/* 云擎网络官网样式（Reyee 风格） */
:root{
  --navy:#0a1730; --navy-2:#12264a; --accent:#1f6bff; --cyan:#22c9ff;
  --ink:#0f1f33; --muted:#5b6b80; --line:#e3e9f2; --bg:#fff; --bg-alt:#f5f8fc;
  --radius:14px; --shadow:0 12px 32px rgba(10,23,48,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.65}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3{line-height:1.3}
.center{text-align:center}

/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{position:relative;display:flex;align-items:center;gap:32px;height:80px;max-width:1400px}
.nav-collapse{display:contents}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px}
.logo-img{height:42px;width:auto}
.footer-brand img{height:34px;width:auto}
.header-right{margin-left:auto;display:flex;align-items:center;gap:18px}
.header-right .nav-top{padding:6px 2px;border-bottom:2px solid transparent}
.header-right .nav-top:hover{color:var(--accent);border-color:var(--accent)}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--cyan));color:#fff;font-weight:800}
.main-nav{display:flex;gap:22px;font-size:15px;color:var(--ink)}
.main-nav a{padding:6px 2px;border-bottom:2px solid transparent}
.main-nav a:hover,.main-nav a.on{color:var(--accent);border-color:var(--accent)}
.header-cta{font-size:13px;color:var(--accent);border:1px solid var(--accent);border-radius:999px;padding:6px 14px}
/* 语言切换菜单 */
.lang-menu{position:relative;font-size:14px;color:var(--ink)}
.lang-menu summary{list-style:none;cursor:pointer;padding:6px 12px;border:1px solid var(--line);border-radius:999px;user-select:none;white-space:nowrap}
.lang-menu summary::-webkit-details-marker{display:none}
.lang-menu summary:hover{border-color:var(--accent);color:var(--accent)}
.lang-menu[open] summary{border-color:var(--accent);color:var(--accent)}
.lang-list{position:absolute;top:calc(100% + 8px);right:0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;min-width:170px;z-index:200;max-height:320px;overflow:auto}
.lang-list a{display:block;padding:7px 14px;border-radius:8px;font-size:14px;color:var(--ink)}
.lang-list a:hover{background:var(--bg-alt);color:var(--accent)}
.lang-list a.cur{color:var(--accent);font-weight:700;background:#e9f0ff}
.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:8px;width:40px;height:40px;font-size:18px;cursor:pointer;color:var(--muted)}

/* ===== Hero 轮播 ===== */
.hero{position:relative;background:var(--navy);overflow:hidden}
.hero-slide{display:none;min-height:440px;background:radial-gradient(900px 400px at 80% 10%,rgba(34,201,255,.25),transparent 60%),radial-gradient(700px 380px at 10% 90%,rgba(31,107,255,.35),transparent 60%),linear-gradient(120deg,var(--navy),var(--navy-2))}
.hero-slide.on{display:flex;align-items:center}
.hero-slide.s2{background:radial-gradient(900px 420px at 85% 20%,rgba(34,201,255,.3),transparent 60%),linear-gradient(120deg,#071226,#12306b)}
.hero-slide.s3{background:radial-gradient(900px 420px at 15% 15%,rgba(31,107,255,.4),transparent 60%),linear-gradient(120deg,#0a1730,#0f2c55)}
.hero-slide .wrap{width:100%}
.hero-slide h1{color:#fff;font-size:44px;font-weight:800;letter-spacing:-.5px;text-shadow:0 4px 24px rgba(0,0,0,.35)}
.hero-slide p{color:#b9c9e2;font-size:17px;margin:18px 0 28px;max-width:560px}
.btn-light{display:inline-block;background:#fff;color:var(--navy);font-weight:700;padding:12px 30px;border-radius:999px;transition:transform .2s}
.btn-light:hover{transform:translateY(-2px)}
.hero-dots{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:10px}
.hero-dots i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.35);cursor:pointer;transition:background .2s}
.hero-dots i.on{background:#fff}

/* ===== 通用区块 ===== */
.section{padding:76px 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:linear-gradient(160deg,var(--navy),#0e2242);color:#fff}
.eyebrow{text-align:center;font-size:13px;font-weight:700;letter-spacing:3px;color:var(--accent);margin-bottom:8px}
.eyebrow.light{color:var(--cyan)}
.sec-title{text-align:center;font-size:30px;font-weight:800;margin-bottom:44px}
.sec-title.light{color:#fff}
.empty-tip{grid-column:1/-1;text-align:center;color:var(--muted);padding:40px 0}

