/* ============================================
   SADA Lighting - COMPANY Page Styles
   Modern CSS with BEM naming convention
   ============================================ */

/* CSS Reset & Base Styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: Arial, 'Helvetica Neue', sans-serif;
    color: #555555;
    line-height: 1.6;
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    background-color: #ffffff;
    border-bottom: 1px solid #eeeeee;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.header__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 95px;
    gap: 40px;
}

.header__logo {
    flex-shrink: 0;
}

.header__logo img {
    height: auto;
    max-width: 276px;
    width: auto;
}

.header__nav {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.nav__list {
    display: flex;
    gap: 20px;
    align-items: center;
    justify-content: flex-end;
}

.nav__link {
    font-size: 16px;
    color: #4a4a4a;
    font-weight: normal;
    padding: 10px 5px;
    transition: all 0.3s ease;
    position: relative;
}

.nav__link:hover,
.nav__item--active .nav__link {
    color: #000000;
    font-weight: 600;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: #000000;
    transition: width 0.3s ease;
}

.nav__link:hover::after,
.nav__item--active .nav__link::after {
    width: 80%;
}

/* Desktop Submenu */
.nav__item {
    position: relative;
}

.submenu {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    background-color: #ffffff;
    min-width: 200px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

/* 增加 hover 间隙，防止鼠标移出时菜单消失 */
.submenu::before {
    content: '';
    position: absolute;
    top: -12px;
    left: 0;
    width: 100%;
    height: 12px;
}

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

.submenu li a {
    display: block;
    padding: 10px 20px;
    font-size: 14px;
    color: #4a4a4a;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.submenu li a:hover {
    color: #000000;
    background-color: #f5f5f5;
    font-weight: 600;
}

/* Mobile Submenu */
.mobile_submenu {
    padding-left: 15px;
    background-color: #f9f9f9;
}

.mobile_submenu li {
    border-bottom: 1px solid #eeeeee;
}

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

.mobile_submenu li a {
    display: block;
    padding: 12px 0;
    font-size: 14px;
    color: #666666;
    transition: color 0.3s;
}

.mobile_submenu li a:hover {
    color: #c8102e;
}

/* ============================================
   Main Content Sections
   ============================================ */
.main {
    min-height: calc(100vh - 95px - 300px);
}

.section {
    padding: 60px 0;
}

.section__header {
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 20px;
}

/* 首页标题样式 - 居中对齐，无分隔线 */
.section__header--home {
    display: block;
    margin-bottom: 40px;
    text-align: center;
}

.section__title {
    font-size: 22px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.section__divider {
    flex: 1;
    height: 1px;
    background-color: rgba(221, 221, 221, 1);
}

/* Text Center Utility */
.text-center {
    text-align: center;
}

.section__subtitle {
    font-size: 14px;
    color: #666666;
    margin-top: 10px;
}

/* 首页标题样式 - 无分隔线，更大更细 */
.section__header--home .section__title {
    font-size: 32px;
    font-weight: 300;
    color: #000000;
    margin-bottom: 10px;
    letter-spacing: 1px;
    text-align: center;
}

.section__header--home .section__subtitle {
    font-size: 14px;
    color: #666666;
    font-weight: 400;
    text-align: center;
}

/* 居中带分隔线标题样式（用于内页） */
.section__header--center {
    display: block;
    text-align: center;
    margin-bottom: 40px;
}

.section__header--center .section__title {
    font-size: 32px;
    font-weight: 300;
    color: #000000;
    margin-bottom: 20px;
    letter-spacing: 1px;
    text-align: center;
}

.section__header--center .section__divider {
    width: 100%;
    height: 1px;
    background-color: #000000;
    margin: 0 auto;
}

.section__content {
    margin-top: 30px;
}

/* ============================================
   Company Profile Section
   ============================================ */
.section--profile {
    background-color: #ffffff;
}

.profile__text {
    font-size: 16px;
    line-height: 1.5;
    color: #333;
    text-align: left;
}

.profile__text img {
    display: inline-block;
    vertical-align: middle;
    height: 1.4em;
    width: auto;
    margin: 0 4px;
    position: relative;
    top: -0.1em;
}


/* ============================================
   Production Capacity Section
   ============================================ */
.section--production {
    background-color: #ffffff;
    padding-top: 40px;
}

.production__swiper {
    margin-top: 40px;
    overflow: hidden;
}

.production-swiper {
    width: 100%;
    padding-bottom: 20px;
}

.production-swiper .swiper-slide {
    width: auto;
}

.production__item {
    overflow: hidden;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    width: 440px;
}

.production__item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.production__item img {
    width: 100%;
    height: 330px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

/* ============================================
   R&D Capabilities Section
   ============================================ */
.section--rnd {
    background-color: #ffffff;
    padding-bottom: 80px;
}

.rnd__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-top: 40px;
}

.rnd__item {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.rnd__item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.rnd__item img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.rnd__caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.6);
    color: #ffffff;
    padding: 8px 12px;
    font-size: 14px;
    text-align: center;
    font-weight: 400;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: #f0f0f0;
    padding: 60px 0 40px;
    border-top: 1px solid #e0e0e0;
}

.footer__content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.5fr 1fr;
    gap: 40px;
    align-items: start;
}

.footer__logo img {
    height: 45px;
    width: auto;
}

.footer__title {
    font-size: 14px;
    font-weight: 600;
    color: #333333;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.footer__nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.footer__nav a {
    font-size: 12px;
    color: #666666;
    transition: color 0.3s ease;
}

.footer__nav a:hover {
    color: #000000;
    text-decoration: underline;
}

.contact__list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact__list li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 12px;
    color: #666666;
    line-height: 1.5;
}

