/* ===== 炎煌建筑科技 官网样式 v2 ===== */
:root{
  --green-950:#0a1e15;
  --green-900:#0f2a1d;
  --green-800:#173b29;
  --green-700:#1f7a4d;
  --green-500:#2e9e63;
  --green-300:#7fd1a3;
  --warm-500:#e8743b;
  --warm-300:#f2a65a;
  --hero-orange:#ffc285;
  --hero-orange-soft:#ffd9b0;
  --ink:#1a2b22;
  --muted:#41504a;
  --line:#e3ece7;
  --bg:#ffffff;
  --bg-soft:#f5f9f6;
  --bg-dark:#0c2118;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 10px 30px rgba(15,42,29,.08);
  --shadow-lg:0 20px 50px rgba(15,42,29,.14);
  --maxw:1200px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:72px;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.25;font-weight:800;letter-spacing:.5px}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-title{font-size:clamp(26px,3.4vw,38px);text-align:center;margin-bottom:10px}
.section-sub{text-align:center;color:#44534b;max-width:720px;margin:0 auto 46px;font-size:16px;font-weight:500}
.about-text{max-width:880px;margin:0 auto;font-size:16.5px;line-height:1.95;color:var(--ink);text-align:justify;text-justify:inter-ideograph}
.about-text + .about-text{margin-top:16px}
.about-text b{color:var(--green-800);font-weight:800}
#about{background:
    radial-gradient(circle at 86% 8%,rgba(232,116,59,.07),transparent 40%),
    radial-gradient(circle at 6% 92%,rgba(46,158,99,.09),transparent 46%),
    linear-gradient(180deg,#ffffff 0%,#fbfdfc 100%);
  position:relative}
.eyebrow{display:inline-block;color:var(--green-700);font-weight:700;letter-spacing:1px;font-size:18px;text-transform:uppercase;margin-bottom:12px}
.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:.25s;white-space:nowrap;text-decoration:none}
.btn-primary{background:var(--green-700);color:#fff}
.btn-primary:hover{background:var(--green-900);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-warm{background:var(--warm-500);color:#fff}
.btn-warm:hover{background:#cf5e27;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-ghost{border:1.5px solid #fff;color:#fff;background:transparent}
.btn-ghost:hover{background:#fff;color:var(--green-900)}
.btn-line{border:1.5px solid var(--green-700);color:var(--green-700);background:transparent}
.btn-line:hover{background:var(--green-700);color:#fff}

/* ===== 顶栏 ===== */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--green-900)}
.brand img{height:44px;width:44px;border-radius:50%;object-fit:cover;background:#fff}
.brand small{display:block;font-size:11px;color:var(--muted);font-weight:600;letter-spacing:1px}
.nav-links{display:flex;gap:22px;align-items:center}
.nav-links a{font-weight:600;color:var(--ink);font-size:14px;position:relative;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--green-700);transition:.25s}
.nav-links a:hover::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-cta .tel{font-weight:800;color:var(--green-700);font-size:15px}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:10px;min-width:44px;min-height:44px;align-items:center;justify-content:center}
.hamburger span{width:24px;height:2px;background:var(--ink);transition:.3s}

