/* ============ Anahtech 设计系统 ============ */
:root{
  --bg:#eef4fb;
  --bg-2:#e4edf8;
  --panel:rgba(255,255,255,.62);
  --panel-strong:rgba(255,255,255,.84);
  --line:rgba(47,100,180,.14);
  --line-strong:rgba(47,100,180,.28);
  --txt:#14233d;
  --txt-2:#4a5d7a;
  --txt-3:#7a8ba6;
  --blue:#2f7bff;
  --cyan:#0891b2;
  --violet:#7c3aed;
  --brand:#f58917;
  --brand-2:#e67a0d;
  --grad:linear-gradient(120deg,#2f7bff 0%,#0ea5e9 52%,#6366f1 100%);
  --glass:rgba(255,255,255,.72);
  --glass-strong:rgba(255,255,255,.9);
  --shadow:0 18px 48px -28px rgba(47,100,180,.35);
  --radius:16px;
  --radius-sm:10px;
  --max:1200px;
  --font:"Inter","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--txt);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
h1,h2,h3,h4{line-height:1.25;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,5vw,3.6rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.5rem)}
h3{font-size:1.15rem}

/* ---- 背景氛围 ---- */
.bg-layer{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    /* 右侧压淡，保证右上产品文案/图标清晰可读 */
    linear-gradient(90deg,rgba(238,244,251,0) 38%,rgba(238,244,251,.55) 62%,rgba(238,244,251,.88) 100%),
    linear-gradient(180deg,rgba(238,244,251,.42) 0%,rgba(255,255,255,.18) 42%,rgba(220,232,248,.52) 100%),
    url("../img/home-bg-tech-v2.jpg?v=20261026tone") center / cover no-repeat,
    var(--bg);
}
.bg-grid{position:fixed;inset:0;z-index:-2;pointer-events:none;opacity:.18;
  background-image:linear-gradient(rgba(47,100,180,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(47,100,180,.07) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);}
#stars{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.12}

/* ---- 布局 ---- */
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}
.section-sm{padding:64px 0}
.center{text-align:center}

/* ---- 顶部导航 ---- */
.header{position:fixed;top:0;left:0;right:0;z-index:2000;overflow:visible;
  background:rgba(255,255,255,.82);backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header.scrolled{background:rgba(255,255,255,.82);border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.12rem;letter-spacing:.02em}
.logo-img{
  height:58px;width:auto;flex:none;display:block;
  background:transparent;border-radius:0;padding:0;
}
/* 首页：顶栏与四宫格同宽，左侧与 logo 对齐 */
body.page-shell .header .wrap,
body.page-shell .footer.footer-slim .wrap{
  max-width:1480px;
}
.footer .logo-img{height:62px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:9px 16px;border-radius:999px;font-size:.94rem;color:var(--txt-2);transition:.22s}
.nav-links a:hover{color:var(--txt);background:var(--panel)}
.nav-links a.active{color:var(--txt);background:var(--panel-strong);box-shadow:inset 0 0 0 1px var(--line-strong)}
.nav-dd{position:relative;display:flex;align-items:center}
.nav-dd-trigger{
  display:inline-flex;align-items:center;gap:6px;cursor:pointer;
  padding:9px 16px;border-radius:999px;font-size:.94rem;color:var(--txt-2);
  background:transparent;border:0;font:inherit;transition:.22s;
}
.nav-dd-trigger:hover{color:var(--txt);background:var(--panel)}
.nav-dd-trigger.active{color:var(--txt);background:var(--panel-strong);box-shadow:inset 0 0 0 1px var(--line-strong)}
.nav-dd-trigger::after{
  content:"";width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;
  border-top:5px solid currentColor;opacity:.7;margin-top:1px;
}
.nav-dd-menu{
  display:none;position:absolute;top:100%;left:0;min-width:200px;
  padding:10px 0 0; /* 桥接悬停空隙，避免移入时菜单消失 */
  z-index:1000;
  background:transparent;border:0;box-shadow:none;
}
.nav-dd-menu-panel{
  padding:8px;border-radius:12px;
  background:var(--glass-strong);border:1px solid var(--line);
  box-shadow:var(--shadow);backdrop-filter:blur(14px);
}
.nav-dd:hover .nav-dd-menu,
.nav-dd:focus-within .nav-dd-menu,
.nav-dd.open .nav-dd-menu{display:block}
.nav-dd-menu a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:.92rem;
  color:var(--txt-2);text-decoration:none;white-space:nowrap;
}
.nav-dd-menu a:hover{color:var(--txt);background:var(--panel)}
.nav-dd-menu a.active{color:var(--txt);background:var(--panel-strong)}
.nav-dd-ico{
  width:28px;height:28px;border-radius:7px;flex:none;display:block;
  object-fit:contain;background:#fff;border:1px solid rgba(47,100,180,.18);
}
.nav-dd-ico--sign{
  background:rgba(109,40,217,.12);
  border:1px solid rgba(109,40,217,.28);
}
.header{overflow:visible}
.nav-cta{display:flex;align-items:center;gap:12px}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:var(--panel);color:var(--txt);cursor:pointer;place-items:center}
.burger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;transition:.25s}
.burger span::before{top:-6px}.burger span::after{top:6px}
.burger.open span{background:transparent}
.burger.open span::before{transform:translateY(6px) rotate(45deg)}
.burger.open span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---- 按钮 ---- */
.btn{display:inline-flex;align-items:center;gap:9px;padding:12px 24px;border-radius:999px;
  font-size:.94rem;font-weight:600;cursor:pointer;border:1px solid transparent;transition:.25s;white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 28px rgba(47,123,255,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(47,123,255,.4)}
.btn-ghost{background:var(--panel);color:var(--txt);border-color:var(--line-strong)}
.btn-ghost:hover{background:var(--panel-strong);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:.88rem}
.btn-lg{padding:15px 32px;font-size:1rem}
.arrow{transition:transform .25s}
.btn:hover .arrow{transform:translateX(4px)}

