/* Acute 锐角插件 —— 站点样式 */
:root{
  --ink:#0f172a; --ink-2:#1e293b; --muted:#5b6474; --line:#e6e9ef;
  --bg:#ffffff; --soft:#f5f7fb; --navy:#0b1220; --navy-2:#111a2e;
  --brand:#ff5a1f; --brand-d:#e2470f; --brand-soft:#fff1eb;
  --blue:#2f6bff; --green:#13a26b;
  --radius:14px; --shadow:0 10px 30px rgba(15,23,42,.08);
  --max:1180px;
  --font:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.25;margin:0 0 .5em;letter-spacing:-.01em}
p{margin:0 0 1em}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:99}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font-weight:600;font-size:15px;border:1.5px solid transparent;cursor:pointer;transition:.2s;font-family:inherit;white-space:nowrap}
.btn svg{width:18px;height:18px;flex:none}
.eyebrow svg{width:16px;height:16px;flex:none}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-d);transform:translateY(-1px)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn-outline{border-color:var(--line);color:var(--ink);background:#fff}
.btn-outline:hover{border-color:var(--ink)}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--navy);color:#b7c0d1;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;min-height:36px;gap:16px;flex-wrap:wrap}
.topbar a:hover{color:#fff}
.topbar .tb-items{display:flex;gap:18px;flex-wrap:wrap}
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.6) blur(10px);border-bottom:1px solid var(--line)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px}
.logo img{width:40px;height:40px;object-fit:contain;flex:none}
.logo small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.04em;margin-top:-2px}
.nav{display:flex;align-items:center;gap:28px}
.nav ul{display:flex;gap:26px;list-style:none;margin:0;padding:0}
.nav ul a{font-size:15px;color:var(--ink-2);font-weight:500}
.nav ul a:hover,.nav ul a[aria-current="page"]{color:var(--brand)}
.nav ul a[aria-current="page"]{font-weight:700}
.lang{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;font-size:13px;font-weight:600}
.lang a{padding:6px 12px;color:var(--muted)}
.lang a[aria-current="true"]{background:var(--ink);color:#fff}
.menu-btn{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;padding:8px}
.menu-btn span{display:block;height:2px;background:var(--ink);margin:6px 0;border-radius:2px}

/* ---------- 首屏 ---------- */
.hero{background:radial-gradient(1200px 500px at 85% -10%,rgba(255,90,31,.28),transparent 60%),radial-gradient(900px 500px at 0% 120%,rgba(47,107,255,.25),transparent 60%),var(--navy);color:#fff;padding:80px 0 90px;overflow:hidden}
.hero .container{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#ffd2c0;background:rgba(255,90,31,.14);border:1px solid rgba(255,90,31,.35);padding:5px 12px;border-radius:999px;margin-bottom:22px}
.hero h1{font-size:clamp(32px,4.6vw,52px);font-weight:800;margin-bottom:18px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#ff7a45,#ffb36b);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{font-size:18px;color:#c8d0de;max-width:560px;margin-bottom:30px}
.hero .actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:40px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;max-width:560px}
.hero-stats b{display:block;font-size:26px;font-weight:800;color:#fff}
.hero-stats span{font-size:13px;color:#9aa6bb}
.hero-visual{position:relative}
.hero-visual svg{width:100%;height:auto;filter:drop-shadow(0 30px 60px rgba(0,0,0,.45))}

/* ---------- 通用区块 ---------- */
section{scroll-margin-top:72px}
.section{padding:88px 0}
.section.soft{background:var(--soft)}
.section-head{text-align:center;max-width:720px;margin:0 auto 48px}
.section-head .kicker{color:var(--brand);font-weight:700;font-size:13px;letter-spacing:.12em;text-transform:uppercase}
.section-head h2{font-size:clamp(26px,3.2vw,38px);margin-top:8px}
.section-head p{color:var(--muted);font-size:17px}

/* 软件支持条 */
.hosts{border-bottom:1px solid var(--line);background:#fff}
.hosts .container{display:flex;align-items:center;justify-content:center;gap:40px;padding-top:26px;padding-bottom:26px;flex-wrap:wrap;color:var(--muted);font-weight:600}
.hosts .chip{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--ink-2)}
.hosts .chip i{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;color:#fff;font-style:normal;font-weight:800;font-size:12px}

