/* ============================================================
   中泱善成（杭州）信息科技有限公司 · 官网公共样式
   Design tokens & base
   ============================================================ */
:root{
  --red:#C2332B;          /* 品牌政务红 */
  --red-dark:#9E2922;
  --red-soft:#FBF1EF;
  --navy:#0B2033;         /* 深海军蓝 */
  --navy-2:#12344F;
  --blue:#1F5FA8;
  --green:#0E8A6D;        /* 双碳青绿 */
  --green-2:#12A17F;
  --green-soft:#EEF7F4;
  --bg:#F6F7F9;
  --card:#FFFFFF;
  --text:#24303C;
  --muted:#64707D;
  --line:#E5E9EF;
  --radius:14px;
  --shadow:0 6px 24px rgba(11,32,51,.08);
  --shadow-lg:0 14px 40px rgba(11,32,51,.14);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--bg);font-size:15.5px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer}
::selection{background:var(--red);color:#fff}

/* 容器与区块 */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:76px 0}
.section--tint{background:var(--bg)}
.section--white{background:#fff}
.section--navy{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff}

/* 眉标与标题 */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.14em;color:var(--red);font-weight:700}
.eyebrow::before{content:"";width:22px;height:3px;background:var(--red);border-radius:2px}
.eyebrow--green{color:var(--green)}
.eyebrow--green::before{background:var(--green)}
.eyebrow--light{color:#9FC4FF}
.eyebrow--light::before{background:#9FC4FF}
.sec-head{max-width:820px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .eyebrow{justify-content:center}
.sec-head.center .eyebrow::before{display:none}
.sec-head.center .eyebrow::after{content:"";width:22px;height:3px;background:var(--red);border-radius:2px}
.sec-head.center .eyebrow--green::after{background:var(--green)}
.sec-head h2{font-size:32px;line-height:1.3;margin:14px 0 12px;font-weight:800;color:var(--navy)}
.sec-head p{color:var(--muted);font-size:15.5px}
.section--navy .sec-head h2{color:#fff}
.section--navy .sec-head p{color:#B7C6D8}
.sec-sub{font-size:15px;color:var(--muted);margin-top:6px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:8px;font-weight:700;font-size:15px;border:0;transition:all .25s;line-height:1.4}
.btn--red{background:var(--red);color:#fff}
.btn--red:hover{background:var(--red-dark);transform:translateY(-2px);box-shadow:0 10px 24px rgba(194,51,43,.3)}
.btn--green{background:var(--green);color:#fff}
.btn--green:hover{background:#0B7559;transform:translateY(-2px);box-shadow:0 10px 24px rgba(14,138,109,.3)}
.btn--outline{border:1.5px solid rgba(255,255,255,.7);color:#fff;background:rgba(255,255,255,.06);backdrop-filter:blur(4px)}
.btn--outline:hover{background:#fff;color:var(--navy)}
.btn--navy{background:var(--navy);color:#fff}
.btn--navy:hover{background:var(--blue)}
.btn--ghost{border:1.5px solid var(--red);color:var(--red);background:transparent}
.btn--ghost:hover{background:var(--red);color:#fff}
.btn--ghost-green{border:1.5px solid var(--green);color:var(--green);background:transparent}
.btn--ghost-green:hover{background:var(--green);color:#fff}
.btn.sm{padding:8px 18px;font-size:13.5px}

