*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:#0f172a;
  background:#f6f8fd;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 10% -8%,rgba(37,99,235,.16),transparent 62%),
    radial-gradient(820px 480px at 92% 2%,rgba(219,39,119,.12),transparent 62%),
    radial-gradient(760px 460px at 50% 106%,rgba(14,165,183,.14),transparent 64%),
    #f6f8fd;
}
img{max-width:100%;height:auto;display:block}
a{color:#2563eb}
h1,h2,h3,h4{margin:0;line-height:1.35;color:#0b1220;letter-spacing:.3px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:60px 0;scroll-margin-top:76px}
.sec-head{max-width:780px;margin-bottom:30px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.6px;color:#4338ca;
  background:rgba(79,70,229,.08);border:1px solid rgba(79,70,229,.18);
  padding:5px 12px;border-radius:999px;
}
.eyebrow::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:linear-gradient(120deg,#2563eb,#db2777);
}
.sec-title{font-size:clamp(23px,3.1vw,33px);margin:14px 0 12px;color:#0b1220}
.sec-desc{font-size:15.5px;color:#4b5b73}
.sec-desc + .sec-desc{margin-top:10px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:12px;border:1px solid transparent;
  font-family:inherit;font-size:15px;font-weight:700;text-decoration:none;cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{
  background:linear-gradient(120deg,#2563eb,#7c3aed 52%,#db2777);
  color:#fff;box-shadow:0 12px 26px -12px rgba(79,70,229,.75);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -12px rgba(79,70,229,.85)}
.btn-ghost{
  background:#fff;color:#0b1220;border-color:rgba(15,23,42,.16);
  box-shadow:0 10px 22px -18px rgba(15,23,42,.75);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(79,70,229,.5);color:#3730a3}
.btn:active{transform:translateY(0)}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(15,23,42,.08);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;max-width:1180px;margin:0 auto;padding:11px 20px;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.ai-page-logo{width:38px;border-radius:9px}
.brand-text b{display:block;font-size:16px;font-weight:800;color:#0b1220;letter-spacing:1px}
.brand-text span{display:block;font-size:11px;color:#64748b;letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
.nav-links a{
  display:block;padding:7px 9px;border-radius:8px;
  font-size:13px;font-weight:600;color:#334155;text-decoration:none;white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.nav-links a:hover{color:#2563eb;background:rgba(37,99,235,.08)}
.nav-cta{padding:9px 18px;font-size:13.5px;border-radius:10px;white-space:nowrap}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:11px;
  border:1px solid rgba(15,23,42,.14);background:#fff;cursor:pointer;
  font-family:inherit;font-size:13px;font-weight:700;color:#0b1220;
}
.mobile-nav{
  display:none;border-top:1px solid rgba(15,23,42,.08);background:#fff;
  padding:10px 20px 16px;
}
.mobile-nav.open{display:block}
.mobile-nav a{
  display:block;padding:11px 6px;border-bottom:1px solid rgba(15,23,42,.06);
  font-size:14.5px;font-weight:600;color:#1f2a3d;text-decoration:none;
}
.mobile-nav a:last-child{border-bottom:0}
.mobile-nav .m-cta{
  margin-top:12px;display:flex;align-items:center;justify-content:center;
  padding:12px;border-radius:11px;color:#fff;font-weight:700;
  background:linear-gradient(120deg,#2563eb,#7c3aed 52%,#db2777);
}

