/* ============================================================
   极客引擎官网 v2 · 超越版 · 纯浅白科技风
   设计系统 → 布局 → 组件 → 动画 → 响应式
   ============================================================ */

:root {
  /* 绿青色阶 */
  --g-50:#ecfdf5; --g-100:#d1fae5; --g-200:#a7f3d0; --g-300:#6ee7b7;
  --g-400:#34d399; --g-500:#10b981; --g-600:#059669; --g-700:#047857;
  --c-300:#67e8f9; --c-400:#22d3ee; --c-500:#06b6d4; --c-600:#0891b2;
  --grad: linear-gradient(120deg, #10b981, #06b6d4);
  --grad-soft: linear-gradient(120deg, rgba(16,185,129,.12), rgba(6,182,212,.12));

  /* 中性 */
  --ink:#0b1f2a; --ink-2:#3d5566; --ink-3:#6b8496;
  --bg:#f6faf9; --bg-2:#eef6f4; --card:#ffffff;
  --line:rgba(11,31,42,.09); --line-2:rgba(11,31,42,.06);

  /* 间距 8pt 节奏 */
  --s1:6px; --s2:12px; --s3:18px; --s4:26px; --s5:34px; --s6:44px; --s7:62px;
  --max:1200px; --r:16px; --r-sm:12px; --r-lg:24px;

  /* 阴影层级 */
  --sh-1:0 2px 8px rgba(11,31,42,.05);
  --sh-2:0 12px 32px rgba(11,31,42,.09);
  --sh-3:0 28px 70px rgba(11,31,42,.14);
  --sh-g:0 16px 44px rgba(16,185,129,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
}

* { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body {
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.65; overflow-x:hidden; -webkit-font-smoothing:antialiased;
}
img { max-width:100%; display:block; }
a { text-decoration:none; color:inherit; }
button { font-family:inherit; cursor:pointer; border:none; background:none; }

.section-inner { width:min(var(--max),calc(100% - 48px)); margin:0 auto; }
.eyebrow { display:inline-block; font-size:.74rem; font-weight:800; letter-spacing:.22em; color:var(--g-600); }

.section-heading { text-align:center; max-width:680px; margin:0 auto var(--s5); }
.section-heading .eyebrow { margin-bottom:var(--s2); }
.section-heading h2 { font-size:clamp(1.9rem,3.8vw,2.9rem); font-weight:900; line-height:1.16; letter-spacing:-.02em; }
.section-heading .sub { margin-top:var(--s2); color:var(--ink-2); font-size:1.05rem; }

.skip-link { position:absolute; left:-999px; top:0; z-index:999; background:var(--ink); color:#fff; padding:10px 16px; }
.skip-link:focus { left:0; }

/* ============ 导航 ============ */
.site-header { position:fixed; inset:0 0 auto 0; z-index:100; transition:background .4s var(--ease),box-shadow .4s,backdrop-filter .4s; }
.nav-shell { width:min(var(--max),calc(100% - 48px)); margin:0 auto; display:flex; align-items:center; justify-content:space-between; height:64px; transition:height .4s var(--ease); }
.site-header.scrolled { background:rgba(255,255,255,.82); backdrop-filter:blur(20px) saturate(1.4); box-shadow:0 1px 0 var(--line),var(--sh-1); }
.site-header.scrolled .nav-shell { height:56px; }
.brand { display:flex; align-items:center; gap:11px; font-weight:900; color:var(--ink); }
.brand-mark { display:grid; place-items:center; width:36px; height:36px; border-radius:10px; background:var(--grad); color:#fff; font-weight:900; font-size:1rem; box-shadow:var(--sh-g); }
.brand-name { font-size:1.18rem; letter-spacing:.02em; }
.nav-links { display:flex; align-items:center; gap:4px; }
.nav-links a,.nav-cta { position:relative; padding:9px 13px; border-radius:10px; font-size:.95rem; font-weight:600; color:var(--ink-2); transition:color .25s,background .25s; }
.nav-links a::after { content:""; position:absolute; left:13px; right:13px; bottom:5px; height:2px; background:var(--grad); border-radius:2px; transform:scaleX(0); transform-origin:left; transition:transform .3s var(--ease); }
.nav-links a:hover,.nav-links a.active { color:var(--ink); }
.nav-links a:hover::after,.nav-links a.active::after { transform:scaleX(1); }
.nav-cta { margin-left:8px; color:#fff; background:var(--grad); font-weight:800; box-shadow:var(--sh-g); }
.nav-cta:hover { filter:brightness(1.05); transform:translateY(-1px); }
.menu-button { display:none; flex-direction:column; gap:5px; padding:8px; }
.menu-button span { width:24px; height:2px; background:var(--ink); border-radius:2px; transition:.3s var(--ease); }
.menu-button[aria-expanded="true"] span:nth-child(1) { transform:translateY(7px) rotate(45deg); }
.menu-button[aria-expanded="true"] span:nth-child(2) { opacity:0; }
.menu-button[aria-expanded="true"] span:nth-child(3) { transform:translateY(-7px) rotate(-45deg); }

/* ============ HERO ============ */
.hero { position:relative; padding:86px 0 24px; overflow:hidden; }
.hero-bg { position:absolute; inset:0; z-index:0; overflow:hidden; }
.blob { position:absolute; border-radius:50%; filter:blur(90px); opacity:.5; }
.blob-1 { width:620px; height:620px; top:-200px; right:-140px; background:radial-gradient(circle,var(--g-200),transparent 70%); }
.blob-2 { width:520px; height:520px; top:180px; left:-160px; background:radial-gradient(circle,var(--c-300),transparent 70%); opacity:.4; }
.hero-grid { position:absolute; inset:0; background-image:linear-gradient(rgba(11,31,42,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(11,31,42,.04) 1px,transparent 1px); background-size:44px 44px; mask-image:radial-gradient(circle at 50% 30%,#000,transparent 72%); -webkit-mask-image:radial-gradient(circle at 50% 30%,#000,transparent 72%); }
.sand-flow { position:absolute; inset:0; opacity:.5; background:radial-gradient(2px 2px at 20% 30%,rgba(16,185,129,.4),transparent),radial-gradient(2px 2px at 60% 20%,rgba(6,182,212,.35),transparent),radial-gradient(1px 1px at 80% 50%,rgba(16,185,129,.4),transparent),radial-gradient(1px 1px at 35% 70%,rgba(6,182,212,.3),transparent),radial-gradient(2px 2px at 90% 30%,rgba(16,185,129,.3),transparent); background-size:600px 600px; animation:sandDrift 40s linear infinite; }
@keyframes sandDrift { to { background-position:600px 300px; } }