/* ===== 产品卡片 ===== */
.p-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:34px}
.p-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}
.section-dark .p-card{border-color:rgba(255,255,255,.14)}
.p-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.p-thumb{height:170px;background:linear-gradient(135deg,#16345f,#1f6bff);display:flex;align-items:center;justify-content:center;overflow:hidden}
.p-thumb span{color:rgba(255,255,255,.9);font-size:34px;font-weight:800;letter-spacing:1px}
.p-thumb img{width:100%;height:100%;object-fit:cover}
.p-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.p-cat{font-size:12px;font-weight:700;color:var(--accent);background:#e9f0ff;align-self:flex-start;padding:3px 10px;border-radius:999px}
.p-body h3{font-size:17px}
.p-body p{color:var(--muted);font-size:14px;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.p-more{color:var(--accent);font-size:14px;font-weight:600}
.cat-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:36px}
.cat-chip{color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:9px 22px;font-size:15px;transition:all .2s}
.cat-chip:hover{border-color:var(--cyan);color:var(--cyan)}

/* ===== 联系横幅 ===== */
.contact-band{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;background:linear-gradient(120deg,var(--navy-2),var(--accent));border-radius:18px;padding:46px 50px;color:#fff}
.contact-band h2{font-size:26px}
.contact-band p{color:#d7e3fa;margin-top:10px}
.contact-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-solid{display:inline-block;background:var(--accent);color:#fff;font-weight:700;padding:12px 28px;border-radius:10px;border:none;cursor:pointer;font-size:15px;transition:background .2s}
.btn-solid:hover{background:#1a5ae0}
.btn-ghost{display:inline-block;border:1px solid var(--line);color:var(--ink);font-weight:600;padding:12px 28px;border-radius:10px;font-size:15px;transition:border-color .2s,color .2s}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.contact-band .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}
.contact-band .btn-ghost:hover{border-color:#fff;color:#fff}
.btn-outline{display:inline-block;border:1px solid rgba(255,255,255,.4);color:#fff;padding:11px 26px;border-radius:999px;font-weight:600}

/* ===== 列表/详情页 ===== */
.page-head{background:linear-gradient(120deg,var(--navy),var(--navy-2));color:#fff;padding:56px 0}
.page-head h1{font-size:34px}
.page-head p{color:#b9c9e2;margin-top:8px}
.filter-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.filter-chip{border:1px solid var(--line);border-radius:999px;padding:8px 20px;font-size:14px;color:var(--ink-2,#334);transition:all .2s}
.filter-chip:hover{border-color:var(--accent);color:var(--accent)}
.filter-chip.on{background:var(--accent);border-color:var(--accent);color:#fff}
.detail-crumb{padding:18px 0;font-size:14px;color:var(--muted)}
.detail-crumb a:hover{color:var(--accent)}
.detail-hero{padding-top:20px}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.detail-thumb{border-radius:18px;overflow:hidden;background:linear-gradient(135deg,#16345f,#1f6bff);min-height:320px;display:flex;align-items:center;justify-content:center}
.detail-thumb span{color:rgba(255,255,255,.9);font-size:56px;font-weight:800}
.detail-thumb img{width:100%;height:100%;object-fit:cover}
.detail-info h1{font-size:30px;margin:12px 0}
.detail-model{color:var(--muted);font-size:15px}
.detail-summary{margin-top:14px;font-size:16px}
.detail-actions{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}
.detail-desc p{margin-bottom:12px;color:var(--ink)}

/* ===== 页脚 ===== */
.site-footer{background:var(--navy);color:#9fb2cf;padding:52px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:34px;padding-bottom:30px}
.footer-brand{color:#fff;font-weight:800;font-size:17px;display:flex;align-items:center;gap:10px}
.footer-desc{margin-top:12px;font-size:14px;line-height:1.8}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px}
.site-footer a,.site-footer p{display:block;font-size:14px;padding:4px 0}
.site-footer a:hover{color:#fff}
.footer-copy{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;font-size:13px;color:#63779a}

/* ===== 响应式 ===== */
@media (max-width:900px){
  .p-grid{grid-template-columns:1fr}
  .detail-grid,.footer-grid{grid-template-columns:1fr}
  .hero-slide h1{font-size:32px}
  .section{padding:56px 0}
  .contact-band{padding:32px}

