/* 未能缩小。正在返回未缩小的内容。
(1186,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1199,39): run-time error CSS1039: Token not allowed after unary operator: '-scroll-dist'
(1202,39): run-time error CSS1039: Token not allowed after unary operator: '-scroll-dist'
(1973,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1974,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1975,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1976,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1977,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1978,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1979,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1980,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1981,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1982,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1983,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1984,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1985,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1986,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1987,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1988,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1989,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1990,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1991,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1992,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1993,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1995,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1996,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1997,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1998,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(1999,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2000,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2001,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2002,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2003,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2004,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2005,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2006,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2007,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2008,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2009,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2010,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2011,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2012,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2013,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2014,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2015,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2016,5): run-time error CSS1062: Expected semicolon or closing curly-brace, found '-'
(2030,23): run-time error CSS1039: Token not allowed after unary operator: '-font-family'
(2060,22): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(2061,23): run-time error CSS1039: Token not allowed after unary operator: '-font-family'
(2062,22): run-time error CSS1039: Token not allowed after unary operator: '-navbar-height'
(2063,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(2081,21): run-time error CSS1039: Token not allowed after unary operator: '-max-width'
(2108,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-full'
(2111,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2147,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-light'
(2155,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(2162,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2168,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(2351,19): run-time error CSS1039: Token not allowed after unary operator: '-spacing-2xl'
(2355,22): run-time error CSS1039: Token not allowed after unary operator: '-color-bg'
(2359,22): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(2364,17): run-time error CSS1039: Token not allowed after unary operator: '-color-on-dark'
(2377,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2386,17): run-time error CSS1039: Token not allowed after unary operator: '-color-primary'
(2392,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(2417,22): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(2418,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-md'
(2420,28): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(2421,35): run-time error CSS1039: Token not allowed after unary operator: '-transition-normal'
(2431,57): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2437,34): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-soft'
(2445,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-light'
(2450,26): run-time error CSS1039: Token not allowed after unary operator: '-transition-normal'
(2454,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-soft'
(2466,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(2472,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(2485,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-sm'
(2491,26): run-time error CSS1039: Token not allowed after unary operator: '-transition-fast'
(2497,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2502,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-hover'
(2504,22): run-time error CSS1039: Token not allowed after unary operator: '-shadow-accent'
(2518,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2523,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-light'
(2524,24): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2525,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2531,17): run-time error CSS1039: Token not allowed after unary operator: '-color-on-dark'
(2537,24): run-time error CSS1039: Token not allowed after unary operator: '-color-on-dark'
(2538,17): run-time error CSS1039: Token not allowed after unary operator: '-color-on-dark'
(2550,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2555,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-light'
(2568,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-secondary'
(2576,28): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(2577,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-sm'
(2579,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(2580,22): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(2581,35): run-time error CSS1039: Token not allowed after unary operator: '-transition-fast'
(2582,23): run-time error CSS1039: Token not allowed after unary operator: '-font-family'
(2586,24): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2588,32): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-light'
(2618,22): run-time error CSS1039: Token not allowed after unary operator: '-color-bg'
(2619,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-lg'
(2628,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2635,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-light'
(2649,35): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(2660,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(2661,28): run-time error CSS1039: Token not allowed after unary operator: '-transition-fast'
(2665,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2671,32): run-time error CSS1039: Token not allowed after unary operator: '-transition-normal'
(2678,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2684,33): run-time error CSS1039: Token not allowed after unary operator: '-transition-normal'
(2689,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-secondary'
(2707,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-lg'
(2730,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-full'
(2746,22): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(2747,28): run-time error CSS1039: Token not allowed after unary operator: '-color-border'
(2748,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-md'
(2753,33): run-time error CSS1039: Token not allowed after unary operator: '-transition-fast'
(2756,22): run-time error CSS1039: Token not allowed after unary operator: '-shadow-md'
(2757,24): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-soft'
(2762,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(2767,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(2774,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-light'
(2775,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-md'
(2802,14): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2803,14): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2804,14): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(2805,14): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(2827,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2840,22): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(2841,28): run-time error CSS1039: Token not allowed after unary operator: '-color-border'
(2843,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-md'
(2848,29): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2849,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-light'
(2854,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(2859,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(2873,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-lg'
(2875,22): run-time error CSS1039: Token not allowed after unary operator: '-shadow-md'
(2889,22): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(2890,28): run-time error CSS1039: Token not allowed after unary operator: '-color-border'
(2891,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-md'
(2894,33): run-time error CSS1039: Token not allowed after unary operator: '-transition-fast'
(2897,22): run-time error CSS1039: Token not allowed after unary operator: '-shadow-md'
(2903,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2914,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(2929,35): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(2939,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2947,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(2953,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(2963,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-light'
(2965,21): run-time error CSS1039: Token not allowed after unary operator: '-max-width'
(2972,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(2974,28): run-time error CSS1039: Token not allowed after unary operator: '-transition-fast'
(2978,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(2987,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(2998,22): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(2999,28): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(3002,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-secondary'
(3009,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-full'
(3010,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3017,22): run-time error CSS1039: Token not allowed after unary operator: '-color-bg'
(3020,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(3024,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3039,22): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(3040,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-lg'
(3042,28): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(3048,22): run-time error CSS1039: Token not allowed after unary operator: '-shadow-md'
(3075,17): run-time error CSS1039: Token not allowed after unary operator: '-color-on-dark'
(3087,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(3093,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3104,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(3113,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3142,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-light'
(3151,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(3157,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(3168,28): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(3169,28): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3170,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-full'
(3184,22): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(3196,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-sm'
(3199,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(3200,22): run-time error CSS1039: Token not allowed after unary operator: '-color-bg'
(3203,26): run-time error CSS1039: Token not allowed after unary operator: '-transition-fast'
(3209,22): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(3210,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(3215,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3217,24): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3229,46): run-time error CSS1039: Token not allowed after unary operator: '-color-bg'
(3229,63): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(3232,28): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(3238,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(3244,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(3264,22): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(3265,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-lg'
(3267,28): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(3268,35): run-time error CSS1039: Token not allowed after unary operator: '-transition-normal'
(3271,39): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3283,22): run-time error CSS1039: Token not allowed after unary operator: '-color-bg'
(3306,22): run-time error CSS1039: Token not allowed after unary operator: '-shadow-sm'
(3316,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(3323,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(3350,28): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(3351,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-sm'
(3353,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(3354,26): run-time error CSS1039: Token not allowed after unary operator: '-transition-fast'
(3359,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3361,24): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3366,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3368,24): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3386,22): run-time error CSS1039: Token not allowed after unary operator: '-color-surface'
(3387,25): run-time error CSS1039: Token not allowed after unary operator: '-radius-lg'
(3389,28): run-time error CSS1039: Token not allowed after unary operator: '-color-muted'
(3390,35): run-time error CSS1039: Token not allowed after unary operator: '-transition-normal'
(3390,72): run-time error CSS1039: Token not allowed after unary operator: '-transition-normal'
(3390,108): run-time error CSS1039: Token not allowed after unary operator: '-transition-normal'
(3394,42): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-soft'
(3421,32): run-time error CSS1039: Token not allowed after unary operator: '-transition-slow'
(3438,30): run-time error CSS1039: Token not allowed after unary operator: '-transition-normal'
(3456,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(3463,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-secondary'
(3482,22): run-time error CSS1039: Token not allowed after unary operator: '-color-bg'
(3484,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text-muted'
(3499,17): run-time error CSS1039: Token not allowed after unary operator: '-color-text'
(3500,26): run-time error CSS1039: Token not allowed after unary operator: '-transition-fast'
(3505,37): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3516,32): run-time error CSS1039: Token not allowed after unary operator: '-transition-fast'
(3519,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3722,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3723,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-light'
(3847,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3871,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3892,24): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3954,17): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3955,31): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(3987,24): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(4033,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent'
(4042,22): run-time error CSS1039: Token not allowed after unary operator: '-color-accent-hover'
 */
[data-aos][data-aos][data-aos-duration="50"],body[data-aos-duration="50"] [data-aos]{transition-duration:50ms}[data-aos][data-aos][data-aos-delay="50"],body[data-aos-delay="50"] [data-aos]{transition-delay:0}[data-aos][data-aos][data-aos-delay="50"].aos-animate,body[data-aos-delay="50"] [data-aos].aos-animate{transition-delay:50ms}[data-aos][data-aos][data-aos-duration="100"],body[data-aos-duration="100"] [data-aos]{transition-duration:.1s}[data-aos][data-aos][data-aos-delay="100"],body[data-aos-delay="100"] [data-aos]{transition-delay:0}[data-aos][data-aos][data-aos-delay="100"].aos-animate,body[data-aos-delay="100"] [data-aos].aos-animate{transition-delay:.1s}[data-aos][data-aos][data-aos-duration="150"],body[data-aos-duration="150"] [data-aos]{transition-duration:.15s}[data-aos][data-aos][data-aos-delay="150"],body[data-aos-delay="150"] [data-aos]{transition-delay:0}[data-aos][data-aos][data-aos-delay="150"].aos-animate,body[data-aos-delay="150"] 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/* =============================================
   禄存科技 B2B 精密仪器官网 - 设计系统 v2
   配色: 精密橙 #d4552b / 深空黑 #0d0d0d / slate灰过渡
   ============================================= */

/* ===== 全局重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-weight: 400;
    color: #1a1a1a;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: #ffffff;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    /* 使用高不透明度纯色替代 backdrop-filter:blur — 消除每帧 GPU 重采样，滚动性能提升最大 */
    background: rgba(255,255,255,0.97);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    z-index: 1000;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
    transform: translateZ(0); /* 独立合成层，避免滚动时与其他元素一起重绘 */
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    height: 100%;
}
.logo img {
    height: 44px;
    width: auto;
    display: block;
}

.nav-menu {
    display: flex;
    gap: 36px;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: #444;
    transition: color 0.2s;
    position: relative;
    padding-bottom: 4px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: #d4552b;
    transition: width 0.25s;
}

.nav-link:hover::after,
.nav-link.active::after { width: 100%; }

.nav-link:hover,
.nav-link.active { color: #d4552b; }

.nav-cta {
    padding: 8px 20px;
    background: #d4552b;
    color: white;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    transition: background 0.2s, transform 0.2s;
}
.nav-cta:hover { background: #b0421f; }

