/* ==========================================================================
普众数智 官网 · style.css
分区：1) :root token 2) 基础重置 3) nav 4) hero + stat-strip
颜色/圆角/阴影全部走 CSS 变量，后续区块复用同源类名。
========================================================================== */
/* ---------- 1) Design Tokens ---------- */
:root{
--bg:#FAFBFC; --bg-alt:#F5F7FA; --dark:#0E1726;
--ink:#1A2230; --ink-2:#5B6677; --line:#E6EAF0;
--tech-blue:#2B6CF6; --tech-cyan:#22C3D6;
--warm:#FF8A3D; --amber:#FFB02E;
--grad-tech:linear-gradient(120deg,var(--tech-blue),var(--tech-cyan));
--grad-warm:linear-gradient(120deg,var(--warm),var(--amber));
--radius:18px; --shadow:0 8px 30px rgba(20,40,80,.08);
--maxw:1200px; --pad:clamp(20px,5vw,80px);
--nav-h:68px;
}
/* ---------- 2) Base Reset ---------- */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
section{padding-block:clamp(28px,4vw,56px)}
.section-dark{background:var(--dark);color:#EAF0F8}
.eyebrow{color:var(--tech-blue);font-weight:700;letter-spacing:.04em;font-size:14px;margin-bottom:10px}
.h2{font-size:clamp(26px,3.4vw,40px);font-weight:800;line-height:1.25}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:999px;
font-weight:700;cursor:pointer;border:0;transition:.2s}
.btn-primary{background:var(--grad-tech);color:#fff}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{background:transparent;border:1.5px solid currentColor}
.reveal{opacity:0;transform:translateY(24px);transition:.7s ease}
.reveal.in{opacity:1;transform:none}
/* ---------- 3) Nav（固定顶栏） ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;
background:#ffffff;
backdrop-filter:saturate(180%) blur(10px);
-webkit-backdrop-filter:saturate(180%) blur(10px);
border-bottom:1px solid transparent;transition:border-color .25s,box-shadow .25s,background .25s}
.nav.scrolled{border-bottom-color:var(--line);box-shadow:0 4px 24px rgba(20,40,80,.06)}
.nav-inner{display:flex;align-items:center;gap:18px;height:var(--nav-h)}
.brand{display:inline-flex;align-items:baseline;gap:8px;font-size:20px;white-space:nowrap}
.brand b{background:var(--grad-tech);-webkit-background-clip:text;background-clip:text;
-webkit-text-fill-color:transparent;font-weight:900;letter-spacing:.02em}
.brand span{color:var(--ink-2);font-size:13px;font-weight:700;letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:20px;margin-left:auto;flex-wrap:wrap}
.nav-links a{position:relative;color:var(--ink-2);font-size:17px;font-weight:600;
padding:6px 0;transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
background:var(--grad-tech);border-radius:2px;transition:right .25s}
.nav-links a:hover::after,.nav-links a.active::after{right:0}
.nav-links a.active{color:var(--ink)}
.nav-cta{padding:10px 22px;font-size:16px}
.nav-toggle{display:none;background:transparent;border:0;cursor:pointer;
font-size:24px;line-height:1;color:var(--ink);padding:4px 6px;margin-left:auto}
@media (max-width:1024px){
.nav-cta{margin-left:auto}
.nav-toggle{display:inline-flex}
.nav-links{position:absolute;top:var(--nav-h);left:0;right:0;
flex-direction:column;align-items:stretch;gap:0;margin-left:0;
background:rgba(250,251,252,.96);
backdrop-filter:saturate(180%) blur(10px);
-webkit-backdrop-filter:saturate(180%) blur(10px);
border-bottom:1px solid var(--line);
max-height:0;overflow:hidden;transition:max-height .3s ease}
.nav.nav-open .nav-links{max-height:70vh}
.nav-links a{padding:14px var(--pad);border-top:1px solid var(--line)}
.nav-links a::after{display:none}
}
/* ---------- 4) Hero + stat-strip ---------- */
.hero{position:relative;overflow:hidden;padding-top:calc(var(--nav-h) + clamp(48px,8vw,96px))}
.hero::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
background:
radial-gradient(60% 80% at 78% 18%,rgba(43,108,246,.30),transparent 60%),
