*{margin:0;padding:0;box-sizing:border-box}
:root{
  --ink:#16213a;
  --ink-2:#3b4660;
  --ink-3:#6b7590;
  --line:#e6e9f2;
  --bg:#f6f5ff;
  --card:#ffffff;
  --brand:#5b3df5;
  --brand-2:#ff5f8f;
  --brand-3:#12c8b1;
  --brand-4:#ffb020;
  --shadow:0 14px 40px -18px rgba(50,40,120,.28);
  --radius:20px;
}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(900px 520px at 8% -6%,rgba(91,61,245,.14),transparent 62%),
    radial-gradient(760px 460px at 96% 4%,rgba(255,95,143,.13),transparent 60%),
    radial-gradient(900px 600px at 50% 42%,rgba(18,200,177,.08),transparent 64%),
    linear-gradient(180deg,#f9f8ff 0%,#f6f5ff 46%,#f4f2fd 100%);
  background-attachment:fixed;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(91,61,245,.10);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand .ai-page-logo{width:auto;max-height:38px;object-fit:contain}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;letter-spacing:.5px}
.brand-text span{font-size:11px;color:var(--ink-3);letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:0;flex:1 1 auto;justify-content:center;flex-wrap:wrap}
.nav-links a{
  font-size:14px;color:var(--ink-2);padding:8px 11px;border-radius:9px;
  transition:color .2s,background .2s;position:relative;white-space:nowrap;
}
.nav-links a:hover{color:var(--brand);background:rgba(91,61,245,.07)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  border:none;cursor:pointer;font-family:inherit;font-weight:600;
  border-radius:12px;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s;
  text-align:center;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(120deg,var(--brand),#8a5bff 55%,var(--brand-2));
  color:#fff;padding:11px 22px;font-size:14px;
  box-shadow:0 12px 26px -12px rgba(91,61,245,.75);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 32px -14px rgba(91,61,245,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:#fff;color:var(--brand);padding:10px 20px;font-size:14px;
  border:1.5px solid rgba(91,61,245,.28);
}
.btn-ghost:hover{background:rgba(91,61,245,.06);transform:translateY(-2px)}
.btn-lg{padding:15px 32px;font-size:16px;border-radius:14px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
  background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.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-panel{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:12px 20px 20px;
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:block;padding:11px 10px;border-radius:10px;font-size:15px;color:var(--ink-2);
}
.mobile-panel a:hover{background:rgba(91,61,245,.07);color:var(--brand)}
.mobile-panel .btn{width:100%;margin-top:10px;display:flex}

/* ============ HERO 首屏（无图片） ============ */
.hero{position:relative;overflow:hidden;padding:76px 0 84px}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(520px 320px at 18% 12%,rgba(91,61,245,.20),transparent 68%),
    radial-gradient(460px 300px at 84% 20%,rgba(255,95,143,.20),transparent 66%),
    radial-gradient(520px 340px at 62% 96%,rgba(18,200,177,.16),transparent 68%);
  animation:heroFloat 16s ease-in-out infinite alternate;
}
@keyframes heroFloat{
  0%{transform:translate3d(0,0,0) scale(1)}
  100%{transform:translate3d(-16px,12px,0) scale(1.06)}
}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:start}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand);background:rgba(91,61,245,.10);
  border:1px solid rgba(91,61,245,.20);
  padding:6px 15px;border-radius:999px;margin-bottom:20px;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--brand-2);display:inline-block;animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
.hero h1{
  font-size:44px;line-height:1.24;letter-spacing:-.5px;font-weight:800;
  margin-bottom:18px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--brand),var(--brand-2) 58%,var(--brand-4));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:16.5px;color:var(--ink-2);max-width:600px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px}
.hero-tags span{
  font-size:12.5px;color:var(--ink-2);background:#fff;
  border:1px solid var(--line);border-radius:999px;padding:5px 13px;
  box-shadow:0 4px 14px -10px rgba(50,40,120,.4);
}
.hero-side{display:grid;gap:14px}
.metric-card{
  background:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.9);
  border-radius:16px;padding:18px 20px;
  box-shadow:var(--shadow);backdrop-filter:blur(6px);
  display:flex;align-items:center;gap:14px;
  transition:transform .28s ease,box-shadow .28s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:0 22px 46px -20px rgba(50,40,120,.42)}
.metric-ico{
  width:46px;height:46px;flex:0 0 46px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;color:#fff;
}
.metric-ico.c1{background:linear-gradient(135deg,#5b3df5,#8a5bff)}
.metric-ico.c2{background:linear-gradient(135deg,#ff5f8f,#ff9a3d)}
.metric-ico.c3{background:linear-gradient(135deg,#12c8b1,#4ad6a0)}
.metric-body strong{display:block;font-size:17px;letter-spacing:.2px}
.metric-body span{font-size:12.5px;color:var(--ink-3)}

