/* ============================================================
   Agent Workspace — CYBER / TERMINAL 主题
   暗黑底 · 霓虹青绿 · 网格 · 终端窗口 · 扫描线
   零外部依赖（无外部样式表 / 外链字体）
   ============================================================ */
:root{
  --bg:#07090d;
  --bg-2:#0b0f16;
  --panel:#0e131c;
  --panel-2:#111826;
  --line:#1c2536;
  --line-2:#26324a;
  --txt:#e6edf7;
  --txt-dim:#8b98ad;
  --txt-faint:#5b6779;
  --neon:#3dffd0;      /* 主霓虹：青绿 */
  --neon-2:#7c5cff;    /* 副霓虹：紫 */
  --neon-3:#ff5c8a;    /* 强调：粉 */
  --amber:#ffb347;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,'Roboto Mono',monospace;
  --sans:-apple-system,BlinkMacSystemFont,'PingFang SC','Noto Sans SC','Microsoft YaHei',system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--txt);
  font-family:var(--sans);-webkit-font-smoothing:antialiased;
  overflow-x:hidden;position:relative;
}
/* 网格底 + 顶部霓虹光晕 */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:
    linear-gradient(rgba(61,255,208,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(61,255,208,.045) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(120vw 90vh at 50% 0%,#000 30%,transparent 85%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(50vw 40vw at 15% -6%, rgba(61,255,208,.14), transparent 60%),
    radial-gradient(46vw 40vw at 92% 0%, rgba(124,92,255,.16), transparent 62%),
    radial-gradient(60vw 50vw at 50% 108%, rgba(255,92,138,.10), transparent 62%);
}
.shell{width:min(1180px,calc(100% - 48px));margin:auto}

/* ---------- 导航 ---------- */
.nav{
  height:78px;display:flex;align-items:center;justify-content:space-between;
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(16px);
  background:linear-gradient(to bottom,rgba(7,9,13,.92),rgba(7,9,13,.55));
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--txt);font:700 12px var(--mono);letter-spacing:.18em}
.brand img{width:32px;height:32px;border-radius:8px;border:1px solid var(--line-2)}
.brand b{color:var(--neon);font-weight:700}
.nav nav{display:flex;align-items:center;gap:28px}
.nav a{color:var(--txt-dim);font:500 13px var(--sans);text-decoration:none;transition:color .2s}
.nav a:hover{color:var(--neon)}
.nav-cta{
  padding:10px 18px;border-radius:10px;color:#04150f!important;font-weight:800;
  background:linear-gradient(120deg,var(--neon),#5ef0c0);
  box-shadow:0 0 0 1px rgba(61,255,208,.5), 0 10px 26px rgba(61,255,208,.28);
  transition:transform .2s,box-shadow .2s;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 0 0 1px var(--neon),0 14px 34px rgba(61,255,208,.42)}
.nav-cta span{padding-left:6px}

