/* ==========================================================================
   浅色光感主题 · light-tech
   浅色底 + 柔和渐变光斑 + 玻璃拟态卡片 + 滚动进场动效
   ★ 类名与 standard 完全一致（区块模板复用），改的是视觉与层次。
   ★ 动效一律用 transform / opacity（GPU 友好），并尊重 prefers-reduced-motion。
   ========================================================================== */
:root{
  --brand:#2f6bff;
  --brand-soft:#eef4ff; --brand-line:#cfe0ff; --brand-glow:rgba(47,107,255,.30); --brand-deep:#1b4fd0;
  --ink:#0d1424; --ink-2:#4a5568; --ink-3:#8a94a6;
  --line:rgba(13,20,36,.09); --line-2:rgba(13,20,36,.14);
  --bg:#fff; --bg-2:#f6f8fc;
  --radius:14px; --radius-lg:22px;
  --wrap:1180px; --space:78px;
  --shadow-sm:0 1px 2px rgba(13,20,36,.04),0 4px 16px rgba(13,20,36,.05);
  --shadow-md:0 2px 8px rgba(13,20,36,.05),0 16px 40px rgba(13,20,36,.09);
  --shadow-lg:0 10px 30px rgba(13,20,36,.10),0 34px 70px rgba(13,20,36,.13);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}

/* 背景光斑：固定在视口上，内容滚动时形成"光在纸下"的层次。
   颜色全部由品牌主色派生（head.html 注入 --brand-glow）。 */
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(52% 40% at 82% 4%,var(--brand-glow),transparent 62%),
    radial-gradient(44% 34% at 8% 18%,rgba(124,92,255,.16),transparent 60%),
    radial-gradient(56% 38% at 46% 104%,rgba(0,194,184,.14),transparent 66%);
  opacity:.85}
@media (prefers-reduced-motion:no-preference){
  body::before{animation:wz-drift 26s var(--ease) infinite alternate}
  @keyframes wz-drift{
    from{transform:translate3d(0,0,0) scale(1)}
    to{transform:translate3d(-2.2%,1.6%,0) scale(1.06)}
  }
}

img{max-width:100%;height:auto;display:block}
a{color:var(--brand-deep);text-decoration:none;transition:color .2s}
a:hover{color:var(--brand)}
h1,h2,h3{line-height:1.25;margin:0 0 14px;font-weight:600;letter-spacing:-.015em;color:var(--ink)}
h1{font-size:clamp(30px,4.2vw,50px)}
h2{font-size:clamp(23px,2.6vw,32px)}
h3{font-size:18px}
p{margin:0 0 14px}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.muted{color:var(--ink-3)}
.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:12px;top:12px;background:#fff;padding:8px 14px;border-radius:10px;z-index:99;box-shadow:var(--shadow-md)}

/* ---------------- 按钮：渐变 + 光扫 + 抬升 ---------------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:500;cursor:pointer;position:relative;overflow:hidden;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-deep));box-shadow:0 6px 20px var(--brand-glow)}
.btn-primary:hover{color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 30px var(--brand-glow)}
.btn-primary::after{content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.42),transparent);transform:skewX(-18deg)}
@media (prefers-reduced-motion:no-preference){
  .btn-primary:hover::after{animation:wz-sheen .85s var(--ease)}
  @keyframes wz-sheen{from{left:-120%}to{left:130%}}
}

/* ---------------- 头部 ---------------- */
.site-header{position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,.72);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);
  border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:26px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:600;font-size:17px}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-mark{width:36px;height:36px;border-radius:11px;color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;
  white-space:nowrap;letter-spacing:-.02em;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));box-shadow:0 6px 16px var(--brand-glow)}
/* 组合标（图形+字标一体）：按原始比例显示，高度对齐原方形 logo 位 */
.brand-logo{height:36px;width:auto;display:block}
.site-nav{display:flex;gap:24px;margin-left:auto;font-size:15px}
.site-nav a{color:var(--ink-2);position:relative;padding:4px 0}
.site-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),transparent);transition:right .32s var(--ease)}
.site-nav a:hover{color:var(--ink)}
.site-nav a:hover::after{right:0}
.header-cta{font-size:14px;color:var(--brand-deep);font-weight:500}
.nav-toggle{display:none;margin-left:auto}

.breadcrumb{border-bottom:1px solid var(--line);background:rgba(255,255,255,.5)}
.breadcrumb ol{display:flex;gap:8px;font-size:13px;color:var(--ink-3);padding:11px 0}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:var(--line-2)}

