/* =========================================================
   Flowness Pitch — 简约大气 / minimal-premium
   ========================================================= */

:root {
  --ink:        #0c0d10;
  --ink-2:      #3a3d46;
  --muted:      #6b6f7a;
  --faint:      #9aa0ab;
  --line:       rgba(12, 13, 16, 0.08);
  --line-2:     rgba(12, 13, 16, 0.14);
  --bg:         #ffffff;
  --bg-soft:    #fafafb;
  --bg-tint:    #f6f7fb;

  --accent:     #4f46e5;
  --accent-2:   #6366f1;
  --accent-3:   #818cf8;
  --accent-bg:  #eef0fe;
  --accent-ink: #3730a3;

  --ok:   #16a34a;  --ok-bg:  #eafaf0;
  --warn: #d97706;  --warn-bg:#fdf4e7;
  --err:  #dc2626;  --err-bg: #fdeeee;

  --sans:    'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  --display: 'Space Grotesk', 'Inter', -apple-system, 'PingFang SC', system-ui, sans-serif;
  --mono:    'JetBrains Mono', ui-monospace, Menlo, monospace;

  --maxw: 1120px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.011em;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg-tint);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 6px;
  color: var(--accent-ink);
}
.grad {
  background: linear-gradient(100deg, var(--accent), var(--accent-3));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ---------- 通用容器 / 区块 ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }
.wrap-narrow { max-width: 820px; }
.section { padding: 128px 0; position: relative; }

.section-head { max-width: 720px; margin-bottom: 64px; }
.section-index {
  display: inline-block;
  font: 500 12.5px/1 var(--mono);
  letter-spacing: 0.06em;
  color: var(--accent);
  padding: 6px 12px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  margin-bottom: 22px;
}
.section-index.center { display: block; width: fit-content; margin: 0 auto 22px; }
.section-title {
  font: 700 clamp(28px, 3.6vw, 44px)/1.14 var(--display);
  letter-spacing: -0.02em;
}
.section-desc {
  margin-top: 18px;
  font-size: 17px;
  color: var(--muted);
  max-width: 620px;
}

/* ---------- 滚动进度 ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-3));
  z-index: 200;
  transition: width 0.1s linear;
}

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 150;
  height: 64px;
  display: flex; align-items: center; gap: 28px;
  padding: 0 32px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav-brand { display: flex; align-items: center; gap: 9px; font: 700 17px/1 var(--display); }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 2px 10px rgba(79, 70, 229, 0.35);
}
.brand-mark.sm { width: 22px; height: 22px; border-radius: 6px; box-shadow: none; }
.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a {
  font-size: 14px; color: var(--muted); font-weight: 500;
  transition: color 0.2s; position: relative;
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  font-size: 13.5px; font-weight: 600; color: #fff;
  background: var(--ink); padding: 9px 16px; border-radius: 9px;
  transition: transform 0.2s var(--ease), background 0.2s;
}
.nav-cta:hover { background: var(--accent); transform: translateY(-1px); }

/* ---------- HERO ---------- */
.hero {
  position: relative; min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 120px 32px 80px;
  overflow: hidden;
  background: radial-gradient(120% 80% at 50% -10%, var(--bg-tint), var(--bg) 60%);
}
.hero-flow { position: absolute; inset: 0; z-index: 0; opacity: 0.9; }
.hero-flow svg { width: 100%; height: 100%; }
.flow-lines path { stroke-dasharray: 6 10; animation: dashmove 18s linear infinite; }
@keyframes dashmove { to { stroke-dashoffset: -320; } }

