/* 
 * HHT工芸品株式会社 网站样式表
 * 完整版本 - 包含所有页面区块样式
 */

/* ===================================
   1. 重置和基础样式
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #403d39;
    --secondary-color: #eb5e28;
    --accent-color: #c1c1c1;
    --light-color: #f5f5f5;
    --dark-color: #252422;
    --text-color: #4a4a4a;
    --border-color: #e5e5e5;
    --success-color: #5ca080;
    --error-color: #e14942;
    --font-main: 'Noto Sans JP', '游ゴシック', YuGothic, 'ヒラギノ角ゴ Pro W3', 'Hiragino Kaku Gothic Pro', sans-serif;
    --font-heading: 'Noto Sans JP', '游ゴシック', YuGothic, 'ヒラギノ角ゴ Pro W3', 'Hiragino Kaku Gothic Pro', sans-serif;
    --transition: all 0.3s ease;
}

html {
    font-size: 62.5%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #ffffff;
    letter-spacing: 0.05em;
}

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

a:hover {
    color: var(--secondary-color);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===================================
   2. 响应式容器布局
   =================================== */
.container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
    box-sizing: border-box;
}

/* ===================================
   3. 标题和描述文本样式
   =================================== */
.section-title {
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    padding-bottom: 1.5rem;
    letter-spacing: 0.1em;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 8rem;
    height: 0.3rem;
    background-color: var(--secondary-color);
}

.section-desc {
    text-align: center;
    max-width: 80rem;
    margin: 0 auto 5rem;
    color: var(--text-color);
    line-height: 1.8;
}

/* ===================================
   4. 按钮样式
   =================================== */
.btn {
    display: inline-block;
    padding: 1.2rem 2.4rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 0;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
    letter-spacing: 0.1em;
}

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

.btn-large {
    padding: 1.5rem 3rem;
    font-size: 1.8rem;
}

.btn-small {
    padding: 0.8rem 1.6rem;
    font-size: 1.4rem;
}

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

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

/* ===================================
   5. 头部导航样式
   =================================== */
header {
    box-shadow: none;
    border-bottom: 1px solid #e0e0e0;
    padding: 1.5rem 0;
}

header .container {
    padding: 0 2rem;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
    width: 100%;
}

.logo-container {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

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

.logo a {
    display: block;
    margin-bottom: 1rem;
}

.logo-img {
    max-height: 80px;
    width: auto;
    border-radius: 50%;
}

.company-name {
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--dark-color);
    letter-spacing: 0.1em;
    margin: 0 2rem 0 0;
}

/* 社交媒体图标 */
.social-icons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 0.5rem;
}

.social-icon {
    font-size: 1.6rem;
    color: var(--dark-color);
    transition: var(--transition);
}

.social-icon:hover {
    color: var(--secondary-color);
}

/* 主导航菜单 */
nav {
    flex: 0 0 auto;
    margin-left: 1.5rem;
    white-space: nowrap;
}

nav ul.main-menu {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    align-items: center;
}

nav .main-menu > li {
    position: relative;
}

nav .main-menu > li > a {
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--dark-color);
    position: relative;
    padding: 1rem 0.5rem;
    display: block;
    transition: var(--transition);
    white-space: nowrap;
}

nav .main-menu > li > a:hover {
    background-color: #e0e0e0;
    color: var(--dark-color);
}

nav .main-menu > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 0;
    transition: var(--transition);
}

nav .main-menu > li > a.active {
    color: var(--dark-color);
    font-weight: 600;
    background-color: #e0e0e0;
}

/* 子菜单样式 */
.has-submenu {
    position: relative;
}

.has-submenu > a::before {
    content: '▼';
    font-size: 0.8rem;
    margin-left: 0.5rem;
    vertical-align: middle;
    color: var(--secondary-color);
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #f5f5f5;
    min-width: 25rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-radius: 0;
    padding: 1rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 100;
    border: 1px solid #e5e5e5;
    padding-left: 0;
}

.has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu li {
    padding: 0.5rem 2rem;
}