/* 首屏 */
.hero{position:relative;overflow:hidden;padding:54px 0 62px;scroll-margin-top:76px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(620px 340px at 6% 0%,rgba(37,99,235,.20),transparent 66%),
    radial-gradient(560px 340px at 94% 8%,rgba(219,39,119,.16),transparent 66%),
    radial-gradient(640px 380px at 62% 104%,rgba(14,165,183,.16),transparent 66%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.75;
  background-image:
    linear-gradient(rgba(37,99,235,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(37,99,235,.055) 1px,transparent 1px);
  background-size:62px 62px;
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.12fr .88fr;gap:40px;align-items:start;
}
.hero-copy h1{font-size:clamp(27px,4.2vw,44px);line-height:1.28;margin:18px 0 16px;letter-spacing:.5px}
.hero-copy h1 em{
  font-style:normal;position:relative;display:inline-block;color:#1d4ed8;
}
.hero-copy h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:6px;border-radius:4px;
  background:linear-gradient(90deg,rgba(37,99,235,.55),rgba(219,39,119,.5));
}
.hero-lead{font-size:16px;color:#3d4d66;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-note{margin-top:16px;font-size:13px;color:#64748b;letter-spacing:.3px}
.hero-panel{
  background:linear-gradient(160deg,rgba(255,255,255,.96),rgba(255,255,255,.86));
  border:1px solid rgba(79,70,229,.18);
  border-radius:20px;padding:20px;
  box-shadow:0 30px 60px -34px rgba(37,99,235,.55);
}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat{
  position:relative;overflow:hidden;background:#fff;border:1px solid rgba(15,23,42,.08);
  border-radius:14px;padding:14px 14px 12px;
}
.stat::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:100%;
  background:linear-gradient(90deg,#2563eb,#7c3aed,#db2777);
}
.stat b{display:block;font-size:24px;line-height:1.2;color:#0b1220;letter-spacing:.5px}
.stat span{display:block;font-size:12.5px;color:#5b6b82;margin-top:4px}
.hero-models{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}
.hero-models span{
  font-size:12px;font-weight:600;color:#3f4c66;background:#fff;
  border:1px solid rgba(15,23,42,.09);border-radius:999px;padding:4px 10px;
}
.fade-up{animation:fadeUp .8s ease both}
.hero-copy > *:nth-child(1){animation-delay:.02s}
.hero-copy > *:nth-child(2){animation-delay:.12s}
.hero-copy > *:nth-child(3){animation-delay:.22s}
.hero-copy > *:nth-child(4){animation-delay:.32s}
.hero-copy > *:nth-child(5){animation-delay:.42s}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* 通用滚动渐入 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}
.reveal.in{opacity:1;transform:none}

/* 分栏 */
.split{display:grid;grid-template-columns:1.12fr .88fr;gap:38px;align-items:start}
.check-list{display:grid;gap:11px;margin-top:22px}
.check-list li{position:relative;padding-left:26px;font-size:14.5px;color:#3b4a61}
.check-list li::before{
  content:"";position:absolute;left:0;top:5px;width:15px;height:15px;border-radius:50%;
  background:linear-gradient(120deg,#2563eb,#db2777);
}
.check-list li::after{
  content:"";position:absolute;left:4.5px;top:9.5px;width:6px;height:6px;border-radius:50%;background:#fff;
}
.about-media{display:grid;gap:14px}
.about-media img{
  width:100%;border-radius:16px;border:1px solid rgba(15,23,42,.08);background:#fff;
  box-shadow:0 20px 44px -32px rgba(37,99,235,.6);
}

/* 卡片网格 */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;align-items:stretch}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;align-items:stretch}
.card{
  background:#fff;border:1px solid rgba(15,23,42,.08);border-radius:16px;padding:20px;
  box-shadow:0 16px 36px -30px rgba(37,99,235,.7);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(79,70,229,.32);
  box-shadow:0 24px 46px -28px rgba(37,99,235,.62);
}
.card h3{font-size:16.5px;margin-bottom:8px}
.card p{font-size:14px;color:#4b5b73}
.svc-tag{
  display:inline-block;font-size:12px;font-weight:700;color:#4338ca;
  background:rgba(79,70,229,.1);border-radius:999px;padding:3px 10px;margin-bottom:10px;
}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.tag{
  font-size:13px;font-weight:600;color:#37476a;background:#fff;
  border:1px solid rgba(15,23,42,.09);border-radius:999px;padding:5px 12px;
  transition:color .25s ease,border-color .25s ease,transform .25s ease;
}
.tag:hover{color:#2563eb;border-color:rgba(37,99,235,.45);transform:translateY(-2px)}

/* 媒体图 */
.media-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.media-box{
  margin:0;display:flex;align-items:center;justify-content:center;
  aspect-ratio:4/3;padding:10px;background:#fff;
  border:1px solid rgba(15,23,42,.08);border-radius:16px;
  box-shadow:0 16px 36px -30px rgba(37,99,235,.7);
  transition:transform .3s ease,box-shadow .3s ease;
}
.media-box:hover{transform:translateY(-4px);box-shadow:0 22px 44px -28px rgba(37,99,235,.6)}
.media-box img{max-width:100%;max-height:100%;object-fit:contain;border-radius:10px}