.hero-inner { position: relative; z-index: 1; max-width: 880px; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 13px; color: var(--muted); font-weight: 500;
  background: rgba(255,255,255,0.7); border: 1px solid var(--line);
  padding: 8px 15px; border-radius: 999px; margin-bottom: 30px;
  backdrop-filter: blur(8px);
}
.hero-eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-bg); animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:.4;} }
.hero-title {
  font: 800 clamp(38px, 6.4vw, 76px)/1.06 var(--display);
  letter-spacing: -0.035em;
}
.hero-sub {
  margin: 28px auto 0; max-width: 620px;
  font-size: 18px; color: var(--muted); line-height: 1.66;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; margin-top: 40px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 15px; font-weight: 600; padding: 13px 24px; border-radius: 12px;
  transition: transform 0.2s var(--ease), box-shadow 0.2s, background 0.2s;
}
.btn-primary { background: var(--ink); color: #fff; box-shadow: 0 6px 20px rgba(12,13,16,0.16); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(12,13,16,0.24); }
.btn-primary .arr { transition: transform 0.25s var(--ease); }
.btn-primary:hover .arr { transform: translateY(3px); }
.btn-ghost { border: 1px solid var(--line-2); color: var(--ink); }
.btn-ghost:hover { background: var(--bg-soft); transform: translateY(-2px); }

.hero-meta {
  display: flex; align-items: center; justify-content: center; gap: 26px;
  margin-top: 58px; flex-wrap: wrap;
}
.hero-meta > div:not(.sep) { display: flex; flex-direction: column; gap: 3px; }
.hero-meta b { font: 700 17px/1 var(--display); }
.hero-meta span { font-size: 12.5px; color: var(--faint); }
.hero-meta .sep { width: 1px; height: 30px; background: var(--line-2); }
.hero-scrollhint {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  font: 500 11px/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--faint);
}
.hero-scrollhint::after {
  content: ''; display: block; width: 1px; height: 26px; margin: 10px auto 0;
  background: linear-gradient(var(--faint), transparent);
  animation: hint 1.8s ease-in-out infinite;
}
@keyframes hint { 0%,100%{transform:scaleY(.5);opacity:.4;} 50%{transform:scaleY(1);opacity:1;} }

/* ---------- HOOK ---------- */
.hook { padding: 150px 0; background: var(--ink); color: #fff; text-align: center; }
.hook-kicker { font-size: 14px; color: rgba(255,255,255,0.5); letter-spacing: 0.02em; margin-bottom: 34px; }
.hook-line { font: 700 clamp(30px, 5vw, 62px)/1.15 var(--display); letter-spacing: -0.03em; }
.hook-line-2 { margin-top: 8px; }
.strike { position: relative; color: rgba(255,255,255,0.55); }
.strike::after {
  content: ''; position: absolute; left: -2%; right: -2%; top: 54%; height: 3px;
  background: var(--accent-3); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform 0.7s var(--ease);
}
.hook-line.in .strike::after { transform: scaleX(1); }
.hook-note { max-width: 560px; margin: 40px auto 0; font-size: 17px; color: rgba(255,255,255,0.62); line-height: 1.7; }

/* ---------- PAIN ---------- */
.pain { background: var(--bg-soft); }
.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.pain-card {
  background: var(--bg); border: 1px solid var(--line); border-radius: 18px;
  padding: 32px 28px 26px; position: relative; overflow: hidden;
  transition: transform 0.3s var(--ease), box-shadow 0.3s, border-color 0.3s;
}
.pain-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(12,13,16,0.08); border-color: var(--line-2); }
.pain-num { font: 700 13px/1 var(--mono); color: var(--accent); margin-bottom: 20px; letter-spacing: 0.05em; }
.pain-card h3 { font: 700 20px/1.3 var(--display); letter-spacing: -0.01em; margin-bottom: 12px; }
.pain-card p { font-size: 14.5px; color: var(--muted); line-height: 1.66; }
.pain-tag {
  display: inline-block; margin-top: 22px; font: 500 12px/1 var(--mono);
  color: var(--muted); background: var(--bg-tint); border: 1px solid var(--line);
  padding: 6px 11px; border-radius: 7px;
}

