* { margin:0; padding:0; box-sizing:border-box; }

body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:#fff;color:#1a1a2e;line-height:1.75;-webkit-font-smoothing:antialiased}

.wrap{max-width:min(90%,1800px);margin:0 auto;padding:0 24px}

a{text-decoration:none;color:inherit}

header{border-bottom:1px solid #eef0f5;position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(12px)}

.nav{display:flex;align-items:center;justify-content:space-between;height:68px}

.logo{font-size:20px;font-weight:800;color:#1a1a2e;white-space:nowrap}

.logo span{color:#2563eb}
.logo .logo-tag{font-size:13px;color:#8a90a3;font-weight:400;margin-left:2px}

.menu{display:flex;gap:22px;font-size:14px;color:#5a6178;font-weight:600}

.menu a:hover{color:#2563eb}

.nav-cta{background:#2563eb;color:#fff;padding:11px 20px;border-radius:8px;font-size:14px;font-weight:600;white-space:nowrap}

.nav-cta:hover{background:#1d4fd8}

/* HERO · 深色渐变 banner + 动态科技线条（两栏紧凑，矮版） */
.hero{position:relative;overflow:hidden;padding:78px 0 70px;color:#fff;background:linear-gradient(135deg,#1e3a8a 0%,#2563eb 50%,#1d4ed8 100%)}

.hero::before{content:"";position:absolute;inset:-40px;background-image:linear-gradient(rgba(96,165,250,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(96,165,250,.10) 1px,transparent 1px);background-size:54px 54px;animation:heroGrid 22s linear infinite;pointer-events:none}

@keyframes heroGrid{from{transform:translate(0,0)}to{transform:translate(54px,54px)}}

.hero::after{content:"";position:absolute;left:50%;top:-220px;width:960px;height:960px;transform:translateX(-50%);background:radial-gradient(circle,rgba(59,130,246,.40) 0%,rgba(59,130,246,0) 65%);animation:heroGlow 7s ease-in-out infinite;pointer-events:none}

@keyframes heroGlow{0%,100%{opacity:.85;transform:translateX(-50%) scale(1)}50%{opacity:1;transform:translateX(-50%) scale(1.08)}}

.hero-bg{position:absolute;inset:0;z-index:1;pointer-events:none;overflow:hidden}

.hero-bg svg{width:100%;height:100%}

.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.35fr .65fr;gap:48px;align-items:center}

.hero-left{text-align:left}

.hero-tag{display:inline-flex;align-items:center;gap:9px;padding:8px 18px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);color:#bfdbfe;font-size:13px;font-weight:600;margin-bottom:22px;backdrop-filter:blur(6px)}

.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:#38bdf8;box-shadow:0 0 10px #38bdf8}

.hero h1{font-size:clamp(31px,4.4vw,48px);font-weight:800;line-height:1.24;letter-spacing:-.5px;max-width:660px}

.hero h1 em{font-style:normal;background:linear-gradient(90deg,#60a5fa,#22d3ee);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}

.hero-sub{margin:20px 0 0;max-width:620px;font-size:16.5px;color:rgba(191,219,254,.8);line-height:1.8}

.hero-btns{margin-top:30px;display:flex;gap:16px;justify-content:flex-start;flex-wrap:wrap}

.hbtn{display:inline-flex;align-items:center;justify-content:center;padding:15px 32px;border-radius:999px;font-size:15.5px;font-weight:700;transition:all .25s;cursor:pointer}

.hbtn-main{background:#fff;color:#1e40af;box-shadow:0 0 20px rgba(255,255,255,.3)}

.hbtn-main:hover{background:#eff6ff;transform:translateY(-2px) scale(1.04);box-shadow:0 0 28px rgba(255,255,255,.45)}

.hbtn-ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.35)}

.hbtn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px)}

/* AI 平台标签 */
.hero-platforms{margin:28px 0 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-start;max-width:680px}

.hero-platforms .pl{padding:7px 16px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);font-size:13.5px;color:#dbeafe;transition:all .25s}

.hero-platforms .pl:hover{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.45);transform:translateY(-3px)}

.hero-platforms .pl.more{background:linear-gradient(90deg,#2563eb,#0891b2);border-color:transparent;color:#fff;font-weight:700}

/* 右侧 KPI 卡片 */
.hero-kpi{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:26px 28px;backdrop-filter:blur(8px);box-shadow:0 18px 46px rgba(2,10,40,.35)}

