 50%, calc(100% - 60px) 100%, 0 100%);
        padding-right: 65px;
        padding-left: 15px;
        width: 340px;
    }
    
    .arrow-title {
        font-size: 14px;
    }
    
    .arrow-text {
        font-size: 14px;
        line-height: 1.2;
        text-align: right;
    }
    
    .arrow-text div {
        margin: 0;
        line-height: 1.2;
    }
    
    .arrow-workflow.slide-in {
        transform: translateX(-10%);
    }
    
    .hero-name {
        font-family: 'Futura', 'Futura-Bold', 'Futura PT', 'Futura Std', 'Avenir Next', 'Avenir', 'Helvetica Neue', sans-serif;
        font-size: 72px;
        text-shadow: none;
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        line-height: 0.9;
        margin-bottom: 40px;
        perspective: 800px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
        justify-items: center;
    }
    
    .about-avatar {
        width: 250px;
        height: 250px;
    }
    
    .about-info {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    
    .modal-content {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        gap: 20px;
    }
    
    .modal-thumbnails {
        grid-column: 1;
        grid-row: 1;
        flex-direction: row;
        overflow-x: auto;
        overflow-y: visible;
        max-height: none;
        padding-right: 0;
    }
    
    .modal-center {
        grid-column: 1;
        grid-row: 2;
    }
    
    .modal-right {
        grid-column: 1;
        grid-row: 3;
        max-width: 100%;
        padding-left: 0;
    }
}

@media (max-width: 768px) {
    .fixed-nav {
        padding: 20px 20px;
    }
    
    .fixed-nav ul {
        gap: 20px;
    }
    
    .fixed-nav a {
        font-size: 12px;
    }
    
    .hero-content {
        padding: 30px 20px;
    }
    
    .hero-name {
        font-family: 'Futura', 'Futura-Bold', 'Futura PT', 'Futura Std', 'Avenir Next', 'Avenir', 'Helvetica Neue', sans-serif;
        font-size: 52px;
        text-shadow: none;
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        line-height: 0.9;
        margin-bottom: 30px;
        perspective: 600px;
    }
    
    .stat-number {
        font-family: 'Futura', 'Futura PT', 'Futura Std', 'Futura-Thin', 'Avenir Next', 'Avenir', 'Helvetica Neue', sans-serif;
        font-size: 36px;
        font-weight: 100;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr; /* 纵向排列，单列 */
        grid-template-rows: repeat(3, 1fr); /* 一次显示三个作品 */
        gap: 15px;
        overflow: visible; /* 允许箭头显示 */
    }
    
    .portfolio-item {
        min-width: 0; /* 允许缩小 */
        flex-shrink: 0;
    }
    
    .portfolio-container {
        position: relative;
        overflow: visible; /* 允许箭头显示 */
        padding: 0 30px; /* 为箭头留出空间 */
    }
    
    .portfolio-arrow {
        width: 50px;
        height: 50px;
        font-size: 24px;
        position: absolute;
        top: 50%; /* 第二个作品的中间位置（三个作品，第二个在中间） */
        transform: translateY(-50%);
        z-index: 100;
    }
    
    .portfolio-arrow-left {
        left: 0; /* 在第二个作品左侧中间位置 */
        right: auto;
    }
    
    .portfolio-arrow-right {
        right: 0; /* 在第二个作品右侧中间位置 */
        left: auto;
    }
    
    .section-title {
        font-size: 48px;
    }
    
    section {
        padding: 60px 20px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .scratch-card {
        width: 250px;
        height: 250px; /* 正方形 */
    }
    
    .qrcode-image {
        width: 160px;
        height: 160px;
    }
    
    .line-id {
        font-size: 14px;
    }
}

/* Footer */
.site-footer {
    background: #fff;
    padding: 40px 20px;
    text-align: center;
    border-top: 1px solid #f0f0f0;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.copyright {
    font-size: 14px;
    color: #C4C5CF;
    margin: 0;
    font-family: 'Arial', 'Helvetica Neue', sans-serif;
    letter-spacing: 0.5px;
}

/* Responsive Footer */
@media (max-width: 768px) {
    .site-footer {
        padding: 30px 15px;
    }
    
    .copyright {
        font-size: 13px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
        justify-items: center;
    }
    
    .about-avatar {
        width: 200px;
        height: 200px;
    }
    
    .about-avatar::before {
        font-size: 80px;
    }
    
    .about-info {
        grid-template-columns: 1fr;
        gap: 25px;
    }

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

    .info-value {
        font-size: 14px;
    }
    
    .services-content {
        padding: 0 0 60px 0; /* 增加底部 padding，为指示器留出空间 */
        min-height: auto;
        overflow-x: auto;
        overflow-y: visible;
        -webkit-overflow-scrolling: touch; /* 平滑滚动 */
        scroll-behavior: smooth;
        scrollbar-width: none; /* Firefox 隐藏滚动条 */
        -ms-overflow-style: none; /* IE 和 Edge 隐藏滚动条 */
        position: relative; /* 为指示器提供定位上下文 */
    }
    
    .services-content::-webkit-scrollbar {
        display: none; /* Chrome, Safari 隐藏滚动条 */
    }
    
