/* 麦盟艺行官网 · 蓝白 SaaS 风格，版式参考 yingdao.com/education */
@font-face{font-family:"MM Sans";src:url(fonts/mm-sans-500.woff2) format("woff2");font-weight:400 500;font-display:swap}
@font-face{font-family:"MM Sans";src:url(fonts/mm-sans-700.woff2) format("woff2");font-weight:600 900;font-display:swap}
:root{
  --blue:#1f5bff;--blue-d:#0b3fd6;--cyan:#16b8ff;--sky:#eaf1ff;--soft:#f5f8fe;--line:#e3e9f5;
  --ink:#0f1b33;--ink2:#56627c;--mute:#8b95ab;--dark:#0c1630;--w:1200px;--r:18px;
  --zh:"MM Sans","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:#fff;color:var(--ink);font-family:var(--zh);font-weight:500;font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;overflow-wrap:anywhere}
a{color:inherit;text-decoration:none}
strong,b{font-weight:700}
.wrap{max-width:var(--w);margin:0 auto;padding:0 24px}

/* header */
.hd{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:border-color .3s,box-shadow .3s}
.hd.small{border-color:var(--line);box-shadow:0 6px 20px rgba(15,27,51,.05)}
.hd .wrap{display:flex;align-items:center;height:70px;gap:40px;max-width:1360px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:.02em;white-space:nowrap}
.logo i{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--blue),var(--cyan));display:grid;place-items:center;color:#fff;font-style:normal;font-size:16px}
.nav{display:flex;gap:28px;font-size:15px;flex:1;justify-content:center}
.nav a{color:var(--ink2);position:relative;padding:4px 0}
.nav a:hover,.nav a.on{color:var(--blue)}
.nav a.on::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--blue)}
.hd .side{display:flex;gap:12px;align-items:center;white-space:nowrap}
.hd .side .ghost{font-size:14px;color:var(--ink2)}
.nav .mob{display:none}
.menu-btn{display:none;background:none;border:0;font-size:26px;cursor:pointer;margin-left:auto}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:999px;background:var(--blue);color:#fff;font-weight:700;font-size:15px;transition:background .25s,transform .25s,box-shadow .25s;box-shadow:0 8px 20px rgba(31,91,255,.25)}
.btn:hover{background:var(--blue-d);transform:translateY(-2px)}
.btn.sm{padding:8px 18px;font-size:14px;box-shadow:none}
.btn.line{background:#fff;color:var(--blue);border:1px solid #c9d7ff;box-shadow:none}
.btn.line:hover{background:var(--sky)}
.btn .ar{transition:transform .25s}
.btn:hover .ar{transform:translate(3px,-3px)}

/* hero */
.hero{text-align:center;padding:96px 0 40px;background:radial-gradient(ellipse 60% 50% at 50% 0,#e6eeff 0,rgba(255,255,255,0) 70%)}
.hero .kick{display:inline-block;font-size:14px;color:var(--blue);background:var(--sky);border-radius:999px;padding:4px 16px;margin-bottom:22px}
.hero .t1{font-size:clamp(24px,3vw,38px);font-weight:700;line-height:1.4}
.hero h1{font-size:clamp(32px,5vw,60px);font-weight:700;line-height:1.3;margin-top:6px;letter-spacing:.01em}
.hl{position:relative;white-space:nowrap}
.hl::after{content:"";position:absolute;left:2%;right:2%;bottom:-.08em;height:.22em;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 12' preserveAspectRatio='none'%3E%3Cpath d='M2 9C50 3 120 2 198 6' stroke='%2316b8ff' stroke-width='5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat center/100% 100%;transform-origin:left;transition:transform 1s .5s}
.js .hl::after{transform:scaleX(0)}
.js .in .hl::after,.js .hl.in::after{transform:scaleX(1)}
.hero p.sub{color:var(--ink2);max-width:720px;margin:26px auto 36px;font-size:17px}
.hero .btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero .shot{margin:64px auto 0;max-width:1060px;border-radius:22px;overflow:hidden;box-shadow:0 30px 80px rgba(15,27,51,.12);border:1px solid var(--line)}