/* ---------------- 首屏 ---------------- */
.hero{position:relative;padding:88px 0 72px;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center}
.hero h1{background:linear-gradient(120deg,var(--ink) 24%,var(--brand-deep));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:19px;color:var(--ink-2);max-width:60ch}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0 26px}
.hero-points li{background:rgba(255,255,255,.8);border:1px solid var(--brand-line);border-radius:999px;padding:6px 15px;
  font-size:14px;color:var(--brand-deep);box-shadow:var(--shadow-sm)}
.hero-media{background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  aspect-ratio:4/3;box-shadow:var(--shadow-lg);transform:perspective(1200px) rotateY(-3deg)}
.hero-media img{width:100%;height:100%;object-fit:cover}
/* 首屏「动态图」：同场景多张渲染图交叉淡入。
   ★ 基础态让第 1 张可见、其余透明 —— 这样在动画被停用（prefers-reduced-motion）
     或旧浏览器不支持动画时，看到的是一张完整的图，而不是一片空白。 */
.hero-media--anim{position:relative}
.hero-media--anim img{position:absolute;inset:0;opacity:0}
.hero-media--anim img:first-child{opacity:1}
@media (prefers-reduced-motion:no-preference){
  .hero-media--anim img{animation:heroFrames 24s var(--ease) infinite}
  .hero-media--anim img:nth-child(2){animation-delay:6s}
  .hero-media--anim img:nth-child(3){animation-delay:12s}
  .hero-media--anim img:nth-child(4){animation-delay:18s}
  .hero-media--anim img:nth-child(5){animation-delay:24s}
  .hero-media--anim img:nth-child(6){animation-delay:30s}
  @keyframes heroFrames{
    0%{opacity:1}
    23%{opacity:1}
    25%{opacity:0}
    98%{opacity:0}
    100%{opacity:1}
  }
}
.hero-simple .hero-inner{grid-template-columns:1fr}
.hero-simple h1{margin-bottom:8px}

/* ---------------- Hero 深色变体（首页首屏要"抓眼球"时用：块里写 tone:'dark' 即生效） ----------------
   浅色站里首屏用一块深色是常见做法 —— 第一眼有冲击力，往下仍然是浅色正文，节奏也有对比。 */
.hero--dark{background:linear-gradient(155deg,#080d18 0%,#111c33 52%,#16294a 100%);color:#fff;isolation:isolate}
.hero--dark::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(58% 52% at 80% 14%,rgba(47,107,255,.42),transparent 66%),
    radial-gradient(46% 40% at 10% 88%,rgba(0,194,184,.26),transparent 62%),
    radial-gradient(38% 34% at 52% 50%,rgba(124,92,255,.18),transparent 70%)}
.hero--dark h1{background:none;-webkit-text-fill-color:currentColor;color:#fff}
.hero--dark .hero-sub{color:rgba(255,255,255,.76)}
.hero--dark .hero-points li{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.18);color:#d7e3ff;box-shadow:none}
.hero--dark .hero-media{position:relative;background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);
  box-shadow:0 40px 90px rgba(0,0,0,.5)}
.hero--dark .btn-quiet{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.24);color:#fff}
.hero--dark .btn-quiet:hover{background:rgba(255,255,255,.19);color:#fff}
/* 深色首屏里给图片加一圈品牌光晕，避免"贴了一张图"的廉价感 */
.hero--dark .hero-media::after{content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08),inset 0 -60px 80px -40px rgba(0,0,0,.55)}

/* ---------------- 区块 ---------------- */
.block{padding:var(--space) 0}
.block-inner{max-width:860px}
.block-intro{color:var(--ink-2)}
.block:nth-of-type(even){background:linear-gradient(180deg,rgba(246,248,252,.85),rgba(246,248,252,.25))}
.definition-box{border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:var(--radius-lg);
  padding:28px 30px;background:rgba(255,255,255,.72);backdrop-filter:blur(12px) saturate(1.3);box-shadow:var(--shadow-sm)}
.definition-label{font-size:13px;letter-spacing:.14em;color:var(--brand-deep);text-transform:uppercase;font-weight:600;margin-bottom:10px}
.definition-text{font-size:17px;color:var(--ink)}
.definition-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin:22px 0 0}
.definition-facts dt{font-size:13px;color:var(--ink-3)}
.definition-facts dd{margin:3px 0 0;font-weight:600;font-size:17px}
.rich-text h2{margin-top:34px}
.rich-text h3{margin-top:26px}
.rich-text th,.rich-text td{border:1px solid var(--line);padding:10px 13px;text-align:left}

