/* ==========================================================
   Echo麦序机器人 · 产品页
   版式取向：浅色底 + 靛蓝主色 + 横向信息条 / 数据面板 / 对比表
   （与扣排器页的照片 Hero + 网格卡片形成明显差异）
   ========================================================== */
:root{
  --brand:#5B5BD6;
  --brand-d:#4338CA;
  --brand-soft:#EEF0FF;
  --ink:#161733;
  --ink-2:#3D4160;
  --muted:#6B708C;
  --line:#E6E8F2;
  --bg:#FFFFFF;
  --bg-soft:#F6F7FC;
  --radius:16px;
  --maxw:1200px;
  --pad:clamp(20px,4vw,40px);
  --shadow:0 20px 50px rgba(22,23,51,.1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img,svg{display:block}
::selection{background:var(--brand);color:#fff}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-thumb{background:#C9CCE0;border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:#A9AECC}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}
.mono{font-variant-numeric:tabular-nums}
.section{padding:clamp(64px,7.5vw,104px) 0}
.kicker{display:inline-flex;align-items:center;font-size:11.5px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--brand);margin-bottom:10px}
.kicker::before{content:"";width:24px;height:2px;border-radius:2px;background:currentColor;margin-right:10px;opacity:.85}
.sec-title{font-size:clamp(26px,3.2vw,36px);font-weight:800;letter-spacing:-.02em;line-height:1.25}
.sec-sub{color:var(--muted);font-size:15px;margin-top:10px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:inherit;font-size:14.5px;font-weight:600;padding:13px 24px;border-radius:12px;border:1px solid transparent;cursor:pointer;transition:.2s}
.btn:active{transform:translateY(1px)}
.btn-brand{background:linear-gradient(180deg,#6E6EE0,var(--brand-d));color:#fff;box-shadow:0 12px 26px rgba(91,91,214,.32)}
.btn-brand:hover{background:linear-gradient(180deg,var(--brand),var(--brand-d));box-shadow:0 16px 36px rgba(91,91,214,.44)}
.btn-line{border-color:var(--line);color:var(--ink-2);background:#fff}
.btn-line:hover{border-color:var(--brand);color:var(--brand)}
.btn svg{transition:transform .25s}
.btn:hover svg{transform:translateX(3px)}

/* ---------- 顶栏（与扣排器页统一） ---------- */
.topbar{position:fixed;top:0;left:0;right:0;z-index:90;height:72px;background:rgba(255,255,255,.9);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line);box-shadow:0 6px 22px rgba(15,23,42,.05);transition:box-shadow .3s}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.logo img{width:28px;height:28px}
.logo span{font-size:11px;color:var(--muted);letter-spacing:.14em;font-weight:600}
.menu{display:flex;align-items:center;gap:26px;margin-left:auto}
.menu a{font-size:14px;color:var(--ink-2);padding:4px 0;position:relative;transition:color .2s}
.menu a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .28s}
.menu a:hover,.menu a.active{color:var(--brand)}
.menu a.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:10px}
.burger{display:none;width:42px;height:40px;border:1px solid var(--line);border-radius:11px;background:#fff;cursor:pointer}
.burger s{display:block;width:16px;height:1.6px;background:var(--ink);margin:4px auto;border-radius:2px;transition:.25s}
.burger.on s:nth-child(2){opacity:0}
.burger.on s:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
.burger.on s:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}

/* ---------- Hero（浅色底 + 数据面板） ---------- */
.hero{position:relative;overflow:hidden;padding:140px 0 70px;background:linear-gradient(180deg,#F4F5FD 0%,#FFFFFF 62%)}
.hero::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;background:radial-gradient(42% 50% at 9% 5%,rgba(91,91,214,.16),transparent 60%),radial-gradient(40% 46% at 95% 0%,rgba(124,58,237,.12),transparent 62%)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center}
.tag-pill{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:99px;padding:6px 14px}
.hero h1{font-size:clamp(34px,4.8vw,58px);font-weight:800;letter-spacing:-.03em;line-height:1.14;margin:22px 0 0}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero .lead{color:var(--ink-2);font-size:15.5px;margin-top:20px;max-width:520px}
.hero-cta{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-note{margin-top:26px;font-size:12.5px;color:var(--muted);display:flex;gap:22px;flex-wrap:wrap}
.hero-note span{display:inline-flex;align-items:center;gap:6px}
.hero-note i{width:6px;height:6px;border-radius:50%;background:var(--brand);display:block}