.hero-inner { position:relative; z-index:2; width:min(var(--max),calc(100% - 48px)); margin:0 auto; display:grid; grid-template-columns:0.86fr 1.14fr; gap:var(--s4); align-items:center; }
.kicker { display:inline-flex; align-items:center; gap:8px; font-size:.86rem; font-weight:700; color:var(--ink-2); padding:8px 15px; border:1px solid var(--line); border-radius:999px; background:rgba(255,255,255,.7); box-shadow:var(--sh-1); margin-bottom:var(--s3); }
.kicker .dot { width:8px; height:8px; border-radius:50%; background:var(--g-500); box-shadow:0 0 10px var(--g-400); animation:blink 2s infinite; }
@keyframes blink { 0%,100%{opacity:1;} 50%{opacity:.4;} }
.hero h1 { font-size:clamp(2.6rem,5.6vw,4.3rem); font-weight:900; line-height:1.06; letter-spacing:-.03em; }
.hero-slogan { margin-top:var(--s2); font-size:clamp(1.3rem,2.6vw,2rem); font-weight:800; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.hero-slogan i { font-style:normal; color:var(--g-300); -webkit-text-fill-color:var(--g-300); margin:0 6px; }
.hero-lead { margin:var(--s3) 0 var(--s4); max-width:520px; color:var(--ink-2); font-size:1.06rem; }
.hero-actions { display:flex; gap:14px; flex-wrap:wrap; }
.btn { display:inline-flex; align-items:center; gap:8px; padding:15px 28px; border-radius:13px; font-weight:800; font-size:1rem; transition:transform .25s var(--ease),box-shadow .25s,filter .25s; }
.btn-primary { background:var(--grad); color:#fff; box-shadow:var(--sh-g); }
.btn-primary:hover { transform:translateY(-3px); box-shadow:0 22px 54px rgba(16,185,129,.34); }
.btn-primary .arrow { transition:transform .25s var(--ease); }
.btn-primary:hover .arrow { transform:translateX(4px); }
.btn-ghost { border:1px solid var(--line); color:var(--ink); background:rgba(255,255,255,.7); }
.btn-ghost:hover { border-color:var(--g-400); color:var(--g-600); transform:translateY(-3px); box-shadow:var(--sh-1); }
.hero-trust { display:flex; gap:18px; margin-top:var(--s4); flex-wrap:wrap; }
.hero-trust span { font-size:.98rem; color:var(--ink-2); }
.hero-trust b { color:var(--g-600); font-weight:800; margin-right:4px; }

/* 头部沙画 */
.hero-sand { position:relative; justify-self:center; width:100%; max-width:600px; aspect-ratio:11/9; }
/* 与 GPT 原版一致：canvas 铺满容器，边界靠采样本身自然稀疏，不用外散/羽化。 */
.sand-canvas { position:absolute; inset:0; width:100%; height:100%; z-index:2; pointer-events:none; }
.sand-fallback { position:absolute; inset:0; z-index:1; background:url("./assets/sand-scene-team.jpg") center 12%/contain no-repeat; opacity:.08; filter:sepia(.5) saturate(.55) hue-rotate(90deg); transition:opacity .6s; pointer-events:none; }
html.sand-canvas-ready .sand-fallback { opacity:0; }
.sand-caption { position:absolute; left:50%; bottom:6px; z-index:3; transform:translateX(-50%); display:inline-flex; align-items:center; gap:8px; padding:9px 18px; border-radius:999px; background:rgba(255,255,255,.82); backdrop-filter:blur(8px); border:1px solid var(--line); box-shadow:var(--sh-1); white-space:nowrap; }
.sand-caption span { font-size:.9rem; font-weight:800; color:var(--ink); }
.sand-caption i { font-style:normal; color:var(--c-500); font-weight:900; }

