/* =============================================================================
 * 智元创新 · AIBOT 门户 — CONTROL DECK 主题
 * 深色控制台 · 真实影片为主角 · 招牌动作「扫描点亮 + 量出来的分隔线」
 * 零外部字体 / 零 CDN / CSP 安全(无内联 style)
 * ========================================================================== */

/* ---------- 令牌 ---------- */
:root {
  --ink: #0a0e17;
  --ink-2: #0c111c;
  --panel: #10151f;
  --panel-2: #0e1420;
  --warm: #121a29; /* 私募区略暖略亮 */
  --steel: #1b2536;
  --line: #232f43;
  --line-2: #2c3a52;
  --steel-hi: #3a4a66;

  --text: #e6ebf5;
  --text-2: #9fb0c9;
  --text-3: #7f90aa;

  --blue: #2b5bf6;
  --blue-hi: #4d78ff;
  --cyan: #00c2c7;
  --cyan-hi: #33dfe4;

  --mono: ui-monospace, 'SF Mono', 'SFMono-Regular', Menlo, Consolas, 'Liberation Mono', monospace;
  --sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'PingFang HK', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;

  --t-reveal: 620ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io: cubic-bezier(0.4, 0, 0.2, 1);

  --topbar-h: 56px;
  --maxw: 1200px;
  --pad: clamp(20px, 5vw, 64px);
}

/* ---------- 复位 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0.005em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; color: inherit; background: none; border: none; cursor: pointer; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 800; letter-spacing: -0.01em; line-height: 1.18; }
p { margin: 0; }
ol, ul { margin: 0; padding: 0; list-style: none; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: 0.02em; }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 2px; }

.skip-link {
  position: fixed; left: 12px; top: -60px; z-index: 200;
  background: var(--blue); color: #fff; padding: 10px 16px; border-radius: 8px;
  transition: top 0.2s var(--ease-io);
}
.skip-link:focus { top: 12px; }

.wrap { width: min(100% - var(--pad) * 2, var(--maxw)); margin-inline: auto; }
[data-section] { scroll-margin-top: var(--topbar-h); }

/* ---------- 招牌:扫描线 ---------- */
.section { position: relative; }
.scan {
  position: absolute; left: 0; right: 0; top: 0; height: 2px; z-index: 6;
  background: linear-gradient(90deg, transparent, var(--cyan) 30%, var(--cyan-hi) 50%, var(--cyan) 70%, transparent);
  box-shadow: 0 0 18px rgba(0, 194, 199, 0.6);
  opacity: 0; transform: translateY(0);
  pointer-events: none;
}
.section.revealed .scan { animation: scan var(--t-reveal) var(--ease-out) forwards; }
@keyframes scan {
  0% { opacity: 0; transform: translateY(0); }
  12% { opacity: 1; }
  88% { opacity: 1; }
  100% { opacity: 0; transform: translateY(min(72vh, 640px)); }
}

/* ---------- 招牌:量出来的分隔线 ---------- */
.caliper { position: relative; height: 1px; width: 96px; margin: 22px 0 4px; background: var(--line-2); }
.caliper b {
  position: absolute; left: 0; top: 0; height: 1px; width: 100%;
  background: linear-gradient(90deg, var(--blue), var(--blue-hi));
  transform: scaleX(0); transform-origin: left; transition: transform 640ms var(--ease-out);
}
.caliper b::after {
  content: ''; position: absolute; right: -1px; top: -2px; width: 2px; height: 5px;
  background: var(--cyan); opacity: 0; transition: opacity 0.2s var(--ease-io) 0.5s;
}
.caliper.in b { transform: scaleX(1); }
.caliper.in b::after { opacity: 1; }
.caliper--full { width: 100%; margin: 40px 0; }

/* ---------- 逐元素「滑动载入」揭示(每个元素进入视口时各自点亮) ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }
/* 大标题:多给一点位移与 clip,入场更有「载入」感 */
h2.reveal { transform: translateY(40px); }
.hero__stage.reveal { transform: translateY(48px) scale(0.985); }
.hero__stage.reveal.in { transform: none; }

/* ---------- 小节标签 ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-2); text-transform: uppercase;
  padding: 5px 10px; border: 1px solid var(--line); border-radius: 4px; background: rgba(255, 255, 255, 0.015);
}
.tag i { width: 6px; height: 6px; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); border-radius: 1px; }

