/* =========================================================
   智域3D 官网 · 设计系统 (light / de-AI)
   - 冷浅灰白底 + 钢蓝信号色 + 工程网格科技感
   - 禁用：紫蓝辉光 / 青绿渐变 / 满屏玻璃拟态 / 抽象发光球
   ========================================================= */

/* ---------------------------------------------------------
   字体：全本地，零外链（原 Google Fonts 外链已移除）
   - Inter 可变字体 latin 子集 47KB，覆盖 100-900 全字重
   - 中文不加载 webfont，走系统原生（苹方/微软雅黑）
     原因：Noto Sans SC 全量 404 个分片、数十 MB；若做子集化，
     日后新增文案会缺字回退导致混排不一致。系统中文字体永不缺字。
   --------------------------------------------------------- */
@font-face{
  font-family:'Inter';
  font-style:normal;
  font-weight:100 900;
  font-display:swap;
  src:url('../fonts/inter-latin-var.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}

:root{
  --paper:#EDF1F6;        /* 主背景 冷浅灰白 */
  --surface:#FFFFFF;      /* 卡片/面板 */
  --surface-2:#F4F7FA;    /* 次背景 微冷白 */
  --ink:#0F141B;          /* 主文字/标题 近黑带蓝 */
  --ink-2:#2A323D;        /* 次级文字 */
  --muted:#65717E;        /* 辅助文字 */
  --line:#DBE2EA;         /* 边框 冷灰 */
  --line-strong:#C2CCD8;  /* 强边框 */
  --signal:#1565B0;       /* 信号色 钢蓝（科技·冷调·去紫去青绿） */
  --signal-dark:#0E4B85;   /* 信号色 hover */
  --signal-soft:#E7F0F8;   /* 信号色浅底 冷浅蓝 */
  --ok:#2E7A57;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:22px;
  --maxw:1920px;       /* 宽幅：画廊左右架构贴左右边缘、中间留白随屏缩放（2026-08-10 还原，恢复"最左最右固定，中间缩放"） */
  --shadow:0 1px 2px rgba(15,20,27,.05), 0 10px 30px rgba(15,20,27,.06);
  --shadow-sm:0 1px 3px rgba(15,20,27,.06);
  /* 中英混排逐字回退：拉丁走 Inter，中文自动落到系统原生黑体 */
  --font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-sans);font-size:16px;line-height:1.72;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.22;letter-spacing:-.01em;color:var(--ink)}
h1{font-size:clamp(30px,4vw,42px);letter-spacing:-.025em}  /* 42px 在 2 栏 hero（首行 12 字）刚好容纳 1 行；避免 56px 时「据」孤儿换行 */
h2{font-size:clamp(30px,4.2vw,46px);line-height:1.18}
h3{font-size:20px}
p{margin:0 0 1em;color:var(--ink-2)}
p.lead{font-size:clamp(17px,2vw,20px);line-height:1.6;color:var(--muted)}

/* 布局 */
.container{max-width:var(--maxw);margin:0 auto;padding:0 clamp(24px,4vw,64px)}
section{padding:64px 0}  /* 已从 92px 收紧；2 段 section 间距 128px，去掉「空气断层」 */
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin:0 0 40px}  /* 释放宽度给 h2 单行；正文 lead 仍受 680px 约束保持可读 */
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head p.lead{max-width:680px;margin-top:16px}  /* h2 单行后，lead 单独约束读宽 */

/* 跳过导航 (a11y) */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:100}
.skip-link:focus{left:12px;top:12px}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* 小标签 */
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-family:var(--font-mono);font-size:14.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--signal);margin-bottom:16px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--signal)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:var(--radius-sm);font-weight:600;font-size:15px;cursor:pointer;border:1px solid transparent;transition:all .18s ease;font-family:inherit}
.btn-primary{background:var(--signal);color:#fff}
.btn-primary:hover{background:var(--signal-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--ink);background:var(--surface)}
.btn-sm{padding:9px 16px;font-size:14px}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:60;background:rgba(237,241,246,.88);backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:32px;height:70px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px;letter-spacing:-.02em;justify-self:start}
.nav-links{display:flex;gap:clamp(20px,3vw,48px);align-items:center;justify-content:flex-end;min-width:0}
.nav-links a{font-size:15px;color:var(--ink-2);font-weight:500;padding:6px 2px;position:relative;transition:color .15s}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--signal)}
.nav-actions{display:flex;align-items:center;gap:12px;justify-self:end;flex-shrink:0}
.nav-toggle{display:none;flex-direction:column;gap:4px;width:42px;height:38px;border:1px solid var(--line-strong);border-radius:8px;background:transparent;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span{width:18px;height:2px;background:var(--ink);display:block}
.mobile-menu{display:none;border-top:1px solid var(--line);background:var(--paper)}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:15px 24px;border-bottom:1px solid var(--line);color:var(--ink-2);font-weight:500}
.mobile-menu a.active{color:var(--signal)}
.mobile-menu a.mobile-cta{display:block;margin:14px 18px;padding:12px 18px;text-align:center;color:#fff;background:var(--signal);border-radius:10px;font-weight:600;border:none;letter-spacing:.04em}

