/* =========================================================
   漫核科技 MANJUCORE · BP 站点样式
   设计 tokens 与 PPT 深色霓虹范式保持一致
   ========================================================= */
:root{
  --bg:#070A14;
  --bg2:#0B1020;
  --panel:#151C33;
  --panel2:#1C2547;
  --stroke:#2C3866;
  --cyan:#00E5FF;
  --magenta:#FF2E97;
  --violet:#9B6CFF;
  --gold:#FFC24D;
  --green:#3DFFA2;
  --red:#FF5C5C;
  --txt:#F2F5FF;
  --sub:#A7B2D4;
  --dim:#66739B;

  --wrap:1180px;
  --r:16px;
  --nav-h:66px;
  --ribbon-h:34px;

  --f: "Inter","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --fm: "SF Mono","JetBrains Mono",Consolas,"Courier New",ui-monospace,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--txt);font-family:var(--f);
  line-height:1.65;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(820px 520px at 12% -6%, rgba(0,229,255,.13), transparent 62%),
    radial-gradient(760px 520px at 92% 8%, rgba(255,46,151,.11), transparent 64%),
    radial-gradient(900px 700px at 50% 108%, rgba(155,108,255,.10), transparent 66%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;position:relative;z-index:2}

/* ---------- 顶部课程条（课程作业署名） ---------- */
.ribbon{position:fixed;top:0;left:0;right:0;height:var(--ribbon-h);z-index:110;
  display:flex;align-items:center;justify-content:center;gap:12px;padding:0 16px;
  background:linear-gradient(90deg,rgba(0,229,255,.15),rgba(255,46,151,.14) 50%,rgba(155,108,255,.15));
  border-bottom:1px solid var(--stroke);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  font-size:12.5px;color:var(--sub);letter-spacing:.3px;white-space:nowrap;overflow:hidden}
.ribbon b{color:var(--cyan);font-weight:700}
.ribbon i{font-style:normal;color:#3d4767}
.ribbon a{flex:none;color:var(--txt);border-bottom:1px solid rgba(0,229,255,.55);transition:.2s}
.ribbon a:hover{color:var(--cyan)}

/* ---------- 滚动进度条 ---------- */
.progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:120;
  background:linear-gradient(90deg,var(--cyan),var(--magenta),var(--gold));
  box-shadow:0 0 14px rgba(0,229,255,.6);transition:width .08s linear}