.submenu a {
    color: var(--text-color);
    font-size: 1.4rem;
    display: block;
    padding: 0.5rem 0;
    transition: var(--transition);
    letter-spacing: 0.05em;
}

.submenu a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    align-items: center;
    cursor: pointer;
    margin-right: 2rem;
}

.mobile-menu-btn span:not(.menu-text) {
    display: block;
    width: 2.5rem;
    height: 2px;
    background-color: var(--dark-color);
    margin: 0.4rem 0;
    transition: var(--transition);
}

.menu-text {
    font-size: 1.4rem;
    margin-left: 0.8rem;
    color: var(--dark-color);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ===================================
   6. Hero Slider 区域样式
   =================================== */
.hero-slider {
    position: relative;
    width: 100%;
    height: 80vh;
    min-height: 600px;
    overflow: hidden;
}

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

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.slide.active {
    opacity: 1;
    visibility: visible;
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    text-align: center;
    color: white;
}

.hero-title {
    font-size: 10rem;
    font-weight: 700;
    color: #d32f2f;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out, blink 2s infinite;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.slider-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

.control-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.control-dot.active {
    background-color: white;
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(255, 255, 255, 0.8);
    border: none;
    padding: 15px 20px;
    font-size: 20px;
    cursor: pointer;
    z-index: 3;
    transition: background-color 0.3s ease;
}

.slider-arrow:hover {
    background-color: white;
}

.slider-arrow.prev {
    left: 20px;
}

.slider-arrow.next {
    right: 20px;
}

/* ===================================
   7. Three Pillars 区域样式
   =================================== */
.three-pillars {
    padding: 80px 0;
    background-color: #fff;
}

.pillars-wrapper {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

/* 第一和第二模块的并排容器 */
.pillars-top-row {
    display: flex;
    flex-direction: row;
    gap: 40px;
    margin-bottom: 50px;
}

.pillars-top-row .pillar {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 40px;
    background-color: var(--light-color);
    border-radius: 8px;
}

.pillars-top-row .pillar-icon {
    flex: 0 0 auto;
    font-size: 4rem;
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin-bottom: 1rem;
}

.pillars-top-row .pillar-content {
    flex: 1;
}

.pillars-top-row .pillar-title {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.pillars-top-row .pillar-subtitle {
    font-size: 1.6rem;
    color: var(--text-color);
    margin-bottom: 2rem;
}

.pillars-top-row .pillar-features {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 20px;
    margin-bottom: 2rem;
}

.pillars-top-row .feature-item {
    display: flex;
    gap: 15px;
}

.pillars-top-row .feature-icon {
    flex: 0 0 40px;
    font-size: 2rem;
    color: var(--secondary-color);
}

.pillars-top-row .feature-content {
    flex: 1;
}

.pillars-top-row .feature-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.pillars-top-row .feature-description {
    font-size: 1.6rem;
    color: var(--text-color);
    line-height: 1.6;
}

.pillars-top-row .cta-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.pillars-top-row .pillar-cta {
    display: inline-block;
    padding: 12px 24px;
    background-color: #ff6b35;
    color: white;
    border-radius: 4px;
    font-size: 1.3rem;
    font-weight: 500;
    text-align: center;
    width: auto;
    box-sizing: border-box;
    display: inline-block;
    transition: all 0.3s ease;
}

.pillars-top-row .pillar-cta:hover {
    background-color: #ff8c5a;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(255, 107, 53, 0.3);
}

/* 第三模块横版布局 */
.pillar-horizontal {
    display: flex;
    flex-direction: row;
    gap: 40px;
    padding: 40px;
    background-color: var(--light-color);
    border-radius: 8px;
}

.pillar-horizontal .pillar-icon {
    flex: 0 0 100px;
    font-size: 4rem;
    color: var(--secondary-color);
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.pillar-horizontal .pillar-content {
    flex: 1;
}

.pillar-horizontal .pillar-title {
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.pillar-horizontal .pillar-subtitle {
    font-size: 2rem;
    color: var(--text-color);
    margin-bottom: 2.5rem;
}

.pillar-horizontal .pillar-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 2rem;
}

