/* ============================================================
   北创大为 · 低空经济产教融合平台 — 共享设计系统
   克莱因蓝 #0028A0 + 荧光黄 #FFE800 + 深字 #01153C
   ============================================================ */

:root{
  --klein:#0028A0;
  --klein-bright:#0240C8;
  --yellow:#FFE800;
  --ink:#01153C;
  --white:#FFFFFF;
  --text-secondary:#9FB4E0;
  --text-light:#B9C8E4;
  --text-muted:#6E82A8;
  --green:#4ADE80;
  --blue:#7FB0FF;
  --orange:#FFA726;
  --card-bg:rgba(10,32,88,0.5);
  --card-bg-strong:rgba(8,28,78,0.72);
  --card-border:rgba(255,255,255,0.12);
  --card-border-yellow:rgba(255,232,0,0.4);
  --radius:14px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",-apple-system,"Segoe UI",sans-serif;
  --font-num:"SF Pro Display","Segoe UI",-apple-system,Helvetica,Arial,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-cn);
  color:var(--white);
  background:#01051A;
  background-image:
    radial-gradient(1200px 700px at 85% -10%, rgba(2,64,200,0.35), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, rgba(0,40,160,0.35), transparent 55%),
    linear-gradient(135deg,#172E8C 0%,#0D2470 18%,#061757 42%,#030D38 70%,#01051A 100%);
  background-attachment:fixed;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
button{font-family:var(--font-cn)}
.container{width:min(1248px,100%);margin:0 auto;padding:0 48px}
::selection{background:var(--yellow);color:var(--ink)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;
  transition:transform .18s,box-shadow .18s,background .18s,border-color .18s;
}
.btn-primary{background:var(--yellow);color:var(--ink);padding:9px 18px;border-radius:10px;font-size:14px;font-weight:700}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(255,232,0,0.3)}
.btn-lg{padding:14px 26px;border-radius:12px;font-size:16px}
.btn-xl{padding:16px 32px;border-radius:12px;font-size:17px}
.btn-outline{background:transparent;color:var(--yellow);border:1px solid rgba(255,232,0,0.6);padding:14px 26px;border-radius:12px;font-size:16px;font-weight:600}
.btn-outline:hover{background:rgba(255,232,0,0.08);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text-light);border:1px solid var(--card-border);padding:9px 18px;border-radius:10px;font-size:14px;font-weight:600}
.btn-ghost:hover{border-color:rgba(255,255,255,0.3);color:var(--white)}

/* ===== 头部 ===== */
header{
  position:sticky;top:0;z-index:100;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  background:rgba(1,21,60,0.55);
  border-bottom:1px solid rgba(255,255,255,0.07);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px}
.logo-mark{width:28px;height:28px;display:block;flex:none;border-radius:6px}
.footer-logo .logo-mark{width:30px;height:30px}
.brand-text{display:flex;flex-direction:column;gap:1px;line-height:1.15}
.brand-cn{font-size:15px;font-weight:700;letter-spacing:1px}
.brand-sub{font-size:11px;color:var(--text-secondary)}
nav{display:flex;align-items:center;gap:24px}
nav a{font-size:13.5px;color:var(--text-light);transition:color .2s;position:relative;white-space:nowrap}
nav a:hover{color:var(--white)}
nav a.active{color:var(--yellow);font-weight:600}
nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--yellow);border-radius:2px}
.header-actions{display:flex;align-items:center;gap:20px}
.header-login{font-size:14px;font-weight:600;color:var(--text-light);cursor:pointer;transition:color .2s}
.header-login:hover{color:var(--white)}

/* ===== 通用 section ===== */
section{scroll-margin-top:80px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13.5px;font-weight:600;color:var(--yellow);letter-spacing:.5px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--yellow);opacity:.8}
.sec-title{font-family:'Inter Tight','Noto Sans SC',sans-serif;font-size:42px;font-weight:800;letter-spacing:-.5px;line-height:1.25}
.sec-sub{font-size:17px;color:var(--text-secondary);max-width:660px;line-height:1.85}
.sec-head{display:flex;flex-direction:column;gap:18px;margin-bottom:72px}

/* 中英双语 eyebrow（国际化） */
.eyebrow-bilingual{display:inline-flex;align-items:center;gap:12px;font-size:14px;font-weight:700;color:var(--yellow);letter-spacing:.5px;font-family:'Noto Sans SC','Inter Tight',sans-serif}
.eyebrow-bilingual .en{font-family:'Inter Tight',sans-serif;font-weight:600;font-size:12px;color:var(--text-muted);letter-spacing:1.5px;text-transform:uppercase}
.eyebrow-bilingual::before{content:"";width:22px;height:1px;background:var(--yellow);opacity:.8;flex:none}
.eyebrow-bilingual-center{margin:0 auto 0;text-align:center;justify-content:center}

/* 网格背景（科技感） */
.hero-grid-bg::before,
.metrics-grid-bg::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(2,64,200,0.12) 1px,transparent 1px),linear-gradient(90deg,rgba(2,64,200,0.12) 1px,transparent 1px);background-size:80px 80px;mask-image:radial-gradient(ellipse 80% 60% at 50% 50%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 50%,#000 30%,transparent 80%);pointer-events:none;z-index:0}
.hero-grid-bg>.container,.metrics-grid-bg>.container{position:relative;z-index:1}
.hero-grid-bg,.metrics-grid-bg{position:relative;overflow:hidden}

/* ===== Hero（首页） ===== */
.hero{padding:120px 0 110px;position:relative}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.hero-left{display:flex;flex-direction:column;gap:30px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;width:fit-content;padding:8px 16px;border-radius:999px;background:rgba(255,232,0,0.12);border:1px solid rgba(255,232,0,0.5);font-size:13.5px;font-weight:600;color:var(--yellow)}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--yellow);box-shadow:0 0 8px var(--yellow)}
.hero-title{font-family:'Inter Tight','Noto Sans SC',sans-serif;font-size:52px;font-weight:800;line-height:1.2;letter-spacing:-1.2px;color:var(--white)}
.hero-title .line{display:block}
.grad{background:linear-gradient(90deg,#fff 0%,#FFE800 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17.5px;color:var(--text-light);max-width:560px;line-height:1.85}
.hero-ctas{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.hero-trust{display:flex;gap:32px;flex-wrap:wrap;border-top:1px solid rgba(2,64,200,0.22);padding-top:26px}
.hero-trust span{font-size:14px;color:var(--text-secondary);display:inline-flex;align-items:baseline;gap:6px}
.hero-trust span b{font-family:'Inter Tight','JetBrains Mono',monospace;font-size:24px;font-weight:700;color:var(--white);letter-spacing:-.5px}
.hero-trust span sup{font-size:11px;color:var(--yellow);margin-left:1px;font-weight:600}
.hero-visual{position:relative;height:460px;border-radius:24px;background:linear-gradient(135deg,rgba(0,40,160,0.35) 0%,rgba(1,21,60,0.25) 100%);border:1px solid rgba(64,140,255,0.25);overflow:hidden;display:flex;align-items:center;justify-content:center;box-shadow:0 30px 80px rgba(0,20,80,0.35)}
.hero-visual svg{width:100%;height:100%}
.live-badge{position:absolute;top:20px;left:20px;z-index:3;display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:8px;background:rgba(1,21,60,0.78);border:1px solid rgba(255,255,255,0.15);font-family:'Inter Tight','JetBrains Mono',monospace;font-size:11px;font-weight:600;color:var(--text-light);letter-spacing:1.5px;text-transform:uppercase}
.live-badge .pulse{width:7px;height:7px;border-radius:50%;background:#4ADE80;box-shadow:0 0 8px #4ADE80;animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.vis-corner{position:absolute;width:16px;height:16px;border:2px solid var(--yellow);z-index:3;opacity:.5}
.vis-corner-tl{top:18px;left:18px;border-right:none;border-bottom:none}
.vis-corner-tr{top:18px;right:18px;border-left:none;border-bottom:none}
.vis-corner-bl{bottom:18px;left:18px;border-right:none;border-top:none}
.vis-corner-br{bottom:18px;right:18px;border-left:none;border-top:none}
.vis-chip{position:absolute;z-index:3;padding:12px 16px;border-radius:12px;background:rgba(1,21,60,0.85);border:1px solid rgba(255,255,255,0.12);backdrop-filter:blur(8px);font-size:12px;line-height:1.4;min-width:120px}
.vis-chip .vis-chip-tag{display:inline-block;font-family:'Inter Tight','JetBrains Mono',monospace;font-size:9px;font-weight:700;color:var(--yellow);letter-spacing:2px;background:rgba(255,232,0,0.1);padding:2px 6px;border-radius:3px;margin-bottom:6px}
.vis-chip b{display:flex;align-items:baseline;gap:2px;font-family:'Inter Tight','JetBrains Mono',monospace;font-size:22px;font-weight:700;color:var(--white);letter-spacing:-.5px}
.vis-chip b span{font-size:12px;color:var(--yellow);font-weight:600}
.vis-chip b sup{font-size:10px;color:var(--yellow)}
.vis-chip small{color:var(--text-secondary);font-size:11px}
.vis-chip.c1{top:42px;right:32px}
.vis-chip.c2{bottom:52px;left:32px}

/* ===== 指标卡 ===== */
.metrics{padding:110px 0;position:relative}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric-card{position:relative;padding:32px 28px 28px;border-radius:18px;background:rgba(14,40,102,0.7);border:1px solid var(--card-border);display:flex;flex-direction:column;gap:10px;transition:transform .25s,border-color .25s,background .25s;overflow:hidden}
.metric-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:rgba(255,255,255,0.12);transition:background .25s}
.metric-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,0.22);background:rgba(18,48,118,0.85)}
.metric-card:hover::before{background:var(--yellow)}
.metric-card.highlight::before{background:var(--yellow)}
.metric-card.highlight{border-color:var(--card-border-yellow)}
.metric-no{position:absolute;top:18px;right:20px;font-family:'JetBrains Mono',monospace;font-size:10px;font-weight:700;color:var(--text-muted);letter-spacing:1.5px}
.metric-label{font-size:15px;color:var(--text-light);line-height:1.5;margin-top:8px}
.metric-label i{display:block;font-family:'Inter Tight',sans-serif;font-style:normal;font-size:10px;font-weight:600;letter-spacing:1.2px;color:var(--text-muted);text-transform:uppercase;margin-top:4px}
.metric-value{font-family:'Inter Tight','JetBrains Mono',monospace;font-size:40px;font-weight:800;color:var(--white);line-height:1.05;letter-spacing:-1px;margin-top:2px}
.metric-value .unit{font-size:17px;font-weight:600;color:var(--yellow);margin-left:4px;letter-spacing:0}
.metric-card.highlight .metric-value{color:var(--yellow)}
.metric-note{font-size:12.5px;color:var(--text-muted);line-height:1.6;border-top:1px solid rgba(255,255,255,0.08);padding-top:12px;margin-top:auto}

