/* =========================================================
   星瀚科技 XINGHAN TECHNOLOGY — 企业官网样式（大厂风 · 浅色）
   2026-11 重建版
   ========================================================= */
:root{
  --ink:#0A1A33; --ink-2:#22334F; --muted:#5A6B85; --muted-2:#8494AC;
  --blue:#1B4DE4; --blue-2:#2F6BFF; --blue-soft:#E8EFFF; --blue-deep:#0E2A66;
  --gold:#B8862F; --gold-soft:#FBF3E3;
  --bg:#FFFFFF; --bg-2:#F6F8FC; --bg-3:#EEF3FA; --line:#E3E9F2; --line-2:#C9D6E8;
  --code-bg:#0A1428; --code-fg:#C6D6EE;
  --sans:"Noto Sans SC","Microsoft YaHei",-apple-system,"Segoe UI",sans-serif;
  --mono:"Cascadia Mono","Consolas","SFMono-Regular",ui-monospace,monospace;
  --max:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{width:min(var(--max),calc(100% - 96px));margin:0 auto}
section{padding:92px 0}
.kicker{font-family:var(--mono);font-size:11px;letter-spacing:.26em;color:var(--blue);text-transform:uppercase;display:flex;align-items:center;gap:12px}
.kicker::before{content:"";width:26px;height:2px;background:var(--blue)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:4px;font-size:14.5px;font-weight:600;transition:.2s;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 24px rgba(27,77,228,.22)}
.btn-primary:hover{background:#163FC2;box-shadow:0 10px 28px rgba(27,77,228,.3)}
.btn-ghost{border-color:var(--line-2);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn .arw{transition:transform .2s}
.btn:hover .arw{transform:translateX(3px)}
.cta{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 顶部公告条 ---------- */
.announce{background:linear-gradient(90deg,#0A1A33,#14306B);color:#DDE7FA;font-size:12.5px;letter-spacing:.02em}
.announce .wrap{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px}
.announce b{color:#fff;font-weight:600}
.announce a{color:#A9C2FF;white-space:nowrap}
.announce a:hover{color:#fff}

/* ---------- 导航 ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:11px}
.brand .mark{width:40px;height:40px;object-fit:contain}
.brand .txt{display:flex;flex-direction:column;gap:2px}
.brand .cn{font-size:17px;font-weight:800;letter-spacing:.12em;line-height:1.1;color:var(--ink)}
.brand .en{font-family:var(--mono);font-size:8px;letter-spacing:.28em;color:var(--muted-2)}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:14px;color:var(--ink-2);letter-spacing:.02em;padding:6px 0;border-bottom:2px solid transparent}
.nav-links a:hover{color:var(--blue);border-bottom-color:var(--blue)}
.nav-links a.active{color:var(--blue);border-bottom-color:var(--blue)}
.nav-right{display:flex;align-items:center;gap:18px}
.nav-tel{font-family:var(--mono);font-size:12px;color:var(--muted)}
.nav-cta{background:var(--blue);color:#fff;font-size:13.5px;padding:9px 18px;border-radius:4px;font-weight:600}
.nav-cta:hover{background:#163FC2}
.nav-toggle{display:none;background:none;border:0;color:var(--ink);font-size:22px;cursor:pointer;padding:6px}

