/* ==========================================================================
   陕西东正标识 - 全站设计系统
   品牌主色：复古红（#8B1A1A - 故宫宫墙红/朱砂红/中式复古）
   设计风格：现代、简洁、专业、稳重（仿qqsigns.com风格）
   ========================================================================== */

:root {
    /* 品牌主色 - 复古红系（用于边框/分隔线/按钮/装饰等细节） */
    --brand-vintage: #8B1A1A;        /* 主复古红 - 故宫红 */
    --brand-vintage-dark: #6B1414;   /* 深复古红 */
    --brand-vintage-light: #A93226;  /* 暖复古红 */
    --brand-vintage-50: #FBF5F4;     /* 极淡复古红背景 */
    --brand-vintage-100: #F3E2DF;    /* 浅复古红背景 */

    /* Logo 原始红色（仅用于展示品牌色） */
    --logo-red: #C71414;

    /* 中性色 */
    --ink-900: #1a1a1a;
    --ink-800: #2d2d2d;
    --ink-700: #404040;
    --ink-600: #595959;
    --ink-500: #8a8a8a;
    --ink-400: #b8b8b8;
    --ink-300: #d9d9d9;
    --ink-200: #e8e8e8;
    --ink-100: #f4f4f4;
    --ink-50: #fafafa;
    --pure-white: #ffffff;

    /* 强调色 */
    --gold: #b8924a;
    --gold-light: #d9b97a;

    /* 间距 */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 24px;
    --space-6: 32px;
    --space-7: 48px;
    --space-8: 64px;
    --space-9: 96px;

    /* 字号 */
    --fs-xs: 12px;
    --fs-sm: 14px;
    --fs-base: 16px;
    --fs-md: 18px;
    --fs-lg: 20px;
    --fs-xl: 24px;
    --fs-2xl: 32px;
    --fs-3xl: 42px;
    --fs-4xl: 56px;
    --fs-5xl: 72px;

    /* 圆角 */
    --r-sm: 4px;
    --r-md: 8px;
    --r-lg: 12px;
    --r-xl: 20px;

    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 32px rgba(0,0,0,0.12);
    --shadow-red: 0 4px 16px rgba(139,26,26,0.20);

    /* 容器 */
    --container: 1240px;
    --container-narrow: 960px;

    /* 过渡 */
    --t-fast: 150ms ease;
    --t-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --t-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   基础重置
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: var(--fs-base);
    line-height: 1.6;
    color: var(--ink-800);
    background: var(--pure-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a { color: inherit; text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--brand-vintage); }

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-weight: 600;
    line-height: 1.3;
    color: var(--ink-900);
    letter-spacing: -0.01em;
}

p { margin: 0 0 var(--space-4) 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

button {
    border: none;
    background: none;
    cursor: pointer;
    font: inherit;
    color: inherit;
}

/* ==========================================================================
   通用工具类
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-5);
}

.container-narrow {
    width: 100%;
    max-width: var(--container-narrow);
    margin: 0 auto;
    padding: 0 var(--space-5);
}

.section {
    padding: var(--space-9) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--space-7);
}

.section-title .eyebrow {
    display: inline-block;
    color: var(--brand-vintage);
    font-size: var(--fs-sm);
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--space-3);
    position: relative;
    padding: 0 var(--space-5);
}

.section-title .eyebrow::before,
.section-title .eyebrow::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 24px;
    height: 1px;
    background: var(--brand-vintage);
}

.section-title .eyebrow::before { right: 100%; }
.section-title .eyebrow::after { left: 100%; }

.section-title h2 {
    font-size: var(--fs-3xl);
    color: var(--ink-900);
    margin: 0;
}

.section-title .subtitle {
    color: var(--ink-600);
    font-size: var(--fs-md);
    margin-top: var(--space-3);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 14px 32px;
    font-size: var(--fs-base);
    font-weight: 500;
    border-radius: var(--r-md);
    transition: all var(--t-normal);
    cursor: pointer;
    white-space: nowrap;
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--brand-vintage);
    color: var(--pure-white);
    box-shadow: var(--shadow-red);
}

.btn-primary:hover {
    background: var(--brand-vintage-dark);
    color: var(--pure-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139,26,26,0.35);
}

.btn-outline {
    background: transparent;
    color: var(--ink-900);
    border-color: var(--ink-300);
}

.btn-outline:hover {
    border-color: var(--brand-vintage);
    color: var(--brand-vintage);
}

/* ==========================================================================
   导航栏
   ========================================================================== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.96);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--ink-200);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

/* Header 右侧组合（导航 + 联系方式） */
.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-5);
}

/* Header 联系方式块（桌面端显示，移动端隐藏改用Hero联系条） */
.header-contact {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding-left: var(--space-5);
    border-left: 1px solid var(--ink-200);
}

.header-contact-item {
    display: flex;
    align-items: baseline;
    gap: 8px;
    text-decoration: none;
    line-height: 1.3;
}

.hc-label {
    font-size: 11px;
    color: var(--ink-500);
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.hc-num {
    font-size: 15px;
    font-weight: 800;
    color: var(--brand-vintage);
    letter-spacing: 0.02em;
    white-space: nowrap;
    font-feature-settings: "tnum";
    transition: color var(--t-fast);
}

.header-contact-item:hover .hc-num {
    color: var(--brand-vintage-dark);
}

.brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-weight: 700;
    color: var(--ink-900);
}

.brand-logo {
    width: 44px;
    height: 44px;
    background: var(--brand-vintage);
    color: var(--pure-white);
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-md);
    font-weight: 700;
    letter-spacing: 0.05em;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.brand-logo::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gold);
}

/* 新Logo图片样式（替代CSS文字Logo） */
.brand-logo-img {
    width: 56px;
    height: 56px;
    border-radius: var(--r-sm);
    flex-shrink: 0;
    display: block;
    box-shadow: 0 2px 8px rgba(139,26,26,0.15);
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.brand-name {
    font-size: var(--fs-md);
    font-weight: 700;
    color: var(--ink-900);
    letter-spacing: 0.02em;
}

.brand-tagline {
    font-size: var(--fs-xs);
    color: var(--ink-500);
    letter-spacing: 0.05em;
}

.nav-list {
    display: flex;
    gap: var(--space-2);
    align-items: center;
}

.nav-link {
    position: relative;
    display: inline-block;
    padding: var(--space-3) var(--space-4);
    font-size: var(--fs-base);
    font-weight: 500;
    color: var(--ink-700);
    border-radius: var(--r-sm);
    transition: all var(--t-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--brand-vintage);
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 6px;
    width: 0;
    height: 2px;
    background: var(--brand-vintage);
    transform: translateX(-50%);
    transition: width var(--t-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: calc(100% - 32px);
}

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--ink-900);
    transition: all var(--t-fast);
    border-radius: 2px;
}

/* ==========================================================================
   导航下拉菜单（标识标牌 / 城市家具）
   ========================================================================== */
.nav-item-dropdown {
    position: relative;
}

.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    min-width: 180px;
    background: #fff;
    border: 1px solid var(--ink-200);
    border-radius: var(--r-md);
    box-shadow: 0 12px 32px rgba(0,0,0,0.12);
    padding: var(--space-2) 0;
    opacity: 0;
    visibility: hidden;
    transition: all var(--t-normal);
    z-index: 100;
    list-style: none;
    margin: 0;
}

.nav-item-dropdown:hover .nav-dropdown,
.nav-item-dropdown.open .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown li {
    margin: 0;
}

