/* ==========================================================================
   衡水广通橡胶制品有限公司 · 官网主样式表
   设计语言：工业蓝图 × 参数化数据（Industrial Blueprint / Data-Driven）
   版本：v2.0  2026-10
   --------------------------------------------------------------------------
   目录
   0. 设计变量与基础重置
   1. 版式与容器 / 标题体系
   2. 顶部条 / 导航 / 页脚
   3. 按钮
   4. 首屏 Hero
   5. 通用卡片 / 网格
   6. GEO 组件：核心事实卡、答案框、数据表、引用块
   7. 产品卡 / 热点图 / 决策矩阵
   8. 表单 / 询价区
   9. FAQ / 时间轴 / 数据条 / 图片位
   10. 工具页组件
   11. 动效与工具类
   12. 响应式
   ========================================================================== */

/* ---------- 0. 设计变量 ---------- */
:root{
  --navy:#061629; --navy-2:#0a2138; --navy-3:#0e2c47;
  --primary:#0b4f9e; --primary-2:#1167c4; --primary-lt:#8fbce8;
  --primary-ghost:#eaf2fb;
  --accent:#ff6a00; --accent-dk:#d95500;
  --ok:#0f8a4d; --ok-dk:#0a6039;
  --gold:#c8a250;
  --ink:#0f171f; --gray:#5b6673; --gray-2:#7a8691; --gray-lt:#9aa5b1;
  --line:#e3e9f0; --line-2:#eef2f7;
  --bg:#f6f8fa; --white:#fff;
  --mono:"DIN Alternate","Bahnschrift","Consolas","SF Mono",Menlo,monospace;
  --sans:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",-apple-system,"Segoe UI",sans-serif;
  --r:14px; --r-sm:9px; --r-lg:20px;
  --sh-1:0 1px 2px rgba(6,22,41,.05);
  --sh-2:0 6px 22px rgba(6,22,41,.07);
  --sh-3:0 18px 50px rgba(6,22,41,.14);
  --maxw:1180px;
  --head-h:64px;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  font-family:var(--sans);color:var(--ink);background:var(--bg);
  line-height:1.78;font-size:15.5px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
table{border-collapse:collapse;width:100%;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:var(--primary);color:#fff;}

/* 数字统一等宽，强化"参数感" */
.num,.mono,.stat b,.tk,.data-num{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- 1. 版式 ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px;}
.wrap-narrow{max-width:880px;margin:0 auto;padding:0 20px;}

section{position:relative;}
.sec{padding:72px 0;}
.sec--tight{padding:52px 0;}
.sec--white{background:var(--white);}
.sec--navy{background:var(--navy);color:#dbe6f2;}
.sec--ghost{background:var(--bg);}

/* 章节眉标：01 / 主营产品 */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;font-weight:700;letter-spacing:.16em;
  color:var(--primary);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow i{
  font-family:var(--mono);font-style:normal;font-size:12px;font-weight:700;
  background:var(--primary);color:#fff;padding:2px 8px;border-radius:4px;letter-spacing:.04em;
}
.sec--navy .eyebrow{color:var(--primary-lt);}
.sec--navy .eyebrow i{background:var(--accent);}

.sec-h{margin-bottom:38px;}
.sec-h.center{text-align:center;}
.sec-h.center .eyebrow{justify-content:center;}
.sec-h h2{
  font-size:clamp(23px,2.6vw,32px);line-height:1.32;font-weight:800;
  letter-spacing:-.02em;color:var(--ink);margin-bottom:12px;
}
.sec--navy .sec-h h2{color:#fff;}
.sec-h .lead{
  font-size:15px;color:var(--gray);max-width:760px;line-height:1.85;
}
.sec-h.center .lead{margin:0 auto;}
.sec--navy .sec-h .lead{color:#a9c1d9;}

/* 正文强调 */
mark,.hl{
  background:linear-gradient(180deg,transparent 58%,rgba(255,106,0,.28) 58%);
  color:inherit;font-weight:700;padding:0 1px;
}
.kw{color:var(--primary);font-weight:700;}
.sec--navy .kw{color:#8fc2ff;}

/* ---------- 2. 顶部条 / 导航 / 页脚 ---------- */
.topbar{
  background:var(--navy);color:#93a9c0;font-size:12.5px;
  padding:7px 0;border-bottom:1px solid rgba(255,255,255,.07);
}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;
  gap:14px;flex-wrap:wrap;}
.topbar b,.topbar strong{color:#fff;font-weight:700;}
.topbar a{color:#fff;font-weight:700;}
.topbar a:hover{color:var(--accent);}

.site-head{
  background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:90;backdrop-filter:saturate(180%) blur(12px);
}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;
  height:var(--head-h);gap:16px;}
.brand{display:flex;align-items:center;gap:11px;min-width:0;}
.brand-mark{
  flex:0 0 38px;height:38px;border-radius:9px;
  background:linear-gradient(140deg,var(--primary),var(--navy-2));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-weight:800;font-size:16px;letter-spacing:-.5px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.22);
}
.brand-txt{min-width:0;}
.brand-txt b{display:block;font-size:16.5px;font-weight:800;color:var(--navy);
  letter-spacing:-.01em;line-height:1.3;white-space:nowrap;}
.brand-txt small{display:block;font-size:10.5px;color:var(--gray-2);
  letter-spacing:.1em;line-height:1.4;white-space:nowrap;}

nav.main-nav{display:flex;align-items:center;gap:2px;}
nav.main-nav a{
  font-size:14.5px;color:#42505e;padding:8px 12px;border-radius:7px;
  font-weight:500;white-space:nowrap;transition:background .15s,color .15s;
}
nav.main-nav a:hover{background:var(--primary-ghost);color:var(--primary);}
nav.main-nav a.on{color:var(--primary);font-weight:700;background:var(--primary-ghost);}