/* ---------- 首页 Hero ---------- */
.hero{position:relative;background:
  radial-gradient(1200px 640px at 78% -12%, #E4EDFF 0%, rgba(255,255,255,0) 62%),
  radial-gradient(700px 500px at 6% 8%, #F2F6FF 0%, rgba(255,255,255,0) 60%),
  #fff;
  padding:76px 0 88px;overflow:hidden;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;background-image:
  linear-gradient(rgba(27,77,228,.04) 1px,transparent 1px),
  linear-gradient(90deg,rgba(27,77,228,.04) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(900px 520px at 70% 10%,#000 0%,transparent 76%);
  -webkit-mask-image:radial-gradient(900px 520px at 70% 10%,#000 0%,transparent 76%)}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;position:relative}
.hero .kicker{margin-bottom:22px}
.hero h1{font-size:clamp(38px,4.4vw,58px);line-height:1.22;font-weight:900;letter-spacing:-.02em;color:var(--ink)}
.hero h1 em{font-style:normal;color:var(--blue)}
.hero .lead{margin-top:22px;max-width:560px;color:var(--muted);font-size:16px;line-height:2}
.hero .lead b{color:var(--ink);font-weight:600}
.hero .cta{margin-top:34px}
.hero .nums{display:flex;gap:40px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line);flex-wrap:wrap}
.hero .nums div{display:flex;flex-direction:column;gap:2px}
.hero .nums b{font-family:var(--mono);font-size:24px;font-weight:600;color:var(--ink);letter-spacing:.01em}
.hero .nums span{font-size:12px;color:var(--muted-2);letter-spacing:.06em}
.hero-art{position:relative;min-height:440px}
.hero-art .card{position:absolute;border:1px solid var(--line);border-radius:10px;background:#fff;box-shadow:0 24px 60px rgba(15,35,80,.12)}
.hero-art .code{left:0;top:18px;width:min(540px,100%);background:var(--code-bg);border-color:#16233D;box-shadow:0 30px 70px rgba(10,22,50,.3)}
.hero-art .code .bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid rgba(142,170,220,.16)}
.hero-art .code .bar i{width:9px;height:9px;border-radius:50%;background:#33415C;display:block}
.hero-art .code .bar i:nth-child(1){background:#FF6B6B}
.hero-art .code .bar i:nth-child(2){background:#FFC857}
.hero-art .code .bar i:nth-child(3){background:#3FE0FF}
.hero-art .code .bar .f{margin-left:8px;font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:#6F84A6}
.hero-art .code pre{padding:20px 22px 24px;font-family:var(--mono);font-size:12.5px;line-height:1.95;color:var(--code-fg);overflow:auto}
.hero-art .code .kw{color:#8FC4FF}.hero-art .code .ty{color:#F3D08A}.hero-art .code .num{color:#7FE3B4}.hero-art .code .fn{color:#C6A8FF}.hero-art .code .cm{color:#5B6E8C}
.hero-art .badge{display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:8px;font-size:12.5px;color:var(--ink-2);font-weight:600}
.hero-art .badge .dot{width:7px;height:7px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px rgba(27,77,228,.12)}
.hero-art .b1{right:-6px;top:-6px}
.hero-art .b2{right:26px;bottom:36px}
.hero-art .b3{left:22px;bottom:-8px}
.hero-art .glow{position:absolute;right:-80px;bottom:-60px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,107,255,.14),rgba(47,107,255,0) 65%)}

/* ---------- 子页 Hero ---------- */
.page-hero{position:relative;background:
  radial-gradient(1000px 520px at 82% -20%, #E7EEFF 0%, rgba(255,255,255,0) 62%),
  #fff;
  padding:70px 0 56px;border-bottom:1px solid var(--line);overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:
  linear-gradient(rgba(27,77,228,.035) 1px,transparent 1px),
  linear-gradient(90deg,rgba(27,77,228,.035) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(900px 420px at 75% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(900px 420px at 75% 0%,#000 0%,transparent 78%)}
.page-hero .wrap{position:relative}
.page-hero h1{font-size:clamp(30px,3.6vw,46px);line-height:1.28;font-weight:900;letter-spacing:-.015em;margin:18px 0 16px;max-width:900px}
.page-hero h1 em{font-style:normal;color:var(--blue)}
.page-hero .lead{max-width:760px;color:var(--muted);font-size:15.5px;line-height:2}
.page-hero .meta{display:flex;gap:10px 24px;flex-wrap:wrap;margin-top:24px;font-size:12.5px;color:var(--muted-2);letter-spacing:.04em}
.page-hero .meta span{display:inline-flex;align-items:center;gap:8px}
.page-hero .meta span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--blue)}
.page-hero .cta{margin-top:28px}

