:root{
  --blue:#89C4E1;
  --blue-deep:#5A9BC0;
  --cream:#F8F6F0;
  --orange:#F5A623;
  --brown:#A0785C;
  --ink:#3A2E25;
  --muted:#8B7A6B;
  --max:1100px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--cream);line-height:1.7;-webkit-font-smoothing:antialiased}
.contact-card[id]{scroll-margin-top:84px}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid #eee}
.nav-inner{max-width:var(--max);margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:20px;font-weight:800;color:var(--brown);display:flex;align-items:center;gap:6px;text-decoration:none}
.logo img{height:20px;width:auto;object-fit:contain;display:block}
.logo-text{display:flex;align-items:center;line-height:1}
.logo-cn{font-size:20px;font-weight:800;font-family:"YouYuan","幼圆","Microsoft YaHei",sans-serif;color:var(--brown);line-height:1;white-space:nowrap;letter-spacing:0}
.nav-links{display:flex;gap:22px;font-size:15px}
.nav-links a{padding:6px 4px;color:var(--ink);transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--blue-deep);font-weight:600}

/* hero · PC 端 4:1 */
.hero{position:relative;color:#fff;height:0;padding-bottom:25%;text-align:center;background:url(../images/hero-bg-1920x400.jpg) center/cover no-repeat;overflow:hidden}
.hero-inner{position:absolute;top:50%;left:0;transform:translateY(-50%);width:100%;padding:0 20px}
.hero h1{font-size:42px;font-weight:800;margin-bottom:14px;text-shadow:0 2px 12px rgba(0,0,0,.2)}
.hero p{font-size:18px;opacity:.96;max-width:660px;margin:0 auto}
.hero .btn{display:inline-block;margin-top:28px;background:var(--orange);color:#fff;padding:13px 34px;border-radius:40px;font-weight:600;font-size:16px;box-shadow:0 6px 18px rgba(245,166,35,.4)}

/* 系列页 hero 背景图 */
.hero.hero-sunroom{background:url(../images/hero-bg-1920x400.jpg) center/cover no-repeat;color:#fff}
.hero.hero-campsite{background:url(../images/hero-bg-1920x400.jpg) center/cover no-repeat;color:#fff}
.hero.hero-img .hero-tag{display:inline-block;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.35);padding:6px 16px;border-radius:20px;font-size:13px;margin:0 4px 8px;backdrop-filter:blur(4px)}

/* sections */
.section{padding:64px 20px}
.section h2{font-size:28px;text-align:center;margin-bottom:10px;color:var(--brown)}
.section .sub{text-align:center;color:var(--muted);margin-bottom:40px}

/* series grid */
.series-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.series-card{border-radius:18px;overflow:hidden;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.06);transition:.25s;border:1px solid #f0ece4}
.series-card:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(0,0,0,.1)}
.series-card .ph{height:200px;width:100%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;font-weight:700;letter-spacing:3px}
.series-card .body{padding:22px}
.series-card .body h3{font-size:20px;margin-bottom:8px}
.series-card .body p{color:var(--muted);font-size:14px}
.series-card .body .tag{display:inline-block;margin-top:14px;color:var(--blue-deep);font-weight:600}

/* 系列卡片轮播 */
.series-card .ph.slide-card{position:relative;width:100%;overflow:hidden;padding:0;touch-action:pan-y}
.ph-slides{position:relative;width:100%;height:100%;display:flex;transition:transform .45s cubic-bezier(.4,0,.2,1)}
.ph-slides.dragging{transition:none}
.ph-slides img{width:100%;height:100%;flex:0 0 100%;max-width:none;object-fit:cover;object-position:center center;pointer-events:none;display:block}
.ph-dots{position:absolute;bottom:10px;left:50%;transform:translateX(-50%);display:flex;gap:7px;z-index:2}
.ph-dots span{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.5);transition:.25s;cursor:pointer}
.ph-dots span.active{background:#fff;transform:scale(1.15)}