.nav-dropdown a {
    display: block;
    padding: 10px 20px;
    font-size: var(--fs-sm);
    color: var(--ink-700);
    text-decoration: none;
    transition: all var(--t-fast);
    white-space: nowrap;
}

.nav-dropdown a:hover {
    background: var(--ink-50);
    color: var(--brand-vintage);
    padding-left: 24px;
}

.nav-has-dropdown {
    position: relative;
    padding-right: 28px;
}

.nav-has-dropdown::before {
    content: '';
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-30%) rotate(45deg);
    width: 6px;
    height: 6px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    opacity: 0.5;
    transition: transform var(--t-fast);
}

.nav-item-dropdown:hover .nav-has-dropdown::before {
    transform: translateY(-65%) rotate(225deg);
}

/* ==========================================================================
   一级分类页布局（左侧子分类列表 + 右侧照片墙）
   ========================================================================== */
.category-page-layout {
    display: flex;
    gap: var(--space-6);
    align-items: flex-start;
}

.category-sidebar {
    position: sticky;
    top: 88px;
    flex-shrink: 0;
    width: 200px;
    background: #fff;
    border: 1px solid var(--ink-200);
    border-radius: var(--r-md);
    padding: var(--space-3) 0;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
}

.category-sidebar-title {
    padding: 0 var(--space-4) var(--space-3);
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--ink-500);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--ink-100);
    margin-bottom: var(--space-2);
}

.category-sidebar a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px var(--space-4);
    font-size: var(--fs-base);
    color: var(--ink-700);
    text-decoration: none;
    transition: all var(--t-fast);
    border-left: 3px solid transparent;
}

.category-sidebar a:hover {
    background: var(--ink-50);
    color: var(--brand-vintage);
    border-left-color: var(--brand-vintage);
}

.category-sidebar a.active {
    color: var(--brand-vintage);
    font-weight: 600;
    border-left-color: var(--brand-vintage);
    background: rgba(139, 26, 26, 0.04);
}

.category-sidebar a .cs-num {
    font-size: 12px;
    color: var(--ink-400);
    font-weight: 400;
    min-width: 20px;
}

.category-content {
    flex: 1;
    min-width: 0;
}

.category-section {
    margin-bottom: var(--space-9);
    scroll-margin-top: 88px;
}

.category-section-header {
    display: flex;
    align-items: baseline;
    gap: var(--space-3);
    padding-bottom: var(--space-3);
    margin-bottom: var(--space-5);
    border-bottom: 2px solid var(--ink-200);
}

.category-section-title {
    font-size: var(--fs-xl);
    font-weight: 800;
    color: var(--ink-900);
    margin: 0;
}

.category-section-count {
    font-size: var(--fs-sm);
    color: var(--ink-500);
}

.category-section-desc {
    font-size: var(--fs-sm);
    color: var(--ink-600);
    margin: 0;
    margin-left: auto;
    max-width: 480px;
    text-align: right;
}

/* 照片墙（复用已有 .product-photos / .product-photo 样式） */

/* 占位图（图片待补充时显示） */
.photo-placeholder {
    aspect-ratio: 4 / 3;
    border-radius: var(--r-md);
    background: repeating-linear-gradient(
        45deg,
        var(--ink-50),
        var(--ink-50) 10px,
        var(--ink-100) 10px,
        var(--ink-100) 20px
    );
    border: 2px dashed var(--ink-300);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--ink-500);
    font-size: var(--fs-sm);
    text-align: center;
    padding: var(--space-3);
}

.photo-placeholder svg {
    width: 32px;
    height: 32px;
    opacity: 0.4;
}

@media (max-width: 1024px) {
    .category-page-layout { flex-direction: column; }
    .category-sidebar {
        position: static;
        width: 100%;
        max-height: none;
        display: flex;
        flex-wrap: wrap;
        gap: 0;
        padding: var(--space-2);
    }
    .category-sidebar-title { width: 100%; border-bottom: 1px solid var(--ink-100); }
    .category-sidebar a { border-left: none; border-bottom: 2px solid transparent; }
    .category-sidebar a.active { border-left: none; border-bottom-color: var(--brand-vintage); }
    .category-section-desc { margin-left: 0; text-align: left; max-width: 100%; }
}

@media (max-width: 640px) {
    .nav-dropdown { position: static; transform: none; box-shadow: none; border: none; }
}

/* ==========================================================================
   Hero 横幅（前台实景虚化背景 + 深色渐变叠加，左暗右亮保证文字可读）
   ========================================================================== */
.hero {
    position: relative;
    min-height: 80vh;
    background:
        linear-gradient(105deg, rgba(16,12,12,0.74) 0%, rgba(20,14,14,0.58) 55%, rgba(24,16,16,0.40) 100%),
        url('../images/hero/hero-bg.jpg') center / cover no-repeat;
    color: var(--pure-white);
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 25% 35%, rgba(139,26,26,0.25) 0%, transparent 50%),
        radial-gradient(circle at 75% 65%, rgba(184,146,74,0.08) 0%, transparent 50%);
    z-index: 1;
}

/* 底部复古红细线装饰 */
.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent 0%, var(--brand-vintage) 30%, var(--gold) 50%, var(--brand-vintage) 70%, transparent 100%);
    z-index: 3;
}

.hero-inner {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: var(--space-9) 0;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 6px 14px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.25);
    color: var(--pure-white);
    font-size: var(--fs-sm);
    font-weight: 500;
    letter-spacing: 0.1em;
    border-radius: 100px;
    margin-bottom: var(--space-5);
    backdrop-filter: blur(10px);
}

.hero-eyebrow .dot {
    width: 6px;
    height: 6px;
    background: var(--gold);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.hero h1 {
    font-size: var(--fs-5xl);
    font-weight: 800;
    color: var(--pure-white);
    line-height: 1.15;
    margin-bottom: var(--space-5);
    max-width: 880px;
    letter-spacing: -0.02em;
}

.hero h1 .highlight {
    color: var(--brand-vintage-light);
    position: relative;
}

.hero h1 .highlight::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 4px;
    height: 8px;
    background: rgba(139,26,26,0.3);
    z-index: -1;
}

.hero-subtitle {
    font-size: var(--fs-lg);
    color: rgba(255,255,255,0.85);
    max-width: 720px;
    margin-bottom: var(--space-5);
    line-height: 1.6;
}

/* 主标题第二层：稍小一档，与主标题呼应 */
.hero h1 .h1-sub {
    display: block;
    font-size: 0.62em;
    font-weight: 600;
    color: rgba(255,255,255,0.88);
    margin-top: 0.5em;
    letter-spacing: 0.01em;
    line-height: 1.3;
}

/* 副标题第一行（业务范围）：加粗、高对比 */
.hero-subtitle .subtitle-strong {
    display: inline-block;
    font-weight: 700;
    font-size: 1.05em;
    color: rgba(255,255,255,0.95);
    letter-spacing: 0.02em;
}

/* 副标题第二行（服务对象）：稍小、稍暗，与第一行拉开层次 */
.hero-subtitle .subtitle-light {
    display: inline-block;
    font-size: 0.9em;
    color: rgba(255,255,255,0.65);
    margin-top: 0.4em;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.hero-cta .btn-primary {
    background: var(--pure-white);
    color: var(--brand-vintage);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.hero-cta .btn-primary:hover {
    background: var(--brand-vintage);
    color: var(--pure-white);
}

