/* ============================================================
   泉一净水官网 · 真实站点样式
   设计语言：泉一蓝 #009DFE 主色 + 水青 #00C2B8 辅助 + 深墨蓝 #13243A
   桌面 / 平板(≤860) / 手机(≤520) 三档响应式（移动适配为硬性验收）
   图片统一走「媒体库槽位」，缺图有占位，绝不破图
   ============================================================ */

/* ---------- 设计变量 ---------- */
:root{
  --c-primary:#009DFE;
  --c-primary-deep:#0077C8;
  --c-primary-soft:#E8F5FF;
  --c-accent:#00C2B8;
  --c-accent-soft:#E2F8F6;
  --c-ink:#13243A;
  --c-text:#3A4D5C;
  --c-muted:#7E8FA0;
  --c-bg:#FFFFFF;
  --c-soft:#F3F8FC;
  --c-line:#E4EDF4;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 8px 30px rgba(16,52,90,.08);
  --shadow-sm:0 2px 10px rgba(16,52,90,.06);
  --ff:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,"Segoe UI",sans-serif;
  --maxw:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--ff);color:var(--c-text);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}

/* ---------- 布局通用 ---------- */
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:64px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--c-primary);font-weight:700;font-size:13px;letter-spacing:1px;margin-bottom:12px}
.eyebrow:before{content:"";width:26px;height:3px;background:var(--c-primary);border-radius:3px}
h2.sec-t{font-size:30px;color:var(--c-ink);font-weight:800;letter-spacing:.5px;line-height:1.3}
.sec-sub{color:var(--c-muted);margin-top:10px;font-size:15px;max-width:640px}
a{color:var(--c-primary);text-decoration:none}

/* ---------- 顶部导航 ---------- */
.nav{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--c-line)}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:68px;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--c-ink);font-size:19px}
.brand .logo{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--c-primary),#36b6ff);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:18px;flex-shrink:0}
.brand small{display:block;font-size:10px;color:var(--c-muted);font-weight:600;letter-spacing:.5px}
.brand .logo-img{height:38px;width:auto;max-width:220px;object-fit:contain;display:block;flex-shrink:0}
.footer .brand .logo-img{filter:brightness(0) invert(1);opacity:.96}
.nav-links{display:flex;gap:26px;list-style:none;align-items:center}
.nav-links a{color:var(--c-text);text-decoration:none;font-size:15px;font-weight:500;transition:.15s;padding:6px 0}
.nav-links a:hover,.nav-links a.on{color:var(--c-primary)}
.nav-cta{display:flex;align-items:center;gap:14px}
.hotline{display:flex;align-items:center;gap:7px;color:var(--c-primary-deep);font-weight:700;font-size:15px;white-space:nowrap}
.hotline .ph-ico{width:18px;height:18px;border-radius:50%;background:var(--c-primary-soft);display:inline-flex;align-items:center;justify-content:center;font-size:11px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--ff);font-weight:700;font-size:15px;border-radius:11px;padding:12px 22px;cursor:pointer;border:1px solid transparent;transition:.18s;text-decoration:none}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px rgba(0,157,254,.32)}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft)}
.btn-light{background:#fff;color:var(--c-primary-deep)}
.btn-lg{padding:15px 30px;font-size:16px}
.nav-toggle{display:none}
.nav-burger{display:none;font-size:24px;cursor:pointer;color:var(--c-ink)}

/* ---------- Hero（满宽大图） ---------- */
.hero{position:relative;background-size:cover;background-position:center;min-height:540px;display:flex;align-items:center}
.hero:before{content:"";position:absolute;inset:0;background:linear-gradient(95deg,rgba(13,28,46,.9) 0%,rgba(13,28,46,.62) 48%,rgba(13,28,46,.2) 100%)}
.hero .container{position:relative;z-index:1;padding:70px 24px}
.hero h1{font-size:46px;line-height:1.22;color:#fff;font-weight:800;letter-spacing:.5px;text-shadow:0 2px 18px rgba(0,0,0,.25)}
.hero h1 .hl{color:#5ec8ff}
.hero p{margin-top:18px;font-size:18px;color:#dce9f5;max-width:560px}
.hero .cta-row{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.hero .trust{margin-top:34px;display:flex;gap:34px;flex-wrap:wrap;color:#bcd6ee;font-size:13px;align-items:center}
.hero .trust div b{color:#fff;font-size:24px;font-weight:800;display:block;line-height:1.1}

/* ---------- 价值条 ---------- */
.values{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:8px}
.value-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:24px 20px;box-shadow:var(--shadow-sm);transition:.18s}
.value-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--c-primary)}
.value-card .ico{width:46px;height:46px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px}
.value-card h4{color:var(--c-ink);font-size:17px;font-weight:700}
.value-card p{margin-top:8px;font-size:13.5px;color:var(--c-muted)}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:30px}
.scene-card{border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.18s;box-shadow:var(--shadow-sm)}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.scene-card .body{padding:20px 22px 24px}
.scene-card .badge{display:inline-block;background:var(--c-accent-soft);color:#03968e;font-size:12px;font-weight:700;padding:3px 10px;border-radius:20px;margin-bottom:10px}
.scene-card h4{color:var(--c-ink);font-size:19px;font-weight:700}
.scene-card p{margin-top:8px;font-size:14px;color:var(--c-muted)}
.scene-card .more{margin-top:14px;color:var(--c-primary);font-weight:700;font-size:14px;display:inline-flex;align-items:center;gap:5px}

/* ---------- 品牌授权 ---------- */
.brand-band{background:var(--c-ink);color:#fff;border-radius:18px;padding:38px 34px;margin-top:10px}
.brand-band .bb-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;margin-bottom:22px}
.brand-band h3{font-size:22px;font-weight:800}
.brand-band .pill{background:rgba(255,255,255,.12);color:#9fd8ff;font-size:13px;padding:6px 14px;border-radius:30px;font-weight:600}
.logo-wall{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.logo-wall .lg{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:12px;height:64px;display:flex;align-items:center;justify-content:center;font-weight:700;color:#cfe2f2;font-size:14px;letter-spacing:.5px}

/* ---------- 案例卡（脱敏行业维度） ---------- */
.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:28px}
.case-card{border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;background:#fff}
.case-card>a{display:block;height:100%;color:inherit;text-decoration:none}.case-card>a>img{display:block;width:100%;height:180px;object-fit:cover}.case-card .more{color:var(--c-primary);font-size:13px;font-weight:700}
.case-card .body{padding:14px 16px}
.case-card .ind{font-size:12px;color:var(--c-primary);font-weight:700}
.case-card h5{font-size:15px;color:var(--c-ink);margin-top:4px;font-weight:700}
.case-card .meta{font-size:12px;color:var(--c-muted);margin-top:6px}

/* ---------- 关于 snippet ---------- */
.about-snippet{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.about-snippet > .img-ph{min-height:300px;border-radius:16px}
.about-snippet p{margin-top:14px;color:var(--c-text);font-size:15px}