.contact__icon {
    flex-shrink: 0;
    width: 18px;
    text-align: center;
}

.footer__qr img {
    width: 120px;
    height: 120px;
    border: 1px solid #e0e0e0;
    padding: 5px;
    background-color: #ffffff;
}

/* ============================================
   Hero Banner Section - 全屏背景图轮播
   ============================================ */
.section--hero {
    padding: 0;
}

/* 手机端 Banner 默认隐藏，PC端显示 */
.hero--mobile {
    display: none;
}
.hero--desktop {
    display: block;
}

.hero-swiper {
    width: 100%;
    height: 60vh; /* 使用视口高度的60% */
    min-height: 400px; /* 最小高度保证 */
    max-height: 700px; /* 最大高度限制 */
}

.hero-swiper .swiper-slide {
    position: relative;
    overflow: hidden;
}

.hero__slide-bg {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center top; /* 改为顶部对齐，确保重要内容不被裁掉 */
    background-repeat: no-repeat;
}

.hero-swiper .swiper-pagination {
    bottom: 20px;
}

/* ============================================
   Classification Section
   ============================================ */
.section--classification {
    padding: 80px 0;
    background-color: #ffffff;
}

.classification__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.classification__item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.classification__item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.classification__item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.classification__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    transform: translateX(-100%);
    transition: transform 0.4s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 2;
}

.classification__item:hover .classification__overlay {
    transform: translateX(0);
}

.classification__overlay-content {
    text-align: left;
}

.classification__overlay-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 10px;
    line-height: 1.4;
}

.classification__overlay-content p {
    font-size: 13px;
    line-height: 1.6;
    color: #666666;
    margin-bottom: 15px;
}

.classification__more {
    display: inline-block;
    padding: 6px 20px;
    background-color: transparent;
    color: #000000;
    border: 1px solid #000000;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.classification__more:hover {
    background-color: #000000;
    color: #ffffff;
}

/* ============================================
   Why Choose Us Section
   ============================================ */
.section--why-choose {
    padding: 0;
}

.section--why-choose > .container {
    padding: 25px 0 20px;
    background-color: #ffffff;
}

.why-choose__content {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
}

.why-choose__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}

.why-choose__content > .container {
    position: relative;
    z-index: 2;
}

.section--why-choose > .container .section__header {
    margin-bottom: 0;
}

.section--why-choose > .container .section__title {
    font-size: 32px;
    font-weight: 300;
    color: #000000;
    text-align: center;
}

.section__title--white {
    color: #ffffff;
}

.why-choose__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-top: 60px;
}

.stat__item {
    text-align: center;
    color: #ffffff;
    transition: transform 0.3s ease;
}

.stat__item:hover {
    transform: translateY(-5px);
}

.stat__icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 15px;
    border: 2px solid #ffffff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #ffffff;
    transition: all 0.3s ease;
}

.stat__item:hover .stat__icon {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
}

.stat__number {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat__label {
    font-size: 14px;
    opacity: 0.9;
}

/* ============================================
   Product Feature Section
   ============================================ */
.section--product-feature {
    padding: 80px 0;
    background-color: #ffffff;
}

.product-feature__content {
    display: flex;
    gap: 60px;
    align-items: center;
}

.product-feature__image {
    flex: 0 0 400px;
}

.product-feature__image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.product-feature__text {
    flex: 1;
}

.product-feature__title {
    font-size: 18px;
    font-weight: 600;
    color: #333333;
    margin-bottom: 10px;
}

.product-feature__heading {
    font-size: 28px;
    font-weight: 700;
    color: #000000;
    margin-bottom: 20px;
}

.product-feature__description {
    font-size: 14px;
    line-height: 1.5;
    color: #666666;
    margin-bottom: 30px;
}

.product-feature__description img {
    display: inline-block;
    vertical-align: middle;
    height: 1.4em;
    width: auto;
    margin: 0 4px;
    position: relative;
    top: -0.1em;
}

/* ============================================
   Projects Section
   ============================================ */
.section--projects {
    padding: 80px 0;
    background-color: #f5f5f5;
}

.projects__types {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 40px 0;
}

.project-type__card {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

.project-type__title {
    font-size: 16px;
    font-weight: 600;
    color: #333333;
    margin-bottom: 15px;
    text-align: center;
}

.project-type__text {
    font-size: 13px;
    line-height: 1.6;
    color: #666666;
    text-align: center;
}

.projects__gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-top: 30px;
}

.projects__item {
    overflow: hidden;
    border-radius: 4px;
}

.projects__item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

/* ============================================
   Newsletter Section
   ============================================ */
.section--newsletter {
    padding: 60px 0;
    background-color: #ffffff;
}

.newsletter__content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.newsletter__title {
    font-size: 24px;
    font-weight: 600;
    color: #333333;
    margin-bottom: 10px;
}

.newsletter__text {
    font-size: 14px;
    color: #666666;
    margin-bottom: 30px;
}

.newsletter__form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form__group label {
    font-size: 13px;
    color: #666666;
    text-align: left;
}

.form__group input,
.form__group textarea {
    padding: 12px 15px;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form__group input:focus,
.form__group textarea:focus {
    outline: none;
    border-color: #000000;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn--primary {
    background-color: #000000;
    color: #ffffff;
}

.btn--primary:hover {
    background-color: #333333;
}

.btn--submit {
    background-color: #e0e0e0;
    color: #333333;
    align-self: center;
}

.btn--submit:hover {
    background-color: #cccccc;
}

.newsletter__social {
    margin-top: 30px;
    font-size: 13px;
    color: #666666;
}

/* ============================================
   Page Banner (内页通用Banner)
   ============================================ */
.page-banner {
    position: relative;
    width: 100%;
    height: 350px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.page-banner > div {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 0 20px;
}

.page-banner h1 {
    font-size: 36px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.page-banner p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* ============================================
   Breadcrumb
   ============================================ */
.breadcrumb {
    background-color: #f5f5f5;
    padding: 40px 0;
    border-bottom: 1px solid #e0e0e0;
}