/* ============================================================
   顶部导航
   ============================================================ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(9,26,43,.92);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08);transition:background .3s}
.site-header.scrolled{background:rgba(7,20,34,.97);box-shadow:0 4px 20px rgba(0,0,0,.25)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand img{height:42px;width:auto}
.brand-name{display:flex;flex-direction:column;line-height:1.25}
.brand-name strong{font-size:19px;font-weight:800;letter-spacing:.06em}
.brand-name span{font-size:10.5px;color:#9FB6CC;letter-spacing:.22em;margin-top:2px}
.menu{display:flex;align-items:center;gap:4px}
.menu>li{position:relative}
.menu>li>a{display:flex;align-items:center;gap:5px;padding:10px 14px;color:#D6E0EC;font-size:15px;font-weight:600;border-radius:8px;transition:all .2s}
.menu>li>a:hover,.menu>li.active>a{color:#fff;background:rgba(255,255,255,.1)}
.menu>li.active>a{color:#FFB4AE}
.menu .caret{width:10px;height:10px;transition:transform .2s}
.menu>li.has-sub:hover .caret{transform:rotate(180deg)}
.submenu{position:absolute;top:calc(100% + 8px);left:0;min-width:230px;background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:all .22s;border:1px solid var(--line)}
.menu>li.has-sub:hover .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu a{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;border-radius:8px;color:var(--text);font-size:14.5px;font-weight:600;transition:all .15s}
.submenu a:hover{background:var(--green-soft);color:var(--green)}
.submenu a small{color:var(--muted);font-weight:400;font-size:12px}
.nav-cta{display:inline-flex;align-items:center;gap:6px;padding:9px 20px;background:var(--red);color:#fff;border-radius:8px;font-weight:700;font-size:14px;transition:all .2s}
.nav-cta:hover{background:var(--red-dark)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid rgba(255,255,255,.25);background:transparent;border-radius:8px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:all .25s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============================================================
   Hero
   ============================================================ */
.hero{position:relative;padding:108px 0 66px;color:#fff;background-size:cover;background-position:center}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,20,34,.7) 0%,rgba(7,20,34,.53) 42%,rgba(7,20,34,.3) 100%)}
.hero--center::before{background:linear-gradient(180deg,rgba(7,20,34,.88) 0%,rgba(7,20,34,.6) 60%,rgba(7,20,34,.78) 100%)}
.hero .container{position:relative;z-index:2}
.hero h1{font-size:46px;line-height:1.28;font-weight:900;letter-spacing:.01em;margin:16px 0 20px;max-width:780px}
.hero p.lead{font-size:19.5px;color:#f7f7f7;max-width:680px;margin-bottom:34px}
.hero .tagline{display:inline-flex;align-items:center;gap:10px;font-size:14px;color:#9FC4FF;letter-spacing:.1em;font-weight:600}
.hero .tagline::before{content:"";width:26px;height:2px;background:var(--red)}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-actions .btn{min-width:150px;justify-content:center}
/* hero 数据条 */
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.16);border-radius:14px;overflow:hidden;margin-top:56px;backdrop-filter:blur(6px)}
.hero-stats .stat{background:rgba(7,20,34,.55);padding:22px 20px;text-align:center}
.hero-stats .stat b{display:block;font-size:30px;font-weight:900;color:#fff;line-height:1.2}
.hero-stats .stat b em{font-style:normal;font-size:16px;font-weight:700;margin-left:2px;color:#FFB4AE}
.hero-stats .stat span{font-size:13px;color:#B7C6D8;display:block;margin-top:4px}
/* 面包屑 */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:#B7C6D8;margin-top:18px}
.breadcrumb a{color:#DCE6F2}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{color:#9FC4FF}
.breadcrumb svg{width:12px;height:12px;opacity:.6}

/* ============================================================
   卡片与网格
   ============================================================ */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .25s,box-shadow .25s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.card .ico{width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:#fff}
.card .ico svg{width:26px;height:26px}
.card h3{font-size:18.5px;font-weight:800;color:var(--navy);margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px}
.card .more{margin-top:14px;display:inline-flex;align-items:center;gap:4px;color:var(--red);font-weight:700;font-size:13.5px}
.card .more:hover{gap:8px}
.card .more svg{width:14px;height:14px}
.card--green h3{color:var(--green)}
.card--green .more{color:var(--green)}
.card--link{display:block}
.card--link:hover .more{gap:8px}

/* 大数字统计 */
.nums{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.num{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;text-align:center}
.num b{display:block;font-size:40px;font-weight:900;color:var(--red);line-height:1.15}
.num b em{font-style:normal;font-size:18px;font-weight:800;margin-left:3px}
.num--green b{color:var(--green)}
.num span{color:var(--muted);font-size:14px;display:block;margin-top:6px}

/* 条目列表 */
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
.tag-list li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 18px;font-size:14px;color:var(--text);transition:all .2s}
.tag-list li:hover{border-color:var(--red);color:var(--red)}

