*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:86px;background:#fffdf9;-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#16131f;line-height:1.7;background:transparent;overflow-x:hidden;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:
radial-gradient(900px 520px at 6% -6%, #ffe5da 0%, rgba(255,229,218,0) 62%),
radial-gradient(860px 500px at 96% 0%, #e8dfff 0%, rgba(232,223,255,0) 60%),
radial-gradient(760px 520px at 50% 118%, #d8f6ef 0%, rgba(216,246,239,0) 62%),
#fffdf9}
img{max-width:100%;border:0}
a{color:#c9311a}
h1,h2,h3,h4{margin:0;letter-spacing:-.3px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.wrap{width:min(1160px,calc(100% - 40px));margin-inline:auto}
.section{padding:64px 0}
.section-soft{background:linear-gradient(180deg,rgba(255,241,233,.75),rgba(238,231,255,.6));border-top:1px solid rgba(22,19,31,.05);border-bottom:1px solid rgba(22,19,31,.05)}
.section-head{max-width:780px;margin:0 auto 40px;text-align:center}
.tag{display:inline-block;padding:5px 15px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:.5px;color:#b53017;background:rgba(255,90,60,.12);border:1px solid rgba(255,90,60,.24);margin-bottom:14px}
.section-head h2{font-size:clamp(23px,3.4vw,34px);line-height:1.34;font-weight:800;margin-bottom:12px}
.section-head p{color:#544e6b;font-size:15.5px;line-height:1.8}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:999px;font-size:15.5px;font-weight:700;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease}
.btn-primary{background:linear-gradient(100deg,#d93a1f,#f2682e);color:#fff;box-shadow:0 12px 26px rgba(217,58,31,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(217,58,31,.34)}
.btn-ghost{background:#fff;color:#16131f;border-color:rgba(22,19,31,.16)}
.btn-ghost:hover{border-color:rgba(217,58,31,.5);color:#b53017;transform:translateY(-2px)}
.btn-dark{background:#16131f;color:#fff;box-shadow:0 12px 26px rgba(22,19,31,.2)}
.btn-dark:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(22,19,31,.28)}
.btn-violet{background:linear-gradient(100deg,#5a2bd6,#8f4bff);color:#fff;box-shadow:0 12px 26px rgba(90,43,214,.26)}
.btn-violet:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(90,43,214,.32)}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
.reveal{opacity:1;transform:none;transition:none}
html{scroll-behavior:auto}
}
/* header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,253,249,.9);backdrop-filter:saturate(150%) blur(14px);-webkit-backdrop-filter:saturate(150%) blur(14px);border-bottom:1px solid rgba(22,19,31,.08)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:70px;position:relative}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#16131f;font-weight:800;font-size:17px;flex:0 0 auto}
.ai-page-logo{display:block;max-height:36px;width:auto}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
.nav-links a{display:block;padding:9px 11px;font-size:15px;font-weight:500;color:#3d3854;text-decoration:none;border-radius:10px;white-space:nowrap;transition:color .18s ease,background-color .18s ease}
.nav-links a:hover{color:#b53017;background:rgba(255,90,60,.1)}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:40px;border:1px solid rgba(22,19,31,.14);background:#fff;border-radius:12px;cursor:pointer;flex:0 0 auto}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:#16131f;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#16131f;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
/* hero */
.hero{position:relative;padding:64px 0 56px;overflow:hidden}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(64px);opacity:.55;pointer-events:none;z-index:0}
.hero::before{width:320px;height:320px;background:#ffcfbe;top:-90px;left:-70px;animation:floatA 13s ease-in-out infinite}
.hero::after{width:340px;height:340px;background:#d6c5ff;top:-60px;right:-90px;animation:floatB 15s ease-in-out infinite}
@keyframes floatA{0%,100%{transform:translate3d(0,0,0)}50%{transform:translate3d(24px,26px,0)}}
@keyframes floatB{0%,100%{transform:translate3d(0,0,0)}50%{transform:translate3d(-26px,20px,0)}}
.hero-inner{position:relative;z-index:2;max-width:920px;margin:0 auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:999px;background:#fff;border:1px solid rgba(22,19,31,.1);font-size:13.5px;font-weight:600;color:#4b4560;box-shadow:0 6px 18px rgba(22,19,31,.06);margin-bottom:20px}
.hero h1{font-size:clamp(28px,5.2vw,50px);line-height:1.3;font-weight:900;letter-spacing:-.8px;margin-bottom:18px}