/* 玻璃拟态卡片族：统一给卡片加抬升与光边 */
.card,.feature-item,.faq-item,.contact-item,.gallery-item figure{
  background:rgba(255,255,255,.74);backdrop-filter:blur(13px) saturate(1.3);-webkit-backdrop-filter:blur(13px) saturate(1.3);
  border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);
  transition:transform .38s var(--ease),box-shadow .38s var(--ease),border-color .38s var(--ease)}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin-top:24px}
.feature-item{padding:24px}
.feature-item h3{font-size:17px}
.feature-item p{margin:0;color:var(--ink-2);font-size:15px}
.spec-table{width:100%;border-collapse:collapse}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:12px 15px;text-align:left;font-size:15px}
.spec-table th{width:32%;background:var(--brand-soft);font-weight:500;color:var(--brand-deep)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-top:26px}
.card{padding:22px;overflow:hidden}
.card h3{font-size:17px;margin-bottom:8px}
.card p{color:var(--ink-2);font-size:15px;margin-bottom:10px}
.card-media{aspect-ratio:4/3;overflow:hidden;background:var(--bg-2);margin:-22px -22px 18px}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.card:hover .card-media img{transform:scale(1.05)}
.tag{display:inline-block;font-size:12px;color:var(--brand-deep);background:var(--brand-soft);
  border:1px solid var(--brand-line);border-radius:999px;padding:3px 11px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}
.gallery-2{grid-template-columns:repeat(2,1fr)}
.gallery-4{grid-template-columns:repeat(4,1fr)}
.gallery-item{margin:0}
.gallery-item figure{margin:0;overflow:hidden}
.gallery-item img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;margin:0;transition:transform .6s var(--ease)}
.gallery-item:hover img{transform:scale(1.04)}
.gallery-cap{margin:0;padding:11px 15px;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line)}
.faq-list{margin-top:20px}
.faq-item{margin-bottom:12px;padding:18px 22px}
.faq-item summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item h3{display:inline;font-size:16px;margin:0;flex:1}
.faq-item summary::after{content:"+";color:var(--brand-deep);font-size:20px;line-height:1;
  width:26px;height:26px;border-radius:50%;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;
  transition:transform .3s var(--ease),background .3s}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);background:var(--brand);color:#fff}
.faq-answer{padding-top:14px;color:var(--ink-2);font-size:15px}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:20px;text-align:center}
.stat-item{padding:22px 14px;border-radius:var(--radius-lg);background:rgba(255,255,255,.7);
  border:1px solid var(--line);backdrop-filter:blur(12px);box-shadow:var(--shadow-sm)}
.stat-value{display:block;font-size:clamp(30px,3.4vw,42px);font-weight:700;letter-spacing:-.02em;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums}
.stat-label{font-size:14px;color:var(--ink-3)}
/* ---------------- 文章卡片网格（知识库 / 首页媒体中心共用） ----------------
   原先是「标题 + 日期」的纯文字列表 —— 一排灰字，看不出这是个内容板块。
   改成卡片网格后：有配图用配图，没配图用**品牌色几何封面**（不是灰块），
   每张卡自带分类标签、摘要与阅读时长，整块才有「内容栏目」的分量。 */
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap}
.block-more{font-size:15px;font-weight:500;color:var(--brand-deep);white-space:nowrap}
.block-more::after{content:" →"}
.article-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(292px,1fr));gap:24px;margin-top:26px;list-style:none;padding:0}
.article-card{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:#fff;
  box-shadow:var(--shadow-sm);transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s}
.article-card:hover{transform:translateY(-4px);border-color:var(--brand-line);box-shadow:0 18px 44px rgba(15,30,70,.12)}
.article-card-link{display:flex;flex-direction:column;height:100%;color:inherit}
.article-card-link:hover{text-decoration:none;color:inherit}
.article-cover{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--bg-2)}
.article-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.article-card:hover .article-cover img{transform:scale(1.05)}
/* 无配图时的封面：品牌色渐变 + 网格纹理 + 分类铭牌。
   按分类给不同色调（--cover-a/--cover-b），同分类色调一致、跨分类有变化 ——
   比"一个巨大的首字"看起来像设计，而不是像占位。 */
.article-cover--gen{position:relative;display:flex;align-items:center;justify-content:center;
  --cover-a:#1a6ef0;--cover-b:#0b3d99;
  background:linear-gradient(135deg,var(--cover-a),var(--cover-b))}
.article-cover--sky{--cover-a:#1a6ef0;--cover-b:#0b3d99}
.article-cover--indigo{--cover-a:#4b5bf5;--cover-b:#22237a}
.article-cover--teal{--cover-a:#0e9aa7;--cover-b:#0a4d63}
.article-cover--violet{--cover-a:#7b5cf0;--cover-b:#3a2a9c}
.article-cover--slate{--cover-a:#3c5b8c;--cover-b:#16233d}
.article-cover--gen::before{content:"";position:absolute;inset:0;
  background:radial-gradient(58% 58% at 78% 8%,rgba(255,255,255,.38),transparent 62%),
    radial-gradient(46% 46% at 8% 96%,rgba(255,255,255,.18),transparent 60%)}
.article-cover--gen::after{content:"";position:absolute;inset:0;opacity:.38;
  background-image:linear-gradient(rgba(255,255,255,.2) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.2) 1px,transparent 1px);
  background-size:30px 30px;
  -webkit-mask-image:radial-gradient(120% 100% at 50% 50%,#000 40%,transparent 100%);
  mask-image:radial-gradient(120% 100% at 50% 50%,#000 40%,transparent 100%)}
.article-cover--gen em{position:relative;font-style:normal;font-size:14px;font-weight:600;
  letter-spacing:.16em;color:#fff;padding:9px 18px;border-radius:999px;
  border:1px solid rgba(255,255,255,.46);background:rgba(255,255,255,.1);
  box-shadow:0 6px 22px rgba(0,0,0,.14)}
.article-body{display:flex;flex-direction:column;gap:9px;padding:18px 20px 20px;flex:1}
.article-body h3{font-size:17px;line-height:1.5;margin:0}
.article-body p{font-size:14.5px;line-height:1.74;color:var(--ink-2);margin:0}
.article-meta{margin-top:auto;padding-top:4px;font-size:13px;color:var(--ink-3);display:inline-flex;gap:8px;align-items:center}
.article-meta i{font-style:normal;opacity:.5}
.inquiry-form{display:grid;gap:15px;max-width:580px;margin-top:20px}
.inquiry-form label{display:grid;gap:7px;font-size:14px;color:var(--ink-2)}
.inquiry-form input,.inquiry-form textarea{border:1px solid var(--line);border-radius:12px;padding:12px 14px;
  font:inherit;font-size:15px;background:rgba(255,255,255,.85);transition:border-color .25s,box-shadow .25s}
.inquiry-form input:focus,.inquiry-form textarea:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-glow)}
.inquiry-form button{justify-self:start}
.form-hint{font-size:14px;color:var(--ink-3);min-height:20px}
.form-hint.ok{color:#12a06a}
.form-hint.fail{color:#d64545}

