/* ===== 全站基础样式（一级页面：首页/通用组件） ===== */
:root{--green:#2FA37E;--green-dark:#1B7A5C;--green-light:#E3F4EE;--accent:#E8762C;--accent-dark:#C95F1B;--text:#23463A;--muted:#5B6E66;--line:#DFEAE5;--radius:10px}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text);line-height:1.7;background:#fff;overflow-x:clip}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
/* ===== header ===== */
.topbar{background:var(--green-dark);color:#fff;font-size:13px;padding:8px 0}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center}
.topbar a{color:#fff}
header.site{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-weight:600;font-size:20px;color:var(--green-dark)}
.logo a{display:flex;align-items:center;gap:10px;white-space:nowrap}
.logo .mark{width:38px;height:38px;background:var(--green);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:19px;font-weight:700}
.nav-links{display:flex;gap:26px;font-size:15px}
.nav-links a{color:#333;transition:color .2s}
.nav-links a:hover,.nav-links a.on{color:var(--green);font-weight:500}
.nav-tel{display:flex;align-items:center;gap:14px}
.nav-tel .tel{font-size:17px;font-weight:700;color:var(--green);white-space:nowrap}
.btn{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;padding:10px 22px;border-radius:30px;transition:background .2s;border:none;cursor:pointer}
.btn:hover{background:var(--accent-dark)}
.btn.ghost{background:transparent;color:var(--green);border:1.5px solid var(--green)}
.btn.ghost:hover{background:var(--green-light)}
.hamburger{display:none;background:none;border:none;font-size:26px;color:var(--green-dark);cursor:pointer}
/* ===== hero ===== */
.hero{background:linear-gradient(160deg,#F8FBF9 0%,#E7F4EC 100%);color:var(--text);padding:88px 0 96px}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1fr) .85fr;gap:48px;align-items:center}
.hero h1{font-size:38px;line-height:1.35;margin-bottom:18px;font-weight:700;color:#1B4E3B}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero h1 .nowrap{white-space:nowrap}
.hero p.sub{font-size:17px;color:var(--muted);margin-bottom:14px}
.hero ul.points{list-style:none;margin:18px 0 30px;display:grid;gap:10px}
.hero ul.points li{display:flex;align-items:center;gap:10px;font-size:15px}
.hero ul.points li .dot{width:20px;height:20px;border-radius:50%;background:var(--green-light);display:flex;align-items:center;justify-content:center;font-size:11px;color:var(--green);flex:none}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:0 12px 32px rgba(27,122,92,.10)}
.hero-card h3{font-size:18px;margin-bottom:14px;color:var(--green-dark)}
.hero-card .note{font-size:12px;color:var(--muted);margin-top:10px;text-align:center}
.hero-card .card-tip{font-size:14px;color:var(--muted);margin-bottom:12px;line-height:1.6}
.hero-card .wx-id{background:#F4F8F6;border:1px dashed var(--green);border-radius:8px;padding:11px;text-align:center;font-size:14px;color:var(--text);margin-bottom:12px}
.hero-card .wx-id b{color:var(--green-dark)}
/* ===== section ===== */
section{padding:72px 0}
section.alt{background:#F6FAF8}
/* 首页模块间距收紧：仅首页，排除首屏(hero)与底部表单(.alt内联padding) */
.home-page>section:not(.hero){padding:56px 0}
/* 资讯文章与上方白底模块（服务案例）相邻，去掉其顶部叠加空白 */
.home-page>section.news{padding-top:0}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head h2{font-size:30px;color:var(--green-dark);margin-bottom:10px}
.sec-head p{color:var(--muted);font-size:15px}
/* trust */
.trust{background:#fff;border-bottom:1px solid var(--line)}
.trust .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:0;text-align:center}
.trust .item{padding:28px 12px}
.trust .item+.item{border-left:1px solid var(--line)}
.trust .num{font-size:34px;font-weight:700;color:var(--green)}
.trust .lbl{font-size:14px;color:var(--muted);margin-top:4px}
/* services */
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.svc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:all .25s}
.svc:hover{border-color:var(--green);box-shadow:0 8px 24px rgba(11,110,79,.08);transform:translateY(-3px)}
.svc .ic{width:52px;height:52px;border-radius:12px;background:var(--green-light);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.svc h3{font-size:17px;margin-bottom:8px;color:var(--green-dark)}
.svc p{font-size:13.5px;color:var(--muted)}
.svc .more{display:inline-block;margin-top:14px;font-size:13.5px;color:var(--green);font-weight:500}
.svc ul{list-style:none;margin-top:10px;display:grid;gap:6px}
.svc ul li{font-size:13px;color:var(--muted);padding-left:16px;position:relative}
.svc ul li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--green)}
/* cities */
.cities .wrap{max-width:1180px}
/* cases */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all .25s}
.case:hover{box-shadow:0 8px 24px rgba(11,110,79,.08)}
