/* ============================================================
   现代简约浅色设计系统 (Modern Minimal · Light)
   覆盖全站 ec-* 组件 + 导航/页脚/Hero/预览窗/案例/FAQ/CTA/对比/表单
   主色：单一品牌蓝 var(--brand)，去红，大留白，克制阴影
   ============================================================ */
:root{
  --brand:#2F6BFF;
  --brand-d:#1B4FD6;
  --brand-2:#1E54E8;
  --brand-l:#EEF3FF;
  --ink:#0F172A;
  --ink-soft:#5B6B82;
  --ink-faint:#94A3B8;
  --bg:#FFFFFF;
  --bg-2:#F6F8FC;
  --line:#E8EDF4;
  --line-2:#F1F5F9;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 12px 32px -18px rgba(15,23,42,.18);
  --shadow-lg:0 30px 64px -30px rgba(15,23,42,.26);
  --maxw:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Inter","Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-size:var(--fs-15)}
a{color:inherit;text-decoration:none}
img{max-width:100%;border-radius:12px}
em{font-style:normal}
::selection{background:var(--brand);color:#fff}
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-thumb{background:#cdd6e4;border-radius:8px;border:3px solid var(--bg)}
::-webkit-scrollbar-thumb:hover{background:#b3c0d4}
:focus-visible{outline:3px solid rgba(47,107,255,.38);outline-offset:2px}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.center{text-align:center}
.mt-14{margin-top:14px}.mt-20{margin-top:20px}.mb-14{margin-bottom:14px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:800;font-size:var(--fs-15);
  padding:13px 24px;border-radius:11px;border:1.5px solid transparent;cursor:pointer;transition:.22s;line-height:1;font-family:inherit}
.btn--primary{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;box-shadow:0 12px 26px -12px rgba(47,107,255,.6)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -12px rgba(47,107,255,.72)}
.btn--brand{background:var(--brand);color:#fff}
.btn--brand:hover{background:var(--brand-d);transform:translateY(-2px)}
.btn--outline{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn--outline:hover{border-color:var(--brand-d);background:var(--brand-l);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand-d);transform:translateY(-2px)}
.btn--lg{padding:16px 32px;font-size:var(--fs-17)}
.btn--sm{padding:9px 16px;font-size:var(--fs-14)}

/* ============ 顶部通告条 ============ */
.ec-topbar{background:var(--brand-d);color:#fff;font-size:var(--fs-13);text-align:center;padding:9px 16px;letter-spacing:.3px}
.ec-topbar b{color:#BBD0FF}

/* ============ 导航 ============ */
.site-nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;gap:10px;padding:0 24px;height:68px}
.brand{display:flex;align-items:center;gap:11px;margin-right:auto;text-decoration:none}
.brand__mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--brand),var(--brand-d));
  color:#fff;font-weight:900;display:grid;place-items:center;font-size:var(--fs-18);box-shadow:0 8px 18px -8px rgba(47,107,255,.6)}
.brand__name{font-weight:900;font-size:var(--fs-17);color:var(--ink);line-height:1.05;display:flex;flex-direction:column}
.brand__name small{font-weight:500;font-size:var(--fs-11);color:var(--ink-soft);margin-top:2px;letter-spacing:.3px}
.nav-links{display:flex;gap:2px}
.nav-links a{font-size:var(--fs-15);font-weight:600;color:var(--ink-soft);padding:8px 14px;border-radius:9px;transition:.15s}
.nav-links a:hover{color:var(--brand);background:var(--brand-l)}
.nav-links a.on{color:var(--brand);background:var(--brand-l)}
.lang-switch{margin-left:8px}
.lang-switch a{font-size:var(--fs-12);font-weight:700;color:var(--ink-soft);padding:5px 9px;border-radius:8px;border:1px solid var(--line);background:#fff;transition:.15s}
.lang-switch a.on{background:var(--brand);color:#fff;border-color:transparent}
.nav-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;
  border:1px solid var(--line);border-radius:9px;background:#fff;cursor:pointer;padding:0}
.nav-burger span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.2s;margin:0 auto}
.site-nav.nav-open .nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-nav.nav-open .nav-burger span:nth-child(2){opacity:0}
.site-nav.nav-open .nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-cta{margin-left:10px}

