/* 北京世纪锦林装饰材料有限公司 · 新版官网 */
:root{
  --paper:#FBF8F3;
  --paper-2:#F3EDE3;
  --paper-3:#EAE1D3;
  --ink:#2C2119;
  --ink-2:#6B5B4C;
  --ink-3:#9A8B7B;
  --wood:#7B4A28;
  --wood-dark:#3B2718;
  --accent:#B4342B;
  --accent-soft:#F6E9E5;
  --gold:#C3A06A;
  --line:#E2D8C9;
  --white:#fff;
  --shadow:0 12px 34px rgba(59,39,24,.09);
  --shadow-lg:0 24px 60px rgba(44,33,25,.18);
  --sans:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.8;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.35;margin:0}
p{margin:0}
.wrap{width:min(1200px,calc(100% - 48px));margin:0 auto}
.serif{font-family:var(--serif)}
.muted{color:var(--ink-2)}

/* ---------- 顶部 ---------- */
.topbar{background:var(--wood-dark);color:#E9DCCB;font-size:12.5px;letter-spacing:.3px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px}
.topbar a:hover{color:#fff}
.topbar .tb-right{display:flex;gap:22px;align-items:center}
.topbar .tb-sep{color:#8B735B}
.header{position:sticky;top:0;z-index:60;background:rgba(251,248,243,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header .wrap{display:flex;align-items:center;justify-content:space-between;height:82px;gap:24px}
.brand{display:flex;align-items:center;gap:14px;min-width:0}
.brand img{height:52px;width:auto;object-fit:contain}
.brand .brand-txt{display:flex;flex-direction:column;border-left:1px solid var(--line);padding-left:14px;line-height:1.3}
.brand .brand-txt strong{font-family:var(--serif);font-size:16px;letter-spacing:1px;white-space:nowrap}
.brand .brand-txt span{font-size:10.5px;color:var(--ink-3);letter-spacing:1.2px;text-transform:uppercase;white-space:nowrap}
.nav{display:flex;align-items:center;gap:4px}
.nav a{position:relative;padding:10px 15px;font-size:14.5px;color:var(--ink-2);border-radius:3px;transition:.2s}
.nav a:hover{color:var(--wood);background:var(--paper-2)}
.nav a.active{color:var(--wood-dark);font-weight:600}
.nav a.active::after{content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;background:var(--accent)}
.header-actions{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:3px;font-size:14px;font-weight:500;letter-spacing:.5px;transition:.22s;white-space:nowrap}
.btn-primary{background:var(--wood);color:#fff}
.btn-primary:hover{background:var(--wood-dark);transform:translateY(-1px);box-shadow:var(--shadow)}
.btn-outline{border:1px solid var(--wood);color:var(--wood)}
.btn-outline:hover{background:var(--wood);color:#fff}
.btn-ghost{border:1px solid var(--line);color:var(--ink-2);background:transparent}
.btn-ghost:hover{border-color:var(--wood);color:var(--wood)}
.btn-light{background:#fff;color:var(--wood-dark)}
.btn-light:hover{background:var(--paper-2)}
.btn-sm{padding:8px 15px;font-size:13px}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle i{display:block;width:22px;height:2px;background:var(--ink);transition:.25s}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section.alt{background:var(--paper-2)}
.section.dark{background:var(--wood-dark);color:#F3E9DC}
.section.dark .muted{color:#C7B6A2}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:42px}
.sec-head .eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:2.5px;color:var(--accent);text-transform:uppercase;margin-bottom:12px;font-weight:600}
.sec-head .eyebrow::before{content:"";width:26px;height:1px;background:var(--accent)}
.sec-head h2{font-size:34px;letter-spacing:2px}
.sec-head p{color:var(--ink-2);max-width:520px;margin-top:10px;font-size:14.5px}
.sec-head .more{font-size:13.5px;color:var(--wood);display:inline-flex;gap:6px;align-items:center;border-bottom:1px solid var(--wood);padding-bottom:3px}
.sec-head .more:hover{color:var(--accent);border-color:var(--accent)}
/* 默认始终可见；启用脚本时用纯 CSS 动画淡入，不依赖观察器或定时器 */
.reveal{opacity:1;transform:none}
html.anim .reveal{animation:fadeUp .7s ease-out}
@keyframes fadeUp{0%{opacity:0;transform:translateY(18px)}100%{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){html.anim .reveal{animation:none}}