/* ---------- INSIGHT ---------- */
.insight { text-align: center; }
.insight-line {
  font: 700 clamp(28px, 4.4vw, 52px)/1.24 var(--display);
  letter-spacing: -0.025em; margin-bottom: 8px;
}
.insight-line .u {
  background-image: linear-gradient(transparent 62%, var(--accent-bg) 62%);
}
.insight-note {
  margin: 34px auto 0; max-width: 660px; font-size: 17.5px; color: var(--muted); line-height: 1.72;
}
.insight-note b { color: var(--ink); font-weight: 600; }
.insight-switch {
  display: flex; align-items: stretch; justify-content: center; gap: 0;
  margin: 56px auto 0; max-width: 680px;
}
.switch-side {
  flex: 1; padding: 28px 24px; border: 1px solid var(--line); border-radius: 16px;
  background: var(--bg-soft); display: flex; flex-direction: column; gap: 8px;
}
.switch-side.after { border-color: var(--accent-2); background: linear-gradient(180deg, var(--accent-bg), var(--bg)); }
.switch-label { font: 500 12px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); }
.switch-side.after .switch-label { color: var(--accent); }
.switch-side p { font: 700 24px/1.2 var(--display); }
.switch-sub { font-size: 12.5px; color: var(--muted); }
.switch-arrow { display: grid; place-items: center; padding: 0 22px; font-size: 24px; color: var(--accent); }

/* ---------- SOLUTION / layers ---------- */
.layers { display: grid; gap: 16px; margin-bottom: 80px; }
.layer {
  display: grid; grid-template-columns: 120px 1fr auto; align-items: center; gap: 28px;
  padding: 26px 30px; border: 1px solid var(--line); border-radius: 16px; background: var(--bg);
  transition: border-color 0.3s, box-shadow 0.3s;
}
.layer:hover { border-color: var(--line-2); box-shadow: 0 12px 30px rgba(12,13,16,0.06); }
.layer-tag { font: 600 13px/1 var(--mono); color: var(--accent); letter-spacing: 0.04em; }
.layer-body h3 { font: 700 19px/1.3 var(--display); margin-bottom: 6px; }
.layer-body p { font-size: 14.5px; color: var(--muted); }
.layer-chips { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; max-width: 320px; }
.layer-chips span {
  font: 500 12px/1 var(--mono); color: var(--ink-2);
  background: var(--bg-tint); border: 1px solid var(--line); padding: 6px 10px; border-radius: 7px;
}

/* ---------- lifecycle flow ---------- */
.lifecycle {
  border: 1px solid var(--line); border-radius: 22px; padding: 44px 40px;
  background: linear-gradient(180deg, var(--bg-soft), var(--bg));
}
.lifecycle-head { text-align: center; max-width: 640px; margin: 0 auto 42px; }
.lifecycle-head h3 { font: 700 24px/1.2 var(--display); margin-bottom: 10px; }
.lifecycle-head p { font-size: 15px; color: var(--muted); }
.flow-track { display: flex; align-items: stretch; }
.flow-node {
  flex: 1; text-align: center; padding: 22px 12px 18px; border-radius: 16px;
  border: 1px solid transparent; transition: all 0.3s var(--ease); background: transparent;
}
.flow-node:hover { background: var(--bg); border-color: var(--line); transform: translateY(-3px); box-shadow: 0 12px 28px rgba(12,13,16,0.07); }
.flow-node.current { background: var(--bg); border-color: var(--accent-2); box-shadow: 0 12px 32px rgba(79,70,229,0.14); }
.flow-dot {
  width: 46px; height: 46px; margin: 0 auto 14px; border-radius: 50%;
  display: grid; place-items: center; background: var(--bg); border: 1.5px solid var(--line-2);
  font: 700 16px/1 var(--display); color: var(--muted);
}
.flow-node.current .flow-dot { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border-color: transparent; color: #fff; box-shadow: 0 4px 14px rgba(79,70,229,0.4); }
.flow-name { font: 700 17px/1 var(--display); }
.flow-cn { font-size: 12.5px; color: var(--muted); margin-top: 4px; margin-bottom: 14px; }
.flow-node ul { list-style: none; display: flex; flex-direction: column; gap: 6px; align-items: center; }
.flow-node ul li {
  font: 500 12px/1 var(--mono); color: var(--ink-2);
  background: var(--bg-tint); border: 1px solid var(--line); padding: 5px 10px; border-radius: 6px;
}
.flow-node ul li.gate { color: var(--accent); background: var(--accent-bg); border-color: transparent; }
.flow-link {
  width: 34px; align-self: center; height: 2px; flex-shrink: 0;
  background: linear-gradient(90deg, var(--line-2), var(--accent-3));
  position: relative; margin: 0 -2px;
}
.flow-link::after {
  content: ''; position: absolute; right: -1px; top: 50%; transform: translateY(-50%);
  border: 4px solid transparent; border-left-color: var(--accent-3);
}
.flow-legend { display: flex; gap: 22px; justify-content: center; margin-top: 34px; flex-wrap: wrap; }
.flow-legend span { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--muted); }
.flow-legend i { width: 11px; height: 11px; border-radius: 3px; display: inline-block; }
.lg-out { background: var(--bg-tint); border: 1px solid var(--line-2); }
.lg-ev { background: var(--bg-tint); border: 1px solid var(--line-2); }
.lg-gate { background: var(--accent-bg); border: 1px solid var(--accent-3); }
.lg-cur { background: var(--accent); }