/* ============ Hero ============ */
.ec-hero{position:relative;background:linear-gradient(180deg,#F3F7FF 0%,#FFFFFF 100%);color:var(--ink);overflow:hidden;padding:84px 0 88px}
.ec-hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(820px 460px at 86% -8%,rgba(47,107,255,.12),transparent 56%),
            radial-gradient(640px 380px at 2% 108%,rgba(47,107,255,.08),transparent 56%)}
.ec-hero .container{position:relative;display:grid;grid-template-columns:1.04fr .96fr;gap:52px;align-items:center}
.ec-hero h1{font-size:clamp(32px,4.6vw,54px);line-height:1.12;font-weight:900;letter-spacing:-.8px;margin:0 0 20px}
.ec-hero h1 em{background:linear-gradient(120deg,var(--brand),var(--brand-l));-webkit-background-clip:text;background-clip:text;color:transparent}
.ec-hero .sub{font-size:var(--fs-17);line-height:1.72;color:var(--ink-soft);max-width:520px;margin:0 0 28px}
.ec-hero .sub strong{color:var(--ink);font-weight:800}
.ec-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.ec-tag{font-size:var(--fs-13);font-weight:700;background:#fff;border:1px solid var(--line);color:var(--brand-d);
  padding:6px 14px;border-radius:999px;box-shadow:0 4px 12px -8px rgba(15,23,42,.2)}
.ec-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:34px;margin-top:40px;flex-wrap:wrap}
.hero-stats div b{display:block;font-size:var(--fs-30);font-weight:900;color:var(--brand);line-height:1;letter-spacing:-.5px}
.hero-stats div span{font-size:var(--fs-13);color:var(--ink-soft);margin-top:5px;display:block}

/* ============ 区块 ============ */
.ec-sec{padding:84px 0}
.ec-sec--gray{background:var(--bg-2)}
.ec-sec--blue{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff}
.ec-sec-head{text-align:center;max-width:780px;margin:0 auto 48px}
.ec-sec-head .kicker{display:inline-block;font-size:var(--fs-13);font-weight:800;letter-spacing:1.6px;
  color:var(--brand-d);background:var(--brand-l);padding:6px 14px;border-radius:999px;margin-bottom:14px}
.ec-sec-head h2{font-size:clamp(26px,3.2vw,38px);font-weight:900;letter-spacing:-.5px;margin:0 0 12px;line-height:1.22}
.ec-sec-head p{font-size:var(--fs-16);color:var(--ink-soft);line-height:1.8;margin:0}
.ec-sec--blue .ec-sec-head .kicker{color:#fff;background:rgba(255,255,255,.18)}
.ec-sec--blue .ec-sec-head p{color:rgba(255,255,255,.86)}
.ec-head{display:flex;align-items:baseline;gap:14px;margin-bottom:30px;flex-wrap:wrap}
.ec-head h2{font-size:clamp(24px,3vw,34px);font-weight:900;letter-spacing:-.4px;margin:0}
.ec-head .kicker{font-size:var(--fs-13);font-weight:800;letter-spacing:1.4px;color:var(--brand-d);text-transform:uppercase}

/* ============ logo 墙 ============ */
.ec-logos{display:flex;gap:14px 36px;justify-content:center;flex-wrap:wrap;align-items:center}
.ec-logos span{font-weight:800;font-size:var(--fs-15);color:var(--ink-faint);letter-spacing:.3px;white-space:nowrap;
  padding:6px 4px;transition:.2s}
.ec-logos span:hover{color:var(--brand)}

/* ============ 数据条 ============ */
.ec-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ec-stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 22px;text-align:center;
  position:relative;overflow:hidden;transition:.22s}
.ec-stat:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.ec-stat::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
.ec-stat b{display:block;font-size:var(--fs-40);font-weight:900;color:var(--brand);line-height:1;letter-spacing:-1px}
.ec-stat span{display:block;font-size:var(--fs-14);color:var(--ink-soft);margin-top:9px;line-height:1.5}