/* ---------- CTA 转化区 ---------- */
.cta{background:linear-gradient(120deg,var(--c-primary),#2bb0ff);color:#fff;border-radius:18px;padding:44px 40px;display:grid;grid-template-columns:1.2fr .8fr;gap:30px;align-items:center;margin-top:10px}
.cta h3{font-size:26px;font-weight:800}
.cta p{margin-top:10px;color:#e6f5ff;font-size:15px}
.cta .mini-form{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);border-radius:14px;padding:20px}
.cta .mini-form input{width:100%;padding:12px 14px;border-radius:9px;border:none;margin-bottom:10px;font-family:var(--ff);font-size:14px}
.cta .mini-form .btn-light{width:100%}

/* ---------- 页脚 ---------- */
.footer{background:var(--c-ink);color:#bcccd9;padding:46px 0 26px;margin-top:10px}
.footer .container{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px}
.footer h6{color:#fff;font-size:15px;margin-bottom:14px;font-weight:700}
.footer a{color:#bcccd9;text-decoration:none;font-size:13.5px;display:block;margin-bottom:9px}
.footer a:hover{color:var(--c-primary)}
.footer .f-brand .brand{color:#fff;margin-bottom:12px}
.footer .f-brand p{font-size:13px;color:#8aa0b3;max-width:280px}
.footer .contact-line{display:flex;gap:8px;align-items:flex-start;font-size:13.5px;margin-bottom:10px;color:#cfe0ee}
.footer .contact-line span{color:var(--c-primary);font-weight:700;min-width:48px}
.footer .bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px;color:#7e94a8}

/* ---------- 面包屑 + 内页页头 ---------- */
.crumb{background:var(--c-soft);border-bottom:1px solid var(--c-line);font-size:13px;color:var(--c-muted);padding:12px 0}
.crumb .container a{color:var(--c-muted);text-decoration:none}
.crumb .container a:hover{color:var(--c-primary)}
.page-hero{background:linear-gradient(120deg,var(--c-ink),#1d3f63);color:#fff;padding:50px 0;background-size:cover;background-position:center}
.page-hero h1{font-size:34px;font-weight:800}
.page-hero p{margin-top:12px;color:#bcd6ee;max-width:640px;font-size:15px}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:28px;border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden}
.flow .step{padding:26px 24px;border-right:1px solid var(--c-line);position:relative}
.flow .step:last-child{border-right:none}
.flow .num{width:40px;height:40px;border-radius:50%;background:var(--c-primary);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.flow h4{color:var(--c-ink);font-size:18px;font-weight:700}
.flow p{margin-top:8px;font-size:14px;color:var(--c-muted)}

/* ---------- 服务行业（脱敏聚合，不列客户实名） ---------- */
.client-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}
.client-list .item{background:var(--c-soft);border:1px solid var(--c-line);border-radius:12px;padding:16px 18px}
.client-list .item .cat{font-size:12px;color:var(--c-primary);font-weight:700}
.client-list .item .nm{font-size:14px;color:var(--c-ink);font-weight:600;margin-top:6px;line-height:1.5}

/* ---------- 联系页 ---------- */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
.c-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.c-card h3{color:var(--c-ink);font-size:20px;font-weight:800;margin-bottom:18px}
.c-line{display:flex;gap:12px;align-items:flex-start;padding:13px 0;border-bottom:1px dashed var(--c-line)}
.c-line:last-child{border-bottom:none}
.c-line .ci{width:38px;height:38px;border-radius:10px;background:var(--c-primary-soft);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0}
.c-line .ct{font-size:12px;color:var(--c-muted)}
.c-line .cv{font-size:16px;color:var(--c-ink);font-weight:700}
.map-slot{min-height:240px;border-radius:14px;margin-top:6px}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:13px;color:var(--c-ink);font-weight:600;margin-bottom:7px}
.form-field label .req{color:#e5484d}
.form-field input,.form-field textarea,.form-field select{width:100%;padding:12px 14px;border:1px solid var(--c-line);border-radius:10px;font-family:var(--ff);font-size:14px;color:var(--c-text);background:#fff;transition:.15s}
.form-field input:focus,.form-field textarea:focus,.form-field select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-soft)}

/* ---------- 图片槽位占位（缺图时） ---------- */
.img-ph{position:relative;border-radius:var(--radius-sm);overflow:hidden;background:#eef3f7;min-height:150px}
.img-ph img{width:100%;height:100%;min-height:inherit;object-fit:cover;display:block}
.slot-ph{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:inherit;height:100%;padding:14px;text-align:center;color:#9aa7b5;font-size:12px;line-height:1.7;background:repeating-linear-gradient(45deg,#f1f8ff,#f1f8ff 12px,#e8f3ff 12px,#e8f3ff 24px)}
.slot-ph i{font-style:normal;opacity:.7}

/* ============================================================
   产品中心 / 解决方案（.case-page 体系）
   ============================================================ */
.case-page{font-family:var(--ff);color:var(--c-text);background:var(--c-bg)}
.case-page .c-wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.case-page .c-hero{position:relative;color:#fff;padding:92px 20px 70px;background:var(--c-ink);overflow:hidden}
.case-page .c-hero::before{content:"";position:absolute;inset:0;background:var(--hero-img,url('/static/hero-fallback.svg')) center/cover no-repeat}
.case-page .c-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(19,36,58,.92),rgba(0,119,200,.55) 70%,rgba(0,194,184,.35))}
.case-page .c-hero-in{position:relative;z-index:2;max-width:1100px;margin:0 auto}
.case-page .c-badge{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.32);padding:5px 14px;border-radius:20px;font-size:13px;margin-bottom:16px}
.case-page .c-hero h1{font-size:clamp(26px,5vw,44px);font-weight:800;line-height:1.25;margin-bottom:14px}
.case-page .c-hero p{font-size:clamp(14px,2vw,18px);opacity:.92;max-width:640px}
.case-page .c-sec{padding:60px 0}
.case-page .c-sec.alt{background:var(--c-soft)}
.case-page .c-sec h2{font-size:clamp(21px,3vw,28px);font-weight:800;margin-bottom:8px;color:var(--c-ink)}
.case-page .c-sec .lead{color:var(--c-muted);margin-bottom:28px;font-size:15px}
.case-page .c-sec-head{display:flex;align-items:baseline;gap:12px;margin-bottom:6px}
.case-page .c-sec-head .idx{font-size:13px;font-weight:800;color:var(--c-primary);background:var(--c-primary-soft);padding:3px 12px;border-radius:20px}