/* ---------------- CTA 与页脚 ---------------- */
.cta-band{position:relative;color:#fff;padding:56px 0;overflow:hidden;
  background:linear-gradient(120deg,var(--brand),var(--brand-deep))}
.cta-band::after{content:"";position:absolute;inset:-40% -10% auto auto;width:52%;height:180%;
  background:radial-gradient(closest-side,rgba(255,255,255,.28),transparent);pointer-events:none}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:26px;position:relative}
.cta-band h2{color:#fff;margin-bottom:6px}
.cta-band p{margin:0;opacity:.92}
.cta-band .btn-primary{background:#fff;color:var(--brand-deep);box-shadow:0 10px 26px rgba(0,0,0,.18)}
.site-footer{background:#0b1220;color:#b9c2d4;padding:56px 0 24px;font-size:15px;position:relative;overflow:hidden}
.site-footer::before{content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-glow),transparent)}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:12px}
.site-footer a{color:#b9c2d4}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.footer-brand{color:#fff;font-weight:600;margin-bottom:10px;font-size:17px}
.footer-col li{margin-bottom:9px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:14px;border-top:1px solid rgba(255,255,255,.09);margin-top:36px;padding-top:20px;font-size:13px}

/* ---------------- 轮播 ---------------- */
.wz-slider{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-2);box-shadow:var(--shadow-md)}
.wz-slider-track{position:relative;margin:0;padding:0;list-style:none}
.wz-slide{display:none}
.wz-slide.is-active{display:block}
@media (prefers-reduced-motion:no-preference){
  .wz-slide.is-active{animation:wz-fade .6s var(--ease)}
  @keyframes wz-fade{from{opacity:0}to{opacity:1}}
}
.wz-slide-img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}
.wz-slide-caption{position:absolute;left:0;right:0;bottom:0;padding:28px 30px;background:linear-gradient(180deg,rgba(11,18,32,0),rgba(11,18,32,.82))}
.wz-slide-caption h3{margin:0 0 6px;font-size:23px;color:#fff}
.wz-slide-caption p{margin:0 0 14px;font-size:15px;color:#e7ebf3;max-width:60ch}
.wz-slide:not(.has-image) .wz-slide-caption{position:static;background:var(--bg-2);padding:28px 30px}
.wz-slide:not(.has-image) .wz-slide-caption h3{color:var(--ink)}
.wz-slide:not(.has-image) .wz-slide-caption p{color:var(--ink-2)}
.wz-slider-nav{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border:0;border-radius:50%;
  background:rgba(255,255,255,.9);backdrop-filter:blur(8px);color:#111;font-size:22px;line-height:1;cursor:pointer;
  box-shadow:var(--shadow-md);transition:transform .25s var(--ease),background .25s}
.wz-slider-nav:hover{background:#fff;transform:translateY(-50%) scale(1.06)}
.wz-slider-nav.prev{left:16px}
.wz-slider-nav.next{right:16px}
.wz-slider-dots{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);display:flex;gap:8px}
.wz-dot{width:8px;height:8px;padding:0;border:0;border-radius:50%;background:rgba(255,255,255,.55);cursor:pointer;transition:width .25s var(--ease),background .25s}
.wz-dot.is-active{width:22px;border-radius:999px;background:#fff}
.wz-slider.is-single .wz-slider-nav,.wz-slider.is-single .wz-slider-dots{display:none}