/* ===== Hero（浅底 + 自驱动扫描动效） ===== */
.hero{position:relative;padding:64px 0;overflow:hidden}  /* 上下等高，与 section 节奏统一 */
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:44px 44px;opacity:.6;pointer-events:none;z-index:0;-webkit-mask-image:linear-gradient(180deg,transparent,#000 30%,#000 70%,transparent);mask-image:linear-gradient(180deg,transparent,#000 30%,#000 70%,transparent)}
.hero .container{position:relative;z-index:1}
/* 1:1 双栏，左文右器物；间隙 48；align-items:center 让左栏文字相对器物垂直居中 */
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero h1{margin-bottom:20px}
.hero .lead{margin-bottom:30px;max-width:30em}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-meta{margin-top:30px;display:flex;gap:32px;flex-wrap:wrap}
.hero-meta .stat .num{font-family:var(--font-mono);font-size:26px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.hero-meta .stat .lbl{font-size:13px;color:var(--muted)}

/* 扫描展台：填满右栏、居中；随屏宽自适应，封顶 560 保不撑爆 */
.scan-stage{position:relative;width:100%;max-width:min(100%,560px);aspect-ratio:1/1;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.scan-stage .grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:32px 32px;opacity:.5}
.scan-object{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.scan-object svg{width:62%;height:62%}
.scan-line{position:absolute;left:6%;right:6%;height:2px;top:6%;background:linear-gradient(90deg,transparent,var(--signal),transparent);animation:scan-sweep 3.6s cubic-bezier(.45,0,.55,1) infinite}
.reticle{position:absolute;width:64px;height:64px;border:2px solid var(--signal);border-radius:50%;top:50%;left:50%;transform:translate(-50%,-50%);z-index:4;animation:reticle-pulse 2.8s ease-in-out infinite}
.reticle::before,.reticle::after{content:"";position:absolute;background:var(--signal)}
.reticle::before{left:50%;top:-12px;bottom:-12px;width:1px;transform:translateX(-50%)}
.reticle::after{top:50%;left:-12px;right:-12px;height:1px;transform:translateY(-50%)}
.scan-tag{position:absolute;left:16px;bottom:16px;font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--ink-2);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:6px 12px;display:inline-flex;gap:8px;align-items:center}
.scan-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--signal);animation:blink 1.6s ease-in-out infinite}
@keyframes scan-sweep{0%{top:8%}50%{top:90%}100%{top:8%}}
@keyframes reticle-pulse{0%,100%{transform:translate(-50%,-50%) scale(1);opacity:.45}50%{transform:translate(-50%,-50%) scale(1.14);opacity:1}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}

/* ===== 卡片通用 ===== */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:border-color .18s,transform .18s,box-shadow .18s}
.card:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:var(--shadow)}

/* 能力卡 */
.cap-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.cap-card .cap-ico{width:46px;height:46px;border-radius:11px;background:var(--signal-soft);color:var(--signal);display:flex;align-items:center;justify-content:center;margin-bottom:18px;font-weight:800;font-size:18px}
.cap-card .cap-ico svg{width:24px;height:24px;display:block}
.cap-card h3{margin-bottom:8px}
.cap-card p{font-size:14.5px;line-height:1.65;margin:0;color:var(--muted)}  /* 行距 1.65，长描述更易读 */