/* ---------- 首页 Hero ---------- */
.hero{position:relative;overflow:hidden;background:#241810;color:#fff}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(900px 500px at 80% 10%,rgba(123,74,40,.55),transparent 65%),
  repeating-linear-gradient(96deg,rgba(255,255,255,.018) 0 2px,transparent 2px 9px),
  linear-gradient(120deg,#241810 0%,#332216 60%,#241810 100%)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;padding-top:88px;padding-bottom:96px}
.hero-badge{display:inline-flex;align-items:center;gap:10px;border:1px solid rgba(255,255,255,.22);border-radius:2px;padding:7px 14px;font-size:12.5px;letter-spacing:2px;color:#E3CFAF;margin-bottom:30px}
.hero-badge i{width:6px;height:6px;background:var(--accent);border-radius:50%}
.hero h1{font-size:clamp(38px,4.2vw,58px);letter-spacing:5px;line-height:1.3;margin-bottom:22px}
.hero h1 em{font-style:normal;color:#D8B98C}
.hero .lead{font-size:16px;color:#D8CBBB;max-width:520px;line-height:2;margin-bottom:34px}
.hero .hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:34px;margin-top:54px;padding-top:28px;border-top:1px solid rgba(255,255,255,.14);flex-wrap:wrap}
.hero-stats div strong{display:block;font-family:var(--serif);font-size:28px;color:#E9D4B3;line-height:1.2}
.hero-stats div span{font-size:12.5px;color:#B7A794;letter-spacing:1px}
.hero-art{position:relative;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:170px 170px;gap:14px}
.hero-art figure{margin:0;overflow:hidden;border-radius:3px;position:relative;background:#3A2A1D}
.hero-art figure:first-child{grid-row:span 2}
.hero-art img{width:100%;height:100%;object-fit:cover;transition:transform 1s ease;filter:saturate(.9) sepia(.08)}
.hero-art figure:hover img{transform:scale(1.06)}
.hero-art figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(20,12,7,.35))}
.hero-art figcaption{position:absolute;left:14px;bottom:12px;z-index:2;font-size:12px;letter-spacing:2px;color:#F5E7D4;text-shadow:0 1px 6px rgba(0,0,0,.6)}
.hero-art .art-tag{position:absolute;right:-18px;bottom:-18px;background:var(--accent);color:#fff;padding:12px 16px;font-size:12px;letter-spacing:2px;writing-mode:vertical-rl;border-radius:2px;box-shadow:var(--shadow-lg);z-index:3}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:4px;overflow:hidden;transition:.28s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#D6C4AC}
.card .thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--paper-3)}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.card:hover .thumb img{transform:scale(1.07)}
.card .thumb .cat-tag{position:absolute;left:12px;top:12px;background:rgba(59,39,24,.86);color:#F2E5D2;font-size:11.5px;letter-spacing:1px;padding:4px 10px;border-radius:2px;backdrop-filter:blur(4px)}
.card .body{padding:18px 20px 20px;flex:1;display:flex;flex-direction:column}
.card .body h3{font-size:17px;letter-spacing:.5px;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .body p{font-size:13px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:44px}
.card .foot{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding-top:13px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-3)}
.card .foot .go{color:var(--wood);display:inline-flex;align-items:center;gap:5px}
.card .foot a:hover{color:var(--accent)}

/* ---------- 筛选 ---------- */
.filters{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:30px}
.chip{border:1px solid var(--line);background:#fff;padding:9px 20px;border-radius:2px;font-size:14px;color:var(--ink-2);transition:.2s}
.chip:hover{border-color:var(--wood);color:var(--wood)}
.chip.on{background:var(--wood);border-color:var(--wood);color:#fff}
.search-box{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:#fff;padding:0 14px;border-radius:2px;margin-left:auto;min-width:230px}
.search-box input{border:0;outline:0;background:transparent;padding:10px 0;width:100%;font-size:14px}
.search-box svg{flex:none;opacity:.5}
.count-line{font-size:13.5px;color:var(--ink-3);margin:-14px 0 26px}
.empty{padding:70px 20px;text-align:center;color:var(--ink-3);grid-column:1/-1;border:1px dashed var(--line);border-radius:4px}

