/* TravelAgentOS 系统官网样式
   ------------------------------------------------------------------
   设计语言：暗色首屏 + 近白画布 + 白面板大圆角 + 近黑主操作 + 青柠点缀。
   全部视觉元素用 CSS 绘制（无外部图片依赖）；深浅两套表面在同一页面交替形成节奏。
   ------------------------------------------------------------------ */

:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --border: #eceef2;
  --border-strong: #e0e4ea;
  --text: #111417;
  --muted: #5c646e;
  --muted-soft: #666e78;
  --ink: #16191c;
  --ink-deep: #0c0e11;
  --ink-raise: #1a1e23;
  --accent: #c6f24e;
  --accent-deep: #7cb518;
  --accent-soft: #f4fbd9;
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 22px;
  --shadow-card: 0 1px 2px rgba(17, 20, 23, 0.04), 0 10px 28px -22px rgba(17, 20, 23, 0.14);
  --shadow-hover: 0 2px 8px rgba(17, 20, 23, 0.06), 0 20px 40px -22px rgba(17, 20, 23, 0.2);
  --shadow-float: 0 30px 70px -40px rgba(0, 0, 0, 0.6);
  --max: 1180px;
}

* { box-sizing: border-box; }
html, body { overflow-x: clip; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 { margin: 0; letter-spacing: -0.03em; line-height: 1.16; }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; }
li { list-style: none; }
a { color: inherit; text-decoration: none; }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 0 0 var(--radius-sm) 0;
  background: var(--ink);
  color: #fff;
}
.skip:focus { left: 0; }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  padding: 0 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-size: 13.5px;
  font-weight: 550;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color .16s ease, border-color .16s ease, color .16s ease, box-shadow .16s ease, transform .16s ease;
}
.btn-lg { height: 48px; padding: 0 26px; font-size: 14.5px; border-radius: 12px; }
.btn:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }
.btn-primary { background: var(--ink); color: #fff; box-shadow: 0 4px 14px -6px rgba(17, 20, 23, .5); }
.btn-primary:hover { background: #2b3036; transform: translateY(-1px); }
.btn-ghost { background: var(--card); border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--bg); border-color: var(--border-strong); }
.btn-lime { background: var(--accent); color: var(--ink); box-shadow: 0 8px 24px -12px rgba(198, 242, 78, .8); }
.btn-lime:hover { background: #d5fa6d; transform: translateY(-1px); }
.btn-ghost-dark { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.22); color: #fff; }
.btn-ghost-dark:hover { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.38); }

/* ---------------- 顶部导航 ---------------- */
.nav { position: sticky; top: 0; z-index: 60; padding: 12px 16px 0; }
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 0 18px;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 1px 2px rgba(17,20,23,.04), 0 12px 30px -24px rgba(17,20,23,.2);
}
.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand-mark {
  width: 30px; height: 30px;
  border-radius: 9px;
  display: grid; place-items: center;
  background: var(--ink); color: #fff;
  font-size: 12px; font-weight: 700; letter-spacing: -.02em;
}
.brand-copy { display: flex; flex-direction: column; line-height: 1.15; }
.brand-copy strong { font-size: 13.5px; font-weight: 650; letter-spacing: -.02em; }
.brand-copy small { font-size: 10.5px; color: var(--muted); }
.nav-links { display: flex; align-items: center; gap: 2px; flex: 1; }
.nav-links a {
  padding: 8px 13px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--muted);
  transition: background-color .15s ease, color .15s ease;
}
.nav-links a:hover { background: var(--bg); color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 8px; flex: none; }