/* 产品中心 */
.prod-page .p-brands{display:flex;flex-wrap:wrap;gap:12px;margin:8px 0 26px}
.prod-page .p-brand{background:#fff;border:1px solid var(--c-line);border-radius:22px;padding:8px 18px;font-size:14px;font-weight:600;color:var(--c-ink)}
.prod-page .p-brand.lead{background:linear-gradient(135deg,var(--c-primary),var(--c-accent));color:#fff;border:none}
.prod-page .p-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.prod-page .c-wrap{width:min(1040px,calc(100% - 48px));max-width:1040px;padding-left:0;padding-right:0;margin-left:auto;margin-right:auto}
.prod-page .p-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.prod-page .p-card .body{padding:16px 18px;flex:1;display:flex;flex-direction:column}
.prod-page .p-card .brand{font-size:12px;color:var(--c-primary);background:var(--c-primary-soft);padding:3px 10px;border-radius:14px;align-self:flex-start}
.prod-page .p-card .t{font-size:16px;font-weight:800;color:var(--c-ink);margin:10px 0 4px}
.prod-page .p-card .model{font-size:13px;color:var(--c-muted);font-family:monospace}
.prod-page .p-card .meta{font-size:13px;color:var(--c-text);margin-top:8px}
.product-spec-table{width:100%;margin:12px 0;border-collapse:collapse;font-size:12px;text-align:left}.product-spec-table th,.product-spec-table td{padding:5px 6px;border-bottom:1px solid #e8eef3;vertical-align:top}.product-spec-table th{width:31%;font-weight:600;color:var(--c-muted)}.product-spec-table td{color:var(--c-text)}.case-data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:24px}.case-data{padding:16px;background:#f7fbfe;border:1px solid #e5f0f7;border-radius:10px}.case-data h3{font-size:15px;margin:0 0 10px}.case-data dl{margin:0}.case-data dl>div{display:flex;gap:8px;margin:5px 0;font-size:12px}.case-data dt{color:var(--c-muted);min-width:34px}.case-data dd{margin:0}.faq-list{max-width:900px;margin:20px auto}.faq-item{padding:14px 0;border-bottom:1px solid #e5edf3}.faq-item summary{cursor:pointer;font-weight:600}.faq-item p{margin:10px 0 0;color:var(--c-muted);line-height:1.8}.more{display:inline-block;margin-top:8px}@media(max-width:800px){.case-data-grid{grid-template-columns:1fr 1fr}}@media(max-width:520px){.case-data-grid{grid-template-columns:1fr}}
.prod-page .p-card .modes{margin-top:auto;padding-top:12px;display:flex;gap:6px;flex-wrap:wrap}
.prod-page .p-card .mode{font-size:11px;border:1px solid var(--c-line);border-radius:12px;padding:3px 9px;color:var(--c-muted)}
.prod-page .p-card .img-ph{aspect-ratio:4/3;min-height:0;border-radius:0}
.prod-page .p-modes{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:10px}
.prod-page .p-mode{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);padding:22px}
.prod-page .p-mode .mi{width:44px;height:44px;border-radius:12px;background:var(--c-accent-soft);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:12px}
.prod-page .p-mode .mt{font-size:17px;font-weight:800;color:var(--c-ink)}
.prod-page .p-mode .md{font-size:13px;color:var(--c-muted);margin-top:6px;line-height:1.55}

/* 解决方案 */
.solu-page .s-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.solu-page .s-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden}
.solu-page .s-card .img-ph{aspect-ratio:16/9;min-height:0;border-radius:0}
.solu-page .s-card .body{padding:20px 22px}
.solu-page .s-card .st{font-size:18px;font-weight:800;color:var(--c-ink)}
.solu-page .s-card .sp{font-size:13px;color:var(--c-primary);margin:6px 0 10px}
.solu-page .s-card .row{font-size:13px;color:var(--c-text);margin:6px 0;line-height:1.5}
.solu-page .s-card .row b{color:var(--c-ink)}
.solu-page .s-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:8px}
.solu-page .s-step{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-sm);padding:16px 14px;text-align:center}
.solu-page .s-step .sn{width:34px;height:34px;border-radius:50%;background:var(--c-primary);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 10px}
.solu-page .s-step .sl{font-size:13px;font-weight:700;color:var(--c-ink)}
.solu-page .s-step .sd{font-size:12px;color:var(--c-muted);margin-top:4px}

/* 产品 / 解决方案 / 资讯 共用的引导带 */
.case-page .c-band{position:relative;color:#fff;border-radius:var(--radius);overflow:hidden;padding:38px 30px;margin-top:10px}
.case-page .c-band::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,119,200,.9),rgba(0,194,184,.8))}
.case-page .c-band-in{position:relative;z-index:2}
.case-page .c-band h3{font-size:22px;margin-bottom:8px}
.case-page .c-band p{opacity:.95;max-width:560px;font-size:15px}

/* ============================================================
   响应式（移动适配 · 硬性验收）
   ============================================================ */
@media (max-width:860px){
  .hero{min-height:420px}
  .hero .container{padding:50px 24px}
  .hero h1{font-size:32px}
  .hero .cta-row,.hero .trust{flex-direction:row;flex-wrap:wrap}
  .values,.scene-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .about-snippet,.cta,.contact-wrap{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .flow .step{border-right:none;border-bottom:1px solid var(--c-line)}
  .client-list{grid-template-columns:repeat(2,1fr)}
  .footer .container{grid-template-columns:1fr 1fr}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--c-line);padding:8px 24px 16px;box-shadow:var(--shadow)}
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:12px 0;border-bottom:1px solid var(--c-line)}
  .nav-burger{display:block}
  .nav-toggle:checked ~ .container .nav-links{display:flex}
  .prod-page .p-grid,.prod-page .p-modes,.solu-page .s-grid{grid-template-columns:repeat(2,1fr)}
  .solu-page .s-steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .hero{min-height:380px}
  .hero h1{font-size:28px}
  .hero .container{padding:44px 22px}
  .page-hero{padding:56px 0 34px}
  .page-hero h1{font-size:30px}
  .case-page .c-hero-in{padding:0 20px}
  .c-band,.c-steps{padding:30px 0}
  .c-steps .s-steps{grid-template-columns:1fr}
  .nav-cta .btn{padding:9px 14px;font-size:13px}
  .nav-cta .hotline{font-size:13px}
  .footer .f-brand p{max-width:100%}
  .prod-page .p-hero,.solu-page .s-hero{padding:54px 0 34px}
}
@media (max-width:520px){
  .hero h1{font-size:26px}
  .values,.scene-grid,.case-grid,.client-list,.logo-wall{grid-template-columns:1fr}
  .footer .container{grid-template-columns:1fr}
  .hotline{display:none}
  .prod-page .p-grid,.prod-page .p-modes,.solu-page .s-grid,.solu-page .s-steps{grid-template-columns:1fr}
  .cta .mini-form{margin-top:18px}
}

/* ============================================================
   后台样式（保留）
   ============================================================ */
.admin-menu{list-style:none;padding:0;margin:0}
.admin-menu li{margin:8px 0}
.admin-menu a{display:inline-block;background:var(--c-soft);padding:10px 14px;border-radius:8px;border-left:4px solid var(--c-primary);color:var(--c-ink);font-weight:600}
.admin-menu a:hover{background:var(--c-primary-soft)}
.login-box{background:#fff;padding:30px 34px;border-radius:12px;box-shadow:0 6px 24px rgba(0,0,0,.12);width:320px;margin:8vh auto}
.login-box h2{margin-top:0;color:var(--c-primary);}
.login-box .form input{width:100%}
.login-box .form button{width:100%}
.form{display:flex;flex-direction:column;gap:12px;max-width:520px}
.form label{display:flex;flex-direction:column;font-size:14px;gap:4px}
.form input,.form textarea{padding:9px;border:1px solid var(--c-line);border-radius:6px;font-size:14px}
.form button{background:var(--c-primary);color:#fff;border:0;padding:11px 18px;border-radius:8px;font-weight:700;cursor:pointer;width:max-content}
.ok{background:#e3f2fd;color:#1565c0;padding:8px 12px;border-radius:6px;margin-bottom:10px}
.err{background:#ffebee;color:#c62828;padding:8px 12px;border-radius:6px;margin-bottom:10px}
.mtable{width:100%;border-collapse:collapse;margin:10px 0}
.mtable th,.mtable td{border:1px solid var(--c-line);padding:8px;text-align:left;font-size:13px}
.mtable th{background:var(--c-soft)}