radial-gradient(50% 70% at 12% 90%,rgba(34,195,214,.22),transparent 60%),
radial-gradient(40% 60% at 50% 0%,rgba(255,138,61,.12),transparent 55%)}
.hero-inner{position:relative;z-index:1}
.hero .eyebrow{color:var(--tech-cyan)}
.hero-title{font-size:clamp(32px,5.4vw,60px);font-weight:900;line-height:1.18;
letter-spacing:.01em;margin-bottom:20px}
.grad{background:var(--grad-warm);-webkit-background-clip:text;background-clip:text;
-webkit-text-fill-color:transparent}
.hero-sub{font-size:clamp(15px,1.7vw,19px);color:#B7C4D6;max-width:680px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:clamp(40px,6vw,64px)}
.hero .btn-ghost{color:#EAF0F8}
.stat-strip{list-style:none;display:grid;grid-template-columns:repeat(6,1fr);
gap:14px;padding:24px;border-radius:var(--radius);
background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.10)}
.stat-strip li{display:flex;flex-direction:column;gap:6px;text-align:left}
.stat-strip b{font-size:clamp(24px,3vw,34px);font-weight:900;line-height:1;white-space:nowrap;
background:var(--grad-tech);-webkit-background-clip:text;background-clip:text;
-webkit-text-fill-color:transparent}
.stat-strip b i{font-style:normal;font-size:.5em;font-weight:800;margin-left:2px}
.stat-strip span{font-size:13px;color:#9FB0C4;line-height:1.4}
@media (max-width:920px){
.stat-strip{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:560px){
.stat-strip{grid-template-columns:repeat(2,1fr);padding:18px}
.hero-cta .btn{flex:1 1 auto;justify-content:center}
}
/* ---------- 5) 通用栅格 + 卡片（Task 3 复用） ---------- */
.h2{margin-bottom:8px}
.section-dark .eyebrow{color:var(--tech-cyan)}
/* 三列栅格：桌面 3 列，平板 2 列，移动单列 */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px}
/* 自适应栅格：repeat(auto-fit,minmax(220px,1fr)) */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px;margin-top:36px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
padding:30px 26px;box-shadow:var(--shadow);
transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(20,40,80,.12);
border-color:transparent}
.card h3{font-size:20px;font-weight:800;margin-bottom:10px}
.card p{color:var(--ink-2);font-size:15px}
/* ---------- 5a) 行业痛点 #pain ---------- */
.pain .num{display:inline-block;font-size:34px;font-weight:900;line-height:1;
margin-bottom:14px;background:var(--grad-tech);-webkit-background-clip:text;
background-clip:text;-webkit-text-fill-color:transparent}
.pain-foot{margin-top:36px;font-size:clamp(16px,1.9vw,20px);font-weight:600;
color:var(--ink);line-height:1.7;max-width:920px}
.pain-foot b{font-weight:800;background:var(--grad-warm);-webkit-background-clip:text;
background-clip:text;-webkit-text-fill-color:transparent}
@media (max-width:920px){
.grid3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
.grid3{grid-template-columns:1fr}
}
/* ---------- 5b) AI 情感底座 #base ---------- */
.cap-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
padding:28px 24px;box-shadow:var(--shadow);
transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.cap-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(20,40,80,.12);
border-color:transparent}
.cap-ic{display:inline-flex;align-items:center;justify-content:center;
width:52px;height:52px;border-radius:14px;margin-bottom:16px;
color:var(--tech-blue);background:rgba(43,108,246,.10)}
.cap-ic svg{width:28px;height:28px}
.cap-card h3{font-size:19px;font-weight:800;margin-bottom:9px}
.cap-card p{color:var(--ink-2);font-size:14.5px;line-height:1.65}
/* ---------- 5c) 三大产品系列 #series（深色暖带，重点区） ---------- */
/* 暖橙按钮变体：复用 .btn 基类，仅在本区与系列 CTA 使用，作点睛色 */
.btn-warm{background:var(--grad-warm);color:#1A1206;box-shadow:0 8px 24px rgba(255,138,61,.22)}
.btn-warm:hover{filter:brightness(1.06);transform:translateY(-1px)}
/* 系列大卡：桌面左图右文，移动端上下堆叠 */
