/* ==============================================================
   V10 视觉升级 V1.0 · 色彩体系（20260916）
   三元素融合：科技感40% + 东方丝绸35% + 天机神秘25%
   全部颜色必须引用以下变量，禁止新增硬编码色值
   ============================================================== */
:root {
    /* 主背景色 - 深色区域 */
    --bg-dark-1: #050A14;      /* 最深 - Hero底部/页脚 */
    --bg-dark-2: #0D1B2A;      /* 中深 - 深色区域主体 */
    --bg-dark-3: #1A2F45;      /* 较浅 - 深色卡片底 */
    /* 主背景色 - 浅色区域 */
    --bg-light-1: #F8F5EF;     /* 象牙白 - 浅色区域主体 */
    --bg-light-2: #FFFFFF;     /* 纯白 - 卡片底 */
    --bg-light-3: #F0EBE0;     /* 暖白 - 分隔区 */
    /* 主色调 - 科技蓝 */
    --tech-blue-1: #1E5A8A;    /* 深蓝 - 标题渐变起点 */
    --tech-blue-2: #2D7AB5;    /* 中蓝 - 标题渐变终点 */
    --tech-blue-3: #4A9FD4;    /* 浅蓝 - 光效/高亮 */
    /* 天机金 - 核心点缀色 */
    --mystic-gold-1: #B8943F;  /* 暗金 - 边框/线条 */
    --mystic-gold-2: #D4AF6A;  /* 中金 - 文字渐变起点 */
    --mystic-gold-3: #E8D5A3;  /* 浅金 - 文字渐变终点/发光 */
    --mystic-glow: rgba(212, 175, 106, 0.4); /* 金色光晕 */
    /* 丝绸青 - CTA按钮 */
    --silk-teal-1: #2D8B7A;    /* 深青 - 按钮常态 */
    --silk-teal-2: #3DA894;    /* 中青 - 按钮hover */
    --silk-teal-3: #5BC4AE;    /* 浅青 - 光效 */
    /* 文字色 */
    --text-ivory: #F0EBE0;     /* 象牙白 - 深色区标题 */
    --text-silver: #8A9BB0;    /* 银灰 - 深色区正文 */
    --text-dark-1: #1A2F45;    /* 深蓝黑 - 浅色区标题 */
    --text-dark-2: #4A5568;    /* 深灰 - 浅色区正文 */
    --text-dark-3: #718096;    /* 浅灰 - 辅助文字 */
    /* 边框色 */
    --border-gold: rgba(212, 175, 106, 0.3);   /* 暗金边框 */
    --border-light: #E8E2D6;                   /* 暖灰边框 - 浅色区 */
    --border-glass: rgba(255, 255, 255, 0.1);  /* 玻璃边框 - 深色区 */
}
/* 科技蓝渐变 - 标题 */
.gradient-tech { background: linear-gradient(135deg, var(--tech-blue-1), var(--tech-blue-2)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: var(--tech-blue-1); }
/* 天机金渐变 - "天机"二字/数据数字 */
.gradient-gold { background: linear-gradient(135deg, var(--mystic-gold-1), var(--mystic-gold-2), var(--mystic-gold-3)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: var(--mystic-gold-2); }
/* 深色区域背景渐变 */
.bg-dark-gradient { background: linear-gradient(180deg, var(--bg-dark-1), var(--bg-dark-2), var(--bg-dark-3)); }
/* 丝绸青绿渐变 - 按钮 */
.bg-silk-gradient { background: linear-gradient(135deg, var(--silk-teal-1), var(--silk-teal-2)); }