/* ---------------- 首屏（暗色） ---------------- */
.hero-wrap { padding: 16px 16px 0; }
.hero {
  position: relative;
  overflow: hidden;
  max-width: var(--max);
  margin: 0 auto;
  border-radius: 28px;
  background: radial-gradient(120% 120% at 12% 0%, #1c2127 0%, #12161a 46%, #0b0d10 100%);
  border: 1px solid rgba(255, 255, 255, .07);
  box-shadow: 0 40px 90px -60px rgba(0, 0, 0, .8);
  padding: 56px 52px 0;
  color: #fff;
}
.hero-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 30% 10%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 30% 10%, #000 20%, transparent 78%);
}
.hero-glow {
  position: absolute;
  right: -140px; top: -180px;
  width: 560px; height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(198,242,78,.34) 0%, rgba(198,242,78,.06) 45%, rgba(198,242,78,0) 70%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: 48px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(198, 242, 78, .32);
  background: rgba(198, 242, 78, .1);
  color: #e2ff9a;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .01em;
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; flex: none; }
.hero h1 {
  margin-top: 22px;
  font-size: 60px;
  line-height: 1.06;
  font-weight: 700;
  letter-spacing: -.045em;
}
.hero h1 .hl {
  background: linear-gradient(180deg, transparent 58%, rgba(198,242,78,.92) 58%);
  padding: 0 4px;
  color: #fff;
}
.hero-copy > p {
  margin-top: 20px;
  max-width: 470px;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(255, 255, 255, .68);
}
.hero-cta { display: flex; gap: 10px; margin-top: 30px; flex-wrap: wrap; }
.hero-points {
  display: flex;
  gap: 22px;
  margin-top: 26px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: rgba(255, 255, 255, .58);
}
.hero-points li { position: relative; padding-left: 20px; }
.hero-points li::before {
  content: "";
  position: absolute;
  left: 0; top: 6px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: inset 0 0 0 3px rgba(12, 14, 17, .55);
}

/* 首屏产品示意（纯 CSS 绘制的界面） */
.hero-visual { position: relative; padding: 10px 0 26px; }
.mock {
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-float);
  color: var(--text);
}
.mock-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  background: #fafbfc;
  border-bottom: 1px solid #eef0f3;
}
.mdot { width: 8px; height: 8px; border-radius: 50%; background: #dfe3e8; display: block; }
.mock-url {
  margin-left: 8px;
  font-size: 10.5px;
  color: var(--muted);
  background: #fff;
  border: 1px solid #eef0f3;
  border-radius: 999px;
  padding: 2px 12px;
}
.mock-pill {
  margin-left: auto;
  font-size: 10px;
  font-weight: 600;
  color: var(--muted);
  background: var(--accent-soft);
  border: 1px solid rgba(198,242,78,.6);
  border-radius: 999px;
  padding: 2px 9px;
}
.mock-body { display: flex; min-height: 0; }
.mock-rail {
  width: 44px;
  flex: none;
  padding: 12px 0;
  background: #fafbfc;
  border-right: 1px solid #eef0f3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
}
.mrail { width: 22px; height: 22px; border-radius: 7px; background: #eceef2; display: block; }
.mrail.is-active { background: var(--ink); }
.mock-main { flex: 1; min-width: 0; padding: 14px; background: #fff; }
.mock-kpis { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.mk {
  border: 1px solid #eef0f3;
  border-radius: 10px;
  padding: 9px 10px 6px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}
.mk small { font-size: 9.5px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mk strong { font-size: 14px; font-weight: 700; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.mspark {
  height: 16px;
  margin-top: 4px;
  background: var(--accent);
  clip-path: polygon(0 88%, 20% 74%, 40% 80%, 60% 46%, 80% 30%, 100% 16%, 100% 100%, 0 100%);
  opacity: .85;
}
.mspark.alt {
  background: var(--accent-deep);
  clip-path: polygon(0 92%, 22% 86%, 44% 62%, 66% 70%, 84% 38%, 100% 26%, 100% 100%, 0 100%);
}
.mbar { height: 5px; margin-top: 8px; border-radius: 999px; background: linear-gradient(90deg, var(--ink) 62%, #eef0f3 62%); }
.mock-table { margin-top: 10px; border: 1px solid #eef0f3; border-radius: 10px; overflow: hidden; }
.mrow {
  display: grid;
  grid-template-columns: 1.45fr 1fr .8fr .75fr;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  border-top: 1px solid #f4f5f7;
}
.mrow.mhead { background: #fafbfc; border-top: 0; font-size: 9.5px; color: var(--muted); }
.mock-wide .mrow { grid-template-columns: 1.4fr 1.3fr .8fr .7fr .5fr; }
.ln { display: block; height: 7px; border-radius: 999px; background: #eef0f3; }
.ln.right { margin-left: auto; }
.w35 { width: 35%; } .w40 { width: 40%; } .w45 { width: 45%; } .w50 { width: 50%; }
.w55 { width: 55%; } .w60 { width: 60%; } .w62 { width: 62%; } .w64 { width: 64%; }
.w65 { width: 65%; } .w70 { width: 70%; }
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 9.5px;
  font-weight: 600;
  white-space: nowrap;
  text-align: center;
}
.tag-blue { background: #eaf1ff; color: #1a4fbf; }
.tag-amber { background: #fff5e6; color: #8a5200; }
.tag-green { background: #ecfdf3; color: #0a6b3d; }

