/* ============================================================
   智衍科技 ZHIYAN·AI — 官网设计系统
   主题：指挥中枢 / Agent 编排（Mission Control）
   双引擎配色：蓝 = 数字世界·AI Agent / 橙 = 物理世界·具身智能
   ============================================================ */

:root{
  --bg:        #070B14;
  --bg-2:      #0B1120;
  --panel:     #0E1526;
  --panel-2:   #111A30;
  --line:      rgba(148,170,220,.14);
  --line-str:  rgba(148,170,220,.28);

  --blue:      #4C7BFF;
  --blue-deep: #2F5BEE;
  --blue-soft: #7A9BFF;
  --violet:    #8FA8FF;
  --orange:    #FF8A2A;
  --green:     #3DD68C;

  --text:      #E9EEF8;
  --text-2:    #A7B2C8;
  --text-3:    #67728F;

  --font-h: "Bahnschrift", "DIN Alternate", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  --font-b: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Segoe UI", sans-serif;
  --font-m: "Cascadia Mono", "Consolas", "JetBrains Mono", monospace;

  --wrap: 1200px;
  --r: 14px;
  --shadow: 0 18px 50px -18px rgba(0,0,0,.55);
}

/* ---------- 基础 ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-b);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:rgba(76,123,255,.35);color:#fff}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:#1d2740;border-radius:5px;border:2px solid var(--bg)}
::-webkit-scrollbar-thumb:hover{background:#2b3a63}

.mono{font-family:var(--font-m);letter-spacing:.04em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
.hide-sm{display:inline}
b{font-weight:700}

/* 噪点纹理 */
.grain{
  position:fixed;inset:0;z-index:3000;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}

/* 滚动进度条 */
.scroll-progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:2000;background:transparent}
.scroll-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue),var(--orange));transition:width .1s linear}