/* Hero 右侧：Web 管理后台（浏览器窗口） */
.hero-stage{position:relative;z-index:1}
.hero-stage::before{content:"";position:absolute;z-index:-1;left:-12%;right:-12%;bottom:-16%;height:60%;background:radial-gradient(60% 120% at 50% 0%,rgba(91,91,214,.26),transparent 72%);filter:blur(28px)}
.hero-board{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 30px 70px rgba(22,23,51,.16);overflow:hidden}
.hb-bar{display:flex;align-items:center;gap:10px;padding:12px 16px;background:linear-gradient(180deg,#FBFCFF,#F2F4FA);border-bottom:1px solid var(--line)}
.hb-dots{display:flex;gap:6px}
.hb-dots i{width:11px;height:11px;border-radius:50%}
.hb-dots i:nth-child(1){background:#FF5F57}
.hb-dots i:nth-child(2){background:#FEBC2E}
.hb-dots i:nth-child(3){background:#28C840}
.hb-url{flex:1;display:flex;align-items:center;gap:7px;font-size:12px;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:9px;padding:6px 12px;max-width:240px;font-variant-numeric:tabular-nums;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.hb-url svg{width:12px;height:12px;color:var(--brand);flex:0 0 auto}
.hb-live{margin-left:auto;display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:600;color:#1F8A5B;background:#E6F6EE;padding:4px 10px;border-radius:99px}
.hb-live i{width:6px;height:6px;border-radius:50%;background:#2F9E6B;display:block}
.hb-body{padding:18px}
.hb-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
.hb-kpi{background:var(--bg-soft);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.hb-kpi b{display:block;font-size:24px;font-weight:800;letter-spacing:-.02em;color:var(--brand);line-height:1;font-variant-numeric:tabular-nums}
.hb-kpi span{display:block;margin-top:6px;font-size:12px;color:var(--muted)}
.hb-sal{background:var(--bg-soft);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.hb-cap{font-size:13px;font-weight:700;color:var(--ink);margin-bottom:10px}
.hb-tr{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;align-items:center;padding:9px 6px;font-size:13px;border-radius:9px}
.hb-tr+.hb-tr{margin-top:2px}
.hb-th{font-size:11px;letter-spacing:.04em;color:var(--muted);text-transform:uppercase}
.hb-tr:not(.hb-th):hover{background:#fff}
.hb-tr>span:nth-child(n+2){text-align:right;font-variant-numeric:tabular-nums}
.hb-pay{font-weight:700;color:var(--brand)}
.hb-sum{margin-top:6px;font-weight:700;color:var(--ink);background:#fff;border-top:1px solid var(--line)}

/* ---------- 数据统计 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:40px}
.stat{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;transition:.3s}
.stat::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;border-radius:var(--radius) var(--radius) 0 0;background:linear-gradient(90deg,var(--brand),rgba(91,91,214,.2));opacity:0;transition:opacity .3s}
.stat:hover::before{opacity:1}
.stat:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent}
.stat .si{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);margin-bottom:14px}
.stat b{display:block;font-size:28px;font-weight:800;letter-spacing:-.02em;line-height:1.1}
.stat span{font-size:12.5px;color:var(--muted)}

/* ---------- 功能行（横向，区别于卡片网格） ---------- */
.rows{margin-top:40px;border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:56px 220px minmax(0,1fr) auto;gap:24px;align-items:center;padding:22px 8px;border-bottom:1px solid var(--line);transition:background .25s,padding .25s}
.row:hover{background:var(--bg-soft);padding-left:16px}
.row .rn{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--brand)}
.row h3{font-size:17px;font-weight:700;letter-spacing:-.01em}
.row p{font-size:14px;color:var(--muted);line-height:1.7}
.row .rtag{font-size:11.5px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:8px;padding:4px 11px;white-space:nowrap}