/* 后台文章表单 */
.a-form{max-width:920px}
.a-form .ff{margin-bottom:14px}
.a-form label{display:block;font-size:13px;font-weight:600;color:var(--c-ink);margin-bottom:6px}
.a-form input,.a-form select,.a-form textarea{width:100%;padding:10px 12px;border:1px solid var(--c-line);border-radius:8px;font-family:var(--ff);font-size:14px}
.a-form .row{display:flex;gap:14px;flex-wrap:wrap}
.a-form .row .ff{flex:1;min-width:160px}
.tox-tinymce{border-radius:8px !important}

/* ============================================================
   资讯中心（前台 info.html / article.html 真实页，保留既有体系）
   ============================================================ */
.lead{color:#555;font-size:15px;margin:6px 0 18px}
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 20px}
.tab{display:inline-block;padding:8px 16px;border-radius:20px;background:var(--c-soft);color:#333;font-size:14px;border:1px solid var(--c-line);text-decoration:none}
.tab.on{background:var(--c-primary);color:#fff;border-color:var(--c-primary);font-weight:700}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px}
.card{display:block;border:1px solid var(--c-line);border-radius:12px;overflow:hidden;background:#fff;color:inherit;transition:.15s;text-decoration:none}
.card:hover{box-shadow:0 6px 20px rgba(0,0,0,.10);transform:translateY(-2px)}
.card img{width:100%;height:150px;object-fit:cover;display:block;background:#eef3f7}
.card-body{padding:14px 16px}
.card-body .cat{display:inline-block;font-size:12px;color:var(--c-primary);background:var(--c-primary-soft);padding:2px 8px;border-radius:10px;margin-bottom:6px}
.card-body h3{margin:4px 0 6px;font-size:17px;color:var(--c-ink)}
.card-body p{margin:0;color:#666;font-size:13px}
.card-body small{color:#999}
.crumb-nav{font-size:13px;color:#888;margin-bottom:8px}
.crumb-nav a{color:var(--c-muted)}
.article .meta{color:#999;font-size:13px}
.article .cover{width:100%;max-height:360px;object-fit:cover;border-radius:10px;margin:12px 0}
.rich{font-size:15px;line-height:1.9}
.rich img{max-width:100%;height:auto;border-radius:8px;margin:8px 0}
.rich h2{font-size:20px;margin:22px 0 8px;color:var(--c-primary)}
.faq-item{border:1px solid var(--c-line);border-radius:12px;padding:16px 18px;margin-bottom:12px;background:#fff}
.faq-item h3{font-size:16px;color:var(--c-ink);margin:0 0 8px}
.faq-item p{margin:0;color:var(--c-text);font-size:14px;line-height:1.7}
.info-center{width:min(1080px,calc(100% - 48px));max-width:1080px;margin-left:auto;margin-right:auto}
.info-category{padding:34px 0;border-bottom:1px solid var(--c-line)}
.info-category:last-child{border-bottom:0}
.info-category-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:20px}
.info-category-head h2{font-size:28px;margin:5px 0 4px;color:var(--c-ink)}
.info-category-head p{margin:0;color:var(--c-muted);font-size:14px}
.article-list{display:flex;flex-direction:column;gap:16px}
.article-row{display:grid;grid-template-columns:280px minmax(0,1fr);min-height:176px;border:1px solid var(--c-line);border-radius:8px;overflow:hidden;background:#fff;color:inherit;transition:.18s}
.article-row:hover{border-color:#a9cee9;box-shadow:0 8px 24px rgba(25,67,98,.1);transform:translateY(-1px)}
.article-thumb{aspect-ratio:16/10;background:#eaf4fa;overflow:hidden;display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-weight:700}
.article-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.article-row-body{padding:22px 26px;min-width:0}
.article-row-body .cat{font-size:12px;color:var(--c-primary);font-weight:700}
.article-row-body h3{font-size:20px;margin:7px 0 9px;color:var(--c-ink)}
.article-row-body p{margin:0 0 13px;color:#5e6872;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-row-body small{color:#8b959f;display:block;margin-bottom:14px}
.article-detail-btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 14px;border:1px solid var(--c-primary);border-radius:6px;color:var(--c-primary);font-size:13px;font-weight:700;text-decoration:none;transition:.18s}
.article-detail-btn:hover{background:var(--c-primary);color:#fff}
.legacy-faq-list{display:none}
.faq-content{max-width:1080px;margin-left:auto;margin-right:auto}
.faq-head{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:20px}
.faq-head .sec-t{margin:0}
.faq-article-list{display:flex;flex-direction:column;gap:16px}
.faq-article-row{min-height:150px}
.faq-article-row .article-row-body{padding:18px 24px}
.faq-article-row .article-row-body h3{font-size:18px}
.article{width:min(820px,calc(100% - 48px));max-width:820px;margin-left:auto;margin-right:auto}
.solution-detail{width:min(820px,calc(100% - 48px));max-width:820px;margin-left:auto;margin-right:auto}
.solution-detail .cover{display:block;width:100%;max-height:420px;object-fit:cover;border-radius:8px;margin:18px auto 24px}
.solution-detail .solution-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--c-line);border:1px solid var(--c-line);margin:24px 0}
.solution-detail .solution-facts>div{display:flex;flex-direction:column;gap:5px;padding:14px 16px;background:#f7fafc}
.solution-detail .solution-facts b{font-size:12px;color:var(--c-muted)}
.solution-detail .solution-facts span{font-size:15px;color:var(--c-ink);line-height:1.5}
.solution-detail .rich,.solution-detail .article-video{width:100%;max-width:100%;margin-left:auto;margin-right:auto}
.article h1{font-size:34px;line-height:1.35;margin:14px 0 10px}
.article-lead{font-size:17px;line-height:1.8;padding:18px 20px;background:#f3f8fb;border-left:4px solid var(--c-primary);margin:22px 0;color:#46525e}
.article-video,.rich video{display:block;width:100%;height:auto;margin:24px 0;background:#000}
.rich{font-size:17px;line-height:1.95;color:#303943}
.rich h2{font-size:25px;margin:34px 0 12px;color:var(--c-ink)}
.rich h3{font-size:20px;margin:28px 0 10px}
.rich p{margin:0 0 20px}
.rich blockquote{margin:24px 0;padding:14px 18px;border-left:4px solid var(--c-primary);background:#f6f8fa;color:#56616c}
.rich table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:24px 0}
.rich th,.rich td{border:1px solid var(--c-line);padding:10px 12px;min-width:100px;text-align:left}
.rich th{background:#f2f6f9}
@media(max-width:700px){.info-center,.article,.solution-detail,.prod-page .c-wrap{width:calc(100% - 32px)}.article-row{grid-template-columns:1fr}.article-thumb{aspect-ratio:16/9}.article-row-body{padding:18px}.info-category-head{align-items:flex-start}.article h1{font-size:28px}.solution-detail .solution-facts{grid-template-columns:1fr}}

