/* ===== 新天彩智能 · 企业官网静态版 共享样式 ===== */
:root{
  --blue-900:#0B1F3A;
  --blue-800:#12345C;
  --blue-700:#17497F;
  --blue-600:#1B6AC9;
  --blue-500:#3D8BDC;
  --cyan-400:#00A8B5;
  --cyan-300:#57C7D1;
  --ink:#1F2937;
  --gray-700:#374151;
  --gray-500:#6B7280;
  --gray-300:#DDE3EA;
  --gray-100:#EDF2F8;
  --bg:#ffffff;
  --bg-soft:#F4F7FB;
  --bg-dark:#0B1F3A;
  --radius:10px;
  --shadow:0 8px 24px rgba(11,31,58,.08);
  --shadow-sm:0 2px 8px rgba(11,31,58,.05);
  --maxw:1240px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.section{padding:96px 0}
.section.soft{background:linear-gradient(180deg,#E4EFFB 0%,#F1F8FE 100%);border-top:1px solid rgba(21,101,192,.10)}
.section.dark{background:linear-gradient(120deg,#17497F 0%,#1B6AC9 55%,#00A8B5 100%);color:#fff}
h1,h2,h3,h4{line-height:1.25;color:var(--blue-900);font-weight:700}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--blue-600);font-weight:700;margin-bottom:12px}
.section-title{font-size:32px;margin-bottom:14px}
.section-sub{color:var(--gray-500);font-size:16px;max-width:680px}
.center{text-align:center}
.center .section-sub{margin-left:auto;margin-right:auto}
.muted{color:var(--gray-500)}

/* ===== 头部 ===== */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--gray-100)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px;color:var(--blue-900)}
.brand .logo{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--blue-600),var(--cyan-400));display:grid;place-items:center;color:#fff;font-size:18px;font-weight:900}
.brand .logo-img{height:40px;width:auto;display:block}
.brand small{display:block;font-size:11px;font-weight:600;color:var(--gray-500);letter-spacing:1px}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{font-size:15px;color:var(--gray-700);font-weight:500;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--blue-600)}
.nav-cta{display:flex;align-items:center;gap:14px}
.phone-btn{display:inline-flex;align-items:center;gap:7px;background:var(--blue-600);color:#fff;padding:9px 16px;border-radius:999px;font-size:14px;font-weight:700;transition:transform .15s,box-shadow .2s}
.phone-btn:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(21,101,192,.35)}
.menu-toggle{display:none;background:none;border:none;font-size:24px;color:var(--blue-900);cursor:pointer}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:700;font-size:15px;cursor:pointer;border:none;transition:transform .15s,box-shadow .2s}
.btn-primary{background:linear-gradient(135deg,var(--blue-600),var(--cyan-400));color:#fff;box-shadow:0 10px 22px rgba(21,101,192,.30)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(21,101,192,.40)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.6)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.10)}
.btn-outline{background:#fff;color:var(--blue-700);border:1.5px solid var(--blue-600)}
.btn-outline:hover{background:var(--blue-600);color:#fff}

/* ===== 首页 Hero ===== */
.hero{position:relative;color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:1;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:64px 64px}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;filter:saturate(.82) contrast(1.06)}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(760px 430px at 20% 16%,rgba(0,168,181,.20),transparent 68%),linear-gradient(110deg,rgba(11,31,58,.94) 0%,rgba(18,52,92,.84) 48%,rgba(23,73,127,.44) 100%);z-index:1}
.hero .wrap{position:relative;z-index:2;padding:108px 22px 92px}
.hero h1{color:#fff;font-size:48px;line-height:1.15;margin:18px 0 8px}
.gradient-text{background:linear-gradient(96deg,#7FE3F0 0%,#8FC7F5 34%,#BFDDFB 62%,#E8F4FF 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.hero .slogan{font-size:18px;color:var(--cyan-300);font-weight:700;letter-spacing:1px}
.hero p.lead{font-size:17px;color:rgba(255,255,255,.88);max-width:620px;margin:18px 0 30px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.trustbar{border-top:1px solid rgba(255,255,255,.14);background:rgba(9,26,48,.62);position:relative;z-index:2}
.trustbar .wrap{display:flex;align-items:center;gap:20px 28px;flex-wrap:wrap;padding:20px 22px}
.trustbar .tb-label{font-size:14px;letter-spacing:3px;font-weight:800;color:var(--cyan-300);text-transform:uppercase;flex:none}
.certs{display:flex;align-items:center;gap:14px;flex-wrap:wrap;flex:1}
.cert{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:9px 16px;font-size:14.5px;color:rgba(255,255,255,.82);transition:background .2s,border-color .2s,transform .15s}
.cert:hover{background:rgba(0,188,212,.14);border-color:rgba(77,208,225,.5);transform:translateY(-2px)}
.cert .cert-ic{color:var(--cyan-300);font-weight:900;font-size:13px}
.cert .cert-b{color:#fff;font-weight:800;font-size:15.5px;letter-spacing:.5px}