/* ---------- 导航 ---------- */
.nav{position:fixed;top:var(--ribbon-h);left:0;right:0;height:var(--nav-h);z-index:100;
  background:rgba(7,10,20,.55);backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid transparent;transition:.3s}
.nav.solid{background:rgba(7,10,20,.88);border-bottom-color:rgba(44,56,102,.75)}
.nav-inner{max-width:1280px;margin:0 auto;height:100%;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font:800 13px/1 var(--fm);letter-spacing:.5px;color:#04121c;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  box-shadow:0 0 18px rgba(0,229,255,.35)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:14.5px;letter-spacing:.4px}
.brand-text i{font:600 9.5px/1.3 var(--fm);font-style:normal;letter-spacing:1.6px;color:var(--dim)}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{font-size:13.5px;color:var(--sub);padding:8px 11px;border-radius:9px;
  transition:.22s;white-space:nowrap;position:relative}
.nav-links a:hover{color:var(--txt);background:rgba(44,56,102,.42)}
.nav-links a.active{color:var(--cyan)}
.nav-links a.active::after{content:"";position:absolute;left:11px;right:11px;bottom:2px;height:1.5px;
  background:var(--cyan);border-radius:2px;box-shadow:0 0 8px var(--cyan)}
.nav-links a.nav-cta{color:#04121c;font-weight:700;background:linear-gradient(135deg,var(--cyan),var(--green));
  padding:8px 15px;margin-left:8px}
.nav-links a.nav-cta:hover{filter:brightness(1.12);background:linear-gradient(135deg,var(--cyan),var(--green))}
.nav-links a.nav-cta::after{display:none}
.nav-toggle{display:none;width:40px;height:34px;background:none;border:1px solid var(--stroke);
  border-radius:9px;cursor:pointer;padding:8px 9px;flex-direction:column;justify-content:space-between}
.nav-toggle span{display:block;height:1.8px;background:var(--txt);border-radius:2px;transition:.25s}
.nav-toggle.on span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.on span:nth-child(2){opacity:0}
.nav-toggle.on span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:12px;font-size:14.5px;font-weight:650;
  letter-spacing:.2px;transition:.25s;border:1px solid transparent;cursor:pointer;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--cyan),var(--violet));color:#04121c;
  box-shadow:0 10px 30px rgba(0,229,255,.26)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(0,229,255,.36)}
.btn-ghost{border-color:var(--stroke);color:var(--txt);background:rgba(21,28,51,.55)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(0,229,255,.07)}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;
  padding:calc(var(--ribbon-h) + var(--nav-h) + 56px) 0 70px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.42;transform:scale(1.04)}
.hero-veil{position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,10,20,.96) 0%,rgba(7,10,20,.88) 42%,rgba(7,10,20,.52) 100%)}
.hero-grain{position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(44,56,102,.30) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(44,56,102,.30) 1px,transparent 1px);
  background-size:62px 62px;
  mask-image:radial-gradient(ellipse 78% 68% at 32% 44%,#000 8%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 78% 68% at 32% 44%,#000 8%,transparent 78%)}
.hero-inner{padding-top:14px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:2.4px;
  color:var(--cyan);font-weight:650;text-transform:uppercase;
  border:1px solid rgba(0,229,255,.32);background:rgba(0,229,255,.07);
  padding:7px 16px;border-radius:99px;margin-bottom:26px}
.eyebrow i{color:var(--dim);font-style:normal}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 10px var(--cyan);animation:pulse 2.1s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.78)}}
.hero h1{font-size:clamp(38px,6.4vw,80px);line-height:1.06;letter-spacing:-1.4px;font-weight:800}
.grad{background:linear-gradient(102deg,var(--cyan) 4%,var(--violet) 48%,var(--magenta) 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:26px;max-width:780px;font-size:clamp(15px,1.5vw,17.5px);color:var(--sub);line-height:1.8}
.hero-sub b{color:var(--txt)}
.hero-actions{display:flex;gap:14px;margin-top:36px;flex-wrap:wrap}
.hero-kpi{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:60px;
  border-top:1px solid rgba(44,56,102,.8);padding-top:30px;max-width:1000px}
.hk b{display:block;font-size:clamp(24px,2.7vw,34px);font-weight:800;letter-spacing:-.5px;
  color:var(--cyan);line-height:1.1}
.hk b span{font-size:.62em;margin-left:1px}
.hk:nth-child(2) b{color:var(--magenta)}
.hk:nth-child(3) b{color:var(--gold)}
.hk:nth-child(4) b{color:var(--green)}
.hk i{display:block;font-style:normal;font-size:12.5px;color:var(--dim);margin-top:8px;line-height:1.5}
.scroll-hint{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:3;
  width:24px;height:40px;border:1.5px solid var(--stroke);border-radius:99px;display:grid;place-items:start center;padding-top:7px}
.scroll-hint span{width:3px;height:7px;border-radius:2px;background:var(--cyan);
  animation:sd 1.7s infinite;box-shadow:0 0 8px var(--cyan)}
@keyframes sd{0%{transform:translateY(0);opacity:1}70%{transform:translateY(15px);opacity:0}100%{opacity:0}}

/* ---------- 通用区块 ---------- */
.sec{padding:104px 0;position:relative;z-index:1;scroll-margin-top:calc(var(--ribbon-h) + var(--nav-h))}
#hero{scroll-margin-top:0}
.sec-alt{background:linear-gradient(180deg,rgba(11,16,32,0) 0%,rgba(11,16,32,.85) 12%,rgba(11,16,32,.85) 88%,rgba(11,16,32,0) 100%)}
.sec-head{max-width:900px;margin-bottom:52px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-tag{display:inline-block;font:700 12px/1 var(--fm);letter-spacing:2px;padding:7px 14px;
  border-radius:8px;margin-bottom:20px;border:1px solid;background:rgba(255,255,255,.03)}
.sec-tag.cyan{color:var(--cyan);border-color:rgba(0,229,255,.34);background:rgba(0,229,255,.07)}
.sec-tag.magenta{color:var(--magenta);border-color:rgba(255,46,151,.34);background:rgba(255,46,151,.07)}
.sec-tag.violet{color:var(--violet);border-color:rgba(155,108,255,.34);background:rgba(155,108,255,.07)}
.sec-tag.gold{color:var(--gold);border-color:rgba(255,194,77,.34);background:rgba(255,194,77,.07)}
.sec-tag.green{color:var(--green);border-color:rgba(61,255,162,.34);background:rgba(61,255,162,.07)}
h2{font-size:clamp(26px,3.5vw,42px);line-height:1.22;letter-spacing:-.8px;font-weight:800}
h2 .hl{position:relative;white-space:nowrap}
.hl.cyan{color:var(--cyan)} .hl.magenta{color:var(--magenta)}
.hl.violet{color:var(--violet)} .hl.gold{color:var(--gold)} .hl.green{color:var(--green)}
.lead{margin-top:20px;font-size:16px;color:var(--sub);line-height:1.85;max-width:860px}
.lead.center{margin-left:auto;margin-right:auto}
.lead b{color:var(--txt);font-weight:650}