/* ---- 标签/标题 ---- */
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:999px;
  background:var(--panel);border:1px solid var(--line);font-size:.78rem;color:var(--txt-2);
  letter-spacing:.08em;text-transform:uppercase;margin-bottom:20px}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);font-style:normal}
.eyebrow.brand{border-color:rgba(245,137,23,.42);background:rgba(245,137,23,.1);color:var(--brand-2)}
.eyebrow.brand i{background:var(--brand);box-shadow:0 0 10px var(--brand)}
.sec-head{max-width:760px;margin-bottom:52px}
.sec-head.center{margin-left:auto;margin-right:auto}
.sec-head p{color:var(--txt-2);font-size:1.03rem;margin-top:16px}
.grad-txt{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---- 卡片 ---- */
.card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;transition:.3s;overflow:hidden;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;opacity:0;transition:.35s;
  background:radial-gradient(420px 260px at var(--mx,50%) var(--my,0%),rgba(47,123,255,.12),transparent 65%)}
.card:hover{transform:translateY(-6px);border-color:var(--line-strong);
  box-shadow:0 26px 60px -24px rgba(47,123,255,.32)}
.card:hover::before{opacity:1}
.card > *{position:relative}
.card h3{margin-bottom:12px}
.card p{color:var(--txt-2);font-size:.95rem}
.icon-box{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:20px;
  background:linear-gradient(140deg,rgba(245,137,23,.24),rgba(139,92,246,.14));
  border:1px solid rgba(245,137,23,.34);color:var(--brand-2)}
.icon-box svg{width:26px;height:26px;stroke:currentColor;fill:none;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round}

.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

/* ---- Hero ---- */
.hero{padding:172px 0 96px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{margin-bottom:24px}
.hero-lead{font-size:1.1rem;color:var(--txt-2);max-width:560px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}
.hero-meta{display:flex;gap:28px;flex-wrap:wrap;padding-top:28px;border-top:1px solid var(--line)}
.hero-meta div strong{display:block;font-size:1.55rem;font-weight:800}
.hero-meta div span{font-size:.82rem;color:var(--txt-3)}

/* ---- 控制台视觉 ---- */
.mock{position:relative;border-radius:20px;border:1px solid var(--line-strong);
  background:linear-gradient(160deg,rgba(255,255,255,.92),rgba(236,244,255,.88));
  box-shadow:0 40px 90px -30px rgba(47,123,255,.28);overflow:hidden}
.mock::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(500px 300px at 80% -10%,rgba(99,102,241,.12),transparent 70%)}
.mock-bar{display:flex;align-items:center;gap:8px;padding:14px 18px;border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.55)}
.dot{width:10px;height:10px;border-radius:50%;background:#c5d0e2}
.dot.r{background:#ff5f57}.dot.y{background:#febc2e}.dot.g{background:#28c840}
.mock-title{margin-left:10px;font-size:.78rem;color:var(--txt-3);letter-spacing:.06em}
.mock-body{display:grid;grid-template-columns:64px 1fr;min-height:352px;position:relative;z-index:1}
.mock-side{border-right:1px solid var(--line);padding:16px 0;display:flex;flex-direction:column;
  align-items:center;gap:16px}
.mock-side i{width:34px;height:34px;border-radius:10px;background:var(--panel);border:1px solid var(--line);
  display:grid;place-items:center;font-style:normal;font-size:.85rem;color:var(--txt-3)}
.mock-side i.on{background:linear-gradient(140deg,rgba(47,123,255,.28),rgba(14,165,233,.18));
  color:var(--blue);border-color:var(--line-strong)}
.mock-main{padding:20px;display:flex;flex-direction:column;gap:14px}
.mock-row{display:flex;align-items:center;gap:12px}
.avatar{width:34px;height:34px;border-radius:10px;flex:none;
  background:linear-gradient(140deg,rgba(47,123,255,.8),rgba(139,92,246,.8))}
.avatar.c2{background:linear-gradient(140deg,rgba(34,211,238,.8),rgba(47,123,255,.8))}
.avatar.c3{background:linear-gradient(140deg,rgba(139,92,246,.8),rgba(236,72,153,.7))}
.bubble{flex:1;height:34px;border-radius:10px;background:var(--panel);border:1px solid var(--line)}
.bubble.w70{flex:0 0 62%}.bubble.w45{flex:0 0 42%}
.bar{height:8px;border-radius:6px;background:linear-gradient(90deg,rgba(47,123,255,.55),rgba(34,211,238,.25))}
.bar.w80{width:80%}.bar.w55{width:55%}.bar.w35{width:35%}
.mock-panel{border:1px solid var(--line);border-radius:12px;padding:16px;background:rgba(255,255,255,.55)}
.mock-panel h4{font-size:.8rem;color:var(--txt-3);font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.mock-stats{display:flex;gap:22px}
.mock-stats b{font-size:1.3rem;font-weight:800;display:block}
.mock-stats span{font-size:.72rem;color:var(--txt-3)}
.encrypt{margin-left:auto;font-size:.72rem;color:var(--cyan);border:1px solid rgba(8,145,178,.3);
  padding:3px 10px;border-radius:999px;background:rgba(8,145,178,.08)}
.float-tag{position:absolute;z-index:3;padding:10px 16px;border-radius:12px;font-size:.8rem;font-weight:600;
  background:rgba(255,255,255,.92);border:1px solid var(--line-strong);backdrop-filter:blur(10px);
  box-shadow:var(--shadow);animation:float 5s ease-in-out infinite}
.float-tag.t1{top:-16px;right:26px;color:var(--cyan)}
.float-tag.t2{bottom:-18px;left:18px;color:var(--violet);animation-delay:1.6s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* ---- 跑马灯 ---- */
.marquee{overflow:hidden;position:relative;
  mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee-track{display:flex;gap:60px;width:max-content;animation:scroll 26s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-track span{font-size:1.05rem;font-weight:700;color:var(--txt-3);white-space:nowrap;
  letter-spacing:.04em;transition:.3s}
.marquee-track span:hover{color:var(--txt)}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ---- 解决方案页 ---- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split.rev .split-media{order:-1}
.check-list{display:grid;gap:14px;margin-top:26px}
.check-list li{display:flex;gap:12px;align-items:flex-start;color:var(--txt-2);font-size:.96rem}
.check-list svg{width:20px;height:20px;flex:none;margin-top:3px;stroke:var(--cyan);fill:none;
  stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.pain-card{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--blue);
  border-radius:var(--radius-sm);padding:20px 22px}
.pain-card h4{font-size:1rem;margin-bottom:8px}
.pain-card p{color:var(--txt-2);font-size:.92rem}