/* product grid */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:22px}
.coming-soon{display:inline-block;margin:6px 0 22px;padding:8px 18px;border-radius:30px;background:#FFF8E8;border:1px dashed var(--orange);color:#a05a00;font-size:14px;font-weight:700}
.prod-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 6px 18px rgba(0,0,0,.05)}
.prod-card img{width:100%;height:200px;object-fit:cover;object-position:center center;display:block}
.prod-card .pbody{padding:18px}
.prod-card .ptag{font-size:12px;background:var(--cream);color:var(--brown);padding:3px 10px 3px 0;border-radius:0 20px 20px 0}
.prod-card h3{font-size:17px;margin:10px 0 6px}
.prod-card .desc{font-size:13px;color:var(--muted);height:62px;overflow:hidden}
.prod-card .price{margin-top:12px;color:var(--orange);font-weight:700;font-size:18px}
.prod-card .price s{color:#bbb;font-weight:400;font-size:14px;margin-left:8px}

/* cases */
.case-list{display:flex;flex-direction:column;gap:24px}
.case-card{display:flex;gap:20px;background:#fff;border:1px solid #eee;border-radius:16px;padding:18px;box-shadow:0 4px 16px rgba(0,0,0,.05);transition:.2s;scroll-margin-top:90px}
.case-card:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(0,0,0,.08)}
.case-imgs{flex:0 0 380px;display:flex;flex-direction:column;min-width:0}
.case-slider{width:100%;height:260px;border-radius:12px}
.case-slider .slider-track,.case-slider .slide{height:260px}
.case-slider .slide img{border-radius:12px}

/* 首页案例展示迷你卡片 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-mini-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 6px 18px rgba(0,0,0,.05);transition:.25s;border:1px solid #f0ece4;display:block;color:inherit}
.case-mini-card:hover{transform:translateY(-5px);box-shadow:0 14px 30px rgba(0,0,0,.1)}
.case-mini-card img{width:100%;height:200px;object-fit:cover;object-position:center center;display:block}
.case-mini-card .body{padding:18px}
.case-mini-card .tag{font-size:12px;background:var(--cream);color:var(--brown);padding:3px 10px;border-radius:20px;display:inline-block;margin-bottom:8px}
.case-mini-card h3{font-size:17px;margin:0 0 8px}
.case-mini-card p{font-size:13px;color:var(--muted);line-height:1.6;height:42px;overflow:hidden}
.case-mini-card .more{display:inline-block;margin-top:12px;color:var(--blue-deep);font-weight:600;font-size:13px}
.case-body{flex:1;display:flex;flex-direction:column;min-width:0}
.case-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.case-tag{font-size:12px;padding:3px 12px;border-radius:20px;font-weight:600;color:#fff}
.tag-blue{background:var(--blue)}
.tag-orange{background:var(--orange)}
.case-title{font-size:19px;color:var(--brown);margin-bottom:10px;line-height:1.35}
.case-desc{color:var(--muted);line-height:1.85;font-size:14px;margin:0}

/* 宠物舱卡片 · 牛奶+咖啡奶油风 */
.case-card{background:#FBF6EC;border:1px solid #EAD9BE}
.case-title{color:#6B4F38}
.case-desc{color:#7C6A55}
.case-tag.tag-blue{background:#8A6A4F;color:#FBF6EC}
.case-tag.tag-orange{background:#E7D4B0;color:#6B4F38}
#products .prod-card{background:#FBF6EC;border:1px solid #EAD9BE}
#products .prod-card .price{color:#9A6B3F}
#products .prod-card-custom{background:#fff8ef;border:2px dashed #D9A566}
#products .prod-card-custom .img-ph{background:repeating-linear-gradient(45deg,#fff4e6,#fff4e6 12px,#f8e8d0 12px,#f8e8d0 24px);border:2px dashed #D9A566;color:#9A6B3F;font-weight:600}
#products .prod-card-custom .ptag{background:#fff0db;color:#9A6B3F}
.about .feat{background:#FBF6EC;border:1px solid #EAD9BE}

/* features */
.feat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.feat{background:#fff;border-radius:14px;padding:22px;box-shadow:0 4px 14px rgba(0,0,0,.04)}
.feat h4{color:var(--brown);margin-bottom:6px;font-size:16px}
.feat p{font-size:13px;color:var(--muted)}