/* ---------- 卡片 ---------- */
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-5{grid-template-columns:repeat(5,1fr)}
.card{position:relative;background:linear-gradient(160deg,rgba(21,28,51,.92),rgba(15,21,40,.92));
  border:1px solid var(--stroke);border-radius:var(--r);padding:26px;overflow:hidden;
  transition:transform .3s,border-color .3s,box-shadow .3s}
.card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c,var(--cyan));
  opacity:.85;box-shadow:0 0 16px var(--c,var(--cyan))}
.card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--c,var(--cyan)) 55%,var(--stroke));
  box-shadow:0 18px 44px rgba(0,0,0,.45),0 0 0 1px color-mix(in srgb,var(--c,var(--cyan)) 20%,transparent)}
.card h3{font-size:16.5px;font-weight:700;letter-spacing:.2px;margin-bottom:10px}
.card p{font-size:14px;color:var(--sub);line-height:1.78}
.card p b{color:var(--txt)}

/* 痛点卡 */
.pain{padding-top:30px}
.pain-ico{font-size:26px;color:var(--c);margin-bottom:14px;line-height:1}
.pain h3{color:var(--txt)}
.callout{margin-top:24px;border:1px solid color-mix(in srgb,var(--c) 38%,transparent);
  background:linear-gradient(100deg,color-mix(in srgb,var(--c) 10%,transparent),transparent 72%);
  border-radius:var(--r);padding:24px 28px;display:flex;gap:22px;align-items:flex-start;flex-wrap:wrap}
.co-label{flex:none;font:700 12px/1 var(--fm);letter-spacing:1.6px;color:var(--c);
  border:1px solid color-mix(in srgb,var(--c) 42%,transparent);padding:7px 13px;border-radius:8px}
.callout p{font-size:15px;color:var(--sub);line-height:1.8;flex:1;min-width:280px}
.callout p b{color:var(--txt)}

/* TAM 卡 */
.tams{padding-top:34px;text-align:left}
.tam-tag{position:absolute;top:0;right:0;font:700 11px/1 var(--fm);letter-spacing:1.4px;color:var(--c);
  background:color-mix(in srgb,var(--c) 14%,transparent);padding:8px 14px;border-bottom-left-radius:12px}
.tams b{display:block;font-size:clamp(30px,3.4vw,42px);font-weight:800;color:var(--c);letter-spacing:-1px}
.tams b span{font-size:.5em;margin-left:2px}
.tams i{display:block;font-style:normal;font-size:13px;color:var(--txt);font-weight:600;margin:8px 0 12px}
.tams p{font-size:13.5px;color:var(--sub)}

/* ---------- 图表 ---------- */
.chart-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
.chart-card{padding:24px 22px 12px}
.chart-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.chart-head h3{font-size:15.5px;margin:0}
.chart-hint{font-size:11.5px;color:var(--dim);letter-spacing:.3px}
.svg-chart{width:100%;height:auto;display:block}
.gridline line{stroke:rgba(44,56,102,.62);stroke-width:1;stroke-dasharray:3 5}
.axisx{stroke:var(--stroke);stroke-width:1.4}
.axis-label text,.xlab text{font-size:12px;fill:var(--dim);font-family:var(--fm)}
.xsub text{font-size:10.5px;fill:#4d5878;font-family:var(--fm)}
.xlab text{fill:var(--sub);font-size:12.5px;font-family:var(--f)}
.bval text{font-size:19px;font-weight:800;font-family:var(--fm)}
.bars .b{transition:height 1.05s cubic-bezier(.22,1,.36,1),y 1.05s cubic-bezier(.22,1,.36,1)}
.area{opacity:0;transition:opacity .9s ease .45s}
.line{fill:none;stroke:var(--cyan);stroke-width:3;stroke-linecap:round;stroke-linejoin:round;
  stroke-dasharray:520;stroke-dashoffset:520;transition:stroke-dashoffset 1.5s cubic-bezier(.4,0,.2,1);
  filter:drop-shadow(0 0 8px rgba(0,229,255,.55))}
.dots circle{fill:var(--bg2);stroke:var(--cyan);stroke-width:3;opacity:0;transition:opacity .5s ease 1.1s}
.in .area{opacity:1}
.in .line{stroke-dashoffset:0}
.in .dots circle{opacity:1}
.curve{margin-top:18px}
.curve .card h3{color:var(--c)}

/* ---------- 产品 ---------- */
.product-split{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.product-card{padding:30px 28px}
.product-card header{margin-bottom:22px}
.pbadge{display:inline-block;font:700 11px/1 var(--fm);letter-spacing:1.6px;color:var(--c);
  border:1px solid color-mix(in srgb,var(--c) 42%,transparent);background:color-mix(in srgb,var(--c) 12%,transparent);
  padding:7px 13px;border-radius:8px;margin-bottom:14px}
.pbadge.alt{color:var(--cyan);border-color:rgba(0,229,255,.4);background:rgba(0,229,255,.1)}
.product-card h3{font-size:23px;font-weight:800;letter-spacing:-.3px;margin:0}
.product-card h3 i{display:block;font-style:normal;font-size:12.5px;font-weight:500;color:var(--dim);
  letter-spacing:1.4px;margin-top:7px}
.feat{list-style:none;display:flex;flex-direction:column;gap:18px}
.feat li{border-left:2px solid color-mix(in srgb,var(--c) 45%,transparent);padding-left:16px}
.feat b{display:block;font-size:14.5px;color:var(--txt);margin-bottom:6px;font-weight:700}
.feat span{font-size:13.5px;color:var(--sub);line-height:1.75}
.pfoot{margin-top:24px;padding-top:16px;border-top:1px dashed var(--stroke);
  font-size:12px;color:var(--dim);letter-spacing:.3px}

