/* ==================== 全局样式 ==================== */
/* Switzer 字体 - 英文 */
@font-face {
    font-family: 'Switzer';
    src: url('https://cyno-website-static.oss-cn-shanghai.aliyuncs.com/fonts/Switzer-Regular.otf') format('opentype');
    font-weight: 400;
}
@font-face {
    font-family: 'Switzer';
    src: url('https://cyno-website-static.oss-cn-shanghai.aliyuncs.com/fonts/Switzer-Medium.otf') format('opentype');
    font-weight: 500;
}
@font-face {
    font-family: 'Switzer';
    src: url('https://cyno-website-static.oss-cn-shanghai.aliyuncs.com/fonts/Switzer-Bold.otf') format('opentype');
    font-weight: 700;
}

/* HarmonyOS Sans SC 字体 - 中文 */
@font-face {
    font-family: 'HarmonyOS Sans SC';
    src: url('https://cyno-website-static.oss-cn-shanghai.aliyuncs.com/fonts/HarmonyOS_SansSC_Regular.ttf') format('truetype');
    font-weight: 400;
}
@font-face {
    font-family: 'HarmonyOS Sans SC';
    src: url('https://cyno-website-static.oss-cn-shanghai.aliyuncs.com/fonts/HarmonyOS_SansSC_Medium.ttf') format('truetype');
    font-weight: 500;
}
@font-face {
    font-family: 'HarmonyOS Sans SC';
    src: url('https://cyno-website-static.oss-cn-shanghai.aliyuncs.com/fonts/HarmonyOS_SansSC_Bold.ttf') format('truetype');
    font-weight: 700;
}

/* CSS 变量定义字体 */
:root {
    /* 英文字体 */
    --font-heading-en: 'Switzer', sans-serif;
    --font-body-en: 'Switzer', sans-serif;
    /* 中文字体 */
    --font-heading-zh: 'HarmonyOS Sans SC', sans-serif;
    --font-body-zh: 'HarmonyOS Sans SC', sans-serif;
}

/* 默认英文环境 */
html, html[lang="en"] {
    --font-heading: var(--font-heading-en);
    --font-body: var(--font-body-en);
}

/* 中文环境 */
html[lang="zh-CN"], html[lang="zh"] {
    --font-heading: var(--font-heading-zh);
    --font-body: var(--font-body-zh);
}

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

body {
    font-family: var(--font-body);
    background: #FFFFFF;
    color: #16232B;
    line-height: 1.5;
}

.page-container {
    width: 100%;
    margin: 0 auto;
    background: #FFFFFF;
    overflow: visible;
}

/* ==================== 按钮样式 ==================== */
.btn-primary {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    padding: 8px 24px;
    width: 172px;
    height: 56px;
    background: #FF5C06;
    border-radius: 100px;
    border: none;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 16px;
    line-height: 1.4;
    letter-spacing: -0.02em;
    color: #FFFFFF;
    cursor: pointer;
    transition: opacity 0.3s;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-small {
    width: auto;
    height: auto;
    padding: 8px 24px;
    font-size: 13.7px;
    line-height: 1.02;
    letter-spacing: -0.02em;
}

.btn-secondary {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    padding: 8px 24px;
    width: 172px;
    height: 56px;
    background: #FFFFFF;
    border-radius: 100px;
    border: none;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 16px;
    line-height: 1.4;
    letter-spacing: -0.02em;
    color: #16232B;
    cursor: pointer;
}

.btn-green {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 32px;
    padding: 17px 16px;
    width: 176px;
    background: #99CF63;
    border-radius: 50px;
    border: 1px solid #16232B;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 16px;
    line-height: 1.4;
    letter-spacing: -0.02em;
    color: #16232B;
    cursor: pointer;
}

.btn-green-outline {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 32px;
    padding: 17px 16px;
    width: 176px;
    background: transparent;
    border-radius: 50px;
    border: 1px solid #FFFFFF;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 16px;
    line-height: 1.4;
    letter-spacing: -0.02em;
    color: #FFFFFF;
    cursor: pointer;
}

.btn-white {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 32px;
    padding: 17px 16px;
    width: 176px;
    background: #FFFFFF;
    border-radius: 50px;
    border: 1px solid #16232B;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 16px;
    line-height: 1.4;
    letter-spacing: -0.02em;
    color: #16232B;
    cursor: pointer;
}

