*,*::before,*::after{box-sizing:border-box;}
:root{
  --ink:#15171f;
  --ink-2:#3d4353;
  --muted:#5f6678;
  --paper:#fdf8f0;
  --paper-2:#fbf1e3;
  --line:#e7dfd1;
  --orange:#ff4d2e;
  --blue:#1f4dff;
  --yellow:#ffc400;
  --mint:#00b98b;
  --violet:#7b3fe4;
  --r:16px;
}
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","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    radial-gradient(900px 520px at 88% -6%, rgba(255,77,46,.15), transparent 62%),
    radial-gradient(820px 520px at -6% 14%, rgba(31,77,255,.13), transparent 60%),
    radial-gradient(760px 460px at 60% 82%, rgba(123,63,228,.10), transparent 62%),
    linear-gradient(180deg,#fdf8f0 0%,#fbf2e5 42%,#fdf8f0 100%);
  overflow-x:hidden;
}
img{max-width:100%;}
a{color:var(--blue);text-decoration:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.01em;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;}
[id]{scroll-margin-top:92px;}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(253,248,240,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:2px solid var(--ink);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:70px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);}
.brand .ai-page-logo{height:36px;width:auto;display:block;}
.brand-text{font-size:17px;font-weight:800;white-space:nowrap;letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0;}
.nav-links li{display:block;}
.nav-links a{display:block;padding:9px 13px;border-radius:10px;font-size:15px;font-weight:600;color:#2b2f3d;transition:background .2s ease,color .2s ease;}
.nav-links a:hover{background:rgba(31,77,255,.10);color:var(--blue);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{display:none;padding:8px 14px;border:2px solid var(--ink);border-radius:10px;background:#fff;color:var(--ink);font-size:14px;font-weight:800;cursor:pointer;transition:background .2s ease,transform .2s ease;}
.nav-toggle:hover{background:var(--yellow);}
.nav-toggle:active{transform:scale(.96);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:12px;border:2px solid var(--ink);
  font-size:16px;font-weight:800;line-height:1.2;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:5px 5px 0 var(--ink);}
.btn-primary:hover{transform:translate(-2px,-2px);box-shadow:8px 8px 0 var(--ink);}
.btn-primary:active{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--ink);}
.btn-ghost{background:#fff;color:var(--ink);box-shadow:5px 5px 0 rgba(21,23,31,.16);}
.btn-ghost:hover{transform:translate(-2px,-2px);box-shadow:8px 8px 0 rgba(21,23,31,.16);background:var(--yellow);}
.btn-ghost:active{transform:translate(2px,2px);box-shadow:2px 2px 0 rgba(21,23,31,.16);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px;box-shadow:4px 4px 0 var(--ink);}
.btn-sm:hover{box-shadow:6px 6px 0 var(--ink);}
.btn-blue{background:var(--blue);color:#fff;box-shadow:5px 5px 0 var(--ink);}
.btn-blue:hover{transform:translate(-2px,-2px);box-shadow:8px 8px 0 var(--ink);}
.btn-blue:active{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--ink);}

/* ===== 通用版块 ===== */
.section{padding:74px 0;position:relative;}
.section--alt{background-image:linear-gradient(180deg,rgba(255,196,0,.10),rgba(255,77,46,.06));}
.section--alt2{background-image:linear-gradient(180deg,rgba(31,77,255,.07),rgba(0,185,139,.06));}
.section-head{max-width:780px;margin:0 0 34px;}
.kicker{display:inline-block;padding:5px 14px;border-radius:999px;background:var(--blue);color:#fff;font-size:13px;font-weight:800;letter-spacing:.10em;margin-bottom:14px;}
.kicker--orange{background:var(--orange);}
.kicker--yellow{background:var(--yellow);color:var(--ink);}
.kicker--mint{background:var(--mint);color:#04231c;}
.kicker--violet{background:var(--violet);}
.section-title{font-size:clamp(23px,3.2vw,34px);line-height:1.32;margin-bottom:12px;}
.section-desc{color:var(--ink-2);font-size:16px;max-width:720px;}
.hl{background:linear-gradient(transparent 58%,rgba(255,196,0,.8) 58%);padding:0 .06em;color:var(--ink);}