/* page head */
.phead{padding:80px 0 56px;text-align:center;background:radial-gradient(ellipse 60% 70% at 50% 0,#e6eeff 0,rgba(255,255,255,0) 70%)}
.phead .kick{display:inline-block;font-size:14px;color:var(--blue);background:var(--sky);border-radius:999px;padding:4px 16px;margin-bottom:18px}
.phead h1{font-size:clamp(28px,3.8vw,44px);font-weight:700;line-height:1.35}
.phead p{color:var(--ink2);max-width:760px;margin:16px auto 0;font-size:17px}
.crumb{font-size:13px;color:var(--mute);padding:12px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.crumb a:hover{color:var(--blue)}

/* sections */
.sec{padding:96px 0}
.sec.soft{background:var(--soft)}
.sec.dark{background:var(--dark);color:#fff}
.sec.dark .ink2{color:#aab4cc}
.st{text-align:center;margin-bottom:52px}
.st h2{font-size:clamp(26px,3.2vw,40px);font-weight:700;line-height:1.4}
.st p{color:var(--ink2);max-width:760px;margin:14px auto 0}
.sec.dark .st p{color:#aab4cc}
h3{font-size:19px;font-weight:700;line-height:1.5;margin-bottom:8px}
.ink2{color:var(--ink2)}
.mute{color:var(--mute)}

/* stats */
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;padding:44px 20px;border-radius:var(--r);background-color:#fff;background-image:radial-gradient(#c9d3e8 1px,transparent 1px);background-size:14px 14px;text-align:center}
.stats .v{font-size:clamp(30px,3.4vw,46px);font-weight:700;line-height:1.2;display:inline-block;padding:0 6px;background:linear-gradient(transparent 58%,#cfe0ff 58%,#cfe0ff 90%,transparent 90%)}
.stats .v small{font-size:.5em;margin-left:2px}
.stats .k{color:var(--ink2);font-size:15px;margin-top:6px}

/* grids & cards */
.g2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.g3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.g4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.feat{background:var(--soft);border-radius:var(--r);padding:28px 28px 26px;display:flex;gap:18px;align-items:flex-start;transition:transform .3s,box-shadow .3s,background .3s}
.sec.soft .feat{background:#fff}
.feat:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(31,91,255,.10);background:#fff}
.feat .ic{flex:0 0 48px;height:48px;border-radius:12px;background:var(--sky);display:grid;place-items:center;color:var(--blue)}
.feat .ic svg{width:26px;height:26px}
.feat p{color:var(--ink2);font-size:15px}
.feat.col{flex-direction:column}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;transition:transform .3s,box-shadow .3s}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(15,27,51,.08)}
.card p{color:var(--ink2);font-size:15px}
.tag{display:inline-block;font-size:13px;color:var(--blue);background:var(--sky);border-radius:6px;padding:2px 10px;margin-bottom:12px}
.more{display:inline-flex;gap:6px;margin-top:14px;font-size:14px;color:var(--blue);font-weight:700}

/* 定位三卡 */
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.trio .card{text-align:center;padding:40px 28px}
.trio .big{font-size:30px;font-weight:700;color:var(--blue);margin-bottom:6px}

/* alt rows (左图右文) */
.row{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);background:#fff;border-radius:22px;overflow:hidden;margin-bottom:24px;border:1px solid var(--line)}
.row.rev{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr)}
.row.rev .pic{order:2}
.row .txt{padding:44px 44px;display:flex;flex-direction:column;justify-content:center}
.row h3{font-size:26px;margin-bottom:16px}
.row ul{list-style:none;color:var(--ink2);font-size:15px}
.row ul li{padding-left:16px;position:relative;margin-bottom:8px}
.row ul li::before{content:"";position:absolute;left:0;top:.75em;width:6px;height:6px;border-radius:50%;background:var(--blue)}
.row .pic .ph{height:100%;min-height:300px;border-radius:0}