/* ============ 通用区块 ============ */
.section{padding:74px 0}
.section-head{max-width:760px;margin:0 auto 44px;text-align:center}
.section-kicker{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:2.4px;
  color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{font-size:32px;line-height:1.32;letter-spacing:-.4px;margin-bottom:12px}
.section-head p{font-size:15.5px;color:var(--ink-3)}

/* 平台介绍 */
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:start}
.intro-panel{
  background:linear-gradient(150deg,rgba(91,61,245,.075),rgba(255,95,143,.055) 60%,rgba(18,200,177,.06));
  border:1px solid rgba(91,61,245,.13);border-radius:var(--radius);padding:34px;
}
.intro-panel h2{font-size:28px;line-height:1.34;margin-bottom:16px}
.intro-panel p{font-size:15px;color:var(--ink-2);margin-bottom:14px}
.intro-points{list-style:none;display:grid;gap:11px;margin-top:20px}
.intro-points li{
  display:flex;gap:11px;align-items:flex-start;font-size:14.5px;color:var(--ink-2);
  background:#fff;border-radius:12px;padding:12px 15px;border:1px solid var(--line);
}
.intro-points li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:8px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
}
.intro-list{display:grid;gap:14px}
.intro-item{
  background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px 22px;
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.intro-item:hover{transform:translateX(5px);border-color:rgba(91,61,245,.34);box-shadow:var(--shadow)}
.intro-item h3{font-size:16px;margin-bottom:5px}
.intro-item p{font-size:14px;color:var(--ink-3)}

/* 数据条 */
.stats-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  background:linear-gradient(120deg,#221a55,#3a2482 55%,#5b3df5);
  border-radius:var(--radius);padding:34px 28px;color:#fff;
  box-shadow:0 26px 60px -30px rgba(50,30,140,.9);
}
.stat-item{text-align:center;padding:6px 8px}
.stat-item strong{display:block;font-size:29px;line-height:1.2;letter-spacing:-.5px}
.stat-item span{font-size:13px;color:rgba(255,255,255,.76)}
.stat-item::after{content:"";display:block;width:34px;height:3px;border-radius:3px;background:rgba(255,255,255,.28);margin:10px auto 0}

/* 服务卡片 */
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:26px 24px;overflow:hidden;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.svc-card::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2),var(--brand-4));
  transform:scaleX(0);transform-origin:left;transition:transform .34s ease;
}
.svc-card:hover{transform:translateY(-6px);box-shadow:0 24px 50px -24px rgba(50,40,120,.4);border-color:rgba(91,61,245,.24)}
.svc-card:hover::before{transform:scaleX(1)}
.svc-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;margin-bottom:15px;
  font-size:15px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--brand),#8a5bff);
}
.svc-card:nth-child(3n+2) .svc-num{background:linear-gradient(135deg,#ff5f8f,#ff9a3d)}
.svc-card:nth-child(3n+3) .svc-num{background:linear-gradient(135deg,#12c8b1,#43c8a4)}
.svc-card h3{font-size:17px;margin-bottom:8px}
.svc-card p{font-size:14px;color:var(--ink-3)}

/* 一站式制作 - 场景标签云 */
.scene-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:34px;box-shadow:var(--shadow);
}
.scene-tags{display:flex;flex-wrap:wrap;gap:10px}
.scene-tags span{
  font-size:13.5px;color:var(--ink-2);background:#f7f6ff;
  border:1px solid rgba(91,61,245,.16);border-radius:10px;padding:8px 14px;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s;
}
.scene-tags span:hover{transform:translateY(-3px);background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#fff;border-color:transparent}
.scene-note{margin-top:22px;font-size:14px;color:var(--ink-3);border-top:1px dashed var(--line);padding-top:18px}