/* ===== 卡片网格 ===== */
.grid-2,.grid-3,.grid-4{display:grid;gap:18px;}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}
.card{
  background:#fff;border:1px solid var(--line);border-top:4px solid var(--tc,var(--blue));
  border-radius:14px;padding:22px 20px;
  box-shadow:0 16px 32px -28px rgba(21,23,31,.9);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.card:hover{transform:translateY(-5px);box-shadow:0 24px 42px -26px rgba(21,23,31,.5);}
.card h3{font-size:18px;margin-bottom:8px;}
.card p{font-size:14.5px;color:var(--ink-2);line-height:1.7;}
.grid-2 > *:nth-child(6n+1),.grid-3 > *:nth-child(6n+1),.grid-4 > *:nth-child(6n+1){--tc:var(--orange);}
.grid-2 > *:nth-child(6n+2),.grid-3 > *:nth-child(6n+2),.grid-4 > *:nth-child(6n+2){--tc:var(--blue);}
.grid-2 > *:nth-child(6n+3),.grid-3 > *:nth-child(6n+3),.grid-4 > *:nth-child(6n+3){--tc:var(--mint);}
.grid-2 > *:nth-child(6n+4),.grid-3 > *:nth-child(6n+4),.grid-4 > *:nth-child(6n+4){--tc:var(--violet);}
.grid-2 > *:nth-child(6n+5),.grid-3 > *:nth-child(6n+5),.grid-4 > *:nth-child(6n+5){--tc:var(--yellow);}
.grid-2 > *:nth-child(6n+6),.grid-3 > *:nth-child(6n+6),.grid-4 > *:nth-child(6n+6){--tc:var(--orange);}

/* ===== 首屏 ===== */
.hero{position:relative;overflow:hidden;padding:60px 0 56px;}
.hero::before{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,77,46,.22),transparent 68%);
  top:-140px;right:-100px;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,77,255,.18),transparent 68%);
  bottom:-160px;left:-120px;pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:center;}
.eyebrow{display:inline-block;padding:6px 16px;border-radius:999px;background:#fff;border:2px solid var(--ink);font-size:13px;font-weight:800;letter-spacing:.06em;color:var(--ink);box-shadow:4px 4px 0 rgba(31,77,255,.5);}
.hero-title{font-size:clamp(30px,4.9vw,52px);line-height:1.2;margin:20px 0 18px;letter-spacing:.01em;}
.hero-lead{font-size:16.5px;color:var(--ink-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:24px 0 0;}
.hero-tags li{font-size:13px;font-weight:700;padding:6px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-2);}
.hero-art{position:relative;display:grid;place-items:center;min-height:380px;}
.art-frame{
  position:relative;z-index:3;width:min(100%,350px);background:#fff;
  border:2px solid var(--ink);border-radius:22px;padding:22px 20px;
  box-shadow:10px 10px 0 rgba(31,77,255,.20),0 30px 50px -34px rgba(21,23,31,.7);
  animation:floatY 7s ease-in-out infinite;
}
.art-frame-title{font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--blue);margin-bottom:14px;}
.art-models{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px;}
.art-models li{font-size:13px;font-weight:700;padding:6px 10px;border-radius:8px;background:var(--paper-2);border:1px solid var(--line);color:var(--ink);}
.art-chip{
  position:absolute;z-index:4;padding:8px 15px;border-radius:999px;border:2px solid var(--ink);
  font-size:13px;font-weight:800;color:var(--ink);box-shadow:4px 4px 0 var(--ink);
}
.chip-a{top:4%;left:2%;background:var(--yellow);animation:floatY 6s ease-in-out infinite;}
.chip-b{bottom:16%;right:0;background:var(--mint);color:#04231c;animation:floatY 8s ease-in-out infinite .8s;}
.chip-c{bottom:-2%;left:8%;background:var(--orange);color:#fff;animation:floatY 7.5s ease-in-out infinite .4s;}
@keyframes floatY{0%,100%{transform:translateY(0);}50%{transform:translateY(-10px);}}