.head-act{display:flex;align-items:center;gap:10px;}
.head-tel{display:flex;flex-direction:column;line-height:1.25;text-align:right;}
.head-tel small{font-size:10.5px;color:var(--gray-2);letter-spacing:.06em;}
.head-tel b{font-family:var(--mono);font-size:16px;color:var(--navy);font-weight:800;
  letter-spacing:.01em;}
.head-tel b:hover{color:var(--accent);}

.nav-toggle{
  display:none;width:42px;height:38px;border:1px solid var(--line);border-radius:9px;
  background:#fff;cursor:pointer;position:relative;
}
.nav-toggle span{position:absolute;left:11px;right:11px;height:2px;background:var(--navy);
  border-radius:2px;transition:.22s;}
.nav-toggle span:nth-child(1){top:12px;}
.nav-toggle span:nth-child(2){top:18px;}
.nav-toggle span:nth-child(3){top:24px;}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.site-foot{background:var(--navy);color:#8fa3ba;padding:56px 0 26px;font-size:13.5px;}
.site-foot h5{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px;
  letter-spacing:.04em;}
.site-foot a{color:#a7bbd1;}
.site-foot a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:36px;margin-bottom:34px;}
.f-brand b{display:block;color:#fff;font-size:17px;font-weight:800;margin-bottom:9px;}
.f-brand p{font-size:12.8px;line-height:1.9;color:#7e94ac;}
.f-brand .f-tag{display:inline-block;margin-top:12px;font-size:11.5px;
  border:1px solid rgba(255,255,255,.18);border-radius:20px;padding:3px 11px;color:#a7bbd1;}
.f-list{display:flex;flex-direction:column;gap:8px;font-size:13px;}
.f-contact .f-tel{font-family:var(--mono);font-size:22px;color:#fff;font-weight:800;
  margin-bottom:4px;display:block;letter-spacing:.01em;}
.f-contact .f-tel:hover{color:var(--accent);}
.f-note{margin-top:10px;font-size:12px;line-height:1.8;color:#7e94ac;}
.f-copy{border-top:1px solid rgba(255,255,255,.09);padding-top:18px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:#6c8098;}
.f-copy a:hover{color:#fff;}

/* ---------- 3. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-sm);font-weight:700;font-size:14.5px;
  cursor:pointer;border:1.6px solid transparent;transition:transform .16s,box-shadow .16s,background .16s;
  white-space:nowrap;line-height:1.4;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent);color:#fff;
  box-shadow:0 4px 14px rgba(255,106,0,.28);}
.btn-primary:hover{background:var(--accent-dk);box-shadow:0 7px 20px rgba(255,106,0,.36);}
.btn-blue{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(11,79,158,.24);}
.btn-blue:hover{background:#09417f;}
.btn-line{background:#fff;color:var(--primary);border-color:rgba(11,79,158,.42);}
.btn-line:hover{background:var(--primary-ghost);border-color:var(--primary);}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.34);}
.btn-ghost:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.6);}
.btn-light{background:#fff;color:var(--navy);}
.btn-light:hover{background:#eef3f9;}
.btn-lg{padding:15px 34px;font-size:16px;border-radius:10px;}
.btn-block{width:100%;}
.btn-row{display:flex;gap:13px;flex-wrap:wrap;align-items:center;}

/* ---------- 4. 首屏 Hero ---------- */
.hero{
  position:relative;background:var(--navy);color:#fff;overflow:hidden;
  padding:64px 0 0;
}
.hero::before{ /* 蓝图网格 */
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(140,190,255,.075) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,190,255,.075) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse 78% 62% at 30% 22%,#000 25%,transparent 82%);
  -webkit-mask-image:radial-gradient(ellipse 78% 62% at 30% 22%,#000 25%,transparent 82%);
  pointer-events:none;
}
.hero::after{ /* 光晕 */
  content:"";position:absolute;width:820px;height:820px;right:-280px;top:-420px;
  background:radial-gradient(circle,rgba(17,103,196,.55),transparent 66%);
  pointer-events:none;
}
.hero .wrap{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:46px;align-items:center;}

.hero-badge{
  display:inline-flex;align-items:center;gap:9px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.2);
  border-radius:30px;padding:6px 15px;margin-bottom:22px;color:#c8dcf2;letter-spacing:.02em;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:#2fd473;
  box-shadow:0 0 0 4px rgba(47,212,115,.2);animation:pulse 2.4s infinite;}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(47,212,115,.2);}50%{box-shadow:0 0 0 8px rgba(47,212,115,0);}}

.hero h1{
  font-size:clamp(24px,2.8vw,34px);line-height:1.34;font-weight:800;
  letter-spacing:-.02em;margin-bottom:20px;
}
.hero h1 .em{color:#ffb066;position:relative;white-space:nowrap;}
.hero h1 .em::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;
  background:rgba(255,106,0,.28);z-index:-1;border-radius:2px;}
.hero-sub{font-size:16px;line-height:1.85;color:#b7cde4;max-width:620px;margin-bottom:26px;}
.hero-sub b{color:#fff;font-weight:700;}

.tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:30px;}
.tag{
  font-size:12.5px;background:rgba(255,255,255,.075);border:1px solid rgba(255,255,255,.18);
  padding:6px 13px;border-radius:20px;color:#cbdcf0;white-space:nowrap;
}
.tag b{color:#fff;font-family:var(--mono);}
.tag.on{background:rgba(255,106,0,.16);border-color:rgba(255,106,0,.5);color:#ffc79b;}

/* Hero 底部数据条 */
.hero-stats{
  position:relative;z-index:2;margin-top:52px;
  border-top:1px solid rgba(255,255,255,.13);
  display:grid;grid-template-columns:repeat(4,1fr);
  background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,0));
}
.hero-stats .st{padding:20px 18px;border-right:1px solid rgba(255,255,255,.09);}
.hero-stats .st:last-child{border-right:none;}
.hero-stats .st b{display:block;font-family:var(--mono);font-size:26px;font-weight:800;
  color:#fff;letter-spacing:-.01em;line-height:1.2;}
.hero-stats .st b i{font-style:normal;font-size:15px;color:var(--primary-lt);
  font-weight:700;margin-left:2px;}
.hero-stats .st > span{display:block;font-size:12px;color:#8fa8c2;margin-top:3px;
  letter-spacing:.04em;}