/* 真实 AI 命中横幅（数据来自客户 GEO 后台分享） */
.ec-hitbar{display:flex;align-items:center;gap:18px;flex-wrap:wrap;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;
  margin-bottom:26px;box-shadow:var(--shadow)}
.ec-hitbar b.brand{font-size:var(--fs-17);font-weight:900;color:var(--ink);line-height:1.35}
.ec-hitbar b.brand small{display:block;font-size:var(--fs-13);color:var(--ink-soft);font-weight:600;margin-top:2px}
.ec-hitbar .pfs{display:flex;gap:8px;flex-wrap:wrap}
.ec-hitbar .pf{background:#ecfdf5;color:var(--ok-d);border:1px solid var(--ok-soft);font-size:var(--fs-12);
  font-weight:700;padding:5px 11px;border-radius:999px}
.ec-hitbar .cnt{margin-left:auto;text-align:right}
.ec-hitbar .cnt b{display:block;font-size:var(--fs-26);font-weight:900;color:var(--brand);line-height:1}
.ec-hitbar .cnt span{font-size:var(--fs-12);color:var(--ink-soft)}
@media (max-width:760px){.ec-hitbar .cnt{margin-left:0;text-align:left}}

/* ============ 后台真实截图墙 ============ */
.ec-shots{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:0 0 6px}
.ec-shots figure{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;margin:0;transition:.22s}
.ec-shots figure:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--brand)}
.ec-shots img{display:block;width:100%;height:150px;object-fit:cover;object-position:top;border-bottom:1px solid var(--line)}
.ec-shots figcaption{font-size:var(--fs-13);font-weight:700;color:var(--ink-soft);text-align:center;padding:9px 6px}

/* ============ 平台命中分布条形图 ============ */
.ec-bars{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;box-shadow:var(--shadow)}
.ec-bar{display:grid;grid-template-columns:92px 1fr;gap:12px;align-items:center}
.ec-bar .nm{font-size:var(--fs-14);font-weight:800;color:var(--ink);text-align:right;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ec-bar .tr{position:relative;background:#f1f5f9;border-radius:999px;height:30px;overflow:hidden}
.ec-bar .fl{position:absolute;left:0;top:0;bottom:0;background:linear-gradient(90deg,var(--brand),var(--brand-2));border-radius:999px;display:flex;align-items:center;justify-content:flex-end;min-width:34px;transition:.4s}
.ec-bar .fl .cnt{font-size:var(--fs-13);font-weight:900;color:#fff;padding:0 10px}
@media (max-width:760px){
  .ec-shots{grid-template-columns:1fr 1fr}
  .ec-bar{grid-template-columns:74px 1fr}
}
@media (max-width:520px){
  .ec-shots{grid-template-columns:1fr}
}

/* ============ 栅格 ============ */
.ec-grid2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.ec-grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ec-grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}

/* ===== 一次提问，两种结局（正反对比）===== */
.vs-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.vs-card{border-radius:16px;padding:26px 26px 22px;position:relative;overflow:hidden}
.vs-card--lose{background:#f1f5f9;border:1px solid #e2e8f0}
.vs-card--win{background:#fff;border:2px solid var(--brand);box-shadow:0 18px 44px -20px rgba(47,107,255,.45)}
.vs-card--win::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2))}
.vs-head{font-size:var(--fs-16);font-weight:900;margin-bottom:12px}
.vs-card--lose .vs-head{color:#64748b}
.vs-card--win .vs-head{color:var(--brand-d)}
.vs-card ol{list-style:none;padding:0;margin:0;counter-reset:vs}
.vs-card ol li{counter-increment:vs;padding:11px 0 11px 36px;position:relative;font-size:var(--fs-15);
  line-height:1.65;border-bottom:1px dashed rgba(100,116,139,.28);color:var(--ink-soft)}
.vs-card ol li:last-child{border-bottom:0}
.vs-card ol li::before{content:counter(vs);position:absolute;left:0;top:10px;width:23px;height:23px;
  border-radius:50%;display:grid;place-items:center;font-size:var(--fs-12);font-weight:800}
.vs-card--lose ol li::before{background:#e2e8f0;color:#64748b}
.vs-card--win ol li::before{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff}
.vs-card ol li b{color:var(--ink)}
.vs-card--win ol li b{color:var(--brand-d)}
.vs-note{margin-top:14px;font-size:var(--fs-14);font-weight:700;line-height:1.6}
.vs-card--lose .vs-note{color:#94a3b8}
.vs-card--win .vs-note{color:var(--ok-d);background:#ecfdf5;border:1px solid var(--ok-soft);
  padding:10px 14px;border-radius:10px}
.vs-punch{margin-top:24px;text-align:center;background:#fff;border:1.5px dashed var(--brand);
  color:var(--brand-d);border-radius:12px;padding:14px 20px;font-size:var(--fs-15);font-weight:800}
@media (max-width:860px){.vs-grid{grid-template-columns:1fr}}

