/* ============================================
   CYRIL MACHINERY - Premium Styles v3.0
   西里尔机械 - 企业官网样式表
   
   目录:
   1. CSS Variables (CSS变量)
   2. Reset & Base (重置与基础)
   3. Preloader (加载动画)
   4. Layout (布局)
   5. Typography (排版)
   6. Buttons (按钮)
   7. Header (头部导航)
   8. Hero Section (首屏)
   9. Cards (卡片组件)
   10. Categories (产品分类)
   11. Featured Products (精选产品)
   12. Custom Section (定制服务)
   13. About Section (关于我们)
   14. Certificates (资质证书)
   15. Cases (客户案例)
   16. Why Us (优势)
   17. News (新闻)
   18. CTA (行动号召)
   19. Contact (联系)
   20. Footer (页脚)
   21. Floating Buttons (悬浮按钮)
   22. Modal (弹窗)
   23. Marquee (滚动轮播)
   24. Sub Pages (子页面)
   25. Animations (动画)
   26. Responsive (响应式)
   ============================================ */


/* ============================================
   1. CSS Variables - 全局CSS变量定义
   ============================================ */

:root {
    /* ---- 主色调 - 品牌蓝色系 ---- */
    --primary: #2563eb;           /* 主色 */
    --primary-dark: #1d4ed8;      /* 深色主色 */
    --primary-light: #60a5fa;     /* 浅色主色 */
    --primary-50: #eff6ff;        /* 极浅主色背景 */
    --primary-100: #dbeafe;       /* 浅主色背景 */
    --primary-200: #bfdbfe;       /* 更浅主色背景 */
    
    /* ---- 强调色 - 温暖橙金色 ---- */
    --accent: #f59e0b;            /* 强调色 */
    --accent-dark: #d97706;       /* 深强调色 */
    --accent-light: #fbbf24;      /* 浅强调色 */
    --accent-50: #fffbeb;         /* 极浅强调色背景 */
    
    /* ---- 渐变色 ---- */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);  /* 主渐变 */
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);   /* 强调渐变 */
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);     /* 深色渐变 */
    --gradient-hero: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.9) 100%);
    --gradient-card: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.05) 100%);
    
    /* ---- 中性色 - 灰色阶 ---- */
    --white: #ffffff;
    --gray-50: #f0f4f8;           /* 最浅灰 - 区段背景 */
    --gray-100: #e4eaf2;          /* 浅灰 - 卡片/输入背景 */
    --gray-200: #d0d9e3;          /* 边框灰 */
    --gray-300: #bfcad6;          /* 禁用灰 */
    --gray-400: #8895a7;          /* 占位符灰 */
    --gray-500: #5a6778;          /* 次要文字 */
    --gray-600: #3e4a5a;          /* 正文文字 */
    --gray-700: #2c3747;          /* 标题文字 */
    --gray-800: #1a2635;          /* 深色文字 */
    --gray-900: #0d1421;          /* 最深色 */
    
    /* ---- 字体 ---- */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* ---- 间距 ---- */
    --section-padding: 80px 0;              /* 桌面端section内边距 */
    --section-padding-mobile: 50px 0;       /* 移动端section内边距 */
    --container-max: 1400px;                /* 最大宽度 */
    
    /* ---- 圆角 ---- */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;
    
    /* ---- 阴影 ---- */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 24px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.16);
    --shadow-2xl: 0 25px 50px rgba(0,0,0,0.2);
    --shadow-inner: inset 0 2px 4px rgba(0,0,0,0.06);
    --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.3);           /* 蓝色光晕 */
    --shadow-glow-accent: 0 0 30px rgba(245, 158, 11, 0.3);   /* 橙色光晕 */
    
    /* ---- 过渡动画 ---- */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}


/* ============================================
   2. Reset & Base - 重置与基础样式
   ============================================ */

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

html {
    scroll-behavior: smooth;        /* 平滑滚动 */
    font-size: 16px;
    scroll-padding-top: 80px;       /* 锚点定位偏移 */
}

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.7;
    color: var(--gray-600);
    background-color: #f7f8fa;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
    list-style: none;
}

/* 选中文本样式 */
::selection {
    background: var(--primary);
    color: var(--white);
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}


/* ============================================
   3. Preloader - 页面加载动画
   ============================================ */

#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-dark);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 60px;
    height: 60px;
    position: relative;
}

.loader-inner {
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top-color: var(--primary-light);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader-inner::before {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    right: 5px;
    bottom: 5px;
    border: 3px solid transparent;
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite reverse;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}


/* ============================================
   4. Layout - 布局容器
   ============================================ */

/* 通用容器 */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

/* 通用Section */
.section {
    padding: var(--section-padding);
    position: relative;
}

/* 白色区段 - 与灰色背景形成对比 */
.featured,
.cases {
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
}

/* Section头部 */
.section__header {
    text-align: center;
    margin-bottom: 40px;
}

/* Section副标题 */
.section__subtitle {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--primary);
    margin-bottom: 16px;
    position: relative;
}

.section__subtitle::before,
.section__subtitle::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 30px;
    height: 2px;
    background: var(--primary);
    opacity: 0.5;
}

.section__subtitle::before {
    left: -40px;
}

.section__subtitle::after {
    right: -40px;
}

/* Section标题 */
.section__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.2;
    margin-bottom: 16px;
}

/* 渐变文字 */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Section描述 */
.section__desc {
    font-size: 1.125rem;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}


/* ============================================
   5. Typography - 排版 (已在上方定义)
   ============================================ */


/* ============================================
   6. Buttons - 按钮组件
   ============================================ */

/* 基础按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 28px;
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    letter-spacing: 0.3px;
}

/* 按钮光泽效果 */
.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

/* 按钮图标 */
.btn i {
    transition: transform var(--transition-base);
}

.btn:hover i {
    transform: translateX(4px);
}

/* 主要按钮 */
.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.45);
}

/* 轮廓按钮 */
.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(4px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

/* 白色按钮 */
.btn-white {
    background: var(--white);
    color: var(--primary);
    box-shadow: var(--shadow-md);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* 白色轮廓按钮 */
.btn-outline-white {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--white);
    transform: translateY(-2px);
}

/* 大号按钮 */
.btn-lg {
    padding: 16px 36px;
    font-size: 1rem;
}


/* ============================================
   7. Header - 头部导航
   ============================================ */

/* 头部容器 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-base);
}

/* 滚动状态 */
.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

/* 头部容器布局 */
.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

/* Logo */
.header__logo {
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 1001;
}

.header__logo-img {
    height: 50px;
    width: auto;
    transition: height var(--transition-base);
}