.hero-kpi .kpi{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.12)}

.hero-kpi .kpi:last-child{border-bottom:0}

.hero-kpi .kpi span{font-size:14px;color:rgba(191,219,254,.82)}

.hero-kpi .kpi b{font-size:28px;font-weight:800;line-height:1.1;background:linear-gradient(90deg,#60a5fa,#22d3ee);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}

/* SHOWCASE · 独立展示区（浅色背景 + 深色演示卡） */
.showcase{background:#f7f9fc;padding:72px 0}

.demo-visual{margin:0 auto;max-width:1100px;border:1px solid #e3e8f0;border-radius:18px;overflow:hidden;background:linear-gradient(to bottom right,#0f172a 0%,#13245a 55%,#1e3a8a 100%);box-shadow:0 22px 56px rgba(15,23,42,.22);text-align:left}

.visual-header{background:rgba(255,255,255,.07);padding:14px 20px;display:flex;gap:8px;align-items:center;border-bottom:1px solid rgba(255,255,255,.12)}

.visual-header i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.3)}

.visual-body{padding:26px 28px}

.visual-row{display:flex;align-items:center;gap:12px;margin-bottom:16px}

.visual-row:last-child{margin-bottom:0}

.visual-dot{width:8px;height:8px;border-radius:50%;background:#38bdf8;flex-shrink:0;box-shadow:0 0 10px rgba(56,189,248,.85)}

.visual-text{font-size:14.5px;color:rgba(226,240,255,.9)}

.visual-text b{color:#7dd3fc}

/* SECTION */
section{padding:72px 0}

.section-light{background:#f7f9fc}

.sec-head{text-align:center;max-width:780px;margin:0 auto 46px}

.sec-tag{font-size:13px;color:#2563eb;font-weight:700;letter-spacing:1.5px;text-transform:uppercase}

.sec-head h2{font-size:clamp(26px,3.5vw,34px);margin-top:10px;font-weight:800}

.sec-head p{margin-top:12px;color:#5a6178;font-size:16px}

/* PAIN —— 参考 style4 形态：圆角18 + hover上移 */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}

.pain-card{background:#fff;border:1px solid #e3e8f0;border-radius:18px;padding:26px;transition:transform .25s,box-shadow .25s,border-color .25s}

.pain-card:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.pain-num{font-size:13px;font-weight:800;color:#2563eb;margin-bottom:8px}

.pain-card h3{font-size:18px;margin-bottom:8px}

.pain-card p{font-size:14.5px;color:#5a6178}

.solve{margin-top:24px;padding:20px 26px;background:#eff4ff;border:1px solid #cfe0ff;border-radius:12px;color:#1d4fd8;font-size:15.5px;font-weight:600}

/* ADV */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

.adv-card{background:#fff;border:1px solid #e3e8f0;border-radius:14px;padding:28px;transition:transform .25s,box-shadow .25s,border-color .25s}

.adv-card:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.adv-card .ic{width:42px;height:42px;border-radius:10px;background:#eff4ff;color:#2563eb;display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:14px}

.adv-card h3{font-size:18px;margin-bottom:8px}

.adv-card p{font-size:14.5px;color:#5a6178}

/* GEO */
.geo-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}

.geo-list{list-style:none;display:flex;flex-direction:column;gap:14px}

.geo-list li{padding:14px 18px;background:#fff;border:1px solid #e3e8f0;border-radius:11px;font-size:15px;display:flex;gap:12px;align-items:flex-start;color:#5a6178;transition:transform .25s,box-shadow .25s,border-color .25s}

.geo-list li:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.geo-list .ck{color:#2563eb;font-weight:800;flex-shrink:0;line-height:1.6}

.geo-list li b{color:#2563eb;font-weight:700}

.compare{background:#fff;border:1px solid #e3e8f0;border-radius:16px;padding:28px;transition:transform .25s,box-shadow .25s,border-color .25s}

.compare:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.compare h4{font-size:17px;margin-bottom:16px;color:#2563eb}

.cmp-row{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px dashed #e3e8f0;font-size:14.5px;gap:16px}

.cmp-row:last-of-type{border-bottom:0}

.cmp-row span{color:#5a6178}

.cmp-row b{color:#1a1a2e;font-weight:700;text-align:right}

.cmp-foot{margin-top:16px;padding-top:16px;border-top:1px solid #e3e8f0;font-size:14.5px;font-weight:700;color:#1d4fd8;line-height:1.7}

.sla{display:flex;gap:16px;margin-top:20px}

.sla .box{flex:1;background:#1a1a2e;color:#fff;border-radius:12px;padding:18px;text-align:center}