/* 框架图：四维九模块 */
.dims{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.dim{border-radius:var(--r);padding:26px 22px;background:#fff;border:1px solid var(--line);position:relative;overflow:hidden}
.dim::before{content:"";position:absolute;left:0;top:0;right:0;height:4px;background:linear-gradient(90deg,var(--blue),var(--cyan))}
.dim .n{font-size:13px;color:var(--mute)}
.dim h3{font-size:22px;margin:4px 0 12px}
.dim ul{list-style:none;font-size:14px;color:var(--ink2)}
.dim ul li{background:var(--soft);border-radius:8px;padding:6px 10px;margin-bottom:8px}
.dimbar{display:flex;justify-content:center;gap:40px;margin-top:28px;flex-wrap:wrap;color:var(--ink2)}
.dimbar b{color:var(--blue);font-size:28px;margin-right:4px}

/* 指标对比 */
table.t{width:100%;border-collapse:separate;border-spacing:0;font-size:15px;border:1px solid var(--line);border-radius:14px;overflow:hidden;margin:6px 0 24px;background:#fff}
.t th,.t td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
.t tr:last-child td,.t tr:last-child th{border-bottom:0}
.t thead th{background:var(--sky);color:var(--ink);font-weight:700}
.t td.hi{color:var(--blue);font-weight:700}
.bars{display:grid;gap:18px}
.bar .lb{display:flex;justify-content:space-between;font-size:15px;margin-bottom:6px}
.bar .lb b{color:var(--blue)}
.bar .tr{height:10px;border-radius:99px;background:var(--sky);position:relative;overflow:hidden}
.bar .tr i{position:absolute;left:0;top:0;bottom:0;border-radius:99px;background:linear-gradient(90deg,var(--blue),var(--cyan));width:var(--w);transition:width 1.4s cubic-bezier(.2,.7,.2,1)}
.bar .tr s{position:absolute;left:0;top:0;bottom:0;border-radius:99px;background:#c3cbdb;width:var(--g);opacity:.9}
.js .bar .tr i{width:0}
.js .in .bar .tr i,.js .bar.in .tr i{width:var(--w)}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(var(--n,4),minmax(0,1fr));gap:0;counter-reset:f;position:relative}
.flow>div{padding:0 18px;text-align:center;position:relative}
.flow>div::before{counter-increment:f;content:counter(f);display:grid;place-items:center;width:46px;height:46px;margin:0 auto 16px;border-radius:50%;background:var(--blue);color:#fff;font-weight:700;font-size:18px;position:relative;z-index:1;box-shadow:0 0 0 8px var(--sky)}
.flow>div::after{content:"";position:absolute;top:23px;left:50%;width:100%;height:2px;background:repeating-linear-gradient(90deg,#b9c9f5 0 6px,transparent 6px 12px)}
.flow>div:last-child::after{display:none}
.flow h3{font-size:17px}
.flow p{font-size:14px;color:var(--ink2)}

/* 案例 */
.case .nums{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}
.case .nums div{background:var(--soft);border-radius:12px;padding:12px 10px;text-align:center}
.case .nums b{display:block;font-size:20px;color:var(--blue);line-height:1.3;white-space:nowrap}
.case .nums span{font-size:12px;color:var(--ink2)}

/* logo wall */
.logos{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.logos .ph{aspect-ratio:3/1;border-radius:12px}

/* prose */
.prose{max-width:860px;margin:0 auto}
.prose p{margin-bottom:18px;color:var(--ink2)}
.prose h2{font-size:26px;margin:56px 0 18px;line-height:1.45}
.prose h2:first-child{margin-top:0}
.prose h3{margin:28px 0 10px}
.prose ul,.prose ol{margin:0 0 18px 1.4em;color:var(--ink2)}
.prose li{margin-bottom:8px}
.prose p a,.prose li a,.prose td a{color:var(--blue);border-bottom:1px solid #b9c9f5}
.meta{font-size:14px;color:var(--mute);margin-bottom:28px}
.note{background:var(--soft);border-left:4px solid var(--blue);border-radius:10px;padding:16px 20px;color:var(--ink2);margin:20px 0}