.header.scrolled .header__logo-img {
    height: 40px;
}

/* Logo图标 */
.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

/* Logo文字 */
.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 2px;
}

.header.scrolled .logo-text {
    color: var(--gray-900);
}

/* 导航菜单 */
.header__nav {
    display: none;
}

@media (min-width: 1024px) {
    .header__nav {
        display: flex;
        justify-content: center;
        flex: 1;
    }
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 2px;
}

.nav__item {
    flex-shrink: 0;
}

.nav__link {
    padding: 6px 14px;
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    position: relative;
    white-space: nowrap;
}

.header.scrolled .nav__link {
    color: var(--gray-600);
}

.nav__link:hover,
.nav__link.active {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

.header.scrolled .nav__link:hover,
.header.scrolled .nav__link.active {
    color: var(--primary);
    background: var(--primary-50);
}

/* 头部操作区 */
.header__actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* 语言下拉菜单 */
.lang-dropdown {
    position: relative;
    display: none;
}

@media (min-width: 768px) {
    .lang-dropdown {
        display: block;
    }
}

.lang-dropdown__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 12px;
    min-width: 80px;
    font-family: var(--font-primary);
    font-size: 0.8125rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
}

.lang-dropdown__toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lang-dropdown__toggle i.fa-globe {
    font-size: 1rem;
}

.lang-dropdown__toggle i.fa-chevron-down {
    font-size: 0.75rem;
    transition: transform var(--transition-base);
}

.lang-dropdown.active .lang-dropdown__toggle i.fa-chevron-down {
    transform: rotate(180deg);
}

.lang-dropdown__menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 150px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-100);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: 1000;
    overflow: hidden;
}

.lang-dropdown.active .lang-dropdown__menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown__menu li {
    border-bottom: 1px solid var(--gray-100);
}

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

.lang-dropdown__menu a {
    display: block;
    padding: 12px 16px;
    font-size: 0.875rem;
    color: var(--gray-700);
    transition: all var(--transition-base);
}

.lang-dropdown__menu a:hover {
    background: var(--primary-50);
    color: var(--primary);
}

.lang-dropdown__menu li.active a {
    color: var(--primary);
    font-weight: 600;
    background: var(--primary-50);
}

/* 滚动状态语言菜单 */
.header.scrolled .lang-dropdown__toggle {
    color: var(--gray-700);
    background: var(--gray-100);
    border-color: var(--gray-200);
}

.header.scrolled .lang-dropdown__toggle:hover {
    background: var(--gray-200);
}

/* 头部按钮 */
.header .btn-primary {
    display: none;
    padding: 9px 20px;
    font-size: 0.85rem;
    white-space: nowrap;
    flex-shrink: 0;
}

@media (min-width: 1024px) {
    .header .btn-primary {
        display: inline-flex;
    }
}

/* 搜索按钮 */
.search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    transition: all var(--transition-base);
    border-radius: 50%;
    flex-shrink: 0;
}

.search-toggle:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

.header.scrolled .search-toggle {
    color: var(--gray-600);
}

.header.scrolled .search-toggle:hover {
    color: var(--primary);
    background: var(--primary-50);
}

/* 搜索弹窗 */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(10px);
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-overlay__content {
    width: 90%;
    max-width: 600px;
    position: relative;
}

.search-overlay__close {
    position: absolute;
    top: -60px;
    right: 0;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-base);
}

.search-overlay__close:hover {
    color: var(--white);
}

.search-overlay__form {
    display: flex;
    align-items: center;
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
    transition: border-color var(--transition-base);
}

.search-overlay__form:focus-within {
    border-color: var(--primary-light);
}

.search-overlay__input {
    flex: 1;
    padding: 20px 0;
    background: none;
    border: none;
    font-family: var(--font-primary);
    font-size: 1.5rem;
    color: var(--white);
    outline: none;
}

.search-overlay__input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.search-overlay__submit {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 20px;
    transition: color var(--transition-base);
}

.search-overlay__submit:hover {
    color: var(--primary-light);
}

@media (max-width: 768px) {
    .search-overlay__input {
        font-size: 1.125rem;
        padding: 16px 0;
    }
    .search-overlay__submit {
        font-size: 1.25rem;
        padding: 16px;
    }
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

@media (min-width: 1024px) {
    .menu-toggle {
        display: none;
    }
}

.menu-toggle span {
    width: 28px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.header.scrolled .menu-toggle span {
    background: var(--gray-900);
}

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

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

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


/* ============================================
   8. Hero Section - 首屏区域
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: #0f172a;
}

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

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2;
}

.hero__content {
    position: relative;
    z-index: 3;
    padding: 100px 20px 60px;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 24px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--white);
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero__title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 24px;
}

.title-line {
    display: block;
}

.hero__description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero__buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 60px;
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 600px;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-number::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--accent);
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.hero__scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 4;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8125rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
    animation: scrollLine 2s infinite;
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    50.1% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}


/* ============================================
   9. Cards - 通用卡片组件
   ============================================ */

.category-card,
.product-card,
.case-card,
.news-card,
.advantage-card,
.certificate-card,
.news-list-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1.2);
    cursor: pointer;
    display: block;
    text-decoration: none;
    color: inherit;
    position: relative;
}

/* 卡片顶部渐变线 */
.category-card::before,
.product-card::before,
.case-card::before,
.news-card::before,
.news-list-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
    z-index: 2;
}

.category-card:hover::before,
.product-card:hover::before,
.case-card:hover::before,
.news-card:hover::before,
.news-list-item:hover::before {
    transform: scaleX(1);
}

/* 卡片悬停效果 - 统一增强 */
.category-card:hover,
.case-card:hover,
.advantage-card:hover,
.news-card:hover,
.certificate-card:hover,
.news-list-item:hover {
    transform: translateY(-12px);
    box-shadow: 0 24px 48px rgba(37, 99, 235, 0.1), 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--primary-200);
}

/* 产品卡片 - 同上（单独列出避免冲突） */
.product-card {
    box-shadow: var(--shadow-lg);
    border-color: var(--gray-200);
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1.2);
}

.product-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 24px 48px rgba(37, 99, 235, 0.1), 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--primary-200);
}

/* 卡片图片容器 */
.category-card__image,
.product-card__image,
.case-card__image,
.news-card__image {
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
}

/* 所有图片卡片 - 悬停渐变叠加层 */
.case-card__image::after,
.news-card__image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(37, 99, 235, 0.08) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 1;
    pointer-events: none;
}

.case-card:hover .case-card__image::after,
.news-card:hover .news-card__image::after {
    opacity: 1;
}

