/* ============ 酱山翁官网 全局样式 ============ */
:root{
  --green:#3E5A38;        /* 主色 橄榄绿 */
  --green-dark:#2E4430;
  --green-light:#5E7A52;
  --orange:#C9762D;       /* 强调 陶土橙 */
  --orange-dark:#A85E1F;
  --red:#8C3B2E;          /* 酱红 */
  --cream:#F7F3EC;        /* 背景 米白 */
  --dark:#2E2A24;         /* 深色 酱褐 */
  --gray:#6B6257;
  --line:#E4DCCE;
  --white:#FFFFFF;
  --radius:14px;
  --shadow:0 8px 30px rgba(46,42,36,.08);
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--font);color:var(--dark);background:var(--cream);line-height:1.7;font-size:16px;}
a{text-decoration:none;color:inherit;}
img{max-width:100%;display:block;}
.container{max-width:1180px;margin:0 auto;padding:0 24px;}
section{padding:72px 0;}
h1,h2,h3,h4{line-height:1.3;font-weight:700;}

/* ---------- 顶部导航 ---------- */
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
.header .container{display:flex;align-items:center;justify-content:space-between;height:72px;}
.logo{display:flex;align-items:center;gap:12px;}
.logo-mark{width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,var(--green),var(--green-dark));display:flex;align-items:center;justify-content:center;color:var(--cream);font-weight:800;font-size:20px;}
.logo-txt b{font-size:22px;letter-spacing:2px;color:var(--green-dark);}
.logo-txt span{display:block;font-size:11px;color:var(--gray);letter-spacing:.5px;}
.nav{display:flex;align-items:center;gap:28px;}
.nav a{color:var(--dark);font-size:15px;transition:color .2s;}
.nav a:hover{color:var(--orange);}
.nav a.active{color:var(--orange);font-weight:600;}
.btn{display:inline-block;padding:11px 26px;border-radius:30px;font-weight:600;font-size:15px;transition:all .25s;cursor:pointer;border:none;}
.btn-primary{background:var(--orange);color:#fff;}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(201,118,45,.3);}
.btn-outline{border:2px solid var(--green);color:var(--green);background:transparent;}
.btn-outline:hover{background:var(--green);color:#fff;}
.btn-light{background:#fff;color:var(--green-dark);}
.btn-light:hover{background:var(--cream);}
.menu-toggle{display:none;background:none;border:none;font-size:26px;cursor:pointer;}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;color:#fff;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(30,28,22,.88) 30%,rgba(30,28,22,.45) 70%,rgba(30,28,22,.25));}
.hero .container{position:relative;z-index:2;padding-top:60px;padding-bottom:60px;}
.hero .tagline{display:inline-block;background:rgba(201,118,45,.9);color:#fff;padding:7px 18px;border-radius:30px;font-size:14px;font-weight:600;letter-spacing:1px;margin-bottom:22px;}
.hero h1{font-size:52px;font-weight:800;letter-spacing:2px;margin-bottom:18px;text-shadow:0 4px 20px rgba(0,0,0,.4);}
.hero h1 em{font-style:normal;color:#F2B566;}
.hero p.sub{font-size:18px;max-width:640px;color:rgba(255,255,255,.92);margin-bottom:34px;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;}

/* ---------- 信任数据条 ---------- */
.stats{background:var(--green-dark);color:#fff;}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:44px 24px;text-align:center;}
.stat b{display:block;font-size:34px;font-weight:800;color:#F2B566;margin-bottom:4px;}
.stat span{font-size:14px;color:rgba(255,255,255,.85);}

/* ---------- 通用标题 ---------- */
.section-head{text-align:center;max-width:760px;margin:0 auto 48px;}
.section-head .eyebrow{display:inline-block;color:var(--orange);font-weight:700;letter-spacing:3px;font-size:13px;margin-bottom:12px;}
.section-head h2{font-size:36px;color:var(--green-dark);margin-bottom:14px;}
.section-head p{color:var(--gray);}

/* ---------- 解决方案卡片 ---------- */
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;}
.card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(46,42,36,.14);}
.card-img{height:200px;background-size:cover;background-position:center;}
.card-body{padding:26px;}
.card-body h3{font-size:20px;color:var(--green-dark);margin-bottom:10px;}
.card-body p{color:var(--gray);font-size:14.5px;}
.card-body .card-tag{display:inline-block;margin-top:14px;color:var(--orange);font-weight:600;font-size:14px;}

/* ---------- 产品 ---------- */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.product{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);text-align:center;transition:transform .3s;}
.product:hover{transform:translateY(-6px);}
.product-img{height:220px;background-size:cover;background-position:center;}
.product-name{font-size:18px;font-weight:700;color:var(--green-dark);padding:16px 12px 4px;}
.product-spec{font-size:13px;color:var(--gray);padding:0 12px 6px;}
.product-price{color:var(--orange);font-weight:700;font-size:16px;padding:0 12px 16px;}
.product-price small{color:var(--gray);font-weight:400;font-size:12px;}