/* ===== 可交互全景（占位） ===== */
.pano{position:relative;width:100%;height:420px;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--surface-2);cursor:grab;user-select:none;touch-action:pan-y}
.pano:active{cursor:grabbing}
.pano-track{position:absolute;top:0;left:0;height:100%;width:240%;display:flex;will-change:transform}
.pano-frame{flex:none;width:100%;height:100%;position:relative;display:flex;align-items:flex-end;padding:26px;color:#fff}
.pano-frame.f1{background:linear-gradient(160deg,#aab6c4 0%,#cdd7e1 38%,#8b97a6 70%,#6c7888 100%)}
.pano-frame.f2{background:linear-gradient(160deg,#9fabb9 0%,#c6d0db 40%,#828e9d 100%)}
.pano-frame .ph-label{background:rgba(23,25,29,.62);backdrop-filter:blur(4px);padding:10px 16px;border-radius:10px;font-size:14px;font-weight:600;letter-spacing:.02em}
.pano-frame .ph-label small{display:block;font-weight:400;opacity:.8;font-size:12px}
.pano-hotspot{position:absolute;top:42%;width:18px;height:18px;border-radius:50%;background:var(--signal);border:3px solid #fff;box-shadow:0 2px 8px rgba(0,0,0,.3);cursor:pointer;transform:translate(-50%,-50%)}
.pano-hotspot::after{content:attr(data-tip);position:absolute;left:50%;bottom:26px;transform:translateX(-50%);white-space:nowrap;background:var(--ink);color:#fff;font-size:12px;padding:5px 10px;border-radius:6px;opacity:0;pointer-events:none;transition:opacity .15s}
.pano-hotspot:hover::after{opacity:1}
.pano-hint{position:absolute;right:16px;top:16px;background:rgba(23,25,29,.6);color:#fff;font-size:12.5px;padding:7px 13px;border-radius:999px;display:inline-flex;gap:7px;align-items:center;pointer-events:none}
.pano-dots{display:flex;gap:8px;justify-content:center;margin-top:18px}
.pano-dots button{width:9px;height:9px;border-radius:50%;border:none;background:var(--line-strong);cursor:pointer;padding:0}
.pano-dots button.active{background:var(--signal)}

/* ===== 扫描成果画廊（占位） ===== */
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scan-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);transition:border-color .18s,transform .18s,box-shadow .18s}
.scan-card:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:var(--shadow)}
.scan-thumb{aspect-ratio:4/3;background:var(--surface-2);position:relative;overflow:hidden}
/* 迷你 3D 缩略卡：pc 容器变为 canvas 容器；产品区纯净、无遮罩、产品居中 */
/* 注意：容器同时带 .p720-canvas 类，会被通用 .p720-canvas{height:520px} 强制成 520px，
   破坏 4/3 自适应——此处用更高优先级锁定 100% 充满 4/3 容器。*/
.scan-thumb--mini .pc{position:absolute;inset:0;height:100%!important;width:100%!important;pointer-events:none}
.scan-thumb--mini .pc canvas{display:block;width:100%!important;height:100%!important}
/* 去掉迷你卡产品区的四角 L 形装饰（!important 防下方 HUD 通用规则覆盖） */
.scan-thumb--mini::before,
.scan-thumb--mini::after{content:none!important;border:none!important}
/* badge 移出产品区，仅作介绍区类目标签，不再压住产品 */
.scan-thumb .badge{display:inline-block;background:var(--surface);border:1px solid var(--line);font-size:11px;font-weight:600;color:var(--ink-2);padding:3px 9px;border-radius:999px;margin-bottom:8px}
.scan-body{padding:16px 18px 18px}
.scan-body h4{font-size:15.5px;margin-bottom:6px}
.scan-body .meta{font-size:12.5px;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap}
.scan-body .meta b{color:var(--ink-2);font-weight:700}

/* ===== 单品 720° 看物（嵌入首页扫描成果画廊） ===== */
.p720-block{margin:8px 0 36px}
.p720-stage{position:relative;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:radial-gradient(125% 90% at 50% 16%, #f6f9fc 0%, #eef2f7 48%, #e2e9f1 100%)}
.p720-stage::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(21,101,176,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(21,101,176,.07) 1px,transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:linear-gradient(to bottom,transparent,#000 22%,#000 78%,transparent);
          mask-image:linear-gradient(to bottom,transparent,#000 22%,#000 78%,transparent)}
.p720-stage::after{content:"";position:absolute;left:8%;right:8%;bottom:14%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(21,101,176,.22),transparent);pointer-events:none}
.p720-canvas{position:relative;height:520px;width:100%}
.p720-canvas canvas{display:block}
.p720-bar{display:flex;align-items:center;gap:10px;margin-top:14px;flex-wrap:wrap}
.p720-btn .dot{width:8px;height:8px;border-radius:50%;background:currentColor;opacity:.55}
.p720-btn.off .dot{background:var(--muted);opacity:.5}
.p720-meta{margin-left:auto;font-family:var(--font-mono);font-size:11px;color:var(--muted)}