/* ===== Hero（紧凑 + 原站首图色系） ===== */
.hero{position:relative;color:#fff;overflow:hidden;background:var(--green-950)}
.hero-bg{position:absolute;inset:0;background-image:url("../img/hero-bg.webp");background-size:cover;background-position:center}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,30,21,.38) 0%,rgba(23,59,41,.28) 55%,rgba(12,33,24,.20) 100%)}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 18%,rgba(46,158,99,.07),transparent 45%);z-index:1;pointer-events:none}
.hero-inner{position:relative;z-index:2;max-width:820px;margin:0 auto;text-align:center;display:flex;flex-direction:column;align-items:center;gap:22px;padding:58px 0 64px}
.eyebrow-light{display:inline-block;color:rgba(255,255,255,.78);font-weight:700;letter-spacing:4px;font-size:13px;margin-bottom:0;text-transform:uppercase;text-shadow:0 2px 10px rgba(0,0,0,.4)}
.hero h1{font-size:clamp(30px,4vw,48px);margin:0;line-height:1.2;color:#fff;font-weight:800;text-shadow:0 2px 18px rgba(0,0,0,.5)}
.hero .lead{color:rgba(255,255,255,.9);font-size:16px;max-width:680px;margin:0;line-height:1.8;font-weight:500;text-shadow:0 1px 10px rgba(0,0,0,.45)}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin:0}
.hero-btns .btn-ghost{border-color:rgba(255,255,255,.65);color:#fff;text-shadow:0 1px 8px rgba(0,0,0,.35)}
.hero-btns .btn-ghost:hover{background:var(--hero-orange);color:var(--green-900);text-shadow:none}
.hero-stats{display:flex;gap:30px;flex-wrap:wrap;justify-content:center;padding-top:18px;border-top:1px solid rgba(255,255,255,.15);width:100%}
.hero-stats .stat strong{font-size:26px;color:#fff;display:block;font-weight:800;text-shadow:0 2px 12px rgba(0,0,0,.45)}
.hero-stats .stat span{color:rgba(255,255,255,.75);font-size:12px;letter-spacing:1px;font-weight:500;text-shadow:0 1px 8px rgba(0,0,0,.35)}

/* ===== 核心战略定位（独立板块） ===== */
.strategy{background:
    radial-gradient(circle at 10% 14%,rgba(127,209,163,.22),transparent 42%),
    radial-gradient(circle at 90% 86%,rgba(46,158,99,.10),transparent 46%),
    linear-gradient(180deg,#ffffff 0%,#f1f8f4 100%);
  position:relative}
.strategy-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:8px}
.strategy-item{background:linear-gradient(180deg,#fff,#f6fbf8);border:1px solid var(--line);border-top:3px solid var(--green-500);border-radius:var(--radius);padding:26px 22px;text-align:center;transition:.25s}
.strategy-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--green-300)}
.strategy-item .s-ico{font-size:30px;display:block;margin-bottom:12px}
.strategy-item h4{color:var(--green-900);font-size:16px;font-weight:700;line-height:1.5;margin:0}
.strategy-item h4 small{display:block;color:var(--green-700);font-size:12.5px;font-weight:600;margin-top:4px;letter-spacing:.5px}

/* ===== 关于我们 内部分项（公司版图 / 战略 / 采暖测算） ===== */
.about-sub{margin-top:46px}
.sub-title{font-size:22px;color:var(--green-900);font-weight:800;text-align:center;margin:0 0 22px;position:relative;padding-bottom:14px}
.sub-title::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:56px;height:3px;background:linear-gradient(90deg,var(--green-500),var(--warm-500));border-radius:2px}
.calc-entry{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-top:26px;padding:24px 28px;background:linear-gradient(135deg,#eef7f1,#fff);border:1px solid var(--green-300);border-left:5px solid var(--green-600);border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.calc-entry-text{flex:1;min-width:240px}
.calc-entry-text h4{margin:0 0 6px;font-size:18px;color:var(--green-900)}
.calc-entry-text p{margin:0;font-size:14.5px;color:#3a4840;line-height:1.7}
.calc-entry .btn{white-space:nowrap}

/* ===== 信任条 ===== */
.trust{padding:34px 0;background:var(--bg-soft);border-bottom:1px solid var(--line)}
.trust-inner{display:flex;justify-content:space-around;align-items:center;flex-wrap:wrap;gap:20px}
.trust-item{display:flex;align-items:center;gap:14px;color:var(--muted)}
.trust-item .n{font-size:28px;font-weight:800;color:var(--green-700)}
.trust-item .l{font-size:13px;line-height:1.4}