/* ---------- INNOVATION ---------- */
.inno-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.inno-card {
  padding: 34px 30px; border: 1px solid var(--line); border-radius: 18px; background: var(--bg);
  transition: transform 0.3s var(--ease), box-shadow 0.3s, border-color 0.3s;
}
.inno-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(12,13,16,0.08); border-color: var(--line-2); }
.inno-icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  color: var(--accent); background: var(--accent-bg); margin-bottom: 22px;
}
.inno-card h3 { font: 700 20px/1.3 var(--display); margin-bottom: 12px; }
.inno-card p { font-size: 14.5px; color: var(--muted); line-height: 1.68; }

/* ---------- ARCHITECTURE ---------- */
.architecture { background: var(--bg-soft); }
.arch {
  border: 1px solid var(--line); border-radius: 22px; background: var(--bg);
  padding: 40px; display: flex; flex-direction: column;
}
.arch-row { display: grid; grid-template-columns: 190px 1fr; gap: 26px; align-items: center; }
.arch-rowlabel {
  font: 700 15px/1.3 var(--display); display: flex; flex-direction: column; gap: 3px;
}
.arch-rowlabel span { font: 500 12px/1.2 var(--mono); color: var(--faint); }
.arch-rowlabel.accent { color: var(--accent); }
.arch-rowlabel.accent span { color: var(--accent-3); }
.arch-rowlabel.muted { color: var(--muted); }
.arch-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.arch-chip {
  border: 1px solid var(--line-2); border-radius: 12px; padding: 15px 16px; background: var(--bg);
  font: 700 14.5px/1.2 var(--display); display: flex; flex-direction: column; gap: 5px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s;
}
.arch-chip:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(12,13,16,0.07); }
.arch-chip em { font: 500 11.5px/1 var(--mono); color: var(--muted); font-style: normal; }
.arch-chip.lite { background: var(--bg-tint); font-weight: 600; font-size: 13.5px; align-items: flex-start; justify-content: center; }
.arch-chip.ghost { background: transparent; border-style: dashed; color: var(--muted); font-weight: 600; font-size: 13.5px; justify-content: center; }
.arch-flow { display: flex; justify-content: center; gap: 90px; height: 30px; margin-left: 216px; }
.arch-flow span {
  width: 1.5px; background: linear-gradient(var(--accent-3), var(--line-2));
  position: relative;
}
.arch-flow.dashed span { background: none; border-left: 1.5px dashed var(--line-2); width: 0; }
.arch-core {
  border: 1.5px solid var(--accent-2); border-radius: 16px; padding: 20px 22px;
  background: linear-gradient(180deg, var(--accent-bg), var(--bg));
  box-shadow: 0 10px 30px rgba(79,70,229,0.12);
}
.core-tag { font: 600 12px/1 var(--mono); color: var(--accent); margin-bottom: 16px; letter-spacing: 0.04em; }
.core-cells { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.core-cell {
  background: var(--bg); border: 1px solid var(--line); border-radius: 11px; padding: 13px 14px;
  font-size: 12.5px; color: var(--muted); display: flex; flex-direction: column; gap: 5px;
}
.core-cell b { font: 700 14px/1 var(--display); color: var(--ink); }
.arch-caption {
  margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--line);
  font-size: 14.5px; color: var(--muted); line-height: 1.7;
}
.arch-caption b { color: var(--ink); }