/* ---------- 后台演示 ---------- */
.show{display:grid;grid-template-columns:1fr 1.08fr;gap:48px;align-items:center}
.console{border-radius:16px;overflow:hidden;border:1px solid #262B45;background:#12142A;box-shadow:0 26px 60px rgba(22,23,51,.28)}
.c-bar{display:flex;align-items:center;gap:7px;padding:11px 14px;background:#1A1D38;border-bottom:1px solid #262B45}
.c-bar i{width:9px;height:9px;border-radius:50%;background:#3A3F63;display:block}
.c-bar span{font-size:11px;color:#9AA0C4;margin-left:8px}
.c-body{display:grid;grid-template-columns:124px minmax(0,1fr)}
.c-side{border-right:1px solid #262B45;padding:12px 0;background:#161933}
.c-side div{display:flex;align-items:center;gap:8px;padding:7px 14px;font-size:11.5px;color:#9AA0C4;border-left:2px solid transparent}
.c-side div.on{color:#fff;background:rgba(255,255,255,.06);border-left-color:var(--brand)}
.c-side svg{width:12px;height:12px;flex:0 0 auto}
.c-main{padding:14px 16px}
.c-row{display:flex;align-items:center;gap:11px;padding:9px 2px;border-bottom:1px solid #21253F}
.c-row:last-child{border-bottom:0}
.c-row .nm{flex:1;font-size:12px;color:#EAECF7}
.c-row .sub{font-size:10px;color:#9AA0C4}
.c-pill{font-size:10px;padding:2px 8px;border-radius:99px;border:1px solid #333A63;color:#9AA0C4}
.c-pill.on{color:#7FE0AB;border-color:rgba(47,158,107,.4)}
.c-foot{display:flex;justify-content:space-between;padding:10px 16px;border-top:1px solid #262B45;font-size:10.5px;color:#9AA0C4}
.show-txt h3{font-size:22px;font-weight:800;letter-spacing:-.015em;margin-bottom:14px}
.show-txt p{color:var(--ink-2);font-size:15px;margin-bottom:22px}
.ticks{display:grid;gap:12px}
.ticks li{display:flex;gap:11px;font-size:14px;color:var(--ink-2)}
.ticks li::before{content:"✓";flex:0 0 auto;width:20px;height:20px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:11px;font-weight:700}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px}
.step::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;border-radius:var(--radius) var(--radius) 0 0;background:linear-gradient(90deg,var(--brand),rgba(91,91,214,.2));opacity:0;transition:opacity .3s}
.step:hover::before{opacity:1}
.step b{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:9px;background:var(--brand);color:#fff;font-size:13px;font-weight:700}
.step h3{font-size:17px;font-weight:700;margin:14px 0 8px}
.step p{font-size:14px;color:var(--muted)}

/* ---------- 套餐对比表 ---------- */
.ptable{margin-top:36px;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff}
.ptable table{width:100%;border-collapse:collapse;font-size:14px}
.ptable th,.ptable td{padding:15px 18px;text-align:center;border-bottom:1px solid var(--line)}
.ptable th{background:var(--bg-soft);font-size:13px;font-weight:700}
.ptable td:first-child,.ptable th:first-child{text-align:left;color:var(--ink-2);width:34%}
.ptable .hot{background:var(--brand-soft)}
.ptable th.hot{color:var(--brand)}
.ptable tr:last-child td{border-bottom:0}
.pprice{font-size:20px;font-weight:800;letter-spacing:-.02em}
.pprice em{font-style:normal;font-size:12px;color:var(--muted);font-weight:500}
.ptable-note{text-align:center;font-size:12.5px;color:var(--muted);margin-top:16px}

/* ---------- FAQ 两列 ---------- */
.faq2{margin-top:36px;display:grid;grid-template-columns:1fr 1fr;gap:0 40px;border-top:1px solid var(--line)}
.qa{border-bottom:1px solid var(--line)}
.qa-q{width:100%;display:flex;align-items:center;gap:16px;padding:20px 2px;background:none;border:0;font-family:inherit;font-size:16px;font-weight:600;text-align:left;color:var(--ink);cursor:pointer;transition:.2s}
.qa-q:hover{color:var(--brand)}
.qa-q span{flex:1}
.qa-q i{font-style:normal;color:var(--brand);font-size:16px;transition:transform .3s}
.qa.open .qa-q i{transform:rotate(45deg)}
.qa-a{max-height:0;overflow:hidden;transition:max-height .36s}
.qa-a p{padding:0 20px 20px 2px;font-size:14px;color:var(--muted);line-height:1.85}