/* 活的经营驾驶舱（下移独立区） */
.dashboard-section { padding:0 0 var(--s6); }
/* 驾驶舱适配电脑：放宽到容器宽度、内部横向大气布局 */
.dash-panel { width:min(1040px,100%); max-width:100%; margin:0 auto; }
.dash-panel .panel-body { grid-template-columns:minmax(0,1.65fr) minmax(260px,.75fr); grid-template-areas:"m f" "c f"; align-items:stretch; gap:var(--s3); }
.dash-panel .panel-metrics { grid-area:m; }
.dash-panel .panel-chart { grid-area:c; display:flex; flex-direction:column; }
.dash-panel .panel-chart .bars { flex:1; }
.dash-panel .panel-flow { grid-area:f; flex-direction:column; align-items:stretch; gap:10px; justify-content:center; padding:16px; border-radius:var(--r-sm); background:var(--bg-2); border:1px solid var(--line-2); }
.dash-panel .panel-flow span { padding:12px 8px; font-size:.9rem; }
.dash-panel .panel-flow b { transform:rotate(90deg); align-self:center; }
.dash-panel .panel-metrics { grid-template-columns:repeat(3,1fr); }
.dash-panel .pm strong { font-size:2.4rem; }
.dash-panel .bars { height:150px; }
.hero-panel { justify-self:center; width:100%; max-width:520px; border-radius:var(--r-lg); background:var(--card); border:1px solid var(--line); box-shadow:var(--sh-3); overflow:hidden; transition:transform .3s var(--ease),box-shadow .3s; }
.hero-panel.dash-panel { max-width:1040px; }
.panel-chrome { display:flex; align-items:center; gap:8px; padding:14px 18px; background:linear-gradient(180deg,#f3f9f8,#fff); border-bottom:1px solid var(--line-2); }
.cdot { width:10px; height:10px; border-radius:50%; background:#ff5f56; }
.cdot:nth-child(2){background:#ffbd2e;} .cdot:nth-child(3){background:#27c93f;}
.panel-url { flex:1; margin-left:8px; font-size:.78rem; color:var(--ink-3); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.panel-live { display:inline-flex; align-items:center; gap:6px; padding:5px 11px; border-radius:999px; background:var(--g-50); color:var(--g-600); font-size:.74rem; font-weight:800; }
.panel-live i { width:7px; height:7px; border-radius:50%; background:var(--g-500); box-shadow:0 0 8px var(--g-400); animation:blink 1.5s infinite; }
.panel-body { padding:var(--s3); display:grid; gap:var(--s3); }
.panel-metrics { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; }
.pm { padding:14px; border-radius:var(--r-sm); background:var(--bg-2); border:1px solid var(--line-2); }
.pm span { font-size:.76rem; color:var(--ink-3); }
.pm strong { display:block; font-size:1.7rem; font-weight:900; margin:2px 0; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.pm em { font-style:normal; font-size:.72rem; color:var(--ink-3); }
.panel-chart { padding:16px; border-radius:var(--r-sm); background:var(--bg-2); border:1px solid var(--line-2); }
.pc-head { display:flex; justify-content:space-between; align-items:center; margin-bottom:14px; font-size:.84rem; font-weight:700; }
.pc-head em { font-style:normal; color:var(--ink-3); font-weight:500; }
.bars { display:flex; align-items:flex-end; gap:9px; height:96px; }
.bars i { flex:1; height:var(--h); border-radius:5px 5px 0 0; background:var(--grad); transform:scaleY(0); transform-origin:bottom; transition:transform .8s var(--ease); }
.bars.in i { transform:scaleY(1); }
.bars.in i:nth-child(1){transition-delay:.05s;} .bars.in i:nth-child(2){transition-delay:.12s;} .bars.in i:nth-child(3){transition-delay:.19s;} .bars.in i:nth-child(4){transition-delay:.26s;} .bars.in i:nth-child(5){transition-delay:.33s;} .bars.in i:nth-child(6){transition-delay:.4s;} .bars.in i:nth-child(7){transition-delay:.47s;}
.panel-flow { display:flex; align-items:center; justify-content:space-between; gap:4px; }
.panel-flow span { flex:1; text-align:center; padding:8px 4px; border-radius:8px; background:var(--g-50); color:var(--g-700); font-size:.8rem; font-weight:700; }
.panel-flow b { color:var(--c-500); font-weight:900; }

/* ============ 一体化流程条 ============ */
.pipeline { padding:0 0 var(--s6); margin-top:calc(-1 * var(--s5)); position:relative; z-index:3; }
.pipe-track { display:flex; align-items:stretch; gap:8px; padding:var(--s3); border-radius:var(--r-lg); background:var(--card); border:1px solid var(--line); box-shadow:var(--sh-2); }
.pipe-node { flex:1; padding:16px 14px; border-radius:var(--r-sm); background:var(--bg-2); text-align:center; transition:transform .3s var(--ease),box-shadow .3s; }
.pipe-node:hover { transform:translateY(-4px); background:var(--card); box-shadow:var(--sh-2); }
.pn-i { display:inline-block; font-size:.72rem; font-weight:900; color:#fff; background:var(--grad); padding:2px 9px; border-radius:999px; margin-bottom:8px; }
.pipe-node b { display:block; font-size:1rem; color:var(--ink); }
.pipe-node em { font-style:normal; font-size:.78rem; color:var(--ink-3); }
.pipe-arrow { display:flex; align-items:center; color:var(--c-400); font-size:1.3rem; font-weight:900; }

/* ============ 核心价值 ============ */
.values { padding:0 0 var(--s6); }
.value-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:var(--s3); }
.value-card { padding:var(--s4) var(--s4); border-radius:var(--r); background:var(--card); border:1px solid var(--line); box-shadow:var(--sh-1); transition:transform .3s var(--ease),box-shadow .3s,border-color .3s; }
.value-card:hover { transform:translateY(-6px); border-color:var(--g-300); box-shadow:var(--sh-2); }
.v-icon { width:54px; height:54px; border-radius:15px; margin-bottom:var(--s2); background:var(--grad-soft); border:1px solid var(--line); position:relative; }
.v-icon::after { content:""; position:absolute; inset:15px; border:2.5px solid var(--g-500); }
.i-sales::after { border-radius:7px; }
.i-manage::after { border-radius:2px; }
.i-boss::after { border-radius:50%; }
.value-card h3 { font-size:1.3rem; font-weight:800; margin-bottom:10px; }
.value-card p { color:var(--ink-2); font-size:.98rem; }
.value-points { display:flex; flex-wrap:wrap; gap:8px; margin-top:16px; }
.value-points span { padding:6px 11px; border-radius:999px; background:var(--grad-soft); border:1px solid rgba(16,185,129,.16); color:var(--g-700); font-size:.78rem; font-weight:800; }

