:root{
  --brand:#155E54;
  --brand-2:#0F3D37;
  --accent:#E8732A;
  --accent-soft:#FBE9DC;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --ink:#1F2421;
  --muted:#6B7470;
  --line:#E4E0D8;
  --radius:16px;
  --shadow:0 8px 30px rgba(15,61,55,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;
  font-weight:700;font-size:15px;cursor:pointer;border:0;transition:.2s;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#d4641d;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}
.btn-ghost:hover{background:var(--brand);color:#fff}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,244,239,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--brand)}
.logo .mark{width:34px;height:34px;border-radius:9px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:18px}
.nav-links{display:flex;gap:28px;font-size:15px;font-weight:600;color:var(--muted)}
.nav-links a:hover,.nav-links a.active{color:var(--brand)}
.nav-cta{display:flex;align-items:center;gap:14px}
.phone{font-weight:800;color:var(--brand);font-size:15px}

/* ===== Hero ===== */
.hero{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden;background:linear-gradient(120deg,#0F3D37,#155E54);cursor:zoom-in}
.hero .hero-actions a{cursor:pointer}
.hero-zoom-hint{position:absolute;right:18px;bottom:16px;z-index:3;background:rgba(0,0,0,.45);color:#fff;font-size:13px;padding:6px 12px;border-radius:20px;pointer-events:none}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,61,55,.92),rgba(15,61,55,.45))}
.hero-inner{position:relative;z-index:2;padding:64px 0;color:#fff;max-width:640px}
.tag{display:inline-block;background:var(--accent);color:#fff;font-size:13px;font-weight:700;padding:5px 14px;border-radius:999px;margin-bottom:18px}
.hero h1{font-size:42px;line-height:1.2;font-weight:800;margin-bottom:16px}
.hero p{font-size:18px;opacity:.92;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:36px;margin-top:42px}
.hero-stats .num{font-size:30px;font-weight:800;color:var(--accent)}
.hero-stats .lbl{font-size:13px;opacity:.8}

/* ===== Section ===== */
.section{padding:72px 0}
.section h2{font-size:30px;font-weight:800;color:var(--brand-2);margin-bottom:8px}
.section .sub{color:var(--muted);margin-bottom:36px;font-size:16px}

/* layout 页：看户型 / 看工地 两个独立卡片区块（不混在一起） */
.section.block{
  padding:44px 40px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  max-width:1120px;
  margin:24px auto;
}
.section.block .wrap{padding:0}
.section.block + .section.block{margin-top:0}

/* dual entry */
.dual{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.entry{position:relative;border-radius:var(--radius);overflow:hidden;min-height:280px;display:flex;flex-direction:column;justify-content:flex-end;padding:32px;color:#fff;box-shadow:var(--shadow);transition:.25s}
.entry:hover{transform:translateY(-4px)}
.entry.a{background:linear-gradient(160deg,#155E54,#0F3D37)}
.entry.b{background:linear-gradient(160deg,#E8732A,#c25a1c)}
.entry h3{font-size:26px;font-weight:800;margin-bottom:8px}
.entry p{opacity:.92;margin-bottom:18px}
.entry .arrow{font-size:22px}

/* features */
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.feature .ico{width:46px;height:46px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:22px;font-weight:800;margin-bottom:14px}
.feature h4{font-size:17px;margin-bottom:8px;color:var(--brand-2)}
.feature p{font-size:14px;color:var(--muted)}

/* RP code block */
.rp{background:var(--brand-2);color:#fff;border-radius:var(--radius);padding:40px;display:grid;grid-template-columns:1.1fr 1fr;gap:30px;align-items:center}
.rp h3{font-size:24px;margin-bottom:12px}
.rp p{opacity:.9;font-size:15px;margin-bottom:10px}
.rp-code{background:#fff;color:var(--brand);font-family:"SF Mono",Consolas,monospace;font-weight:800;font-size:22px;padding:16px 20px;border-radius:12px;letter-spacing:1px}
.rp-example{font-size:13px;opacity:.8;margin-top:8px}