.case .ph{height:170px;background:linear-gradient(135deg,#DCEEE6,#BFE0D2);display:flex;align-items:center;justify-content:center;color:var(--green);font-size:14px;letter-spacing:2px;overflow:hidden;position:relative}
.case .ph img{width:100%;height:100%;object-fit:cover;display:block}
.case .bd{padding:18px 20px}
.case h3{font-size:16px;margin-bottom:6px;color:var(--green-dark)}
.case p{font-size:13.5px;color:var(--muted)}
/* news */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;transition:all .25s}
.news-item:hover{border-color:var(--green);box-shadow:0 8px 24px rgba(47,163,126,.08)}
.news-item .date{display:inline-block;font-size:12px;color:var(--green);background:var(--green-light);border-radius:6px;padding:3px 8px;margin-bottom:10px;align-self:flex-start}
.news-item h3{font-size:15.5px;color:var(--green-dark);margin-bottom:8px;line-height:1.6}
.news-item p{font-size:13.5px;color:var(--muted);margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-item .more{font-size:13.5px;color:var(--green);font-weight:500;margin-top:auto}
/* 资讯列表页：单列横向卡片（日期在左、内容在右） */
.news-list{max-width:900px;margin:0 auto;display:grid;gap:14px}
.news-list .news-item{flex-direction:row;align-items:center;gap:22px;padding:18px 22px;border-radius:14px}
.news-list .news-item .date{flex:none;width:64px;margin:0;text-align:center;font-size:13px;font-weight:500;padding:8px 0;border-radius:10px}
.news-list .news-item .news-body{flex:1;min-width:0}
.news-list .news-item h3{margin-bottom:6px;font-size:16.5px}
.news-list .news-item p{margin-bottom:8px;-webkit-line-clamp:2}
.news-list .news-item .more{margin-top:0}
/* faq */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;margin-bottom:12px}
.faq-item h3{font-size:15.5px;color:var(--green-dark);display:flex;gap:10px;cursor:pointer}
.faq-item h3 .q{color:var(--accent);font-weight:700;flex:none}
.faq-item .a{font-size:14px;color:var(--muted);margin-top:10px}
.faq-more{display:inline-block;margin-top:8px;color:var(--green);font-weight:600;font-size:13.5px}
.faq-more:hover{text-decoration:underline}
.faq-item.open .a{display:block}
/* 问答页：深度解答折叠块（首页快问快答剥离此块，仅 wend 页展开） */
.faq-detail{display:none;margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);font-size:14px;color:var(--muted);line-height:1.85}
.faq-item.open .faq-detail{display:block}
.faq-detail .fd-t{font-size:13px;font-weight:600;color:var(--green-dark);margin-bottom:8px;letter-spacing:.5px}
.faq-detail p{margin-bottom:10px}
.faq-toggle{display:inline-block;margin-top:8px;font-size:13px;color:var(--accent);font-weight:600;cursor:pointer;user-select:none}
.faq-toggle:hover{text-decoration:underline}
/* 甲醛问答枢纽页：问答样式卡片，点击进独立 QA 文章页 */
.qa-hub{max-width:900px;margin:28px auto 56px;display:flex;flex-direction:column;gap:14px}
.qa-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:box-shadow .2s,border-color .2s,transform .2s}
.qa-card:hover{box-shadow:0 6px 18px rgba(0,0,0,.08);border-color:var(--accent);transform:translateY(-2px)}
.qa-link{display:flex;align-items:flex-start;gap:14px;padding:18px 20px;text-decoration:none;color:inherit}
.qa-link .q{flex:0 0 30px;width:30px;height:30px;border-radius:50%;background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;line-height:1;margin-top:2px}
.qa-text{flex:1}
.qa-text h3{font-size:16px;font-weight:600;color:var(--text);margin-bottom:6px;line-height:1.4}
.qa-text p{font-size:13.5px;color:var(--muted);line-height:1.6;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.qa-arrow{flex:0 0 auto;color:var(--accent);font-weight:600;font-size:18px;align-self:center;transition:transform .2s}
.qa-card:hover .qa-arrow{transform:translateX(4px)}
.qa-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.qa-date{flex:0 0 auto;font-size:12.5px;color:var(--muted);white-space:nowrap}
/* QA 独立文章页：标题下日期/分类 meta 行 */
.qa-meta{display:flex;align-items:center;gap:12px;margin:0 0 14px;font-size:13px;color:var(--muted)}
.qa-meta .qa-cat{display:inline-block;padding:2px 10px;border-radius:999px;background:#F2FAF6;color:var(--green-dark);font-size:12px}
/* QA 独立文章页：白底页面顶部/底部留白；面包屑仍由 .crumb-bar 管左基线，正文区不设额外偏移 */
.wend-wrap{padding-top:24px;padding-bottom:44px}
/* 文章核心阅读区：居中舒适栏宽（760px），避免通栏太宽阅读疲劳；与顶部左对齐面包屑形成正常层级 */
.wend-inner{max-width:760px;margin:0 auto}
/* 非文章页（除醛项目/案例/关于/联系/城市页/城市FAQ）：统一内容列到 900px，与 wend 列表对齐；双类优先级高于 .wend-inner */
.wend-inner.page-wide{max-width:900px;margin:0 auto}
/* 顶部 hero 满宽（services/about/cases/cities 复用）：专属类 hero-full 破栏到视口满宽，不动正文 900 列 */
.wend-inner.page-wide > .page-hero.hero-full,
.wend-inner.page-wide > .about-hero.hero-full{
  width:100vw;
  position:relative;
  left:50%;
  right:50%;
  margin-left:-50vw;
  margin-right:-50vw;
  margin-top:-24px;
}
.qa-detail .a-title{font-size:26px;font-weight:600;color:var(--text);margin-bottom:14px;line-height:1.4}