/* 流程步骤 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:26px}
.steps li{
  background:#fff;border:1px solid rgba(15,23,42,.08);border-radius:15px;padding:16px;
  box-shadow:0 16px 36px -30px rgba(37,99,235,.7);
  transition:transform .3s ease,box-shadow .3s ease;
}
.steps li:hover{transform:translateY(-4px);box-shadow:0 22px 44px -28px rgba(37,99,235,.6)}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;margin-bottom:10px;
  background:linear-gradient(135deg,#2563eb,#7c3aed);
  color:#fff;font-size:13px;font-weight:800;
}
.steps h3{font-size:15px;margin-bottom:6px}
.steps p{font-size:13.5px;color:#4b5b73}

/* 时间线 */
.timeline{position:relative;margin-top:26px;padding-left:28px;max-width:860px}
.timeline::before{
  content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,#2563eb,#7c3aed,#db2777);
  border-radius:2px;
}
.timeline li{position:relative;padding-bottom:20px}
.timeline li:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-28px;top:6px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid #4f46e5;box-shadow:0 0 0 4px rgba(79,70,229,.12);
}
.timeline h3{font-size:16px;margin-bottom:5px}
.timeline p{font-size:14px;color:#4b5b73}

/* 案例 */
.case-card{position:relative;overflow:hidden;background:#fff;border:1px solid rgba(15,23,42,.08);
  border-radius:16px;padding:22px;box-shadow:0 16px 36px -30px rgba(37,99,235,.7);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}
.case-card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:100%;
  background:linear-gradient(90deg,#2563eb,#7c3aed,#db2777);
}
.case-card:hover{transform:translateY(-4px);border-color:rgba(79,70,229,.3);box-shadow:0 24px 46px -28px rgba(37,99,235,.6)}
.case-tag{display:inline-block;font-size:12px;font-weight:700;color:#9d174d;background:rgba(219,39,119,.1);border-radius:999px;padding:3px 10px;margin-bottom:10px}
.case-card h3{font-size:16.5px;margin-bottom:8px}
.case-card p{font-size:14px;color:#4b5b73}
.case-meta{margin-top:12px;font-size:13px;color:#64748b;border-top:1px dashed rgba(15,23,42,.12);padding-top:10px}

/* 对比评测 */
.review-layout{display:grid;grid-template-columns:.88fr 1.6fr;gap:22px;align-items:start;margin-top:26px}
.score-card{
  background:linear-gradient(165deg,#ffffff,#f3f6ff);
  border:1px solid rgba(79,70,229,.2);border-radius:18px;padding:24px;
  box-shadow:0 26px 52px -34px rgba(37,99,235,.6);
}
.score-num{font-size:52px;font-weight:800;color:#0b1220;line-height:1.1;margin:14px 0 6px;letter-spacing:-1px}
.score-num span{font-size:16px;font-weight:600;color:#64748b;margin-left:6px;letter-spacing:0}
.score-stars{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.score-stars .stars{color:#f59e0b;font-size:18px;letter-spacing:2px}
.score-stars b{font-size:14px;color:#b45309}
.score-card p{font-size:14px;color:#4b5b73;margin:12px 0 0}
.score-points{display:grid;gap:7px;margin:14px 0 20px}
.score-points li{position:relative;padding-left:20px;font-size:13.5px;color:#3b4a61}
.score-points li::before{
  content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:50%;
  background:linear-gradient(120deg,#2563eb,#db2777);
}
.table-wrap{
  overflow-x:auto;background:#fff;border:1px solid rgba(15,23,42,.08);border-radius:16px;
  box-shadow:0 20px 44px -34px rgba(37,99,235,.7);
}
table{width:100%;border-collapse:collapse;min-width:660px;font-size:14px}
th,td{padding:13px 16px;text-align:left;vertical-align:top;border-bottom:1px solid rgba(15,23,42,.06)}
thead th{
  background:linear-gradient(120deg,rgba(37,99,235,.1),rgba(219,39,119,.08));
  color:#0b1220;font-weight:800;white-space:nowrap;
}
tbody th{background:rgba(37,99,235,.035);font-weight:700;color:#1f2a3d;white-space:nowrap}
tbody tr:hover{background:rgba(37,99,235,.045)}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
.table-note{font-size:13px;color:#64748b;margin-top:12px}