.hero-cta .btn-outline {
    color: var(--pure-white);
    border-color: rgba(255,255,255,0.3);
}

.hero-cta .btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--pure-white);
    color: var(--pure-white);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
    margin-top: var(--space-8);
    padding-top: var(--space-7);
    border-top: 1px solid rgba(255,255,255,0.15);
    max-width: 880px;
}

.hero-stat {
    text-align: left;
}

.hero-stat-num {
    font-size: var(--fs-3xl);
    font-weight: 800;
    color: var(--pure-white);
    line-height: 1;
    margin-bottom: var(--space-2);
    font-feature-settings: "tnum";
}

.hero-stat-num .unit {
    font-size: var(--fs-lg);
    color: var(--brand-vintage-light);
    margin-left: 2px;
}

.hero-stat-label {
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.7);
    line-height: 1.4;
}

.stat-num .unit {
    font-size: var(--fs-xl);
    color: var(--brand-vintage-dark);
}

/* ==========================================================================
   业务模块
   ========================================================================== */
.services {
    background: var(--ink-50);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
}

.service-card {
    background: var(--pure-white);
    padding: var(--space-6) var(--space-5);
    border-radius: var(--r-lg);
    text-align: center;
    transition: all var(--t-normal);
    border: 1px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--brand-vintage);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--t-normal);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--ink-200);
}

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

.service-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-4);
    background: var(--brand-vintage-50);
    border-radius: var(--r-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-vintage);
    transition: all var(--t-normal);
}

.service-card:hover .service-icon {
    background: var(--brand-vintage);
    color: var(--pure-white);
    transform: scale(1.05);
}

.service-icon svg {
    width: 32px;
    height: 32px;
}

.service-title {
    font-size: var(--fs-md);
    font-weight: 600;
    color: var(--ink-900);
    margin-bottom: var(--space-2);
}

.service-desc {
    font-size: var(--fs-sm);
    color: var(--ink-600);
    line-height: 1.5;
}

/* ==========================================================================
   案例分类
   ========================================================================== */
.categories {
    background: var(--pure-white);
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    justify-content: center;
    margin-bottom: var(--space-7);
}

.category-tab {
    padding: 10px 20px;
    background: var(--ink-100);
    color: var(--ink-700);
    border-radius: 100px;
    font-size: var(--fs-sm);
    font-weight: 500;
    transition: all var(--t-fast);
    cursor: pointer;
    border: 1px solid transparent;
}

.category-tab:hover {
    background: var(--brand-vintage-50);
    color: var(--brand-vintage);
}

.category-tab.active {
    background: var(--brand-vintage);
    color: var(--pure-white);
    box-shadow: var(--shadow-red);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.category-card {
    position: relative;
    background: var(--pure-white);
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--t-normal);
    border: 1px solid var(--ink-200);
    display: block;
    text-decoration: none;
    color: inherit;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--brand-vintage);
}

.category-card-image {
    aspect-ratio: 4/3;
    background: var(--ink-100);
    overflow: hidden;
    position: relative;
}

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

.category-card:hover .category-card-image img {
    transform: scale(1.06);
}

.category-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.6) 100%);
}

.category-card-badge {
    position: absolute;
    top: var(--space-3);
    left: var(--space-3);
    padding: 4px 10px;
    background: rgba(139,26,26,0.95);
    color: var(--pure-white);
    font-size: var(--fs-xs);
    font-weight: 500;
    border-radius: var(--r-sm);
    backdrop-filter: blur(10px);
}

.category-card-body {
    padding: var(--space-5);
}

.category-card-title {
    font-size: var(--fs-md);
    font-weight: 600;
    color: var(--ink-900);
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.category-card-title .arrow {
    color: var(--brand-vintage);
    transition: transform var(--t-fast);
}

.category-card:hover .category-card-title .arrow {
    transform: translateX(4px);
}

.category-card-desc {
    font-size: var(--fs-sm);
    color: var(--ink-600);
    line-height: 1.5;
}

.category-card-stat {
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px dashed var(--ink-200);
    display: flex;
    justify-content: space-between;
    font-size: var(--fs-xs);
    color: var(--ink-500);
}

/* ==========================================================================
   优势展示
   ========================================================================== */
.advantages {
    background: linear-gradient(180deg, var(--ink-50) 0%, var(--pure-white) 100%);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
}

.advantage-card {
    background: var(--pure-white);
    padding: var(--space-6);
    border-radius: var(--r-lg);
    border: 1px solid var(--ink-200);
    transition: all var(--t-normal);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--brand-vintage);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--t-normal);
}

.advantage-card:hover {
    border-color: var(--brand-vintage);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

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

.advantage-num {
    display: inline-block;
    font-size: var(--fs-sm);
    font-weight: 700;
    color: var(--brand-vintage);
    background: var(--brand-vintage-50);
    padding: 4px 10px;
    border-radius: var(--r-sm);
    margin-bottom: var(--space-4);
}

.advantage-title {
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--ink-900);
    margin-bottom: var(--space-3);
}

.advantage-desc {
    font-size: var(--fs-sm);
    color: var(--ink-600);
    line-height: 1.6;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.case-card {
    background: var(--pure-white);
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--t-normal);
    border: 1px solid var(--ink-200);
    cursor: pointer;
    display: block;
    text-decoration: none;
    color: inherit;
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.case-card-image {
    aspect-ratio: 4/3;
    background: var(--ink-100);
    overflow: hidden;
    position: relative;
}

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

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

.case-card-tag {
    position: absolute;
    bottom: var(--space-3);
    left: var(--space-3);
    padding: 4px 10px;
    background: rgba(255,255,255,0.95);
    color: var(--ink-800);
    font-size: var(--fs-xs);
    font-weight: 500;
    border-radius: var(--r-sm);
    backdrop-filter: blur(10px);
}

.case-card-body {
    padding: var(--space-5);
}

.case-card-title {
    font-size: var(--fs-md);
    font-weight: 600;
    color: var(--ink-900);
    margin-bottom: var(--space-2);
}

.case-card-desc {
    font-size: var(--fs-sm);
    color: var(--ink-600);
    line-height: 1.5;
    margin-bottom: var(--space-3);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--fs-xs);
    color: var(--ink-500);
    padding-top: var(--space-3);
    border-top: 1px solid var(--ink-100);
}

/* ==========================================================================
   最新动态
   ========================================================================== */
.news {
    background: var(--ink-50);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.news-card {
    background: var(--pure-white);
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--t-normal);
    border: 1px solid var(--ink-200);
    cursor: pointer;
    display: block;
    text-decoration: none;
    color: inherit;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.news-card-image {
    aspect-ratio: 16/9;
    background: var(--ink-100);
    overflow: hidden;
}

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

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

.news-card-body {
    padding: var(--space-5);
}

.news-card-date {
    display: inline-block;
    font-size: var(--fs-xs);
    color: var(--brand-vintage);
    font-weight: 500;
    margin-bottom: var(--space-2);
    letter-spacing: 0.05em;
}

.news-card-title {
    font-size: var(--fs-md);
    font-weight: 600;
    color: var(--ink-900);
    margin-bottom: var(--space-3);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-excerpt {
    font-size: var(--fs-sm);
    color: var(--ink-600);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==========================================================================
   CTA 区块（简洁版）
   ========================================================================== */
.cta-section {
    background:
        linear-gradient(135deg, rgba(20, 20, 24, 0.55) 0%, rgba(40, 40, 48, 0.45) 100%),
        url('../images/home/cta-bg.jpg') center/cover no-repeat;
    color: var(--pure-white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(circle at 30% 50%, rgba(255,255,255,0.08) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(184,146,74,0.12) 0%, transparent 50%);
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    color: var(--pure-white);
    font-size: var(--fs-3xl);
    margin-bottom: var(--space-4);
}