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

.breadcrumb__title {
    font-size: 24px;
    font-weight: 600;
    color: #000000;
}

.breadcrumb__info {
    text-align: right;
    font-size: 13px;
    color: #666666;
    line-height: 1.6;
}

.breadcrumb__current {
    color: #999999;
}

/* ============================================
   Brand Story Section
   ============================================ */
.section--brand-story {
    padding: 60px 0 100px;
}

.brand-story__tabs {
    margin: 40px 0;
}

.tabs__nav {
    display: flex;
    justify-content: center;
    gap: 0;
    border-bottom: 1px solid #e0e0e0;
}

.tabs__btn {
    padding: 12px 30px;
    border: none;
    background: none;
    font-size: 16px;
    color: #666666;
    cursor: pointer;
    position: relative;
    transition: color 0.3s ease;
}

.tabs__btn:hover {
    color: #000000;
}

.tabs__btn--active {
    color: #000000;
    font-weight: 600;
}

.tabs__btn--active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #ff6b6b;
}

.brand-story__vision,
.brand-story__objectives {
    text-align: center;
    margin: 60px 0;
}

.vision__title,
.objectives__title {
    font-size: 32px;
    font-weight: 600;
    color: #222222;
    margin-bottom: 20px;
}

.vision__text,
.objectives__text {
    font-size: 16px;
    line-height: 1.75;
    color: #444444;
    max-width: 800px;
    margin: 0 auto;
}

.brand-story__logo {
    text-align: center;
    margin: 60px 0;
}

.logo__title {
    font-size: 32px;
    font-weight: 600;
    color: #222222;
    margin-bottom: 40px;
    text-align: center;
}

.logo__images {
    display: flex;
    justify-content: center;
    gap: 60px;
    align-items: center;
}

.logo__images img {
    height: 40px;
    width: auto;
}

.brand-story__about {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    margin-top: 60px;
}

.about__swiper {
    flex: 1;
    max-width: 40%;
}

.about-swiper {
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

.about-swiper img {
    width: 100%;
    height: 450px;
    object-fit: cover;
}

.about-swiper .swiper-button-next,
.about-swiper .swiper-button-prev {
    color: #ffffff;
    width: 40px;
    height: 60px;
    background: rgba(0, 0, 0, 0.3);
    margin-top: -30px;
    border-radius: 0;
}

.about-swiper .swiper-button-next:after,
.about-swiper .swiper-button-prev:after {
    font-size: 18px;
}

.about-swiper .swiper-button-prev {
    left: 0;
}

.about-swiper .swiper-button-next {
    right: 0;
}

.about-swiper .swiper-pagination {
    bottom: 15px;
}

.about-swiper .swiper-pagination-bullet {
    width: 10px;
    height: 10px;
    background: #ffffff;
    opacity: 0.7;
    border-radius: 50%;
}

.about-swiper .swiper-pagination-bullet-active {
    opacity: 1;
    background: #c8102e;
}

.about__text {
    flex: 1;
}

.about__title {
    font-size: 36px;
    font-weight: 600;
    color: #222222;
    margin-bottom: 25px;
}

.about__description {
    font-size: 15px;
    line-height: 1.3;
    color: #666666;
}
.about__description img {
    display: inline-block;
    vertical-align: middle;
    height: 1.4em;
    width: auto;
    margin: 0 4px;
    position: relative;
    top: -0.1em;
}


/* Our Culture Tab */
.brand-story__culture,
.brand-story__sustainability {
    padding: 40px 0;
}

/* Culture Section */
.culture__section {
    margin-bottom: 50px;
}

.culture__section--center {
    text-align: center;
}

.culture__heading {
    font-size: 32px;
    font-weight: 600;
    color: #222222;
    margin-bottom: 20px;
}

.culture__heading--left {
    text-align: left;
}

.culture__desc {
    font-size: 16px;
    line-height: 1.75;
    color: #444444;
    max-width: 800px;
    margin: 0 auto;
}

.culture__desc--left {
    text-align: left;
    margin: 0;
}

/* Culture Team Section */
.culture__team {
    display: flex;
    gap: 40px;
    align-items: center;
    margin: 60px 0;
}

.culture__team-text {
    flex: 1;
}

.culture__team-swiper {
    flex: 1;
    border-radius: 8px;
    overflow: hidden;
}

.culture-swiper {
    width: 100%;
    height: 280px;
    padding-bottom: 35px;
}

.culture-swiper .swiper-slide {
    height: 250px;
    border-radius: 8px;
    overflow: hidden;
}

.culture-swiper .swiper-slide img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.culture-swiper .swiper-pagination {
    bottom: 0;
}

.culture-swiper .swiper-button-next,
.culture-swiper .swiper-button-prev {
    color: #000000;
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    margin-top: -30px;
}

.culture-swiper .swiper-button-next:after,
.culture-swiper .swiper-button-prev:after {
    font-size: 14px;
}

.culture-swiper .swiper-pagination-bullet {
    background: #000000;
    opacity: 0.3;
}

.culture-swiper .swiper-pagination-bullet-active {
    opacity: 1;
    background: #000000;
}

/* Culture Icons */
.culture__icons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-top: 60px;
    text-align: center;
}

.culture__icon-item {
    padding: 20px;
}

.culture__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border: 2px solid #000000;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: #000000;
}

.culture__icon-item h4 {
    font-size: 18px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 10px;
}

.culture__icon-item p {
    font-size: 14px;
    line-height: 1.6;
    color: #666666;
}

/* Sustainability Tab */
.sustainability__design {
    display: flex;
    gap: 40px;
    align-items: center;
    margin-bottom: 50px;
}

