/* ============================================================
   VigorMate — AI Agent Ecosystem  |  Design System
   ============================================================ */

:root{
  --bg:#05070c;
  --bg-soft:#070b12;
  --panel:rgba(255,255,255,.038);
  --panel-hi:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.085);
  --line-strong:rgba(255,255,255,.16);
  --text:#e9eff8;
  --text-2:#98a6bd;
  --text-3:#66748b;
  --brand:#12e6a0;
  --brand-2:#3ba7ff;
  --brand-3:#8b5cff;
  --brand-dim:rgba(18,230,160,.12);
  --warn:#ffb451;
  --grad:linear-gradient(135deg,#12e6a0 0%,#3ba7ff 100%);
  --grad-soft:linear-gradient(135deg,rgba(18,230,160,.16),rgba(59,167,255,.14));
  --r-sm:10px;
  --r:16px;
  --r-lg:22px;
  --r-xl:30px;
  --shadow:0 24px 70px -24px rgba(0,0,0,.85);
  --ease:cubic-bezier(.22,.72,.2,1);
  --nav-h:68px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Inter","SF Pro Display",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(920px 620px at 12% -8%,rgba(18,230,160,.13),transparent 62%),
    radial-gradient(840px 620px at 88% -4%,rgba(59,167,255,.13),transparent 62%),
    radial-gradient(900px 620px at 50% 108%,rgba(139,92,255,.09),transparent 65%);
}
body::after{
  content:"";
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(ellipse 85% 55% at 50% 0%,#000 30%,transparent 100%);
  mask-image:radial-gradient(ellipse 85% 55% at 50% 0%,#000 30%,transparent 100%);
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.22;letter-spacing:-.018em;font-weight:650}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(18,230,160,.3);color:#fff}
main{padding-top:var(--nav-h)}

/* ---------- Layout ---------- */
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 28px}
.section{position:relative;padding:112px 0}
.section.tight{padding:76px 0}
.section.hair{border-top:1px solid var(--line)}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
/* 允许栅格子项收缩，使内部的横向滚动容器（看板 / 对比表）能正常生效 */
.split>*,.grid>*{min-width:0}
.center{text-align:center}
.center .sec-desc{margin-left:auto;margin-right:auto}

/* ---------- Nav ---------- */
.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:200;height:var(--nav-h);
  background:rgba(5,7,12,.74);
  -webkit-backdrop-filter:blur(20px) saturate(160%);
  backdrop-filter:blur(20px) saturate(160%);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.site-nav.scrolled{border-bottom-color:var(--line);background:rgba(5,7,12,.9)}
.nav-inner{max-width:1240px;margin:0 auto;padding:0 28px;height:100%;display:flex;align-items:center;gap:36px}
.nav-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:32px;height:32px;border-radius:9px;overflow:hidden;flex-shrink:0;
  box-shadow:0 4px 14px rgba(0,0,0,.45),0 0 0 1px rgba(255,255,255,.16);
}
.logo-mark img{width:100%;height:100%;display:block;object-fit:cover}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-.02em}
.logo-text span{color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  font-size:14.5px;color:var(--text-2);padding:8px 13px;border-radius:9px;
  transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.nav-links a.active{color:var(--brand);background:rgba(18,230,160,.09)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;background:none;border:1px solid var(--line);border-radius:9px;
  width:38px;height:38px;align-items:center;justify-content:center;cursor:pointer;font-size:16px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:12px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .25s var(--ease);
  white-space:nowrap;max-width:100%;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--grad);color:#03140d;box-shadow:0 10px 26px -8px rgba(18,230,160,.55)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -10px rgba(18,230,160,.7)}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:rgba(255,255,255,.035)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn-lg{padding:15px 30px;font-size:16.5px;border-radius:14px}
.btn-block{width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;padding:82px 0 70px;text-align:center;overflow:hidden}
.hero-glow{
  position:absolute;left:50%;top:-180px;transform:translateX(-50%);
  width:min(900px,100%);max-width:100%;height:520px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(18,230,160,.20),rgba(59,167,255,.10) 55%,transparent 78%);
  filter:blur(30px);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:6px 8px 6px 12px;border-radius:999px;
  border:1px solid rgba(18,230,160,.28);background:rgba(18,230,160,.08);
  font-size:13px;color:#8ef2cd;letter-spacing:.01em;margin-bottom:26px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(18,230,160,.16)}
.eyebrow .tag{padding:1px 8px;border-radius:999px;background:rgba(18,230,160,.18);font-size:11.5px;font-weight:600;color:#a8f7db}
.hero h1{
  font-size:clamp(36px,5vw,64px);line-height:1.14;letter-spacing:-.035em;
  font-weight:680;max-width:980px;margin:0 auto;position:relative;
}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{
  max-width:760px;margin:26px auto 0;color:var(--text-2);
  font-size:clamp(15.5px,1.35vw,18px);line-height:1.85;
}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:38px}
.hero-meta{
  margin-top:26px;color:var(--text-3);font-size:13.5px;
  display:flex;gap:18px;justify-content:center;flex-wrap:wrap;align-items:center;
}
.hero-meta i{width:3px;height:3px;border-radius:50%;background:var(--text-3);display:inline-block}