/* ---------- 商业模式 ---------- */
.model-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:18px}
.model-chart,.model-side{padding:28px}
.model-chart h3,.model-side h3{font-size:16px;margin-bottom:22px}
.rev{display:flex;flex-direction:column;gap:16px}
.rev-row{display:grid;grid-template-columns:118px 1fr 44px;align-items:center;gap:14px}
.rev-row b{font-size:13.5px;font-weight:600;color:var(--sub)}
.revbar{height:10px;border-radius:99px;background:rgba(28,37,71,.95);overflow:hidden;
  border:1px solid rgba(44,56,102,.7)}
.revbar i{display:block;height:100%;width:0;border-radius:99px;background:var(--c);
  box-shadow:0 0 12px color-mix(in srgb,var(--c) 70%,transparent);
  transition:width 1.2s cubic-bezier(.22,1,.36,1)}
.in .revbar i{width:var(--w)}
.rev-row em{font:800 14px/1 var(--fm);font-style:normal;color:var(--c);text-align:right}
.mini{margin-top:20px;font-size:12.5px;color:var(--dim);line-height:1.7;
  border-top:1px dashed var(--stroke);padding-top:16px}
.mini.center{text-align:center}
.ue{display:flex;flex-direction:column;gap:1px;background:var(--stroke);border-radius:12px;overflow:hidden;
  border:1px solid var(--stroke)}
.ue-i{display:flex;justify-content:space-between;align-items:center;gap:14px;
  background:rgba(11,16,32,.75);padding:13px 16px}
.ue-i i{font-style:normal;font-size:13px;color:var(--sub)}
.ue-i b{font-size:14px;font-weight:750;color:var(--green);font-family:var(--fm);white-space:nowrap}
.versus{margin-top:22px}
.vs-head,.vs-row{display:grid;grid-template-columns:1fr 1fr;gap:1px}
.vs-head{margin-bottom:8px}
.vs-head span{font:700 11.5px/1 var(--fm);letter-spacing:.8px;color:var(--dim);padding-bottom:4px}
.vs-head span:last-child{color:var(--green)}
.vs-row{margin-bottom:1px}
.vs-row em{font-style:normal;font-size:12.5px;padding:10px 12px;line-height:1.5}
.vs-row em:first-child{color:var(--dim);background:rgba(28,37,71,.42);border-radius:8px 0 0 8px}
.vs-row em:last-child{color:var(--txt);background:rgba(61,255,162,.09);border-radius:0 8px 8px 0}

/* ---------- 产业链 ---------- */
.chain{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:22px}
.chain-col{position:relative;border:1px solid var(--stroke);border-radius:var(--r);padding:26px 24px;
  background:linear-gradient(165deg,rgba(21,28,51,.9),rgba(13,18,36,.9));transition:.3s}
.chain-col::after{content:"";position:absolute;left:24px;right:24px;top:0;height:3px;background:var(--c);
  border-radius:0 0 3px 3px;opacity:.9;box-shadow:0 0 16px var(--c)}
.chain-col.active{transform:scale(1.035);
  border-color:color-mix(in srgb,var(--c) 55%,transparent);
  box-shadow:0 0 0 1px color-mix(in srgb,var(--c) 26%,transparent),0 22px 52px rgba(255,46,151,.18)}
.chain-num{display:inline-block;font:700 11px/1 var(--fm);letter-spacing:1.4px;color:var(--c);margin-bottom:14px}
.chain-col h4{font-size:17px;font-weight:750;margin-bottom:12px}
.chain-col p{font-size:13.5px;color:var(--sub);line-height:1.75}
.chain-col i{display:block;margin-top:16px;font-style:normal;font-size:12.5px;font-weight:650;color:var(--c);
  border-top:1px dashed var(--stroke);padding-top:14px}