.sla .box b{display:block;font-size:26px;color:#7fb0ff}

.sla .box span{font-size:13px;color:#c7d6ee}

/* SVC */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

.svc-card{background:#fff;border:1px solid #e3e8f0;border-radius:14px;padding:28px;transition:transform .25s,box-shadow .25s,border-color .25s}

.svc-card:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.svc-card h3{font-size:17px;margin-bottom:10px;color:#2563eb}

.svc-card p{font-size:14.5px;color:#5a6178}

.flow-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:30px}

.flow-step{background:#fff;border:1.5px solid #e3e8f0;border-radius:12px;padding:20px 12px;text-align:center;transition:transform .25s,box-shadow .25s,border-color .25s}

.flow-step:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.flow-step b{display:block;font-size:22px;color:#2563eb;margin-bottom:6px}

.flow-step p{font-size:13px;color:#5a6178}

/* CASE */
.case-hero{background:#1a1a2e;color:#fff;border-radius:18px;padding:36px;display:grid;grid-template-columns:1.2fr 1fr;gap:30px;align-items:center;transition:transform .25s,box-shadow .25s}

.case-hero:hover{transform:translateY(-4px);box-shadow:0 20px 50px rgba(26,26,46,.25)}

.case-hero h3{font-size:21px;margin-bottom:12px}

.case-hero p{color:#c7d6ee;font-size:14.5px}

.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}

.metric{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);border-radius:12px;padding:18px;text-align:center;transition:transform .25s,box-shadow .25s}

.metric:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(0,0,0,.25)}

.metric b{display:block;font-size:30px;color:#7fb0ff;font-weight:850}

.metric span{font-size:12.5px;color:#c7d6ee}

.clients{margin-top:28px;display:flex;flex-wrap:wrap;gap:11px}

.clients .c{background:#fff;border:1px solid #e3e8f0;border-radius:999px;padding:9px 17px;font-size:14px;color:#5a6178;transition:transform .25s,box-shadow .25s,border-color .25s}

.clients .c:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.note{margin-top:20px;font-size:13.5px;color:#5a6178;border-left:3px solid #2563eb;padding-left:14px}

/* FIT */
.fit-tags{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

.fit-tags .t{background:#fff;border:1px solid #e3e8f0;border-radius:12px;padding:15px 22px;font-size:15px;font-weight:600;transition:transform .25s,box-shadow .25s,border-color .25s}

.fit-tags .t:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.fit-tags .t b{color:#2563eb}

/* ABOUT */
.about{display:grid;grid-template-columns:1.4fr 1fr;gap:44px;align-items:center}

.about-text p{color:#5a6178;font-size:15.5px;margin-top:14px}

.about-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}

.as{background:#fff;border:1px solid #e3e8f0;border-radius:14px;padding:24px;text-align:center;transition:transform .25s,box-shadow .25s,border-color .25s}

.as:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.as b{display:block;font-size:32px;font-weight:850;color:#2563eb}

.as span{font-size:13.5px;color:#5a6178}

/* CTA —— 参考 senchengeo.cn：深蓝渐变 + 居中白字 + 双胶囊按钮 */
.cta-final{background:linear-gradient(to bottom right,#0f172a,#1e3a8a);padding:64px 0;text-align:center}

.cta-final .cta-inner{max-width:760px;margin:0 auto}

.cta-final h2{font-size:clamp(26px,3.5vw,34px);font-weight:800;color:#fff;margin-bottom:14px}

.cta-final p{color:rgba(191,219,254,.6);font-size:17px;margin-bottom:32px}

.cta-btns{display:flex;flex-direction:column;gap:16px;align-items:center}

@media(min-width:640px){.cta-btns{flex-direction:row;justify-content:center}}

.cta-btn-main,.cta-btn-ghost{display:inline-flex;align-items:center;justify-content:center;padding:16px 34px;border-radius:999px;font-weight:700;font-size:16px;transition:all .2s}

.cta-btn-main{background:#fff;color:#1d4ed8;box-shadow:0 0 20px rgba(255,255,255,.3)}

.cta-btn-main:hover{background:#f8fafc;transform:scale(1.05)}

.cta-btn-ghost{background:transparent;border:2px solid rgba(255,255,255,.3);color:#fff}

.cta-btn-ghost:hover{border-color:#fff}

.cta-note{margin-top:22px;font-size:12.5px;color:rgba(191,219,254,.5)}

/* FOOTER */
footer{padding:34px 0;border-top:1px solid #e3e8f0;background:#fff}

.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;font-size:13px;color:#8a90a3}