/* 行业方案 + 服务网络 */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;box-shadow:0 16px 40px -30px rgba(50,40,120,.5);
}
.panel h2{font-size:24px;margin-bottom:8px}
.panel > p.sub{font-size:14px;color:var(--ink-3);margin-bottom:20px}
.solution-list{display:grid;gap:12px}
.solution-list li{
  list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:flex-start;
  padding:13px 15px;border-radius:12px;background:#faf9ff;border:1px solid #eeeafd;
  transition:background .22s,transform .22s;
}
.solution-list li:hover{background:#f3f0ff;transform:translateX(4px)}
.solution-list b{font-size:14.5px;font-weight:700;flex:0 0 auto}
.solution-list em{font-style:normal;font-size:13px;color:var(--ink-3);text-align:right}
.net-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.net-item{
  border-radius:13px;padding:15px 16px;background:linear-gradient(140deg,#f8f6ff,#fff);
  border:1px solid #ece8ff;
}
.net-item strong{display:block;font-size:14.5px;margin-bottom:3px}
.net-item span{font-size:12.5px;color:var(--ink-3)}

/* 流程时间线 */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.timeline::before{
  content:"";position:absolute;left:0;right:0;top:26px;height:2px;
  background:linear-gradient(90deg,rgba(91,61,245,.5),rgba(255,95,143,.5),rgba(18,200,177,.5));
}
.tl-step{position:relative;text-align:center;padding-top:0}
.tl-dot{
  width:54px;height:54px;margin:0 auto 16px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;color:#fff;position:relative;z-index:1;
  background:linear-gradient(135deg,var(--brand),#8a5bff);
  box-shadow:0 12px 26px -12px rgba(91,61,245,.8);
  transition:transform .28s ease;
}
.tl-step:hover .tl-dot{transform:scale(1.08)}
.tl-step:nth-child(2) .tl-dot{background:linear-gradient(135deg,#7a4bff,#a06bff)}
.tl-step:nth-child(3) .tl-dot{background:linear-gradient(135deg,#ff5f8f,#ff8f5f)}
.tl-step:nth-child(4) .tl-dot{background:linear-gradient(135deg,#ffb020,#ff8a20)}
.tl-step:nth-child(5) .tl-dot{background:linear-gradient(135deg,#12c8b1,#43c8a4)}
.tl-step h3{font-size:15.5px;margin-bottom:6px}
.tl-step p{font-size:13px;color:var(--ink-3);padding:0 4px}

/* 案例中心 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .28s ease,box-shadow .28s ease;
}
.case-card:hover{transform:translateY(-6px);box-shadow:0 26px 52px -26px rgba(50,40,120,.42)}
.case-thumb{background:#f3f1ff;overflow:hidden}
.case-thumb img{width:100%;height:auto;object-fit:contain;transition:transform .4s ease}
.case-card:hover .case-thumb img{transform:scale(1.04)}
.case-body{padding:20px 22px 24px}
.case-body .tag{
  display:inline-block;font-size:12px;font-weight:700;color:var(--brand);
  background:rgba(91,61,245,.09);border-radius:999px;padding:3px 11px;margin-bottom:10px;
}
.case-body h3{font-size:16.5px;margin-bottom:7px}
.case-body p{font-size:13.8px;color:var(--ink-3)}