/* 参数表（用于系列页概览） */
.param-table{width:100%;border-collapse:collapse;font-size:14px;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 14px rgba(0,0,0,.04)}
.param-table th,.param-table td{padding:12px 14px;text-align:left;border-bottom:1px solid #f1ece4}
.param-table th{background:#FBF6EC;color:#6B4F38;font-weight:600;width:120px}
.param-table tr:last-child td,.param-table tr:last-child th{border-bottom:none}
.param-table td{color:var(--ink)}

/* 价格表/参数大图（单页资料图） */
.price-sheet{margin-top:18px;border-radius:14px;overflow:hidden;background:#fff;border:1px solid #EAD9BE;box-shadow:0 4px 14px rgba(0,0,0,.04)}
.price-sheet img{width:100%;display:block;cursor:zoom-in}

/* about / footer */
.about{background:#fff}
.about .container{max-width:920px;text-align:left}
.about .container > h2, .about .container > .sub{text-align:center}
.contact-section{background:#fff}
.contact-section .container{max-width:920px;text-align:left}
.contact-section .container > h2, .contact-section .container > .sub{text-align:center}
#contact{scroll-margin-top:72px}
.about-lead{font-size:16px;line-height:1.95;color:var(--ink);margin:6px 0 30px}
.about-lead b{color:var(--brown)}
.about-qa{margin:0 0 26px}
.about-qa h3{font-size:19px;color:var(--brown);margin:0 0 14px}
.about-qa p{font-size:15px;line-height:1.95;color:var(--ink);margin:0 0 14px}
.about-qa p:last-child{margin-bottom:0}
.about-note{background:#FFF8E8;border:1px dashed var(--orange);color:#8a5a00;padding:16px 20px;border-radius:12px;font-size:14px;line-height:1.85;margin:0 0 36px}
.about-note b{color:var(--brown)}

/* 联系方式 */
.contact-head{text-align:center;margin:0 0 24px}
.contact-head h3{font-size:21px;color:var(--brown);margin:0 0 8px}
.contact-head p{font-size:14px;color:var(--muted);margin:0}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.contact-card{background:#FBF6EC;border:1px solid #EAD9BE;border-radius:14px;padding:22px;display:flex;flex-direction:column}
.contact-card .contact-name{font-size:17px;font-weight:700;color:var(--brown);margin-bottom:10px;padding-bottom:10px;border-bottom:1px dashed #E0CDA8}
.contact-tag{display:inline-block;align-self:flex-start;font-size:12px;color:#fff;background:var(--orange);padding:3px 12px;border-radius:20px;margin-bottom:14px;letter-spacing:2px}
.contact-accounts{list-style:none;margin:0 0 16px;padding:0;flex:1}
.contact-accounts li{display:flex;align-items:center;justify-content:space-between;font-size:14px;padding:8px 0;border-bottom:1px solid #F0E6D2}
.contact-accounts li:last-child{border-bottom:none}
.ca-plat{color:var(--muted);font-size:13px;white-space:nowrap}
.ca-id{color:var(--ink);font-weight:600}
.contact-line{display:flex;align-items:center;gap:10px;font-size:14px;line-height:1.8;margin-top:5px}
.cl-k{flex:0 0 60px;color:#fff;background:var(--brown);font-size:12px;text-align:center;border-radius:6px;padding:2px 8px;box-sizing:border-box}
.cl-v{color:var(--ink);word-break:break-all}
.contact-card a{color:var(--blue-deep);text-decoration:none}
.contact-card a:hover{text-decoration:underline}
.footer{background:var(--brown);color:#fff;padding:42px 20px;text-align:center;font-size:14px}
.footer p{opacity:.92}
.footer .sub2{opacity:1;font-size:16px;font-weight:700;letter-spacing:1px;margin-top:10px;white-space:nowrap}
.footer .copy{opacity:.65;margin-top:14px;font-size:13px}
@media (max-width:420px){
.footer{padding:32px 16px}
.footer .sub2{font-size:14px;letter-spacing:0}
}