.series-card{display:grid;grid-template-columns:minmax(0,0.92fr) minmax(0,1.08fr);
gap:clamp(28px,4vw,56px);align-items:center;
margin-top:clamp(36px,5vw,60px);padding:clamp(26px,3.4vw,42px);
background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.10);
border-radius:calc(var(--radius) + 6px);
transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}
.series-card:hover{transform:translateY(-4px);border-color:rgba(255,176,46,.32);
box-shadow:0 22px 54px rgba(0,0,0,.32)}
/* 偶数卡图右文左：视觉块换到第 2 列，正文换到第 1 列 */
.series-reverse .series-visual{order:2}
.series-reverse .series-body{order:1}
/* 视觉占位块：暖色光晕 + 描边 SVG 插画 */
.series-visual{position:relative;display:flex;flex-direction:column;align-items:center;
justify-content:center;gap:14px;padding:clamp(24px,3vw,40px);min-height:260px;
border-radius:var(--radius);overflow:hidden;
background:
radial-gradient(70% 80% at 50% 30%,rgba(255,138,61,.16),transparent 70%),
rgba(255,255,255,.03);
border:1px solid rgba(255,255,255,.08)}
.series-visual svg{width:clamp(140px,16vw,190px);height:auto;
color:var(--amber);filter:drop-shadow(0 6px 18px rgba(255,138,61,.28))}
.series-cap{font-size:12.5px;color:#9FB0C4;text-align:center;line-height:1.5}
/* 正文区 */
.series-tag{display:inline-block;font-size:14px;font-weight:800;letter-spacing:.02em;
padding:7px 16px;border-radius:999px;color:#1A1206;background:var(--grad-warm);
box-shadow:0 6px 18px rgba(255,138,61,.22)}
.series-lead{margin-top:16px;font-size:clamp(16px,1.8vw,19px);font-weight:600;
color:#E4ECF6;line-height:1.65}
/* 卖点列表：暖色勾号 marker */
.ticks{list-style:none;margin-top:20px;display:grid;gap:11px}
.ticks li{position:relative;padding-left:30px;color:#C7D2E0;font-size:15px;line-height:1.6}
.ticks li::before{content:"";position:absolute;left:0;top:3px;width:18px;height:18px;
border-radius:50%;background:var(--grad-warm);
-webkit-mask:url("data:image/svg+xml;utf8,") center/12px no-repeat;
mask:url("data:image/svg+xml;utf8,") center/12px no-repeat}
/* 场景 / 可定制元信息行 */
.series-meta{margin-top:16px;display:flex;gap:12px;align-items:baseline;
color:#AEBCCE;font-size:14px;line-height:1.6}
.series-meta b{flex:0 0 auto;font-weight:800;font-size:12.5px;letter-spacing:.04em;
color:var(--amber);padding-top:1px;white-space:nowrap}
.series-meta span{flex:1 1 auto}
.series-body .btn-warm{margin-top:24px}
/* 收束句 */
.series-foot{margin-top:clamp(34px,4vw,52px);text-align:center;
font-size:clamp(16px,1.9vw,20px);color:#C7D2E0;line-height:1.7}
.series-foot b{font-weight:800;background:var(--grad-warm);-webkit-background-clip:text;
background-clip:text;-webkit-text-fill-color:transparent}
@media (max-width:920px){
.series-card{grid-template-columns:1fr;gap:24px}
/* 移动端统一图在上、文在下，撤销交错顺序 */
.series-reverse .series-visual{order:0}
.series-reverse .series-body{order:0}
.series-visual{min-height:200px}
}
@media (max-width:560px){
.series-meta{flex-direction:column;gap:4px}
}
/* ---------- 6) 定制开发流程 #process（卡片式六步） ---------- */
.timeline{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);
gap:22px;margin-top:40px}
.step{position:relative;display:flex;flex-direction:column;background:#fff;
border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;
box-shadow:var(--shadow);
transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.step:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(20,40,80,.12);
border-color:transparent}
.step-top{display:flex;align-items:center;gap:14px;margin-bottom:13px}
.step-no{flex:none;width:48px;height:48px;border-radius:50%;display:inline-flex;
align-items:center;justify-content:center;font-size:21px;font-weight:900;color:#fff;
background:var(--grad-tech);box-shadow:0 8px 20px rgba(43,108,246,.28)}
.step-top h4{font-size:19px;font-weight:800;line-height:1.3}
