*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  font-size:16px;line-height:1.7;color:#101a33;
  background-color:#f5f7fd;
  background-image:
    radial-gradient(760px 460px at 4% -8%,rgba(99,102,241,.20),transparent 68%),
    radial-gradient(700px 440px at 98% 0%,rgba(14,165,233,.18),transparent 68%),
    radial-gradient(760px 520px at 52% 44%,rgba(236,72,153,.07),transparent 70%),
    linear-gradient(rgba(79,70,229,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(79,70,229,.045) 1px,transparent 1px);
  background-size:auto,auto,auto,48px 48px,48px 48px;
  background-repeat:no-repeat,no-repeat,no-repeat,repeat,repeat;
}
img{max-width:100%}
a{color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
section[id]{scroll-margin-top:86px}
.section{padding:76px 0}
.section-head{max-width:780px;margin:0 auto 40px;text-align:center}
.section-head.left{margin:0 0 34px;text-align:left}
.section-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.05em;color:#4338ca;background:linear-gradient(135deg,#eef0ff,#e4f6ff);border:1px solid rgba(79,70,229,.18)}
.section-head h2{font-size:clamp(23px,3.1vw,34px);margin:16px 0 14px;font-weight:800}
.section-head p{color:#56658a;font-size:15.5px;line-height:1.85}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(79,70,229,.12)}
.header-inner{display:flex;align-items:center;gap:16px;min-height:70px;position:relative}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;margin-right:auto}
.ai-page-logo{width:auto;max-height:38px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:16px;font-weight:800;color:#141d3a;letter-spacing:.01em}
.brand-text small{font-size:11.5px;color:#7a88a8;letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
.nav-links a{display:block;padding:9px 8px;font-size:13px;font-weight:600;color:#33415c;text-decoration:none;border-radius:8px;white-space:nowrap;transition:color .2s ease,background .2s ease}
.nav-links a:hover{color:#4338ca;background:rgba(79,70,229,.09)}
.nav-links a.ai-page-home-link{color:#4338ca}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-cta{padding:10px 18px;font-size:14px;border-radius:10px}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid rgba(79,70,229,.2);background:#fff;border-radius:11px;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:#3b3f8f;border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:12px;font-size:15px;font-weight:700;text-decoration:none;border:1px solid transparent;cursor:pointer;font-family:inherit;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease}
.btn:active{transform:translateY(0) scale(.985)}
.btn-primary{background:linear-gradient(135deg,#4f46e5,#0ea5e9);color:#fff;box-shadow:0 10px 24px rgba(79,70,229,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(79,70,229,.34)}
.btn-ghost{background:#fff;color:#3b2ea8;border-color:rgba(79,70,229,.28);box-shadow:0 6px 18px rgba(30,40,100,.06)}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(79,70,229,.16);border-color:rgba(79,70,229,.45)}
.btn-warm{background:linear-gradient(135deg,#f97316,#ec4899);color:#fff;box-shadow:0 10px 24px rgba(236,72,153,.26)}
.btn-warm:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(236,72,153,.32)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:66px 0 78px}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none;filter:blur(6px)}
.hero::before{width:340px;height:340px;left:-120px;top:-90px;background:radial-gradient(circle,rgba(99,102,241,.24),transparent 68%)}
.hero::after{width:420px;height:420px;right:-150px;bottom:-180px;background:radial-gradient(circle,rgba(14,165,233,.20),transparent 68%)}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:48px;align-items:start;position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.04em;color:#4338ca;background:linear-gradient(120deg,rgba(238,240,255,.95),rgba(228,246,255,.95));border:1px solid rgba(79,70,229,.2)}
.hero h1{font-size:clamp(27px,4.4vw,46px);font-weight:900;margin:18px 0 16px;letter-spacing:-.02em;color:#0d1730}
.hero-lead{color:#4e5d80;font-size:16px;line-height:1.9;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 24px}
.hero-points{display:grid;gap:10px}
.hero-points li{position:relative;padding-left:26px;font-size:14.5px;color:#3a4869}
.hero-points li::before{content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:50%;background:linear-gradient(135deg,#6366f1,#22d3ee);box-shadow:0 0 0 4px rgba(99,102,241,.12)}
.hero-aside{display:flex;flex-direction:column;gap:16px}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.stat-card{background:#fff;border:1px solid #e6ebfa;border-radius:16px;padding:16px 18px;box-shadow:0 10px 26px rgba(23,32,84,.07);transition:transform .25s ease,box-shadow .25s ease}
.stat-card:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(23,32,84,.12)}
.stat-card strong{display:block;font-size:27px;font-weight:900;letter-spacing:-.02em;color:#4f46e5}
.stat-card:nth-child(2) strong{color:#0ea5e9}
.stat-card:nth-child(3) strong{color:#ec4899}
.stat-card:nth-child(4) strong{color:#f97316}
.stat-card span{display:block;font-size:13px;color:#66739a;margin-top:2px}
.model-cloud{background:rgba(255,255,255,.78);border:1px solid #e7ebfa;border-radius:16px;padding:16px 18px;box-shadow:0 10px 26px rgba(23,32,84,.06)}
.model-cloud-title{font-size:12.5px;font-weight:700;color:#6a7799;letter-spacing:.05em;margin-bottom:10px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips li{font-size:12.5px;font-weight:600;padding:5px 11px;border-radius:999px;color:#3c4a70;background:linear-gradient(120deg,#f1f3ff,#e9f8ff);border:1px solid rgba(99,102,241,.15);transition:transform .2s ease,color .2s ease}
.chips li:hover{transform:translateY(-2px);color:#4338ca}