/* ---------- 5. 卡片 / 网格 ---------- */
.grid{display:grid;gap:20px;}
.g-2{grid-template-columns:repeat(2,1fr);}
.g-3{grid-template-columns:repeat(3,1fr);}
.g-4{grid-template-columns:repeat(4,1fr);}
.g-auto{grid-template-columns:repeat(auto-fit,minmax(272px,1fr));}

.card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:26px;transition:box-shadow .22s,transform .22s,border-color .22s;
  box-shadow:var(--sh-1);overflow:hidden;
}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#c3d6ea;}
.card h3{font-size:17.5px;font-weight:800;color:var(--navy);margin-bottom:8px;
  letter-spacing:-.01em;line-height:1.45;}
.card p{font-size:13.8px;color:var(--gray);line-height:1.8;}
.card .more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:13.5px;font-weight:700;color:var(--accent);}
.card .more::after{content:"→";transition:transform .2s;}
.card:hover .more::after{transform:translateX(4px);}

/* 带角标切角的卡片 */
.card--tick::before,.card--tick::after{
  content:"";position:absolute;width:13px;height:13px;border-color:var(--primary);
  border-style:solid;opacity:0;transition:opacity .22s;
}
.card--tick::before{top:9px;left:9px;border-width:2px 0 0 2px;border-top-left-radius:3px;}
.card--tick::after{bottom:9px;right:9px;border-width:0 2px 2px 0;border-bottom-right-radius:3px;}
.card--tick:hover::before,.card--tick:hover::after{opacity:1;}

/* 深色卡片 */
.card--dark{background:linear-gradient(150deg,var(--navy-2),var(--navy));
  border-color:rgba(255,255,255,.1);color:#cfdded;}
.card--dark h3{color:#fff;}
.card--dark p{color:#9fb6cf;}

/* 数字/字母图标块 */
.ico{
  flex:0 0 46px;width:46px;height:46px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-ghost);color:var(--primary);font-weight:800;font-size:17px;
  font-family:var(--mono);margin-bottom:15px;
}
.ico-accent{background:rgba(255,106,0,.1);color:var(--accent-dk);}
.ico-ok{background:rgba(15,138,77,.1);color:var(--ok);}
.ico img{width:26px;height:26px;object-fit:contain;}

/* 小徽标（标准号） */
.std{
  display:inline-block;background:var(--primary-ghost);color:var(--primary);
  font-family:var(--mono);font-size:11.5px;font-weight:700;padding:2.5px 9px;
  border-radius:5px;letter-spacing:.01em;white-space:nowrap;
}
.std-ok{background:rgba(15,138,77,.1);color:var(--ok-dk);}
.pill{display:inline-block;font-size:12px;padding:4px 12px;border-radius:20px;
  background:var(--primary-ghost);color:var(--primary);font-weight:600;}

/* ---------- 6. GEO 组件 ---------- */
/* 6.1 核心事实卡：给 AI 引擎直接摘取的区块 */
.facts{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);overflow:hidden;
}
.facts-hd{
  background:linear-gradient(120deg,var(--navy-2),var(--primary));
  color:#fff;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;
}
.facts-hd h3{font-size:15.5px;font-weight:800;letter-spacing:.02em;display:flex;
  align-items:center;gap:9px;}
/* 高优先级兜底：文章页的内联 `.article h3`、产品页的 `.pblock h3` 会覆盖标题色，
   深色事实卡条上的标题必须强制保持白色 */
.facts .facts-hd h3{color:#fff;}
.facts-hd .badge{font-size:11px;font-weight:700;background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.26);padding:2px 9px;border-radius:20px;
  letter-spacing:.05em;color:#dbe9f8;}
.facts-bd{padding:8px 24px 20px;}
.facts-row{display:grid;grid-template-columns:150px 1fr;gap:16px;
  padding:13px 0;border-bottom:1px solid var(--line-2);align-items:start;}
.facts-row:last-child{border-bottom:none;}
.facts-row dt{font-size:13px;font-weight:700;color:var(--gray);letter-spacing:.02em;}
.facts-row dd{font-size:14px;color:var(--ink);line-height:1.75;}
.facts-row dd b{color:var(--primary);font-weight:800;}
.facts-row dd .num{font-weight:700;}

/* 6.2 答案框：一句话直答（AI 最爱提取） */
.answer{
  position:relative;background:linear-gradient(180deg,#f4f9ff,#fff);
  border:1px solid #d5e5f7;border-left:5px solid var(--primary);
  border-radius:12px;padding:22px 26px 22px 26px;
}
.answer .q{font-size:13px;font-weight:700;color:var(--primary);letter-spacing:.02em;
  margin-bottom:9px;display:flex;align-items:center;gap:8px;}
.answer .q::before{content:"Q";font-family:var(--mono);width:19px;height:19px;
  background:var(--primary);color:#fff;border-radius:4px;font-size:11px;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.answer .a{font-size:15px;line-height:1.9;color:#1d2a37;}
.answer .a strong{color:var(--navy);font-weight:800;}

/* 6.3 数据表 */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;
  background:#fff;box-shadow:var(--sh-1);-webkit-overflow-scrolling:touch;}
.data-table{font-size:13.5px;min-width:640px;}
.data-table th{
  background:var(--navy-2);color:#fff;padding:12px 15px;text-align:left;
  font-weight:700;font-size:12.8px;white-space:nowrap;letter-spacing:.02em;
  border-right:1px solid rgba(255,255,255,.08);
}
.data-table th:last-child{border-right:none;}
.data-table td{padding:11px 15px;border-bottom:1px solid var(--line-2);
  vertical-align:top;line-height:1.7;}
.data-table tbody tr:last-child td{border-bottom:none;}
.data-table tbody tr:nth-child(even){background:#fafcfe;}
.data-table tbody tr:hover{background:#f2f8ff;}
.data-table td.num,.data-table td .num{font-family:var(--mono);font-weight:600;
  color:var(--navy);white-space:nowrap;}
.data-table caption{caption-side:top;text-align:left;font-size:12.5px;color:var(--gray-2);
  padding:0 0 10px;}
.data-table th:first-child,.data-table td:first-child{padding-left:18px;}