/* ---------- 关于 / 特色 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split .visual{position:relative}
.split .visual img{border-radius:4px;box-shadow:var(--shadow)}
.split .visual .stamp{position:absolute;right:-24px;bottom:-24px;background:var(--wood);color:#fff;padding:22px 26px;border-radius:3px;box-shadow:var(--shadow-lg)}
.split .visual .stamp strong{display:block;font-family:var(--serif);font-size:34px;line-height:1.1}
.split .visual .stamp span{font-size:12px;letter-spacing:2px;color:#E5D0B4}
.feature-list{display:grid;gap:18px;margin-top:30px}
.feature-item{display:flex;gap:16px;align-items:flex-start}
.feature-item .num{font-family:var(--serif);font-size:19px;color:var(--accent);border:1px solid var(--line);width:40px;height:40px;display:flex;align-items:center;justify-content:center;flex:none;border-radius:2px;background:#fff}
.feature-item h4{font-size:15px;margin-bottom:3px}
.feature-item p{font-size:13.5px;color:var(--ink-2)}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{background:#fff;border:1px solid var(--line);padding:7px 14px;border-radius:2px;font-size:13px;color:var(--ink-2)}
.tag::before{content:"";display:inline-block;width:5px;height:5px;background:var(--gold);border-radius:50%;margin-right:9px;vertical-align:middle}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:0;counter-reset:step}
.step{position:relative;padding:28px 16px 24px;text-align:center;border-top:1px solid var(--line)}
.step::before{content:"";position:absolute;top:-5px;left:50%;transform:translateX(-50%);width:9px;height:9px;border-radius:50%;background:var(--paper);border:2px solid var(--accent)}
.step .n{font-family:var(--serif);font-size:24px;color:var(--accent);opacity:.55}
.step h4{font-size:14px;margin-top:6px;letter-spacing:.5px}
.step p{font-size:12.5px;color:var(--ink-3);margin-top:4px}

/* ---------- 案例 ---------- */
.case-card{position:relative;overflow:hidden;border-radius:4px;background:var(--wood-dark);cursor:pointer}
.case-card img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .7s ease,filter .5s ease;filter:saturate(.92)}
.case-card:hover img{transform:scale(1.07)}
.case-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(25,16,9,.86))}
.case-card .cap{position:absolute;left:20px;right:20px;bottom:18px;z-index:2;color:#fff}
.case-card .cap h3{font-size:17px;letter-spacing:1px}
.case-card .cap span{font-size:12px;color:#D8C6AE;letter-spacing:1px}

/* ---------- 新闻 ---------- */
.news-item{display:grid;grid-template-columns:170px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line);align-items:center}
.news-item .ni-img{aspect-ratio:4/3;background:var(--paper-3);border-radius:3px;overflow:hidden}
.news-item .ni-img img{width:100%;height:100%;object-fit:cover}
.news-item .ni-date{font-size:12px;letter-spacing:1.5px;color:var(--accent)}
.news-item h3{font-size:19px;margin:6px 0 8px}
.news-item p{font-size:13.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item .ni-more{font-size:13px;color:var(--wood);margin-top:8px;display:inline-block}
.news-body{white-space:pre-line;color:var(--ink-2);font-size:14.5px;line-height:2}

/* ---------- 原站链接 ---------- */
.origin-box{background:#fff;border:1px solid var(--line);border-radius:4px;padding:32px 36px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.origin-box .ob-title{font-family:var(--serif);font-size:20px;margin-bottom:6px}
.origin-box .ob-desc{font-size:13.5px;color:var(--ink-2)}
.origin-links{display:flex;flex-wrap:wrap;gap:10px}
.origin-links a{border:1px solid var(--line);padding:8px 14px;border-radius:2px;font-size:13px;color:var(--wood);background:var(--paper)}
.origin-links a:hover{border-color:var(--accent);color:var(--accent)}
.origin-links a.primary{background:var(--wood);color:#fff;border-color:var(--wood)}
.origin-links a.primary:hover{background:var(--wood-dark)}