/* ===== 指标条 ===== */
.metrics{padding:6px 0 10px;}
.metrics-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;}
.metrics-grid li{
  background:#fff;border:2px solid var(--ink);border-radius:14px;padding:18px 14px;text-align:center;
  box-shadow:5px 5px 0 rgba(21,23,31,.10);transition:transform .25s ease,box-shadow .25s ease;
}
.metrics-grid li:hover{transform:translateY(-4px);box-shadow:7px 10px 0 rgba(21,23,31,.14);}
.metrics-grid strong{display:block;font-size:clamp(23px,3.4vw,32px);line-height:1.15;color:var(--orange);}
.metrics-grid li:nth-child(2) strong{color:var(--blue);}
.metrics-grid li:nth-child(3) strong{color:var(--mint);}
.metrics-grid li:nth-child(4) strong{color:var(--violet);}
.metrics-grid span{display:block;margin-top:4px;font-size:13.5px;font-weight:600;color:var(--ink-2);}

/* ===== 关于我们 ===== */
.about-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:34px;align-items:start;}
.about-text p{color:var(--ink-2);margin-bottom:14px;font-size:15.5px;}
.about-text .btn{margin-top:10px;}
.about-points{display:grid;gap:12px;}
.point{
  background:#fff;border:1px solid var(--line);border-left:5px solid var(--tc,var(--blue));
  border-radius:12px;padding:14px 18px;transition:transform .25s ease,box-shadow .25s ease;
}
.point:hover{transform:translateX(4px);box-shadow:-6px 6px 0 rgba(21,23,31,.08);}
.point h3{font-size:16px;margin-bottom:4px;}
.point p{font-size:14px;color:var(--ink-2);}
.about-points .point:nth-child(6n+1){--tc:var(--orange);}
.about-points .point:nth-child(6n+2){--tc:var(--blue);}
.about-points .point:nth-child(6n+3){--tc:var(--mint);}
.about-points .point:nth-child(6n+4){--tc:var(--violet);}
.about-points .point:nth-child(6n+5){--tc:var(--yellow);}
.about-points .point:nth-child(6n+6){--tc:var(--orange);}

/* ===== 模型标签云 ===== */
.model-cloud{list-style:none;padding:0;margin:26px 0 0;display:flex;flex-wrap:wrap;gap:9px;}
.model-cloud li{
  font-size:13.5px;font-weight:700;padding:7px 14px;border-radius:9px;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
  transition:transform .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.model-cloud li:hover{transform:translateY(-3px);background:var(--blue);border-color:var(--blue);color:#fff;}

/* ===== 流程步骤 ===== */
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 16px;
  border-top:4px solid var(--tc,var(--blue));transition:transform .28s ease,box-shadow .28s ease;
}
.step:hover{transform:translateY(-5px);box-shadow:0 22px 38px -28px rgba(21,23,31,.7);}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:26px;padding:0 8px;border-radius:7px;background:var(--tc,var(--blue));
  color:#fff;font-size:13px;font-weight:800;margin-bottom:10px;
}
.step:nth-child(5n+1){--tc:var(--orange);}
.step:nth-child(5n+2){--tc:var(--blue);}
.step:nth-child(5n+3){--tc:var(--mint);}
.step:nth-child(5n+4){--tc:var(--violet);}
.step:nth-child(5n+5){--tc:var(--yellow);}
.step h3{font-size:16px;margin-bottom:6px;}
.step p{font-size:14px;color:var(--ink-2);}