.step>p{color:var(--ink-2);font-size:15px;line-height:1.7;margin-bottom:16px}
.step-foot{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto}
.step-foot span{display:inline-flex;align-items:center;gap:6px;font-size:13px;
color:var(--ink-2);background:var(--bg-alt);border:1px solid var(--line);
border-radius:999px;padding:5px 13px}
.step-foot b{font-weight:800;color:var(--tech-blue);font-size:12.5px}
#process .note{margin-top:26px;color:var(--ink-2);font-size:13.5px;
padding-left:14px;border-left:3px solid var(--line)}
/* 桌面端 U 型布局：上排 1→2→3 向右，转折下行，下排 4←5←6 向左，箭头串联 */
@media (min-width:921px){
.timeline{grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(2,auto);
column-gap:46px;row-gap:64px;position:relative}
/* 下排逆序排布，使 step4 落在 step3 正下方，形成 U 字 */
.timeline .step:nth-child(4){grid-column:3;grid-row:2}
.timeline .step:nth-child(5){grid-column:2;grid-row:2}
.timeline .step:nth-child(6){grid-column:1;grid-row:2}
/* 箭头徽标：渐变圆 + 方向符号，置于卡片间隙中点 */
.timeline .step::after{position:absolute;width:32px;height:32px;border-radius:50%;
display:flex;align-items:center;justify-content:center;
font-size:17px;font-weight:900;color:#fff;line-height:1;
background:var(--grad-tech);box-shadow:0 6px 16px rgba(43,108,246,.32);z-index:4}
.timeline .step:nth-child(1)::after,
.timeline .step:nth-child(2)::after{content:"→";top:50%;right:-23px;transform:translate(50%,-50%)}
.timeline .step:nth-child(3)::after{content:"↓";left:50%;bottom:-32px;transform:translate(-50%,50%)}
.timeline .step:nth-child(4)::after,
.timeline .step:nth-child(5)::after{content:"←";top:50%;left:-23px;transform:translate(-50%,-50%)}
}
@media (max-width:920px){ .timeline{grid-template-columns:repeat(2,1fr)} }
@media (max-width:560px){ .timeline{grid-template-columns:1fr} }
/* ---------- 7) 合作模式 + 按量供货 #coop ---------- */
.section-alt{background:var(--bg-alt)}
/* 三档卡阶梯：模式三加边框高亮 + 角标"全流程" */
.tier{position:relative;background:#fff;border:1px solid var(--line);text-align:center;
border-radius:var(--radius);padding:38px 28px;box-shadow:var(--shadow);
transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.tier:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(20,40,80,.12)}
.tier-title{font-size:clamp(20px,2.2vw,25px);font-weight:800;line-height:1.35;margin-bottom:14px}
.tier-no{color:var(--tech-blue);font-weight:900}
.tier p{color:var(--ink-2);font-size:15px;line-height:1.7}
.tier-hl{border:2px solid transparent;
background:linear-gradient(#fff,#fff) padding-box,var(--grad-tech) border-box;
box-shadow:0 18px 44px rgba(43,108,246,.16)}
.tier-hl .tier-no{color:var(--tech-blue)}
.tier-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);
font-size:12px;font-weight:800;letter-spacing:.04em;color:#fff;background:var(--grad-tech);
padding:5px 14px;border-radius:999px;box-shadow:0 6px 16px rgba(43,108,246,.28)}
.coop-cta{margin-top:34px;text-align:center}
/* ---------- 8) 兼容与适配 #compat（.chip 标签墙） ---------- */
.compat-ic{display:inline-flex;align-items:center;justify-content:center;
width:62px;height:62px;border-radius:50%;margin-bottom:18px;
color:#fff;background:var(--grad-tech);box-shadow:0 10px 26px rgba(43,108,246,.26)}
.compat-ic svg{width:34px;height:34px}
.compat .card h3{font-size:19px;margin-bottom:9px}
.compat .card p{font-size:14.5px;line-height:1.65}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.chip{font-size:13.5px;font-weight:700;color:var(--ink-2);
padding:8px 16px;border-radius:999px;border:1.5px solid var(--line);
background:#fff;transition:.2s;cursor:default}
.chip:hover{color:#fff;border-color:transparent;background:var(--grad-tech);
transform:translateY(-2px);box-shadow:0 8px 20px rgba(43,108,246,.24)}
.compat-note{margin-top:16px;font-size:12.5px;color:var(--ink-2);