/* ===== 切片卡 ===== */
.slices{padding:110px 0}
.slices-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.slice-card{position:relative;padding:34px 30px 30px;border-radius:18px;background:rgba(14,40,102,0.68);border:1px solid var(--card-border);display:flex;flex-direction:column;gap:14px;transition:transform .25s,border-color .25s,background .25s;overflow:hidden}
.slice-card::before{content:"";position:absolute;left:0;top:0;right:0;height:2px;background:linear-gradient(90deg,var(--yellow),transparent);transform:scaleX(0);transform-origin:left;transition:transform .35s}
.slice-card:hover{transform:translateY(-5px);border-color:rgba(255,232,0,0.35);background:rgba(18,48,118,0.85)}
.slice-card:hover::before{transform:scaleX(1)}
.slice-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.slice-no{font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:700;color:var(--text-muted);letter-spacing:1.5px}
.conf{font-family:'Inter Tight',sans-serif;font-size:10px;font-weight:700;letter-spacing:1.5px;padding:4px 10px;border-radius:4px;text-transform:uppercase}
.conf.high{color:var(--yellow);background:rgba(255,232,0,0.1);border:1px solid rgba(255,232,0,0.3)}
.conf.mid{color:var(--text-secondary);background:rgba(159,180,224,0.1);border:1px solid rgba(159,180,224,0.25)}
.slice-title{font-family:'Inter Tight','Noto Sans SC',sans-serif;font-size:22px;font-weight:700;line-height:1.3;color:var(--white)}
.slice-en{font-family:'Inter Tight',sans-serif;font-size:11px;font-weight:600;color:var(--text-muted);letter-spacing:1.5px;text-transform:uppercase;margin-top:-6px}
.slice-desc{font-size:15px;color:var(--text-secondary);line-height:1.8}
.slice-tags{font-size:12.5px;color:var(--text-muted);letter-spacing:.2px}
.slice-trend{font-size:13.5px;font-weight:600;color:var(--yellow)}
.btn-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;padding:11px 20px;border-radius:10px;align-self:flex-start;margin-top:auto}
.btn-arrow::after{content:"→";font-size:14px;margin-left:2px;transition:transform .2s}
.btn-arrow:hover::after{transform:translateX(3px)}

/* ===== 三极 / 四大板块 ===== */
.tripolar{padding:110px 0;background:linear-gradient(180deg,rgba(3,13,56,0.5) 0%,rgba(1,5,26,0.5) 100%)}
.tripolar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.pole-card{position:relative;padding:32px 28px 28px;border-radius:18px;background:rgba(8,30,88,0.75);border:1px solid rgba(255,255,255,0.12);display:flex;flex-direction:column;gap:12px;transition:transform .25s,border-color .25s,background .25s;overflow:hidden}
.pole-card::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--yellow),rgba(255,232,0,0))}
.pole-card:hover{transform:translateY(-5px);border-color:rgba(255,232,0,0.4);background:rgba(12,38,108,0.9)}
.pole-no{position:absolute;top:20px;right:22px;font-family:'JetBrains Mono',monospace;font-size:10px;font-weight:700;color:var(--text-muted);letter-spacing:1.5px}
.pole-code{font-family:'Inter Tight','JetBrains Mono',monospace;font-size:11px;font-weight:700;color:var(--yellow);letter-spacing:1.5px;text-transform:uppercase;margin-top:6px}
.pole-title{font-family:'Inter Tight','Noto Sans SC',sans-serif;font-size:21px;font-weight:800;line-height:1.35;color:var(--white);margin-top:2px}
.pole-en{font-family:'Inter Tight',sans-serif;font-size:11px;font-weight:600;color:var(--text-muted);letter-spacing:1.5px;text-transform:uppercase;margin-top:-4px}
.pole-desc{font-size:14.5px;color:var(--text-secondary);line-height:1.85}
.pole-players{font-size:12px;color:var(--text-muted);line-height:1.7;background:rgba(0,0,0,0.18);padding:10px 12px;border-radius:8px;border-left:2px solid rgba(255,232,0,0.35)}
.pole-data{display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(255,255,255,0.1);padding-top:14px;margin-top:auto}
.pole-data-label{font-family:'Inter Tight',sans-serif;font-size:11px;font-weight:600;color:var(--text-muted);letter-spacing:1px;text-transform:uppercase}
.pole-data-val{font-family:'Inter Tight','JetBrains Mono',monospace;font-size:13px;font-weight:700;color:var(--yellow);letter-spacing:.5px}

/* ===== 预测 ===== */
.predictions{padding:110px 0}
.predictions.predictions-alt{background:linear-gradient(180deg,rgba(3,13,56,0.4) 0%,rgba(1,5,26,0.4) 100%)}
.pred-list{display:flex;flex-direction:column;gap:16px}
.pred{display:flex;align-items:center;gap:22px;padding:26px 30px;border-radius:18px;background:rgba(14,40,102,0.68);border:1px solid rgba(255,255,255,0.1);transition:transform .25s,border-color .25s,background .25s;box-shadow:0 8px 28px rgba(0,0,0,0.12)}
.pred:hover{transform:translateX(6px);border-color:rgba(255,232,0,0.3);background:rgba(18,48,118,0.85)}
.pred-no{flex:none;font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:700;color:var(--text-muted);letter-spacing:1.5px;min-width:42px}
.pred-dot{width:8px;height:8px;border-radius:50%;flex:none}
.pred-dot.high{background:var(--yellow);box-shadow:0 0 10px rgba(255,232,0,0.7)}
.pred-dot.mid{background:var(--orange);box-shadow:0 0 10px rgba(255,167,38,0.5)}
.pred-dot.low{background:#8A9BB8}
.pred-body{display:flex;flex-direction:column;gap:6px;flex:1;min-width:0}
.pred-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.pred-title{font-family:'Inter Tight','Noto Sans SC',sans-serif;font-size:18px;font-weight:700;line-height:1.3;color:var(--white)}
.pred-en{font-family:'Inter Tight',sans-serif;font-size:11px;font-weight:600;color:var(--text-muted);letter-spacing:1.5px;text-transform:uppercase}
.pred-evidence{font-size:14.5px;color:var(--text-secondary);line-height:1.8;margin-top:4px}

/* ===== Final CTA ===== */
.final-cta{padding:140px 0;background:linear-gradient(180deg,rgba(2,16,64,0.92) 0%,rgba(1,5,26,0.92) 100%);text-align:center;position:relative;overflow:hidden}
.final-cta::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(2,64,200,0.08) 1px,transparent 1px),linear-gradient(90deg,rgba(2,64,200,0.08) 1px,transparent 1px);background-size:60px 60px;mask-image:radial-gradient(ellipse 70% 60% at 50% 50%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 50%,#000 30%,transparent 80%);pointer-events:none}
.final-cta .inner{position:relative;display:flex;flex-direction:column;align-items:center;gap:24px}
.final-title{font-family:'Inter Tight','Noto Sans SC',sans-serif;font-size:46px;font-weight:800;line-height:1.2;letter-spacing:-1px;color:var(--white)}
.final-sub{font-size:17.5px;color:var(--text-light);line-height:1.85;max-width:640px}
.final-trust{font-family:'Inter Tight','JetBrains Mono',monospace;font-size:11.5px;color:var(--text-muted);letter-spacing:1.5px;text-transform:uppercase;margin-top:6px}

/* ===== Footer ===== */
footer{background:linear-gradient(180deg,#020E2C 0%,#01061A 100%);border-top:1px solid rgba(255,255,255,0.06);padding:88px 0 40px}
.footer-top{display:grid;grid-template-columns:1.25fr 0.95fr 0.85fr 1.5fr;gap:48px;padding-bottom:48px;align-items:start}
.footer-col{position:relative;display:flex;flex-direction:column;gap:18px}
.footer-col:not(:last-child)::after{content:"";position:absolute;right:-24px;top:6px;bottom:6px;width:1px;background:rgba(255,255,255,0.06)}
.footer-col h4{position:relative;display:flex;align-items:center;gap:10px;font-family:'Noto Sans SC','Inter Tight',sans-serif;font-size:14px;font-weight:700;color:var(--white);letter-spacing:.8px;margin-bottom:4px;text-transform:uppercase}
.footer-col h4::before{content:"";display:inline-block;width:4px;height:16px;border-radius:2px;background:var(--yellow)}

/* 品牌列 */
.footer-col-brand{gap:14px;max-width:360px}
.footer-brand-link{display:flex;align-items:center;gap:12px;text-decoration:none}
.footer-brand-link .logo-mark{width:40px;height:40px;border-radius:8px}
.footer-brand-cn{font-family:'Noto Sans SC',sans-serif;font-size:18px;font-weight:800;letter-spacing:.5px;color:var(--white)}
.footer-brand-en{font-family:'Inter Tight','JetBrains Mono',monospace;font-size:13px;font-weight:700;color:var(--yellow);letter-spacing:1.5px;text-transform:uppercase;margin-top:2px}
.footer-company{font-family:'Inter Tight',sans-serif;font-size:10px;font-weight:500;color:var(--text-muted);letter-spacing:.8px;line-height:1.6;text-transform:uppercase}
.footer-tag{display:inline-flex;width:fit-content;padding:5px 12px;border-radius:6px;background:var(--klein-bright);border:1px solid rgba(255,255,255,0.1);font-size:11.5px;font-weight:600;color:var(--white);letter-spacing:.5px;margin-top:2px}
.footer-col-brand .footer-desc{font-size:13px;color:var(--text-secondary);line-height:1.85;max-width:320px;margin-top:4px}

