:root{
  --brand:#2f6bff;
  --brand-2:#7b5bff;
  --orange:#ff7a1a;
  --green:#15c47e;
  --ink:#1d2129;
  --gray:#4e5969;
  --gray-2:#86909c;
  --line:#eaeef3;
  --bg-soft:#f6f8fb;
  --radius:16px;
  --shadow:0 8px 30px rgba(30,40,90,.08);
  --shadow-lg:0 18px 50px rgba(30,40,90,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",
    "Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:#fff;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
.wrap{width:min(1200px,92%);margin:0 auto}
img{max-width:100%}

/* 按钮 */
.btn-primary,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;font-weight:600;cursor:pointer;transition:.2s;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--orange);color:#fff;padding:11px 26px}
.btn-primary:hover{background:#ff6a00;box-shadow:0 8px 22px rgba(255,122,26,.35);transform:translateY(-1px)}
.btn-primary.lg{padding:15px 38px;font-size:17px}
.btn-ghost{color:var(--brand);padding:10px 18px}
.btn-ghost:hover{background:rgba(47,107,255,.08)}
.btn-line{border-color:var(--brand);color:var(--brand);padding:11px 26px;background:#fff}
.btn-line:hover{background:var(--brand);color:#fff}
.btn-line.lg{padding:15px 38px;font-size:17px}
.btn-line.sm{padding:8px 20px;font-size:14px}

/* 顶部通知条 */
.top-bar{background:linear-gradient(90deg,var(--brand),var(--brand-2));color:#fff;font-size:14px}
.top-bar .wrap{display:flex;align-items:center;justify-content:center;gap:14px;padding:9px 0}
.top-bar a{color:#ffe7c2;font-weight:600}

/* 导航 */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav.scrolled{box-shadow:var(--shadow)}
.nav-inner{display:flex;align-items:center;gap:30px;height:68px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:22px}
.logo-mark{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--orange),#ff9a3d);color:#fff;font-weight:800}
.logo-text i{font-style:normal;color:var(--brand)}
.menu{display:flex;gap:26px;margin-left:8px;flex:1}
.menu a{color:var(--gray);font-weight:500;position:relative;padding:6px 0}
.menu a:hover{color:var(--brand)}
.menu a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;
  background:var(--brand);transition:.25s}
.menu a:hover::after{width:100%}
.nav-right{display:flex;align-items:center;gap:10px}
.hamburger{display:none;background:none;border:0;font-size:24px;color:var(--ink);cursor:pointer}

/* 首屏 */
.hero{position:relative;background:
  radial-gradient(1200px 500px at 80% -10%,rgba(123,91,255,.18),transparent 60%),
  radial-gradient(900px 480px at 10% 10%,rgba(47,107,255,.16),transparent 55%),
  linear-gradient(180deg,#f4f8ff,#ffffff);
  padding:70px 0 110px;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero-tag{display:inline-block;background:#fff;color:var(--brand);border:1px solid #d7e3ff;
  padding:6px 16px;border-radius:999px;font-size:14px;font-weight:600;margin-bottom:18px}
.hero h1{font-size:48px;line-height:1.2;font-weight:800;letter-spacing:-.5px}
.hero-sub{color:var(--gray);font-size:18px;margin:20px 0 30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:34px;margin-top:42px;flex-wrap:wrap}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats b{font-size:30px;font-weight:800;color:var(--brand)}
.hero-stats span{font-size:13px;color:var(--gray-2)}

/* 浏览器 mock */
.hero-visual{display:flex;justify-content:center}
.browser{width:100%;max-width:520px;background:#fff;border-radius:14px;box-shadow:var(--shadow-lg);
  overflow:hidden;border:1px solid var(--line)}
.browser-bar{display:flex;align-items:center;gap:7px;background:#f2f4f8;padding:11px 14px}
.browser-bar i{width:11px;height:11px;border-radius:50%;background:#ff5f57}
.browser-bar i:nth-child(2){background:#febc2e}
.browser-bar i:nth-child(3){background:#28c840}
.browser-bar span{margin-left:10px;font-size:12px;color:var(--gray-2)}
.browser-body{padding:18px;display:flex;flex-direction:column;gap:14px}
.mock-nav{height:14px;border-radius:7px;background:linear-gradient(90deg,#dfe7ff,#eef2ff);width:70%}
.mock-hero{height:90px;border-radius:12px;background:linear-gradient(120deg,var(--brand),var(--brand-2))}
.mock-cards{display:flex;gap:10px}
.mock-cards span{flex:1;height:54px;border-radius:10px;background:#eef2ff}
.mock-row{display:flex;align-items:center;gap:12px}
.mock-row b{height:12px;width:40%;border-radius:6px;background:#e3e8f0}
.mock-row i{flex:1;height:10px;border-radius:5px;background:#eef1f6}
.mock-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.mock-grid em{height:46px;border-radius:10px;background:linear-gradient(135deg,#eaf0ff,#f3ecff)}