/* 渐变文字 */
.grad{
  background:linear-gradient(100deg,var(--blue) 10%,var(--blue-soft) 45%,var(--orange) 95%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.grad-blue{background:linear-gradient(100deg,var(--blue),var(--blue-soft));-webkit-background-clip:text;background-clip:text;color:transparent}
.grad-orange{background:linear-gradient(100deg,#FFB25E,var(--orange));-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;justify-content:center;
  font-family:var(--font-b);font-weight:600;font-size:15px;
  padding:.72em 1.7em;border-radius:10px;cursor:pointer;
  text-decoration:none;border:1px solid transparent;white-space:nowrap;
  transition:transform .25s cubic-bezier(.2,.7,.3,1.4),box-shadow .25s,background .25s,border-color .25s,color .25s;
}
.btn:active{transform:scale(.96)}
.btn-primary{
  background:linear-gradient(135deg,#4C7BFF,#2F5BEE);
  color:#fff;box-shadow:0 8px 26px -8px rgba(76,123,255,.55),inset 0 1px 0 rgba(255,255,255,.18);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px -8px rgba(76,123,255,.7),inset 0 1px 0 rgba(255,255,255,.18)}
.btn-ghost{
  background:rgba(148,170,220,.05);color:var(--text);border-color:var(--line-str);
  backdrop-filter:blur(6px);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--blue);color:#fff;background:rgba(76,123,255,.1)}
.btn-lg{padding:.9em 2.1em;font-size:16px;border-radius:12px}
.btn-sm{padding:.55em 1.3em;font-size:14px}
.btn-block{width:100%}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1500;
  transition:background .35s,border-color .35s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(7,11,20,.82);
  border-bottom-color:var(--line);
}
/* 注意：backdrop-filter 会让 .nav 成为「backdrop root」，安卓浏览器下会破坏其内部 fixed 菜单面板
   （.nav-links）的背景合成，表现为滚动后菜单栏透明。毛玻璃因此仅保留在桌面端
   （≥861px 时菜单为普通文档流布局，不受影响） */
@media (min-width:861px){
  .nav.scrolled{
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  }
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;color:var(--text)}
.brand-mark{color:var(--blue);display:grid;place-items:center;filter:drop-shadow(0 0 10px rgba(76,123,255,.45))}
.brand-text{font-family:var(--font-h);font-weight:700;font-size:20px;letter-spacing:.02em;display:flex;align-items:baseline;gap:.55em}
.brand-text small{font-family:var(--font-m);font-size:10px;letter-spacing:.28em;color:var(--text-3);font-weight:400}
.nav-links{display:flex;align-items:center;gap:1.6rem}
.nav-link{
  color:var(--text-2);text-decoration:none;font-size:14px;font-weight:500;
  position:relative;padding:.3em 0;transition:color .25s;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;
  background:linear-gradient(90deg,var(--blue),var(--orange));
  transition:right .3s cubic-bezier(.2,.7,.3,1);
}
.nav-link:hover,.nav-link.active{color:#fff}
.nav-link:hover::after,.nav-link.active::after{right:0}
.nav-cta{padding:.55em 1.3em;font-size:14px}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-burger span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s,opacity .3s}
.nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- HERO ---------- */
.hero{
  position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;
  overflow:hidden;padding:140px 0 90px;
}
.hero canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero-grid{
  position:absolute;inset:0;z-index:0;opacity:.5;pointer-events:none;
  background-image:
    linear-gradient(rgba(148,170,220,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(148,170,220,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 40%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 40%,#000 30%,transparent 78%);
}
.hero-glow{position:absolute;border-radius:50%;filter:blur(90px);z-index:0;pointer-events:none}
.hero-glow-a{width:620px;height:620px;background:rgba(76,123,255,.16);top:-180px;left:-140px}
.hero-glow-b{width:520px;height:520px;background:rgba(255,138,42,.09);bottom:-160px;right:-120px}
.hero-inner{position:relative;z-index:2}
.hero-inner::before{
  content:"";position:absolute;top:-40px;left:0;width:120px;height:4px;
  background:linear-gradient(90deg,var(--blue),var(--orange));border-radius:2px;opacity:.8;
}
.eyebrow{
  font-family:var(--font-m);font-size:12.5px;letter-spacing:.22em;color:var(--blue-soft);
  display:flex;align-items:center;gap:1em;text-transform:uppercase;
}
.eyebrow::after{content:"";width:64px;height:1px;background:linear-gradient(90deg,var(--line-str),transparent)}
.eyebrow .mono{color:var(--orange);font-size:11px}
.hero-title{
  font-family:var(--font-h);font-weight:700;font-size:clamp(2.5rem,5.6vw,4.4rem);
  line-height:1.22;letter-spacing:.01em;margin:1.1rem 0 1.4rem;text-wrap:balance;
}
.hero-sub{color:var(--text-2);font-size:clamp(15px,1.4vw,17.5px);max-width:760px;line-height:1.9}
.hero-sub b{color:var(--text)}
.hero-cta{display:flex;gap:1rem;margin-top:2.2rem;flex-wrap:wrap}
.hero-trust{
  list-style:none;display:flex;gap:2.4rem;margin-top:3rem;padding-top:1.6rem;
  border-top:1px solid var(--line);flex-wrap:wrap;
}
.hero-trust li{color:var(--text-2);font-size:13.5px;display:flex;align-items:center;gap:.6em}
.hero-trust .mono{color:var(--orange);font-size:11.5px}

/* Hero 悬浮状态芯片 */
.hero-chip{
  position:absolute;z-index:1;display:flex;align-items:center;gap:.55em;
  font-family:var(--font-m);font-size:11.5px;letter-spacing:.06em;color:var(--text-2);
  background:rgba(14,21,38,.72);border:1px solid var(--line);
  padding:.5em 1em;border-radius:999px;backdrop-filter:blur(8px);
  box-shadow:0 8px 24px -8px rgba(0,0,0,.6);pointer-events:none;
  animation:chipFloat 7s ease-in-out infinite;
}
.hero-chip b{color:var(--green)}
.chip-orbit{top:24%;left:6%;animation-delay:0s}
.chip-mid{top:46%;right:7%;animation-delay:-2.4s}
.chip-right{top:14%;right:16%;animation-delay:-4.6s}
.chip-low{bottom:16%;left:42%;animation-delay:-3.4s}
@keyframes chipFloat{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-14px)}
}
.dot{width:7px;height:7px;border-radius:50%;flex:none}
.dot-blue{background:var(--blue);box-shadow:0 0 0 0 rgba(76,123,255,.6);animation:pulse 2.2s infinite}
.dot-orange{background:var(--orange);box-shadow:0 0 0 0 rgba(255,138,42,.6);animation:pulse 2.2s infinite}
.dot-green{background:var(--green);box-shadow:0 0 0 0 rgba(61,214,140,.6);animation:pulse 2.2s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(76,123,255,.45)}
  70%{box-shadow:0 0 0 9px transparent}
  100%{box-shadow:0 0 0 0 transparent}
}