/* 服务领域：1 列纵排 */
.footer-services-grid{display:flex;flex-direction:column;gap:12px}
.footer-service-item{position:relative;display:flex;align-items:center;gap:12px;font-family:'Noto Sans SC','Inter Tight',sans-serif;font-size:13.5px;color:var(--text-secondary);line-height:1.5;padding-left:18px;transition:color .2s,transform .2s}
.footer-service-item::before{content:"";position:absolute;left:0;top:7px;width:6px;height:6px;border-radius:1px;background:var(--yellow);opacity:.8}
.footer-service-item:hover{color:var(--white);transform:translateX(2px)}

/* 快速链接 */
.footer-col-list{gap:12px}
.footer-col-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-family:'Noto Sans SC','Inter Tight',sans-serif;font-size:13.5px;color:var(--text-secondary);transition:color .2s,background .2s,line-height .2s;line-height:1.6;text-decoration:none;padding:8px 10px;margin:-4px -10px;border-radius:6px}
.footer-col-list a:hover{color:var(--yellow);background:rgba(255,255,255,0.03)}
.footer-col-list a .link-no{font-family:'Inter Tight','JetBrains Mono',monospace;font-size:10px;color:var(--text-muted);letter-spacing:.5px;min-width:20px}
.footer-col-list a .link-text{flex:1}
.footer-col-list a::after{content:"→";font-family:'JetBrains Mono',monospace;font-size:11px;opacity:0;transform:translateX(-4px);transition:opacity .2s,transform .2s}
.footer-col-list a:hover::after{opacity:1;transform:translateX(0)}

/* 联系方式 */
.footer-col-contact{gap:14px}
.contact-row{display:flex;flex-direction:column;gap:4px;padding:12px 14px;border-radius:10px;background:rgba(255,255,255,0.02);border:1px solid rgba(255,255,255,0.05);transition:border-color .2s,background .2s}
.contact-row:hover{background:rgba(255,255,255,0.04);border-color:rgba(255,232,0,0.15)}
.contact-label{font-family:'Inter Tight','JetBrains Mono',monospace;font-size:10.5px;font-weight:600;color:var(--text-muted);letter-spacing:1px;text-transform:uppercase}
.contact-value{font-family:'Noto Sans SC','Inter Tight',sans-serif;font-size:13.5px;color:var(--white);line-height:1.65;word-break:break-all}
.contact-value a{color:var(--white);text-decoration:none;border-bottom:1px dashed rgba(255,232,0,0.4);padding-bottom:1px;transition:color .2s,border-bottom-color .2s}
.contact-value a:hover{color:var(--yellow);border-bottom-color:var(--yellow)}
.contact-value.address{font-size:13px;line-height:1.7;color:var(--text-light)}

.footer-divider{height:1px;background:rgba(255,255,255,0.08);margin-bottom:24px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px 18px}
.footer-bottom .copy{font-family:'Inter Tight','Noto Sans SC',sans-serif;font-size:12px;color:var(--text-muted);letter-spacing:.3px}
.footer-bottom .beian{font-family:'Inter Tight','JetBrains Mono',monospace;font-size:11.5px;color:var(--text-muted);display:inline-flex;gap:10px;align-items:center;letter-spacing:.5px}
.footer-bottom .beian a{color:var(--text-muted);text-decoration:none;transition:color .2s}
.footer-bottom .beian a:hover{color:var(--yellow)}

@media (max-width:1140px){.footer-top{grid-template-columns:repeat(2,1fr);gap:48px 40px}.footer-col-brand{max-width:100%}.footer-col:not(:last-child)::after{display:none}.footer-col-contact{grid-column:span 2}.footer-services-grid{gap:10px 32px}}
@media (max-width:640px){.footer-top{grid-template-columns:1fr;gap:40px}.footer-col-contact{grid-column:span 1}.footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}.contact-row{padding:10px 12px}}

/* ===== 权威信息源模块 ===== */
.source-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:32px}
.source-item{display:flex;align-items:flex-start;gap:14px;padding:18px 20px;border-radius:12px;background:rgba(2,16,64,0.45);border:1px solid rgba(255,255,255,0.06);text-decoration:none;transition:border-color .2s,background .2s,transform .2s}
.source-item:hover{border-color:rgba(255,232,0,0.35);background:rgba(2,40,160,0.25);transform:translateY(-2px)}
.source-flag{flex:none;display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;background:rgba(0,40,160,0.25);border:1px solid rgba(0,40,160,0.5);font-family:'Inter Tight','JetBrains Mono',monospace;font-size:11px;font-weight:700;color:var(--yellow);letter-spacing:1px}
.source-body{display:flex;flex-direction:column;gap:4px;min-width:0;flex:1}
.source-name{font-family:'Noto Sans SC','Inter Tight',sans-serif;font-size:14.5px;font-weight:600;color:var(--white);line-height:1.4}
.source-org{font-family:'Inter Tight','JetBrains Mono',monospace;font-size:11px;color:var(--text-muted);letter-spacing:1px;text-transform:uppercase}
.source-arrow{flex:none;color:var(--yellow);font-family:'JetBrains Mono',monospace;font-size:14px;align-self:center;opacity:.6;transition:opacity .2s,transform .2s}
.source-item:hover .source-arrow{opacity:1;transform:translateX(3px)}
@media (max-width:680px){.source-list{grid-template-columns:1fr}}

/* ===== 滚动浮现 ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ============================================================
   详情页组件
   ============================================================ */

/* 页头 hero */
.page-hero{padding:96px 0 64px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-muted);margin-bottom:22px}
.breadcrumb a{color:var(--text-secondary);transition:color .2s}
.breadcrumb a:hover{color:var(--yellow)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--yellow)}
.page-hero-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px}
.page-hero-head .left{display:flex;flex-direction:column;gap:18px;max-width:760px}
.page-hero-title{font-size:48px;font-weight:800;line-height:1.25;letter-spacing:.5px}
.page-hero-sub{font-size:17px;color:var(--text-secondary);line-height:1.85;max-width:680px}

/* 筛选 chips */
.chips{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.chip{padding:8px 16px;border-radius:999px;border:1px solid var(--card-border);background:rgba(255,255,255,0.03);color:var(--text-light);font-size:13px;cursor:pointer;transition:all .18s}
.chip:hover{border-color:rgba(255,255,255,0.3);color:var(--white)}
.chip.active{background:var(--yellow);border-color:var(--yellow);color:var(--ink);font-weight:700}

/* 搜索框 */
.search-box{display:flex;align-items:center;gap:12px;padding:0 18px;height:48px;border-radius:12px;background:var(--card-bg);border:1px solid var(--card-border);max-width:420px;transition:border-color .2s}
.search-box:focus-within{border-color:rgba(255,232,0,0.5)}
.search-box svg{flex:none;opacity:.6}
.search-box input{flex:1;background:transparent;border:none;outline:none;color:var(--white);font-size:14px;font-family:var(--font-cn)}
.search-box input::placeholder{color:var(--text-muted)}

/* 关键词 tag */
.tag-pill{display:inline-block;padding:4px 11px;border-radius:999px;font-size:12px;background:rgba(255,232,0,0.1);border:1px solid rgba(255,232,0,0.25);color:var(--yellow)}

/* 详情趋势卡 */
.trend-card{padding:32px 30px;border-radius:16px;background:var(--card-bg);border:1px solid var(--card-border);display:flex;flex-direction:column;gap:20px;transition:transform .2s,border-color .2s}
.trend-card:hover{transform:translateY(-4px);border-color:rgba(255,232,0,0.35)}
.trend-card .kpis{display:flex;gap:32px;flex-wrap:wrap}
.trend-card .kpi b{display:block;font-family:var(--font-num);font-size:24px;color:var(--white);font-weight:800}
.trend-card .kpi span{font-size:12.5px;color:var(--text-muted)}
.trend-card .kpi.hot b{color:var(--yellow)}
.jobs{font-size:13.5px;color:var(--text-secondary);border-top:1px solid rgba(255,255,255,0.08);padding-top:14px;line-height:1.8}
.jobs b{color:var(--text-light);font-weight:600}

/* mini 柱状图 */
.mini-bars{display:flex;align-items:flex-end;gap:6px;height:56px}
.mini-bars i{width:14px;border-radius:3px 3px 0 0;background:linear-gradient(180deg,#0240C8,#1E3A8A);transition:height .4s}
.mini-bars i:last-child{background:var(--yellow)}
.mini-bars i:hover{opacity:.85}

/* 方法论说明 */
.method-note{display:flex;gap:18px;align-items:flex-start;padding:22px 26px;border-radius:16px;background:rgba(2,40,160,0.18);border:1px solid rgba(2,64,200,0.35)}
.method-note .ic{width:36px;height:36px;border-radius:9px;background:var(--klein-bright);display:flex;align-items:center;justify-content:center;flex:none;font-weight:700;color:var(--yellow);font-size:15px}
.method-note .txt{font-size:14px;color:var(--text-secondary);line-height:1.85}
.method-note .txt b{color:var(--white)}

/* 合作模式 */
.mode-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.mode-card{position:relative;padding:32px 28px 28px;border-radius:18px;background:rgba(14,40,102,0.68);border:1px solid var(--card-border);display:flex;flex-direction:column;gap:10px;transition:transform .25s,border-color .25s,background .25s;overflow:hidden}
.mode-card::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,var(--yellow),rgba(255,232,0,0))}
.mode-card:hover{transform:translateY(-5px);border-color:rgba(255,232,0,0.35);background:rgba(18,48,118,0.85)}
.mode-no{position:absolute;top:20px;right:22px;font-family:'JetBrains Mono',monospace;font-size:10px;font-weight:700;color:var(--text-muted);letter-spacing:1.5px}
.mode-card .ic{width:40px;height:40px;border-radius:10px;background:rgba(2,64,200,0.35);border:1px solid rgba(64,140,255,0.3);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--yellow);font-family:'Inter Tight','JetBrains Mono',monospace;font-weight:700;margin-top:6px}
.mode-card h3{font-family:'Inter Tight','Noto Sans SC',sans-serif;font-size:19px;font-weight:700;color:var(--white);margin-top:6px}
.mode-en{font-family:'Inter Tight',sans-serif;font-size:11px;font-weight:600;color:var(--text-muted);letter-spacing:1.5px;text-transform:uppercase;margin-top:-2px}
.mode-card p{font-size:14px;color:var(--text-secondary);line-height:1.8;margin-top:6px}

