/* ============================================================
   赫界龙图 HEXDRAGON MAP — 官网设计系统
   Design tokens & components, per 高保真设计规范 V2.1
   ============================================================ */

/* ---------- Fonts ---------- */
/* 中文主字体: Noto Sans SC (思源黑体) · 英文与数字: Inter · 代码: JetBrains Mono */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---------- Design Tokens ---------- */
:root{
  /* Brand colors */
  --color-space-900:#050B18;   /* 深空黑 — 官网深色背景 */
  --color-space-800:#0A1224;   /* 区块背景 */
  --color-space-850:#080E1C;   /* 介于二者 */
  --color-card:#111827;        /* 产品卡片 */
  --color-blue-500:#2F6BFF;    /* 科技蓝 — 主交互色 */
  --color-blue-400:#4B7DFF;    /* hover */
  --color-blue-600:#1D4ED8;    /* active */
  --color-blue-soft:#7EA2FF;   /* tag 文字 */
  --color-cyan-400:#00D7C0;    /* 数据青 */
  --color-gold-500:#D9B25F;    /* 龙金色 — 品牌记忆点 */
  --color-gold-300:#F7D87C;
  --color-white:#FFFFFF;
  --color-gray-400:#9CA3AF;    /* 辅助说明 */
  --color-gray-700:#374151;    /* 分割线、边框 */

  /* Gradients */
  --grad-cosmos:linear-gradient(160deg,#050B18 0%,#0A1931 100%);
  --grad-blue:linear-gradient(135deg,#2F6BFF 0%,#00AFFF 100%);
  --grad-gold:linear-gradient(135deg,#D9B25F 0%,#F7D87C 100%);
  --grad-data:linear-gradient(135deg,#00D7C0 0%,#2F6BFF 100%);

  /* Spacing */
  --space-4:4px; --space-8:8px; --space-12:12px; --space-16:16px;
  --space-24:24px; --space-32:32px; --space-48:48px; --space-72:72px; --space-96:96px;

  /* Layout */
  --container:1280px;
  --nav-h:72px;
  --radius-card:20px;
  --radius-cap:16px;
  --radius-btn:12px;

  /* Type families */
  --font-cn:"Noto Sans SC","HarmonyOS Sans","PingFang SC","Microsoft YaHei",sans-serif;
  --font-en:"Inter","DIN Pro",var(--font-cn);
  --font-mono:"JetBrains Mono",ui-monospace,monospace;

  /* Easing */
  --ease-out:cubic-bezier(.16,.84,.44,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-cn);
  background:var(--color-space-900);
  color:var(--color-white);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
img,svg,canvas{display:block;max-width:100%}
ul{list-style:none}
::selection{background:rgba(47,107,255,.35);color:#fff}

/* English/numbers default to Inter where tagged */
.en,.num{font-family:var(--font-en);font-feature-settings:"tnum" 1}
.mono{font-family:var(--font-mono)}

/* ---------- Layout helpers ---------- */
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:80px}
.section{padding-block:var(--space-96)}
.section-tight{padding-block:var(--space-72)}

/* ---------- Typography ---------- */
.display{font-size:72px;font-weight:700;line-height:1.12;letter-spacing:-.01em}
.h1{font-size:56px;font-weight:700;line-height:1.15;letter-spacing:-.01em}
.h2{font-size:40px;font-weight:700;line-height:1.2;letter-spacing:-.005em}
.h3{font-size:28px;font-weight:600;line-height:1.25}
.lead{font-size:18px;color:var(--color-gray-400);line-height:1.7}
.body{font-size:16px;line-height:1.75}
.caption{font-size:14px;color:var(--color-gray-400);line-height:1.6}
.tiny{font-size:12px;color:var(--color-gray-400)}
.text-gold{color:var(--color-gold-500)}
.text-blue{color:var(--color-blue-soft)}
.text-cyan{color:var(--color-cyan-400)}
.text-muted{color:var(--color-gray-400)}
.grad-text-gold{background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;color:transparent}
.grad-text-blue{background:linear-gradient(120deg,#fff 0%,#7EA2FF 55%,#2F6BFF 100%);-webkit-background-clip:text;background-clip:text;color:transparent}