/* ============ Bento ============ */
.advantage { padding:var(--s6) 0; background:linear-gradient(180deg,var(--bg),var(--bg-2)); }
.bento { display:grid; grid-template-columns:repeat(3,1fr); grid-auto-rows:minmax(180px,auto); gap:var(--s3); }
.b-card { position:relative; overflow:hidden; border-radius:var(--r); padding:var(--s3); background:var(--card); border:1px solid var(--line); box-shadow:var(--sh-1); display:flex; flex-direction:column; justify-content:space-between; gap:var(--s2); transition:transform .3s var(--ease),box-shadow .3s; }
.b-card:hover { box-shadow:var(--sh-2); }
.b-wide { grid-column:span 2; }
.b-tall { grid-row:span 2; }
.b-card .tag { font-size:.78rem; font-weight:800; color:var(--g-600); letter-spacing:.04em; margin-bottom:6px; }
.b-card h3 { font-size:1.16rem; font-weight:800; line-height:1.4; }
.b-card .desc { font-size:.9rem; color:var(--ink-2); margin-top:6px; }
.b-copy { position:relative; z-index:2; }
.b-mini { display:flex; flex-wrap:wrap; gap:7px; margin-top:12px; }
.b-mini span { padding:5px 10px; border-radius:999px; background:var(--grad-soft); color:var(--g-700); border:1px solid rgba(16,185,129,.14); font-size:.74rem; font-weight:800; }
.b-mini-metrics { display:grid; grid-template-columns:1fr; gap:8px; margin-top:14px; }
.b-mini-metrics span { display:flex; align-items:center; justify-content:space-between; gap:10px; padding:9px 12px; border-radius:10px; background:rgba(16,185,129,.08); border:1px solid rgba(16,185,129,.16); }
.b-mini-metrics b { color:var(--g-700); font-size:.9rem; }
.b-mini-metrics em { font-style:normal; color:var(--ink-3); font-size:.76rem; }
.b-visual { position:relative; border-radius:var(--r-sm); background:var(--grad-soft); overflow:hidden; }
.chain-map { min-height:116px; display:grid; grid-template-columns:1fr auto 1fr auto 1fr; gap:10px; align-items:center; padding:14px; }
.chain-map div { min-height:76px; padding:12px; border-radius:12px; background:rgba(255,255,255,.74); border:1px solid rgba(16,185,129,.14); box-shadow:0 8px 22px rgba(11,31,42,.04); }
.chain-map b { display:block; color:var(--g-700); font-size:.9rem; margin-bottom:4px; }
.chain-map span { display:block; color:var(--ink-2); font-size:.76rem; line-height:1.55; }
.chain-map i { width:24px; height:2px; border-radius:2px; background:var(--grad); position:relative; }
.chain-map i::after { content:""; position:absolute; right:-2px; top:50%; width:7px; height:7px; border-top:2px solid var(--c-500); border-right:2px solid var(--c-500); transform:translateY(-50%) rotate(45deg); }
.b-result { display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin-top:14px; }
.b-result span { padding:10px; border-radius:11px; background:var(--bg); border:1px solid var(--line-2); }
.b-result b { display:block; color:var(--g-700); font-size:.82rem; margin-bottom:3px; }
.b-result em { display:block; font-style:normal; color:var(--ink-3); font-size:.74rem; line-height:1.45; }
.sales-panel,.dealer-panel,.service-panel,.boss-panel,.support-panel { min-height:118px; padding:14px; display:grid; gap:8px; align-content:center; }
.sales-panel strong { padding:9px 12px 0; color:var(--g-700); font-size:.86rem; }
.sales-panel span { padding:0 12px 9px; border-bottom:1px dashed rgba(16,185,129,.22); color:var(--ink-2); font-size:.78rem; }
.sales-panel span:last-child { border-bottom:0; }
.dealer-panel span,.service-panel span { padding:9px 12px; border-radius:10px; background:rgba(255,255,255,.78); border:1px solid rgba(16,185,129,.14); color:var(--ink-2); font-size:.82rem; font-weight:700; }
.boss-panel { grid-template-columns:repeat(2,1fr); align-content:stretch; }
.boss-panel div { padding:10px; border-radius:11px; background:rgba(255,255,255,.78); border:1px solid rgba(16,185,129,.14); }
.boss-panel span { display:block; color:var(--ink-3); font-size:.76rem; margin-bottom:4px; }
.boss-panel b { color:var(--g-700); font-size:1rem; }
.support-panel span { display:grid; grid-template-columns:auto 1fr; column-gap:8px; row-gap:2px; align-items:center; padding:8px 10px; border-radius:10px; background:rgba(255,255,255,.78); border:1px solid rgba(16,185,129,.14); }
.support-panel span::before { content:""; grid-row:1 / span 2; width:8px; height:8px; border-radius:50%; background:var(--grad); box-shadow:0 0 0 4px rgba(16,185,129,.08); }
.support-panel b { color:var(--g-700); font-size:.82rem; }
.support-panel em { font-style:normal; color:var(--ink-3); font-size:.72rem; }
.loop { min-height:104px; display:grid; align-content:center; gap:10px; padding:12px 0; }
.ticker { display:flex; gap:10px; width:max-content; animation:tk 22s linear infinite; }
.ticker.rev { animation-direction:reverse; animation-duration:26s; }
.ticker span { flex:none; padding:7px 14px; border-radius:999px; background:var(--card); border:1px solid var(--line); font-size:.82rem; font-weight:700; }
@keyframes tk { to { transform:translateX(-50%); } }
.ring { min-height:118px; display:grid; place-items:center; }
.ring .r1,.ring .r2 { position:absolute; border-radius:50%; border:3px solid transparent; }
.ring .r1 { width:82px; height:82px; border-top-color:var(--g-500); border-right-color:var(--c-400); animation:spin 3s linear infinite; }
.ring .r2 { width:52px; height:52px; border-top-color:var(--c-400); animation:spin 2s linear infinite reverse; }
.ring .rd { width:12px; height:12px; border-radius:50%; background:var(--grad); box-shadow:var(--sh-g); }
@keyframes spin { to { transform:rotate(360deg); } }
.grid4 { min-height:118px; display:grid; grid-template-columns:1fr 1fr; gap:8px; padding:14px; place-content:center; }
.grid4 span { padding:10px; border-radius:9px; background:var(--card); border:1px solid var(--line); text-align:center; font-size:.85rem; font-weight:700; }
.steps { flex:1; min-height:200px; padding:14px; display:grid; gap:8px; align-content:stretch; }
.steps > div { display:flex; gap:10px; align-items:center; padding:9px 11px; border-radius:9px; background:var(--card); border:1px solid var(--line); }
.steps b { width:26px; height:26px; flex:none; border-radius:8px; display:grid; place-items:center; background:var(--grad); color:#fff; font-size:.76rem; font-weight:900; }
.steps strong { display:block; font-size:.88rem; }
.steps em { font-style:normal; font-size:.74rem; color:var(--ink-3); }
.pulse { min-height:118px; display:flex; align-items:center; justify-content:center; gap:10px; }
.pulse i { width:14px; height:14px; border-radius:50%; background:var(--grad); animation:ps 1.4s ease-in-out infinite; }
.pulse i:nth-child(2){animation-delay:.2s;} .pulse i:nth-child(3){animation-delay:.4s;}
@keyframes ps { 0%,100%{transform:scale(.6);opacity:.4;} 50%{transform:scale(1.2);opacity:1;} }
.stack { min-height:118px; display:grid; gap:6px; padding:14px; align-content:center; }
.stack span { padding:8px 12px; border-radius:8px; background:var(--card); border:1px solid var(--line); font-size:.82rem; font-weight:700; animation:sk 5s ease-in-out infinite; }
.stack span:nth-child(2){animation-delay:.4s;} .stack span:nth-child(3){animation-delay:.8s;} .stack span:nth-child(4){animation-delay:1.2s;}
@keyframes sk { 0%,100%{transform:translateX(0);} 50%{transform:translateX(10px);} }