/* ---------- 卡片通用 ---------- */
.about-grid,.svc-grid,.solution-grid,.review-grid,.article-grid{display:grid;gap:18px}
.about-grid{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.about-card{background:#fff;border:1px solid #e7ebfa;border-radius:16px;padding:22px;box-shadow:0 10px 26px rgba(23,32,84,.06);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.about-card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(23,32,84,.12);border-color:rgba(99,102,241,.3)}
.about-card h3{font-size:16px;font-weight:800;margin-bottom:8px;color:#18234a}
.about-card p{font-size:14px;color:#586689;line-height:1.8}

.svc-grid{grid-template-columns:repeat(auto-fit,minmax(255px,1fr))}
.svc-card{position:relative;background:#fff;border:1px solid #e7ebfa;border-radius:16px;padding:24px 22px 22px;overflow:hidden;box-shadow:0 10px 26px rgba(23,32,84,.06);transition:transform .25s ease,box-shadow .25s ease}
.svc-card::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad,linear-gradient(90deg,#6366f1,#22d3ee))}
.svc-card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(23,32,84,.13)}
.svc-card:nth-child(6n+1){--grad:linear-gradient(90deg,#6366f1,#22d3ee)}
.svc-card:nth-child(6n+2){--grad:linear-gradient(90deg,#ec4899,#f97316)}
.svc-card:nth-child(6n+3){--grad:linear-gradient(90deg,#0ea5e9,#10b981)}
.svc-card:nth-child(6n+4){--grad:linear-gradient(90deg,#8b5cf6,#ec4899)}
.svc-card:nth-child(6n+5){--grad:linear-gradient(90deg,#f59e0b,#ef4444)}
.svc-card:nth-child(6n+6){--grad:linear-gradient(90deg,#14b8a6,#3b82f6)}
.svc-card h3{font-size:16.5px;font-weight:800;margin-bottom:9px;color:#18234a}
.svc-card p{font-size:14px;color:#586689;line-height:1.8}
.tag-more{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px;justify-content:center}
.tag-more li{font-size:13px;font-weight:600;color:#45527a;background:#fff;border:1px solid #e3e9fa;border-radius:999px;padding:7px 14px;transition:transform .2s ease,color .2s ease,border-color .2s ease}
.tag-more li:hover{transform:translateY(-2px);color:#4338ca;border-color:rgba(79,70,229,.35)}