/* Section eyebrow / kicker */
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-en);font-size:13px;font-weight:600;letter-spacing:.18em;
  text-transform:uppercase;color:var(--color-cyan-400);
}
.kicker::before{content:"";width:24px;height:1px;background:var(--color-cyan-400);opacity:.7}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding-inline:26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform .18s var(--ease-out),background .18s var(--ease-out),
             box-shadow .18s var(--ease-out),border-color .18s var(--ease-out);
}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--color-blue-500);color:#fff;box-shadow:0 6px 22px -6px rgba(47,107,255,.6)}
.btn-primary:hover{background:var(--color-blue-400);transform:translateY(-2px);box-shadow:0 12px 30px -8px rgba(47,107,255,.75)}
.btn-primary:active{background:var(--color-blue-600);transform:translateY(0)}
.btn-secondary{border:1px solid rgba(47,107,255,.55);color:#fff;background:rgba(47,107,255,.06)}
.btn-secondary:hover{border-color:var(--color-blue-400);background:rgba(47,107,255,.14);transform:translateY(-2px)}
.btn-ghost{height:44px;border-radius:10px;color:var(--color-gray-400);padding-inline:14px}
.btn-ghost:hover{color:#fff}
.btn-gold{background:var(--grad-gold);color:#1a1205;box-shadow:0 6px 22px -8px rgba(217,178,95,.6)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 30px -8px rgba(217,178,95,.7)}
.btn-block{width:100%}

/* ---------- Tags ---------- */
.tag{display:inline-flex;align-items:center;height:28px;padding-inline:12px;border-radius:999px;
  font-size:12.5px;font-weight:500;line-height:1;letter-spacing:.01em}
.tag-blue{background:rgba(47,107,255,.12);color:var(--color-blue-soft)}
.tag-gold{background:rgba(217,178,95,.16);color:var(--color-gold-500)}
.tag-cyan{background:rgba(0,215,192,.12);color:var(--color-cyan-400)}

/* ---------- Cards ---------- */
.card{border-radius:var(--radius-card);border:1px solid rgba(255,255,255,.08);
  background:var(--color-card);transition:transform .3s var(--ease-out),
  border-color .3s var(--ease-out),box-shadow .3s var(--ease-out)}
.card-cap{background:rgba(255,255,255,.04);border-radius:var(--radius-cap)}
.card-case{background:var(--color-space-800)}
.card-hover-lift:hover{transform:translateY(-8px);border-color:rgba(47,107,255,.5);
  box-shadow:0 24px 60px -28px rgba(47,107,255,.55)}

/* ---------- Surface decorations ---------- */
.hexgrid{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='64' viewBox='0 0 56 64'%3E%3Cpath d='M28 1 55 16.5v31L28 63 1 47.5v-31z' fill='none' stroke='%231a2a4a' stroke-width='1'/%3E%3C/svg%3E");
  background-size:56px 64px;
}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--color-gray-700),transparent)}
.glow-blue{position:absolute;border-radius:50%;background:radial-gradient(circle,rgba(47,107,255,.5),transparent 70%);filter:blur(60px);pointer-events:none;z-index:0}
.glow-gold{position:absolute;border-radius:50%;background:radial-gradient(circle,rgba(217,178,95,.35),transparent 70%);filter:blur(60px);pointer-events:none;z-index:0}
.glow-cyan{position:absolute;border-radius:50%;background:radial-gradient(circle,rgba(0,215,192,.35),transparent 70%);filter:blur(60px);pointer-events:none;z-index:0}

/* Replaceable-asset hint badge */
.ph-badge{position:absolute;top:12px;left:12px;z-index:3;font-size:10.5px;letter-spacing:.04em;
  font-family:var(--font-mono);color:rgba(255,255,255,.55);background:rgba(5,11,24,.6);
  border:1px solid rgba(255,255,255,.12);border-radius:6px;padding:3px 7px;backdrop-filter:blur(4px)}