/* ---------- CTA ---------- */
.cta-band{background:var(--wood-dark);color:#F5EDE2;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(96deg,rgba(255,255,255,.02) 0 2px,transparent 2px 10px)}
.cta-band .wrap{position:relative;display:flex;align-items:center;justify-content:space-between;gap:30px;padding-top:52px;padding-bottom:52px;flex-wrap:wrap}
.cta-band h2{font-size:27px;letter-spacing:2px;margin-bottom:8px}
.cta-band p{color:#CDBCA6;font-size:14px}
.cta-band .cta-tel{font-family:var(--serif);font-size:30px;color:#E3C596;letter-spacing:1px}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.info-card{background:#fff;border:1px solid var(--line);padding:28px 26px;border-radius:4px}
.info-card .ic-label{font-size:12px;letter-spacing:2px;color:var(--accent);margin-bottom:12px}
.info-card .ic-value{font-family:var(--serif);font-size:21px;word-break:break-all}
.info-card .ic-note{font-size:13px;color:var(--ink-3);margin-top:8px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:7px}
.field input,.field textarea{width:100%;border:1px solid var(--line);background:#fff;padding:12px 14px;border-radius:2px;outline:0;transition:.2s;font-size:14px}
.field input:focus,.field textarea:focus{border-color:var(--wood);box-shadow:0 0 0 3px rgba(123,74,40,.08)}
.field.full{grid-column:1/-1}
.field textarea{min-height:130px;resize:vertical}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:14px}

/* ---------- 页脚 ---------- */
.footer{background:#20150D;color:#C9B9A6;padding-top:66px;font-size:13.5px}
.footer .fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer h4{color:#F2E4D2;font-size:15px;margin-bottom:18px;letter-spacing:1px}
.footer .fabout p{line-height:1.9;color:#AB9A85}
.footer .fabout .flogo{height:46px;margin-bottom:18px;filter:brightness(0) invert(1);opacity:.92}
.footer li{margin-bottom:9px}
.footer a:hover{color:#E3C596}
.footer .fcontact strong{display:block;font-family:var(--serif);font-size:22px;color:#E3C596;letter-spacing:1px;margin-bottom:6px}
.footer .fbar{border-top:1px solid rgba(255,255,255,.09);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:#8E7C69;font-size:12.5px}
.footer .fbar a{color:#BBA88F}

/* ---------- 弹窗 / 灯箱 ---------- */
.overlay{position:fixed;inset:0;z-index:100;background:rgba(28,18,11,.78);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;padding:24px}
.overlay.open{display:flex}
.modal{background:var(--paper);width:min(920px,100%);max-height:88vh;overflow:auto;border-radius:5px;box-shadow:var(--shadow-lg);position:relative;animation:pop .28s ease}
@keyframes pop{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}
.modal .close{position:absolute;right:14px;top:12px;z-index:5;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.9);font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;color:var(--ink)}
.modal .close:hover{background:var(--accent);color:#fff}
.modal-grid{display:grid;grid-template-columns:1.15fr 1fr}
.modal-media{background:var(--wood-dark);min-height:420px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.modal-media img{width:100%;height:100%;object-fit:contain;max-height:520px}
.modal-info{padding:38px 34px}
.modal-info .m-cat{font-size:12px;letter-spacing:2px;color:var(--accent)}
.modal-info h3{font-size:25px;margin:10px 0 16px}
.modal-info .m-desc{color:var(--ink-2);font-size:14px;line-height:1.95;white-space:pre-line;max-height:220px;overflow:auto}
.modal-info .m-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.thumbs{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--line);overflow-x:auto}
.thumbs img{width:74px;height:56px;object-fit:cover;border:2px solid transparent;border-radius:2px;cursor:pointer;opacity:.65}
.thumbs img.on,.thumbs img:hover{opacity:1;border-color:var(--accent)}
.lightbox{background:transparent;box-shadow:none;width:auto;max-height:none}
.lightbox img{max-width:min(1100px,92vw);max-height:84vh;object-fit:contain;border-radius:3px}
.lightbox .close{right:0;top:-46px}

.back-top{position:fixed;right:22px;bottom:22px;z-index:50;width:44px;height:44px;border-radius:3px;background:var(--wood-dark);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;opacity:0;pointer-events:none;transition:.25s;box-shadow:var(--shadow)}
.back-top.show{opacity:1;pointer-events:auto}
.back-top:hover{background:var(--accent)}

