:root{
  --ink:#202536;
  --muted:#667085;
  --paper:#fffdf8;
  --cream:#fff5dc;
  --line:#e8e1d7;
  --coral:#ff715b;
  --blue:#4263eb;
  --mint:#33b89a;
  --yellow:#f5c84b;
  --purple:#8659d8;
  --shadow:0 18px 45px rgba(32,37,54,.09);
  --radius:22px;
  --container:min(1180px,calc(100% - 40px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
img{max-width:100%;height:auto;display:block}
.container{width:var(--container);margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,248,.94);border-bottom:1px solid rgba(232,225,215,.8);backdrop-filter:blur(12px)}
.navbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;font-weight:800;font-size:18px}
.ai-page-logo{width:42px;height:42px;object-fit:contain}
.nav-links{display:flex;align-items:center;gap:0;flex:1;justify-content:flex-end}
.nav-links a{padding:9px 11px;font-size:13px;color:#4f5668;white-space:nowrap}
.nav-links a:hover{color:var(--coral)}
.nav-cta,.primary-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 19px;border-radius:12px;background:var(--coral);color:#fff;font-weight:700;border:0;box-shadow:0 8px 18px rgba(255,113,91,.24);transition:.25s}
.nav-cta:hover,.primary-btn:hover{transform:translateY(-2px);box-shadow:0 12px 22px rgba(255,113,91,.3)}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:8px 11px;color:var(--ink)}
.hero{position:relative;overflow:hidden;background:#fff0d7;padding:92px 0 82px;border-bottom:1px solid #f2dfbd}
.hero:before,.hero:after{content:"";position:absolute;pointer-events:none;border:3px solid var(--coral);border-radius:48% 52% 45% 55%;transform:rotate(-14deg)}
.hero:before{width:210px;height:110px;right:5%;top:48px}
.hero:after{width:120px;height:170px;left:-38px;bottom:-58px;border-color:var(--blue);transform:rotate(28deg)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:65px;align-items:center;position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--coral);font-weight:800;font-size:14px;letter-spacing:0}
.eyebrow:before{content:"";width:24px;height:4px;background:var(--coral);border-radius:4px}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(40px,6vw,70px);line-height:1.1;letter-spacing:0;margin:18px 0 22px;max-width:670px}
.hero-copy{font-size:18px;color:#535b6e;max-width:650px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.secondary-btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 18px;border:1px solid #d7cfc2;border-radius:12px;background:#fffaf0;color:var(--ink);font-weight:700;transition:.25s}
.secondary-btn:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
.hero-board{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.hero-tile{padding:20px;background:#fffdf8;border:1px solid rgba(32,37,54,.1);box-shadow:var(--shadow);border-radius:18px;min-height:145px;position:relative}
.hero-tile:nth-child(2){transform:translateY(22px);background:#dff7ee}
.hero-tile:nth-child(3){background:#e4eaff}
.hero-tile:nth-child(4){transform:translateY(22px);background:#ffe0da}
.hero-tile strong{display:block;font-size:29px;line-height:1.2;margin:10px 0 3px}
.hero-tile span{color:var(--muted);font-size:13px}
.section{padding:86px 0}
.section-tint{background:#f4f7ff}
.section-warm{background:#fff2dd}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
.section-heading h2{font-size:clamp(28px,4vw,44px);line-height:1.2;margin:8px 0 0}
.section-heading p{max-width:520px;color:var(--muted);margin-bottom:0}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:48px}
.stat{padding:22px 18px;border-left:5px solid var(--coral);background:#fff;border-radius:4px 16px 16px 4px;box-shadow:0 8px 24px rgba(32,37,54,.06)}
.stat:nth-child(2){border-color:var(--blue)}.stat:nth-child(3){border-color:var(--mint)}.stat:nth-child(4){border-color:var(--yellow)}
.stat strong{font-size:30px;display:block}.stat span{font-size:14px;color:var(--muted)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:start}
.about-lead{font-size:21px;line-height:1.6}
.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.feature{padding:18px;border:1px solid var(--line);background:#fff;border-radius:16px}