  /* ===== 收合态：logo 居中，其余进汉堡菜单 ===== */
  .header-inner{gap:0}
  .logo{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}
  .logo-img{height:34px}
  .nav-toggle{display:block}
  .nav-collapse{display:none;position:absolute;top:80px;left:0;right:0;background:#fff;flex-direction:column;padding:8px 24px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav-collapse.open{display:flex}
  .main-nav{display:flex;flex-direction:column;gap:0}
  .main-nav .nav-top{padding:12px 0;border-bottom:1px dashed var(--line)}
  .nav-drop{display:flex;flex-direction:column}
  .nav-drop .drop-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;background:var(--bg-alt);padding:4px 0 8px 14px;min-width:0}
  .drop-menu a{padding:9px 14px}
  .header-right{margin-left:0;flex-direction:column;align-items:stretch;gap:12px;padding-top:14px}
  .header-right .nav-top{padding:12px 0;border-bottom:1px dashed var(--line)}
  .lang-menu{align-self:flex-start}
  .nav-search{display:flex;width:100%}
  .nav-search input{flex:1;width:auto}
}
@media (max-width:560px){
  .p-grid{grid-template-columns:1fr}
  .header-cta{display:none}
  .logo-img{height:30px}
}

/* ===== 导航下拉菜单 + 搜索框 ===== */
.nav-drop{position:relative}
.nav-drop .caret{font-size:10px;opacity:.6}
.nav-drop .drop-menu{position:absolute;top:calc(100% + 6px);left:-14px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;min-width:190px;opacity:0;visibility:hidden;transform:translateY(6px);transition:.15s ease;z-index:150}
.nav-drop:hover .drop-menu,.nav-drop:focus-within .drop-menu{opacity:1;visibility:visible;transform:none}
.drop-menu a{display:block;padding:8px 14px;border-radius:8px;font-size:14px;border-bottom:none!important;white-space:nowrap}
.drop-menu a:hover{background:var(--bg-alt);color:var(--accent)}
.nav-search{display:flex;align-items:center;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:#fff}
.nav-search input{border:none;outline:none;padding:7px 4px 7px 14px;width:120px;font-size:13px;background:transparent}
.nav-search input:focus{width:150px}
.nav-search button{border:none;background:transparent;cursor:pointer;padding:7px 10px;font-size:13px}

/* ===== 关于我们 / 搜索页 ===== */
.about-body{max-width:820px;font-size:16px;line-height:1.9;color:var(--ink)}
.about-body p{margin-bottom:18px}
.about-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.page-head{background:linear-gradient(120deg,var(--navy),var(--navy-2));color:#fff;padding:64px 0 56px}
.page-head h1{font-size:34px;margin-bottom:10px}
.page-head p{opacity:.75;font-size:15px}

/* ===== 产品详情页 ===== */
.pd-crumb{border-bottom:1px solid var(--line);font-size:13px;color:var(--muted);padding:14px 0}
.pd-crumb .wrap{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.pd-crumb a:hover{color:var(--accent)}
.pd-crumb em{font-style:normal;color:var(--ink);font-weight:600}
.pd-crumb span{opacity:.4}

/* 首屏 */
.pd-hero{padding:36px 0 46px}
.pd-hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:start}
.pd-gallery{position:sticky;top:104px}
.pd-stage{position:relative;background:#f6f8fb;border-radius:16px;display:flex;align-items:center;justify-content:center;min-height:380px;padding:28px;overflow:hidden}
.pd-stage img{max-height:420px;width:auto;max-width:100%;object-fit:contain}
.pd-noimg span{font-size:64px;font-weight:800;color:#c9d5e6}
.pd-arrow{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:22px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s}
.pd-arrow:hover{border-color:var(--accent);color:var(--accent)}
.pd-arrow.prev{left:14px}
.pd-arrow.next{right:14px}
.pd-count{position:absolute;right:14px;bottom:12px;font-size:12px;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:999px;padding:3px 10px}
.pd-thumbs{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.pd-thumb{width:74px;padding:0;border:1px solid var(--line);background:#fff;border-radius:10px;overflow:hidden;cursor:pointer;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center}
.pd-thumb img{width:100%;height:100%;object-fit:cover;opacity:.75;transition:.2s}
.pd-thumb:hover img,.pd-thumb.on img{opacity:1}
.pd-thumb.on{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}

