/* ============================================================
   MRM EOS — mrmeos.com design system
   Spec: 00-mrmeos.com-网站设计风格规范.md
   ============================================================ */
:root{
  --blue:#2563EB; --blue-deep:#1E3A8A; --blue-soft:#DBEAFE;
  --teal:#0D9488; --purple:#7C3AED;
  --ink:#0F172A; --ink-2:#475569; --ink-3:#94A3B8;
  --bg:#FFFFFF; --bg-soft:#F8FAFC; --line:#E2E8F0; --dark:#0B1220;
  --ok:#16A34A; --warn:#D97706; --bad:#DC2626;
  --r-card:16px; --r-btn:10px; --r-shot:12px;
  --sh-1:0 1px 3px rgba(15,23,42,.08); --sh-2:0 12px 32px rgba(15,23,42,.12);
  --max:1200px; --copy:720px;
  --ease:cubic-bezier(.2,.8,.2,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:Inter,'Noto Sans SC',system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--bg);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
:lang(zh){line-height:1.75}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
h1{font-size:56px;line-height:1.14;font-weight:800;letter-spacing:-1.2px}
h2{font-size:40px;line-height:1.2;font-weight:700;letter-spacing:-.6px}
h3{font-size:28px;line-height:1.28;font-weight:700}
h4{font-size:20px;line-height:1.4;font-weight:700}
.small{font-size:14px;line-height:1.55;color:var(--ink-3)}
.lead{font-size:20px;color:var(--ink-2);max-width:var(--copy)}
.num{font-variant-numeric:tabular-nums}
section{padding:96px 0}
.sec-soft{background:var(--bg-soft)}
.sec-dark{background:var(--dark);color:#fff}
.sec-dark .lead{color:#CBD5E1}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
.kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--blue);margin-bottom:14px}
.sec-dark .kicker{color:#93C5FD}
/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:16px;padding:13px 26px;border-radius:var(--r-btn);border:1.5px solid transparent;cursor:pointer;transition:all .18s var(--ease)}
.btn-pri{background:var(--blue);color:#fff}
.btn-pri:hover{background:#1D4ED8;transform:translateY(-1px)}
.btn-sec{background:#fff;color:var(--blue);border-color:#BFDBFE}
.btn-sec:hover{border-color:var(--blue)}
.sec-dark .btn-pri{background:#fff;color:var(--blue-deep)}
.sec-dark .btn-sec{background:transparent;color:#fff;border-color:#334155}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}
/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);height:72px;display:flex;align-items:center;border-bottom:1px solid transparent;transition:border-color .2s}
.nav.scrolled{border-color:var(--line);box-shadow:var(--sh-1)}
.nav-in{max-width:var(--max);margin:0 auto;padding:0 24px;width:100%;display:flex;align-items:center;gap:28px}
.nav-logo img,.nav-logo svg{height:34px}
.nav-links{display:flex;gap:4px;flex:1}
.nav-links>li{position:relative}
.nav-links a.top{display:block;padding:10px 14px;font-weight:600;font-size:15px;color:var(--ink-2);border-radius:8px}
.nav-links a.top:hover,.nav-links li:hover>a.top{color:var(--ink);background:var(--bg-soft)}
.nav-links a.top.on{color:var(--blue)}
.mega{position:absolute;top:calc(100% + 8px);left:-20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:22px;display:none;min-width:560px}
.nav-links li:hover .mega{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mega.narrow{min-width:300px}
.nav-links li:hover .mega.narrow{display:block}
.mega h5{font-size:13px;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:7px}
.mega h5 i{width:8px;height:8px;border-radius:50%;display:inline-block}
.mega ul li a{display:block;padding:5px 0;font-size:14px;color:var(--ink-2)}
.mega ul li a:hover{color:var(--blue)}
.mega .desc{font-size:12.5px;color:var(--ink-3);margin-bottom:10px}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-cta .lang{font-size:13.5px;font-weight:600;color:var(--ink-3);padding:8px}
.nav-cta .lang b{color:var(--ink)}
.nav-cta .btn{padding:10px 18px;font-size:14.5px}
/* ---------- hero ---------- */
.hero{background:linear-gradient(180deg,#F8FAFC 0%,#EFF6FF 100%);padding:110px 0 84px}
.hero h1{max-width:900px}
.hero .lead{margin:24px 0 34px}
.grad{background:linear-gradient(90deg,var(--teal),var(--blue) 45%,var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}
.risk{margin-top:18px;font-size:14px;color:var(--ink-3)}
.risk b{color:var(--ok)}
/* ---------- tabs ---------- */
.tabs{display:flex;gap:8px;flex-wrap:wrap}
.tabs button{font:inherit;font-weight:600;font-size:15px;padding:11px 20px;border-radius:999px;border:1.5px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;transition:all .15s var(--ease)}