.mobile-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}
.mobile-btn span {
    width: 22px; height: 2px;
    background: #1a1a1a;
    transition: all 0.2s;
}

/* 移动端菜单展开状态 */
.nav-menu-open {
    display: flex !important;
    flex-direction: column;
    position: absolute;
    top: 70px; left: 0;
    width: 100%;
    background: rgba(255,255,255,0.98);
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* ===== 通用按钮 ===== */
.btn-primary {
    display: inline-block;
    padding: 12px 32px;
    background: #d4552b;
    color: white;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    cursor: pointer;
    letter-spacing: 0.5px;
}
.btn-primary:hover { background: #b0421f; }

.btn-outline {
    display: inline-block;
    padding: 12px 32px;
    border: 1px solid #1a1a1a;
    color: #1a1a1a;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}
.btn-outline:hover { background: #1a1a1a; color: white; }

.btn-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: #d4552b;
    transition: gap 0.2s;
}
.btn-link:hover { gap: 12px; }

.btn-large { padding: 14px 40px; font-size: 16px; }

.section-footer { text-align: center; margin-top: 28px; }

.btn-view-all {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 500;
    color: #d4552b;
    transition: all 0.2s;
    padding: 10px 28px;
    border: 1px solid rgba(212,85,43,0.3);
    border-radius: 4px;
}
.btn-view-all:hover {
    background: #d4552b;
    color: white;
    border-color: #d4552b;
}

/* ===== 通用标签与标题 ===== */
.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: #d4552b;
    letter-spacing: 2px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.section-title {
    font-size: 36px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

/* ===== Banner 轮播 ===== */
.banner-section {
    margin-top: 70px;
    position: relative;
    width: 100%;
    height: 88vh;
    min-height: 520px;
}

.banner-swiper {
    width: 100%;
    height: 100%;
    overflow: hidden;
    transform: translateZ(0); /* GPU 合成层，减少 Swiper 切换时的重绘开销 */
}
.banner-swiper .swiper-slide {
    position: relative;
    display: flex;
    align-items: center;
}

/* 全幅背景图 */
.banner-slide-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-size: cover;
    background-position: center;
}

/* 左侧渐变支撑 — 确保白字在任何背景图上可读，右侧透明保留原图 */
.banner-slide-bg::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(
        to right,
        rgba(28, 24, 21, 0.45) 0%,
        rgba(28, 24, 21, 0.20) 30%,
        rgba(28, 24, 21, 0.05) 50%,
        transparent 65%
    );
}

.banner-content {
    position: relative;
    z-index: 5;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 60px;
    color: white;
    width: 100%;
}

.banner-content .banner-tag {
    display: inline-block;
    padding: 5px 16px;
    background: rgba(212,85,43,0.2);
    border: 1px solid rgba(212,85,43,0.5);
    color: #fca88b;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 3px;
    margin-bottom: 28px;
    border-radius: 3px;
}

.banner-content h2 {
    font-size: 52px;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 20px;
    color: #fff;
    letter-spacing: 0;
    text-shadow: 0 2px 16px rgba(0,0,0,0.6);
    max-width: 640px;
}

.banner-content p {
    font-size: 16px;
    color: rgba(255,255,255,0.75);
    margin-bottom: 36px;
    line-height: 1.8;
    max-width: 520px;
    text-shadow: 0 1px 8px rgba(0,0,0,0.4);
}

.banner-btns {
    display: flex;
    gap: 16px;
    align-items: center;
}

.btn-banner-primary {
    display: inline-block;
    padding: 14px 38px;
    background: #d4552b;
    color: white;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.2s;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 16px rgba(212,85,43,0.3);
}
.btn-banner-primary:hover { background: #b0421f; transform: translateY(-1px); box-shadow: 0 6px 24px rgba(212,85,43,0.4); }

.btn-banner-outline {
    display: inline-block;
    padding: 14px 38px;
    border: 1px solid rgba(255,255,255,0.4);
    color: white;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.2s;
    letter-spacing: 0.5px;
}
.btn-banner-outline:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.7); }

.banner-swiper .swiper-pagination-bullet {
    width: 10px; height: 10px;
    background: white;
    opacity: 0.35;
}
.banner-swiper .swiper-pagination-bullet-active {
    opacity: 1;
    background: #d4552b;
}

/* === Prev/Next — 深色圆底+白箭头，浅深背景均清晰可见 === */
.banner-swiper .swiper-button-next,
.banner-swiper .swiper-button-prev {
    width: 50px !important;
    height: 50px !important;
    margin-top: -25px !important;
    left: auto !important;
    right: auto !important;
    background: rgba(0, 0, 0, 0.35) !important;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    color: #fff;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.banner-swiper .swiper-button-prev { left: 24px !important; }
.banner-swiper .swiper-button-next { right: 24px !important; }

/* 暴力覆盖 Swiper 默认 :after 文字 — 双保险单双冒号 */
.banner-swiper .swiper-button-next:after,
.banner-swiper .swiper-button-prev:after,
.banner-swiper .swiper-button-next::after,
.banner-swiper .swiper-button-prev::after {
    content: "" !important;
    font-family: inherit !important;
    font-size: 0 !important;
    display: none !important;
    opacity: 0 !important;
    visibility: hidden !important;
}

.banner-swiper .swiper-button-next:hover,
.banner-swiper .swiper-button-prev:hover {
    background: #d4552b !important;
    border-color: #d4552b;
    box-shadow: 0 4px 20px rgba(212,85,43,0.4);
    transform: scale(1.08);
}
.banner-swiper .swiper-button-next:active,
.banner-swiper .swiper-button-prev:active {
    transform: scale(0.95);
}

/* ===== 滚动提示动画 ===== */
.scroll-indicator {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}
.scroll-mouse {
    width: 26px;
    height: 42px;
    border: 2px solid rgba(0, 0, 0, 0.35);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}
.scroll-wheel {
    width: 3px;
    height: 8px;
    background: rgba(0, 0, 0, 0.55);
    border-radius: 2px;
    animation: scrollWheel 1.6s ease-in-out infinite;
}
@keyframes scrollWheel {
    0% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(8px); opacity: 0.2; }
    100% { transform: translateY(0); opacity: 1; }
}

/* ===== 理念区域 ===== */
.philosophy {
    background: #ffffff;
    padding: 80px 0;
}

.philosophy-header {
    text-align: center;
    margin-bottom: 60px;
    padding: 0 20px;
}
.philosophy-header h2 {
    font-size: 36px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 12px;
    letter-spacing: 1px;
}
.philosophy-header p {
    font-size: 16px;
    color: #666;
}

.philosophy-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.philosophy-item {
    background: #f8f9fb;
    border-radius: 8px;
    padding: 40px 30px;
    transition: border-color 0.3s, background 0.3s;
    text-align: center;
    border: 1px solid transparent;
}
.philosophy-item:hover { border-color: #d4552b; background: #fff; }

.philosophy-icon {
    width: 64px; height: 64px;
    margin: 0 auto 20px;
    background: rgba(212,85,43,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.philosophy-item h3 {
    font-size: 22px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 12px;
}
.philosophy-item p { font-size: 14px; color: #666; line-height: 1.7; }

/* ===== 产品区域 - Bento 非对称网格重设计 ===== */
.products {
    padding: 100px 0 80px;
    background: #fafafa;
}

.products-header {
    text-align: center;
    margin-bottom: 48px;
}
.products-header .section-title {
    font-size: 38px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 10px;
}
.products-header p {
    font-size: 16px;
    color: #6b7280;
    max-width: 500px;
    margin: 0 auto;
}

/* Bento 网格: 2fr+1fr+1fr，第一张主力卡片跨双行 */
.product-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 主力产品卡片跨双行 */
.product-card:first-child {
    grid-row: span 2;
}
.product-card:first-child .product-card-info h4 {
    font-size: 20px;
}
.product-card:first-child .product-card-info p {
    font-size: 14px;
}

.product-card {
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid #e8eaef;
    text-align: center;
    box-shadow: 0 1px 2px rgba(0,0,0,0.04);
    contain: layout style paint;
    transform: translateZ(0);
    backface-visibility: hidden;
    position: relative;
}

/* 主力产品: 左侧橙色装饰条 + 更深的阴影 */
.product-card:first-child::before {
    content: '';
    position: absolute;
    left: 0; top: 12px; bottom: 12px;
    width: 3px;
    background: #d4552b;
    border-radius: 0 2px 2px 0;
    z-index: 2;
}

/* 普通卡片: 顶部hover出现细线 */
.product-card:not(:first-child)::before {
    content: '';
    position: absolute;
    top: 0; left: 20px; right: 20px;
    height: 2px;
    background: transparent;
    transition: background 0.3s;
}
.product-card:not(:first-child):hover::before {
    background: rgba(212,85,43,0.4);
}

.product-card:hover {
    border-color: rgba(212,85,43,0.25);
    box-shadow: 0 12px 40px rgba(0,0,0,0.08);
    transform: translateY(-4px);
}

.product-card-image {
    width: 100%;
    background: #f4f5f8;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 16/10;
    overflow: hidden;
    contain: layout style;
}
.product-card:first-child .product-card-image {
    aspect-ratio: 16/9;
    padding: 24px;
}
.product-card-image img {
    max-width: 92%;
    max-height: 92%;
    object-fit: contain;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    image-rendering: auto;
}
.product-card:hover .product-card-image img { transform: scale(1.06); }

.product-card-info {
    padding: 16px 14px 20px;
}
.product-card-info h4 {
    font-size: 15px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 6px;
}
.product-card-info p {
    font-size: 13px;
    color: #888;
    line-height: 1.5;
    margin: 0;
}

/* ===== 关于我们全屏区 ===== */
.about-hero {
    position: relative;
    height: 70vh;
    min-height: 560px;
    max-height: 800px;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: scroll;
    display: flex;
    align-items: center;
}

.about-hero::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
    background: rgba(13,13,13,0.45);
    pointer-events: none;
}

.about-hero-content {
    position: relative;
    z-index: 2;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 40px;
    color: white;
    text-align: center;
}

.about-hero-content .section-tag {
    color: #fca88b;
    font-size: 13px;
    letter-spacing: 3px;
    font-weight: 600;
    margin-bottom: 16px;
    display: inline-block;
}

.about-hero-content h2 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
    color: #fff;
}