/* 所有图片卡片 - 悬停放大图片 */
.case-card:hover .case-card__image img,
.news-card:hover .news-card__image img {
    transform: scale(1.1);
}

/* 图片过渡 */
.case-card__image img,
.news-card__image img {
    transition: transform var(--transition-slow);
}


/* ============================================
   10. Categories - 产品分类
   ============================================ */

.categories {
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--gray-100) 100%);
    position: relative;
}

.categories::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gray-200), transparent);
}

.categories__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
}

.category-card {
    position: relative;
    text-align: center;
}

.category-card__image {
    display: none;
}

.category-card__overlay {
    display: none;
}

.category-card__content {
    padding: 32px 24px 28px;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.category-card__icon {
    width: 56px;
    height: 56px;
    background: var(--primary-50);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 16px;
    transition: all var(--transition-base);
}

.category-card:hover .category-card__icon {
    background: var(--primary);
    color: var(--white);
    transform: rotate(-10deg) scale(1.1);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
}

.category-card__title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
    transition: color var(--transition-base);
}

.category-card:hover .category-card__title {
    color: var(--primary);
}

.category-card__count {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.category-card__arrow {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-base);
}

.category-card:hover .category-card__arrow {
    opacity: 1;
    transform: translateX(0);
}


/* ============================================
   11. Featured Products - 精选产品
   ============================================ */

.featured {
    position: relative;
}

.featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.featured__tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 32px;
}

.tab-btn {
    padding: 12px 28px;
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-600);
    background: var(--gray-100);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
}

.tab-btn:hover {
    color: var(--primary);
    background: var(--primary-50);
}

.tab-btn.active {
    color: var(--white);
    background: var(--gradient-primary);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

.featured__grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}

@media (max-width: 1200px) {
    .featured__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .featured__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ── 产品卡片图片容器 ── */
.product-card__image {
    position: relative;
    aspect-ratio: 1 / 1;
}

/* 悬停时底部渐变叠加层 */
.product-card__image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(37, 99, 235, 0.06) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 1;
    pointer-events: none;
}

.product-card:hover .product-card__image::after {
    opacity: 1;
}

.product-card__image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-card__image img {
    transform: scale(1.1);
}

/* ── 产品卡片内容区 ── */
.product-card__content {
    padding: 28px 26px 24px;
}

.product-card__category {
    display: inline-block;
    padding: 6px 14px;
    background: var(--primary-50);
    color: var(--primary);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.product-card__title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-base);
}

.product-card:hover .product-card__title {
    color: var(--primary);
}

.featured__cta {
    text-align: center;
}


/* ============================================
   12. Custom Section - 定制服务
   ============================================ */

.custom {
    background: linear-gradient(135deg, #eef3ff 0%, #dce5f9 50%, #eef3ff 100%);
    position: relative;
}

.custom::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(to bottom, transparent, var(--white));
    pointer-events: none;
}

.custom__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    align-items: center;
}

@media (min-width: 1024px) {
    .custom__grid {
        grid-template-columns: 1fr 1fr;
    }
}

.custom__content .section__subtitle {
    color: var(--primary);
    font-weight: 600;
}

.custom__text {
    font-size: 1.0625rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 32px;
}

.custom__features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

.custom__feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.custom__feature-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: var(--primary-50);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.25rem;
    transition: all var(--transition-base);
}

.custom__feature:hover .custom__feature-icon {
    background: var(--primary);
    color: var(--white);
    transform: rotate(-10deg);
}

.custom__feature-content h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.custom__feature-content p {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.custom__image-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.custom__image {
    position: relative;
    width: 100%;
}

.custom__image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
}

.custom__btn {
    margin-top: 16px;
}

.custom__badge {
    position: absolute;
    bottom: -20px;
    left: -20px;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.custom__badge-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 4px;
}

.custom__badge-text {
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .custom__features {
        grid-template-columns: 1fr;
    }
}


/* ============================================
   13. About Section - 关于我们
   ============================================ */

.about {
    position: relative;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    min-height: 450px;
}

.about::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(124, 58, 237, 0.1) 0%, transparent 50%);
}

.about > * {
    position: relative;
    z-index: 1;
}

.about__bg {
    display: none;
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    align-items: center;
}

@media (min-width: 1024px) {
    .about__grid {
        grid-template-columns: 1fr 1fr;
    }
}

.about__images {
    position: relative;
}

.about__image-main {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    border: 6px solid var(--white);
}

.about__image-main img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.about__image-float {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    height: 200px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 6px solid var(--white);
}

.about__image-float img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about__experience {
    position: absolute;
    top: -20px;
    left: -20px;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.experience-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 4px;
}

.experience-text {
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0.9;
}

.about__text {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
    margin-bottom: 32px;
}

.about__content .section__subtitle {
    color: #ef4444;
    font-size: 1.25rem;
    font-weight: 600;
}

.about__content .section__title {
    color: var(--white);
}

.about__content .section__title .gradient-text {
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about__content .btn {
    margin-top: 16px;
}

.about__features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

.feature-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.feature-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.25rem;
    transition: all var(--transition-base);
}

.feature-item:hover .feature-icon {
    background: var(--primary);
    color: var(--white);
    transform: rotate(-10deg);
}

.feature-content h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 4px;
}

.feature-content p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}


/* ============================================
   14. Certificates - 资质证书
   ============================================ */

.certificates {
    background: linear-gradient(180deg, #f7f8fa 0%, var(--gray-50) 100%);
}

.certificates__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.certificate-card {
    position: relative;
}

.certificate-card__image {
    position: relative;
    overflow: hidden;
    background: var(--white);
    border: 6px solid var(--white);
    border-radius: var(--radius-lg);
}

.certificate-card__image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform var(--transition-slow);
}

.certificate-card__image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(37, 99, 235, 0.08) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 1;
    pointer-events: none;
}

.certificate-card:hover .certificate-card__image::after {
    opacity: 1;
}

.certificate-card:hover .certificate-card__image img {
    transform: scale(1.1);
}

.certificate-card__image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.4) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.certificate-card:hover .certificate-card__image::after {
    opacity: 1;
}

.certificate-card__content {
    display: none;
}

.certificate-card__icon {
    width: 56px;
    height: 56px;
    margin: -52px auto 16px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
    position: relative;
    z-index: 2;
    transition: all var(--transition-base);
}

.certificate-card:hover .certificate-card__icon {
    transform: scale(1.15) rotate(10deg);
    box-shadow: 0 12px 30px rgba(37, 99, 235, 0.5);
}