.hero-scroll{
  position:absolute;left:50%;bottom:34px;transform:translateX(-50%);z-index:2;
  display:flex;flex-direction:column;align-items:center;gap:.5rem;
  font-family:var(--font-m);font-size:9.5px;letter-spacing:.4em;color:var(--text-3);
}
.hero-scroll i{width:1px;height:44px;background:linear-gradient(180deg,var(--blue-soft),transparent);overflow:hidden;position:relative}
.hero-scroll i::after{content:"";position:absolute;top:-30%;left:0;width:100%;height:30%;background:#fff;animation:scrolldrop 2s ease-in-out infinite}
@keyframes scrolldrop{to{top:130%}}

/* ---------- Marquee ---------- */
.marquee{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--bg-2);overflow:hidden;padding:15px 0;position:relative;z-index:1;
}
.marquee::before,.marquee::after{
  content:"";position:absolute;top:0;bottom:0;width:120px;z-index:2;pointer-events:none;
}
.marquee::before{left:0;background:linear-gradient(90deg,var(--bg),transparent)}
.marquee::after{right:0;background:linear-gradient(-90deg,var(--bg),transparent)}
.marquee-track{display:flex;align-items:center;gap:2.2rem;width:max-content;padding-right:2.2rem;animation:marquee 42s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-track span{font-family:var(--font-m);font-size:12.5px;letter-spacing:.1em;color:var(--text-3);white-space:nowrap}
.marquee-track span::before{content:"◈ ";color:var(--blue);opacity:.6}
.marquee-track b{color:var(--orange);font-size:9px;opacity:.5}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- 通用 Section ---------- */
.section{padding:110px 0;position:relative}
.section-dark{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:820px;margin-bottom:3rem}
.sec-head h2{
  font-family:var(--font-h);font-weight:700;font-size:clamp(1.7rem,3.4vw,2.6rem);
  line-height:1.35;margin-top:1rem;letter-spacing:.01em;text-wrap:balance;
}
.sec-lead{color:var(--text-2);font-size:16.5px;max-width:860px;line-height:2;margin-bottom:3rem}
.sec-lead b{color:var(--text)}
.sec-head .eyebrow{margin-bottom:.4rem}

/* ---------- 01 公司简介 ---------- */
.method{
  display:flex;align-items:center;gap:1.8rem;flex-wrap:wrap;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:1.05rem 1.6rem;margin-bottom:1.6rem;
}
.method-label{font-size:11.5px;letter-spacing:.22em;color:var(--text-3)}
.method-chain{display:flex;align-items:center;gap:.85rem;flex-wrap:wrap}
.method-node{
  font-family:var(--font-m);font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--blue-soft);
  padding:.55em 1.15em;border:1px solid rgba(76,123,255,.32);border-radius:8px;background:rgba(76,123,255,.06);
}
.method-node:last-child{color:#FFB25E;border-color:rgba(255,138,42,.36);background:rgba(255,138,42,.06)}
.method-chain i{width:30px;height:1px;background:linear-gradient(90deg,var(--blue),var(--orange));position:relative;flex:none}
.method-chain i::after{content:"";position:absolute;right:-1px;top:-2.5px;width:6px;height:6px;border-radius:50%;background:var(--orange);box-shadow:0 0 8px var(--orange)}
.pillar-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.pillar{
  position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:2rem 1.9rem;overflow:hidden;transition:transform .35s,border-color .35s,box-shadow .35s;
}
.pillar::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;transition:opacity .35s;
  background:radial-gradient(340px 180px at 90% -10%,rgba(76,123,255,.13),transparent 70%);
}
.pillar:hover{transform:translateY(-6px);border-color:rgba(255,138,42,.35);box-shadow:var(--shadow)}
.pillar:hover::before{opacity:1}
.pillar-ic{
  display:grid;place-items:center;width:50px;height:50px;border-radius:12px;margin-bottom:1.2rem;
  color:var(--blue);background:rgba(76,123,255,.09);border:1px solid rgba(76,123,255,.25);
  transition:color .3s,background .3s,border-color .3s;
}
.pillar:hover .pillar-ic{color:var(--orange);background:rgba(255,138,42,.09);border-color:rgba(255,138,42,.3)}
.pillar h3{font-family:var(--font-h);font-size:1.22rem;font-weight:700;margin-bottom:.55rem}
.pillar p{color:var(--text-2);font-size:14px;line-height:1.8}