/* ---------- 数据条 ---------- */
.metrics{border-bottom:1px solid var(--line);background:var(--bg-2)}
.metrics .row{display:grid;grid-template-columns:repeat(4,1fr)}
.metrics .cell{padding:28px 32px;border-right:1px solid var(--line)}
.metrics .cell:last-child{border-right:0}
.metrics b{font-family:var(--mono);font-size:28px;font-weight:600;color:var(--ink)}
.metrics b small{font-size:13px;color:var(--blue);margin-left:4px;font-family:var(--sans);font-weight:600}
.metrics span{display:block;margin-top:6px;font-size:12.5px;color:var(--muted-2);letter-spacing:.04em}

/* ---------- 通用 section ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:48px}
.sec-head h2{font-size:clamp(28px,3vw,40px);font-weight:900;letter-spacing:-.01em;line-height:1.3;color:var(--ink);margin-top:16px}
.sec-head p{max-width:440px;color:var(--muted);font-size:14.5px;line-height:1.95}

/* 产品矩阵 */
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.product{border:1px solid var(--line);border-radius:10px;padding:32px 30px 28px;background:#fff;transition:.25s;display:flex;flex-direction:column}
.product:hover{border-color:#BFD2F2;box-shadow:0 16px 40px rgba(20,45,100,.08);transform:translateY(-3px)}
.product .ic{width:44px;height:44px;border-radius:8px;background:var(--blue-soft);display:flex;align-items:center;justify-content:center;color:var(--blue);font-family:var(--mono);font-size:15px;font-weight:700}
.product h3{font-size:19px;font-weight:800;margin:20px 0 8px;color:var(--ink)}
.product p{color:var(--muted);font-size:13.5px;line-height:1.95;flex:1}
.product .tags{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 22px}
.product .tags span{font-size:11.5px;color:var(--ink-2);background:var(--bg-2);border:1px solid var(--line);padding:4px 10px;border-radius:20px}
.product .more{font-size:13.5px;color:var(--blue);font-weight:600;display:inline-flex;align-items:center;gap:8px}
.product:hover .more .arw{transform:translateX(4px)}
.product .more .arw{transition:transform .2s}

/* 解决方案 */
.solutions{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sol-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.sol{background:#fff;border:1px solid var(--line);border-radius:10px;padding:30px 32px;display:flex;gap:20px;align-items:flex-start;transition:.25s}
.sol:hover{border-color:#BFD2F2;box-shadow:0 14px 36px rgba(20,45,100,.07)}
.sol .n{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--muted-2);padding-top:4px;white-space:nowrap}
.sol h3{font-size:17.5px;font-weight:800;margin-bottom:8px}
.sol p{color:var(--muted);font-size:13.5px;line-height:1.9}
.sol .tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.sol .tags span{font-size:11.5px;color:var(--blue);background:var(--blue-soft);padding:3px 9px;border-radius:4px}

/* 优势 */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.why{border-top:2px solid var(--blue);padding:24px 4px 0}
.why b{display:block;font-size:16.5px;font-weight:800;margin-bottom:10px}
.why p{color:var(--muted);font-size:13.5px;line-height:1.9}

/* 深色承诺带 */
.commit{background:linear-gradient(120deg,#081426,#0E1F3D 55%,#13315F);color:#E6EEFB;position:relative;overflow:hidden}
.commit::before{content:"";position:absolute;inset:0;background-image:
  radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,.5) 50%, transparent 51%),
  radial-gradient(1.4px 1.4px at 62% 22%, rgba(143,196,255,.7) 50%, transparent 51%),
  radial-gradient(1px 1px at 84% 62%, rgba(255,255,255,.4) 50%, transparent 51%),
  radial-gradient(1.2px 1.2px at 40% 78%, rgba(233,185,92,.6) 50%, transparent 51%);opacity:.7}
.commit .wrap{position:relative;display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.commit h2{font-size:clamp(26px,3vw,38px);font-weight:900;line-height:1.3;color:#fff}
.commit p{color:#A9BBD8;margin-top:16px;font-size:14.5px;line-height:2}
.commit .items{display:grid;grid-template-columns:1fr 1fr;gap:24px 32px}
.commit .item{border-left:1px solid rgba(143,196,255,.3);padding-left:18px}
.commit .item b{display:block;color:#fff;font-size:15px;margin-bottom:6px}
.commit .item span{color:#9FB3D3;font-size:13px;line-height:1.8}
.commit .kicker{color:#8FC4FF}
.commit .kicker::before{background:#8FC4FF}