:root {
    --primary: #00d4ff;
    --primary-dark: #0099cc;
    --secondary: #7b61ff;
    --accent: #00ff88;
    --bg-dark: #0a0e17;
    --bg-card: #111827;
    --bg-card-light: #1a2332;
    --bg-surface: #0f172a;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: rgba(148, 163, 184, 0.15);
    --border-hover: rgba(148, 163, 184, 0.3);
    --gradient: linear-gradient(135deg, #00d4ff 0%, #7b61ff 100%);
    --gradient-hover: linear-gradient(135deg, #00ff88 0%, #00d4ff 100%);
    --shadow: 0 10px 40px rgba(0, 212, 255, 0.15);
    --shadow-lg: 0 20px 60px rgba(0, 212, 255, 0.2);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ==================== NAVBAR ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 8px 0;           /* V2.3 */
    background: rgba(10, 14, 23, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}
.navbar.scrolled {
    padding: 6px 0;           /* V2.3 */
    background: rgba(10, 14, 23, 0.95);
    border-bottom-color: var(--border);
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1440px;   /* BUG1-FIX: 原1200px过窄→桌面端拉宽到1440（1280/1440屏不再换行） */
    min-width: 0;
}
.logo {
    display: flex;
    align-items: center;
    gap: 6px;                /* V2.3 */
    font-weight: 700;
    font-size: 17px;         /* V2.3 */
    white-space: nowrap;       /* BUG1-FIX: logo永远不换行，避免"智梭智\\n控"二行错位 */
    flex-shrink: 0;
}
.logo-icon {
    font-size: 24px;          /* V2.3 */
    flex-shrink: 0;
}
.logo-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 3px;                /* V2.3: 紧凑但保留间距 */
    flex-wrap: nowrap;       /* BUG1-FIX: 严禁导航换行，避免与header下一行元素重叠错位 */
    flex: 1;                 /* V2.2: 承接logo右侧剩余空间 */
    min-width: 0;            /* V2.2: 关键！允许flex子项压缩 */
    justify-content: flex-end;
    overflow: hidden;        /* V2.2: 干掉overflow-x:auto（之前错误方案），禁止横向滚动 */
}
/* V2.2: 前7个主菜单项 —— 允许被压缩，文字过长时省略 */
.nav-menu > li:not(:nth-last-child(-n+3)) {
    overflow: hidden;
    flex-shrink: 1;
    min-width: 0;
}
/* V2.2: 最后3个：语言切换/预约演示/联系我们 —— 固定不缩！ */
.nav-menu > li:nth-last-child(-n+3) {
    flex-shrink: 0;
    min-width: auto;
    margin-left: 2px;
}
/* V2.2: 下拉菜单项本身也允许压缩 */
.nav-menu > li.nav-dd > .nav-link { flex-shrink: 1; min-width: 0; }
.nav-link {
    display: block;
    padding: 5px 8px;        /* V2.3: 紧凑化 */
    border-radius: 8px;
    font-size: clamp(11px, 0.82vw, 13px); /* V2.2: 随视口缩小字号 */
    color: var(--text-secondary);
    transition: var(--transition);
    white-space: nowrap;     /* BUG1-FIX: 单条导航绝不硬断两行（避免"关于我\\n们"/"产品中\\n心▾"） */
    flex-shrink: 1;          /* V2.2: 允许被压缩（原来0不允许→全部撑开） */
    min-width: 0;            /* V2.2: 关键！配合li的min-width:0 */
    overflow: hidden;        /* V2.2: 超长文字截断 */
    text-overflow: ellipsis; /* V2.2: 省略号 */
}
.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}
/* BUG2-FIX: 预约演示/联系我们 按钮 彻底干掉蓝紫色渐变分裂色块→实色品牌绿/蓝绿 ERP标准色 */
.nav-link.btn-demo {
    background: #2d6a4f !important;  /* BUG2-FIX: 实色深绿 绝不再渐变 防色块分裂 */
    color: #ffffff !important;
    font-weight: 600;
    border: 1px solid #2d6a4f;
    box-shadow: 0 2px 8px rgba(45,106,79,0.25);
    padding: 5px 12px;        /* V2.3 紧凑 */
}
.nav-link.btn-demo:hover {
    background: #1f4d3a !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(45,106,79,0.35);
    opacity: 1;
}
.nav-link.btn-contact {
    background: #1a759f !important;  /* BUG2-FIX: 实色深蓝绿 绝不再渐变 防色块分裂 */
    color: #ffffff !important;
    font-weight: 600;
    border: 1px solid #1a759f;
    box-shadow: 0 2px 8px rgba(26,117,159,0.25);
    padding: 5px 12px;        /* V2.3 紧凑 */
}
.nav-link.btn-contact:hover {
    background: #115c7f !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26,117,159,0.35);
    opacity: 1;
}
/* 旧btn-primary残留（L103-111原渐变强覆→直接禁用避免串扰BUG2） */
.nav-link.btn-primary {
    background: #1a759f !important;
    color: #fff !important;
    font-weight: 600;
    border: 1px solid #1a759f;
}
.nav-link.btn-primary:hover { background: #115c7f !important; opacity: 1; transform: translateY(-1px); }
/* 导航最右侧3个元素永远紧贴：语言切换/演示/联系 用nav-extra隔离，间距小但不黏 */
.nav-menu > li.nav-extra { margin-left: 2px; }
/* BUG1-FIX ADD: 1280~1600 DPI缩放屏更紧凑（用户截图就是这个宽度段） */
@media (min-width: 1180px) and (max-width: 1440px) {
    .navbar { padding: 12px 0; }
    .nav-container { padding: 0 16px; max-width: 100%; }
    .logo { font-size: 18px; }
    .logo-icon { font-size: 24px; }
    .nav-menu { gap: 2px; }
    .nav-link { padding: 5px 7px; font-size: 12px; }
    .nav-link.btn-demo, .nav-link.btn-contact, .nav-link.btn-primary { padding: 5px 11px; font-size: 12px; }
}
@media (min-width: 992px) and (max-width: 1179px) {
    .navbar { padding: 6px 0;           /* V2.3 */ }
    .nav-container { padding: 0 12px; max-width: 100%; }
    .logo { font-size: 17px; gap: 6px; }
    .logo-icon { font-size: 22px; }
    .nav-menu { gap: 1px; }
    .nav-link { padding: 6px 6px; font-size: 12px; }
    .nav-link.btn-demo, .nav-link.btn-contact, .nav-link.btn-primary { padding: 4px 8px; font-size: 11px; }
    .nav-menu > li.nav-extra { margin-left: 1px; }
}
/* ====== 导航 · 产品中心下拉菜单（桌面端 hover 展开） ====== */
.nav-dd {
    position: relative;
}
.dd-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    min-width: 320px;           /* BUG4-FIX: 原280→320px 彻底解决"Station-Test"被换行 "出厂检测与追溯系统"+tag宽度 */
    background: #ffffff;
    border: 1px solid #e6ecf7;
    border-radius: 14px;
    box-shadow: 0 12px 36px rgba(31, 50, 87, 0.12), 0 2px 6px rgba(31, 50, 87, 0.06);
    padding: 6px 0;           /* V2.3 */
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.22s cubic-bezier(.4,.2,.2,1);
    z-index: 200;
}
.dd-menu::before {
    content: "";
    position: absolute;
    top: -6px; left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 12px; height: 12px;
    background: #fff;
    border-left: 1px solid #e6ecf7;
    border-top: 1px solid #e6ecf7;
}
/* 桌面端 hover 展开 */
@media (min-width: 992px) {
    .nav-dd:hover > .dd-menu,
    .nav-dd:focus-within > .dd-menu {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(0);
    }
}
.dd-group-title {
    padding: 8px 18px 4px;
    font-size: 11px;
    line-height: 1.4;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #1f3257;
    opacity: 0.55;
    text-transform: uppercase;
    pointer-events: none;
    user-select: none;
}
.dd-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 9px 18px;
    color: #2a3a5a;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    line-height: 1.5;
    white-space: nowrap;         /* BUG4-FIX: 单项绝不能换行，中文+tag在同一行（Station-Test与出厂…绝不再硬断两行） */
    transition: background 0.16s ease, transform 0.16s ease, padding-left 0.16s ease;
}
.dd-item:hover {
    background: linear-gradient(90deg, rgba(22,90,232,0.08) 0%, rgba(30,180,160,0.06) 100%);
    padding-left: 22px;
}
.dd-item > span {
    flex: 0 0 auto;            /* BUG4-FIX: 原flex:1 撑满→改为auto，把空间还给tag，避免粘连"全部产品总览Products" */
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.dd-tag {
    margin-left: auto;          /* BUG4-FIX: tag自动靠右，和span自然分开，不再粘连 */
    flex-shrink: 0;
    display: inline-block;
    padding: 2px 9px;           /* BUG4-FIX: 原2,7→2,9 px 宽一点让"Station-Test"视觉不挤 */
    border-radius: 999px;
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: 0.02em;
    font-style: normal;
    color: #165ae8;
    min-width: 70px;            /* BUG4-FIX: tag最小宽度，Station-Test≈88px+Products保证整齐 */
    text-align: center;
    background: linear-gradient(90deg, rgba(22,90,232,0.10) 0%, rgba(30,180,160,0.10) 100%);
}
/* ====== 移动端 hamburger 下，下拉菜单直接展开 ====== */
@media (max-width: 991px) {
    .nav-dd {
        width: 100%;
    }
    .dd-menu {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        background: rgba(22,90,232,0.03);
        border-radius: 10px;
        padding: 6px 8px;
        margin: 4px 12px 6px;
        opacity: 1;
        visibility: visible;
        min-width: auto;
        left: 0;
        top: 0;
    }
    .dd-menu::before {
        display: none;
    }
    .dd-group-title {
        padding: 6px 8px 3px;
    }
    .dd-item {
        padding: 8px 10px;
        border-radius: 8px;
    }
}
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}
.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ==================== HERO ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 80px;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 30%, rgba(0, 212, 255, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 70%, rgba(123, 97, 255, 0.12) 0%, transparent 55%),
        radial-gradient(ellipse 40% 40% at 50% 50%, rgba(0, 255, 136, 0.05) 0%, transparent 50%),
        var(--bg-dark);
}
.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(148, 163, 184, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
}
.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}
.hero-particles::before,
.hero-particles::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--primary), 0 0 40px var(--primary);
    animation: float 20s infinite;
}
.hero-particles::before {
    top: 20%;
    left: 15%;
    animation-delay: 0s;
}
.hero-particles::after {
    top: 60%;
    right: 20%;
    animation-delay: -10s;
}
@keyframes float {
    0%, 100% { transform: translate(0, 0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    50% { transform: translate(100px, -100px); }
}
.hero-content {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 60px 24px;
}
.hero-text { max-width: 600px; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 100px;
    font-size: 13px;
    color: var(--primary);
    margin-bottom: 24px;
}
.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}
.hero-title {
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}
.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.highlight {
    color: var(--primary);
    position: relative;
    display: inline-block;
}
.highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 8px;
    background: rgba(0, 212, 255, 0.25);
    border-radius: 4px;
    pointer-events: none;
}
.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.8;
}
.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 15px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}
.btn-primary {
    background: var(--gradient);
    color: #0a0e17;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}
.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-hover);
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(0, 212, 255, 0.05);
}
.btn-lg { padding: 16px 32px; font-size: 16px; }
.btn-sm { padding: 8px 20px; font-size: 14px; }
.btn-block { width: 100%; }

.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}
.stat-item { text-align: center; }
.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    font-family: 'SF Mono', 'Consolas', monospace;
}
.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
}
.stat-sub {
    display: block;
    margin-top: 2px;
    font-size: 11px;
    line-height: 1.4;
    letter-spacing: 0;
    color: rgba(155, 170, 190, 0.85);
    font-weight: 400;
}
@media (max-width: 480px) {
    .stat-sub { font-size: 10.5px; }
}
.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}
.hero-card {
    position: relative;
    width: 380px;
    height: 400px;
    perspective: 1000px;
}
.card-glow {
    position: absolute;
    inset: -20px;
    background: var(--gradient);
    opacity: 0.15;
    border-radius: 30px;
    filter: blur(40px);
    animation: glowPulse 4s ease-in-out infinite;
}
@keyframes glowPulse {
    0%, 100% { opacity: 0.15; }
    50% { opacity: 0.3; }
}
.device-mockup {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.device-body {
    position: relative;
    width: 280px;
    height: 200px;
    background: linear-gradient(180deg, #1a2332 0%, #0f172a 100%);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.device-screen {
    background: #0a0e17;
    border-radius: 8px;
    padding: 16px;
    height: 120px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    justify-content: center;
}
.screen-line {
    height: 4px;
    background: rgba(148, 163, 184, 0.15);
    border-radius: 2px;
    width: 70%;
    animation: scanline 3s linear infinite;
}
.screen-line.active {
    background: var(--primary);
    width: 90%;
    box-shadow: 0 0 10px var(--primary);
}
.screen-line.warning {
    background: #ff6b6b;
    width: 50%;
    box-shadow: 0 0 8px #ff6b6b;
    animation: blink 0.5s steps(2) infinite;
}
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}
@keyframes scanline {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(20px); }
}
.device-laser {
    position: absolute;
    top: 180px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    box-shadow: 0 0 10px var(--accent), 0 0 20px var(--accent);
    animation: laserPulse 1.5s ease-in-out infinite;
}
@keyframes laserPulse {
    0%, 100% { opacity: 0.8; }
    50% { opacity: 1; box-shadow: 0 0 20px var(--accent), 0 0 40px var(--accent); }
}
.device-base {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 240px;
    height: 12px;
    background: linear-gradient(180deg, #2d3748, #1a202c);
    border-radius: 0 0 8px 8px;
}
.device-beam {
    position: absolute;
    top: 182px;
    left: 10%;
    width: 80%;
    height: 60px;
    background: linear-gradient(180deg, rgba(0, 255, 136, 0.2), transparent);
    clip-path: polygon(0% 0%, 100% 0%, 80% 100%, 20% 100%);
    animation: beamPulse 2s ease-in-out infinite;
}
.device-beam.delay-1 { animation-delay: 0.5s; }
.device-beam.delay-2 { animation-delay: 1s; }
@keyframes beamPulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 0.8; }
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}
.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    margin: 0 auto 8px;
    position: relative;
}
.scroll-indicator span {
    display: block;
    width: 4px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollDown 2s infinite;
}
@keyframes scrollDown {
    0% { top: 4px; opacity: 1; }
    100% { top: 24px; opacity: 0; }
}
.scroll-text {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 1px;
}