/* ===== 案例 / 列表 ===== */
.case-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:20px}
.case-card{flex:1 1 300px;max-width:360px}
.case-card .case-thumb{aspect-ratio:16/10;background:linear-gradient(135deg,var(--surface-2),var(--signal-soft));border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--signal);font-weight:700;letter-spacing:.04em}
.case-card .case-body{padding:18px 20px}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.tag{font-size:12px;color:var(--ink-2);background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:4px 11px}

/* ===== 能力矩阵表格（首页 / 产品页共用） ===== */
.table-wrap{padding:0;overflow:hidden}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.matrix-table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:640px}
.matrix-table thead{background:var(--surface-2);text-align:left}
.matrix-table th{padding:14px 18px;border-bottom:1px solid var(--line);font-weight:700;color:var(--ink);white-space:nowrap}
.matrix-table td{padding:13px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top}
.matrix-table tbody tr:last-child td{border-bottom:0}
.matrix-table td:first-child{font-weight:600;color:var(--ink);white-space:nowrap}

/* ===== 流程步骤（合作方式） ===== */
.step-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;counter-reset:step}
.step-card .step-no{display:inline-block;margin-bottom:10px;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--muted)}
.step-card .cap-ico{margin-bottom:14px}

/* ===== 关于 / 数据 ===== */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-box{text-align:left;padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.stat-box .num{font-size:32px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.stat-box .lbl{font-size:13.5px;color:var(--muted);margin-top:4px}
.timeline{display:grid;gap:0;border-left:2px solid var(--line);margin-left:8px}
.timeline li{padding:0 0 26px 26px;position:relative}
.timeline li::before{content:"";position:absolute;left:-7px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--signal);border:3px solid var(--paper)}
.timeline .yr{font-weight:700;color:var(--ink)}

/* ===== 新闻 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);transition:border-color .18s,box-shadow .18s}
.news-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow)}
.news-thumb{aspect-ratio:16/9;background:linear-gradient(135deg,var(--surface-2),var(--signal-soft))}
.news-body{padding:18px 20px 22px}
.news-body .date{font-family:var(--font-mono);font-size:12.5px;color:var(--signal);font-weight:700;letter-spacing:.03em}
.news-body h3{font-size:17px;margin:8px 0 8px}
.news-body p{font-size:14px;color:var(--muted);margin:0}

/* ===== 表单 ===== */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.field input,.field textarea,.field select{font-family:inherit;font-size:15px;color:var(--ink);background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--radius-sm);padding:12px 14px;transition:border-color .15s,box-shadow .15s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--signal);box-shadow:0 0 0 3px var(--signal-soft)}
.field textarea{min-height:120px;resize:vertical}
.form-note{font-size:13px;color:var(--muted)}
.toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:14px 22px;border-radius:12px;font-size:14.5px;font-weight:500;opacity:0;pointer-events:none;transition:all .25s;z-index:200;box-shadow:var(--shadow)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:#cfd2d6;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:44px}
.site-footer .brand{color:#fff;margin-bottom:16px}
.site-footer p{color:#a7abb1;font-size:14px}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.04em;margin-bottom:16px;text-transform:uppercase}
.footer-col a{display:block;color:#b9bdc3;font-size:14px;padding:6px 0;transition:color .15s}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8b8f96}
.footer-bottom a{color:#a7abb1}
.footer-bottom a:hover{color:#fff}

/* ===== 科技感增强：HUD / 角标 / 芯片 / 斜切按钮 ===== */
.scan-stage,.pano,.scan-thumb,.case-thumb,.news-thumb{position:relative}
.scan-stage::before,.scan-stage::after,
.pano::before,.pano::after,
.scan-thumb::before,.scan-thumb::after,
.case-thumb::before,.case-thumb::after,
.news-thumb::before,.news-thumb::after{content:"";position:absolute;width:18px;height:18px;pointer-events:none;z-index:4}
.scan-stage::before,.pano::before,.scan-thumb::before,.case-thumb::before,.news-thumb::before{top:14px;left:14px;border-top:2px solid var(--signal);border-left:2px solid var(--signal)}
.scan-stage::after,.pano::after,.scan-thumb::after,.case-thumb::after,.news-thumb::after{bottom:14px;right:14px;border-bottom:2px solid var(--signal);border-right:2px solid var(--signal)}