/* ============================================================
   NAVBAR
   ============================================================ */
.nav{position:fixed;inset:0 0 auto 0;height:var(--nav-h);z-index:80;
  display:flex;align-items:center;transition:background .3s var(--ease-out),
  border-color .3s var(--ease-out),backdrop-filter .3s var(--ease-out);
  border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(5,11,24,.86);backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:rgba(255,255,255,.07)}
.nav .container{display:flex;align-items:center;justify-content:space-between;gap:32px}
.nav-logo{display:flex;align-items:center;gap:12px}
.nav-logo svg{height:40px;width:auto}
.nav-logo .logo-cn{font-size:19px;font-weight:700;letter-spacing:.02em}
.nav-logo .logo-en{font-family:var(--font-en);font-size:10px;letter-spacing:.22em;
  color:var(--color-gray-400);font-weight:600;margin-top:1px}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{position:relative;padding:8px 16px;font-size:15px;color:#d4dae6;border-radius:8px;
  white-space:nowrap;transition:color .18s,background .18s}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-menu a.active{color:#fff}
.nav-menu a.active::after{content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;
  border-radius:2px;background:var(--color-blue-500)}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-burger{display:none;width:44px;height:44px;border-radius:10px;align-items:center;justify-content:center}
.nav-burger:hover{background:rgba(255,255,255,.06)}
.nav-burger span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;position:relative;transition:.25s}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:#fff;border-radius:2px;transition:.25s}
.nav-burger span::before{top:-6px}.nav-burger span::after{top:6px}

/* Mobile drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(2,6,14,.6);backdrop-filter:blur(3px);
  z-index:90;opacity:0;visibility:hidden;transition:.3s}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(82vw,340px);z-index:95;
  background:var(--color-space-800);border-left:1px solid rgba(255,255,255,.08);
  transform:translateX(100%);transition:transform .32s var(--ease-out);
  display:flex;flex-direction:column;padding:24px}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-close{width:40px;height:40px;border-radius:10px;font-size:22px;color:var(--color-gray-400)}
.drawer-close:hover{background:rgba(255,255,255,.06);color:#fff}
.drawer-menu{display:flex;flex-direction:column;gap:4px;margin-bottom:auto}
.drawer-menu a{padding:14px 16px;border-radius:12px;font-size:17px;color:#d4dae6}
.drawer-menu a:hover,.drawer-menu a.active{background:rgba(47,107,255,.12);color:#fff}
.drawer-foot{padding-top:20px;border-top:1px solid rgba(255,255,255,.08)}
.drawer-foot .row{display:flex;justify-content:space-between;font-size:14px;padding:6px 0}

/* ============================================================
   FLOATING CONTACT (右下角悬浮)
   ============================================================ */
.floatbar{position:fixed;right:22px;bottom:24px;z-index:70;display:flex;flex-direction:column;gap:10px}
.float-btn{position:relative;width:52px;height:52px;border-radius:14px;display:flex;align-items:center;
  justify-content:center;background:rgba(10,18,36,.92);border:1px solid rgba(255,255,255,.1);
  backdrop-filter:blur(10px);transition:transform .2s var(--ease-out),border-color .2s,background .2s;
  box-shadow:0 10px 30px -12px rgba(0,0,0,.7)}
.float-btn:hover{transform:translateY(-3px);border-color:rgba(47,107,255,.6);background:rgba(15,26,52,.95)}
.float-btn svg{width:22px;height:22px}
.float-btn.primary{background:var(--color-blue-500);border-color:transparent}
.float-btn.primary:hover{background:var(--color-blue-400)}
.float-pop{position:absolute;right:64px;top:50%;transform:translateY(-50%) translateX(8px);
  white-space:nowrap;background:rgba(10,18,36,.97);border:1px solid rgba(255,255,255,.1);
  border-radius:12px;padding:12px 14px;font-size:13.5px;opacity:0;visibility:hidden;
  transition:.2s;box-shadow:0 16px 40px -16px rgba(0,0,0,.8)}
.float-btn:hover .float-pop{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
.float-pop .qr{width:120px;height:120px;margin-bottom:8px}
.float-pop b{color:var(--color-gold-500);font-family:var(--font-en)}