.pd-kicker{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.pd-model-code{font-family:ui-monospace,Consolas,monospace;font-size:13px;color:var(--muted)}
.pd-info h1{font-size:34px;line-height:1.25;letter-spacing:-.3px}
.pd-subtitle{margin-top:12px;font-size:17px;font-weight:500}
.pd-summary{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.75}
.pd-label{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}

.pd-models{margin-top:26px}
.pd-model-list{display:flex;flex-direction:column;gap:8px}
.pd-model{display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:10px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;text-align:left;transition:.15s;font:inherit;color:inherit}
.pd-model strong{font-size:14px;font-family:ui-monospace,Consolas,monospace}
.pd-model small{font-size:12.5px;color:var(--muted)}
.pd-model:hover{border-color:#b9cbe8}
.pd-model.on{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);background:#f7faff}
.pd-sel{display:flex;gap:22px;margin-top:12px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.pd-sel b{color:var(--ink);font-size:15px}

.pd-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.pd-highlights{margin-top:26px;padding-top:22px;border-top:1px solid var(--line)}
.pd-highlights ul{list-style:none;display:grid;gap:9px}
.pd-highlights li{position:relative;padding-left:26px;font-size:14.5px;line-height:1.6}
.pd-highlights li::before{content:"✓";position:absolute;left:0;top:1px;width:18px;height:18px;border-radius:50%;background:#e7f0ff;color:var(--accent);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 0}
.tag-chip{font-size:12px;padding:4px 12px;border-radius:999px;background:var(--bg-alt);color:#566;border:1px solid var(--line)}

/* 吸顶章节导航 */
.pd-nav{position:sticky;top:80px;z-index:90;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.pd-nav .wrap{display:flex;align-items:center;gap:24px;height:56px}
.pd-nav-list{display:flex;gap:26px;list-style:none;flex:1;overflow-x:auto;scrollbar-width:none;margin:0;padding:0}
.pd-nav-list::-webkit-scrollbar{display:none}
.pd-nav-list a{display:block;position:relative;padding:17px 0;font-size:14.5px;color:var(--muted);white-space:nowrap}
.pd-nav-list a:hover{color:var(--ink)}
.pd-nav-list a.on{color:var(--ink);font-weight:600}
.pd-nav-list a.on::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--accent)}
.pd-nav-cta{font-size:13.5px;font-weight:600;color:#fff;background:var(--accent);padding:9px 18px;border-radius:8px;white-space:nowrap}
.pd-nav-cta:hover{background:#1a5ae0}

/* 章节 */
.pd-section{padding:64px 0;border-bottom:1px solid var(--line);scroll-margin-top:150px}
.pd-section:last-of-type{border-bottom:none}
.pd-head{margin-bottom:34px}
.pd-eyebrow{font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:10px}
.pd-head h2{font-size:30px;letter-spacing:-.3px}
.pd-sub{margin-top:10px;color:var(--muted);font-size:15.5px;max-width:820px}

/* 富文本 */
.pd-prose{font-size:15.5px;line-height:1.9;color:#25374f}
.pd-prose p{margin-bottom:14px}
.pd-prose p:last-child{margin-bottom:0}
.pd-prose-narrow{max-width:880px}
.pd-lead p{font-size:16.5px}
.pd-prose ul,.pd-prose ol{margin:0 0 16px 22px}
.pd-prose li{margin-bottom:6px}
.pd-prose h3,.pd-prose h4{margin:24px 0 10px;color:var(--ink)}
.pd-prose table{border-collapse:collapse;width:100%;margin:12px 0 18px;font-size:14px}
.pd-prose th,.pd-prose td{border:1px solid var(--line);padding:9px 14px;text-align:left}
.pd-prose th{background:#f7f9fc}
.pd-prose img{max-width:100%;border-radius:10px;margin:8px 0}
.pd-empty{color:var(--muted)}

/* 数据指标 */
.pd-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.pd-stat{background:#fff;padding:28px 20px;text-align:center}
.pd-stat strong{display:block;font-size:30px;font-weight:800;color:var(--navy);letter-spacing:-.5px;line-height:1.2}
.pd-stat span{display:block;margin-top:8px;font-size:13px;color:var(--muted)}

/* 图文 */
.pd-split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.pd-split.right .pd-split-media{order:2}
.pd-split.noimg{grid-template-columns:1fr}
.pd-split-media img{width:100%;border-radius:16px;object-fit:cover;aspect-ratio:4/3}