/* 6.4 引用/出处块 */
.cite{
  font-size:12.5px;color:var(--gray-2);background:var(--line-2);
  border-radius:8px;padding:11px 15px;margin-top:14px;line-height:1.75;
}
.cite b{color:var(--gray);}
.cite .std{margin-right:6px;}

/* 6.5 提示块 */
.note{background:#fffaeb;border-left:4px solid #f0a500;border-radius:8px;
  padding:14px 18px;font-size:13.5px;color:#6d4c00;line-height:1.8;margin-top:16px;}
.note b{color:#8a5f00;}
.note-ok{background:#f0fbf5;border-left-color:var(--ok);color:#0a5c3a;}
.note-ok b{color:var(--ok-dk);}

/* ---------- 7. 产品卡 / 热点图 / 矩阵 ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.prod{
  position:relative;display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--r);padding:22px 20px;
  transition:.22s;box-shadow:var(--sh-1);overflow:hidden;
}
.prod::after{content:"";position:absolute;left:0;top:0;height:3px;width:0;
  background:var(--accent);transition:width .3s;}
.prod:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#c3d6ea;}
.prod:hover::after{width:100%;}
.prod .p-no{position:absolute;right:16px;top:14px;font-family:var(--mono);
  font-size:12px;font-weight:800;color:#c9d6e4;letter-spacing:.04em;}
.prod .p-ico{width:42px;height:42px;border-radius:10px;background:var(--primary-ghost);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;}
.prod .p-ico img{width:24px;height:24px;}
.prod h3{font-size:16.5px;font-weight:800;color:var(--navy);margin-bottom:6px;
  letter-spacing:-.01em;}
.prod h3 small{display:block;font-size:11px;font-weight:600;color:var(--gray-lt);
  font-family:var(--mono);letter-spacing:.04em;margin-top:2px;}
.prod p{font-size:13px;color:var(--gray);line-height:1.75;flex:1;}
.prod .p-std{margin-top:13px;display:flex;flex-wrap:wrap;gap:5px;}
.prod .p-link{margin-top:13px;font-size:13px;font-weight:700;color:var(--primary);
  display:flex;align-items:center;gap:5px;}
.prod .p-link::after{content:"→";transition:transform .2s;}
.prod:hover .p-link::after{transform:translateX(3px);}

/* 7.2 全链路剖面图 */
.blueprint{
  position:relative;background:var(--navy-2);border-radius:var(--r-lg);
  overflow:hidden;border:1px solid rgba(255,255,255,.1);
}
.blueprint::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(140,190,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,190,255,.07) 1px,transparent 1px);
  background-size:26px 26px;pointer-events:none;
}
.bp-head{position:relative;z-index:2;padding:22px 26px 0;display:flex;
  justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;}
.bp-head h3{color:#fff;font-size:18px;font-weight:800;letter-spacing:-.01em;}
.bp-head p{color:#93aecb;font-size:13px;margin-top:5px;max-width:520px;}
.bp-legend{display:flex;gap:8px;flex-wrap:wrap;}
.bp-legend span{font-size:11.5px;color:#b9cfe7;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);border-radius:5px;padding:3px 9px;}
.bp-svg{position:relative;z-index:2;width:100%;height:auto;}

/* SVG 内热点 */
.hot{cursor:pointer;}
.hot .hot-dot{fill:var(--accent);stroke:#fff;stroke-width:2;transition:r .2s;}
.hot .hot-ring{fill:none;stroke:var(--accent);stroke-width:1.5;opacity:.5;
  animation:hotpulse 2.2s ease-out infinite;transform-origin:center;transform-box:fill-box;}
@keyframes hotpulse{0%{transform:scale(.7);opacity:.75;}70%{transform:scale(1.9);opacity:0;}100%{opacity:0;}}
.hot text{font-size:11.5px;font-weight:700;fill:#dbe9f8;font-family:var(--sans);}
.hot .hot-box{fill:rgba(6,22,41,.82);stroke:rgba(255,255,255,.2);stroke-width:1;}
.hot:hover .hot-dot{fill:#fff;r:7;}
.hot:hover .hot-box{stroke:var(--accent);stroke-width:1.6;}
.hot-line{stroke:rgba(255,255,255,.28);stroke-width:1;stroke-dasharray:3 3;}
.hp-0{fill:none;stroke:#4d7aa8;stroke-width:1.6;}
.hp-1{fill:#123a5c;stroke:#4d7aa8;stroke-width:1.6;}
.hp-2{fill:#0d2c47;stroke:#4d7aa8;stroke-width:1.6;}
.hp-g{fill:none;stroke:#2c5480;stroke-width:1;stroke-dasharray:4 4;}
.hp-t{fill:#8fb2d6;font-size:11px;font-family:var(--sans);}

/* 7.3 决策矩阵 */
.matrix{display:grid;grid-template-columns:170px repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:12px;
  overflow:hidden;font-size:13.2px;}
.matrix>div{background:#fff;padding:12px 14px;}
.matrix .mh{background:var(--navy-2);color:#fff;font-weight:700;font-size:12.8px;
  display:flex;align-items:center;}
.matrix .mrh{background:#f4f7fb;font-weight:700;color:var(--navy);font-size:13px;
  display:flex;align-items:center;}
.matrix .yes{color:var(--ok);font-weight:700;}
.matrix .no{color:var(--gray-lt);}
.matrix .half{color:#b26a00;font-weight:600;}

