/* ============================================================
   闲逛科技 · 官网样式
   主题：深空蓝 + 青色光效（dark theme）
   ============================================================ */

:root{
  --bg:          #050a16;
  --bg-2:        #071022;
  --panel:       #0b1526;
  --panel-2:     #0e1b30;
  --line:        rgba(93,178,255,.14);
  --line-2:      rgba(93,178,255,.28);
  --text:        #e8f1ff;
  --text-2:      #a6bcd8;
  --text-3:      #6d84a3;
  --cyan:        #22d3ee;
  --cyan-2:      #06b6d4;
  --blue:        #3b82f6;
  --blue-2:      #2563eb;
  --violet:      #7c5cff;
  --ok:          #34d399;
  --warn:        #fbbf24;
  --danger:      #f87171;
  --grad:        linear-gradient(100deg,#22d3ee 0%,#3b82f6 50%,#7c5cff 100%);
  --grad-soft:   linear-gradient(135deg,rgba(34,211,238,.14),rgba(59,130,246,.06));
  --radius:      16px;
  --radius-sm:   11px;
  --shadow:      0 20px 50px -20px rgba(0,0,0,.85);
  --glow-cyan:   0 0 40px -8px rgba(34,211,238,.55);
  --glow-blue:   0 0 46px -10px rgba(59,130,246,.6);
  --font: "HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono: "JetBrains Mono","Cascadia Code",Consolas,"Courier New",monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.lock{overflow:hidden}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
img{max-width:100%;display:block}
::selection{background:rgba(34,211,238,.35)}

.container{width:min(1240px,92vw);margin:0 auto}

/* 滚动条 */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#050a16}
::-webkit-scrollbar-thumb{background:#1e3350;border-radius:6px;border:2px solid #050a16}
::-webkit-scrollbar-thumb:hover{background:#2a4a70}

/* ==================== 按钮 ==================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:10px;border:1px solid transparent;
  font-size:14.5px;font-weight:600;cursor:pointer;
  transition:transform .18s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s;
  white-space:nowrap;position:relative;overflow:hidden;
}
.btn:active{transform:translateY(1px) scale(.985)}
.btn-primary{
  background:var(--grad);color:#03101f;
  box-shadow:0 8px 26px -10px rgba(34,211,238,.75);
}
.btn-primary:hover{box-shadow:0 12px 34px -8px rgba(34,211,238,.95);transform:translateY(-2px)}
.btn-outline{
  background:rgba(148,190,255,.05);border-color:var(--line-2);color:var(--text);
}
.btn-outline:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(34,211,238,.08)}
.btn-ghost{
  background:transparent;border-color:transparent;color:var(--text-2);font-weight:500;
}
.btn-ghost:hover{color:var(--cyan)}
.btn-lg{padding:14px 30px;font-size:15.5px;border-radius:12px}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;pointer-events:none}