.sustainability__design-text {
    flex: 1;
}

.sustainability__design-image {
    flex: 1;
    border-radius: 8px;
    overflow: hidden;
}

.sustainability__design-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.sustainability__heading {
    font-size: 32px;
    font-weight: 600;
    color: #222222;
    margin-bottom: 20px;
}

.sustainability__heading--center {
    text-align: center;
}

.sustainability__desc {
    font-size: 16px;
    line-height: 1.75;
    color: #444444;
}

.sustainability__desc--center {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 30px;
}

.sustainability__section--center {
    text-align: center;
    margin-bottom: 40px;
}

/* Sustainability Gallery */
.sustainability__gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 40px 0;
}

.sustainability__gallery-item {
    border-radius: 8px;
    overflow: hidden;
}

.sustainability__gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

/* Supply Chain */
.sustainability__supply {
    margin: 60px 0;
}

.sustainability__logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 30px;
}

.sustainability__logo-item {
    flex: 0 0 auto;
    padding: 1px;
    background: #eee;
    border-radius: 3px;
    transition: box-shadow 0.35s ease, transform 0.35s ease;
}

.sustainability__logo-item a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px 14px;
    background: #ffffff;
    border-radius: 2px;
    overflow: visible;
}

.sustainability__logo-item img {
    display: block;
    max-width: 100%;
    max-height: 56px;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: transform 0.35s ease;
}

.sustainability__logo-item:hover {
    transform: translateY(-6px) scale(1.06);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
}

.sustainability__logo-item:hover img {
    transform: scale(1.18);
}

/* Materials */
.sustainability__materials {
    margin-top: 60px;
}

.sustainability__materials-content {
    display: flex;
    gap: 40px;
    margin-top: 30px;
}

.sustainability__materials-text {
    flex: 1;
}

.sustainability__subheading {
    font-size: 24px;
    font-weight: 600;
    color: #222222;
    margin-bottom: 15px;
}

.sustainability__materials-images {
    flex: 2;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.sustainability__material-item {
    text-align: center;
}

.sustainability__material-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 10px;
}

.sustainability__material-item p {
    font-size: 12px;
    line-height: 1.5;
    color: #666666;
}

/* ============================================
   Contact Info Section
   ============================================ */
.section--contact-info {
    padding: 60px 0;
}

.contact-info__content {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

.contact-info__details {
    flex: 1;
}

.contact-info__heading {
    font-size: 24px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 10px;
}

.contact-info__subtitle {
    font-size: 14px;
    color: #999999;
    margin-bottom: 20px;
}

.contact-info__divider {
    width: 100%;
    height: 1px;
    background-color: #e0e0e0;
    margin-bottom: 30px;
}

.contact-info__list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-info__list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    color: #666666;
    line-height: 1.6;
}

.contact-info__icon {
    flex-shrink: 0;
    width: 20px;
    text-align: center;
}

.contact-info__map {
    flex: 1;
}

.contact-info__map img,
.contact-info__map #contactMap {
    width: 100%;
    height: 400px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

/* ============================================
   Message Inquiry Section
   ============================================ */
.section--message {
    padding: 60px 0;
    background-color: #f5f5f5;
}

.message__content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.message__title {
    font-size: 24px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 10px;
}

.message__text {
    font-size: 14px;
    color: #666666;
    margin-bottom: 40px;
}

.message__form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form__group--full {
    width: 100%;
}

.form__row--captcha {
    grid-template-columns: 1fr auto;
    align-items: center;
}

.form__captcha img {
    height: 40px;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
}

.form__actions {
    text-align: center;
    margin-top: 20px;
}

/* ============================================
   Product Introduction Section
   ============================================ */
.section--product-intro {
    padding: 40px 0;
}

.product-intro__text {
    text-align: center;
    font-size: 14px;
    color: #666666;
    margin-bottom: 40px;
}

/* ============================================
   Projects Section - 首页项目展示
   ============================================ */
.section--projects {
    padding: 80px 0;
    background-color: #f5f5f5;
}

.projects__categories {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 40px 0;
}

.project-category {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 8px;
}

.project-category h4 {
    font-size: 16px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 15px;
    text-align: center;
}

.project-category p {
    font-size: 13px;
    line-height: 1.6;
    color: #666666;
    text-align: center;
}

.projects__swiper {
    margin-top: 30px;
}

.projects-swiper .swiper-slide {
    height: 200px;
    overflow: hidden;
    border-radius: 4px;
}

.projects-swiper .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ============================================
   Mailing List Section
   ============================================ */
.section--mailing {
    padding: 60px 0;
    background-color: #ffffff;
}

.mailing__content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.mailing__title {
    font-size: 24px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 10px;
}

.mailing__text {
    font-size: 14px;
    color: #666666;
    margin-bottom: 40px;
}

.mailing__form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 600px;
    margin: 0 auto;
}

.mailing__form .form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.mailing__form .form__group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mailing__form label {
    font-size: 13px;
    color: #666666;
    text-align: left;
}

.mailing__form input {
    padding: 10px 15px;
    border: 1px solid #e0e0e0;
    border-radius: 20px;
    font-size: 14px;
}

.mailing__form input:focus {
    outline: none;
    border-color: #000000;
}

.btn--submit {
    background-color: #f5f5f5;
    color: #666666;
    padding: 10px 40px;
    border: none;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    align-self: center;
}

.btn--submit:hover {
    background-color: #000000;
    color: #ffffff;
}

.mailing__social {
    margin-top: 30px;
    font-size: 13px;
    color: #666666;
}

/* ============================================
   Product List Section
   ============================================ */
.section--product-list {
    padding: 40px 0 80px;
}

.product-list__layout {
    display: flex;
    gap: 30px;
}

.product-list__sidebar {
    flex: 0 0 310px;
    background-color: #f5f5f5;
    padding: 20px;
    border-radius: 8px;
}