/* 产品卡片 */
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;display:flex;flex-direction:column;transition:.25s;position:relative}
.product:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.product.featured{border:2px solid var(--brand)}
.product .badge{position:absolute;top:18px;right:18px;background:var(--brand-soft);color:var(--brand-d);font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px}
.product .p-icon{width:56px;height:56px;border-radius:14px;display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px;margin-bottom:18px}
.product h3{font-size:22px;margin-bottom:6px}
.product .compat{font-size:13px;color:var(--muted);margin-bottom:14px}
.product ul{list-style:none;padding:0;margin:0 0 24px;flex:1}
.product li{padding:7px 0 7px 26px;position:relative;font-size:15px;color:var(--ink-2);border-bottom:1px dashed var(--line)}
.product li:last-child{border-bottom:0}
.product li::before{content:"";position:absolute;left:2px;top:14px;width:12px;height:7px;border-left:2px solid var(--green);border-bottom:2px solid var(--green);transform:rotate(-45deg)}
.c-cdr{background:linear-gradient(135deg,#1aa34a,#0f7a37)}
.c-ai{background:linear-gradient(135deg,#ff9a00,#e86a00)}
.c-cad{background:linear-gradient(135deg,#e5303b,#a8121c)}

/* 功能 tab */
.tabs{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:32px}
.tab{border:1px solid var(--line);background:#fff;padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer;color:var(--ink-2);font-family:inherit}
.tab:hover{border-color:var(--ink-2)}
.tab[aria-selected="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feature{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;transition:.2s}
.feature:hover{border-color:#ffc2aa;box-shadow:0 8px 20px rgba(255,90,31,.08)}
.feature .f-ico{width:40px;height:40px;border-radius:10px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;margin-bottom:12px}
.feature .f-ico svg{width:22px;height:22px}
.feature h3{font-size:16px;margin-bottom:6px}
.feature p{font-size:14px;color:var(--muted);margin:0}
.feature .tag{display:inline-block;font-size:11px;font-weight:700;color:var(--blue);background:#eef3ff;border-radius:6px;padding:1px 7px;margin-left:6px;vertical-align:2px}
.feature[hidden]{display:none}
.more-note{text-align:center;color:var(--muted);margin-top:28px;font-size:15px}

/* CAD / AI 双栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split + .split{margin-top:80px}
.split.rev .split-text{order:2}
.split h2{font-size:clamp(24px,3vw,34px)}
.split .kicker{color:var(--brand);font-weight:700;font-size:13px;letter-spacing:.12em;text-transform:uppercase}
.split p{color:var(--muted)}
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 22px;list-style:none;padding:0;margin:18px 0 0}
.check-grid li{position:relative;padding-left:24px;font-size:15px}
.check-grid li::before{content:"";position:absolute;left:2px;top:8px;width:11px;height:6px;border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(-45deg)}
.panel-art{background:var(--navy);border-radius:18px;padding:22px;box-shadow:var(--shadow)}

/* 行业 */
.industries{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.industry{border-radius:var(--radius);padding:26px;background:#fff;border:1px solid var(--line);display:flex;gap:16px}
.industry .i-ico{flex:none;width:46px;height:46px;border-radius:12px;background:var(--navy);color:#ffb08f;display:grid;place-items:center}
.industry .i-ico svg{width:24px;height:24px}
.industry h3{font-size:17px;margin-bottom:4px}
.industry p{font-size:14px;color:var(--muted);margin:0}

/* 优势 */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.why-item{padding:28px;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
.why-item .num{font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.1em}
.why-item h3{font-size:18px;margin:6px 0}
.why-item p{color:var(--muted);font-size:15px;margin:0}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s;list-style:none;padding:0;margin:0}
.steps li{position:relative;padding:26px 22px;background:#fff;border-radius:var(--radius);border:1px solid var(--line)}
.steps li::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;margin-bottom:12px}
.steps h3{font-size:17px;margin-bottom:4px}
.steps p{font-size:14px;color:var(--muted);margin:0}

/* FAQ */
.faq{max-width:860px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;padding:0 22px}
.faq summary{cursor:pointer;list-style:none;padding:18px 30px 18px 0;font-weight:600;font-size:16px;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:14px;font-size:24px;color:var(--brand);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);padding-bottom:18px;margin:0}