/* ---------- Hero ---------- */
.hero{display:grid;grid-template-columns:1.02fr .98fr;min-height:660px;align-items:center;padding:70px 0 96px;gap:48px}
.eyebrow{font:600 11px var(--mono);letter-spacing:.22em;color:var(--neon);text-transform:uppercase;display:flex;align-items:center;gap:9px}
.eyebrow i{width:7px;height:7px;background:var(--neon);border-radius:50%;box-shadow:0 0 10px var(--neon);animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
h1{font-size:clamp(42px,5.4vw,74px);line-height:1.03;letter-spacing:-.045em;margin:22px 0 24px;font-weight:800;color:var(--txt)}
h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--neon),#66ffe0 40%,var(--neon-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 22px rgba(61,255,208,.35));
}
.lead{max-width:560px;color:var(--txt-dim);font-size:15.5px;line-height:1.85;margin:0}
.hero-actions{display:flex;align-items:center;gap:22px;margin-top:36px;flex-wrap:wrap}
.button{
  display:inline-flex;align-items:center;gap:24px;padding:15px 22px;border-radius:12px;
  text-decoration:none;font:700 13px var(--mono);letter-spacing:.04em;
  transition:transform .2s,box-shadow .2s;
}
.button.primary{
  color:#04150f;background:linear-gradient(120deg,var(--neon),#4fe6c0);
  box-shadow:0 0 0 1px rgba(61,255,208,.55),0 14px 36px rgba(61,255,208,.3);
}
.button.primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px var(--neon),0 20px 46px rgba(61,255,208,.45)}
.button span{font-size:18px}
.text-link{color:var(--txt);font:600 13px var(--sans);text-decoration:none;display:flex;align-items:center;transition:color .2s}
.text-link:hover{color:var(--neon)}
.text-link span{color:var(--neon);margin-left:7px;font-size:17px}
.meta{font:500 11px var(--mono);color:var(--txt-faint);margin-top:24px;letter-spacing:.04em}
.meta b{color:var(--line-2);margin:0 8px}

/* ---------- 手机预览（终端窗口风） ---------- */
.hero-visual{display:flex;justify-content:center;position:relative}
.glow{
  position:absolute;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(61,255,208,.28),rgba(124,92,255,.20) 48%,transparent 72%);
  filter:blur(40px);top:30px;right:10px;animation:floaty 8s ease-in-out infinite;
}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
.phone{
  width:296px;height:590px;background:var(--panel);border:1px solid var(--line-2);border-radius:26px;
  box-shadow:0 0 0 1px rgba(61,255,208,.18),0 40px 90px rgba(0,0,0,.7),0 0 70px rgba(61,255,208,.12);
  padding:14px 14px 0;position:relative;z-index:1;overflow:hidden;
  animation:floaty 9s ease-in-out infinite;
}
.phone::after{ /* 扫描线 */
  content:"";position:absolute;left:0;right:0;top:0;height:120px;pointer-events:none;
  background:linear-gradient(to bottom,rgba(61,255,208,.10),transparent);
  animation:scan 5s linear infinite;
}
@keyframes scan{0%{transform:translateY(-120px)}100%{transform:translateY(590px)}}
.phone-top{display:flex;justify-content:space-between;font:500 10px var(--mono);color:var(--txt-faint);padding:2px 4px 0}
.ph-head{display:flex;align-items:center;margin-top:20px}
.ph-head .ph-col{flex:1}
.ph-label{font:600 9px var(--mono);letter-spacing:.16em;color:var(--neon)}
.greeting{font-size:21px;line-height:1.2;font-weight:800;margin-top:7px;color:var(--txt)}
.ph-avatar{
  width:42px;height:42px;border-radius:50%;background:var(--panel-2);color:var(--neon);
  display:flex;align-items:center;justify-content:center;font-size:19px;
  border:1px solid var(--line-2);box-shadow:0 0 16px rgba(61,255,208,.2) inset;
}
.task-panel{
  background:linear-gradient(125deg,rgba(61,255,208,.16),rgba(124,92,255,.14));
  border:1px solid rgba(61,255,208,.35);
  color:var(--txt);border-radius:16px;padding:16px;margin-top:16px;
  box-shadow:0 0 26px rgba(61,255,208,.12);
}
.panel-kicker{font:600 9px var(--mono);color:var(--neon);letter-spacing:.14em;opacity:.9}
.task-panel strong{font-size:16px;display:block;margin-top:9px;line-height:1.3;color:#fff}
.task-panel p{font-size:10px;color:var(--txt-dim);line-height:1.55;margin:7px 0 14px}
.task-button{
  background:linear-gradient(120deg,var(--neon),#4fe6c0);color:#04150f;padding:10px;text-align:center;border-radius:9px;
  font:800 10px var(--mono);box-shadow:0 8px 20px rgba(61,255,208,.35);
}
.stats{display:flex;gap:9px;margin-top:11px}
.stats>div{background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:12px 10px;flex:1}
.stats small,.stats span{display:block;color:var(--txt-faint);font-size:9px}
.stats strong{display:block;font-size:20px;margin:7px 0;color:var(--txt)}
.stats .online{color:var(--neon);font-size:12px;margin-top:14px;display:flex;align-items:center;gap:5px}
.online::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--neon);box-shadow:0 0 8px var(--neon)}
.ph-section{margin-top:16px;font:700 11px var(--sans);color:var(--txt-dim)}
.ph-row{
  margin-top:9px;background:var(--panel-2);border:1px solid var(--line);border-radius:12px;
  padding:10px 12px;display:flex;align-items:center;gap:10px;
}
.ph-row .ic{width:32px;height:32px;border-radius:10px;background:rgba(61,255,208,.12);color:var(--neon);display:flex;align-items:center;justify-content:center;font-size:15px;border:1px solid rgba(61,255,208,.25)}
.ph-row b{font-size:11px;display:block;color:var(--txt)}
.ph-row small{font-size:9px;color:var(--txt-faint)}
.phone-nav{
  position:absolute;bottom:0;left:0;right:0;height:60px;
  background:rgba(11,15,22,.94);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);display:flex;justify-content:space-around;align-items:center;padding:0 10px;
}
.phone-nav span{color:var(--txt-faint);font-size:17px;text-align:center;width:44px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:12px}
.phone-nav span:first-child{color:#04150f;background:linear-gradient(125deg,var(--neon),#4fe6c0);box-shadow:0 0 18px rgba(61,255,208,.5)}