/* ==================== Hero区域 ==================== */
.hero-section {
    position: relative;
    width: 100%;
    min-height: max(600px, 100vh);
    background: url('https://cyno-website-static.oss-cn-shanghai.aliyuncs.com/images/bg-2.svg') no-repeat center center;
    background-size: cover;
    display: flex;
    align-items: center;
    padding-left: clamp(20px, 4vw, 190px);
}

.header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 36px 0 36px;
    background: transparent;
    z-index: 10;
}

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

.logo img, .logo svg {
    width: 133px;
    height: 22px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-link {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 14px;
    line-height: 1.57;
    letter-spacing: -0.02em;
    color: #FFFFFF;
    text-decoration: none;
    transition: opacity 0.3s;
}

.nav-link:hover {
    opacity: 0.8;
}

.hero-content {
    position: relative;
    max-width: 650px;
    z-index: 1;
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 54px;
    line-height: 1.32;
    text-transform: uppercase;
    color: #FFFFFF;
    margin-bottom: 19px;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 24px;
    line-height: 1.32;
    color: #FFFFFF;
}

/* ==================== 产品展示区 ==================== */
.product-section {
    position: relative;
    /* Removed min-height: 100vh to fix vertical spacing issue on smaller screens */
    display: flex;
    align-items: center;
    justify-content: center;
    /* Use responsive padding */
    padding: clamp(30px, 4vw, 60px) clamp(20px, 4.6vw, 70px);
}

.product-card {
    position: relative;
    width: 100%;
    max-width: 1500px;
    height: auto;
    aspect-ratio: 1500 / 700;
    background: #FFFFFF;
    border: 1px solid #EDEDED;
    border-radius: 20px;
    box-shadow: 0px 10px 45px -15px rgba(0, 0, 0, 0.2);
    overflow: visible;
    margin: 0 auto;
}

.product-image-left {
    position: absolute;
    left: 0.1%;
    top: 0.1%;
    width: 46.7%;
    height: 91.4%;
    background: url('images/product-left.svg') no-repeat;
    background-size: contain;
    z-index: 2;
}

.product-image-right {
    position: absolute;
    right: 0;
    top: 0;
    width: 56.7%;
    height: 100%;
    background: url('https://cyno-website-static.oss-cn-shanghai.aliyuncs.com/images/p1.png') no-repeat center;
    background-size: cover;
    border-radius: 0 20px 20px 0;
    z-index: 3;
}

.product-info {
    position: absolute;
    left: 4%;
    top: 25.7%;
    display: flex;
    flex-direction: column;
    /* Removed gap, using margin on button instead for better control */
    width: 32%; /* Increased slightly from 30% to accommodate nowrap text */
    z-index: 3;
}

/* Specific responsive button for product info section */
.product-info .btn-primary {
    width: clamp(120px, 11.5vw, 172px);
    height: clamp(40px, 3.7vw, 56px);
    font-size: clamp(12px, 1.06vw, 16px);
    padding: 0; /* Let flexbox center content */
    margin-top: clamp(20px, 3vw, 40px); /* Responsive margin for spacing */
}

.product-text {
    display: flex;
    flex-direction: column;
    gap: 1.7%;
}

.section-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(16px, 2.6vw, 48px); /* Reduced scaling factor to prevent wrap */
    line-height: 1.32;
    text-transform: capitalize;
    color: #16232B;
    white-space: nowrap; /* Prevent line wrapping */
}

.section-desc {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(12px, 1.06vw, 16px);
    line-height: 1.32;
    color: #4A545A;
}

.carousel-dots {
    position: absolute;
    right: 30px;
    bottom: 30px;
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 5;
}

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

.dot:hover {
    background: rgba(255, 255, 255, 0.8);
}

.dot.active {
    width: 32px;
    height: 12px;
    background: #FFFFFF;
    border-radius: 6px;
}

/* ==================== Movement is Magic ==================== */
.movement-section {
    position: relative;
    width: 100%;
    height: 480px;
    margin-top: 100px;
    background: url('https://cyno-website-static.oss-cn-shanghai.aliyuncs.com/images/movement-bg.svg') no-repeat center center;
    background-size: cover;
}