/* ============ 落地路径 ============ */
.solution { padding:var(--s6) 0; }
.flow { display:grid; grid-template-columns:repeat(4,1fr); gap:var(--s2); }
.f-step { position:relative; padding:var(--s3) 22px; border-radius:var(--r); background:var(--card); border:1px solid var(--line); box-shadow:var(--sh-1); overflow:hidden; transition:transform .3s var(--ease),box-shadow .3s; }
.f-step:hover { transform:translateY(-6px); box-shadow:var(--sh-2); }
.f-step::before { content:""; position:absolute; inset:0 0 auto 0; height:3px; background:var(--grad); transform:scaleX(0); transform-origin:left; transition:transform .4s var(--ease); }
.f-step:hover::before { transform:scaleX(1); }
.f-no { display:inline-block; font-size:1.5rem; font-weight:900; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; margin-bottom:10px; }
.f-step h3 { font-size:1.14rem; font-weight:800; margin-bottom:8px; }
.f-step p { font-size:.9rem; color:var(--ink-2); }
.f-hi { background:var(--grad); box-shadow:var(--sh-g); }
.f-hi::before { display:none; }
.f-hi .f-no { -webkit-text-fill-color:#fff; color:#fff; }
.f-hi h3 { color:#fff; }
.f-hi p { color:rgba(255,255,255,.9); }

/* ============ 下载中心 ============ */
.downloads { padding:var(--s3) 0 var(--s5); background:linear-gradient(180deg,var(--bg-2),var(--bg)); }
.download-shell { border-radius:var(--r-lg); background:var(--card); border:1px solid var(--line); box-shadow:var(--sh-3); overflow:hidden; }
/* 下载 Tab 头部（照搬 GPT 结构：6等分格 + 竖分隔 + 渐变下划线 + CSS平台图标） */
.download-tabs { display:grid; grid-template-columns:repeat(6,1fr); background:rgba(255,255,255,.52); border-bottom:1px solid var(--line-2); }
.download-tab { position:relative; min-height:62px; display:inline-flex; align-items:center; justify-content:center; gap:8px; border:0; border-right:1px solid var(--line-2); color:var(--ink-2); background:transparent; font-size:1rem; font-weight:900; cursor:pointer; transition:color .16s ease,background .16s ease; }
.download-tab:last-child { border-right:0; }
.download-tab::after { content:""; position:absolute; left:0; right:0; bottom:0; height:3px; background:var(--grad); transform:scaleX(0); transition:transform .18s var(--ease); }
.download-tab:hover, .download-tab:focus-visible, .download-tab.is-active, .download-tab[aria-selected="true"] { color:var(--g-700); background:var(--g-50); outline:none; }
.download-tab.is-active::after, .download-tab[aria-selected="true"]::after { transform:scaleX(1); }
.download-tab:hover .platform-icon, .download-tab[aria-selected="true"] .platform-icon { transform:translateY(-1px) scale(1.05); }