/* filter bar */
.filterbar{display:flex;flex-direction:column;gap:14px;align-items:stretch;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;margin-bottom:28px;box-shadow:var(--shadow)}
.filter-group{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.filter-group .lbl{font-weight:700;color:var(--brand-2);font-size:14px}
.chip{padding:8px 16px;border-radius:999px;border:1.5px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--muted);cursor:pointer}
.chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* grid */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.empty{padding:48px 0;text-align:center;color:var(--muted);grid-column:1/-1;font-size:15px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.2s;display:flex;flex-direction:column}
.card:hover{border-color:var(--accent)}
.card .plan{padding:18px;background:#FBFAF7;border-bottom:1px solid var(--line);display:grid;place-items:center}
.card .cover{background:#FBFAF7;border-bottom:1px solid var(--line);aspect-ratio:4/3;overflow:hidden}
.card-cover{width:100%;height:100%;object-fit:cover;display:block}
.card .body{padding:20px;flex:1;display:flex;flex-direction:column}
.card .rp-tag{display:inline-block;font-family:Consolas,monospace;font-weight:800;font-size:13px;color:var(--accent);background:var(--accent-soft);padding:4px 10px;border-radius:8px;margin-bottom:10px;align-self:flex-start}
.card h4{font-size:18px;color:var(--brand-2);margin-bottom:10px}
.card .meta{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:4px;margin-bottom:14px}
.card .meta b{color:var(--ink)}
.card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between}
.price{font-weight:800;color:var(--brand);font-size:16px}
.price small{font-weight:500;color:var(--muted);font-size:12px}

/* detail */
.detail-hero{background:linear-gradient(120deg,#0F3D37,#155E54);color:#fff;padding:48px 0}
.detail-hero .crumb{font-size:14px;opacity:.8;margin-bottom:10px}
.detail-hero h1{font-size:34px;font-weight:800}
.detail-hero .rpcode{font-family:Consolas,monospace;background:rgba(255,255,255,.15);padding:6px 14px;border-radius:8px;display:inline-block;margin-top:12px;font-weight:700;letter-spacing:1px}
.detail-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:start}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);margin-bottom:24px}
.panel h3{font-size:19px;color:var(--brand-2);margin-bottom:16px}
.spec{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.spec .row{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px}
.spec .row b{color:var(--brand-2)}
.ht-plan{width:100%;max-width:440px;margin:0 auto;background:#FBFAF7;border:1px solid var(--line);border-radius:12px;padding:18px}
.ht-plan svg{display:block}
.ht-plan-note{font-size:13px;color:var(--muted);text-align:center;margin-top:12px}
.ht-plans{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin-bottom:18px}
.ht-plan-img{display:block;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.ht-plan-img img{width:100%;height:auto;display:block}
.ht-plan-svg-title{font-size:14px;color:var(--brand-2);font-weight:600;margin:14px 0 10px}
.ht-plan-svg{width:100%;max-width:320px;margin:0 auto;background:#FBFAF7;border:1px solid var(--line);border-radius:12px;padding:18px}
.ht-plan-svg svg{display:block;width:100%;height:auto}

/* 详情页平面图轮播（左右切换，支持触摸滑动） */
.ht-carousel{position:relative;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.ht-car-view{overflow:hidden;touch-action:pan-y}
.ht-car-track{display:flex;transition:transform .3s ease}
.ht-car-track img{width:100%;flex:0 0 100%;height:auto;display:block;object-fit:contain;background:#fff}
.ht-car-btn{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border:0;border-radius:50%;background:rgba(15,61,55,.5);color:#fff;font-size:24px;line-height:1;cursor:pointer;display:grid;place-items:center;z-index:2;user-select:none}
.ht-car-btn:hover{background:rgba(15,61,55,.8)}
.ht-car-prev{left:10px}
.ht-car-next{right:10px}
.ht-car-count{position:absolute;top:10px;right:10px;background:rgba(0,0,0,.45);color:#fff;font-size:12px;padding:3px 10px;border-radius:20px;z-index:2}
.ht-car-dots{display:flex;justify-content:center;gap:8px;margin-top:12px}
.ht-car-dot{width:9px;height:9px;border-radius:50%;background:var(--line);cursor:pointer;transition:.2s;border:0;padding:0}
.ht-car-dot.active{background:var(--brand);width:22px;border-radius:5px}