/* ---------- 表格 ---------- */
.table-card{padding:28px}
.table-card h3{font-size:16px;margin-bottom:20px}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.cmp{width:100%;border-collapse:collapse;min-width:680px}
table.cmp th{text-align:left;font:700 12px/1 var(--fm);letter-spacing:.9px;color:var(--dim);
  padding:13px 16px;border-bottom:1px solid var(--stroke);white-space:nowrap}
table.cmp td{padding:16px;font-size:13.5px;color:var(--sub);line-height:1.7;
  border-bottom:1px solid rgba(44,56,102,.5)}
table.cmp tbody tr{transition:.22s}
table.cmp tbody tr:hover{background:rgba(44,56,102,.24)}
table.cmp td:first-child{color:var(--txt);font-weight:650}
table.cmp tr.hl-row{background:linear-gradient(90deg,rgba(0,229,255,.1),rgba(255,46,151,.05),transparent)}
table.cmp tr.hl-row td:first-child{color:var(--cyan)}
table.cmp tr.hl-row td:last-child{color:var(--txt)}
table.cmp td.cy{color:var(--cyan)} table.cmp td.mg{color:var(--magenta)} table.cmp td.gd{color:var(--gold)}
table.cmp td.stars{color:var(--gold);font-family:var(--fm);letter-spacing:1px}
.gtm-grid{margin-top:18px}

/* ---------- 路线图 ---------- */
.road{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;position:relative}
.road-item{position:relative;border:1px solid var(--stroke);border-radius:var(--r);padding:28px 26px;
  background:linear-gradient(165deg,rgba(21,28,51,.92),rgba(13,18,36,.92));transition:.3s}
.road-item:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--c) 50%,transparent)}
.road-item::before{content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;
  background:var(--c);border-radius:3px;box-shadow:0 0 16px var(--c)}
.road-time{display:inline-block;font:700 12px/1 var(--fm);letter-spacing:1.4px;color:var(--c);
  background:color-mix(in srgb,var(--c) 12%,transparent);padding:7px 13px;border-radius:8px;margin-bottom:16px}
.road-item h3{font-size:19px;font-weight:750;margin-bottom:12px}
.road-item p{font-size:13.5px;color:var(--sub);line-height:1.78}
.road-item ul{list-style:none;margin-top:18px;display:flex;flex-direction:column;gap:9px;
  border-top:1px dashed var(--stroke);padding-top:16px}
.road-item li{font-size:12.5px;color:var(--sub);padding-left:18px;position:relative}
.road-item li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;
  background:var(--c);box-shadow:0 0 8px var(--c)}
.kpi-strip{margin-top:18px;display:grid;grid-template-columns:auto auto auto 1fr;gap:1px;
  background:var(--stroke);border:1px solid var(--stroke);border-radius:var(--r);overflow:hidden}
.ks{background:rgba(11,16,32,.8);padding:20px 24px}
.ks i{display:block;font-style:normal;font-size:12px;color:var(--dim);letter-spacing:.6px;margin-bottom:7px}
.ks b{font-size:15.5px;font-weight:750;color:var(--txt)}
.ks:last-child b{font-size:13.5px;color:var(--sub);font-weight:600;line-height:1.6}

/* ---------- 风险 ---------- */
.risk{padding-top:30px}
.rn{display:block;font:800 26px/1 var(--fm);color:var(--c);opacity:.85;margin-bottom:14px}
.risk h3{font-size:15.5px}
.risk em{display:block;margin-top:16px;font-style:normal;font-size:12.5px;color:var(--sub);
  border-top:1px dashed var(--stroke);padding-top:14px;line-height:1.72}
.risk em::first-letter{color:var(--c)}

/* ---------- 团队 ---------- */
.person{text-align:center;padding:30px 20px}
.person::before{width:100%;height:3px;left:0;right:0;top:0;bottom:auto}
.avatar{width:60px;height:60px;margin:0 auto 16px;border-radius:18px;display:grid;place-items:center;
  font:800 16px/1 var(--fm);color:#04121c;background:linear-gradient(135deg,var(--c),color-mix(in srgb,var(--c) 45%,#ffffff));
  box-shadow:0 10px 26px color-mix(in srgb,var(--c) 32%,transparent)}
.person h3{font-size:14.5px;margin-bottom:8px}
.person p{font-size:12.5px;line-height:1.72}

/* ---------- 融资 ---------- */
.raise{position:relative;overflow:hidden;padding:110px 0 96px}
.raise-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.3}
.raise-veil{position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,20,.94),rgba(7,10,20,.8) 45%,rgba(7,10,20,.97))}
.raise-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:18px;margin-top:14px}
.raise-grid .card{padding:28px}
.raise-grid h3{font-size:16px;margin-bottom:22px}
.mile{list-style:none;display:flex;flex-direction:column;gap:16px}
.mile li{display:grid;grid-template-columns:42px 1fr;gap:14px;align-items:start}
.mile b{font:800 12.5px/1 var(--fm);color:var(--gold);border:1px solid rgba(255,194,77,.4);
  background:rgba(255,194,77,.1);border-radius:8px;padding:8px 0;text-align:center}
.mile span{font-size:13.5px;color:var(--sub);line-height:1.7}
.raise-cta{margin-top:44px;text-align:center;
  border-top:1px solid rgba(44,56,102,.8);padding-top:44px}
.rc-quote{font-size:clamp(19px,2.5vw,28px);font-weight:750;line-height:1.5;letter-spacing:-.3px}
.rc-quote b{font-weight:800}
.rc-quote .cy{color:var(--cyan)} .rc-quote .mg{color:var(--magenta)}
.rc-actions{display:flex;gap:14px;justify-content:center;margin-top:30px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.foot{position:relative;z-index:1;border-top:1px solid var(--stroke);
  background:linear-gradient(180deg,rgba(11,16,32,.6),rgba(7,10,20,1));padding:56px 0 30px}
.foot-inner{display:grid;grid-template-columns:1fr 1.6fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:11px;font-size:15px;font-weight:750;margin-bottom:12px}
.foot-inner > div:first-child p{font-size:13px;color:var(--dim)}
.foot-note p{font-size:12px;color:var(--dim);line-height:1.8;margin-bottom:12px}
.foot-note b{color:var(--sub)}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:38px;padding-top:22px;border-top:1px solid rgba(44,56,102,.6);
  font-size:11.5px;color:#4d5878;letter-spacing:.4px}