/* ---------- PRODUCT window ---------- */
.demo-cta { margin-top: 26px; display: flex; gap: 12px; flex-wrap: wrap; }
.demo-cta .play { font-size: 11px; }
.window {
  border: 1px solid var(--line-2); border-radius: 18px; overflow: hidden;
  background: var(--bg); box-shadow: 0 30px 80px rgba(12,13,16,0.14);
  position: relative; display: block;
}
.window-link { cursor: pointer; transition: transform 0.35s var(--ease), box-shadow 0.35s; }
.window-link:hover { transform: translateY(-4px); box-shadow: 0 44px 100px rgba(12,13,16,0.2); }
.win-hint {
  position: absolute; z-index: 6; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0.96);
  display: inline-flex; align-items: center; gap: 9px;
  background: rgba(12,13,16,0.86); color: #fff; font-size: 14px; font-weight: 600;
  padding: 13px 22px; border-radius: 999px; backdrop-filter: blur(6px);
  opacity: 0; transition: opacity 0.3s, transform 0.3s var(--ease); pointer-events: none;
  box-shadow: 0 12px 34px rgba(12,13,16,0.3);
}
.win-hint span {
  width: 26px; height: 26px; border-radius: 50%; background: var(--accent);
  display: grid; place-items: center; font-size: 11px;
}
.window-link::after {
  content: ''; position: absolute; inset: 0; z-index: 5; background: rgba(255,255,255,0);
  transition: background 0.3s; pointer-events: none;
}
.window-link:hover::after { background: rgba(246,247,251,0.34); }
.window-link:hover .win-hint { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.win-bar {
  height: 44px; display: flex; align-items: center; gap: 8px; padding: 0 18px;
  background: var(--bg-tint); border-bottom: 1px solid var(--line);
}
.win-dot { width: 11px; height: 11px; border-radius: 50%; }
.win-dot.r { background: #ff5f57; } .win-dot.y { background: #febc2e; } .win-dot.g { background: #28c840; }
.win-url {
  margin-left: 14px; font: 500 12.5px/1 var(--mono); color: var(--muted);
  background: var(--bg); border: 1px solid var(--line); border-radius: 7px; padding: 6px 14px;
}
.win-body { display: grid; grid-template-columns: 200px 1fr; min-height: 520px; }

.app-side { background: #0f1014; color: rgba(255,255,255,0.8); padding: 20px 14px; display: flex; flex-direction: column; }
.app-brand { display: flex; align-items: center; gap: 8px; font: 700 15px/1 var(--display); color: #fff; padding: 4px 8px 20px; }
.app-brand .brand-mark.sm { background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.app-nav { display: flex; flex-direction: column; gap: 3px; }
.app-nav .ai {
  font-size: 13.5px; padding: 9px 12px; border-radius: 8px; color: rgba(255,255,255,0.6);
  transition: background 0.2s, color 0.2s;
}
.app-nav .ai.active { background: rgba(255,255,255,0.1); color: #fff; font-weight: 600; }
.app-side-foot { margin-top: auto; padding-top: 18px; border-top: 1px solid rgba(255,255,255,0.1); display: flex; flex-direction: column; gap: 10px; }
.side-agent { display: flex; align-items: center; gap: 8px; font: 500 12px/1 var(--mono); color: rgba(255,255,255,0.65); }
.side-agent .d { width: 7px; height: 7px; border-radius: 50%; }
.side-agent .d.ok { background: #34d399; box-shadow: 0 0 8px #34d39980; }
.side-agent .d.idle { background: rgba(255,255,255,0.28); }