/* ---------- 按钮 ---------- */
.btn {
  position: relative; display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 22px; font-size: 15px; font-weight: 600; border-radius: 6px;
  overflow: hidden; transition: transform 0.18s var(--ease-io), border-color 0.2s var(--ease-io), background 0.2s var(--ease-io);
  white-space: nowrap;
}
.btn--sm { padding: 8px 14px; font-size: 13px; }
.btn--lg { padding: 16px 28px; font-size: 16px; }
.btn--solid { background: var(--blue); color: #fff; box-shadow: 0 8px 22px rgba(43, 91, 246, 0.32); }
.btn--solid::after {
  content: ''; position: absolute; inset: 0; transform: translateX(-130%);
  background: linear-gradient(105deg, transparent 30%, rgba(255, 255, 255, 0.35) 50%, transparent 70%);
}
.btn--solid:hover { background: var(--blue-hi); }
.btn--solid:hover::after { transform: translateX(130%); transition: transform 0.6s var(--ease-io); }
.btn--solid:active { transform: translateY(1px); }
.btn--ghost { border: 1px solid var(--line-2); color: var(--text); }
.btn--ghost .sq { width: 8px; height: 8px; border: 1px solid var(--text-3); transition: all 0.2s var(--ease-io); }
.btn--ghost:hover { border-color: var(--cyan); color: #fff; }
.btn--ghost:hover .sq { background: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 10px var(--cyan); }
.btn--ghost:active { transform: translateY(1px); }

/* ========================================================================== */
/* 00 · 顶栏                                                                    */
/* ========================================================================== */
.topbar {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--topbar-h);
  display: flex; align-items: center;
  background: rgba(10, 14, 23, 0); border-bottom: 1px solid transparent;
  padding-left: env(safe-area-inset-left); padding-right: env(safe-area-inset-right);
  transition: background 0.3s var(--ease-io), border-color 0.3s var(--ease-io), backdrop-filter 0.3s;
}
.topbar.is-stuck {
  background: rgba(10, 14, 23, 0.72);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom-color: var(--line);
}
.topbar__inner { width: min(100% - 32px, 1320px); margin-inline: auto; display: flex; align-items: center; gap: 20px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand__logo { width: 30px; height: 30px; object-fit: contain; }
.brand__name { display: flex; flex-direction: column; line-height: 1.1; }
.brand__cn { font-weight: 800; font-size: 15px; letter-spacing: 0.02em; }
.brand__meta { font-size: 10px; color: var(--text-3); }

.nav { display: flex; gap: 4px; margin-left: auto; }
.nav__link {
  position: relative; padding: 8px 12px; font-size: 13px; color: var(--text-2);
  transition: color 0.2s var(--ease-io);
}
.nav__link .mono { color: var(--text-3); margin-right: 3px; font-size: 11px; transition: color 0.2s; }
.nav__link::after {
  content: ''; position: absolute; left: 12px; right: 12px; bottom: 4px; height: 1px;
  background: var(--cyan); transform: scaleX(0); transform-origin: left;
  transition: transform 0.25s var(--ease-out); box-shadow: 0 0 8px var(--cyan);
}
.nav__link:hover { color: var(--text); }
.nav__link.is-active { color: #fff; }
.nav__link.is-active .mono { color: var(--cyan); }
.nav__link.is-active::after { transform: scaleX(1); }

.topbar__actions { display: flex; align-items: center; gap: 10px; margin-left: 6px; }
.lang { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--text-3); padding: 5px 8px; border: 1px solid var(--line); border-radius: 4px; }
.lang__opt { transition: color 0.2s; }
.lang__opt.is-on { color: var(--text); }
.lang__sep { opacity: 0.5; }

.burger { display: none; width: 38px; height: 38px; flex-direction: column; justify-content: center; gap: 5px; padding: 9px; border: 1px solid var(--line); border-radius: 6px; }
.burger span { display: block; height: 1.5px; background: var(--text); transition: transform 0.25s var(--ease-io), opacity 0.2s; }
.burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- 抽屉 ---------- */
.drawer {
  position: fixed; inset: var(--topbar-h) 0 0 0; z-index: 90;
  background: rgba(8, 11, 18, 0.96); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  transform: translateY(-8px); opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity 0.25s var(--ease-io), transform 0.25s var(--ease-io), visibility 0s linear 0.25s;
}
.drawer.is-open { opacity: 1; transform: none; visibility: visible; pointer-events: auto; transition: opacity 0.25s var(--ease-io), transform 0.25s var(--ease-io), visibility 0s; }
.drawer__nav { display: flex; flex-direction: column; padding: 20px var(--pad) calc(20px + env(safe-area-inset-bottom)); gap: 2px; }
.drawer__nav a { padding: 16px 6px; font-size: 20px; font-weight: 700; border-bottom: 1px solid var(--line); }
.drawer__nav a .mono { color: var(--text-3); font-size: 14px; margin-right: 10px; }
.drawer__cta { margin-top: 18px; color: var(--blue-hi) !important; border-bottom: none !important; }