.cta-section p {
    font-size: var(--fs-md);
    color: rgba(255,255,255,0.9);
    max-width: 600px;
    margin: 0 auto var(--space-5);
}

.cta-section .btn {
    background: var(--pure-white);
    color: var(--brand-vintage);
}

.cta-section .btn:hover {
    background: var(--ink-900);
    color: var(--pure-white);
    transform: translateY(-2px);
}


/* ==========================================================================
   面包屑
   ========================================================================== */
.breadcrumb {
    background: var(--ink-50);
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--ink-200);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-sm);
    color: var(--ink-500);
    flex-wrap: wrap;
}

.breadcrumb-list a {
    color: var(--ink-600);
}

.breadcrumb-list a:hover {
    color: var(--brand-vintage);
}

.breadcrumb-list .sep {
    color: var(--ink-400);
}

.breadcrumb-list .current {
    color: var(--ink-900);
    font-weight: 500;
}

/* ==========================================================================
   页面头部
   ========================================================================== */
.page-header {
    background: linear-gradient(135deg, #1a0500 0%, var(--brand-vintage-dark) 100%);
    color: var(--pure-white);
    padding: var(--space-8) 0;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 70% 30%, rgba(139,26,26,0.3) 0%, transparent 50%);
}

.page-header .container {
    position: relative;
    z-index: 1;
}

.page-header h1 {
    color: var(--pure-white);
    font-size: var(--fs-3xl);
    margin-bottom: var(--space-2);
}

.page-header p {
    color: rgba(255,255,255,0.8);
    font-size: var(--fs-md);
    margin: 0;
}

/* ==========================================================================
   案例详情
   ========================================================================== */
.case-detail {
    padding: var(--space-7) 0;
}

.case-detail-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-7);
}

.case-gallery {
    margin-bottom: var(--space-6);
}

.case-gallery-main {
    aspect-ratio: 16/10;
    background: var(--ink-100);
    border-radius: var(--r-lg);
    overflow: hidden;
    margin-bottom: var(--space-3);
}

.case-gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-2);
}

.case-gallery-thumb {
    aspect-ratio: 1;
    background: var(--ink-100);
    border-radius: var(--r-sm);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color var(--t-fast);
}

.case-gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-gallery-thumb.active,
.case-gallery-thumb:hover {
    border-color: var(--brand-vintage);
}

.case-detail-title {
    font-size: var(--fs-2xl);
    color: var(--ink-900);
    margin-bottom: var(--space-4);
}

.case-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    padding: var(--space-4) 0;
    border-top: 1px solid var(--ink-200);
    border-bottom: 1px solid var(--ink-200);
    margin-bottom: var(--space-6);
}

.case-detail-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-sm);
    color: var(--ink-600);
}

.case-detail-meta-item strong {
    color: var(--ink-900);
    font-weight: 500;
}

.case-detail-content {
    font-size: var(--fs-md);
    line-height: 1.8;
    color: var(--ink-700);
}

.case-detail-content h3 {
    font-size: var(--fs-lg);
    color: var(--ink-900);
    margin: var(--space-6) 0 var(--space-3);
    padding-left: var(--space-3);
    border-left: 3px solid var(--brand-vintage);
}

.case-detail-content p {
    margin-bottom: var(--space-4);
}

.case-sidebar {
    position: sticky;
    top: 96px;
    align-self: start;
}

.sidebar-card {
    background: var(--pure-white);
    border: 1px solid var(--ink-200);
    border-radius: var(--r-lg);
    padding: var(--space-5);
    margin-bottom: var(--space-4);
}

.sidebar-card-title {
    font-size: var(--fs-md);
    font-weight: 600;
    color: var(--ink-900);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--ink-200);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.sidebar-card-title::before {
    content: '';
    width: 3px;
    height: 14px;
    background: var(--brand-vintage);
    border-radius: 2px;
}

.related-case {
    display: block;
    margin-bottom: var(--space-3);
    transition: transform var(--t-fast);
}

.related-case:hover {
    transform: translateX(4px);
}

.related-case-image {
    aspect-ratio: 4/3;
    background: var(--ink-100);
    border-radius: var(--r-sm);
    overflow: hidden;
    margin-bottom: var(--space-2);
}

.related-case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-case-title {
    font-size: var(--fs-sm);
    color: var(--ink-700);
    line-height: 1.4;
}

.related-case:hover .related-case-title {
    color: var(--brand-vintage);
}

/* ==========================================================================
   新闻
   ========================================================================== */
.news-list {
    padding: var(--space-7) 0;
}

.news-list-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-7);
}

.news-list-main {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.news-item {
    background: var(--pure-white);
    border: 1px solid var(--ink-200);
    border-radius: var(--r-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 280px 1fr;
    transition: all var(--t-normal);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.news-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--brand-vintage);
}

.news-item-image {
    background: var(--ink-100);
    overflow: hidden;
}

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

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

.news-item-body {
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-item-date {
    font-size: var(--fs-sm);
    color: var(--brand-vintage);
    font-weight: 500;
    margin-bottom: var(--space-3);
    letter-spacing: 0.05em;
}

.news-item-title {
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--ink-900);
    margin-bottom: var(--space-3);
    line-height: 1.4;
    transition: color var(--t-fast);
}

.news-item:hover .news-item-title {
    color: var(--brand-vintage);
}

.news-item-excerpt {
    font-size: var(--fs-sm);
    color: var(--ink-600);
    line-height: 1.6;
    margin-bottom: var(--space-3);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-item-link {
    color: var(--brand-vintage);
    font-size: var(--fs-sm);
    font-weight: 500;
    margin-top: auto;
}

.news-item-link::after {
    content: ' →';
    display: inline-block;
    transition: transform var(--t-fast);
}

.news-item:hover .news-item-link::after {
    transform: translateX(4px);
}

.news-list-sidebar {
    align-self: start;
    position: sticky;
    top: 96px;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-6);
}

.pagination-item {
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-3);
    background: var(--pure-white);
    border: 1px solid var(--ink-200);
    color: var(--ink-700);
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-sm);
    font-weight: 500;
    transition: all var(--t-fast);
    cursor: pointer;
}

.pagination-item:hover {
    border-color: var(--brand-vintage);
    color: var(--brand-vintage);
}

.pagination-item.active {
    background: var(--brand-vintage);
    color: var(--pure-white);
    border-color: var(--brand-vintage);
}

.pagination-item.disabled {
    color: var(--ink-400);
    cursor: not-allowed;
}

/* ==========================================================================
   产品服务
   ========================================================================== */
.products {
    padding: var(--space-7) 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.product-card {
    background: var(--pure-white);
    border: 1px solid var(--ink-200);
    border-radius: var(--r-lg);
    overflow: hidden;
    transition: all var(--t-normal);
    text-decoration: none;
    color: inherit;
    display: block;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--brand-vintage);
}

.product-image {
    aspect-ratio: 4/3;
    background: var(--ink-100);
    overflow: hidden;
    position: relative;
}