/* ---- 产品页 ---- */
.product{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:72px 0;border-bottom:1px solid var(--line)}
.product:last-of-type{border-bottom:0}
.product.rev .product-media{order:-1}
.tag-row{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0 28px}
.tag{padding:6px 14px;border-radius:999px;font-size:.8rem;background:var(--panel);
  border:1px solid var(--line);color:var(--txt-2)}
.feature-mini{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line)}
.feature-mini:last-child{border-bottom:0}
.feature-mini svg{width:20px;height:20px;flex:none;margin-top:4px;stroke:var(--cyan);fill:none;
  stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.feature-mini h4{font-size:.98rem;margin-bottom:4px}
.feature-mini p{font-size:.88rem;color:var(--txt-2)}

/* 架构图 */
.arch{display:grid;gap:14px}
.arch-row{border:1px solid var(--line);border-radius:14px;padding:18px;background:var(--panel)}
.arch-row h4{font-size:.82rem;color:var(--txt-3);letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.arch-items{display:flex;gap:10px;flex-wrap:wrap}
.chip{padding:9px 15px;border-radius:10px;font-size:.85rem;background:rgba(47,123,255,.12);
  border:1px solid var(--line-strong);color:var(--txt)}
.chip.alt{background:rgba(139,92,246,.12)}
.chip.alt2{background:rgba(34,211,238,.1)}

/* ---- 表格 ---- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel)}
table{width:100%;border-collapse:collapse;min-width:680px}
th,td{padding:16px 20px;text-align:left;font-size:.92rem;border-bottom:1px solid var(--line)}
th{font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--txt-3);
  background:rgba(255,255,255,.55);font-weight:600}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:rgba(47,123,255,.05)}
td:first-child{font-weight:600;color:var(--txt)}
.check-ico{color:var(--cyan);font-weight:700}
.muted-ico{color:var(--txt-3)}

/* ---- 统计条 ---- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.stat{background:var(--bg-2);padding:34px 24px;text-align:center}
.stat b{display:block;font-size:clamp(1.7rem,3vw,2.3rem);font-weight:800;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:.86rem;color:var(--txt-3)}

/* ---- CTA ---- */
.cta-band{position:relative;border:1px solid rgba(245,137,23,.28);border-radius:24px;padding:64px 48px;
  text-align:center;overflow:hidden;
  background:linear-gradient(150deg,rgba(245,137,23,.12),rgba(47,123,255,.1) 50%,rgba(255,255,255,.72))}
.cta-band::after{content:"";position:absolute;inset:-40%;pointer-events:none;
  background:conic-gradient(from 0deg,transparent,rgba(245,137,23,.16),transparent 35%);
  animation:spin 14s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.cta-band > *{position:relative;z-index:1}
.cta-band p{color:var(--txt-2);max-width:600px;margin:16px auto 32px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---- 表单 ---- */
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start}
.form-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);padding:34px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow)}
.field{margin-bottom:20px}
.field label{display:block;font-size:.86rem;color:var(--txt-2);margin-bottom:8px}
.field label b{color:#e11d48}
.input,select,textarea{width:100%;padding:13px 15px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.78);border:1px solid var(--line);color:var(--txt);
  font-size:.94rem;font-family:inherit;transition:.22s;outline:none}
.input::placeholder,textarea::placeholder{color:var(--txt-3)}
.company-hint{
  margin:8px 0 0;min-height:1.2em;font-size:.78rem;line-height:1.4;color:var(--txt-3);
}
.company-hint.is-pending{color:#0369a1}
.company-hint.is-ok{color:#0f766e}
.company-hint.is-bad{color:#be123c}
.input.is-ok{border-color:rgba(15,118,110,.45)}
.input.is-bad{border-color:rgba(190,18,60,.45)}
.input:focus,select:focus,textarea:focus{border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(47,123,255,.16);background:#fff}
select option{background:#fff;color:var(--txt)}
textarea{resize:vertical;min-height:118px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-note{font-size:.8rem;color:var(--txt-3);margin-top:14px}
.form-msg{display:none;margin-top:16px;padding:13px 16px;border-radius:var(--radius-sm);
  font-size:.9rem;background:rgba(8,145,178,.08);border:1px solid rgba(8,145,178,.28);color:#0e7490}
.form-msg.show{display:block}

.info-item{display:flex;gap:16px;padding:22px 0;border-bottom:1px solid var(--line)}
.info-item:last-child{border-bottom:0}
.info-item .icon-box{width:44px;height:44px;border-radius:12px;margin:0;flex:none}
.info-item .icon-box svg{width:20px;height:20px}
.info-item h4{font-size:.95rem;margin-bottom:6px}
.info-item p,.info-item a{font-size:.92rem;color:var(--txt-2)}
.info-item a:hover{color:var(--cyan)}