/* ============================================================
   双碳方案卡片（首页五大板块）
   ============================================================ */
.sol-card{position:relative;border-radius:var(--radius);overflow:hidden;min-height:300px;display:flex;flex-direction:column;justify-content:flex-end;color:#fff;padding:26px;background-size:cover;background-position:center;transition:transform .3s}
.sol-card::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,20,34,.05) 30%,rgba(7,20,34,.88) 100%)}
.sol-card>*{position:relative;z-index:2}
.sol-card:hover{transform:translateY(-6px)}
.sol-card h3{font-size:21px;font-weight:800;margin-bottom:8px}
.sol-card p{font-size:13.5px;color:#DCE6F2;margin-bottom:12px;line-height:1.65}
.sol-card .sol-tag{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:#FFD9B0;margin-bottom:10px;letter-spacing:.08em}
.sol-card .arrow{width:34px;height:34px;border-radius:50%;border:1.5px solid rgba(255,255,255,.6);display:flex;align-items:center;justify-content:center;transition:all .25s;flex:none}
.sol-card .sol-foot{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-top:2px}
.sol-card .sol-title{display:inline-flex;align-items:center;padding:7px 18px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.42);font-size:14px;font-weight:700;letter-spacing:.12em;color:#fff;backdrop-filter:blur(8px);line-height:1.4;white-space:nowrap;box-shadow:0 2px 10px rgba(0,0,0,.25)}
.sol-card:hover .arrow{background:#fff;color:var(--navy);border-color:#fff}

/* ============================================================
   数字政府 / 产品条
   ============================================================ */
.prod-tile{border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line);transition:all .25s}
.prod-tile:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.prod-tile .thumb{height:190px;overflow:hidden;background:var(--navy)}
.prod-tile .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.prod-tile:hover .thumb img{transform:scale(1.05)}
.prod-tile .body{padding:18px 20px 20px}
.prod-tile .body h3{font-size:17px;font-weight:800;color:var(--navy);margin-bottom:5px}
.prod-tile .body p{font-size:13.5px;color:var(--muted)}

/* 特性点 */
.feature{display:flex;gap:14px;padding:18px 0;border-bottom:1px dashed var(--line)}
.feature:last-child{border-bottom:0}
.feature .f-ico{flex:0 0 44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--red-soft);color:var(--red)}
.feature .f-ico svg{width:22px;height:22px}
.feature--green .f-ico{background:var(--green-soft);color:var(--green)}
.feature b{display:block;font-size:15.5px;color:var(--navy);margin-bottom:3px}
.feature p{font-size:14px;color:var(--muted)}

/* ============================================================
   步骤 / 时间轴
   ============================================================ */
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:0;position:relative}
.steps::before{content:"";position:absolute;top:22px;left:6%;right:6%;height:2px;background:linear-gradient(90deg,var(--green),#BFE9DB);z-index:0}
.step{text-align:center;position:relative;z-index:1;padding:0 8px}
.step .dot{width:44px;height:44px;margin:0 auto 12px;border-radius:50%;background:var(--green);color:#fff;font-weight:900;font-size:17px;display:flex;align-items:center;justify-content:center;border:4px solid #fff;box-shadow:0 4px 14px rgba(14,138,109,.35)}
.step b{display:block;font-size:15px;color:var(--navy);margin-bottom:4px}
.step span{font-size:12.5px;color:var(--muted);line-height:1.5}

/* 流程条 */
.flow{display:flex;align-items:stretch;flex-wrap:wrap;gap:0}
.flow .f-item{flex:1;min-width:150px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 16px;text-align:center;position:relative}
.flow .f-item + .f-item{margin-left:26px}
.flow .f-item + .f-item::before{content:"";position:absolute;left:-22px;top:50%;transform:translateY(-50%);width:18px;height:2px;background:var(--green)}
.flow .f-item + .f-item::after{content:"";position:absolute;left:-24px;top:50%;transform:translateY(-50%);border:5px solid transparent;border-left-color:var(--green)}
.flow .f-item .no{display:inline-flex;width:26px;height:26px;border-radius:50%;background:var(--green-soft);color:var(--green);font-weight:800;font-size:13px;align-items:center;justify-content:center;margin-bottom:8px}
.flow .f-item b{display:block;font-size:14.5px;color:var(--navy)}