.tabs button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.tabpane{display:none;padding-top:20px}
.tabpane.on{display:block;animation:fadeup .3s var(--ease)}
.tabcard{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 28px;box-shadow:var(--sh-1);display:flex;gap:16px;align-items:flex-start}
.tabcard .tc-bar{width:4px;align-self:stretch;border-radius:99px;background:var(--c,var(--blue));flex:none}
.tabcard p{font-size:17.5px;color:var(--ink-2);max-width:none}
@keyframes fadeup{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
/* ---------- logo strip ---------- */
.logos{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:center}
.logos span{font-weight:600;font-size:14px;color:var(--ink-2);letter-spacing:.3px;border:1px solid var(--line);background:#fff;padding:8px 18px;border-radius:999px}
/* ---------- day timeline (solutions) ---------- */
.dayline{position:relative;margin:26px 0 8px;padding-left:26px}
.dayline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:var(--line);border-radius:2px}
.dayline li{position:relative;padding:10px 0 10px 14px}
.dayline li::before{content:"";position:absolute;left:-24px;top:19px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--c,var(--blue))}
.dayline .t{display:inline-block;font-weight:800;font-size:14px;color:var(--ink);min-width:52px;font-variant-numeric:tabular-nums}
.dayline .os{display:inline-block;font-size:11.5px;font-weight:700;padding:2px 9px;border-radius:999px;margin:0 8px 0 4px;color:#fff;vertical-align:1px}
.dayline p{display:inline;font-size:15px;color:var(--ink-2)}
/* ---------- swap rows (old → new compact compare) ---------- */
.swaps{margin-top:16px}
.swaps .row{display:flex;align-items:baseline;gap:10px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;flex-wrap:wrap}
.swaps .row:last-child{border-bottom:0}
.swaps .k{flex:none;width:92px;font-weight:700;color:var(--ink);font-size:13.5px}
.swaps .old{color:var(--ink-3);text-decoration:line-through;text-decoration-color:#CBD5E1;text-decoration-thickness:1.5px}
.swaps .arr{color:var(--ink-3);flex:none;font-size:13px}
.swaps .new{color:var(--blue-deep);font-weight:600}
/* ---------- wide industry card ---------- */
.span2{grid-column:span 2}
.feats.cols2{columns:2;column-gap:26px;margin-top:14px}
.feats.cols2 li{break-inside:avoid}
/* ---------- shot ui typography guard ---------- */
.shot .ui{font-size:13.5px}
.shot .ui .chip{display:inline-block;font-size:11.5px;font-weight:600;padding:2px 9px;border-radius:999px;background:var(--bg-soft);border:1px solid var(--line);color:var(--ink-2)}
.shot .ui .chip.blue{background:var(--blue-soft);border-color:transparent;color:var(--blue-deep)}
.shot .ui .chip.warn{background:#FFFBEB;border-color:#FDE68A;color:#92700C}
.narr .shot{min-height:260px;display:flex;flex-direction:column}
.narr .shot .ui{flex:1;display:flex;flex-direction:column;justify-content:center}
/* ---------- price placeholder ---------- */
.price-tbd{font-size:40px;font-weight:800;letter-spacing:-1px;color:var(--ink-3)}
.price-tbd + .ph{margin-top:6px}
/* ---------- cards ---------- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px;box-shadow:var(--sh-1);position:relative;overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.card.topline::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--c,var(--blue)),transparent 70%)}
.card .icon{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:18px;background:color-mix(in srgb,var(--c,var(--blue)) 12%,#fff)}
.card .icon svg{width:24px;height:24px;stroke:var(--c,var(--blue))}
.card h3{font-size:22px;margin-bottom:10px}
.card p{color:var(--ink-2);font-size:15.5px}
.card .more{display:inline-block;margin-top:16px;font-weight:600;font-size:15px;color:var(--c,var(--blue))}
.card ul.feats{margin-top:14px}
.card ul.feats li{font-size:14.5px;color:var(--ink-2);padding:4px 0 4px 24px;position:relative}
.card ul.feats li::before{content:"";position:absolute;left:2px;top:11px;width:14px;height:14px;border-radius:50%;background:color-mix(in srgb,var(--c,var(--blue)) 15%,#fff)}
.card ul.feats li::after{content:"";position:absolute;left:6px;top:15px;width:6px;height:3.5px;border-left:1.8px solid var(--c,var(--blue));border-bottom:1.8px solid var(--c,var(--blue));transform:rotate(-45deg)}