.map-box{position:relative;height:280px;border-radius:var(--radius);border:1px solid var(--line);
  overflow:hidden;background:
   linear-gradient(rgba(120,160,255,.07) 1px,transparent 1px) 0 0/40px 40px,
   linear-gradient(90deg,rgba(120,160,255,.07) 1px,transparent 1px) 0 0/40px 40px,
   radial-gradient(circle at 60% 45%,rgba(47,123,255,.2),transparent 65%),var(--bg-2);
  display:grid;place-items:center;text-align:center}
.map-box .pin{width:16px;height:16px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 8px rgba(34,211,238,.18),0 0 24px var(--cyan);margin:0 auto 16px;
  animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 8px rgba(34,211,238,.18),0 0 24px var(--cyan)}
  50%{box-shadow:0 0 0 18px rgba(34,211,238,.04),0 0 24px var(--cyan)}}
.map-box p{color:var(--txt-2);font-size:.92rem}

/* ---- FAQ ---- */
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--panel);
  margin-bottom:14px;overflow:hidden;transition:.25s}
.faq-item:hover{border-color:var(--line-strong)}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:18px;
  padding:20px 24px;cursor:pointer;font-weight:600;font-size:1rem}
.faq-q i{font-style:normal;color:var(--cyan);font-size:1.3rem;transition:transform .3s;flex:none}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 24px 22px;color:var(--txt-2);font-size:.94rem}

/* ---- 一屏壳层 ---- */
html,body{height:100%}
body.page-shell{
  min-height:100vh;min-height:100dvh;
  display:flex;flex-direction:column;
  overflow:hidden;
}
.shell-main{
  flex:1;display:flex;align-items:center;justify-content:center;
  padding:88px 24px 20px;position:relative;z-index:1;
  min-height:0;
}
.shell-stage{text-align:center;max-width:720px;padding:0 12px}
.shell-logo{
  width:min(420px,78vw);height:auto;margin:0 auto 22px;
  filter:drop-shadow(0 14px 28px rgba(47,100,180,.18));
}
.shell-title{
  font-size:clamp(2rem,5vw,3.2rem);font-weight:800;letter-spacing:.04em;
  margin:0 0 14px;
}
.shell-sub{color:var(--txt-2);font-size:1.05rem;margin:0}
.shell-actions{margin-top:28px;display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.shell-contact-list{
  list-style:none;margin:28px auto 0;padding:0;max-width:460px;
  text-align:left;display:grid;gap:16px;
}
.shell-contact-list li{
  display:grid;grid-template-columns:64px 1fr;gap:12px;align-items:baseline;
  padding:14px 18px;border:1px solid var(--line);border-radius:14px;background:var(--glass);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.shell-contact-list span{color:var(--txt-3);font-size:.86rem}
.shell-contact-list a,.shell-contact-list em{
  color:var(--txt);font-style:normal;font-size:1rem;word-break:break-all;
}
.shell-contact-list a:hover{color:var(--cyan)}
.shell-demo-lead{
  color:var(--txt-2);font-size:.92rem;margin:0 0 22px;line-height:1.55;
}
.code-row{display:flex;gap:10px;align-items:stretch}
.code-row .input{flex:1;min-width:0}
.code-row .btn{
  flex:none;white-space:nowrap;min-width:118px;justify-content:center;
}
.code-row .btn:disabled{opacity:.55;cursor:not-allowed}
.surname-row{
  display:flex;gap:12px;align-items:center;flex-wrap:wrap;
}
.surname-row .input{
  flex:0 1 140px;width:auto;min-width:96px;max-width:180px;
}
.title-opts{
  display:flex;gap:8px;align-items:center;flex:0 0 auto;
}
.title-opt{
  display:inline-flex;align-items:center;gap:6px;
  margin:0;padding:8px 12px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.78);
  font-size:.9rem;color:var(--txt);cursor:pointer;user-select:none;
}
.title-opt:has(input:checked){
  border-color:rgba(47,123,255,.45);
  background:rgba(47,123,255,.08);
  color:var(--txt);
}
.title-opt input{
  width:auto;margin:0;accent-color:var(--blue);
}

/* ---- 预约演示弹窗 ---- */
body.demo-modal-open{overflow:hidden}
.demo-modal{
  position:fixed;inset:0;z-index:100000;
  display:flex;align-items:center;justify-content:center;
  padding:24px 16px;
}
.demo-modal[hidden]{display:none !important}
.demo-modal-backdrop{
  position:absolute;inset:0;
  background:rgba(20,35,61,.42);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.demo-modal-panel{
  position:relative;z-index:1;
  width:min(440px,100%);
  max-height:min(90vh,720px);
  overflow:auto;
  padding:28px 26px 24px;
  border-radius:18px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);
  box-shadow:0 28px 64px rgba(20,35,61,.22);
}
.demo-modal-panel h2{
  font-size:1.35rem;margin:0 0 8px;letter-spacing:.02em;
  padding-right:36px;
}
.demo-modal-close{
  position:absolute;top:12px;right:12px;
  width:36px;height:36px;border:0;border-radius:10px;
  background:transparent;color:var(--txt-3);font-size:1.5rem;line-height:1;
  cursor:pointer;display:grid;place-items:center;
}
.demo-modal-close:hover{background:rgba(47,100,180,.08);color:var(--txt)}
.demo-toast{
  position:fixed;left:50%;bottom:28px;z-index:100001;
  transform:translateX(-50%) translateY(16px);
  max-width:min(420px,calc(100vw - 32px));
  padding:14px 18px;border-radius:12px;
  font-size:.95rem;line-height:1.45;font-weight:600;
  box-shadow:0 16px 40px -18px rgba(20,35,61,.45);
  opacity:0;pointer-events:none;
  transition:opacity .25s,transform .25s;
}
.demo-toast.show{opacity:1;transform:translateX(-50%) translateY(0);pointer-events:auto}
.demo-toast.is-ok{
  background:#ecfdf5;border:1px solid rgba(15,118,110,.35);color:#0f766e;
}
.demo-toast.is-bad{
  background:#fff1f2;border:1px solid rgba(190,18,60,.35);color:#be123c;
}
@media (max-width:560px){
  .demo-modal{padding:12px;align-items:flex-end}
  .demo-modal-panel{width:100%;border-radius:18px 18px 12px 12px;padding:22px 18px 18px}
  .code-row{flex-direction:column}
  .code-row .btn{width:100%;min-height:44px}
  .demo-toast{bottom:18px}
}