/* 数据表格 */
.table-wrap{border-radius:16px;border:1px solid var(--card-border);background:var(--card-bg);overflow:hidden}
.table-wrap table{width:100%;border-collapse:collapse;font-size:14.5px}
.table-wrap thead th{text-align:left;padding:18px 22px;font-size:13px;font-weight:600;color:var(--text-muted);background:rgba(2,40,160,0.15);border-bottom:1px solid var(--card-border);letter-spacing:.5px}
.table-wrap tbody td{padding:18px 22px;border-bottom:1px solid rgba(255,255,255,0.06);color:var(--text-light)}
.table-wrap tbody tr:last-child td{border-bottom:none}
.table-wrap tbody tr{transition:background .15s}
.table-wrap tbody tr:hover{background:rgba(255,255,255,0.03)}
.tbl-school{font-weight:600;color:var(--white)}
.status{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;padding:4px 12px;border-radius:999px}
.status::before{content:"";width:6px;height:6px;border-radius:50%}
.status.signed{color:var(--green);background:rgba(74,222,128,0.12);border:1px solid rgba(74,222,128,0.3)}
.status.signed::before{background:var(--green)}
.status.negotiating{color:var(--blue);background:rgba(127,176,255,0.12);border:1px solid rgba(127,176,255,0.3)}
.status.negotiating::before{background:var(--blue)}
.status.pending{color:var(--yellow);background:rgba(255,232,0,0.1);border:1px solid rgba(255,232,0,0.3)}
.status.pending::before{background:var(--yellow)}
.tbl-link{color:var(--yellow);font-size:13px;font-weight:600;cursor:pointer}
.tbl-link:hover{text-decoration:underline}

/* 切片库卡片（带更新时间） */
.lib-card{padding:28px 26px;border-radius:16px;background:var(--card-bg);border:1px solid var(--card-border);display:flex;flex-direction:column;gap:16px;transition:transform .2s,border-color .2s,background .2s}
.lib-card:hover{transform:translateY(-4px);border-color:rgba(255,232,0,0.35);background:var(--card-bg-strong)}
.lib-card .head{display:flex;align-items:center;justify-content:space-between}
.lib-card .head .no{font-size:14px;font-weight:700;color:var(--yellow);font-family:var(--font-num)}
.lib-card .head .update{font-size:12.5px;color:var(--text-muted)}
.lib-tags{display:flex;gap:8px;flex-wrap:wrap}
.lib-footer{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:14px;border-top:1px solid rgba(255,255,255,0.08)}
.lib-footer .actions{display:flex;gap:16px}
.lib-footer .actions span{font-size:13.5px;color:var(--text-secondary);cursor:pointer;display:inline-flex;align-items:center;gap:5px;transition:color .2s}
.lib-footer .actions span:hover{color:var(--yellow)}
.lib-footer .actions span.fav-on{color:var(--yellow)}

/* ===== 关于我们页 ===== */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.value-card{padding:32px 30px;border-radius:16px;background:var(--card-bg);border:1px solid var(--card-border);display:flex;flex-direction:column;gap:14px;transition:transform .2s,border-color .2s}
.value-card:hover{transform:translateY(-4px);border-color:rgba(255,232,0,0.35)}
.value-card .num{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--yellow);letter-spacing:1px}
.value-card h3{font-size:20px;font-weight:700;line-height:1.4}
.value-card p{font-size:14.5px;color:var(--text-secondary);line-height:1.8}

.timeline{display:flex;flex-direction:column;position:relative;padding-left:32px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--yellow),rgba(2,64,200,0.35))}
.tl-item{position:relative;padding-bottom:36px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-29px;top:7px;width:12px;height:12px;border-radius:50%;background:var(--yellow);box-shadow:0 0 12px rgba(255,232,0,0.6)}
.tl-item .year{font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--yellow);letter-spacing:1px}
.tl-item h4{font-size:17px;font-weight:700;margin:4px 0 8px}
.tl-item p{font-size:14.5px;color:var(--text-secondary);line-height:1.8}

.contact-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.contact-card{padding:28px 24px;border-radius:16px;background:var(--card-bg);border:1px solid var(--card-border);display:flex;flex-direction:column;gap:10px;transition:transform .2s,border-color .2s}
.contact-card:hover{transform:translateY(-4px);border-color:rgba(255,232,0,0.35)}
.contact-card .ic{width:42px;height:42px;border-radius:11px;background:rgba(2,64,200,0.3);display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:10px}
.contact-card h4{font-size:13px;font-weight:600;color:var(--text-secondary)}
.contact-card .val{font-size:16px;font-weight:700;color:var(--white);font-family:var(--font-num);word-break:break-all}

/* ===== Toast ===== */
.toast{
  position:fixed;left:50%;bottom:40px;transform:translateX(-50%) translateY(20px);
  background:rgba(2,24,74,0.95);border:1px solid rgba(255,232,0,0.4);color:var(--white);
  padding:13px 22px;border-radius:12px;font-size:14px;z-index:1000;opacity:0;pointer-events:none;
  box-shadow:0 12px 32px rgba(0,0,0,0.5);transition:opacity .25s,transform .25s;
  display:flex;align-items:center;gap:9px;max-width:calc(100vw - 48px);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--yellow);box-shadow:0 0 8px var(--yellow);flex:none}

/* ===== 弹层 Modal ===== */
.modal-overlay{
  position:fixed;inset:0;z-index:900;background:rgba(1,5,26,0.78);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  display:none;align-items:center;justify-content:center;padding:24px;
}
.modal-overlay.show{display:flex}
.modal{
  width:min(560px,100%);max-height:calc(100vh - 96px);overflow-y:auto;
  background:linear-gradient(160deg,#0D2470 0%,#061757 45%,#030D38 100%);
  border:1px solid rgba(255,255,255,0.16);border-radius:18px;padding:32px;
  animation:modalIn .25s ease;
}
@keyframes modalIn{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:22px}
.modal-head h3{font-size:22px;font-weight:800;line-height:1.3}
.modal-close{
  width:34px;height:34px;border-radius:9px;flex:none;cursor:pointer;
  background:rgba(255,255,255,0.06);border:1px solid var(--card-border);color:var(--text-light);
  display:flex;align-items:center;justify-content:center;font-size:18px;transition:all .18s;
}
.modal-close:hover{background:rgba(255,232,0,0.12);color:var(--yellow);border-color:rgba(255,232,0,0.4)}

/* ===== 表单控件（弹层内复用） ===== */
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:13px;font-weight:600;color:var(--text-light)}
.field label em{color:var(--yellow);font-style:normal;margin-left:2px}
.input,.select,.textarea{
  width:100%;background:rgba(1,21,60,0.5);border:1px solid var(--card-border);
  border-radius:11px;color:var(--white);font-size:14px;font-family:var(--font-cn);
  padding:12px 14px;outline:none;transition:border-color .18s,box-shadow .18s;
}
.input:focus,.select:focus,.textarea:focus{border-color:rgba(255,232,0,0.55);box-shadow:0 0 0 3px rgba(255,232,0,0.12)}
.input::placeholder,.textarea::placeholder{color:var(--text-muted)}
.select{appearance:none;-webkit-appearance:none;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%239FB4E0' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}
.select option{background:#061757;color:var(--white)}
.textarea{min-height:92px;resize:vertical;line-height:1.6}
.form-actions{display:flex;gap:12px;margin-top:6px}
.form-actions .btn{flex:1}
.form-tip{font-size:12px;color:var(--text-muted);text-align:center;margin-top:14px;line-height:1.5}

/* ===== 院校详情弹层 ===== */
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px;margin-bottom:20px}
.detail-item{display:flex;flex-direction:column;gap:4px;padding:13px 15px;border-radius:11px;background:rgba(2,40,160,0.16);border:1px solid rgba(2,64,200,0.28)}
.detail-item .k{font-size:12px;color:var(--text-muted)}
.detail-item .v{font-size:14px;font-weight:600;color:var(--white);line-height:1.5}
.detail-block{margin-bottom:16px}
.detail-block h4{font-size:13px;font-weight:700;color:var(--yellow);margin-bottom:8px;display:flex;align-items:center;gap:7px}
.detail-block h4::before{content:"";width:14px;height:2px;background:var(--yellow);border-radius:2px}
.detail-block p,.detail-block li{font-size:13.5px;color:var(--text-secondary);line-height:1.75}
.detail-block ul{list-style:none;padding:0}
.detail-block li{padding-left:18px;position:relative}
.detail-block li::before{content:"";position:absolute;left:2px;top:10px;width:6px;height:6px;border-radius:50%;background:var(--blue)}

/* ===== 首页切片卡可点击态 ===== */
.slice-card{cursor:pointer;position:relative}
.slice-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px solid rgba(255,255,255,0.08)}
.slice-card .arrow{font-size:13px;font-weight:600;color:var(--text-muted);transition:transform .2s,color .2s;display:inline-flex;align-items:center;gap:4px}
.slice-card:hover .arrow{transform:translateX(3px);color:var(--yellow)}

/* ===== AAM · 未来空中交通 ===== */
.aam{padding:88px 0;background:linear-gradient(180deg,rgba(3,13,56,0.5) 0%,rgba(1,5,26,0.5) 100%)}
.aam-feature{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:stretch}
.aam-left{display:flex;flex-direction:column;gap:24px}
.aam-right{display:flex;flex-direction:column;gap:24px;justify-content:center}

.aam-def{position:relative;padding:30px 32px;border-radius:16px;background:var(--card-bg-strong);border:1px solid var(--card-border-yellow);overflow:hidden}
.aam-def::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--yellow)}
.aam-def-tag{display:inline-flex;align-items:center;gap:7px;font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:1px;color:var(--yellow);margin-bottom:14px}
.aam-def-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--yellow);box-shadow:0 0 8px var(--yellow)}
.aam-def p{font-size:16px;line-height:1.85;color:var(--text-light)}