.pillar-horizontal .feature-item {
    display: flex;
    gap: 15px;
}

.pillar-horizontal .feature-icon {
    flex: 0 0 40px;
    font-size: 2rem;
    color: var(--secondary-color);
}

.pillar-horizontal .feature-content {
    flex: 1;
}

.pillar-horizontal .feature-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.pillar-horizontal .feature-description {
    font-size: 1.5rem;
    color: var(--text-color);
    line-height: 1.5;
}

.pillar-horizontal .cta-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 30px;
}

.pillar-horizontal .pillar-cta {
    display: inline-block;
    padding: 12px 24px;
    background-color: #ff6b35;
    color: white;
    border-radius: 4px;
    font-size: 1.3rem;
    font-weight: 500;
    text-align: center;
    width: auto;
    box-sizing: border-box;
    display: inline-block;
    transition: all 0.3s ease;
}

.pillar-horizontal .pillar-cta:hover {
    background-color: #ff8c5a;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(255, 107, 53, 0.3);
}

/* 第二模块流程步骤样式 - 居中显示 */
.pillars-top-row .pillar-flow {
    margin-bottom: 2rem;
}

.pillars-top-row .flow-steps {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    width: 100%;
}

.pillars-top-row .flow-step {
    padding: 8px 15px;
    background-color: white;
    border: 2px solid var(--primary-color);
    border-radius: 4px;
    font-size: 1.3rem;
    font-weight: 500;
    text-align: center;
    width: auto;
    display: inline-block;
    box-sizing: border-box;
}

.pillars-top-row .flow-arrow {
    font-size: 2rem;
    color: var(--secondary-color);
    font-weight: bold;
    text-align: center;
    padding: 2px 0;
    transform: rotate(90deg);
}

.pillars-top-row .flow-date {
    color: #e74c3c;
    font-size: 1.8rem;
    font-weight: 700;
    display: inline;
}

    /* ===================================
       8. Delivery Results 区域样式
       =================================== */
    .delivery-results {
        padding: 60px 0;
        background-color: var(--light-color);
    }

    .delivery-results h2 {
        font-size: 2.4rem;
        font-weight: 700;
        color: var(--primary-color);
        text-align: center;
        margin-bottom: 3rem;
    }

    .delivery-results-gallery {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }

    .delivery-result-item {
        width: 100%;
        max-width: 800px;
        height: auto;
        overflow: visible;
        border-radius: 8px;
    }

    .delivery-result-item img {
        width: 100%;
        height: auto;
        object-fit: contain;
        transition: transform 0.3s ease;
    }

    .delivery-result-item:hover img {
        transform: scale(1.02);
    }

    /* ===================================
       9. Bag Making Section 区域样式
       =================================== */
    .bag-making {
        padding: 80px 0;
        background-color: #fff;
        width: 100vw;
        max-width: 100vw;
        margin-left: calc(50% - 50vw);
        margin-right: calc(50% - 50vw);
    }

    .bag-making .container {
        max-width: 100%;
        padding-left: 0;
        padding-right: 0;
        width: 100%;
        margin: 0;
    }

    .bag-making-item {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .bag-making-image-wrapper {
        position: relative;
        width: 100%;
        max-width: 100%;
        text-align: center;
    }

    .bag-making-image-wrapper img {
        width: 140%;
        max-width: 140%;
        height: auto;
        border-radius: 0;
        box-shadow: none;
        display: inline-block;
        vertical-align: middle;
        object-fit: cover;
    }

    .bag-making-overlay {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        padding: 60px 80px;
        background: transparent;
        color: white;
    }

    .bag-making-overlay h2 {
        font-size: 3.2rem;
        font-weight: 700;
        color: white;
        margin-bottom: 1rem;
        text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
    }

    .bag-making-overlay h3 {
        font-size: 2.2rem;
        font-weight: 600;
        color: white;
        margin-bottom: 2rem;
        text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.5);
    }

    .bag-making-overlay .qr-code-container {
        margin: 15px 0;
        text-align: center;
    }

    .bag-making-overlay .qr-code-container img {
        width: 120px;
        height: 120px;
        border-radius: 6px;
        display: block;
        margin: 0 auto 8px;
    }