/* ===== Hero 平台徽章条 ===== */
.ec-hero-pfs{margin-top:36px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:center;
  color:#a9bdd0;font-size:var(--fs-13);font-weight:700;grid-column:1/-1}
.ec-hero-pfs .pf{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  color:var(--brand-100);padding:6px 14px;border-radius:999px;font-size:var(--fs-13);font-weight:700}

/* ============ 卡片 ============ */
.ec-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;transition:.25s;height:100%}
.ec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand)}
.ec-card .ic{width:52px;height:52px;border-radius:13px;background:var(--brand-l);color:var(--brand);
  display:grid;place-items:center;margin-bottom:16px;transition:.25s}
.ec-card:hover .ic{background:var(--brand);color:#fff}
.ec-card .ic svg{width:26px;height:26px}
.ec-card h3{font-size:var(--fs-19);margin:0 0 10px;font-weight:800}
.ec-card p{font-size:var(--fs-14);color:var(--ink-soft);line-height:1.8;margin:0 0 14px}
.ec-card .more{font-size:var(--fs-14);font-weight:800;color:var(--brand);display:inline-flex;align-items:center;gap:5px}
.ec-card .more::after{content:"→";transition:.2s}
.ec-card:hover .more::after{transform:translateX(4px)}

/* ============ 痛点 ============ */
.ec-pain{background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:0 14px 14px 0;
  padding:22px 24px;transition:.22s}
.ec-pain:hover{box-shadow:var(--shadow);transform:translateX(2px)}
.ec-pain b{display:block;font-size:var(--fs-16);margin-bottom:8px;color:var(--ink)}
.ec-pain span{font-size:var(--fs-14);color:var(--ink-soft);line-height:1.78}

/* ============ 步骤 ============ */
.ec-step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;position:relative;transition:.22s}
.ec-step:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--brand)}
.ec-step .n{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-d));
  color:#fff;font-weight:900;display:grid;place-items:center;margin-bottom:14px;font-size:var(--fs-17)}
.ec-step b{display:block;font-size:var(--fs-16);margin-bottom:6px}
.ec-step span{font-size:var(--fs-14);color:var(--ink-soft);line-height:1.72}

/* ============ 行业矩阵 ============ */
.ec-ind{display:grid;grid-template-columns:repeat(auto-fit,minmax(112px,1fr));gap:11px}
.ec-ind div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 8px;text-align:center;
  font-size:var(--fs-14);font-weight:700;color:var(--ink-soft);transition:.2s}
.ec-ind div:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}

/* ============ 案例 ============ */
.ec-case{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;display:block;transition:.25s;position:relative;overflow:hidden}
.ec-case::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
.ec-case:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--brand)}
.ec-case .tag{display:inline-block;font-size:var(--fs-12);font-weight:800;background:var(--brand-l);color:var(--brand-d);
  border:1px solid var(--brand-100);border-radius:999px;padding:4px 12px;margin-bottom:6px}
.ec-case .res{font-size:var(--fs-34);font-weight:900;color:var(--brand);line-height:1.05;letter-spacing:-1px;margin:6px 0 12px}
.ec-case h4{font-size:var(--fs-17);margin:0 0 8px}
.ec-case p{font-size:var(--fs-14);color:var(--ink-soft);line-height:1.75;margin:0 0 14px}
.ec-case .go{font-size:var(--fs-13);font-weight:800;color:var(--brand)}