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

.sidebar__toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: #333333;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

.sidebar__content {
    display: block;
}

.sidebar__title {
    font-size: 22px;
    font-weight: 400;
    color: #000000;
    margin-bottom: 20px;
    text-align: center;
}

.sidebar__list {
    display: flex;
    flex-direction: column;
    gap: 0;
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
}

.sidebar__item {
    padding: 14px 15px;
    font-size: 14px;
    color: #333333;
    border-bottom: 1px solid #e0e0e0;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: #ffffff;
}

.sidebar__item:hover {
    color: #000000;
    background-color: #f8f8f8;
}

.sidebar__item--active {
    color: #000000;
    font-weight: 600;
    background-color: #ffffff;
}

.sidebar__item:last-child {
    border-bottom: none;
}

.btn--contact {
    display: block;
    width: 100%;
    padding: 14px;
    margin-top: 20px;
    background-color: #cc0000;
    color: #ffffff;
    text-align: center;
    border-radius: 0;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: background-color 0.3s;
}

.btn--contact:hover {
    background-color: #a00000;
}

.product-list__grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: start;
}

.product-card {
    background-color: #f5f5f5;
    border-radius: 4px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.product-card__image {
    width: 100%;
    height: 280px;
    overflow: hidden;
    background-color: #ffffff;
}

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

.product-card:hover .product-card__image img {
    transform: scale(1.05);
}

.product-card__info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background-color: #e8e8e8;
    gap: 8px;
}

.product-card__title {
    font-size: 16px;
    color: #000;
    font-weight: 600;
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.product-card__spec {
    font-size: 12px;
    color: #000;
    flex-shrink: 0;
    max-width: 50%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================
   Pagination
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 50px;
}

.pagination ul.pagination {
    display: flex;
    gap: 8px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.pagination ul.pagination > li {
    display: inline-block;
}

.pagination ul.pagination > li > a,
.pagination ul.pagination > li > span {
    display: inline-block;
    padding: 8px 14px;
    border: 1px solid #e0e0e0;
    background-color: #ffffff;
    color: #666666;
    font-size: 13px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.pagination ul.pagination > li > a:hover {
    border-color: #000000;
    color: #000000;
    background-color: #ffffff;
}

.pagination ul.pagination > .active > a,
.pagination ul.pagination > .active > span,
.pagination ul.pagination > .active > a:hover,
.pagination ul.pagination > .active > span:hover {
    background-color: #000000;
    color: #ffffff;
    border-color: #000000;
    cursor: default;
}

.pagination ul.pagination > .disabled > span,
.pagination ul.pagination > .disabled > a,
.pagination ul.pagination > .disabled > span:hover,
.pagination ul.pagination > .disabled > a:hover {
    opacity: 0.5;
    cursor: not-allowed;
    color: #666666;
    background-color: #ffffff;
    border-color: #e0e0e0;
}

/* ============================================
   Projects Page Section
   ============================================ */
.section--projects-page {
    padding: 40px 0 80px;
}

.projects-page__intro {
    font-size: 14px;
    line-height: 1.8;
    color: #666666;
    margin-bottom: 50px;
}

.projects-page__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.project-item {
    text-align: center;
}

.project-item__image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    border-radius: 4px;
    margin-bottom: 15px;
}

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

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

.project-item__title {
    font-size: 14px;
    color: #666666;
}

/* ============================================
   Product Detail Page
   ============================================ */
.section--product-detail {
    padding: 40px 0 80px;
}

.product-detail__layout {
    display: flex;
    gap: 20px;
}

.product-detail__layout .product-list__sidebar {
    flex: 0 0 250px;
    background-color: transparent;
    padding: 0;
    border-radius: 0;
}

.product-detail__layout .sidebar__title {
    font-size: 20px;
    font-weight: 600;
    text-align: left;
    margin-bottom: 25px;
}

.product-detail__layout .sidebar__list {
    border: none;
    background-color: transparent;
}

.product-detail__layout .sidebar__item {
    background-color: transparent;
    padding: 14px 0;
}

.product-detail__layout .sidebar__item:hover,
.product-detail__layout .sidebar__item--active {
    background-color: transparent;
}

.product-detail__layout .btn--contact {
    display: none;
}

.product-detail__sidebar {
    flex: 0 0 200px;
}

.product-detail__content {
    flex: 0 0 890px;
    max-width: 890px;
}

.product-detail__top {
    display: flex;
    gap: 40px;
    margin-bottom: 60px;
}

.product-detail__gallery {
    flex: 0 0 400px;
    max-width: 400px;
}

.product-detail__main-image {
    width: 100%;
    max-width: 400px;
    height: 400px;
    background-color: #f5f5f5;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 15px;
    position: relative;
}

.product-detail__main-image .main-image-swiper {
    width: 100%;
    max-width: 400px;
    height: 100%;
    position: relative;
}

.product-detail__main-image .swiper-wrapper {
    width: 100%;
    height: 100%;
}

.product-detail__main-image .swiper-slide {
    width: 100% !important;
    max-width: 400px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f5f5f5;
}

.product-detail__main-image .swiper-slide img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    padding: 20px;
    display: block;
}

/* Swiper Navigation Buttons */
.product-detail__main-image .swiper-button-next,
.product-detail__main-image .swiper-button-prev,
.product-thumb-swiper .swiper-button-next,
.product-thumb-swiper .swiper-button-prev {
    color: #333333;
    background-color: rgba(255, 255, 255, 0.8);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.product-detail__main-image .swiper-button-next:hover,
.product-detail__main-image .swiper-button-prev:hover,
.product-thumb-swiper .swiper-button-next:hover,
.product-thumb-swiper .swiper-button-prev:hover {
    background-color: rgba(255, 255, 255, 1);
    color: #000000;
}