.aam-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.aam-stat{padding:22px 18px;border-radius:16px;background:var(--card-bg);border:1px solid var(--card-border);display:flex;flex-direction:column;gap:8px;transition:transform .2s,border-color .2s}
.aam-stat:hover{transform:translateY(-3px);border-color:rgba(255,232,0,0.35)}
.aam-stat b{font-family:var(--font-num);font-size:28px;font-weight:800;color:var(--white);line-height:1.05;letter-spacing:-.5px}
.aam-stat b span{font-size:14px;font-weight:700;color:var(--yellow);margin-left:2px;letter-spacing:0}
.aam-stat small{font-size:12.5px;color:var(--text-muted)}

.aam-rail{display:flex;flex-direction:column;position:relative;padding-left:26px}
.aam-rail::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--yellow),rgba(2,64,200,0.3))}
.aam-rail-item{position:relative;padding-bottom:22px}
.aam-rail-item:last-child{padding-bottom:0}
.aam-rail-item::before{content:"";position:absolute;left:-25px;top:6px;width:10px;height:10px;border-radius:50%;background:var(--yellow);box-shadow:0 0 10px rgba(255,232,0,0.55)}
.aam-rail-item span{font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--yellow);letter-spacing:.5px}
.aam-rail-item p{font-size:14px;color:var(--text-secondary);line-height:1.5;margin-top:2px}

/* AAM 专题页：技术支柱 */
.pillar-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pillar-card{padding:28px;border-radius:var(--radius);background:rgba(3,24,80,0.72);border:1px solid var(--card-border);display:flex;flex-direction:column;gap:14px;transition:transform .2s,border-color .2s}
.pillar-card:hover{transform:translateY(-4px);border-color:rgba(255,232,0,0.4)}
.pillar-card .ic{width:50px;height:50px;border-radius:13px;background:linear-gradient(135deg,rgba(255,232,0,0.18),rgba(2,64,200,0.3));border:1px solid rgba(255,232,0,0.3);display:flex;align-items:center;justify-content:center;font-size:22px}
.pillar-card h3{font-size:18px;font-weight:700}
.pillar-card p{font-size:13.5px;color:var(--text-secondary);line-height:1.7}
.pillar-card .role{font-size:12px;color:var(--yellow);border-top:1px solid rgba(255,255,255,0.08);padding-top:12px;font-weight:600}

/* AAM 挑战 */
.challenge-list{display:flex;flex-direction:column;gap:16px}
.challenge{display:flex;gap:18px;align-items:flex-start;padding:24px 26px;border-radius:var(--radius);background:var(--card-bg);border:1px solid rgba(255,255,255,0.1);transition:transform .2s,border-color .2s}
.challenge:hover{transform:translateX(4px);border-color:rgba(255,255,255,0.2)}
.challenge .mark{width:40px;height:40px;border-radius:10px;flex:none;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;background:rgba(255,167,38,0.14);border:1px solid rgba(255,167,38,0.35);color:var(--orange)}
.challenge-body h4{font-size:16px;font-weight:700;margin-bottom:6px}
.challenge-body p{font-size:13.5px;color:var(--text-secondary);line-height:1.7}

/* AAM 参考文献 */
.ref-list{display:flex;flex-direction:column;gap:10px;padding:22px 26px;border-radius:var(--radius);background:rgba(2,40,160,0.14);border:1px solid rgba(2,64,200,0.3)}
.ref-item{display:flex;gap:12px;font-size:13px;color:var(--text-secondary);line-height:1.6}
.ref-item .no{font-family:var(--font-num);font-weight:700;color:var(--yellow);flex:none;min-width:20px}

/* AAM 品牌标识专区 */
.brand-mark-card{margin-top:32px;display:flex;gap:36px;align-items:center;padding:28px;border-radius:var(--radius);background:linear-gradient(135deg,rgba(2,40,160,.18),rgba(1,21,60,.55));border:1px solid rgba(159,180,224,.18)}
.brand-mark-card .logo-full{width:240px;height:auto;border-radius:14px;box-shadow:0 18px 40px rgba(0,0,0,.35);flex:none}
.brand-mark-meta{display:flex;flex-direction:column;gap:14px;flex:1;min-width:0}
.brand-mark-meta .row{display:flex;gap:14px;align-items:baseline;font-size:14px;line-height:1.6}
.brand-mark-meta .row b{color:var(--yellow);font-weight:600;min-width:64px;font-size:13px;letter-spacing:.5px}
.brand-mark-meta .row span{color:var(--text-light)}
.brand-mark-meta .row .swatch{display:inline-flex;align-items:center;gap:6px;margin-right:10px;font-family:var(--font-num)}
.brand-mark-meta .row .swatch i{width:14px;height:14px;border-radius:3px;display:inline-block}
@media(max-width:640px){.brand-mark-card{flex-direction:column;text-align:left}.brand-mark-card .logo-full{width:200px}}

/* ===== 品牌使用规范 ===== */
.bg-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.bg-card{padding:26px;border-radius:var(--radius);background:var(--card-bg);border:1px solid rgba(255,255,255,0.1);display:flex;flex-direction:column;gap:16px}
.bg-card h3{font-size:17px;font-weight:700}
.bg-card p{font-size:13.5px;color:var(--text-secondary);line-height:1.7}
.logo-stage{display:flex;gap:20px;flex-wrap:wrap}
.logo-tile{flex:1;min-width:220px;border-radius:var(--radius);padding:36px 28px;display:flex;flex-direction:column;align-items:center;gap:18px;border:1px solid rgba(255,255,255,0.1)}
.logo-tile.dark{background:#01051A}
.logo-tile.light{background:#F5F7FB}
.logo-tile.mid{background:linear-gradient(135deg,#172E8C,#061757)}
.logo-tile img.mark{width:88px;height:88px}
.logo-tile img.full{width:220px;height:auto;border-radius:12px;box-shadow:0 14px 30px rgba(0,0,0,.3)}
.logo-tile .cap{font-size:12px;letter-spacing:.5px;color:var(--text-muted)}
.logo-tile.light .cap{color:#6E82A8}
.logo-tile .cap b{color:var(--yellow)}
.clear-demo{position:relative;border-radius:var(--radius);padding:56px;display:flex;align-items:center;justify-content:center;background:rgba(1,21,60,.5);border:1px dashed rgba(255,232,0,.45)}
.clear-demo .zone{position:absolute;border:1px dashed rgba(255,255,255,.35);border-radius:12px}
.clear-demo img{width:80px;height:80px;position:relative;z-index:2}
.clear-demo .label{position:absolute;font-size:11px;color:var(--yellow);letter-spacing:.5px}
.swatch-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.swatch-card{border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,0.1);background:var(--card-bg)}
.swatch-chip{height:110px;display:flex;align-items:flex-end;padding:14px}
.swatch-chip span{font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.5px}
.swatch-card .meta{padding:16px 18px;display:flex;flex-direction:column;gap:4px}
.swatch-card .meta h4{font-size:15px;font-weight:700}
.swatch-card .meta p{font-size:12.5px;color:var(--text-secondary);line-height:1.6}
.swatch-card .meta code{font-family:var(--font-num);font-size:12px;color:var(--text-light);background:rgba(255,255,255,.06);padding:2px 7px;border-radius:5px;display:inline-block;margin-top:2px}
.ratio-bar{display:flex;height:22px;border-radius:8px;overflow:hidden;margin:8px 0 6px}
.ratio-bar i{display:block;height:100%}
.ratio-label{display:flex;justify-content:space-between;font-size:12px;color:var(--text-secondary)}
.font-card{padding:28px;border-radius:var(--radius);background:var(--card-bg);border:1px solid rgba(255,255,255,0.1);display:flex;flex-direction:column;gap:14px}
.font-card .fn{font-size:13px;color:var(--yellow);letter-spacing:.5px;font-weight:600}
.font-card .sample{font-size:34px;font-weight:800;line-height:1.2}
.font-card .sample.en{font-family:var(--font-num);font-size:28px;letter-spacing:1px}
.font-card .desc{font-size:13px;color:var(--text-secondary);line-height:1.7}
.usage-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.usage-item{border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,0.1);background:var(--card-bg)}
.usage-item .stage{height:150px;display:flex;align-items:center;justify-content:center;position:relative}
.usage-item .stage img{width:60px;height:60px}
.usage-item .stage.busy{background:linear-gradient(135deg,#ff9a3d,#ff4d6d 50%,#7b2ff7)}
.usage-item .stage.lowcontrast{background:#0d2470}
.usage-item .stage.yellowbg{background:var(--yellow)}
.usage-item .tag{position:absolute;top:10px;left:10px;font-size:11px;font-weight:700;padding:3px 9px;border-radius:6px;letter-spacing:.5px}
.usage-item.do .tag{background:rgba(74,222,128,.18);color:#4ADE80;border:1px solid rgba(74,222,128,.4)}
.usage-item.dont .tag{background:rgba(255,77,109,.18);color:#FF6B81;border:1px solid rgba(255,77,109,.4)}
.usage-item .cap{padding:14px 18px;font-size:13px;line-height:1.6;border-top:1px solid rgba(255,255,255,.07)}
.usage-item .cap b{color:var(--text-light)}
.usage-item .cap span{color:var(--text-secondary)}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.dl-card{display:flex;align-items:center;gap:16px;padding:20px;border-radius:var(--radius);background:var(--card-bg);border:1px solid rgba(255,255,255,0.1);transition:transform .2s,border-color .2s}
.dl-card:hover{transform:translateY(-3px);border-color:rgba(255,232,0,.4)}
.dl-card .fic{width:46px;height:46px;border-radius:10px;flex:none;display:flex;align-items:center;justify-content:center;font-size:22px;background:rgba(255,232,0,.1)}
.dl-card .meta{display:flex;flex-direction:column;gap:2px;min-width:0}
.dl-card .meta b{font-size:14px}
.dl-card .meta span{font-size:12px;color:var(--text-muted)}
.guide-note{padding:18px 22px;border-radius:var(--radius);background:rgba(255,232,0,.08);border:1px solid rgba(255,232,0,.25);font-size:13.5px;color:var(--text-light);line-height:1.7}
.guide-note b{color:var(--yellow)}
@media(max-width:640px){
  .bg-grid,.swatch-grid,.usage-grid,.dl-grid{grid-template-columns:1fr}
  .logo-stage{flex-direction:column}
}