/* placeholder note */
.note{background:#FFF8E8;border:1px dashed var(--orange);color:#9a6b00;padding:16px 20px;border-radius:12px;font-size:14px;margin:24px 0;line-height:1.8}
.back-link{display:inline-block;margin-top:20px;color:var(--blue-deep);font-weight:600}

/* product card as link */
a.prod-card{display:block;color:inherit;transition:.25s}
a.prod-card:hover{transform:translateY(-5px);box-shadow:0 14px 30px rgba(0,0,0,.1)}
.prod-card .p-more{display:inline-block;margin-top:12px;color:var(--blue-deep);font-weight:600;font-size:13px}

/* 图片待补占位框（资料未提供时使用） */
.img-ph{display:flex;align-items:center;justify-content:center;text-align:center;color:#9A6B3F;font-size:14px;letter-spacing:1px;background:repeating-linear-gradient(45deg,#f3ece0,#f3ece0 12px,#ece2d0 12px,#ece2d0 24px);border:2px dashed #D9C4A3}
.prod-card .img-ph{width:100%;height:200px}
.case-slider .img-ph{width:100%;height:260px;border-radius:12px}
.image-slider .img-ph{width:100%;height:100%;border-radius:16px;font-size:15px}

/* ===== 产品详情页 ===== */
.detail-hero{background:linear-gradient(135deg,#A0785C,#89C4E1);color:#fff;padding:54px 20px 42px;text-align:center}
.detail-hero-sunroom{background:linear-gradient(135deg,#E8923C,#A0785C)}
.detail-hero .crumb{font-size:13px;opacity:.92;margin-bottom:10px}
.detail-hero .crumb a{opacity:.92}
.detail-hero .crumb a:hover{text-decoration:underline}
.detail-hero h1{font-size:32px;font-weight:800;text-shadow:0 2px 10px rgba(0,0,0,.18)}
.detail-hero .lead{font-size:16px;opacity:.95;max-width:620px;margin:10px auto 0}

.detail-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;padding:48px 20px;max-width:var(--max);margin:0 auto}
.detail-gallery{position:relative;margin-bottom:0}

/* 滑动卡片 */
.image-slider{position:relative;border-radius:16px;overflow:hidden;box-shadow:0 8px 24px rgba(0,0,0,.08)}
.slider-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;cursor:grab}
.slider-track::-webkit-scrollbar{display:none}
.slider-track{scrollbar-width:none;-ms-overflow-style:none}
.slide{flex:0 0 100%;scroll-snap-align:start;height:380px}
.slide img{width:100%;height:100%;object-fit:cover;cursor:zoom-in;display:block}
.slider-dots{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:2}
.slider-dot{width:9px;height:9px;border-radius:50%;border:none;background:rgba(255,255,255,.72);cursor:pointer;transition:.2s}
.slider-dot.active{background:var(--orange);transform:scale(1.25)}

.detail-info{display:flex;flex-direction:column;min-height:380px;height:auto;justify-content:flex-start;position:relative;gap:16px}
.detail-summary{flex:0 0 auto}
.detail-info .ptag{display:inline-block;font-size:12px;background:var(--cream);color:var(--brown);padding:4px 12px 4px 0;border-radius:0 20px 20px 0}
.detail-info h2{font-size:26px;margin:14px 0 6px;color:var(--brown)}
.detail-info .price{color:var(--orange);font-weight:700;font-size:26px;margin:12px 0}
.detail-info .price s{color:#bbb;font-weight:400;font-size:16px;margin-left:10px}
.price .price-sub{font-size:.5em;color:#c8a47c;margin-left:2px;font-weight:400}
.detail-info .desc{color:var(--muted);font-size:15px;margin-bottom:0;line-height:1.6}

.spec{background:#fff;border-radius:14px;padding:6px 20px;box-shadow:0 4px 14px rgba(0,0,0,.04);margin-bottom:22px}
.spec-row{display:flex;padding:12px 0;border-bottom:1px solid #f1ece4;font-size:14px}
.spec-row:last-child{border-bottom:none}
.spec-row .k{width:110px;color:var(--muted);flex:none}
.spec-row .v{color:var(--ink);flex:1}