.platform-icon { position:relative; width:24px; height:24px; display:inline-flex; align-items:center; justify-content:center; color:var(--g-500); font-weight:950; transition:transform .16s ease; }
.windows-icon::before { content:""; width:6px; height:6px; background:currentColor; box-shadow:8px 0 0 currentColor,0 8px 0 currentColor,8px 8px 0 currentColor; }
.ios-icon { width:auto; min-width:28px; font-size:.82rem; }
.android-icon::before { content:""; position:absolute; left:5px; top:6px; width:14px; height:9px; border-radius:9px 9px 2px 2px; background:currentColor; }
.android-icon i::before, .android-icon i::after { content:""; position:absolute; top:-7px; width:1px; height:7px; border-radius:999px; background:currentColor; transform-origin:bottom; }
.android-icon i::before { left:-3px; transform:rotate(-28deg); }
.android-icon i::after { right:-9px; transform:rotate(28deg); }
.android-icon::after { content:""; position:absolute; left:4px; top:15px; width:16px; height:7px; border-radius:2px 2px 4px 4px; background:currentColor; }
.android-icon i { position:absolute; left:8px; top:9px; width:2px; height:2px; border-radius:50%; background:#fff; box-shadow:6px 0 0 #fff; }
.tv-icon::before { content:""; width:18px; height:12px; border:2px solid currentColor; border-radius:3px; }
.tv-icon::after { content:""; position:absolute; left:50%; bottom:2px; width:12px; height:2px; background:currentColor; transform:translateX(-50%); }
.scanner-icon::before { content:""; position:absolute; left:6px; top:3px; width:12px; height:15px; border:2px solid currentColor; border-radius:4px; }
.scanner-icon::after { content:""; position:absolute; left:9px; bottom:2px; width:7px; height:7px; border-radius:0 0 4px 4px; background:currentColor; }
.dl-panel { display:none; grid-template-columns:1.05fr .95fr; gap:var(--s5); padding:var(--s5); align-items:center; }
.dl-panel.is-active { display:grid; animation:fadeUp .5s var(--ease); }
.dl-copy .eyebrow { margin-bottom:10px; }
.dl-copy h3 { font-size:1.7rem; font-weight:900; margin-bottom:12px; }
.dl-copy > p { color:var(--ink-2); margin-bottom:18px; }
.dl-points { display:flex; flex-wrap:wrap; justify-content:center; gap:8px; margin-bottom:22px; }
.dl-points span { padding:7px 14px; border-radius:999px; background:var(--grad-soft); border:1px solid var(--line); font-size:.84rem; font-weight:700; color:var(--g-600); }
.dl-actions { display:flex; flex-wrap:wrap; justify-content:center; gap:12px; margin-bottom:14px; }
.dl-primary { padding:13px 24px; border-radius:12px; background:var(--grad); color:#fff; font-weight:800; box-shadow:var(--sh-g); transition:.25s; }
.dl-primary:hover { transform:translateY(-3px); box-shadow:0 20px 48px rgba(16,185,129,.34); }
.dl-secondary { padding:13px 22px; border-radius:12px; border:1px solid var(--line); background:var(--bg); font-weight:700; transition:.25s; }
.dl-secondary:hover { border-color:var(--g-400); color:var(--g-600); }
.dl-ver { max-width:420px; font-size:.84rem; color:var(--ink-3); margin:6px auto 0; text-align:center; }
.qr-card { display:flex; flex-direction:column; align-items:center; gap:8px; padding:14px; border-radius:14px; border:1px solid var(--line); background:var(--bg); width:fit-content; margin:0 auto 12px; text-align:center; transition:.25s; }
.qr-card:hover { border-color:var(--g-400); transform:translateY(-2px); box-shadow:var(--sh-1); }
.qr-card img { width:120px; height:120px; border-radius:8px; }
.qr-card span { font-size:.82rem; font-weight:700; color:var(--ink-2); }

.dl-preview { display:grid; place-items:center; }
.login-mock { display:grid; grid-template-columns:1fr 1fr; width:100%; max-width:460px; border-radius:var(--r); overflow:hidden; box-shadow:var(--sh-2); border:1px solid var(--line); }
.login-brand { padding:24px 20px; background:linear-gradient(150deg,var(--g-50),var(--g-100)); display:grid; align-content:center; gap:10px; }
.login-brand span { font-size:.72rem; letter-spacing:.15em; color:var(--g-600); font-weight:800; }
.login-brand strong { font-size:1.02rem; line-height:1.4; }
.login-brand p { font-size:.82rem; color:var(--ink-2); }
.lb-ticks { display:flex; gap:6px; margin-top:6px; }
.lb-ticks i { width:22px; height:4px; border-radius:2px; background:var(--grad); opacity:.5; animation:tg 2s ease-in-out infinite; }
.lb-ticks i:nth-child(2){animation-delay:.3s;} .lb-ticks i:nth-child(3){animation-delay:.6s;}
@keyframes tg { 0%,100%{opacity:.35;} 50%{opacity:1;} }
.login-card { padding:22px 20px; background:var(--card); display:grid; gap:10px; align-content:center; }
.login-card h4 { font-size:1.06rem; font-weight:800; }
.login-card > p { font-size:.8rem; color:var(--ink-3); }
.li { padding:10px 12px; border-radius:9px; border:1px solid var(--line); background:var(--bg); font-size:.82rem; color:var(--ink-3); }
.lrow { display:flex; justify-content:space-between; font-size:.76rem; color:var(--ink-3); }
.lbtn { padding:11px; border-radius:9px; background:var(--grad); color:#fff; text-align:center; font-weight:800; font-size:.9rem; }
.wbtn { padding:11px; border-radius:9px; background:var(--g-600); color:#fff; text-align:center; font-weight:700; font-size:.86rem; }
.ldots { display:flex; justify-content:center; gap:6px; margin-top:4px; }
.ldots i { width:6px; height:6px; border-radius:50%; background:var(--g-300); }
.ldots i:first-child { background:var(--g-500); }
.phone-mock { width:212px; padding:12px; border-radius:32px; background:linear-gradient(160deg,#1a2530,#0b1720); box-shadow:var(--sh-3); }
.notch { width:60px; height:18px; border-radius:0 0 12px 12px; background:#0b1720; margin:0 auto 8px; }
.pscreen { border-radius:22px; overflow:hidden; background:var(--card); }
.mcard { padding:22px 18px; display:grid; gap:9px; }
.mcard h4 { font-size:1.02rem; font-weight:800; }
.mcard > p { font-size:.76rem; color:var(--ink-3); }
.tv-mock { width:100%; max-width:440px; }
.tv-screen { border-radius:12px; padding:18px; background:linear-gradient(155deg,#0f1b26,#0a141d); border:3px solid #1b2833; color:#eaf6f3; min-height:220px; }
.tvh { display:flex; justify-content:space-between; align-items:center; margin-bottom:16px; }
.tvh span { font-weight:800; }
.tvh em { font-style:normal; font-size:.78rem; color:var(--g-300); }
.tv-hero { display:flex; gap:14px; align-items:center; margin-bottom:14px; }
.sofa { display:flex; gap:4px; }
.sofa i { width:20px; height:34px; border-radius:5px; background:var(--grad); opacity:.85; }
.tv-hero strong { display:block; font-size:1rem; }
.tv-hero p { font-size:.78rem; color:rgba(234,246,243,.6); }
.tvtags { display:flex; gap:8px; flex-wrap:wrap; }
.tvtags span { padding:6px 12px; border-radius:999px; background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.12); font-size:.78rem; }
.tvm { display:flex; gap:18px; margin-bottom:14px; }
.tvm b { font-size:1.5rem; font-weight:900; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.tvb { display:flex; align-items:flex-end; gap:6px; height:50px; margin-bottom:12px; }
.tvb i { flex:1; background:var(--grad); border-radius:3px 3px 0 0; }
.tvb i:nth-child(1){height:40%;} .tvb i:nth-child(2){height:70%;} .tvb i:nth-child(3){height:55%;} .tvb i:nth-child(4){height:90%;} .tvb i:nth-child(5){height:65%;}
.tvr { display:flex; justify-content:space-between; padding:8px 0; border-top:1px solid rgba(255,255,255,.1); font-size:.84rem; }
.tvr strong { color:var(--g-300); }
.tv-stand { width:80px; height:12px; background:#1b2833; border-radius:0 0 8px 8px; margin:0 auto; }
.scanner-mock { width:190px; padding:14px; border-radius:20px 20px 26px 26px; background:linear-gradient(160deg,#1a2530,#0b1720); box-shadow:var(--sh-3); }
.sc-screen { border-radius:12px; padding:14px; background:var(--card); position:relative; overflow:hidden; }
.sch { display:flex; justify-content:space-between; font-size:.8rem; font-weight:700; margin-bottom:10px; }
.sch em { font-style:normal; color:var(--g-600); font-size:.72rem; }
.scline { height:2px; background:var(--grad); margin-bottom:10px; animation:scan 2s ease-in-out infinite; }
@keyframes scan { 0%,100%{transform:translateY(0);opacity:.5;} 50%{transform:translateY(30px);opacity:1;} }
.sccode { text-align:center; font-family:monospace; font-size:.86rem; font-weight:700; padding:8px; border:1px dashed var(--line); border-radius:8px; margin-bottom:10px; }
.scacts { display:grid; grid-template-columns:1fr 1fr; gap:6px; margin-bottom:10px; }
.scacts span { padding:7px; border-radius:7px; background:var(--grad-soft); font-size:.72rem; font-weight:700; text-align:center; color:var(--g-600); }
.sclist div { display:flex; justify-content:space-between; padding:5px 0; font-size:.76rem; color:var(--ink-3); }
.sclist strong { color:var(--ink); }
.sc-trigger { width:40px; height:8px; background:#2a3540; border-radius:4px; margin:12px auto 0; }