/* ===== 公司版图 / 双公司 ===== */
#territory{background:
    radial-gradient(circle at 14% 14%,rgba(127,209,163,.18),transparent 44%),
    radial-gradient(circle at 90% 86%,rgba(232,116,59,.06),transparent 46%),
    linear-gradient(180deg,#ffffff 0%,#f2f9f5 100%);
  position:relative}
.duo-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:12px}
.duo-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px;position:relative;overflow:hidden;transition:.3s}
.duo-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--green-300)}
.duo-card::before{content:"";position:absolute;top:0;right:0;width:120px;height:120px;background:radial-gradient(circle,rgba(46,158,99,.12),transparent 70%);pointer-events:none}
.duo-card .badge{display:inline-block;background:var(--green-700);color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;letter-spacing:1px;margin-bottom:12px}
.duo-card.alt .badge{background:var(--warm-500)}
.duo-card h3{font-size:22px;margin-bottom:6px;color:var(--green-900)}
.duo-card .role{color:var(--warm-500);font-weight:700;font-size:13px;margin-bottom:14px;letter-spacing:1px}
.duo-card .info{display:grid;gap:8px;font-size:14.5px;color:#3a4840;line-height:1.6}
.duo-card .info b{color:var(--green-900);font-weight:700;margin-right:6px}
.duo-history{margin-top:30px;text-align:center;padding:26px 24px;background:linear-gradient(135deg,var(--bg-soft),#fff);border-radius:var(--radius-lg);border:1px dashed var(--line)}
.duo-history .brand-evol{font-size:15px;color:var(--ink);margin-bottom:14px}
.duo-history .brand-evol b{color:var(--green-700);font-weight:700}
.duo-history .brand-step{display:inline-flex;align-items:center;flex-wrap:wrap;justify-content:center;gap:6px}
.duo-history .brand-line{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;font-size:14px;margin:10px 0;color:var(--muted)}
.duo-history .brand-line .arrow{color:var(--line)}
.duo-history .trademark-old{color:var(--green-700);font-weight:700}
.duo-history .trademark-new{color:var(--green-900);font-weight:700}
.duo-history .trademark-new sup,.duo-history .trademark-old sup{font-size:10px;margin-left:1px;opacity:.85}
.duo-history .slogan-old{color:var(--muted);font-weight:700}
.duo-history .slogan-new{color:var(--warm-500);font-weight:800;font-size:16px;letter-spacing:1px}
.duo-history .arrow{display:inline-block;margin:0 6px;color:var(--muted);font-weight:700}
.duo-history .brand-region{text-align:center;font-size:14px;color:var(--ink);margin:10px 0;line-height:1.7}
.duo-history .brand-region b{color:var(--green-900)}
.duo-history .brand-tail{margin-top:18px;font-size:16px;color:var(--green-900);font-weight:700;line-height:1.6}
.brand-legacy{margin:18px auto 0;display:flex;flex-direction:column;align-items:center;gap:8px}
.brand-legacy img{max-width:320px;height:auto;display:block;background:#fff;padding:14px 18px;border-radius:14px;border:1px solid var(--line);box-shadow:0 6px 18px rgba(15,42,29,.06)}
.brand-legacy small{font-size:15px;color:var(--green-800);letter-spacing:.5px;line-height:1.6}
.brand-legacy small b{color:var(--green-700);font-weight:700}
.brand-trademark-note{margin:16px auto 0;max-width:640px;font-size:15px;line-height:1.8;color:var(--green-800);text-align:center;padding-top:14px;border-top:1px dashed var(--line)}
.brand-trademark-note sup{font-size:10px;margin-left:1px}