/* ===== 统计条 ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{background:#fff;border-radius:var(--radius);padding:26px 22px;text-align:center;box-shadow:var(--shadow-sm)}
.stat .num{font-size:36px;font-weight:800;color:var(--blue-600);line-height:1}
.stat .lab{color:var(--gray-500);margin-top:8px;font-size:14px}

/* 新版统计区：深蓝科技风 */
.stats-section{
  background:linear-gradient(120deg,#17497F 0%,#1B6AC9 55%,#00A8B5 100%);
  color:#fff;
  position:relative;
  overflow:hidden;
  padding:84px 0 78px
}
.stats-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 12% 20%,rgba(0,188,212,.18) 0%,transparent 28%),
    radial-gradient(circle at 88% 80%,rgba(77,208,225,.12) 0%,transparent 30%),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px) 0 0 / 60px 60px,
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px) 0 0 / 60px 60px;
  pointer-events:none
}
.stats-section .wrap{position:relative;z-index:2}
.stats-section .stats{gap:22px}
.stat-card{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius);
  padding:30px 22px 26px;
  text-align:center;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:transform .25s,background .25s,border-color .25s,box-shadow .25s;
  box-shadow:0 10px 32px rgba(0,0,0,.18)
}
.stat-card:hover{
  transform:translateY(-6px);
  background:rgba(255,255,255,.13);
  border-color:rgba(0,188,212,.45);
  box-shadow:0 18px 44px rgba(0,188,212,.18)
}
.stat-icon{
  width:56px;height:56px;
  margin:0 auto 16px;
  border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(27,106,201,.50),rgba(0,168,181,.30));
  border:1px solid rgba(255,255,255,.18)
}
.stat-icon svg{width:30px;height:30px;display:block}
.stat-num{font-size:40px;font-weight:800;line-height:1}
.stat-num .suffix{font-size:24px;font-weight:800;vertical-align:super;margin-left:2px}
.stat-lab{
  margin-top:10px;
  font-size:14.5px;
  color:rgba(255,255,255,.78);
  font-weight:500;
  letter-spacing:.3px
}
.stats-section .section-foot{
  text-align:center;
  margin-top:34px;
  color:rgba(255,255,255,.55);
  font-size:13px;
  letter-spacing:1px
}

/* ===== 卡片网格 ===== */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .thumb{height:170px;background:var(--bg-soft);overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .body{padding:20px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--gray-500);font-size:14.5px}
.tag{display:inline-block;background:var(--bg-soft);color:var(--blue-700);font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;margin-bottom:10px}

/* 业务线小卡 */
.biz{display:flex;flex-direction:column}
.biz .thumb{height:140px}
.biz .body{padding:16px 18px}
.biz h3{font-size:17px}
.card-feature{border:2px solid var(--blue-600);box-shadow:0 12px 36px rgba(20,80,160,.18);position:relative}
.card-feature .feature-tag{position:absolute;top:12px;left:12px;z-index:2;background:linear-gradient(135deg,var(--blue-600),var(--cyan-400));color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;box-shadow:0 4px 12px rgba(20,80,160,.3)}
.card-feature h3{color:var(--blue-800)}

/* ===== 区块标题头 ===== */
.page-hero{background:linear-gradient(120deg,#17497F 0%,#1B6AC9 55%,#00A8B5 100%);color:#fff;padding:72px 0 62px}
.page-hero h1{color:#fff;font-size:38px;margin-bottom:10px}
.page-hero p{color:rgba(255,255,255,.82);max-width:680px}