/* ---------- 滚动揭示 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .75s cubic-bezier(.22,1,.36,1),
  transform .75s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-5{grid-template-columns:repeat(3,1fr)}
  .chart-row{grid-template-columns:1fr}
  .model-grid,.raise-grid,.product-split,.foot-inner{grid-template-columns:1fr}
  .kpi-strip{grid-template-columns:repeat(2,1fr)}
  .chain-col.active{transform:none}
}
@media (max-width:820px){
  .nav-links{position:fixed;top:calc(var(--ribbon-h) + var(--nav-h));left:0;right:0;flex-direction:column;align-items:stretch;
    gap:4px;padding:16px 20px 24px;background:rgba(7,10,20,.98);backdrop-filter:blur(20px);
    border-bottom:1px solid var(--stroke);transform:translateY(-130%);transition:transform .35s cubic-bezier(.4,0,.2,1)}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:13px 14px;font-size:15px}
  .nav-links a.nav-cta{margin:8px 0 0;text-align:center;justify-content:center}
  .nav-toggle{display:flex}
  .sec{padding:78px 0}
  .grid-3,.grid-4,.grid-5,.chain,.road{grid-template-columns:1fr}
  .hero{min-height:auto;padding-top:calc(var(--ribbon-h) + var(--nav-h) + 46px)}
  .hero-kpi{grid-template-columns:repeat(2,1fr);gap:22px 14px;margin-top:44px}
  .rev-row{grid-template-columns:100px 1fr 40px;gap:10px}
  .raise-grid{gap:14px}
}
@media (max-width:520px){
  .wrap{padding:0 18px}
  .card{padding:22px}
  .hero-actions .btn{flex:1;min-width:140px}
  .kpi-strip{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:700px){
  .ribbon{font-size:10.5px;gap:8px;padding:0 10px}
  .ribbon .rb-long,.ribbon .rb-sub,.ribbon a{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}

/* =========================================================
   多页官网扩展组件（首页 / 产品 / 定价 / 案例 / 关于 / 联系 / BP）
   ========================================================= */

/* ---------- 子页 Hero ---------- */
.page-hero{position:relative;padding:calc(var(--ribbon-h) + var(--nav-h) + 76px) 0 64px;overflow:hidden;
  border-bottom:1px solid rgba(44,56,102,.6)}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.26}
.page-hero-veil{position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,20,.82) 0%,rgba(7,10,20,.94) 62%,var(--bg) 100%)}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{font-size:clamp(30px,4.6vw,54px);line-height:1.14;letter-spacing:-1.1px;font-weight:800}
.page-hero .lead{margin-top:18px;font-size:16.5px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--dim);margin-bottom:20px}
.breadcrumb a{color:var(--sub)} .breadcrumb a:hover{color:var(--cyan)}
.breadcrumb i{font-style:normal;color:#3d4767}

/* ---------- 区块秒级导航（BP 页） ---------- */
.subnav{position:sticky;top:calc(var(--ribbon-h) + var(--nav-h));z-index:90;
  background:rgba(7,10,20,.9);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--stroke)}
.subnav-inner{max-width:var(--wrap);margin:0 auto;padding:0 24px;display:flex;gap:4px;overflow-x:auto;
  scrollbar-width:none}
.subnav-inner::-webkit-scrollbar{display:none}
.subnav a{flex:none;font-size:13px;color:var(--sub);padding:14px 12px;white-space:nowrap;
  border-bottom:2px solid transparent;transition:.22s}
.subnav a:hover{color:var(--txt)}
.subnav a.active{color:var(--cyan);border-bottom-color:var(--cyan)}