/* ---------- stats band ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stats .v{font-size:40px;font-weight:800;letter-spacing:-1px;white-space:nowrap}
.stats .k{font-size:13.5px;color:#7C8CA5;margin-top:6px;letter-spacing:.3px}
.stat-pills{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:34px;padding-top:30px;border-top:1px solid #1E293B}
.stat-pills span{display:inline-flex;align-items:center;gap:9px;font-size:15px;font-weight:600;color:#E2E8F0;background:#111C30;border:1px solid #24324A;padding:10px 20px;border-radius:999px;white-space:nowrap}
.stat-pills i{width:18px;height:18px;border-radius:50%;background:#1D4ED8;position:relative;flex:none}
.stat-pills i::after{content:"";position:absolute;left:5px;top:4.5px;width:6px;height:3.5px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg)}
/* ---------- loop diagram ---------- */
.loop-wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.loop-notes li{padding:12px 0 12px 40px;position:relative;border-bottom:1px solid #1E293B;font-size:15.5px;color:#CBD5E1}
.loop-notes li:last-child{border-bottom:0}
.loop-notes li b{color:#fff;display:block;font-size:16px}
.loop-notes li .dot{position:absolute;left:4px;top:16px;width:22px;height:22px;border-radius:50%;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;color:#fff}
/* ---------- compare table ---------- */
.cmp{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.cmp th,.cmp td{padding:17px 22px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);vertical-align:middle}
.cmp thead th{font-size:14.5px;color:var(--ink);font-weight:700;background:var(--bg-soft);white-space:nowrap}
.cmp td:first-child{width:200px;color:var(--ink)}
.cmp td{color:var(--ink-2)}
.cmp tr:last-child td{border-bottom:0}
.cmp .us{background:#EFF6FF}
.cmp thead th.us{background:#DBEAFE;color:var(--blue-deep)}
.cmp thead th.us .tag{display:inline-block;background:var(--blue);color:#fff;font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;margin-left:6px}
.cmp td.us{font-weight:600;color:var(--blue-deep)}
.cmp .no{color:var(--ink-3)}
.yes{display:inline-flex;width:20px;height:20px;border-radius:50%;background:var(--blue);position:relative;vertical-align:-4px}
.yes::after{content:"";position:absolute;left:5.5px;top:5px;width:7px;height:4px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg)}
/* ---------- case tabs ---------- */
.case{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:34px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;box-shadow:var(--sh-1)}
.case .metric{font-size:52px;font-weight:800;color:var(--blue);letter-spacing:-1.5px;text-align:right}
.case .metric small{display:block;font-size:14px;color:var(--ink-3);font-weight:500;letter-spacing:0}
.case .who{font-size:14px;color:var(--ink-3);margin-top:10px}
.ph{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;color:#92700C;border:1px solid #FDE68A;background:#FFFBEB;padding:3px 10px;border-radius:999px;vertical-align:middle;letter-spacing:.2px}
/* 统一节头节奏 */
.sec-head{max-width:780px;margin:0 auto 52px;text-align:center}
.sec-head .lead{margin:16px auto 0}
/* 信任小卡 */
.tcard{display:flex;gap:14px;align-items:flex-start;padding:22px 24px}
.tcard:hover{transform:none;box-shadow:var(--sh-1)}
.tcard .ti{width:40px;height:40px;border-radius:10px;background:var(--blue-soft);display:flex;align-items:center;justify-content:center;flex:none}
.tcard .ti svg{width:20px;height:20px;stroke:var(--blue);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.tcard h4{font-size:16px;margin-bottom:4px}
/* ---------- shots ---------- */
.shot{border:1px solid var(--line);border-radius:var(--r-shot);box-shadow:var(--sh-2);overflow:hidden;background:#fff}
.shot .bar{height:34px;background:var(--bg-soft);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:6px;padding:0 14px}
.shot .bar i{width:10px;height:10px;border-radius:50%;display:block}
.shot .bar i:nth-child(1){background:#F87171}.shot .bar i:nth-child(2){background:#FBBF24}.shot .bar i:nth-child(3){background:#34D399}
.shot .ui{padding:0}
.narr{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0}
.narr.flip .txt{order:2}
.narr .txt h3{margin-bottom:12px}
.narr .txt p{color:var(--ink-2)}
.narr .txt .pt{font-size:13px;font-weight:700;color:var(--c,var(--blue));letter-spacing:1px;text-transform:uppercase;margin-bottom:10px}
.callout{position:relative;display:inline-block;background:var(--ink);color:#fff;font-size:12.5px;font-weight:600;padding:5px 11px;border-radius:8px}