/* ===== 案例 ===== */
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:transform .28s ease,box-shadow .28s ease;
}
.case-card:hover{transform:translateY(-5px);box-shadow:0 26px 44px -30px rgba(21,23,31,.65);}
.media-frame{margin:0;display:block;background:#fbf6ee;border-bottom:1px solid var(--line);padding:10px;}
.media-frame img{display:block;max-width:100%;height:auto;margin:0 auto;border-radius:8px;}
.case-body{padding:18px 20px 22px;}
.case-body h3{font-size:17px;margin-bottom:6px;}
.case-body p{font-size:14px;color:var(--ink-2);}

/* ===== 对比评测 ===== */
.review-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:24px;align-items:start;}
.score-card{
  background:#fff;border:2px solid var(--ink);border-radius:18px;padding:28px 24px;
  box-shadow:8px 8px 0 rgba(255,77,46,.28);
}
.score-label{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.1em;padding:4px 12px;border-radius:999px;background:var(--yellow);color:var(--ink);}
.score-num{font-size:56px;font-weight:800;line-height:1.1;margin:14px 0 4px;color:var(--orange);}
.score-num span{font-size:20px;color:var(--ink-2);font-weight:700;}
.stars{color:#ff9800;letter-spacing:.14em;font-size:19px;}
.score-card p{margin-top:12px;font-size:14.5px;color:var(--ink-2);}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;background:#fff;border:2px solid var(--ink);border-radius:16px;}
table{width:100%;border-collapse:collapse;min-width:660px;font-size:14.5px;}
thead th{background:var(--ink);color:#fff;font-weight:700;text-align:left;padding:14px 16px;}
tbody td{padding:13px 16px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top;}
tbody td:first-child{font-weight:700;color:var(--ink);}
tbody tr:nth-child(even){background:#fdfaf4;}
tbody tr:last-child td{border-bottom:none;}
td.best{color:#067a5c;font-weight:700;background:rgba(0,185,139,.08);}

/* ===== 价格卡片 ===== */
.price-card{background:#fff;border:2px solid var(--ink);border-radius:16px;padding:24px 22px;transition:transform .28s ease,box-shadow .28s ease;}
.price-card:hover{transform:translateY(-5px);box-shadow:8px 8px 0 rgba(31,77,255,.22);}
.price-card h3{font-size:19px;margin-bottom:6px;}
.price-card .price-tag{display:inline-block;margin:8px 0 14px;padding:5px 12px;border-radius:8px;font-size:13px;font-weight:800;background:var(--paper-2);color:var(--ink);border:1px solid var(--line);}
.price-list{list-style:none;padding:0;margin:0;display:grid;gap:8px;}
.price-list li{font-size:14px;color:var(--ink-2);padding-left:20px;position:relative;}
.price-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:3px;background:var(--tc,var(--blue));}
.price-card:nth-child(1){--tc:var(--orange);}
.price-card:nth-child(2){--tc:var(--blue);}
.price-card:nth-child(3){--tc:var(--mint);}
.note-line{margin-top:16px;font-size:13.5px;color:var(--muted);}

/* ===== 需求匹配与表单 ===== */
.match-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px;}
.match-tab{
  padding:9px 16px;border-radius:999px;border:2px solid var(--line);background:#fff;
  font-size:14px;font-weight:700;color:var(--ink-2);cursor:pointer;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.match-tab:hover{transform:translateY(-2px);border-color:var(--blue);color:var(--blue);}
.match-tab.is-active{background:var(--blue);border-color:var(--blue);color:#fff;}
.form-shell{background:#fff;border:2px solid var(--ink);border-radius:18px;padding:28px 24px;box-shadow:8px 8px 0 rgba(255,196,0,.42);}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.field{display:block;}
.field span{display:block;font-size:14px;font-weight:700;color:var(--ink);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;
  font-size:15px;font-family:inherit;color:var(--ink);background:#fdfbf7;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#9aa0ae;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(31,77,255,.14);
}
.field textarea{resize:vertical;min-height:120px;}
.field-full{grid-column:1 / -1;}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;}
.form-tip{font-size:13.5px;color:var(--muted);}