/* Product centre database prototype. Kept separate from the current /products page. */
.qp-page,.qpd-page{background:#f3f8fc;color:#3a4d5c}.qp-wrap,.qpd-wrap{width:min(1180px,calc(100% - 40px));margin:0 auto}.qp-hero{padding:46px 0;background:linear-gradient(112deg,#063a67,#0077c8 58%,#00afc4);color:#fff}.qp-crumb,.qpd-crumb{font-size:13px;opacity:.76;margin-bottom:24px}.qp-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:end}.qp-kicker{font-size:13px;opacity:.78}.qp-hero h1{font-size:38px;margin:10px 0 12px;letter-spacing:0}.qp-hero p{line-height:1.8;margin:0;opacity:.88}.qp-search{background:#fff;padding:18px;color:#13243a;border-radius:8px}.qp-search label{display:block;font-size:13px;margin-bottom:8px}.qp-search>div{display:flex}.qp-search input{min-width:0;flex:1;border:1px solid #c9dfee;border-radius:6px 0 0 6px;padding:12px}.qp-search button{border:0;background:#0077c8;color:#fff;padding:0 20px;border-radius:0 6px 6px 0}.qp-search p{margin-top:10px;color:#7e8fa0;font-size:12px}.qp-search p a{margin-right:12px;color:#0077c8}.qp-main{padding:32px 0 64px}.qp-category{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.qp-category a{min-height:76px;padding:14px;background:#fff;border:1px solid #e4edf4;border-radius:7px;color:#3a4d5c}.qp-category a:first-child{display:grid;place-items:center}.qp-category a.active{background:#e8f5ff;border-color:#009dfe;color:#0077c8}.qp-category b,.qp-category span{display:block}.qp-category span{margin-top:5px;font-size:11px;line-height:1.5;color:#7e8fa0}.qp-result{display:flex;align-items:center;justify-content:space-between;margin:34px 0 15px}.qp-result h2{margin:0;font-size:24px;color:#13243a}.qp-result span{color:#7e8fa0}.qp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.qp-card{display:flex;flex-direction:column;overflow:hidden;background:#fff;border:1px solid #e4edf4;border-radius:8px}.qp-image{height:230px;position:relative;display:grid;place-items:center;background:linear-gradient(145deg,#e8f5ff,#fff)}.qp-image img{width:100%;height:100%;object-fit:contain;padding:20px}.qp-image>span{position:absolute;left:12px;top:12px;padding:5px 8px;background:#e2f8f6;color:#007b7a;font-size:11px;border-radius:4px}.qp-body{padding:18px;display:flex;flex-direction:column;flex:1}.qp-body small{color:#7e8fa0}.qp-body h3{font-size:18px;line-height:1.5;margin:6px 0;color:#13243a}.qp-model{color:#0077c8;font-size:13px}.qp-body>p{font-size:13px;line-height:1.7;color:#52697d;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.qp-meta{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0 14px}.qp-meta span{padding:5px 7px;background:#f3f8fc;font-size:11px}.qp-detail{display:block;margin-top:auto;padding:10px;text-align:center;background:#0077c8;color:#fff;border-radius:5px}.qp-empty{grid-column:1/-1;padding:60px;text-align:center;background:#fff}.qpd-wrap{padding:28px 0 72px}.qpd-crumb a{color:#0077c8}.qpd-top{display:grid;grid-template-columns:minmax(0,48%) 1fr;gap:44px;padding:28px;background:#fff;border:1px solid #e4edf4}.qpd-main-image{min-height:410px;display:grid;place-items:center;background:#f3f8fc}.qpd-main-image img{width:100%;height:410px;object-fit:contain;padding:28px}.qpd-thumbs{display:flex;gap:8px;margin-top:10px;overflow:auto}.qpd-thumbs button{width:74px;height:64px;flex:0 0 auto;border:1px solid #d6e7f2;background:#fff;border-radius:4px}.qpd-thumbs img{width:100%;height:100%;object-fit:contain}.qpd-summary>span{font-size:13px;color:#00a99d}.qpd-summary h1{font-size:30px;line-height:1.35;margin:10px 0;color:#13243a;letter-spacing:0}.qpd-model{color:#0077c8;font-weight:600}.qpd-summary>p{line-height:1.85}.qpd-summary dl{border-top:1px solid #e4edf4}.qpd-summary dl>div{display:grid;grid-template-columns:88px 1fr;padding:11px 0;border-bottom:1px solid #e4edf4}.qpd-summary dt{color:#7e8fa0}.qpd-summary dd{margin:0}.qpd-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.qpd-anchor{display:flex;justify-content:center;gap:32px;margin:24px 0;background:#13243a;padding:16px}.qpd-anchor a{color:#fff}.qpd-content{max-width:900px;margin:0 auto;padding:34px 0;border-bottom:1px solid #dce8f1}.qpd-content h2{font-size:25px;color:#13243a}.qpd-content .rich{font-size:16px;line-height:1.9}.qpd-content .rich img,.qpd-rich-images img{display:block;max-width:100%;height:auto;margin:22px auto}.qpd-content figcaption{text-align:center;font-size:12px;color:#7e8fa0}.qpd-table{overflow:auto}.qpd-table table{width:100%;border-collapse:collapse;background:#fff}.qpd-table th,.qpd-table td{padding:13px;border-bottom:1px solid #e4edf4;text-align:left}.qpd-table th{width:20%;background:#f3f8fc;color:#52697d}.qpd-table td:last-child{color:#7e8fa0;font-size:12px}.qpd-note{font-size:12px;color:#7e8fa0}.qpd-video video{display:block;width:100%;max-height:510px;background:#13243a}.qpd-media-placeholder{padding:48px;text-align:center;background:#e8f5ff;color:#155a86}.qpd-faq details{padding:16px 0;border-bottom:1px solid #dce8f1}.qpd-faq summary{font-weight:600;color:#13243a;cursor:pointer}.qpd-faq p{line-height:1.8;color:#52697d}.qpd-related{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.qpd-related a{padding:12px;background:#fff;border:1px solid #e4edf4;color:#13243a}.qpd-related img{width:100%;height:150px;object-fit:contain;background:#f3f8fc}.qpd-related b,.qpd-related span{display:block;margin-top:7px}.qpd-related span{color:#0077c8;font-size:12px}
@media(max-width:900px){.qp-hero-grid,.qpd-top{grid-template-columns:1fr}.qp-category{grid-template-columns:repeat(2,1fr)}.qp-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.qp-wrap,.qpd-wrap{width:calc(100% - 24px)}.qp-hero{padding:30px 0}.qp-hero h1{font-size:29px}.qp-category,.qp-grid,.qpd-related{grid-template-columns:1fr}.qp-category a{min-height:0}.qp-image{height:210px}.qpd-top{padding:16px}.qpd-main-image,.qpd-main-image img{min-height:280px;height:280px}.qpd-summary h1{font-size:25px}.qpd-anchor{justify-content:flex-start;gap:18px;overflow:auto;white-space:nowrap}.qpd-table th,.qpd-table td{min-width:130px}.qpd-content{padding:26px 0}}