/* 对比评测 */
.rate-panel{
  display:grid;grid-template-columns:.8fr 1.2fr;gap:26px;align-items:start;
}
.rate-box{
  background:linear-gradient(160deg,#241a5c,#452a9e 58%,#6b3df5);
  border-radius:var(--radius);padding:34px 30px;color:#fff;
  box-shadow:0 28px 62px -32px rgba(50,30,140,.9);
}
.rate-box .rb-top{font-size:13px;letter-spacing:2px;color:rgba(255,255,255,.7);margin-bottom:14px}
.rate-score{display:flex;align-items:baseline;gap:8px;margin-bottom:6px}
.rate-score strong{font-size:56px;line-height:1;letter-spacing:-2px;font-weight:800}
.rate-score span{font-size:16px;color:rgba(255,255,255,.72)}
.stars{color:#ffcf4d;font-size:19px;letter-spacing:4px;margin:10px 0 16px}
.rate-desc{font-size:13.6px;color:rgba(255,255,255,.82);line-height:1.8}
.rate-box .btn{width:100%;margin-top:22px;background:#fff;color:#3a2482}
.rate-box .btn:hover{background:#f2eeff}
.table-scroll{overflow-x:auto;border-radius:16px;border:1px solid var(--line);background:#fff}
table.compare{width:100%;border-collapse:collapse;min-width:600px;font-size:14px}
table.compare thead th{
  background:linear-gradient(120deg,#f5f2ff,#fdf2f7);
  color:var(--ink);font-size:13.5px;text-align:left;padding:15px 18px;
  border-bottom:1px solid var(--line);font-weight:700;white-space:nowrap;
}
table.compare tbody td{
  padding:14px 18px;border-bottom:1px solid #f1f0f8;color:var(--ink-2);vertical-align:top;
}
table.compare tbody tr:last-child td{border-bottom:none}
table.compare tbody tr:hover{background:#fbfaff}
td.highlight{color:var(--brand);font-weight:700;background:rgba(91,61,245,.045)}
.badge-best{
  display:inline-block;font-size:11px;font-weight:700;color:#fff;
  background:linear-gradient(120deg,var(--brand-2),var(--brand-4));
  border-radius:999px;padding:2px 9px;margin-left:6px;vertical-align:middle;
}

/* 客户评论 */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px 24px;
  display:flex;flex-direction:column;gap:14px;
  transition:transform .28s ease,box-shadow .28s ease;
}
.review-card:hover{transform:translateY(-5px);box-shadow:0 24px 48px -26px rgba(50,40,120,.4)}
.review-quote{font-size:14.5px;color:var(--ink-2);line-height:1.8;flex:1 1 auto}
.review-user{display:flex;align-items:center;gap:12px;border-top:1px dashed var(--line);padding-top:14px}
.avatar{
  width:40px;height:40px;flex:0 0 40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:#fff;
}
.av1{background:linear-gradient(135deg,#5b3df5,#8a5bff)}
.av2{background:linear-gradient(135deg,#ff5f8f,#ff9a3d)}
.av3{background:linear-gradient(135deg,#12c8b1,#43c8a4)}
.av4{background:linear-gradient(135deg,#ffb020,#ff7a45)}
.av5{background:linear-gradient(135deg,#3a86ff,#4cc9f0)}
.av6{background:linear-gradient(135deg,#8e44ad,#c06bff)}
.review-user strong{display:block;font-size:14px}
.review-user span{font-size:12.5px;color:var(--ink-3)}
.review-stars{color:#ffb020;font-size:13px;letter-spacing:2px}

/* Token 比价 */
.token-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow);
}
.token-tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:22px}
.token-tags span{
  font-size:12.5px;padding:6px 12px;border-radius:8px;color:var(--ink-2);
  background:#f7f6ff;border:1px solid #ebe7ff;
}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.price-item{
  border:1px solid var(--line);border-radius:14px;padding:20px 18px;background:#fdfcff;
  transition:border-color .25s,transform .25s;
}
.price-item:hover{border-color:rgba(91,61,245,.36);transform:translateY(-4px)}
.price-item .pi-name{font-size:13px;color:var(--ink-3);margin-bottom:8px}
.price-item .pi-price{font-size:22px;font-weight:800;color:var(--brand);letter-spacing:-.4px}
.price-item .pi-price small{font-size:12px;font-weight:500;color:var(--ink-3);margin-left:4px}
.price-item .pi-note{font-size:12.5px;color:var(--ink-3);margin-top:6px}
.price-tip{margin-top:18px;font-size:13px;color:var(--ink-3);border-top:1px dashed var(--line);padding-top:15px}