    .bag-making-overlay .qr-code-container p {
        font-size: 1.1rem;
        color: white;
        margin: 0;
        text-align: center;
        line-height: 1.5;
        text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
    }

    .bag-making-overlay .learn-more {
        display: inline-block;
        padding: 16px 36px;
        background-color: rgba(255, 255, 255, 0.95);
        color: var(--primary-color);
        border-radius: 4px;
        font-size: 1.6rem;
        font-weight: 600;
        transition: var(--transition);
    }

    .bag-making-overlay .learn-more:hover {
        background-color: transparent;
        color: white;
        border: 2px solid white;
    }

    .bag-making-item img {
        flex: 1;
        width: 100%;
        max-width: 800px;
        height: auto;
        border-radius: 8px;
        box-shadow: none;
    }

    /* ===================================
       10. Special Techniques 区域样式
       =================================== */
    .special-techniques {
        padding: 100px 0;
    }

    .special-techniques-bg {
        background: url('../images/特殊技术.jpg') center/cover no-repeat;
        padding: 100px 0;
    }

    .special-techniques-content {
        text-align: center;
        color: white;
    }

    .special-techniques-subtitle {
        font-size: 1.4rem;
        letter-spacing: 0.2em;
        margin-bottom: 1rem;
        text-transform: uppercase;
    }

    .special-techniques-title {
        font-size: 4rem;
        font-weight: 700;
        margin-bottom: 3rem;
    }

    .special-techniques-btn {
        display: inline-block;
        padding: 15px 40px;
        background-color: white;
        color: var(--dark-color);
        border-radius: 4px;
        font-size: 1.4rem;
        font-weight: 600;
        transition: var(--transition);
    }

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

    /* ===================================
       11. Fabric Cards 区域样式
       =================================== */
    .fabric-cards {
        padding: 80px 0;
        background-color: #fff;
    }

    .fabric-cards-row {
        display: flex;
        gap: 20px;
        margin-bottom: 20px;
    }

    .fabric-card-large {
        flex: 1;
        position: relative;
        height: 350px;
        overflow: hidden;
        border-radius: 8px;
    }

    .fabric-bg {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }

    .fabric-card-large:hover .fabric-bg {
        transform: scale(1.05);
    }

    .fabric-card-content {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        padding: 30px;
        background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
        color: white;
    }

    .fabric-card-subtitle {
        font-size: 1.2rem;
        letter-spacing: 0.1em;
        margin-bottom: 0.5rem;
        opacity: 0.9;
    }

    .fabric-card-title {
        font-size: 2rem;
        font-weight: 700;
        margin-bottom: 1rem;
    }

    .fabric-card-btn {
        display: inline-block;
        padding: 10px 20px;
        background-color: white;
        color: var(--dark-color);
        border-radius: 4px;
        font-size: 1.2rem;
        font-weight: 500;
        transition: var(--transition);
    }

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

    .fabric-card-full {
        flex: 1;
        position: relative;
        height: 350px;
        overflow: hidden;
        border-radius: 8px;
    }

    /* ===================================
       12. Bag Designs Denim 区域样式
       =================================== */
    .bag-designs-denim {
        padding: 80px 0;
        background-color: var(--light-color);
    }

    .bag-designs-denim-row {
        display: flex;
        gap: 20px;
    }

    .bag-designs-card {
        flex: 1;
        position: relative;
        height: 400px;
        overflow: hidden;
        border-radius: 8px;
    }

    .bag-designs-bg {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .bag-designs-content {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        text-align: center;
        color: white;
    }

    .bag-designs-subtitle {
        font-size: 1.2rem;
        letter-spacing: 0.1em;
        margin-bottom: 0.5rem;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }

    .bag-designs-title {
        font-size: 2.8rem;
        font-weight: 700;
        margin-bottom: 1.5rem;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }

    .bag-designs-buttons {
        display: flex;
        gap: 15px;
        justify-content: center;
    }

    .bag-designs-btn {
        display: inline-block;
        padding: 12px 24px;
        background-color: white;
        color: var(--dark-color);
        border-radius: 4px;
        font-size: 1.2rem;
        font-weight: 500;
        transition: var(--transition);
    }