/* ===== 客户评价 ===== */
.review-card{
  margin:0;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 20px;
  border-top:4px solid var(--tc,var(--blue));transition:transform .28s ease,box-shadow .28s ease;
}
.review-card:hover{transform:translateY(-5px);box-shadow:0 24px 40px -30px rgba(21,23,31,.6);}
.review-card .stars{font-size:16px;margin-bottom:10px;}
.review-card blockquote{margin:0 0 14px;font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.review-card figcaption{display:flex;flex-direction:column;gap:2px;border-top:1px dashed var(--line);padding-top:12px;}
.review-card figcaption strong{font-size:15px;color:var(--ink);}
.review-card figcaption span{font-size:13px;color:var(--muted);}
.grid-3 > .review-card:nth-child(3n+1){--tc:var(--orange);}
.grid-3 > .review-card:nth-child(3n+2){--tc:var(--blue);}
.grid-3 > .review-card:nth-child(3n+3){--tc:var(--mint);}

/* ===== 标签云 / 链接 ===== */
.tag-cloud{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:10px;}
.tag-cloud li a{
  display:block;font-size:14px;font-weight:700;padding:9px 16px;border-radius:10px;
  background:#fff;border:1.5px solid var(--line);color:var(--ink-2);
  transition:transform .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.tag-cloud li a:hover{transform:translateY(-3px);background:var(--orange);border-color:var(--orange);color:#fff;}
.link-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
.link-list li a{
  display:flex;align-items:center;gap:10px;padding:13px 16px;border-radius:12px;background:#fff;
  border:1px solid var(--line);color:var(--ink);font-size:14.5px;font-weight:600;
  transition:transform .22s ease,border-color .22s ease,color .22s ease;
}
.link-list li a::before{content:"";width:8px;height:8px;border-radius:3px;background:var(--blue);flex-shrink:0;transition:background .22s ease;}
.link-list li a:hover{transform:translateX(4px);border-color:var(--blue);color:var(--blue);}
.article-slot{
  background:#fff;border:1px dashed var(--blue);border-radius:12px;padding:16px 18px;
  font-size:14px;color:var(--ink-2);margin-bottom:18px;
}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;}
.faq-item.open{border-color:var(--blue);box-shadow:0 16px 30px -26px rgba(31,77,255,.9);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;background:none;border:none;text-align:left;cursor:pointer;
  font-size:15.5px;font-weight:700;color:var(--ink);line-height:1.5;
}
.faq-q:hover{color:var(--blue);}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:0;top:8px;width:18px;height:2px;border-radius:2px;background:var(--blue);
  transition:transform .28s ease;
}
.faq-icon::after{transform:rotate(90deg);}
.faq-item.open .faq-icon::after{transform:rotate(0deg);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s ease;}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a p{
  overflow:hidden;min-height:0;margin:0;padding:0 20px;font-size:14.5px;color:var(--ink-2);
  transition:padding .32s ease;
}
.faq-item.open .faq-a p{padding-bottom:18px;}

/* ===== 加盟代理 ===== */
.join-box{
  background:#fff;border:2px solid var(--ink);border-radius:20px;padding:32px 28px;
  box-shadow:10px 10px 0 rgba(123,63,228,.22);
  display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;
}
.join-box h2{font-size:clamp(22px,3vw,30px);margin-bottom:12px;}
.join-box p{color:var(--ink-2);font-size:15.5px;}
.join-list{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
.join-list li{font-size:14.5px;color:var(--ink-2);padding-left:22px;position:relative;}
.join-list li::before{content:"";position:absolute;left:0;top:8px;width:10px;height:10px;border-radius:50%;background:var(--violet);}

/* ===== 联系 ===== */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:start;}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:12px;}
.contact-list li{
  background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;
  display:flex;flex-wrap:wrap;gap:8px;align-items:baseline;font-size:15px;color:var(--ink-2);
}
.contact-list strong{color:var(--ink);font-size:14.5px;}
.contact-list a{font-weight:700;color:var(--blue);word-break:break-all;}
.qr-card{background:#fff;border:2px solid var(--ink);border-radius:16px;padding:20px;text-align:center;box-shadow:6px 6px 0 rgba(0,185,139,.28);}
.qr-card img{display:block;max-width:220px;width:100%;height:auto;margin:0 auto 12px;border-radius:10px;}
.qr-card p{font-size:14px;color:var(--ink-2);}

