*{margin:0;padding:0;box-sizing:border-box}
:root{
  --purple:#6d28d9;
  --purple-mid:#8b5cf6;
  --purple-soft:#a78bfa;
  --purple-light:#ede9fe;
  --ink:#1b1330;
  --ink-2:#3d3355;
  --ink-3:#6b6282;
  --line:#e6e0f5;
  --bg:#faf8ff;
  --white:#ffffff;
  --radius:18px;
  --shadow:0 10px 30px rgba(109,40,217,.10);
  --shadow-hover:0 18px 44px rgba(109,40,217,.20);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);
  background:
    radial-gradient(900px 500px at 8% -4%, #f0e9ff 0%, rgba(240,233,255,0) 60%),
    radial-gradient(800px 460px at 96% 6%, #f6e9ff 0%, rgba(246,233,255,0) 62%),
    linear-gradient(180deg,#faf8ff 0%, #f7f3ff 48%, #faf8ff 100%);
  line-height:1.75;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:90;background:rgba(250,248,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand .ai-page-logo{width:auto;max-height:38px}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.02em;color:var(--purple);white-space:nowrap}
.brand-text span{color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
.nav-links a{display:inline-block;padding:8px 11px;font-size:14px;color:var(--ink-2);font-weight:500;border-radius:9px;transition:color .25s,background .25s}
.nav-links a:hover{color:var(--purple);background:var(--purple-light)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;cursor:pointer;font-family:inherit;font-size:15px;font-weight:600;border-radius:999px;padding:12px 26px;transition:transform .25s,box-shadow .25s,background .25s,color .25s}
.btn-primary{background:linear-gradient(120deg,#7c3aed,#a855f7);color:#fff;box-shadow:0 10px 24px rgba(124,58,237,.30)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(124,58,237,.42)}
.btn-ghost{background:#fff;color:var(--purple);border:1px solid var(--line);box-shadow:0 4px 14px rgba(109,40,217,.08)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--purple-soft);box-shadow:0 12px 26px rgba(109,40,217,.16)}
.btn-sm{padding:9px 18px;font-size:14px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:11px;background:#fff;border:1px solid var(--line);cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--purple);border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-menu.open{display:block}
.mobile-menu ul{padding:10px 20px 18px}
.mobile-menu li a{display:block;padding:11px 4px;font-size:15px;color:var(--ink-2);border-bottom:1px dashed var(--line)}
.mobile-menu li:last-child a{border-bottom:none}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 84px}
.hero::before{content:"";position:absolute;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(139,92,246,.20),rgba(139,92,246,0) 68%);top:-260px;left:-160px;pointer-events:none;animation:floatA 16s ease-in-out infinite}
.hero::after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(216,180,254,.26),rgba(216,180,254,0) 70%);bottom:-240px;right:-140px;pointer-events:none;animation:floatB 18s ease-in-out infinite}
@keyframes floatA{0%,100%{transform:translate(0,0)}50%{transform:translate(40px,30px)}}
@keyframes floatB{0%,100%{transform:translate(0,0)}50%{transform:translate(-34px,-26px)}}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--purple);font-size:13px;font-weight:600;box-shadow:0 6px 18px rgba(109,40,217,.08)}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--purple-mid);display:inline-block;animation:pulse 2.2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(1.5)}}
.hero h1{font-size:clamp(30px,4.4vw,50px);line-height:1.22;letter-spacing:-.01em;margin:22px 0 20px;color:var(--ink);font-weight:800}
.hero h1 em{font-style:normal;color:var(--purple);position:relative;display:inline-block}
.hero h1 em::after{content:"";position:absolute;left:0;bottom:2px;width:100%;height:10px;background:linear-gradient(90deg,rgba(167,139,250,.42),rgba(216,180,254,.15));border-radius:4px;z-index:-1}
.hero p.lead{font-size:17px;color:var(--ink-3);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px}
.hero-tags span{font-size:13px;color:var(--ink-2);background:rgba(255,255,255,.85);border:1px solid var(--line);padding:6px 13px;border-radius:8px;transition:.25s}
.hero-tags span:hover{color:var(--purple);border-color:var(--purple-soft);transform:translateY(-2px)}