/* 服务流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.flow .step{padding:30px 28px;border-right:1px solid var(--line);background:#fff;position:relative}
.flow .step:last-child{border-right:0}
.flow .step .n{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--blue)}
.flow .step h3{font-size:16px;font-weight:800;margin:14px 0 8px}
.flow .step p{color:var(--muted);font-size:13px;line-height:1.85}
.flow .step::after{content:"\2192";position:absolute;right:-9px;top:50%;transform:translateY(-50%);color:var(--line-2);font-size:14px;background:#fff;padding:2px}
.flow .step:last-child::after{display:none}

/* ---------- 产品详情（左右交替） ---------- */
.detail{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;padding:56px 0;border-bottom:1px solid var(--line)}
.detail:last-child{border-bottom:0}
.detail.rev .d-text{order:2}
.detail.rev .d-side{order:1}
.detail .no{font-family:var(--mono);font-size:11px;letter-spacing:.24em;color:var(--muted-2)}
.detail h2{font-size:clamp(24px,2.6vw,32px);font-weight:900;line-height:1.35;margin:14px 0 14px}
.detail .desc{color:var(--muted);font-size:14.5px;line-height:2}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.chips span{font-size:12px;color:var(--blue);background:var(--blue-soft);padding:5px 12px;border-radius:4px}
.bullets{list-style:none;margin-top:22px;display:grid;gap:12px}
.bullets li{position:relative;padding-left:22px;color:var(--ink-2);font-size:14px;line-height:1.85}
.bullets li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--blue)}
.bullets li b{font-weight:700;color:var(--ink)}
.spec{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.spec .cap{padding:14px 22px;border-bottom:1px solid var(--line);background:var(--bg-2);font-family:var(--mono);font-size:10px;letter-spacing:.24em;color:var(--muted-2)}
.spec .row{display:flex;justify-content:space-between;gap:18px;padding:14px 22px;border-bottom:1px solid var(--line);font-size:13.5px}
.spec .row:last-child{border-bottom:0}
.spec .k{color:var(--muted-2);font-size:12.5px;white-space:nowrap}
.spec .v{color:var(--ink);text-align:right}
.spec .v code{font-family:var(--mono);font-size:12px;color:var(--blue)}
.d-side .code-block{box-shadow:0 24px 60px rgba(15,35,80,.14)}
.code-block{background:var(--code-bg);border-radius:10px;overflow:hidden;border:1px solid #16233D}
.code-block .bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid rgba(142,170,220,.16)}
.code-block .bar i{width:9px;height:9px;border-radius:50%;background:#33415C}
.code-block .bar i:nth-child(1){background:#FF6B6B}
.code-block .bar i:nth-child(2){background:#FFC857}
.code-block .bar i:nth-child(3){background:#3FE0FF}
.code-block .bar .f{margin-left:8px;font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:#6F84A6}
.code-block pre{padding:20px 22px 24px;font-family:var(--mono);font-size:12.5px;line-height:1.95;color:var(--code-fg);overflow:auto}