/* ---------- 8. 表单 / 询价 ---------- */
.inquiry{
  background:linear-gradient(150deg,var(--navy),#0a2440 55%,#0b2f52);
  color:#fff;position:relative;overflow:hidden;
}
.inquiry::before{content:"";position:absolute;width:700px;height:700px;
  left:-260px;bottom:-420px;
  background:radial-gradient(circle,rgba(17,103,196,.4),transparent 65%);pointer-events:none;}
.inquiry .wrap{position:relative;z-index:2;}
.inq-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start;}
.inq-copy h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;color:#fff;
  line-height:1.35;margin-bottom:16px;letter-spacing:-.02em;}
.inq-copy p{color:#a9c2da;font-size:14.5px;line-height:1.85;margin-bottom:22px;}
.inq-list{display:flex;flex-direction:column;gap:14px;margin-bottom:26px;}
.inq-list li{display:flex;gap:12px;font-size:14px;color:#c3d6e8;list-style:none;line-height:1.7;}
.inq-list .tick{flex:0 0 20px;height:20px;border-radius:50%;background:rgba(47,212,115,.16);
  color:#2fd473;display:flex;align-items:center;justify-content:center;font-size:12px;
  font-weight:800;margin-top:2px;}
.inq-hot{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:12px;padding:16px 18px;}
.inq-hot small{font-size:11.5px;color:#8fa8c2;letter-spacing:.08em;display:block;
  margin-bottom:6px;}
.inq-hot a{font-family:var(--mono);font-size:23px;font-weight:800;color:#fff;
  letter-spacing:.01em;}
.inq-hot a:hover{color:var(--accent);}

.form-card{
  background:#fff;border-radius:var(--r-lg);padding:30px;color:var(--ink);
  box-shadow:var(--sh-3);
}
.form-card h3{font-size:19px;font-weight:800;color:var(--navy);margin-bottom:5px;}
.form-card .f-sub{font-size:12.8px;color:var(--gray);margin-bottom:20px;}
.fld{display:flex;flex-direction:column;gap:6px;}
.fld label{font-size:12.8px;font-weight:700;color:#33404e;letter-spacing:.01em;}
.fld label .req{color:var(--accent);}
.fld input,.fld select,.fld textarea{
  width:100%;padding:11px 13px;border:1.4px solid #d3dde8;border-radius:8px;
  font-size:14px;background:#fff;transition:border-color .15s,box-shadow .15s;
}
.fld input:focus,.fld select:focus,.fld textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3.5px rgba(11,79,158,.11);}
.fld textarea{resize:vertical;min-height:78px;line-height:1.7;}
.fld .hint{font-size:11.5px;color:var(--gray-lt);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px;}
.form-row.one{grid-template-columns:1fr;}
.form-ok{text-align:center;padding:34px 10px;}
.form-ok .ok-ico{width:62px;height:62px;border-radius:50%;background:rgba(15,138,77,.1);
  color:var(--ok);font-size:30px;display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;}
.form-ok h3{font-size:19px;margin-bottom:8px;}
.form-ok p{font-size:13.5px;color:var(--gray);}

/* ---------- 9. FAQ / 时间轴 / 数据条 / 图片位 ---------- */
.faq{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  box-shadow:var(--sh-1);}
.faq details{border-bottom:1px solid var(--line-2);}
.faq details:last-child{border-bottom:none;}
.faq summary{
  padding:17px 24px;font-weight:700;font-size:15px;cursor:pointer;list-style:none;
  position:relative;padding-right:52px;color:var(--navy);line-height:1.65;
  transition:background .15s;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{background:#f7fafd;}
.faq summary::after{
  content:"";position:absolute;right:24px;top:50%;width:11px;height:11px;
  border-right:2.2px solid var(--primary);border-bottom:2.2px solid var(--primary);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s;
}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq details[open] summary{background:#f7fafd;}
.faq .ans{padding:2px 24px 20px;font-size:14px;color:#33404e;line-height:1.9;}
.faq .ans .first{color:var(--navy);font-weight:700;}
.faq .ans b{color:var(--navy);font-weight:700;}
.faq .ans a{color:var(--primary);text-decoration:underline;text-underline-offset:2px;}

/* 时间轴 */
.timeline{position:relative;padding-left:30px;}
.timeline::before{content:"";position:absolute;left:5px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--primary),var(--line));}
.tl-item{position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{content:"";position:absolute;left:-30px;top:7px;width:12px;height:12px;
  border-radius:50%;background:#fff;border:3px solid var(--primary);}
.tl-item.now::before{background:var(--accent);border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(255,106,0,.14);}
.tl-item h4{font-size:15px;font-weight:800;color:var(--navy);margin-bottom:5px;}
.tl-item h4 span{font-family:var(--mono);color:var(--accent);font-size:13px;
  margin-right:8px;letter-spacing:.02em;}
.tl-item p{font-size:13.5px;color:var(--gray);line-height:1.8;}

/* 工艺数据条 */
.strip{background:var(--navy-2);border-radius:var(--r);padding:26px 30px;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:24px;}
.strip .s-i b{display:block;font-family:var(--mono);font-size:24px;color:#fff;font-weight:800;}
.strip .s-i b i{font-style:normal;font-size:13px;color:var(--primary-lt);margin-left:2px;}
.strip .s-i span{font-size:12.5px;color:#8fa8c2;}

/* 图片位（实拍图占位，交付后替换） */
.shot{
  position:relative;background:linear-gradient(150deg,#eff4f9,#e4ecf4);
  border:1.6px dashed #b9c9d9;border-radius:12px;overflow:hidden;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:28px 18px;min-height:170px;color:#7c8fa2;
}
.shot .s-ico{width:38px;height:38px;border-radius:10px;background:rgba(11,79,158,.08);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  font-size:17px;margin-bottom:11px;font-weight:800;}
.shot b{font-size:13.5px;color:var(--navy);font-weight:700;margin-bottom:4px;}
.shot span{font-size:11.8px;line-height:1.7;}
.shot em{font-style:normal;font-family:var(--mono);font-size:11px;color:var(--gray-lt);
  display:block;margin-top:7px;}