.hero-panel{position:relative;background:linear-gradient(160deg,#ffffff 0%,#f7f2ff 100%);border:1px solid var(--line);border-radius:26px;padding:26px;box-shadow:0 26px 60px rgba(109,40,217,.14)}
.hero-panel h2{font-size:15px;color:var(--ink-3);font-weight:600;letter-spacing:.06em;margin-bottom:18px;text-transform:uppercase}
.hero-metrics{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.metric{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 15px;transition:transform .3s,box-shadow .3s}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.metric b{display:block;font-size:24px;line-height:1.15;color:var(--purple);font-weight:800}
.metric span{font-size:12.5px;color:var(--ink-3)}
.hero-panel .panel-note{margin-top:16px;font-size:13px;color:var(--ink-3);background:var(--purple-light);border-radius:12px;padding:12px 14px;border:1px solid #ddd2fb}

/* ---------- 通用 section ---------- */
.section{padding:74px 0;position:relative}
.section-head{max-width:720px;margin:0 auto 46px;text-align:center}
.section-head .eyebrow{margin-bottom:16px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3;color:var(--ink);font-weight:800;letter-spacing:-.01em}
.section-head p{margin-top:14px;font-size:15.5px;color:var(--ink-3)}
.section-alt{background:linear-gradient(180deg,rgba(237,233,254,.55) 0%,rgba(250,248,255,0) 100%)}

/* ---------- 数据指标 ---------- */
.stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;position:relative;overflow:hidden}
.stat-card::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--purple-mid),var(--purple-soft))}
.stat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.stat-card b{font-size:30px;color:var(--purple);font-weight:800;display:block;line-height:1.1}
.stat-card h3{font-size:15px;margin:8px 0 6px;color:var(--ink)}
.stat-card p{font-size:13.5px;color:var(--ink-3)}

/* ---------- 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start}
.about-copy h2{font-size:clamp(23px,2.7vw,31px);line-height:1.3;margin-bottom:18px;font-weight:800}
.about-copy p{color:var(--ink-3);font-size:15.5px;margin-bottom:14px}
.about-list{display:grid;gap:12px;margin-top:22px}
.about-list li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:13px;padding:13px 16px;font-size:14.5px;color:var(--ink-2);transition:.28s}
.about-list li:hover{border-color:var(--purple-soft);box-shadow:var(--shadow);transform:translateX(4px)}
.about-list li strong{color:var(--purple);white-space:nowrap}
.about-visual{background:linear-gradient(150deg,#7c3aed,#a855f7 55%,#c084fc);border-radius:26px;padding:32px;color:#fff;box-shadow:0 26px 56px rgba(124,58,237,.28);position:relative;overflow:hidden}
.about-visual::after{content:"";position:absolute;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.12);right:-90px;bottom:-110px}
.about-visual h3{font-size:19px;margin-bottom:8px;color:#fff}
.about-visual p{font-size:14px;color:rgba(255,255,255,.88);margin-bottom:20px}
.visual-chips{display:flex;flex-wrap:wrap;gap:9px;position:relative;z-index:2}
.visual-chips span{font-size:13px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.34);border-radius:8px;padding:6px 12px;color:#fff}

/* ---------- 服务能力 ---------- */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.service-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:0 6px 20px rgba(109,40,217,.06);transition:transform .3s,box-shadow .3s,border-color .3s;position:relative}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--purple-soft)}
.service-icon{width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#ede9fe,#f5f3ff);margin-bottom:16px;color:var(--purple);font-size:20px;font-weight:800}
.service-card h3{font-size:17px;margin-bottom:9px;color:var(--ink)}
.service-card p{font-size:14px;color:var(--ink-3)}

/* ---------- 场景标签 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.scene-item{background:#fff;border:1px solid var(--line);border-radius:13px;padding:15px 16px;transition:.28s;display:flex;flex-direction:column;gap:6px}
.scene-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--purple-soft)}
.scene-item strong{font-size:14.5px;color:var(--ink)}
.scene-item span{font-size:12.8px;color:var(--ink-3);line-height:1.6}