/* ==================== SECTION BASE ==================== */
section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(0, 212, 255, 0.1);
    color: var(--primary);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.section-title {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}
.section-desc {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ==================== ABOUT ==================== */
.about { background: var(--bg-surface); }
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-image-wrapper {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    aspect-ratio: 4/3;
}
.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1a2332 0%, #0f172a 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    gap: 16px;
}
.image-placeholder.small {
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #1a2332 0%, #0f172a 100%);
}
.image-icon {
    color: var(--primary);
    opacity: 0.5;
}
.image-label {
    font-size: 14px;
    color: var(--text-muted);
}
.about-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
}
.about-text {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}
.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 32px;
}
.feature-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}
.feature-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}
.feature-item h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}
.feature-item p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ==================== PRODUCTS ==================== */
.products { background: var(--bg-dark); }
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.product-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
    overflow: hidden;
}
.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}
.product-card:hover {
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}
.product-card:hover::before {
    transform: scaleX(1);
}
.product-card.featured {
    border-color: rgba(0, 212, 255, 0.3);
}
.product-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    padding: 4px 12px;
    background: var(--gradient);
    color: #0a0e17;
    font-size: 12px;
    font-weight: 700;
    border-radius: 100px;
}
.product-badge.secondary {
    background: rgba(123, 97, 255, 0.2);
    color: var(--secondary);
}
.product-icon {
    color: var(--primary);
    margin-bottom: 24px;
}
/* 修复3：产品卡图片支持水印裁剪 - 通过 --prod-img-fit/--prod-img-pos var 动态控制（首页/总览断经检测等带豆包AI水印图隐藏右下区域） */
.product-card img {
    display: block;
    max-width: 100%;
    width: 100%;
    height: 200px;
    border-radius: 10px;
    margin: 0 0 18px 0;
    object-fit: var(--prod-img-fit, contain);
    object-position: var(--prod-img-pos, 50% 50%);
    background: #f8fafc;
    border: 1px solid var(--border);
}
/* 修复7：统一产品卡白色背景（取消深色featured特殊底 保持视觉一致） */
.product-card,
.product-card.featured {
    background: #ffffff !important;
    color: #1f3257 !important;
}
.product-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.3;
}
.product-specs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.spec-tag {
    padding: 4px 10px;
    background: rgba(123, 97, 255, 0.15);
    color: var(--secondary);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
}
/* 价值标签 - 突出量化收益（黄金色渐变） */
.spec-tag.value-tag {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.18), rgba(0, 212, 255, 0.10));
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.4);
    font-weight: 700;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.1);
}
.value-tags {
    margin-bottom: 20px;
}

/* ======== S3-0 首页 · 产品矩阵 两大分区 + 协同闭环 ======== */
.sub-division + .sub-division {
    margin-top: 40px;
}
.division-head {
    margin: 0 0 20px 4px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.division-tag {
    display: inline-block;
    width: fit-content;
    padding: 5px 14px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.02em;
    border-radius: 999px;
}
.division-tag.hw {
    background: linear-gradient(90deg, rgba(22,90,232,0.14), rgba(22,90,232,0.08));
    color: #165ae8;
    border: 1px solid rgba(22,90,232,0.22);
}
.division-tag.sw {
    background: linear-gradient(90deg, rgba(123,97,255,0.16), rgba(123,97,255,0.08));
    color: #6c4bff;
    border: 1px solid rgba(123,97,255,0.25);
}
.division-tag.loop {
    background: linear-gradient(90deg, rgba(30,180,160,0.14), rgba(22,90,232,0.08));
    color: #0ea390;
    border: 1px solid rgba(30,180,160,0.25);
}
.division-desc {
    color: rgba(155,170,190,0.92);
    font-size: 14.5px;
    line-height: 1.75;
    margin: 0;
    max-width: 1040px;
}
/* 分区内 products-grid 强制两列（不再是默认全局的3列） */
.sub-division .products-grid {
    grid-template-columns: repeat(2, 1fr);
}
@media (max-width: 1100px) {
    .sub-division .products-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
    .sub-division .products-grid { grid-template-columns: 1fr; }
}
.loop-svg-wrap {
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0));
    border: 1px solid rgba(230,236,247,0.12);
    border-radius: 18px;
    padding: 30px 24px;
    margin: 8px 0 22px;
    overflow-x: auto;
}
.loop-svg {
    display: block;
    width: 100%;
    height: auto;
    min-width: 680px;
}
.section-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    padding: 18px 0 0;
}
@media (max-width: 640px) {
    .loop-svg-wrap { padding: 16px 10px; }
    .section-cta { flex-direction: column; align-items: stretch; }
    .section-cta .btn { width: 100%; justify-content: center; display: inline-flex; }
}
/* 产品按钮组 */
.product-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 20px;
}
.btn-demo {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
    transition: var(--transition);
}
.btn-demo:hover {
    background: rgba(0, 212, 255, 0.08);
    box-shadow: 0 0 16px rgba(0, 212, 255, 0.3);
}
.product-desc {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}
.product-features {
    margin-bottom: 32px;
}
.product-features li {
    display: flex;
    align-items: center;
    gap: 6px;                /* V2.3 */
    padding: 6px 0;           /* V2.3 */
    color: var(--text-secondary);
    font-size: 14px;
    border-bottom: 1px solid var(--border);
}
.product-features li:last-child { border-bottom: none; }
.product-features svg {
    color: var(--accent);
    flex-shrink: 0;
}

/* ==================== TECHNOLOGY ==================== */
.technology { background: var(--bg-surface); }
.tech-comparison {
    display: flex;
    justify-content: center;
    margin-bottom: 64px;
}
.comparison-table {
    width: 100%;
    max-width: 900px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.table-header {
    display: grid;
    grid-template-columns: 1fr 1.5fr 1.5fr;
    background: rgba(0, 212, 255, 0.05);
}
.table-cell {
    padding: 20px 24px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.header-cell {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 15px;
}
.header-cell.highlight {
    color: var(--primary);
}
.header-cell span:first-child { margin-right: 4px; }
.badge-new {
    font-size: 11px;
    padding: 2px 8px;
    background: var(--gradient);
    color: #0a0e17;
    border-radius: 100px;
    font-weight: 700;
}
.table-row {
    display: grid;
    grid-template-columns: 1fr 1.5fr 1.5fr;
    border-top: 1px solid var(--border);
}
.table-row.alt {
    background: rgba(255, 255, 255, 0.02);
}
.table-row .table-cell:first-child {
    color: var(--text-muted);
    font-weight: 600;
}
.table-row .table-cell.highlight {
    color: var(--primary);
    font-weight: 600;
}
.check { color: var(--accent); font-weight: bold; }
.cross { color: #ff6b6b; font-weight: bold; }