/* ---------- 一站式制作 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px}
.step-card{position:relative;background:#fff;border:1px solid #e7ebfa;border-radius:16px;padding:24px 22px;box-shadow:0 10px 26px rgba(23,32,84,.06);transition:transform .25s ease,box-shadow .25s ease}
.step-card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(23,32,84,.12)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;font-size:15px;font-weight:900;color:#fff;background:linear-gradient(135deg,#4f46e5,#0ea5e9);margin-bottom:14px;box-shadow:0 8px 18px rgba(79,70,229,.3)}
.step-card:nth-child(2) .step-num{background:linear-gradient(135deg,#0ea5e9,#10b981);box-shadow:0 8px 18px rgba(14,165,233,.3)}
.step-card:nth-child(3) .step-num{background:linear-gradient(135deg,#ec4899,#f97316);box-shadow:0 8px 18px rgba(236,72,153,.3)}
.step-card:nth-child(4) .step-num{background:linear-gradient(135deg,#8b5cf6,#6366f1);box-shadow:0 8px 18px rgba(139,92,246,.3)}
.step-card h3{font-size:16px;font-weight:800;margin-bottom:8px;color:#18234a}
.step-card p{font-size:14px;color:#586689;line-height:1.8}

/* ---------- 行业方案 ---------- */
.solution-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.solution-card{background:#fff;border:1px solid #e7ebfa;border-radius:16px;padding:22px;box-shadow:0 10px 26px rgba(23,32,84,.06);transition:transform .25s ease,box-shadow .25s ease}
.solution-card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(23,32,84,.12)}
.solution-card h3{font-size:16px;font-weight:800;color:#18234a;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.solution-card h3::before{content:"";width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#6366f1,#22d3ee)}
.solution-card p{font-size:14px;color:#586689;line-height:1.8}

/* ---------- 服务网络 ---------- */
.network-panel{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:32px;background:#fff;border:1px solid #e7ebfa;border-radius:20px;padding:34px;box-shadow:0 14px 36px rgba(23,32,84,.08)}
.network-copy h3{font-size:20px;font-weight:800;color:#18234a;margin-bottom:12px}
.network-copy p{font-size:14.5px;color:#586689;line-height:1.85;margin-bottom:20px}
.region-list{display:flex;flex-wrap:wrap;gap:10px;align-content:flex-start}
.region-list li{font-size:13.5px;font-weight:600;color:#3c4a70;background:linear-gradient(120deg,#f1f3ff,#e9f8ff);border:1px solid rgba(99,102,241,.16);border-radius:10px;padding:10px 16px;transition:transform .2s ease,color .2s ease}
.region-list li:hover{transform:translateY(-2px);color:#4338ca}

/* ---------- 标准流程 ---------- */
.timeline{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.tl-item{background:#fff;border:1px solid #e7ebfa;border-radius:16px;padding:22px;box-shadow:0 10px 26px rgba(23,32,84,.06);transition:transform .25s ease,box-shadow .25s ease}
.tl-item:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(23,32,84,.12)}
.tl-index{font-size:12px;font-weight:800;letter-spacing:.12em;color:#7c88ad;margin-bottom:8px}
.tl-item h3{font-size:15.5px;font-weight:800;color:#18234a;margin-bottom:8px}
.tl-item p{font-size:13.8px;color:#586689;line-height:1.8}

/* ---------- 案例中心 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:18px}
.case-card{background:#fff;border:1px solid #e7ebfa;border-radius:18px;overflow:hidden;box-shadow:0 10px 26px rgba(23,32,84,.07);transition:transform .25s ease,box-shadow .25s ease}
.case-card:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(23,32,84,.13)}
.case-media{aspect-ratio:16/10;background:linear-gradient(135deg,#eef1ff,#e6f7ff);overflow:hidden}
.case-media img{width:100%;height:100%;object-fit:cover;display:block}
.case-body{padding:18px 20px 20px}
.case-body h3{font-size:15.5px;font-weight:800;color:#18234a;margin-bottom:6px}
.case-body p{font-size:13.6px;color:#586689;line-height:1.8}
.banner-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-top:18px}
.banner-item{border-radius:14px;overflow:hidden;border:1px solid #e7ebfa;background:#f3f6ff;aspect-ratio:16/10}
.banner-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}
.banner-item:hover img{transform:scale(1.04)}