/* 详情页平面图：所有图片直接纵向铺开展示（点击放大，灯箱内可左右滑动） */
.ht-stack{display:flex;flex-direction:column;gap:14px;padding:0}
.ht-stack-img{width:100%;height:auto;display:block;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;transition:transform .15s}
.ht-stack-img:hover{transform:scale(1.01)}
.photos{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.photos img{border-radius:12px;width:100%;height:140px;object-fit:cover;background:#ddd}
.photos .full{grid-column:1/-1;height:200px}
/* 看工地列表：3列 + 4:3 图片比例，避免高度方向被裁 */
#casesGrid{grid-template-columns:repeat(3,1fr);gap:18px}
#casesGrid .case-card img{aspect-ratio:4/3;height:auto;object-fit:cover}
.case-card{margin:0;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);display:block;text-decoration:none;color:inherit;cursor:pointer;transition:.2s}
.case-card:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(0,0,0,.12)}
.case-card .view-detail{margin-top:6px;color:var(--accent);font-size:13px;font-weight:600}
.case-card img{width:100%;height:180px;object-fit:cover;background:#ddd;display:block}
.case-card figcaption{padding:12px 14px;display:flex;flex-direction:column;gap:3px}
.case-card figcaption b{color:var(--brand-2);font-size:15px}
.case-card figcaption span{color:var(--muted);font-size:13px}
.case-card figcaption em{color:var(--accent);font-style:normal;font-size:12px}
/* 案例多图缩略图条 */
.case-card .case-main{cursor:pointer;transition:transform .2s}
.case-card .case-main:hover{transform:scale(1.02)}
.case-card:hover .case-main{transform:scale(1.02)}
.case-thumbs{display:flex;gap:6px;padding:8px 10px;background:#fafafa;border-top:1px solid var(--line)}
.case-thumb{width:52px;height:40px;object-fit:cover;border-radius:5px;border:2px solid transparent;cursor:pointer;transition:border-color .15s}
.case-thumb:hover{border-color:var(--accent)}
/* 案例详情页 · 实景图集（竖排大图） */
.case-photos{display:grid;grid-template-columns:1fr;gap:16px}
.case-photo{width:100%;height:320px;object-fit:cover;border-radius:12px;background:#ddd;display:block}
.case-photo-cap{font-size:13px;color:var(--muted);text-align:center;margin-top:2px}
@media(max-width:600px){.case-photo{height:220px}}
/* 灯箱 */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.88);display:none;align-items:center;justify-content:center;z-index:9999}
.lightbox.show{display:flex}
.lightbox img{max-width:92vw;max-height:86vh;object-fit:contain;border-radius:6px;box-shadow:0 8px 40px rgba(0,0,0,.5)}
.lb-close{position:absolute;top:18px;right:24px;width:44px;height:44px;border:none;border-radius:50%;background:rgba(255,255,255,.15);color:#fff;font-size:28px;line-height:1;cursor:pointer}
.lb-close:hover{background:rgba(255,255,255,.3)}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:50px;height:50px;border:none;border-radius:50%;background:rgba(255,255,255,.15);color:#fff;font-size:34px;line-height:1;cursor:pointer}
.lb-nav:hover{background:rgba(255,255,255,.3)}
.lb-prev{left:20px}
.lb-next{right:20px}
.lb-count{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);color:#fff;font-size:14px;background:rgba(0,0,0,.4);padding:4px 12px;border-radius:20px}
.tech li{list-style:none;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14px;display:flex;gap:10px;align-items:flex-start}
.tech li::before{content:"✓";color:var(--accent);font-weight:800}
.form{display:flex;flex-direction:column;gap:12px}
.form input,.form select{padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit}
.form input:focus,.form select:focus{outline:none;border-color:var(--brand)}