.about-hero-content .about-desc {
    font-size: 16px;
    color: rgba(255,255,255,0.78);
    line-height: 1.85;
    max-width: 680px;
    margin: 0 auto 40px;
}

.about-stats {
    display: flex;
    gap: 0;
    justify-content: center;
    align-items: center;
}

.about-stat-item {
    text-align: center;
    min-width: 160px;
    flex-shrink: 0;
}

.about-stat-num {
    display: block;
    font-size: 44px;
    font-weight: 700;
    margin-bottom: 4px;
}

.about-stat-label {
    font-size: 13px;
    color: rgba(255,255,255,0.85);
    letter-spacing: 1px;
}

.about-stat-divider {
    width: 1px;
    height: 60px;
    background: rgba(255,255,255,0.12);
    margin: 0 30px;
    flex-shrink: 0;
}

.about-cta-wrap {
    margin-top: 44px;
}
.about-cta-wrap .btn-banner-outline {
    display: inline-block;
    padding: 14px 40px;
    border: 1px solid rgba(255,255,255,0.35);
    color: white;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.25s;
    letter-spacing: 0.5px;
    text-decoration: none;
    background: rgba(255,255,255,0.04);
}
.about-cta-wrap .btn-banner-outline:hover {
    background: rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.6);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

/* ===== 应用领域 ===== */
.cases {
    padding: 100px 0;
    background: #ffffff;
}

.cases-header {
    text-align: center;
    margin-bottom: 56px;
}

.cases-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.cases-text h3 {
    font-size: 28px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 16px;
}
.cases-text p {
    font-size: 15px;
    color: #555;
    line-height: 1.85;
    margin-bottom: 30px;
}

.cases-text ul { list-style: none; }
.cases-text ul li {
    font-size: 14px;
    color: #444;
    padding: 12px 0 12px 24px;
    position: relative;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.2s;
}
.cases-text ul li:last-child { border-bottom: none; }
.cases-text ul li::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    transform: translateY(-50%);
    width: 6px; height: 6px;
    background: #d4552b;
    border-radius: 50%;
}

.cases-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 12px;
    height: 380px;
}

.cases-img-item {
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}
.cases-img-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
}
.cases-img-item:hover img { transform: scale(1.05); }

.cases-img-label {
    position: absolute;
    bottom: 12px; left: 12px;
    background: rgba(28,24,21,0.85);
    color: white;
    padding: 5px 14px;
    border-radius: 4px;
    font-size: 13px;
    z-index: 2;
}

/* ===== 核心优势 ===== */
.advantages {
    padding: 100px 0;
    background: #f0f2f5;
}

.advantages-header {
    text-align: center;
    margin-bottom: 56px;
    padding: 0 20px;
}
.advantages-header p {
    font-size: 15px;
    color: #6b7280;
    margin-top: 8px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
}

.advantage-card {
    background: white;
    border-radius: 14px;
    padding: 44px 40px;
    text-align: left;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid #e8eaef;
    position: relative;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}
.advantage-card:hover {
    border-color: rgba(212,85,43,0.25);
    box-shadow: 0 12px 36px rgba(0,0,0,0.07);
    transform: translateY(-4px);
}

.advantage-icon {
    width: 52px; height: 52px;
    margin: 0 0 20px 0;
    background: rgba(212,85,43,0.07);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s;
}
.advantage-icon svg {
    width: 30px; height: 30px;
    flex-shrink: 0;
}
.advantage-card:hover .advantage-icon {
    background: rgba(212,85,43,0.12);
}

.advantage-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
}
.advantage-card p {
    font-size: 14px;
    color: #777;
    line-height: 1.7;
    max-width: 360px;
}

@media (max-width: 768px) {
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    .advantage-card {
        padding: 36px 28px;
    }
}

/* ===== 为什么选择禄存 ===== */
.why-us {
    padding: 100px 0;
    background: #ffffff;
}

.why-us-header {
    text-align: center;
    margin-bottom: 56px;
}
.why-us-header p {
    font-size: 15px;
    color: #6b7280;
    margin-top: 8px;
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
    border: 1px solid #e8eaef;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,0.03);
}

.why-us-item {
    padding: 45px 48px;
    transition: all 0.3s;
    position: relative;
    background: #fff;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    border-right: 1px solid #e8eaef;
    border-bottom: 1px solid #e8eaef;
}
.why-us-item:nth-child(2n) { border-right: none; }
.why-us-item:nth-child(3),
.why-us-item:nth-child(4) { border-bottom: none; }

.why-us-item:hover {
    background: #fafbfc;
}
.why-us-item:hover .why-us-icon-wrap {
    background: rgba(212,85,43,0.1);
    transform: scale(1.05);
}

.why-us-icon-wrap {
    width: 52px; height: 52px;
    min-width: 52px;
    background: rgba(212,85,43,0.06);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}
.why-us-icon-wrap svg {
    width: 26px; height: 26px;
}
.why-us-body h4 {
    font-size: 17px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 6px;
}
.why-us-body p {
    font-size: 14px;
    color: #777;
    line-height: 1.7;
    margin: 0;
}
.why-us-body .why-us-highlight {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: #d4552b;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
}

/* ===== 新闻区域 ===== */
.news {
    padding: 100px 0;
    background: #f0f2f5;
}

.news-header {
    text-align: center;
    margin-bottom: 56px;
}

.news-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.news-featured {
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    height: 380px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.news-featured img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
}
.news-featured:hover img { transform: scale(1.03); }

.news-featured-content {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 30px;
    background: linear-gradient(to top, rgba(13,13,13,0.9), transparent);
    color: white;
}

.news-featured-tag {
    display: inline-block;
    padding: 4px 12px;
    background: #d4552b;
    border-radius: 3px;
    font-size: 12px;
    margin-bottom: 10px;
}

.news-featured-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 6px;
}
.news-featured-date { font-size: 12px; color: rgba(255,255,255,0.55); }

.news-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.news-item {
    padding: 22px 0;
    border-bottom: 1px solid #e0e4ea;
    transition: all 0.2s;
    cursor: pointer;
}
.news-item:last-child { border-bottom: none; }
.news-item:hover { padding-left: 12px; }
.news-item:hover h3 { color: #d4552b; }

.news-item-date {
    font-size: 12px;
    color: #d4552b;
    font-weight: 500;
    display: block;
    margin-bottom: 6px;
}
.news-item h3 {
    font-size: 16px;
    font-weight: 500;
    color: #333;
    margin-bottom: 4px;
    transition: color 0.2s;
}
.news-item p { font-size: 13px; color: #999; }

/* ===== CTA 区域 ===== */
.cta {
    background: #0d0d0d;
    color: white;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.cta-split {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.cta-left { padding: 80px 60px; }

.cta-tag {
    font-size: 12px;
    letter-spacing: 3px;
    color: #fca88b;
    margin-bottom: 12px;
    display: block;
    font-weight: 500;
}

.cta-title {
    font-size: 38px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.cta-accent { color: #fca88b; }

.cta-text {
    font-size: 15px;
    color: rgba(255,255,255,0.55);
    margin-bottom: 32px;
    max-width: 440px;
}

.cta-right {
    background: #111;
    border-left: 1px solid rgba(255,255,255,0.06);
    padding: 80px 60px;
    display: flex;
    align-items: center;
}

.cta-contact {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cta-contact-label {
    font-size: 11px;
    color: rgba(255,255,255,0.4);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.cta-phone {
    font-size: 30px;
    font-weight: 600;
    color: white;
    margin-bottom: 24px;
    transition: color 0.2s;
}
.cta-phone:hover { color: #fca88b; }

.cta-email {
    font-size: 18px;
    color: rgba(255,255,255,0.55);
    transition: color 0.2s;
}
.cta-email:hover { color: #fca88b; }

/* ===== 页脚 ===== */
.footer {
    padding: 60px 0 30px;
    background: #080808;
    color: rgba(255,255,255,0.55);
    font-size: 14px;
}

/* ===== 荣誉客户 ===== */
.partners {
    padding: 80px 0;
    background: #ffffff;
}

.honor-carousel {
    height: 365px;
    overflow: hidden;
}

.honor-carousel-wrap {
    width: 100%;
    overflow: hidden;
    background: #fff;
}

.honor-row {
    width: 100%;
    overflow: hidden;
    margin-bottom: 15px;
}
.honor-row:last-child { margin-bottom: 0; }

.honor-row ul {
    display: flex;
    gap: 0;
    list-style: none;
    padding: 0; margin: 0;
    will-change: transform;
    --scroll-dist: -800px; /* 兜底值，JS 会在加载后更新 */
    width: max-content;
}
/* 第一行：向左滚动 */
.honor-row:nth-child(1) ul {
    animation: honorBounce1 18s ease-in-out infinite alternate both;
}
/* 第二行：向右滚动（反向） */
.honor-row:nth-child(2) ul {
    animation: honorBounce2 18s ease-in-out infinite alternate both;
}
@keyframes honorBounce1 {
    from { transform: translateX(0); }
    to   { transform: translateX(var(--scroll-dist)); }
}
@keyframes honorBounce2 {
    from { transform: translateX(var(--scroll-dist)); }
    to   { transform: translateX(0); }
}
.honor-row li {
    flex: 0 0 auto;
    width: 180px;
    background: transparent;
    padding: 8px;
}

.client-logo {
    width: 100%;
    height: 100px;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.client-logo img {
    max-width: 90%;
    max-height: 90%;
    width: auto; height: auto;
    object-fit: contain;
    display: block;
    transition: all 0.2s;
    filter: grayscale(100%);
    opacity: 0.7;
}
.client-logo img:hover {
    opacity: 1;
    filter: grayscale(0%);
}

/* ===== CTA 区域 ===== */
.cta {
    background: #1a1a1a;
    color: white;
    border-bottom: 1px solid rgba(255,255,255,0.10);
}

.cta-split {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.cta-left { padding: 80px 60px; }

.cta-tag {
    font-size: 12px;
    letter-spacing: 3px;
    color: #fca88b;
    margin-bottom: 12px;
    display: block;
    font-weight: 500;
}

.cta-title {
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.cta-accent { color: #fca88b; }

.cta-text {
    font-size: 15px;
    color: rgba(255,255,255,0.65);
    margin-bottom: 30px;
}

