:root {
    --brand-red: #C41E20; /* 玛哈特红 */
    --text-main: #1D1D1F; /* 高级深灰/近黑 */
    --text-light: #86868B; /* 辅助文字灰 */
    --bg-gray: #F5F5F7; /* 苹果风浅灰背景 */
    --border-light: #E5E5EA;
}

/*.main-header {*/
/*    background-color: #FFF;*/
/*    color: var(--text-dark);*/
/*}*/

/*.header-actions .hotline-box span {*/
/*    color: #999;*/
/*}*/

/*.btn-lang {*/
/*    color: var(--text-dark);*/
/*}*/

/* 通用区块设置 */
.section { padding: 100px 10%; }
.bg-gray { background-color: var(--bg-gray); }
.section-title { text-align: center; font-size: 40px; font-weight: 700; margin-bottom: 20px; color: var(--text-main); letter-spacing: 1px; }
.section-subtitle { text-align: center; font-size: 18px; color: var(--text-light); margin-bottom: 70px; font-weight: 400; max-width: 750px; margin-left: auto; margin-right: auto; }

/* 首屏 Hero - 品牌感大气排版 */
.hero { 
    background-color: var(--bg-gray); 
    padding: 120px 10% 100px; 
    text-align: center;
    overflow: hidden;
    position: relative;
}
.hero h1 { font-size: 56px; font-weight: 800; margin-bottom: 24px; color: var(--text-main); letter-spacing: -1px; }
.hero h1 span { color: var(--brand-red); }
.hero p { font-size: 22px; color: var(--text-light); margin-bottom: 40px; max-width: 800px; margin-left: auto; margin-right: auto; font-weight: 400; }
.btn-primary { 
    background-color: var(--brand-red); color: #fff; padding: 16px 40px; border-radius: 30px;
    text-decoration: none; font-size: 18px; font-weight: 600; display: inline-block;
    transition: all 0.3s ease; box-shadow: 0 4px 15px rgba(196, 30, 32, 0.3);
}
.btn-primary:hover { background-color: #A01719; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(196, 30, 32, 0.4); }

/* 核心优势 - 轻量卡片 */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 40px; }
.feature-card { 
    background: #fff; padding: 50px 40px; border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.04);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: 1px solid rgba(0,0,0,0.02);
}
.feature-card:hover { transform: translateY(-8px); box-shadow: 0 20px 50px rgba(0,0,0,0.08); }
.feature-icon { width: 60px; height: 60px; background: rgba(196, 30, 32, 0.05); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 24px; color: var(--brand-red); font-size: 24px; font-weight: bold; }
.feature-card h3 { font-size: 22px; margin-bottom: 16px; color: var(--text-main); font-weight: 600;}
.feature-card p { color: var(--text-light); font-size: 16px; line-height: 1.7; }

/* 加工参数 - 极简科技感表格 */
.specs-container { max-width: 1000px; margin: 0 auto; background: #fff; border-radius: 16px; box-shadow: 0 10px 40px rgba(0,0,0,0.04); overflow: hidden; border: 1px solid var(--border-light); }
.spec-row { display: flex; border-bottom: 1px solid var(--border-light); }
.spec-row:last-child { border-bottom: none; }
.spec-label { width: 30%; padding: 30px 40px; background: var(--bg-gray); font-size: 18px; font-weight: 600; color: var(--text-main); display: flex; align-items: center; }
.spec-value { width: 70%; padding: 30px 40px; font-size: 18px; color: #444; }
.spec-value strong { color: var(--brand-red); font-size: 22px; }

/* 真实案例 - 对比卡片 */
.cases-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.case-card { background: var(--bg-gray); border-radius: 16px; padding: 40px; }
.case-header { margin-bottom: 30px; }
.case-header h3 { font-size: 24px; color: var(--text-main); margin-bottom: 10px; }
.case-header p { color: var(--text-light); font-size: 15px; }
.compare-box { display: flex; gap: 20px; }
.c-item { flex: 1; background: #fff; padding: 30px 20px; border-radius: 12px; text-align: center; }
.c-item p.title { font-size: 14px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-light); margin-bottom: 8px; }
.c-item h4 { font-size: 18px; color: var(--text-main); }
.c-item.highlight { border: 2px solid var(--brand-red); position: relative; }
.c-item.highlight p.title { color: var(--brand-red); font-weight: bold; }