.detail-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-primary{display:inline-block;background:var(--orange);color:#fff;padding:12px 30px;border-radius:40px;font-weight:600;font-size:15px;box-shadow:0 6px 18px rgba(245,166,35,.4);transition:.2s}
.btn-primary:hover{opacity:.92;transform:translateY(-2px)}
.btn-ghost{display:inline-block;background:#fff;color:var(--blue-deep);border:1px solid var(--blue);padding:12px 30px;border-radius:40px;font-weight:600;font-size:15px;transition:.2s}
.btn-ghost:hover{background:var(--blue);color:#fff}
.hide-mobile{display:none}

/* 图片放大 Lightbox */
.lightbox{position:fixed;inset:0;background:rgba(20,18,15,.92);display:none;align-items:center;justify-content:center;z-index:9999;padding:40px;opacity:0;transition:opacity .25s}
.lightbox.show{display:flex;opacity:1}
.lightbox img{max-width:100%;max-height:100%;object-fit:contain;border-radius:8px;cursor:pointer;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.lightbox-close{position:absolute;top:18px;right:24px;width:44px;height:44px;border:none;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;font-size:28px;line-height:44px;cursor:pointer;transition:.2s}
.lightbox-close:hover{background:rgba(255,255,255,.25)}
.lightbox-arrow{position:absolute;top:50%;transform:translateY(-50%);width:50px;height:50px;border:none;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;font-size:28px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s}
.lightbox-arrow:hover{background:rgba(255,255,255,.25)}
.lightbox-prev{left:18px}
.lightbox-next{right:18px}

.related{padding:24px 20px 64px;max-width:var(--max);margin:0 auto}
.related h2{text-align:center;font-size:24px;color:var(--brown);margin-bottom:28px}

/* ===== 详情页新增区块：核心亮点/详细参数/定制选配/购买须知/产品图集 ===== */
.detail-block{background:#FBF6EC;border:1px solid #EAD9BE;border-radius:14px;padding:22px;margin-bottom:18px;box-shadow:0 4px 14px rgba(0,0,0,.04)}
.detail-block h3{color:#6B4F38;font-size:18px;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.detail-block .ico{font-size:18px}
.detail-block .note{margin-top:12px;font-size:13px;color:var(--muted);line-height:1.8}

/* 关键参数：外尺寸 / 内尺寸（PC 端贴底对齐左侧主图） */
.key-params{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:0;position:absolute;bottom:0;left:0;width:100%}
.key-param{background:#fff;border:1px solid #EAD9BE;border-radius:12px;padding:18px}
.key-param .k{font-size:12px;color:var(--muted);margin-bottom:6px}
.key-param .v{font-size:15px;color:#6B4F38;font-weight:600;line-height:1.5}

/* 场景提示 + 操作按钮：PC 端隐藏，仅移动端显示 */
.scene-tip,.detail-actions{display:none}

/* 场景提示 */
.scene-tip{gap:10px;align-items:flex-start;background:#fff;border:1px solid #EAD9BE;border-radius:12px;padding:16px 18px;margin-bottom:18px;font-size:14px;color:#7C6A55;line-height:1.7}

/* 核心亮点 */
.feature-list{display:flex;flex-direction:column;gap:10px}
.feature-item{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink);line-height:1.7}
.feature-dot{flex:none;width:8px;height:8px;border-radius:50%;background:var(--brown);margin-top:8px}

/* 详细参数（完整 12 行） */
.spec-full .spec-row{display:flex;padding:11px 0;border-bottom:1px solid #ece2cf;font-size:14px}
.spec-full .spec-row:last-child{border-bottom:none}
.spec-full .spec-row .k{width:120px;color:var(--muted);flex:none}
.spec-full .spec-row .v{color:var(--ink);flex:1;line-height:1.6}

/* 定制选配 */
.custom-list{display:flex;flex-direction:column}
.custom-item{display:flex;padding:11px 0;border-bottom:1px dashed #ece2cf;font-size:14px}
.custom-item:last-child{border-bottom:none}
.custom-item .ck{width:130px;color:#6B4F38;font-weight:600;flex:none}
.custom-item .cv{color:var(--ink);flex:1;line-height:1.6}