/* 待补充标记（交付后由厂家资料替换） */
.tbd{
  background:#fff6e8;border-bottom:1.5px dashed #e0a33a;color:#8a5a00;
  padding:0 3px;border-radius:3px;font-weight:600;font-size:.94em;
}

/* 面包屑 */
.crumb{font-size:12.5px;color:var(--gray-2);padding:16px 0 0;}
.crumb a{color:var(--gray-2);}
.crumb a:hover{color:var(--primary);}
.crumb span{color:var(--line);margin:0 7px;}

/* 页头（内页） */
.page-hero{background:var(--navy);color:#fff;padding:52px 0 44px;position:relative;
  overflow:hidden;}
.page-hero::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(140,190,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,190,255,.07) 1px,transparent 1px);
  background-size:40px 40px;pointer-events:none;
  mask-image:radial-gradient(ellipse 70% 80% at 20% 50%,#000 30%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse 70% 80% at 20% 50%,#000 30%,transparent 80%);}
.page-hero .wrap{position:relative;z-index:2;}
.page-hero h1{font-size:clamp(24px,3.1vw,36px);font-weight:800;letter-spacing:-.02em;
  line-height:1.3;margin-bottom:14px;}
.page-hero p{font-size:15px;color:#aec5dc;max-width:820px;line-height:1.85;}
.page-hero .hp-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}

/* 浮动拨打（移动端） */
.float-call{display:none;position:fixed;left:0;right:0;bottom:0;z-index:120;
  background:var(--accent);color:#fff;text-align:center;padding:14px;
  font-size:16.5px;font-weight:800;letter-spacing:.02em;
  box-shadow:0 -6px 20px rgba(0,0,0,.18);}
.float-call b{font-family:var(--mono);}

/* 返回顶部 */
.to-top{position:fixed;right:20px;bottom:26px;width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  color:var(--primary);font-size:17px;z-index:100;opacity:0;pointer-events:none;
  transition:opacity .2s,transform .2s;}
.to-top.show{opacity:1;pointer-events:auto;}
.to-top:hover{transform:translateY(-2px);}

/* ---------- 10. 工具页组件 ---------- */
.tool-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--sh-2);}
.tool-panel .t-h{display:flex;align-items:center;gap:12px;margin-bottom:6px;}
.tool-panel .t-h .n{width:30px;height:30px;border-radius:8px;background:var(--primary);
  color:#fff;font-family:var(--mono);font-weight:800;font-size:14px;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.tool-panel h2{font-size:21px;font-weight:800;color:var(--navy);letter-spacing:-.01em;}
.tool-panel .t-sub{color:var(--gray);font-size:13.5px;margin:0 0 22px 42px;}

.field-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.field-grid .full{grid-column:1/-1;}
@media(min-width:900px){.field-grid.g3{grid-template-columns:repeat(3,1fr);}}

.calc-out{
  background:#0b1c2e;color:#d8e6f4;border-radius:12px;padding:18px 20px;
  font-family:var(--mono);font-size:13px;line-height:2;overflow-x:auto;
  white-space:pre-wrap;word-break:break-word;border:1px solid rgba(255,255,255,.1);
}
.calc-out .k{color:#7fb6ef;}
.calc-out .v{color:#ffb066;font-weight:700;}

.res-card{border:2px solid var(--primary);border-radius:14px;overflow:hidden;background:#fff;}
.res-hd{background:var(--primary);color:#fff;padding:14px 22px;font-weight:800;
  font-size:15.5px;display:flex;justify-content:space-between;gap:12px;
  flex-wrap:wrap;align-items:center;}
.res-bd{padding:22px;}
.rec{background:#effaf3;border-left:4px solid var(--ok);border-radius:8px;
  padding:16px 18px;margin-bottom:14px;}
.rec .lab{font-size:11.5px;font-weight:800;color:var(--ok-dk);letter-spacing:.08em;}
.rec .model{font-family:var(--mono);font-size:clamp(18px,2.4vw,25px);font-weight:800;
  color:#0a5c3a;margin:5px 0 7px;line-height:1.35;word-break:break-word;letter-spacing:-.01em;}
.rec .why{font-size:13.2px;color:#2c5f43;line-height:1.8;}
.rec.alt{background:#f2f8ff;border-left-color:var(--primary);}
.rec.alt .lab{color:var(--primary);}
.rec.alt .model{color:#08386e;}
.rec.alt .why{color:#2c4258;}

.tab-bar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:22px;
  background:#eef3f9;padding:6px;border-radius:12px;}
.tab-bar button{border:none;background:transparent;padding:10px 17px;border-radius:8px;
  font-size:14px;font-weight:700;color:#4a5a6b;cursor:pointer;transition:.16s;}
.tab-bar button:hover{background:rgba(255,255,255,.7);color:var(--primary);}
.tab-bar button.on{background:#fff;color:var(--primary);box-shadow:var(--sh-1);}
.tab-pane{display:none;}
.tab-pane.on{display:block;animation:fadeUp .28s ease both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:none;}}

/* 侧栏目录 */
.with-toc{display:grid;grid-template-columns:216px 1fr;gap:32px;align-items:start;}
/* 防止 grid / flex 子项被表格与长串撑破（横向溢出的根本修复） */
.with-toc > *{min-width:0;}
.grid > *,.g-2 > *,.g-3 > *,.g-4 > *,.prod-grid > *,.tool-cards > *,.legend-grid > *{min-width:0;}
.pblock,.tool-panel,.form-card,.facts,.faq,.strip{min-width:0;}
.table-wrap,.bp-scroll{max-width:100%;}
.toc{position:sticky;top:calc(var(--head-h) + 18px);background:#fff;
  border:1px solid var(--line);border-radius:12px;padding:18px;box-shadow:var(--sh-1);}
.toc h4{font-size:11.5px;letter-spacing:.14em;color:var(--gray-2);font-weight:700;
  margin-bottom:12px;text-transform:uppercase;}
.toc a{display:block;font-size:13.2px;color:#42505e;padding:7px 10px;border-radius:7px;
  margin-bottom:2px;border-left:2px solid transparent;line-height:1.5;}
.toc a:hover{background:var(--primary-ghost);color:var(--primary);}
.toc a.on{background:var(--primary-ghost);color:var(--primary);font-weight:700;
  border-left-color:var(--primary);}
.toc .toc-cta{margin-top:14px;padding-top:14px;border-top:1px solid var(--line-2);}
.toc .toc-cta a{background:var(--accent);color:#fff;text-align:center;font-weight:700;
  border-radius:8px;padding:10px;font-size:13px;display:block;border-left:none;}
.toc .toc-cta a:hover{background:var(--accent-dk);color:#fff;}