/* ---------------- 图文 / 分隔 / 联系方式 ---------------- */
.it-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.block-imagetext.layout-right .it-media{order:2}
.it-media figure{margin:0}
.it-media img{display:block;width:100%;height:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}
.it-media figcaption{margin-top:10px;font-size:13px;color:var(--ink-3)}
.it-copy .rich-text{margin-bottom:16px}
.block-divider{padding:0}
.block-divider .wrap{padding-top:0;padding-bottom:0}
.block-divider.divider-s{padding:18px 0}
.block-divider.divider-m{padding:36px 0}
.block-divider.divider-l{padding:70px 0}
.block-divider hr{border:0;border-top:1px solid var(--line);margin:0}
.contact-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(224px,1fr));gap:18px;margin-top:22px}
.contact-item{padding:18px 20px}
.contact-item dt{font-size:13px;color:var(--ink-3);margin-bottom:6px}
.contact-item dd{margin:0;font-size:16px;color:var(--ink);word-break:break-all}

/* ---------------- 页头电话（原站把电话直接放在页头，访客一眼就能拨） ---------------- */
.header-tel{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--brand-deep);
  padding:7px 14px;border-radius:999px;background:rgba(47,107,255,.07);border:1px solid var(--brand-line);
  transition:background .25s var(--ease),transform .25s var(--ease)}
.header-tel:hover{background:rgba(47,107,255,.14);color:var(--brand-deep);text-decoration:none;transform:translateY(-1px)}
.header-tel svg{flex:none}

/* ---------------- Hero：主 CTA + 次级入口 ---------------- */
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:26px}
.btn-quiet{background:rgba(255,255,255,.78);border:1px solid var(--line);color:var(--ink);box-shadow:var(--shadow-sm)}
.btn-quiet:hover{color:var(--brand-deep);border-color:var(--brand-line);text-decoration:none;transform:translateY(-2px)}

/* ---------------- 右侧快捷联系（电话 / 微信 / 留言 / 回顶部） ---------------- */
.contact-dock{position:fixed;right:18px;bottom:26px;z-index:60;display:flex;flex-direction:column;gap:10px}
.dock-btn{position:relative;width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;color:#fff;
  display:flex;align-items:center;justify-content:center;box-shadow:0 8px 22px rgba(13,20,36,.20);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.dock-btn:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 14px 30px rgba(13,20,36,.26);color:#fff;text-decoration:none}
.dock-tel{background:linear-gradient(135deg,var(--brand),var(--brand-deep))}
.dock-wx{background:linear-gradient(135deg,#2ec36b,#12a457)}
.dock-msg{background:linear-gradient(135deg,#ffa726,#f5870f)}
.dock-top{background:rgba(13,20,36,.68);backdrop-filter:blur(10px)}
.dock-btn::after{content:attr(data-tip);position:absolute;right:58px;top:50%;
  transform:translateY(-50%) translateX(6px);white-space:nowrap;background:rgba(13,20,36,.92);color:#fff;
  font-size:13px;line-height:1;padding:8px 12px;border-radius:9px;opacity:0;pointer-events:none;
  transition:opacity .22s var(--ease),transform .22s var(--ease)}
.dock-btn:hover::after{opacity:1;transform:translateY(-50%) translateX(0)}
.dock-btn[hidden]{display:none}


/* ---------------- 滚动进场（由 theme.js 挂 data-reveal；无 JS 时内容照常可见） ---------------- */
@media (prefers-reduced-motion:no-preference){
  [data-reveal]{opacity:0;transform:translateY(22px);
    transition:opacity .8s var(--ease),transform .8s var(--ease)}
  [data-reveal].is-in{opacity:1;transform:none}
  [data-reveal="d1"]{transition-delay:.07s}
  [data-reveal="d2"]{transition-delay:.14s}
  [data-reveal="d3"]{transition-delay:.21s}
}

/* ---------------- 响应式 ---------------- */
@media (max-width:900px){
  :root{--space:56px}
  .hero{padding:60px 0 48px}
  .hero-inner,.footer-grid{grid-template-columns:1fr;gap:30px}
  .hero-media{transform:none}
  .site-nav{display:none}
  .site-nav.open{display:flex;flex-direction:column;position:absolute;left:0;right:0;top:68px;
    background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:18px 22px;gap:14px}
  .nav-toggle{display:block;background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:10px;padding:8px 15px;font:inherit;font-size:14px;cursor:pointer}
  .header-cta{display:none}
  /* 手机上页头放不下电话 → 收起，改由右下角悬浮按钮承担联系入口 */
  .header-tel{display:none}
  .contact-dock{right:12px;bottom:16px;gap:8px}
  .dock-btn{width:42px;height:42px}
  .dock-btn::after{display:none}
  h1{font-size:28px}h2{font-size:22px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .it-grid{grid-template-columns:1fr;gap:22px}
  .block-imagetext.layout-right .it-media{order:0}
  .wz-slide-caption{padding:18px}
  .wz-slide-caption h3{font-size:19px}
  .gallery,.gallery-2,.gallery-4{grid-template-columns:1fr}
  .card-grid,.feature-grid,.stat-grid,.contact-list{grid-template-columns:1fr}
}