/* ---------- HUD ---------- */
.hud {
  position: fixed; right: 20px; top: calc(var(--topbar-h) + 16px); z-index: 80;
  display: flex; align-items: center; gap: 10px; padding: 7px 11px;
  border: 1px solid var(--line); border-radius: 6px; background: rgba(10, 14, 23, 0.5);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  opacity: 0; transform: translateX(10px); transition: opacity 0.4s, transform 0.4s;
}
.hud.is-on { opacity: 1; transform: none; }
.hud__bars { display: flex; align-items: flex-end; gap: 2px; height: 16px; }
.hud__bars i { width: 3px; height: 100%; background: var(--steel); border-radius: 1px; transition: background 0.3s, box-shadow 0.3s; }
.hud__bars i.on { background: var(--cyan); box-shadow: 0 0 6px var(--cyan); }
.hud__label { font-size: 11px; color: var(--text-2); }
.hud__label [data-hud-idx] { color: var(--cyan); }

/* ========================================================================== */
/* 蓝图栅格                                                                     */
/* ========================================================================== */
.grid-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(43, 91, 246, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43, 91, 246, 0.05) 1px, transparent 1px),
    linear-gradient(rgba(43, 91, 246, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43, 91, 246, 0.025) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px, 16px 16px, 16px 16px;
  -webkit-mask-image: radial-gradient(120% 90% at 60% 40%, #000 25%, transparent 78%);
  mask-image: radial-gradient(120% 90% at 60% 40%, #000 25%, transparent 78%);
}

/* ========================================================================== */
/* 监视器 · 视频取景框                                                          */
/* ========================================================================== */
.monitor {
  position: relative; overflow: hidden; border: 1px solid var(--line-2);
  border-radius: 6px; background: #05070c; aspect-ratio: 720 / 394;
}
.monitor__video { width: 100%; height: 100%; object-fit: cover; }
.monitor__frame { position: absolute; inset: 0; pointer-events: none; z-index: 3; }
.mc { position: absolute; width: 18px; height: 18px; border: 0 solid var(--steel-hi); transition: width 0.5s var(--ease-out), height 0.5s var(--ease-out), border-color 0.25s; }
.revealed .mc { width: 22px; height: 22px; }
.mc--tl { top: 8px; left: 8px; border-top-width: 1.5px; border-left-width: 1.5px; }
.mc--tr { top: 8px; right: 8px; border-top-width: 1.5px; border-right-width: 1.5px; }
.mc--bl { bottom: 8px; left: 8px; border-bottom-width: 1.5px; border-left-width: 1.5px; }
.mc--br { bottom: 8px; right: 8px; border-bottom-width: 1.5px; border-right-width: 1.5px; }
.monitor:hover .mc { border-color: var(--cyan); }
.monitor__scan {
  position: absolute; inset: 0; pointer-events: none; z-index: 2; opacity: 0.5;
  background:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.03) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, transparent 55%, rgba(10, 14, 23, 0.55) 100%);
  mix-blend-mode: screen;
}
.monitor__hud {
  position: absolute; top: 12px; right: 12px; z-index: 4;
  display: none; align-items: center; gap: 7px; font-size: 11px; color: #fff;
  padding: 4px 8px; background: rgba(5, 7, 12, 0.62); border: 1px solid var(--line); border-radius: 4px;
}
.monitor.is-playing .monitor__hud { display: inline-flex; }
.rec { width: 7px; height: 7px; border-radius: 50%; background: #ff4b4b; box-shadow: 0 0 8px #ff4b4b; animation: blink 1.4s steps(1) infinite; }
.rec--cyan { background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }
@keyframes blink { 50% { opacity: 0.25; } }