/* ============ 企业简介 ============ */
.intro { padding:var(--s6) 0; }
.intro-grid { display:grid; grid-template-columns:1fr 1fr; gap:var(--s6); align-items:start; }
.intro-copy .eyebrow { margin-bottom:12px; }
.intro-copy h2 { font-size:clamp(1.7rem,3.2vw,2.4rem); font-weight:900; margin-bottom:18px; }
.intro-copy p { color:var(--ink-2); margin-bottom:14px; }
.tags { display:flex; flex-wrap:wrap; gap:8px; margin-top:22px; }
.tags span { padding:8px 14px; border-radius:999px; background:var(--card); border:1px solid var(--line); font-size:.84rem; font-weight:600; }
.cap-list { display:grid; grid-template-columns:1fr 1fr; gap:var(--s2); }
.cap { padding:22px; border-radius:var(--r); background:var(--card); border:1px solid var(--line); box-shadow:var(--sh-1); transition:transform .3s var(--ease); }
.cap:hover { transform:translateY(-4px); box-shadow:var(--sh-2); }
.cap span { display:block; font-weight:800; color:var(--g-600); margin-bottom:8px; }
.cap p { font-size:.9rem; color:var(--ink-2); }
.cap-wide { grid-column:span 2; }
.cap-head { display:flex; align-items:center; gap:10px; margin-bottom:10px; }
.cap-head span { font-size:1.05rem; margin-bottom:0; }
.cap-head em { font-style:normal; font-size:.8rem; color:var(--ink-3); }
.cap-path { display:flex; flex-wrap:wrap; gap:8px; margin-top:14px; }
.cap-path span { padding:8px 14px; border-radius:8px; background:var(--grad-soft); font-size:.82rem; font-weight:700; color:var(--g-600); }

/* ============ 数据带 ============ */
.stats { padding:var(--s5) 0; background:linear-gradient(180deg,var(--bg),var(--bg-2)); }
.stat-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:var(--s3); }
.stat { text-align:center; padding:var(--s4) 20px; border-radius:var(--r); background:var(--card); border:1px solid var(--line); box-shadow:var(--sh-1); transition:transform .3s var(--ease),box-shadow .3s; }
.stat:hover { transform:translateY(-5px); box-shadow:var(--sh-2); }
.stat strong { display:block; font-size:2.6rem; font-weight:900; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.stat span { font-size:.92rem; color:var(--ink-2); margin-top:8px; display:block; }

/* ============ 联系 ============ */
.contact { padding:var(--s6) 0; }
.contact-card { display:grid; grid-template-columns:1.3fr .7fr; gap:var(--s5); align-items:center; padding:var(--s5); border-radius:var(--r-lg); background:linear-gradient(150deg,#fff,var(--g-50)); border:1px solid var(--line); box-shadow:var(--sh-3); position:relative; overflow:hidden; }
.contact-card::before { content:""; position:absolute; width:420px; height:420px; border-radius:50%; background:radial-gradient(circle,rgba(6,182,212,.14),transparent 70%); top:-160px; right:-120px; }
.contact-copy { position:relative; z-index:2; }
.contact-copy .eyebrow { margin-bottom:12px; }
.contact-copy h2 { font-size:clamp(1.5rem,3vw,2.1rem); font-weight:900; margin-bottom:14px; }
.contact-copy > p { color:var(--ink-2); margin-bottom:18px; }
.contact-qr { position:relative; z-index:2; display:grid; gap:10px; justify-items:center; padding:18px; border-radius:var(--r); background:var(--card); box-shadow:var(--sh-2); transition:transform .25s var(--ease); }
.contact-qr:hover { transform:translateY(-4px) scale(1.02); }
.contact-qr img { width:150px; height:150px; border-radius:10px; }
.contact-qr span { font-size:.82rem; font-weight:700; color:var(--ink-2); }