.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 13px;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 22px 46px -26px rgba(0, 0, 0, .75);
  color: var(--text);
}
.float-card div { display: flex; flex-direction: column; line-height: 1.3; }
.float-card strong { font-size: 11.5px; font-weight: 650; }
.float-card small { font-size: 10px; color: var(--muted); }
.fc-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink); flex: none; }
.fc-dot.lime { background: var(--accent-deep); box-shadow: 0 0 0 4px rgba(124, 181, 24, .18); }
.float-a { left: -26px; bottom: 62px; }
.float-b { right: -14px; bottom: -6px; }

.hero-metrics {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin: 48px -52px 0;
  padding: 26px 52px 30px;
  border-top: 1px solid rgba(255, 255, 255, .09);
}
.hero-metrics > div { padding-right: 22px; }
.hero-metrics > div + div { border-left: 1px solid rgba(255, 255, 255, .09); padding-left: 22px; }
.hero-metrics dt { font-size: 15px; font-weight: 650; letter-spacing: -.02em; color: #fff; }
.hero-metrics dd { margin-top: 5px; font-size: 11.5px; line-height: 1.6; color: rgba(255, 255, 255, .52); }

/* ---------------- 区块骨架 ---------------- */
.band { padding: 92px 16px; }
.band-alt { background: var(--card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.band-ink {
  background: radial-gradient(110% 120% at 85% 0%, #1b2026 0%, #101317 55%, #0b0d10 100%);
  color: #fff;
  overflow: hidden;
}
.section-inner { max-width: var(--max); margin: 0 auto; }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head h2 { font-size: 40px; font-weight: 700; letter-spacing: -.04em; }
.section-head > p { margin-top: 14px; color: var(--muted); font-size: 15px; }
.section-head.on-ink h2 { color: #fff; }
.section-head.on-ink > p { color: rgba(255, 255, 255, .6); }

/* ---------------- 卡片通用 ---------------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 24px;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.card:hover { border-color: var(--border-strong); box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.card h3 { font-size: 15.5px; font-weight: 650; letter-spacing: -.02em; }
.card p { margin-top: 9px; color: var(--muted); font-size: 13.5px; line-height: 1.72; }

/* ---------------- 核心功能：Bento ---------------- */
.bento { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; }
.span2 { grid-column: span 2; }
.span3 { grid-column: span 3; }
.feat { display: flex; flex-direction: column; }
.feat-head { display: flex; align-items: center; gap: 12px; }
.card-icon {
  width: 38px; height: 38px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  flex: none;
  transition: background-color .18s ease, color .18s ease, border-color .18s ease;
}
.card:hover .card-icon { background: var(--ink); border-color: var(--ink); color: #fff; }
.mini-list { margin-top: 16px; display: flex; flex-direction: column; gap: 9px; }
.mini-list li {
  position: relative;
  padding-left: 20px;
  font-size: 12.5px;
  color: var(--muted);
}
.mini-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 6px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: inset 0 0 0 2px rgba(17, 20, 23, .12);
}
.mini-cal { display: flex; gap: 6px; margin-top: 16px; flex-wrap: wrap; }
.mc {
  width: 34px; height: 34px;
  border-radius: 10px;
  display: grid; place-items: center;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--border);
}
.mc.is-full { background: var(--ink); border-color: var(--ink); color: #fff; }
.mc.is-few { background: var(--accent-soft); border-color: rgba(198,242,78,.7); color: #4a5612; }
.mc.is-out { color: #666e78; background: #fafbfc; text-decoration: line-through; }
.features-more {
  margin-top: 18px;
  padding: 15px 20px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 13px;
}