.monitor__play {
  position: absolute; inset: 0; z-index: 5; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 12px;
  background: radial-gradient(60% 60% at 50% 50%, rgba(5, 7, 12, 0.15), rgba(5, 7, 12, 0.55));
  color: #fff; font-size: 12px; letter-spacing: 0.12em;
  transition: opacity 0.3s var(--ease-io), background 0.3s;
}
.monitor__play i {
  width: 56px; height: 56px; border: 1.5px solid rgba(255, 255, 255, 0.7); border-radius: 50%;
  position: relative; transition: border-color 0.25s, transform 0.25s var(--ease-io), box-shadow 0.25s;
}
.monitor__play i::after {
  content: ''; position: absolute; left: 53%; top: 50%; transform: translate(-50%, -50%);
  border-style: solid; border-width: 9px 0 9px 15px; border-color: transparent transparent transparent #fff;
}
.monitor__play:hover i { border-color: var(--cyan); box-shadow: 0 0 22px rgba(0, 194, 199, 0.55); transform: scale(1.06); }
.monitor.is-playing .monitor__play { opacity: 0; pointer-events: none; }

.monitor__ctrl {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 5;
  display: flex; align-items: center; gap: 12px; padding: 9px 12px; font-size: 12px; color: #fff;
  background: linear-gradient(0deg, rgba(5, 7, 12, 0.85), transparent);
  opacity: 0; transform: translateY(6px); transition: opacity 0.25s, transform 0.25s;
}
.monitor.is-playing:hover .monitor__ctrl, .monitor.is-playing:focus-within .monitor__ctrl { opacity: 1; transform: none; }
.monitor__ctrl [data-time] { color: var(--text-2); }
.monitor__ctrl button { padding: 3px 6px; border: 1px solid transparent; border-radius: 3px; transition: border-color 0.2s, color 0.2s; }
.monitor__ctrl button:hover { border-color: var(--cyan); color: var(--cyan); }
.monitor__ctrl [data-mute] { margin-left: auto; }
.monitor__spec {
  position: absolute; left: 12px; bottom: 12px; z-index: 4; font-size: 10.5px; color: var(--text-2);
  padding: 3px 7px; background: rgba(5, 7, 12, 0.5); border: 1px solid var(--line); border-radius: 3px;
}

/* ========================================================================== */
/* 01 · HERO                                                                    */
/* ========================================================================== */
.hero { min-height: 100svh; display: flex; align-items: center; padding: calc(var(--topbar-h) + 40px) 0 90px; overflow: hidden; }
.hero__inner {
  position: relative; z-index: 2; width: min(100% - var(--pad) * 2, 1320px); margin-inline: auto;
  display: grid; grid-template-columns: minmax(0, 44%) minmax(0, 56%); align-items: center; gap: clamp(24px, 4vw, 56px);
}
.hero__copy { max-width: 560px; }
.statusbar { display: inline-flex; align-items: center; gap: 8px; font-size: 11.5px; color: var(--text-2); margin: 0 0 22px; padding: 5px 10px; border: 1px solid var(--line); border-radius: 4px; }
.statusbar .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); animation: pulse 2.4s var(--ease-io) infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero__title { font-size: clamp(46px, 8vw, 104px); font-weight: 900; letter-spacing: -0.035em; line-height: 0.98; }
.hero__title .line { display: block; }
.hero__title .line--2 { font-size: clamp(22px, 3.3vw, 40px); font-weight: 800; letter-spacing: -0.02em; color: var(--text-2); margin-top: 10px; }
.split-char { display: inline-block; opacity: 0; transform: translateY(0.5em); }
.revealed .split-char { animation: charin 0.5s var(--ease-out) forwards; }
@keyframes charin { to { opacity: 1; transform: none; } }

.hero__latin { font-size: clamp(11px, 1.3vw, 13px); letter-spacing: 0.22em; color: var(--cyan); text-transform: uppercase; margin: 20px 0 0; }
.hero__lede { color: var(--text-2); font-size: clamp(14px, 1.5vw, 16px); margin: 18px 0 0; max-width: 46ch; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.hero__stage { position: relative; }
.monitor--live { box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5); }
.monitor--live .monitor__video { -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%); mask-image: linear-gradient(90deg, transparent, #000 12%); }
.monitor--live::after { content: ''; position: absolute; inset: 0; z-index: 1; pointer-events: none; background: linear-gradient(90deg, var(--ink) 2%, transparent 30%), linear-gradient(0deg, rgba(10, 14, 23, 0.5), transparent 45%); }

.scrolldown {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 3;
  display: flex; flex-direction: column; align-items: center; gap: 10px; font-size: 10px; letter-spacing: 0.15em; color: var(--text-3);
  transition: color 0.2s;
}
.scrolldown:hover { color: var(--cyan); }
.scrolldown__rail { position: relative; width: 1px; height: 40px; background: var(--line-2); overflow: hidden; }
.scrolldown__rail b { position: absolute; left: -1px; top: 0; width: 3px; height: 10px; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); animation: drop 1.8s var(--ease-io) infinite; }
@keyframes drop { 0% { transform: translateY(-12px); opacity: 0; } 30% { opacity: 1; } 100% { transform: translateY(42px); opacity: 0; } }