/* 评论 */
.comment{
  display:flex;flex-direction:column;gap:14px;
  background:#fff;border:1px solid rgba(15,23,42,.08);border-radius:16px;padding:20px;
  box-shadow:0 16px 36px -30px rgba(37,99,235,.7);
  transition:transform .3s ease,box-shadow .3s ease;
}
.comment:hover{transform:translateY(-4px);box-shadow:0 24px 46px -28px rgba(37,99,235,.6)}
.comment-text{font-size:14.5px;color:#334155}
.comment-user{display:flex;align-items:center;gap:10px;margin-top:auto}
.avatar{
  width:38px;height:38px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#2563eb,#db2777);color:#fff;font-weight:700;font-size:15px;
}
.comment-user b{display:block;font-size:14px;color:#0b1220}
.comment-user .role{display:block;font-size:12.5px;color:#64748b}

/* 表单 */
.match-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:26px;align-items:start;margin-top:26px}
.match-side .sec-desc{font-size:14.5px}
.need-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.match-note{margin-top:18px;font-size:13.5px;color:#64748b}
.match-note a{font-weight:700}
.match-form{
  background:#fff;border:1px solid rgba(15,23,42,.08);border-radius:18px;padding:24px;
  box-shadow:0 26px 54px -36px rgba(37,99,235,.65);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;font-weight:700;color:#334155}
.field input,.field select,.field textarea{
  width:100%;padding:11px 13px;border-radius:10px;
  border:1px solid rgba(15,23,42,.15);background:#fff;
  font-family:inherit;font-size:14.5px;color:#0b1220;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#94a3b8}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:#4f46e5;box-shadow:0 0 0 3px rgba(79,70,229,.15);
}
.field textarea{resize:vertical;min-height:104px}
.form-actions{grid-column:1/-1;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.form-tip{font-size:13px;color:#64748b}

/* FAQ */
.faq-list{margin-top:26px;max-width:920px}
.faq-item{
  background:#fff;border:1px solid rgba(15,23,42,.08);border-radius:14px;margin-bottom:12px;
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item[open]{border-color:rgba(79,70,229,.32);box-shadow:0 20px 40px -32px rgba(37,99,235,.7)}
.faq-item summary{
  position:relative;cursor:pointer;list-style:none;
  padding:15px 48px 15px 18px;font-size:15px;font-weight:700;color:#0b1220;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:700;color:#2563eb;transition:transform .3s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item p{padding:0 18px 16px;font-size:14px;color:#4b5b73}

/* 文章 */
.article-columns{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:26px}
.article-col{
  background:#fff;border:1px solid rgba(15,23,42,.08);border-radius:16px;padding:22px;
  box-shadow:0 16px 36px -30px rgba(37,99,235,.7);
}
.article-col h3{font-size:16px;margin-bottom:12px;color:#1f2a3d}
.article-list{display:grid;gap:2px}
.article-list a{
  display:flex;align-items:flex-start;gap:8px;justify-content:space-between;
  padding:10px 4px;border-bottom:1px dashed rgba(15,23,42,.1);
  font-size:14px;color:#334155;text-decoration:none;
  transition:color .22s ease,padding-left .22s ease;
}
.article-list li:last-child a{border-bottom:0}
.article-list a:hover{color:#2563eb;padding-left:10px}
.article-list a::after{content:"→";color:#94a3b8;flex:0 0 auto;font-size:13px}

/* 联系 */
.contact-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:26px;align-items:start;margin-top:26px}
.contact-list{display:grid;gap:10px;margin-top:20px}
.contact-list li{
  display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;
  font-size:14.5px;color:#334155;padding-bottom:10px;
  border-bottom:1px dashed rgba(15,23,42,.1);
}
.contact-list li:last-child{border-bottom:0;padding-bottom:0}
.contact-list b{flex:0 0 96px;font-size:13.5px;color:#64748b;font-weight:700}
.contact-list a{font-weight:600;text-decoration:none}
.contact-list a:hover{text-decoration:underline}
.contact-qr{
  background:#fff;border:1px solid rgba(15,23,42,.08);border-radius:16px;padding:18px;
  text-align:center;box-shadow:0 16px 36px -30px rgba(37,99,235,.7);
}
.contact-qr img{
  width:100%;max-width:210px;margin:0 auto 10px;border-radius:12px;
  border:1px solid rgba(15,23,42,.08);
}
.contact-qr p{font-size:13.5px;color:#4b5b73}
.contact-actions{margin-top:22px;display:flex;flex-wrap:wrap;gap:12px}