/* ---------------- 系统实景 ---------------- */
.showcase { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, .85fr); gap: 40px; align-items: center; }
.showcase-mock { position: relative; }
.showcase-mock::after {
  content: "";
  position: absolute;
  inset: auto 0 -12% 0;
  height: 60%;
  background: radial-gradient(ellipse at 50% 100%, rgba(198,242,78,.18), transparent 70%);
  pointer-events: none;
}
.mock-wide { border-radius: 16px; box-shadow: 0 50px 100px -60px rgba(0,0,0,.9); }
.mock-wide .mock-bar { background: #f8fafb; }
.mock-tabs { display: flex; gap: 16px; font-size: 10.5px; color: var(--muted); border-bottom: 1px solid #eef0f3; padding-bottom: 8px; }
.mock-tabs .is-on { color: var(--text); font-weight: 650; position: relative; }
.mock-tabs .is-on::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -9px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
}
.mock-filters { display: flex; gap: 7px; margin-top: 12px; }
.mf { height: 22px; flex: 1; border-radius: 7px; background: #f4f6f8; border: 1px solid #eef0f3; }
.mf.w-1 { flex: 1.6; }
.mf.w-2 { flex: .8; }
.mock-table.tall { margin-top: 10px; }
.pill-btn { display: block; height: 18px; border-radius: 999px; background: #f0f2f5; border: 1px solid #e6e9ee; }

.showcase-points { display: flex; flex-direction: column; gap: 22px; }
.showcase-points li { display: flex; gap: 16px; }
.sp-index {
  flex: none;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--accent);
  padding-top: 2px;
  font-variant-numeric: tabular-nums;
}
.showcase-points strong { display: block; font-size: 15px; font-weight: 650; letter-spacing: -.02em; color: #fff; }
.showcase-points p { margin-top: 6px; font-size: 13px; line-height: 1.7; color: rgba(255, 255, 255, .58); }

/* ---------------- 适用场景 ---------------- */
.cards-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.scene { position: relative; overflow: hidden; }
.scene::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  opacity: 0;
  transition: opacity .18s ease;
}
.scene:hover::before { opacity: 1; }
.scene-num {
  display: block;
  margin-bottom: 14px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--muted-soft);
  font-variant-numeric: tabular-nums;
}
.scene h3 { font-size: 15.5px; }
.scene p { margin-top: 10px; }

/* ---------------- 业务流程：时间轴 ---------------- */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  position: relative;
  padding-top: 8px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 28px;
  height: 1px;
  background: linear-gradient(90deg, var(--border-strong), var(--border-strong) 88%, transparent);
}
.timeline li { position: relative; padding-right: 26px; }
.tl-node {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border-strong);
  box-shadow: 0 0 0 6px var(--card);
  font-size: 12px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  transition: background-color .18s ease, border-color .18s ease, color .18s ease;
}
.timeline li:hover .tl-node { background: var(--ink); border-color: var(--ink); color: var(--accent); }
.timeline h3 { margin-top: 22px; font-size: 16px; }
.timeline p { margin-top: 9px; font-size: 13.5px; line-height: 1.72; color: var(--muted); max-width: 230px; }

/* ---------------- 改造前后对比 ---------------- */
.compare { position: relative; display: grid; grid-template-columns: 1fr auto 1fr; gap: 16px; align-items: stretch; }
.compare-col {
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow-card);
}
.compare-col h3 {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -.02em;
}
.compare-col h3 span {
  width: 22px; height: 22px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 12px;
  font-weight: 700;
  flex: none;
}
.compare-col ul { margin-top: 18px; display: flex; flex-direction: column; gap: 14px; }
.compare-col li { position: relative; padding-left: 18px; font-size: 13.5px; line-height: 1.6; color: var(--muted); }
.compare-col li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #cfd4db;
}
.compare-before h3 span { background: #fef2f2; color: #b42318; }
.compare-after { background: var(--ink); border-color: var(--ink); box-shadow: var(--shadow-hover); }
.compare-after h3 { color: #fff; }
.compare-after h3 span { background: var(--accent); color: var(--ink); }
.compare-after li { color: rgba(255, 255, 255, .8); }
.compare-after li::before { background: var(--accent); }
.compare-vs {
  align-self: center;
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-card);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--muted);
  z-index: 1;
}