/* ===== 关于 / 创始人故事样式已移除：并入新闻区，本节不再渲染 ===== */

/* ===== 关于 / 创始人故事样式已移除：并入新闻区，本节不再渲染 ===== */

/* ===== 别墅图集 ===== */
.villa{background:var(--bg-soft);scroll-margin-top:90px}
.villa-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.villa-card{display:block;position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);background:#fff;transition:.3s;text-decoration:none;color:inherit}
.villa-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.villa-card img{width:100%;height:280px;object-fit:cover;transition:.5s}
.villa-card:hover img{transform:scale(1.05)}
.villa-card .v-info{padding:18px 20px}
.villa-card .v-style{display:inline-block;background:var(--green-700);color:#fff;font-size:11px;font-weight:700;padding:3px 10px;border-radius:999px;letter-spacing:1px;margin-bottom:8px}
.villa-card.alt .v-style{background:var(--warm-500)}
.villa-card h3{font-size:17px;margin-bottom:4px;color:var(--green-900)}
.villa-card p{font-size:13px;color:var(--muted)}
.villa-card .v-more{display:inline-block;margin-top:8px;color:var(--warm-500);font-weight:700;font-size:13px}
.villa-card.real-project{grid-column:auto}
.villa-card.real-project img{height:280px}

/* ===== 产品矩阵 ===== */
.products{background:#fff;scroll-margin-top:90px}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s;display:flex;flex-direction:column;text-decoration:none;color:inherit}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--green-300)}
.prod-card .thumb{height:200px;overflow:hidden;background:var(--green-900)}
.prod-card .thumb img{width:100%;height:100%;object-fit:cover;object-position:center 35%;transition:.4s}
.prod-card:hover .thumb img{transform:scale(1.06)}
/* 轻钢别墅封面为竖图，顶部天空留白偏多：整体上移裁掉顶部，露出楼体 */
.prod-card[href*="prod-steel"] .thumb img{object-position:center 60%}
.prod-body{padding:22px;display:flex;flex-direction:column;flex:1}
.prod-tag{display:inline-block;background:var(--bg-soft);color:var(--green-700);font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;margin-bottom:10px;align-self:flex-start}
.prod-body h3{font-size:19px;margin-bottom:8px}
.prod-body p{color:var(--muted);font-size:14px;flex:1;margin-bottom:14px}
.prod-meta{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:14px;margin-top:auto}
.prod-price{font-weight:800;color:var(--warm-500);font-size:18px}
.prod-price small{color:var(--muted);font-weight:600;font-size:12px}
.prod-scene{font-size:12px;color:var(--muted)}
.prod-card .prod-more{display:inline-block;margin-top:12px;color:var(--warm-500);font-weight:700;font-size:13px}
.prod-card.full .prod-more{color:#ffd9a8}
.prod-card.full{background:linear-gradient(180deg,rgba(10,30,21,.78),rgba(10,30,21,.78)),url("../img/prod-integrate.webp") center/cover;color:#fff;border:0;overflow:hidden;grid-column:1 / -1}
.prod-card.full:hover{transform:translateY(-3px)}
.prod-card.full .prod-body{max-width:680px;padding:32px 12px;text-shadow:0 1px 10px rgba(0,0,0,.45)}
.prod-card.full .prod-tag{background:rgba(255,255,255,.15);color:#fff}
.prod-card.full h3{color:#fff}
.prod-card.full p{color:#d8eae0}
.prod-card.full .prod-meta{border-color:rgba(255,255,255,.2)}
.prod-card.full .prod-scene{color:#9fc0b1}

/* ===== 技术实力 / 建筑节能 ===== */
.tech{background:linear-gradient(165deg,#f4f8f5 0%,#e9f1ec 100%);color:var(--ink);position:relative;overflow:hidden}
.tech::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 18% 22%,rgba(46,158,99,.06),transparent 45%),radial-gradient(circle at 85% 80%,rgba(232,116,59,.05),transparent 45%);pointer-events:none}
.tech .container{position:relative}
.tech .section-title{color:var(--green-900)}
.tech .section-sub{color:var(--muted)}
.tech .eyebrow{color:var(--green-700)}
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tech-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s}
.tech-card:hover{background:#fff;border-color:var(--green-300);box-shadow:var(--shadow);transform:translateY(-3px)}
.tech-card .num{font-size:42px;font-weight:800;color:var(--green-700);line-height:1;margin-bottom:12px;display:block}
.tech-card h4{color:var(--green-900);font-size:17px;margin-bottom:10px}
.tech-card p{color:var(--muted);font-size:14px;line-height:1.7}
.tech-footnote{margin-top:30px;text-align:center;color:var(--muted);font-size:13px;padding-top:24px;border-top:1px solid var(--line)}