/* scan-stage 内部已有完整 HUD 体系（live/coord/scale/bar/corner），
   再叠 L 角标会与左上「SCANNING」/右下「LOCK」文字重叠 → 取消其角标 */
.scan-stage::before,.scan-stage::after{content:none}

.hud{position:absolute;z-index:5;font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;color:var(--ink-2);pointer-events:none}
.hud-live{top:14px;left:14px;color:var(--signal);display:inline-flex;align-items:center;gap:7px;font-weight:700;font-size:11px;letter-spacing:.04em}
.hud-live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--signal);animation:blink 1.6s ease-in-out infinite}
.hud-coord{top:14px;left:50%;transform:translateX(-50%);color:var(--muted);font-size:11px;letter-spacing:.06em;white-space:nowrap}
.hud-scale{top:48px;bottom:48px;right:14px;width:20px;display:flex;flex-direction:column;justify-content:space-between;align-items:flex-start;color:var(--muted);border-left:1px solid var(--line-strong);padding-left:5px}
.hud-bar{left:14px;bottom:14px;width:min(58%,220px);height:4px;background:var(--line);border-radius:2px;overflow:visible}
.hud-bar i{display:block;height:100%;width:73%;background:var(--signal);border-radius:2px;animation:hud-pulse 3s ease-in-out infinite}
.hud-bar-pct{position:absolute;left:100%;top:50%;transform:translateY(-50%);margin-left:8px;font-family:var(--font-mono);font-size:10.5px;font-weight:700;color:var(--signal);white-space:nowrap}
@keyframes hud-pulse{0%,100%{opacity:.6}50%{opacity:1}}
/* 四角工程标注 */
.scan-corner{position:absolute;z-index:5;font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;color:var(--muted);pointer-events:none;text-transform:uppercase;opacity:.85}
.scan-corner--tr{top:14px;right:14px}
.scan-corner--br{bottom:14px;right:14px;color:var(--signal);opacity:.95}
/* 点云重建层（工程点阵 · 克制呼吸，非发光球） */
.scan-dots{position:absolute;inset:0;z-index:2;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(21,101,176,.5) 1px,transparent 1.4px);
  background-size:18px 18px;
  -webkit-mask-image:radial-gradient(120% 120% at 50% 45%, #000 30%, transparent 72%);
          mask-image:radial-gradient(120% 120% at 50% 45%, #000 30%, transparent 72%);
  animation:dots-breathe 5.5s ease-in-out infinite}
@keyframes dots-breathe{0%,100%{opacity:.32}50%{opacity:.6}}
/* 准星刻度环（精密测量感） */
.reticle-ticks{position:absolute;width:120px;height:120px;border-radius:50%;top:50%;left:50%;transform:translate(-50%,-50%);z-index:3;pointer-events:none;
  background:repeating-conic-gradient(from 0deg, rgba(21,101,176,.55) 0deg .6deg, transparent .6deg 6deg);
  -webkit-mask-image:radial-gradient(circle, transparent 52px, #000 53px, #000 58px, transparent 59px);
          mask-image:radial-gradient(circle, transparent 52px, #000 53px, #000 58px, transparent 59px);
  animation:ring-rotate 40s linear infinite}

.chips{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.chips span{font-family:var(--font-mono);font-size:16px;font-weight:700;letter-spacing:.06em;color:var(--signal);background:var(--signal-soft);border:1px solid var(--line-strong);border-radius:999px;padding:11px 24px}

.btn{clip-path:polygon(0 0,calc(100% - 9px) 0,100% 9px,100% 100%,9px 100%,0 calc(100% - 9px))}
.btn-ghost{clip-path:polygon(0 0,calc(100% - 9px) 0,100% 9px,100% 100%,9px 100%,0 calc(100% - 9px))}

.cap-card,.scan-card,.case-card,.news-card{position:relative}
.cap-card::before,.cap-card::after,.scan-card::before,.scan-card::after,.case-card::before,.case-card::after,.news-card::before,.news-card::after{content:"";position:absolute;width:14px;height:14px;pointer-events:none;opacity:0;transition:opacity .2s;z-index:3}
.cap-card::before,.scan-card::before,.case-card::before,.news-card::before{top:10px;left:10px;border-top:2px solid var(--signal);border-left:2px solid var(--signal)}
.cap-card::after,.scan-card::after,.case-card::after,.news-card::after{bottom:10px;right:10px;border-bottom:2px solid var(--signal);border-right:2px solid var(--signal)}
.cap-card:hover::before,.cap-card:hover::after,.scan-card:hover::before,.scan-card:hover::after,.case-card:hover::before,.case-card:hover::after,.news-card:hover::before,.news-card:hover::after{opacity:1}