/* ==================== 导航 ==================== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .3s,border-color .3s,backdrop-filter .3s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(5,10,22,.82);
  backdrop-filter:blur(18px) saturate(150%);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;color:var(--cyan);flex-shrink:0;
  filter:drop-shadow(0 0 12px rgba(34,211,238,.7));
}
.logo-mark svg{width:100%;height:100%}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text b{font-size:17px;letter-spacing:.5px}
.logo-text i{
  font-style:normal;font-size:9.5px;letter-spacing:2.2px;color:var(--text-3);
  font-family:var(--mono);margin-top:2px;
}
.nav-links{display:flex;gap:4px;align-items:center}
.nav-links a{
  font-size:14.5px;color:var(--text-2);padding:8px 14px;border-radius:8px;
  transition:color .2s,background .2s;position:relative;
}
.nav-links a:hover{color:var(--text);background:rgba(148,190,255,.07)}
.nav-links a.active{color:var(--cyan);background:rgba(34,211,238,.09)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;
}
.nav-toggle span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:.28s}
.nav-toggle.on span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.on span:nth-child(2){opacity:0}
.nav-toggle.on span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ==================== 首屏 ==================== */
.hero{position:relative;padding:150px 0 0;overflow:hidden;min-height:100vh;display:flex;flex-direction:column;justify-content:center}
.hero-bg{position:absolute;inset:0;z-index:0;overflow:hidden}
#gridCanvas{position:absolute;inset:0;width:100%;height:100%;opacity:.5}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;animation:float 16s ease-in-out infinite}
.orb-1{width:520px;height:520px;background:radial-gradient(circle,#0891b2,transparent 70%);top:-160px;left:-120px}
.orb-2{width:460px;height:460px;background:radial-gradient(circle,#2563eb,transparent 70%);top:8%;right:-140px;animation-delay:-5s}
.orb-3{width:400px;height:400px;background:radial-gradient(circle,#7c5cff,transparent 70%);bottom:-160px;left:38%;animation-delay:-10s;opacity:.35}
@keyframes float{
  0%,100%{transform:translate(0,0) scale(1)}
  33%{transform:translate(40px,-30px) scale(1.08)}
  66%{transform:translate(-30px,26px) scale(.94)}
}
.hero::after{
  content:'';position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,transparent 55%,var(--bg) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;
  padding-bottom:70px;
}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:100px;font-size:13px;font-weight:500;
  background:rgba(34,211,238,.09);border:1px solid rgba(34,211,238,.3);color:#8ce9f7;
  margin-bottom:26px;
}
.badge .dot{
  width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 0 rgba(34,211,238,.8);animation:pulse 2.2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(34,211,238,.7)}
  70%{box-shadow:0 0 0 9px rgba(34,211,238,0)}
  100%{box-shadow:0 0 0 0 rgba(34,211,238,0)}
}
.hero h1{
  font-size:clamp(38px,5.2vw,68px);line-height:1.12;font-weight:800;
  letter-spacing:-1.5px;margin-bottom:24px;
}
.grad{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  filter:drop-shadow(0 0 26px rgba(34,211,238,.35));
}
.hero-desc{font-size:17px;color:var(--text-2);max-width:540px;margin-bottom:36px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:48px}
.hero-stats{display:flex;gap:0;flex-wrap:wrap}
.hero-stats .hs{
  padding:0 30px;border-left:1px solid var(--line);flex:1;min-width:110px;
}
.hero-stats .hs:first-child{padding-left:0;border-left:none}
.hero-stats b{
  display:block;font-size:31px;font-weight:800;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-stats span{font-size:13px;color:var(--text-3)}

/* 代码窗口 */
.hero-visual{position:relative}
.code-window{
  position:relative;border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(160deg,#0b1729,#081120);
  border:1px solid var(--line-2);
  box-shadow:var(--shadow),0 0 70px -24px rgba(34,211,238,.55);
  animation:riseIn .9s .15s both cubic-bezier(.2,.8,.3,1);
}
@keyframes riseIn{from{opacity:0;transform:translateY(28px) scale(.97)}to{opacity:1;transform:none}}
.code-bar{
  display:flex;align-items:center;gap:7px;padding:13px 16px;
  background:rgba(148,190,255,.045);border-bottom:1px solid var(--line);
}
.cd{width:11px;height:11px;border-radius:50%}
.cd-r{background:#ff5f57}.cd-y{background:#febc2e}.cd-g{background:#28c840}
.code-bar em{
  font-style:normal;font-family:var(--mono);font-size:12px;color:var(--text-3);margin-left:8px;
}
.code-body{
  padding:20px 22px;font-family:var(--mono);font-size:13px;line-height:2;
  color:#b9d4f0;overflow-x:auto;position:relative;z-index:1;
}
.code-body .ln{
  display:inline-block;width:24px;color:#2f4a6b;user-select:none;margin-right:14px;text-align:right;
}
.c-kw{color:#c084fc}.c-str{color:#5eead4}.c-fn{color:#60a5fa}.c-cm{color:#476b8e}.c-bool{color:#fbbf24}
.code-glow{
  position:absolute;bottom:-60px;left:50%;transform:translateX(-50%);
  width:70%;height:120px;background:radial-gradient(ellipse,rgba(34,211,238,.4),transparent 70%);
  filter:blur(30px);
}

/* 浮动卡片 */
.float-card{
  position:absolute;display:flex;align-items:center;gap:11px;
  padding:13px 17px;border-radius:13px;
  background:rgba(11,21,38,.9);backdrop-filter:blur(14px);
  border:1px solid var(--line-2);box-shadow:var(--shadow);
  animation:floatY 5s ease-in-out infinite;
}
.float-card b{display:block;font-size:13.5px}
.float-card i{font-style:normal;font-size:11.5px;color:var(--text-3)}
.fc-icon{
  width:34px;height:34px;border-radius:9px;flex-shrink:0;
  display:grid;place-items:center;color:var(--cyan);
  background:rgba(34,211,238,.12);
}
.fc-icon svg{width:19px;height:19px}
.fc-1{top:-34px;left:-72px;animation-delay:-1s}
.fc-2{bottom:-26px;right:-30px;animation-delay:-3s}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-11px)}}