/* ========================================================================== */
/* 02 · 实力仪表盘                                                              */
/* ========================================================================== */
.spec { padding: clamp(70px, 10vw, 130px) 0; background: var(--ink); border-top: 1px solid var(--line); }
.block-head h2 { font-size: clamp(24px, 3.6vw, 40px); max-width: 20ch; margin-top: 14px; }
.intro { margin-top: 30px; display: grid; gap: 16px; max-width: 62ch; }
.intro p { color: var(--text-2); font-size: clamp(14px, 1.5vw, 16px); }
.intro p:first-child { color: var(--text); }

.specbar { margin-top: 54px; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--panel); }
.kpi { position: relative; padding: 26px 22px 24px; border-right: 1px solid var(--line); overflow: hidden; }
.kpi:last-child { border-right: none; }
.kpi__num { font-size: clamp(30px, 4vw, 46px); font-weight: 700; color: #fff; display: flex; align-items: baseline; gap: 4px; }
.kpi__num b { font-size: 0.42em; font-weight: 600; color: var(--cyan); }
.kpi__label { margin-top: 8px; font-size: 13px; color: var(--text-2); }
.kpi__label .hint { color: var(--text-3); font-size: 11px; }
.kpi__cap { display: block; margin-top: 10px; font-size: 10.5px; color: var(--text-3); max-width: 30ch; opacity: 0; transform: translateY(4px); transition: opacity 0.25s, transform 0.25s; }
.kpi:hover .kpi__cap { opacity: 1; transform: none; }
.kpi__corner { position: absolute; top: 0; left: 0; width: 14px; height: 14px; border-top: 1.5px solid var(--line-2); border-left: 1.5px solid var(--line-2); transition: width 0.3s var(--ease-out), height 0.3s var(--ease-out), border-color 0.25s; }
.kpi:hover .kpi__corner { width: 26px; height: 26px; border-color: var(--cyan); }

/* ========================================================================== */
/* 03 · 智造现场                                                                */
/* ========================================================================== */
.floor { padding: clamp(70px, 10vw, 130px) 0; background: linear-gradient(180deg, var(--ink), var(--panel-2)); border-top: 1px solid var(--line); }
.floor__grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(28px, 4vw, 60px); align-items: center; }
.floor__stage .monitor { clip-path: inset(0 12% 0 0); transition: clip-path 0.7s var(--ease-out); box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5); }
.floor__stage.in .monitor { clip-path: inset(0 0 0 0); }
.floor__text h2 { font-size: clamp(24px, 3.4vw, 38px); margin-top: 14px; }
.floor__text > p { color: var(--text-2); margin-top: 16px; max-width: 44ch; }
.keywords { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.keywords li {
  font-size: 12px; color: var(--text-2); padding: 7px 13px; border: 1px solid var(--line);
  border-radius: 4px; background: rgba(255, 255, 255, 0.02);
  opacity: 0; transform: translateY(8px); transition: opacity 0.4s var(--ease-out), transform 0.4s var(--ease-out), border-color 0.25s, color 0.25s;
}
.keywords.in li { opacity: 1; transform: none; }
.keywords.in li:nth-child(1) { transition-delay: 0.12s; }
.keywords.in li:nth-child(2) { transition-delay: 0.22s; }
.keywords.in li:nth-child(3) { transition-delay: 0.32s; }
.keywords.in li:nth-child(4) { transition-delay: 0.42s; }
.keywords.in li:nth-child(5) { transition-delay: 0.52s; }
.keywords li:hover { border-color: var(--cyan); color: #fff; }
/* 拉丝金属说明卡质感限定在文字块背板 */
.floor__text { position: relative; padding: clamp(20px, 3vw, 34px); border: 1px solid var(--line); border-radius: 10px;
  background:
    repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.018) 0 2px, transparent 2px 5px),
    linear-gradient(160deg, #131b28, #0e1420); }