.h1-brand{display:inline-block;padding:0 14px 6px;border-radius:14px;background:linear-gradient(100deg,#d93a1f,#f2682e);color:#fff;transform:rotate(-1.6deg);box-shadow:0 12px 26px rgba(217,58,31,.24)}
.hero-lead{font-size:clamp(15px,1.8vw,17px);color:#524c68;max-width:700px;margin:0 auto 26px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:24px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.hero-tags li{padding:7px 16px;border-radius:999px;background:#fff;border:1px solid rgba(22,19,31,.09);font-size:13.5px;color:#4b4560;font-weight:600;box-shadow:0 4px 12px rgba(22,19,31,.04)}
.metrics{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:46px}
.metric{background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:18px;padding:22px 18px;text-align:center;box-shadow:0 10px 26px rgba(22,19,31,.05);transition:transform .22s ease,box-shadow .22s ease}
.metric:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(22,19,31,.1)}
.metric strong{display:block;font-size:30px;font-weight:900;letter-spacing:-.6px;color:#b53017;line-height:1.2}
.metric span{display:block;font-size:13.5px;color:#5a5470;margin-top:4px}
/* about */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:start}
.about-text h3{font-size:19px;font-weight:800;margin-bottom:12px}
.about-text p{color:#544e6b;font-size:15.5px;line-height:1.85;margin-bottom:14px}
.about-list{display:grid;gap:12px;margin-top:22px}
.about-list li{position:relative;padding-left:26px;font-size:15px;color:#3d3854;line-height:1.7}
.about-list li::before{content:"";position:absolute;left:0;top:9px;width:12px;height:12px;border-radius:4px;background:linear-gradient(135deg,#d93a1f,#f2682e)}
.about-media{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.media-box{background:linear-gradient(135deg,#f7f0ff,#ffeee6);border:1px solid rgba(22,19,31,.07);border-radius:18px;overflow:hidden;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;padding:10px;transition:transform .24s ease,box-shadow .24s ease}
.media-box:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(22,19,31,.1)}
.media-box img{width:100%;height:100%;object-fit:contain;display:block;border-radius:12px}
.media-box.wide{grid-column:1/-1;aspect-ratio:16/9}
/* services */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.service-card{position:relative;background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:18px;padding:26px 22px 22px;overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.service-card::before{content:"";position:absolute;left:0;top:0;right:0;height:4px;background:var(--accent,#d93a1f)}
.service-card:hover{transform:translateY(-5px);box-shadow:0 20px 40px rgba(22,19,31,.1);border-color:rgba(22,19,31,.14)}
.service-card h3{font-size:17.5px;font-weight:800;margin-bottom:8px}
.service-card p{font-size:14.5px;color:#5a5470;line-height:1.72}
.model-cloud{margin-top:34px;background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:18px;padding:22px}
.model-cloud h3{font-size:15.5px;font-weight:800;margin-bottom:14px;color:#3d3854}
.model-cloud ul{display:flex;flex-wrap:wrap;gap:9px}
.model-cloud li{padding:6px 13px;border-radius:999px;background:#f7f3ff;border:1px solid rgba(122,60,255,.14);font-size:13px;color:#4b3a8c;font-weight:600;transition:background-color .18s ease,color .18s ease}
.model-cloud li:hover{background:#efe6ff;color:#4a1fb8}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:18px;padding:24px 20px;transition:transform .22s ease,box-shadow .22s ease}
.step:hover{transform:translateY(-5px);box-shadow:0 18px 36px rgba(22,19,31,.09)}
.step-num{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,#d93a1f,#f2682e);color:#fff;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.step h3{font-size:16.5px;font-weight:800;margin-bottom:8px}
.step p{font-size:14.5px;color:#5a5470;line-height:1.7}
/* industry tags */
.industry-tags{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.industry-tags span{padding:10px 20px;border-radius:999px;background:#fff;border:1px solid rgba(22,19,31,.1);font-weight:600;font-size:14.5px;color:#3d3854;transition:transform .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease}
.industry-tags span:hover{transform:translateY(-3px);border-color:rgba(217,58,31,.45);color:#b53017;box-shadow:0 12px 24px rgba(22,19,31,.08)}
/* network */
.network-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.network-card{background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:18px;padding:22px 20px;transition:transform .22s ease,box-shadow .22s ease}