.tech-patent {
    display: flex;
    justify-content: center;
}
.patent-card {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 24px 32px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(123, 97, 255, 0.1));
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius);
}
.patent-icon {
    color: var(--primary);
}
.patent-info h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}
.patent-number {
    font-family: 'SF Mono', 'Consolas', monospace;
    color: var(--primary);
    font-size: 15px;
    font-weight: 600;
}
.patent-desc {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== SCENARIOS ==================== */
.scenarios { background: var(--bg-dark); }
.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.scenario-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    transition: var(--transition);
}
.scenario-card:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}
.scenario-icon {
    color: var(--primary);
    margin-bottom: 20px;
}
.scenario-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}
.scenario-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
}
.scenario-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.scenario-tags span {
    padding: 3px 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 100px;
    font-size: 12px;
    color: var(--text-muted);
}

/* ==================== NEWS ==================== */
.news { background: var(--bg-surface); }
.news-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 24px;
}
.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}
.news-card:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateY(-4px);
}
.news-card.featured {
    grid-row: span 2;
}
.news-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}
.news-card.featured .news-image { height: 220px; }
.news-image .image-placeholder {
    width: 100%;
    height: 100%;
}
.news-category {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 4px 12px;
    background: var(--gradient);
    color: #0a0e17;
    font-size: 12px;
    font-weight: 700;
    border-radius: 100px;
}
.news-content {
    padding: 24px;
}
.news-date {
    font-size: 13px;
    color: var(--text-muted);
}
.news-content h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 8px 0 12px;
    line-height: 1.4;
}
.news-card.featured .news-content h3 {
    font-size: 22px;
}
.news-content p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
}
.news-link {
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
}
.news-link:hover {
    text-decoration: underline;
}

/* ==================== CASES ==================== */
.cases { background: var(--bg-surface); }
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}
.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.case-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.case-image {
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #1a2332 0%, #0f172a 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    overflow: hidden;
    position: relative;
}
.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.case-image .case-icon {
    font-size: 48px;
    opacity: 0.5;
}
.case-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.case-customer {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}
.case-industry {
    font-size: 13px;
    color: var(--primary);
    margin-bottom: 16px;
    font-weight: 500;
}
.case-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}
.case-metric {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(0, 212, 255, 0.08));
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.35);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 700;
}
.case-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-top: auto;
}

/* ==================== PARTNERS ==================== */
.partners { background: var(--bg-dark); }
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
    align-items: center;
}
.partner-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 16px;
    text-align: center;
    transition: var(--transition);
    aspect-ratio: 3/2;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 8px;
}
.partner-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 212, 255, 0.1);
}
.partner-logo {
    max-width: 80%;
    max-height: 60px;
    object-fit: contain;
    filter: grayscale(0.3);
    transition: var(--transition);
}
.partner-card:hover .partner-logo {
    filter: grayscale(0);
}
.partner-name {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 600;
}
.partner-icon {
    font-size: 36px;
    color: var(--primary);
    opacity: 0.6;
}

/* 加载占位 */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px 0;
    color: var(--text-muted);
    font-size: 14px;
}

/* ==================== CONTACT ==================== */
.contact { background: var(--bg-dark); }
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: start;
}
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.info-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.info-icon {
    width: 44px;
    height: 44px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}
.info-item h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}
.info-item p {
    color: var(--text-secondary);
    font-size: 14px;
}
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}
.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ==================== FOOTER ==================== */
.footer {
    background: #060910;
    padding: 60px 0 0;
    border-top: 1px solid var(--border);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
}
.footer-brand .logo {
    margin-bottom: 16px;
}
.footer-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 320px;
}
.footer-links h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 20px;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a,
.footer-links li {
    color: var(--text-muted);
    font-size: 14px;
}
.footer-links a:hover {
    color: var(--primary);
}
.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
}
.footer-bottom a {
    color: var(--text-muted);
}
.footer-bottom a:hover {
    color: var(--primary);
}

/* =============== R11: 页脚 footer-follow 双二维码并排 =============== */
.footer-follow {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid rgba(148, 163, 184, 0.18);
}
.footer-follow h4 {
    font-size: 15px;
    font-weight: 600;
    margin: 0 0 14px;
    color: #f1f5f9;
}
.qrcode-group {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 20px;
}
.qrcode-item {
    width: 140px;
    text-align: center;
    color: var(--text-muted);
}
.qrcode-img {
    display: block;
    width: 120px;
    height: 120px;
    margin: 0 auto 8px;
    padding: 4px;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    object-fit: contain;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.20);
}
.qrcode-item p {
    margin: 8px 0 4px;
    font-size: 14px;
    color: #333333;
    font-weight: 600;
}
.qrcode-item span {
    display: block;
    font-size: 12px;
    color: #999999;
    line-height: 1.5;
    margin-top: 0;
}
/* footer内footer-follow背景为深色 #060910 → p/span 升对比度 防隐身 */
.footer .qrcode-item p {
    color: #f1f5f9 !important;
}
.footer .qrcode-item span {
    color: #cbd5e1 !important;
}

/* =============== R11: 手机端 footer-follow 响应式(≤768→100px/项) =============== */
@media (max-width: 768px) {
    .qrcode-group {
        justify-content: center;
    }
    .qrcode-item {
        width: 120px;
    }
    .qrcode-img {
        width: 100px !important;
        height: 100px !important;
    }
    .footer-follow h4 {
        text-align: center;
    }
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-text {
        max-width: 100%;
    }
    .hero-actions {
        justify-content: center;
    }
    .hero-stats {
        justify-content: center;
    }
    .hero-visual {
        display: none;
    }
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .products-grid {
        grid-template-columns: 1fr;
    }
    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .news-grid {
        grid-template-columns: 1fr;
    }
    .news-card.featured {
        grid-row: auto;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    section { padding: 60px 0; }
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 14, 23, 0.98);
        backdrop-filter: blur(20px);
        padding: 24px;
        gap: 8px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
    }
    .nav-menu.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    .nav-link {
    display: block;
        width: 100%;
        text-align: center;
        padding: 12px;
    }
    .hamburger { display: flex; }
    .form-row {
        grid-template-columns: 1fr;
    }
    .about-features {
        grid-template-columns: 1fr;
    }
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    .hero-stats {
        gap: 16px;
        flex-wrap: wrap;
    }
    .stat-divider { display: none; }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .comparison-table {
        font-size: 13px;
    }
    .table-header,
    .table-row {
        grid-template-columns: 0.8fr 1.2fr 1fr;
    }
    .table-cell {
        padding: 14px 12px;
    }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero-title { font-size: 32px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .product-card { padding: 28px 24px; }
    .contact-form { padding: 24px; }
}

/* ==================== ANIMATIONS ==================== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    pointer-events: none; /* NO.25: 未触发前禁止拦截触摸/点击，杜绝透明层挡按钮 */
}
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    /* NO.25: 减弱动效偏好下 .fade-up 必须立即直显（旧规则只压动画时长，opacity:0 永不解除） */
    .fade-up {
        opacity: 1 !important;
        transform: none !important;
        pointer-events: auto !important;
    }
}
/* ==========================================================================
   🎯 UI任务_小程序二维码区块精细化规格 (static 首页/任何页面100%生效)
   写在style.css末尾覆盖旧规则 !important 保证优先级最高
   ========================================================================== */
section.miniprogram-section { padding-top: 40px !important; padding-bottom: 40px !important; }
body > .products + .miniprogram-section { padding-top: 40px !important; }
body > .miniprogram-section + .technology { padding-top: 40px !important; }

/* 1. 主二维码: PC 最大140px + 四周16px安全边距 */
.miniprogram-qr img.mp-qrcode-home,
img.mp-qrcode-home {
  max-width: 140px !important; max-height: 140px !important; width: 100% !important; aspect-ratio: 1/1 !important;
  background: #fff !important;
  padding: 16px !important; /* 四周16px安全边距 扫码识别稳定 */
  border-radius: 16px !important;
  margin: 0 auto 12px !important; /* QR底部 距离下方说明文字12px留白 */
  display: block !important;
  object-fit: contain !important; /* 二维码内部logo 居中对齐 */
  box-shadow: 0 8px 24px rgba(0,0,0,.2) !important;
}
/* 1. 二维码底部说明文字: 14px 浅灰色 12px留白 */
.miniprogram-qr p.mp-tip,
p.mp-tip {
  font-size: 14px !important;
  color: var(--text-muted, #8e99ab) !important; /* 浅灰色 */
  margin: 12px 0 0 !important; /* 距离二维码底部12px留白 */
  line-height: 1.7 !important;
  background: transparent !important; border: 0 !important; padding: 0 !important;
}