.movement-content {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 57px;
    width: 640px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.movement-logo {
    width: 444px;
    height: 107px;
    background: url('images/movement-logo-30d48f.png') no-repeat center;
    background-size: contain;
}

.movement-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 48px;
    line-height: 1.32;
    text-transform: capitalize;
    text-align: center;
    color: #FFFFFF;
}

.movement-text-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
    width: 100%;
}

.movement-desc {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 16px;
    line-height: 1.32;
    text-align: center;
    color: #FFFFFF;
}

/* ==================== 特色背景区域 ==================== */
/* ==================== Scrolly Video 修复样式 ==================== */

/* 1. 外层容器：决定滚动的“长度”/时长 */
.scrolly-wrapper {
    position: relative;
    /* 关键点：高度决定视频播放多久。300vh 意味着用户要滚过3个屏幕的高度视频才会播完 */
    height: 350vh; 
    width: 100%;
    background-color: #000; /* 防止视频加载前出现白边 */
    z-index: 10; /* 确保层级正确，不会被上下遮挡 */
    overflow: visible; /* 必须可见，否则 sticky 失效 */
}

/* 2. 视频容器：负责“吸附”在窗口上 */
#scrolly-video {
    position: -webkit-sticky; /* Safari 兼容 */
    position: sticky;         /* 核心：使用原生 CSS 粘性定位 */
    top: 0;                   /* 吸顶 */
    width: 100%;
    height: 100vh;           /* 强制占满视口高度 */
    overflow: hidden;
}

/* 3. 强制修正库生成的 canvas/video 样式，确保填满容器 */
#scrolly-video canvas,
#scrolly-video video {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important; /* 保持比例填充，类似 background-size: cover */
    display: block;
}

/* 移动端适配：如果需要调整滚动长度 */
@media screen and (max-width: 768px) {
    .scrolly-wrapper {
        height: 250vh; /* 手机端可以稍微短一点 */
    }
}

/* ==================== 优惠区域 ====================  */
.offer-section {
    position: relative;
    margin-top: 30px;
    padding: 0 70px;
}

.offer-wrapper {
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
}

.offer-main-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 48px;
    line-height: 1.32;
    text-align: center;
    color: #16232B;
    margin-bottom: 60px;
}

.offer-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.offer-card {
    background: #F8F9FA;
    border-radius: 20px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.offer-card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 8px;
}

.offer-icon-1 {
    background: url('images/icon-shock.svg?v=3') no-repeat center;
    background-size: contain;
}

.offer-icon-2 {
    background: url('images/icon-safety.svg?v=3') no-repeat center;
    background-size: contain;
}

.offer-icon-3 {
    background: url('images/icon-hygiene.svg?v=3') no-repeat center;
    background-size: contain;
}

.offer-icon-4 {
    background: url('images/icon-brake.svg?v=3') no-repeat center;
    background-size: contain;
}



.offer-card-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 24px;
    line-height: 1.32;
    color: #16232B;
}

.offer-card-subtitle {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 14px;
    line-height: 1.4;
    color: #075056;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.offer-card-highlight {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 16px;
    line-height: 1.5;
    color: #075056;
    padding: 8px 0;
    border-top: 1px solid rgba(7, 80, 86, 0.15);
    border-bottom: 1px solid rgba(7, 80, 86, 0.15);
}

.offer-card-desc {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 15px;
    line-height: 1.7;
    color: #4A545A;
}

/* ==================== 服务区域 ==================== */
.service-section {
    position: relative;
    margin-top: clamp(60px, 8vw, 120px);
    padding: 0 clamp(20px, 4.6vw, 70px);
}

.service-header {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(24px, 2.4vw, 32px);
    line-height: 1.32;
    text-transform: uppercase;
    color: #16232B;
    margin-bottom: clamp(20px, 3vw, 40px);
    max-width: 1300px;
    margin-left: auto;
    margin-right: auto;
}

.service-main-card {
    position: relative;
    width: 100%;
    max-width: 1300px;
    height: auto;
    aspect-ratio: 1300 / 1186;
    margin: 0 auto;
}

.service-top-bg {
    position: absolute;
    top: 11.8%;
    left: 0;
    width: 100%;
    max-width: 1299px;
    height: 30.6%;
    background: linear-gradient(134deg, rgba(7, 80, 86, 1) 0%, rgba(90, 138, 142, 1) 100%);
    border-radius: 20px;
}