/* ---- 首页四宫格（图文并茂） ---- */
.home-main{
  align-items:stretch;justify-content:center;
  padding:72px 96px 0; /* 左右对称，与顶栏 1480 居中对齐 */
}
.home-quad{
  flex:1 1 0;align-self:stretch;
  width:100%;max-width:1480px;margin:0 auto;
  padding:0;
  display:grid;
  grid-template-columns:1fr 1fr;
  grid-template-rows:1fr 1fr;
  grid-template-areas:
    "tl tr"
    "bl br";
  min-height:0;
  gap:0;
  border:0;
  background:transparent;
  backdrop-filter:none;-webkit-backdrop-filter:none;
  overflow:hidden;
  box-shadow:none;
}
.home-cell--tl{grid-area:tl}
.home-cell--tr,.home-cell--top{grid-area:tr}
.home-cell--bl,.home-cell--bottom{grid-area:bl}
.home-cell--br{grid-area:br}
.home-cell{
  min-width:0;min-height:0;
  box-sizing:border-box;
  padding:clamp(14px,2vh,26px) 24px; /* 24px 对齐 .wrap 左右内边距 → 与 logo 齐平 */
  display:flex;align-items:center;gap:clamp(12px,1.6vw,22px);
  overflow:hidden;
  position:relative;
}
/* 左列共用内边距，保证下方文字与上方插画左右对齐 */
.home-cell--tl,
.home-cell--bl{
  border:0;
  padding:clamp(12px,1.8vh,22px) 24px;
  justify-content:center;
}
.home-tl-art{
  width:100%;height:100%;
  max-height:100%;
  object-fit:contain;object-position:center;
  display:block;
  background:transparent;
}
/* 右上：纵向清单 */
.home-cell--tr,.home-cell--top{
  border:0;
  flex-direction:column;align-items:stretch;justify-content:center;
}
/* 左下：文案（与左上同列；左缩进对齐插画最左侧图形） */
.home-cell--bl,.home-cell--bottom{
  border:0;
  flex-direction:column;align-items:stretch;justify-content:center;
}
.home-cell--bl .home-copy{
  /* 插画透明边距约 14%，与图中最左侧设备对齐 */
  padding-left:14%;
  box-sizing:border-box;
  width:100%;
}
/* 右下：中台插画（与右上同列、同内边距对齐） */
.home-cell--br{
  border:0;
  justify-content:flex-start;
  padding:clamp(12px,1.8vh,22px) 24px;
}
.home-cell--tr,
.home-cell--br{
  /* 右列共用左右内边距，保证上下文字/图标签齐平 */
  padding-left:24px;
  padding-right:24px;
}
/* 右上：柔和径向，压淡氛围底图，保证文案清晰 */
.home-cell--tr::before{
  content:"";
  position:absolute;inset:2% 0;
  background:radial-gradient(ellipse 78% 72% at 50% 48%,
    rgba(255,255,255,.92) 0%,
    rgba(238,244,251,.78) 46%,
    rgba(238,244,251,0) 76%);
  pointer-events:none;z-index:0;
}
.home-cell--tr > *,
.home-cell--br .home-br-art{position:relative;z-index:1}
.home-br-art{
  width:100%;height:100%;
  max-height:100%;
  object-fit:contain;object-position:left center;
  display:block;
  background:transparent;
  /* 整体略向左，避免贴右 */
  transform:translateX(-4%);
}
.home-copy{flex:1 1 0;min-width:0;display:flex;flex-direction:column;justify-content:center}
.home-visual{flex:0 0 auto;width:min(42%,220px);min-width:150px}
.home-kicker{
  margin:0 0 6px;font-size:.7rem;letter-spacing:.14em;
  color:var(--brand-2);font-weight:600;
}
.home-cell-title{
  margin:0 0 8px;font-size:clamp(.98rem,1.45vw,1.22rem);font-weight:800;
  color:var(--txt);line-height:1.3;
}
.home-pain{
  margin:0 0 8px;color:var(--txt-2);font-size:.94rem;line-height:1.55;
}
.home-pain-row{
  position:relative;
  margin:0; /* 行距仍由内部 .home-pain 的 margin 控制，文案排版与加图标前一致 */
}
.home-pain-row .home-pain{
  /* 文字保持原样，不被图标挤动 */
  margin:0 0 8px;
  padding-right:0;
}
.home-price-badge{
  position:absolute;
  right:clamp(28px,4vw,56px);top:50%;
  transform:translateY(-50%);
  width:clamp(72px,8.5vw,110px);height:auto;
  display:block;
  object-fit:contain;
  pointer-events:none;
  z-index:2;
}
.home-checks{
  list-style:none;margin:0 0 12px;padding:0;display:grid;gap:10px;
}
.home-checks li{
  position:relative;padding-left:1.35em;
  color:var(--txt);font-size:.92rem;line-height:1.55;
}
.home-checks li::before{
  content:"✓";position:absolute;left:0;top:0;
  color:#0e9f6e;font-weight:800;
}
.home-checks b{font-weight:700;color:var(--txt)}
.home-platform{
  margin:0 0 8px;color:var(--txt);font-size:.82rem;font-weight:600;line-height:1.45;
}
.home-platform strong{color:var(--cyan)}
.home-formula{
  list-style:none;margin:0;padding:0;display:grid;gap:5px;
}
.home-formula li{
  display:grid;grid-template-columns:5.8em minmax(0,1fr);gap:8px;align-items:start;
  font-size:.74rem;line-height:1.4;
}
.home-formula b{color:var(--brand-2);font-weight:700;white-space:nowrap}
.home-formula span{color:var(--txt-2);min-width:0}
.home-lead{
  margin:0 0 10px;font-size:clamp(1.15rem,1.85vw,1.4rem);font-weight:700;color:var(--txt);
}
.home-slogan{
  margin:0 0 10px;display:inline-block;width:fit-content;
  font-size:.82rem;font-weight:700;letter-spacing:.08em;
  color:#1a1006;background:linear-gradient(135deg,var(--brand),var(--brand-2));
  padding:5px 12px;border-radius:999px;
}
.home-desc{
  margin:0 0 8px;color:var(--txt-2);font-size:.9rem;line-height:1.55;
}
.home-tagline{
  margin:0;font-size:.95rem;font-weight:700;line-height:1.5;
  color:var(--txt);letter-spacing:.02em;
}
.home-sec-title{
  margin:0 0 12px;font-size:clamp(.95rem,1.35vw,1.12rem);
  letter-spacing:.02em;line-height:1.45;
  color:var(--txt);font-weight:700;
}
.home-cell--tr .home-sec-title{
  /* 仅标题视觉下移，不挤动下方 AnyNexus 布局 */
  margin:0 0 10px;
  flex:0 0 auto;
  position:relative;
  transform:translateY(clamp(40px,5.5vh,64px));
  z-index:2;
}
.home-capability-lead{
  margin:0 0 14px;color:var(--txt-3);font-size:7px;font-weight:600;
  letter-spacing:.12em;line-height:1.4;
}
.home-clients-note{
  margin:0 0 6px;color:var(--txt-2);font-size:.78rem;line-height:1.45;
}
.home-copy--br{margin-bottom:2px}