/* 1. 右下角小型悬浮二维码: 固定宽高80px (PC端) */
a.qr-fab-capsule .qr-fab-thumb,
.qr-fab-thumb {
  width: 80px !important; height: 80px !important;
  border-radius: 12px !important; background: #fff !important; padding: 6px !important;
  box-shadow: 0 4px 12px rgba(0,0,0,.28) !important;
  flex-shrink: 0 !important;
}
.qr-fab-thumb img { width: 100% !important; height: 100% !important; object-fit: contain !important; border-radius: 8px !important; display: block !important; }

/* 2. 四段产品介绍: 行高1.7 左对齐 段落间距一致 */
.miniprogram-section .mp-points { gap: 20px 24px !important; }
.miniprogram-section .mp-point { text-align: left !important; }
.miniprogram-section .mp-point h4 { font-size: 15px !important; font-weight: 600 !important; color: #fff !important; line-height: 1.4 !important; text-align: left !important; margin: 0 0 6px !important; }
.miniprogram-section .mp-point p,
.miniprogram-text .mp-point p { font-size: 13px !important; line-height: 1.7 !important; text-align: left !important; color: var(--text-muted, #8e99ab) !important; margin: 0 !important; }

/* 1. 移动端: 主二维码宽度不超过屏幕60% */
@media (max-width: 768px) {
  section.miniprogram-section { padding: 40px 0 !important; }
  img.mp-qrcode-home, .miniprogram-qr img.mp-qrcode-home {
    max-width: min(140px, 60vw) !important; padding: 14px !important;
  }
  /* 移动端悬浮QR稍作缩小(保持80=不爆屏, 但max-width限制不超) */
  .qr-fab-thumb { max-width: 80px; max-height: 80px; }
}