.product-detail__main-image .swiper-button-next::after,
.product-detail__main-image .swiper-button-prev::after,
.product-thumb-swiper .swiper-button-next::after,
.product-thumb-swiper .swiper-button-prev::after {
    font-size: 16px;
    font-weight: bold;
}

.product-detail__thumbs {
    position: relative;
    margin-top: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.product-detail__thumbs .swiper-button-prev,
.product-detail__thumbs .swiper-button-next {
    position: static;
    margin: 0;
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.product-detail__thumbs .swiper-button-prev:hover,
.product-detail__thumbs .swiper-button-next:hover {
    background-color: rgba(255, 255, 255, 1);
}

.product-detail__thumbs .swiper-button-prev::after,
.product-detail__thumbs .swiper-button-next::after {
    font-size: 14px;
    color: #666666;
    font-weight: bold;
}

.product-thumb-swiper {
    flex: 1;
    overflow: hidden;
}

.product-thumb-swiper .swiper-wrapper {
    display: flex;
    align-items: center;
}

.product-thumb-swiper .swiper-slide {
    width: 80px !important;
    height: 80px;
    flex-shrink: 0;
    cursor: pointer;
    border: 2px solid transparent;
    border-radius: 4px;
    overflow: hidden;
    transition: border-color 0.3s ease;
    background-color: #f5f5f5;
}

.product-thumb-swiper .swiper-slide:hover,
.product-thumb-swiper .swiper-slide-thumb-active {
    border-color: #ff6b6b;
}

.product-thumb-swiper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail__info {
    flex: 1;
}

.product-detail__name {
    font-size: 28px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 20px;
}

.product-detail__description {
    font-size: 14px;
    line-height: 1.8;
    color: #666666;
    margin-bottom: 30px;
}

.specs__title {
    font-size: 14px;
    font-weight: 600;
    color: #333333;
    margin-top: 20px;
    margin-bottom: 10px;
}

.product-detail__specs p {
    font-size: 13px;
    color: #666666;
    line-height: 1.6;
    margin-bottom: 5px;
}

/* Specs Table */
.product-detail__description .section__header {
    margin-bottom: 30px;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
}

.specs-table tr {
    border-bottom: 1px solid #e0e0e0;
}

.specs-table tr:last-child {
    border-bottom: none;
}

.specs-table__label {
    padding: 15px 20px;
    background-color: #f5f5f5;
    font-size: 13px;
    color: #666666;
    font-weight: 600;
    width: 20%;
}

.specs-table__value {
    padding: 15px 20px;
    font-size: 13px;
    color: #666666;
    width: 30%;
}

/* Editor Content Table - Product Specs */
.product-detail__description .content table {
    width: 100% !important;
    border-collapse: collapse !important;
    border: none !important;
    table-layout: auto !important;
    margin: 0 !important;
}

.product-detail__description .content table tbody,
.product-detail__description .content table tr,
.product-detail__description .content table td {
    border: none !important;
    background: transparent !important;
    padding: 0 !important;
    margin: 0 !important;
    height: auto !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    word-break: break-word !important;
}

/* Hide spacer columns from editor */
.product-detail__description .content table td.et3,
.product-detail__description .content table td.et5 {
    display: none !important;
}

/* Collapse empty/br-only value cells */
.product-detail__description .content table td.et6 br:only-child {
    display: none !important;
}

/* Spec label cells */
.product-detail__description .content table td.et4 {
    display: table-cell !important;
    padding: 16px 20px !important;
    background-color: #f8f8f8 !important;
    color: #333333 !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    border-bottom: 1px solid #e8e8e8 !important;
    vertical-align: middle !important;
    width: 22% !important;
}

/* Spec value cells */
.product-detail__description .content table td.et6 {
    display: table-cell !important;
    padding: 16px 20px !important;
    background-color: #ffffff !important;
    color: #555555 !important;
    font-size: 14px !important;
    border-bottom: 1px solid #e8e8e8 !important;
    vertical-align: middle !important;
    width: 28% !important;
    min-width: 80px !important;
}

/* Remove bottom border for last row */
.product-detail__description .content table tr:last-child td.et4,
.product-detail__description .content table tr:last-child td.et6 {
    border-bottom: none !important;
}

/* Override any inline width/height styles */
.product-detail__description .content table td[style] {
    width: auto !important;
    height: auto !important;
    min-width: auto !important;
}

/* Tablet responsive */
@media (max-width: 768px) {
    .product-detail__description .content table td.et4,
    .product-detail__description .content table td.et6 {
        padding: 12px 15px !important;
        font-size: 13px !important;
    }
}

/* Mobile responsive - stack to 2 columns per original row */
@media (max-width: 640px) {
    .product-detail__description .content table {
        display: block !important;
    }
    
    .product-detail__description .content table tbody {
        display: block !important;
    }
    
    .product-detail__description .content table tr {
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        width: 100% !important;
    }
    
    .product-detail__description .content table td.et4,
    .product-detail__description .content table td.et6 {
        width: 100% !important;
        padding: 12px 15px !important;
        font-size: 13px !important;
        border-bottom: 1px solid #e8e8e8 !important;
    }
    
    /* Keep border on all cells in mobile stacked view */
    .product-detail__description .content table tr:last-child td.et4,
    .product-detail__description .content table tr:last-child td.et6 {
        border-bottom: 1px solid #e8e8e8 !important;
    }
    
    .product-detail__description .content table tr:last-child td:nth-last-child(-n+2) {
        border-bottom: none !important;
    }
}

/* Inquiry Form */
.product-detail__inquiry {
    margin-top: 60px;
}

.product-detail__inquiry .section__header {
    margin-bottom: 20px;
}

.inquiry__note {
    font-size: 13px;
    color: #ff0000;
    margin-bottom: 30px;
}