/* 滚动条带 */
.marquee{
  position:relative;z-index:2;margin-top:auto;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  overflow:hidden;padding:19px 0;
  background:rgba(7,16,34,.6);
  mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
}
.marquee-track{display:flex;gap:56px;width:max-content;animation:scrollX 32s linear infinite}
.marquee-track span{
  font-size:14px;color:var(--text-3);letter-spacing:.8px;
  display:flex;align-items:center;gap:10px;white-space:nowrap;
}
.marquee-track span::before{
  content:'';width:5px;height:5px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 9px var(--cyan);
}
@keyframes scrollX{to{transform:translateX(-50%)}}

/* ==================== 通用区块 ==================== */
.section{padding:110px 0;position:relative}
.section-alt{background:var(--bg-2)}
.sec-head{text-align:center;max-width:660px;margin:0 auto 60px}
.sec-tag{
  display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:3px;
  color:var(--cyan);margin-bottom:14px;
}
.sec-head h2{font-size:clamp(28px,3.4vw,42px);font-weight:800;letter-spacing:-.8px;margin-bottom:14px}
.sec-head p{color:var(--text-2);font-size:16px}

/* ==================== 业务卡片 ==================== */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc-card{
  position:relative;padding:30px 26px;border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(14,27,48,.9),rgba(9,17,32,.9));
  border:1px solid var(--line);overflow:hidden;
  transition:transform .35s cubic-bezier(.2,.8,.3,1),border-color .35s,box-shadow .35s;
}
.svc-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--grad);opacity:0;transition:opacity .35s;
}
.svc-card:hover{transform:translateY(-7px);border-color:var(--line-2);box-shadow:0 26px 50px -26px rgba(0,0,0,.9)}
.svc-card:hover::before{opacity:1}
.svc-num{
  position:absolute;top:20px;right:24px;font-family:var(--mono);font-size:40px;font-weight:800;
  color:rgba(93,178,255,.07);line-height:1;
}
.svc-icon{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid var(--line-2);color:var(--cyan);
  margin-bottom:20px;transition:transform .35s,box-shadow .35s;
}
.svc-card:hover .svc-icon{transform:scale(1.08) rotate(-4deg);box-shadow:var(--glow-cyan)}
.svc-icon svg{width:25px;height:25px}
.svc-card h3{font-size:19.5px;font-weight:700;margin-bottom:11px}
.svc-card p{font-size:14.5px;color:var(--text-2);margin-bottom:18px;min-height:48px}
.svc-feats{display:flex;flex-direction:column;gap:9px;padding-top:16px;border-top:1px solid var(--line)}
.svc-feats li{
  list-style:none;font-size:13.5px;color:var(--text-2);display:flex;align-items:center;gap:9px;
}
.svc-feats li::before{
  content:'';width:14px;height:14px;flex-shrink:0;border-radius:4px;
  background:rgba(34,211,238,.14);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2322d3ee' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 13 4 4L19 7'/%3E%3C/svg%3E");
  background-size:10px;background-position:center;background-repeat:no-repeat;
}