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

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

.product-image-tag {
    position: absolute;
    top: var(--space-3);
    left: var(--space-3);
    padding: 4px 10px;
    background: rgba(139,26,26,0.95);
    color: var(--pure-white);
    font-size: var(--fs-xs);
    font-weight: 500;
    border-radius: var(--r-sm);
}

.product-body {
    padding: var(--space-5);
}

.product-title {
    font-size: var(--fs-lg);
    font-weight: 600;
    color: var(--ink-900);
    margin-bottom: var(--space-3);
}

.product-desc {
    font-size: var(--fs-sm);
    color: var(--ink-600);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.product-features {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-4);
}

.product-features li {
    font-size: var(--fs-sm);
    color: var(--ink-700);
    padding: var(--space-2) 0;
    border-top: 1px dashed var(--ink-200);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.product-features li::before {
    content: '';
    width: 4px;
    height: 4px;
    background: var(--brand-vintage);
    border-radius: 50%;
    flex-shrink: 0;
}

/* ==========================================================================
   关于我们
   ========================================================================== */
.about {
    padding: var(--space-7) 0;
}

.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-7);
    align-items: center;
    margin-bottom: var(--space-8);
}

.about-intro-content h2 {
    font-size: var(--fs-3xl);
    margin-bottom: var(--space-4);
}

.about-intro-content .lead {
    font-size: var(--fs-md);
    color: var(--ink-700);
    margin-bottom: var(--space-4);
    line-height: 1.7;
}

.about-intro-content p {
    color: var(--ink-600);
    line-height: 1.7;
}

.about-intro-image {
    aspect-ratio: 4/3;
    background: var(--ink-100);
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.about-intro-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.about-highlight {
    text-align: center;
    padding: var(--space-6) var(--space-4);
    background: var(--brand-vintage-50);
    border-radius: var(--r-lg);
    border: 1px solid var(--brand-vintage-100);
}

.about-highlight-num {
    font-size: var(--fs-3xl);
    font-weight: 800;
    color: var(--brand-vintage);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.about-highlight-label {
    font-size: var(--fs-sm);
    color: var(--ink-700);
}

.timeline {
    margin: var(--space-7) 0;
    padding: var(--space-6) 0;
    background: var(--ink-50);
    border-radius: var(--r-lg);
}

.timeline-list {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--space-5);
}

.timeline-item {
    position: relative;
    padding-left: var(--space-7);
    padding-bottom: var(--space-5);
    border-left: 2px solid var(--brand-vintage);
    margin-left: var(--space-4);
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-year {
    position: absolute;
    left: -90px;
    top: 0;
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--brand-vintage);
    background: var(--pure-white);
    padding: 4px 8px;
    border-radius: var(--r-sm);
    box-shadow: var(--shadow-sm);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -7px;
    top: 8px;
    width: 12px;
    height: 12px;
    background: var(--brand-vintage);
    border: 3px solid var(--pure-white);
    border-radius: 50%;
    box-shadow: 0 0 0 2px var(--brand-vintage);
}

.timeline-content h4 {
    font-size: var(--fs-md);
    color: var(--ink-900);
    margin-bottom: var(--space-2);
}

.timeline-content p {
    color: var(--ink-600);
    font-size: var(--fs-sm);
    line-height: 1.6;
    margin: 0;
}

.qualifications-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-5);
    margin-top: var(--space-5);
}

.qualifications-image {
    aspect-ratio: 4/3;
    background: var(--ink-100);
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.qualifications-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.qualifications-list {
    background: var(--ink-50);
    padding: var(--space-5);
    border-radius: var(--r-lg);
}

.qualification-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    border-bottom: 1px dashed var(--ink-200);
}

.qualification-item:last-child { border-bottom: none; }

.qualification-icon {
    width: 36px;
    height: 36px;
    background: var(--brand-vintage);
    color: var(--pure-white);
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.qualification-icon svg {
    width: 18px;
    height: 18px;
}

.qualification-text h4 {
    font-size: var(--fs-sm);
    color: var(--ink-900);
    margin-bottom: 2px;
}

.qualification-text p {
    font-size: var(--fs-xs);
    color: var(--ink-500);
    margin: 0;
}

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

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

/* ==========================================================================
   联系我们
   ========================================================================== */
.contact {
    padding: var(--space-7) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-7);
}

.contact-info-card {
    background: linear-gradient(135deg, #1a0500 0%, var(--brand-vintage-dark) 100%);
    color: var(--pure-white);
    padding: var(--space-7);
    border-radius: var(--r-lg);
    position: relative;
    overflow: hidden;
}

.contact-info-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139,26,26,0.3) 0%, transparent 70%);
    border-radius: 50%;
}

.contact-info-card h2 {
    color: var(--pure-white);
    font-size: var(--fs-2xl);
    margin-bottom: var(--space-3);
    position: relative;
}

.contact-info-card .lead {
    color: rgba(255,255,255,0.8);
    margin-bottom: var(--space-6);
    position: relative;
}

.contact-info-list {
    position: relative;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4) 0;
    border-top: 1px solid rgba(255,255,255,0.15);
}

.contact-info-item:last-child { border-bottom: 1px solid rgba(255,255,255,0.15); }

.contact-info-icon {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    color: var(--pure-white);
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid rgba(255,255,255,0.2);
}

.contact-info-icon svg {
    width: 18px;
    height: 18px;
}

.contact-info-content h4 {
    color: var(--pure-white);
    font-size: var(--fs-sm);
    font-weight: 500;
    margin-bottom: 4px;
    opacity: 0.8;
}

.contact-info-content p {
    color: var(--pure-white);
    font-size: var(--fs-md);
    margin: 0;
    line-height: 1.5;
}

.contact-map {
    background: var(--ink-100);
    border-radius: var(--r-lg);
    overflow: hidden;
    min-height: 480px;
    position: relative;
}

.contact-map iframe {
    width: 100%;
    height: 100%;
    border: 0;
    min-height: 480px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: #2a2a2a;
    color: var(--ink-300);
    padding: var(--space-8) 0 var(--space-5);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: var(--space-7);
    margin-bottom: var(--space-7);
}

.footer-brand .brand-logo {
    background: var(--brand-vintage);
    margin-bottom: var(--space-3);
}

.footer-brand .brand-name {
    color: var(--pure-white);
    margin-bottom: var(--space-1);
}

.footer-brand .brand-tagline {
    color: var(--ink-400);
}

.footer-brand p {
    color: var(--ink-400);
    font-size: var(--fs-sm);
    line-height: 1.6;
    margin-top: var(--space-4);
    margin-bottom: 0;
}

.footer-title {
    color: var(--pure-white);
    font-size: var(--fs-md);
    font-weight: 600;
    margin-bottom: var(--space-4);
    position: relative;
    padding-bottom: var(--space-2);
}

.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 24px;
    height: 2px;
    background: var(--brand-vintage);
}

.footer-links li {
    margin-bottom: var(--space-3);
}

.footer-links a {
    color: var(--ink-400);
    font-size: var(--fs-sm);
    transition: all var(--t-fast);
}

.footer-links a:hover {
    color: var(--pure-white);
    padding-left: 4px;
}

.footer-contact {
    color: var(--ink-400);
    font-size: var(--fs-sm);
    line-height: 1.7;
}

.footer-contact strong {
    color: var(--ink-200);
    font-weight: 500;
}

.footer-bottom {
    border-top: 1px solid var(--ink-700);
    padding-top: var(--space-5);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--fs-xs);
    color: var(--ink-500);
}