/* ===== 平台 / 绿筑云策四时 ===== */
.platform{background:linear-gradient(180deg,#fff 0%,var(--bg-soft) 100%)}
.platform-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:50px;align-items:center}
.platform-img{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--line)}
.platform-img img{width:100%;height:auto;display:block}
.platform-img .badge{position:absolute;top:14px;right:14px;background:var(--warm-500);color:#fff;padding:6px 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:1px}
.map-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.map-links .map-link{flex:1 1 240px;display:flex;align-items:center;gap:8px;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);color:var(--green-900);text-decoration:none;font-size:14px;font-weight:600;transition:.2s}
.map-links .map-link:hover{box-shadow:var(--shadow);border-color:var(--green-300);transform:translateY(-2px)}
.map-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:var(--muted);text-align:center;padding:24px}
.map-placeholder p{font-size:18px;margin:0;font-weight:700;color:var(--green-800)}
.map-placeholder span{font-size:13px;max-width:420px;line-height:1.6}
.platform-text h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.platform-text p{color:var(--muted);margin-bottom:18px}
.feat-list{display:grid;gap:14px;margin-top:18px}
.feat{display:flex;gap:14px;align-items:flex-start;padding:14px;background:#fff;border:1px solid var(--line);border-radius:12px}
.feat .ico{width:38px;height:38px;background:var(--green-700);color:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;flex:none}
.feat b{display:block;color:var(--green-900);margin-bottom:2px}
.feat span{font-size:13px;color:var(--muted)}

/* ===== 案例 ===== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);position:relative}
.case-card img{height:240px;width:100%;object-fit:cover}
.case-card .overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(12,33,24,.85),transparent 60%);display:flex;align-items:flex-end;padding:22px;color:#fff}
.case-card .overlay h3{font-size:17px;font-weight:700}
.case-card .overlay span{font-size:13px;color:var(--green-300);display:block;margin-top:4px}

/* ===== 新闻 ===== */
.news{background:#fff}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.3s}
.news-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:var(--green-300)}
.news-date{color:var(--green-700);font-weight:700;font-size:13px;letter-spacing:1px}
.news-card h3{font-size:16px;margin:10px 0 12px;line-height:1.45}
.news-card p{color:var(--muted);font-size:14px}
.news-card .tag{display:inline-block;background:var(--bg-soft);color:var(--green-700);font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;margin-bottom:10px;letter-spacing:1px}

/* 新闻区改为紧凑标题链接列表 */
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:940px;margin:0 auto}
.news-row{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px 18px;transition:.22s;text-decoration:none}
.news-row:hover{border-color:var(--green-300);box-shadow:var(--shadow);transform:translateY(-2px);background:var(--bg-soft)}
.n-tag{flex:none;background:var(--bg-soft);color:var(--green-700);font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;letter-spacing:1px;white-space:nowrap}
.news-row:hover .n-tag{background:var(--green-700);color:#fff}
.n-title{flex:1;font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.45}
.n-date{flex:none;color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}

/* ===== FAQ ===== */
.faq-list{max-width:820px;margin:0 auto;display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 24px;cursor:pointer;font-weight:700;font-size:16px}
.faq-q .plus{flex:none;width:26px;height:26px;border-radius:50%;background:var(--bg-soft);color:var(--green-700);display:flex;align-items:center;justify-content:center;font-size:18px;transition:.3s}
.faq-item.open .plus{transform:rotate(45deg);background:var(--green-700);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--muted);font-size:15px}
.faq-a div{padding:0 24px 22px}