/* 联系 */
.contact{background:var(--navy);color:#fff}
.contact .section-head p{color:#aab4c6}
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:32px}
.c-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-content:start}
.c-card{background:var(--navy-2);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:18px;display:flex;gap:14px;align-items:flex-start;transition:.2s;min-width:0}
a.c-card:hover{border-color:rgba(255,90,31,.6)}
.c-card .c-ico{flex:none;width:40px;height:40px;border-radius:10px;display:grid;place-items:center;background:rgba(255,90,31,.15);color:#ff9b73}
.c-card .c-ico svg{width:20px;height:20px}
.c-card small{display:block;color:#8d98ad;font-size:12px}
.c-card b{display:block;font-size:15px;font-weight:600;word-break:break-all}
.c-card.wide{grid-column:1/-1}
.qr{display:flex;gap:18px;align-items:center}
.qr img,.qr .qr-ph{width:120px;height:120px;border-radius:10px;background:#fff;flex:none;object-fit:cover}
.qr .qr-ph{display:grid;place-items:center;color:#94a3b8;font-size:12px;text-align:center;padding:8px}
.form{background:#fff;color:var(--ink);border-radius:16px;padding:30px}
.form h3{font-size:20px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form label{display:block;font-size:13px;font-weight:600;margin:12px 0 6px;color:var(--ink-2)}
.form input,.form select,.form textarea{width:100%;font:inherit;font-size:15px;padding:11px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid rgba(255,90,31,.35);border-color:var(--brand)}
.form textarea{min-height:110px;resize:vertical}
.form .btn{margin-top:18px;width:100%;justify-content:center}
.form .hint{font-size:12px;color:var(--muted);margin:10px 0 0;text-align:center}

/* 页脚 */
.footer{background:#070c16;color:#8d98ad;font-size:14px;padding:48px 0 28px}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;margin-bottom:34px}
.footer h4{color:#fff;font-size:15px;margin:0 0 12px}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{margin-bottom:8px}
.footer a:hover{color:#fff}
.footer .logo{color:#fff;margin-bottom:12px}
.footer .copy{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* 悬浮联系 */
.float{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:60}
.float a{width:50px;height:50px;border-radius:50%;display:grid;place-items:center;color:#fff;box-shadow:0 8px 20px rgba(0,0,0,.2);transition:.2s}
.float a:hover{transform:scale(1.08)}
.float svg{width:24px;height:24px}
.f-wa{background:#25d366}.f-wx{background:#07c160}.f-top{background:var(--ink)}

/* ---------- 产品页 ---------- */
.page-hero{padding:56px 0 72px}
.page-hero h1{font-size:clamp(28px,3.8vw,44px)}
.crumbs{font-size:13px;color:#8d98ad;margin-bottom:18px}
.crumbs a:hover{color:#fff}
.p-dot{display:inline-grid;place-items:center;min-width:26px;height:20px;padding:0 5px;border-radius:5px;font-style:normal;font-size:10px;font-weight:800;color:#fff}
.compat-line{font-size:14px;color:#9aa6bb;margin:0}
.hero-visual.panel-art{background:transparent;box-shadow:none;padding:0}
.hero-visual.panel-art svg{border-radius:14px}
.hosts a.chip:hover{color:var(--brand)}
.feature.hl{border:2px solid var(--brand)}
.feature .tag.star{color:var(--brand-d);background:var(--brand-soft)}
.groups{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.group{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.g-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.g-head .f-ico{width:40px;height:40px;border-radius:10px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;flex:none}
.g-head .f-ico svg{width:22px;height:22px}
.g-head h3{margin:0;font-size:18px;flex:1}
.g-head span{font-size:12px;font-weight:700;color:var(--muted);background:var(--soft);border-radius:999px;padding:2px 10px}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}
.chips li{font-size:14px;padding:5px 12px;border-radius:999px;background:var(--soft);border:1px solid var(--line);color:var(--ink-2)}
.nest-cta{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:center;background:var(--navy);color:#fff;border-radius:20px;padding:40px}
.nest-cta .kicker{color:#ff9b73;font-weight:700;font-size:13px;letter-spacing:.12em;text-transform:uppercase}
.nest-cta h2{font-size:clamp(22px,2.6vw,30px);margin-top:6px}
.nest-cta p{color:#aab4c6}
.others{display:grid;gap:12px}
.other{display:flex;align-items:center;gap:14px;background:var(--navy-2);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:16px 18px;transition:.2s}
.other:hover{border-color:rgba(255,90,31,.6)}
.other .p-icon{width:44px;height:44px;border-radius:11px;display:grid;place-items:center;font-style:normal;font-weight:800;font-size:14px;color:#fff;flex:none}
.other span{flex:1;min-width:0}
.other b{display:block}
.other small{color:#8d98ad;font-size:12px}
.other svg{width:20px;height:20px;color:#ff9b73;flex:none}