/* ---------- 模型标签云 ---------- */
.model-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.model-cloud span{font-size:13.5px;padding:8px 15px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-2);transition:.25s;cursor:default}
.model-cloud span:hover{background:var(--purple);border-color:var(--purple);color:#fff;transform:translateY(-3px);box-shadow:0 10px 22px rgba(109,40,217,.26)}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.flow-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;box-shadow:0 6px 20px rgba(109,40,217,.06);transition:.3s;position:relative}
.flow-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.flow-step{display:inline-block;font-size:12.5px;font-weight:700;color:var(--purple);background:var(--purple-light);border-radius:8px;padding:3px 11px;margin-bottom:13px;letter-spacing:.04em}
.flow-card h3{font-size:16.5px;margin-bottom:8px}
.flow-card p{font-size:13.8px;color:var(--ink-3)}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 6px 20px rgba(109,40,217,.06);transition:.3s;display:flex;flex-direction:column}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.case-media{aspect-ratio:16/10;overflow:hidden;background:#f3eeff;display:flex;align-items:center;justify-content:center}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.case-card:hover .case-media img{transform:scale(1.05)}
.case-body{padding:20px 22px 24px}
.case-body h3{font-size:16.5px;margin-bottom:8px}
.case-body p{font-size:13.8px;color:var(--ink-3)}
.case-tag{display:inline-block;font-size:12px;color:var(--purple);background:var(--purple-light);border-radius:7px;padding:3px 10px;margin-bottom:11px}

/* ---------- 对比评测 ---------- */
.eval-hero{display:grid;grid-template-columns:.85fr 1.15fr;gap:30px;align-items:start;margin-bottom:30px}
.eval-score{background:linear-gradient(155deg,#7c3aed,#a855f7 60%,#c084fc);border-radius:24px;padding:34px 28px;color:#fff;text-align:center;box-shadow:0 24px 52px rgba(124,58,237,.30)}
.eval-score .stars{font-size:20px;letter-spacing:4px;color:#fde68a;margin-bottom:12px}
.eval-score b{display:block;font-size:52px;line-height:1;font-weight:800;color:#fff}
.eval-score b small{font-size:18px;font-weight:600;color:rgba(255,255,255,.8)}
.eval-score p{margin-top:12px;font-size:14px;color:rgba(255,255,255,.9)}
.eval-score .score-label{margin-top:18px;display:inline-block;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.36);border-radius:999px;padding:6px 18px;font-size:13px;color:#fff}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:16px;border:1px solid var(--line);background:#fff}
table.compare{width:100%;border-collapse:collapse;min-width:620px;font-size:14px}
table.compare th,table.compare td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
table.compare thead th{background:#f4efff;color:var(--ink);font-weight:700;font-size:14px;white-space:nowrap}
table.compare tbody tr:last-child td{border-bottom:none}
table.compare tbody tr:hover{background:#faf7ff}
table.compare td:first-child{font-weight:600;color:var(--ink-2);white-space:nowrap}
table.compare .good{color:var(--purple);font-weight:700}

/* ---------- 评论 ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:0 6px 20px rgba(109,40,217,.06);transition:.3s;display:flex;flex-direction:column;gap:14px}
.review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:var(--purple-soft)}
.review-stars{color:#f59e0b;font-size:15px;letter-spacing:2px}
.review-card p{font-size:14.3px;color:var(--ink-2);flex:1}
.review-user{display:flex;align-items:center;gap:11px;padding-top:14px;border-top:1px dashed var(--line)}
.avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,#8b5cf6,#c084fc);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;flex-shrink:0}
.review-user strong{display:block;font-size:14px;color:var(--ink)}
.review-user span{font-size:12.5px;color:var(--ink-3)}