/* ===== 时间线 ===== */
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:var(--gray-300)}
.tl-item{position:relative;padding:0 0 30px 8px}
.tl-item::before{content:"";position:absolute;left:-26px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--blue-600);box-shadow:0 0 0 4px rgba(21,101,192,.15)}
.tl-item h4{font-size:17px;margin-bottom:4px}
.tl-item .yr{color:var(--blue-600);font-weight:700;font-size:14px}
.tl-item p{color:var(--gray-500);font-size:14.5px}

/* ===== 品牌合作 ===== */
.brand-card{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm)}
.brand-card .bname{font-size:18px;font-weight:800;color:var(--blue-900);margin-bottom:6px}
.brand-card p{color:var(--gray-500);font-size:14px}

/* ===== 服务优势 ===== */
.feat{display:flex;gap:14px;align-items:flex-start}
.feat .ic{width:46px;height:46px;border-radius:12px;background:var(--bg-soft);display:grid;place-items:center;color:var(--blue-600);font-size:22px;flex:none}
.feat h4{font-size:16px;margin-bottom:3px}
.feat p{color:var(--gray-500);font-size:14px}

/* ===== 解决方案详情 ===== */
.sol{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--gray-100);border-radius:var(--radius);overflow:hidden;margin-bottom:26px;background:#fff;box-shadow:var(--shadow-sm)}
.sol .sol-img{height:300px}
.sol .sol-img img{width:100%;height:100%;object-fit:cover}
.sol .sol-body{padding:30px}
.sol h3{font-size:23px;margin-bottom:10px}
.sol .sol-desc{color:var(--gray-700);margin-bottom:16px}
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 18px;margin-bottom:16px}
.spec{font-size:13.5px;color:var(--gray-700);border-bottom:1px dashed var(--gray-300);padding-bottom:6px}
.spec b{color:var(--blue-700)}
.meta-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.chip{background:var(--bg-soft);color:var(--blue-700);font-size:12.5px;padding:5px 12px;border-radius:999px;font-weight:600}
.sol .apps{color:var(--gray-500);font-size:13.5px;margin-bottom:18px}

/* 置顶：智能化系统集成 */
.sol-feature{border-color:var(--blue-600);box-shadow:0 12px 40px rgba(20,80,160,.18)}
.sol-feature .sol-body{padding-top:26px}
.feature-flag{display:inline-block;background:linear-gradient(135deg,var(--blue-600),var(--cyan-400));color:#fff;font-size:13px;font-weight:700;letter-spacing:.5px;padding:6px 14px;border-radius:999px;margin-bottom:12px;box-shadow:0 4px 14px rgba(20,80,160,.3)}
.flow-row{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:6px 0 18px}
.flow-step{background:var(--bg-soft);border:1px solid var(--gray-100);border-radius:10px;padding:8px 12px;font-size:13.5px;font-weight:700;color:var(--blue-800);text-align:center;line-height:1.3}
.flow-step small{display:block;font-weight:500;font-size:11.5px;color:var(--gray-500);margin-top:2px}
.flow-arrow{color:var(--cyan-500);font-weight:800;font-size:16px}

/* ===== 案例 ===== */
.case{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column}
.case .c-img{height:200px;overflow:hidden}
.case .c-img img{width:100%;height:100%;object-fit:cover}
.case .c-body{padding:22px;display:flex;flex-direction:column;flex:1}
.case h3{font-size:18px;margin:10px 0 12px}
.case .c-meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.case .c-block{font-size:14px;color:var(--gray-700);margin-bottom:10px}
.case .c-block b{color:var(--blue-700);display:inline-block;width:62px;flex:none}
.c-result{background:var(--bg-soft);border-radius:10px;padding:12px 14px;font-size:13.5px;color:var(--blue-800);margin-top:auto}

/* ===== CTA ===== */
.cta-band{background:linear-gradient(120deg,#1B6AC9 0%,#00A8B5 100%);color:#fff;padding:72px 0 64px}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.85);margin-bottom:22px}