/* Prototype catalogue: population filters and spacious image-left rows. */
.qp-people{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:16px;padding:14px 16px;background:#fff;border:1px solid #e4edf4;border-radius:7px}
.qp-people>div{margin-right:auto}
.qp-people>div b,.qp-people>div span{display:block}
.qp-people>div b{color:#13243a}
.qp-people>div span{margin-top:3px;font-size:11px;color:#7e8fa0}
.qp-people>a{padding:8px 11px;border:1px solid #d6e7f2;border-radius:5px;color:#52697d;font-size:13px}
.qp-people>a.active{border-color:#0077c8;background:#e8f5ff;color:#0077c8}
.qp-result p{margin:6px 0 0;color:#7e8fa0;font-size:13px}
.qp-result>span{white-space:nowrap}
.qp-grid{grid-template-columns:1fr;gap:16px}
.qp-card{display:grid;grid-template-columns:310px minmax(0,1fr)}
.qp-image{height:auto;min-height:255px}
.qp-image img{height:255px;padding:22px}
.qp-body{align-items:flex-start;min-width:0;padding:24px 28px}
.qp-body h3{font-size:21px;margin:7px 0}
.qp-body>p{font-size:14px;line-height:1.8;-webkit-line-clamp:4;margin:12px 0}
.qp-meta{margin:0 0 16px}
.qp-meta span{padding:6px 8px}
.qp-detail{display:inline-block;padding:10px 18px}
.qp-empty{grid-column:auto}
@media(max-width:900px){.qp-card{grid-template-columns:260px minmax(0,1fr)}}
@media(max-width:600px){.qp-people{align-items:stretch}.qp-people>div{width:100%}.qp-people>a{flex:1 1 calc(33.333% - 8px);text-align:center}.qp-result{align-items:flex-end;gap:12px}.qp-card{grid-template-columns:1fr}.qp-image{height:auto;min-height:220px}.qp-image img{height:220px}.qp-body{padding:20px}}