/* ===== reveal 动效（克制 · 默认可见，仅作入场轻动效） =====
   不依赖滚动 IO：内容始终可见，加载时一次性轻入场，
   避免"无 JS / 慢设备 / 首屏截图"出现大段空白 */
.reveal{opacity:0;animation:reveal-in .65s cubic-bezier(.2,.7,.2,1) .08s forwards}
@keyframes reveal-in{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* 内部管线 / 状态标签 / 攻关方向 样式已随内容回收移除（无引用，保留能力卡基础样式见上方 .cap-card） */

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .scan-stage{margin:0 auto}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  section{padding:64px 0}
  .nav-links,.nav-actions .btn{display:none}
  .nav-toggle{display:flex}
  .hero{padding:48px 0 64px}
  .cap-grid,.stat-grid,.gallery-grid,.news-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .pano{height:320px}
  .scan-thumb--viewer{min-height:420px}
}
/* ===== 720° 看物嵌入（hero 器物卡） ===== */
/* 主体行：左 2/3 展台 + 右 1/3 元数据 */
.gallery-feature{
  display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:20px;
  margin-bottom:28px;
}
@media(max-width:980px){.gallery-feature{grid-template-columns:1fr;gap:20px}}

/* 器物展台（高密度 HUD） */
.scan-card--featured{grid-column:auto;display:flex;flex-direction:column}
.scan-thumb--viewer{
  position:relative;overflow:hidden;min-height:560px;
  background:
    radial-gradient(132% 96% at 50% 24%, #f7fafd 0%, #eef3f8 46%, #d6e0ec 100%);
  border-bottom:1px solid var(--line);
}
.scan-thumb--viewer::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:
    linear-gradient(rgba(21,101,176,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21,101,176,.08) 1px, transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:linear-gradient(to bottom, transparent, #000 18%, #000 82%, transparent);
          mask-image:linear-gradient(to bottom, transparent, #000 18%, #000 82%, transparent);
}
.scan-thumb--viewer canvas{
  /* 影视级调色：three 后期已含暗角/辉光；此处仅极轻对比、不改色相 */
  filter:contrast(1.04) saturate(1);
}

/* 四角 HUD 标签 */
.viewer-hud{
  position:absolute;z-index:6;
  font:11px/1 var(--font-mono);letter-spacing:.05em;
  color:var(--ink-2);
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 10px;background:#eef2f7;
  border:1px solid var(--line);border-radius:3px;
  white-space:nowrap;
}
.viewer-hud .lbl{color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.viewer-hud .val{color:var(--ink);font-weight:700}
.viewer-hud .val--ok{color:var(--ok);display:inline-flex;align-items:center;gap:5px}
.viewer-hud .val--ok .dot{width:6px;height:6px;border-radius:50%;background:var(--ok);display:inline-block;animation:pulse 1.4s ease-in-out infinite}
.viewer-hud b{color:var(--ink);font-weight:800;font-family:var(--font-mono);font-size:12px}
.viewer-hud i{color:var(--muted);font-style:normal;font-weight:500;margin-left:2px;margin-right:8px}
.viewer-hud i:last-child{margin-right:0}
.viewer-hud--tl{top:14px;left:14px}
.viewer-hud--tr{top:14px;right:14px}
.viewer-hud--bl{bottom:14px;left:14px;gap:14px;padding:7px 12px}
.viewer-hud--br{bottom:14px;right:14px;gap:10px;padding:7px 12px}

/* 左侧 XYZ 轴（mini） */
.hud-axis-mini{
  position:absolute;left:18px;top:50%;transform:translateY(-50%);z-index:4;
  width:22px;height:96px;pointer-events:none;
}
.hud-axis-mini .ax{
  position:absolute;font:bold 10px/1 var(--font-mono);color:var(--signal);
  display:inline-flex;align-items:center;gap:3px;
}
.hud-axis-mini .ax::before{content:"";width:10px;height:1px;background:var(--signal)}
.hud-axis-mini .ax-z{top:0;left:50%;transform:translateX(-50%);writing-mode:vertical-rl}
.hud-axis-mini .ax-y{top:50%;left:0;transform:translateY(-50%)}
.hud-axis-mini .ax-x{bottom:0;left:0}