/* 信任条 */
.trust{border-bottom:1px solid var(--line);background:#fff}
.trust-inner{display:flex;align-items:center;gap:24px;padding:22px 0;flex-wrap:wrap}
.trust-inner>span{font-weight:700;color:var(--gray);white-space:nowrap}
.trust-logos{display:flex;gap:26px;flex-wrap:wrap}
.trust-logos span{color:var(--gray-2);font-weight:600;font-size:15px;opacity:.85}

/* 通用 section */
.section{padding:84px 0}
.section.soft{background:var(--bg-soft)}
.sec-head{text-align:center;max-width:640px;margin:0 auto 50px}
.sec-head h2{font-size:34px;font-weight:800}
.sec-head p{color:var(--gray);margin-top:12px;font-size:17px}

/* 产品矩阵 */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;
  transition:.25s;position:relative}
.pcard:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.pico{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;color:#fff;
  font-weight:800;font-size:22px;background:var(--c);margin-bottom:16px;box-shadow:0 8px 18px color-mix(in srgb,var(--c) 35%,transparent)}
.pcard h3{font-size:20px;margin-bottom:8px}
.pcard p{color:var(--gray);font-size:15px;min-height:44px}
.pcard a{color:var(--brand);font-weight:600;font-size:15px}
.pcard.more{background:linear-gradient(135deg,#eef3ff,#f4ecff);border-style:dashed;
  display:flex;flex-direction:column;justify-content:center}

/* 模板 tab */
.tabs{display:flex;justify-content:center;gap:10px;margin-bottom:34px;flex-wrap:wrap}
.tab{border:1px solid var(--line);background:#fff;color:var(--gray);padding:9px 22px;border-radius:999px;
  cursor:pointer;font-weight:600;transition:.2s}
.tab:hover{border-color:var(--brand);color:var(--brand)}
.tab.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.tpl-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.tpl{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;cursor:pointer;
  transition:.25s}
.tpl:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.tpl-thumb{display:block;height:120px;background:linear-gradient(135deg,var(--a),var(--b))}
.tpl figcaption{display:block;padding:11px 12px;font-size:14px;font-weight:600;text-align:center}
.tpl-more{text-align:center;margin-top:34px}

/* 行业方案 */
.sol-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.sol{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;transition:.25s}
.sol:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-4px)}
.sol b{display:block;font-size:17px;margin-bottom:6px}
.sol span{color:var(--gray);font-size:14px}

/* 优势 */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.adv{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;
  position:relative;overflow:hidden;transition:.25s}
.adv:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.adv-no{font-size:34px;font-weight:800;color:rgba(47,107,255,.14)}
.adv h3{font-size:19px;margin:6px 0 10px}
.adv p{color:var(--gray);font-size:15px}

/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.case{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  transition:.25s}
.case:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.case-logo{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;color:#fff;
  font-weight:800;font-size:22px;background:var(--c);margin-bottom:14px}
.case b{display:block;font-size:17px;margin-bottom:8px}
.case p{color:var(--gray);font-size:14px}

/* 资讯 */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.news{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;display:flex;
  flex-direction:column;gap:10px;transition:.25s;min-height:160px}
.news:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.news-tag{align-self:flex-start;background:#eef3ff;color:var(--brand);font-size:12px;
  font-weight:600;padding:4px 12px;border-radius:999px}
.news b{font-size:16px;line-height:1.5}
.news time{margin-top:auto;color:var(--gray-2);font-size:13px}