/* ---------- 关于/实力 ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;}
.about-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.about-img img{height:420px;width:100%;object-fit:cover;}
.about-txt h2{font-size:32px;color:var(--green-dark);margin-bottom:16px;}
.about-txt p{color:var(--gray);margin-bottom:16px;}
.feat-list{list-style:none;margin-top:18px;}
.feat-list li{padding:12px 0;border-bottom:1px dashed var(--line);display:flex;gap:12px;align-items:flex-start;}
.feat-list li b{color:var(--green-dark);}
.feat-list .ic{color:var(--orange);font-weight:800;}

/* ---------- 双栏亮点 ---------- */
.split{background:#fff;}
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;}
.split-img{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.split-img img{height:400px;width:100%;object-fit:cover;}
.split-txt h2{font-size:32px;color:var(--green-dark);margin-bottom:14px;}
.split-txt p{color:var(--gray);margin-bottom:14px;}
.ticks{list-style:none;margin:16px 0;}
.ticks li{padding:7px 0;display:flex;gap:10px;}
.ticks .ck{color:var(--orange);font-weight:800;}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.news{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}
.news .date{font-size:13px;color:var(--orange);font-weight:600;}
.news h3{font-size:17px;color:var(--green-dark);margin:10px 0 8px;}
.news p{font-size:14px;color:var(--gray);}
.news a.more{display:inline-block;margin-top:12px;color:var(--orange);font-weight:600;font-size:14px;}

/* ---------- CTA ---------- */
.cta{background:linear-gradient(120deg,var(--green-dark),var(--green));color:#fff;text-align:center;}
.cta h2{font-size:34px;margin-bottom:14px;}
.cta p{color:rgba(255,255,255,.88);max-width:640px;margin:0 auto 30px;}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.footer{background:var(--dark);color:rgba(255,255,255,.8);padding:56px 0 30px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px;margin-bottom:34px;}
.footer h4{color:#fff;font-size:16px;margin-bottom:14px;}
.footer a{display:block;color:rgba(255,255,255,.72);font-size:14px;padding:5px 0;transition:color .2s;}
.footer a:hover{color:#F2B566;}
.footer .brand-desc{font-size:14px;margin-top:12px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.15);padding-top:20px;font-size:13px;color:rgba(255,255,255,.55);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}

/* ---------- 页面头横幅 ---------- */
.page-hero{background:linear-gradient(120deg,var(--green-dark),var(--green));color:#fff;padding:70px 0;text-align:center;}
.page-hero h1{font-size:38px;margin-bottom:10px;}
.page-hero p{color:rgba(255,255,255,.85);}

/* ---------- 产品页 ---------- */
.cat-title{font-size:22px;color:var(--green-dark);margin:40px 0 20px;padding-left:14px;border-left:4px solid var(--orange);}

/* ---------- 方案流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px;}
.step{background:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);position:relative;}
.step .no{position:absolute;top:-16px;left:22px;width:40px;height:40px;border-radius:50%;background:var(--orange);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:18px;}
.step h3{color:var(--green-dark);margin-bottom:8px;font-size:17px;}
.step p{color:var(--gray);font-size:14px;}

/* ---------- 联系表单 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:44px;}
.contact-info h2{color:var(--green-dark);margin-bottom:14px;font-size:28px;}
.contact-info p{color:var(--gray);margin-bottom:20px;}
.info-row{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line);}
.info-row .ic{color:var(--orange);font-weight:800;min-width:20px;}
.info-row b{color:var(--green-dark);}
.form{background:#fff;border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);}
.form label{display:block;font-size:14px;font-weight:600;color:var(--green-dark);margin:16px 0 6px;}
.form input,.form select,.form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-family:var(--font);font-size:15px;background:var(--cream);}
.form input:focus,.form textarea:focus,.form select:focus{outline:2px solid var(--orange);border-color:var(--orange);background:#fff;}
.form textarea{min-height:110px;resize:vertical;}
.form .btn{margin-top:20px;width:100%;}

/* ---------- 响应式 ---------- */
@media(max-width:960px){
  .nav{position:fixed;right:-100%;top:72px;flex-direction:column;background:#fff;width:260px;height:100vh;padding:30px;gap:20px;box-shadow:-10px 0 30px rgba(0,0,0,.1);transition:right .3s;align-items:flex-start;}
  .nav.open{right:0;}
  .menu-toggle{display:block;}
  .stats .container{grid-template-columns:repeat(2,1fr);}
  .solution-grid,.news-grid{grid-template-columns:1fr;}
  .product-grid{grid-template-columns:repeat(2,1fr);}
  .about-grid,.split-grid,.contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .hero h1{font-size:36px;}
}
@media(max-width:560px){
  .product-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
}