.network-card:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(22,19,31,.09)}
.network-card h3{font-size:16px;font-weight:800;margin-bottom:8px}
.network-card p{font-size:14.5px;color:#5a5470;line-height:1.7}
.network-card b{display:block;color:#b53017;font-size:14.5px;margin-top:10px;font-weight:700;word-break:break-all}
/* timeline */
.timeline{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.tl-item{display:flex;gap:16px;background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:16px;padding:20px;transition:transform .22s ease,box-shadow .22s ease}
.tl-item:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(22,19,31,.08)}
.tl-dot{flex:0 0 auto;width:36px;height:36px;border-radius:12px;background:rgba(122,60,255,.12);color:#4a1fb8;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px}
.tl-item h3{font-size:16px;font-weight:800;margin-bottom:6px}
.tl-item p{font-size:14.5px;color:#5a5470;line-height:1.7}
/* cases */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:18px;overflow:hidden;transition:transform .24s ease,box-shadow .24s ease}
.case-card:hover{transform:translateY(-5px);box-shadow:0 20px 40px rgba(22,19,31,.1)}
.case-thumb{aspect-ratio:4/3;background:linear-gradient(135deg,#f6f1ff,#ffeee6);display:flex;align-items:center;justify-content:center;padding:10px}
.case-thumb img{width:100%;height:100%;object-fit:contain;display:block;border-radius:12px}
.case-body{padding:18px 20px 22px}
.case-body h3{font-size:16.5px;font-weight:800;margin-bottom:8px}
.case-body p{font-size:14.5px;color:#5a5470;line-height:1.7}
/* compare */
.compare-card{background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:22px;padding:28px;box-shadow:0 16px 40px rgba(22,19,31,.06)}
.compare-top{display:flex;align-items:center;gap:22px;flex-wrap:wrap;padding-bottom:22px;margin-bottom:22px;border-bottom:1px dashed rgba(22,19,31,.14)}
.score{display:flex;align-items:baseline;gap:6px}
.score-num{font-size:46px;font-weight:900;line-height:1;color:#b53017;letter-spacing:-2px}
.score-total{font-size:16px;font-weight:700;color:#6f6a83}
.stars{color:#f08a00;font-size:19px;letter-spacing:3px;line-height:1.2}
.score-meta p{margin-top:4px;font-size:14.5px;color:#544e6b}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:14px;border:1px solid rgba(22,19,31,.08)}
.compare-table{width:100%;border-collapse:collapse;min-width:660px;font-size:14.5px;background:#fff}
.compare-table th,.compare-table td{padding:14px 16px;text-align:left;border-bottom:1px solid rgba(22,19,31,.08);vertical-align:top;line-height:1.66}
.compare-table thead th{background:#fff3ee;color:#8a2a12;font-weight:800;font-size:14px;white-space:nowrap}
.compare-table td:first-child{font-weight:800;color:#16131f;white-space:nowrap;background:#fdfaf7}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody tr:hover td{background:#fdf6f1}
.compare-table td.yes{color:#1a7f61;font-weight:700}
/* token */
.token-note{margin-top:16px;font-size:13.5px;color:#6f6a83;text-align:center}
/* match */
.match-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.match-card{display:block;width:100%;text-align:left;background:#fff;border:1px solid rgba(22,19,31,.1);border-radius:16px;padding:20px;cursor:pointer;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.match-card strong{display:block;font-size:16px;color:#16131f;margin-bottom:6px;font-weight:800}
.match-card span{display:block;font-size:14px;color:#5a5470;line-height:1.65}
.match-card:hover{border-color:rgba(217,58,31,.45);transform:translateY(-4px);box-shadow:0 16px 34px rgba(22,19,31,.09)}
.match-card:focus-visible{outline:3px solid rgba(217,58,31,.35);outline-offset:2px}
/* help / wiki */
.help-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.help-card{background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:16px;padding:22px 20px;transition:transform .22s ease,box-shadow .22s ease}
.help-card:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(22,19,31,.08)}
.help-card h3{font-size:16px;font-weight:800;margin-bottom:8px}
.help-card p{font-size:14.5px;color:#5a5470;line-height:1.7}
.wiki-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.wiki-card{background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:16px;padding:20px;border-left:4px solid #7a3cff;transition:transform .22s ease,box-shadow .22s ease}
.wiki-card:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(22,19,31,.08)}