/* ============ 证言 ============ */
.ec-quote{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 28px;position:relative;transition:.22s}
.ec-quote:hover{box-shadow:var(--shadow)}
.ec-quote .qm{font-family:Georgia,serif;font-size:var(--fs-62);line-height:1;color:var(--brand-l);position:absolute;top:6px;left:18px}
.ec-quote p{position:relative;font-size:var(--fs-15);color:var(--ink);line-height:1.9;margin:14px 0 16px}
.ec-quote .who{font-size:var(--fs-13);font-weight:800;color:var(--brand)}
.ec-quote .role{font-size:var(--fs-13);color:var(--ink-soft)}

/* ============ 对比表 ============ */
.ec-vs{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);max-width:880px;margin:0 auto}
.ec-vs table{width:100%;border-collapse:collapse;font-size:var(--fs-14);background:#fff;min-width:560px}
.ec-vs th,.ec-vs td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line-2)}
.ec-vs thead th{background:var(--brand);color:#fff;font-weight:700;font-size:var(--fs-14)}
.ec-vs td:first-child{font-weight:800;color:var(--ink);width:32%}
.ec-vs td.bad{color:#dc2626}
.ec-vs td.good{color:var(--ok-d);font-weight:700}

/* ============ CTA 条 ============ */
.ec-cta{background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;border-radius:var(--radius-lg);
  padding:46px 44px;display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap;
  box-shadow:0 28px 60px -30px rgba(47,107,255,.6)}
.ec-cta h2{font-size:clamp(22px,3vw,32px);font-weight:900;margin:0 0 8px}
.ec-cta p{color:rgba(255,255,255,.88);margin:0;font-size:var(--fs-15);max-width:580px;line-height:1.8}
.ec-cta .btn--primary{background:#fff;color:var(--brand-d)}
.ec-cta .btn--primary:hover{background:var(--brand-100);transform:translateY(-2px)}

/* ============ 表单 ============ */
.ec-form{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:700px}
.ec-form input,.ec-form textarea,.ec-form select{width:100%;padding:13px 15px;border:1px solid var(--line);border-radius:10px;
  font-size:var(--fs-14);font-family:inherit;background:#fff;color:var(--ink);transition:.18s}
.ec-form input:focus,.ec-form textarea:focus,.ec-form select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-l)}
.ec-form .full{grid-column:1/-1}
.ec-form .btn{justify-content:center}

/* ============ FAQ ============ */
.ec-faq{max-width:880px;margin:0 auto}
.ec-faq details{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:#fff;overflow:hidden;transition:.2s}
.ec-faq details:hover{border-color:var(--brand)}
.ec-faq details[open]{border-color:var(--brand);box-shadow:var(--shadow)}
.ec-faq summary{cursor:pointer;padding:16px 20px;font-weight:700;font-size:var(--fs-15);list-style:none;position:relative;padding-right:46px}
.ec-faq summary::-webkit-details-marker{display:none}
.ec-faq summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:var(--fs-20);color:var(--brand);font-weight:800}
.ec-faq details[open] summary::after{content:"–"}
.ec-faq .a{padding:0 20px 16px;font-size:var(--fs-14);color:var(--ink-soft);line-height:1.85}