/* ---------- 02 三层架构 ---------- */
.arch-stack{position:relative;max-width:1000px}
.arch-layer{
  display:grid;grid-template-columns:56px 1fr;gap:0;border-radius:var(--r);
  background:var(--panel);border:1px solid var(--line);overflow:hidden;
  transition:transform .35s,border-color .35s;
}
.arch-layer:hover{transform:translateX(8px);border-color:var(--line-str)}
.arch-layer-bar{
  display:flex;align-items:center;justify-content:center;writing-mode:vertical-rl;
  background:rgba(76,123,255,.06);
  background:linear-gradient(180deg,color-mix(in srgb,var(--bar) 26%,transparent),rgba(7,11,20,.2));
  border-right:1px solid var(--line);position:relative;
}
.arch-layer-bar .mono{
  writing-mode:vertical-rl;transform:rotate(180deg);font-size:11px;letter-spacing:.35em;color:var(--bar);
  text-transform:uppercase;font-weight:700;
}
.arch-layer-bar::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--bar);
  box-shadow:0 0 18px var(--bar);
}
.arch-layer-body{padding:1.8rem 2.2rem 1.8rem 1.9rem}
.arch-layer-head{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.arch-layer-head h3{font-family:var(--font-h);font-size:1.28rem;font-weight:700}
.arch-layer-sub{color:var(--text-3);font-size:14px;margin:.35rem 0 1.1rem}
.arch-chips{display:flex;gap:.7rem;flex-wrap:wrap}
.chip{
  font-size:12.5px;padding:.42em 1em;border-radius:999px;border:1px solid var(--line);
  color:var(--text-2);background:var(--panel-2);
}
.chip-blue{border-color:rgba(76,123,255,.3);color:var(--blue-soft);background:rgba(76,123,255,.06)}
.chip-gray{color:var(--text-3)}
.arch-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.8rem}
.arch-cell{
  background:var(--panel-2);border:1px solid var(--line);border-radius:10px;
  padding:.9rem 1rem;transition:border-color .25s,transform .25s;
}
.arch-cell:hover{border-color:var(--violet);transform:translateY(-3px)}
.arch-cell b{display:block;font-size:13.5px;color:var(--text);margin-bottom:.2rem}
.arch-cell small{font-size:12px;color:var(--text-3)}
.arch-rail{
  position:relative;height:44px;margin-left:27px;border-left:1px dashed var(--line-str);
}
.pulse-dot{
  position:absolute;left:-3.5px;top:2px;width:7px;height:7px;border-radius:50%;background:var(--c,var(--blue));
  animation:pulseDown 2.6s ease-in-out infinite;
}
@keyframes pulseDown{
  0%{top:4px;opacity:0}
  20%{opacity:1}
  80%{opacity:1}
  100%{top:calc(100% - 10px);opacity:0}
}