/* ---------- 对比评测 ---------- */
.compare-wrap{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);gap:24px;align-items:start}
.score-card{background:linear-gradient(150deg,#211f6b,#3b2ea8 55%,#1e5fa8);color:#fff;border-radius:20px;padding:30px 26px;box-shadow:0 20px 44px rgba(45,42,140,.32);position:relative;overflow:hidden}
.score-card::after{content:"";position:absolute;width:220px;height:220px;right:-80px;bottom:-90px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.22),transparent 70%)}
.score-card h3{font-size:15px;font-weight:700;letter-spacing:.06em;color:#cfd6ff;margin-bottom:14px}
.score-num{display:flex;align-items:baseline;gap:8px;margin-bottom:10px}
.score-num strong{font-size:52px;font-weight:900;letter-spacing:-.03em;line-height:1;color:#fff}
.score-num span{font-size:15px;color:#c7d0ff}
.stars{font-size:19px;letter-spacing:4px;color:#ffc93c;margin-bottom:14px}
.score-card p{font-size:14px;color:#dfe4ff;line-height:1.85;position:relative;z-index:1}
.compare-table-wrap{background:#fff;border:1px solid #e7ebfa;border-radius:18px;padding:6px;box-shadow:0 14px 34px rgba(23,32,84,.08);overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:620px}
thead th{background:linear-gradient(120deg,#f3f5ff,#eaf7ff);color:#26325a;font-size:13.5px;font-weight:800;text-align:left;padding:14px 16px;white-space:nowrap}
thead th:first-child{border-radius:12px 0 0 12px}
thead th:last-child{border-radius:0 12px 12px 0}
tbody td{padding:13px 16px;font-size:13.6px;color:#4c5979;border-bottom:1px solid #eef1fa;line-height:1.7}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover td{background:#fafbff}
td.best{color:#2b2a86;font-weight:700}
td.best::before{content:"●";color:#4f46e5;font-size:9px;margin-right:7px;vertical-align:middle}

/* ---------- Token 比价 ---------- */
.price-hint{font-size:13.5px;color:#6a7799;text-align:center;margin-top:16px}

/* ---------- 加盟代理 ---------- */
.agent-band{background:linear-gradient(120deg,#1f1d6b,#3b2ea8 50%,#0e6aa8);border-radius:20px;padding:38px 34px;color:#fff;box-shadow:0 22px 46px rgba(45,42,140,.28);display:grid;grid-template-columns:minmax(0,1fr) auto;gap:26px;align-items:center;position:relative;overflow:hidden}
.agent-band::after{content:"";position:absolute;width:300px;height:300px;right:-100px;top:-140px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.16),transparent 70%)}
.agent-band h2{font-size:clamp(20px,2.6vw,27px);font-weight:800;margin-bottom:12px;color:#fff;letter-spacing:-.01em}
.agent-band p{font-size:14.5px;color:#dfe4ff;line-height:1.85;max-width:720px}
.agent-band .btn{position:relative;z-index:1}

/* ---------- 客户评价 ---------- */
.review-grid{grid-template-columns:repeat(auto-fit,minmax(285px,1fr))}
.review-card{background:#fff;border:1px solid #e7ebfa;border-radius:16px;padding:24px;box-shadow:0 10px 26px rgba(23,32,84,.06);display:flex;flex-direction:column;gap:14px;transition:transform .25s ease,box-shadow .25s ease}
.review-card:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(23,32,84,.12)}
.review-stars{color:#f59e0b;font-size:14px;letter-spacing:3px}
.review-card p{font-size:14px;color:#4e5c7f;line-height:1.85}
.review-user{display:flex;align-items:center;gap:11px;margin-top:auto;padding-top:6px;border-top:1px solid #f0f3fb}
.review-avatar{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;color:#fff;background:linear-gradient(135deg,#6366f1,#22d3ee);flex:0 0 38px}
.review-card:nth-child(2) .review-avatar{background:linear-gradient(135deg,#ec4899,#f97316)}
.review-card:nth-child(3) .review-avatar{background:linear-gradient(135deg,#0ea5e9,#10b981)}
.review-card:nth-child(4) .review-avatar{background:linear-gradient(135deg,#8b5cf6,#ec4899)}
.review-card:nth-child(5) .review-avatar{background:linear-gradient(135deg,#f59e0b,#ef4444)}
.review-card:nth-child(6) .review-avatar{background:linear-gradient(135deg,#14b8a6,#3b82f6)}
.review-name{font-size:14px;font-weight:800;color:#18234a;line-height:1.4}
.review-role{font-size:12.5px;color:#7b88a9;line-height:1.4}