/* ---------- CTA ---------- */
.cta{margin-top:10px;border-radius:22px;padding:clamp(44px,6vw,68px) clamp(24px,5vw,56px);text-align:center;color:#fff;background:linear-gradient(135deg,#3B3BA8 0%,#5B5BD6 55%,#7C3AED 100%)}
.cta h2{font-size:clamp(26px,3.6vw,40px);font-weight:800;letter-spacing:-.02em;line-height:1.25}
.cta p{color:rgba(255,255,255,.82);margin:14px auto 26px;max-width:540px;font-size:15px}
.cta .hero-cta{justify-content:center;margin-top:0}
.btn-white{background:#fff;color:var(--ink)}
.btn-white:hover{color:var(--brand)}
.btn-ghost-w{border-color:rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.08)}
.btn-ghost-w:hover{background:rgba(255,255,255,.18)}

/* ---------- 页脚 ---------- */
.foot{position:relative;padding:64px 0 34px;color:#E9EDF3;background:linear-gradient(180deg,rgba(6,12,26,.88),rgba(6,12,26,.96)),#08152F}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.foot h4{font-size:13px;font-weight:700;color:#fff;margin-bottom:14px}
.foot li{margin-bottom:9px}
.foot a{font-size:13.5px;color:rgba(255,255,255,.62);transition:color .2s}
.foot a:hover{color:#8FB4FF}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff}
.foot-brand img{width:26px;height:26px;flex:0 0 auto;display:block}
.foot p.desc{color:rgba(255,255,255,.6);font-size:13.5px;margin-top:14px;max-width:32ch}
.disclaimer{margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);font-size:12px;color:rgba(255,255,255,.45);line-height:1.9;max-width:98ch}
.foot-bottom{margin-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.5)}

/* ---------- 弹窗 / 工具 ---------- */
.modal{position:fixed;inset:0;z-index:120;display:none;align-items:center;justify-content:center;padding:20px}
.modal.show{display:flex}
.modal-mask{position:absolute;inset:0;background:rgba(18,20,42,.6);backdrop-filter:blur(4px)}
.modal-card{position:relative;z-index:1;width:100%;max-width:340px;background:#fff;border-radius:18px;padding:30px 28px 26px;text-align:center;box-shadow:0 30px 80px rgba(18,20,42,.4);animation:modalIn .28s cubic-bezier(.2,.7,.2,1)}
@keyframes modalIn{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:none}}
.modal-close{position:absolute;top:8px;right:10px;width:34px;height:34px;border:0;background:none;color:var(--muted);font-size:24px;line-height:1;cursor:pointer;border-radius:9px;font-family:inherit}
.modal-close:hover{background:var(--bg-soft)}
.modal-title{font-size:19px;font-weight:700}
.modal-sub{font-size:13px;color:var(--muted);margin:6px 0 18px}
.modal-qr{width:210px;height:210px;object-fit:cover;border:1px solid var(--line);border-radius:14px;margin:0 auto}
.modal-tip{font-size:12.5px;color:var(--muted);margin:15px 0 18px;line-height:1.7}
.modal-btn{width:100%}
.totop{position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--ink-2);display:grid;place-items:center;cursor:pointer;z-index:80;box-shadow:0 8px 20px rgba(22,23,51,.08);opacity:0;pointer-events:none;transition:.3s}
.totop.show{opacity:1;pointer-events:auto}
.totop:hover{color:var(--brand);border-color:var(--brand)}
.rv{opacity:0;transform:translateY(16px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .hero-grid,.show{grid-template-columns:1fr;gap:40px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .faq2{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .row{grid-template-columns:44px minmax(0,1fr);gap:16px}
  .row .rtag{display:none}
}
@media (max-width:860px){
  .menu{position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:8px var(--pad) 18px;transform:translateY(-10px);opacity:0;pointer-events:none;transition:.25s}
  .menu.show{transform:none;opacity:1;pointer-events:auto}
  .menu a{padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
  .menu a::after{display:none}
  .burger{display:block}
  .ptable{overflow-x:auto}
}
@media (max-width:620px){
  .stats{grid-template-columns:1fr}
  .hb-url{max-width:none}
}