/* ---------- 页面标题 ---------- */
.page-hero{background:var(--paper-2);border-bottom:1px solid var(--line);padding:56px 0 50px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-60px;top:-80px;width:340px;height:340px;border:1px solid rgba(123,74,40,.12);border-radius:50%}
.page-hero h1{font-size:36px;letter-spacing:3px;margin-bottom:10px}
.page-hero p{color:var(--ink-2);font-size:14.5px;max-width:640px}
.crumb{font-size:12.5px;color:var(--ink-3);margin-bottom:14px;letter-spacing:1px}
.crumb a:hover{color:var(--wood)}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .nav a{padding:10px 10px;font-size:13.5px}
  .brand .brand-txt span{display:none}
  .grid-4{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .hero .wrap{gap:36px}
}
@media(max-width:860px){
  .wrap{width:min(100% - 32px,1200px)}
  .nav-toggle{display:flex}
  .header .wrap{height:68px}
  .brand img{height:42px}
  .brand .brand-txt{display:none}
  .header-actions .btn{display:none}
  .nav{position:absolute;top:68px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 16px 18px;gap:2px;display:none;box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .nav a{padding:12px 10px;font-size:15px;border-bottom:1px solid var(--line)}
  .nav a.active::after{display:none}
  .nav .mobile-only{display:block}
  .section{padding:60px 0}
  .hero .wrap{grid-template-columns:1fr;padding-top:60px;padding-bottom:66px}
  .hero-art{grid-template-rows:130px 130px;max-width:520px}
  .hero h1{font-size:36px;letter-spacing:3px}
  .hero-stats{gap:22px;margin-top:38px}
  .split{grid-template-columns:1fr;gap:48px}
  .split .visual .stamp{right:12px;bottom:-18px}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px}
  .sec-head h2{font-size:28px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr 1fr}
  .footer .fgrid{grid-template-columns:1fr 1fr;gap:30px}
  .modal-grid{grid-template-columns:1fr}
  .modal-media{min-height:280px}
  .modal-info{padding:26px 24px}
  .search-box{margin-left:0;width:100%}
}
@media(max-width:560px){
  .topbar .tb-right span:not(:last-child){display:none}
  .grid-2,.grid-3,.grid-4,.contact-grid{grid-template-columns:1fr}
  .hero-art{grid-template-columns:1fr 1fr;grid-template-rows:120px 120px}
  .hero-art figure:first-child{grid-row:span 2}
  .hero-stats div strong{font-size:23px}
  .news-item{grid-template-columns:1fr;gap:14px}
  .news-item .ni-img{max-width:200px}
  .form-grid{grid-template-columns:1fr}
  .footer .fgrid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
  .step{padding:20px 8px}
  .origin-box{padding:24px 20px}
  .cta-band .cta-tel{font-size:24px}
}

/* ---------- SEO 落地页新增组件 ---------- */
.mobile-only{display:none}
.detail-text p{margin-bottom:14px;color:var(--ink-2);line-height:1.95}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gallery-tile{display:block;border:1px solid var(--line);border-radius:3px;overflow:hidden;background:#fff;aspect-ratio:4/3}
.gallery-tile img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.gallery-tile:hover img{transform:scale(1.05)}
.faq-list{display:grid;gap:16px}
.faq-item{background:#fff;border:1px solid var(--line);border-left:3px solid var(--accent);padding:20px 24px;border-radius:3px}
.faq-item h3{font-size:17px;margin-bottom:8px}
.faq-item p{font-size:14px;color:var(--ink-2);line-height:1.9}
.share-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-top:26px;margin-top:26px;border-top:1px solid var(--line)}
.share-bar>span{font-size:13.5px;color:var(--ink-2);margin-right:4px}
.kw-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.kw-link{display:block;background:#fff;border:1px solid var(--line);padding:20px 22px;border-radius:3px;transition:.25s}
.kw-link:hover{border-color:var(--wood);transform:translateY(-3px);box-shadow:var(--shadow)}
.kw-link strong{display:block;font-family:var(--serif);font-size:17px;color:var(--wood-dark);margin-bottom:6px}
.kw-link span{font-size:13px;color:var(--ink-2)}
.q-list{display:grid;gap:10px}
.q-list li{background:#fff;border:1px solid var(--line);padding:10px 16px;border-radius:2px;font-size:14px;color:var(--ink-2)}
.promo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.promo-card{background:#fff;border:1px solid var(--line);padding:24px 22px;border-radius:3px}
.promo-card>span{font-family:var(--serif);font-size:22px;color:var(--accent);opacity:.65}
.promo-card h3{font-size:17px;margin:8px 0 10px}
.promo-card p{font-size:13.5px;color:var(--ink-2);line-height:1.85}
.card>a{display:flex;flex-direction:column;height:100%;color:inherit}
@media(max-width:860px){
  .gallery,.promo-grid{grid-template-columns:repeat(2,1fr)}
  .kw-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .gallery,.promo-grid{grid-template-columns:1fr}
  .faq-item{padding:18px}
}