/* ---------- Product mock ---------- */
.mock-shell{position:relative;margin-top:64px}
.mock-shell::before{
  content:"";position:absolute;inset:-2px;border-radius:26px;
  background:linear-gradient(150deg,rgba(18,230,160,.45),rgba(59,167,255,.3) 40%,rgba(139,92,255,.25) 70%,transparent);
  filter:blur(22px);opacity:.5;z-index:0;
}
.mock{
  position:relative;z-index:1;border-radius:20px;overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(180deg,#0a1019,#070b12);
  box-shadow:var(--shadow);text-align:left;
}
.mock-top{
  height:46px;display:flex;align-items:center;gap:12px;padding:0 16px;
  border-bottom:1px solid rgba(255,255,255,.07);background:rgba(255,255,255,.025);
}
.mock-dots{display:flex;gap:6px}
.mock-dots i{width:10px;height:10px;border-radius:50%;background:#2a3444;display:block}
.mock-dots i:first-child{background:#ff5f57}
.mock-dots i:nth-child(2){background:#febc2e}
.mock-dots i:nth-child(3){background:#28c840}
.mock-title{font-size:12.5px;color:var(--text-3);margin:0 auto;letter-spacing:.02em}
.mock-body{display:grid;grid-template-columns:196px 1fr 244px;min-height:376px}
.mock-side,.mock-right{padding:16px 14px;background:rgba(255,255,255,.018)}
.mock-side{border-right:1px solid rgba(255,255,255,.06)}
.mock-right{border-left:1px solid rgba(255,255,255,.06)}
.mock-label{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);margin-bottom:11px}
.side-item{
  display:flex;align-items:center;gap:9px;padding:7px 9px;border-radius:8px;
  font-size:12.5px;color:var(--text-2);margin-bottom:3px;
}
.side-item.on{background:rgba(18,230,160,.1);color:#9df3d5}
.side-item .si{width:6px;height:6px;border-radius:2px;background:currentColor;opacity:.55}
.mock-main{padding:22px 24px;display:flex;flex-direction:column;gap:14px}
.bubble{
  max-width:86%;padding:12px 15px;border-radius:13px;font-size:13.5px;line-height:1.65;color:var(--text-2);
}
.bubble.user{
  align-self:flex-end;background:rgba(59,167,255,.14);border:1px solid rgba(59,167,255,.22);color:#cfe6ff;
}
.bubble.bot{background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08)}
.bubble.bot b{color:var(--brand);font-weight:600}
.typing{display:flex;gap:5px;padding:6px 0}
.typing i{width:6px;height:6px;border-radius:50%;background:var(--brand);opacity:.4;animation:blink 1.4s infinite}
.typing i:nth-child(2){animation-delay:.2s}
.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,100%{opacity:.25;transform:translateY(0)}50%{opacity:1;transform:translateY(-3px)}}
.task-item{
  display:flex;gap:9px;align-items:flex-start;padding:9px 10px;border-radius:9px;
  border:1px solid rgba(255,255,255,.07);background:rgba(255,255,255,.025);margin-bottom:8px;
}
.task-ck{
  width:14px;height:14px;border-radius:4px;flex-shrink:0;margin-top:3px;
  border:1px solid rgba(255,255,255,.2);display:grid;place-items:center;font-size:9px;color:transparent;
}
.task-ck.done{background:var(--brand);border-color:var(--brand);color:#04120c}
.task-item span{font-size:12px;color:var(--text-2);line-height:1.5}
.mock-stat{display:flex;justify-content:space-between;font-size:11.5px;color:var(--text-3);padding:6px 2px}
.mock-stat b{color:var(--text);font-weight:600}