/* 1+N 平台示意 */
.viz-platform{
  position:relative;height:min(220px,36vh);width:100%;
  border-radius:16px;overflow:hidden;
  background:transparent;
  border:1px solid rgba(47,100,180,.18);
  box-shadow:none;
}
.viz-hub{
  position:absolute;left:50%;top:42%;transform:translate(-50%,-50%);
  width:92px;height:92px;border-radius:50%;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:transparent;
  border:1px solid rgba(47,123,255,.32);
  box-shadow:0 0 0 10px rgba(47,123,255,.06);
  text-align:center;z-index:2;
  animation:home-pulse 4.5s ease-in-out infinite;
}
.viz-hub-mark{
  font-size:1.35rem;font-weight:800;line-height:1;color:var(--blue);
  background:linear-gradient(120deg,var(--blue),var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.viz-hub strong{font-size:.72rem;margin-top:2px;color:var(--txt)}
.viz-hub em{font-style:normal;font-size:.58rem;color:var(--txt-3);margin-top:1px}
.viz-orbit{position:absolute;inset:10px;z-index:1}
.viz-node{
  position:absolute;display:flex;align-items:center;gap:5px;
  padding:5px 8px;border-radius:999px;font-size:.62rem;font-weight:600;color:var(--txt);
  background:transparent;border:1px solid rgba(47,100,180,.22);
  backdrop-filter:none;
  animation:home-float 5s ease-in-out infinite;
}
.viz-node i{
  width:6px;height:6px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 8px rgba(34,211,238,.7);
}
.viz-node.n1{top:10%;left:8%;animation-delay:.2s}
.viz-node.n2{top:8%;right:10%;animation-delay:.7s}
.viz-node.n3{top:38%;left:4%;animation-delay:1.1s}
.viz-node.n4{top:36%;right:4%;animation-delay:1.5s}
.viz-node.n5{bottom:28%;left:14%;animation-delay:.4s}
.viz-node.n6{bottom:28%;right:12%;animation-delay:1.8s;color:var(--brand-2);border-color:rgba(245,137,23,.4)}
.viz-node.n6 i{background:var(--brand)}
.viz-base{
  position:absolute;left:16px;right:16px;bottom:10px;z-index:2;
  text-align:center;font-size:.66rem;font-weight:700;letter-spacing:.12em;
  color:var(--brand-2);padding:6px 8px;border-radius:8px;
  background:linear-gradient(90deg,rgba(245,137,23,.08),rgba(245,137,23,.18),rgba(245,137,23,.08));
  border:1px solid rgba(245,137,23,.28);
}
@keyframes home-pulse{
  0%,100%{box-shadow:0 0 0 10px rgba(47,123,255,.08),0 12px 28px rgba(47,100,180,.16)}
  50%{box-shadow:0 0 0 16px rgba(47,123,255,.14),0 12px 28px rgba(47,100,180,.2)}
}
@keyframes home-float{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-5px)}
}