/* ---------- 03 解决方案 ---------- */
.sol-tabs{
  display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:2.2rem;
  border-bottom:1px solid var(--line);padding-bottom:0;
}
.sol-tab{
  position:relative;display:flex;align-items:baseline;gap:.6em;
  background:none;border:0;color:var(--text-3);cursor:pointer;
  font-family:var(--font-b);font-size:16px;font-weight:600;
  padding:.9rem 1.3rem 1rem;transition:color .25s;
}
.sol-tab .mono{font-size:11px;color:var(--text-3);transition:color .25s}
.sol-tab-en{font-family:var(--font-m);font-size:9.5px;letter-spacing:.12em;color:var(--text-3);text-transform:uppercase}
.sol-tab::after{
  content:"";position:absolute;left:1.3rem;right:1.3rem;bottom:-1px;height:2px;
  background:linear-gradient(90deg,var(--blue),var(--orange));transform:scaleX(0);
  transform-origin:left;transition:transform .35s cubic-bezier(.2,.7,.3,1);
}
.sol-tab:hover{color:var(--text)}
.sol-tab.active{color:#fff}
.sol-tab.active .mono,.sol-tab.active .sol-tab-en{color:var(--blue-soft)}
.sol-tab.active::after{transform:scaleX(1)}
.sol-panel{display:none;animation:panelIn .5s cubic-bezier(.2,.7,.3,1)}
.sol-panel.active{display:block}
@keyframes panelIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.sol-head{margin-bottom:1.6rem}
.sol-head h3{font-family:var(--font-h);font-size:1.55rem;font-weight:700;margin-bottom:.45rem}
.sol-head p{color:var(--text-2);font-size:14.5px}
.sol-layers{display:flex;flex-direction:column;gap:.9rem;margin-bottom:1.6rem}
.sol-layer{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:1.25rem 1.4rem;
  transition:border-color .3s;
}
.sol-layer:hover{border-color:var(--line-str)}
.sol-layer-tag{
  display:inline-block;font-size:10px;letter-spacing:.14em;margin-bottom:.85rem;padding:.35em .85em;border-radius:6px;
}
.tag-blue{background:rgba(76,123,255,.1);color:var(--blue-soft);border:1px solid rgba(76,123,255,.3)}
.tag-violet{background:rgba(143,168,255,.08);color:var(--violet);border:1px solid rgba(143,168,255,.25)}
.tag-gray{background:rgba(148,170,220,.06);color:var(--text-3);border:1px solid var(--line)}
.tag-orange{background:rgba(255,138,42,.1);color:#FFB25E;border:1px solid rgba(255,138,42,.3)}
.sol-layer-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.7rem}
.sol-card{
  background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:.85rem 1.05rem;
  transition:transform .25s,border-color .25s,background .25s;
}
.sol-card:hover{transform:translateY(-3px);border-color:var(--blue);background:rgba(76,123,255,.05)}
.sol-card b{display:block;font-size:13.5px;margin-bottom:.25rem}
.sol-card small{color:var(--text-3);font-size:12px;line-height:1.6;display:block}
.sol-flow{display:flex;align-items:center;gap:.8rem;flex-wrap:wrap}
.flow-node{
  font-size:13px;padding:.6em 1.1em;border-radius:9px;background:var(--panel-2);
  border:1px solid var(--line);color:var(--text-2);transition:border-color .25s;
}
.flow-node:hover{border-color:var(--violet)}
.flow-node-hot{border-color:rgba(255,138,42,.45);color:#FFB25E;background:rgba(255,138,42,.07)}
.sol-flow>i{
  width:26px;height:1px;background:linear-gradient(90deg,var(--blue),var(--orange));
  position:relative;flex:none;overflow:visible;
}
.sol-flow>i::after{
  content:"";position:absolute;right:0;top:-2.5px;width:6px;height:6px;border-radius:50%;
  background:var(--orange);box-shadow:0 0 8px var(--orange);
}
.sol-flow-sub{color:var(--text-3);font-size:12.5px;margin-top:.7rem}
.sol-foot{
  display:grid;grid-template-columns:1.4fr 1fr;gap:1.2rem;align-items:stretch;
}
.sol-closed{
  background:linear-gradient(135deg,rgba(76,123,255,.12),rgba(255,138,42,.06));
  border:1px solid rgba(76,123,255,.25);border-radius:var(--r);padding:1.2rem 1.5rem;
  display:flex;flex-direction:column;justify-content:center;gap:.35rem;
}
.sol-closed .mono{color:var(--blue-soft);font-size:12px;letter-spacing:.18em}
.sol-closed span{color:var(--text-2);font-size:14px}
.sol-kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:.7rem}
.sol-kpis>div{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:1rem .8rem;text-align:center;display:flex;flex-direction:column;justify-content:center;gap:.3rem;
  transition:transform .25s,border-color .25s;
}
.sol-kpis>div:hover{transform:translateY(-4px);border-color:rgba(255,138,42,.4)}
.sol-kpis .mono{font-size:clamp(1.15rem,2vw,1.5rem);font-weight:700;color:var(--orange);letter-spacing:0}
.sol-kpis span{font-size:11.5px;color:var(--text-3);line-height:1.5}