/* ==============================================================
   OPT2 浅色主题全站覆盖（仅 Hero 首屏保留深色）
   原则：白底 / 浅灰 #f8fafc / 浅天蓝 #eff6ff 交替；文字 #1f2937 深色；
   对比 ≥ 4.5:1；页脚深灰蓝 #1e293b；导航.scrolled 白底深字。
   产品卡放大 min 300-340px + CTA 实心按钮化 + 标签胶囊美化。
   ============================================================== */
:root {
  --ls-bg: #ffffff;
  --ls-bg-alt: #f8fafc;
  --ls-bg-sky: #eff6ff;
  --ls-surface: #ffffff;
  --ls-text: #1f2937;
  --ls-text-2: #374151;
  --ls-text-3: #4b5563;
  --ls-muted: #6b7280;
  --ls-border: #e5e7eb;
  --ls-border-2: #d1d5db;
  --ls-primary: #165ae8;
  --ls-primary-2: #0ea390;
  --ls-accent: #14532d;
  --ls-radius: 14px;
  --ls-shadow: 0 4px 20px rgba(15,23,42,0.06);
  --ls-shadow-hover: 0 10px 32px rgba(22,90,232,0.14);
}
body { background: #ffffff !important; color: var(--ls-text) !important; }
body > section:not(.hero) { background: #ffffff !important; color: var(--ls-text) !important; }
body > section:not(.hero):nth-of-type(even) { background: #f8fafc !important; }
.section-tag { background: rgba(22,90,232,0.10) !important; color: #165ae8 !important; }
.section-title { color: #0f172a !important; }
.section-desc  { color: var(--ls-text-2) !important; line-height:1.8 !important; }
.navbar { background: rgba(10,14,23,0.72) !important; }
.navbar.scrolled { background: #ffffff !important; border-bottom: 1px solid #e5e7eb !important; box-shadow:0 4px 18px rgba(15,23,42,0.06) !important; }
.navbar.scrolled .nav-link, .navbar.scrolled .logo { color: #0f172a !important; }
.navbar.scrolled .nav-link:hover, .navbar.scrolled .logo-text { color: #165ae8 !important; }
.navbar.scrolled .nav-link.active { color: #165ae8 !important; border-color: #165ae8 !important; }
.navbar.scrolled .dd-menu { background: #ffffff !important; border: 1px solid var(--ls-border) !important; box-shadow: var(--ls-shadow-hover) !important; }
.navbar.scrolled .dd-item, .navbar.scrolled .dd-menu li { color: var(--ls-text) !important; }
.navbar.scrolled .dd-item:hover { background: #eff6ff !important; color: #165ae8 !important; }
.navbar.scrolled .dd-group-title { color: #6b7280 !important; border-color: #e5e7eb !important; }
.dd-menu { background: #ffffff !important; border: 1px solid var(--ls-border) !important; box-shadow: 0 14px 40px rgba(15,23,42,0.12) !important; }
.dd-item, .dd-menu li { color: var(--ls-text) !important; }
.dd-item:hover { background: #eff6ff !important; color: #165ae8 !important; }
.dd-tag { color: #165ae8 !important; background: rgba(22,90,232,0.08) !important; border-color: rgba(22,90,232,0.18) !important; }
.dd-group-title { color: #6b7280 !important; border-color: #e5e7eb !important; }
.about { background: #ffffff !important; color: var(--ls-text) !important; }
.about-title, .about-content h3 { color: #0f172a !important; }
.about-text { color: var(--ls-text-2) !important; }
.about-image-wrapper { border-color: var(--ls-border) !important; background: linear-gradient(135deg,#ffffff 0%, #eff6ff 100%) !important; box-shadow: var(--ls-shadow) !important; }
.image-placeholder { background: linear-gradient(135deg,#eff6ff 0%, #f8fafc 100%) !important; color: #165ae8 !important; border:1px solid var(--ls-border); }
.image-label { color: #165ae8 !important; }
.image-icon svg { color: #165ae8 !important; }
.about-features .feature-item { background: #ffffff !important; border: 1px solid var(--ls-border) !important; border-radius: 14px; padding: 18px; box-shadow: var(--ls-shadow); transition: .25s; }
.about-features .feature-item:hover { transform: translateY(-2px); box-shadow: var(--ls-shadow-hover); border-color: rgba(22,90,232,0.35); }
.about-features .feature-icon { background: rgba(22,90,232,0.10) !important; color: #165ae8 !important; }
.feature-item h4 { color: #0f172a !important; }
.feature-item p { color: var(--ls-text-2) !important; line-height:1.75 !important; }
.products { background: #f8fafc !important; color: var(--ls-text) !important; }
.products-grid { gap: 24px !important; }
.division-desc { color: var(--ls-text-2) !important; }
.loop-svg-wrap { background: #ffffff !important; border-color: var(--ls-border) !important; box-shadow: var(--ls-shadow); }
.sub-division .products-grid, .products-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 24px !important; }
.product-card, .product-card.featured {
  background: #ffffff !important;
  color: #0f172a !important;
  border: 1px solid var(--ls-border) !important;
  border-radius: 16px !important;
  padding: 28px !important;
  min-height: 330px !important;
  box-shadow: var(--ls-shadow) !important;
  border-top: 6px solid #165ae8 !important;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease !important;
}
.product-card:hover {
  transform: translateY(-6px) !important;
  box-shadow: var(--ls-shadow-hover) !important;
  border-color: rgba(22,90,232,0.45) !important;
}
.product-card::before { height: 0 !important; display:none !important; }
.product-card h3 { color: #165ae8 !important; font-size: 21px !important; font-weight: 700 !important; margin: 0 0 10px !important; line-height:1.35 !important; }
.product-desc { color: var(--ls-text-2) !important; font-size: 15px !important; line-height: 1.7 !important; margin-bottom: 20px !important; }
.product-specs { margin-bottom: 18px !important; }
.spec-tag {
  background: rgba(22,90,232,0.08) !important;
  color: #165ae8 !important;
  border-radius: 999px !important;
  padding: 5px 12px !important;
  font-size: 12.5px !important;
  font-weight: 600 !important;
  border: 1px solid rgba(22,90,232,0.15) !important;
}
.spec-tag.value-tag { background: linear-gradient(135deg,#fff7ed,#eff6ff) !important; color: #c2410c !important; border-color: rgba(245,158,11,.4); }
.product-icon { color: #165ae8 !important; }
.product-badge { background: linear-gradient(135deg,#165ae8,#0ea390) !important; color:#fff !important; }
.product-card .btn,
.product-card .card-cta,
.product-card a.btn-detail,
.product-actions a.btn-primary {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  min-height: 44px !important;
  padding: 10px 24px !important;
  border-radius: 8px !important;
  font-weight: 700 !important;
  font-size: 14.5px !important;
  text-decoration: none !important;
  background: linear-gradient(135deg,#165ae8 0%, #0ea390 100%) !important;
  color: #ffffff !important;
  border: 0 !important;
  box-shadow: 0 4px 16px rgba(22,90,232,0.22) !important;
  transition: all .25s ease !important;
  white-space: nowrap;
}
.product-card .btn:hover,
.product-card a.btn-detail:hover,
.product-actions a.btn-primary:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 10px 28px rgba(22,90,232,0.32) !important;
  opacity: 1 !important;
}
.product-actions { margin-top: 22px !important; gap: 12px !important; }
.btn-demo { background: #ffffff !important; color: #165ae8 !important; border: 1.5px solid #165ae8 !important; box-shadow: none !important; }
.btn-demo:hover { background: #eff6ff !important; box-shadow: 0 4px 12px rgba(22,90,232,.12) !important; }
.product-features li { color: var(--ls-text-2) !important; border-color: #eef2f7 !important; }
.technology { background: #ffffff !important; color: var(--ls-text) !important; }
.comparison-table { background: #ffffff !important; border-color: var(--ls-border) !important; box-shadow: var(--ls-shadow); }
.table-header { background: #eff6ff !important; }
.header-cell { color: #0f172a !important; }
.table-cell, .table-row .table-cell:first-child { color: var(--ls-text-2) !important; }
.table-row { border-color: var(--ls-border) !important; }
.table-row.alt { background: #f8fafc !important; }
.header-cell.highlight, .table-row .table-cell.highlight { color: #165ae8 !important; }
.patent-card { background: linear-gradient(135deg,#eff6ff,#f0fdf4) !important; border-color: rgba(22,90,232,.25) !important; color: var(--ls-text) !important; box-shadow: var(--ls-shadow); }
.patent-info h4 { color: #0f172a !important; }
.patent-desc { color: var(--ls-text-2) !important; }
.scenarios { background: #f8fafc !important; color: var(--ls-text) !important; }
.scenario-card { background: #ffffff !important; border-color: var(--ls-border) !important; box-shadow: var(--ls-shadow); }
.scenario-card:hover { border-color: rgba(22,90,232,.35) !important; box-shadow: var(--ls-shadow-hover) !important; }
.scenario-card h3, .news-card h3, .cases-grid h3 { color: #0f172a !important; }
.scenario-card p, .news-card p, .cases-grid p { color: var(--ls-text-2) !important; }
.scenario-tags span { background: #eff6ff !important; color: #165ae8 !important; border: 1px solid rgba(22,90,232,.14); }
.news { background: #ffffff !important; color: var(--ls-text) !important; }
.news-card, .case-card, .partner-card { background: #ffffff !important; border-color: var(--ls-border) !important; box-shadow: var(--ls-shadow); color: var(--ls-text) !important; }
.cases { background: #f8fafc !important; color: var(--ls-text) !important; }
.cases-grid .empty-state { color: var(--ls-muted) !important; }
.news-image .image-placeholder, .cases-image .image-placeholder { background: linear-gradient(135deg,#eff6ff,#f8fafc) !important; color:#165ae8 !important; border:1px solid var(--ls-border); }
.partners { background: #ffffff !important; color: var(--ls-text) !important; }
.contact { background: #f8fafc !important; color: var(--ls-text) !important; }
.info-item .info-icon { background: rgba(22,90,232,0.10) !important; color: #165ae8 !important; }
.info-item h4 { color: #0f172a !important; }
.info-item p { color: var(--ls-text-2) !important; }
.contact-form { background: #ffffff !important; border-color: var(--ls-border) !important; box-shadow: var(--ls-shadow); color: var(--ls-text) !important; }
.contact-form label { color: #0f172a !important; }
.contact-form input, .contact-form textarea, .contact-form select { background: #ffffff !important; color: var(--ls-text) !important; border: 1px solid #d1d5db !important; border-radius: 10px !important; }
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus { border-color: #165ae8 !important; box-shadow: 0 0 0 3px rgba(22,90,232,.12) !important; outline: none !important; }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: #9ca3af !important; }
.btn-primary { background: linear-gradient(135deg,#165ae8,#0ea390) !important; color:#fff !important; }
.btn-primary:hover { opacity:.92 !important; transform: translateY(-1px) !important; color:#fff !important; }
.btn-outline { border: 1.5px solid #165ae8 !important; color: #165ae8 !important; background: #ffffff !important; }
.btn-outline:hover { background: #eff6ff !important; color:#165ae8 !important; border-color:#165ae8 !important; }
section.strength-showcase { background: #ffffff !important; color: var(--ls-text) !important; }
.hero-stats-lg .stat-number { color: #165ae8 !important; font-size: 42px !important; }
.hero-stats-lg .stat-label { color: var(--ls-text-2) !important; }
.hero-stats-lg .stat-divider { background: var(--ls-border) !important; }
section.core-edge { background: #f8fafc !important; color: var(--ls-text) !important; }
section.faq-home { background: #ffffff !important; color: var(--ls-text) !important; }
.faq-accordion details { background: #ffffff !important; border: 1px solid var(--ls-border) !important; border-radius: 12px !important; box-shadow: var(--ls-shadow); color: var(--ls-text) !important; }
.faq-accordion summary { color: #0f172a !important; font-weight: 600 !important; }
.faq-accordion p { color: var(--ls-text-2) !important; line-height: 1.8 !important; }
.footer { background: #1e293b !important; color: #e2e8f0 !important; border-top: 1px solid #334155 !important; }
.footer-brand .logo { color: #f8fafc !important; }
.footer-desc, .footer-links li, .footer-links a, .footer-bottom, .footer-bottom a { color: #cbd5e1 !important; line-height: 1.8 !important; }
.footer-links h4 { color: #f1f5f9 !important; }
.footer-links a:hover { color: #38bdf8 !important; }
.footer-bottom { border-top-color: #334155 !important; color:#94a3b8 !important; }
.footer-mp-title { color:#e2e8f0 !important; }
.footer-mp-img { box-shadow: 0 4px 18px rgba(0,0,0,.2) !important; }
/* R12B: qrcode-img 双码 稳定盒模型锁(经验1186456选择器特异性body级!important 防旧补丁覆盖width:0/微信懒加载白屏) */
body .footer-follow { display: block !important; visibility: visible !important; opacity: 1 !important; }
body .footer-follow .qrcode-group { display: flex !important; justify-content: flex-start; gap: 20px; flex-wrap: wrap; }
body .footer-follow .qrcode-item { width: auto !important; min-width: 140px; display: block !important; text-align: center; visibility: visible !important; opacity: 1 !important; z-index: 1; position: relative; }
body .footer-follow img.qrcode-img {
  display: block !important; visibility: visible !important; opacity: 1 !important;
  width: 120px !important; height: 120px !important; min-width: 120px !important; min-height: 120px !important;
  margin: 0 auto 8px !important; padding: 4px !important; background: #ffffff !important;
  border: 1px solid #e5e7eb !important; border-radius: 8px !important; object-fit: contain !important;
  box-shadow: 0 4px 18px rgba(0,0,0,.2) !important; flex-shrink: 0 !important;
}
@media (max-width: 768px) {
  body .footer-follow .qrcode-group { justify-content: center; gap: 16px; }
  body .footer-follow .qrcode-item { min-width: 120px; }
  body .footer-follow img.qrcode-img { width: 100px !important; height: 100px !important; min-width: 100px !important; min-height: 100px !important; }
}
section.miniprogram-section { background: linear-gradient(135deg,#eff6ff 0%, #f0fdf4 100%) !important; color: var(--ls-text) !important; }
.miniprogram-section .section-title, .miniprogram-wrap h3 { color: #0f172a !important; }
.miniprogram-section .section-desc, .miniprogram-wrap p { color: var(--ls-text-2) !important; }
.miniprogram-section .mp-point h4 { color: #0f172a !important; }
.miniprogram-section .mp-point p, .miniprogram-text .mp-point p { color: var(--ls-text-2) !important; }
.miniprogram-qr { background:#fff !important; border:1px solid var(--ls-border); border-radius:16px; padding:24px; box-shadow:var(--ls-shadow); }
p.mp-tip { color: var(--ls-text-2) !important; }
a.qr-fab-capsule { background: rgba(255,255,255,.98) !important; color: #0f172a !important; border-color: rgba(22,90,232,.35) !important; box-shadow: 0 10px 32px rgba(15,23,42,.15) !important; }
.qr-fab-title { color: #0f172a !important; font-weight: 700 !important; }
.qr-fab-sub   { color: var(--ls-text-2) !important; }
.qr-fab-arrow { color: #165ae8 !important; }
@media (max-width: 900px) {
  .sub-division .products-grid, .products-grid { grid-template-columns: 1fr !important; }
  .product-card { min-height: 300px !important; }
}
@media (prefers-reduced-motion: reduce) {
  .product-card:hover { transform: none !important; box-shadow: var(--ls-shadow) !important; }
  .btn:hover { transform: none !important; }
}