.footer-bottom a {
    color: var(--ink-500);
}

.footer-bottom a:hover {
    color: var(--pure-white);
}

.footer-tags {
    margin-top: var(--space-5);
    padding-top: var(--space-4);
    border-top: 1px dashed var(--ink-700);
    font-size: var(--fs-xs);
    color: var(--ink-500);
    line-height: 1.7;
}

.footer-tags strong {
    color: var(--ink-300);
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1024px) {
    :root {
        --fs-5xl: 56px;
        --fs-4xl: 42px;
        --fs-3xl: 32px;
    }

    /* 平板及以下隐藏header联系方式块（Hero联系条已覆盖） */
    .header-contact { display: none; }
    .header-right { gap: 0; }

    .container { padding: 0 var(--space-4); }

    .hero h1 { font-size: var(--fs-4xl); }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
    .services-grid,
    .advantages-grid,
    .about-highlights {
        grid-template-columns: repeat(2, 1fr);
    }

    .category-grid,
    .case-grid,
    .news-grid,
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .case-detail-grid { grid-template-columns: 1fr; }
    .case-sidebar { position: static; }

    .news-list-grid { grid-template-columns: 1fr; }
    .news-list-sidebar { position: static; }

    .about-intro { grid-template-columns: 1fr; }
    .qualifications-grid { grid-template-columns: 1fr; }

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

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

@media (max-width: 768px) {
    :root {
        --fs-5xl: 40px;
        --fs-4xl: 32px;
        --fs-3xl: 26px;
        --fs-2xl: 22px;
    }

    .section { padding: var(--space-7) 0; }

    .header-inner { height: 60px; }
    .brand-logo { width: 36px; height: 36px; font-size: var(--fs-sm); }
    .brand-name { font-size: var(--fs-base); }
    .brand-tagline { display: none; }

    .nav-list { display: none; }
    .nav-list.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--pure-white);
        padding: var(--space-4);
        box-shadow: var(--shadow-md);
        border-top: 1px solid var(--ink-200);
    }
    .nav-toggle { display: flex; }

    .hero { min-height: 70vh; }
    .hero h1 { font-size: var(--fs-3xl); }
    .hero-subtitle { font-size: var(--fs-base); }
    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: var(--space-3); margin-top: var(--space-6); padding-top: var(--space-5); }
    .hero-stat-num { font-size: var(--fs-2xl); }
    .hero-stat-label { font-size: var(--fs-xs); }
    .services-grid,
    .category-grid,
    .case-grid,
    .news-grid,
    .product-grid,
    .advantages-grid,
    .about-highlights {
        grid-template-columns: 1fr;
    }

    .news-item { grid-template-columns: 1fr; }
    .news-item-image { aspect-ratio: 16/9; }

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

    .breadcrumb { padding: var(--space-3) 0; }

    .section-title h2 { font-size: var(--fs-2xl); }

    .qualifications-grid { grid-template-columns: 1fr; }
    .timeline-item { margin-left: 0; }
    .timeline-year { position: static; display: inline-block; margin-bottom: var(--space-2); }
    .timeline-item { padding-left: var(--space-5); }
}

@media (max-width: 480px) {
    .container { padding: 0 var(--space-3); }
    .hero-cta { flex-direction: column; align-items: stretch; }
    .hero-cta .btn { width: 100%; }

    /* CTA手机端 */
    .cta-contact { flex-direction: column; max-width: 100%; }
    .cta-phone-divider { width: 100%; height: 1px; margin: 0; }
    .cta-phone-num { font-size: var(--fs-xl); }
    .cta-btn { min-width: 100%; width: 100%; }
}

/* ==========================================================================
   动画
   ========================================================================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 图片懒加载 */
img[loading="lazy"] {
    background: var(--ink-100);
}

/* ==========================================================================
   公司宣传短片（关于我们页）
   ========================================================================== */
.about-video {
    max-width: 960px;
    margin: 0 auto;
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
    background: var(--ink-900);
}

.about-video video {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

/* 产品服务页 - 专项分类照片墙 */
.product-category {
    margin-bottom: var(--space-9);
}

.product-category-header {
    display: flex;
    align-items: baseline;
    gap: var(--space-3);
    padding-bottom: var(--space-3);
    margin-bottom: var(--space-5);
    border-bottom: 2px solid var(--ink-200);
}

.product-category-title {
    font-size: var(--fs-xl);
    font-weight: 800;
    color: var(--ink-900);
    margin: 0;
}

.product-category-count {
    font-size: var(--fs-sm);
    color: var(--ink-500);
}

.product-category-desc {
    font-size: var(--fs-sm);
    color: var(--ink-600);
    margin: 0;
    margin-left: auto;
    max-width: 480px;
    text-align: right;
}

.product-photos {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-3);
}

.product-photo {
    position: relative;
    border-radius: var(--r-md);
    overflow: hidden;
    background: var(--ink-100);
    aspect-ratio: 4 / 3;
}

.product-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--t-normal);
}

.product-photo:hover img {
    transform: scale(1.04);
}

.product-photo-caption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 20px 12px 10px;
    background: linear-gradient(transparent, rgba(0,0,0,0.65));
    color: var(--pure-white);
    font-size: 12px;
    opacity: 0;
    transition: opacity var(--t-fast);
}

.product-photo:hover .product-photo-caption {
    opacity: 1;
}

@media (max-width: 1024px) {
    .product-photos { grid-template-columns: repeat(3, 1fr); }
    .product-category-header { flex-wrap: wrap; }
    .product-category-desc { margin-left: 0; text-align: left; max-width: 100%; }
    .category-overview-grid { grid-template-columns: repeat(2, 1fr); }
    .subpage-body { grid-template-columns: 1fr; }
    .subpage-sidebar { position: static; }
}

@media (max-width: 640px) {
    .product-photos { grid-template-columns: repeat(2, 1fr); }
    .category-overview-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   标识标牌总览页（signage.html）- 3列卡片网格 + 悬停图片放大
   ========================================================================== */
.category-overview-intro {
    text-align: center;
    color: var(--ink-900);
    font-size: var(--fs-md);
    font-weight: 600;
    max-width: 720px;
    margin: 0 auto var(--space-7);
    line-height: 1.7;
}

.category-overview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.category-card {
    display: flex;
    flex-direction: column;
    background: var(--pure-white);
    border-radius: var(--r-lg);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: transform var(--t-normal), box-shadow var(--t-normal);
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}

.category-card-image {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--ink-100);
}

.category-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.category-card:hover .category-card-image img {
    transform: scale(1.12);
}

.category-card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.4) 100%);
    opacity: 0;
    transition: opacity var(--t-normal);
    pointer-events: none;
}

.category-card:hover .category-card-image::after {
    opacity: 1;
}

.category-card-body {
    padding: var(--space-4) var(--space-4) var(--space-5);
    text-align: center;
}

.category-card-title {
    font-size: var(--fs-lg);
    font-weight: 700;
    color: var(--ink-900);
    margin: 0 0 var(--space-2);
    position: relative;
    display: inline-block;
}

.category-card-title::after {
    content: '';
    display: block;
    width: 32px;
    height: 2px;
    background: var(--brand-vintage);
    margin: var(--space-2) auto 0;
    transition: width var(--t-normal);
}

.category-card:hover .category-card-title::after {
    width: 56px;
}

.category-card-desc {
    font-size: var(--fs-sm);
    color: var(--ink-600);
    margin: var(--space-3) 0 0;
    line-height: 1.6;
    min-height: 44px;
}