/* FLOAT */
.float{position:fixed;right:22px;bottom:26px;z-index:60}

.float a{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:50%;background:#2563eb;color:#fff;font-weight:700;font-size:13px;text-align:center;box-shadow:0 10px 26px rgba(37,99,235,.35)}

@keyframes floatPulse{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

@media(max-width:900px){
  .pain-grid,.adv-grid,.svc-grid,.geo-grid,.case-hero,.about{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .menu{display:none}
  form.signup{grid-template-columns:1fr}
  form.signup input,form.signup input.full{grid-column:span 1}
  form.signup button,form.signup .form-note{grid-column:span 1}
  .metrics{grid-template-columns:1fr}
}


/* FAQ */
.faq{padding:80px 0;background:#f7f9fc}

.faq-layout{display:grid;grid-template-columns:1.55fr 1fr;gap:36px;align-items:start}

.faq-list{display:flex;flex-direction:column;gap:14px;height:100%}

.faq-item{background:#fff;border:1px solid #e3e8f0;border-radius:14px;overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s}

.faq-item:hover{transform:translateY(-3px);border-color:#2563eb;box-shadow:0 10px 26px rgba(37,99,235,.1)}

.faq-item>summary{list-style:none;cursor:pointer;padding:20px 24px;font-size:16.5px;font-weight:700;color:#1a1a2e;display:flex;justify-content:space-between;align-items:center;gap:18px}

.faq-item>summary::-webkit-details-marker{display:none}

.faq-item>summary::after{content:'+';font-size:24px;font-weight:400;color:#2563eb;flex-shrink:0;line-height:1;transition:transform .2s}

.faq-item[open]>summary::after{content:'\2212'}

.faq-item .faq-a{padding:0 24px 22px;font-size:14.5px;color:#5a6178;line-height:1.9}

.news{background:#fff;border:1px solid #e3e8f0;border-radius:16px;padding:26px 24px}

.news h3{font-size:18px;color:#1a1a2e;margin-bottom:4px}

.news .news-sub{font-size:13px;color:#5a6178;margin-bottom:16px}

.news-item{display:flex;gap:12px;padding:11px 0;border-top:1px solid #e3e8f0;align-items:flex-start;text-decoration:none}

.news-item:first-of-type{border-top:none}

.news-date{flex-shrink:0;font-size:11.5px;font-weight:700;color:#2563eb;border:1px solid #e3e8f0;border-radius:6px;padding:4px 8px;white-space:nowrap;background:#eff4ff;margin-top:1px}

.news-item .t{font-size:14px;color:#1a1a2e;line-height:1.65}

.news-item .t b{color:#2563eb;font-weight:700}

.news-item .t i{display:block;font-style:normal;font-size:12.5px;color:#8a90a3;margin-top:4px}

.news-item:hover .t b{text-decoration:underline}

.news-cta{display:block;text-align:center;padding:13px;border-radius:10px;font-weight:700;font-size:14.5px;margin-top:18px;text-decoration:none;background:#2563eb;color:#fff}

.news-cta:hover{background:#1d4fd8}

/* mobile nav */
.mnav{display:none}

.mnav>summary{list-style:none;cursor:pointer;width:42px;height:42px;border-radius:10px;border:1px solid #e3e8f0;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;background:transparent;margin-left:auto}

.mnav>summary::-webkit-details-marker{display:none}

.mnav>summary span{display:block;width:20px;height:2px;background:#1a1a2e;border-radius:2px;transition:.25s}

.mnav[open]>summary span:nth-child(1){transform:translateY(7px) rotate(45deg)}

.mnav[open]>summary span:nth-child(2){opacity:0}

.mnav[open]>summary span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mnav-list{position:absolute;top:100%;left:0;right:0;background:#fff;border-top:1px solid #e3e8f0;padding:8px 24px 16px;display:flex;flex-direction:column;gap:2px;box-shadow:0 14px 30px rgba(0,0,0,.12);z-index:60}

.mnav-list a{padding:14px 4px;font-size:16px;font-weight:600;color:#1a1a2e;border-bottom:1px solid #e3e8f0}

.mnav-list a:last-child{border-bottom:0}

.mnav-cta{margin-top:10px;text-align:center;background:#2563eb;color:#fff;border-radius:10px;padding:14px!important}


/* mobile: 整体往外靠50% */
@media(max-width:900px){.wrap{max-width:100%;padding:0 12px}}