/* ---------- 特性行（图 / 文交替） ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:44px 0}
.feature-row.rev .fr-media{order:2}
.fr-media{position:relative;border-radius:var(--r);overflow:hidden;border:1px solid var(--stroke);
  box-shadow:0 26px 60px rgba(0,0,0,.5)}
.fr-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.fr-media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,20,.12),rgba(7,10,20,.55))}
.fr-tagline{position:absolute;left:18px;bottom:16px;right:18px;z-index:2;font-size:12.5px;color:var(--sub)}
.fr-body h3{font-size:clamp(20px,2.4vw,28px);font-weight:800;letter-spacing:-.5px;margin:14px 0 16px}
.fr-body p{font-size:15px;color:var(--sub);line-height:1.85}
.fr-body ul{list-style:none;margin-top:22px;display:flex;flex-direction:column;gap:14px}
.fr-body li{position:relative;padding-left:26px;font-size:14px;color:var(--sub);line-height:1.75}
.fr-body li::before{content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:2px;
  background:var(--c,var(--cyan));box-shadow:0 0 10px var(--c,var(--cyan))}
.fr-body li b{color:var(--txt)}

/* ---------- 工作流步骤条 ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:st}
.flow-step{position:relative;border:1px solid var(--stroke);border-radius:14px;padding:20px 18px;
  background:linear-gradient(165deg,rgba(21,28,51,.9),rgba(13,18,36,.9));transition:.3s}
.flow-step:hover{border-color:rgba(0,229,255,.5);transform:translateY(-3px)}
.flow-step::before{counter-increment:st;content:"0" counter(st);
  font:800 12px/1 var(--fm);color:var(--cyan);display:block;margin-bottom:12px;letter-spacing:1px}
.flow-step h4{font-size:14.5px;font-weight:700;margin-bottom:8px}
.flow-step p{font-size:12.5px;color:var(--sub);line-height:1.7}

/* ---------- 定价 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}
.price-card{position:relative;border:1px solid var(--stroke);border-radius:var(--r);padding:30px 26px;
  background:linear-gradient(165deg,rgba(21,28,51,.92),rgba(13,18,36,.92));transition:.3s}
.price-card.feat-tier{border-color:rgba(0,229,255,.55);
  box-shadow:0 0 0 1px rgba(0,229,255,.22),0 26px 64px rgba(0,229,255,.14);transform:scale(1.025)}
.price-card:hover{transform:translateY(-4px)}
.price-card.feat-tier:hover{transform:translateY(-6px) scale(1.025)}
.tier-badge{position:absolute;top:-11px;left:26px;font:700 11px/1 var(--fm);letter-spacing:1.2px;
  color:#04121c;background:linear-gradient(135deg,var(--cyan),var(--green));padding:6px 12px;border-radius:7px}
.price-card h3{font-size:15px;font-weight:750;letter-spacing:.6px;color:var(--sub)}
.price-amount{margin:16px 0 6px;display:flex;align-items:baseline;gap:6px}
.price-amount b{font-size:clamp(30px,3.6vw,40px);font-weight:800;letter-spacing:-1.4px;
  font-family:var(--fm);color:var(--txt)}
.price-amount i{font-style:normal;font-size:13px;color:var(--dim)}
.price-desc{font-size:13px;color:var(--sub);line-height:1.7;min-height:44px}
.price-list{list-style:none;margin-top:22px;padding-top:20px;border-top:1px dashed var(--stroke);
  display:flex;flex-direction:column;gap:12px}
.price-list li{font-size:13.5px;color:var(--sub);padding-left:24px;position:relative;line-height:1.65}
.price-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--green);font-weight:800}
.price-list li.no{color:#4d5878}
.price-list li.no::before{content:"—";color:#3d4767}
.price-card .btn{width:100%;margin-top:24px}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;gap:12px}
.faq details{border:1px solid var(--stroke);border-radius:14px;background:rgba(21,28,51,.7);
  overflow:hidden;transition:.25s}
.faq details[open]{border-color:rgba(0,229,255,.42);background:rgba(21,28,51,.95)}
.faq summary{cursor:pointer;list-style:none;padding:19px 22px;font-size:15px;font-weight:650;
  display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:700 20px/1 var(--fm);color:var(--cyan);transition:.25s;flex:none}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{padding:0 22px 20px;font-size:14px;color:var(--sub);line-height:1.8}

/* ---------- 客户案例 ---------- */
.case-row{display:grid;grid-template-columns:1.05fr 1.4fr;gap:32px;align-items:center;
  padding:36px 0;border-bottom:1px solid rgba(44,56,102,.45)}
.case-row:last-child{border-bottom:0}
.case-media{border-radius:var(--r);overflow:hidden;border:1px solid var(--stroke)}
.case-media img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
.case-body .case-kicker{font:700 11.5px/1 var(--fm);letter-spacing:1.4px;color:var(--c,var(--cyan))}
.case-body h3{font-size:clamp(19px,2.2vw,25px);font-weight:800;margin:12px 0 14px;letter-spacing:-.4px}
.case-body p{font-size:14.5px;color:var(--sub);line-height:1.82}
.case-metrics{display:flex;gap:34px;margin-top:24px;flex-wrap:wrap}
.case-metrics div b{display:block;font:800 26px/1 var(--fm);color:var(--c,var(--cyan));letter-spacing:-.6px}
.case-metrics div i{display:block;font-style:normal;font-size:12px;color:var(--dim);margin-top:8px}