.category-card-arrow {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--brand-vintage);
    font-size: var(--fs-sm);
    margin-top: var(--space-3);
    font-weight: 600;
    transition: gap var(--t-normal);
}

.category-card:hover .category-card-arrow {
    gap: 8px;
}

/* ==========================================================================
   标识标牌子页面（scenic.html / medical.html 等 7个独立页面）
   布局：顶部标题 + 左侧子目录 + 右侧照片墙
   ========================================================================== */
.subpage-layout {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.subpage-header {
    text-align: center;
    padding-bottom: var(--space-6);
    border-bottom: 2px solid var(--ink-200);
}

.subpage-header h1 {
    font-size: var(--fs-3xl);
    font-weight: 800;
    color: var(--ink-900);
    margin: 0 0 var(--space-3);
    letter-spacing: 2px;
}

.subpage-header-subtitle {
    display: inline-block;
    color: var(--brand-vintage);
    font-size: var(--fs-sm);
    font-weight: 600;
    letter-spacing: 4px;
    margin-bottom: var(--space-4);
}

.subpage-header-desc {
    color: var(--ink-600);
    font-size: var(--fs-base);
    max-width: 720px;
    margin: 0 auto;
    line-height: 1.7;
}

.subpage-body {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: var(--space-7);
    align-items: flex-start;
}

.subpage-sidebar {
    position: sticky;
    top: 88px;
    background: var(--pure-white);
    border: 1px solid var(--ink-200);
    border-radius: var(--r-lg);
    overflow: hidden;
}

.subpage-sidebar-title {
    padding: var(--space-4);
    background: var(--ink-900);
    color: var(--pure-white);
    font-size: var(--fs-base);
    font-weight: 700;
    letter-spacing: 2px;
    text-align: center;
}

.subpage-sidebar-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.subpage-sidebar-list li {
    border-bottom: 1px solid var(--ink-100);
}

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

.subpage-sidebar-list a {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    color: var(--ink-700);
    font-size: var(--fs-sm);
    text-decoration: none;
    transition: background var(--t-fast), color var(--t-fast), padding var(--t-fast);
    white-space: nowrap;
}

/* 子分类链接：一行一项（避免窄宽度被挤成多列） */
.subpage-sidebar a[data-cs-link],
.subpage-sidebar-list a {
    display: flex;
    flex-wrap: wrap;            /* 文字超长可换行，但每条记录独占一行 */
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    color: var(--ink-700);
    font-size: var(--fs-sm);
    text-decoration: none;
    transition: background var(--t-fast), color var(--t-fast), padding var(--t-fast);
    border-bottom: 1px solid var(--ink-100);
}

.subpage-sidebar a[data-cs-link]:last-child,
.subpage-sidebar-list li:last-child > a {
    border-bottom: none;
}

.subpage-sidebar-list a::before {
    content: '';
    width: 0;
    height: 14px;
    background: var(--brand-vintage);
    transition: width var(--t-fast);
}

.subpage-sidebar-list a:hover {
    background: var(--ink-50);
    color: var(--brand-vintage);
    padding-left: var(--space-5);
}

.subpage-sidebar-list a:hover::before {
    width: 3px;
}

.subpage-sidebar-list a.active {
    background: var(--brand-vintage);
    color: var(--pure-white);
    font-weight: 600;
    padding-left: var(--space-5);
}

.subpage-sidebar-list a.active::before {
    width: 3px;
    background: var(--pure-white);
}

.subpage-content {
    min-width: 0;
}

.subpage-content .product-photos {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1024px) {
    .subpage-content .product-photos { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .subpage-content .product-photos { grid-template-columns: 1fr; }
    .subpage-header h1 { font-size: var(--fs-2xl); }
}


/* ==========================================================================
   单列大图竖排模式（推荐手册页面图用，如景区标识的 14 张图）
   与默认的 4 列网格 .product-photos 完全独立，只在显式声明 class 时生效
   ========================================================================== */
.photos-single-column {
    display: block;  /* 覆盖 .product-photos 的 grid */
    max-width: 1000px;
    margin: 0 auto;
}

.photo-single-column {
    display: block;
    margin-bottom: var(--space-4);
    border-radius: var(--r-md);
    overflow: hidden;
    background: #fff;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    aspect-ratio: auto;  /* 让图片原始比例显示，不用 4:3 裁切 */
    position: relative;   /* 为右下角暗纹水印定位 */
}

/* 防盗图暗纹：东正标识 logo 半透明水印（仅在单列大图模式显示） */
.photo-single-column::after {
    content: '';
    position: absolute;
    right: 24px;
    bottom: 24px;
    width: 96px;
    height: 96px;
    background-image: url('../images/logo-new.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.18;
    pointer-events: none;
    z-index: 2;
    /* 轻微倾斜更像水印 */
    transform: rotate(-8deg);
}

.photo-single-column:last-child {
    margin-bottom: 0;
}

.photo-single-column img {
    display: block;
    width: 100%;
    height: auto;       /* 保持原始比例 */
    object-fit: contain; /* 完整显示，不裁切 */
    transition: transform var(--t-normal);
}

.photo-single-column:hover img {
    transform: scale(1.02);
}

.photo-single-column .product-photo-caption {
    position: static;     /* 不再悬浮覆盖 */
    background: transparent;
    color: var(--ink-500);
    padding: 12px 16px 16px;
    font-size: 13px;
    text-align: center;
    opacity: 1;            /* 默认常显，不需要 hover 才显 */
    border-top: 1px solid var(--ink-100);
}

.photo-single-column:hover .product-photo-caption {
    /* 单列模式不需要 hover 高亮 caption */
    opacity: 1;
}

/* 文字暗印：右下角"东正标识"（蕾姐指定，字体端正）覆盖默认 logo 水印 */
.photo-watermark-text::after {
    content: '东正标识';
    background-image: none;
    width: auto;
    height: auto;
    right: 14px;
    bottom: 12px;
    font-family: "Microsoft YaHei", "PingFang SC", "Source Han Sans SC", "SimHei", sans-serif;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 2px;
    line-height: 1;
    color: rgba(45, 45, 45, 0.30);
    opacity: 1;
    transform: none;          /* 文字端正，不倾斜 */
    text-shadow: 0 0 1px rgba(255, 255, 255, 0.6);
    pointer-events: none;
    z-index: 2;
}

/* 乡村振兴暗印：宋体（蕾姐指定，字体端正）覆盖默认微软雅黑 */
.photo-watermark-song::after {
    font-family: "SimSun", "Songti SC", "STSong", "宋体", serif;
}

@media (max-width: 640px) {
    .photo-single-column { margin-bottom: var(--space-3); }
    .photo-single-column .product-photo-caption { padding: 10px 12px 12px; font-size: 12px; }
}

/* ==========================================================================
   客户墙（首页 OUR CLIENTS）——6列弧形错落布局，中间高、两边低
   ========================================================================== */
.client-wall {
    display: flex;
    gap: var(--space-4, 20px);
    max-width: 1100px;
    margin: 0 auto;
    align-items: flex-start;
}

.client-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-4, 20px);
    min-width: 0;
}

/* 弧形对称：中间两列最高，向两侧递减，左右镜像 */
.client-col-1 { margin-top: 70px; }
.client-col-2 { margin-top: 30px; }
.client-col-3 { margin-top: 0; }
.client-col-4 { margin-top: 0; }
.client-col-5 { margin-top: 30px; }
.client-col-6 { margin-top: 70px; }