/* ---------- Section heads ---------- */
.sec-head{max-width:820px;margin-bottom:52px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--brand);margin-bottom:16px;
}
.sec-tag::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand),transparent)}
.sec-title{font-size:clamp(28px,3.3vw,42px);letter-spacing:-.03em;margin-bottom:16px}
.sec-desc{color:var(--text-2);font-size:16.5px;line-height:1.85;max-width:760px}
.center .sec-tag::before{display:none}

/* ---------- Cards ---------- */
.card{
  position:relative;padding:26px;border-radius:var(--r);
  border:1px solid var(--line);background:var(--panel);
  transition:transform .3s var(--ease),border-color .3s var(--ease),background .3s var(--ease);
  overflow:hidden;
}
.card::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(420px 220px at var(--mx,50%) 0%,rgba(18,230,160,.09),transparent 70%);
  opacity:0;transition:opacity .35s;
}
.card:hover{transform:translateY(-4px);border-color:rgba(18,230,160,.32);background:var(--panel-hi)}
.card:hover::after{opacity:1}
.ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:var(--brand-dim);border:1px solid rgba(18,230,160,.22);color:var(--brand);flex-shrink:0;
}
.ico svg{width:21px;height:21px}
.ico.blue{background:rgba(59,167,255,.1);border-color:rgba(59,167,255,.24);color:var(--brand-2)}
.ico.violet{background:rgba(139,92,255,.1);border-color:rgba(139,92,255,.24);color:var(--brand-3)}
.ico.amber{background:rgba(255,180,81,.1);border-color:rgba(255,180,81,.24);color:var(--warn)}
.card h3{font-size:17.5px;margin-bottom:9px;letter-spacing:-.01em}
.card p{color:var(--text-2);font-size:14.3px;line-height:1.75}
.card .num{
  position:absolute;top:20px;right:22px;font-size:12px;font-weight:700;
  color:rgba(255,255,255,.14);letter-spacing:.06em;
}
.card-hl{border-color:rgba(18,230,160,.3);background:linear-gradient(160deg,rgba(18,230,160,.09),rgba(59,167,255,.04))}

/* ---------- Pills / chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  font-size:13px;padding:6px 13px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.035);color:var(--text-2);
  transition:.22s var(--ease);
}
.chip:hover{color:var(--text);border-color:var(--line-strong)}
.chip.on{border-color:rgba(18,230,160,.35);background:rgba(18,230,160,.12);color:#9df3d5}