/* ---------- Signal 三栏 ---------- */
.signal{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  display:grid;grid-template-columns:repeat(3,1fr);padding:40px 0;gap:44px;
}
.signal>div{display:grid;grid-template-columns:44px 1fr;column-gap:14px}
.signal .number{font:700 12px var(--mono);color:var(--neon);padding-top:4px}
.signal strong{font:700 14px var(--sans);color:var(--txt)}
.signal p{grid-column:2;color:var(--txt-dim);font-size:12px;line-height:1.7;margin:9px 0 0}

/* ---------- 功能（BENTO 错落网格） ---------- */
.features{padding:118px 0}
.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:52px}
.section-heading h2,.download h2{font-size:clamp(34px,4vw,44px);line-height:1.1;letter-spacing:-.04em;margin:14px 0 0;color:var(--txt)}

.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;grid-auto-rows:200px}
.bento-card{
  background:var(--panel);border:1px solid var(--line);border-radius:18px;
  padding:22px 20px 22px;position:relative;overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .28s cubic-bezier(.2,.7,.3,1),border-color .28s,box-shadow .28s;
}
.bento-card.col2{grid-column:span 2}
.bento-card.row2{grid-row:span 2}
.bento-card::before{ /* 顶部霓虹描边 */
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--neon),var(--neon-2));
  opacity:0;transition:opacity .28s;
}
.bento-card::after{ /* 角落光晕 */
  content:"";position:absolute;width:220px;height:220px;right:-90px;top:-110px;border-radius:50%;
  background:radial-gradient(circle,rgba(61,255,208,.16),transparent 70%);
  opacity:0;transition:opacity .28s;pointer-events:none;
}
.bento-card:hover{transform:translateY(-6px);border-color:var(--line-2);box-shadow:0 24px 52px rgba(0,0,0,.55),0 0 40px rgba(61,255,208,.10)}
.bento-card:hover::before{opacity:1}
.bento-card:hover::after{opacity:1}
.bc-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.bc-num{font:700 12px var(--mono);color:var(--txt-faint);letter-spacing:.1em}
.bento-card:hover .bc-num{color:var(--neon)}
.icon{font-size:24px;color:var(--neon);display:block;text-shadow:0 0 16px rgba(61,255,208,.55);line-height:1}
.bento-card h3{font-size:16px;margin:0 0 9px;color:var(--txt)}
.bento-card p{color:var(--txt-dim);font-size:12.5px;line-height:1.75;margin:0;flex:0 0 auto}
.bento-card .tag{font:600 10px var(--mono);color:var(--txt-faint);letter-spacing:.08em;margin-top:auto;padding-top:14px;display:block}