/* 购买须知 */
.notice-list{display:flex;flex-direction:column;gap:9px}
.notice-item{font-size:13.5px;color:var(--muted);line-height:1.7;padding-left:14px;position:relative}
.notice-item::before{content:"·";position:absolute;left:2px;color:var(--brown)}
.notice-item.hl{color:#9A6B3F;font-weight:600}

/* 产品图集 */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
.gallery-grid img{width:100%;height:210px;object-fit:cover;border-radius:10px;cursor:pointer;transition:.2s}
.gallery-grid img:hover{opacity:.9}

@media(max-width:760px){
  .series-grid{grid-template-columns:1fr}
  .nav-inner{flex-direction:column;align-items:stretch;gap:8px;padding:16px 18px 14px}
  .nav-links{display:flex;gap:8px 14px;font-size:13px;flex-wrap:wrap;justify-content:flex-start;overflow:visible;white-space:nowrap}
  .logo{font-size:16px}
  .logo img{height:16px}
  .logo-cn{font-size:16px}
  .nav-links a{padding:4px 1px}
  /* 移动端导航简写：宾智阳光房/宾智露营房/宠栖家宠物舱 -> 阳光房/露营房/宠物舱（PC端不变） */
  .nav-links a:nth-child(2){font-size:0}
  .nav-links a:nth-child(2)::before{content:"阳光房";font-size:13px}
  .nav-links a:nth-child(3){font-size:0}
  .nav-links a:nth-child(3)::before{content:"露营房";font-size:13px}
  .nav-links a:nth-child(4){font-size:0}
  .nav-links a:nth-child(4)::before{content:"宠物舱";font-size:13px}
  /* hero · 移动端 2:1 */
  .hero{position:relative;height:0;padding-bottom:50%;text-align:center;overflow:hidden}
  .hero-inner{position:absolute;top:50%;left:0;transform:translateY(-50%);width:100%;padding:0 22px}
  .hero h1{font-size:18px;margin:0 0 6px}
  .hero p{font-size:12px;line-height:1.55;max-width:520px;margin:0 auto}
  .hero .btn{margin-top:14px;padding:7px 18px;font-size:13px;border-radius:20px;align-self:center}
  .section{padding:48px 16px}
  .section h2{font-size:22px;margin-bottom:8px}
  .section .sub{font-size:14px;margin-bottom:28px}
  .detail-wrap{grid-template-columns:1fr;gap:24px;padding:28px 16px}
  .detail-gallery{position:static;margin-bottom:0}
  .slide{height:260px}
  .slider-dots{bottom:10px}
  .slider-dot{width:7px;height:7px}
  .detail-hero h1{font-size:26px}
  .detail-info{display:block;height:auto;position:static}
  .key-params{margin-top:8px;margin-bottom:18px;position:static;width:auto}
  .scene-tip,.detail-actions{display:flex}
  .case-grid{grid-template-columns:1fr}
  .case-card{flex-direction:column;gap:14px}
  .case-imgs{flex:none}
  .case-cover{height:220px}
  /* 移动端：产品卡 / 核心优势卡 / 案例卡 / 首页系列卡 同宽（两侧留 14px 边距） */
  .case-section, #products, .about, .contact-section, #series{padding-left:14px;padding-right:14px}
  .case-section > .container, #products > .container, .about > .container, .contact-section > .container, #series > .container{padding-left:0;padding-right:0}
  .case-card{border-radius:14px;padding:14px;box-shadow:0 4px 16px rgba(0,0,0,.05);border:1px solid #EAD9BE;background:#FBF6EC}
  .case-body{padding:0}
  .case-thumbs{padding:0}
  .case-cover{height:240px}
  .detail-block{padding:18px}
  .key-params{grid-template-columns:1fr}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-grid img{height:150px}
  .lightbox{padding:10px}
  .lightbox-close{top:10px;right:12px;width:38px;height:38px;font-size:22px;line-height:38px}
  .lightbox-arrow{width:38px;height:38px;font-size:22px}
  .lightbox-prev{left:8px}
  .lightbox-next{right:8px}
}
.beian{color:rgba(255,255,255,.65);font-size:.85em}
.beian:hover{text-decoration:underline}