/* mobile: 紧凑排版，配合外扩50% */
@media(max-width:900px){
  section{padding:54px 0}
  .faq{padding:56px 0}
  .cta,.cta-section,.cta-final{padding:52px 0}
  .hero{padding:56px 0 46px}
  .hero .wrap{grid-template-columns:1fr;gap:30px}
  .hero-left{text-align:center}
  .hero h1,.hero-sub{margin-left:auto;margin-right:auto}
  .hero-btns,.hero-platforms{justify-content:center}
  .hero-platforms{margin-top:24px;gap:8px}
  .hero-platforms .pl{padding:6px 13px;font-size:12.5px}
  .hero-kpi{order:2}
  .demo-visual{margin-top:34px}
  .visual-body{padding:20px}
  .mnav-list a{border-bottom:1px solid #e3e8f0;color:#1a1a2e}
  .sec-head{margin-bottom:30px}
  .pain,.pain-card,.adv,.adv-card{padding:20px}
  .about-stats{gap:12px}
  .as{padding:18px}
  .faq-item>summary{padding:16px 16px;font-size:15.5px;gap:14px}
  .faq-item .faq-a{padding:0 16px 18px;font-size:14px}
  .news{padding:20px 18px}
  .news-item{padding:10px 0}
  .flow-step{padding:18px 10px}
}

/* 滚动揭示 */
.js .reveal{opacity:0;transform:translateY(24px)}

.reveal{transition:opacity .7s ease,transform .7s ease}

.reveal.show{opacity:1;transform:none}


/* PAGE HERO · 内页 banner（沿用首页深色科技背景） */
.page-hero{position:relative;overflow:hidden;padding:66px 0 58px;color:#fff;background:linear-gradient(135deg,#1e3a8a 0%,#2563eb 50%,#1d4ed8 100%)}

.page-hero .wrap{position:relative;z-index:2}

.page-hero::before{content:"";position:absolute;inset:-40px;background-image:linear-gradient(rgba(255,255,255,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.13) 1px,transparent 1px);background-size:54px 54px;animation:phGrid 22s linear infinite;pointer-events:none}

@keyframes phGrid{from{transform:translate(0,0)}to{transform:translate(54px,54px)}}

.page-hero::after{content:"";position:absolute;left:50%;top:-220px;width:960px;height:960px;transform:translateX(-50%);background:radial-gradient(circle,rgba(255,255,255,.38) 0%,rgba(255,255,255,0) 65%);animation:phGlow 7s ease-in-out infinite;pointer-events:none}

@keyframes phGlow{0%,100%{opacity:.85;transform:translateX(-50%) scale(1)}50%{opacity:1;transform:translateX(-50%) scale(1.08)}}

.page-hero .hero-bg{position:absolute;inset:0;z-index:1;pointer-events:none;overflow:hidden}

.page-hero .hero-bg svg{width:100%;height:100%}


.page-hero .hero-tag{margin-bottom:20px}

.page-hero h1{font-size:clamp(30px,4.4vw,46px);font-weight:800;line-height:1.24;letter-spacing:-.5px;max-width:940px}

.page-hero h1 em{font-style:normal;background:linear-gradient(90deg,#60a5fa,#22d3ee);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}

.page-hero .sub{margin:20px 0 0;max-width:900px;font-size:16.5px;color:rgba(191,219,254,.82);line-height:1.8}

.breadcrumb{font-size:13px;color:rgba(191,219,254,.7);margin-bottom:16px}

.breadcrumb a{color:#bfdbfe}

.breadcrumb a:hover{text-decoration:underline}


/* 通用按钮 */
.btn{display:inline-block;padding:14px 30px;border-radius:10px;font-weight:700;font-size:15px;cursor:pointer;transition:.2s}

.btn-primary{background:#2563eb;color:#fff;box-shadow:0 6px 18px rgba(37,99,235,.25)}

.btn-primary:hover{background:#1d4fd8;transform:translateY(-2px)}

.btn-ghost{background:transparent;color:#2563eb;border:2px solid #2563eb}

.btn-ghost:hover{border-color:#1d4fd8;color:#1d4fd8}

.menu a.active{color:#2563eb}


/* 引导段落 */
.lead{font-size:16.5px;color:#5a6178;line-height:1.95;max-width:900px}

.lead b{color:#1a1a2e}


/* 高亮结论框 */
.hl-box{margin-top:24px;padding:20px 26px;background:#eff4ff;border:1px solid #cfe0ff;border-radius:12px;color:#1d4fd8;font-size:16px;font-weight:600;line-height:1.85}