/* 产品内容块 */
.pblock{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;margin-bottom:22px;scroll-margin-top:calc(var(--head-h) + 20px);
  box-shadow:var(--sh-1);}
.pblock>h2{font-size:22px;font-weight:800;color:var(--navy);letter-spacing:-.015em;
  margin-bottom:6px;display:flex;align-items:baseline;gap:11px;flex-wrap:wrap;}
.pblock>h2 .pnum{font-family:var(--mono);font-size:14px;color:#b6c4d3;font-weight:800;}
.pblock .p-meta{display:flex;flex-wrap:wrap;gap:7px;margin:10px 0 16px;}
.pblock .p-desc{font-size:14.5px;color:#384654;line-height:1.92;margin-bottom:8px;}
.pblock h3.sub{font-size:16px;font-weight:800;color:var(--primary);margin:26px 0 12px;
  display:flex;align-items:center;gap:9px;}
.pblock h3.sub::before{content:"";width:4px;height:16px;background:var(--accent);
  border-radius:2px;}

/* ---------- 11. 动效与工具类 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s cubic-bezier(.22,.8,.3,1),
  transform .6s cubic-bezier(.22,.8,.3,1);}
.reveal.in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;}
  html{scroll-behavior:auto;}
}
.tc{text-align:center;}
.mt0{margin-top:0;}.mt8{margin-top:8px;}.mt14{margin-top:14px;}.mt20{margin-top:20px;}
.mt28{margin-top:28px;}.mt40{margin-top:40px;}
.mb0{margin-bottom:0;}.mb20{margin-bottom:20px;}.mb30{margin-bottom:30px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.divider{height:1px;background:var(--line);border:none;margin:0;}

/* ---------- 12. 响应式 ---------- */
@media(max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-art{max-width:560px;}
  .prod-grid{grid-template-columns:repeat(3,1fr);}
  .f-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .inq-grid{grid-template-columns:1fr;gap:30px;}
  .with-toc{grid-template-columns:1fr;}
  .toc{position:static;display:none;}
  .g-4{grid-template-columns:repeat(2,1fr);}
  .matrix{grid-template-columns:130px repeat(3,1fr);font-size:12.5px;}
}
@media(max-width:860px){
  body{font-size:15px;}
  .sec{padding:52px 0;}
  .sec--tight{padding:40px 0;}
  nav.main-nav{
    display:none;position:fixed;top:calc(var(--head-h) + 33px);left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);flex-direction:column;
    align-items:stretch;padding:12px 16px 18px;gap:2px;z-index:89;
    box-shadow:0 16px 30px rgba(6,22,41,.14);max-height:calc(100vh - 120px);overflow:auto;
  }
  body.nav-open nav.main-nav{display:flex;}
  nav.main-nav a{padding:13px 14px;font-size:15.5px;border-radius:9px;}
  .nav-toggle{display:block;}
  .head-tel{display:none;}
  .head-act .btn{padding:9px 15px;font-size:13.5px;}
  .hero{padding:40px 0 0;}
  .hero-stats{grid-template-columns:1fr 1fr;margin-top:36px;}
  .hero-stats .st{border-right:none;border-bottom:1px solid rgba(255,255,255,.09);
    border-right:1px solid rgba(255,255,255,.09);padding:16px 14px;}
  .hero-stats .st:nth-child(2n){border-right:none;}
  .hero-stats .st b{font-size:21px;}
  .prod-grid{grid-template-columns:repeat(2,1fr);}
  .g-3,.g-4{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .field-grid{grid-template-columns:1fr;}
  .facts-row{grid-template-columns:1fr;gap:3px;padding:11px 0;}
  .facts-bd{padding:6px 18px 16px;}
  .facts-hd{padding:14px 18px;}
  .tool-panel,.form-card,.pblock{padding:20px;}
  .tool-panel .t-sub{margin-left:0;}
  .brand-txt b{font-size:15px;}
  .brand-txt small{font-size:9.5px;}
  .float-call{display:block;}
  body{padding-bottom:58px;}
  .to-top{bottom:74px;right:14px;}
  .f-grid{grid-template-columns:1fr;gap:26px;}
  .f-copy{flex-direction:column;gap:8px;text-align:center;}
  .matrix{grid-template-columns:100px repeat(3,1fr);font-size:11.5px;}
  .matrix>div{padding:9px 10px;}
}
@media(max-width:520px){
  .wrap{padding:0 15px;}
  .hero h1{font-size:26px;}
  .hero-sub{font-size:14.5px;}
  .tag{font-size:11.5px;padding:5px 11px;}
  .prod-grid{grid-template-columns:1fr;}
  .hero-stats .st b{font-size:19px;}
  .btn-row .btn{flex:1 1 auto;}
  .sec-h h2{font-size:21px;}
  .table-wrap{border-radius:9px;}
  .data-table{min-width:560px;font-size:12.8px;}
  .faq summary{padding:15px 18px;padding-right:44px;font-size:14.2px;}
  .faq .ans{padding:0 18px 18px;font-size:13.4px;}
  .blueprint{border-radius:12px;}
}

/* 打印（报价/资料打印场景） */
@media print{
  .site-head,.topbar,.float-call,.to-top,.site-foot,.btn,.inquiry{display:none !important;}
  body{background:#fff;padding:0;}
  .card,.pblock,.table-wrap{box-shadow:none;border-color:#ccc;}
  a{color:#000;}
}