/* 关于 */
.about{background:linear-gradient(180deg,#fff,#f4f8ff)}
.about-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
.about-copy h2{font-size:32px;font-weight:800;margin-bottom:18px}
.about-copy p{color:var(--gray);font-size:16px;margin-bottom:14px}
.about-list{list-style:none;margin:18px 0 26px;display:flex;flex-direction:column;gap:10px}
.about-list li{color:var(--ink);font-weight:500}
.about-visual{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.about-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  text-align:center;box-shadow:var(--shadow)}
.about-card b{display:block;font-size:30px;font-weight:800;color:var(--brand)}
.about-card span{color:var(--gray);font-size:14px}

/* CTA */
.cta{background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#fff;padding:70px 0}
.cta-inner{text-align:center}
.cta h2{font-size:32px;font-weight:800}
.cta p{opacity:.92;margin:12px 0 28px;font-size:17px}
.cta-form{display:flex;gap:12px;justify-content:center;max-width:520px;margin:0 auto;flex-wrap:wrap}
.cta-form input{flex:1;min-width:240px;border:0;border-radius:999px;padding:15px 22px;font-size:16px;outline:none}
.cta-form .btn-primary{background:#fff;color:var(--brand)}
.cta-form .btn-primary:hover{background:#ffe9d6}
.cta small{display:block;margin-top:16px;opacity:.8}

/* 页脚 */
.footer{background:#11161f;color:#aeb6c2;padding:56px 0 0}
.footer-inner{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1.3fr;gap:30px}
.footer .logo{color:#fff}
.footer .logo i{color:var(--orange)}
.f-brand p{margin:14px 0;font-size:14px;line-height:1.7}
.f-social{display:flex;gap:10px}
.f-social a{width:36px;height:36px;border-radius:50%;background:#1d2531;display:grid;place-items:center;
  color:#fff;font-size:13px;transition:.2s}
.f-social a:hover{background:var(--brand)}
.f-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.f-col a{display:block;color:#aeb6c2;font-size:14px;padding:5px 0;transition:.2s}
.f-col a:hover{color:var(--orange)}
.f-contact p{font-size:14px;margin-bottom:8px}
.f-contact b{color:#fff}
.footer-bottom{border-top:1px solid #1d2531;margin-top:44px;padding:18px 0;
  display:flex;gap:20px;justify-content:space-between;flex-wrap:wrap;font-size:13px}

/* 响应式 */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{order:-1}
  .product-grid,.adv-grid{grid-template-columns:repeat(2,1fr)}
  .tpl-grid{grid-template-columns:repeat(3,1fr)}
  .sol-grid,.case-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .about-inner{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .menu{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;
    flex-direction:column;padding:14px 6%;gap:4px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .menu.open{display:flex}
  .hamburger{display:block}
  .nav-right .btn-ghost{display:none}
  .hero h1{font-size:34px}
  .sec-head h2{font-size:26px}
  .product-grid,.adv-grid,.tpl-grid,.sol-grid,.case-grid,.news-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
  .hero-stats{gap:22px}
}

/* ===== GEO 服务页专属样式 ===== */
.geo-hero{position:relative;background:
  radial-gradient(1000px 460px at 85% -20%,rgba(123,91,255,.20),transparent 60%),
  radial-gradient(800px 420px at 5% 0%,rgba(47,107,255,.18),transparent 55%),
  linear-gradient(180deg,#f4f8ff,#ffffff);
  padding:64px 0 96px;overflow:hidden}
.geo-hero .wrap{display:flex;flex-direction:column;align-items:center;text-align:center}
.geo-hero .hero-tag{margin-bottom:16px}
.geo-hero h1{font-size:46px;font-weight:800;line-height:1.2}
.geo-hero .sub{color:var(--gray);font-size:18px;max-width:760px;margin:20px 0 30px}
.geo-hero .hero-actions{margin-bottom:48px}
.geo-stats{display:flex;gap:46px;flex-wrap:wrap;justify-content:center}
.geo-stats div{display:flex;flex-direction:column;align-items:center}
.geo-stats b{font-size:38px;font-weight:800;color:var(--brand)}
.geo-stats span{font-size:14px;color:var(--gray-2);margin-top:4px}