.service-pattern {
    position: absolute;
    right: 0;
    top: 0.3%;
    width: 34.5%;
    height: 83.2%;
    background: url('images/service-pattern.svg') no-repeat;
    background-size: contain;
    opacity: 0.1;
}

.service-offer-text {
    position: absolute;
    left: 3.5%;
    top: 25.6%;
    width: 60%; /* Increased from 44.3% to prevent title wrapping */
}

.service-offer-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(16px, 2.2vw, 32px); /* Slightly reduced scaling factor */
    line-height: 1.32;
    text-transform: uppercase;
    color: #FFFFFF;
    margin-bottom: clamp(10px, 1.8vw, 22px);
}

.service-offer-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: clamp(6px, 1vw, 12px);
}

.service-offer-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(12px, 1.2vw, 16px);
    line-height: 1.32;
    color: #FFFFFF;
}

.dot-white {
    width: clamp(4px, 0.46vw, 6px);
    height: clamp(4px, 0.46vw, 6px);
    background: #FFFFFF;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Moved .service-trial-text to be inside .service-left-card in the DOM structure */
/* Old .service-trial-text CSS block removed from here */

.service-product-image {
    position: absolute;
    right: 0;
    top: 0;
    width: 38.1%;
    height: 42.4%;
    background: url('images/product-walker.png') no-repeat center;
    background-size: contain;
}

.service-right-cards {
    position: absolute;
    right: 0;
    top: 44.1%;
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 48.4%;
    height: 55.9%;
}

.service-card-exclusive {
    width: 100%;
    height: 54%;
    display: flex;
    align-items: stretch;
    gap: 0;
    background: #FFFFFF;
    border: 1px solid #E3E3E3;
    border-radius: 20px;
    overflow: hidden;
}

.exclusive-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: clamp(10px, 1.5vw, 20px);
    padding: clamp(16px, 2.4vw, 32px);
}

.exclusive-image {
    width: 44.4%;
    height: 100%;
    background: url('images/service-exclusive-bg-379b5e.png') no-repeat center;
    background-size: cover;
    flex-shrink: 0;
}

.exclusive-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(16px, 2.4vw, 32px);
    line-height: 1.32;
    text-transform: uppercase;
    color: #075056;
    margin-bottom: clamp(10px, 1.5vw, 20px);
}

.exclusive-desc {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(12px, 1.2vw, 16px);
    line-height: 1.5;
    text-transform: uppercase;
    color: #769EA1;
}

.service-card-warranty {
    width: 100%;
    height: 43%; /* Adjust height to fit container */
    background: #C8D9D9;
    border-radius: 20px;
    padding: clamp(16px, 2.5vw, 33px) clamp(16px, 2.4vw, 32px);
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: clamp(10px, 1.5vw, 20px);
}

.warranty-months {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    font-size: clamp(32px, 5vw, 80px); /* Reduced scaling from 7.6vw to 5vw and min/max values */
    line-height: 1;
    text-transform: uppercase;
    background: linear-gradient(180deg, rgba(7, 80, 86, 1) 4%, rgba(118, 158, 161, 1) 79%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.warranty-desc {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: clamp(12px, 1.2vw, 16px);
    line-height: 1.4;
    text-transform: uppercase;
    text-align: center;
    color: #075056;
}

/* 左侧服务卡片区域 */
.service-left-card {
    position: absolute;
    left: 0;
    top: 44.1%;
    width: 50%;
    height: 55.9%;
    background: url('images/service-card.svg') no-repeat center, #91B1B4;
    background-size: cover;
    border-radius: 20px;
    /* Added flex display to center the trial text */
    display: flex;
    justify-content: center;
    align-items: flex-start; /* Align text to top */
    padding: clamp(20px, 4vw, 60px);
    padding-top: clamp(30px, 5vw, 60px); /* Add specific top padding */
}

.service-trial-text {
    /* Changed from absolute to relative/static */
    position: relative;
    width: 100%;
    max-width: 546px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(16px, 2.4vw, 32px);
    line-height: 1.32;
    text-transform: uppercase;
    text-align: center;
    color: #FFFFFF;
    /* Reset left/top as it's now inside flex container */
    left: auto;
    top: auto;
    z-index: 2; /* Ensure text is above background image */
}