/* ===== 首页四大板块导览 ===== */
.nav-block{
  display:flex;flex-direction:column;gap:12px;padding:28px 24px;
  border-radius:var(--radius);background:linear-gradient(180deg,rgba(2,40,160,0.18),rgba(2,40,160,0.05));
  border:1px solid rgba(2,64,200,0.28);text-decoration:none;color:var(--text);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease,background .25s ease;
  position:relative;overflow:hidden;
}
.nav-block::after{
  content:"";position:absolute;inset:auto 0 0 0;height:3px;
  background:linear-gradient(90deg,var(--klein),var(--yellow));
  transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.nav-block:hover{transform:translateY(-4px);border-color:var(--yellow);box-shadow:0 12px 32px rgba(0,40,160,0.32);background:linear-gradient(180deg,rgba(2,40,160,0.32),rgba(2,40,160,0.10))}
.nav-block:hover::after{transform:scaleX(1)}
.nav-block-no{
  font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:1.5px;
  color:var(--yellow);
}
.nav-block h3{font-size:20px;font-weight:700;color:#fff;line-height:1.3;margin:0}
.nav-block p{font-size:13px;color:var(--text-secondary);line-height:1.65;margin:0;flex:1}
.nav-block-arrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--yellow);
  font-family:var(--font-num);transition:transform .25s ease;
}
.nav-block:hover .nav-block-arrow{transform:translateX(4px)}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .hero{padding:80px 0 72px}
  .hero-inner{grid-template-columns:1fr;gap:48px}
  .hero-title{font-size:44px}
  .hero-visual{height:420px}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .slices-grid{grid-template-columns:repeat(2,1fr)}
  .tripolar-grid{grid-template-columns:1fr}
  .aam-feature{grid-template-columns:1fr}
  .aam-stats{grid-template-columns:repeat(2,1fr)}
  .pillar-grid{grid-template-columns:1fr}
  .mode-grid{grid-template-columns:repeat(2,1fr)}
  .value-grid,.contact-cards{grid-template-columns:repeat(3,1fr)}
  [data-page-node-id="NAVBLOCKS_grid"]{grid-template-columns:repeat(2,1fr) !important}
  nav{gap:20px}
  .page-hero-head{flex-direction:column;align-items:flex-start}
  .demo-layout{grid-template-columns:1fr}
  .demo-aside{position:static}
}
@media(max-width:640px){
  .container{padding:0 24px}
  .hero{padding:56px 0 48px}
  .hero-title{font-size:34px}
  .hero-visual{height:340px}
  .hero-trust{gap:18px}
  .page-hero-title{font-size:30px}
  .sec-title{font-size:26px}
  .metrics-grid,.slices-grid,.mode-grid,.value-grid,.contact-cards{grid-template-columns:1fr}
  .aam-stats{grid-template-columns:repeat(2,1fr)}
  nav{display:none}
  .header-login{display:none}
  .footer-top{flex-direction:column;gap:40px}
  .footer-nav{gap:40px}
  .footer-bottom{flex-direction:column;gap:12px;align-items:flex-start}
  .table-wrap{overflow-x:auto}
  .table-wrap table{min-width:640px}
  .form-card{padding:28px 22px}
  .form-grid{grid-template-columns:1fr}
}

/* ===== 打印 / PDF 导出适配 ===== */
@media print{
  *{-webkit-print-color-adjust:exact !important;print-color-adjust:exact !important}
  body{background-attachment:scroll !important}
}

/* =============================================================
   V2 · 国际化科技感首页样式
   基于 dark-stream-glow-gradient + glass-vision-os-aurora
   适配克莱因蓝主色：#0028A0 + 荧光黄强调 #FFE800
   ============================================================= */

body.v2{
  font-family:'Inter','Sarasa Gothic SC','Microsoft YaHei',sans-serif;
  background:#01153C;
  color:#fff;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

body.v2 .container{max-width:1320px;margin:0 auto;padding:0 32px}

/* ---------- Header ---------- */
.v2-header{
  position:sticky;top:0;z-index:100;
  background:rgba(1,21,60,0.7);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(2,64,200,0.2);
}
.v2-header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:32px}
.v2-header .brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none}
.v2-header .logo-mark{width:32px;height:32px}
.v2-header .brand-text{display:flex;flex-direction:column;line-height:1.1}
.v2-header .brand-cn{font-family:'Noto Serif SC',serif;font-weight:900;font-size:18px;color:#fff;letter-spacing:1px}
.v2-header .brand-sub{font-family:'Inter Tight',sans-serif;font-size:10px;font-weight:600;color:rgba(255,232,0,0.8);letter-spacing:1.5px;margin-top:2px;text-transform:uppercase}

.v2-nav{display:flex;align-items:center;gap:24px;flex:1;justify-content:center}
.v2-nav a{font-family:'Inter Tight',sans-serif;font-size:12px;font-weight:600;color:rgba(255,255,255,0.6);text-decoration:none;letter-spacing:1px;text-transform:uppercase;transition:color .2s;padding:8px 4px;position:relative;white-space:nowrap}
.v2-nav a:hover{color:#fff}
.v2-nav a.active{color:#FFE800}
.v2-nav a.active::after{content:'';position:absolute;left:0;right:0;bottom:-1px;height:2px;background:#FFE800}

.v2-header-actions{display:flex;align-items:center;gap:16px}
.v2-header-login{font-size:13px;color:rgba(255,255,255,0.7);text-decoration:none;padding:8px 12px;transition:color .2s}
.v2-header-login:hover{color:#fff}

/* ---------- Buttons ---------- */
.v2-btn-primary{
  display:inline-flex;align-items:center;gap:10px;
  background:#FFE800;color:#01153C;
  font-family:'Inter Tight',sans-serif;font-weight:700;font-size:13px;
  padding:11px 22px;border-radius:99px;text-decoration:none;letter-spacing:.5px;
  box-shadow:0 0 0 1px rgba(255,232,0,0.4),0 8px 28px rgba(255,232,0,0.25);
  transition:transform .2s,box-shadow .2s;
}
.v2-btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,232,0,0.6),0 12px 36px rgba(255,232,0,0.35)}
.v2-btn-xl{padding:16px 32px;font-size:14px}

.v2-btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  background:transparent;color:#fff;
  font-family:'Inter Tight',sans-serif;font-weight:600;font-size:13px;
  padding:10px 22px;border-radius:99px;text-decoration:none;letter-spacing:.5px;
  border:1px solid rgba(255,255,255,0.25);
  transition:border-color .2s,background .2s;
}
.v2-btn-ghost:hover{border-color:rgba(255,232,0,0.6);background:rgba(255,232,0,0.05)}
.v2-btn-ghost.v2-btn-xl{padding:15px 30px}

/* ---------- Eyebrow ---------- */
.v2-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:700;
  color:rgba(255,232,0,0.9);letter-spacing:2px;text-transform:uppercase;
  padding:8px 14px;border:1px solid rgba(255,232,0,0.3);border-radius:99px;
  background:rgba(255,232,0,0.06);
}
.v2-eyebrow-static{display:inline-flex}
.v2-pulse{
  width:6px;height:6px;border-radius:50%;background:#FFE800;
  box-shadow:0 0 12px #FFE800;
  animation:v2-pulse 2s infinite;
}
@keyframes v2-pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.4;transform:scale(0.85)}
}

/* =============================================================
   HERO
   ============================================================= */
.v2-hero{
  position:relative;
  padding:96px 0 0;
  overflow:hidden;
  background:radial-gradient(ellipse at 30% 0%, rgba(2,40,160,0.55) 0%, transparent 55%),
             radial-gradient(ellipse at 80% 30%, rgba(0,200,255,0.18) 0%, transparent 50%),
             radial-gradient(ellipse at 50% 100%, rgba(255,232,0,0.08) 0%, transparent 50%),
             #01153C;
  min-height:880px;
}
.v2-hero-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(2,64,200,0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(2,64,200,0.12) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse at 50% 30%, black 0%, transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 30%, black 0%, transparent 70%);
  pointer-events:none;
}
.v2-hero-orb{
  position:absolute;border-radius:50%;filter:blur(90px);
  pointer-events:none;opacity:.4;
}
.v2-hero-orb-1{width:520px;height:520px;background:#0028A0;top:-120px;right:-160px}
.v2-hero-orb-2{width:420px;height:420px;background:#00C8FF;bottom:180px;left:-100px;opacity:.18}
.v2-hero-orb-3{width:320px;height:320px;background:#FFE800;top:40%;right:25%;opacity:.08}
.v2-hero-noise{
  position:absolute;inset:0;opacity:.025;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.v2-hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:center;
  padding-bottom:60px;
}
.v2-hero-left{display:flex;flex-direction:column;gap:28px}
.v2-hero-title{
  font-family:'Inter Tight','Noto Serif SC',serif;
  font-size:60px;line-height:1.12;font-weight:800;
  letter-spacing:-1px;color:#fff;margin:0;
}
.v2-hero-title .v2-en{display:block;background:linear-gradient(135deg,#fff 0%,#fff 50%,#FFE800 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.v2-hero-title .v2-en em{font-style:normal;background:linear-gradient(135deg,#FFE800 0%,#FFA500 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.v2-hero-title .v2-cn{display:block;font-family:'Noto Serif SC',serif;font-weight:700;font-size:28px;line-height:1.5;letter-spacing:1px;color:rgba(255,255,255,0.85);margin-top:14px}

.v2-hero-sub{
  font-size:16px;line-height:1.9;color:rgba(255,255,255,0.7);
  max-width:600px;letter-spacing:.3px;
}

.v2-hero-ctas{display:flex;gap:14px;margin-top:12px;flex-wrap:wrap}

.v2-hero-trust{display:flex;align-items:center;gap:24px;margin-top:28px;padding-top:28px;border-top:1px solid rgba(2,64,200,0.25)}
.v2-trust-item{display:flex;flex-direction:column;gap:6px}
.v2-trust-num{font-family:'JetBrains Mono',monospace;font-size:26px;font-weight:700;color:#FFE800;line-height:1}
.v2-trust-lbl{font-size:12px;color:rgba(255,255,255,0.55);letter-spacing:1px;text-transform:uppercase}
.v2-trust-sep{width:1px;height:32px;background:rgba(2,64,200,0.4)}