/* Production product catalogue and detail pages. */
.qpc-page,.qpcd-page{background:var(--c-soft);color:var(--c-text)}
.qpc-wrap,.qpcd-wrap{width:min(1160px,calc(100% - 48px));margin:0 auto}
.qpc-hero{padding:52px 0;background:#0b3658;color:#fff}
.qpc-crumb,.qpcd-crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--c-muted)}
.qpc-crumb{margin-bottom:28px;color:#bed4e5}
.qpc-crumb a{color:#fff}
.qpc-hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);gap:56px;align-items:end}
.qpc-kicker{font-size:13px;color:#79d8d2;font-weight:700}
.qpc-hero h1{margin:10px 0 14px;color:#fff;font-size:38px;line-height:1.3;letter-spacing:0}
.qpc-hero-copy p{max-width:660px;color:#d8e8f2;font-size:16px;line-height:1.85}
.qpc-search{padding:20px;background:#fff;border-radius:8px;color:var(--c-ink);box-shadow:0 14px 34px rgba(0,0,0,.15)}
.qpc-search label{display:block;margin-bottom:9px;font-size:13px;font-weight:700}
.qpc-search-row{display:flex}
.qpc-search input{min-width:0;flex:1;padding:12px 14px;border:1px solid #bfd5e4;border-radius:5px 0 0 5px;font:inherit;outline:none}
.qpc-search input:focus{border-color:var(--c-primary);box-shadow:inset 0 0 0 1px var(--c-primary)}
.qpc-search button{padding:0 22px;border:0;border-radius:0 5px 5px 0;background:var(--c-primary-deep);color:#fff;font:inherit;font-weight:700;cursor:pointer}
.qpc-hot{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px;font-size:12px;color:var(--c-muted)}
.qpc-hot a{color:var(--c-primary-deep)}
.qpc-main{padding:32px 0 72px}
.qpc-filter-group{margin-bottom:16px}
.qpc-filter-head h2{margin:0 0 10px;color:var(--c-ink);font-size:15px}
.qpc-categories{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.qpc-categories a{min-height:80px;padding:14px 15px;border:1px solid var(--c-line);border-radius:6px;background:#fff;color:var(--c-text)}
.qpc-categories a.active{border-color:var(--c-primary);background:var(--c-primary-soft);color:var(--c-primary-deep)}
.qpc-categories b,.qpc-categories span{display:block}
.qpc-categories span{margin-top:4px;color:var(--c-muted);font-size:11px;line-height:1.45}
.qpc-people{display:flex;gap:8px;flex-wrap:wrap}
.qpc-people a{padding:8px 14px;border:1px solid #d1e1eb;border-radius:5px;background:#fff;color:#52697d;font-size:13px}
.qpc-people a.active{border-color:var(--c-primary-deep);background:var(--c-primary-deep);color:#fff}
.qpc-result{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin:38px 0 16px}
.qpc-result h2{margin:0;color:var(--c-ink);font-size:25px;letter-spacing:0}
.qpc-result p{margin:6px 0 0;color:var(--c-muted);font-size:13px}
.qpc-result>span{flex:0 0 auto;color:var(--c-muted);font-size:13px}
.qpc-list{display:flex;flex-direction:column;gap:16px}
.qpc-product{display:grid;grid-template-columns:330px minmax(0,1fr);overflow:hidden;border:1px solid var(--c-line);border-radius:8px;background:#fff;box-shadow:var(--shadow-sm)}
.qpc-product-image{position:relative;display:grid;min-height:270px;place-items:center;background:#f7fbfe}
.qpc-product-image img{width:100%;height:270px;padding:24px;object-fit:contain}
.qpc-no-image{color:#8da4b5;font-weight:700}
.qpc-category-tag{position:absolute;top:13px;left:13px;padding:5px 9px;border-radius:4px;background:var(--c-accent-soft);color:#087e78;font-size:11px;font-weight:700}
.qpc-product-body{display:flex;min-width:0;flex-direction:column;align-items:flex-start;padding:26px 30px}
.qpc-product-brand{color:var(--c-accent);font-size:12px;font-weight:700}
.qpc-product h3{margin:6px 0 2px;font-size:22px;line-height:1.45;letter-spacing:0}
.qpc-product h3 a{color:var(--c-ink)}
.qpc-model{color:var(--c-primary-deep);font-size:13px;font-weight:700}
.qpc-product-body>p{margin:12px 0;color:#52697d;line-height:1.8}
.qpc-product-facts{display:flex;gap:24px;flex-wrap:wrap;margin:0 0 18px}
.qpc-product-facts div{display:grid;grid-template-columns:auto auto;gap:7px;font-size:12px}
.qpc-product-facts dt{color:var(--c-muted)}
.qpc-product-facts dd{margin:0;color:var(--c-text)}
.case-filters{display:flex;gap:12px;flex-wrap:wrap;padding:18px 0}.case-filters select,.case-filters input{min-height:42px;padding:0 12px;border:1px solid var(--c-line);border-radius:6px;background:#fff;color:var(--c-text)}.case-filters input{min-width:220px}.case-more{text-align:center;padding:28px 0}.case-article{max-width:860px;margin:0 auto;padding:36px 0 70px}.case-article h1{font-size:38px;line-height:1.3;margin:12px 0}.case-facts{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin:26px 0;padding:18px;background:#f5f9fc;border-radius:8px}.case-facts dt{font-size:12px;color:var(--c-muted)}.case-facts dd{margin:5px 0 0;font-weight:600;line-height:1.5}.case-cover{margin:26px 0;text-align:center}.case-cover img{max-width:100%;max-height:520px;object-fit:contain;border-radius:8px}.case-rich{font-size:16px;line-height:1.9}.case-rich img,.case-rich video{display:block;max-width:100%;height:auto;margin-left:auto;margin-right:auto}.case-rich table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse}.case-rich th,.case-rich td{border:1px solid var(--c-line);padding:8px}.case-rich p,.case-rich li,.case-rich td,.case-rich th,.case-rich blockquote,.case-rich figcaption,.case-rich div,.case-rich span,.case-rich strong,.case-rich em{font-size:16px!important;line-height:1.85}.case-rich h1{font-size:28px!important}.case-rich h2{font-size:24px!important}.case-rich h3{font-size:20px!important}.case-rich h4{font-size:18px!important}.case-rich h1 span,.case-rich h2 span,.case-rich h3 span,.case-rich h4 span{font-size:inherit!important;line-height:inherit}.case-video{display:block;width:100%;max-height:520px;margin:28px auto;border-radius:8px}
.qpc-detail-link{margin-top:auto;padding:9px 16px;border-radius:5px;background:var(--c-primary-deep);color:#fff;font-size:13px;font-weight:700}
.qpc-empty{padding:64px 24px;border:1px solid var(--c-line);background:#fff;text-align:center}
.qpc-empty h3{color:var(--c-ink);font-size:20px}.qpc-empty p{margin:6px 0 12px;color:var(--c-muted)}
.qpcd-wrap{padding:28px 0 76px}
.qpcd-crumb{margin-bottom:24px}.qpcd-crumb a{color:var(--c-primary-deep)}
.qpcd-top{display:grid;grid-template-columns:minmax(0,48%) minmax(0,1fr);gap:46px;padding:30px;border:1px solid var(--c-line);background:#fff}
.qpcd-main-image{display:grid;min-height:420px;place-items:center;background:#f5f9fc;color:#8da4b5;font-weight:700}
.qpcd-main-image img{width:100%;height:420px;padding:30px;object-fit:contain}
.qpcd-thumbs{display:flex;gap:9px;margin-top:10px;overflow-x:auto;padding-bottom:2px}
.qpcd-thumbs button{width:72px;height:62px;flex:0 0 auto;border:1px solid #d4e2eb;border-radius:4px;background:#fff;cursor:pointer}
.qpcd-thumbs button.active{border:2px solid var(--c-primary)}
.qpcd-thumbs img{width:100%;height:100%;padding:4px;object-fit:contain}
.qpcd-category{color:var(--c-accent);font-size:13px;font-weight:700}
.qpcd-summary h1{margin:9px 0 4px;color:var(--c-ink);font-size:31px;line-height:1.38;letter-spacing:0}
.qpcd-model{color:var(--c-primary-deep);font-weight:700}
.qpcd-lead{margin:16px 0;line-height:1.85}
.qpcd-summary dl{margin:0;border-top:1px solid var(--c-line)}
.qpcd-summary dl>div{display:grid;grid-template-columns:86px 1fr;gap:12px;padding:11px 0;border-bottom:1px solid var(--c-line)}
.qpcd-summary dt{color:var(--c-muted)}.qpcd-summary dd{margin:0;color:var(--c-text)}
.qpcd-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:22px}
.qpcd-back{color:var(--c-primary-deep);font-weight:700}
.qpcd-anchor{position:sticky;top:68px;z-index:10;display:flex;justify-content:center;gap:34px;margin:24px 0 0;padding:15px 20px;background:var(--c-ink)}
.qpcd-anchor a{color:#fff;font-size:14px}
.qpcd-section{max-width:900px;margin:0 auto;padding:38px 0;border-bottom:1px solid #d8e5ee;scroll-margin-top:132px}
.qpcd-section>h2{margin:0 0 20px;color:var(--c-ink);font-size:25px;letter-spacing:0}
.qpcd-section .rich{font-size:16px;line-height:1.9}
.qpcd-section .rich img{display:block;max-width:100%;height:auto;margin:24px auto}
.qpcd-table{overflow-x:auto;border:1px solid var(--c-line)}
.qpcd-table table{width:100%;border-collapse:collapse;background:#fff}
.qpcd-table th,.qpcd-table td{padding:13px 15px;border-bottom:1px solid var(--c-line);text-align:left;vertical-align:top}
.qpcd-table tr:last-child th,.qpcd-table tr:last-child td{border-bottom:0}
.qpcd-table th{width:24%;background:#f4f8fb;color:#52697d}
.qpcd-table td:last-child:not(:nth-child(2)){color:var(--c-muted);font-size:12px}
.qpcd-note{margin-top:12px;color:var(--c-muted);font-size:12px}
.qpcd-videos{display:grid;gap:18px}.qpcd-videos video{display:block;width:100%;max-height:520px;background:#071b2b}
.qpcd-rich-images{display:grid;gap:22px;margin-top:24px}.qpcd-rich-images figure{margin:0}.qpcd-rich-images img{display:block;max-width:100%;height:auto;margin:0 auto}.qpcd-rich-images figcaption{text-align:center;margin-top:7px;color:var(--c-muted);font-size:12px}
.qpcd-empty-media{padding:48px 20px;background:var(--c-primary-soft);color:#4f738b;text-align:center}
.qpcd-faq details{padding:17px 0;border-bottom:1px solid #d8e5ee}.qpcd-faq summary{color:var(--c-ink);font-weight:700;cursor:pointer}.qpcd-faq p,.qpcd-faq details>div{margin:11px 0 0;line-height:1.8;color:#52697d}
.qpcd-related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.qpcd-related>a{padding:12px;border:1px solid var(--c-line);border-radius:6px;background:#fff;color:var(--c-ink)}
.qpcd-related-image{display:grid;height:160px;place-items:center;background:#f5f9fc;color:#8da4b5;font-size:12px}.qpcd-related-image img{width:100%;height:100%;padding:12px;object-fit:contain}
.qpcd-related b,.qpcd-related>a>span:last-child{display:block;margin-top:8px}.qpcd-related>a>span:last-child{margin-top:2px;color:var(--c-primary-deep);font-size:12px}
@media(max-width:900px){.qpc-hero-grid,.qpcd-top{grid-template-columns:1fr}.qpc-categories{grid-template-columns:repeat(2,minmax(0,1fr))}.qpc-product{grid-template-columns:280px minmax(0,1fr)}.qpcd-main-image,.qpcd-main-image img{min-height:360px;height:360px}}
@media(max-width:600px){.qpc-wrap,.qpcd-wrap{width:calc(100% - 24px)}.qpc-hero{padding:34px 0}.qpc-hero-grid{gap:26px}.qpc-hero h1{font-size:29px}.qpc-search{padding:15px}.qpc-search button{padding:0 16px}.qpc-categories{grid-template-columns:1fr}.qpc-categories a{min-height:0}.qpc-people a{flex:1 1 calc(33.333% - 8px);padding:8px;text-align:center}.qpc-result{align-items:flex-end}.qpc-result h2{font-size:21px}.qpc-product{grid-template-columns:1fr}.qpc-product-image{min-height:230px}.qpc-product-image img{height:230px}.qpc-product-body{padding:21px}.qpc-product h3{font-size:20px}.qpc-product-facts{display:grid;gap:7px}.qpcd-top{gap:22px;padding:16px}.qpcd-main-image,.qpcd-main-image img{min-height:280px;height:280px}.qpcd-summary h1{font-size:25px}.qpcd-anchor{top:68px;justify-content:flex-start;gap:22px;overflow-x:auto;white-space:nowrap}.qpcd-section{padding:30px 0}.qpcd-table th,.qpcd-table td{min-width:130px}.qpcd-related{grid-template-columns:1fr}.qpcd-related-image{height:190px}}
@media(max-width:700px){.case-article{padding-top:24px}.case-article h1{font-size:28px}.case-facts{grid-template-columns:1fr 1fr}.case-rich p,.case-rich li,.case-rich td,.case-rich th,.case-rich blockquote,.case-rich figcaption,.case-rich div,.case-rich span,.case-rich strong,.case-rich em{font-size:15px!important;line-height:1.8}.case-rich h1{font-size:24px!important}.case-rich h2{font-size:21px!important}.case-rich h3{font-size:18px!important}.case-rich h4{font-size:17px!important}.case-filters select,.case-filters input,.case-filters button{width:100%}.case-filters input{min-width:0}}