.inquiry__form {
    max-width: 600px;
}

.inquiry__form .form__group {
    margin-bottom: 20px;
}

.inquiry__form label {
    display: block;
    font-size: 13px;
    color: #666666;
    margin-bottom: 8px;
}

.inquiry__form input,
.inquiry__form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.inquiry__form input:focus,
.inquiry__form textarea:focus {
    outline: none;
    border-color: #000000;
}

.btn--inquiry {
    background-color: #333333;
    color: #ffffff;
    padding: 12px 30px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn--inquiry:hover {
    background-color: #000000;
}

/* ============================================
   Project Detail Page
   ============================================ */
.section--project-detail {
    padding: 0 0 80px;
    background-color: #f5f5f5;
}

.breadcrumb--small {
    padding: 40px 0 15px 0;
    background-color: #f5f5f5;
    border-bottom: none;
}

.breadcrumb__path {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: #666666;
}

.breadcrumb__path a {
    color: #666666;
    transition: color 0.3s ease;
}

.breadcrumb__path a:hover {
    color: #c8102e;
}

.breadcrumb__path span {
    color: #999999;
}

.project-detail__content {
    /* max-width: 1000px; */
    margin: 0 auto;
    background-color: #ffffff;
    padding: 50px;
}

.project-detail__header {
    margin-bottom: 30px;
}

.project-detail__title {
    font-size: 32px;
    font-weight: 600;
    color: #333333;
    margin-bottom: 15px;
}

.project-detail__date {
    font-size: 13px;
    color: #999999;
    margin-bottom: 20px;
}

.project-detail__divider {
    width: 100%;
    height: 1px;
    background-color: #e0e0e0;
}

.project-detail__body {
    margin: 30px 0 40px;
}

.project-detail__body p {
    font-size: 15px;
    line-height: 2;
    color: #666666;
    margin-bottom: 15px;
}

.project-detail__image {
    width: 100%;
    text-align: center;
}

.project-detail__image img {
    max-width: 100%;
    height: auto;
}

/* ============================================
   Mobile Navigation Drawer
   ============================================ */
.header__menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
    gap: 5px;
}

.menu-toggle__bar {
    display: block;
    width: 24px;
    height: 2px;
    background-color: #000000;
    transition: all 0.3s ease;
}

.header__menu-toggle.active .menu-toggle__bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.header__menu-toggle.active .menu-toggle__bar:nth-child(2) {
    opacity: 0;
}

.header__menu-toggle.active .menu-toggle__bar:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Drawer */
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s linear 0.3s, opacity 0.3s ease;
}

.mobile-drawer.active {
    visibility: visible;
    opacity: 1;
    transition-delay: 0s;
}

.mobile-drawer__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.mobile-drawer__content {
    position: absolute;
    top: 0;
    right: 0;
    width: 80%;
    max-width: 320px;
    height: 100%;
    background-color: #ffffff;
    padding: 60px 20px 20px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.mobile-drawer.active .mobile-drawer__content {
    transform: translateX(0);
}

.mobile-drawer__close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    font-size: 24px;
    color: #000000;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-drawer__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.mobile-drawer__item {
    border-bottom: 1px solid #e0e0e0;
}

.mobile-drawer__link {
    display: block;
    padding: 15px 0;
    font-size: 16px;
    font-weight: 500;
    color: #333333;
    text-decoration: none;
    transition: color 0.3s;
}

.mobile-drawer__link:hover,
.mobile-drawer__link--active {
    color: #c8102e;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .production__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .rnd__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer__content {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    
    /* Page banner */
    .page-banner {
        height: 280px;
    }

    .page-banner h1 {
        font-size: 28px;
    }

    /* Product list layout */
    .product-list__layout {
        flex-direction: column;
    }
    
    .product-list__sidebar {
        flex: 0 0 auto !important;
        width: 100%;
        margin-bottom: 30px;
    }
    
    .sidebar__list {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .sidebar__item {
        flex: 1 1 auto;
        min-width: 200px;
        border-bottom: 1px solid #e0e0e0;
        border-right: 1px solid #e0e0e0;
    }
    
    .product-list__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Sidebar mobile toggle */
    .sidebar__header {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    
    .sidebar__toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        background-color: #333333;
        color: #ffffff;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        font-size: 16px;
    }
    
    .sidebar__content {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }
    
    .sidebar__content.active {
        max-height: 1000px;
    }
    
    /* Project detail */
    .project-detail__content {
        padding: 30px;
    }
    
    /* Brand story */
    .brand-story__about {
        flex-direction: column;
    }
    
    .about__swiper,
    .about__text {
        max-width: 100%;
    }
    
    /* Culture */
    .culture__team {
        flex-direction: column;
    }
    
    .culture__icons {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .culture__values,
    .sustainability__initiatives {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Sustainability */
    .sustainability__design {
        flex-direction: column;
    }
    
    .sustainability__gallery {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .sustainability__logos {
        gap: 8px;
    }

    .sustainability__logo-item a {
        padding: 5px 10px;
    }
    
    .sustainability__materials-content {
        flex-direction: column;
    }
    
    .sustainability__materials-images {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Contact */
    .contact-info__content,
    .contact-layout {
        flex-direction: column;
    }
    
    /* Stats */
    .why-choose__stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Product detail layout */
    .product-detail__layout {
        flex-direction: column;
    }
    
    .product-detail__top {
        flex-direction: column;
        gap: 30px;
    }
    
    .product-detail__gallery,
    .product-detail__info {
        flex: 0 0 auto;
        max-width: 100%;
        width: 100%;
    }
    
    .product-detail__main-image {
        max-width: 100%;
        height: auto;
        aspect-ratio: 1 / 1;
    }
    
    .product-detail__main-image .main-image-swiper {
        max-width: 100%;
    }
    
    .product-detail__sidebar {
        flex: 0 0 auto;
        width: 100%;
        margin-bottom: 30px;
    }
    