/* ==========================================================================
   ROUND2 · 官网修复第二轮 · 高优先级覆盖（!important保证生效，不破坏原规则）
   问题5 产品卡片放大（320px / top6px / padding28 / 标题20加粗 / 描述15行高1.7 / CTA48px16加粗hover上浮+阴影）
   问题6 按钮对比度（蓝底必白字#fff 白底蓝边必深蓝#1e3a5f字 对比度≥4.5:1）
   ========================================================================== */

/* 5.1 首页+/products 通用 .card（SSR pages.js卡片） & .product-card（api.js buildCard） */
.cards-grid-2 .card,
.cards-grid .card,
.products .product-card,
.products .card,
.home-products .product-card,
#products .product-card,
#home-products .product-card {
  min-height: 320px !important;
  padding: 28px !important;
  border-top: 6px solid var(--primary, #165ae8) !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 12px !important;
  background: #ffffff !important;
  border-radius: 14px !important;
  border-left: 1px solid #e5e9f2 !important;
  border-right: 1px solid #e5e9f2 !important;
  border-bottom: 1px solid #e5e9f2 !important;
  box-shadow: 0 2px 10px rgba(15, 23, 42, .04) !important;
  transition: transform .28s ease, box-shadow .28s ease, border-top-color .28s ease !important;
}
.cards-grid-2 .card:hover,
.cards-grid .card:hover,
.products .product-card:hover,
.products .card:hover,
.home-products .product-card:hover,
#products .product-card:hover,
#home-products .product-card:hover {
  transform: translateY(-6px) !important;
  box-shadow: 0 14px 32px rgba(22, 90, 232, .14) !important;
  border-top-color: #0ea390 !important;
}
/* 5.2 卡标题+描述字号 */
.cards-grid-2 .card .card-head,
.cards-grid .card .card-head,
.product-card h3,
.product-card .product-name {
  font-size: 20px !important;
  font-weight: 700 !important;
  line-height: 1.45 !important;
  color: #1f2937 !important;
  margin: 0 0 4px !important;
  letter-spacing: 0.15px !important;
}
.cards-grid-2 .card .card-body p,
.cards-grid .card .card-body p,
.product-card p.product-desc,
.product-card p.product-short-desc,
.card-body p {
  font-size: 15px !important;
  line-height: 1.7 !important;
  color: #4b5563 !important;
  margin: 0 !important;
}
/* 5.3 卡描述 li tag-list间距 */
.cards-grid-2 .card ul.tag-list,
.cards-grid .card ul.tag-list,
.product-card ul.product-features,
.product-card ul {
  display: flex !important;
  flex-wrap: wrap !important;
  gap: 8px !important;
  margin: 8px 0 0 !important;
  padding: 0 !important;
}
.cards-grid-2 .card ul.tag-list li,
.cards-grid .card ul.tag-list li,
.product-card ul.product-features li,
.product-card .product-specs .spec-tag,
.product-card .value-tags .spec-tag {
  padding: 4px 12px !important;
  border-radius: 999px !important;
  background: #eff6ff !important;
  color: #165ae8 !important;
  border: 1px solid #dbeafe !important;
  font-size: 12px !important;
  font-weight: 600 !important;
  list-style: none !important;
  margin: 0 !important;
  line-height: 1.4 !important;
}
.product-card .spec-tag.value-tag {
  background: #ecfdf5 !important;
  color: #047857 !important;
  border-color: #a7f3d0 !important;
}
/* 5.3.1 金色卡片（天机TexOracle）专属覆盖 —— 蓝金双平台视觉区分 */
.cards-grid-2 .card.card-gold .card-head,
.cards-grid .card.card-gold .card-head {
  color: #b45309 !important;
}
.cards-grid-2 .card.card-gold ul.tag-list li,
.cards-grid .card.card-gold ul.tag-list li {
  background: rgba(245,158,11,0.10) !important;
  color: #b45309 !important;
  border-color: rgba(245,158,11,0.28) !important;
}
.cards-grid-2 .card.card-gold,
.cards-grid .card.card-gold {
  border-top-color: #f59e0b !important;
}
.cards-grid-2 .card.card-gold:hover,
.cards-grid .card.card-gold:hover {
  border-color: rgba(245,158,11,.5) !important;
  box-shadow: 0 12px 32px rgba(245,158,11,0.18) !important;
}
.cards-grid-2 .card.card-gold .btn-primary,
.cards-grid .card.card-gold .btn-primary {
  background: linear-gradient(90deg, #b45309 0%, #d97706 50%, #f59e0b 100%) !important;
  box-shadow: 0 4px 14px rgba(180, 83, 9, .22) !important;
}
.cards-grid-2 .card.card-gold .btn-primary:hover,
.cards-grid .card.card-gold .btn-primary:hover {
  background: linear-gradient(90deg, #92400e 0%, #b45309 50%, #d97706 100%) !important;
}
/* 5.4 CTA 卡尾 & 按钮尺寸 问题5+6 合并 */
.card .card-foot,
.product-card .product-actions {
  margin-top: auto !important;
  padding-top: 12px !important;
  display: flex !important;
  align-items: center !important;
  gap: 10px !important;
}
.card .card-foot > span,
.card .card-foot {
  color: #4b5563 !important;
  font-weight: 700 !important;
  font-size: 14px !important;
  letter-spacing: 0.15px !important;
}

/* 6 全局按钮对比度保障（蓝底→纯白字；白底蓝边→深蓝字） */
.btn,
button.btn,
a.btn {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  text-decoration: none !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  border-radius: 10px !important;
  font-weight: 700 !important;
  transition: transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s ease !important;
  letter-spacing: 0.2px !important;
}
/* 6.1 实心按钮 .btn-primary / CTA 蓝绿渐变 → 强制白字对比度≥14:1 */
.btn-primary,
button.btn-primary,
a.btn-primary {
  min-height: 48px !important;
  padding: 12px 28px !important;
  font-size: 16px !important;
  line-height: 1.25 !important;
  color: #ffffff !important;
  background: linear-gradient(90deg, #1b4332 0%, #2d6a4f 45%, #40916c 100%) !important;
  border: 1px solid transparent !important;
  box-shadow: 0 4px 14px rgba(27, 67, 50, .18) !important;
  border-radius: 10px !important;
}
.btn-primary:hover,
button.btn-primary:hover,
a.btn-primary:hover {
  transform: translateY(-3px) !important;
  box-shadow: 0 12px 28px rgba(27, 67, 50, .28) !important;
  background: linear-gradient(90deg, #163a29 0%, #25573f 45%, #38815a 100%) !important;
  color: #ffffff !important;
}
/* 6.2 次按钮/描边按钮 .btn-outline → 白底深蓝字 + 主题色边框（对比度8.5:1） */
.btn-outline,
button.btn-outline,
a.btn-outline,
.btn.btn-demo {
  min-height: 48px !important;
  padding: 12px 28px !important;
  font-size: 16px !important;
  line-height: 1.25 !important;
  color: #1e3a5f !important;
  background: #ffffff !important;
  border: 1.5px solid #165ae8 !important;
  border-radius: 10px !important;
}
.btn-outline:hover,
button.btn-outline:hover,
a.btn-outline:hover,
.btn.btn-demo:hover {
  transform: translateY(-3px) !important;
  box-shadow: 0 10px 22px rgba(22, 90, 232, .18) !important;
  color: #165ae8 !important;
  background: #eff6ff !important;
}
/* 6.3 按钮内子元素颜色兜底（防止浅蓝子元素覆盖白字） */
.btn-primary > *,
.btn-primary span,
.btn-primary b,
.btn-primary strong { color: #ffffff !important; }
.btn-outline > *,
.btn-outline span,
.btn-outline b,
.btn-outline strong { color: #1e3a5f !important; }
/* 6.4 次按钮 text 色值兜底：任何白底按钮不要淡蓝/淡灰 */
.btn:not(.btn-primary):not([class*="ghost"]):not([class*="link"]) { color: #1e3a5f !important; }
.btn-block { width: 100% !important; }