padding-left:12px;border-left:3px solid var(--line)}
/* ---------- 9) 落地形态 / 案例 #cases ---------- */
.cases-sub{color:var(--ink-2);font-size:clamp(15px,1.6vw,17px);max-width:760px;margin:14px 0 36px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.gcase{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
overflow:hidden;box-shadow:var(--shadow);transition:.25s}
.gcase:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(20,40,80,.14)}
.gcase-media{position:relative;aspect-ratio:1/1;background:var(--bg-alt);
display:flex;align-items:center;justify-content:center;color:var(--tech-blue);overflow:hidden}
.gcase-media img{width:100%;height:100%;object-fit:cover;object-position:center}
.gcase-media svg{width:46%;height:46%;opacity:.85}
.gcase-media[data-img]::after{content:attr(data-img);position:absolute;left:10px;bottom:10px;
font-size:11px;color:var(--ink-2);background:rgba(255,255,255,.82);
padding:3px 8px;border-radius:999px;border:1px solid var(--line)}
.gcase-body{padding:18px 20px 22px}
.gcase-tag{display:inline-block;font-size:12px;font-weight:700;color:var(--warm);
background:rgba(255,138,61,.12);padding:3px 10px;border-radius:999px;margin-bottom:10px}
.gcase-body h3{font-size:18px;font-weight:800;margin-bottom:8px}
.cap{color:var(--ink-2);font-size:14px;line-height:1.65}
.cases-foot{margin-top:30px;font-size:clamp(15px,1.7vw,18px);text-align:center;color:var(--ink)}
.cases-foot b{background:var(--grad-warm);-webkit-background-clip:text;background-clip:text;
-webkit-text-fill-color:transparent}
/* ---------- 10) 关于我们 / 服务保障 #about ---------- */
.about-en{color:var(--tech-blue);font-weight:600;letter-spacing:.02em;margin:8px 0 36px;
font-size:clamp(13px,1.5vw,16px)}
.about-grid{display:grid;grid-template-columns:1fr;gap:30px;align-items:start;margin-top:30px}
.about-h3{font-size:19px;font-weight:800;margin-bottom:16px;padding-left:12px;
border-left:4px solid;border-image:var(--grad-tech) 1}
.about-intro p{color:var(--ink-2);font-size:15.5px;line-height:2;max-width:none}
/* 服务卡：图标上置、内容居中、五列自适应 */
.svc-grid{list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:4px}
.svc{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;
background:#fff;border:1px solid var(--line);border-radius:var(--radius);
padding:26px 18px;box-shadow:var(--shadow);transition:.22s}
.svc:hover{transform:translateY(-6px);box-shadow:0 16px 38px rgba(20,40,80,.12);border-color:transparent}
.svc-ic{flex:none;width:58px;height:58px;border-radius:50%;display:inline-flex;
align-items:center;justify-content:center;color:#fff;background:var(--grad-tech);
box-shadow:0 10px 24px rgba(43,108,246,.26);margin-bottom:8px}
.svc-ic svg{width:30px;height:30px}
.svc b{display:block;font-size:16px;font-weight:800;margin-bottom:4px}
.svc p{color:var(--ink-2);font-size:13.5px;line-height:1.62}
@media (max-width:1040px){ .svc-grid{grid-template-columns:repeat(3,1fr)} }
@media (max-width:920px){
.gallery{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:620px){ .svc-grid{grid-template-columns:repeat(2,1fr)} }
@media (max-width:560px){
.gallery{grid-template-columns:1fr}
}
/* ---------- 12) 底部 CTA + 留资表单 #contact ---------- */
.contact-grid{display:grid;grid-template-columns:0.95fr 1.05fr;gap:48px;align-items:start}
.contact-intro .h2{margin:8px 0 16px}
.contact-lead{color:#C7D2E0;font-size:clamp(15px,1.7vw,17px);line-height:1.8;margin-bottom:22px;max-width:480px}
.contact-points{list-style:none;display:flex;flex-direction:column;gap:12px}
.contact-points li{color:#E4ECF6;font-size:15px;padding-left:2px}
.lead-form{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
border-radius:var(--radius);padding:clamp(22px,3vw,34px)}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field label{font-size:13.5px;color:#AEBCCE;font-weight:600}