/* Keep pasted Word content readable and consistent across every solution detail page. */
.solution-detail .rich{font-size:16px;line-height:1.85}
.solution-detail .rich p,
.solution-detail .rich li,
.solution-detail .rich td,
.solution-detail .rich th,
.solution-detail .rich blockquote,
.solution-detail .rich figcaption,
.solution-detail .rich div,
.solution-detail .rich span,
.solution-detail .rich strong,
.solution-detail .rich em{font-size:16px !important;line-height:1.85}
.solution-detail .rich h2{font-size:24px !important;line-height:1.45;margin:30px 0 12px}
.solution-detail .rich h3{font-size:20px !important;line-height:1.5;margin:24px 0 10px}
.solution-detail .rich h4{font-size:18px !important;line-height:1.5;margin:20px 0 8px}
.solution-detail .rich h1{font-size:28px !important;line-height:1.4;margin:30px 0 12px}
.solution-detail .rich h5{font-size:17px !important;line-height:1.5;margin:18px 0 8px}
.solution-detail .rich h6{font-size:16px !important;line-height:1.5;margin:16px 0 8px}
.solution-detail .rich h2 span,
.solution-detail .rich h3 span,
.solution-detail .rich h4 span,
.solution-detail .rich h1 span,
.solution-detail .rich h5 span,
.solution-detail .rich h6 span{font-size:inherit !important;line-height:inherit}
.solution-detail .rich table{font-size:15px}
.solution-detail .rich table p,
.solution-detail .rich table li,
.solution-detail .rich table span,
.solution-detail .rich table strong,
.solution-detail .rich table em{font-size:15px !important;line-height:1.7}
@media(max-width:700px){
  .solution-detail .rich,
  .solution-detail .rich p,
  .solution-detail .rich li,
  .solution-detail .rich td,
  .solution-detail .rich th,
  .solution-detail .rich blockquote,
  .solution-detail .rich figcaption,
  .solution-detail .rich div,
  .solution-detail .rich span,
  .solution-detail .rich strong,
  .solution-detail .rich em{font-size:15px !important;line-height:1.8}
  .solution-detail .rich h2{font-size:21px !important}
  .solution-detail .rich h3{font-size:18px !important}
  .solution-detail .rich h4{font-size:17px !important}
  .solution-detail .rich h1{font-size:24px !important}
  .solution-detail .rich h5{font-size:16px !important}
  .solution-detail .rich h6{font-size:15px !important}
  .solution-detail .rich h2 span,
  .solution-detail .rich h3 span,
  .solution-detail .rich h4 span,
  .solution-detail .rich h1 span,
  .solution-detail .rich h5 span,
  .solution-detail .rich h6 span{font-size:inherit !important}
}

/* ============================================================
   首页 Hero 轮播（多图自动轮转 · 后台可增删改）
   ============================================================ */
.hero-carousel{overflow:hidden}
.hero-carousel .slides{position:absolute;inset:0;z-index:0}
.hero-carousel .slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity .8s ease}
.hero-carousel .slide.active{opacity:1}
/* 轮播图文字已合成在图片中：去掉遮罩渐变，避免压暗图内文字 */
.hero-carousel:before{content:none}
.hero-carousel .hero-cap{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;min-height:540px;padding-bottom:66px}
.hero-carousel .hero-cap .cta-row{margin-top:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.hero-carousel .arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:44px;height:44px;border:none;border-radius:50%;background:rgba(255,255,255,.22);color:#fff;font-size:26px;line-height:1;cursor:pointer;backdrop-filter:blur(4px);transition:.18s}
.hero-carousel .arrow:hover{background:rgba(255,255,255,.42)}
.hero-carousel .arrow.prev{left:22px}
.hero-carousel .arrow.next{right:22px}
.hero-carousel .dots{position:absolute;bottom:22px;left:0;right:0;z-index:3;display:flex;justify-content:center;gap:10px}
.hero-carousel .dot{width:11px;height:11px;border-radius:50%;border:2px solid rgba(255,255,255,.7);background:transparent;cursor:pointer;padding:0;transition:.18s}
.hero-carousel .dot.on{background:#fff;border-color:#fff;width:26px;border-radius:6px}
@media (max-width:860px){
  .hero-carousel .arrow{width:38px;height:38px;font-size:22px}
  .hero-carousel .arrow.prev{left:12px}
  .hero-carousel .arrow.next{right:12px}
  .hero-carousel .hero-cap{min-height:420px;padding-bottom:58px}
}
@media (max-width:520px){
  .hero-carousel .arrow{display:none}
  .hero-carousel .dots{bottom:14px}
  .hero-carousel .hero-cap{min-height:380px;padding-bottom:50px}
}