.app-main { padding: 22px 26px; background: var(--bg); display: flex; flex-direction: column; gap: 18px; }
.app-top { display: flex; align-items: center; justify-content: space-between; }
.app-crumb { font-size: 13px; color: var(--muted); }
.app-crumb i { opacity: 0.4; margin: 0 4px; font-style: normal; }
.app-crumb b { color: var(--ink); font-weight: 600; }
.app-pill {
  font: 600 12px/1 var(--mono); padding: 6px 11px; border-radius: 999px;
  display: inline-flex; align-items: center; gap: 6px;
}
.app-pill::before { content:''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.app-pill.warn { background: var(--warn-bg); color: var(--warn); }

.app-alert {
  display: flex; align-items: center; gap: 14px;
  background: var(--err-bg); border: 1px solid #f6cccc; border-radius: 14px; padding: 16px 18px;
}
.al-ico { width: 34px; height: 34px; border-radius: 10px; background: #f7d3d3; color: var(--err); display: grid; place-items: center; font-weight: 800; flex-shrink: 0; }
.al-txt { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.al-txt b { font-size: 14px; }
.al-txt span { font-size: 12.5px; color: var(--muted); }
.app-btn { font-size: 13px; font-weight: 600; padding: 9px 15px; border-radius: 9px; border: 1px solid var(--line-2); background: var(--bg); }
.app-btn.primary { background: var(--ink); color: #fff; border-color: transparent; }

.app-phases { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.ph {
  border: 1px solid var(--line); border-radius: 11px; padding: 12px 12px; background: var(--bg-soft);
  display: flex; flex-direction: column; gap: 6px; font: 600 13px/1 var(--display);
}
.ph .ph-n { width: 22px; height: 22px; border-radius: 50%; background: var(--bg); border: 1px solid var(--line-2); display: grid; place-items: center; font: 700 11px/1 var(--mono); color: var(--muted); }
.ph em { font: 500 11px/1 var(--mono); font-style: normal; color: var(--muted); }
.ph.done { background: var(--ok-bg); border-color: #cbeed7; }
.ph.done .ph-n { background: var(--ok); color: #fff; border-color: transparent; }
.ph.done em { color: var(--ok); }
.ph.active { background: var(--warn-bg); border-color: #f2d9ac; }
.ph.active .ph-n { background: var(--warn); color: #fff; border-color: transparent; }
.ph.active em { color: var(--warn); }

.app-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.app-card { border: 1px solid var(--line); border-radius: 14px; padding: 18px; background: var(--bg); }
.app-card.gate { border-color: #f2d9ac; }
.ac-title { font: 700 13.5px/1 var(--display); margin-bottom: 14px; }
.gatelist, .filelist { list-style: none; display: flex; flex-direction: column; }
.gatelist li { display: flex; align-items: center; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.gatelist li:last-child { border-bottom: 0; }
.gatelist li span { width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; font-size: 11px; font-weight: 700; flex-shrink: 0; }
.gatelist li.pass span { background: var(--ok-bg); color: var(--ok); }
.gatelist li.fail span { background: var(--err-bg); color: var(--err); }
.gatelist li.wait span { background: var(--bg-tint); color: var(--faint); }
.gatelist li em { font-style: normal; margin-left: auto; font: 500 11.5px/1 var(--mono); color: var(--err); }

.filelist li { display: flex; align-items: center; gap: 11px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.filelist li:last-child { border-bottom: 0; }
.fi { width: 26px; height: 26px; border-radius: 7px; display: grid; place-items: center; font: 700 9.5px/1 var(--mono); flex-shrink: 0; }
.fi.md { background: #eaf0fe; color: #3b5bce; }
.fi.tr { background: #eafaf0; color: #16a34a; }
.fi.js { background: #f0ecfe; color: #6d4bce; }
.fi.rm { background: var(--bg-tint); color: var(--muted); }
.filelist li em { font-style: normal; margin-left: auto; font: 500 11.5px/1 var(--mono); }
.filelist li em.ok { color: var(--ok); }
.filelist li em.err { color: var(--err); }
.filelist li em.idle { color: var(--faint); }