/* ==================== 技术规格区域 ==================== */
.specs-section {
    position: relative;
    margin-top: 160px;
    padding: 80px 16px;
    background: #E5E7E7;
}

.specs-wrapper {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
}

.specs-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 48px;
    line-height: 1.32;
    text-transform: capitalize;
    text-align: center;
    color: #16232B;
    margin-bottom: 25px;
}

.specs-subtitle {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 24px;
    line-height: 1.32;
    text-transform: capitalize;
    text-align: left;
    color: #16232B;
    margin-bottom: 20px;
}

.specs-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.specs-left {
    display: flex;
    flex-direction: column;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(3, 180px);
    gap: 24px 32px;
}

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

.spec-item.large {
    grid-column: span 2;
}

.spec-value {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 18px;
    line-height: 1.32;
    text-transform: capitalize;
    color: #075056;
}

.spec-label {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 16px;
    line-height: 1.32;
    color: #4A545A;
}

.specs-image {
    width: 383px;
    height: 388px;
    background: url('images/product-walker.png') no-repeat center;
    background-size: contain;
    position: relative;
    z-index: 5;
}

.specs-btn {
    margin-top: 24px;
}

.specs-note {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 14px;
    line-height: 1.32;
    text-align: center;
    color: #999999;
}

/* ==================== FAQ区域 ==================== */
.faq-section {
    position: relative;
    background: #E5E7E7;
    padding: 16px;
}

.faq-icons {
    position: absolute;
    right: 50px;
    bottom: 0;
    width: 534px;
    height: 420px;
    background: url('images/faq-icons.svg') no-repeat center;
    background-size: contain;
    z-index: 1;
    pointer-events: none;
}

.faq-container {
    width: 100%;
    max-width: 1404px;
    background: #FFFFFF;
    border-radius: 28px;
    padding: 66px 80px;
    margin: 0 auto;
}

.faq-content {
    display: flex;
    gap: 90px;
}

.faq-left {
    display: flex;
    flex-direction: column;
    gap: 48px;
    width: 531px;
}

.faq-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 48px;
    line-height: 1.3;
    letter-spacing: -0.03em;
    color: #16232B;
}

.faq-desc {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 16px;
    line-height: 1.8;
    color: #7E8588;
}

.faq-right {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.faq-item {
    border-bottom: 1px solid #16232B;
}

.faq-item:first-child {
    border-top: 1px solid #16232B;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 26px 24px;
    cursor: pointer;
}

.faq-question span {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 24px;
    line-height: 1.5;
    letter-spacing: -0.03em;
    color: #16232B;
}

.faq-icon {
    width: 24px;
    height: 24px;
}

.faq-icon.minus {
    display: none;
}

.faq-icon.plus {
    display: block;
}

.faq-item.expanded .faq-icon.minus {
    display: block;
}

.faq-item.expanded .faq-icon.plus {
    display: none;
}

.faq-answer {
    padding: 0 24px 26px;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 16px;
    line-height: 1.8;
    color: #7E8588;
    display: none;
}

.faq-item.expanded .faq-answer {
    display: block;
}

/* ==================== 页脚 ==================== */
.footer {
    position: relative;
    width: 100%;
    background: url('images/footer-bg.png') no-repeat center center;
    background-size: cover;
    background-color: #16232B;
}

.footer-content {
    padding: 48px 107px 0;
}

.footer-top {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
}

.footer-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.footer-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 32px;
    line-height: 1.3;
    letter-spacing: -0.03em;
    text-align: center;
    color: #FFFFFF;
}

.footer-desc {
    width: 592px;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 13.7px;
    line-height: 1.46;
    letter-spacing: -0.02em;
    text-align: center;
    color: rgba(255, 255, 255, 0.85);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 24px;
    width: 100%;
    max-width: 1300px;
    margin-left: auto;
    margin-right: auto;
}

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

.footer-col-title {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 11.6px;
    line-height: 2.07;
    color: #FFFFFF;
}

.footer-link-row {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
}

.footer-link-row a {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 11.4px;
    line-height: 2.1;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
}

.footer-link-row a:hover {
    color: #FFFFFF;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding: 16px 0;
    margin-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
    max-width: 1300px;
    margin-left: auto;
    margin-right: auto;
}

.footer-legal {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer-legal span {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 11.4px;
    line-height: 1.4;
    color: rgba(255, 255, 255, 0.65);
}