    /* Projects */
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    /* 手机端显示手机 Banner，隐藏 PC Banner */
    .hero--mobile {
        display: block;
    }
    .hero--desktop {
        display: none;
    }

    .header__container {
        flex-direction: row;
        height: 60px;
        padding: 0 20px;
        justify-content: space-between;
    }
    
    .header__logo {
        margin-bottom: 0;
    }
    
    .header__logo img {
        height: 30px;
    }
    
    .header__nav {
        display: none;
    }
    
    .header__menu-toggle {
        display: flex;
    }
    
    .nav__list {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .nav__link {
        font-size: 14px;
        padding: 8px 10px;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .section__title {
        font-size: 18px;
    }
    
    /* Hero banner */
    .hero-swiper {
        height: 40vh; /* 移动端使用视口高度的40% */
        min-height: 250px;
        max-height: 400px;
    }

    /* Page banner */
    .page-banner {
        height: 220px;
    }

    .page-banner h1 {
        font-size: 24px;
    }

    .page-banner p {
        font-size: 14px;
    }
    
    /* Product grids */
    .production__grid,
    .rnd__grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .product-list__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer__content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer__nav {
        grid-template-columns: 1fr;
    }
    
    /* Tabs */
    .tabs__nav {
        flex-direction: column;
        gap: 10px;
    }
    
    .tabs__btn {
        width: 100%;
    }
    
    /* Culture */
    .culture__icons {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .culture__values,
    .sustainability__initiatives {
        grid-template-columns: 1fr;
    }
    
    /* Sustainability */
    .sustainability__gallery {
        grid-template-columns: 1fr;
    }
    
    .sustainability__logos {
        gap: 8px;
    }
    
    .sustainability__materials-images {
        grid-template-columns: 1fr;
    }
    
    /* Contact */
    .message__form {
        grid-template-columns: 1fr;
    }
    
    /* Stats */
    .why-choose__stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    /* Projects */
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-page__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    /* Breadcrumb */
    .breadcrumb .container {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .breadcrumb__info {
        text-align: left;
        width: 100%;
    }
    
    .breadcrumb__path {
        flex-wrap: wrap;
    }
    
    /* Product feature */
    .product-feature__content {
        flex-direction: column;
        gap: 30px;
    }
    
    .product-feature__image {
        flex: 0 0 auto;
        width: 100%;
    }
    
    /* Product detail sidebar */
    .product-detail__layout .sidebar__title {
        font-size: 16px;
        margin-bottom: 15px;
    }
    
    .product-detail__layout .sidebar__item {
        padding: 10px 0;
        font-size: 13px;
    }
    
    /* Projects categories */
    .projects__categories {
        grid-template-columns: 1fr;
    }
    
    /* Contact form */
    .mailing__form .form__row {
        grid-template-columns: 1fr;
    }
    
    /* Classification */
    .classification__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Product detail */
    .product-detail__top {
        flex-direction: column;
    }
    
    .product-gallery,
    .product-detail__gallery,
    .product-detail__info {
        max-width: 100%;
    }
    
    /* Brand Story - About us */
    .logo__images {
        flex-direction: column;
        gap: 30px;
    }
    
    .logo__images img {
        height: 60px;
    }
    
    .about-swiper img {
        height: 280px;
    }
    
    .about__title {
        font-size: 24px;
    }
    
    .culture__heading,
    .sustainability__heading,
    .logo__title,
    .vision__title,
    .objectives__title {
        font-size: 24px;
    }
    
    .culture-swiper {
        height: 220px;
    }
    
    .culture-swiper .swiper-slide,
    .culture-swiper .swiper-slide img {
        height: 190px;
    }
    
    .brand-story__vision,
    .brand-story__objectives,
    .brand-story__logo {
        margin: 40px 0;
    }
    
    .about__description {
        font-size: 14px;
        line-height: 1.8;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 15px;
    }

    /* Page banner */
    .page-banner {
        height: 180px;
    }

    .page-banner h1 {
        font-size: 20px;
    }

    .section__divider {
        width: 100%;
    }
    
    /* Product list */
    .product-list__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .product-card__image {
        height: 180px;
    }
    
    .product-card__info {
        padding: 8px;
    }

    .product-card__title {
        font-size: 12px;
    }

    .product-card__spec {
        font-size: 11px;
    }
    
    .sidebar__item {
        min-width: 100%;
    }
    
    /* Culture */
    .culture__icons {
        grid-template-columns: 1fr;
    }
    
    /* Classification */
    .classification__grid {
        grid-template-columns: 1fr;
    }
    
    /* Sustainability */
    .sustainability__logo-item img {
        max-height: 44px;
    }
    
    /* Stats */
    .why-choose__stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .stat__icon {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }
    
    .stat__number {
        font-size: 20px;
    }
    
    /* Contact */
    .contact-info__list li {
        font-size: 13px;
    }
    
    /* Brand Story - About us */
    .about-swiper img {
        height: 200px;
    }
    
    .culture-swiper {
        height: 180px;
    }
    
    .culture-swiper .swiper-slide,
    .culture-swiper .swiper-slide img {
        height: 150px;
    }
    
    .about__title {
        font-size: 20px;
    }
    
    .culture__heading,
    .sustainability__heading,
    .logo__title,
    .vision__title,
    .objectives__title {
        font-size: 20px;
    }
    
    .tabs__btn {
        padding: 10px 20px;
        font-size: 13px;
    }
    
    .brand-story__vision,
    .brand-story__objectives,
    .brand-story__logo {
        margin: 30px 0;
    }
    
    .logo__images img {
        height: 50px;
    }
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
    text-align: center;
}

.mb-0 {
    margin-bottom: 0;
}

.mt-0 {
    margin-top: 0;
}