.qa-detail .lead{font-size:16px;color:var(--text);line-height:1.85;margin-bottom:22px;padding-bottom:18px;border-bottom:1px dashed var(--line)}
.qa-detail .article-body p{font-size:15px;color:var(--text);line-height:1.9;margin-bottom:14px}
.qa-detail .article-body h2{font-size:19px;font-weight:600;color:var(--green-dark);margin:26px 0 12px;line-height:1.4;padding-left:12px;border-left:3px solid var(--green)}
/* QA 独立文章页：相关解答（内链模块） */
.qa-related{margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.qa-related-t{font-size:18px;font-weight:600;color:var(--text);margin-bottom:16px}
.qa-related-list{display:flex;flex-direction:column;gap:10px}
.qa-related-card{display:flex;align-items:center;gap:12px;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;color:var(--text);transition:box-shadow .2s,border-color .2s}
.qa-related-card:hover{box-shadow:0 4px 14px rgba(0,0,0,.06);border-color:var(--accent)}
.qa-related-card .qa-arrow{margin-left:auto;color:var(--accent);font-weight:600;font-size:17px;transition:transform .2s}
.qa-related-card:hover .qa-arrow{transform:translateX(4px)}
.qa-related-txt{flex:1;font-size:15px;font-weight:500}
/* 城市页/城市FAQ 底部：相关除醛知识（打通与知识栏目内链） */
.related-kb{background:#F6FBF8;padding:42px 0}
.related-kb .kb-list{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0 18px}
.related-kb .kb-list li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:box-shadow .2s,border-color .2s,transform .2s}
.related-kb .kb-list li:hover{box-shadow:0 6px 18px rgba(0,0,0,.08);border-color:var(--accent);transform:translateY(-2px)}
.related-kb .kb-list a{display:block;padding:16px 18px;font-size:15px;color:var(--text);line-height:1.5}
.related-kb .kb-list a::before{content:"📌 ";opacity:.55}
.related-kb .kb-more{text-align:center;margin:0}
.related-kb .kb-more a{color:var(--accent);font-weight:600;font-size:15px}
/* 城市页/栏目页下的"查看本城全部 FAQ"链接居中（城市页 faq 区块包在 .wrap 下，故用 .wrap 命中） */
.wrap .kb-more{text-align:center;margin:0}
@media(max-width:768px){.related-kb .kb-list{grid-template-columns:1fr}}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 16px;text-align:center}
.step .n{width:46px;height:46px;border-radius:50%;background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:13px;line-height:1;white-space:nowrap;margin:0 auto 12px}
.step h4{font-size:15px;color:var(--green-dark);margin-bottom:6px}
.step p{font-size:12.5px;color:var(--muted);line-height:1.6}
/* footer */
footer{background:#143D2F;color:#A9C6BA;padding:44px 0 30px;font-size:13.5px}
footer .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
footer h4{color:#E8F7F0;font-size:15px;margin-bottom:14px}
footer a{color:#B8E6D3}
footer a:hover{color:#fff}
footer .f-about p{line-height:1.9}
footer .f-links{display:grid;grid-template-columns:1fr 1fr;gap:8px 20px}
footer .bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;text-align:center;font-size:12.5px;color:#7FA393}
footer .bottom .beian{color:#7FA393;text-decoration:none}
footer .bottom .beian:hover{color:#a9c7b8}
/* floating */
.float{position:fixed;right:22px;bottom:26px;display:flex;flex-direction:column;gap:12px;z-index:200}
.fbtn{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;cursor:pointer;box-shadow:0 6px 18px rgba(0,0,0,.18)}
.fbtn.tel{background:var(--accent)}
.fbtn.wx{background:var(--green)}
.fbtn.top{background:var(--accent)}
.fbtn.top:hover{transform:translateY(-2px);transition:transform .2s}
.wx-pop{display:none;position:fixed;right:92px;bottom:26px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:0 12px 40px rgba(0,0,0,.18);z-index:210;text-align:center;width:220px}
.wx-pop.show{display:block}
.wx-pop .wx-close{position:absolute;top:8px;right:8px;width:30px;height:30px;border:none;background:#f0f0f0;color:#444;font-size:24px;font-weight:700;line-height:1;cursor:pointer;border-radius:50%;transition:all .2s}
.wx-pop .wx-close:hover{background:#e2e2e2;color:#111}
.wx-pop .qr{width:140px;height:140px;margin:0 auto 12px;background:#eee;border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:12px}
.wx-pop p{font-size:14px;margin-bottom:8px}
.wx-pop .copy{background:var(--green);color:#fff;border:none;border-radius:8px;padding:8px 18px;font-size:14px;cursor:pointer;width:100%}
.mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:190}
.mask.show{display:block}
/* responsive */
@media(max-width:960px){
.hero .wrap{grid-template-columns:1fr}
.hero{padding:56px 0}
.hero h1{font-size:28px}
.hero h1 .nowrap{white-space:normal}
.svc-grid{grid-template-columns:repeat(2,1fr)}
.case-grid{grid-template-columns:1fr}
.news-grid{grid-template-columns:1fr}
.steps{grid-template-columns:repeat(2,1fr)}
.trust .wrap{grid-template-columns:repeat(2,1fr)}
.trust .item+.item{border-left:none}
.trust .item{border-bottom:1px solid var(--line)}
footer .wrap{grid-template-columns:1fr;gap:24px}
.nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;gap:14px;border-bottom:1px solid var(--line)}
.nav-links.open{display:flex}
.hamburger{display:block}
.nav-tel .tel{display:none}
}

/* ============== 内页/通用专属样式（原 Set1 唯一规则，未与首页版冲突） ============== */

/* hero 文案（H1 等）保持居中；仅面包屑单独左对齐（见下方 .crumbs override） */
.page-hero{background:linear-gradient(160deg,#F2FAF6,#D9F0E4);padding:46px 0;text-align:center}
.page-hero h1{font-size:32px;color:#1B4E3B;margin-bottom:8px}
.page-hero p{color:var(--muted);font-size:15px}
.faq-hero{background:linear-gradient(160deg,#F2FAF6,#D9F0E4);padding:30px 0 46px;text-align:center}
.faq-hero h1{font-size:30px;color:#1B4E3B;margin-bottom:8px}
.faq-hero p.sub{color:var(--muted);font-size:15px}
/* 面包屑：全站统一——靠左、与正文同一条左基线（消除原双层 .wrap 导致的 20px 多缩进） */
.crumb-bar{padding:14px 0}
.crumb-bar>.wrap{max-width:1180px;margin:0 auto;padding:0 20px;display:block;box-sizing:border-box}
.crumbs{font-size:13px;color:var(--muted);text-align:left}
.crumbs a{color:var(--green)}
/* 全站面包屑：PC 端左缩进比正文/Logo 多 24px（20→44），脱离 Logo 竖线；移动端保持 20px 对齐正文 */
@media(min-width:961px){
  .crumb-bar>.wrap{padding-left:44px}
}
/* 资讯文章内页排版 */
.article-body{max-width:760px;margin:8px auto 0}
.article-body h1.a-title{font-size:25px;color:var(--green-dark);line-height:1.5;margin-bottom:14px}
.article-meta{font-size:13px;color:var(--muted);padding-bottom:14px;margin-bottom:22px;border-bottom:1px solid var(--line)}
.article-body h2{font-size:18px;color:var(--green-dark);line-height:1.5;margin:26px 0 12px;padding-left:11px;border-left:3px solid var(--green)}
.article-body p{font-size:15px;color:#333;line-height:1.9;margin-bottom:14px}
.article-body ul{margin:0 0 16px;padding-left:22px}
.article-body li{font-size:15px;color:#333;line-height:1.9;margin-bottom:7px;list-style:disc}
.article-body .btn{margin-top:18px}
.crumbs a:hover{text-decoration:underline}
.news-list{max-width:900px;margin:0 auto;display:grid;gap:16px}
.news-item .date{font-size:12.5px;color:#9AA89F;flex:none}
.city-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.city-cell{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px;text-align:center;font-size:14px;color:#333;transition:all .2s}
.city-cell:hover{border-color:var(--green);color:var(--green);font-weight:500}
.city-cell.hot{background:var(--green-light);border-color:var(--green);color:var(--green);font-weight:500}
@media(max-width:960px){
.nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;gap:14px;border-bottom:1px solid var(--line)}
.nav-links.open{display:flex}
.hamburger{display:block}
.nav-tel .tel{display:none}
.svc-grid{grid-template-columns:1fr}
.case-grid{grid-template-columns:1fr}
.city-grid{grid-template-columns:repeat(2,1fr)}
footer .wrap{grid-template-columns:1fr;gap:24px}
.news-item{flex-direction:column;align-items:flex-start}
}
.board{padding:0 0 56px}
.board.b2b{background:linear-gradient(165deg,#F2FAF6 0%,#E3F4EE 100%)}
.board.b2c{background:linear-gradient(165deg,#F2FAF6 0%,#E3F4EE 100%)}
.board-banner{color:#fff;padding:40px 0}
.board-banner.b2b{background:linear-gradient(120deg,#0F5C47 0%,#1B7A5C 55%,#2FA37E 100%)}
.board-banner.b2c{background:linear-gradient(120deg,#146B52 0%,#2FA37E 55%,#4AB58E 100%)}
.banner-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.b-left{display:flex;align-items:center;gap:22px}
.b-left .b-icon{width:72px;height:72px;border-radius:16px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);display:flex;align-items:center;justify-content:center;flex:none}
.b-left .b-en{font-size:13px;letter-spacing:4px;opacity:.85;margin-bottom:2px}
.b-left h2{font-size:42px;font-weight:700;line-height:1.15;letter-spacing:2px}
.b-right{text-align:right;max-width:680px;margin-left:auto}
.b-right p{font-size:19px;font-weight:500;margin-bottom:8px}
.b-right span{font-size:13px;opacity:.92;white-space:nowrap;letter-spacing:.3px}
.b-right .divider{width:52px;height:3px;background:rgba(255,255,255,.6);border-radius:3px;margin:10px 0 10px auto}
.wrap.board-body{padding-top:60px}
.sec-tip{text-align:center;color:var(--muted);font-size:13.5px;margin-bottom:26px}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:all .3s;display:flex;flex-direction:column}
.scene:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(27,122,92,.12);border-color:transparent}
.scene-img{height:132px;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}
.scene-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.scene-img svg{opacity:.9;transition:transform .3s}
.scene:hover .scene-img svg{transform:scale(1.08)}
.scene-img .no{position:absolute;left:14px;top:12px;font-size:12px;color:#fff;background:rgba(0,0,0,.18);border-radius:8px;padding:2px 10px;letter-spacing:1px}
.b2b .scene-img{background:linear-gradient(140deg,#1B7A5C,#2FA37E)}
.b2c .scene-img{background:linear-gradient(140deg,#1B7A5C,#2FA37E)}