.certificate-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.certificate-card__desc {
    font-size: 0.875rem;
    color: var(--gray-500);
    line-height: 1.5;
}

.certificate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform var(--transition-base);
    z-index: 3;
}

.certificate-card:hover::before {
    transform: scaleX(1);
}

@media (max-width: 768px) {
    .certificates__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .certificate-card__image {
        min-height: 200px;
    }
}

@media (max-width: 480px) {
    .certificates__grid {
        grid-template-columns: 1fr;
    }
}


/* ============================================
   15. Cases - 客户案例
   ============================================ */

.cases {
    position: relative;
}

.cases::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gray-200), transparent);
}

.case-card {
    min-width: calc(33.333% - 20px);
}

.case-card__image {
    aspect-ratio: 4 / 3;
}

.case-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.case-card__content {
    padding: 24px;
}

.case-card__location {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 12px;
}

.case-card__title {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
    line-height: 1.5;
}

.case-card__desc {
    font-size: 0.875rem;
    color: var(--gray-500);
    line-height: 1.6;
}


/* ============================================
   16. Why Us - 我们的优势
   ============================================ */

.why-us {
    background: linear-gradient(180deg, #ebf4ff 0%, #dce8f9 100%);
    position: relative;
}

.why-us::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

.why-us__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.advantage-card {
    padding: 40px 30px;
    text-align: center;
    position: relative;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.advantage-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 24px 48px rgba(37, 99, 235, 0.1), 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--primary-200);
}

.advantage-card:hover::before {
    transform: scaleX(1);
}

.advantage-card__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--primary-50);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary);
    transition: all var(--transition-base);
}

.advantage-card:hover .advantage-card__icon {
    background: var(--gradient-primary);
    color: var(--white);
    transform: rotateY(180deg);
}

.advantage-card__title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
    transition: color var(--transition-base);
}

.advantage-card:hover .advantage-card__title {
    color: var(--primary);
}

.advantage-card__desc {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.6;
}


/* ============================================
   17. News - 新闻资讯
   ============================================ */

.news {
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--gray-100) 100%);
}

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

.news-card__image {
    position: relative;
    aspect-ratio: 4 / 3;
}

.news-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.news-card__date {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 8px 16px;
    background: var(--primary);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.news-card__content {
    padding: 24px;
}

.news-card__category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--accent-50, #fef3c7);
    color: var(--accent-dark);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
}

.news-card__title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
    line-height: 1.5;
}

.news-card__desc {
    font-size: 0.875rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 16px;
}

.news-card__link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    transition: all var(--transition-base);
}

.news-card__link:hover {
    gap: 12px;
}


/* ============================================
   18. CTA - 行动号召
   ============================================ */

.cta {
    background: var(--gray-900) url('../img/bg02.jpg') center/cover fixed;
    position: relative;
    padding: 70px 0;
}

.cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
}

.cta > * {
    position: relative;
    z-index: 1;
}

.cta__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.cta__title {
    font-size: 24px;
    font-weight: 600;
    color: var(--white);
    line-height: 1.25;
    max-width: 650px;
}

.cta__desc {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.125rem;
    margin-bottom: 24px;
}


/* ============================================
   19. Contact - 联系我们
   ============================================ */

.contact {
    background: var(--white);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
}

@media (min-width: 1024px) {
    .contact__grid {
        grid-template-columns: 1fr 1fr;
    }
}

.contact__text {
    font-size: 1.0625rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact__details {
    display: grid;
    gap: 24px;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    width: 56px;
    height: 56px;
    min-width: 56px;
    background: var(--primary-50);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.25rem;
    transition: all var(--transition-base);
}

.contact-item:hover .contact-icon {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.1);
}

.contact-content h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.contact-content p {
    font-size: 0.9375rem;
    color: var(--gray-500);
}

.contact__social {
    margin-top: 32px;
}

.contact__social-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact__social-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.social-link {
    width: 46px;
    height: 46px;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    font-size: 1.125rem;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
    position: relative;
    text-decoration: none;
}

.social-link::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: transparent;
    transition: background 0.3s ease;
    z-index: -1;
}

/* 品牌专属悬浮色 */
.social-link[data-brand="facebook"]:hover {
    background: #1877f2;
    color: #fff;
}
.social-link[data-brand="facebook"]:hover::before {
    background: rgba(24, 119, 242, 0.15);
}

.social-link[data-brand="twitter"]:hover {
    background: #0f1419;
    color: #fff;
}
.social-link[data-brand="twitter"]:hover::before {
    background: rgba(15, 20, 25, 0.12);
}

.social-link[data-brand="linkedin"]:hover {
    background: #0a66c2;
    color: #fff;
}
.social-link[data-brand="linkedin"]:hover::before {
    background: rgba(10, 102, 194, 0.15);
}

.social-link[data-brand="youtube"]:hover {
    background: #ff0000;
    color: #fff;
}
.social-link[data-brand="youtube"]:hover::before {
    background: rgba(255, 0, 0, 0.12);
}

.social-link[data-brand="instagram"]:hover {
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
    color: #fff;
}
.social-link[data-brand="instagram"]:hover::before {
    background: rgba(220, 39, 67, 0.12);
}

.social-link[data-brand="whatsapp"]:hover {
    background: #25d366;
    color: #fff;
}
.social-link[data-brand="whatsapp"]:hover::before {
    background: rgba(37, 211, 102, 0.15);
}

.social-link:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.contact__form-wrapper {
    background: var(--gray-50);
    border-radius: var(--radius-xl);
    padding: 40px;
}

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

.form-title {
    grid-column: 1 / -1;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.form-group {
    position: relative;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 16px 20px;
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    color: var(--gray-900);
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    outline: none;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-100);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--gray-400);
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}


/* ============================================
   20. Footer - 页脚
   ============================================ */

.footer {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: var(--gray-400);
}

.footer__top {
    padding: 50px 0 40px;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

@media (min-width: 768px) {
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer__grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer__logo .logo-icon {
    width: 44px;
    height: 44px;
    font-size: 1.25rem;
}

.footer__logo .logo-text {
    color: var(--white);
}

.footer__desc {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.footer__social {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.footer__social a {
    width: 42px;
    height: 42px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
    text-decoration: none;
    position: relative;
}

.footer__social a::before {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    background: transparent;
    transition: background 0.3s ease;
    z-index: -1;
}