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

    .denim-card {
        flex: 1;
        position: relative;
        height: 400px;
        overflow: hidden;
        border-radius: 8px;
    }

    .denim-bg {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .denim-card-content {
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        padding: 30px;
        background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
        color: white;
    }

    .denim-card-subtitle {
        font-size: 1.2rem;
        letter-spacing: 0.1em;
        margin-bottom: 0.5rem;
        opacity: 0.9;
    }

    .denim-card-title {
        font-size: 2.4rem;
        font-weight: 700;
        margin-bottom: 1rem;
    }

    .denim-card-btn {
        display: inline-block;
        padding: 10px 20px;
        background-color: white;
        color: var(--dark-color);
        border-radius: 4px;
        font-size: 1.2rem;
        font-weight: 500;
        transition: var(--transition);
    }

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

    /* ===================================
       13. Progress Stats 区域样式
       =================================== */
    .progress-stats {
        padding: 80px 0;
        background-color: #fff;
    }

    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
    }

    .stat-item {
        text-align: center;
        padding: 30px;
        background-color: var(--light-color);
        border-radius: 8px;
        transition: var(--transition);
    }

    .stat-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }

    .stat-number {
        font-size: 4.8rem;
        font-weight: 700;
        color: var(--secondary-color);
        margin-bottom: 1rem;
        line-height: 1;
    }

    .stat-label {
        font-size: 1.4rem;
        color: var(--text-color);
        letter-spacing: 0.1em;
    }

    /* ===================================
       14. Comparison Section 区域样式
       =================================== */
    .comparison-section {
        padding: 80px 0;
        background-color: var(--light-color);
    }

    .comparison-container {
        display: flex;
        gap: 40px;
    }

    .comparison-card {
        flex: 1;
        padding: 40px;
        border-radius: 8px;
    }

    .comparison-card.hht {
        background-color: white;
        border: 3px solid var(--secondary-color);
    }

    .comparison-card.traditional {
        background-color: #f9f9f9;
        border: 1px solid #ddd;
    }

    .comparison-card h3 {
        font-size: 2.4rem;
        font-weight: 700;
        margin-bottom: 2rem;
        text-align: center;
    }

    .comparison-card.hht h3 {
        color: var(--secondary-color);
    }

    .comparison-card.traditional h3 {
        color: var(--text-color);
    }

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

    .comparison-list li {
        padding: 15px 0;
        border-bottom: 1px solid #eee;
        display: flex;
        align-items: flex-start;
        gap: 15px;
    }

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

    .comparison-icon {
        flex: 0 0 30px;
        font-size: 1.8rem;
        text-align: center;
    }

    .comparison-card.hht .comparison-icon {
        color: var(--success-color);
    }

    .comparison-card.traditional .comparison-icon {
        color: var(--error-color);
    }

    .comparison-text {
        flex: 1;
        font-size: 1.5rem;
        line-height: 1.6;
    }

    /* ===================================
       15. Footer 区域样式
       =================================== */
    footer {
        background-color: var(--dark-color);
        color: white;
        padding: 60px 0 30px;
    }

    .footer-content {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 40px;
    }

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

    .footer-brand .logo {
        align-items: flex-start;
        margin-bottom: 1.5rem;
    }

    .footer-brand p {
        font-size: 1.4rem;
        line-height: 1.8;
        color: rgba(255, 255, 255, 0.7);
    }

    .footer-section h4 {
        font-size: 1.6rem;
        font-weight: 600;
        margin-bottom: 2rem;
        color: white;
    }

    .footer-section ul li {
        margin-bottom: 1rem;
    }

    .footer-section ul li a {
        font-size: 1.4rem;
        color: rgba(255, 255, 255, 0.7);
    }

    .footer-section ul li a:hover {
        color: var(--secondary-color);
    }

    .footer-bottom {
        padding-top: 30px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .footer-bottom p {
        font-size: 1.3rem;
        color: rgba(255, 255, 255, 0.5);
    }