/* 三栏对比（竞价/SEO/GEO） */
.vs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}

.vs-card{background:#fff;border:1px solid #e3e8f0;border-radius:14px;padding:26px;transition:transform .25s,box-shadow .25s,border-color .25s}

.vs-card:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.vs-card h3{font-size:18px;margin-bottom:10px;padding-top:14px}

.vs-card p{font-size:14.5px;color:#5a6178;line-height:1.85}

.vs-card.warn{border-top:3px solid #f59e0b}

.vs-card.bad{border-top:3px solid #ef4444}

.vs-card.good{border-top:3px solid #2563eb}


/* 勾选清单网格 */
.chk-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}

.chk-item{background:#fff;border:1px solid #e3e8f0;border-radius:14px;padding:22px 24px;transition:transform .25s,box-shadow .25s,border-color .25s}

.chk-item:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.chk-item .t{display:flex;gap:10px;align-items:flex-start}

.chk-item .ck{color:#2563eb;font-weight:800;font-size:18px;line-height:1.5}

.chk-item h3{font-size:16.5px;color:#1a1a2e}

.chk-item p{margin-top:8px;color:#5a6178;font-size:14.5px;line-height:1.85}


/* 梯度套餐 */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

.tier{background:#fff;border:1px solid #e3e8f0;border-radius:16px;padding:28px;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s,border-color .25s}

.tier:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.tier.featured{border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.16)}

.tier .badge{display:inline-block;align-self:flex-start;font-size:12px;font-weight:700;color:#fff;background:#2563eb;padding:5px 12px;border-radius:999px;margin-bottom:14px}

.tier h3{font-size:19px;margin-bottom:6px}

.tier .tier-sub{font-size:13.5px;color:#2563eb;font-weight:700;margin-bottom:16px}

.tier ul{list-style:none;display:flex;flex-direction:column;gap:10px;margin-bottom:18px}

.tier li{font-size:14.5px;color:#5a6178;padding-left:22px;position:relative;line-height:1.7}

.tier li::before{content:"\2713";position:absolute;left:0;color:#2563eb;font-weight:800}


/* 流程竖向列表 */
.flow-list{display:flex;flex-direction:column;gap:14px}

.flow-row{display:grid;grid-template-columns:60px 1fr;gap:20px;background:#fff;border:1px solid #e3e8f0;border-radius:14px;padding:22px 24px;transition:transform .25s,box-shadow .25s,border-color .25s}

.flow-row:hover{transform:translateY(-3px);border-color:#2563eb;box-shadow:0 10px 26px rgba(37,99,235,.1)}

.flow-row .n{width:46px;height:46px;border-radius:12px;background:#eff4ff;color:#2563eb;font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center}

.flow-row h3{font-size:17px;margin-bottom:6px;color:#1a1a2e}

.flow-row p{font-size:14.5px;color:#5a6178;line-height:1.85}


/* 交付物清单 */
.doc-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}

.doc-list .d{background:#fff;border:1px solid #e3e8f0;border-radius:12px;padding:18px 20px;font-size:15px;font-weight:600;display:flex;gap:12px;align-items:center;color:#1a1a2e}

.doc-list .d .ic{color:#2563eb;font-size:18px}


/* 案例卡片 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}

.case-card{background:#fff;border:1px solid #e3e8f0;border-radius:16px;padding:26px;transition:transform .25s,box-shadow .25s,border-color .25s}

.case-card:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.case-card .cat{display:inline-block;font-size:12px;font-weight:700;color:#2563eb;background:#eff4ff;padding:5px 12px;border-radius:999px;margin-bottom:14px}

.case-card h3{font-size:17px;margin-bottom:12px;color:#1a1a2e}

.case-card .row{font-size:14px;color:#5a6178;line-height:1.8;margin-bottom:8px}

.case-card .row b{color:#1a1a2e}


/* 信息卡 */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}

.info-card{background:#fff;border:1px solid #e3e8f0;border-radius:14px;padding:24px;transition:transform .25s,box-shadow .25s,border-color .25s}

.info-card:hover{transform:translateY(-4px);border-color:#2563eb;box-shadow:0 12px 30px rgba(37,99,235,.12)}

.info-card h3{font-size:16px;color:#2563eb;margin-bottom:10px}

.info-card p{font-size:14.5px;color:#5a6178;line-height:1.95}


/* 理念三栏 */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}

.pillar{background:#fff;border:1px solid #e3e8f0;border-radius:14px;padding:24px}