.footer__social a[data-brand="facebook"]:hover {
    background: #1877f2;
    color: #fff;
}
.footer__social a[data-brand="twitter"]:hover {
    background: #0f1419;
    color: #fff;
}
.footer__social a[data-brand="linkedin"]:hover {
    background: #0a66c2;
    color: #fff;
}
.footer__social a[data-brand="youtube"]:hover {
    background: #ff0000;
    color: #fff;
}
.footer__social a[data-brand="instagram"]:hover {
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
    color: #fff;
}
.footer__social a[data-brand="whatsapp"]:hover {
    background: #25d366;
    color: #fff;
}

.footer__social a:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

.footer__title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 24px;
}

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

.footer__links a {
    font-size: 0.9375rem;
    color: var(--gray-400);
    transition: all var(--transition-base);
}

.footer__links a:hover {
    color: var(--white);
    padding-left: 8px;
}

.footer__contact {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer__contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.9375rem;
}

.footer__contact i {
    color: var(--primary-light);
    margin-top: 4px;
}

.footer__qrcode {
    display: flex;
    gap: 16px;
    margin-top: 20px;
}

.footer__qrcode-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.footer__qrcode-item img {
    width: 100px;
    height: 100px;
    object-fit: contain;
    background: var(--white);
    border-radius: var(--radius-sm);
    padding: 4px;
}

.footer__qrcode-item span {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer__bottom {
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.875rem;
}

/* Footer Logo Image */
.footer__logo-img {
    height: 40px;
    width: auto;
}


/* ============================================
   21. Floating Buttons - 悬浮按钮
   ============================================ */

.floating-buttons {
    position: fixed;
    right: 20px;
    bottom: 100px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.floating-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    position: relative;
    text-decoration: none;
    color: var(--white);
    font-size: 1.25rem;
}

.floating-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.floating-btn--whatsapp {
    background: #25D366;
}

.floating-btn--wechat {
    background: #07C160;
}

.floating-btn--quote {
    background: #e53935;
    position: relative;
}

.floating-btn--quote i {
    position: relative;
    z-index: 2;
}

/* 脉冲效果 */
.floating-btn__pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: #e53935;
    z-index: 1;
}

.floating-btn__pulse::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: #e53935;
    animation: pulse-ring 1.5s ease-out infinite;
}

.floating-btn__pulse::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: #e53935;
    animation: pulse-ring 1.5s ease-out 0.5s infinite;
}

@keyframes pulse-ring {
    0% {
        transform: scale(1);
        opacity: 0.8;
    }
    100% {
        transform: scale(1.8);
        opacity: 0;
    }
}

.floating-btn--quote:hover {
    background: #c62828;
}

.floating-btn--quote:hover .floating-btn__pulse::before,
.floating-btn--quote:hover .floating-btn__pulse::after {
    animation: none;
}

/* 提示框 */
.floating-btn__tooltip {
    position: absolute;
    right: 60px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    pointer-events: none;
    width: 150px;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-btn__tooltip img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.floating-btn__tooltip::after {
    content: '';
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    border: 8px solid transparent;
    border-left-color: var(--white);
    border-right: 0;
}

.floating-btn:hover .floating-btn__tooltip {
    opacity: 1;
    visibility: visible;
}


/* ============================================
   22. Modal - 弹窗组件
   ============================================ */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

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

.modal__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal__content {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 40px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(20px);
    transition: transform var(--transition-base);
}

.modal.active .modal__content {
    transform: translateY(0);
}

.modal__close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: none;
    background: var(--gray-100);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    transition: all var(--transition-base);
}

.modal__close:hover {
    background: var(--gray-200);
    color: var(--gray-900);
}

.modal__header {
    margin-bottom: 24px;
}

.modal__title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.modal__desc {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.modal__form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal__form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.modal__form .form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.modal__form label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
}

.modal__form input,
.modal__form select,
.modal__form textarea {
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-family: var(--font-primary);
    transition: border-color var(--transition-base);
    background: var(--white);
}

.modal__form input:focus,
.modal__form select:focus,
.modal__form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-50);
}

.modal__form textarea {
    resize: vertical;
    min-height: 80px;
}

.modal__form .btn-block {
    width: 100%;
    justify-content: center;
    padding: 12px;
    font-size: 1rem;
    margin-top: 8px;
}

/* 返回顶部 */
.back-to-top {
    position: fixed;
    right: 20px;
    bottom: 30px;
    z-index: 99;
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.back-to-top:hover {
    background: var(--primary-dark, #0056b3);
    transform: translateY(0) scale(1.05);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 移动端弹窗 */
@media (max-width: 768px) {
    .floating-buttons {
        right: 15px;
        bottom: 80px;
    }
    
    .floating-btn {
        width: 45px;
        height: 45px;
    }
    
    .floating-btn__tooltip {
        display: none;
    }
    
    .back-to-top {
        right: 15px;
        bottom: 25px;
        width: 45px;
        height: 45px;
    }
    
    .modal__content {
        padding: 24px;
        margin: 15px;
    }
    
    .modal__form .form-row {
        grid-template-columns: 1fr;
    }
}


/* ============================================
   23. Marquee - 滚动轮播
   ============================================ */

.marquee-container {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 40px 0;
    mask-image: linear-gradient(to right, transparent 0%, black 5%, black 95%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, black 5%, black 95%, transparent 100%);
}

.marquee-track {
    display: flex;
    gap: 24px;
    width: max-content;
    padding: 10px 0;
    will-change: transform;
}

.marquee-track.running {
    animation: marquee-scroll var(--marquee-duration, 40s) linear infinite;
}

.marquee-track.running:hover {
    animation-play-state: paused;
}

@keyframes marquee-scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.marquee-track .certificate-card {
    min-width: 220px;
    max-width: 220px;
    flex-shrink: 0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.marquee-track .certificate-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.marquee-track .case-card {
    min-width: 320px;
    max-width: 320px;
    flex-shrink: 0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.marquee-track .case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.marquee-track .case-card__image {
    aspect-ratio: 16 / 10;
}

.marquee-track .case-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.marquee-track .case-card:hover .case-card__image img {
    transform: scale(1.05);
}

.marquee-track .case-card__content {
    padding: 20px;
}

.marquee-track .case-card__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 10px;
    line-height: 1.4;
}

.marquee-track .case-card__desc {
    font-size: 0.8125rem;
    color: var(--gray-500);
    line-height: 1.5;
}

@media (max-width: 768px) {
    .marquee-track .certificate-card {
        min-width: 240px;
    }
    
    .marquee-track .case-card {
        min-width: 300px;
    }
    
    .marquee-track {
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .marquee-track .certificate-card {
        min-width: 200px;
    }
    
    .marquee-track .case-card {
        min-width: 260px;
    }
}


/* ============================================
   24. Sub Pages - 子页面样式
   ============================================ */