/* ---------- 数据展示卡（替代 HUD 仪表盘） ---------- */
.v2-hero-right{
  position:relative;
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
}
.v2-hud{
  position:relative;
  padding:28px 26px;
  background:linear-gradient(180deg, rgba(0,40,160,0.45) 0%, rgba(0,20,80,0.2) 100%);
  border:1px solid rgba(2,64,200,0.35);
  border-radius:18px;
  transition:transform .25s,border-color .25s,background .25s;
}
.v2-hud:hover{transform:translateY(-3px);border-color:rgba(255,232,0,0.45);background:linear-gradient(180deg, rgba(0,40,160,0.55) 0%, rgba(0,20,80,0.3) 100%)}
.v2-hud-bar{
  position:absolute;top:0;left:24px;right:24px;height:2px;
  background:linear-gradient(90deg, #FFE800, transparent);
  border-radius:2px;
}
.v2-hud-bar-2{background:linear-gradient(90deg, #00C8FF, transparent)}
.v2-hud-bar-3{background:linear-gradient(90deg, #FFE800, transparent)}
.v2-hud-bar-4{background:linear-gradient(90deg, #FFA726, transparent)}

.v2-hud-tag{font-size:13px;font-weight:600;color:rgba(255,232,0,0.85);letter-spacing:.5px;margin-bottom:14px}
.v2-hud-num{
  font-family:'JetBrains Mono',monospace;
  font-size:38px;font-weight:700;color:#fff;line-height:1.05;
  margin-bottom:10px;letter-spacing:-1px;
}
.v2-hud-num span{font-size:18px;color:rgba(255,232,0,0.95);margin-left:4px;font-weight:700}
.v2-hud-lbl{font-size:14px;color:rgba(255,255,255,0.85);line-height:1.55;margin-bottom:12px}
.v2-hud-meta{
  display:flex;align-items:center;gap:7px;
  font-size:12px;color:rgba(255,255,255,0.5);letter-spacing:.3px;
  padding-top:12px;border-top:1px solid rgba(2,64,200,0.2);
}
.v2-hud-dot{width:6px;height:6px;border-radius:50%;background:#FFE800}
.v2-hud-dot-2{background:#00C8FF}
.v2-hud-dot-3{background:#FFE800}
.v2-hud-dot-4{background:#FFA726}

/* ---------- Marquee ---------- */
.v2-hero-marquee{
  position:relative;z-index:2;
  padding:18px 0;border-top:1px solid rgba(2,64,200,0.2);border-bottom:1px solid rgba(2,64,200,0.2);
  background:rgba(0,20,80,0.3);
  overflow:hidden;
}
.v2-marquee-track{
  display:inline-flex;gap:48px;white-space:nowrap;
  font-family:'JetBrains Mono',monospace;font-size:12px;color:rgba(255,255,255,0.5);letter-spacing:1px;
  animation:v2-marquee 60s linear infinite;
}
@keyframes v2-marquee{
  0%{transform:translateX(0)}
  100%{transform:translateX(-50%)}
}

/* =============================================================
   SECTION COMMONS
   ============================================================= */
.v2-section{padding:88px 0;position:relative}
.v2-section-dark{background:linear-gradient(180deg, #01153C 0%, #001F7A 100%)}

.v2-section-head{max-width:780px;margin:0 auto 56px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px}
.v2-h2{
  margin:0;
  font-family:'Inter Tight','Noto Serif SC',serif;
  font-weight:800;font-size:46px;line-height:1.2;letter-spacing:-.5px;color:#fff;
}
.v2-h2 .v2-en{display:block;background:linear-gradient(135deg,#fff 0%,#FFE800 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.v2-h2 .v2-cn{display:block;font-family:'Noto Serif SC',serif;font-weight:700;font-size:20px;letter-spacing:1px;color:rgba(255,255,255,0.7);margin-top:12px}
.v2-section-sub{font-size:16px;color:rgba(255,255,255,0.6);max-width:640px;line-height:1.85}

/* =============================================================
   DATA INSIGHTS
   ============================================================= */
.v2-data-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px}
.v2-data-card{
  position:relative;
  background:linear-gradient(180deg, rgba(0,40,160,0.32) 0%, rgba(0,20,80,0.16) 100%);
  border:1px solid rgba(2,64,200,0.3);
  border-radius:20px;padding:36px 32px;
  transition:transform .25s,border-color .25s;
}
.v2-data-card:hover{transform:translateY(-3px);border-color:rgba(255,232,0,0.45)}
.v2-data-card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
.v2-data-tag{font-size:13px;font-weight:700;color:#FFE800;letter-spacing:1px;padding:5px 12px;border:1px solid rgba(255,232,0,0.35);border-radius:6px}
.v2-data-period{font-size:13px;color:rgba(255,255,255,0.45);letter-spacing:.5px}
.v2-data-title{font-family:'Noto Serif SC',serif;font-size:22px;font-weight:700;color:#fff;margin-bottom:6px;line-height:1.3}
.v2-data-sub{font-size:13.5px;color:rgba(255,255,255,0.5);letter-spacing:.3px;margin-bottom:24px}

.v2-chart-area{height:280px;position:relative;margin:0 -10px}
.v2-line-chart{width:100%;height:100%}
.v2-chart-grid line{stroke:rgba(2,64,200,0.2);stroke-width:1;stroke-dasharray:2,4}

.v2-pie-wrap{display:flex;align-items:center;gap:24px;margin-top:8px}
.v2-pie{width:170px;height:170px;flex:none}
.v2-pie-legend{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;flex:1}
.v2-pie-legend li{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,0.75);line-height:1.5}
.v2-pie-legend li span:first-child{width:12px;height:12px;border-radius:3px;flex:none}
.v2-pie-legend li b{font-family:'JetBrains Mono',monospace;color:#FFE800;margin-left:auto;font-weight:700}

.v2-cluster-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px}
.v2-cluster-list li{display:grid;grid-template-columns:36px 1fr auto;align-items:center;gap:14px;padding:12px 14px;border-radius:10px;transition:background .2s}
.v2-cluster-list li:hover{background:rgba(2,64,200,0.15)}
.v2-cluster-rank{font-size:13px;font-weight:700;color:rgba(255,232,0,0.55)}
.v2-cluster-name{font-size:15px;font-weight:700;color:#fff}
.v2-cluster-meta{font-size:12px;color:rgba(255,255,255,0.5);letter-spacing:.3px}
.v2-cluster-foot{margin-top:20px;padding-top:16px;border-top:1px solid rgba(2,64,200,0.2);font-size:13px;color:rgba(255,255,255,0.5);line-height:1.7}
.v2-data-source{margin-top:16px;padding-top:16px;border-top:1px solid rgba(2,64,200,0.2);font-size:13px;color:rgba(255,255,255,0.5);line-height:1.7}

/* =============================================================
   PLATFORMS
   ============================================================= */
.v2-platform-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.v2-platform{
  position:relative;
  display:flex;flex-direction:column;gap:14px;
  padding:36px 30px;
  background:rgba(0,20,80,0.4);
  border:1px solid rgba(2,64,200,0.28);
  border-radius:20px;
  text-decoration:none;color:#fff;
  transition:transform .25s,border-color .25s,background .25s;
}
.v2-platform::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg, #FFE800, transparent);
  transform:scaleX(0);transform-origin:left;
  transition:transform .35s;
}
.v2-platform:hover{transform:translateY(-5px);border-color:rgba(255,232,0,0.45);background:rgba(0,40,160,0.42)}
.v2-platform:hover::after{transform:scaleX(1)}
.v2-platform-num{font-size:13px;font-weight:700;color:rgba(255,232,0,0.65);letter-spacing:1px}
.v2-platform-title{font-family:'Noto Serif SC',serif;font-weight:700;font-size:22px;line-height:1.35;margin:0}
.v2-platform-en{font-size:12px;color:rgba(255,232,0,0.7);letter-spacing:1px;margin:0 0 6px;font-weight:600}
.v2-platform-desc{font-size:14px;color:rgba(255,255,255,0.6);line-height:1.8;margin:0;flex:1}
.v2-platform-arrow{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  background:rgba(255,232,0,0.12);color:#FFE800;
  margin-top:10px;align-self:flex-start;
  transition:background .25s,transform .25s;
}
.v2-platform:hover .v2-platform-arrow{background:rgba(255,232,0,0.28);transform:translateX(4px)}

/* =============================================================
   TRENDS
   ============================================================= */
.v2-trend-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.v2-trend{
  position:relative;
  padding:36px 32px;
  background:rgba(0,20,80,0.32);
  border:1px solid rgba(2,64,200,0.28);
  border-radius:18px;
  transition:transform .25s,border-color .25s;
}
.v2-trend:hover{transform:translateY(-3px);border-color:rgba(255,232,0,0.45)}
.v2-trend-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;padding-bottom:20px;border-bottom:1px solid rgba(2,64,200,0.2)}
.v2-trend-num{font-size:24px;font-weight:800;color:rgba(255,232,0,0.8);line-height:1}
.v2-trend-tag{font-size:12px;font-weight:700;color:rgba(255,255,255,0.5);letter-spacing:1px;padding:5px 10px;border:1px solid rgba(255,255,255,0.18);border-radius:5px}
.v2-trend-title{font-family:'Noto Serif SC',serif;font-weight:700;font-size:21px;color:#fff;margin:0 0 6px;line-height:1.3}
.v2-trend-en{font-size:12px;color:rgba(255,232,0,0.7);letter-spacing:1px;margin:0 0 14px;font-weight:600}
.v2-trend p:last-child{font-size:14.5px;color:rgba(255,255,255,0.65);line-height:1.85;margin:0}