/* 加盟 */
.join-wrap{
  display:grid;grid-template-columns:1fr 1.1fr;gap:28px;align-items:center;
  background:linear-gradient(150deg,rgba(37,99,235,.09),rgba(219,39,119,.07) 55%,rgba(14,165,183,.1));
  border:1px solid rgba(79,70,229,.2);border-radius:20px;padding:30px;
}
.join-wrap .sec-desc{font-size:14.5px}
.join-cards{display:grid;gap:12px}
.join-cards .card{padding:16px 18px}
.join-cards .card h3{font-size:15px}
.join-cards .card p{font-size:13.5px}
.join-actions{margin-top:20px}

/* 浮动客服 */
.fab-stack{position:fixed;right:18px;bottom:18px;z-index:70;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.fab{
  width:48px;height:48px;border-radius:50%;border:0;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:inherit;font-size:13px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,#2563eb,#db2777);
  box-shadow:0 14px 28px -12px rgba(37,99,235,.85);
  transition:transform .25s ease,box-shadow .25s ease;
}
.fab:hover{transform:translateY(-3px);box-shadow:0 18px 32px -12px rgba(37,99,235,.9)}
.to-top{opacity:0;visibility:hidden;transform:translateY(8px)}
.to-top.show{opacity:1;visibility:visible;transform:none}
.cs-panel{
  display:none;width:230px;background:#fff;border:1px solid rgba(15,23,42,.1);
  border-radius:16px;padding:14px;box-shadow:0 26px 48px -26px rgba(15,23,42,.55);
}
.cs-panel.open{display:block;animation:fadeUp .3s ease both}
.cs-panel b{display:block;font-size:14px;color:#0b1220;margin-bottom:8px}
.cs-panel img{width:150px;margin:0 auto 8px;border-radius:10px;border:1px solid rgba(15,23,42,.08)}
.cs-panel p{font-size:12.5px;color:#4b5b73;line-height:1.7}
.cs-panel .cs-q{word-break:break-all}

/* 页脚 */
.site-footer{
  background:#0b1220;color:#c7d2e3;padding:42px 0 20px;margin-top:8px;
}
.site-footer a{color:#dbe4f3;text-decoration:none;transition:color .22s ease}
.site-footer a:hover{color:#7dd3fc}
.footer-top{display:grid;grid-template-columns:1.5fr .8fr 1fr;gap:28px;align-items:start}
.footer-brand b{display:block;font-size:16px;color:#fff;letter-spacing:.5px;margin-bottom:10px}
.footer-brand p{font-size:13.5px;color:#a7b6cf;max-width:420px}
.footer-col b{display:block;font-size:14px;color:#fff;margin-bottom:10px}
.footer-col ul{display:grid;gap:7px}
.footer-col li{font-size:13.5px;color:#a7b6cf}
.footer-friend{margin-top:26px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1)}
.footer-friend b{display:block;font-size:14px;color:#fff;margin-bottom:12px}
.friend-links{display:flex;flex-wrap:wrap;gap:8px}
.friend-links a{
  display:inline-block;font-size:12.5px;padding:5px 12px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04);color:#dbe4f3;
}
.friend-links a:hover{border-color:rgba(125,211,252,.6);color:#7dd3fc;background:rgba(125,211,252,.1)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:22px;padding-top:14px;border-top:1px solid rgba(255,255,255,.1);
  font-size:12.5px;color:#8fa0bd;
}

/* 响应式 */
@media (max-width:1100px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex}
}
@media (max-width:980px){
  .hero-inner,.split,.review-layout,.match-layout,.contact-layout,.join-wrap,.article-columns{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .media-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:660px){
  .section{padding:46px 0}
  .hero{padding:38px 0 46px}
  .grid-2,.grid-3,.grid-4,.media-grid,.steps,.form-grid,.footer-top{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .hero-actions .btn{width:100%}
  .match-form{padding:18px}
  .join-wrap{padding:22px}
  .cs-panel{width:200px}
  .contact-list b{flex:0 0 84px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

.reveal{opacity:1;transform:none}