.footer-legal span:first-child {
    color: rgba(255, 255, 255, 0.65);
}

.footer-legal a {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 11.4px;
    line-height: 1.4;
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-legal a:hover {
    color: rgba(255, 255, 255, 0.9);
}

.beian-icon {
    width: 14px;
    height: 14px;
    vertical-align: middle;
}

.footer-locale {
    display: flex;
    align-items: center;
    gap: 16px;
}

.locale-icon {
    width: 16px;
    height: 16px;
    background: url('images/locale-icon.png') no-repeat center;
    background-size: contain;
}

.footer-locale span {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 12px;
    line-height: 1.2;
    color: rgba(255, 255, 255, 0.85);
}

/* ==================== 响应式隐藏滚动条 ==================== */
body::-webkit-scrollbar {
    width: 8px;
}

body::-webkit-scrollbar-track {
    background: #f1f1f1;
}

body::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

body::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* ==================== 响应式布局 - 平板端 ==================== */
@media screen and (max-width: 1024px) {
    /* 导航 */
    .nav-links {
        display: none;
    }
    
    .header {
        padding: 0 20px;
    }
    
    /* Hero区域 */
    .hero-section {
        height: 500px;
        padding-left: 20px;
    }
    
    .hero-content {
        left: auto;
        top: auto;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    /* 产品展示区 */
    .product-section {
        padding: 30px 20px 60px;
    }
    
    /* Removed product-card overrides to allow fluid scaling from base styles */
    /*
    .product-card {
        width: 100%;
        height: auto;
        min-height: 450px;
    }
    
    .product-image-left {
        width: 50%;
        height: 400px;
    }
    
    .product-image-right {
        width: 55%;
        height: 450px;
    }
    
    .product-info {
        left: 30px;
        top: 100px;
        width: 45%;
    }
    
    .section-title {
        font-size: 36px;
    }
    */
    
    /* Movement区域 */
    .movement-section {
        height: 400px;
        margin-top: 60px;
    }
    
    .movement-content {
        left: 50%;
        transform: translateX(-50%);
        width: 90%;
        top: 40px;
    }
    
    .movement-logo {
        width: 300px;
        height: 80px;
    }
    
    .movement-title {
        font-size: 36px;
    }
    
    /* 特色背景区域 */
    .feature-bg-section {
        height: 500px;
    }
    
    /* 优惠区域 */
    .offer-section {
        padding: 0 20px;
        margin-top: 60px;
    }
    
    .offer-content {
        flex-direction: column;
        width: 100%;
        gap: 40px;
    }
    
    .offer-text {
        width: 100%;
    }
    
    .offer-image {
        width: 100%;
        height: 400px;
    }
    
    /* 服务区域 */
    .service-section {
        padding: 0 20px;
        margin-top: 60px;
    }
    
    .service-main-card {
        width: 100%;
        height: auto !important;
        display: flex;
        flex-direction: column;
        position: static;
    }
    
    .service-top-bg {
        width: 100%;
        position: static !important;
        height: auto !important;
        padding: 40px 30px;
        margin-bottom: 20px;
    }
    
    .service-offer-text {
        position: static !important;
        width: 100%;
    }
    
    .service-trial-text {
        position: static !important;
        width: 100%;
        margin-top: 30px;
        font-size: 24px;
    }
    
    .service-product-image {
        position: static !important;
        width: 100%;
        height: 350px;
        margin-bottom: 20px;
    }
    
    .service-right-cards {
        position: static !important;
        width: 100%;
        margin-bottom: 20px;
    }
    
    .service-card-exclusive,
    .service-card-warranty {
        width: 100%;
    }
    
    .service-left-card {
        display: none;
    }
    
    /* 技术规格区域 */
    .specs-section {
        padding: 40px 16px;
        margin-top: 60px;
    }
    
    .specs-title {
        font-size: 36px;
    }
    
    .specs-container {
        flex-direction: column;
        align-items: center;
    }
    
    .specs-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .spec-item.large {
        grid-column: span 2;
    }
    
    .specs-image {
        margin-top: 30px;
    }
    
    /* FAQ区域 */
    .faq-container {
        width: 100%;
        padding: 40px 30px;
    }
    
    .faq-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .faq-left {
        width: 100%;
    }
    