.scene-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.scene-body h3{font-size:16.5px;color:var(--green-dark);margin-bottom:8px;display:flex;align-items:center;gap:8px}
.scene-body h3::after{content:"";flex:1;height:1px;background:var(--line)}
.scene-body p{font-size:13.5px;color:var(--muted);line-height:1.9}
.feat-list{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}
.feat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 16px;text-align:center;transition:all .25s}
.feat:hover{border-color:var(--green);box-shadow:0 8px 20px rgba(47,163,126,.10)}
.feat .fic{width:44px;height:44px;border-radius:50%;background:var(--green-light);display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.b2c .feat .fic{background:var(--green-light)}
.feat b{display:block;font-size:15px;color:var(--green-dark);margin-bottom:6px}
.feat span{font-size:12.5px;color:var(--muted);line-height:1.7;display:block}
.board-cta{text-align:center;margin-top:34px}
.board-cta .cta-box{display:inline-flex;align-items:center;gap:20px;background:#fff;border:1px solid var(--line);border-radius:30px;padding:12px 12px 12px 26px;box-shadow:0 6px 18px rgba(27,122,92,.06)}
.board-cta .cta-box span{color:var(--muted);font-size:14px}
.btn-cta{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;padding:12px 28px;border-radius:30px;border:none;cursor:pointer}
.btn-cta:hover{background:var(--accent-dark)}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:36px 24px;margin-top:38px}
.flow .step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 18px 22px;text-align:center;position:relative;display:flex;flex-direction:column;align-items:center;transition:all .25s}
.flow .step:hover{border-color:var(--green);box-shadow:0 12px 28px rgba(47,163,126,.12);transform:translateY(-4px)}
.flow .step .n{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,#E3F4EE,#D2EBE0);border:2px solid var(--green);color:var(--green-dark);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:20px;margin:0 auto 12px;box-shadow:0 6px 14px rgba(27,122,92,.10);position:static;letter-spacing:0}
.flow h4{font-size:16px;font-weight:600;color:var(--green-dark);margin-bottom:8px;letter-spacing:.5px}
.flow p{font-size:12.5px;color:var(--muted);line-height:1.65}
.flow + .note{display:inline-flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--green);border-radius:10px;padding:11px 20px;color:var(--muted);font-size:13px;margin-top:28px;text-align:left;box-shadow:0 4px 12px rgba(27,122,92,.05);max-width:720px}
.note{font-size:12.5px;margin-top:22px}
@media(max-width:960px){.scene-grid{grid-template-columns:1fr}.feat-list{grid-template-columns:repeat(2,1fr)}.flow{grid-template-columns:repeat(2,1fr);gap:26px 18px}.flow .step{padding:30px 14px 24px}.b-left h2{font-size:32px}.b-right{text-align:left}.b-right .divider{margin-left:0}.b-right span{white-space:normal}}
.city-hero{background:linear-gradient(160deg,#F2FAF6 0%,#D9F0E4 100%);padding:56px 0;color:var(--text)}
.city-hero .wrap{display:grid;grid-template-columns:1.3fr .7fr;gap:44px;align-items:center}
.city-hero h1{font-size:38px;color:#1B4E3B;margin-bottom:12px;line-height:1.3}
.city-hero h1 em{font-style:normal;color:var(--accent)}
.city-hero p.sub{font-size:16px;color:var(--muted);margin-bottom:18px}
.city-hero ul{list-style:none;display:grid;gap:8px;margin-bottom:24px}
.city-hero ul li{font-size:14px;color:var(--muted);padding-left:18px;position:relative}
.city-hero ul li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--green)}
.district-chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.district-chips span{background:#fff;border:1px solid var(--line);border-radius:22px;padding:7px 18px;font-size:13.5px;color:#333}
.district-chips span:hover{border-color:var(--green);color:var(--green)}
/* ===== 城市页关键词矩阵（SEO 长尾意图，清新 pills） ===== */
.kw-matrix{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-start;margin-top:6px}
.kw-matrix a{display:inline-block;background:#fff;border:1px solid var(--line);border-radius:20px;padding:7px 16px;font-size:13.5px;color:#333;transition:all .2s}
.kw-matrix a:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}
@media(max-width:768px){.kw-matrix{justify-content:center}}
/* 城市本地服务：三模块合并卡片（南京试点，方案B） */
.local-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:34px 32px;max-width:900px;margin:0 auto;box-shadow:0 8px 24px rgba(27,122,92,.06)}
.local-card .lc-block{padding:14px 0 0}
.local-card .lc-block:first-child{padding-top:0}
.local-card .lc-t{display:flex;align-items:center;gap:10px;font-size:18px;color:var(--green-dark);margin-bottom:16px;font-weight:700}
.local-card .lc-no{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:var(--green);color:#fff;font-size:12px;font-weight:700;flex:none}