/* 规格表 */
.pd-specs{display:grid;gap:26px}
.spec-group{display:grid;grid-template-columns:240px 1fr;gap:24px;border-top:1px solid var(--line);padding-top:18px}
.spec-group-name{font-size:15px;font-weight:700;color:var(--ink);line-height:1.5}
.spec-rows{display:grid}
.spec-line{display:grid;grid-template-columns:1fr 1.25fr;gap:20px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px}
.spec-line:last-child{border-bottom:none}
.spec-k{color:var(--muted)}
.spec-v{color:var(--ink);font-weight:500}

/* 下载 */
.pd-dl{list-style:none;border-top:1px solid var(--line);margin:0;padding:0}
.pd-dl li{border-bottom:1px solid var(--line)}
.pd-dl a{display:flex;align-items:center;gap:16px;padding:18px 6px;transition:.15s}
.pd-dl a:hover{background:#f8faff;padding-left:14px}
.dl-ico{width:38px;height:38px;border-radius:10px;background:#eef4ff;color:var(--accent);display:flex;align-items:center;justify-content:center;flex:none}
.dl-main{flex:1;display:flex;flex-direction:column;gap:2px}
.dl-main strong{font-size:15px}
.dl-main small{font-size:12.5px;color:var(--muted)}
.dl-go{font-size:13.5px;color:var(--accent);font-weight:600;white-space:nowrap}

/* FAQ */
.pd-faq{border-top:1px solid var(--line);max-width:900px}
.pd-faq details{border-bottom:1px solid var(--line)}
.pd-faq summary{cursor:pointer;padding:20px 30px 20px 0;font-size:15.5px;font-weight:600;position:relative;list-style:none}
.pd-faq summary::-webkit-details-marker{display:none}
.pd-faq summary::after{content:"+";position:absolute;right:4px;top:16px;color:var(--muted);font-size:20px;font-weight:400}
.pd-faq details[open] summary::after{content:"–"}
.faq-a{padding:0 30px 20px 0;color:var(--muted);font-size:14.5px;line-height:1.8}

/* 选项卡 */
.pd-tabs{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff}
.pd-tab-heads{display:flex;border-bottom:1px solid var(--line);background:#f7f9fc;flex-wrap:wrap}
.pd-tab-head{border:none;background:transparent;padding:14px 24px;font-size:14.5px;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;font-family:inherit}
.pd-tab-head:hover{color:var(--ink)}
.pd-tab-head.on{color:var(--ink);font-weight:600;border-bottom-color:var(--accent);background:#fff}
.pd-tab-panel{display:none;padding:26px 24px;font-size:15px;line-height:1.85}
.pd-tab-panel.on{display:block}
.pd-tab-panel table{border-collapse:collapse;width:100%;font-size:14px;margin:6px 0}
.pd-tab-panel th,.pd-tab-panel td{border:1px solid var(--line);padding:9px 14px;text-align:left}
.pd-tab-panel th{background:#f7f9fc}
.pd-tab-panel img{max-width:100%}

/* 订购信息 */
.pd-table-wrap{border:1px solid var(--line);border-radius:14px;overflow:hidden}
.pd-table{width:100%;border-collapse:collapse;font-size:14.5px}
.pd-table th{background:#f7f9fc;text-align:left;padding:14px 18px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.pd-table td{padding:15px 18px;border-top:1px solid var(--line)}
.pd-table tr.hl td{background:#f5f9ff}
.td-price{font-weight:600}

.pd-related .p-grid{margin-bottom:28px}
.pd-end{padding-bottom:72px}
.pd-end .contact-band{margin-top:8px}

@media (max-width:900px){
  .pd-hero-grid{grid-template-columns:1fr;gap:26px}
  .pd-gallery{position:static}
  .pd-stage{min-height:240px;padding:16px}
  .pd-stage img{max-height:280px}
  .pd-info h1{font-size:26px}
  .pd-nav .wrap{height:50px;gap:12px}
  .pd-nav-list{gap:18px}
  .pd-nav-list a{padding:14px 0}
  .pd-nav-cta{display:none}
  .pd-section{padding:44px 0;scroll-margin-top:140px}
  .pd-head h2{font-size:24px}
  .pd-split{grid-template-columns:1fr;gap:22px}
  .pd-split.right .pd-split-media{order:0}
  .spec-group{grid-template-columns:1fr;gap:8px}
  .spec-line{grid-template-columns:1fr;gap:2px;padding:10px 0}
  .pd-stat strong{font-size:24px}
}