/* ============================================================
   架构图（CSS 绘制）
   ============================================================ */
.arch{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden}
.arch-head{display:flex;align-items:center;gap:10px;padding:16px 22px;background:var(--navy);color:#fff;font-weight:700;font-size:15px}
.arch-head svg{width:18px;height:18px;color:#7FB3FF}
.arch-body{padding:22px}
.arch-grid{display:grid;gap:14px}
.arch-box{border-radius:10px;padding:13px 14px;font-size:13.5px;line-height:1.5}
.arch-box b{display:block;font-size:14.5px;margin-bottom:3px}
.arch-box small{color:var(--muted)}
.arch-box--blue{background:#EAF2FC;border:1px solid #C4DAF2;color:#1F4E86}
.arch-box--green{background:var(--green-soft);border:1px solid #BFE9DB;color:#0B6B54}
.arch-box--red{background:var(--red-soft);border:1px solid #F3C9C4;color:#8E2B25}
.arch-box--navy{background:#0E2A47;color:#fff}
.arch-box--navy small{color:#9FB6CC}
.arch-center{text-align:center;font-weight:800;font-size:15px;color:var(--navy);padding:10px}
.arch-arrow{display:flex;align-items:center;justify-content:center;color:var(--green);font-size:12px;gap:6px}
.arch-arrow svg{width:16px;height:16px}

/* ============================================================
   表格
   ============================================================ */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:#fff}
table.tbl{width:100%;border-collapse:collapse;table-layout:fixed;font-size:14px}
table.tbl th,table.tbl td{padding:13px 14px;text-align:center;border-bottom:1px solid var(--line);word-break:break-word}
table.tbl th{background:var(--navy);color:#fff;font-weight:700;font-size:13.5px}
table.tbl td{color:var(--text)}
table.tbl tr:nth-child(even) td{background:#F8FAFC}
table.tbl tr:last-child td{border-bottom:0}
table.tbl td.l,table.tbl th.l{text-align:left}

/* ============================================================
   图文对照块
   ============================================================ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.split .media{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#fff}
.split .media img{width:100%;height:auto}
.split h3{font-size:24px;font-weight:800;color:var(--navy);margin-bottom:14px;line-height:1.4}
.split p{color:var(--muted);margin-bottom:12px}
.check-list{list-style:none;margin:0;padding:0}
.check-list li{display:flex;gap:10px;align-items:flex-start;padding:7px 0;font-size:14.5px;color:var(--text)}
.check-list li b{white-space:nowrap;font-weight:700}
.check-list svg{flex:0 0 18px;width:18px;height:18px;color:var(--green);margin-top:3px}
.split .check-list{margin-top:8px}

/* ============================================================
   新闻 / 案例卡片
   ============================================================ */
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all .25s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.news-card .n-thumb{height:170px;overflow:hidden;background:var(--navy)}
.news-card .n-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .n-thumb img{transform:scale(1.05)}
.news-card .n-body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-card .n-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);margin-bottom:10px}
.news-card .n-cat{background:var(--red-soft);color:var(--red);padding:2px 10px;border-radius:999px;font-weight:700}
.news-card .n-cat--green{background:var(--green-soft);color:var(--green)}
.news-card h3{font-size:16.5px;font-weight:800;color:var(--navy);line-height:1.55;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card p{font-size:13.5px;color:var(--muted);flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card .n-date{margin-top:12px;font-size:12.5px;color:var(--muted)}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{background:#081826;color:#A9BACB;font-size:14px}
.footer-main{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding:64px 0 44px}
.footer-brand img{height:44px;margin-bottom:16px}
.footer-brand p{font-size:13.5px;line-height:1.8;max-width:340px}
.footer h4{color:#fff;font-size:15.5px;font-weight:700;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:2.5px;background:var(--red);border-radius:2px}
.footer ul li{margin-bottom:10px}
.footer ul a{transition:color .2s}
.footer ul a:hover{color:#fff;padding-left:4px}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;line-height:1.6}
.footer-contact svg{flex:0 0 16px;width:16px;height:16px;color:#7FB3FF;margin-top:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#71859A}
.footer-bottom a{color:#9FC4FF}

/* 回到顶部 */
.to-top{position:fixed;right:26px;bottom:30px;width:46px;height:46px;border-radius:12px;background:var(--red);color:#fff;border:0;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 22px rgba(194,51,43,.4);opacity:0;visibility:hidden;transform:translateY(12px);transition:all .3s;z-index:90}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--red-dark)}
.to-top svg{width:20px;height:20px}