.local-card .lc-p{color:var(--muted);line-height:1.9;font-size:15px;margin:0 0 12px}
.local-card .lc-list{list-style:none;display:grid;gap:9px;margin:0}
.local-card .lc-list li{position:relative;padding:9px 14px 9px 34px;background:#F6FBF8;border:1px solid var(--line);border-left:3px solid var(--green);border-radius:8px;color:var(--text);font-size:14px;line-height:1.6}
.local-card .lc-list li b{color:var(--green-dark)}
.local-card .lc-list li::before{content:"";position:absolute;left:13px;top:50%;transform:translateY(-50%);width:8px;height:8px;border-radius:50%;background:var(--green)}
.local-card .lc-tip{position:relative;margin-top:14px;padding:9px 14px 9px 34px;background:#FFF7EF;border:1px solid #F6D9BE;border-left:3px solid var(--accent);border-radius:8px;color:#A2560E;font-size:14px;line-height:1.6}
.local-card .lc-tip::before{content:"";position:absolute;left:13px;top:50%;transform:translateY(-50%);width:8px;height:8px;border-radius:50%;background:var(--accent)}
.local-card .district-chips,.local-card .kw-matrix{justify-content:flex-start}
@media(max-width:768px){.local-card{padding:22px 18px}.local-card .lc-t{font-size:16px}.local-card .district-chips,.local-card .kw-matrix{justify-content:center}}
.case-row{max-width:900px;margin:0 auto;display:grid;gap:14px}
.case-row .c{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 24px;display:flex;gap:16px;align-items:flex-start}
.case-row .c .ic{width:40px;height:40px;border-radius:10px;background:var(--green-light);display:flex;align-items:center;justify-content:center;flex:none}
.case-row .c h4{font-size:15px;color:var(--green-dark);margin-bottom:4px}
.case-row .c p{font-size:13.5px;color:var(--muted)}
.link-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.link-tags a{background:#fff;border:1px solid var(--line);border-radius:20px;padding:7px 18px;font-size:13.5px;color:var(--green-dark)}
.link-tags a:hover{border-color:var(--green);color:var(--green)}
.btn-cta{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;padding:12px 28px;border-radius:30px;border:none;cursor:pointer}
.btn-cta:hover{background:var(--accent-dark)}
@media(max-width:960px){.city-hero .wrap{grid-template-columns:1fr}.city-hero h1{font-size:30px}}
.city-nav{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;max-width:900px;margin:0 auto}
.city-nav a{background:#fff;border:1px solid var(--line);border-radius:22px;padding:8px 20px;font-size:14px;color:#333;transition:all .2s}
.city-nav a:hover{border-color:var(--green);color:var(--green)}
.city-nav a.on{background:var(--green);border-color:var(--green);color:#fff;font-weight:500}
.about-hero{background:linear-gradient(160deg,#F2FAF6 0%,#D9F0E4 100%);padding:64px 0 56px;text-align:center}
.about-hero .tag{display:inline-block;background:#fff;border:1px solid var(--green);color:var(--green);font-size:12.5px;border-radius:20px;padding:4px 14px;margin-bottom:14px;letter-spacing:1px}
.about-hero h1{font-size:34px;color:#1B4E3B;margin-bottom:10px;line-height:1.3}
.about-hero .lead{font-size:16px;color:var(--muted);max-width:760px;margin:0 auto 18px;line-height:1.9}
.about-hero .highlight{color:var(--green);font-weight:600}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:34px auto 0;max-width:560px}
.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 16px;text-align:center}
.stat b{display:block;font-size:30px;color:var(--green);font-weight:700;margin-bottom:4px}
.stat span{font-size:15.5px;color:#4a6b5e;font-weight:600;letter-spacing:.5px}
.about-body{max-width:900px;margin:0 auto;color:var(--muted)}
.about-body h2{font-size:23px;color:var(--green-dark);margin:42px 0 14px;padding-left:12px;border-left:4px solid var(--green)}
.about-body h2 small{font-size:13px;color:var(--muted);font-weight:400;margin-left:8px}
.about-body p{font-size:15px;line-height:2.1;margin-bottom:14px}
.about-body ul{list-style:none;display:grid;gap:10px;margin-bottom:14px}
.about-body ul li{font-size:14.5px;padding-left:22px;position:relative;line-height:1.8}
.about-body ul li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;background:var(--green)}
.qual-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:10px}
.qual-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 24px;position:relative;overflow:hidden}
.qual-card .badge{position:absolute;top:0;right:0;background:var(--green);color:#fff;font-size:11px;border-radius:0 0 0 8px;padding:4px 10px;letter-spacing:1px}
.qual-card h3{font-size:16px;color:var(--green-dark);margin-bottom:8px}
.qual-card p{font-size:13.5px;line-height:1.9;margin-bottom:0}
.step .code{font-size:11px;color:var(--accent);font-weight:600;margin-bottom:6px}
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
.case-item{background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px 18px;display:flex;gap:12px;align-items:center}