.cta-right {
    background: #1a1a1a;
    border-left: 1px solid rgba(255,255,255,0.08);
    padding: 80px 60px;
    display: flex;
    align-items: center;
}

.cta-contact {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cta-contact-label {
    font-size: 11px;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.cta-phone {
    font-size: 30px;
    font-weight: 600;
    color: white;
    margin-bottom: 24px;
    transition: color 0.2s;
}
.cta-phone:hover { color: #fca88b; }

.cta-email {
    font-size: 18px;
    color: rgba(255,255,255,0.65);
    transition: color 0.2s;
}
.cta-email:hover { color: #fca88b; }

/* ===== 页脚 ===== */
.footer {
    padding: 60px 0 30px;
    background: #141210;
    color: rgba(255,255,255,0.65);
    font-size: 14px;
}

.footer-main {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 40px;
}

.footer-brand { max-width: 400px; }

.footer-logo {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 14px;
    color: white;
}

.footer-brand p {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
    line-height: 1.8;
    margin-bottom: 16px;
}

.footer-brand .footer-address,
.footer-brand .footer-phone,
.footer-brand .footer-email {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
    margin-bottom: 5px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    line-height: 1.5;
}

.footer-icon { flex-shrink: 0; width: 18px; text-align: center; }

.footer-nav { display: flex; gap: 60px; }

.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
    color: white;
}
.footer-col a {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
    transition: color 0.2s;
}
.footer-col a:hover { color: #fca88b; }

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.06);
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: rgba(255,255,255,0.3);
}

.footer-links { display: flex; gap: 20px; }
.footer-links a {
    color: rgba(255,255,255,0.3);
    transition: color 0.2s;
}
.footer-links a:hover { color: #fca88b; }

/* ===== 页脚二维码 ===== */
.footer-qrcodes {
    display: flex;
    gap: 25px;
    margin-top: 20px;
}

.qrcode-item { text-align: center; width: 110px; }

.qrcode-placeholder {
    width: 90px; height: 90px;
    background: #fff;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 8px;
    overflow: hidden;
}
.qrcode-placeholder img { width: 100%; height: 100%; object-fit: cover; }

.qrcode-item span { font-size: 12px; color: rgba(255,255,255,0.5); display: block; }

/* ===== 浮动按钮组 ===== */
.float-buttons {
    position: fixed;
    bottom: 30px; right: 30px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.float-item {
    position: relative;
    width: 56px; height: 56px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    cursor: pointer;
    transition: transform 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(0,0,0,0.06);
}
.float-item:hover { border-color: rgba(212,85,43,0.2); background: rgba(212,85,43,0.02); }

.float-icon {
    width: 28px; height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.float-icon img {
    width: 100%; height: 100%;
    object-fit: contain;
    opacity: 0.7;
    transition: opacity 0.2s;
}
.float-item:hover .float-icon img { opacity: 0.9; }

.float-content {
    position: absolute;
    right: 72px; top: 50%;
    transform: translateY(-50%);
    background: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(212,85,43,0.07);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s;
    pointer-events: none;
}
.float-item:hover .float-content {
    opacity: 1;
    visibility: visible;
    right: 76px;
    pointer-events: auto;
}

.phone-content {
    text-align: left;
    min-width: 180px;
    padding: 15px 20px;
}
.phone-number {
    font-size: 18px;
    font-weight: 500;
    color: #1a1a1a;
    margin-bottom: 4px;
}
.phone-sub { font-size: 12px; color: #999; }

.qr-content {
    white-space: normal;
    min-width: 240px;
    padding: 20px;
    text-align: center;
}

.qr-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 10px;
}
.qr-item { text-align: center; }
.qr-code {
    width: 85px; height: 85px;
    margin: 0 auto 8px;
    background: #f5f5f7;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #f0f0f0;
}
.qr-code img { width: 100%; height: 100%; object-fit: cover; }
.qr-item span { font-size: 12px; color: #666; display: block; line-height: 1.4; }

.qr-tip {
    font-size: 12px;
    color: #999;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid #f0f0f0;
}

.back-to-top {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}
.back-to-top.show { opacity: 1; visibility: visible; }

/* ===== 响应式 ===== */
@media (max-width: 1200px) {
    .product-grid { grid-template-columns: 1fr 1fr; }
    .product-card:first-child { grid-row: auto; }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .banner-content h2 { font-size: 42px; }
    .philosophy-list { grid-template-columns: repeat(2, 1fr); }
    .why-us-grid { max-width: 900px; }
}

@media (max-width: 1024px) {
    .news-layout { grid-template-columns: 1fr; }
    .cases-layout { grid-template-columns: 1fr; }
    .cta-split { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .product-card:first-child { grid-row: auto; }
    .why-us-grid { grid-template-columns: 1fr; }
    .why-us-item { border-right: none; }
    .why-us-item:nth-child(3) { border-bottom: 1px solid #e8eaef; }
}

@media (max-width: 768px) {
    .nav-menu { display: none; }
    .mobile-btn { display: flex; }
    .banner-content { padding: 0 24px; }
    .banner-content p { font-size: 14px; }
    .product-grid { grid-template-columns: repeat(2, 1fr); padding: 0 16px; gap: 12px; }
    .product-card:first-child { grid-row: auto; }
    .philosophy-list { grid-template-columns: 1fr; }
    .why-us-grid { grid-template-columns: 1fr; }
    .why-us-item { border-right: none; }
    .why-us-item:nth-child(3) { border-bottom: 1px solid #e8eaef; }
    .about-hero { height: auto; min-height: 500px; padding: 70px 0; }
    .about-hero-content { margin: 0 24px; padding: 0; }
    .about-stats { flex-wrap: wrap; gap: 30px; justify-content: space-evenly; }
    .about-stat-item { min-width: auto; }
    .about-stat-divider { display: none; }
    .section-title { font-size: 28px; }
    .footer-nav { flex-direction: column; gap: 30px; }
    .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
    .cases-images { height: 250px; }
    .banner-content h2 { font-size: 28px; }
    .banner-swiper .swiper-button-next,
    .banner-swiper .swiper-button-prev { width: 40px !important; height: 40px !important; margin-top: -20px !important; }
    .banner-swiper .swiper-button-prev { left: 10px !important; }
    .banner-swiper .swiper-button-next { right: 10px !important; }
    .banner-swiper .swiper-button-next svg,
    .banner-swiper .swiper-button-prev svg { width: 12px; height: 12px; }
}

@media (max-width: 480px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); padding: 0 12px; gap: 10px; }
    .product-card:first-child { grid-row: auto; }
    .advantages-grid { grid-template-columns: 1fr; }
    .float-buttons { bottom: 15px; right: 15px; gap: 10px; }
    .float-item { width: 44px; height: 44px; }
    .float-icon { width: 22px; height: 22px; }
    .float-content { display: none; }
    .about-hero-content { padding: 0; }
    .about-hero-content h2 { font-size: 28px; }
    .about-stats { gap: 20px; }
    .about-stat-item { min-width: auto; }
    .about-stat-num { font-size: 30px; }
    .why-us-item { padding: 30px 24px; flex-direction: column; align-items: center; text-align: center; }
}

/* =============================================
   子页面统一设计系统 - Page Design System
   ============================================= */

/* --- 子页面容器 --- */
.subpage { width: 100%; background: #fff; margin-top: 70px; }

/* --- 页面顶部 Banner --- */
.page-banner {
    position: relative; min-height: 400px; height: 50vh;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    overflow: hidden;
}
.page-banner-dark {
    background: linear-gradient(135deg, #1a1a1a 0%, #2a2420 100%);
}
.page-banner-dark .page-banner-stamp,
.page-banner-dark .page-banner-subtitle { color: rgba(255,255,255,0.5); }
.page-banner-dark .page-banner-title { color: #fff; }
.page-banner-bg {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none;
}
.page-banner-dot {
    position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.08;
}
.page-banner-dot:nth-child(1) { width: 500px; height: 500px; background: #d4552b; top: -150px; right: -100px; }
.page-banner-dot:nth-child(2) { width: 400px; height: 400px; background: #d4552b; bottom: -100px; left: -100px; }
.page-banner-dot:nth-child(3) { width: 250px; height: 250px; background: #d4552b; top: 30%; left: 20%; }
.page-banner-content {
    position: relative; z-index: 2; text-align: center;
    max-width: 800px; padding: 0 20px;
}
.page-banner-stamp {
    display: inline-block; font-size: 12px; letter-spacing: 6px;
    color: #999; font-weight: 500; margin-bottom: 16px;
}
.page-banner-title {
    font-size: 56px; font-weight: 600; color: #1a1a1a;
    line-height: 1.2; margin-bottom: 16px; letter-spacing: 2px;
}
.page-banner-accent { color: #d4552b; }
.page-banner-subtitle {
    font-size: 16px; color: #888; font-weight: 400; letter-spacing: 1px;
}

/* --- 统一 Section --- */
.page-section { padding: 80px 0; }
.page-section-gray { background: #f5f7fa; }
.page-section-white { background: #fff; }
.page-section-dark { background: #1a1a1a; color: #fff; }
.page-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* --- 面包屑 --- */
.breadcrumb {
    font-size: 13px; color: #999; padding: 20px 0 0;
    max-width: 1200px; margin: 0 auto; padding-left: 20px; padding-right: 20px;
}
.breadcrumb a { color: #d4552b; text-decoration: none; }
.breadcrumb span { color: #999; }

/* --- 通用卡片 --- */
.card-grid { display: grid; gap: 24px; margin-top: 50px; }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
    background: #fff; border-radius: 8px; padding: 30px;
    border: 1px solid #e8eaef; transition: border-color 0.3s;
}
.card:hover {
    border-color: #d4552b;
}
.card-icon {
    width: 56px; height: 56px; margin-bottom: 16px;
    background: rgba(212,85,43,0.06); border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
}
.card-icon svg { width: 28px; height: 28px; }
.card h4 { font-size: 17px; font-weight: 600; color: #1a1a1a; margin-bottom: 8px; }
.card p { font-size: 14px; color: #777; line-height: 1.7; }