.pillar h3{font-size:17px;margin-bottom:8px;color:#1a1a2e}

.pillar p{font-size:14.5px;color:#5a6178;line-height:1.85}


/* 分类卡 */
.cat-tags{display:flex;flex-wrap:wrap;gap:14px}

.cat-tag{background:#fff;border:1px solid #e3e8f0;border-radius:12px;padding:16px 22px;flex:1 1 220px;transition:transform .25s,box-shadow .25s,border-color .25s;text-decoration:none;color:inherit;display:block}

.cat-tag:hover{transform:translateY(-3px);border-color:#2563eb;box-shadow:0 10px 26px rgba(37,99,235,.1)}

.cat-tag b{display:block;margin-bottom:5px;font-size:15px;color:#2563eb}

.cat-tag span{font-size:13.5px;color:#5a6178;line-height:1.7}


/* 文章列表 */
.post-list{display:flex;flex-direction:column;gap:14px}

.post{display:block;background:#fff;border:1px solid #e3e8f0;border-radius:14px;padding:22px 24px;transition:transform .25s,box-shadow .25s,border-color .25s;text-decoration:none}

.post:hover{transform:translateY(-3px);border-color:#2563eb;box-shadow:0 10px 26px rgba(37,99,235,.1)}

.post .cat{font-size:12px;font-weight:700;color:#2563eb;background:#eff4ff;padding:4px 10px;border-radius:6px}

.post h3{font-size:17px;margin:12px 0 8px;color:#1a1a2e;line-height:1.5}

.post p{font-size:14.5px;color:#5a6178;line-height:1.8}

.post .more{margin-top:10px;color:#2563eb;font-weight:600;font-size:14px}

/* 分页（外层 div.pagination 包裹 TP 渲染的 ul.pagination） */
.pagination{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;margin:36px 0 4px;padding:0;list-style:none}
.pagination ul{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;margin:0;padding:0;list-style:none}
.pagination li{list-style:none}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 14px;border:1px solid #e3e8f0;border-radius:10px;background:#fff;color:#3a4256;font-size:14px;line-height:1;text-decoration:none;transition:border-color .2s,color .2s,box-shadow .2s}
.pagination a:hover{border-color:#2563eb;color:#2563eb;box-shadow:0 6px 16px rgba(37,99,235,.12)}
.pagination li.active span{background:linear-gradient(135deg,#1e3a8a,#2563eb);border-color:transparent;color:#fff;font-weight:700}
.pagination li.disabled span{color:#b6bdcc;background:#f5f7fb;border-color:#eef1f6;cursor:not-allowed}

/* 联系表单（浅色） */
.signup-form{background:#fff;border:1px solid #e3e8f0;border-radius:16px;padding:30px;display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:780px}

.signup-form .full{grid-column:span 2}

.signup-form label{font-size:13.5px;color:#5a6178;font-weight:600;display:block;margin-bottom:6px}

.signup-form input,.signup-form textarea,.signup-form select{width:100%;border:1px solid #e3e8f0;border-radius:9px;padding:12px 14px;font-size:15px;color:#1a1a2e;background:#fff;font-family:inherit}

.signup-form textarea{resize:vertical;min-height:90px}

.signup-form input:focus,.signup-form textarea:focus,.signup-form select:focus{outline:none;border-color:#2563eb}

.signup-form button{grid-column:span 2;background:#2563eb;color:#fff;border:0;padding:15px;border-radius:10px;font-weight:700;font-size:16px;cursor:pointer;transition:.2s}

.signup-form button:hover{background:#1d4fd8}


/* 移动端补充 */
@media(max-width:900px){
  .vs-grid,.doc-list,.info-grid,.pillars,.cat-tags,.chk-grid,.tier-grid,.case-grid{grid-template-columns:1fr}
  .signup-form{grid-template-columns:1fr}
  .signup-form .full{grid-column:span 1}
}



.vs-head{display:flex;align-items:center;gap:12px;padding:18px 22px;color:#fff;font-size:18px;font-weight:800}

.vs-ic{width:30px;height:30px;border-radius:8px;background:rgba(255,255,255,.22);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;flex-shrink:0}

.vs-body{padding:20px 22px 24px}

.vs-tag{display:inline-block;font-size:12px;font-weight:700;padding:5px 11px;border-radius:6px;margin-bottom:13px}