/* ===== 联系 ===== */
.contact{background:var(--bg-dark);color:#fff}
.contact .section-title{color:#fff}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.contact-info h2{font-size:30px;margin-bottom:16px}
.contact-info p{color:#bcd4c8;margin-bottom:24px}
.contact-cards{display:grid;gap:14px}
.contact-card{display:flex;gap:14px;align-items:center;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:16px}
.contact-card .ico{font-size:22px;flex:none}
.contact-card strong{display:block;font-size:15px}
.contact-card span{display:block;color:#9fc0b1;font-size:13px;line-height:1.7}
.contact-card span+span{margin-top:4px}
.contact-card a.addr-link{color:#cdeede;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.contact-card a.addr-link:hover{color:#fff}
.contact-form{background:#fff;border-radius:var(--radius);padding:30px;color:var(--ink)}
.contact-form h3{margin-bottom:18px;font-size:20px}
.form-row{display:grid;gap:14px;margin-bottom:14px}
.contact-form input,.contact-form textarea{width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:10px;font-family:inherit;font-size:15px;background:var(--bg-soft)}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--green-500);background:#fff}
.contact-form textarea{resize:vertical;min-height:110px}
.note{font-size:12px;color:var(--muted);margin-top:10px;text-align:center}

/* ===== 页脚 ===== */
.footer{background:#08180f;color:#9fc0b1;padding:54px 0 26px}
.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr 1.4fr;gap:24px;margin-bottom:34px}
.footer h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer a{color:#9fc0b1;font-size:14px;display:block;margin-bottom:8px}
.footer a:hover{color:var(--green-300)}
.footer-email{margin-top:6px;font-size:13px;color:#cdeede}
.footer-contact-col .fc-item{margin-bottom:14px}
.footer-contact-col .fc-item strong{color:#cdeede;font-size:14px;display:block;margin-bottom:3px}
.footer-contact-col .fc-item span{font-size:13px;line-height:1.7;display:block;color:#9fc0b1}
.footer-contact-col .addr-link{display:inline-block;position:relative;z-index:2;color:#cdeede;cursor:pointer}
.footer-contact-col .addr-link:hover{color:#fff}
.footer .brand{color:#fff;margin-bottom:12px}
.footer .desc{font-size:13px;line-height:1.7;max-width:300px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:#7c988c}
.footer-bottom .beian-no{flex-basis:100%;text-align:center;color:#9fc4ac;text-decoration:none;margin-top:4px}
.footer-bottom .beian-no:hover{color:#fff;text-decoration:underline}

/* ===== 动画 ===== */
.reveal{opacity:0;transform:translateY(28px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.show{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media(max-width:1180px){
  .nav-links{gap:16px}
  .nav-links a{font-size:13.5px}
  .brand{font-size:17px}
  .nav-cta .tel{font-size:14px}
}
@media(max-width:1000px){
  .nav-links{gap:12px}
  .nav-links a{font-size:13px}
  .nav-cta .btn{padding:11px 18px;font-size:14px}
}
@media(max-width:980px){
  .hero-inner{grid-template-columns:1fr;gap:30px}
  .duo-grid,.founder,.platform-grid{grid-template-columns:1fr;gap:30px}
  .timeline{grid-template-columns:repeat(2,1fr);row-gap:36px}
  .timeline::before{display:none}
  .values{grid-template-columns:repeat(2,1fr)}
  .villa-grid,.prod-grid,.case-grid,.news-grid,.tech-grid{grid-template-columns:repeat(2,1fr)}
  .villa-card.real-project{grid-column:auto}
  .villa-card.real-project img{height:280px}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}