.field label i{color:var(--warm);font-style:normal}
.lead-form input,.lead-form select,.lead-form textarea{
width:100%;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.16);
border-radius:11px;padding:12px 14px;color:#EAF0F8;font-size:14.5px;font-family:inherit;
transition:.18s;outline:none}
.lead-form input::placeholder,.lead-form textarea::placeholder{color:#7E8DA1}
.lead-form select{appearance:none;cursor:pointer;
background-image:linear-gradient(45deg,transparent 50%,#9FB0C4 50%),linear-gradient(135deg,#9FB0C4 50%,transparent 50%);
background-position:calc(100% - 18px) 19px,calc(100% - 13px) 19px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.lead-form select option{color:#1A2230}
.lead-form input:focus,.lead-form select:focus,.lead-form textarea:focus{
border-color:var(--tech-cyan);background:rgba(255,255,255,.07)}
.lead-form .invalid{border-color:#ff6b6b!important}
.lead-form textarea{resize:vertical;min-height:80px}
.form-submit{width:100%;justify-content:center;margin-top:6px}
.form-hint{margin-top:12px;font-size:12.5px;color:#9FB0C4;text-align:center}
/* ---------- 13) Footer ---------- */
.footer{background:#0A1019;color:#AEBCCE}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;
padding-top:48px;padding-bottom:36px}
.footer .brand{font-size:20px;font-weight:800}
.footer .brand b{background:var(--grad-tech);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.footer .brand span{color:#7E8DA1;font-size:13px;margin-left:6px;letter-spacing:.08em}
.footer-brand p{margin-top:12px;font-size:13.5px;line-height:1.7;max-width:300px;color:#8D9BB0}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#AEBCCE;transition:.2s}
.footer-links a:hover{color:#fff}
.footer-contact p{font-size:13px;color:#7E8DA1;margin-bottom:6px}
.footer-contact a{color:#EAF0F8;font-size:15px;font-weight:600}
.footer-contact a:hover{color:var(--tech-cyan)}
.footer-icp{margin-top:14px}
.footer-bar{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;font-size:12.5px;color:#6B7889}
@media (max-width:920px){
.contact-grid{grid-template-columns:1fr;gap:30px}
.footer-inner{grid-template-columns:1fr 1fr;gap:24px}
}
@media (max-width:560px){
.field-row{grid-template-columns:1fr}
.footer-inner{grid-template-columns:1fr}
}
/* ==========================================================================
14) 客户定制改版（v6）：品牌 logo / 4 能力卡居中 / 系列与案例真实图 / 二维码
========================================================================== */
/* 导航品牌 logo（替换文字标） */
.brand img{height:54px;width:auto;display:block}
@media (max-width:560px){ .brand img{height:44px} }
/* 核心能力：四宫格 + 图标居中 + 渐变圆形徽标 */
.base-grid{grid-template-columns:repeat(4,1fr)}
.cap-card{text-align:center;padding:34px 24px;display:flex;flex-direction:column;align-items:center}
.cap-ic{width:64px;height:64px;border-radius:50%;margin-bottom:18px;color:#fff;
background:var(--grad-tech);box-shadow:0 10px 26px rgba(43,108,246,.28)}
.cap-ic svg{width:32px;height:32px}
.cap-card h3{font-size:18.5px}
.cap-card p{font-size:14px}
@media (max-width:920px){ .base-grid{grid-template-columns:repeat(2,1fr)} }
@media (max-width:560px){ .base-grid{grid-template-columns:1fr} }
/* 产品系列：真实图片装裱（暖色边框 + 圆角） */
.series-visual{padding:12px;min-height:0;gap:10px}
.series-visual img{width:100%;height:auto;object-fit:contain;
border-radius:var(--radius);box-shadow:0 14px 36px rgba(0,0,0,.3)}
/* 落地形态：真实图片填充（保留 16:10 裁切，与 .gcase-media img 一致） */
/* 页脚企业微信二维码 */
.footer-qr{margin:8px 0 14px;max-width:280px}
.footer-qr img{width:100%;max-width:280px;height:auto;border-radius:14px;background:#fff;
padding:6px;box-shadow:0 10px 26px rgba(0,0,0,.30)}
.footer-qr span{display:block;margin-top:12px;font-size:13.5px;color:#9DAABE;