/* 竞价广告 —— 红 */
.vs-card.bad{border-color:#ef4444}

.vs-card.bad .vs-head{background:linear-gradient(135deg,#ef4444,#dc2626)}

.vs-card.bad .vs-tag{background:#fee2e2;color:#c0392b}

/* 传统 SEO —— 琥珀 */
.vs-card.warn{border-color:#f59e0b}

.vs-card.warn .vs-head{background:linear-gradient(135deg,#f59e0b,#d97706)}

.vs-card.warn .vs-tag{background:#fef3c7;color:#b45309}

/* GEO 优化 —— 蓝 */
.vs-card.good{border-color:#2563eb}

.vs-card.good .vs-head{background:linear-gradient(135deg,#2563eb,#1d4ed8)}

.vs-card.good .vs-tag{background:#dbeafe;color:#1d4ed8}



/* 文章详情排版 */
.article{max-width:840px;margin:0 auto}

.post-title{font-size:clamp(26px,3.6vw,38px);line-height:1.4;font-weight:800;color:#1a1a2e;margin-bottom:18px;letter-spacing:-.3px}

.post-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-bottom:26px;padding-bottom:22px;border-bottom:1px solid #e3e8f0;font-size:13px;color:#5a6178}

.post-meta .cat{font-size:12px;font-weight:700;color:#2563eb;background:#eff4ff;padding:5px 12px;border-radius:999px}

.post-meta .m{display:inline-flex;align-items:center;gap:5px}

.post-body{font-size:16.5px;color:#2a2f42;line-height:1.95}

.post-body .lead{font-size:17px;color:#1a1a2e;font-weight:600;line-height:1.95;margin-bottom:8px}

.post-body h3{font-size:20px;margin:32px 0 12px;color:#1a1a2e;font-weight:800}

.post-body p{margin-bottom:16px}

.post-body .note{margin-top:24px;padding:18px 22px;background:#eff4ff;border:1px solid #cfe0ff;border-radius:12px;color:#1d4fd8;font-size:15px;font-weight:600;line-height:1.8}
.post-nav{display:flex;justify-content:space-between;gap:16px;margin-top:30px;padding-top:22px;border-top:1px solid #e3e8f0}
.post-nav .pn{flex:1;min-width:0;font-size:14px;color:#5b6172;line-height:1.6}
.post-nav .pn span{display:inline-block;margin-right:6px;color:#8a90a3;font-size:13px}
.post-nav .pn a{color:#1e3a8a;text-decoration:none;word-break:break-all}
.post-nav .pn a:hover{text-decoration:underline}
.post-nav .next{text-align:right}

.hero-sub b{color:#7dd3fc;font-weight:700}

/* 右侧 AI 平台矩阵 */
.hero-kpi{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);border-radius:18px;padding:24px 26px;backdrop-filter:blur(8px);box-shadow:0 18px 46px rgba(30,58,138,.25)}

.hero-kpi .kpi-head{font-size:15px;font-weight:700;color:#dbeafe;margin-bottom:16px;display:flex;align-items:center;gap:8px}

.hero-kpi .kpi-head .bar{width:4px;height:16px;border-radius:2px;background:linear-gradient(180deg,#60a5fa,#22d3ee)}

.hero-plat{display:grid;grid-template-columns:repeat(2,1fr);gap:11px}

.hero-plat .pl{display:flex;align-items:center;gap:9px;padding:11px 13px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);font-size:14px;color:#e1ecff;font-weight:600;transition:all .25s}

.hero-plat .pl:hover{background:rgba(255,255,255,.14);border-color:rgba(96,165,250,.55);transform:translateY(-2px)}

.hero-plat .pl i{width:8px;height:8px;border-radius:50%;flex-shrink:0;background:linear-gradient(90deg,#60a5fa,#22d3ee);box-shadow:0 0 8px rgba(56,189,248,.85)}

@media(min-width:640px){.cta-btns{flex-direction:row;justify-content:center}}

@media(max-width:900px){
  .pain-grid,.adv-grid,.svc-grid,.geo-grid,.case-hero,.about{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .menu{display:none}
  form.signup{grid-template-columns:1fr}
  form.signup input,form.signup input.full{grid-column:span 1}
  form.signup button,form.signup .form-note{grid-column:span 1}
  .metrics{grid-template-columns:1fr}
}

@media(max-width:900px){.faq-layout{grid-template-columns:1fr;gap:28px}}

@media(max-width:900px){
  .nav-links,.menu{display:none}
  .nav-in>a.btn-primary,.nav>a.nav-cta{display:none}
  .mnav{display:block}
}