/* ========================================================================== */
/* 04 · 走进城市                                                                */
/* ========================================================================== */
.wild { padding: clamp(60px, 8vw, 100px) 0; background: var(--panel-2); border-top: 1px solid var(--line); overflow: hidden; }
.wild__letterbox { position: relative; width: min(100% - 24px, 1320px); margin-inline: auto; }
.monitor--wide { aspect-ratio: 21 / 9; border-radius: 8px; }
.monitor--wide .monitor__video { transform: scale(1.06); transition: transform 6s ease-out; }
.monitor--wide.is-playing .monitor__video { transform: scale(1); }
.wild__cap { position: absolute; left: clamp(20px, 4vw, 48px); bottom: clamp(20px, 4vw, 44px); z-index: 6; max-width: 30ch; }
.wild__cap h2 { font-size: clamp(22px, 3.4vw, 40px); text-shadow: 0 2px 30px rgba(0, 0, 0, 0.7); }
.wild__cap p { margin-top: 10px; font-size: 12px; color: var(--text-2); }

/* ========================================================================== */
/* 05 · 生态                                                                    */
/* ========================================================================== */
.eco { padding: clamp(70px, 10vw, 130px) 0; background: linear-gradient(180deg, var(--panel-2), var(--ink)); border-top: 1px solid var(--line); }
.eco__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 4vw, 60px); align-items: center; }
.eco__text h2 { font-size: clamp(24px, 3.4vw, 38px); margin-top: 14px; max-width: 16ch; }
.eco__text > p { color: var(--text-2); margin-top: 16px; max-width: 46ch; }
.eco__counts { display: flex; flex-wrap: wrap; gap: 26px; margin-top: 28px; }
.minic { display: flex; flex-direction: column; gap: 4px; }
.minic > span { font-size: clamp(24px, 3vw, 34px); font-weight: 700; color: #fff; }
.minic em { font-style: normal; font-size: 12px; color: var(--text-2); }
.minic em b { color: var(--text-3); font-weight: 400; }
.eco__stage .monitor--eco { box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5); }

/* ========================================================================== */
/* 06 · 私募                                                                    */
/* ========================================================================== */
.offer { padding: clamp(70px, 10vw, 130px) 0; background: var(--warm); border-top: 1px solid var(--line-2); }
.offer__grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(30px, 4vw, 64px); align-items: start; }
.offer__text h2 { font-size: clamp(26px, 3.8vw, 44px); margin-top: 14px; }
.offer__text > p { color: var(--text-2); margin-top: 16px; max-width: 50ch; }
.caps { margin-top: 34px; display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.cap { padding: 20px; background: var(--panel); transition: background 0.25s; }
.cap:hover { background: #141d2e; }
.cap h3 { font-size: 15px; color: #fff; }
.cap h3::before { content: ''; display: inline-block; width: 6px; height: 6px; background: var(--blue); margin-right: 8px; vertical-align: middle; border-radius: 1px; }
.cap p { margin-top: 8px; font-size: 12.5px; color: var(--text-2); line-height: 1.55; }

.terminal { border: 1px solid var(--line-2); border-radius: 10px; background: linear-gradient(180deg, #0e1522, #0b1019); overflow: hidden; position: sticky; top: calc(var(--topbar-h) + 20px); }
.terminal__head { display: flex; align-items: center; gap: 8px; padding: 12px 16px; font-size: 11px; color: var(--text-2); border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, 0.015); }
.steps { position: relative; padding: 8px 16px 18px; }
.steps::before { content: ''; position: absolute; left: 31px; top: 24px; bottom: 30px; width: 1px; background: var(--line-2); }
.steps::after { content: ''; position: absolute; left: 31px; top: 24px; width: 1px; height: 0; background: linear-gradient(180deg, var(--cyan), var(--blue)); box-shadow: 0 0 8px var(--cyan); transition: height 0.9s var(--ease-out); }
.terminal.in .steps::after { height: calc(100% - 54px); }
.step { position: relative; display: grid; grid-template-columns: 32px 1fr; gap: 14px; padding: 14px 0; align-items: start; }
.step__no { display: flex; align-items: center; justify-content: center; width: 30px; height: 30px; font-size: 12px; color: var(--text-2); border: 1px solid var(--line-2); border-radius: 50%; background: var(--ink); position: relative; z-index: 2; transition: border-color 0.25s, color 0.25s, box-shadow 0.25s; }
.step:hover .step__no, .step.is-on .step__no { border-color: var(--cyan); color: var(--cyan); box-shadow: 0 0 14px rgba(0, 194, 199, 0.5); }
.step h4 { font-size: 15px; color: #fff; margin-top: 4px; }
.step p { font-size: 12.5px; color: var(--text-2); margin-top: 5px; }