/* CTA 区 */
.cta-band{background:linear-gradient(120deg,var(--red) 0%,#D8452F 55%,#C2332B 100%);color:#fff;border-radius:18px;padding:52px 56px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;position:relative}

/* 合作伙伴 logo 条 */
.partner-logos{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:28px}
.partner-logos .pl{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 10px;display:flex;align-items:center;justify-content:center;min-height:72px;transition:all .2s}
.partner-logos .pl:hover{border-color:var(--green);box-shadow:var(--shadow)}
.partner-logos .pl img{max-height:46px;width:auto;object-fit:contain;filter:grayscale(.35)}
.partner-logos .pl:hover img{filter:none}
/* 联合体单位墙 */
.union-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.union-item{border-radius:12px;  border: 1px solid var(--line);  overflow:hidden;transition:transform .25s,box-shadow .25s;cursor:pointer;line-height:0}
.union-item:hover{transform:scale(1.05);box-shadow:0 14px 30px rgba(0,0,0,.38)}
.union-item{background:#fff}
.union-item img{width:100%;height:84px;object-fit:contain;display:block;padding:12px 10px;box-sizing:border-box}
@media (max-width:1080px){.union-item{border-radius:8px}}
/* 浅色背景下单位墙 */
.union-wall .union-item:hover{box-shadow:var(--shadow-lg)}
.union-more{display:flex;align-items:center;justify-content:center;line-height:1;cursor:default}
.union-more:hover{transform:none;box-shadow:none}
.union-more span{display:block;font-size:30px;font-weight:700;color:#94A3B8;letter-spacing:5px;line-height:1}
.union-more:hover span{color:var(--green)}

/* ============================================================
   关于我们 · 组织架构图（原生）
   ============================================================ */
.org{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:36px 32px;box-shadow:var(--shadow)}
.org-cols{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:760px;margin:0 auto}
.org-company{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff;border-radius:12px;padding:22px;text-align:center;box-shadow:0 8px 20px rgba(11,32,51,.18)}
.org-company b{display:block;font-size:16.5px;font-weight:800;line-height:1.4}
.org-company small{display:block;margin-top:6px;color:#9FB6CC;font-size:10.5px;letter-spacing:.08em}
.org-link{display:flex;align-items:center;justify-content:center;gap:10px;color:var(--green);font-size:12.5px;font-weight:700;letter-spacing:.12em;margin:18px 0}
.org-link svg{width:16px;height:16px}
.org-link::before,.org-link::after{content:"";width:56px;height:1px;background:linear-gradient(90deg,transparent,var(--green));}
.org-link::after{background:linear-gradient(90deg,var(--green),transparent)}
.org-body{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.org-block{border:1px solid var(--line);border-radius:12px;padding:22px 18px;background:#F8FAFC}
.org-block h4{font-size:14.5px;color:var(--navy);font-weight:800;letter-spacing:.08em;text-align:center;margin-bottom:18px;position:relative}
.org-block h4::after{content:"";position:absolute;left:50%;bottom:-8px;transform:translateX(-50%);width:26px;height:2.5px;background:var(--green);border-radius:2px}
.org-chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.org-chip{border:1px solid #C4DAF2;background:#EAF2FC;color:#1F4E86;border-radius:999px;padding:9px 16px;font-size:13.5px;font-weight:700;text-align:center;line-height:1.4}
.org-chip small{display:block;color:#5A7BA6;font-weight:400;font-size:11.5px;margin-top:3px}
.org-chip--green{background:var(--green-soft);border-color:#BFE9DB;color:#0B6B54}
.org-chip--green small{color:#3E8E78}
.org-note{text-align:center;font-size:12.5px;color:var(--muted);margin-top:14px;letter-spacing:.05em}
.org-note b{color:var(--green)}
.org-foot{display:flex;justify-content:center;gap:14px;margin-top:22px;flex-wrap:wrap}
.org-foot .f{display:inline-flex;align-items:center;gap:8px;border:1px solid #F3C9C4;background:var(--red-soft);color:#8E2B25;border-radius:999px;padding:10px 22px;font-size:13.5px;font-weight:700}
.org-foot .f svg{width:14px;height:14px}