/* ---------------- 无障碍：系统开启「减少动态效果」时全部停用 ---------------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  body::before{animation:none}
  *,*::before,*::after{animation:none!important;transition:none!important}
  [data-reveal]{opacity:1!important;transform:none!important}
}



/* =========================================================================
   实景 VR 展示 · 首屏动态图 · 文章分类 kicker（7 套主题共用同一份实现）
   ★ 主题只决定"长什么样"，但区块**没有样式就等于不可用** —— 例如 .block-vr 少了
     aspect-ratio，内嵌的 iframe 高度会塌成 0，客户什么也看不到。所以这套能力在每套
     主题里都保留同一份实现，并通过主题令牌（--space / --radius-lg / --brand* / --ease）
     自然融入各自的风格。
   ★ 选择器必须带 .block / .hero 前缀：主题里 `.block:nth-of-type(even)` 会给偶数区块
     加浅色底，优先级（0,2,0）高于单独的 `.block-vr`（0,1,0），会把深色底整个盖掉
     —— 表现是「白色标题压在白底上几乎看不见」（实测踩过一次）。
   ========================================================================= */

/* ---- 实景 VR 案例区块 ---- */
.block.block-vr{background:linear-gradient(158deg,#070c17 0%,#101c33 55%,#16294a 100%);color:#fff;
  padding:var(--space,80px) 0;position:relative;isolation:isolate;overflow:hidden}
.block.block-vr::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(54% 46% at 84% 6%,rgba(47,107,255,.34),transparent 64%),
    radial-gradient(42% 38% at 6% 92%,rgba(0,194,184,.2),transparent 62%)}
.vr-wrap{max-width:1320px;margin:0 auto;padding:0 22px}
.vr-head{max-width:820px;margin:0 auto 30px;text-align:center}
.vr-title{font-size:34px;line-height:1.3;color:#fff;margin-bottom:12px}
.vr-scene{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.14em;color:#cfe0ff;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:999px;
  padding:5px 15px;margin-bottom:16px}
.vr-intro{font-size:17px;line-height:1.8;color:rgba(255,255,255,.78);margin:0}
.vr-facts{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:20px 0 0;padding:0;list-style:none}
.vr-facts li{font-size:14px;color:#d7e3ff;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:6px 15px}
.vr-stage{position:relative;aspect-ratio:var(--vr-ratio,16/9);border-radius:var(--radius-lg,18px);overflow:hidden;
  background:#0a1020;border:1px solid rgba(255,255,255,.12);box-shadow:0 40px 90px rgba(0,0,0,.5)}
.vr-frame{position:absolute;inset:0;width:100%;height:100%;border:0;z-index:1;background:#0a1020}
.vr-poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:2;
  transition:opacity .9s var(--ease,cubic-bezier(.2,.7,.2,1))}
.vr-veil{position:absolute;inset:0;z-index:3;display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:14px;background:rgba(7,12,23,.28);transition:opacity .6s var(--ease,cubic-bezier(.2,.7,.2,1))}
.vr-veil-text{font-size:14px;color:rgba(255,255,255,.82);letter-spacing:.04em}
.vr-spin{width:30px;height:30px;border-radius:50%;border:2px solid rgba(255,255,255,.25);
  border-top-color:#fff;animation:vrspin 1s linear infinite}
@keyframes vrspin{to{transform:rotate(360deg)}}
/* 就绪：封面与加载层一起淡出，露出可操作的三维画面 */
.vr-stage.is-ready .vr-poster,.vr-stage.is-ready .vr-veil{opacity:0;pointer-events:none}
/* 手机端不做嵌入（宿主平台拒绝在 iframe 内播放）⇒ 封面常驻，不再显示"载入中" */
.vr-stage.is-noembed .vr-veil{display:none}
.vr-noscript{position:absolute;inset:0;z-index:4;display:flex;align-items:center;justify-content:center;
  background:rgba(7,12,23,.72)}
.vr-foot{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;margin-top:24px;text-align:center}
.vr-open-name{opacity:.82;margin-left:4px}
.vr-note{font-size:14px;color:rgba(255,255,255,.6);margin:0;width:100%}
@media (max-width:900px){
  .vr-wrap{padding:0 16px}
  .vr-title{font-size:23px}
  .vr-head{margin-bottom:22px}
  .vr-intro{font-size:15.5px}
  .vr-stage{border-radius:var(--radius,12px);aspect-ratio:4/3}
  .vr-foot{gap:10px;margin-top:18px}
}