/* footer */
.footer{background:var(--brand-2);color:#fff;padding:48px 0 30px;margin-top:40px}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.footer h4{font-size:16px;margin-bottom:14px}
.footer p,.footer a{font-size:14px;opacity:.85;line-height:1.9}
.footer .bottom{border-top:1px solid rgba(255,255,255,.15);margin-top:30px;padding-top:18px;font-size:13px;opacity:.6}
.note{background:var(--accent-soft);border:1px dashed var(--accent);color:#9a4a14;font-size:13px;padding:10px 14px;border-radius:10px;margin-top:18px}

/* 分公司 / 区域网点卡片（about.html，由 data.js + render.js 生成） */
.branch-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.branch-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow);transition:.2s}
.branch-card:hover{transform:translateY(-4px)}
.branch-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.branch-head h4{font-size:18px;color:var(--brand-2)}
.branch-region{font-size:12px;font-weight:700;color:var(--brand);background:var(--accent-soft);padding:4px 12px;border-radius:999px;white-space:nowrap}
.branch-info{list-style:none;display:flex;flex-direction:column;gap:10px}
.branch-info li{display:flex;gap:14px;font-size:14px;align-items:flex-start}
.branch-info li span{flex:0 0 56px;color:var(--muted);font-weight:600}
.branch-info li b{color:var(--ink);font-weight:700;line-height:1.5}
.branch-note{margin-top:4px;padding:10px 12px;background:#F4F8F7;border-radius:10px;font-size:13px;color:#33514b;gap:0 !important}
.branch-note::before{content:"备注 · ";font-weight:700;color:var(--brand)}
@media(max-width:860px){
  .branch-grid{grid-template-columns:1fr}
  .hero-stats{gap:20px}
}

@media(max-width:860px){
  .dual,.rp,.detail-grid,.features,.grid,.photos{grid-template-columns:1fr}
  .section.block{margin:18px 16px;padding:30px 20px}
  .hero h1{font-size:32px}
  .hero-zoom-hint{right:12px;bottom:12px;font-size:12px}
  .nav-links{display:none}
}

/* ===== 右侧客服浮窗 ===== */
.cs-float{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:60;display:flex;flex-direction:column;gap:14px}
.cs-btn{width:60px;height:60px;border:0;border-radius:50%;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;box-shadow:0 6px 18px rgba(0,0,0,.18);transition:.2s;font-size:13px;font-weight:800;line-height:1}
.cs-btn svg{width:26px;height:26px;margin-bottom:3px}
.cs-btn:hover{transform:scale(1.07)}
.cs-henan{background:#07C160}
.cs-shandong{background:#155E54}
.cs-general{background:#155E54}
.cs-pop{position:fixed;right:90px;top:50%;transform:translateY(-50%);width:262px;background:#fff;border-radius:16px;box-shadow:0 12px 40px rgba(15,61,55,.22);z-index:61;overflow:hidden}
.cs-pop[hidden]{display:none}
.cs-pop-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;color:#fff;font-weight:800;font-size:15px}
.cs-pop-head button{background:rgba(255,255,255,.28);border:0;color:#fff;width:26px;height:26px;border-radius:50%;cursor:pointer;font-size:17px;line-height:1}
.cs-pop-body{padding:20px 18px;text-align:center}
.cs-qr{display:block;width:180px;height:auto;margin:0 auto 12px;border-radius:12px;border:1px solid var(--line);object-fit:contain;box-sizing:border-box}
.cs-pop-body b{color:var(--brand)}
.cs-pop .btn-primary{width:100%;justify-content:center;margin-top:4px}
.cs-note{font-size:12px;color:var(--muted);margin-top:10px}
@media(max-width:860px){.cs-pop{right:80px;width:232px}.cs-btn{width:54px;height:54px}}