/* --- 统一表单 --- */
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block; font-size: 14px; color: #555; margin-bottom: 6px; font-weight: 500;
}
.form-control {
    width: 100%; padding: 12px 16px; border: 1px solid #dde1e6;
    border-radius: 6px; font-size: 15px; color: #333;
    background: #fff; transition: border-color 0.2s; box-sizing: border-box;
    font-family: inherit;
}
.form-control:focus { border-color: #d4552b; outline: none; box-shadow: 0 0 0 3px rgba(212,85,43,0.1); }
.form-control::placeholder { color: #bbb; }
textarea.form-control { resize: vertical; min-height: 120px; }

/* --- 按钮系统 --- */
.btn {
    display: inline-block; padding: 12px 32px; border-radius: 4px;
    font-size: 15px; font-weight: 500; text-decoration: none;
    cursor: pointer; border: none; transition: all 0.2s;
}
.btn-primary {
    background: #d4552b; color: #fff;
}
.btn-primary:hover { background: #b0421f; }
.btn-outline {
    background: transparent; color: #d4552b; border: 1px solid rgba(212,85,43,0.3);
}
.btn-outline:hover { background: rgba(212,85,43,0.06); }

/* --- FAQ 手风琴 --- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid #e8eaef; }
.faq-question {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 0; cursor: pointer; font-size: 16px; font-weight: 500;
    color: #1a1a1a; transition: color 0.2s;
}
.faq-question:hover { color: #d4552b; }
.faq-question .faq-icon {
    font-size: 20px; color: #999; transition: transform 0.3s;
}
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-answer {
    max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
}
.faq-answer p {
    padding-bottom: 20px; color: #666; font-size: 15px; line-height: 1.8; margin: 0;
}

/* --- 时间轴组件 --- */
.timeline { margin-top: 60px; }
.timeline-item {
    display: flex; gap: 60px; padding: 30px 0;
    border-bottom: 1px solid #eaecf0;
}
.timeline-item:last-child { border-bottom: none; }
.timeline-year {
    font-size: 24px; font-weight: 700; color: #d4552b;
    min-width: 100px; flex-shrink: 0;
}
.timeline-content h3 { font-size: 20px; font-weight: 600; color: #1a1a1a; margin-bottom: 8px; }
.timeline-content p { font-size: 15px; color: #666; line-height: 1.7; margin: 0; }

/* --- 数据统计 --- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.stat-item { text-align: center; }
.stat-number {
    display: block; font-size: 48px; font-weight: 700; color: #d4552b;
    margin-bottom: 4px; line-height: 1.1;
}
.stat-label { font-size: 13px; color: #999; text-transform: uppercase; letter-spacing: 1px; }

/* --- 合作伙伴网格 --- */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; margin-top: 50px; }
.partner-item {
    text-align: center; padding: 20px 16px; background: #fff;
    border: 1px solid #eaecf0; border-radius: 8px;
    font-size: 14px; color: #555; transition: all 0.3s;
}
.partner-item:hover { border-color: #d4552b; color: #d4552b; box-shadow: 0 4px 12px rgba(0,0,0,0.04); }

/* --- 两栏布局 --- */
.split-layout { display: flex; gap: 80px; align-items: flex-start; }
.split-left { flex: 1.2; }
.split-right { flex: 1; }

/* --- 联系我们信息卡片 --- */
.contact-info-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 50px; }
.contact-info-card {
    text-align: center; padding: 40px 24px; background: #fff;
    border: 1px solid #e8eaef; border-radius: 8px; transition: border-color 0.3s, background 0.3s;
}
.contact-info-card:hover { border-color: #d4552b; background: #fefdfb; }
.contact-info-card .info-icon {
    width: 56px; height: 56px; margin: 0 auto 16px;
    background: rgba(212,85,43,0.06); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
}
.contact-info-card .info-icon svg { width: 28px; height: 28px; }
.contact-info-card h4 { font-size: 17px; font-weight: 600; color: #1a1a1a; margin-bottom: 8px; }
.contact-info-card p { font-size: 14px; color: #777; line-height: 1.6; }

/* --- 新闻列表 --- */
.news-list-item {
    display: flex; gap: 24px; padding: 24px 0; border-bottom: 1px solid #eaecf0;
    transition: all 0.3s; cursor: pointer;
}
.news-list-item:hover { background: rgba(212,85,43,0.02); padding-left: 12px; }
.news-list-thumb {
    width: 200px; height: 140px; border-radius: 6px;
    object-fit: cover; flex-shrink: 0;
}
.news-list-body { flex: 1; display: flex; flex-direction: column; justify-content: center; }
.news-list-body h4 { font-size: 18px; font-weight: 600; color: #1a1a1a; margin-bottom: 8px; }
.news-list-body p { font-size: 14px; color: #777; line-height: 1.6; margin-bottom: 8px; }
.news-list-meta { font-size: 12px; color: #bbb; }

/* --- 产品/案例详情 --- */
.detail-header { text-align: center; padding: 60px 0 40px; }
.detail-header h1 { font-size: 36px; font-weight: 600; color: #1a1a1a; margin-bottom: 12px; }
.detail-header .detail-meta { font-size: 13px; color: #999; }
.detail-body { max-width: 860px; margin: 0 auto; }
.detail-body p { font-size: 16px; color: #444; line-height: 1.9; margin-bottom: 24px; }
.detail-body img {
    width: 100%; border-radius: 8px; margin: 24px 0;
}

/* ===== 子页面响应式 ===== */
@media (max-width: 1024px) {
    .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .partner-grid { grid-template-columns: repeat(3, 1fr); }
    .contact-info-grid { grid-template-columns: repeat(2, 1fr); }
    .split-layout { gap: 50px; }
}
@media (max-width: 768px) {
    .page-banner { height: 40vh; min-height: 320px; }
    .page-banner-title { font-size: 38px; }
    .page-section { padding: 60px 0; }
    .card-grid-2, .card-grid-3, .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .partner-grid { grid-template-columns: repeat(3, 1fr); }
    .split-layout { flex-direction: column; gap: 40px; }
    .timeline-item { flex-direction: column; gap: 12px; padding: 24px 0; }
    .timeline-year { min-width: auto; }
    .stats-grid { gap: 20px; }
    .stat-number { font-size: 36px; }
    .contact-info-grid { grid-template-columns: 1fr; }
    .news-list-item { flex-direction: column; gap: 12px; }
    .news-list-thumb { width: 100%; height: 180px; }
}
@media (max-width: 480px) {
    .page-banner { height: 35vh; min-height: 260px; }
    .page-banner-title { font-size: 28px; }
    .page-banner-stamp { letter-spacing: 3px; }
    .card-grid-2, .card-grid-3, .card-grid-4 { grid-template-columns: 1fr; }
    .partner-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: 1fr; }
    .stat-number { font-size: 32px; }
}

/* =============================================
   全局子页面风格统一覆盖规则
   确保所有子页面与主页视觉一致
   ============================================= */

/* --- 容器统一 --- */
.product-page, .contact-page, .news-page,
.news-detail-page, .product-detail-page, .case-detail-page {
    margin-top: 70px;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* --- 品牌色覆盖：所有子页面强调色统一为橙色 --- */
.product-page a, .contact-page a, .news-page a,
.news-detail-page a, .product-detail-page a, .case-detail-page a {
    color: #d4552b;
}

/* Hero 标题品牌色 */
[class$="-hero-accent"] {
    color: #d4552b;
    font-weight: 600;
}
[class$="-hero-title"] {
    font-weight: 600;
    color: #1a1a1a;
}
[class$="-hero-stamp"] {
    letter-spacing: 4px;
    font-weight: 500;
}

/* --- 按钮统一 --- */
.product-page .btn-primary, .contact-page .btn-primary, .news-page .btn-primary,
.product-detail-page .btn-primary, .case-detail-page .btn-primary {
    background: #d4552b;
    color: #fff;
    border-radius: 4px;
}
.product-page .btn-primary:hover, .contact-page .btn-primary:hover,
.news-page .btn-primary:hover, .product-detail-page .btn-primary:hover,
.case-detail-page .btn-primary:hover {
    background: #b0421f;
}

/* --- 表单统一 --- */
.product-page input, .product-page textarea, .product-page select,
.contact-page input, .contact-page textarea, .contact-page select {
    border-radius: 6px;
    border-color: #dde1e6;
}
.product-page input:focus, .contact-page input:focus {
    border-color: #d4552b;
    box-shadow: 0 0 0 3px rgba(212,85,43,0.1);
}

/* --- 卡片统一 --- */
.product-page [class$="-card"]:hover,
.contact-page [class$="-card"]:hover,
.news-page [class$="-card"]:hover,
.product-detail-page [class$="-card"]:hover {
    border-color: #d4552b;
}

/* --- FAQ 统一 --- */
.product-page .faq-question:hover, .contact-page .faq-question:hover,
.news-page .faq-question:hover, .product-detail-page .faq-question:hover,
.case-detail-page .faq-question:hover {
    color: #d4552b;
}

/* --- 标签/Tab 活跃态 --- */
.product-page [class$="-tab"].active,
.news-page [class$="-item"].active {
    color: #d4552b;
    border-color: #d4552b;
}

/* --- 徽章与装饰 --- */
[class$="-badge"] { background: #d4552b; }
[class$="-dot"].dot-1, [class$="-dot"]:nth-child(1) { background: #d4552b; }

/* --- 加载动画 --- */
.loading-spinner, [class*="loading"] [class*="spinner"] { border-top-color: #d4552b; }

/* --- 图标 SVG 描边色 --- */
.product-page svg[stroke="#0071e3"], .contact-page svg[stroke="#0071e3"],
.news-page svg[stroke="#0071e3"], .product-detail-page svg[stroke="#0071e3"],
.news-detail-page svg[stroke="#0071e3"], .case-detail-page svg[stroke="#0071e3"] {
    stroke: #d4552b;
}

/* =============================================
   性能优化 — GPU 加速 + 懒渲染
   ============================================= */
/* AOS 元素不预先声明 will-change，让浏览器在动画触发时自动优化合成层 */

/* 产品网格：使用 content-visibility 延迟渲染屏外内容，减少初始布局开销 */
.product-grid {
    content-visibility: auto;
    contain-intrinsic-size: auto 500px;
}