/* ============================================================
   关于我们 · 专家团队卡片（原生）
   ============================================================ */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.expert-card{background:linear-gradient(180deg,#F5F3FE 0%,#FFFFFF 46%);border:1px solid #E6E2F5;border-radius:var(--radius);padding:26px 22px;position:relative;overflow:hidden;transition:transform .25s,box-shadow .25s}
.expert-card::before{content:"";position:absolute;top:-60px;right:-60px;width:150px;height:150px;border-radius:50%;background:radial-gradient(circle,rgba(126,105,224,.16),transparent 70%)}
.expert-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.expert-avatar{width:88px;height:88px;border-radius:50%;object-fit:cover;display:block;margin-bottom:16px;box-shadow:0 8px 22px rgba(78,143,224,.32);border:3px solid #fff;background:#EAF0FA}
.expert-card h3{font-size:16px;font-weight:800;color:var(--navy);line-height:1.3}
.expert-card .x-title{color:var(--green);font-weight:700;font-size:13px;margin:3px 0 2px}
.expert-card .x-org{color:var(--muted);font-size:13px;margin-bottom:12px}
.expert-card ul{list-style:none}
.expert-card ul li{position:relative;padding-left:14px;font-size:12.5px;color:var(--text);line-height:1.6;margin-bottom:5px}
.expert-card ul li::before{content:"";position:absolute;left:0;top:8px;width:5px;height:5px;border-radius:50%;background:var(--green)}
@media (max-width:1080px){.union-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:680px){.union-grid{grid-template-columns:repeat(2,1fr)}}
.cta-band h3{font-size:26px;font-weight:900;margin-bottom:8px}
.cta-band p{font-size:15px;color:#FFE3DF;max-width:560px}
.cta-band .btn{background:#fff;color:var(--red)}
.cta-band .btn:hover{background:var(--navy);color:#fff}

/* 滚动出现 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .nums{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr);gap:18px 0}
  .steps::before{display:none}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:992px){
  .nav-toggle{display:flex}
  .menu{position:fixed;top:72px;left:0;right:0;background:#0A2138;flex-direction:column;align-items:stretch;padding:14px 20px 22px;gap:2px;max-height:0;overflow:hidden;opacity:0;transition:all .3s;border-bottom:1px solid rgba(255,255,255,.08)}
  .menu.open{max-height:640px;opacity:1;overflow:auto}
  .menu>li>a{padding:13px 10px;font-size:16px}
  .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:rgba(255,255,255,.06);border:0;border-radius:10px;margin:2px 0 8px;padding:4px;display:none}
  .menu>li.has-sub.open .submenu{display:block}
  .submenu a{color:#D6E0EC}
  .submenu a small{color:#9FB6CC}
  .submenu a:hover{background:rgba(255,255,255,.1);color:#fff}
  .nav-cta{display:none}
  .split{grid-template-columns:1fr;gap:28px}
  .hero{padding:140px 0 70px}
  .hero h1{font-size:34px}
  .hero-stats{grid-template-columns:repeat(2,1fr);margin-top:40px}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .partner-logos{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:680px){
  .section{padding:56px 0}
  .sec-head h2{font-size:25px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .partner-logos{grid-template-columns:repeat(2,1fr)}
  .nums{grid-template-columns:1fr 1fr;gap:14px}
  .hero h1{font-size:27px}
  .hero p.lead{font-size:15.5px}
  .hero-actions .btn{min-width:100%;}
  .cta-band{padding:34px 26px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-main{grid-template-columns:1fr}
  .footer-bottom{justify-content:center;text-align:center}
  .brand-name span{display:none}
  .flow .f-item + .f-item{margin-left:0;margin-top:14px}
  .flow .f-item + .f-item::before,.flow .f-item + .f-item::after{display:none}
  .expert-grid{grid-template-columns:1fr}
  .org-cols,.org-body{grid-template-columns:1fr}
  .org{padding:26px 18px}
}