/* ---------- Architecture ---------- */
.arch{display:flex;flex-direction:column;gap:12px}
.arch-layer{
  display:grid;grid-template-columns:180px 1fr;gap:22px;align-items:center;
  padding:20px 24px;border-radius:var(--r);border:1px solid var(--line);
  background:linear-gradient(90deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  transition:.3s var(--ease);
}
.arch-layer:hover{border-color:rgba(18,230,160,.3);transform:translateX(3px)}
.arch-layer.key{
  border-color:rgba(18,230,160,.32);
  background:linear-gradient(90deg,rgba(18,230,160,.12),rgba(59,167,255,.05));
}
.layer-label{font-size:15px;font-weight:640;letter-spacing:-.01em}
.layer-label small{display:block;font-size:11.5px;font-weight:400;color:var(--text-3);letter-spacing:.08em;text-transform:uppercase;margin-top:4px}
.layer-body{display:flex;flex-wrap:wrap;gap:8px}
.arch-note{
  margin-top:14px;font-size:13.5px;color:var(--text-3);display:flex;align-items:center;gap:8px;
}
.arch-note svg{width:15px;height:15px;color:var(--brand);flex-shrink:0}

/* ---------- Comparison table ---------- */
.cmp-wrap{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:rgba(255,255,255,.02)}
.cmp{width:100%;border-collapse:collapse;font-size:14px}
.cmp th,.cmp td{padding:15px 20px;text-align:left;border-bottom:1px solid rgba(255,255,255,.06);vertical-align:top}
.cmp thead th{
  font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--text-3);
  font-weight:600;background:rgba(255,255,255,.03);border-bottom:1px solid var(--line-strong);
}
.cmp thead th.hi{color:var(--brand);background:rgba(18,230,160,.07)}
.cmp tbody tr:last-child td{border-bottom:none}
.cmp tbody tr:hover{background:rgba(255,255,255,.025)}
.cmp td:first-child{color:var(--text);font-weight:600;width:170px}
.cmp td.hi{background:rgba(18,230,160,.045);color:#c5f6e5}
.cmp .muted{color:var(--text-3)}
.cmp .yes{color:var(--brand);font-weight:600}
.cmp .no{color:#7c879a}
.cmp-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.cmp-scroll .cmp{min-width:760px}
/* 放置在分栏内的紧凑表格：不强制最小宽度，随列宽自适应 */
.cmp-fit .cmp{min-width:0}
.cmp-fit .cmp th,.cmp-fit .cmp td{padding:12px 14px;font-size:13px}
.cmp-fit .cmp td:first-child{width:auto;white-space:nowrap}
.cmp-fit .cmp td{word-break:break-word}

/* ---------- Plans ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}
.plan{
  border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 26px;
  background:var(--panel);position:relative;transition:.3s var(--ease);
}
.plan:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.plan.hot{border-color:rgba(18,230,160,.42);background:linear-gradient(170deg,rgba(18,230,160,.1),rgba(255,255,255,.02));box-shadow:0 22px 60px -30px rgba(18,230,160,.6)}
.plan-badge{
  position:absolute;top:-11px;left:26px;padding:3px 11px;border-radius:999px;
  background:var(--grad);color:#03140d;font-size:11.5px;font-weight:700;letter-spacing:.04em;
}
.plan h3{font-size:19px;margin-bottom:6px}
.plan .plan-desc{font-size:13.5px;color:var(--text-3);min-height:40px}
.plan-price{display:flex;align-items:baseline;gap:6px;margin:18px 0 4px}
.plan-price b{font-size:38px;font-weight:700;letter-spacing:-.03em}
.plan-price span{font-size:13.5px;color:var(--text-3)}
.plan-feat{margin:22px 0 26px;display:flex;flex-direction:column;gap:11px}
.plan-feat li{display:flex;gap:9px;font-size:13.8px;color:var(--text-2);line-height:1.6}
.plan-feat li svg{width:15px;height:15px;color:var(--brand);flex-shrink:0;margin-top:4px}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.step{padding:24px 22px;border-radius:var(--r);border:1px solid var(--line);background:var(--panel);position:relative}
.step-num{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:var(--grad);color:#03140d;font-size:13px;font-weight:700;margin-bottom:14px;
}
.step h4{font-size:15.5px;margin-bottom:7px}
.step p{font-size:13.5px;color:var(--text-2);line-height:1.7}