.case-item .ic{width:36px;height:36px;border-radius:8px;background:var(--green-light);display:flex;align-items:center;justify-content:center;flex:none}
.case-item h4{font-size:14px;color:var(--green-dark);margin-bottom:2px}
.case-item p{font-size:12px;margin-bottom:0}
.std-table{margin:14px 0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 28px}
.std-table h3{font-size:17px;color:var(--green-dark);text-align:center;margin-bottom:18px}
.std-table h3 em{font-style:normal;color:var(--accent);margin-left:6px}
.std-split{display:grid;grid-template-columns:1.3fr 1fr;gap:22px;align-items:start}
.std-col .std-tag{text-align:center;font-size:13px;font-weight:600;padding:8px;border-radius:8px;margin-bottom:10px;background:#EAF4EF;color:#5B6E66;letter-spacing:1px}
.std-col .std-tag.highlight{background:var(--green);color:#fff}
.std-col table{width:100%;border-collapse:collapse;font-size:13.5px}
.std-col th{background:#F2FAF6;color:var(--green-dark);font-weight:600;padding:9px 10px;border-bottom:2px solid var(--green);text-align:center}
.std-col td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:center;color:#23463A}
.std-col tr:nth-child(even) td{background:#FAFCFB}
.std-col tr:hover td{background:#E3F4EE}
.std-col td:first-child{text-align:left;color:var(--green-dark);font-weight:500}
.std-note{margin-top:12px;font-size:12.5px;color:var(--muted);line-height:1.7;background:var(--green-light);border-left:3px solid var(--green);padding:9px 12px;border-radius:6px}
@media(max-width:960px){.std-split{grid-template-columns:1fr}}
/* ===== 预约留资卡片（横版统一组件 .lf-hcard：左联系 / 右表单）===== */
.lf-hcard{max-width:900px;margin:0 auto;display:grid;grid-template-columns:2fr 3fr;
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  box-shadow:0 12px 32px rgba(27,122,92,.08)}
.lf-hcard .lf-side{background:linear-gradient(160deg,#F8FBF9,#E7F4EC);padding:20px 18px;display:flex;flex-direction:column;justify-content:space-between;gap:8px}
.lf-hcard .lf-contact-title{font-size:16px;font-weight:600;color:var(--green-dark);margin:0;padding-bottom:3px;border-bottom:1px solid rgba(27,122,92,.18)}
.lf-hcard .lf-crow{display:flex;align-items:center;gap:9px;text-decoration:none;background:#fff;border:1px solid var(--green);
  border-radius:8px;padding:9px 12px;cursor:pointer;width:100%;text-align:left;font-family:inherit;transition:border-color .2s,box-shadow .2s}
.lf-hcard .lf-crow:hover{border-color:var(--green-dark);box-shadow:0 0 0 3px var(--green-light)}
.lf-hcard .lf-cico{width:24px;height:24px;flex:none;border-radius:50%;background:var(--green);color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center}
.lf-hcard .lf-ctext{display:flex;flex-direction:column;line-height:1.3}
.lf-hcard .lf-ctext b{font-size:14px;color:var(--text);font-weight:500}
.lf-hcard .lf-ctext em{font-style:normal;font-size:11px;color:var(--muted);margin-top:1px}
.lf-hcard .lf-qr{margin:0;display:flex;flex-direction:column;align-items:center;gap:5px;background:#fff;border:1px dashed var(--green);border-radius:10px;padding:11px}
.lf-hcard .lf-qrbox{width:88px;height:88px;border:1px dashed var(--green);border-radius:8px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:10px;color:var(--green-dark);background:#fff;line-height:1.3}
.lf-hcard .lf-qrbox img{width:100%;height:100%;object-fit:cover;border-radius:7px;display:block}
.lf-hcard .lf-qr-tip{font-size:11px;color:var(--muted);margin:0}
.lf-hcard .lf-secure{margin:0;padding:9px 10px;text-align:center;font-size:11px;
  color:var(--green-dark);background:var(--green-light);border:1px solid var(--green);border-radius:8px;line-height:1.5}
.lf-hcard .lf-main{padding:20px 20px}
.lf-hcard .lf-title{font-size:16px;color:var(--green-dark);margin:0 0 5px}
.lf-hcard .lf-sub{font-size:13px;color:var(--muted);margin:0 0 10px}
.lf-hcard .lf-hint{font-size:11px;letter-spacing:-.2px;line-height:1.4;white-space:nowrap;color:var(--green-dark);background:var(--green-light);border:1px solid var(--green);border-radius:8px;padding:8px 11px;margin:0 0 12px;overflow:hidden;text-overflow:ellipsis}
.lf-hcard .lf-field{display:block;margin-bottom:11px}
.lf-hcard .lf-field span{display:block;font-size:12.5px;color:var(--green-dark);margin-bottom:4px;font-weight:500}
.lf-hcard .lf-field i{color:var(--accent);font-style:normal;margin-left:2px}
.lf-hcard input,.lf-hcard textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:8px 11px;font-size:14px;color:var(--text);font-family:inherit;background:#FBFDFC;transition:border-color .2s,box-shadow .2s}
.lf-hcard input:focus,.lf-hcard textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px var(--green-light)}
.lf-hcard .lf-choice{display:flex;gap:10px}
.lf-hcard .lf-radio{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);border-radius:8px;padding:8px 8px;font-size:14px;color:var(--text);background:#FBFDFC;cursor:pointer;transition:border-color .2s,box-shadow .2s,background .2s}