/* ==================== 解决方案 Tabs ==================== */
.sol-tabs{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:38px}
.sol-tab{
  padding:10px 22px;border-radius:100px;font-size:14.5px;font-weight:600;cursor:pointer;
  background:rgba(148,190,255,.045);border:1px solid var(--line);color:var(--text-2);
  transition:.25s;
}
.sol-tab:hover{color:var(--text);border-color:var(--line-2)}
.sol-tab.on{
  background:var(--grad);color:#03101f;border-color:transparent;
  box-shadow:0 8px 24px -10px rgba(34,211,238,.8);
}
.sol-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  padding:44px;border-radius:20px;
  background:linear-gradient(150deg,rgba(14,27,48,.85),rgba(8,16,30,.85));
  border:1px solid var(--line);
  animation:fadeUp .5s both;
}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.sol-panel h3{font-size:26px;font-weight:800;margin-bottom:14px}
.sol-panel > div > p{color:var(--text-2);font-size:15px;margin-bottom:24px}
.sol-points{display:flex;flex-direction:column;gap:13px}
.sol-points li{
  list-style:none;display:flex;gap:12px;font-size:14.5px;color:var(--text-2);align-items:flex-start;
}
.sol-points li b{color:var(--text);font-weight:600}
.sol-points li::before{
  content:'';width:18px;height:18px;flex-shrink:0;margin-top:3px;border-radius:50%;
  background:rgba(34,211,238,.13);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2322d3ee' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 13 4 4L19 7'/%3E%3C/svg%3E");
  background-size:11px;background-position:center;background-repeat:no-repeat;
}
.sol-visual{
  border-radius:16px;padding:26px;border:1px solid var(--line-2);
  background:linear-gradient(160deg,rgba(34,211,238,.06),rgba(59,130,246,.03));
  min-height:290px;display:flex;flex-direction:column;justify-content:center;gap:14px;
}
.sol-node{
  display:flex;align-items:center;gap:13px;padding:14px 17px;border-radius:12px;
  background:rgba(11,21,38,.85);border:1px solid var(--line);
  font-size:14px;transition:.3s;
}
.sol-visual:hover .sol-node{border-color:var(--line-2)}
.sol-node i{
  width:30px;height:30px;border-radius:8px;flex-shrink:0;display:grid;place-items:center;
  font-style:normal;font-family:var(--mono);font-size:12px;font-weight:700;
  background:var(--grad);color:#03101f;
}
.sol-node span{color:var(--text-2)}
.sol-arrow{text-align:center;color:var(--cyan);font-size:15px;opacity:.65;line-height:.6}

/* ==================== 案例 ==================== */
.case-filters{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:36px}
.case-filter{
  padding:8px 18px;border-radius:100px;font-size:13.5px;cursor:pointer;
  background:transparent;border:1px solid var(--line);color:var(--text-3);transition:.25s;
}
.case-filter:hover{color:var(--text-2);border-color:var(--line-2)}
.case-filter.on{background:rgba(34,211,238,.12);border-color:var(--cyan);color:var(--cyan)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{
  position:relative;border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(165deg,rgba(14,27,48,.9),rgba(9,17,32,.92));
  border:1px solid var(--line);transition:transform .35s cubic-bezier(.2,.8,.3,1),border-color .35s,box-shadow .35s;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-6px);border-color:var(--line-2);box-shadow:0 26px 50px -26px rgba(0,0,0,.9)}
.case-top{
  padding:22px 24px 20px;position:relative;
  background:linear-gradient(140deg,rgba(34,211,238,.11),rgba(124,92,255,.06));
  border-bottom:1px solid var(--line);
}
.case-cat{
  display:inline-block;font-size:11.5px;font-family:var(--mono);letter-spacing:1.2px;
  padding:4px 10px;border-radius:6px;margin-bottom:13px;
  background:rgba(34,211,238,.13);color:#8ce9f7;border:1px solid rgba(34,211,238,.25);
}
.case-top h3{font-size:17.5px;font-weight:700;line-height:1.4}
.case-body{padding:20px 24px 24px;flex:1;display:flex;flex-direction:column}
.case-body p{font-size:14px;color:var(--text-2);flex:1;margin-bottom:18px}
.case-metric{
  display:flex;align-items:center;gap:9px;padding:11px 15px;border-radius:10px;
  background:rgba(52,211,153,.09);border:1px solid rgba(52,211,153,.25);
  font-size:14px;font-weight:700;color:#6ee7b7;margin-bottom:16px;
}
.case-metric svg{width:16px;height:16px;flex-shrink:0}
.case-tags{display:flex;flex-wrap:wrap;gap:7px}
.case-tags span{
  font-size:12px;padding:4px 11px;border-radius:6px;
  background:rgba(148,190,255,.07);border:1px solid var(--line);color:var(--text-3);
  font-family:var(--mono);
}