/* ============ 页脚 ============ */
.footer { background:var(--bg-2); color:var(--ink-2); padding:var(--s5) 0 24px; border-top:1px solid var(--line); }
.footer .brand-name { color:var(--ink); }
.footer-grid { display:grid; grid-template-columns:1.4fr 1fr; gap:var(--s5); padding-bottom:var(--s4); border-bottom:1px solid var(--line); }
.footer-brand { margin-bottom:16px; }
.footer p { font-size:.9rem; margin-bottom:8px; }
.footer-address { color:var(--ink-3); }
.footer-links { display:flex; flex-direction:column; gap:12px; align-items:flex-start; }
.footer-links a,.footer-links button { color:var(--ink-2); font-size:.94rem; transition:color .25s; }
.footer-links a:hover,.footer-links button:hover { color:var(--g-600); }
.footer-bottom { width:min(var(--max),calc(100% - 48px)); margin:0 auto; display:flex; flex-wrap:wrap; justify-content:center; text-align:center; gap:12px 24px; padding-top:22px; font-size:.82rem; color:var(--ink-3); }

/* ============ 弹窗 ============ */
.qr-modal { position:fixed; inset:0; z-index:200; display:grid; place-items:center; padding:20px; }
.qr-modal[hidden] { display:none; }
.qr-modal-bg { position:absolute; inset:0; background:rgba(11,31,42,.55); backdrop-filter:blur(6px); animation:fadeIn .3s; }
.qr-modal-card { position:relative; z-index:2; max-width:380px; width:100%; padding:36px 30px; border-radius:var(--r-lg); background:var(--card); text-align:center; box-shadow:var(--sh-3); animation:pop .4s var(--ease); }
.qr-modal-card .eyebrow { margin-bottom:8px; }
.qr-modal-card h2 { font-size:1.4rem; font-weight:900; margin-bottom:8px; }
.qr-modal-card > p { font-size:.9rem; color:var(--ink-2); margin-bottom:18px; }
.qr-modal-card img { width:220px; height:220px; border-radius:12px; margin:0 auto; }
.qr-modal-close { position:absolute; top:14px; right:16px; width:34px; height:34px; border-radius:50%; font-size:1.4rem; color:var(--ink-2); background:var(--bg); transition:.25s; }
.qr-modal-close:hover { background:var(--line); }
@keyframes fadeIn { from{opacity:0;} to{opacity:1;} }
@keyframes pop { from{opacity:0;transform:scale(.92) translateY(14px);} to{opacity:1;transform:none;} }

/* ============ 通用 ============ */
@keyframes fadeUp { from{opacity:0;transform:translateY(16px);} to{opacity:1;transform:none;} }
.reveal { opacity:0; transform:translateY(28px); transition:opacity .7s var(--ease),transform .7s var(--ease); transition-delay:var(--reveal-delay,0ms); }
.reveal.in { opacity:1; transform:none; }

/* ============ 响应式 ============ */
@media (max-width:1080px) {
  .hero-inner { grid-template-columns:1fr; gap:var(--s5); }
  .hero-panel { order:-1; }
  .hero-panel.dash-panel { order:initial; }
  .dash-panel .panel-body { grid-template-columns:1fr; grid-template-areas:"m" "c" "f"; }
  .dash-panel .panel-flow { flex-direction:row; flex-wrap:wrap; }
  .dash-panel .panel-flow b { transform:none; }
  .pipe-track { flex-wrap:wrap; }
  .pipe-node { flex:1 1 40%; }
  .pipe-arrow { display:none; }
  .flow { grid-template-columns:repeat(2,1fr); }
  .stat-grid { grid-template-columns:repeat(2,1fr); }
}
@media (max-width:860px) {
  .menu-button { display:flex; }
  .nav-links { position:absolute; top:calc(100% + 8px); left:24px; right:24px; flex-direction:column; align-items:stretch; gap:4px; padding:12px; border-radius:16px; background:rgba(255,255,255,.97); backdrop-filter:blur(20px); border:1px solid var(--line); box-shadow:var(--sh-3); opacity:0; pointer-events:none; transform:translateY(-10px); transition:.3s var(--ease); }
  .nav-links.open { opacity:1; pointer-events:auto; transform:none; }
  .nav-cta { margin-left:0; margin-top:4px; }
  .value-grid,.bento { grid-template-columns:1fr; }
  .b-wide,.b-tall { grid-column:auto; grid-row:auto; }
  .dl-panel { grid-template-columns:1fr; }
  .download-tabs { grid-template-columns:repeat(3,1fr); }
  .download-tab { min-height:56px; font-size:.92rem; }
  .download-tab:nth-child(3n) { border-right:0; }
  .intro-grid { grid-template-columns:1fr; }
  .cap-list { grid-template-columns:1fr 1fr; }
  .contact-card { grid-template-columns:1fr; text-align:center; }
  .contact-qr { justify-self:center; }
  .footer-grid { grid-template-columns:1fr; }
  .chain-map { grid-template-columns:1fr; }
  .chain-map i { width:2px; height:20px; justify-self:center; }
  .chain-map i::after { right:auto; left:50%; top:auto; bottom:-2px; transform:translateX(-50%) rotate(135deg); }
  .b-result { grid-template-columns:1fr; }
}
@media (max-width:560px) {
  .section-inner { width:calc(100% - 32px); }
  .hero { padding-top:78px; padding-bottom:24px; }
  .panel-metrics { grid-template-columns:1fr; }
  .pipe-node { flex:1 1 100%; }
  .flow,.stat-grid,.cap-list { grid-template-columns:1fr; }
  .cap-wide { grid-column:auto; }
  .login-mock { grid-template-columns:1fr; }
  .dl-panel { padding:26px 20px; }
  .contact-card,.qr-modal-card { padding:26px 20px; }
}
@media (prefers-reduced-motion:reduce) {
  *,*::before,*::after { animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; scroll-behavior:auto !important; }
  .reveal { opacity:1; transform:none; }
}