/* ---- 首屏「动态图」：同场景 2–6 张图交叉淡入 ----
   基础态让第 1 张可见、其余透明：动画被停用（prefers-reduced-motion）或旧浏览器上
   看到的是一张完整的图，而不是一片空白。 */
.hero-media--anim{position:relative}
.hero-media--anim img{position:absolute;inset:0;opacity:0}
.hero-media--anim img:first-child{opacity:1}
@media (prefers-reduced-motion:no-preference){
  .hero-media--anim img{animation:heroFrames 24s var(--ease,cubic-bezier(.2,.7,.2,1)) infinite}
  .hero-media--anim img:nth-child(2){animation-delay:6s}
  .hero-media--anim img:nth-child(3){animation-delay:12s}
  .hero-media--anim img:nth-child(4){animation-delay:18s}
  .hero-media--anim img:nth-child(5){animation-delay:24s}
  .hero-media--anim img:nth-child(6){animation-delay:30s}
  @keyframes heroFrames{0%{opacity:1}23%{opacity:1}25%{opacity:0}98%{opacity:0}100%{opacity:1}}
}

/* ---- 首屏背景视频：满屏大 3D 动态视频（参照复刻站首屏的做法） ----
   视频用 object-fit:cover 铺满，上面压一层由深到浅的遮罩 —— 文案要压在动态画面上还读得清，
   全靠这一层。视频模式下把深色首屏原有的光斑关掉（叠在视频上会显脏）。 */
.hero--video{position:relative;overflow:hidden;isolation:isolate;display:flex;align-items:center;
  min-height:min(88svh,820px);padding:112px 0 96px;background:#070c17;
  /* 封面图同时用作区块底图：视频没加载出来、或下面「减少动态效果」把视频关掉时，画面不塌 */
  background-image:var(--hero-poster,none);background-size:cover;background-position:center;background-repeat:no-repeat}
.hero--video.hero--video-compact{min-height:0;padding:88px 0 72px}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;
  background:#070c17;pointer-events:none}
.hero-scrim{position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,12,23,.6) 0%,rgba(7,12,23,.48) 46%,rgba(7,12,23,.74) 100%)}
.hero--overlay-soft .hero-scrim{background:linear-gradient(180deg,rgba(7,12,23,.30),rgba(7,12,23,.42))}
.hero--overlay-strong .hero-scrim{background:linear-gradient(180deg,rgba(7,12,23,.76),rgba(7,12,23,.68))}
.hero--video::before{display:none}
.hero--video .hero-inner{grid-template-columns:1fr;justify-items:center;text-align:center}
/* ★ 满屏视频首屏的标题收小一档：视频才是主角，标题不该占掉半屏（普通 hero 仍用全局 h1 字号） */
.hero--video h1{font-size:clamp(28px,3.6vw,44px)}
/* ★ 视频首屏的遮罩是最淡档，正文要比普通深色首屏更亮，否则压不住亮画面。
   选择器写 .hero.hero--video（0,3,0）才能压过后面的 .hero--dark .hero-sub（0,2,0）。 */
.hero.hero--video .hero-sub{color:rgba(255,255,255,.92)}
/* ★ 遮罩调淡后，可读性靠"文字投影"而不是"加深遮罩"：投影只压字周围一小圈，不牺牲整幅画面的亮度 */
.hero.hero--video h1{text-shadow:0 2px 22px rgba(0,6,18,.6),0 1px 4px rgba(0,6,18,.45)}
.hero.hero--video .hero-sub{text-shadow:0 1px 16px rgba(0,6,18,.66)}
.hero.hero--video .hero-points li{color:rgba(255,255,255,.86)}
.hero--video .hero-copy{max-width:940px}
.hero--video .hero-sub{margin-left:auto;margin-right:auto}
.hero--video .hero-points,.hero--video .hero-actions{justify-content:center}
@media (max-width:900px){
  .hero--video{min-height:min(64svh,460px);padding:86px 0 64px}
  .hero--video .hero-inner{justify-items:start;text-align:left}
  .hero--video .hero-points,.hero--video .hero-actions{justify-content:flex-start}
  /* ★ 手机端**不再单独加强遮罩**：文案砍短后（标题 + 一行 + 一个按钮），
     加强遮罩只会让手机比桌面更暗 —— 用户明确要求"手机要达到桌面那种通透度"。
     现在两端同用后台选定的档位（soft = .30/.42），可读性由文字投影兜底。 */
  .hero--video h1{font-size:clamp(24px,6.2vw,30px)}
}
/* 无障碍：系统开了「减少动态效果」就停掉背景视频，改用封面静态图（区块底图已备好） */
@media (prefers-reduced-motion:reduce){
  .hero--video .hero-bg{display:none}
}

/* ---- 文章首屏的分类 kicker（标题上方的小标签，编辑排版的经典做法） ---- */
.hero-kicker{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;letter-spacing:.1em;
  color:var(--brand-deep,#1b4fd0);background:var(--brand-soft,#eef4ff);border:1px solid var(--brand-line,#cfe0ff);
  border-radius:999px;padding:5px 14px;margin-bottom:16px}
.hero--dark .hero-kicker{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2);color:#cfe0ff}