/* =============================================================
   CTA
   ============================================================= */
.v2-cta{padding:96px 0}
.v2-cta-inner{
  position:relative;
  padding:80px 60px;
  background:linear-gradient(135deg, rgba(0,40,160,0.5) 0%, rgba(0,20,80,0.3) 100%);
  border:1px solid rgba(2,64,200,0.4);
  border-radius:24px;
  overflow:hidden;
}
.v2-cta-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(2,64,200,0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(2,64,200,0.18) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at 50% 50%, black 0%, transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 50%, black 0%, transparent 70%);
  pointer-events:none;
}
.v2-cta-orb{
  position:absolute;width:400px;height:400px;border-radius:50%;
  background:radial-gradient(circle, rgba(255,232,0,0.2), transparent 70%);
  top:-100px;right:-100px;filter:blur(40px);
}
.v2-cta-content{position:relative;text-align:center;display:flex;flex-direction:column;align-items:center;gap:18px}
.v2-cta-title{
  margin:0;
  font-family:'Inter Tight','Noto Serif SC',serif;
  font-weight:800;font-size:42px;line-height:1.25;letter-spacing:-.5px;color:#fff;
}
.v2-cta-title .v2-en{display:block;background:linear-gradient(135deg,#fff 0%,#FFE800 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.v2-cta-title .v2-cn{display:block;font-family:'Noto Serif SC',serif;font-weight:700;font-size:20px;letter-spacing:1px;color:rgba(255,255,255,0.7);margin-top:10px}
.v2-cta-sub{font-size:16px;color:rgba(255,255,255,0.6);margin:0;line-height:1.85}
.v2-cta-ctas{display:flex;gap:14px;margin-top:14px;flex-wrap:wrap;justify-content:center}

/* =============================================================
   FOOTER
   ============================================================= */
.v2-footer{
  background:#00102E;
  padding:64px 0 0;
  border-top:1px solid rgba(2,64,200,0.2);
}
.v2-footer-inner{display:grid;grid-template-columns:1.4fr 2fr;gap:80px;padding-bottom:48px}
.v2-footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.v2-footer-logo .logo-mark{width:32px;height:32px}
.v2-footer-cn{font-family:'Noto Serif SC',serif;font-weight:900;font-size:20px;color:#fff;letter-spacing:1px}
.v2-footer-desc{font-size:14px;color:rgba(255,255,255,0.6);line-height:1.85;max-width:440px;margin:0 0 22px}
.v2-footer-meta{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:rgba(255,255,255,0.4);letter-spacing:.3px}

.v2-footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.v2-footer-col{display:flex;flex-direction:column;gap:12px}
.v2-footer-col h4{font-size:14px;font-weight:700;color:rgba(255,232,0,0.85);letter-spacing:1px;margin:0 0 10px}
.v2-footer-col a{font-size:14px;color:rgba(255,255,255,0.6);text-decoration:none;transition:color .2s;line-height:1.6}
.v2-footer-col a:hover{color:#FFE800}

.v2-footer-bottom{border-top:1px solid rgba(2,64,200,0.15);padding:22px 0}
.v2-footer-bottom .container{display:flex;justify-content:space-between;font-size:13px;color:rgba(255,255,255,0.45);letter-spacing:.3px}

/* =============================================================
   RESPONSIVE
   ============================================================= */
@media(max-width:1280px){
  .v2-hero-title{font-size:52px}
  .v2-hero-title .v2-cn{font-size:24px}
  .v2-h2{font-size:38px}
  .v2-cta-title{font-size:36px}
}
@media(max-width:1024px){
  .v2-hero{padding:72px 0 0;min-height:auto}
  .v2-hero-inner{grid-template-columns:1fr;gap:48px;padding-bottom:48px}
  .v2-hero-right{grid-template-columns:1fr 1fr;gap:16px}
  .v2-hero-title{font-size:48px}
  .v2-hero-title .v2-cn{font-size:22px}
  .v2-h2{font-size:32px}
  .v2-h2 .v2-cn{font-size:18px}
  .v2-cta-title{font-size:30px}
  .v2-data-grid{grid-template-columns:1fr}
  .v2-platform-grid{grid-template-columns:repeat(2,1fr)}
  .v2-trend-grid{grid-template-columns:repeat(2,1fr)}
  .v2-footer-inner{grid-template-columns:1fr;gap:48px}
  .v2-nav{display:none}
}
@media(max-width:640px){
  body.v2 .container{padding:0 20px}
  .v2-hero{padding:56px 0 0}
  .v2-hero-title{font-size:36px;letter-spacing:-.5px}
  .v2-hero-title .v2-cn{font-size:18px}
  .v2-hero-right{grid-template-columns:1fr}
  .v2-hud-num{font-size:32px}
  .v2-h2{font-size:26px}
  .v2-h2 .v2-cn{font-size:16px}
  .v2-cta-inner{padding:48px 24px}
  .v2-cta-title{font-size:24px}
  .v2-cta-title .v2-cn{font-size:16px}
  .v2-platform-grid{grid-template-columns:1fr}
  .v2-trend-grid{grid-template-columns:1fr}
  .v2-footer-cols{grid-template-columns:1fr 1fr;gap:24px}
  .v2-footer-bottom .container{flex-direction:column;gap:10px;text-align:center}
  .v2-hero-trust{flex-wrap:wrap;gap:16px}
  .v2-trust-sep{display:none}
}

/* =============================================================
   全站统一浮动联系组件 (Contact FAB)
   注入来源:assets/contact-fab.js
   ============================================================= */

.contact-fab{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:200;
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:14px;
  pointer-events:none;
  opacity:0;
  transform:translateY(20px) scale(.92);
  transition:opacity .35s ease, transform .35s ease;
}
.contact-fab.ready.visible{opacity:1;transform:translateY(0) scale(1)}

/* 主按钮(Klein 蓝 + 黄色消息图标) */
.cf-btn{
  position:relative;
  pointer-events:auto;
  width:60px;
  height:60px;
  border-radius:50%;
  background:linear-gradient(135deg,#0240C8 0%, #0028A0 60%, #01153C 100%);
  color:var(--yellow);
  border:1px solid rgba(255,232,0,0.35);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:
    0 12px 32px rgba(0,20,80,0.55),
    0 0 0 6px rgba(255,232,0,0.05),
    inset 0 1px 0 rgba(255,255,255,0.12);
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.cf-btn:hover{transform:translateY(-2px) scale(1.04);box-shadow:0 18px 40px rgba(0,20,80,0.7),0 0 0 8px rgba(255,232,0,0.08)}
.cf-btn:active{transform:scale(.96)}
.cf-btn svg{width:26px;height:26px}
.cf-icon-close{display:none}
.cf-btn.active .cf-icon-open{display:none}
.cf-btn.active .cf-icon-close{display:block}
.cf-btn.active{background:linear-gradient(135deg,#FFE800 0%,#FFC107 100%);color:var(--ink)}
.cf-btn.active:hover{box-shadow:0 18px 40px rgba(255,232,0,0.35),0 0 0 8px rgba(255,232,0,0.18)}

/* 黄色脉冲圈(吸睛) */
.cf-pulse{
  position:absolute;inset:-4px;border-radius:50%;
  border:2px solid rgba(255,232,0,0.55);
  animation:cfPulse 2.4s ease-out infinite;
  pointer-events:none;
}
.cf-btn.active .cf-pulse{display:none}
@keyframes cfPulse{
  0%{transform:scale(.95);opacity:.85}
  80%{transform:scale(1.3);opacity:0}
  100%{transform:scale(1.3);opacity:0}
}

/* 面板(展开后出现在按钮上方) */
.cf-panel{
  pointer-events:auto;
  width:340px;
  max-width:calc(100vw - 48px);
  background:linear-gradient(160deg,#0D2470 0%, #061757 45%, #030D38 100%);
  border:1px solid rgba(255,255,255,0.16);
  border-radius:16px;
  padding:18px 18px 16px;
  box-shadow:0 24px 60px rgba(0,5,26,0.6), 0 0 0 1px rgba(2,64,200,0.3);
  animation:cfPanelIn .25s ease;
}
@keyframes cfPanelIn{
  from{opacity:0;transform:translateY(12px) scale(.97)}
  to{opacity:1;transform:translateY(0) scale(1)}
}
.cf-head{margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.08)}
.cf-title{
  display:block;
  font-family:'Inter Tight','Noto Sans SC',sans-serif;
  font-size:15px;font-weight:700;color:var(--white);
  letter-spacing:.5px;
}
.cf-subtitle{
  display:block;margin-top:4px;
  font-family:'Inter Tight','JetBrains Mono',monospace;
  font-size:11px;color:var(--yellow);letter-spacing:1.2px;
  text-transform:uppercase;
}
.cf-actions{display:flex;flex-direction:column;gap:8px}
.cf-action{
  display:flex;
  align-items:center;
  gap:14px;
  padding:12px 14px;
  border-radius:11px;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.08);
  font-family:var(--font-cn);
  text-align:left;
  cursor:pointer;
  transition:background .2s, border-color .2s, transform .2s;
  color:inherit;
}
.cf-action:hover{
  background:rgba(255,232,0,0.08);
  border-color:rgba(255,232,0,0.35);
  transform:translateX(-2px);
}
.cf-action[data-act="msg"]:hover{background:rgba(255,232,0,0.18);border-color:var(--yellow)}
.cf-action[data-act="msg"]{background:rgba(255,232,0,0.08);border-color:rgba(255,232,0,0.25)}
.cf-ic{
  flex:none;width:38px;height:38px;border-radius:10px;
  background:rgba(2,64,200,0.32);border:1px solid rgba(2,64,200,0.5);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;color:var(--yellow);font-weight:600;
}
.cf-action[data-act="msg"] .cf-ic{background:rgba(255,232,0,0.18);border-color:rgba(255,232,0,0.45)}
.cf-text{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1}
.cf-text b{font-size:14px;font-weight:700;color:var(--white);line-height:1.35;word-break:break-all}
.cf-text small{font-size:12px;color:var(--text-secondary);line-height:1.5}
.cf-readonly{cursor:default}
.cf-readonly:hover{background:rgba(255,255,255,0.04);border-color:rgba(255,255,255,0.08);transform:none}

/* 多选 chip 样式(在线留言内复用) */
.cf-opt{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 13px;border-radius:999px;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.12);
  font-size:13px;color:var(--text-light);
  cursor:pointer;user-select:none;
  transition:background .18s, border-color .18s, color .18s;
}
.cf-opt input{display:none}
.cf-opt:hover{border-color:rgba(255,255,255,0.3);color:var(--white)}
.cf-opt.on{background:rgba(255,232,0,0.18);border-color:var(--yellow);color:var(--yellow);font-weight:600}

/* contact modal 微调 */
.cf-modal .modal{padding:28px}

/* 移动端调整 */
@media(max-width:640px){
  .contact-fab{right:14px;bottom:14px;gap:10px}
  .cf-btn{width:54px;height:54px}
  .cf-btn svg{width:22px;height:22px}
  .cf-panel{width:calc(100vw - 28px);padding:14px}
}