    .footer-social {
        display: flex;
        gap: 20px;
    }

    .footer-social a {
        font-size: 1.8rem;
        color: rgba(255, 255, 255, 0.7);
    }

    .footer-social a:hover {
        color: var(--secondary-color);
    }

    /* ===================================
       16. 响应式设计
       =================================== */
    @media (max-width: 1024px) {
        .container {
            max-width: 960px;
        }

        .hero-title {
            font-size: 8rem;
        }

        .pillars-top-row {
            flex-direction: column;
        }

        .pillar-horizontal {
            flex-direction: column;
        }

        .pillar-horizontal .pillar-features {
            grid-template-columns: 1fr;
        }

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

        .footer-content {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (max-width: 768px) {
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }

        .hero-title {
            font-size: 6rem;
        }

        .header-content {
            flex-wrap: wrap;
        }

        nav {
            order: 3;
            width: 100%;
            margin-left: 0;
            margin-top: 1rem;
            display: none;
        }

        nav.active {
            display: block;
        }

        nav ul.main-menu {
            flex-direction: column;
            gap: 0;
        }

        nav .main-menu > li {
            border-bottom: 1px solid #e0e0e0;
        }

        nav .main-menu > li > a {
            padding: 1.5rem;
        }

        .mobile-menu-btn {
            display: flex;
        }

        .three-pillars {
            padding: 60px 0;
        }

        .section-title {
            font-size: 2.4rem;
        }

        .stat-number {
            font-size: 3.6rem;
        }

        .comparison-container {
            flex-direction: column;
        }

        .footer-content {
            grid-template-columns: 1fr;
        }

        .footer-bottom {
            flex-direction: column;
            gap: 20px;
            text-align: center;
        }
    }

    @media (max-width: 480px) {
        .hero-title {
            font-size: 4rem;
        }

        .hero-slider {
            height: 60vh;
            min-height: 400px;
        }

        .stats-grid {
            grid-template-columns: 1fr;
        }

        .bag-making-item {
            flex-direction: column;
        }

        .bag-making-item img {
            width: 100%;
        }

        .fabric-cards-row {
            flex-direction: column;
        }

        .bag-designs-denim-row {
            flex-direction: column;
        }
    }

    /* ===================================
       17. 动画效果
       =================================== */
    @keyframes fadeIn {
        from {
            opacity: 0;
        }
        to {
            opacity: 1;
        }
    }

    @keyframes slideUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .fade-in {
        animation: fadeIn 0.5s ease-out;
    }

    .slide-up {
        animation: slideUp 0.5s ease-out;
    }

    /* ===================================
       18. 其他实用样式
       =================================== */
    .text-center {
        text-align: center;
    }

    .text-primary {
        color: var(--primary-color);
    }

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

    .bg-light {
        background-color: var(--light-color);
    }

    .bg-dark {
        background-color: var(--dark-color);
    }

    .mt-2 {
        margin-top: 2rem;
    }

    .mb-2 {
        margin-bottom: 2rem;
    }

    .py-4 {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }

    /* ===================================
       19. Techniques Page 区域样式
       =================================== */
    .technique-header {
        text-align: center;
        padding: 40px 0;
        background-color: var(--light-color);
    }

    .technique-header h2 {
        font-size: 2.4rem;
        font-weight: 700;
        color: var(--primary-color);
    }

    .technique-images {
        padding: 60px 0;
        background-color: #fff;
    }

    .image-row {
        display: flex;
        gap: 20px;
        margin-bottom: 20px;
        justify-content: space-between;
    }

    .image-item {
        flex: 1;
        text-align: center;
    }

    .image-item img {
        width: 100%;
        height: auto;
        border-radius: 8px;
        transition: transform 0.3s ease;
    }

    .image-item:hover img {
        transform: scale(1.02);
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        .image-row {
            flex-direction: column;
        }

        .image-item {
            margin-bottom: 20px;
        }
    }

    /* 打印样式 */
    @media print {
        header,
        .hero-slider,
        footer,
        .mobile-menu-btn {
            display: none;
        }

        body {
            font-size: 12pt;
            color: black;
            background: white;
        }

        a {
            color: black;
            text-decoration: underline;
        }
    }