    .faq-title {
        font-size: 36px;
    }
    
    .faq-icons {
        display: none;
    }
    
    /* 页脚 */
    .footer-content {
        padding: 40px 20px;
    }
    
    .footer-top {
        width: 100%;
        margin-left: 0;
    }
    
    .footer-desc {
        width: 100%;
    }
    
    .footer-links {
        width: 100%;
    }
    
    .footer-bottom {
        width: 100%;
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }
}

/* ==================== 响应式布局 - 手机端 ==================== */
@media screen and (max-width: 768px) {
    /* Hero区域 */
    .hero-section {
        height: 400px;
        padding-left: 20px;
        padding-right: 20px;
    }
    
    .hero-content {
        left: auto;
        top: auto;
        right: auto;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    /* 产品展示区 */
    .product-section {
        padding: 20px 15px 40px;
    }
    
    .product-card {
        min-height: 500px;
        height: auto;
        aspect-ratio: auto;
        display: flex;
        flex-direction: column;
    }
    
    .product-image-left {
        display: none;
    }
    
    .product-image-right {
        position: relative;
        width: 100%;
        height: 250px;
        border-radius: 20px 20px 0 0;
    }
    
    .product-info {
        position: relative;
        left: auto;
        top: auto;
        width: 100%;
        padding: 20px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-desc {
        font-size: 14px;
    }
    
    .carousel-dots {
        bottom: 15px;
        right: 15px;
    }
    
    /* Movement区域 */
    .movement-section {
        height: 350px;
        margin-top: 40px;
    }
    
    .movement-content {
        top: 30px;
        padding: 0 15px;
    }
    
    .movement-logo {
        width: 200px;
        height: 50px;
    }
    
    .movement-title {
        font-size: 24px;
    }
    
    .movement-desc {
        font-size: 14px;
    }
    
    /* 特色背景区域 */
    .feature-bg-section {
        height: 300px;
    }
    
    /* 优惠区域 */
    .offer-section {
        padding: 0 15px;
        margin-top: 40px;
    }

    .offer-cards {
        grid-template-columns: 1fr;
    }

    .offer-image {
        height: 300px;
    }
    
    .offer-details {
        font-size: 14px;
    }
    
    /* 服务区域 */
    .service-section {
        padding: 0 15px;
        margin-top: 40px;
    }
    
    .service-header {
        font-size: 24px;
    }
    
    .service-top-bg {
        height: auto;
        padding: 30px 20px;
    }
    
    .service-offer-text {
        position: relative;
        left: auto;
        top: auto;
        width: 100%;
    }
    
    .service-offer-title {
        font-size: 20px;
    }
    
    .service-trial-text {
        position: relative;
        left: auto;
        top: auto;
        width: 100%;
        margin-top: 20px;
        font-size: 18px;
    }
    
    .service-card-exclusive {
        height: auto;
        flex-direction: column;
    }
    
    .exclusive-image {
        width: 100%;
        height: 200px;
    }
    
    .exclusive-title {
        font-size: 24px;
    }
    
    .service-card-warranty {
        height: auto;
        padding: 30px 20px;
    }
    
    .warranty-months {
        font-size: 60px;
    }
    
    .service-left-card {
        display: none;
    }
    
    /* 技术规格区域 */
    .specs-section {
        padding: 30px 16px;
        margin-top: 40px;
    }
    
    .specs-title {
        font-size: 28px;
    }
    
    .specs-subtitle {
        font-size: 18px;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .spec-item.large {
        grid-column: span 1;
    }
    
    .specs-image {
        width: 100%;
        height: 250px;
    }
    
    /* FAQ区域 */
    .faq-section {
        padding: 10px;
    }
    
    .faq-container {
        padding: 30px 20px;
    }
    
    .faq-title {
        font-size: 28px;
    }
    
    .faq-question span {
        font-size: 18px;
    }
    
    /* 页脚 */
    .footer-content {
        padding: 30px 15px;
    }
    
    .footer-title {
        font-size: 24px;
    }
    
    .footer-link-row {
        flex-direction: column;
        gap: 10px;
    }
    
    .footer-legal {
        flex-direction: column;
        gap: 8px;
    }
    
    /* 按钮 */
    .btn-primary,
    .btn-secondary,
    .btn-green,
    .btn-green-outline {
        width: 100%;
        max-width: 280px;
    }
}