/* 需求匹配 / 表单 */
.form-wrap{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:start;
}
.form-side{
  background:linear-gradient(160deg,rgba(91,61,245,.09),rgba(18,200,177,.08));
  border:1px solid rgba(91,61,245,.14);border-radius:var(--radius);padding:32px;
}
.form-side h2{font-size:26px;line-height:1.34;margin-bottom:12px}
.form-side p{font-size:14.5px;color:var(--ink-2);margin-bottom:20px}
.contact-list{display:grid;gap:11px;list-style:none}
.contact-list li{
  display:flex;gap:10px;font-size:13.8px;color:var(--ink-2);
  background:rgba(255,255,255,.8);border-radius:11px;padding:11px 14px;border:1px solid rgba(255,255,255,.9);
}
.contact-list b{font-weight:700;color:var(--ink);flex:0 0 auto}
.contact-list a{color:var(--brand);font-weight:600}
.qr-box{margin-top:18px;display:flex;align-items:center;gap:14px;background:#fff;border-radius:14px;padding:14px;border:1px solid var(--line)}
.qr-box img{width:92px;height:92px;object-fit:contain;border-radius:8px}
.qr-box div{font-size:13px;color:var(--ink-3);line-height:1.7}
.qr-box div strong{display:block;color:var(--ink);font-size:14px;margin-bottom:2px}
form.demand-form{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field label{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:14px;color:var(--ink);
  border:1.5px solid var(--line);border-radius:11px;padding:11px 14px;
  background:#fcfbff;transition:border-color .22s,box-shadow .22s;width:100%;
}
.field textarea{resize:vertical;min-height:110px}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(91,61,245,.12);background:#fff;
}
.form-tip{font-size:12.5px;color:var(--ink-3);margin-top:4px}
form.demand-form .btn{width:100%;margin-top:6px}

/* 帮助中心 / FAQ */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
.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:rgba(91,61,245,.34);box-shadow:0 16px 34px -26px rgba(50,40,120,.5)}
.faq-q{
  width:100%;text-align:left;font-family:inherit;font-size:15px;font-weight:600;color:var(--ink);
  background:none;border:none;cursor:pointer;padding:18px 52px 18px 20px;
  position:relative;line-height:1.6;
}
.faq-q::after{
  content:"";position:absolute;right:22px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);transition:transform .28s ease;
}
.faq-item.open .faq-q::after{transform:translateY(-30%) rotate(-135deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a p{font-size:14px;color:var(--ink-3);padding:0 20px 20px;line-height:1.85}

/* 文章 / 资讯 */
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.article-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;
  display:flex;flex-direction:column;gap:10px;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.article-card:hover{transform:translateY(-5px);border-color:rgba(91,61,245,.3);box-shadow:0 20px 44px -26px rgba(50,40,120,.42)}
.article-card .ac-kicker{font-size:12px;font-weight:700;color:var(--brand-2);letter-spacing:1px}
.article-card h3{font-size:16px;line-height:1.5}
.article-card p{font-size:13.5px;color:var(--ink-3);flex:1 1 auto}
.article-card .ac-link{font-size:13px;font-weight:700;color:var(--brand)}
.article-card .ac-link:hover{text-decoration:underline}
.article-more{text-align:center;margin-top:28px}

/* 加盟代理 */
.agent-band{
  display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;
  background:linear-gradient(130deg,#1f1a4d,#3a2482 52%,#ff5f8f 130%);
  border-radius:24px;padding:42px 38px;color:#fff;
  box-shadow:0 30px 66px -34px rgba(40,20,120,.85);
}
.agent-band h2{font-size:28px;line-height:1.32;margin-bottom:12px}
.agent-band p{font-size:14.5px;color:rgba(255,255,255,.84);margin-bottom:20px}
.agent-band .btn{background:#fff;color:#3a2482}
.agent-band .btn:hover{background:#f3efff}
.agent-points{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.agent-points span{
  font-size:13.5px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.2);
  border-radius:11px;padding:11px 14px;color:#fff;
}

/* 友情链接 */
.links-section{padding:50px 0 30px}
.links-box{
  background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:18px;padding:26px 28px;
}
.links-box h2{font-size:16px;margin-bottom:14px;color:var(--ink)}
.link-tags{display:flex;flex-wrap:wrap;gap:10px}
.link-tags a{
  font-size:13px;color:var(--ink-2);background:#fff;border:1px solid var(--line);
  border-radius:9px;padding:7px 14px;transition:color .2s,border-color .2s,transform .2s;
}
.link-tags a:hover{color:var(--brand);border-color:rgba(91,61,245,.36);transform:translateY(-2px)}