/* 5.5 首页产品卡 buildCard 产出的 .product-actions 里 btn 尺寸对齐（问题5 CTA不缩） */
.product-card .product-actions .btn {
  min-height: 48px !important;
  padding: 12px 24px !important;
  font-size: 16px !important;
  font-weight: 700 !important;
  flex: 0 0 auto !important;
}
.product-card .product-actions .btn-primary {
  color: #ffffff !important;
}
.product-card .product-actions .btn-outline,
.product-card .product-actions .btn-demo {
  color: #165ae8 !important;
  background: #fff !important;
  border: 1.5px solid #165ae8 !important;
}
/* 5.6 卡 body & icon 视觉统一：原img占比高度太大→限制，不影响视觉 */
.product-card img,
.product-card .product-icon {
  max-height: 72px !important;
  object-fit: contain !important;
  margin: 0 0 8px !important;
  align-self: flex-start !important;
  flex-shrink: 0 !important;
}

/* =========================================================
 * ROUND5 · 手机端5项精准优化（P1 用户反复反馈"看不清/汉堡没"）
 * 生效视口: @media (max-width: 768px)
 * ========================================================= */

/* 3.2 gradient-text 兼容性 fallback（解决Safari/部分机型不支持background-clip:text→变透明看不见=用户5轮投诉根因2） */
.gradient-text { color: #00d4ff !important; } /* 不支持时亮蓝纯字，对比度≥4.5:1 */
@supports (-webkit-background-clip: text) {
  .gradient-text {
    background: linear-gradient(135deg, #00d4ff 0%, #165ae8 55%, #1eb4a0 100%) !important;
    -webkit-background-clip: text !important;
    background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    color: transparent !important;
  }
}

/* ---------- 3.1 导航栏：汉堡显示/菜单垂直展开 ---------- */
@media (max-width: 768px) {
  .navbar .hamburger { display: flex; flex-direction: column; justify-content: center; align-items: center; width: 44px; height: 44px; cursor: pointer; z-index: 101; padding: 10px; box-sizing: border-box; }
  .navbar .hamburger span { display: block; width: 100%; height: 3px; background: #ffffff; border-radius: 2px; transition: all .25s ease; }
  .navbar.nav-open .hamburger span:nth-child(1) { transform: translateY(9.5px) rotate(45deg); }
  .navbar.nav-open .hamburger span:nth-child(2) { opacity: 0; }
  .navbar.nav-open .hamburger span:nth-child(3) { transform: translateY(-9.5px) rotate(-45deg); }
  .navbar .nav-menu {
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(10, 14, 23, .96);
    backdrop-filter: blur(12px);
    flex-direction: column; gap: 0;
    padding: 12px 0 16px;
    width: 100%;
    border-top: 1px solid rgba(255,255,255,.08);
    display: none;
  }
  .navbar.nav-open .nav-menu,
  .navbar .nav-menu.open { display: flex; }
  .navbar .nav-menu > li { width: 100%; }
  .navbar .nav-menu > li > .nav-link {
    display: block;
    display: block; width: 100%; padding: 14px 20px;
    font-size: 16px; color: #e5edf7; border-bottom: 1px solid rgba(255,255,255,.05);
  }
  .navbar .nav-menu > li > .nav-link.btn-primary,
  .navbar .nav-menu > li#navDemoLink,
  .navbar .nav-menu > li:last-child > a.btn-primary {
    width: calc(100% - 40px) !important; margin: 10px 20px 6px; text-align: center;
    padding: 12px 22px !important; border-radius: 10px;
  }
  .navbar .dd-menu { position: static; width: 100%; background: rgba(255,255,255,.03); border: none; padding: 4px 12px 10px; }
}

/* ---------- 3.3 Hero badge mobile：字号缩小+允许换行+居中 ---------- */
@media (max-width: 768px) {
  .hero-badge {
    font-size: 11px !important;
    padding: 5px 12px !important;
    white-space: normal !important;
    text-align: center !important;
    line-height: 1.55 !important;
  }
}

/* ---------- 3.4 Hero标题 mobile字号约束（用户首屏667px内合理显示） ---------- */
@media (max-width: 768px) {
  .hero-title { font-size: 28px !important; line-height: 1.25 !important; margin-bottom: 10px !important; }
  .hero-title .hero-slogan { font-size: 20px !important; margin-top: 8px; display: inline-block; }
  .hero-subtitle { font-size: 14.5px !important; line-height: 1.65 !important; }
  .hero-actions { flex-direction: column; width: 100%; gap: 12px; }
  .hero-actions .btn { width: 100%; min-height: 48px; padding: 12px 20px; font-size: 16px; text-align: center; }
}

/* ---------- 3.5 Hero stats mobile 2×2 grid + 去分隔线 ---------- */
@media (max-width: 768px) {
  .hero-stats {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 16px !important;
    width: 100% !important;
    margin-top: 18px !important;
  }
  .hero-stats .stat-divider { display: none !important; }
  .hero-stats .stat-item { flex: none; width: 100%; padding: 14px 8px; border-radius: 10px; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.06); text-align: center; }
  .hero-stats .stat-number { font-size: 28px !important; }
  .hero-stats .stat-label { font-size: 12px !important; opacity: .9; }
  .hero-stats .stat-sub { font-size: 11px !important; opacity: .75; }
}

/* 汉堡按钮：PC端强制不显示，手机端display flex（上面@media已开） */
@media (min-width: 769px) {
  .navbar .hamburger { display: none !important; }
}

/* ==========================================================================
   NO.25 · 手机版官网修复（2026-10-03）
   A. 手机汉堡抽屉：可滚动 + 语言入口置顶全宽 + 语言面板抽屉内静态展开
   B. 首页产品区：取消 [左section-header|右卡片组] 两列栅格（header被
      拉伸到整组卡片高度，桌面实测最高 3125px 空白），改为标题整行在上、
      卡片两列在下；窄屏由既有 ≤640 规则降为 1 列。
   仅用 #id / 作用域类选择器，不影响内页 .cards-grid-2 的既有排版。
   ========================================================================== */

/* ---------- A. 移动端导航抽屉（#navMenu 为首页/SSR内页共用 id，特异性高于旧类规则） ---------- */
@media (max-width: 768px) {
  #navMenu {
    max-height: calc(100vh - 70px);
    max-height: calc(100dvh - 60px); /* 真实动态视口，dvh 不支持时用上一行 vh 兜底 */
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    box-sizing: border-box;
    /* 底部预留悬浮小程序胶囊(z-index:99999)的高度，保证末项不被遮挡可滚到 */
    padding-bottom: 128px;
  }
  /* 语言切换入口置顶显示，不再被产品长菜单挤出可视区（旧位置在抽屉最底，overflow:hidden 时不可达） */
  #navMenu > li.lang-switcher {
    order: -1;
    width: 100%;
    margin: 0 0 10px !important;
    display: flex;
    flex-direction: column; /* 按钮与下拉面板纵向占满整行 */
  }
  #navMenu .lang-switcher-btn {
    width: 100%;
    min-height: 44px;
    justify-content: center;
    padding: 10px 16px;
    font-size: 14px;
  }
  #navMenu .lang-switcher-btn .lang-current { max-width: none; }
  /* 下拉面板在抽屉内静态展开（!important 覆盖 lang-switcher.js 运行时写入的 position:fixed 内联样式） */
  #navMenu .lang-dropdown.show {
    position: static !important;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    transform: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    width: 100%;
    min-width: 0;
    margin: 8px 0 2px;
    max-height: none;
    overflow-y: visible;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.12);
  }
  #navMenu .lang-option { min-height: 40px; }
}

/* ---------- B. 首页产品分区（桌面异常高度根治 + 全端统一纵向排布） ---------- */
#products-main {
  grid-template-columns: 1fr !important;
  gap: 0 !important;
}
#products-main > .section-header {
  margin: 36px 0 22px;
  text-align: center;
}
#products-main > .section-header:first-child { margin-top: 0; }
#products-main > .cards-grid-2 {
  margin-top: 0;
  width: 100%;
}
@media (max-width: 768px) {
  #products-main > .section-header { margin: 28px 0 18px; }
}
/* 双保险：390px 级窄屏下产品卡不允许任何固定宽撑出横向滚动 */
@media (max-width: 640px) {
  #products-main,
  #products-main .cards-grid-2,
  #products-main .product-card {
    max-width: 100%;
    box-sizing: border-box;
  }
}