/* ---------------- CTA ---------------- */
.cta { padding: 24px 16px 96px; }
.cta-inner {
  position: relative;
  overflow: hidden;
  max-width: var(--max);
  margin: 0 auto;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, .07);
  background: radial-gradient(120% 140% at 10% 0%, #1d2228 0%, #14171b 46%, #0b0d10 100%);
  color: #fff;
  padding: 64px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-glow {
  position: absolute;
  right: -120px; bottom: -180px;
  width: 460px; height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(198,242,78,.3) 0%, rgba(198,242,78,0) 70%);
  pointer-events: none;
}
.cta-copy { position: relative; z-index: 1; max-width: 620px; }
.cta h2 { font-size: 38px; font-weight: 700; letter-spacing: -.04em; }
.cta p { margin-top: 14px; font-size: 15px; color: rgba(255, 255, 255, .62); }
.cta-actions { position: relative; z-index: 1; display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------------- 页脚 ---------------- */
.footer { border-top: 1px solid var(--border); background: var(--card); padding: 56px 16px 32px; }
.footer-inner { max-width: var(--max); margin: 0 auto; }
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: 32px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand strong { display: block; font-size: 13.5px; font-weight: 650; }
.footer-brand small { display: block; font-size: 11px; color: var(--muted); }
.footer-brand-col > p { margin-top: 16px; font-size: 12.5px; color: var(--muted); max-width: 280px; line-height: 1.7; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h3 {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--muted-soft);
  margin-bottom: 2px;
}
.footer-col a { font-size: 13px; color: var(--muted); transition: color .15s ease; }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom p { font-size: 11.5px; color: var(--muted-soft); }

/* ---------------- 滚动显现 ---------------- */
.has-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .65s cubic-bezier(.22, 1, .36, 1), transform .65s cubic-bezier(.22, 1, .36, 1);
}
.has-reveal [data-reveal].is-in { opacity: 1; transform: none; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1180px) {
  .hero { padding: 44px 36px 0; }
  .hero-metrics { margin: 40px -36px 0; padding: 24px 36px 26px; }
  .hero h1 { font-size: 50px; }
  .showcase { grid-template-columns: minmax(0, 1.35fr) minmax(0, .9fr); gap: 28px; }
}

@media (max-width: 1024px) {
  .band { padding: 72px 16px; }
  .section-head h2 { font-size: 34px; }
  .hero-content { grid-template-columns: 1fr; gap: 36px; }
  .hero-visual { max-width: 560px; }
  .float-a { left: -12px; bottom: 46px; }
  .hero-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 0; }
  .hero-metrics > div:nth-child(3) { border-left: 0; padding-left: 0; }
  .bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .span3, .span2 { grid-column: span 1; }
  .cards-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 0; }
  .timeline::before { display: none; }
  .timeline p { max-width: none; }
  .showcase { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 880px) {
  .nav-links { display: none; }
  .nav-inner { gap: 10px; padding: 0 14px; height: 60px; }
  .nav-actions { margin-left: auto; }
  .nav-actions .btn { padding: 0 14px; }
}

@media (max-width: 720px) {
  body { font-size: 14px; }
  .nav { padding: 8px 10px 0; }
  .hero-wrap { padding: 8px 10px 0; }
  .hero { padding: 30px 22px 0; border-radius: var(--radius-lg); }
  .hero h1 { font-size: 34px; line-height: 1.12; }
  .hero-copy > p { font-size: 13.5px; margin-top: 16px; }
  .hero-cta { margin-top: 22px; }
  .hero-cta .btn { flex: 1 1 0; }
  .hero-points { gap: 12px 18px; }
  .hero-metrics { margin: 30px -22px 0; padding: 20px 22px 24px; grid-template-columns: 1fr; gap: 16px; }
  .hero-metrics > div { padding-right: 0; }
  .hero-metrics > div + div { border-left: 0; padding-left: 0; border-top: 1px solid rgba(255,255,255,.08); padding-top: 16px; }
  .float-a, .float-b { display: none; }
  .mock-hero .mock-kpis { grid-template-columns: 1fr 1fr; }
  .mock-hero .mock-kpis > div:last-child { display: none; }

  .band { padding: 52px 10px; }
  .section-head { margin-bottom: 30px; }
  .section-head h2 { font-size: 26px; }
  .section-head > p { font-size: 13.5px; }
  .bento, .cards-4 { grid-template-columns: 1fr; }
  .card { padding: 20px; }
  .timeline { grid-template-columns: 1fr; gap: 26px; }
  .compare { grid-template-columns: 1fr; }
  .compare-vs { justify-self: center; }
  .cta { padding: 16px 10px 56px; }
  .cta-inner { padding: 34px 24px; border-radius: var(--radius-lg); gap: 24px; }
  .cta h2 { font-size: 24px; }
  .cta p { font-size: 13.5px; }
  .cta-actions { width: 100%; }
  .cta-actions .btn { flex: 1 1 0; }
  .footer { padding: 36px 10px 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-brand-col { grid-column: span 2; }
  .footer-bottom { margin-top: 28px; }
}

@media (max-width: 420px) {
  .hero h1 { font-size: 29px; }
  .mk strong { font-size: 12.5px; }
}