/* ---------- 04 对比 ---------- */
.cmp{
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  margin-bottom:4rem;
}
.cmp-head,.cmp-row{display:grid;grid-template-columns:1fr 1fr 1.55fr}
.cmp-head{
  background:var(--panel);border-bottom:1px solid var(--line);
  font-family:var(--font-h);font-weight:700;font-size:14.5px;
}
.cmp-row{border-bottom:1px solid var(--line);transition:background .25s}
.cmp-row:last-child{border-bottom:0}
.cmp-row:hover{background:rgba(76,123,255,.045)}
.cmp-col{padding:1.05rem 1.5rem;display:flex;align-items:center;font-size:14px}
.cmp-vs{color:var(--text-3);font-size:13px;border-right:1px solid var(--line);background:rgba(7,11,20,.4)}
.cmp-head .cmp-vs{color:var(--text-2);background:rgba(7,11,20,.6)}
.cmp-them{color:var(--text-3);border-right:1px solid var(--line)}
.cmp-them::before{content:"✕ ";color:#6b4b3a;margin-right:.3em}
.cmp-head .cmp-them{color:var(--text-2)}
.cmp-us{
  color:var(--text);background:linear-gradient(90deg,rgba(76,123,255,.07),transparent 80%);
}
.cmp-us::before{
  content:"";width:9px;height:9px;border-radius:50%;background:var(--green);flex:none;
  margin-right:.7em;box-shadow:0 0 10px rgba(61,214,140,.7);
}
.cmp-head .cmp-us{
  color:#fff;background:linear-gradient(90deg,rgba(76,123,255,.16),rgba(255,138,42,.06));
}

/* 指标 */
.metrics{
  display:grid;grid-template-columns:repeat(6,1fr);gap:1rem;
  padding:2rem;border:1px solid var(--line);border-radius:var(--r);background:var(--panel);
  position:relative;overflow:hidden;
}
.metrics::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 200px at 20% 0%,rgba(76,123,255,.1),transparent 70%);
}
.metric{text-align:center;padding:.6rem .4rem;position:relative}
.metric .mono{
  display:block;font-size:clamp(1.6rem,3vw,2.3rem);font-weight:700;color:var(--text);
  background:linear-gradient(180deg,#fff,var(--blue-soft));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height:1.15;margin-bottom:.45rem;letter-spacing:0;
}
.metric span{font-size:12.5px;color:var(--text-2);display:block}
.metric small{display:block;font-size:10.5px;color:var(--text-3);margin-top:.15rem}

/* ---------- 05 技术矩阵 ---------- */
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.tech-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:1.7rem 1.7rem 1.5rem;position:relative;overflow:hidden;
  transition:transform .3s,border-color .3s,box-shadow .3s;
}
.tech-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:110px;height:110px;border-radius:50%;
  background:radial-gradient(circle,rgba(76,123,255,.08),transparent 70%);
  transition:transform .4s;
}
.tech-card:hover{transform:translateY(-5px);border-color:var(--line-str);box-shadow:var(--shadow)}
.tech-card:hover::after{transform:scale(1.5)}
.tech-tag{font-size:9.5px;letter-spacing:.16em;padding:.32em .8em;border-radius:5px;margin-bottom:1rem}
.tech-card h3{font-family:var(--font-h);font-size:1.12rem;font-weight:700;margin-bottom:.6rem}
.tech-card p{color:var(--text-3);font-size:13.5px;line-height:1.85}