/* placeholder */
.ph{position:relative;background:linear-gradient(135deg,#eef3ff,#f7f9ff);border:1px dashed #c6d3f2;border-radius:var(--r);color:#8a9ac0;font-size:13px;display:flex;align-items:center;justify-content:center;text-align:center;padding:14px;line-height:1.6}
.ph.r169{aspect-ratio:16/9}.ph.r43{aspect-ratio:4/3}.ph.r21{aspect-ratio:21/9}
.hero .shot .ph{border:0;border-radius:0}
.todo{display:inline-block;border:1px dashed #f0b54a;color:#a86a00;background:#fff8ea;font-size:13px;padding:0 8px;border-radius:4px;line-height:1.9}

/* faq */
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 24px;margin-bottom:12px;transition:box-shadow .3s}
.faq details[open]{box-shadow:0 10px 28px rgba(15,27,51,.06)}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary h3{margin:0;font-size:17px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:0 0 10px;height:10px;border-right:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(45deg);transition:transform .3s;margin-top:-4px}
.faq details[open] summary::after{transform:rotate(225deg);margin-top:4px}
.faq .a{color:var(--ink2);margin-top:12px;font-size:15px}

/* contact band */
.contact{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;background:linear-gradient(120deg,var(--blue),#3a7bff 60%,var(--cyan));color:#fff;border-radius:24px;padding:48px 56px}
.contact h2{font-size:30px;line-height:1.4}
.contact p{color:#dfe8ff;margin-top:8px}
.contact .btn{background:#fff;color:var(--blue);box-shadow:none}
.contact .qr{min-width:220px;border-radius:14px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);display:flex;flex-direction:column;gap:4px;font-size:14px;padding:18px 22px}
.contact .qr b{font-size:20px;letter-spacing:.12em}

/* footer */
.ft{background:var(--dark);color:#a9b3c9;font-size:14px;padding:64px 0 28px}
.ft .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1.2fr;gap:32px}
.ft b{color:#fff;display:block;margin-bottom:14px}
.ft p{margin-bottom:8px}
.ft a:hover{color:#fff}
.ft .base{border-top:1px solid #1e2a48;margin-top:44px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px}
.ft .todo{background:transparent;color:#8090b0;border-color:#3a4870}