/* ==================== 流程 ==================== */
.process-line{
  display:grid;grid-template-columns:repeat(6,1fr);gap:0;position:relative;
}
.process-line::before{
  content:'';position:absolute;top:29px;left:8%;right:8%;height:1px;
  background:linear-gradient(90deg,transparent,var(--line-2) 15%,var(--line-2) 85%,transparent);
}
.p-step{position:relative;text-align:center;padding:0 10px}
.p-dot{
  width:58px;height:58px;margin:0 auto 18px;border-radius:50%;
  display:grid;place-items:center;position:relative;z-index:1;
  background:var(--panel);border:1px solid var(--line-2);
  font-family:var(--mono);font-size:15px;font-weight:700;color:var(--cyan);
  transition:.35s;
}
.p-step:hover .p-dot{
  background:var(--grad);color:#03101f;border-color:transparent;
  box-shadow:var(--glow-cyan);transform:scale(1.09);
}
.p-step h4{font-size:15.5px;font-weight:700;margin-bottom:7px}
.p-step p{font-size:12.8px;color:var(--text-3);line-height:1.55}

/* ==================== 优势 ==================== */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.why-card{
  padding:28px 24px;border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(14,27,48,.8),rgba(9,17,32,.85));
  border:1px solid var(--line);transition:transform .35s,border-color .35s;
}
.why-card:hover{transform:translateY(-6px);border-color:var(--line-2)}
.why-ico{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid var(--line-2);color:var(--cyan);margin-bottom:17px;
}
.why-ico svg{width:22px;height:22px}
.why-card h4{font-size:16.5px;font-weight:700;margin-bottom:9px}
.why-card p{font-size:13.8px;color:var(--text-2);line-height:1.7}

/* ==================== 联系 ==================== */
.contact-wrap{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:start}
.contact-info h2{font-size:clamp(26px,3.2vw,38px);font-weight:800;letter-spacing:-.6px;margin-bottom:14px}
.contact-lead{color:var(--text-2);font-size:15.5px;margin-bottom:34px}
.contact-list{display:flex;flex-direction:column;gap:16px;margin-bottom:28px}
.contact-list li{
  list-style:none;display:flex;gap:14px;align-items:center;
}
.cl-ico{
  width:42px;height:42px;border-radius:11px;flex-shrink:0;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid var(--line-2);color:var(--cyan);
}
.cl-ico svg{width:19px;height:19px}
.contact-list b{display:block;font-size:12px;color:var(--text-3);font-weight:500}
.contact-list em{font-style:normal;font-size:15px;font-weight:600}
.contact-note{
  display:flex;gap:11px;align-items:flex-start;padding:15px 17px;border-radius:12px;
  background:rgba(52,211,153,.07);border:1px solid rgba(52,211,153,.2);
  font-size:13.2px;color:#8fd8bd;
}
.contact-note svg{width:18px;height:18px;flex-shrink:0;margin-top:2px}

.contact-form{
  padding:34px;border-radius:20px;
  background:linear-gradient(160deg,rgba(14,27,48,.92),rgba(9,17,32,.94));
  border:1px solid var(--line-2);box-shadow:var(--shadow);
}
.cf-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:block;margin-bottom:18px}
.field > span{display:block;font-size:13.2px;color:var(--text-2);margin-bottom:8px;font-weight:500}
.field span i{color:var(--danger);font-style:normal}
.field input,.field select,.field textarea{
  width:100%;padding:12px 15px;border-radius:10px;
  background:rgba(5,10,22,.7);border:1px solid var(--line);
  font-size:14.5px;color:var(--text);transition:.25s;outline:none;
}
.field input::placeholder,.field textarea::placeholder{color:#4a5f7d}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--cyan);background:rgba(34,211,238,.05);
  box-shadow:0 0 0 3px rgba(34,211,238,.12);
}
.field textarea{resize:vertical;min-height:96px;line-height:1.6}
.field select{cursor:pointer;appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236d84a3' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:16px;padding-right:40px;
}
.field select option{background:#0b1526;color:var(--text)}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{
  padding:8px 16px;border-radius:100px;font-size:13.2px;cursor:pointer;
  background:rgba(148,190,255,.05);border:1px solid var(--line);color:var(--text-2);transition:.25s;
  user-select:none;
}
.chip:hover{border-color:var(--line-2);color:var(--text)}
.chip.on{background:rgba(34,211,238,.14);border-color:var(--cyan);color:var(--cyan);font-weight:600}
.form-hint{text-align:center;font-size:13px;color:var(--text-3);margin-top:14px}
.form-hint.err{color:var(--danger)}
.form-hint.ok{color:var(--ok)}