/* 扫描线 + 旋转环 */
.scan-line{
  position:absolute;left:8%;right:8%;height:1.5px;z-index:3;pointer-events:none;
  background:linear-gradient(90deg, transparent 0%, rgba(21,101,176,.55) 30%, var(--signal) 50%, rgba(21,101,176,.55) 70%, transparent 100%);
  box-shadow:0 0 8px rgba(21,101,176,.4);
  animation:scan-sweep 4.6s linear infinite;
}
@keyframes scan-sweep{0%{top:14%}50%{top:84%}100%{top:14%}}
.scan-ring{
  position:absolute;left:50%;top:50%;
  width:min(78%, 360px);aspect-ratio:1/1;
  transform:translate(-50%,-50%);
  border:1px dashed rgba(21,101,176,.28);
  border-radius:50%;z-index:2;pointer-events:none;
  animation:ring-rotate 22s linear infinite;
}
.scan-ring--inner{
  width:min(56%, 260px);
  border-style:dotted;border-color:rgba(21,101,176,.4);
  animation:ring-rotate-rev 14s linear infinite;
}
@keyframes ring-rotate{to{transform:translate(-50%,-50%) rotate(360deg)}}
@keyframes ring-rotate-rev{to{transform:translate(-50%,-50%) rotate(-360deg)}}

/* 底部米制标尺 */
.ruler-mini{
  position:absolute;left:50%;bottom:16px;transform:translateX(-50%);
  display:inline-flex;align-items:center;gap:8px;
  font:11px/1 var(--font-mono);color:var(--ink-2);
  z-index:5;pointer-events:none;
  background:#eef2f7;
  border:1px solid var(--line);border-radius:3px;
  padding:5px 10px;
}
.ruler-mini .ru{color:var(--ink);font-weight:700}
.ruler-mini .u{color:var(--muted);margin-right:4px}
.ruler-mini .ruler-bar{
  display:inline-block;width:64px;height:1px;background:var(--ink-2);
  position:relative;
}
.ruler-mini .ruler-bar::before,
.ruler-mini .ruler-bar::after{
  content:"";position:absolute;top:-3px;width:1px;height:7px;background:var(--ink-2);
}
.ruler-mini .ruler-bar::before{left:0}
.ruler-mini .ruler-bar::after{right:0}

/* 模型画布（占满展台，置于 HUD 之下） */
.scan-thumb--viewer .p720-canvas{
  position:absolute;inset:0;height:100%!important;width:100%!important;z-index:1;
}
.scan-thumb--viewer .p720-canvas canvas{display:block;width:100%!important;height:100%!important}


/* 角标徽章 */
.badge--featured{
  position:absolute;left:14px;top:14px;z-index:6;
  font:11px/1 var(--font-mono);letter-spacing:.08em;
  color:var(--signal);background:#fff;border:1px solid rgba(21,101,176,.3);
  padding:5px 9px;border-radius:3px;
}

/* ===== 元数据参数面板（右侧） ===== */
.meta-panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 22px 20px;
  display:flex;flex-direction:column;gap:16px;
  position:relative;overflow:hidden;
}
.meta-panel-head .eyebrow{margin-bottom:8px;color:var(--muted);font-size:11px;letter-spacing:.2em}
.meta-panel-head h3{font-size:19px;letter-spacing:.02em;margin-bottom:4px;font-weight:600}
.meta-panel-sub{font-size:12.5px;color:var(--muted);margin:0;line-height:1.5;letter-spacing:.01em}
.meta-list{
  display:grid;grid-template-columns:1fr 1fr;gap:14px 18px;
  margin:0;padding:16px 0 2px;border-top:1px solid var(--line);
}
.meta-list > div{display:flex;flex-direction:column;gap:3px;min-width:0}
.meta-list dt{
  color:var(--muted);font-size:10.5px;font-weight:500;
  letter-spacing:.08em;text-transform:uppercase;
}
.meta-list dd{
  margin:0;color:var(--ink);font-size:13.5px;font-weight:500;
  line-height:1.35;letter-spacing:.005em;
}
.meta-panel-foot{margin-top:auto;padding-top:8px}
.meta-panel-foot .btn{width:100%;justify-content:center}