/* Page Hero */
.page-hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    padding: 120px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(124, 58, 237, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.page-hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.page-hero > * {
    position: relative;
    z-index: 1;
}

.page-hero__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
}

.page-hero__desc {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.85);
}

.page-hero__subtitle {
    margin-bottom: 12px;
    font-size: 0.9375rem;
}

.page-hero__back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--white);
    opacity: 0.8;
    transition: opacity var(--transition-base);
    text-decoration: none;
}

.page-hero__back:hover {
    opacity: 1;
}

/* Products Page */
.products-toolbar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.products-search {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    max-width: 500px;
}

.products-search__input {
    flex: 1;
    padding: 12px 20px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-size: 0.9375rem;
    font-family: var(--font-primary);
    transition: all var(--transition-base);
    background: var(--white);
    outline: none;
}

.products-search__input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-50);
}

.products-search__btn {
    flex-shrink: 0;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
}

.pagination__btn {
    width: 40px;
    height: 40px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: var(--white);
    color: var(--gray-700);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.pagination__btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination__btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

.pagination__btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination__info {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin: 0 12px;
}

/* Responsive Products */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-toolbar {
        flex-direction: column;
    }
    
    .products-search {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
}

/* Production Grid */
.production-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

@media (max-width: 768px) {
    .production-grid {
        grid-template-columns: 1fr;
    }
}

.production-grid .product-card__image {
    aspect-ratio: 16 / 9;
}

/* Product Detail */
.product-detail__rich-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 1rem;
    line-height: 1.8;
    color: var(--gray-600);
}

.product-detail__rich-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 32px 0 16px;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
    transition: border-color var(--transition-base);
}

.product-detail__rich-content h3:first-child {
    margin-top: 0;
}

.product-detail__rich-content p {
    margin-bottom: 16px;
}

.product-detail__rich-content ul,
.product-detail__rich-content ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.product-detail__rich-content li {
    margin-bottom: 8px;
    position: relative;
}

.product-detail__rich-content ul li::marker {
    color: var(--primary);
}

.product-detail__rich-content table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-bottom: 24px;
    border: 1px solid var(--gray-100);
}

.product-detail__rich-content table td {
    padding: 14px 24px;
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.9375rem;
}

.product-detail__rich-content table td:first-child {
    font-weight: 600;
    color: var(--gray-900);
    width: 30%;
    background: var(--gray-50);
}

.product-detail__rich-content table tr:last-child td {
    border-bottom: none;
}

.product-detail__rich-content table tr:hover td {
    background: var(--primary-50);
}

.product-detail__rich-content table tr:hover td:first-child {
    background: var(--primary-100);
    color: var(--primary);
}

.product-detail__rich-content img {
    max-width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin: 16px 0;
}

/* 详情页通用布局（动态接口数据） */
.detail-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
    margin-bottom: 48px;
}
.detail-gallery__img,
.detail-hero-img {
    width: 100%;
    border-radius: var(--radius-lg);
    object-fit: cover;
    aspect-ratio: 4 / 3;
    background: var(--gray-100);
    box-shadow: var(--shadow-md);
}

/* 产品详情 - 规格列表 */
.product-specs {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.product-specs li {
    padding: 14px 20px;
    border-bottom: 1px solid var(--gray-50);
    font-size: 0.9375rem;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    transition: background 0.2s ease;
}
.product-specs li:last-child {
    border-bottom: none;
}
.product-specs li:hover {
    background: var(--primary-50);
}
.product-specs li strong {
    width: 110px;
    color: var(--gray-900);
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray-500);
}
.product-specs li:hover strong {
    color: var(--primary);
}
.product-specs li strong i {
    color: var(--primary);
    width: 18px;
    font-size: 0.875rem;
}

/* 产品详情 - 标签徽章网格 */
.product-badges {
    list-style: none;
    padding: 0;
    margin: 0 0 32px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.product-badges li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--gray-50);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--gray-700);
    transition: all 0.25s ease;
}
.product-badges li:hover {
    background: var(--primary-50);
    border-color: var(--primary-200);
    box-shadow: var(--shadow-sm);
}
.product-badges li i {
    color: var(--primary);
    width: 20px;
    font-size: 1rem;
    text-align: center;
}
.detail-thumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 16px;
}
.detail-thumbs img {
    width: 92px;
    height: 72px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 2px solid transparent;
    cursor: pointer;
}
.detail-info {
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.detail-name {
    font-size: 1.9rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}
.detail-summary {
    color: var(--gray-600);
    font-size: 1.05rem;
    line-height: 1.7;
}
.detail-meta {
    list-style: none;
    padding: 0;
    margin: 8px 0 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.detail-meta li {
    color: var(--gray-700);
    font-size: 0.95rem;
}
.detail-meta strong {
    color: var(--gray-900);
    margin-right: 6px;
}
.detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 8px;
}
.detail-tag {
    padding: 6px 14px;
    background: var(--gray-100);
    border-radius: 999px;
    font-size: 0.85rem;
    color: var(--gray-700);
}
.detail-block {
    margin-top: 40px;
}
.detail-block__title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 18px;
    color: var(--gray-900);
}
.detail-testimonial {
    border-left: 4px solid var(--primary);
    padding: 16px 20px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    color: var(--gray-700);
    font-style: italic;
    margin-top: 16px;
}
.list-loading,
.list-empty {
    text-align: center;
    padding: 60px 0;
    color: var(--gray-500);
    font-size: 1.05rem;
}
@media (max-width: 768px) {
    .detail-main {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}

/* Compact Page */
.page-compact .section {
    padding: 30px 0;
}

.page-compact .section__header {
    margin-bottom: 24px;
}

.page-compact .section__subtitle {
    margin-bottom: 8px;
}

.page-compact .why-us__grid {
    gap: 20px;
}

.page-compact .advantage-card {
    padding: 24px 20px;
}

.page-compact .advantage-card__icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    font-size: 1.375rem;
}

.page-compact .advantage-card__title {
    font-size: 1.0625rem;
    margin-bottom: 8px;
}

.page-compact .custom__grid {
    gap: 40px;
}

.page-compact .custom__text {
    font-size: 0.9375rem;
    margin-bottom: 20px;
}

.page-compact .custom__btn {
    margin-top: 8px;
}

.page-compact .page-hero {
    padding: 80px 0 30px;
}

.page-compact .page-hero__title {
    font-size: 1.75rem;
}

/* Product Gallery */
.product-gallery {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.product-gallery__main {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--gray-50);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
}

.product-gallery__main img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: contain;
    display: block;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.product-gallery__main:hover img {
    transform: scale(1.03);
}