/* 卡片内的代码窗口 */
.bc-code{margin:16px 0 4px;border:1px solid var(--line-2);border-radius:12px;overflow:hidden;background:#080b11;flex:1;min-height:0}
.code-bar{display:flex;align-items:center;gap:6px;padding:9px 12px;background:#0b0f16;border-bottom:1px solid var(--line);font:600 10px var(--mono);color:var(--txt-faint)}
.code-bar i{width:9px;height:9px;border-radius:50%;background:#33405a;display:block}
.code-bar i:nth-child(1){background:#ff5c8a}
.code-bar i:nth-child(2){background:#ffb347}
.code-bar i:nth-child(3){background:var(--neon)}
.code-bar span{margin-left:8px}
.bc-code pre{margin:0;padding:12px 14px;overflow:auto;font:11.5px/1.7 var(--mono);color:#c8d4e6}
.bc-code .k{color:var(--neon-2)}
.bc-code .fn{color:var(--neon)}
.bc-code .s{color:#ffb347}

/* ---------- 下载 ---------- */
.download{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;
  background:linear-gradient(135deg,#0a0e15,#0d1420 55%,#120f22);
  border:1px solid var(--line-2);color:var(--txt);padding:60px 62px;margin-bottom:66px;border-radius:22px;
  box-shadow:0 0 0 1px rgba(61,255,208,.12),0 40px 90px rgba(0,0,0,.6);
  position:relative;overflow:hidden;
}
.download::before{
  content:"";position:absolute;width:440px;height:440px;right:-140px;top:-180px;
  background:radial-gradient(circle,rgba(61,255,208,.22),transparent 65%);filter:blur(24px);
}
.download>*{position:relative;z-index:1}
.download .eyebrow{color:var(--neon)}
.download h2{font-size:36px}
.download p{color:var(--txt-dim);font-size:13px;line-height:1.8;max-width:400px}
.download-actions{display:flex;flex-direction:column;gap:12px;justify-content:center}
.download-row{
  display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--txt);
  border:1px solid var(--line-2);border-radius:13px;padding:15px 16px;
  background:rgba(255,255,255,.02);
  transition:border-color .2s,box-shadow .2s,transform .2s;
}
.download-row:hover{border-color:var(--neon);box-shadow:0 0 24px rgba(61,255,208,.18);transform:translateY(-1px)}
.file-icon{font-size:22px;color:var(--neon);width:22px;text-align:center}
.download-row span:nth-child(2){flex:1}
.download-row strong,.download-row small{display:block}
.download-row strong{font-size:12.5px}
.download-row small{font:500 10px var(--mono);color:var(--txt-faint);margin-top:4px}
.download-row>b{font:700 11px var(--mono);color:var(--neon)}

/* ---------- 交流群 ---------- */
.group-card{
  max-width:520px;margin:0 auto;background:var(--panel);
  border:1px solid var(--line-2);border-radius:22px;padding:30px 26px;text-align:center;
  box-shadow:0 0 0 1px rgba(61,255,208,.10),0 30px 70px rgba(0,0,0,.55);
}
.group-card h2{margin:10px 0 8px;font-size:22px;color:var(--txt)}
.group-card .eyebrow{justify-content:center}
.group-card p{margin:0 0 18px;color:var(--txt-dim);font-size:13px;line-height:1.75}
.group-card b{color:var(--neon)}
.group-card img{width:100%;max-width:300px;border-radius:14px;display:block;margin:0 auto;border:1px solid var(--line-2);background:#fff;padding:6px}
.group-btn{
  display:inline-block;margin-top:20px;padding:12px 26px;border-radius:12px;
  color:#04150f;text-decoration:none;font:800 13px var(--mono);letter-spacing:.03em;
  background:linear-gradient(120deg,var(--neon),#4fe6c0);
  box-shadow:0 0 0 1px rgba(61,255,208,.5),0 12px 30px rgba(61,255,208,.3);transition:transform .2s;
}
.group-btn:hover{transform:translateY(-2px)}