/* ==================== 页脚 ==================== */
.footer{border-top:1px solid var(--line);background:#04080f;padding-top:64px}
.footer-inner{display:grid;grid-template-columns:1.3fr 2fr;gap:56px;padding-bottom:44px}
.footer-brand p{font-size:13.8px;color:var(--text-3);margin-top:18px;line-height:1.8}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.footer-cols h4{font-size:14.5px;font-weight:700;margin-bottom:16px}
.footer-cols a,.footer-cols span{
  display:block;font-size:13.5px;color:var(--text-3);margin-bottom:11px;transition:color .22s;
}
.footer-cols a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid var(--line);
  font-size:12.8px;color:#4d6180;
}
.footer-bottom span{white-space:nowrap}

/* ==================== 回到顶部 / Toast ==================== */
.to-top{
  position:fixed;right:26px;bottom:26px;width:46px;height:46px;border-radius:13px;
  display:grid;place-items:center;z-index:90;
  background:var(--panel-2);border:1px solid var(--line-2);color:var(--cyan);
  opacity:0;pointer-events:none;transition:.3s;
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{background:rgba(34,211,238,.14);transform:translateY(-3px)}
.to-top svg{width:20px;height:20px}

.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,24px);
  padding:13px 24px;border-radius:12px;font-size:14.5px;font-weight:500;
  background:rgba(11,21,38,.96);border:1px solid var(--line-2);
  box-shadow:var(--shadow);z-index:200;opacity:0;pointer-events:none;transition:.35s;
  backdrop-filter:blur(12px);max-width:88vw;text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.ok{border-color:rgba(52,211,153,.5);color:#6ee7b7}
.toast.err{border-color:rgba(248,113,113,.5);color:#fca5a5}

/* 骨架/空态 */
.skeleton{
  height:200px;border-radius:var(--radius);
  background:linear-gradient(100deg,rgba(14,27,48,.7) 30%,rgba(24,44,74,.8) 50%,rgba(14,27,48,.7) 70%);
  background-size:220% 100%;animation:shim 1.4s infinite;
}
@keyframes shim{to{background-position:-120% 0}}
.empty{
  grid-column:1/-1;text-align:center;padding:56px 20px;color:var(--text-3);font-size:14.5px;
  border:1px dashed var(--line-2);border-radius:var(--radius);
}

/* 滚动入场 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.8,.3,1),transform .7s cubic-bezier(.2,.8,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ==================== 响应式 ==================== */
@media(max-width:1080px){
  .hero-inner{grid-template-columns:1fr;gap:56px}
  .hero-visual{max-width:560px;margin:0 auto;width:100%}
  .service-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .process-line{grid-template-columns:repeat(3,1fr);gap:34px 0}
  .process-line::before{display:none}
  .contact-wrap{grid-template-columns:1fr;gap:44px}
  .footer-inner{grid-template-columns:1fr;gap:40px}
}
@media(max-width:820px){
  .nav-links{
    position:fixed;top:72px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(6,12,24,.98);backdrop-filter:blur(20px);
    padding:14px 5vw 24px;border-bottom:1px solid var(--line);
    transform:translateY(-120%);transition:transform .35s cubic-bezier(.2,.8,.3,1);
    align-items:stretch;max-height:calc(100vh - 72px);overflow-y:auto;
  }
  .nav-links.open{transform:translateY(0)}
  .nav-links a{padding:14px 6px;font-size:15.5px;border-bottom:1px solid var(--line)}
  .nav-toggle{display:flex}
  #navAdmin{display:none}
  .section{padding:80px 0}
  .sol-panel{grid-template-columns:1fr;gap:30px;padding:30px}
  .hero{padding-top:120px;min-height:auto}
  .fc-1{left:-10px;top:-16px}
  .fc-2{right:-8px;bottom:-18px}
}
@media(max-width:620px){
  .service-grid,.case-grid,.why-grid{grid-template-columns:1fr}
  .process-line{grid-template-columns:repeat(2,1fr)}
  .cf-row{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:1fr 1fr}
  .contact-form{padding:24px 20px}
  .hero-stats .hs{padding:0 16px;min-width:88px}
  .hero-stats b{font-size:25px}
  .float-card{padding:10px 13px}
  .float-card b{font-size:12.5px}
  .code-body{font-size:11.5px;padding:16px}
  .marquee-track{gap:36px}
}