letter-spacing:.02em;text-align:center}
/* 页脚双二维码并排（公众号 + 企业号），等尺寸对齐 */
.footer-qrs{display:flex;gap:16px;flex-wrap:wrap;margin:6px 0 4px}
.footer-qrs .footer-qr{margin:0;max-width:134px}
.footer-qrs .footer-qr img{width:134px;height:134px;object-fit:contain;
padding:6px;box-sizing:border-box}
.footer-qrs .footer-qr span{margin-top:9px;font-size:12.5px}
@media (max-width:560px){
.footer-qrs .footer-qr{max-width:40vw}
.footer-qrs .footer-qr img{width:40vw;height:40vw}
}
/* 页脚邮箱（置于品牌简介下方） */
.footer-mail{margin-top:14px;font-size:13px;color:#7E8DA1}
.footer-mail a{color:#EAF0F8;font-size:15px;font-weight:600}
.footer-mail a:hover{color:var(--tech-cyan)}
/* ==========================================================================
15) 客户定制改版（v8）：流程卡 / 合作模式 / 服务卡 / 备案号 等已并入各区块
========================================================================== */
.footer-bar a{color:#8D9BB0;transition:color .2s}
.footer-bar a:hover{color:var(--tech-cyan)}
/* ==========================================================================
16) 客户定制改版（v9）：兼容卡图文同行 / 页脚 logo + 文案整体放大
========================================================================== */
/* #compat：图标 + 标题同一行（左图右标题） */
.compat-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.compat .compat-ic{width:52px;height:52px;margin-bottom:0;flex:none}
.compat .compat-ic svg{width:28px;height:28px}
.compat .compat-head h3{margin-bottom:0;font-size:19px;line-height:1.3}
/* 页脚左下角：文字标改公司 logo，下方文案整体放大 */
.footer-brand .brand img{height:66px;width:auto;display:block}
.footer-brand p{margin-top:18px;font-size:17px;line-height:1.9;max-width:340px;color:#A4B2C6}
@media (max-width:560px){ .footer-brand .brand img{height:56px} }
/* ==========================================================================
17) GEO 内容页（ai-hardware-solution / board-agent / turnkey-solution）
复用 token，新增：深色页眉 · BLUF 答案块 · 规格/对比表 · FAQ 折叠 · 内链卡
========================================================================== */
/* —— 17a) 深色页眉 —— */
.geo-head{position:relative;overflow:hidden;background:var(--dark);color:#EAF0F8;
padding-top:calc(var(--nav-h) + clamp(34px,6vw,68px));
padding-bottom:clamp(34px,5vw,60px)}
.geo-head::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
background:
radial-gradient(58% 80% at 82% 12%,rgba(43,108,246,.28),transparent 60%),
radial-gradient(50% 70% at 8% 100%,rgba(34,195,214,.20),transparent 60%),
radial-gradient(40% 60% at 50% 0%,rgba(255,138,61,.10),transparent 55%)}
.geo-head .wrap{position:relative;z-index:1}
.crumb{font-size:13.5px;color:#9FB0C4;margin-bottom:14px}
.crumb a{color:#9FB0C4;transition:.2s}
.crumb a:hover{color:var(--tech-cyan)}
.crumb i{color:#5B6677;font-style:normal;margin:0 9px}
.geo-title{font-size:clamp(23px,2.7vw,34px);font-weight:900;line-height:1.25;
letter-spacing:.01em;margin-bottom:16px;text-wrap:balance}
.geo-title .grad{background:var(--grad-warm);-webkit-background-clip:text;background-clip:text;
-webkit-text-fill-color:transparent}
.geo-lead{font-size:clamp(15px,1.7vw,18px);color:#B7C4D6;max-width:780px;line-height:1.85}
/* —— 17b) BLUF 答案块（AI 引擎首抓段） —— */
.bluf{margin-top:clamp(24px,4vw,34px);background:rgba(255,255,255,.05);
border:1px solid rgba(255,255,255,.12);border-left:4px solid var(--tech-cyan);
border-radius:var(--radius);padding:clamp(20px,3vw,30px)}
.bluf .bluf-tag{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:800;
letter-spacing:.10em;color:var(--tech-cyan);margin-bottom:12px}
.bluf p{font-size:clamp(15px,1.7vw,17.5px);line-height:1.9;color:#E8EEF6;font-weight:600}
.bluf b{font-weight:900;background:var(--grad-warm);-webkit-background-clip:text;
background-clip:text;-webkit-text-fill-color:transparent}
/* —— 17c) 内容区通用排版 —— */
.geo-sec{padding-block:clamp(30px,4.4vw,58px)}