/* ============================================================
   工业降碳 - 五大关键技术流程图（原生代码替代 p11 图）
   ============================================================ */
.techflow{background:linear-gradient(165deg,#0B1F33 0%,#0E2B3F 55%,#113247 100%);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:22px 20px;display:flex;flex-direction:column;gap:10px;box-shadow:var(--shadow);height:100%}
.tf-block{background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:12px 14px}
.tf-title{font-size:14.5px;font-weight:800;color:#7FE0B4;letter-spacing:.02em;display:flex;align-items:center;gap:8px;margin-bottom:9px}
.tf-title::before{content:"";width:4px;height:15px;border-radius:2px;background:linear-gradient(180deg,#2ED08D,#0FA37F)}
.tf-chips{display:flex;flex-wrap:wrap;gap:6px}
.tf-chips span{font-size:12px;color:#C9E6F5;background:rgba(63,178,222,.14);border:1px solid rgba(63,178,222,.25);border-radius:20px;padding:3px 10px;white-space:nowrap}
.tf-block--mid .tf-pair{display:flex;align-items:center;gap:7px;flex-wrap:wrap;font-size:13px;font-weight:700;color:#EAF7FF;margin-bottom:9px}
.tf-pair i{font-style:normal;color:#2ED08D}
.tf-block--base .tf-title{color:#FFC46B}
.tf-arrow{text-align:center;color:#2ED08D;line-height:0}
.tf-arrow svg{width:15px;height:15px}

/* ============================================================
   工业降碳 - 五大关键技术环形图（环环相扣）
   ============================================================ */
.techflow-ring{position:relative;width:100%;max-width:720px;margin:0 auto;aspect-ratio:1/1;background:radial-gradient(circle at center,#12324A 0%,#0B1F33 70%);border:1px solid rgba(255,255,255,.08);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}
.tf-ring-lines{position:absolute;inset:0;width:100%;height:100%}
.tf-line{stroke:rgba(46,208,141,.6);stroke-width:2;fill:none;stroke-dasharray:7 6}
.tf-node{position:absolute;transform:translate(-50%,-50%);width:26%;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:12px;padding:9px 10px;text-align:center;backdrop-filter:blur(4px)}
.tf-node b{display:block;font-size:13px;color:#7FE0B4;margin-bottom:6px;line-height:1.35}
.tf-node .tags{display:flex;flex-wrap:wrap;gap:4px;justify-content:center}
.tf-node .tags span{font-size:10.5px;color:#C9E6F5;background:rgba(63,178,222,.14);border:1px solid rgba(63,178,222,.25);border-radius:20px;padding:2px 8px;white-space:nowrap}
.tf-node .chain{font-size:11px;color:#EAF7FF;font-weight:700;margin-top:6px;line-height:1.5}
.tf-node .chain i{font-style:normal;color:#2ED08D;margin:0 2px}
.tf-core{position:absolute;left:50%;top:46%;transform:translate(-50%,-50%);width:28%;aspect-ratio:1/1;background:linear-gradient(145deg,rgba(22,66,88,.95),rgba(11,38,56,.97));border:2px solid rgba(46,208,141,.6);border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:5%;box-shadow:0 0 46px rgba(46,208,141,.28)}
.tf-core b{color:#fff;font-size:12px;line-height:1.45}
.tf-base{position:absolute;left:50%;bottom:3.5%;transform:translateX(-50%);display:flex;gap:6px;flex-wrap:wrap;justify-content:center;width:94%;z-index:2}
.tf-base span{font-size:10px;color:#C9E6F5;background:rgba(63,178,222,.12);border:1px solid rgba(63,178,222,.22);border-radius:20px;padding:3px 10px;white-space:nowrap}
@media(max-width:860px){
  .tf-node{width:30%;padding:7px 8px}
  .tf-node b{font-size:11.5px}
  .tf-node .tags span{font-size:9px;padding:2px 6px}
  .tf-node .chain{font-size:10px}
  .tf-core{width:30%}
  .tf-core b{font-size:12px}
  .tf-core small{font-size:8.5px}
}

/* 工业降碳 - 五大关键技术 右侧分行列表 */
.tl-list li{display:flex;gap:10px;align-items:flex-start;padding:11px 0;font-size:13.5px;color:var(--text);border-bottom:1px dashed rgba(15,163,127,.25)}
.tl-list li:last-child{border-bottom:none}
.tl-list b{white-space:nowrap;font-weight:800;color:var(--green);font-size:15px;display:block;margin-bottom:3px}
.tl-list p{margin:0;color:var(--muted);line-height:1.65}
.tl-list svg{flex:0 0 18px;width:18px;height:18px;color:var(--green);margin-top:4px}