/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:st}
.steps .st{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;counter-increment:st}
.steps .st::before{content:counter(st,decimal-leading-zero);font-size:13px;font-weight:800;color:var(--blue);letter-spacing:1px}
.steps .st h4{margin:8px 0 6px}
.steps .st p{font-size:14.5px;color:var(--ink-2)}
/* ---------- feature matrix ---------- */
details.matrix{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
details.matrix summary{cursor:pointer;padding:20px 26px;font-weight:700;font-size:17px;list-style:none;display:flex;justify-content:space-between;align-items:center}
details.matrix summary::after{content:"+";font-size:24px;color:var(--ink-3);font-weight:300}
details.matrix[open] summary::after{content:"−"}
.mx{display:grid;grid-template-columns:repeat(3,1fr);gap:2px 28px;padding:6px 26px 26px}
.mx span{font-size:14px;color:var(--ink-2);padding:6px 0 6px 20px;position:relative}
.mx span::before{content:"";position:absolute;left:0;top:14px;width:6px;height:6px;border-radius:50%;background:var(--c,var(--blue))}
/* ---------- pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:stretch}
.plan{background:#fff;border:1.5px solid var(--line);border-radius:var(--r-card);padding:30px;display:flex;flex-direction:column}
.plan.hot{border-color:var(--blue);box-shadow:var(--sh-2);position:relative}
.plan.hot .flag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--blue);color:#fff;font-size:12px;font-weight:700;padding:4px 14px;border-radius:999px;white-space:nowrap}
.plan .pname{font-weight:800;font-size:19px}
.plan .pfor{font-size:13.5px;color:var(--ink-3);margin:4px 0 16px}
.plan .price{font-size:40px;font-weight:800;letter-spacing:-1px}
.plan .price small{font-size:14px;color:var(--ink-3);font-weight:500}
.plan ul{margin:18px 0 24px;flex:1}
.plan ul li{font-size:14.5px;color:var(--ink-2);padding:5px 0 5px 24px;position:relative}
.plan ul li::before{content:"✓";position:absolute;left:2px;color:var(--blue);font-weight:700}
.plan .btn{justify-content:center}
/* ---------- faq ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;padding:20px 4px;font-weight:600;font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:20px}
.faq summary::after{content:"+";color:var(--ink-3);font-size:22px;font-weight:300}
.faq details[open] summary::after{content:"−"}
.faq .a{padding:0 4px 22px;color:var(--ink-2);font-size:15.5px;max-width:700px}
/* ---------- footer ---------- */
footer{background:var(--dark);color:#94A3B8;padding:72px 0 36px;font-size:14.5px}
.f-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:36px;margin-bottom:48px}
.f-grid h6{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px}
.f-grid a{display:block;padding:4px 0;color:#94A3B8}
.f-grid a:hover{color:#fff}
.f-bottom{border-top:1px solid #1E293B;padding-top:26px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13.5px;color:#64748B}
/* ---------- page hero (inner pages) ---------- */
.phero{padding:88px 0 64px;background:linear-gradient(135deg,#F8FAFC 55%,color-mix(in srgb,var(--c,var(--blue)) 9%,#fff))}
.phero h1{font-size:48px}
.phero .stack{margin-top:20px;font-size:19px;font-weight:600;color:var(--ink)}
.phero .stack em{font-style:normal;color:var(--c,var(--blue))}
.crumb{font-size:13.5px;color:var(--ink-3);margin-bottom:22px}
.crumb a:hover{color:var(--blue)}
/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(8px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}*{animation:none!important}}
/* ---------- responsive ---------- */
@media(max-width:1024px){
  h1{font-size:42px}.phero h1{font-size:38px}h2{font-size:32px}
  .grid3,.steps,.mx{grid-template-columns:repeat(2,1fr)}
  .plans,.grid4{grid-template-columns:repeat(2,1fr)}
  .loop-wrap,.narr{grid-template-columns:1fr}.narr.flip .txt{order:0}
  .stats{grid-template-columns:repeat(2,1fr);row-gap:28px}
  .f-grid{grid-template-columns:repeat(2,1fr)}
  .nav-links{display:none}
}
@media(max-width:640px){
  h1{font-size:34px}.hero{padding:72px 0 56px}section{padding:56px 0}
  .grid3,.grid2,.grid4,.plans,.steps,.mx{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}.stats .v{font-size:32px}
  .case{grid-template-columns:1fr}.case .metric{text-align:left}
  .cmp-scroll{overflow-x:auto}.cmp{min-width:640px}
  .span2{grid-column:auto}.feats.cols2{columns:1}
  .tabcard{padding:18px 20px}
}