/* ========================================================================== */
/* 07 · 行情 ticker                                                             */
/* ========================================================================== */
.ticker { padding: 0; background: var(--ink); border-block: 1px solid var(--line); overflow: hidden; }
.ticker__track { display: flex; width: max-content; will-change: transform; }
.ticker.is-run .ticker__track { animation: marquee 48s linear infinite; }
.ticker:hover .ticker__track { animation-play-state: paused; }
.ticker__group { display: flex; padding: 18px 0; }
.ti { display: inline-flex; align-items: baseline; gap: 8px; padding: 0 34px; font-size: 13px; color: var(--text-2); border-right: 1px solid var(--line); white-space: nowrap; }
.ti b { color: var(--text-3); font-weight: 400; }
.ti em { font-style: normal; color: #fff; font-size: 15px; font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: 0.01em; }
.ti u { text-decoration: none; color: var(--text-3); font-size: 12px; }
.ti i { font-style: normal; font-size: 10px; color: var(--cyan); border: 1px solid rgba(0, 194, 199, 0.3); padding: 1px 5px; border-radius: 3px; margin-left: 2px; font-family: var(--mono); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ========================================================================== */
/* 08 · App CTA                                                                 */
/* ========================================================================== */
.app { padding: clamp(70px, 10vw, 130px) 0; background: linear-gradient(180deg, var(--ink), var(--panel-2)); border-top: 1px solid var(--line); }
.app__grid { display: grid; grid-template-columns: 1.3fr 0.7fr; gap: clamp(30px, 5vw, 70px); align-items: center; }
.app__text h2 { font-size: clamp(28px, 4.4vw, 52px); margin-top: 14px; }
.app__text > p { color: var(--text-2); margin-top: 16px; max-width: 44ch; }
.app__cta { display: flex; align-items: center; gap: 16px; margin-top: 30px; }
.app__soon { font-size: 12px; color: var(--cyan); padding: 6px 12px; border: 1px solid rgba(0, 194, 199, 0.35); border-radius: 4px; }
.app__soon.show { animation: soonpop 1.6s var(--ease-out); }
@keyframes soonpop { 0% { opacity: 0; transform: translateX(-8px); } 15% { opacity: 1; transform: none; } 80% { opacity: 1; } 100% { opacity: 0; } }
.app__qr { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.qr { position: relative; width: 168px; height: 168px; display: grid; place-items: center; text-align: center; font-size: 12px; color: var(--text-3); line-height: 1.5;
  border: 1px dashed var(--line-2); border-radius: 10px; background: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.015) 0 6px, transparent 6px 12px); }
.qr__corner { position: absolute; width: 16px; height: 16px; border: 0 solid var(--cyan); }
.qr__corner--tl { top: -1px; left: -1px; border-top-width: 2px; border-left-width: 2px; }
.qr__corner--tr { top: -1px; right: -1px; border-top-width: 2px; border-right-width: 2px; }
.qr__corner--bl { bottom: -1px; left: -1px; border-bottom-width: 2px; border-left-width: 2px; }
.qr__corner--br { bottom: -1px; right: -1px; border-bottom-width: 2px; border-right-width: 2px; }
.app__qr > p { font-size: 11px; color: var(--text-3); letter-spacing: 0.08em; }

/* ========================================================================== */
/* 09 · 页脚                                                                    */
/* ========================================================================== */
.colophon { padding: clamp(60px, 8vw, 100px) 0 40px; background: #060910; border-top: 1px solid var(--line); }
.credits { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 30px; align-items: flex-start; }
.credits__brand { display: flex; align-items: center; gap: 14px; }
.credits__logo { width: 34px; height: 34px; object-fit: contain; }
.credits__brand strong { display: block; font-size: 15px; }
.credits__brand span { font-size: 11px; color: var(--text-3); }
.credits__roll { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 34px; font-size: 11px; }
.credits__roll div { display: flex; gap: 10px; }
.credits__roll dt { color: var(--text-3); min-width: 44px; }
.credits__roll dd { margin: 0; color: var(--text-2); }

.fcols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 8px; }
.fcol { display: flex; flex-direction: column; gap: 10px; }
.fcol h5 { font-size: 11px; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 4px; }
.fcol a, .copybtn { font-size: 13px; color: var(--text-2); text-align: left; transition: color 0.2s; width: fit-content; }
.fcol a:hover, .copybtn:hover { color: var(--cyan); }
.copybtn [data-copy-fb] { color: var(--cyan); font-size: 10px; margin-left: 4px; }