/* ---------- 07 CTA ---------- */
.cta{
  position:relative;padding:150px 0;overflow:hidden;text-align:center;
  background:var(--bg-2);border-top:1px solid var(--line);
}
.cta canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.55}
.cta-glow{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(700px 340px at 50% 0%,rgba(76,123,255,.14),transparent 70%),
    radial-gradient(520px 280px at 85% 100%,rgba(255,138,42,.08),transparent 70%);
}
.cta-inner{position:relative;z-index:2}
.cta .eyebrow{justify-content:center}
.cta .eyebrow::before{content:"";width:64px;height:1px;background:linear-gradient(-90deg,var(--line-str),transparent)}
.cta h2{
  font-family:var(--font-h);font-weight:700;font-size:clamp(2rem,4.8vw,3.6rem);
  line-height:1.3;margin:1.2rem 0 1.4rem;
}
.cta-sub{color:var(--text-2);font-size:clamp(15px,1.4vw,17px);line-height:2}
.cta-btns{display:flex;gap:1rem;justify-content:center;margin-top:2.4rem;flex-wrap:wrap}
.cta-points{
  display:flex;align-items:center;justify-content:center;gap:1.6rem;
  margin-top:3rem;color:var(--text-2);font-size:13.5px;flex-wrap:wrap;
}
.cta-points i{width:4px;height:4px;border-radius:50%;background:var(--orange);display:inline-block}
.cta-points b{color:var(--orange)}

/* ---------- 08 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:1.8rem;align-items:start}
.contact-info{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:2.2rem;display:flex;flex-direction:column;gap:1.5rem;
}
.contact-line{display:flex;gap:1.1rem;align-items:flex-start}
.contact-ic{
  width:46px;height:46px;flex:none;border-radius:11px;display:grid;place-items:center;
  color:var(--blue);background:rgba(76,123,255,.09);border:1px solid rgba(76,123,255,.25);
  transition:transform .25s,box-shadow .25s;
}
.contact-line:hover .contact-ic{transform:scale(1.06);box-shadow:0 0 20px -4px rgba(76,123,255,.5)}
.contact-line small{display:block;font-size:11.5px;color:var(--text-3);letter-spacing:.06em}
.contact-line b{font-size:15.5px;font-weight:600}
.contact-line em{font-style:normal;font-size:12px;color:var(--text-3)}
.contact-qr{
  display:flex;gap:1.2rem;align-items:center;padding-top:1.4rem;
  border-top:1px solid var(--line);
}
.qr-box{
  width:112px;height:112px;flex:none;background:#fff;border-radius:10px;
  display:grid;place-items:center;padding:6px;
  box-shadow:0 10px 30px -10px rgba(76,123,255,.35);
}
.qr-box img{width:100%;height:100%;object-fit:contain;border-radius:6px;display:block}
.qr-text small{font-size:11px;color:var(--text-3);letter-spacing:.1em}
.qr-text b{display:block;font-size:15px;margin:.2rem 0}
.qr-text em{font-style:normal;font-size:11px;color:var(--text-3)}
.contact-form{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:2.2rem 2.2rem 2rem;
}
.contact-form h3{font-family:var(--font-h);font-size:1.3rem;font-weight:700;margin-bottom:1.6rem}
.form-row{margin-bottom:1.15rem}
.form-row label{display:block;font-size:13px;color:var(--text-2);margin-bottom:.45rem}
.form-row label b{color:var(--orange)}
.form-row input,.form-row select,.form-row textarea{
  width:100%;background:var(--bg-2);border:1px solid var(--line);border-radius:10px;
  color:var(--text);font-family:var(--font-b);font-size:14.5px;
  padding:.8em 1em;outline:none;transition:border-color .25s,box-shadow .25s;
}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  border-color:var(--blue);box-shadow:0 0 0 3px rgba(76,123,255,.15);
}
.form-row input::placeholder,.form-row textarea::placeholder{color:var(--text-3)}
.form-row textarea{resize:vertical;min-height:88px}
.form-note{color:var(--text-3);font-size:12px;margin-top:.8rem;text-align:center}
/* 蜜罐反垃圾：视觉隐藏，仅供机器人填写 */
.hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.hp input{opacity:0;pointer-events:none}