/* ============ 页脚（深墨收尾） ============ */
.ec-foot{background:linear-gradient(180deg,#0F1B2E 0%,#0A1424 100%);color:#c2cee0;padding:0;position:relative;overflow:hidden}
.ec-foot::before{content:"";position:absolute;top:-46%;right:-8%;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,107,255,.16),transparent 70%);pointer-events:none}
.ec-foot .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.ec-foot-cta{padding:60px 0 50px;border-bottom:1px solid rgba(255,255,255,.1)}
.ec-foot-cta .inner{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;flex-wrap:wrap}
.ec-foot-cta h2{color:#fff;font-size:clamp(24px,3.1vw,36px);font-weight:900;letter-spacing:-.6px;line-height:1.24;margin:0 0 12px;max-width:650px}
.ec-foot-cta .sub{font-size:var(--fs-15);line-height:1.82;color:#9fb0c8;margin:0;max-width:610px}
.ec-foot-cta .pts{display:flex;gap:24px;flex-wrap:wrap;margin-top:22px}
.ec-foot-cta .pts span{font-size:var(--fs-13);color:#c4d2e8;display:flex;align-items:center;gap:7px}
.ec-foot-cta .pts span::before{content:"✓";color:var(--ok);font-weight:900;font-size:var(--fs-14)}
.ec-foot-cta .acts{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}
.ec-foot-cta .btn--primary{background:#fff;color:var(--brand-d);border-color:#fff}
.ec-foot-cta .btn--primary:hover{background:var(--brand-100);border-color:var(--brand-100);transform:translateY(-2px)}
.ec-foot-cta .btn--ghost{border-color:rgba(255,255,255,.36);color:#fff;background:transparent}
.ec-foot-cta .btn--ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.6)}
.ec-foot-badges{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:28px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.ec-foot-badge{display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);
  border-radius:12px;padding:15px 16px;transition:.2s}
.ec-foot-badge:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.2)}
.ec-foot-badge .ic{width:34px;height:34px;border-radius:10px;background:rgba(91,208,138,.16);color:var(--ok);display:grid;place-items:center;flex:0 0 auto}
.ec-foot-badge .ic svg{display:block}
.ec-foot-badge b{display:block;color:#fff;font-size:var(--fs-14);font-weight:800;line-height:1.35}
.ec-foot-badge span.tx{display:block;font-size:var(--fs-12);color:#8497b4;margin-top:3px;line-height:1.45}
.ec-foot-nav{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:34px;padding:50px 0 42px}
.ec-foot-brand .logo{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.ec-foot-brand .logo b{color:#fff;font-size:var(--fs-19);font-weight:900;letter-spacing:-.3px}
.ec-foot-brand p{font-size:var(--fs-13);line-height:1.85;color:#8497b4;margin:0;max-width:300px}
.ec-foot-brand .tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.f-contact-mini{display:flex;gap:16px;flex-wrap:wrap;margin-top:14px;font-size:var(--fs-13);color:var(--brand-100)}
.f-contact-mini span{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:4px 12px}
.ec-foot-brand .tags em{font-style:normal;font-size:var(--fs-12);font-weight:700;color:var(--brand-100);background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:4px 11px}
.ec-foot-col h5{color:#fff;font-size:var(--fs-13);font-weight:800;letter-spacing:1px;text-transform:uppercase;margin:0 0 16px;opacity:.92}
.ec-foot-col a{display:block;font-size:var(--fs-14);color:#b8c8de;padding:6px 0;transition:.15s;text-decoration:none}
.ec-foot-col a:hover{color:#fff;transform:translateX(3px)}
.ec-foot-bar{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;font-size:var(--fs-13);color:#7e90ad}
.ec-foot-bar .links{display:flex;gap:22px;flex-wrap:wrap}
.ec-foot-bar .links a{color:#7e90ad;text-decoration:none;transition:.15s}
.ec-foot-bar .links a:hover{color:#fff}