.product-gallery__thumbs-wrap {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-gallery__thumbs {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 4px 0;
    flex: 1;
}

.product-gallery__thumbs::-webkit-scrollbar {
    display: none;
}

.gallery-thumbs__arrow {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid var(--gray-200);
    background: var(--white);
    color: var(--gray-600);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    font-size: 0.75rem;
    padding: 0;
}

.gallery-thumbs__arrow:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.product-gallery__thumb {
    flex-shrink: 0;
    width: calc((100% - 40px) / 5);
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 2px solid var(--gray-200);
    cursor: pointer;
    transition: all var(--transition-base);
    opacity: 0.6;
    box-sizing: border-box;
}

.product-gallery__thumb:hover {
    opacity: 0.9;
    border-color: var(--primary);
}

.product-gallery__thumb.active {
    opacity: 1;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-50);
}

/* Cases Grid */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

/* News Tabs (Category Filter) */
.news__tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 32px;
    justify-content: center;
}

.news__tab {
    padding: 8px 24px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-full);
    background: var(--white);
    color: var(--gray-600);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.news__tab:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.news__tab.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* News List */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-list-item {
    display: flex;
    gap: 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--gray-200);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1.2);
    cursor: pointer;
}

.news-list-item:hover {
    border-color: var(--primary);
    box-shadow: 0 16px 36px rgba(37, 99, 235, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
    transform: translateX(6px);
}

.news-list-item__image {
    flex: 0 0 260px;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    position: relative;
}

.news-list-item__image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(37, 99, 235, 0.08) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 1;
    pointer-events: none;
}

.news-list-item:hover .news-list-item__image::after {
    opacity: 1;
}

.news-list-item__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.news-list-item:hover .news-list-item__image img {
    transform: scale(1.1);
}

.news-list-item__content {
    flex: 1;
    padding: 24px 24px 24px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-list-item__date {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
    align-self: flex-start;
}

.news-list-item__title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
    line-height: 1.5;
}

.news-list-item__desc {
    font-size: 0.875rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 16px;
}

.news-list-item__link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    transition: all var(--transition-base);
}

.news-list-item__link:hover {
    gap: 12px;
}

/* News List Item Action Button */
.news-list-item__action {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    min-width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gray-100);
    color: var(--gray-400);
    font-size: 1rem;
    transition: all var(--transition-base);
    margin: auto 20px auto 0;
}

.news-list-item:hover .news-list-item__action {
    background: var(--primary);
    color: var(--white);
    transform: translateX(4px);
}

@media (max-width: 768px) {
    .news-list-item__action {
        display: none;
    }
}

/* About Page */
.about-page__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    align-items: center;
}

@media (min-width: 1024px) {
    .about-page__grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* About Page Gallery - 图片画廊 */
.about-page__gallery {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.about-page__gallery-main {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.about-page__gallery-main img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    display: block;
}

.about-page__gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.about-page__gallery-thumbs img {
    width: 100%;
    height: 100px;
    object-fit: cover;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.about-page__gallery-thumbs img:hover {
    border-color: var(--primary);
    transform: scale(1.02);
}

.about-page__content p {
    font-size: 1.0625rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-page__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--gray-200);
}

.about-page__stat {
    text-align: center;
}

.about-page__stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 4px;
}

.about-page__stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

@media (max-width: 768px) {
    .about-page__gallery-thumbs {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .about-page__gallery-thumbs img {
        height: 80px;
    }
    
    .about-page__stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Process Grid */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.process-item {
    text-align: center;
    padding: 30px 20px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.process-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.process-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 16px;
    opacity: 0.5;
}

.process-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.process-desc {
    font-size: 0.875rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* ============================================
   Factory Section - 生产基地展示
   ============================================ */

.factory-section {
    position: relative;
    overflow: hidden;
}

.factory-section .section__header .section__subtitle {
    color: var(--accent-light);
    letter-spacing: 4px;
    font-size: 0.8125rem;
}

.factory-section .section__header .section__title {
    color: var(--white);
    font-size: clamp(2rem, 4vw, 2.75rem);
    letter-spacing: 1px;
}

.factory-section .section__header .section__title .gradient-text {
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.factory-section .section__header .section__desc {
    color: rgba(255, 255, 255, 0.7);
    font-weight: 300;
    letter-spacing: 0.5px;
}

.factory-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(26, 86, 219, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(124, 58, 237, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.factory-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 20px;
    margin-bottom: 40px;
    position: relative;
}

.factory-grid__main {
    grid-column: 1;
    grid-row: 1;
}

.factory-grid__side {
    grid-column: 2;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.factory-grid__bottom {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.factory-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    height: 280px;
}

.factory-card--featured {
    height: 100%;
    min-height: 400px;
}

.factory-card--horizontal {
    height: 220px;
}

.factory-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.factory-card__content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 28px;
    background: linear-gradient(to top, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.7) 50%, transparent 100%);
    color: var(--white);
    transform: translateY(calc(100% - 80px));
    transition: transform var(--transition-base);
}

.factory-card:hover .factory-card__content {
    transform: translateY(0);
}

.factory-card__number {
    position: absolute;
    top: -50px;
    right: 24px;
    font-size: 5rem;
    font-weight: 900;
    color: rgba(255,255,255,0.08);
    line-height: 1;
    font-family: 'Georgia', serif;
    letter-spacing: -2px;
}

.factory-card__content h3 {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.factory-card__content p {
    font-size: 0.9375rem;
    opacity: 0;
    transition: opacity var(--transition-base);
    line-height: 1.7;
    font-weight: 300;
    letter-spacing: 0.3px;
}

.factory-card:hover .factory-card__content p {
    opacity: 1;
}

.factory-highlights {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}

.factory-highlight {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 28px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid rgba(0,0,0,0.05);
}

.factory-highlight:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.factory-highlight__icon {
    width: 60px;
    height: 60px;
    min-width: 60px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.factory-highlight__info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.factory-highlight__number {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.1;
    letter-spacing: -0.5px;
    font-family: 'Georgia', 'Times New Roman', serif;
}

.factory-highlight__label {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
    letter-spacing: 0.5px;
}

@media (max-width: 992px) {
    .factory-grid {
        grid-template-columns: 1fr;
    }
    
    .factory-grid__side {
        grid-column: 1;
        flex-direction: row;
    }
    
    .factory-card--featured {
        min-height: 300px;
    }
    
    .factory-grid__bottom {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .factory-highlights {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .factory-card {
        height: 220px;
    }
    
