/* ============ Anahtech 设计系统 ============ */
:root{
  --bg:#05070f;
  --bg-2:#080c18;
  --panel:rgba(255,255,255,.04);
  --panel-strong:rgba(255,255,255,.07);
  --line:rgba(120,160,255,.16);
  --line-strong:rgba(120,160,255,.32);
  --txt:#e8eefc;
  --txt-2:#9aa8c7;
  --txt-3:#6b7a9c;
  --blue:#2f7bff;
  --cyan:#22d3ee;
  --violet:#8b5cf6;
  --brand:#f58917;
  --brand-2:#ffa940;
  --grad:linear-gradient(120deg,#2f7bff 0%,#22d3ee 50%,#8b5cf6 100%);
  --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:
  radial-gradient(1100px 700px at 12% -8%,rgba(47,123,255,.20),transparent 60%),
  radial-gradient(900px 600px at 92% 4%,rgba(139,92,246,.16),transparent 60%),
  radial-gradient(1000px 800px at 50% 108%,rgba(34,211,238,.10),transparent 60%),
  var(--bg);}
.bg-grid{position:fixed;inset:0;z-index:-2;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(120,160,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,160,255,.06) 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:.75}

/* ---- 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:100;transition:.3s;
  border-bottom:1px solid transparent}
.header.scrolled{background:rgba(5,7,15,.78);backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);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:40px;width:auto;flex:none}
.footer .logo-img{height:44px}
.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-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:#03060f;box-shadow:0 10px 30px rgba(47,123,255,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(47,123,255,.5)}
.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}
.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,.16),transparent 65%)}
.card:hover{transform:translateY(-6px);border-color:var(--line-strong);
  box-shadow:0 26px 60px -24px rgba(47,123,255,.55)}
.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(12,18,34,.96),rgba(6,9,18,.96));
  box-shadow:0 40px 90px -30px rgba(47,123,255,.55);overflow:hidden}
.mock::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(500px 300px at 80% -10%,rgba(139,92,246,.22),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,.02)}
.dot{width:10px;height:10px;border-radius:50%;background:#2a3550}
.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,.35),rgba(34,211,238,.2));
  color:#fff;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,.02)}
.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(34,211,238,.35);
  padding:3px 10px;border-radius:999px;background:rgba(34,211,238,.08)}
.float-tag{position:absolute;z-index:3;padding:10px 16px;border-radius:12px;font-size:.8rem;font-weight:600;
  background:rgba(8,12,24,.9);border:1px solid var(--line-strong);backdrop-filter:blur(10px);
  box-shadow:0 16px 34px -14px rgba(0,0,0,.9);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,.03);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,.3);border-radius:24px;padding:64px 48px;
  text-align:center;overflow:hidden;
  background:linear-gradient(150deg,rgba(245,137,23,.14),rgba(47,123,255,.12) 50%,rgba(6,9,18,.6))}
.cta-band::after{content:"";position:absolute;inset:-40%;pointer-events:none;
  background:conic-gradient(from 0deg,transparent,rgba(245,137,23,.2),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(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:34px}
.field{margin-bottom:20px}
.field label{display:block;font-size:.86rem;color:var(--txt-2);margin-bottom:8px}
.field label b{color:#ff6b81}
.input,select,textarea{width:100%;padding:13px 15px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.03);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)}
.input:focus,select:focus,textarea:focus{border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(47,123,255,.18);background:rgba(47,123,255,.05)}
select option{background:#0a0f1c}
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(34,211,238,.1);border:1px solid rgba(34,211,238,.35);color:#bff5fb}
.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}

/* ---- 页脚 ---- */
.footer{border-top:1px solid var(--line);background:rgba(5,7,15,.6);padding:64px 0 28px;margin-top:40px}
.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(5,7,15,.97);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}
  .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}
  .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}
}