/* 核心产品图文行 */
.home-products{
  list-style:none;margin:0;padding:0;
  display:grid;gap:10px;flex:1;align-content:center;
}
.home-products li{
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:12px;align-items:center;min-width:0;
  padding:10px 12px;border-radius:14px;
  background:rgba(255,255,255,.88);
  border:1px solid rgba(47,100,180,.16);
  box-shadow:0 6px 18px -14px rgba(20,35,61,.22);
  transition:border-color .25s,background .25s,transform .25s,box-shadow .25s;
}
.home-products li:hover{
  border-color:rgba(47,100,180,.32);
  background:rgba(255,255,255,.96);
  transform:translateY(-1px);
  box-shadow:0 10px 22px -14px rgba(20,35,61,.28);
}
.hp-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  border:1px solid rgba(47,100,180,.28);
  background:#fff;
}
.hp-icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round}
.hp-icon--chat{color:#0e7490;background:rgba(8,145,178,.12)}
.hp-icon--disk{color:#1d4ed8;background:rgba(37,99,235,.12)}
.hp-icon--mark{color:#6d28d9;background:rgba(109,40,217,.12)}
.home-products li.is-link{
  display:block;
  padding:0;background:transparent;border-color:transparent;box-shadow:none;
}
.home-product-link{
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:12px;align-items:center;min-width:0;width:100%;
  box-sizing:border-box;
  padding:10px 12px;border-radius:14px;
  background:rgba(255,255,255,.9);
  border:1px solid rgba(8,145,178,.32);
  color:inherit;text-decoration:none;cursor:pointer;
  box-shadow:0 6px 18px -14px rgba(20,35,61,.22);
  transition:border-color .25s,background .25s,transform .25s,box-shadow .25s;
}
.home-product-link:hover,
.home-product-link:focus-visible{
  border-color:rgba(8,145,178,.55);
  background:#fff;
  transform:translateY(-1px);
  box-shadow:0 10px 22px -14px rgba(20,35,61,.28);
  outline:none;
}
.hp-appico{
  width:44px;height:44px;border-radius:12px;object-fit:contain;display:block;
  border:1px solid rgba(47,100,180,.22);
  background:#fff;
}
.hp-body{min-width:0;display:grid;gap:2px}
.hp-body strong{
  font-size:1.08rem;font-weight:800;color:var(--txt);
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.hp-link-hint{
  font-size:.8rem;font-weight:600;color:#0e7490;
  text-decoration:underline;text-underline-offset:2px;
  opacity:1;
}
.home-product-link:hover .hp-body strong{color:#0f172a}
.home-product-link:hover .hp-link-hint{color:var(--blue)}
.hp-body > span{color:#334155;font-size:.88rem;line-height:1.45}

/* 中台能力卡 */
.viz-stack{
  display:grid;grid-template-columns:1fr 1fr;gap:8px;
  width:100%;
}
.viz-stack-card{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  min-height:78px;padding:12px 8px;border-radius:14px;text-align:center;
  border:1px solid rgba(47,100,180,.14);
  background:transparent;
  transition:transform .25s,border-color .25s;
}
.viz-stack-card:hover{transform:translateY(-2px);border-color:rgba(47,100,180,.3)}
.viz-stack-card svg{
  width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round;
}
.viz-stack-card span{font-size:.82rem;font-weight:600;color:var(--txt)}
.viz-stack-card.c1{color:var(--brand-2);background:transparent}
.viz-stack-card.c2{color:var(--cyan);background:transparent}
.viz-stack-card.c3{color:#2563eb;background:transparent}
.viz-stack-card.c4{color:#7c3aed;background:transparent}

/* 客户 Logo */
.home-clients{
  list-style:none;margin:0;padding:0;
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;width:100%;max-width:420px;
}
.home-clients li{
  display:flex;align-items:center;justify-content:center;
  min-width:0;height:68px;padding:12px 14px;box-sizing:border-box;
  border-radius:14px;overflow:hidden;isolation:isolate;
  /* Logo 素材偏浅色，用深色托底保证可读 */
  background:
    radial-gradient(80px 40px at 50% 0%,rgba(120,160,255,.18),transparent 70%),
    linear-gradient(160deg,#1a2740,#121a2c);
  border:1px solid rgba(47,100,180,.2);
  transition:border-color .25s,transform .25s,box-shadow .25s;
}
.home-clients li:hover{border-color:rgba(120,160,255,.4);transform:translateY(-1px);
  box-shadow:0 10px 24px rgba(20,35,61,.18)}
.home-clients img{
  display:block;width:auto;height:auto;
  max-width:100%;max-height:36px;
  object-fit:contain;object-position:center;
}
.footer.footer-slim{
  margin-top:0;padding:0 0 6px !important;background:transparent;position:relative;z-index:1;
  flex:0 0 auto;border-top:0;
}
.footer.footer-slim .wrap{padding:0 24px}
.footer.footer-slim .legal{
  border-top:1px solid var(--line);padding-top:6px;margin:0;
  font-size:.78rem;min-height:0;gap:8px;
}

/* float: keep clear of client logos (must beat base !important) */
.page-shell .float-contact{
  top:28% !important;bottom:auto !important;transform:translateY(-50%) !important;
}