/* ---------- Token 比价 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.price-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:.3s;position:relative;overflow:hidden}
.price-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:var(--purple-soft)}
.price-card .plan{font-size:13px;color:var(--purple);font-weight:700;letter-spacing:.06em;margin-bottom:10px}
.price-card h3{font-size:19px;margin-bottom:6px}
.price-card .price{font-size:30px;font-weight:800;color:var(--purple);line-height:1.2;margin-bottom:4px}
.price-card .price small{font-size:13px;color:var(--ink-3);font-weight:500}
.price-card ul{margin:16px 0 20px;display:grid;gap:9px}
.price-card li{font-size:13.8px;color:var(--ink-2);padding-left:18px;position:relative}
.price-card li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:var(--purple-soft)}
.price-card .btn{width:100%}

/* ---------- 文章 ---------- */
.article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.article-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;transition:.3s;display:flex;flex-direction:column;gap:10px}
.article-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--purple-soft)}
.article-item .cat{font-size:12px;color:var(--purple);background:var(--purple-light);border-radius:6px;padding:3px 9px;align-self:flex-start}
.article-item h3{font-size:15.5px;line-height:1.5;color:var(--ink)}
.article-item p{font-size:13.5px;color:var(--ink-3)}
.article-item .more{font-size:13px;color:var(--purple);font-weight:600;margin-top:auto}

/* ---------- 需求匹配/表单 ---------- */
.form-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:40px;align-items:start}
.form-copy h2{font-size:clamp(23px,2.7vw,31px);line-height:1.3;margin-bottom:16px;font-weight:800}
.form-copy>p{font-size:15.5px;color:var(--ink-3);margin-bottom:22px}
.contact-list{display:grid;gap:12px}
.contact-list li{background:#fff;border:1px solid var(--line);border-radius:13px;padding:14px 16px;font-size:14.2px;color:var(--ink-2);display:flex;gap:10px;align-items:flex-start}
.contact-list li b{color:var(--purple);white-space:nowrap}
.contact-list li a{color:var(--purple);word-break:break-all}
.qr-box{margin-top:18px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;display:flex;gap:16px;align-items:center}
.qr-box img{width:96px;height:96px;object-fit:contain;border-radius:10px;border:1px solid var(--line);background:#fff}
.qr-box div p{font-size:13.5px;color:var(--ink-3)}
.qr-box div strong{display:block;font-size:14.5px;color:var(--ink);margin-bottom:4px}

form.demand-form{background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px 28px;box-shadow:var(--shadow)}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.form-row input,.form-row select,.form-row textarea{width:100%;font-family:inherit;font-size:14.5px;color:var(--ink);background:#fbf9ff;border:1px solid var(--line);border-radius:11px;padding:12px 14px;outline:none;transition:.25s}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{border-color:var(--purple-mid);background:#fff;box-shadow:0 0 0 4px rgba(139,92,246,.12)}
.form-row textarea{min-height:108px;resize:vertical}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.demand-form .btn{width:100%;margin-top:6px}
.form-tip{font-size:12.5px;color:var(--ink-3);margin-top:12px;text-align:center}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .25s,box-shadow .25s}
.faq-item.open{border-color:var(--purple-soft);box-shadow:var(--shadow)}
.faq-q{width:100%;text-align:left;background:none;border:none;cursor:pointer;font-family:inherit;font-size:15.3px;font-weight:600;color:var(--ink);padding:18px 22px;display:flex;justify-content:space-between;align-items:center;gap:16px;transition:color .25s}
.faq-q:hover{color:var(--purple)}
.faq-q .icon{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--purple-light);color:var(--purple);display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;transition:transform .3s,background .3s}
.faq-item.open .faq-q .icon{transform:rotate(45deg);background:var(--purple);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 20px;font-size:14.2px;color:var(--ink-3)}

/* ---------- 友情链接 & 文章外链 ---------- */
.link-groups{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.link-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 24px}
.link-box h3{font-size:16.5px;margin-bottom:16px;color:var(--ink)}
.link-tags{display:flex;flex-wrap:wrap;gap:9px}
.link-tags a{font-size:13.5px;padding:7px 14px;border-radius:9px;background:#f8f5ff;border:1px solid var(--line);color:var(--ink-2);transition:.25s}
.link-tags a:hover{background:var(--purple);border-color:var(--purple);color:#fff;transform:translateY(-2px)}