/* ---------- 帮助中心 / 文章 ---------- */
.help-panel{background:#fff;border:1px solid #e7ebfa;border-radius:20px;padding:30px;box-shadow:0 14px 36px rgba(23,32,84,.08)}
.help-panel h3{font-size:17px;font-weight:800;color:#18234a;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.help-panel h3::before{content:"";width:5px;height:18px;border-radius:3px;background:linear-gradient(180deg,#6366f1,#22d3ee)}
.help-panel + .help-panel{margin-top:18px}
.article-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.article-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:10px}
.article-list a{display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:12px;background:#fafbff;border:1px solid #eef1fa;font-size:14px;color:#3d4b6f;text-decoration:none;transition:transform .2s ease,border-color .2s ease,color .2s ease,background .2s ease}
.article-list a::before{content:"→";color:#8b93c9;font-weight:700;transition:transform .2s ease}
.article-list a:hover{transform:translateX(3px);color:#4338ca;border-color:rgba(79,70,229,.34);background:#f4f6ff}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid #e7ebfa;border-radius:14px;box-shadow:0 8px 22px rgba(23,32,84,.05);overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease}
.faq-item.open{border-color:rgba(79,70,229,.34);box-shadow:0 12px 30px rgba(79,70,229,.12)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 22px;background:transparent;border:none;cursor:pointer;font-family:inherit;font-size:15px;font-weight:700;color:#1c2748;text-align:left;transition:color .2s ease}
.faq-q:hover{color:#4338ca}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:#4f46e5;border-radius:2px;transition:transform .3s ease}
.faq-icon::before{top:9px;left:2px;width:16px;height:2px}
.faq-icon::after{top:2px;left:9px;width:2px;height:16px}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 18px;font-size:14.4px;color:#4f5d80;line-height:1.85}

/* ---------- 联系方式 + 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:24px;align-items:start}
.contact-card{background:#fff;border:1px solid #e7ebfa;border-radius:20px;padding:30px;box-shadow:0 14px 36px rgba(23,32,84,.08)}
.contact-card h3{font-size:18px;font-weight:800;color:#18234a;margin-bottom:16px}
.contact-list{display:grid;gap:12px;margin-bottom:22px}
.contact-list li{display:flex;gap:12px;font-size:14px;color:#4c5979;line-height:1.7}
.contact-list b{flex:0 0 78px;color:#26325a;font-weight:700}
.contact-list a{color:#4338ca;text-decoration:none;font-weight:600}
.contact-list a:hover{text-decoration:underline}
.qr-box{display:flex;align-items:center;gap:16px;padding:16px;border-radius:14px;background:linear-gradient(120deg,#f4f6ff,#eefaff);border:1px solid rgba(99,102,241,.16)}
.qr-box img{width:104px;height:104px;object-fit:contain;border-radius:10px;background:#fff;padding:6px;display:block;flex:0 0 104px}
.qr-box p{font-size:13.5px;color:#4c5979;line-height:1.75}
.qr-box strong{color:#18234a;display:block;font-size:14.5px;margin-bottom:4px}
form.lead-form{display:flex;flex-direction:column;gap:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13.5px;font-weight:700;color:#33415c}
.field input,.field select,.field textarea{width:100%;padding:11px 14px;border:1px solid #dfe5f6;border-radius:10px;font-size:14.5px;font-family:inherit;color:#101a33;background:#fbfcff;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}
.field textarea{min-height:112px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#7c74f0;box-shadow:0 0 0 3px rgba(99,102,241,.16);background:#fff}
.form-note{font-size:12.8px;color:#7b88a9;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:linear-gradient(150deg,#111a36,#1b2150 60%,#131a3a);color:#c6d0ea;margin-top:76px;padding:48px 0 24px}
.footer-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:34px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;flex-direction:column;gap:12px}
.footer-brand .brand-line{display:flex;align-items:center;gap:10px}
.footer-brand img{max-height:36px;width:auto;display:block;background:#fff;border-radius:8px;padding:4px}
.footer-brand strong{font-size:16px;color:#fff;font-weight:800}
.footer-brand p{font-size:13.5px;color:#9aa8cd;line-height:1.8}
.footer-col h3{font-size:14px;color:#fff;font-weight:800;margin-bottom:14px;letter-spacing:.04em}
.friend-links{display:flex;flex-wrap:wrap;gap:9px}
.friend-links a{font-size:13px;color:#aebae0;text-decoration:none;padding:6px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);transition:color .2s ease,border-color .2s ease,transform .2s ease}
.friend-links a:hover{color:#fff;border-color:rgba(140,160,255,.6);transform:translateY(-2px)}
.footer-contact{display:flex;flex-wrap:wrap;gap:14px;margin-top:16px;font-size:13px;color:#9aa8cd}
.footer-contact a{color:#c6d0ea;text-decoration:none}
.footer-contact a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;padding-top:20px;font-size:12.8px;color:#8d9bc0}
.footer-bottom a{color:#aebae0;text-decoration:none}
.footer-bottom a:hover{color:#fff}