/* ==========================================================================
   13. 真实素材组件（v3.0 · 厂家实拍 / 证书 / 检测报告 / 视频 / 分布图）
   ========================================================================== */

/* 13.1 照片墙 */
.photo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(238px,1fr));gap:14px;}
.photo{position:relative;margin:0;border-radius:12px;overflow:hidden;background:#0d2b47;
  border:1px solid var(--line);box-shadow:var(--sh-1);}
.photo img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;display:block;
  transition:transform .55s cubic-bezier(.22,.8,.3,1);}
.photo:hover img{transform:scale(1.05);}
.photo figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 11px;
  font-size:12.5px;color:#fff;line-height:1.5;
  background:linear-gradient(transparent,rgba(6,22,41,.9));}
.photo--wide{grid-column:span 2;}
.photo--tall img{aspect-ratio:3/4;object-position:center;}
@media(max-width:760px){.photo--wide{grid-column:span 1;}}

/* 13.2 证书墙（缩略图 + 点击看全图） */
.cert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(152px,1fr));gap:12px;}
.cert{display:block;background:#fff;border:1px solid var(--line);border-radius:10px;
  overflow:hidden;transition:.2s;box-shadow:var(--sh-1);}
.cert:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#c3d6ea;}
.cert img{width:100%;aspect-ratio:3/4;object-fit:cover;object-position:top;background:#f2f5f9;display:block;}
.cert span{display:block;padding:8px 10px 9px;font-size:12px;color:#42505e;text-align:center;line-height:1.5;}
.cert span b{display:block;font-size:11px;color:var(--gray-lt);font-weight:600;margin-top:2px;}

/* 13.3 检测报告墙 */
.report-wall{display:grid;grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:10px;}
.report-wall a{display:block;border:1px solid var(--line);border-radius:9px;overflow:hidden;
  background:#fff;transition:.2s;}
.report-wall a:hover{border-color:var(--accent);box-shadow:0 6px 18px rgba(6,22,41,.1);}
.report-wall img{width:100%;aspect-ratio:3/4;object-fit:cover;object-position:top;display:block;background:#f2f5f9;}
.report-group{margin-top:26px;}
.report-group h3{font-size:15.5px;font-weight:800;color:var(--navy);margin-bottom:4px;
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;}
.report-group .rg-meta{font-size:12.5px;color:var(--gray-2);margin-bottom:12px;}

/* 13.4 视频卡 */
.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;}
.video-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  box-shadow:var(--sh-1);}
.video-card video{width:100%;display:block;background:#061629;aspect-ratio:16/9;object-fit:cover;}
.video-card .vc-body{padding:13px 16px 15px;}
.video-card h4{font-size:14.5px;font-weight:800;color:var(--navy);margin-bottom:4px;}
.video-card p{font-size:12.5px;color:var(--gray);line-height:1.7;}

/* 13.5 实力数据带（深底大字） */
.power-band{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;
  background:rgba(255,255,255,.09);border-radius:14px;overflow:hidden;
  border:1px solid rgba(255,255,255,.12);}
.power-band .pb-i{background:var(--navy-2);padding:20px 18px;}
.power-band .pb-i b{display:block;font-family:var(--mono);font-size:clamp(21px,2.4vw,28px);
  font-weight:800;color:#fff;letter-spacing:-.01em;line-height:1.15;}
.power-band .pb-i b i{font-style:normal;font-size:13px;color:var(--primary-lt);margin-left:3px;font-weight:700;}
.power-band .pb-i span{display:block;font-size:12px;color:#8fa8c2;margin-top:4px;}

/* 13.6 项目分布图（中心辐射式，非地理轮廓） */
.map-board{position:relative;background:var(--navy-2);border-radius:16px;overflow:hidden;
  border:1px solid rgba(255,255,255,.1);padding:26px 20px;min-height:430px;}
.map-board::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(140,190,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,190,255,.07) 1px,transparent 1px);
  background-size:34px 34px;}
.map-hub{position:relative;z-index:3;margin:0 auto;width:150px;text-align:center;
  background:var(--accent);color:#fff;border-radius:12px;padding:10px 8px;font-weight:800;
  font-size:13.5px;line-height:1.4;box-shadow:0 8px 24px rgba(255,106,0,.35);}
.map-hub small{display:block;font-weight:600;font-size:11px;opacity:.9;margin-top:2px;}
.map-nodes{position:relative;z-index:3;margin-top:26px;display:grid;
  grid-template-columns:repeat(auto-fit,minmax(132px,1fr));gap:10px;}
.map-node{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:10px;padding:10px 12px;color:#cfe2f5;font-size:12.5px;line-height:1.5;}
.map-node b{display:block;color:#fff;font-size:13px;margin-bottom:2px;}
.map-node i{font-style:normal;color:#8fa8c2;font-size:11.5px;display:block;}
.map-node em{font-style:normal;color:#ffb066;font-weight:700;font-size:11.5px;}

/* 13.7 Logo（页头/页脚） */
.brand-logo{height:40px;width:40px;object-fit:contain;border-radius:10px;flex:0 0 auto;background:#fff;box-shadow:0 2px 8px rgba(6,22,41,.10);}
.brand-logo--dark{height:34px;filter:brightness(0) invert(1);opacity:.92;}
@media(max-width:860px){.brand-logo{height:32px;}.brand-logo--dark{height:30px;}}

/* 13.8 徽章条（资质速览） */
.badge-strip{display:flex;flex-wrap:wrap;gap:9px;}
.badge-strip span{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:6px 13px;color:#33404e;
  box-shadow:var(--sh-1);}
.badge-strip span::before{content:"✓";color:var(--ok);font-weight:800;}

/* 备案号（法规要求页脚展示） */
.f-copy .f-icp a { color: inherit; text-decoration: none; opacity: .78; }
.f-copy .f-icp a:hover { opacity: 1; text-decoration: underline; }