/* ---------- 排版效果 ---------- */
.result-hero{position:relative;margin:0;background:#eef1f5;border-radius:16px;padding:10px;box-shadow:0 30px 60px rgba(0,0,0,.45)}
.result-hero img{border-radius:10px;width:100%;height:auto}
.rb{position:absolute;display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14px;border-radius:999px;padding:9px 16px;box-shadow:0 10px 24px rgba(0,0,0,.25)}
.rb svg{width:18px;height:18px}
.rb1{left:-14px;bottom:28px;background:var(--brand);color:#fff}
.rb2{right:-10px;top:18px;background:var(--navy);color:#fff;border:1px solid rgba(255,255,255,.15)}
.result-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:28px}
.result-summary div{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:18px;text-align:center}
.result-summary b{display:block;font-size:28px;font-weight:800;color:var(--brand)}
.result-summary span{font-size:13px;color:var(--muted)}
.result-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px;align-items:start}
.result-card{margin:0;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow)}
.result-card img{width:100%;height:auto;border-radius:10px;background:#eef1f5}
.result-card.dark{background:var(--navy);border-color:var(--navy);color:#fff}
.result-card.dark img{background:#21262f;max-height:620px;object-fit:contain}
.result-card figcaption{font-weight:700;margin:14px 4px 10px}
.sheet-bars{list-style:none;padding:0 4px;margin:0;display:grid;gap:12px}
.sb-top{display:flex;justify-content:space-between;gap:10px;font-size:14px;color:var(--muted);margin-bottom:6px}
.sb-top b{color:var(--ink)}
.sb-val{font-size:16px;color:var(--brand)!important}
.sb-track{height:10px;border-radius:999px;background:var(--soft);overflow:hidden;border:1px solid var(--line)}
.sb-track i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#ff9a6a,var(--brand))}
.check-grid.one{grid-template-columns:1fr;margin:0 4px 4px}
.result-card.dark .check-grid li{color:#d6dce7}

/* ---------- 二维码 ---------- */
.qr-row{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.qr-card{background:var(--navy-2);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:18px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;min-width:0}
.qr-title{display:flex;align-items:center;gap:10px;align-self:stretch}
.qr-title .c-ico{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;background:rgba(255,90,31,.15);color:#ff9b73}
.qr-title .c-ico svg{width:18px;height:18px}
.qr-card img,.qr-card .qr-ph{width:180px;height:180px;max-width:100%;border-radius:10px;background:#fff;object-fit:contain}
.qr-card .qr-ph{display:grid;place-items:center;color:#94a3b8}
.qr-card small{color:#8d98ad;font-size:13px}
.btn-sm{padding:7px 14px;font-size:13px}
.c-cards > .c-card{grid-column:1/-1}

/* ---------- 响应式 ---------- */
@media (max-width:1020px){
  .nest-cta,.result-grid{grid-template-columns:1fr}
  .result-summary{grid-template-columns:1fr 1fr}
  .hero .container,.split,.contact-grid{grid-template-columns:1fr}
  .split.rev .split-text{order:0}
  .features{grid-template-columns:repeat(3,1fr)}
  .products,.industries,.why{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .footer .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  .menu-btn{display:block}
  .nav ul{display:none;position:absolute;left:0;right:0;top:68px;background:#fff;flex-direction:column;gap:0;padding:8px 20px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav.open ul{display:flex}
  .nav ul a{display:block;padding:12px 0;border-bottom:1px solid var(--line)}
  .nav{gap:12px}
  .header-cta{display:none}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:64px 0}
  .hero{padding:56px 0 64px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .features,.products,.industries,.why,.steps,.c-cards,.check-grid,.form .row,.footer .cols,.groups{grid-template-columns:1fr}
  .qr-row{gap:10px}
  .qr-card img,.qr-card .qr-ph{width:128px;height:128px}
  .page-hero{padding:40px 0 56px}
  .rb1{left:6px;bottom:10px}
  .rb2{right:6px;top:10px}
  .rb{font-size:12px;padding:7px 12px}
  .result-summary b{font-size:22px}
  .topbar{display:none}
  .logo{font-size:16px;gap:8px;white-space:nowrap}
  .logo img{width:34px;height:34px}
  .lang a{padding:5px 10px;white-space:nowrap}
  .float{right:12px;bottom:12px}
  .float a{width:44px;height:44px}
  .hosts .container{gap:18px 26px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}