.lf-hcard .lf-radio:hover{border-color:var(--green)}
.lf-hcard .lf-radio input{accent-color:var(--green);width:15px;height:15px;margin:0}
.lf-hcard .lf-radio:has(input:checked){border-color:var(--green);background:var(--green-light);box-shadow:0 0 0 3px var(--green-light)}
.lf-hcard .lf-submit{width:100%;background:var(--green);color:#fff;font-size:15px;font-weight:600;padding:10px;border:none;border-radius:24px;cursor:pointer;transition:background .2s;margin-top:4px}
.lf-hcard .lf-submit:hover{background:var(--green-dark)}
.lf-hcard .lf-submit:disabled{opacity:.6;cursor:not-allowed}
.lf-hcard .lf-msg{margin-top:10px;font-size:13px;padding:8px 12px;border-radius:8px;line-height:1.5}
.lf-hcard .lf-msg.ok{background:var(--green-light);color:var(--green-dark);border:1px solid var(--green)}
.lf-hcard .lf-msg.err{background:#FDEDED;color:#C0392B;border:1px solid #F0C5C5}
@media(max-width:760px){.lf-hcard{grid-template-columns:1fr}.lf-hcard .lf-side{order:2}.lf-hcard .lf-hint{white-space:normal}}
@media(max-width:960px){.qual-grid{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.cases-grid{grid-template-columns:1fr}}

/* ===== 独立联系弹窗（弹出表单 · leadmodal） ===== */
.lead-mask{display:none;position:fixed;inset:0;background:rgba(18,40,32,.55);z-index:9000}
.lead-mask.show{display:block}
.lead-pop{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%) scale(.96);opacity:0;pointer-events:none;transition:opacity .22s ease,transform .22s ease;z-index:9001;width:min(620px,92vw);max-height:88vh;overflow:auto;background:#fff;border-radius:14px;box-shadow:0 24px 60px rgba(18,40,32,.28)}
.lead-pop.show{opacity:1;transform:translate(-50%,-50%) scale(1);pointer-events:auto}
.lead-pop .lp-close{position:absolute;top:12px;right:14px;width:30px;height:30px;border:none;background:var(--green-light);color:var(--green-dark);border-radius:50%;font-size:18px;line-height:1;cursor:pointer;z-index:2}
.lead-pop .lp-close:hover{background:#d3ece1}
.lead-pop .lp-hcard{display:flex;flex-wrap:wrap}
.lead-pop .lp-side{flex:0 0 250px;background:linear-gradient(160deg,var(--green) 0%,var(--green-dark) 100%);color:#fff;padding:18px 20px}
.lead-pop .lp-side .lp-t{font-size:17px;font-weight:700;margin:0 0 12px}
.lead-pop .lp-crow{display:flex;align-items:center;gap:9px;background:rgba(255,255,255,.12);border:none;color:#fff;padding:9px 12px;border-radius:9px;width:100%;margin-bottom:9px;cursor:pointer;text-align:left;text-decoration:none}
.lead-pop .lp-crow .lp-cico{width:28px;height:28px;border-radius:7px;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:13px;flex:none}
.lead-pop .lp-crow b{display:block;font-size:14px}
.lead-pop .lp-crow em{font-style:normal;font-size:11.5px;opacity:.85}
.lead-pop .lp-qr{margin-top:10px;text-align:center}
.lead-pop .lp-qrbox{width:90px;height:90px;background:#fff;border-radius:9px;margin:0 auto 5px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.lead-pop .lp-qrbox img{width:100%;height:100%;object-fit:cover;display:block}
.lead-pop .lp-qr-tip{font-size:11.5px;opacity:.9}
.lead-pop .lp-secure{font-size:11.5px;opacity:.85;margin-top:10px;line-height:1.6}
.lead-pop .lp-main{flex:1 1 260px;padding:18px 22px;min-width:240px}
.lead-pop .lp-title{font-size:18px;font-weight:700;color:var(--green-dark);margin:0 0 5px}
.lead-pop .lp-hint{font-size:12.5px;color:var(--muted);margin:0 0 10px;line-height:1.5}
.lead-pop .lp-field{display:block;margin-bottom:9px}
.lead-pop .lp-field>span{display:block;font-size:12.5px;margin-bottom:4px;color:var(--text)}
.lead-pop .lp-field>span i{color:var(--accent);font-style:normal}
.lead-pop .lp-field input{width:100%;padding:8px 11px;border:1px solid var(--line);border-radius:8px;font-size:13.5px;color:var(--text);outline:none}
.lead-pop .lp-field input:focus{border-color:var(--green)}
.lead-pop .lp-choice{display:flex;flex-direction:row;flex-wrap:nowrap;justify-content:center;gap:40px;align-items:center}
.lead-pop .lp-radio{display:flex;align-items:center;gap:6px;font-size:13.5px;cursor:pointer;white-space:nowrap}
.lead-pop .lp-submit{width:100%;background:var(--accent);color:#fff;border:none;padding:9px;border-radius:9px;font-size:14.5px;font-weight:600;cursor:pointer;margin-top:2px}
.lead-pop .lp-submit:hover{background:var(--accent-dark)}
.lead-pop .lp-msg{font-size:13px;margin-top:8px;display:none}
.lead-pop .lp-msg.ok{display:block;color:var(--green-dark);background:var(--green-light);border:1px solid var(--green);padding:8px 12px;border-radius:8px}
.lead-pop .lp-msg.err{display:block;color:#C0392B;background:#FDEDED;border:1px solid #F0C5C5;padding:8px 12px;border-radius:8px}
@media(max-width:768px){.lead-pop .lp-side{order:2;flex-basis:100%}}