/* ---------- 浮动客服 & 返回顶部 ---------- */
.float-stack{position:fixed;right:18px;bottom:22px;z-index:90;display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.float-btn{width:52px;height:52px;border-radius:16px;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:#fff;font-family:inherit;box-shadow:0 12px 28px rgba(45,42,140,.28);transition:transform .22s ease,box-shadow .22s ease}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(45,42,140,.36)}
.float-service{background:linear-gradient(135deg,#4f46e5,#0ea5e9);flex-direction:column;gap:1px;line-height:1.15}
.float-service span{font-size:11px;font-weight:600;color:#e8eeff}
.float-top{background:linear-gradient(135deg,#64748b,#334155);display:none}
.float-top.show{display:flex}
.float-panel{position:fixed;right:18px;bottom:88px;z-index:95;width:250px;background:#fff;border:1px solid #e7ebfa;border-radius:18px;padding:18px;box-shadow:0 22px 50px rgba(23,32,84,.22);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s ease,transform .25s ease,visibility .25s}
.float-panel.open{opacity:1;visibility:visible;transform:translateY(0)}
.float-panel h4{font-size:14.5px;font-weight:800;color:#18234a;margin:0 0 12px}
.float-panel img{width:100%;max-width:180px;display:block;margin:0 auto 12px;border-radius:10px;border:1px solid #eef1fa}
.float-panel p{font-size:12.8px;color:#586689;line-height:1.75;text-align:center}
.float-panel a{color:#4338ca;text-decoration:none;font-weight:700}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .62s ease,transform .62s ease}
.reveal.in{opacity:1;transform:none}
.no-io .reveal{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation:none!important}
}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.hero::after{animation:floatY 9s ease-in-out infinite}

/* ---------- 响应式 ---------- */
@media (max-width:1120px){
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border:1px solid #e7ebfa;border-radius:0 0 16px 16px;
    padding:10px 14px 16px;box-shadow:0 22px 40px rgba(23,32,84,.14);max-height:70vh;overflow-y:auto;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 8px;font-size:14.5px;border-bottom:1px solid #f1f4fc}
  .nav-links a:last-child{border-bottom:none}
  .nav-cta{display:none}
}
@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .compare-wrap{grid-template-columns:1fr}
  .network-panel{grid-template-columns:1fr;padding:26px;gap:22px}
  .contact-grid{grid-template-columns:1fr}
  .agent-band{grid-template-columns:1fr;padding:30px 24px}
  .footer-top{grid-template-columns:1fr;gap:26px}
}
@media (max-width:720px){
  .section{padding:52px 0}
  .hero{padding:44px 0 54px}
  .section-head{margin-bottom:30px}
  .form-row{grid-template-columns:1fr}
  .stat-card strong{font-size:23px}
  .score-num strong{font-size:44px}
  .site-footer{margin-top:52px}
  .float-stack{right:12px;bottom:16px}
  .float-panel{right:12px;bottom:80px;width:calc(100vw - 24px);max-width:280px}
}
@media (max-width:480px){
  .btn{padding:12px 20px;font-size:14.5px}
  .hero-actions .btn{flex:1 1 auto}
  .brand-text small{display:none}
}