.wiki-card h3{font-size:16px;font-weight:800;margin-bottom:6px;color:#4a1fb8}
.wiki-card p{font-size:14.5px;color:#5a5470;line-height:1.7}
/* faq */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:16px;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease}
.faq-item.open{border-color:rgba(217,58,31,.4);box-shadow:0 14px 32px rgba(22,19,31,.08)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:18px 22px;background:none;border:0;text-align:left;font-size:15.5px;font-weight:700;color:#16131f;cursor:pointer;line-height:1.6}
.faq-q:hover{color:#b53017}
.faq-icon{position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:rgba(255,90,60,.12)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:#b53017;border-radius:2px;transform:translate(-50%,-50%);transition:transform .25s ease,opacity .25s ease}
.faq-icon::before{width:11px;height:2px}
.faq-icon::after{width:2px;height:11px}
.faq-item.open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{padding:0 22px 18px;font-size:14.5px;color:#544e6b;line-height:1.8}
/* reviews */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review-card{background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:18px;padding:22px;display:flex;flex-direction:column;gap:14px;transition:transform .22s ease,box-shadow .22s ease}
.review-card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(22,19,31,.09)}
.review-card p{font-size:14.5px;color:#3d3854;line-height:1.8}
.review-who{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid rgba(22,19,31,.07)}
.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#d93a1f,#7a3cff);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;flex:0 0 auto}
.review-who strong{display:block;font-size:14.5px;color:#16131f}
.review-who span{display:block;font-size:13px;color:#6f6a83}
/* articles */
.article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 22px}
.article-link{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 18px;background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:14px;text-decoration:none;color:#24203a;font-size:14.5px;font-weight:600;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease}
.article-link:hover{transform:translateX(4px);border-color:rgba(217,58,31,.4);color:#b53017;box-shadow:0 12px 26px rgba(22,19,31,.07)}
.article-link i{font-style:normal;color:#b53017;font-weight:800;flex:0 0 auto}
/* contact */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start}
.form-card{background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:20px;padding:28px;box-shadow:0 16px 40px rgba(22,19,31,.06)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:700;color:#3d3854}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid rgba(22,19,31,.16);border-radius:12px;background:#fff;font-size:15px;color:#16131f;font-family:inherit;transition:border-color .18s ease,box-shadow .18s ease}
.field input::placeholder,.field textarea::placeholder{color:#9a95ab}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#d93a1f;box-shadow:0 0 0 3px rgba(217,58,31,.16)}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.form-submit{margin-top:18px}
.form-submit .btn{width:100%}
.side-card{background:#fff;border:1px solid rgba(22,19,31,.09);border-radius:20px;padding:24px;box-shadow:0 16px 40px rgba(22,19,31,.06)}
.side-card h3{font-size:16.5px;font-weight:800;margin-bottom:14px}
.qr-box{width:170px;margin:0 auto 14px;padding:8px;border-radius:14px;background:#f7f3ff;border:1px solid rgba(122,60,255,.14)}
.qr-box img{display:block;width:100%;height:auto;border-radius:10px}
.qr-tip{text-align:center;font-size:13.5px;color:#5a5470;margin-bottom:18px}
.contact-list{display:grid;gap:10px;border-top:1px dashed rgba(22,19,31,.14);padding-top:16px}
.contact-list li{display:flex;gap:10px;font-size:14px;color:#3d3854;line-height:1.6;word-break:break-all}
.contact-list b{flex:0 0 76px;color:#6f6a83;font-weight:600}
.contact-list a{color:#b53017;text-decoration:none;font-weight:700}
.contact-list a:hover{text-decoration:underline}
/* agent */
.agent-band{background:linear-gradient(110deg,#241a33,#3a2352 46%,#5a2bd6);border-radius:24px;padding:40px 34px;display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;box-shadow:0 24px 52px rgba(58,35,82,.24)}
.agent-band h2{color:#fff;font-size:clamp(21px,2.8vw,28px);font-weight:800;margin-bottom:10px}
.agent-band p{color:#ded6f5;font-size:15px;line-height:1.8;max-width:620px}