/* ---------- 证据 / 统计（浅色） ---------- */
.proof{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.proof h2{font-size:clamp(26px,3vw,36px);font-weight:900;line-height:1.35;margin:14px 0 16px}
.proof .desc{color:var(--muted);font-size:14.5px;line-height:2}
.stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-top:26px}
.stat{background:#fff;padding:22px 24px}
.stat b{display:block;font-family:var(--mono);font-size:22px;font-weight:600;color:var(--blue)}
.stat span{display:block;margin-top:4px;font-size:11.5px;color:var(--muted-2);letter-spacing:.04em}
.terminal{background:var(--code-bg);border-radius:10px;overflow:hidden;border:1px solid #16233D;box-shadow:0 30px 70px rgba(10,22,50,.25)}
.terminal .bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid rgba(142,170,220,.16)}
.terminal .bar i{width:9px;height:9px;border-radius:50%;background:#33415C;display:block}
.terminal .bar i:nth-child(1){background:#FF6B6B}
.terminal .bar i:nth-child(2){background:#FFC857}
.terminal .bar i:nth-child(3){background:#3FE0FF}
.terminal .bar .t{margin-left:8px;font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:#6F84A6}
.terminal pre{padding:22px 24px 26px;font-family:var(--mono);font-size:12.5px;line-height:2;color:#9FB3CC;overflow:auto}
.terminal .p{color:#8FC4FF}
.terminal .ok{color:#57E6A5}
.terminal .dim{color:#4A5A73}
.terminal .warn{color:#E9B95C}

/* ---------- 版本历程 ---------- */
.timeline{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.tl-row{display:grid;grid-template-columns:150px 1fr 180px;gap:24px;padding:20px 24px;border-bottom:1px solid var(--line);align-items:baseline}
.tl-row:last-child{border-bottom:0}
.tl-row:hover{background:var(--bg-2)}
.tl-row .v{font-family:var(--mono);font-size:14px;color:var(--ink);letter-spacing:.02em}
.tl-row .d{color:var(--muted);font-size:13.5px;line-height:1.8}
.tl-row .s{font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;color:var(--muted-2);text-align:right}
.tl-row .s.ok{color:#1E9E6A}
.tl-row .s.cur{color:var(--gold)}

/* ---------- 能力边界 ---------- */
.nonclaims{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.nc{background:#fff;padding:26px 28px}
.nc .fi{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--gold)}
.nc h3{font-size:15.5px;font-weight:800;margin:10px 0 6px}
.nc p{color:var(--muted);font-size:13px;line-height:1.9}

/* ---------- 关于 / 联系 ---------- */
.about{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
.about h2{font-size:clamp(28px,3vw,38px);font-weight:900;line-height:1.32;margin:16px 0 20px}
.about p{color:var(--muted);font-size:14.5px;line-height:2.05;margin-bottom:16px}
.about p b{color:var(--ink);font-weight:600}
.info{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.info .cap{padding:14px 24px;border-bottom:1px solid var(--line);background:var(--bg-2);color:var(--muted-2);font-family:var(--mono);font-size:10px;letter-spacing:.24em}
.info .row{display:flex;justify-content:space-between;gap:20px;padding:15px 24px;border-bottom:1px solid var(--line)}
.info .row:last-child{border-bottom:0}
.info .k{color:var(--muted-2);font-size:12px;white-space:nowrap;padding-top:2px}
.info .v{font-size:13.5px;text-align:right;color:var(--ink);line-height:1.8}
.info .v a{color:var(--blue)}
.info .v a:hover{text-decoration:underline}

.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.contact-card{border:1px solid var(--line);border-radius:10px;background:#fff;padding:32px 30px;transition:.25s}
.contact-card:hover{border-color:var(--line-2);box-shadow:0 14px 36px rgba(20,45,100,.07)}
.contact-card .ic{font-family:var(--mono);font-size:10.5px;letter-spacing:.24em;color:var(--blue)}
.contact-card h3{font-size:18px;font-weight:800;margin:12px 0 8px}
.contact-card p{color:var(--muted);font-size:13.5px;line-height:1.9}
.contact-card a.big{display:inline-block;margin-top:16px;font-size:16.5px;font-weight:600;color:var(--ink)}
.contact-card a.big:hover{color:var(--blue)}