.geo-sec .h2{margin-bottom:6px}
.sec-eyebrow{color:var(--tech-blue);font-weight:800;letter-spacing:.04em;font-size:13.5px;
margin-bottom:8px}
.sec-note{margin-top:18px;color:var(--ink-2);font-size:13.5px;line-height:1.7;
padding-left:14px;border-left:3px solid var(--line);max-width:880px}
/* —— 17d) 数据表：规格表（2 列）& 对比表（多列）共用 —— */
.tbl-wrap{margin-top:28px;overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);
box-shadow:var(--shadow);-webkit-overflow-scrolling:touch}
table.dtbl{width:100%;border-collapse:collapse;background:#fff;min-width:560px}
.dtbl th,.dtbl td{padding:14px 18px;text-align:left;vertical-align:top;
border-bottom:1px solid var(--line);font-size:15px;line-height:1.62;color:var(--ink)}
.dtbl thead th{background:var(--bg-alt);font-weight:800;font-size:13.5px;
color:var(--ink);letter-spacing:.02em;white-space:nowrap}
.dtbl tbody th{font-weight:800;background:#fff;white-space:nowrap;color:var(--ink)}
.dtbl tbody tr:last-child td,.dtbl tbody tr:last-child th{border-bottom:0}
.dtbl tbody tr:hover{background:rgba(43,108,246,.035)}
.dtbl td p{color:var(--ink-2);font-size:14px;margin-top:3px}
/* 高亮列：我们的方案 */
.dtbl thead th.col-hl{color:#fff;background:var(--grad-tech)}
.dtbl td.col-hl{background:rgba(43,108,246,.05);font-weight:700;color:var(--ink)}
.dtbl .em{color:var(--tech-blue);font-weight:800}
.dtbl tr.row-total th,.dtbl tr.row-total td{background:var(--bg-alt);font-weight:800;font-size:15.5px}
.dtbl tr.row-total td.col-hl{background:rgba(43,108,246,.10);color:var(--tech-blue)}
/* —— 17e) FAQ 折叠（文本常驻 DOM，利于抓取） —— */
.faq{margin-top:28px;display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;
box-shadow:var(--shadow);overflow:hidden;transition:border-color .2s}
.faq-item[open]{border-color:rgba(43,108,246,.35)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;
font-weight:800;font-size:clamp(15.5px,1.7vw,17px);line-height:1.5;color:var(--ink);
display:flex;align-items:center;justify-content:space-between;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:none;font-size:24px;font-weight:400;line-height:1;
color:var(--tech-blue);transition:transform .22s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-q{display:inline-flex;gap:10px}
.faq-q em{font-style:normal;color:var(--tech-blue);font-weight:900}
.faq-a{padding:0 22px 20px;color:var(--ink-2);font-size:15px;line-height:1.85}
/* —— 17f) 解决方案内链卡（首页 + 子页互链） —— */
.solu-grid{margin-top:36px}
a.solu-card{display:flex;flex-direction:column;text-decoration:none;
background:#fff;border:1px solid var(--line);border-radius:var(--radius);
padding:30px 26px;box-shadow:var(--shadow);
transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
a.solu-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(20,40,80,.12);
border-color:transparent}
.solu-card .solu-tag{font-size:12.5px;font-weight:800;color:var(--tech-blue);
letter-spacing:.04em;margin-bottom:10px}
.solu-card h3{font-size:20px;font-weight:800;margin-bottom:10px;color:var(--ink)}
.solu-card p{color:var(--ink-2);font-size:14.5px;line-height:1.7;flex:1}
.solu-card .solu-more{margin-top:16px;font-weight:800;font-size:14.5px;color:var(--tech-blue);
display:inline-flex;align-items:center;gap:6px;transition:gap .2s}
a.solu-card:hover .solu-more{gap:12px}
/* —— 17g) 底部转化带 —— */
.geo-cta{background:var(--dark);color:#EAF0F8;text-align:center}
.geo-cta .h2{color:#fff}
.geo-cta p{margin:12px auto 26px;max-width:620px;color:#B7C4D6;font-size:clamp(15px,1.7vw,17px);line-height:1.8}
.geo-cta .btn-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.geo-cta .btn-ghost{color:#EAF0F8}
@media (max-width:560px){
.dtbl th,.dtbl td{padding:12px 14px;font-size:14px}
.faq-item summary{padding:16px 18px}
.faq-a{padding:0 18px 18px}
}