/* Swiper 容器不再强制 GPU 合成层 — Swiper 内部已自行优化 */

/* 替换 transition:all 为精确属性，避免非必要计算 */
.btn-banner-outline,
.btn-primary,
.btn-link,
.product-card,
.product-card img,
.cases-img-item img,
.advantage-card,
.news-featured img,
.news-item,
.nav-link,
.nav-cta {
    transition-property: transform, opacity, background-color, border-color, color, box-shadow;
}
.btn-primary,
.nav-cta,
.btn-banner-outline {
    transition-duration: 0.2s;
    transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ================================================================
   禄存科技 LUCUNDA - 全站统一设计系统 v2.0
   设计方向: Trust & Authority + Industrial Premium
   强调: #E25D2A (品牌橙)
   背景: #F8FAFC / #FFFFFF   |  深色区: #0A1628 (冷海军蓝)
   ================================================================ */

/* ----- 设计Token (CSS变量) ----- */
:root {
    --color-primary: #1c1815;
    --color-accent: #E25D2A;
    --color-accent-hover: #C44A1F;
    --color-accent-light: rgba(226, 93, 42, 0.06);
    --color-accent-soft: rgba(226, 93, 42, 0.12);
    --color-accent-glow: rgba(226, 93, 42, 0.25);
    --color-bg: #F8FAFC;
    --color-surface: #FFFFFF;
    --color-muted: #E8ECF1;
    --color-border: #E2E8F0;
    --color-text: #1C1815;
    --color-text-secondary: #475569;
    --color-text-muted: #64748B;
    --color-text-light: #94A3B8;
    --color-on-dark: #FFFFFF;
    --color-on-dark-muted: rgba(255, 255, 255, 0.55);
    --color-on-dark-dim: rgba(255, 255, 255, 0.08);
    --color-success: #16A34A;
    --color-success-bg: #E8F5E9;
    --color-error: #DC2626;
    --color-error-bg: #FFEBEE;
    
    --font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --radius-full: 50%;
    --shadow-sm: 0 2px 8px rgba(226, 93, 42, 0.04);
    --shadow-md: 0 8px 24px rgba(226, 93, 42, 0.06);
    --shadow-lg: 0 12px 40px rgba(226, 93, 42, 0.08);
    --shadow-accent: 0 8px 24px rgba(226, 93, 42, 0.18);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.4s ease;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 60px;
    --spacing-2xl: 80px;
    --spacing-3xl: 120px;
    --max-width: 1200px;
    --navbar-height: 70px;
}

/* ================================================================
   0. 全局滚动条修复 + 页面淡入
   ================================================================ */
html {
    overflow-x: hidden;
    scroll-behavior: smooth;
}
body {
    margin: 0;
    padding: 0;
    background: #FFFFFF;
    font-family: var(--font-family);
    font-weight: 500;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
}

/* 页面进入动画 */
.news-page,
.contact-page,
.subpage {
    animation: pageFadeIn 0.35s ease;
}
@keyframes pageFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ================================================================
   1. 子页面容器 & 基础重置
   ================================================================ */
.subpage,
.news-page,
.contact-page,
.detail-page,
.news-detail-page {
    width: 100%;
    background: var(--color-surface);
    font-family: var(--font-family);
    margin-top: var(--navbar-height);
    color: var(--color-text);
}

.subpage *,
.news-page *,
.contact-page *,
.detail-page *,
.news-detail-page * {
    box-sizing: border-box;
}

/* ----- 统一容器 ----- */
.subpage .container,
.news-container,
.contact-container,
.page-container,
.detail-page .container,
.news-detail-page .container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ================================================================
   2. 统一 Page Banner (Hero)
   ================================================================ */
.page-banner {
    position: relative;
    min-height: 400px;
    height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #F8FAFC 0%, #E8ECF1 100%);
    overflow: hidden;
}

.page-banner-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.page-banner-dot {
    position: absolute;
    border-radius: var(--radius-full);
    filter: blur(80px);
    opacity: 0.08;
    background: var(--color-accent);
}

.page-banner-dot:nth-child(1) {
    width: 500px;
    height: 500px;
    top: -150px;
    right: -100px;
}

.page-banner-dot:nth-child(2) {
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: -100px;
}

.page-banner-dot:nth-child(3) {
    width: 250px;
    height: 250px;
    top: 30%;
    left: 20%;
}

.page-banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
}

.page-banner-stamp {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 6px;
    color: var(--color-text-light);
    font-weight: 500;
    margin-bottom: 16px;
}

.page-banner-title {
    font-size: 56px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.page-banner-accent {
    color: var(--color-accent);
    font-weight: 700;
}

.page-banner-subtitle {
    font-size: 16px;
    color: var(--color-text-muted);
    font-weight: 400;
    letter-spacing: 1px;
}

/* Dark banner variant - 冷海军蓝工业风 */
.page-banner-dark {
    background: linear-gradient(160deg, #0A1628 0%, #112240 40%, #0A1628 100%);
    min-height: 560px;
    position: relative;
}
.page-banner-dark::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 60%, rgba(226,93,42,0.04) 0%, transparent 55%),
                radial-gradient(ellipse at 70% 30%, rgba(96,165,250,0.04) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}
.page-banner-dark .page-banner-bg {
    background: none;
}
.page-banner-dark .page-banner-stamp {
    font-size: 13px;
    letter-spacing: 8px;
    color: #94A3B8;
    font-weight: 600;
    margin-bottom: 20px;
}
.page-banner-dark .page-banner-title {
    font-size: 64px;
    font-weight: 800;
    color: #FFFFFF;
    letter-spacing: -1px;
    line-height: 1.1;
    margin-bottom: 20px;
}
.page-banner-dark .page-banner-accent {
    color: #E25D2A;
}
.page-banner-dark .page-banner-subtitle {
    font-size: 17px;
    color: rgba(255,255,255,0.5);
    font-weight: 400;
    letter-spacing: 2px;
}
.page-banner-dark .page-banner-content {
    padding: 100px 20px 80px;
    position: relative;
    z-index: 2;
}
.page-banner-dark .page-banner-dot {
    opacity: 0.03;
}
/* 网格图案 - 统一所有深色Hero */
.page-banner-grid {
    position: absolute;
    inset: 0;
    pointer-events: none;
    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;
    mask-image: radial-gradient(ellipse at center, black 35%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 35%, transparent 75%);
    z-index: 1;
}

/* Hero Badge - 胶囊标签 (在深色 Banner 内) */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 24px;
    border: 1px solid rgba(226, 93, 42, 0.30);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
    color: #F08C55;
    letter-spacing: 1px;
    margin-bottom: 40px;
    background: rgba(226, 93, 42, 0.06);
    backdrop-filter: blur(4px);
}
.hero-badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #E25D2A;
    animation: heroBadgePulse 2s infinite;
}
@keyframes heroBadgePulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Hero Stats - 数字统计条 (在深色 Banner 内) */
.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0;
    margin-top: 44px;
}
.hero-stat {
    padding: 0 48px;
    text-align: center;
}
.hero-stat-num {
    display: block;
    font-size: 48px;
    font-weight: 800;
    color: #FFFFFF;
    line-height: 1;
    margin-bottom: 8px;
}
.hero-stat-num small {
    font-size: 22px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.4);
    margin-left: 2px;
}
.hero-stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.4);
    letter-spacing: 2px;
    font-weight: 400;
}
.hero-stat-divider {
    width: 1px;
    height: 48px;
    background: rgba(255, 255, 255, 0.12);
}

@media (max-width: 768px) {
    .hero-badge { margin-bottom: 28px; font-size: 12px; padding: 6px 18px; }
    .hero-stats { flex-wrap: wrap; gap: 24px; margin-top: 40px; }
    .hero-stat { padding: 0 20px; }
    .hero-stat-num { font-size: 36px; }
    .hero-stat-divider { display: none; }
}
@media (max-width: 480px) {
    .hero-stats { gap: 16px; margin-top: 32px; }
    .hero-stat { padding: 0 12px; }
    .hero-stat-num { font-size: 28px; }
    .hero-stat-num small { font-size: 16px; }
}

/* 滚动提示动画 —— 子页面深色 Banner 底部 */
.page-banner-dark .scroll-indicator {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}
.page-banner-dark .scroll-mouse {
    width: 26px;
    height: 42px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}
.page-banner-dark .scroll-wheel {
    width: 3px;
    height: 8px;
    background: rgba(255, 255, 255, 0.55);
    border-radius: 2px;
    animation: scrollWheel 1.6s ease-in-out infinite;
}
@keyframes scrollWheel {
    0% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(8px); opacity: 0.2; }
    100% { transform: translateY(0); opacity: 1; }
}

/* ================================================================
   3. 统一 Section 布局
   ================================================================ */
.page-section {
    padding: var(--spacing-2xl) 0;
}

.page-section-gray {
    background: var(--color-bg);
}

.page-section-white {
    background: var(--color-surface);
}

.page-section-dark {
    background: #1c1815;
    color: var(--color-on-dark);
}

/* ----- 统一 Section Header ----- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header .section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 2px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.section-header .section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.section-header .section-desc {
    font-size: 16px;
    color: var(--color-text-muted);
    margin-top: 12px;
}

/* ================================================================
   4. 统一卡片系统
   ================================================================ */
.card-grid {
    display: grid;
    gap: 24px;
}

.card-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.card-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.card-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    border: 1px solid var(--color-muted);
    transition: border-color var(--transition-normal);
    text-align: center;
    position: relative;
    overflow: hidden;
}
.card::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    background: radial-gradient(circle at 50% 50%, var(--color-accent) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
    z-index: 0;
}
.card:hover { border-color: var(--color-accent-soft); }
.card:hover::after { opacity: 0.06; }
.card > * { position: relative; z-index: 1; }

.card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: var(--color-accent-light);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.card:hover .card-icon {
    background: var(--color-accent-soft);
    transform: scale(1.05);
}

.card-icon svg {
    width: 36px;
    height: 36px;
}

.card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 10px;
}

.card p {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin: 0;
}

/* ================================================================
   5. 统一按钮系统
   ================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    letter-spacing: 0.5px;
    gap: 8px;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
    color: #fff;
    text-decoration: none;
}

.btn-primary:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-outline {
    background: transparent;
    color: var(--color-accent);
    border: 1px solid rgba(226, 93, 42, 0.3);
}

.btn-outline:hover {
    background: var(--color-accent-light);
    border-color: var(--color-accent);
    color: var(--color-accent);
    text-decoration: none;
}

.btn-dark-outline {
    background: transparent;
    color: var(--color-on-dark);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-dark-outline:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--color-on-dark);
    color: var(--color-on-dark);
    text-decoration: none;
}