/* ---------- KPI ---------- */
.kpi-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.kpi{padding:22px;border-radius:var(--r);border:1px solid var(--line);background:var(--panel);text-align:center}
.kpi-num{font-size:30px;font-weight:700;letter-spacing:-.03em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.kpi-label{font-size:13px;color:var(--text-3);margin-top:4px}

/* ---------- Digital employee board ---------- */
.board{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow-x:auto;overflow-y:hidden;
  background:linear-gradient(180deg,#0a1019,#070b12);
}
.board-head{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:16px 22px;border-bottom:1px solid rgba(255,255,255,.07);background:rgba(255,255,255,.025);
  min-width:520px;
}
.board-head h4{font-size:14.5px}
.board-head .live{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--brand)}
.board-head .live i{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(18,230,160,.15)}
.board-row{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr .9fr .8fr;gap:14px;align-items:center;
  padding:14px 22px;border-bottom:1px solid rgba(255,255,255,.05);font-size:13px;
  min-width:520px;
}
.board-row:last-child{border-bottom:none}
.board-row.hd{
  font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3);
  background:rgba(255,255,255,.02);
}
.emp{display:flex;align-items:center;gap:10px}
.avatar{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;flex-shrink:0;
  font-size:12px;font-weight:700;color:#03140d;background:var(--grad);
}
.avatar.b{background:linear-gradient(135deg,#3ba7ff,#8b5cff);color:#fff}
.avatar.v{background:linear-gradient(135deg,#8b5cff,#e26bff);color:#fff}
.emp small{display:block;font-size:11px;color:var(--text-3);font-weight:400}
.bar{height:5px;border-radius:99px;background:rgba(255,255,255,.09);overflow:hidden;margin-top:5px}
.bar i{display:block;height:100%;border-radius:99px;background:var(--grad)}
.pill{
  display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;
  font-size:11.5px;font-weight:600;
}
.pill.ok{background:rgba(18,230,160,.13);color:#84efc9;border:1px solid rgba(18,230,160,.24)}
.pill.run{background:rgba(59,167,255,.13);color:#a5d2ff;border:1px solid rgba(59,167,255,.24)}
.pill.wait{background:rgba(255,180,81,.12);color:#ffcb85;border:1px solid rgba(255,180,81,.22)}
.score{font-weight:700;font-size:14px}
.score.hi{color:var(--brand)}
.score.mid{color:var(--warn)}

/* ---------- Skill cards ---------- */
.skill-card{
  border:1px solid var(--line);border-radius:var(--r);padding:20px;background:var(--panel);
  transition:.28s var(--ease);display:flex;flex-direction:column;gap:11px;
}
.skill-card:hover{transform:translateY(-3px);border-color:rgba(18,230,160,.32);background:var(--panel-hi)}
.skill-head{display:flex;align-items:center;gap:11px}
.skill-ico{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;flex-shrink:0;
  background:rgba(255,255,255,.06);border:1px solid var(--line);font-size:16px;
}
.skill-head h4{font-size:14.5px;font-weight:620;letter-spacing:-.01em}
.skill-head small{font-size:11.5px;color:var(--text-3);font-weight:400;display:block}
.skill-card p{font-size:13px;color:var(--text-2);line-height:1.65;flex:1}
.skill-foot{display:flex;align-items:center;justify-content:space-between;padding-top:10px;border-top:1px solid rgba(255,255,255,.06)}
.skill-tag{font-size:11.5px;color:var(--text-3)}
.install{font-size:12.5px;color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:4px}