.agent-actions{display:flex;gap:12px;flex-wrap:wrap}
.agent-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.agent-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
/* footer */
.site-footer{background:#16131f;color:#efeaf8;margin-top:0;padding:48px 0 22px}
.footer-top{display:grid;grid-template-columns:1.1fr 1.3fr .9fr;gap:34px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.12)}
.site-footer h3{color:#ffffff;font-size:15.5px;font-weight:800;margin-bottom:14px}
.footer-brand p{color:#c8c1dc;font-size:14px;line-height:1.8;margin-bottom:10px}
.footer-brand .brand-name{color:#fff;font-size:19px;font-weight:900;letter-spacing:.5px;display:block;margin-bottom:10px}
.friend-links{display:flex;flex-wrap:wrap;gap:9px}
.friend-links a{display:inline-block;padding:6px 13px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#e6e0f7;font-size:13.5px;text-decoration:none;transition:background-color .2s ease,color .2s ease,transform .2s ease}
.friend-links a:hover{background:#f2682e;border-color:#f2682e;color:#fff;transform:translateY(-2px)}
.footer-contact ul{display:grid;gap:9px}
.footer-contact li{font-size:14px;color:#c8c1dc;line-height:1.7;word-break:break-all}
.footer-contact a{color:#ffb79f;text-decoration:none}
.footer-contact a:hover{text-decoration:underline;color:#fff}
.footer-bottom{padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.footer-bottom p{font-size:13.5px;color:#a79fc0}
.footer-bottom a{color:#e6e0f7;text-decoration:none}
.footer-bottom a:hover{color:#fff;text-decoration:underline}
/* float tools */
.float-tools{position:fixed;right:18px;bottom:18px;z-index:95;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.float-btn{width:48px;height:48px;border-radius:16px;border:1px solid rgba(22,19,31,.1);background:#fff;color:#16131f;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 10px 26px rgba(22,19,31,.16);font-size:18px;font-weight:800;transition:transform .2s ease,box-shadow .2s ease}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(22,19,31,.22)}
.kefu-btn{background:linear-gradient(135deg,#d93a1f,#f2682e);color:#fff;border-color:transparent;font-size:13px;letter-spacing:.5px}
#backTop{opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease,transform .2s ease}
#backTop.show{opacity:1;visibility:visible}
.kefu-panel{width:252px;background:#fff;border:1px solid rgba(22,19,31,.1);border-radius:18px;box-shadow:0 20px 44px rgba(22,19,31,.18);padding:16px;display:none}
.kefu-panel.open{display:block}
.kefu-panel h4{font-size:14.5px;font-weight:800;margin-bottom:10px;color:#16131f}
.kefu-panel .qr-box{width:100%;margin-bottom:10px}
.kefu-panel ul{display:grid;gap:7px}
.kefu-panel li{font-size:13px;color:#4b4560;line-height:1.6;word-break:break-all}
.kefu-panel a{color:#b53017;font-weight:700;text-decoration:none}
.kefu-panel a:hover{text-decoration:underline}
/* responsive */
@media (max-width:1024px){
.nav-toggle{display:flex}
.nav-links{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;background:#fffdf9;border-bottom:1px solid rgba(22,19,31,.1);box-shadow:0 22px 40px rgba(22,19,31,.12);padding:8px 0 14px;max-height:calc(100vh - 70px);overflow-y:auto}
.nav-links.open{display:flex}
.nav-links a{padding:12px 22px;border-radius:0;font-size:16px}
.service-grid,.case-grid,.review-grid,.wiki-grid{grid-template-columns:repeat(2,1fr)}
.network-grid,.help-grid,.steps{grid-template-columns:repeat(2,1fr)}
.about-grid,.contact-grid{grid-template-columns:1fr}
.footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
.metrics{grid-template-columns:repeat(2,1fr)}
.article-list{grid-template-columns:1fr}
.match-grid{grid-template-columns:repeat(2,1fr)}
.timeline{grid-template-columns:1fr}
.section{padding:48px 0}
.hero{padding:44px 0 40px}
}
@media (max-width:640px){
.wrap{width:calc(100% - 32px)}
.service-grid,.case-grid,.review-grid,.wiki-grid,.network-grid,.help-grid,.steps,.match-grid,.form-grid{grid-template-columns:1fr}
.metrics{grid-template-columns:repeat(2,1fr);gap:12px}
.metric{padding:18px 12px}
.metric strong{font-size:24px}
.footer-top{grid-template-columns:1fr;gap:26px}
.about-media{grid-template-columns:1fr}
.media-box.wide{grid-column:auto;aspect-ratio:4/3}
.compare-card,.form-card,.side-card{padding:20px}
.agent-band{padding:28px 22px}
.hero h1{letter-spacing:-.4px}
.h1-brand{padding:0 10px 4px;border-radius:11px}
.review-card{padding:18px}
.float-tools{right:12px;bottom:12px}
.float-btn{width:44px;height:44px}
.kefu-panel{width:232px}
}