/* ===== 主展台左列 + 备选 chip ===== */
.gallery-stage-col{display:flex;flex-direction:column;gap:14px;min-width:0}
.asset-chips{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.asset-chip{
  display:flex;align-items:center;gap:9px;
  padding:7px 12px 7px 7px;
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
  cursor:pointer;text-align:left;
  font:13px/1.2 var(--font-sans);color:var(--ink-2);
  transition:border-color .18s,box-shadow .18s,transform .12s,background .18s;
}
.asset-chip:hover{border-color:rgba(21,101,176,.45);transform:translateY(-1px)}
.asset-chip img{
  width:40px;height:40px;border-radius:7px;object-fit:cover;flex:none;
  background:#eef2f7;border:1px solid var(--line);
}
.asset-chip .chip-meta{display:flex;flex-direction:column;gap:2px;min-width:0}
.asset-chip .chip-idx{font:10px/1 var(--font-mono);color:var(--muted);letter-spacing:.06em}
.asset-chip .chip-name{font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
.asset-chip.is-active{
  border-color:var(--signal);background:#fff;
  box-shadow:0 0 0 1px var(--signal),0 8px 18px -10px rgba(21,101,176,.55);
}
.asset-chip.is-active .chip-idx{color:var(--signal)}
@media(max-width:560px){
  .asset-chips{display:flex;flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}
  .asset-chip{flex:none;min-width:108px}
}

/* 720 控件条 */
.p720-bar--inline{display:flex;align-items:center;gap:8px;margin-top:14px;flex-wrap:wrap}
.p720-bar--inline .p720-meta{margin-left:auto;font:11px/1.3 var(--font-mono);color:var(--muted);letter-spacing:.05em}
.p720-bar--inline .p720-btn{padding:7px 12px;font-size:12px}
.p720-bar--inline .btn-primary .dot{
  width:6px;height:6px;border-radius:50%;background:var(--signal);display:inline-block;margin-right:6px;
  animation:pulse 1.4s ease-in-out infinite;
}
.p720-bar--inline .btn-primary.off .dot{background:var(--muted);animation:none}

/* ===== 无障碍：prefers-reduced-motion 降级 =====
   关闭扫描线/点云呼吸/准星脉冲/环转/自驱动动效，保留 opacity 终态 */
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;animation:none}
  .scan-line,.scan-dots,.reticle,.reticle-ticks,.scan-ring,.scan-ring--inner,.hud-live::before,.hud-bar i,.viewer-hud .val--ok .dot,.p720-bar--inline .btn-primary .dot{animation:none!important}
}
@keyframes pulse{0%,100%{opacity:.4;transform:scale(.9)}50%{opacity:1;transform:scale(1.15)}}

/* 3 张缩略卡 · 一行 3 等分 */
.gallery-grid--3{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;
}
/* 4 张样例 · 2×2 */
.gallery-grid--4{
  display:grid;grid-template-columns:repeat(2,1fr);gap:20px;
}
@media(max-width:760px){
  .gallery-grid--4{grid-template-columns:1fr}
}
@media(max-width:760px){
  .gallery-grid--3{grid-template-columns:1fr;gap:14px}
}
@media(max-width:980px){
  .gallery-grid--3{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .gallery-grid--3{grid-template-columns:1fr}
  .scan-card--featured{grid-column:span 1}
  .scan-thumb--viewer{min-height:380px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ===== 法律文档页（隐私政策等） ===== */
.legal-wrap{max-width:840px;margin:0 auto}
.legal-doc{max-width:840px}
.legal-doc h3{margin:34px 0 12px;font-size:18px;line-height:1.4;color:var(--ink);padding-top:24px;border-top:1px solid var(--line)}
.legal-doc h3:first-of-type{border-top:none;padding-top:0;margin-top:10px}
.legal-doc p{color:var(--ink-2);margin:0 0 14px}
.legal-doc ul{list-style:disc;padding-left:22px;margin:0 0 16px}
.legal-doc ul li{margin:0 0 8px;color:var(--ink-2)}
.legal-doc strong{color:var(--ink);font-weight:700}
.legal-doc a{color:var(--signal);text-decoration:underline;text-underline-offset:2px}
.legal-updated{font-family:var(--font-mono);font-size:13px;color:var(--muted);margin:0 0 4px}
.legal-contact{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px 20px;margin:18px 0 4px}
.legal-contact p{margin:0 0 6px;color:var(--ink-2)}
.legal-contact p:last-child{margin-bottom:0}
.legal-contact b{color:var(--ink)}