.btn-large {
    padding: 14px 40px;
    font-size: 16px;
}

.btn-ghost {
    border: none;
    background: none;
    color: var(--color-accent);
    padding: 8px 16px;
}

.btn-ghost:hover {
    background: var(--color-accent-light);
}

/* ================================================================
   6. 统一表单系统
   ================================================================ */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-muted);
    border-radius: var(--radius-sm);
    font-size: 15px;
    color: var(--color-text);
    background: var(--color-surface);
    transition: border-color var(--transition-fast);
    font-family: var(--font-family);
}

.form-control:focus {
    border-color: var(--color-accent);
    outline: none;
    box-shadow: 0 0 0 3px var(--color-accent-light);
}

.form-control::placeholder {
    color: #bbb;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* ================================================================
   7. 统一数据统计
   ================================================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
}

.stat-item:hover { }

.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: 4px;
    line-height: 1.1;
}

.stat-label {
    font-size: 13px;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ================================================================
   8. 统一 FAQ 手风琴
   ================================================================ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--color-muted);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px 0;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition-fast);
}

.faq-question:hover {
    color: var(--color-accent);
}

.faq-icon {
    font-size: 20px;
    color: #999;
    transition: transform var(--transition-normal);
    flex-shrink: 0;
    margin-left: 12px;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--color-accent);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-answer p {
    padding-bottom: 20px;
    color: var(--color-text-secondary);
    font-size: 15px;
    line-height: 1.8;
    margin: 0;
}

/* ================================================================
   9. Service 服务承诺 —— 非对称卡片布局
   ================================================================ */
.service-promise-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 32px;
    align-items: stretch;
}

.promise-hero-card {
    background: linear-gradient(145deg, #0A1628 0%, #112240 100%);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.promise-hero-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin: 20px 0 16px;
    color: #fff;
}
.promise-hero-card p {
    font-size: 15px;
    line-height: 1.8;
    color: rgba(255,255,255,0.72);
    margin: 0;
}
.promise-hero-icon {
    width: 56px;
    height: 56px;
    background: rgba(226,93,42,0.15);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}
.promise-hero-icon svg {
    width: 36px;
    height: 36px;
}

.promise-side-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.promise-side-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: box-shadow var(--transition-fast);
}
.promise-side-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent-soft);
}
.promise-side-card h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 6px;
}
.promise-side-card p {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin: 0;
}
.promise-side-icon {
    width: 44px;
    height: 44px;
    background: var(--color-accent-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.promise-side-icon svg {
    width: 28px;
    height: 28px;
}

/* ================================================================
   10. Service 服务流程 —— 竖向时间线
   ================================================================ */
.service-timeline {
    max-width: 800px;
    margin: 60px auto 0;
    position: relative;
}
.service-timeline::before {
    content: '';
    position: absolute;
    left: 140px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, 
        var(--color-accent) 0%, 
        var(--color-accent) 30%, 
        var(--color-muted) 30%, 
        var(--color-muted) 100%);
}

.tl-step {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    padding-bottom: 48px;
    position: relative;
}
.tl-step:last-child {
    padding-bottom: 0;
}

.tl-step-marker {
    min-width: 140px;
    text-align: right;
    padding-right: 20px;
    padding-top: 2px;
}
.tl-step-marker span {
    display: inline-block;
    background: var(--color-accent);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 20px;
    letter-spacing: 0.5px;
    position: relative;
    z-index: 1;
}

.tl-step-body {
    flex: 1;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 3px solid transparent;
    border-radius: var(--radius-md);
    padding: 24px 28px;
    transition: border-left-color 0.3s ease, background 0.3s ease;
}
.tl-step:hover .tl-step-body {
    border-left-color: var(--color-accent);
    background: var(--color-accent-light);
}
.tl-step-body h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 8px;
}
.tl-step-body p {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin: 0;
}

/* ================================================================
   11. Service 服务网络
   ================================================================ */
.network-layout {
    display: flex;
    flex-direction: column;
    gap: 32px;
}
.network-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}
.network-map img {
    width: 100%;
    height: auto;
    display: block;
}

.network-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.network-stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    text-align: center;
    transition: box-shadow var(--transition-fast);
}
.network-stat-card:hover {
    box-shadow: var(--shadow-md);
}
.network-stat-num {
    display: block;
    font-size: 36px;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1.1;
    margin-bottom: 6px;
}
.network-stat-num small {
    font-size: 22px;
    font-weight: 600;
}
.network-stat-label {
    display: block;
    font-size: 13px;
    color: var(--color-text-muted);
    letter-spacing: 0.5px;
}

/* ================================================================
   12. 统一时间轴
   ================================================================ */
.timeline {
    margin-top: 60px;
}

.timeline-item {
    display: flex;
    gap: 60px;
    padding: 32px 0;
    border-bottom: 1px solid var(--color-muted);
}

.timeline-item:last-child {
    border-bottom: none;
}

.timeline-year {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-accent);
    min-width: 100px;
    flex-shrink: 0;
}

.timeline-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.timeline-content p {
    font-size: 15px;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin: 0;
}

/* ================================================================
   13. 统一面包屑
   ================================================================ */
.breadcrumb {
    font-size: 13px;
    color: var(--color-text-light);
    padding: 24px 0 0;
    max-width: var(--max-width);
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
}

.breadcrumb a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--color-accent);
}

.breadcrumb .separator {
    margin: 0 8px;
    color: #ccc;
}

.breadcrumb .current {
    color: var(--color-text);
}

/* ================================================================
   14. 统一徽章 & 标签
   ================================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-muted);
    border-radius: 40px;
    font-size: 13px;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--color-accent);
    flex-shrink: 0;
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-bg);
    border-radius: 30px;
    font-size: 12px;
    color: var(--color-text-muted);
}

.tag-active {
    background: var(--color-accent);
    color: #fff;
}

/* ================================================================
   15. 统一认证卡片
   ================================================================ */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.cert-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-muted);
    transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.45s ease;
}

.cert-card:hover {
    transform: perspective(800px) rotateY(-1.5deg) rotateX(1.5deg);
    box-shadow: var(--shadow-md);
}

.cert-img {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}

.cert-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.cert-card:hover .cert-img img {
    transform: scale(1.04);
}

.cert-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    color: var(--color-on-dark);
    font-size: 16px;
    font-weight: 600;
}

.cert-body {
    padding: 24px;
}

.cert-body h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}

.cert-body>p {
    font-size: 14px;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.cert-body ul {
    list-style: none;
    padding: 0;
}

.cert-body ul li {
    font-size: 13px;
    color: var(--color-text-muted);
    padding: 4px 0 4px 16px;
    position: relative;
}

.cert-body ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

.badge-row {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 20px;
}

/* ================================================================
   13. 统一流程步骤
   ================================================================ */
.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.process-item {
    text-align: center;
    padding: 24px;
}

.process-num {
    font-size: 48px;
    font-weight: 800;
    color: var(--color-accent-light);
    background: none;
    margin-bottom: 16px;
    line-height: 1;
}

.process-item h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.process-item p {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ================================================================
   14. 统一加载动画
   ================================================================ */
.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-muted);
    border-top-color: var(--color-accent);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ================================================================
   15. 统一分类导航
   ================================================================ */
.category-nav {
    padding: 30px 0 10px;
    background: var(--color-surface);
}

.category-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.category-tab {
    padding: 9px 22px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-muted);
    background: var(--color-bg);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    display: inline-block;
}

.category-tab:hover {
    background: var(--color-muted);
    color: var(--color-text);
    text-decoration: none;
}

.category-tab.active {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.category-tab.active:hover {
    color: #fff;
}

/* ================================================================
   16. 统一 CTA Section
   ================================================================ */
.subpage .cta-box {
    text-align: center;
    background: linear-gradient(135deg, var(--color-bg), var(--color-surface));
    border-radius: 16px;
    padding: 60px 40px;
    border: 1px solid var(--color-muted);
}

.subpage .cta-box h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
}

.subpage .cta-box>p {
    font-size: 16px;
    color: var(--color-text-muted);
    margin-bottom: 30px;
}

.subpage .cta-box .cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 20px;
}

.subpage .cta-box .cta-note {
    font-size: 13px;
    color: #bbb;
}

/* ================================================================
   17. 统一新闻卡片
   ================================================================ */
.news-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-muted);
    transition: border-color var(--transition-normal);
}

.news-card:hover { border-color: var(--color-accent); }

.news-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.news-card-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--color-bg);
}

.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.news-card:hover .news-card-image img {
    transform: scale(1.05);
}

.news-card-date {
    position: absolute;
    bottom: 16px;
    left: 16px;
    background: rgba(255, 255, 255, 0.95);
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}

.news-card-content {
    padding: 20px;
}

.news-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 10px;
    line-height: 1.4;
}

.news-card-excerpt {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ================================================================
   21. 统一分页
   ================================================================ */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 10px;
    border: 1px solid var(--color-muted);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.page-link:hover:not(.disabled) {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
    text-decoration: none;
}

.page-link.active {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.page-link.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.page-dots {
    color: #999;
    padding: 0 4px;
}

/* ================================================================
   19. 统一产品卡片
   ================================================================ */
.product-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-muted);
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-normal);
    display: flex;
    flex-direction: column;
}
.product-card:hover { border-color: var(--color-accent-soft); box-shadow: 0 12px 40px rgba(0,0,0,0.07); transform: translateY(-3px); }

.product-link-wrapper {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

.product-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: #f4f5f8;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 36px;
    flex-shrink: 0;
}

.product-image img {
    width: 92%;
    height: 92%;
    object-fit: contain;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-actions-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.92);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.product-card:hover .product-actions-overlay {
    opacity: 1;
}

.product-info {
    padding: 28px 24px 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
    text-align: center;
}

.product-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
    line-height: 1.3;
}

.product-desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-meta {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.product-meta span {
    font-size: 11px;
    padding: 2px 8px;
    background: var(--color-bg);
    border-radius: 3px;
    color: var(--color-text-muted);
}

.product-footer {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #f3f4f6;
}

.product-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    border-bottom: 1.5px solid var(--color-accent);
    padding-bottom: 4px;
}