/* ---------- 联系方式 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:22px;align-items:start}
.info-list{list-style:none;display:flex;flex-direction:column;gap:14px}
.info-list li{border:1px solid var(--stroke);border-radius:14px;padding:18px 20px;
  background:rgba(21,28,51,.7);display:flex;gap:14px;align-items:flex-start}
.info-list .ico{width:38px;height:38px;flex:none;border-radius:11px;display:grid;place-items:center;
  font:700 14px/1 var(--fm);color:#04121c;background:linear-gradient(135deg,var(--cyan),var(--violet))}
.info-list b{display:block;font-size:13.5px;margin-bottom:4px}
.info-list span{font-size:13px;color:var(--sub);line-height:1.6}
.form-card{border:1px solid var(--stroke);border-radius:var(--r);padding:28px;
  background:linear-gradient(165deg,rgba(21,28,51,.92),rgba(13,18,36,.92))}
.field{margin-bottom:16px}
.field label{display:block;font-size:12.5px;color:var(--sub);margin-bottom:8px;letter-spacing:.4px}
.field input,.field select,.field textarea{width:100%;background:rgba(7,10,20,.8);
  border:1px solid var(--stroke);border-radius:11px;padding:13px 15px;font-size:14px;color:var(--txt);
  font-family:var(--f);transition:.22s;outline:none}
.field textarea{min-height:118px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(0,229,255,.13)}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--sub) 50%),
  linear-gradient(135deg,var(--sub) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{font-size:12px;color:var(--dim);margin-top:14px;line-height:1.7}

/* ---------- CTA 横幅 ---------- */
.cta-band{position:relative;overflow:hidden;border:1px solid var(--stroke);border-radius:22px;
  padding:52px 46px;background:linear-gradient(115deg,rgba(0,229,255,.14),rgba(255,46,151,.11) 52%,rgba(155,108,255,.14));
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h3{font-size:clamp(21px,2.7vw,31px);font-weight:800;letter-spacing:-.6px;
  max-width:660px;line-height:1.32}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band::after{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:44px 44px}

/* ---------- 数字横条 ---------- */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--stroke);
  border:1px solid var(--stroke);border-radius:var(--r);overflow:hidden}
.stat-band div{background:rgba(11,16,32,.82);padding:26px 24px}
.stat-band b{display:block;font:800 clamp(24px,2.8vw,34px)/1.1 var(--fm);letter-spacing:-1px;color:var(--cyan)}
.stat-band div:nth-child(2) b{color:var(--magenta)}
.stat-band div:nth-child(3) b{color:var(--gold)}
.stat-band div:nth-child(4) b{color:var(--green)}
.stat-band i{display:block;font-style:normal;font-size:12.5px;color:var(--dim);margin-top:10px;line-height:1.55}

/* ---------- 关于页 ---------- */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.mile-line{position:relative;padding-left:34px}
.mile-line::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:1.5px;
  background:linear-gradient(180deg,var(--cyan),var(--magenta),var(--gold))}
.mile-item{position:relative;padding:0 0 34px}
.mile-item::before{content:"";position:absolute;left:-30px;top:7px;width:11px;height:11px;border-radius:50%;
  background:var(--bg);border:2px solid var(--cyan);box-shadow:0 0 12px var(--cyan)}
.mile-item b{font:700 12px/1 var(--fm);letter-spacing:1px;color:var(--cyan)}
.mile-item h4{font-size:16px;font-weight:700;margin:10px 0 8px}
.mile-item p{font-size:13.5px;color:var(--sub);line-height:1.75}

/* ---------- 响应式补充 ---------- */
@media (max-width:1080px){
  .price-grid{grid-template-columns:1fr}
  .price-card.feat-tier{transform:none}
  .price-card.feat-tier:hover{transform:translateY(-4px)}
  .feature-row{grid-template-columns:1fr;gap:28px;padding:32px 0}
  .feature-row.rev .fr-media{order:0}
  .flow{grid-template-columns:repeat(3,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .case-row{grid-template-columns:1fr;gap:22px}
  .value-grid{grid-template-columns:1fr}
}
@media (max-width:820px){
  .flow{grid-template-columns:1fr 1fr}
  .stat-band{grid-template-columns:1fr 1fr}
  .page-hero{padding-top:calc(var(--ribbon-h) + var(--nav-h) + 52px)}
  .cta-band{padding:34px 24px}
  .case-metrics{gap:22px}
}
@media (max-width:520px){
  .flow{grid-template-columns:1fr}
  .stat-band{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .subnav-inner{padding:0 16px}
}

/* ---------- 小组成员名单 ---------- */
.members{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin:10px 0 12px}
.members b{font-size:clamp(22px,3vw,32px);font-weight:800;letter-spacing:-.6px;color:var(--cyan)}
.members em{font-style:normal;color:var(--dim);font-size:18px}