/* 动画：只有 JS 在时才隐藏 */
.js [data-anim]{opacity:0;transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.2,1)}
.js [data-anim="up"]{transform:translateY(32px)}
.js [data-anim="zoom"]{transform:scale(.95)}
.js [data-anim].in{opacity:1;transform:none}
/* v2 20261028：文字 Logo、报告切换、六大场景、荣誉墙 */
.logo{flex-direction:column;align-items:stretch;gap:2px;line-height:1.15}
/* 1030 客户：两行字左右对齐。两行都两端对齐、不加字距，宽度由「麦盟艺行」决定 */
.logo b,.logo small{display:block;text-align:justify;text-align-last:justify;letter-spacing:0}
.logo b{font-size:24px;color:var(--ink)}
.logo small{font-size:11.5px;font-weight:500;color:var(--blue)}
img{max-width:100%;height:auto;display:block}
.hero .shot img{width:100%}
figure{margin:24px 0}
figure img{border-radius:14px;border:1px solid var(--line);width:100%}
figcaption{font-size:13px;color:var(--mute);margin-top:8px}
.rtabs{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:0 20px 60px rgba(15,27,51,.06)}
.rtabs .tl{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.rtabs .tl button{border:1px solid var(--line);background:var(--soft);color:var(--ink2);border-radius:99px;padding:8px 18px;font:inherit;font-size:14px;cursor:pointer;transition:all .25s}
.rtabs .tl button.on,.rtabs .tl button:hover{background:var(--blue);border-color:var(--blue);color:#fff}
.rtabs .pane{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:28px;align-items:center}
.js .rtabs .pane{display:none}
.js .rtabs .pane.on{display:grid}
.rtabs .shotbox{border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.rtabs .cap h3{font-size:22px;margin-bottom:12px}
.rtabs .cap p{color:var(--ink2);margin-bottom:10px}
.rtabs .cap b{color:var(--ink)}
.rtabs .pane+.pane{margin-top:24px}
.js .rtabs .pane+.pane{margin-top:0}
.scenes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.scene{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .3s,box-shadow .3s}
.scene:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(15,27,51,.1)}
.scene .pic{position:relative;aspect-ratio:16/9;overflow:hidden}
.scene .pic img{width:100%;height:100%;object-fit:cover}
.scene .pic i{position:absolute;left:14px;top:14px;width:42px;height:42px;border-radius:50%;background:var(--blue);color:#fff;font-style:normal;font-weight:700;font-size:20px;display:grid;place-items:center}
.scene .txt{padding:18px 20px 22px}
.scene h3{font-size:18px;margin-bottom:4px}
.scene p{color:var(--ink2);font-size:14px}
.row .pic img{width:100%;height:100%;object-fit:cover;min-height:300px}
.sgs{display:grid;gap:12px}
.sg span{display:inline-block;background:var(--sky);color:var(--blue);font-weight:700;font-size:13px;border-radius:99px;padding:2px 14px;margin-bottom:6px}
.sg ul{display:flex;flex-wrap:wrap;gap:4px 18px}
.row .sg ul li{margin-bottom:0}
.goals{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:-20px 0 36px}
.goals span{background:#fff;border:1px solid var(--line);border-radius:99px;padding:6px 16px;font-size:13px;color:var(--ink2)}
.honors{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.honors figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.honors img{border:0;border-radius:0;aspect-ratio:4/3;object-fit:contain;background:var(--soft);padding:10px}
.honors figcaption{padding:12px 14px 16px;margin:0;display:flex;flex-direction:column;gap:2px}
.honors figcaption b{font-size:14px;color:var(--ink);line-height:1.5}
.honors figcaption span{font-size:12px;color:var(--mute)}
@media (max-width:1080px){
  .rtabs .pane,.js .rtabs .pane.on{grid-template-columns:minmax(0,1fr)}
  .scenes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .honors{grid-template-columns:repeat(2,minmax(0,1fr))}
  .row .pic img{min-height:200px}
}
@media (max-width:560px){.scenes{grid-template-columns:minmax(0,1fr)}.rtabs{padding:12px}.rtabs .tl button{font-size:12.5px;padding:6px 12px}}
@media (prefers-reduced-motion:reduce){.js [data-anim]{opacity:1;transform:none;transition:none}.js .hl::after{transform:none}.js .bar .tr i{width:var(--w)}html{scroll-behavior:auto}}

@media (max-width:1080px){
  .nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;gap:0;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .nav .mob{display:block;color:var(--blue)}
  .nav a{padding:14px 20px;border-bottom:1px solid var(--line)}
  .nav a.on::after{display:none}
  .menu-btn{display:block}
  .hd .side{display:none}
  .hd .wrap{position:relative;padding:0 16px}
  .wrap{padding:0 16px}
  .g2,.g3,.g4,.trio,.dims{grid-template-columns:minmax(0,1fr)}
  .stats{grid-template-columns:1fr 1fr;row-gap:24px}
  .row,.row.rev{grid-template-columns:minmax(0,1fr)}
  .row.rev .pic{order:0}
  .row .txt{padding:28px 22px}
  .row .pic .ph{min-height:200px}
  .flow{grid-template-columns:minmax(0,1fr)}
  .flow>div{text-align:left;padding:0 0 26px 64px}
  .flow>div::before{position:absolute;left:0;top:0;margin:0}
  .flow>div::after{left:22px;top:46px;width:2px;height:calc(100% - 46px);background:repeating-linear-gradient(180deg,#b9c9f5 0 6px,transparent 6px 12px)}
  .logos{grid-template-columns:repeat(2,minmax(0,1fr))}
  .contact{grid-template-columns:minmax(0,1fr);padding:32px 24px}
  .ft .cols{grid-template-columns:1fr 1fr}
  .sec{padding:64px 0}
  .hero{padding:64px 0 30px}
  .t{display:block;overflow-x:auto}
}