.feature b{display:block;margin-bottom:5px}.feature p{color:var(--muted);font-size:14px;margin:0}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.service-card{padding:22px;background:#fff;border:1px solid var(--line);border-radius:18px;transition:.25s}
.service-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.service-card .icon{font-size:28px;margin-bottom:12px}.service-card h3{font-size:18px;margin-bottom:7px}.service-card p{font-size:14px;color:var(--muted);margin:0}
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.process:before{content:"";position:absolute;top:29px;left:8%;right:8%;height:2px;background:#d8dff7}
.step{position:relative;text-align:center;padding:0 12px}
.step-number{width:58px;height:58px;margin:0 auto 18px;display:grid;place-items:center;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;border:7px solid #e4eaff;position:relative}
.step:nth-child(2) .step-number{background:var(--coral);border-color:#ffe0da}.step:nth-child(3) .step-number{background:var(--mint);border-color:#d8f5ed}.step:nth-child(4) .step-number{background:var(--purple);border-color:#eee6ff}.step:nth-child(5) .step-number{background:#d59b00;border-color:#fff2c9}
.step h3{font-size:16px;margin-bottom:6px}.step p{font-size:13px;color:var(--muted);margin:0}
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:42px;align-items:start}
.callout{padding:28px;background:#202536;color:#fff;border-radius:22px;position:relative;overflow:hidden}
.callout:after{content:"";position:absolute;width:110px;height:110px;border:20px solid #f5c84b;border-radius:50%;right:-35px;bottom:-50px}
.callout h2{font-size:32px;margin-bottom:12px}.callout p{color:#d4d8e4}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}.tag{display:inline-block;padding:7px 12px;border-radius:999px;background:#fff0d7;color:#8a542e;font-size:13px}
.tag:nth-child(3n){background:#e4eaff;color:#314ca9}.tag:nth-child(3n+1){background:#dff7ee;color:#187a67}
.network{display:flex;flex-wrap:wrap;gap:10px}.network span{padding:10px 14px;background:#fff;border:1px solid var(--line);border-radius:10px;font-size:14px}
.comparison-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:18px;background:#fff}
.comparison{width:100%;min-width:760px;border-collapse:collapse;text-align:left}
.comparison th,.comparison td{padding:15px 17px;border-bottom:1px solid #eee8df;font-size:14px}
.comparison th{background:#202536;color:#fff}.comparison td:first-child{font-weight:700}.comparison tr:last-child td{border-bottom:0}
.score-box{display:flex;align-items:center;gap:22px;background:#fff2dd;border:1px solid #f0d9a6;padding:22px;border-radius:18px;margin-bottom:20px}
.score{font-size:38px;font-weight:800;color:var(--coral);line-height:1}.stars{color:#e9a900;font-size:25px;letter-spacing:0}
.case-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:16px}
.case{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}
.case-media{aspect-ratio:16/9;background:#e4eaff;overflow:hidden}.case-media img{width:100%;height:100%;object-fit:cover}
.case:nth-child(2) .case-media{background:#dff7ee}.case:nth-child(3) .case-media{background:#ffe0da}
.case-content{padding:18px}.case h3{margin-bottom:6px}.case p{font-size:14px;color:var(--muted);margin:0}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.price-card{padding:24px;background:#fff;border:1px solid var(--line);border-radius:18px}.price-card.featured{border:2px solid var(--coral);transform:translateY(-8px)}.price-card h3{margin-bottom:8px}.price-card strong{font-size:29px}.price-card p{color:var(--muted);font-size:14px}.price-card ul{padding-left:20px;color:#596174;font-size:14px}
.testimonials{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.quote{padding:22px;background:#fff;border:1px solid var(--line);border-radius:18px;position:relative}.quote:before{content:"“";font-size:42px;color:var(--coral);line-height:.7}.quote p{font-size:14px;margin:12px 0 16px}.quote strong{font-size:14px}.quote span{display:block;color:var(--muted);font-size:12px}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.article{padding:20px;background:#fff;border-bottom:4px solid var(--blue);border-radius:14px}.article:nth-child(2){border-color:var(--coral)}.article:nth-child(3){border-color:var(--mint)}.article h3{font-size:18px;margin-bottom:8px}.article p{font-size:14px;color:var(--muted);margin-bottom:15px}.article a{color:var(--blue);font-weight:700;font-size:14px}