/* 页脚 */
.site-footer{
  background:#14102e;color:#cfcbe4;padding:44px 0 22px;margin-top:26px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px;align-items:start}
.footer-brand .ai-page-logo{max-height:36px;width:auto;margin-bottom:14px}
.footer-brand p{font-size:13.5px;color:#a9a3c9;line-height:1.8;max-width:300px}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:13px;letter-spacing:.5px}
.footer-col ul{list-style:none;display:grid;gap:9px}
.footer-col a{font-size:13.4px;color:#b3add1;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-col p{font-size:13.4px;color:#b3add1;line-height:1.9}
.footer-col p a{color:#ffd0dd}
.footer-bottom{
  margin-top:32px;border-top:1px solid rgba(255,255,255,.1);padding-top:18px;
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:12.8px;color:#928cb6;
}
.footer-bottom a{color:#c5c0e0}
.footer-bottom a:hover{color:#fff}

/* 浮动客服 & 返回顶部 */
.float-tools{position:fixed;right:18px;bottom:22px;z-index:950;display:flex;flex-direction:column;gap:10px}
.float-btn{
  width:50px;height:50px;border-radius:14px;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:#fff;font-family:inherit;
  background:linear-gradient(135deg,var(--brand),#8a5bff);
  box-shadow:0 14px 30px -14px rgba(60,40,160,.9);
  transition:transform .22s ease,box-shadow .22s ease;
  text-align:center;line-height:1.15;padding:0 4px;
}
.float-btn:hover{transform:translateY(-3px)}
.float-btn.kf{background:linear-gradient(135deg,#ff5f8f,#ff8a3d)}
.float-btn.top{background:#fff;color:var(--brand);border:1.5px solid rgba(91,61,245,.28);font-size:16px}
.kf-panel{
  position:fixed;right:18px;bottom:82px;z-index:951;width:238px;
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;
  box-shadow:0 26px 56px -24px rgba(40,30,110,.5);
  display:none;
}
.kf-panel.open{display:block;animation:popIn .24s ease}
@keyframes popIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.kf-panel img{width:100%;max-width:180px;margin:0 auto 10px;border-radius:10px;object-fit:contain}
.kf-panel p{font-size:12.6px;color:var(--ink-3);text-align:center;line-height:1.7}
.kf-panel p b{color:var(--ink)}

/* 动画 */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* 响应式 */
@media (max-width:1080px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .hero h1{font-size:36px}
  .cards-grid,.case-grid,.review-grid,.article-grid,.price-grid{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(3,1fr);row-gap:26px}
  .timeline::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .intro-grid,.two-col,.form-wrap,.rate-panel,.agent-band{grid-template-columns:1fr}
  .stats-strip{grid-template-columns:repeat(2,1fr);gap:20px}
  .hero h1{font-size:32px}
  .section{padding:58px 0}
  .section-head h2{font-size:26px}
  .nav-actions .btn-ghost{display:none}
}
@media (max-width:680px){
  .cards-grid,.case-grid,.review-grid,.article-grid,.price-grid,.net-grid,.agent-points{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr;gap:20px}
  .tl-step{display:flex;gap:16px;text-align:left;align-items:flex-start}
  .tl-dot{margin:0;flex:0 0 48px;width:48px;height:48px;font-size:14px}
  .tl-step h3{margin-bottom:3px}
  .hero{padding:52px 0 60px}
  .hero h1{font-size:28px}
  .hero-lead{font-size:15px}
  .form-row{grid-template-columns:1fr}
  .intro-panel,.panel,.scene-wrap,.token-panel,form.demand-form,.form-side{padding:24px 20px}
  .agent-band{padding:30px 22px}
  .agent-band h2{font-size:23px}
  .stats-strip{padding:26px 18px}
  .stat-item strong{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .btn-lg{padding:13px 24px;font-size:15px}
  .float-tools{right:12px;bottom:16px}
  .kf-panel{right:12px;bottom:76px;width:210px}
  .brand-text span{letter-spacing:1px}
  .nav-actions .btn-primary{padding:9px 15px;font-size:13px}
}