@media (max-width:1100px){
  .home-visual{width:min(40%,190px);min-width:140px}
  .home-products li{grid-template-columns:40px minmax(0,1fr);gap:10px;padding:9px 10px}
  .home-product-link{grid-template-columns:40px minmax(0,1fr);gap:10px;padding:9px 10px}
}
@media (max-width:900px){
  body.page-shell{overflow:auto}
  .shell-main{padding:100px 18px 28px}
  .home-main{padding:88px 14px 20px}
  .home-quad{
    grid-template-columns:1fr;grid-template-rows:auto;
    grid-template-areas:
      "tl"
      "tr"
      "bl"
      "br";
    height:auto;border:0;
  }
  .home-cell{
    border:0 !important;
    padding:22px 8px;flex-direction:column !important;align-items:stretch;
  }
  .home-cell--tl,
  .home-cell--br{min-height:200px}
  .home-cell--bl .home-copy{padding-left:10%}
  .home-visual{width:100%;min-width:0;max-width:280px;margin:0 auto}
  .home-formula li{grid-template-columns:1fr}
  .home-clients{width:100%;max-width:320px}
  .page-shell .float-contact{top:auto !important;bottom:20px !important;transform:none !important}
}
@media (max-height:760px){
  .home-cell{padding:10px 14px;gap:10px}
  .home-cell-title{font-size:.95rem}
  .home-pain,.home-desc,.hp-body span,.home-formula li{font-size:.82rem}
  .home-checks li{font-size:.86rem}
  .home-tagline{font-size:.9rem}
  .home-formula{gap:4px}
  .home-products{gap:7px}
  .viz-platform{height:160px}
  .viz-hub{width:76px;height:76px}
  .viz-stack-card{min-height:64px;padding:8px}
  .home-clients li{height:54px}
  .home-clients img{max-height:28px}
}

/* ---- 页脚 ---- */
.footer{border-top:1px solid var(--line);background:rgba(255,255,255,.62);padding:64px 0 28px;margin-top:40px;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer h4{font-size:.86rem;letter-spacing:.1em;text-transform:uppercase;color:var(--txt-3);
  margin-bottom:18px;font-weight:600}
.footer ul{display:grid;gap:11px}
.footer ul a{font-size:.92rem;color:var(--txt-2);transition:.2s}
.footer ul a:hover{color:var(--cyan)}
.footer-about p{font-size:.92rem;color:var(--txt-2);margin:18px 0 22px;max-width:330px}
.legal{border-top:1px solid var(--line);padding-top:26px;display:flex;justify-content:space-between;
  gap:18px;flex-wrap:wrap;align-items:center;font-size:.84rem;color:var(--txt-3)}
.legal a{color:var(--txt-3)}
.legal a:hover{color:var(--cyan)}
.beian{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.beian svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.6}

/* ---- 面包屑/页头 ---- */
.page-hero{padding:150px 0 56px;text-align:center;position:relative}
.page-hero p{color:var(--txt-2);max-width:660px;margin:18px auto 0;font-size:1.04rem}

/* ---- 滚动动效 ---- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}

/* ---- 404 ---- */
.err-code{font-size:clamp(5rem,16vw,11rem);font-weight:900;line-height:1;letter-spacing:-.04em;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---- 右侧联系窗口 ---- */
.float-contact{
  position:fixed !important;
  right:18px !important;
  top:50% !important;
  left:auto !important;
  bottom:auto !important;
  transform:translateY(-50%) !important;
  z-index:99999 !important;
  writing-mode:horizontal-tb !important;
  display:flex !important;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:10px;
  width:72px;
  min-height:180px;
  padding:22px 12px;
  border-radius:18px;
  background:linear-gradient(180deg,#ff9a2e 0%,#f58917 55%,#e07810 100%);
  color:#1a1006;
  font-weight:800;
  font-size:1.05rem;
  letter-spacing:.12em;
  line-height:1.45;
  box-shadow:0 16px 40px rgba(245,137,23,.5),0 0 0 1px rgba(255,255,255,.2) inset;
  text-decoration:none !important;
  visibility:visible !important;
  opacity:1 !important;
  pointer-events:auto !important;
  text-align:center;
}
.float-contact:hover{
  filter:brightness(1.08);
  transform:translateY(-50%) scale(1.04) !important;
}
.float-contact svg{
  width:26px;height:26px;flex:none;
  stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;
  transform:none !important;
}
.float-contact span{
  display:block;
  writing-mode:vertical-rl;
  text-orientation:upright;
  letter-spacing:.35em;
}

/* ---- 响应式 ---- */
@media (max-width:1080px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .g4{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .nav-links{position:fixed;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;
    gap:4px;padding:18px 24px 26px;background:rgba(255,255,255,.96);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);transform:translateY(-140%);transition:transform .35s;
    opacity:0;pointer-events:none}
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a{padding:14px 16px;border-radius:12px}
  .nav-dd{flex-direction:column;align-items:stretch;width:100%}
  .nav-dd-trigger{width:100%;justify-content:flex-start;border-radius:12px;padding:14px 16px}
  .nav-dd-menu{
    position:static;display:none;min-width:0;margin:0;padding:0 0 0 8px;
    background:transparent;
  }
  .nav-dd-menu-panel{
    border:0;box-shadow:none;background:transparent;backdrop-filter:none;padding:4px 0;
  }
  .nav-dd.open .nav-dd-menu{display:block}
  .nav-dd:hover .nav-dd-menu{display:none}
  .nav-dd.open .nav-dd-menu{display:block}

  .burger{display:grid}
  .nav-cta .btn{display:none}
  .hero{padding:130px 0 70px}
  .hero-grid,.split,.product,.contact-grid{grid-template-columns:1fr;gap:44px}
  .split.rev .split-media,.product.rev .product-media{order:0}
  .section{padding:70px 0}
  .g2,.g3{grid-template-columns:1fr}
  .cta-band{padding:48px 26px}
}
@media (max-width:560px){
  .wrap{padding:0 18px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .g4,.stats{grid-template-columns:1fr}
  .row2{grid-template-columns:1fr}
  .mock-body{grid-template-columns:1fr}
  .mock-side{flex-direction:row;border-right:0;border-bottom:1px solid var(--line);padding:12px}
  .float-tag{display:none}
  .form-card{padding:24px 20px}
  .shell-demo-card{padding:22px 18px}
  .code-row{flex-direction:column}
  .code-row .btn{width:100%;min-height:44px}
  .float-contact{right:10px !important;width:64px;min-height:160px;padding:18px 10px;font-size:.95rem}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}