/* ---------- CTA 带 ---------- */
.cta-band{background:linear-gradient(110deg,#0E2A66,#1B4DE4 55%,#2F6BFF);color:#fff;padding:64px 60px;border-radius:12px;text-align:center;
  box-shadow:0 30px 80px rgba(27,77,228,.24);position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.18),transparent 65%)}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);font-weight:900;letter-spacing:.01em;position:relative}
.cta-band p{color:#C9D8F8;margin:14px auto 28px;max-width:560px;font-size:14.5px;line-height:1.9;position:relative}
.cta-band .btn-primary{background:#fff;color:var(--blue);box-shadow:none}
.cta-band .btn-primary:hover{background:#EAF0FF}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.45);color:#fff;background:transparent}
.cta-band .btn-ghost:hover{border-color:#fff}
.cta-band .cta{justify-content:center;position:relative}

/* ---------- Footer ---------- */
footer{background:#0A1730;color:#B9C8E2;padding:56px 0 30px}
.f-top{display:flex;justify-content:space-between;gap:60px;padding-bottom:40px;border-bottom:1px solid rgba(143,196,255,.16)}
.f-brand{max-width:400px}
.f-brand .brand .cn{color:#fff}
.f-brand .brand .en{color:#7A8CA9}
.f-brand p{margin-top:16px;color:#8DA0BE;font-size:12.5px;line-height:1.9}
.f-brand .f-addr{margin-top:10px;color:#6F82A2;font-size:12px;line-height:1.8}
.f-cols{display:flex;gap:64px}
.f-col h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.22em;color:#7A8CA9;margin-bottom:16px;font-weight:400}
.f-col a{display:block;color:#B9C8E2;font-size:13px;margin-bottom:10px}
.f-col a:hover{color:#fff}
.f-bot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-top:22px;color:#7A8CA9;font-size:11.5px}
.f-bot a{color:#7A8CA9}.f-bot a:hover{color:#B9C8E2}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .hero-grid,.proof,.about{grid-template-columns:1fr}
  .hero-art{min-height:400px}
  .products,.why-grid{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:1fr 1fr}
  .flow .step:nth-child(2){border-right:0}
  .flow .step::after{display:none}
  .commit .wrap{grid-template-columns:1fr}
  .detail{grid-template-columns:1fr;gap:32px;padding:44px 0}
  .detail.rev .d-text{order:1}
  .detail.rev .d-side{order:2}
  .contact-grid{grid-template-columns:1fr}
  .tl-row{grid-template-columns:120px 1fr;gap:14px}
  .tl-row .s{grid-column:2;text-align:left}
  .nav-links{display:none}
  .nav-toggle{display:block}
  header.open .nav-links{display:flex;position:absolute;top:108px;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:8px 0;box-shadow:0 18px 40px rgba(15,35,80,.1)}
  header.open .nav-links a{padding:14px 24px;width:100%;border-bottom:0}
  .metrics .row{grid-template-columns:1fr 1fr}
  .metrics .cell:nth-child(2){border-right:0}
  .metrics .cell{border-bottom:1px solid var(--line)}
}
@media (max-width:720px){
  .wrap{width:calc(100% - 44px)}
  section{padding:64px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:34px}
  .products,.sol-grid,.why-grid,.flow,.commit .items,.nonclaims{grid-template-columns:1fr}
  .flow .step{border-right:0;border-bottom:1px solid var(--line)}
  .hero{padding:48px 0 60px}
  .hero .nums{gap:24px}
  .cta-band{padding:44px 24px}
  .f-top{flex-direction:column}
  .f-cols{gap:36px;flex-wrap:wrap}
  .page-hero{padding:48px 0 40px}
  .nav-tel{display:none}
  .detail{padding:36px 0}
}

/* 移动端公告条换行 */
@media (max-width:720px){
  .announce .wrap{height:auto;padding:9px 0;flex-direction:column;align-items:flex-start;gap:3px;line-height:1.55;font-size:11.5px}
  .announce .wrap a{font-size:11.5px}
}