/* ===== 联系 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.info-card{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.info-row{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--gray-100)}
.info-row:last-child{border-bottom:none}
.info-row .ic{width:40px;height:40px;border-radius:10px;background:var(--bg-soft);color:var(--blue-600);display:grid;place-items:center;font-size:18px;flex:none}
.info-row .k{font-size:13px;color:var(--gray-500)}
.info-row .v{font-size:16px;color:var(--ink);font-weight:600}
.form{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-sm)}
.form label{display:block;font-size:14px;color:var(--gray-700);margin:14px 0 6px;font-weight:600}
.form input,.form textarea{width:100%;padding:12px 14px;border:1px solid var(--gray-300);border-radius:10px;font-size:15px;font-family:inherit;color:var(--ink);transition:border .2s,box-shadow .2s}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px rgba(30,136,229,.15)}
.form textarea{resize:vertical;min-height:120px}
.form .err{color:#e53935;font-size:12.5px;margin-top:4px;display:none}
.form .note{font-size:12.5px;color:var(--gray-500);margin-top:12px}
.form-status{margin-top:12px;padding:10px 14px;border-radius:10px;font-size:14px;font-weight:600}
.form-status.ok{background:#e8f5e9;color:#2e7d32;border:1px solid #c8e6c9}
.form-status.err{background:#fdecea;color:#c62828;border:1px solid #ef9a9a}
.form button:disabled{opacity:.65;cursor:not-allowed}
/* 位置卡片（零依赖方案：不嵌第三方地图，点击在合规地图中打开） */
.mapbox{margin-top:18px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--gray-100);background:#fff;box-shadow:var(--shadow-sm)}
.map-visual{position:relative;height:174px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;padding:0 18px;
  background-color:#f3f8fc;
  background-image:radial-gradient(rgba(21,101,192,.14) 1.2px,transparent 1.2px),linear-gradient(135deg,#f8fbfe,#e6f0fa);
  background-size:16px 16px,100% 100%;border-bottom:1px solid var(--gray-100)}
.map-pin{width:48px;height:48px;border-radius:50%;background:rgba(21,101,192,.10);display:grid;place-items:center;position:relative;margin-bottom:4px}
.map-pin svg{width:26px;height:26px;fill:var(--blue-600);display:block}
.map-pin::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid rgba(21,101,192,.4);animation:pinPulse 2.4s ease-out infinite}
@keyframes pinPulse{0%{transform:scale(.8);opacity:.85}100%{transform:scale(1.9);opacity:0}}
.map-co{font-size:15px;font-weight:700;color:var(--blue-900);line-height:1.4}
.map-city{font-size:12.5px;color:var(--gray-500);letter-spacing:.1em}
.map-info{padding:16px 18px 18px}
.map-addr{font-size:14.5px;font-weight:600;color:var(--blue-900);line-height:1.6}
.map-tip{font-size:12.5px;color:var(--gray-500);margin:6px 0 13px}
.map-actions{display:flex;gap:10px;flex-wrap:wrap}
.map-btn{flex:1 1 132px;text-align:center;padding:10px 12px;border-radius:9px;font-size:13.5px;font-weight:600;
  border:1px solid var(--gray-300);color:var(--blue-600);background:#fff;transition:border-color .2s,background .2s,color .2s}
.map-btn:hover{border-color:var(--blue-500);background:#f4fbff}
.map-btn.primary{background:var(--blue-600);border-color:var(--blue-600);color:#fff}
.map-btn.primary:hover{background:var(--blue-700);border-color:var(--blue-700);color:#fff}

/* ===== 页脚 ===== */
.footer{background:linear-gradient(160deg,#17497F,#12345C);color:rgba(255,255,255,.72);padding:54px 0 26px}
.footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:30px}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:1px}
.footer a{color:rgba(255,255,255,.72);font-size:14px;display:block;margin-bottom:9px;transition:color .2s}
.footer a:hover{color:var(--cyan-300)}
.footer .fbrand{font-size:19px;font-weight:800;color:#fff;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.fbrand .flogo{height:44px;width:auto;display:block}
.footer .fbrand .logo{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--blue-600),var(--cyan-400));display:grid;place-items:center;font-size:16px;font-weight:900}
.footer p{font-size:14px;line-height:1.8}
.footer .copy{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;font-size:13px;color:rgba(255,255,255,.5);text-align:center}
.footer .beian{margin-top:10px;text-align:center;font-size:13px;color:rgba(255,255,255,.5)}
.footer .beian a{color:rgba(255,255,255,.65);text-decoration:none;display:inline-flex;align-items:center;gap:4px;transition:color .2s}
.footer .beian a:hover{color:var(--cyan-300)}
.footer .beian .sep{margin:0 8px;color:rgba(255,255,255,.3)}
.footer .beian .beian-icon{width:16px;height:16px;display:inline-block;vertical-align:middle}
.footer .contact-line{font-size:14px;margin-bottom:6px}