.client-card {
    display: block;
    background: var(--pure-white, #fff);
    border-radius: var(--r-md, 10px);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    padding: 14px 10px;
    text-align: center;
    transition: box-shadow .35s ease;
    overflow: hidden;
}

.client-card:hover {
    /* 客户墙是纯造型展示，不是入口：去掉上浮与红色光晕，避免"可点"暗示 */
    transform: none;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.10);
}

.client-card img {
    display: block;
    width: 100%;
    height: auto;
    margin: 0 auto;
    border-radius: var(--r-sm, 6px);
}

/* 响应式：平板 3 列、手机 2 列，弧形失效 */
@media (max-width: 1024px) {
    .client-wall { flex-wrap: wrap; justify-content: center; }
    .client-col { flex: 0 0 calc(33.333% - 14px); }
    .client-col-1, .client-col-2, .client-col-3,
    .client-col-4, .client-col-5, .client-col-6 { margin-top: 0; }
}

@media (max-width: 640px) {
    .client-col { flex: 0 0 calc(50% - 10px); }
}

/* ==========================================================================
   公司宣传短片：视频下方元数据提示
   ========================================================================== */
.video-meta {
    text-align: center;
    margin: 14px 0 0;
    font-size: 0.88rem;
    color: var(--ink-500, #6b7280);
    letter-spacing: 0.05em;
}

/* ==========================================================================
   我们的团队（黑底黄字 + 4 张团队版式图）
   ========================================================================== */
.our-team {
    background: #0d0d0d;
    color: #fff;
}

.our-team .section-title h2 {
    color: #f4c20d;
}

.our-team .section-eyebrow {
    color: #f4c20d;
    letter-spacing: 0.25em;
}

.our-team .section-subtitle {
    color: rgba(255, 255, 255, 0.85);
}

.team-banner {
    max-width: 1100px;
    margin: 30px auto 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.team-banner img {
    width: 100%;
    display: block;
}

.team-members {
    max-width: 1200px;
    margin: 50px auto 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.team-member-row {
    margin: 0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    background: #1a1a1a;
}

.team-member-row img {
    width: 100%;
    display: block;
}

.team-member-row figcaption {
    padding: 16px 18px;
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.88rem;
    line-height: 1.6;
    border-top: 1px solid rgba(244, 194, 13, 0.2);
    text-align: center;
    background: #1a1a1a;
}

@media (max-width: 960px) {
    .team-members {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .team-members {
        grid-template-columns: 1fr;
    }
    .team-banner {
        margin-left: 16px;
        margin-right: 16px;
    }
}

/* ==========================================================================
   我们的硬实力（白底 + 4 张 2×2 网格：工厂/设备/领导关怀/团队风采）
   ========================================================================== */
.our-strength {
    background: var(--ink-50, #f8f9fa);
}

.strength-gallery {
    max-width: 1280px;
    margin: 40px auto 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.strength-item {
    margin: 0;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
    background: #fff;
    transition: transform .35s ease, box-shadow .35s ease;
}

.strength-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 36px rgba(0, 0, 0, 0.14);
}

.strength-item img {
    width: 100%;
    display: block;
}

.strength-item figcaption {
    padding: 16px 22px;
    color: var(--ink-700, #374151);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    border-top: 1px solid rgba(139, 26, 26, 0.1);
    background: #fff;
}

@media (max-width: 768px) {
    .strength-gallery {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-left: 16px;
        margin-right: 16px;
    }
}

/* ==========================================================================
   首页 8 大场景卡片墙（大图模式，与上方产品图标卡形成视觉分层）
   文字直接叠在实拍图上：场景名 + 描述 + 案例数角标
   ========================================================================== */
.scene-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
}

.scene-card {
    position: relative;
    display: block;
    text-decoration: none;
    color: inherit;
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--ink-200);
    transition: all var(--t-normal);
    background: var(--pure-white);
}

.scene-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--brand-vintage);
}

.scene-card-image {
    position: relative;
    aspect-ratio: 4/3;
    background: var(--ink-100);
    overflow: hidden;
}

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

.scene-card:hover .scene-card-image img {
    transform: scale(1.06);
}

.scene-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.02) 30%, rgba(0,0,0,0.72) 100%);
}

.scene-card-badge {
    position: absolute;
    top: var(--space-3);
    left: var(--space-3);
    padding: 4px 10px;
    background: rgba(139,26,26,0.95);
    color: var(--pure-white);
    font-size: var(--fs-xs);
    font-weight: 500;
    border-radius: var(--r-sm);
    backdrop-filter: blur(10px);
    z-index: 2;
}

.scene-card-info {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: var(--space-4) var(--space-5) var(--space-5);
    color: var(--pure-white);
    z-index: 2;
}

.scene-card-title {
    font-size: var(--fs-lg);
    font-weight: 600;
    margin-bottom: 4px;
    letter-spacing: 0.02em;
}

.scene-card-desc {
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.85);
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 响应式：平板 2 列，手机 1 列 */
@media (max-width: 1024px) {
    .scene-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .scene-grid { grid-template-columns: 1fr; }
    .scene-card-title { font-size: var(--fs-md); }
}

/* ==========================================================================
   合作流程 5 步（steps-grid）：5 列均匀一排，解决 4+1 断行
   ========================================================================== */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-5);
}

.steps-grid .advantage-card {
    text-align: center;
    padding: var(--space-6) var(--space-5);
}

.steps-grid .advantage-num {
    margin: 0 auto var(--space-3);
}

/* 响应式：平板 3 列（5 步 = 3+2），手机 1 列 */
@media (max-width: 1024px) {
    .steps-grid { grid-template-columns: repeat(3, 1fr); }
    .steps-grid .advantage-card:last-child { grid-column: 2 / 3; }
}

@media (max-width: 640px) {
    .steps-grid { grid-template-columns: 1fr; }
    .steps-grid .advantage-card:last-child { grid-column: auto; }
}

/* ==========================================================================
   联系我们页 · 在线留言表单
   ========================================================================== */
.contact-form-card {
    background: var(--pure-white);
    border: 1px solid var(--ink-200);
    border-radius: var(--r-lg);
    padding: var(--space-7);
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-sm);
}

.contact-form-card h2 {
    font-size: var(--fs-2xl);
    font-weight: 600;
    color: var(--ink-900);
    margin-bottom: var(--space-2);
}

.contact-form-intro {
    font-size: var(--fs-sm);
    color: var(--ink-600);
    margin-bottom: var(--space-6);
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.contact-form .form-group {
    margin-bottom: var(--space-4);
}

.contact-form label {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--ink-700);
    margin-bottom: 6px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--ink-300);
    border-radius: var(--r-md);
    font-size: var(--fs-base);
    font-family: inherit;
    color: var(--ink-900);
    box-sizing: border-box;
    background: var(--pure-white);
    transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--brand-vintage);
    box-shadow: 0 0 0 3px rgba(139,26,26,0.08);
}

.contact-form textarea {
    resize: vertical;
    min-height: 96px;
}

.form-tip {
    font-size: var(--fs-sm);
    color: var(--ink-500);
    margin-top: var(--space-3);
}

@media (max-width: 640px) {
    .contact-form .form-row { grid-template-columns: 1fr; }
    .contact-map { min-height: 320px; }
    .contact-map iframe { min-height: 320px; }
}