/* ============ 产品窗口（AI 对话 / 社媒后台） ============ */
.ec-pw{border-radius:18px;overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--line);background:#fff}
.ec-pw .pw-bar{display:flex;align-items:center;gap:7px;padding:12px 16px;background:#0c1830;border-bottom:1px solid rgba(255,255,255,.08)}
.pw-dot{width:11px;height:11px;border-radius:50%}
.ec-pw .pw-url{margin-left:12px;font-size:var(--fs-13);color:#9fb1cc;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.ai-chat{padding:20px;background:#F6F8FC;min-height:300px;font-size:var(--fs-14)}
.ai-msg{margin-bottom:14px;max-width:88%}
.ai-msg .who{font-size:var(--fs-12);color:var(--ink-faint);margin-bottom:5px;font-weight:700}
.ai-msg .bubble{padding:11px 15px;border-radius:13px;line-height:1.7}
.ai-msg.user{margin-left:auto}
.ai-msg.user .who{text-align:right}
.ai-msg.user .bubble{background:var(--brand);color:#fff;border-bottom-right-radius:4px}
.ai-msg.bot .bubble{background:#fff;border:1px solid var(--line);border-bottom-left-radius:4px}
.ai-msg.bot .bubble mark{background:#fff3bf;color:#7a4b00;padding:1px 4px;border-radius:4px;font-weight:700}
.ai-msg.bot .bubble .first{display:inline-block;background:linear-gradient(135deg,var(--brand),var(--brand-d));
  -webkit-background-clip:text;background-clip:text;color:transparent;font-weight:900}
.ai-badges{display:flex;gap:7px;flex-wrap:wrap;margin-top:6px}
.ai-badges span{font-size:var(--fs-12);font-weight:700;color:var(--brand);background:var(--brand-l);border:1px solid var(--brand-100);border-radius:999px;padding:3px 10px}
.dash{padding:20px;background:#fff;min-height:330px}
.dash-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
.dash-card{border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.dash-card .l{font-size:var(--fs-12);color:var(--ink-soft)}
.dash-card .v{font-size:var(--fs-24);font-weight:900;color:var(--ink);margin-top:3px}
.dash-card .v small{font-size:var(--fs-12);color:var(--ok-d);font-weight:700;margin-left:4px}
.dash-card .v.red{color:#dc2626}
.chart{margin:6px 0 16px}
.chart svg{width:100%;height:auto;display:block}
.dash-list .row{display:flex;align-items:center;gap:10px;padding:9px 0;border-top:1px solid var(--line-2);font-size:var(--fs-13)}
.dash-list .row .tag{font-size:var(--fs-11);font-weight:800;color:#fff;background:var(--brand);border-radius:6px;padding:2px 7px}
.dash-list .row .tag.org{background:var(--accent-2)}
.dash-list .row .tag.blu{background:var(--brand-d)}
.dash-list .row .t{color:var(--ink);font-weight:600}
.dash-list .row .m{margin-left:auto;color:var(--ink-faint);font-size:var(--fs-12)}

/* ============ 通用辅助 / 动效 ============ */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
.count{font-variant-numeric:tabular-nums}
.ec-line{height:1px;background:var(--line);border:0;margin:0}
.ec-tl5{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.ec-tl5 .ic{width:46px;height:46px;border-radius:12px;background:var(--brand-l);color:var(--brand);display:grid;place-items:center;margin-bottom:14px}
.ec-tl5 h3{font-size:var(--fs-17);margin:0 0 8px;font-weight:800}
.ec-tl5 p{font-size:var(--fs-14);color:var(--ink-soft);line-height:1.7;margin:0}

/* ============ 响应式 ============ */
@media (max-width:980px){
  .ec-hero .container{grid-template-columns:1fr;gap:34px}
  .ec-stats{grid-template-columns:1fr 1fr}
  .ec-grid3,.ec-grid4{grid-template-columns:1fr 1fr}
  .ec-grid2{grid-template-columns:1fr}
  .ec-cta{flex-direction:column;text-align:center;align-items:stretch;padding:34px 26px}
  .ec-foot .cols{grid-template-columns:1fr 1fr;gap:28px}
  .ec-foot-nav{grid-template-columns:1fr 1fr 1fr;gap:28px}
  .ec-foot-nav .ec-foot-brand{grid-column:1/-1}
  .nav-links{display:none}
  .nav-burger{display:flex}
  .site-nav.nav-open .nav-links{display:flex;position:absolute;top:68px;left:0;right:0;background:#fff;
    flex-direction:column;padding:12px 24px;gap:4px;border-bottom:1px solid var(--line);box-shadow:0 16px 30px -16px rgba(0,0,0,.2)}
  .site-nav.nav-open .nav-links a{padding:11px 14px}
}
@media (max-width:760px){
  .ec-sec{padding:58px 0}
  .ec-hero{padding:54px 0 58px}
  .ec-hero h1{font-size:var(--fs-30)}
  .ec-stats{grid-template-columns:1fr 1fr;gap:12px}
  .ec-grid3,.ec-grid4{grid-template-columns:1fr}
  .ec-form{grid-template-columns:1fr}
  .ec-cta{padding:30px 22px}
  .ec-foot-nav{grid-template-columns:1fr 1fr;gap:24px}
  .ec-foot-badges{grid-template-columns:1fr 1fr}
  .ec-foot-bar{flex-direction:column;align-items:flex-start;gap:12px}
  .hero-stats{gap:20px}
  .ec-pw .pw-url{font-size:var(--fs-11)}
}
@media (max-width:620px){
  .ec-tl5{grid-template-columns:1fr}
  .brand__name small{display:none}
  .nav-cta{display:none}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important;scroll-behavior:auto!important}
}