/* ---------- 加盟代理 ---------- */
.join-band{background:linear-gradient(140deg,#5b21b6,#7c3aed 48%,#a855f7);border-radius:26px;padding:46px 40px;color:#fff;display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;box-shadow:0 26px 60px rgba(91,33,182,.32);position:relative;overflow:hidden}
.join-band::after{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:rgba(255,255,255,.10);right:-110px;top:-120px}
.join-band h2{font-size:clamp(22px,2.6vw,30px);color:#fff;margin-bottom:14px;font-weight:800}
.join-band p{font-size:15px;color:rgba(255,255,255,.88);margin-bottom:22px}
.join-band .hero-actions{margin-bottom:0}
.join-band .btn-light{background:#fff;color:var(--purple);box-shadow:0 12px 28px rgba(0,0,0,.18)}
.join-band .btn-light:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(0,0,0,.26)}
.join-band .btn-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.join-band .btn-outline:hover{background:rgba(255,255,255,.14)}
.join-side{position:relative;z-index:2;display:grid;gap:12px}
.join-side div{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);border-radius:13px;padding:14px 16px;font-size:14px;color:#fff}

/* ---------- Footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:50px 0 0;margin-top:0}
.footer-main{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:36px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:13.8px;color:var(--ink-3);line-height:1.8}
.footer-col h3{font-size:15px;color:var(--ink);margin-bottom:14px}
.footer-col ul{display:grid;gap:9px}
.footer-col li,.footer-col li a{font-size:13.6px;color:var(--ink-3);transition:color .25s}
.footer-col li a:hover{color:var(--purple)}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:13px;color:var(--ink-3)}
.footer-bottom .foot-links{display:flex;gap:16px;flex-wrap:wrap}
.footer-bottom .foot-links a{font-size:13px;color:var(--ink-3)}
.footer-bottom .foot-links a:hover{color:var(--purple)}

/* ---------- 浮动 ---------- */
.float-tools{position:fixed;right:18px;bottom:24px;z-index:120;display:flex;flex-direction:column;gap:10px}
.float-btn{width:48px;height:48px;border-radius:50%;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;box-shadow:0 10px 24px rgba(109,40,217,.28);transition:transform .25s,box-shadow .25s}
.float-btn:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(109,40,217,.38)}
.float-kf{background:linear-gradient(135deg,#7c3aed,#a855f7);color:#fff}
.float-top{background:#fff;color:var(--purple);border:1px solid var(--line);opacity:0;pointer-events:none;transition:.3s}
.float-top.show{opacity:1;pointer-events:auto}

/* ---------- 渐入 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn-ghost{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .about-grid{grid-template-columns:1fr;gap:30px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(3,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .eval-hero{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr}
  .article-list{grid-template-columns:repeat(2,1fr)}
  .form-wrap{grid-template-columns:1fr;gap:28px}
  .join-band{grid-template-columns:1fr;padding:36px 26px}
  .footer-main{grid-template-columns:1fr 1fr;gap:26px}
  .link-groups{grid-template-columns:1fr}
}
@media (max-width:680px){
  .section{padding:54px 0}
  .hero{padding:52px 0 60px}
  .hero p.lead{font-size:15.5px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 auto;min-width:140px;padding:12px 18px}
  .hero-metrics{grid-template-columns:1fr 1fr;gap:10px}
  .stats-band{grid-template-columns:1fr 1fr;gap:12px}
  .service-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .article-list{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .qr-box{flex-direction:row}
  .nav-actions .btn-primary{padding:10px 16px;font-size:13.5px}
  .about-visual{padding:26px 22px}
  .join-band{padding:30px 22px}
}
@media (max-width:400px){
  .scene-grid{grid-template-columns:1fr}
  .hero-metrics{grid-template-columns:1fr}
  .stats-band{grid-template-columns:1fr}
  .qr-box{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}