/* ===== 响应式 ===== */
@media(max-width:980px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .sol{grid-template-columns:1fr}
  .sol .sol-img{height:220px}
  .contact-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav{flex-wrap:wrap;height:auto;padding:10px 0;gap:8px}
  .nav-links{order:3;width:100%;display:flex;gap:18px;overflow-x:auto;padding-top:8px;border-top:1px solid var(--gray-100);-webkit-overflow-scrolling:touch}
  .nav-links a{white-space:nowrap;font-size:14.5px}
  .hero h1{font-size:34px}
  .section-title{font-size:26px}
  .grid-3,.grid-2,.grid-4{grid-template-columns:1fr}
  .footer .cols{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stats-section{padding:54px 0 50px}
  .stat-card{padding:22px 14px 20px}
  .stat-icon{width:46px;height:46px;font-size:22px;margin-bottom:12px}
  .stat-num{font-size:30px}
  .stat-num .suffix{font-size:18px}
  .stat-lab{font-size:13px}
  .spec-grid{grid-template-columns:1fr}
  .map-visual{height:156px}
  .map-actions{flex-direction:column}
}
/* 移动端悬浮咨询按钮 */
.floating-cta{position:fixed;right:16px;bottom:16px;z-index:80;display:none;flex-direction:column;gap:12px}
.floating-cta a{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:22px;box-shadow:0 8px 20px rgba(10,37,64,.32);transition:transform .15s}
.floating-cta a:active{transform:scale(.94)}
.floating-cta .call{background:linear-gradient(135deg,var(--blue-600),var(--cyan-400))}
.floating-cta .msg{background:#07c160}
@media(max-width:680px){ .floating-cta{display:flex} }
/* 锚点快速跳转条 */
.anchor-bar{position:sticky;top:68px;z-index:40;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--gray-100);display:flex;gap:10px;overflow-x:auto;padding:11px 22px;-webkit-overflow-scrolling:touch}
.anchor-bar a{white-space:nowrap;font-size:13.5px;color:var(--blue-700);background:var(--bg-soft);padding:6px 13px;border-radius:999px;font-weight:600;transition:background .2s,color .2s}
.anchor-bar a:hover{background:var(--blue-600);color:#fff}
.badge-note{font-size:12px;color:var(--gray-500);margin-top:14px}

/* ===== 宽屏（桌面端）增强 ===== */
@media(min-width:1200px){
  .hero .wrap{padding:132px 22px 112px}
  .hero h1{font-size:60px}
  .hero p.lead{font-size:18px;max-width:680px}
  .section{padding:94px 0}
  .section-title{font-size:40px}
  .eyebrow{font-size:14px}
  .card .thumb{height:190px}
  .biz .thumb{height:160px}
  .grid-3{gap:26px}
  .stats{gap:28px}
  .stat .num{font-size:40px}
  .stats-section{padding:86px 0 80px}
  .stat-card{padding:36px 26px 30px}
  .stat-icon{width:60px;height:60px;font-size:28px}
  .stat-num{font-size:44px}
}
@media(min-width:1600px){
  :root{--maxw:1360px}
  .hero h1{font-size:66px}
  .section-title{font-size:44px}
}

/* ===== 精细打磨：标题修饰线 / 线性图标 / 卡片质感 ===== */
svg.ico{width:1em;height:1em;vertical-align:-.14em;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.section-title{position:relative;padding-bottom:16px}
.section-title::after{content:"";position:absolute;left:0;bottom:0;width:46px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--blue-600),var(--cyan-400))}
.center .section-title::after{left:50%;transform:translateX(-50%)}
.eyebrow{display:inline-flex;align-items:center;gap:7px}
.eyebrow::before{content:"";width:14px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--blue-600),var(--cyan-400))}
.card{border:1px solid var(--gray-100)}
.card:hover{border-color:#CFE0F3}
.feat .ic{border-radius:10px}

/* 轻蓝隔断：打破全白——方案/案例卡片隔张上浅蓝底 */
.sol.alt{background:linear-gradient(180deg,#E6F1FC,#F4FAFE);border-color:#C9DEF5}
.case.alt{background:linear-gradient(180deg,#E6F1FC,#F4FAFE);border-color:#C9DEF5}
.brand-card.alt{background:linear-gradient(180deg,#E6F1FC,#F4FAFE);border-color:#C9DEF5}
.card.alt{background:linear-gradient(180deg,#E6F1FC,#F4FAFE);border-color:#C9DEF5}