    .factory-card--featured {
        min-height: 250px;
    }
    
    .factory-card--horizontal {
        height: 180px;
    }
    
    .factory-grid__side {
        flex-direction: column;
    }
    
    .factory-grid__bottom {
        grid-template-columns: 1fr;
    }
    
    .factory-card__content {
        transform: translateY(0);
        padding: 16px;
    }
    
    .factory-card__content p {
        opacity: 1;
        font-size: 0.8125rem;
    }
    
    .factory-card__number {
        font-size: 2.5rem;
        top: -25px;
    }
    
    .factory-highlight {
        padding: 16px;
    }
    
    .factory-highlight__icon {
        width: 44px;
        height: 44px;
        min-width: 44px;
        font-size: 1.25rem;
    }
    
    .factory-highlight__number {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .factory-highlights {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Photo Wall - 客户照片墙
   ============================================ */

.photo-wall-section {
    position: relative;
    overflow: hidden;
}

.photo-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(26, 86, 219, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(124, 58, 237, 0.06) 0%, transparent 40%);
    pointer-events: none;
}

.photo-wall {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.photo-wall__col {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.photo-wall__item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
}

.photo-wall__item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
    transition: transform var(--transition-slow);
}

.photo-wall__item--tall img {
    height: 320px;
}

.photo-wall__item:hover img {
    transform: scale(1.08);
}

.photo-wall__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.3) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    color: var(--white);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.photo-wall__item:hover .photo-wall__overlay {
    opacity: 1;
}

.photo-wall__tag {
    display: inline-block;
    align-self: flex-start;
    padding: 4px 12px;
    background: var(--primary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.photo-wall__overlay h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.photo-wall__overlay p {
    font-size: 0.875rem;
    opacity: 0.9;
}

.photo-wall__stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.photo-wall__stat {
    text-align: center;
    padding: 16px;
}

.photo-wall__stat-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 12px;
    background: var(--primary-50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.25rem;
}

.photo-wall__stat-number {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.photo-wall__stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

@media (max-width: 992px) {
    .photo-wall {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .photo-wall__item--tall img {
        height: 250px;
    }
}

@media (max-width: 768px) {
    .photo-wall {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .photo-wall__item img {
        height: 150px;
    }
    
    .photo-wall__item--tall img {
        height: 200px;
    }
    
    .photo-wall__overlay {
        padding: 14px;
    }
    
    .photo-wall__overlay h4 {
        font-size: 1rem;
    }
    
    .photo-wall__stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        padding: 24px;
    }
    
    .photo-wall__stat-number {
        font-size: 1.5rem;
    }
}

/* ============================================
   Hexagon Grid - 六边形/圆形配件品牌
   ============================================ */

.hexagon-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    max-width: 800px;
    margin: 0 auto 30px;
}

.hexagon-item {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    transition: all var(--transition-base);
    cursor: pointer;
}

.hexagon-item:hover {
    transform: scale(1.1);
    box-shadow: 0 0 25px rgba(37, 99, 235, 0.5);
}

.hexagon-inner {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
}

.hexagon-content {
    text-align: center;
    color: var(--white);
}

.hexagon-content i {
    font-size: 1.5rem;
    margin-bottom: 6px;
    display: block;
    opacity: 0.9;
}

.hexagon-content span {
    display: block;
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.hexagon-content small {
    display: block;
    font-size: 0.6875rem;
    opacity: 0.8;
}

.hexagon-badge {
    display: flex;
    justify-content: center;
}

.hexagon-badge__inner {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
}

.hexagon-badge__number {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 2px;
}

.hexagon-badge__text {
    font-size: 0.875rem;
    font-weight: 500;
}

@media (max-width: 992px) {
    .hexagon-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
}

@media (max-width: 768px) {
    .hexagon-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
    }
    
    .hexagon-content i {
        font-size: 1.25rem;
    }
    
    .hexagon-content span {
        font-size: 0.75rem;
    }
    
    .hexagon-content small {
        font-size: 0.625rem;
    }
    
    .hexagon-badge__inner {
        width: 100px;
        height: 100px;
    }
    
    .hexagon-badge__number {
        font-size: 1.5rem;
    }
    
    .hexagon-badge__text {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .hexagon-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }
    
    .hexagon-inner {
        padding: 10px;
    }
}


/* ============================================
   25. Animations - 动画效果
   ============================================ */

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

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}


/* ============================================
   26. Responsive - 响应式布局
   ============================================ */

@media (max-width: 1024px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .section__header {
        margin-bottom: 32px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 50px 0;
    }
    
    html {
        font-size: 15px;
    }
    
    .section__header {
        margin-bottom: 28px;
    }
    
    .section__title {
        font-size: clamp(1.75rem, 5vw, 2.5rem);
    }
    
    .section__desc {
        font-size: 1rem;
    }
    
    .hero__stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .about {
        background-attachment: scroll;
    }
    
    .about__features {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width {
        grid-column: auto;
    }
    
    .news__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .container {
        padding: 0 16px;
    }
    
    .page-hero {
        padding: 100px 0 40px;
    }
    
    .about-page__stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .news-list-item {
        flex-direction: column;
    }
    
    .news-list-item__image {
        flex: 0 0 200px;
    }
    
    .news-list-item__content {
        padding: 0 20px 20px;
    }
    
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .map-container iframe {
        height: 280px;
    }
}

@media (max-width: 480px) {
    :root {
        --section-padding: 40px 0;
    }
    
    .hero__buttons {
        flex-direction: column;
    }
    
    .hero__buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .cta__content {
        flex-direction: column;
        text-align: center;
    }
    
    .cta__title {
        max-width: 100%;
    }
    
    .news__grid {
        grid-template-columns: 1fr;
    }
    
    .section__subtitle::before,
    .section__subtitle::after {
        display: none;
    }
    
    .process-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   18. Mobile Menu - 移动端导航菜单 (SPA 补充样式)
   ============================================ */
.mobile-menu {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
    border-bottom: 1px solid var(--gray-100);
    z-index: 999;
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    max-height: calc(100vh - 72px);
    overflow-y: auto;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu__list {
    list-style: none;
    margin: 0;
    padding: 8px 0;
}

.mobile-menu__list li {
    border-bottom: 1px solid var(--gray-100);
}

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

.mobile-menu__link {
    display: block;
    padding: 16px 24px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray-800);
    text-decoration: none;
    transition: all var(--transition-base);
}

.mobile-menu__link:hover,
.mobile-menu__link.router-link-active {
    color: var(--primary);
    background: var(--primary-50);
    padding-left: 32px;
}

@media (min-width: 1024px) {
    .mobile-menu {
        display: none;
    }
}