/* 预约表单：统一客服提示（暂不按区域分流；恢复分区时此样式可复用） */
.form .region-select{font-weight:800;color:var(--brand);background:#F4F8F7;border-color:var(--brand)}
.form-cs{margin:4px 0 10px;padding:10px 12px;background:#F4F8F7;border:1px dashed var(--brand);border-radius:10px;font-size:13px;color:#333;line-height:1.7}
.form-cs b{color:var(--brand)}

/* ===== Mobile enhancements ===== */
.nav-toggle{display:none}

@media(max-width:860px){
  /* Header compact */
  .site-header .nav{height:60px}
  .logo{white-space:nowrap;font-size:17px;gap:6px}
  .logo .mark{width:30px;height:30px;font-size:16px}
  .phone{display:none}
  .nav-cta{gap:10px}
  .nav-cta .btn{padding:9px 16px;font-size:13px}
  .nav-toggle{
    display:flex;flex-direction:column;justify-content:center;gap:5px;
    width:42px;height:42px;border:0;background:transparent;cursor:pointer;padding:0
  }
  .nav-toggle span{display:block;width:24px;height:2px;background:var(--brand);border-radius:2px;transition:.25s}
  .nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.active span:nth-child(2){opacity:0}
  .nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .mobile-menu{
    display:none;position:fixed;top:60px;left:0;right:0;bottom:0;
    background:rgba(15,61,55,.96);z-index:55;padding:20px 24px;overflow-y:auto
  }
  .mobile-menu.show{display:block}
  .mobile-menu .nav-links{display:flex!important;flex-direction:column;gap:0;font-size:18px}
  .mobile-menu .nav-links a{
    display:block;padding:16px 4px;border-bottom:1px solid rgba(255,255,255,.15);
    color:#fff!important;font-weight:600
  }
  .mobile-menu .nav-links a.active{color:var(--accent)!important}

  /* Hero */
  .hero{min-height:440px}
  .hero-inner{padding:48px 0}
  .hero h1{font-size:28px}
  .hero p{font-size:16px}
  .hero-stats{gap:24px;flex-wrap:wrap}
  .hero-stats .num{font-size:24px}

  /* Section / blocks */
  .section{padding:52px 0}
  .section h2{font-size:24px}
  .section.block{margin:16px;padding:28px 20px}
  .wrap{padding:0 16px}

  /* Grids: force 1 column */
  .dual,.rp,.detail-grid,.features,.grid,.photos,.branch-grid{grid-template-columns:1fr!important}

  /* Entry cards */
  .entry{min-height:240px;padding:24px}
  .entry h3{font-size:22px}

  /* Case cards */
  .case-card img{height:220px}
  #casesGrid{grid-template-columns:1fr}
  #casesGrid .case-card img{aspect-ratio:4/3;height:auto}
  .case-card figcaption b{font-size:16px}

  /* Detail hero */
  .detail-hero h1{font-size:26px}
  .detail-hero{padding:36px 0}

  /* Lightbox */
  .lightbox img{max-width:96vw;max-height:78vh}
  .lb-nav{width:42px;height:42px;font-size:26px}
  .lb-prev{left:10px}
  .lb-next{right:10px}

  /* Footer */
  .footer .cols{grid-template-columns:1fr;gap:22px}

  /* Customer service float */
  .cs-float{right:12px;top:72%;transform:translateY(-50%)}
  .cs-btn{width:52px;height:52px;font-size:12px}
  .cs-btn svg{width:22px;height:22px}
  .cs-pop{right:72px;width:236px}
}