.product-note { text-align: center; margin: 42px auto 0; max-width: 620px; font-size: 17px; color: var(--muted); }
.product-note b { color: var(--ink); }

/* ---------- VALUE ---------- */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 64px; }
.value-col { padding: 30px 28px; border-radius: 16px; border: 1px solid var(--line); background: var(--bg-soft); }
.vc-role {
  display: inline-block; font: 700 14px/1 var(--display); color: var(--accent);
  padding-bottom: 14px; margin-bottom: 14px; border-bottom: 1px solid var(--line); width: 100%;
}
.value-col p { font-size: 15px; color: var(--muted); line-height: 1.7; }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; padding: 42px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metric { text-align: center; }
.metric b { font: 800 clamp(34px, 4vw, 50px)/1 var(--display); letter-spacing: -0.03em; background: linear-gradient(135deg, var(--accent), var(--accent-3)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.metric span { display: block; margin-top: 12px; font-size: 13px; color: var(--muted); line-height: 1.5; }
.value-foot { margin-top: 40px; font-size: 14px; color: var(--faint); line-height: 1.7; max-width: 820px; }

/* ---------- CLOSING ---------- */
.closing { position: relative; background: var(--ink); color: #fff; padding: 140px 0 100px; text-align: center; overflow: hidden; }
.closing-flow { position: absolute; inset: 0; opacity: 0.5; }
.closing-flow svg { width: 100%; height: 100%; }
.closing-inner { position: relative; z-index: 1; }
.closing-title { font: 800 clamp(30px, 4.6vw, 58px)/1.14 var(--display); letter-spacing: -0.03em; }
.closing-slogan { margin-top: 26px; font: 500 20px/1.5 var(--display); color: var(--accent-3); }
.team { margin-top: 70px; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.team-name { font: 700 16px/1 var(--display); }
.team-people { display: flex; align-items: center; gap: 14px; font-size: 14px; color: rgba(255,255,255,0.7); flex-wrap: wrap; justify-content: center; }
.team-people i { width: 4px; height: 4px; border-radius: 50%; background: rgba(255,255,255,0.3); }
.team-org { font: 500 13px/1 var(--mono); color: rgba(255,255,255,0.45); margin-top: 4px; }

/* ---------- reveal 动效 ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 截图模式 ---------- */
.shot-mode .hero { min-height: auto; padding-top: 150px; padding-bottom: 120px; }

/* ---------- 响应式 ---------- */
@media (max-width: 940px) {
  .pain-grid, .inno-grid, .value-grid, .metrics { grid-template-columns: 1fr 1fr; }
  .arch-row { grid-template-columns: 1fr; gap: 12px; }
  .arch-cards, .core-cells { grid-template-columns: 1fr 1fr; }
  .arch-flow { margin-left: 0; }
  .layer { grid-template-columns: 1fr; gap: 14px; text-align: left; }
  .layer-chips { justify-content: flex-start; max-width: none; }
  .flow-track { flex-direction: column; gap: 10px; }
  .flow-link { width: 2px; height: 26px; margin: 0 auto; background: linear-gradient(180deg, var(--line-2), var(--accent-3)); }
  .flow-link::after { right: auto; left: 50%; top: auto; bottom: -1px; transform: translateX(-50%); border-left-color: transparent; border-top-color: var(--accent-3); }
  .win-body { grid-template-columns: 1fr; }
  .app-side { flex-direction: row; align-items: center; overflow-x: auto; }
  .app-nav { flex-direction: row; }
  .app-side-foot { display: none; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .section { padding: 88px 0; }
  .wrap { padding: 0 20px; }
  .pain-grid, .inno-grid, .value-grid, .metrics { grid-template-columns: 1fr; }
  .app-cards { grid-template-columns: 1fr; }
  .insight-switch { flex-direction: column; }
  .switch-arrow { transform: rotate(90deg); padding: 14px 0; }
  .hero-meta .sep { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}