/* ============================================================
   新增：30 秒自测（参与式营销）
   ============================================================ */
.quiz__box{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 28px;box-shadow:var(--shadow-lg)}
.quiz__step{font-size:var(--fs-13);font-weight:800;letter-spacing:1.5px;color:var(--ink-faint);text-transform:uppercase;margin:0 0 6px}
.quiz__q h4{font-size:var(--fs-19);font-weight:900;margin:0 0 18px;line-height:1.4}
.quiz__opts{display:grid;grid-template-columns:1fr;gap:11px}
.quiz__opt{width:100%;text-align:left;background:#fff;border:1.5px solid var(--line);border-radius:12px;
  padding:14px 16px;font-size:var(--fs-15);font-weight:700;color:var(--ink);cursor:pointer;transition:.2s;font-family:inherit;line-height:1.45}
.quiz__opt:hover{border-color:var(--brand);background:var(--brand-l);transform:translateY(-1px)}
.quiz__opt.is-chosen{background:linear-gradient(135deg,var(--brand),var(--brand-d));border-color:var(--brand);color:#fff}
.quiz__res{animation:fadeUp .5s ease both}
.quiz__res-in{text-align:center;padding:14px 6px 6px}
.quiz__tag{display:inline-block;background:var(--brand-l);color:var(--brand-d);font-size:var(--fs-13);font-weight:800;
  padding:6px 16px;border-radius:999px;margin-bottom:12px;letter-spacing:.5px}
.quiz__res-in h4{font-size:var(--fs-21);font-weight:900;margin:0 0 10px}
.quiz__res-in p{font-size:var(--fs-15);color:var(--ink-soft);max-width:560px;margin:0 auto 22px;line-height:1.7}
.quiz__res-in .btn{display:inline-flex;align-items:center;justify-content:center;min-width:220px}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@media (max-width:560px){
  .quiz__box{padding:22px 16px}
  .quiz__res-in .btn{width:100%;min-width:0}
}

/* ============ 首页流程 · 时间承诺标签 ============ */
.step__time{display:inline-block;margin-top:10px;font-size:var(--fs-12);font-weight:800;color:var(--brand-d);
  background:var(--brand-l);border-radius:999px;padding:4px 12px;letter-spacing:.3px}

/* ============ GEO 行业窗口期标签 ============ */
.ec-ind small{display:block;margin-top:7px;font-size:var(--fs-11);font-weight:800;color:var(--brand-d);
  background:var(--brand-l);border-radius:999px;padding:3px 8px;letter-spacing:.3px}

/* ============ GEO 同行已进场（FOMO 横幅） ============ */
.ec-race{background:linear-gradient(135deg,#0F172A 0%,var(--brand-d) 60%,var(--brand) 130%);color:#fff;padding:64px 0;
  text-align:center;position:relative;overflow:hidden}
.ec-race::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 20% 0%,rgba(47,107,255,.22),transparent 60%),
  radial-gradient(600px 320px at 85% 100%,rgba(47,107,255,.28),transparent 60%);pointer-events:none}
.ec-race .container{position:relative}
.ec-race-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:0 auto 30px;max-width:900px}
.ec-race-it{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:24px 18px}
.ec-race-it b{display:block;font-size:var(--fs-34);line-height:1;margin-bottom:10px}
.ec-race-it h3{font-size:var(--fs-17);font-weight:900;margin:0 0 8px}
.ec-race-it p{font-size:var(--fs-14);color:#C7D3E8;margin:0;line-height:1.6}
.ec-race .btn--primary{background:#fff;color:var(--brand-d);box-shadow:0 14px 30px -12px rgba(0,0,0,.4)}
.ec-race .btn--primary:hover{background:var(--brand-100);transform:translateY(-2px)}
@media (max-width:760px){
  .ec-race-grid{grid-template-columns:1fr;max-width:420px}
  .ec-race{padding:48px 0}
}