    .arrow-workflow {
        flex-direction: row; /* 横向布局 */
        align-items: center;
        transform: translateX(0); /* 移除垂直动画，直接显示 */
        min-width: auto;
        width: auto;
        gap: 0;
        padding-left: 15px; /* 左侧留出空间 */
        padding-right: 0; /* 右侧不添加 padding，让最后一个箭头可以完全显示 */
    }
    
    .arrow-item {
        min-width: calc(100vw - 60px); /* 每个箭头宽度，略小于屏幕宽度，留出左右各30px */
        width: calc(100vw - 60px);
        max-width: calc(100vw - 60px);
        margin-left: -80px; /* 重叠效果，互相覆盖，确保没有白色空隙 */
        margin-top: 0; /* 移除垂直间距 */
        flex-shrink: 0; /* 防止压缩 */
    }
    
    .arrow-item:first-child {
        margin-left: 0; /* 第一个箭头不重叠 */
        z-index: 4;
    }
    
    .arrow-item:nth-child(2) {
        z-index: 3;
    }
    
    .arrow-item:nth-child(3) {
        z-index: 2;
    }
    
    .arrow-item:last-child {
        z-index: 1;
    }
    
    .arrow-block {
        width: 100%;
        max-width: 100%;
        height: 240px; /* 增加高度，确保内容全部显示 */
        padding: 20px 60px 20px 20px; /* 增加 padding，确保内容有足够空间 */
        clip-path: polygon(0 0, calc(100% - 50px) 0, 100% 50%, calc(100% - 50px) 100%, 0 100%); /* 横向箭头形状 */
        justify-content: flex-end; /* 内容右对齐 */
        align-items: flex-start; /* 顶部对齐，确保内容从顶部开始显示 */
        box-sizing: border-box;
        overflow-y: auto; /* 如果内容过多，允许滚动 */
    }
    
    .arrow-item-1 .arrow-block {
        clip-path: polygon(0 0, calc(100% - 50px) 0, 100% 50%, calc(100% - 50px) 100%, 0 100%); /* 横向箭头形状 */
        align-items: center; /* 文字垂直居中 */
        justify-content: center; /* 文字水平居中 */
    }
    
    .arrow-item-2 .arrow-block {
        clip-path: polygon(0 0, calc(100% - 50px) 0, 100% 50%, calc(100% - 50px) 100%, 0 100%); /* 横向箭头形状 */
    }
    
    .arrow-item-3 .arrow-block {
        clip-path: polygon(0 0, calc(100% - 50px) 0, 100% 50%, calc(100% - 50px) 100%, 0 100%); /* 横向箭头形状 */
    }
    
    .arrow-item-4 .arrow-block {
        clip-path: polygon(0 0, calc(100% - 50px) 0, 100% 50%, calc(100% - 50px) 100%, 0 100%); /* 横向箭头形状，最后一个也是箭头 */
        padding-right: 60px;
        padding-left: 20px;
    }
    
    .arrow-title {
        font-size: 14px;
        margin-bottom: 10px;
        width: 100%;
        text-align: right; /* 右对齐，与桌面版一致 */
    }
    
    .arrow-text {
        font-size: 13px;
        line-height: 1.4; /* 稍微增加行距，提高可读性 */
        text-align: right; /* 右对齐，与桌面版一致 */
        width: 100%;
        max-height: 200px; /* 限制最大高度，确保不超出箭头区域 */
        overflow-y: auto; /* 如果内容过多，允许滚动 */
    }
    
    .arrow-text div {
        margin: 0;
        line-height: 1.2;
    }
    
    /* 移除 slide-in 动画，因为不再需要垂直滑入 */
    .arrow-workflow.slide-in {
        transform: translateX(0);
    }
    
    /* 箭头指示器 - 只在手机版显示，固定在箭头下方居中，相对于 section-container */
    .arrow-indicators {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 10px;
        position: absolute;
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%);
        width: 100%;
        z-index: 10;
        pointer-events: none; /* 不阻挡滚动 */
        padding: 0 15px;
    }
    
    .indicator-dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: #ccc;
        cursor: pointer;
        transition: all 0.3s ease;
        flex-shrink: 0;
        pointer-events: auto; /* 允许点击 */
    }
    
    .indicator-dot.active {
        background: #5B402A;
        width: 24px;
        border-radius: 4px;
    }
    
    .modal-content {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        max-width: 100%;
        max-height: 100vh;
        gap: 15px;
        padding: 20px;
    }
    
    .modal-thumbnails {
        flex-direction: row;
        overflow-x: auto;
        overflow-y: visible;
        max-height: none;
        padding-right: 0;
    }
    
    .modal-thumbnail {
        width: 80px;
        height: 60px;
    }
    
    .modal-main-image img {
        max-height: 50vh;
    }
    
    .modal-right {
        max-width: 100%;
        padding-left: 0;
    }
    
    .modal-title {
        font-size: 20px;
    }
    
    .modal-description {
        font-size: 14px;
    }
    
    .modal-close {
        top: 15px;
        right: 15px;
        font-size: 36px;
    }
}