.faq{display:grid;grid-template-columns:1fr 1fr;gap:12px 22px}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;padding:17px 0;background:none;border:0;text-align:left;display:flex;justify-content:space-between;gap:15px;cursor:pointer;color:var(--ink);font-weight:700}.faq-question span{font-size:20px;color:var(--coral);transition:.2s}.faq-answer{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s ease}.faq-answer p{padding:0 25px 17px 0;margin:0}.faq-item.open .faq-answer{max-height:160px}.faq-item.open .faq-question span{transform:rotate(45deg)}
.form-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:35px;align-items:start}.contact-panel{padding:25px;background:#e4eaff;border-radius:20px}.contact-panel h2{font-size:30px}.contact-panel p{color:#4e5870}.contact-line{padding:11px 0;border-bottom:1px solid rgba(66,99,235,.18);font-size:14px}.contact-line strong{display:block}
.form-box{background:#fff;padding:25px;border:1px solid var(--line);border-radius:20px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-weight:700;font-size:14px}.field input,.field select,.field textarea{width:100%;border:1px solid #dcd6ce;border-radius:10px;background:#fffdf9;padding:11px 12px;color:var(--ink);outline:0}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(66,99,235,.1)}.field textarea{min-height:120px;resize:vertical}.form-note{color:var(--muted);font-size:12px;margin:12px 0 0}
.footer{background:#202536;color:#f4f6fb;padding:50px 0 22px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:30px}.footer h3{font-size:16px;margin-bottom:15px}.footer p,.footer a,.footer li{font-size:13px;color:#b9c0d0}.footer a:hover{color:#fff}.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800}.footer .ai-page-logo{background:#fff;border-radius:10px}.footer-bottom{border-top:1px solid #3a4152;margin-top:35px;padding-top:18px;color:#9ca5b8;font-size:12px;display:flex;justify-content:space-between;gap:15px}
.qr{width:104px;height:104px;object-fit:cover;border-radius:8px;margin-top:10px}
.float-actions{position:fixed;right:18px;bottom:18px;z-index:15;display:flex;flex-direction:column;gap:8px}.float-actions a{padding:10px 13px;border-radius:12px;background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:0 8px 25px rgba(32,37,54,.14);font-size:13px;font-weight:700}.float-actions a:first-child{background:var(--coral);color:#fff;border-color:var(--coral)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}.reveal.visible{opacity:1;transform:none}
@media(max-width:1050px){.nav-links a{padding:9px 6px;font-size:12px}.nav-cta{padding:10px 12px;font-size:12px}.service-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:780px){:root{--container:min(100% - 28px,680px)}.navbar{min-height:68px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:12px 14px;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:10px 8px}.nav-cta{display:none}.hero{padding:65px 0 58px}.hero-grid,.about-grid,.split,.form-layout{grid-template-columns:1fr;gap:30px}.hero-board{margin-top:8px}.hero-tile:nth-child(2),.hero-tile:nth-child(4){transform:none}.stats{grid-template-columns:repeat(2,1fr)}.section{padding:62px 0}.section-heading{display:block}.section-heading p{margin-top:14px}.process{grid-template-columns:1fr;gap:22px}.process:before{left:28px;top:27px;bottom:27px;width:2px;height:auto;right:auto}.step{display:grid;grid-template-columns:58px 1fr;text-align:left;gap:15px;align-items:center}.step-number{margin:0}.step h3,.step p{grid-column:2}.step h3{margin:0}.step p{margin-top:-18px}.case-grid,.price-grid,.testimonials,.article-grid{grid-template-columns:1fr}.price-card.featured{transform:none}.faq{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}
@media(max-width:480px){h1{font-size:40px}.stats{grid-template-columns:1fr 1fr}.stat strong{font-size:24px}.feature-list{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.footer-grid{grid-template-columns:1fr}.float-actions{right:10px;bottom:10px}}