/* ---------- 开源 ---------- */
.licenses{padding:0 0 88px}
.licenses .section-heading{display:block;margin-bottom:32px}
.licenses-lead{max-width:640px;color:var(--txt-dim);font-size:13px;line-height:1.85;margin:16px 0 0}
.license-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.license-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px 18px;box-shadow:0 0 24px rgba(0,0,0,.35)}
.license-card h3{font-size:14px;margin:0 0 10px;color:var(--txt);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.license-card p{color:var(--txt-dim);font-size:12px;line-height:1.8;margin:0}
.license-card code{font:11px var(--mono);background:#0a0e15;color:var(--neon);padding:1px 5px;border-radius:4px;border:1px solid var(--line);word-break:break-all}
.license-card a{color:var(--neon);text-decoration:none;font-weight:600}
.license-card a:hover{text-decoration:underline}
.lic-tag{font:700 10px var(--mono);letter-spacing:.03em;background:rgba(61,255,208,.12);color:var(--neon);border:1px solid rgba(61,255,208,.3);border-radius:5px;padding:3px 7px;white-space:nowrap}
.lic-tag--gpl{background:rgba(255,92,138,.12);color:var(--neon-3);border-color:rgba(255,92,138,.3)}
.lic-note{font-size:11px;color:var(--txt-faint);margin-top:9px!important}
.license-notice{background:var(--panel);border-left:3px solid var(--neon);border-radius:12px;padding:18px 20px;margin-top:16px}
.license-notice strong{font-size:12px;display:block;margin-bottom:7px;color:var(--neon)}
.license-notice p{color:var(--txt-dim);font-size:12px;line-height:1.85;margin:0}

footer{border-top:1px solid var(--line);padding:26px 0 38px;display:flex;justify-content:space-between;color:var(--txt-faint);font:500 10px var(--mono)}
footer b{color:var(--neon)}

/* ---------- 滚动入场 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

@media(max-width:980px){.license-grid{grid-template-columns:1fr 1fr}}
@media(max-width:760px){
  .shell{width:calc(100% - 34px)}
  .nav{height:68px}
  .nav nav a:not(.nav-cta){display:none}
  .hero{display:flex;flex-direction:column;align-items:flex-start;padding:52px 0 70px}
  .hero-copy{width:100%}
  h1{font-size:42px}
  .lead{font-size:14px}
  .hero-visual{width:100%;margin-top:30px}
  .phone{transform:scale(.86);transform-origin:top center;margin-bottom:-80px}
  .signal{grid-template-columns:1fr;gap:24px;padding:32px 0}
  .features{padding:74px 0}
  .section-heading{display:block;margin-bottom:30px}
  .bento{grid-template-columns:1fr 1fr;grid-auto-rows:auto}
  .bento-card.col2{grid-column:span 2}
  .bento-card.row2{grid-row:auto}
  .bento-card{padding:20px 16px;min-height:200px}
  .bento-card .bc-code{max-height:180px}
  .download{display:block;padding:36px 22px;margin-bottom:44px}
  .download-actions{margin-top:28px}
  .licenses{padding:0 0 60px}
  .license-grid{grid-template-columns:1fr}
  footer{font-size:9px}
}
@media(max-width:430px){.bento{grid-template-columns:1fr}.bento-card.col2{grid-column:auto}.hero-actions{gap:16px}.button{padding:14px 16px}.download-row{padding:13px 11px}}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}