/* ---------- Download cards ---------- */
.dl-card{
  border:1px solid var(--line);border-radius:var(--r);padding:22px;background:var(--panel);
  display:flex;flex-direction:column;gap:12px;transition:.28s var(--ease);
}
.dl-card:hover{border-color:rgba(18,230,160,.3);background:var(--panel-hi);transform:translateY(-3px)}
.dl-top{display:flex;align-items:center;gap:12px}
.dl-top svg{width:26px;height:26px;color:var(--brand);flex-shrink:0}
.dl-top h4{font-size:16px}
.dl-top small{display:block;font-size:11.5px;color:var(--text-3);font-weight:400}
.dl-meta{font-size:12.5px;color:var(--text-3)}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;border-radius:var(--r-xl);padding:66px 48px;text-align:center;overflow:hidden;
  border:1px solid rgba(18,230,160,.22);
  background:
    radial-gradient(600px 300px at 50% 0%,rgba(18,230,160,.18),transparent 70%),
    linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
}
.cta-band h2{font-size:clamp(26px,3vw,38px);letter-spacing:-.03em;margin-bottom:16px}
.cta-band p{color:var(--text-2);font-size:16px;max-width:640px;margin:0 auto 32px;line-height:1.8}
.cta-band .hero-actions{margin-top:0}

/* ---------- Note / callout ---------- */
.note{
  display:flex;gap:13px;padding:18px 20px;border-radius:var(--r-sm);
  border:1px solid rgba(59,167,255,.22);background:rgba(59,167,255,.07);
  font-size:13.8px;color:#bfd9f5;line-height:1.7;
}
.note svg{width:17px;height:17px;color:var(--brand-2);flex-shrink:0;margin-top:2px}
.note.warn{border-color:rgba(255,180,81,.24);background:rgba(255,180,81,.07);color:#f6d6a8}
.note.warn svg{color:var(--warn)}

/* ---------- Feature list ---------- */
.flist{display:flex;flex-direction:column;gap:16px}
.flist li{display:flex;gap:13px;align-items:flex-start}
.flist .ck{
  width:22px;height:22px;border-radius:7px;flex-shrink:0;display:grid;place-items:center;
  background:rgba(18,230,160,.13);border:1px solid rgba(18,230,160,.25);color:var(--brand);margin-top:2px;
}
.flist .ck svg{width:12px;height:12px}
.flist h4{font-size:15px;margin-bottom:3px}
.flist p{font-size:13.8px;color:var(--text-2);line-height:1.7}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:rgba(255,255,255,.012);margin-top:110px}
.foot-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:40px;
  padding:64px 0 48px;
}
.foot-brand p{color:var(--text-3);font-size:13.5px;line-height:1.8;margin-top:16px;max-width:280px}
.foot-col h5{font-size:13px;font-weight:640;margin:0 0 16px;letter-spacing:.02em}
.foot-col a{display:block;font-size:13.5px;color:var(--text-2);padding:5px 0;transition:color .2s}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{
  border-top:1px solid var(--line);padding:22px 0;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3);
}
.foot-bottom .links{display:flex;gap:20px}

/* ---------- Reveal ---------- */
/* 仅在脚本可用时才隐藏元素，避免 JS 失败导致内容不可见 */
/* 使用独立的 translate 属性做入场位移动画，避免与 .card:hover 的 transform 互相覆盖 */
html.js .reveal{opacity:0;translate:0 20px;transition:opacity .75s var(--ease),translate .75s var(--ease)}
html.js .reveal.in{opacity:1;translate:0 0}
@media(prefers-reduced-motion:reduce){
  html.js .reveal{opacity:1;translate:0 0;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- Page hero (sub pages) ---------- */
.phero{padding:74px 0 56px;position:relative;text-align:center}
.phero h1{font-size:clamp(32px,4.2vw,52px);letter-spacing:-.035em;max-width:900px;margin:0 auto}
.phero .hero-sub{margin-top:22px}
.breadcrumb{
  font-size:12.5px;color:var(--text-3);display:flex;gap:8px;justify-content:center;
  align-items:center;margin-bottom:22px;
}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span{opacity:.45}