/* ---------- 扫码弹窗（推送失败兜底） ---------- */
.modal{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;
  padding:20px;background:rgba(4,7,14,.72);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}
.modal.open{opacity:1;visibility:visible}
.modal-box{position:relative;width:min(360px,100%);background:var(--bg-2);border:1px solid var(--line);
  border-radius:16px;padding:28px 26px 24px;text-align:center;
  transform:translateY(14px) scale(.98);transition:transform .25s;box-shadow:0 24px 60px rgba(0,0,0,.5)}
.modal.open .modal-box{transform:none}
.modal-close{position:absolute;top:10px;right:12px;width:32px;height:32px;border:0;background:transparent;
  color:var(--text-2);font-size:22px;line-height:1;cursor:pointer;border-radius:8px;transition:background .2s,color .2s}
.modal-close:hover{color:var(--text);background:rgba(255,255,255,.06)}
.modal-box h3{font-size:18px;margin-bottom:8px}
.modal-sub{color:var(--text-2);font-size:13px;line-height:1.7;margin-bottom:18px}
.modal-qr{width:200px;height:200px;margin:0 auto;background:#fff;border-radius:12px;padding:8px;border:1px solid var(--line)}
.modal-qr img{width:100%;height:100%;object-fit:contain;display:block}
.modal-tip{color:var(--text-3);font-size:12px;margin-top:16px;line-height:1.8}
.modal-tip a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--line);background:var(--bg-2);padding:60px 0 30px}
.footer-inner{display:grid;grid-template-columns:1.3fr 1fr;gap:3rem}
.footer-brand p{color:var(--text-3);font-size:13.5px;line-height:2;margin-top:1.2rem}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.footer-col h4{
  font-family:var(--font-m);font-size:11px;letter-spacing:.2em;color:var(--text-3);
  text-transform:uppercase;margin-bottom:1rem;
}
.footer-col a{display:block;color:var(--text-2);text-decoration:none;font-size:13.5px;padding:.32rem 0;transition:color .25s,padding-left .25s}
.footer-col a:hover{color:var(--blue-soft);padding-left:.4rem}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;
  margin-top:3rem;padding-top:1.6rem;border-top:1px solid var(--line);
  color:var(--text-3);font-size:12.5px;
}
.footer-mono{font-size:10.5px;letter-spacing:.14em;color:var(--text-3);opacity:.7}

/* ---------- Reveal 动画 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1);transition-delay:var(--d,0s)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .metrics{grid-template-columns:repeat(3,1fr);gap:1.6rem 1rem}
  .tech-grid{grid-template-columns:repeat(2,1fr)}
  .sol-foot{grid-template-columns:1fr}
  .arch-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .wrap{padding:0 22px}
  .nav-links{
    position:fixed;inset:0;top:72px;flex-direction:column;justify-content:flex-start;gap:1.4rem;
    background:var(--bg);padding:3rem 2rem;
    transform:translateX(100%);transition:transform .4s cubic-bezier(.2,.7,.3,1);align-items:flex-start;
    isolation:isolate; /* 兜底：确保面板背景与自身同层绘制，不受祖先合成上下文影响 */
  }
  .nav-links.open{transform:none}
  .nav-link{font-size:17px}
  .nav-cta{margin-top:.6rem}
  .nav-burger{display:flex}
  .pillar-grid{grid-template-columns:1fr}
  .hero-chip{display:none}
  .contact-grid{grid-template-columns:1fr}
  .cmp-head,.cmp-row{grid-template-columns:1fr 1fr}
  .cmp-head .cmp-us,.cmp-row .cmp-us{grid-column:1 / -1;background:rgba(76,123,255,.07)}
  .cmp-head .cmp-us{border-top:1px solid var(--line)}
  .footer-inner{grid-template-columns:1fr}
  .hero{padding:120px 0 80px}
  .section{padding:84px 0}
  .sol-tab{padding:.8rem 1rem .9rem;font-size:15px}
  .arch-layer{grid-template-columns:44px 1fr}
  .arch-layer-body{padding:1.4rem 1.5rem 1.4rem 1.2rem}
}
@media (max-width:640px){
  .metrics{grid-template-columns:repeat(2,1fr)}
  .tech-grid{grid-template-columns:1fr}
  .hero-trust{gap:1.2rem;flex-direction:column}
  .sol-tab-en{display:none}
  .sol-layer-cards{grid-template-columns:1fr 1fr}
  .sol-kpis{grid-template-columns:1fr}
  .hide-sm{display:block}
  .hero-title br{display:none}
  .cta{ padding:110px 0}
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}