.nameplate { margin-top: 40px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 8px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; font-size: 11px; color: var(--text-3); background: rgba(255, 255, 255, 0.012); }
.nameplate__on { display: inline-flex; align-items: center; gap: 8px; color: var(--text-2); }
.nameplate__on .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--steel-hi); transition: background 0.4s, box-shadow 0.4s; }
.nameplate__on .dot.on { background: #2bd576; box-shadow: 0 0 10px #2bd576; }
.disclaimer { margin-top: 22px; font-size: 11.5px; color: var(--text-3); line-height: 1.7; max-width: 78ch; }
.copyright { margin-top: 14px; font-size: 11px; color: var(--text-3); }

/* ========================================================================== */
/* 放映机(声音开关)                                                           */
/* ========================================================================== */
.projector {
  position: fixed; right: calc(18px + env(safe-area-inset-right)); bottom: calc(18px + env(safe-area-inset-bottom)); z-index: 85;
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 12px;
  border: 1px solid var(--line-2); border-radius: 999px; background: rgba(10, 14, 23, 0.7);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); font-size: 10px; color: var(--text-2);
  transition: border-color 0.2s, color 0.2s;
}
.projector:hover { border-color: var(--cyan); color: #fff; }
.projector__ico { width: 12px; height: 12px; border: 1.5px solid currentColor; border-radius: 2px; position: relative; }
.projector__ico::after { content: ''; position: absolute; right: -6px; top: 50%; transform: translateY(-50%); border-style: solid; border-width: 4px 0 4px 5px; border-color: transparent transparent transparent currentColor; }
.projector.is-loud { color: var(--cyan); border-color: var(--cyan); }

/* ========================================================================== */
/* 响应式                                                                       */
/* ========================================================================== */
@media (max-width: 1000px) {
  .nav { display: none; }
  .burger { display: flex; }
  .hud { display: none; }
  .hero__inner { grid-template-columns: 1fr; gap: 30px; }
  .hero__stage { order: 2; }
  .hero__copy { order: 1; }
  .floor__grid, .eco__grid, .offer__grid, .app__grid { grid-template-columns: 1fr; }
  .eco__stage, .app__qr { order: 2; }
  .terminal { position: static; }
  .specbar { grid-template-columns: 1fr 1fr; }
  .kpi:nth-child(2) { border-right: none; }
  .kpi:nth-child(1), .kpi:nth-child(2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 640px) {
  :root { --pad: 20px; }
  body { font-size: 15px; }
  .brand__meta { display: none; }
  .specbar { grid-template-columns: 1fr; }
  .kpi { border-right: none; border-bottom: 1px solid var(--line); }
  .kpi:last-child { border-bottom: none; }
  .kpi__cap { opacity: 1; transform: none; } /* 手机无 hover,直接显示口径 */
  .caps { grid-template-columns: 1fr; }
  .credits__roll { grid-template-columns: 1fr; }
  .fcols { grid-template-columns: 1fr 1fr; gap: 22px 18px; }
  .fcol { gap: 4px; }
  .fcol a, .fcol .copybtn { padding: 9px 0; width: auto; } /* 触达≥40px */
  .monitor--wide { aspect-ratio: 4 / 3; }
  .wild__cap { position: static; margin-top: 16px; max-width: none; }
  .monitor--live .monitor__video, .monitor--live::after { -webkit-mask-image: none; mask-image: none; }
  .monitor--live::after { background: linear-gradient(0deg, rgba(10, 14, 23, 0.4), transparent 45%); }
  .monitor--live .monitor__spec { display: none; }
  .scrolldown { display: none; }
  .projector { right: calc(12px + env(safe-area-inset-right)); bottom: calc(12px + env(safe-area-inset-bottom)); }
}

/* 触屏/无 hover 设备:视频控制条常显 + 加大触达(hover 版本触屏不可达) */
@media (hover: none), (pointer: coarse) {
  .monitor.is-playing .monitor__ctrl { opacity: 1; transform: none; }
  .monitor__ctrl button { min-width: 40px; min-height: 40px; display: inline-flex; align-items: center; justify-content: center; padding: 0 8px; }
}

/* ========================================================================== */
/* 降级:尊重减弱动态                                                           */
/* ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .reveal { opacity: 1; transform: none; }
  .split-char { opacity: 1; transform: none; }
  .keywords li { opacity: 1; transform: none; }
  .caliper b { transform: scaleX(1); }
  .terminal.in .steps::after { height: calc(100% - 54px); }
  .monitor--wide .monitor__video { transform: none; }
  .scan { display: none; }
  .ticker.is-run .ticker__track { animation: none; }
}