/* ============ 整改新增：悬浮转化栏 ============ */
.float-cta{position:fixed;right:18px;bottom:22px;z-index:120;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.fc-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;width:54px;height:54px;border-radius:50%;text-decoration:none;color:#fff;box-shadow:0 6px 18px rgba(0,0,0,.22);transition:transform .15s ease}
.fc-btn .fc-ico{font-size:20px;line-height:1}
.fc-btn .fc-txt{font-size:10px;margin-top:2px;font-weight:600}
.fc-call{background:linear-gradient(135deg,#2e9e63,#1f7d4c)}
.fc-wechat{background:linear-gradient(135deg,#16b86a,#0e9d57)}
.fc-top{background:linear-gradient(135deg,#3a4a42,#26332d);width:46px;height:46px}
.fc-btn:active{transform:scale(.94)}

/* ============ 整改新增：百度地图入口（已合并入地址超链接，此处样式保留备用） ============ */

/* ===== 移动端（max-width:680px）合并：布局 + 品牌沿革 + 悬浮栏 ===== */
@media(max-width:680px){
  .nav-links,.nav-cta .tel{display:none}
  .hamburger{display:flex}
  .nav-links.open{display:flex;position:fixed;top:66px;left:env(safe-area-inset-left,0);right:env(safe-area-inset-right,0);max-width:100vw;flex-direction:column;background:#fff;padding:20px;gap:18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);z-index:99}
  .villa-grid,.prod-grid,.case-grid,.news-grid,.values,.tech-grid{grid-template-columns:1fr}
  .news-list{grid-template-columns:1fr;gap:10px;max-width:100%}
  .news-row{padding:14px 16px;gap:12px}
  .n-title{font-size:14.5px;line-height:1.5}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:60px 0}
  /* Hero 紧凑化：不再密密麻麻 */
  .hero-inner{padding:32px 0 38px;gap:22px}
  .eyebrow-light{font-size:12px;margin-bottom:8px;letter-spacing:2px}
  .hero h1{font-size:24px;line-height:1.3;margin:6px 0 12px;letter-spacing:.5px}
  .hero .lead{font-size:14.5px;line-height:1.7;margin-bottom:18px;color:var(--hero-orange-soft);font-weight:700}
  .hero-btns{flex-direction:column;gap:10px;margin-bottom:18px;width:100%}
  .hero-btns .btn{width:100%;justify-content:center;padding:12px 18px;font-size:14.5px}
  .hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px 18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.15)}
  .hero-stats .stat strong{font-size:22px}
  .hero-stats .stat span{font-size:11.5px;letter-spacing:.5px}
  /* 核心战略定位移动端单列 */
  .strategy-grid{grid-template-columns:1fr;gap:14px}
  .strategy-item{padding:22px 18px}
  /* 兼容手机端 notch / 横屏刘海：让暗色背景真正全宽 */
  .section,.footer,.contact,.nav,.hero,.hero-bg{box-sizing:border-box}
  .footer,.contact{padding-left:env(safe-area-inset-left,0);padding-right:env(safe-area-inset-right,0)}
  /* 双公司品牌沿革移动端微调 */
  .duo-history{padding:22px 18px}
  .duo-history .brand-evol{font-size:14px}
  .duo-history .brand-tail{font-size:15px}
  .brand-legacy img{max-width:240px;padding:10px 12px}
  .brand-legacy small{font-size:14px}
  /* 悬浮栏移动端改为底部固定通栏，需给 body 留白避免遮挡页脚 */
  body{padding-bottom:calc(58px + env(safe-area-inset-bottom,0))}
  .float-cta{right:0;left:0;bottom:0;flex-direction:row;justify-content:center;gap:0;background:rgba(255,255,255,.97);padding:6px 0 calc(6px + env(safe-area-inset-bottom,0));box-shadow:0 -4px 16px rgba(0,0,0,.12)}
  .fc-btn{width:33.33%;height:52px;border-radius:0;box-shadow:none;flex-direction:row;gap:6px}
  .fc-btn .fc-txt{font-size:13px;margin-top:0}
  .fc-top{display:none}

/* Phase 1 首页 hero 定位行 + TL;DR + 三栏锚点 */
}