/* ===== 页脚 ===== */
.site-footer{background:#15171f;color:#e8e3d9;padding:52px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.3fr .85fr 1fr;gap:32px;align-items:start;}
.footer-brand .ai-page-logo{height:36px;background:#fff;padding:6px 10px;border-radius:8px;display:block;margin-bottom:14px;}
.footer-brand p{font-size:14px;color:#b9b3a6;margin-bottom:8px;}
.footer-brand a{color:#ffc400;font-weight:700;}
.site-footer h3{font-size:15px;color:#ffffff;margin-bottom:14px;letter-spacing:.04em;}
.footer-nav ul,.footer-contact ul{list-style:none;padding:0;margin:0;display:grid;gap:9px;}
.footer-nav a,.footer-contact li{font-size:14px;color:#c6c0b3;}
.footer-nav a:hover,.friend-links a:hover{color:#ffc400;}
.friend-links{margin-top:32px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);}
.friend-links ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:8px 16px;}
.friend-links a{font-size:13.5px;color:#b9b3a6;transition:color .2s ease;}
.footer-bottom{
  margin-top:24px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:#948e82;text-align:center;
}

/* ===== 浮动客服 ===== */
.float-dock{position:fixed;right:18px;bottom:22px;z-index:90;display:flex;flex-direction:column;gap:10px;align-items:flex-end;}
.float-btn{
  padding:11px 16px;border-radius:999px;border:2px solid var(--ink);background:#fff;
  font-size:14px;font-weight:800;color:var(--ink);cursor:pointer;
  box-shadow:4px 4px 0 rgba(21,23,31,.85);transition:transform .2s ease,background .2s ease;
}
.float-btn:hover{transform:translate(-2px,-2px);background:var(--yellow);}
.float-btn:active{transform:translate(1px,1px);}
.kefu-panel{
  position:fixed;right:18px;bottom:120px;z-index:91;width:236px;background:#fff;
  border:2px solid var(--ink);border-radius:16px;padding:16px;text-align:center;
  box-shadow:8px 8px 0 rgba(31,77,255,.22);display:none;
}
.kefu-panel.is-open{display:block;animation:pop .25s ease;}
@keyframes pop{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}
.kefu-panel img{display:block;width:100%;height:auto;max-width:180px;margin:0 auto 10px;border-radius:10px;}
.kefu-panel p{font-size:13px;color:var(--ink-2);margin-bottom:6px;}
.kefu-panel strong{display:block;font-size:14px;color:var(--ink);}

/* ===== 滚动渐入 ===== */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.22,.8,.3,1);}
.reveal.in{opacity:1;transform:none;}

/* ===== 响应式 ===== */
@media (max-width:980px){
  .nav-links{
    position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#fdf8f0;border-bottom:2px solid var(--ink);padding:10px 20px 18px;
    box-shadow:0 26px 38px -28px rgba(21,23,31,.75);max-height:calc(100vh - 70px);overflow-y:auto;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:13px 8px;border-bottom:1px dashed rgba(21,23,31,.12);border-radius:0;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero-art{min-height:330px;order:2;}
  .about-grid{grid-template-columns:1fr;gap:26px;}
  .review-layout{grid-template-columns:1fr;}
  .join-box{grid-template-columns:1fr;gap:22px;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:720px){
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .case-grid{grid-template-columns:1fr;}
  .link-list{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .section{padding:52px 0;}
}
@media (max-width:640px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .nav-actions .btn-sm{display:none;}
  .hero{padding:44px 0 40px;}
  .form-shell{padding:22px 18px;}
  .join-box{padding:24px 20px;}
  .art-chip{font-size:12px;padding:6px 12px;}
  .chip-a{left:0;}
  .chip-b{right:0;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}