/* ---------- Language switch ---------- */
.lang-switch{
  display:inline-flex;align-items:center;padding:2px;border-radius:999px;flex-shrink:0;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.04);
  cursor:pointer;transition:border-color .2s var(--ease),background .2s var(--ease);
}
.lang-switch span{
  font-size:11.5px;font-weight:600;line-height:1;padding:5px 9px;border-radius:999px;
  color:var(--text-3);transition:background .22s var(--ease),color .22s var(--ease);
  letter-spacing:.02em;
}
.lang-switch:hover{border-color:rgba(255,255,255,.28)}
html[data-lang="zh"] .lang-switch [data-lang-opt="zh"],
html[data-lang="en"] .lang-switch [data-lang-opt="en"]{
  background:var(--grad);color:#03140d;
}

/* ---------- English typography adjustments ---------- */
html[data-lang="en"] body{letter-spacing:0}
html[data-lang="en"] .hero h1{font-size:clamp(32px,4.3vw,58px);letter-spacing:-.035em;line-height:1.1}
html[data-lang="en"] .sec-title{letter-spacing:-.028em;line-height:1.18}
html[data-lang="en"] .nav-links a{font-size:13px;padding:8px 10px;letter-spacing:-.005em}
html[data-lang="en"] .card h3{letter-spacing:-.014em}
html[data-lang="en"] .card p,
html[data-lang="en"] .sec-desc,
html[data-lang="en"] .hero-sub{line-height:1.72}
html[data-lang="en"] .eyebrow{letter-spacing:.02em}
html[data-lang="en"] .layer-label{letter-spacing:-.01em}
html[data-lang="en"] .cmp td:first-child{width:190px}

/* ---------- Responsive ---------- */
@media(max-width:1080px){
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,1fr)}
  .kpi-row{grid-template-columns:repeat(2,1fr)}
  .plan-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr 1fr;gap:32px}
  .nav-links a{padding:8px 9px;font-size:13.5px}
  .nav-cta .nav-login{display:none}
  .mock-body{grid-template-columns:170px 1fr}
  .mock-right{display:none}
  /* 双栏在这个宽度下过窄，提前转为单栏 */
  .split{grid-template-columns:1fr;gap:40px}
  .board-row{grid-template-columns:1.3fr 1fr 1fr 1fr}
  .board-row .col-hide{display:none}
}
@media(max-width:900px){
  .split{grid-template-columns:1fr;gap:34px}
  .arch-layer{grid-template-columns:1fr;gap:12px}
  .section{padding:78px 0}
  .g3{grid-template-columns:1fr}
  .cta-band{padding:48px 24px}
}
@media(max-width:1180px){
  html[data-lang="en"] .nav-links a{padding:8px 7px;font-size:12.5px}
  html[data-lang="en"] .nav-cta .nav-login{display:none}
  html[data-lang="en"] .nav-inner{gap:22px}
}
@media(max-width:820px){
  .nav-links{
    display:none;position:absolute;top:var(--nav-h);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;padding:12px 20px 20px;
    background:rgba(7,11,18,.98);border-bottom:1px solid var(--line);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:11px 12px;font-size:15px}
  .nav-toggle{display:flex;margin-left:auto}
  .nav-cta .btn-ghost{display:none}
  .nav-cta .btn-primary{display:none}
  .nav-inner{gap:14px}
  .hero{padding:52px 0 40px}
  .mock-body{grid-template-columns:1fr;min-height:auto}
  .mock-side{display:none}
  .mock-shell{margin-top:44px}
  .board-row{grid-template-columns:1fr 1fr;gap:8px;font-size:12px}
  .board-row.hd{display:none}
  .foot-grid{grid-template-columns:1fr 1fr}
  .section{padding:64px 0}
  .g2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .kpi-row{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
  .wrap{padding:0 20px}
  .nav-inner{padding:0 20px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  /* 英文文案较长，窄屏允许按钮换行，避免 nowrap 撑破容器 */
  .btn{white-space:normal;text-align:center}
  .foot-grid{grid-template-columns:1fr}
}