/* ============================================================
   TOAST
   ============================================================ */
.toast{position:fixed;left:50%;top:30px;transform:translateX(-50%) translateY(-20px);z-index:200;
  display:flex;align-items:center;gap:8px;background:rgba(10,18,36,.96);
  border:1px solid rgba(34,197,94,.5);color:#fff;border-radius:12px;padding:12px 18px;
  font-size:14px;opacity:0;visibility:hidden;transition:.25s var(--ease-out);
  box-shadow:0 20px 50px -18px rgba(0,0,0,.8)}
.toast.show{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.toast svg{width:18px;height:18px;color:#22C55E}

/* ============================================================
   MODAL (二维码弹出)
   ============================================================ */
.modal-mask{position:fixed;inset:0;z-index:150;display:flex;align-items:center;justify-content:center;
  background:rgba(2,6,14,.74);backdrop-filter:blur(6px);opacity:0;visibility:hidden;transition:.28s}
.modal-mask.open{opacity:1;visibility:visible}
.modal{width:min(90vw,360px);background:var(--color-space-800);border:1px solid rgba(255,255,255,.1);
  border-radius:24px;padding:32px;text-align:center;transform:scale(.92);transition:transform .28s var(--ease-out)}
.modal-mask.open .modal{transform:scale(1)}
.modal .qr{width:200px;height:200px;margin:18px auto}
.qr-real{display:block;object-fit:contain;background:#fff;border-radius:10px}
.modal-close{position:absolute;top:18px;right:18px;width:40px;height:40px;border-radius:10px;
  font-size:22px;color:var(--color-gray-400)}
.modal-close:hover{background:rgba(255,255,255,.06);color:#fff}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{position:relative;background:var(--color-space-900);border-top:1px solid rgba(255,255,255,.07);
  padding-block:var(--space-72) var(--space-32);overflow:hidden}
.footer-starline{position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,107,255,.6),rgba(0,215,192,.6),transparent)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px}
.footer h4{font-size:14px;color:var(--color-gray-400);font-weight:600;margin-bottom:18px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:#cbd3e1;transition:color .18s}
.footer-links a:hover{color:var(--color-blue-soft)}
.footer-brand .desc{font-size:14px;color:var(--color-gray-400);max-width:300px;margin-top:16px;line-height:1.7}
.footer-contact .row{display:flex;align-items:center;gap:10px;font-size:14.5px;margin-bottom:12px}
.footer-contact .row b{font-family:var(--font-en);color:var(--color-gold-500)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.07);
  font-size:13px;color:var(--color-gray-400)}

/* ============================================================
   Scroll reveal
   ============================================================ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s var(--ease-out),transform .6s var(--ease-out)}
.reveal.in{opacity:1;transform:none}
.reveal.shown{opacity:1 !important;transform:none !important;transition:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}
.reveal[data-d="4"]{transition-delay:.32s}
.reveal[data-d="5"]{transition-delay:.40s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:980px){
  .nav-menu,.nav-right .btn{display:none}
  .nav-burger{display:flex}
}
@media(max-width:1100px){
  .container{padding-inline:40px}
  .display{font-size:56px}.h1{font-size:44px}.h2{font-size:32px}.h3{font-size:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media(max-width:760px){
  :root{--nav-h:56px}
  .container{padding-inline:20px}
  .section{padding-block:64px}.section-tight{padding-block:48px}
  .display{font-size:40px}.h1{font-size:32px}.h2{font-size:28px}.h3{font-size:22px}
  .lead{font-size:16px}
  .nav-menu,.nav-right .btn{display:none}
  .nav-burger{display:flex}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .floatbar{right:16px;bottom:16px}
  .btn{height:46px}
}