.geo-intro{max-width:860px;margin:0 auto;text-align:center;color:var(--gray);font-size:17px;line-height:1.9}
.geo-plat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.geo-plat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:.25s;position:relative}
.geo-plat:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.geo-plat .no{position:absolute;top:18px;right:22px;font-size:26px;font-weight:800;color:rgba(47,107,255,.14)}
.geo-plat h3{font-size:20px;margin-bottom:8px}
.geo-plat p{color:var(--gray);font-size:15px}

.geo-price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.geo-price{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;
  display:flex;flex-direction:column;transition:.25s}
.geo-price:hover{box-shadow:var(--shadow);transform:translateY(-5px)}
.geo-price.featured{border:2px solid var(--brand);box-shadow:var(--shadow)}
.geo-price .tag{align-self:flex-start;background:var(--brand);color:#fff;font-size:12px;
  font-weight:600;padding:4px 12px;border-radius:999px;margin-bottom:14px}
.geo-price h3{font-size:22px;margin-bottom:6px}
.geo-price .price{font-size:34px;font-weight:800;color:var(--orange);margin:8px 0 4px}
.geo-price .price small{font-size:15px;color:var(--gray-2);font-weight:500}
.geo-price ul{list-style:none;margin:18px 0 24px;display:flex;flex-direction:column;gap:11px;flex:1}
.geo-price li{color:var(--gray);font-size:15px;padding-left:24px;position:relative}
.geo-price li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:800}
.geo-price .btn-primary,.geo-price .btn-line{width:100%}

.geo-ind-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.geo-ind{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;transition:.25s}
.geo-ind:hover{border-color:var(--brand);box-shadow:var(--shadow);transform:translateY(-4px)}
.geo-ind b{display:block;font-size:17px;margin-bottom:6px}
.geo-ind span{color:var(--gray);font-size:14px}

/* GEO 响应式 */
@media(max-width:1024px){
  .geo-plat-grid,.geo-price-grid{grid-template-columns:repeat(2,1fr)}
  .geo-ind-grid{grid-template-columns:repeat(2,1fr)}
  .geo-hero h1{font-size:38px}
}
@media(max-width:680px){
  .geo-plat-grid,.geo-price-grid,.geo-ind-grid{grid-template-columns:1fr}
  .geo-stats{gap:26px}
  .geo-hero h1{font-size:30px}
  .geo-stats b{font-size:30px}
}

/* ===== 客户意向登记 ===== */
.signup{background:var(--bg-soft)}
.signup-inner{max-width:880px}
.signup-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);
  display:grid;grid-template-columns:1fr 1fr;gap:16px 20px}
.signup-form .field{display:flex;flex-direction:column}
.signup-form .field label{font-size:13px;color:var(--gray);margin-bottom:6px}
.signup-form .field input,.signup-form .field select,.signup-form .field textarea{
  padding:11px 13px;border:1px solid #d8dde8;border-radius:10px;font-size:14px;font-family:inherit;box-sizing:border-box}
.signup-form .field input:focus,.signup-form .field select:focus,.signup-form .field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(47,107,255,.12)}
.signup-form .field-full{grid-column:1/-1}
.signup-form .submit-row{display:flex;align-items:center;gap:16px;grid-column:1/-1}
.signup-form .form-msg{font-size:14px;color:var(--green)}

/* ===== 文章详情 ===== */
.article-wrap{padding:48px 0 64px}
.article{max-width:820px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:36px 40px;box-shadow:var(--shadow)}
.article-back{display:inline-block;color:var(--brand);font-size:14px;margin-bottom:18px}
.article h1{font-size:30px;line-height:1.35;margin-bottom:12px}
.article-meta{color:var(--gray-2);font-size:14px;margin-bottom:22px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.article-cover{margin:0 0 22px;border-radius:12px;overflow:hidden}
.article-cover img{width:100%;display:block}
.article-body{font-size:16px;line-height:1.9;color:#2b3240}
.article-body p{margin:0 0 16px}
.article-body h2,.article-body h3{margin:24px 0 12px}
.article-body img{max-width:100%;border-radius:10px}
.article-loading{color:var(--gray-2)}

/* 小按钮 */
.btn-line.sm{padding:8px 18px;font-size:13px}

@media(max-width:680px){
  .signup-form{grid-template-columns:1fr}
  .article{padding:24px 22px}
  .article h1{font-size:24px}
}