.product-link:hover {
    transform: none;
}

.product-link::after {
    content: '\2192';
    font-size: 16px;
    transition: transform var(--transition-fast);
}
.product-card:hover .product-link {
    color: var(--color-accent);
}
.product-card:hover .product-link::after {
    transform: translateX(4px);
}

/* ================================================================
   20. 响应式设计
   ================================================================ */
@media (max-width: 1200px) {
    .page-banner-title {
        font-size: 48px;
    }
}

@media (max-width: 1024px) {
    .page-banner {
        height: 45vh;
        min-height: 350px;
    }
    .page-banner-title {
        font-size: 42px;
    }
    .section-title,
    .section-header .section-title {
        font-size: 32px;
    }
    .card-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    .card-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    .cert-grid {
        grid-template-columns: 1fr;
    }
    .product-image { padding: 24px; }
    .product-title { font-size: 18px; }
    .product-info { padding: 24px 18px 20px; }
    .products-grid { grid-template-columns: repeat(3, 1fr) !important; gap: 22px !important; }
}

@media (max-width: 768px) {
    .page-banner {
        height: 40vh;
        min-height: 320px;
    }
    .page-banner-title {
        font-size: 36px;
        letter-spacing: 1px;
    }
    .page-banner-stamp {
        font-size: 11px;
        letter-spacing: 4px;
    }
    .page-banner-subtitle {
        font-size: 14px;
    }
    .page-section {
        padding: 60px 0;
    }
    .section-header {
        margin-bottom: 40px;
    }
    .section-title,
    .section-header .section-title {
        font-size: 28px;
    }
    .card-grid-2,
    .card-grid-3,
    .card-grid-4 {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .stat-item {
        padding: 20px;
    }
    .stat-number {
        font-size: 36px;
    }
    .process-steps {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .process-item {
        padding: 16px;
    }
    .process-num {
        font-size: 36px;
    }
    .timeline-item {
        flex-direction: column;
        gap: 12px;
        padding: 24px 0;
    }
    .timeline-year {
        min-width: auto;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .cert-grid {
        grid-template-columns: 1fr;
    }
    .badge-row {
        gap: 12px;
    }
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    .product-link-wrapper { flex-direction: column; }
    .products-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 16px !important; }
    .product-image { padding: 24px; }
    .product-info { padding: 20px 14px 18px; }
    .product-title { font-size: 16px; }
    .product-desc { font-size: 13px; }
    .product-link { font-size: 13px; }
}

@media (max-width: 480px) {
    .page-banner {
        height: 35vh;
        min-height: 260px;
    }
    .page-banner-title {
        font-size: 28px;
    }
    .page-banner-stamp {
        letter-spacing: 3px;
    }
    .section-title,
    .section-header .section-title {
        font-size: 24px;
    }
    .card-grid-2,
    .card-grid-3,
    .card-grid-4 {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .stat-number {
        font-size: 32px;
    }
    .process-steps {
        grid-template-columns: 1fr;
    }
    .products-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 12px !important; }
    .product-image { padding: 18px; }
    .product-info { padding: 16px 10px 14px; }
    .product-title { font-size: 14px; }
    .product-desc { font-size: 12px; }
    .product-link { font-size: 12px; }
}

/* ================================================================
   20. 产品优势面板 - Design System (离线测温仪 + 在线炉温监控)
   ================================================================ */

/* ----- 通用优势 Section ----- */
.product-adv-section {
    padding: 80px 0 70px;
    background: #fff;
    position: relative;
    overflow: hidden;
}
.adv-offline-section::before {
    content: '';
    position: absolute;
    top: -160px;
    right: -160px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(226,93,42,0.03) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.adv-online-section {
    background: #fafbfc;
    border-top: 1px solid #eff1f4;
}

/* ----- 优势头部 ----- */
.adv-header {
    text-align: center;
    margin-bottom: 56px;
}
.adv-badge {
    display: inline-block;
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--color-accent);
    background: var(--color-accent-light);
    padding: 4px 14px;
    border-radius: 4px;
    margin-bottom: 16px;
}
.adv-title {
    font-size: 36px;
    font-weight: 700;
    color: #1c1815;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
    line-height: 1.3;
}
.adv-subtitle {
    font-size: 16px;
    color: #777;
    margin: 0;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ================================================================
   A. 离线测温仪 优势布局
   ================================================================ */
.adv-offline-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 48px;
    max-width: 1100px;
    margin: 0 auto 40px;
    align-items: start;
}
.adv-offline-hero {
    position: sticky;
    top: 90px;
}
.adv-offline-visual {
    padding: 32px 20px;
    border-radius: 16px;
    background: rgba(226,93,42,0.03);
    border: 1px solid rgba(226,93,42,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
}
.adv-offline-visual svg {
    width: 100%;
    max-width: 180px;
    height: auto;
}

/* 优势条目列表 */
.adv-offline-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.adv-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid #eff1f4;
}
.adv-item:last-child {
    border-bottom: none;
}
.adv-item-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    background: rgba(226,93,42,0.06);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.25s;
}
.adv-item:hover .adv-item-icon {
    background: rgba(226,93,42,0.12);
    transform: scale(1.05);
}
.adv-item-icon svg {
    width: 22px;
    height: 22px;
}
.adv-item-body {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.adv-item-body strong {
    font-size: 15px;
    font-weight: 600;
    color: #1c1815;
    line-height: 1.3;
}
.adv-item-body span {
    font-size: 13px;
    color: #888;
    line-height: 1.55;
}

/* 离线 CTA */
.adv-offline-cta {
    text-align: center;
    padding-top: 8px;
}
.adv-cta-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: #1c1815;
    color: #fff;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.25s;
}
.adv-cta-link:hover {
    background: var(--color-accent);
    transform: translateX(4px);
    text-decoration: none;
    color: #fff;
}
.adv-cta-link svg {
    transition: transform 0.25s;
}
.adv-cta-link:hover svg {
    transform: translateX(3px);
}

/* ================================================================
   B. 在线炉温监控系统 优势布局
   ================================================================ */

/* 通用优势卡片 */
.adv-online-common {
    max-width: 1100px;
    margin: 0 auto 48px;
}
.adv-section-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 2px;
    margin-bottom: 20px;
    padding-bottom: 8px;
    border-bottom: 2px solid rgba(226,93,42,0.15);
    display: inline-block;
}
.adv-online-common-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.adv-common-card {
    background: #fff;
    border-radius: 12px;
    padding: 28px 20px;
    border: 1px solid #eef0f2;
    text-align: center;
    transition: all 0.3s;
}
.adv-common-card:hover {
    border-color: var(--color-accent);
}
.adv-common-card-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 14px;
    background: rgba(226,93,42,0.06);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s;
}
.adv-common-card:hover .adv-common-card-icon {
    background: rgba(226,93,42,0.12);
    transform: scale(1.05);
}
.adv-common-card-icon svg {
    width: 28px;
    height: 28px;
}
.adv-common-card strong {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: #1c1815;
    margin-bottom: 6px;
}
.adv-common-card span {
    font-size: 13px;
    color: #888;
    line-height: 1.5;
}

/* Tab 切换控制区 */
.adv-online-tabs {
    max-width: 1100px;
    margin: 0 auto;
}
.adv-tabs-nav {
    display: flex;
    gap: 0;
    border-bottom: 2px solid #eef0f2;
    margin-bottom: 28px;
}
.adv-tab-btn {
    padding: 12px 24px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    font-size: 14px;
    font-weight: 500;
    color: #888;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}
.adv-tab-btn:hover {
    color: #1c1815;
}
.adv-tab-btn.active {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
    font-weight: 600;
}

/* Tab 面板 */
.adv-tab-panel {
    display: none;
}
.adv-tab-panel.active {
    display: block;
    animation: advFadeIn 0.3s ease;
}
@keyframes advFadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Tab 内容卡片网格 */
.adv-tab-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.adv-tab-card {
    background: #fff;
    border-radius: 10px;
    padding: 24px 20px;
    border: 1px solid #eef0f2;
    text-align: center;
    transition: all 0.3s;
}
.adv-tab-card:hover {
    border-color: var(--color-accent);
}
.adv-tab-card-icon {
    width: 40px;
    height: 40px;
    margin: 0 auto 12px;
    background: rgba(226,93,42,0.06);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s;
}
.adv-tab-card:hover .adv-tab-card-icon {
    background: rgba(226,93,42,0.12);
}
.adv-tab-card-icon svg {
    width: 22px;
    height: 22px;
}
.adv-tab-card strong {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #1c1815;
    margin-bottom: 6px;
}
.adv-tab-card span {
    font-size: 13px;
    color: #888;
    line-height: 1.5;
}
.adv-tab-card-wide {
    grid-column: 1 / -1;
}

/* 在线系列 CTA */
.adv-online-cta {
    text-align: center;
    padding-top: 40px;
}
.adv-cta-link-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    background: var(--color-accent);
    color: #fff;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.25s;
}
.adv-cta-link-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(226,93,42,0.28);
    text-decoration: none;
    color: #fff;
}
.adv-cta-link-primary svg {
    transition: transform 0.25s;
}
.adv-cta-link-primary:hover svg {
    transform: translateX(3px);
}
.adv-cta-contact {
    margin-top: 16px;
    font-size: 14px;
    color: #999;
}
.adv-cta-contact strong {
    color: #1c1815;
    font-weight: 600;
}

/* ================================================================
   20.1 优势面板响应式
   ================================================================ */
@media (max-width: 1024px) {
    .adv-offline-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .adv-offline-hero {
        position: static;
        max-width: 280px;
        margin: 0 auto;
    }
    .adv-online-common-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .adv-tab-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .product-adv-section {
        padding: 60px 0 50px;
    }
    .adv-title {
        font-size: 26px;
    }
    .adv-header {
        margin-bottom: 36px;
    }
    .adv-offline-list .adv-item {
        padding: 16px 0;
    }
    .adv-item-icon {
        width: 38px;
        height: 38px;
        min-width: 38px;
    }
    .adv-online-common-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .adv-tabs-nav {
        flex-wrap: wrap;
    }
    .adv-tab-btn {
        padding: 10px 16px;
        font-size: 13px;
    }
    .adv-tab-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 480px) {
    .adv-title {
        font-size: 22px;
    }
    .adv-subtitle {
        font-size: 14px;
    }
    .adv-item-body strong {
        font-size: 14px;
    }
    .adv-common-card {
        padding: 22px 16px;
    }
}