/* ==========================================================================
   联系方式：微信二维码弹层 + 电话弹层 + 四个入口的样式
   ★ 弹层只有一份 DOM（partials/contact-modal.html），入口靠 `data-open`
     触发 —— 所以这里只需要一套 .cm-* 样式，别按入口各写一遍。
   ========================================================================== */
html.cm-locked{overflow:hidden}

.link-btn{background:none;border:0;padding:0;font:inherit;color:var(--brand-deep);cursor:pointer;
  border-bottom:1px dashed var(--brand-line);text-align:left}
.link-btn:hover{color:var(--brand);border-bottom-color:var(--brand)}

/* ---- 页脚：二维码缩略图 + 微信号 ---- */
.footer-qr{display:grid;gap:8px;justify-items:center;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:10px;cursor:pointer;transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.footer-qr:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.footer-qr img{display:block;width:118px;height:118px;object-fit:contain;border-radius:8px}
.footer-qr-hint{font-size:12px;color:var(--ink-3)}
.footer-wxid{margin-top:8px;font-size:13px}

/* ---- 联系页：快捷联系条 ---- */
.contact-quick{display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:22px;padding:18px 22px;
  background:rgba(255,255,255,.8);border:1px solid var(--line);border-radius:var(--radius-lg)}
.cq-item{display:flex;align-items:baseline;gap:10px}
.cq-label{font-size:13px;color:var(--ink-3)}
.cq-value{font-size:17px;font-weight:600}

/* ---- 询盘表单：左表右快捷联系 ---- */
.form-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:34px;align-items:start;margin-top:20px}
.form-layout .inquiry-form{max-width:none;margin-top:0}
.form-aside{display:grid;gap:14px;justify-items:stretch;background:rgba(255,255,255,.82);
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px}
.fa-title{margin:0;font-size:16px;font-weight:600;color:var(--ink)}
.fa-wx{display:grid;gap:8px;justify-items:center;background:#fff;border:1px solid var(--brand-line);
  border-radius:var(--radius);padding:14px;cursor:pointer;transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.fa-wx:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.fa-wx img{display:block;width:120px;height:120px;object-fit:contain;border-radius:8px}
.fa-wx span{font-size:13px;color:var(--ink-3)}
.fa-wx-text{font-size:15px;font-weight:600;color:var(--ink)}
.fa-tel{justify-self:stretch;justify-content:center}
.fa-note{margin:0;font-size:13px;color:var(--ink-3)}

/* ---- 弹层本体 ---- */
.contact-modal{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:24px}
.contact-modal[hidden]{display:none}
.cm-mask{position:absolute;inset:0;background:rgba(8,13,24,.56);backdrop-filter:blur(4px)}
.cm-box{position:relative;width:min(360px,100%);background:#fff;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);padding:28px 26px 24px;text-align:center;
  animation:cmIn .26s var(--ease)}
@keyframes cmIn{from{opacity:0;transform:translateY(12px) scale(.97)}to{opacity:1;transform:none}}
.cm-x{position:absolute;top:10px;right:12px;width:34px;height:34px;border:0;border-radius:50%;
  background:var(--bg-2);color:var(--ink-2);font-size:20px;line-height:1;cursor:pointer}
.cm-x:hover{background:var(--line-2);color:var(--ink)}
.cm-pane[hidden]{display:none}
.cm-kicker{margin:0 0 16px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--brand-deep);
  background:var(--brand-soft);border:1px solid var(--brand-line);border-radius:999px;padding:5px 14px;display:inline-block}
.cm-qr{display:block;width:230px;height:230px;object-fit:contain;margin:0 auto 14px;border-radius:12px;
  border:1px solid var(--line);background:#fff}
.cm-id{margin:0 0 10px;font-size:14px;color:var(--ink-2)}
.cm-id b{color:var(--ink)}
.cm-num{margin:6px 0 18px;font-size:26px;font-weight:700;color:var(--ink);
  letter-spacing:.02em;word-break:break-all;font-variant-numeric:tabular-nums}
.cm-btns{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.cm-copy{display:inline-block;margin:0 auto;background:var(--bg-2);border:1px solid var(--line);
  border-radius:999px;padding:8px 18px;font:inherit;font-size:14px;color:var(--ink-2);cursor:pointer}
.cm-copy:hover{border-color:var(--brand-line);color:var(--brand-deep)}
.cm-tip{margin:16px 0 0;font-size:13px;color:var(--ink-3);line-height:1.6}

@media (max-width:900px){
  .form-layout{grid-template-columns:1fr;gap:22px}
  .contact-quick{gap:12px 22px;padding:16px 18px}
  .cm-box{width:100%;max-width:340px;padding:24px 20px 20px}
  .cm-qr{width:200px;height:200px}
  .cm-num{font-size:23px}
  .footer-qr img{width:104px;height:104px}
}