/* ============================================================
   PropOS 营销站点 · 设计系统
   Apple 极简骨架 + PropOS 专色（金 / 红 / 银 / 琥珀）
   ============================================================ */

:root {
  --gold: #AC8F5D;
  --gold-light: #c9b48c;
  --gold-deep: #8c7449;
  --red: #A6192E;
  --silver: #8A8D8F;
  --amber: #C8923E;

  --ink: #1d1d1f;
  --ink-70: rgba(0, 0, 0, 0.72);
  --ink-50: rgba(0, 0, 0, 0.5);
  --ink-36: rgba(0, 0, 0, 0.36);

  --bg-dark: #0a0a0c;
  --bg-dark-2: #101013;
  --bg-light: #f5f5f7;
  --bg-white: #ffffff;
  --line: #e4e4e8;

  --rented: #3a9d6e;
  --expiring: #C8923E;
  --vacant: #A6192E;
  --nonlease: #8A8D8F;

  --radius: 18px;
  --radius-lg: 28px;
  --shadow-card: 0 1px 2px rgba(0,0,0,.05), 0 12px 32px rgba(0,0,0,.08);
  --shadow-float: 0 24px 60px rgba(0,0,0,.45);

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
          "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", "Microsoft YaHei", sans-serif;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img, svg { display: block; max-width: 100%; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

.section { padding: 108px 0; }
.section.dark { background: var(--bg-dark); color: #f5f5f7; }
.section.light { background: var(--bg-light); }

/* ---------- 标题体系 ---------- */
.eyebrow {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: 18px;
}
.section.dark .eyebrow { color: var(--gold-light); }

.section-head { text-align: center; max-width: 760px; margin: 0 auto 64px; }

.section-title {
  font-size: clamp(30px, 4.6vw, 48px);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.section-title.left { text-align: left; }

.section-sub {
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--ink-50);
  line-height: 1.6;
}
.section-sub.left { text-align: left; }
.section.dark .section-sub { color: rgba(255,255,255,.56); }
.br-pc { display: inline; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 980px;
  font-size: 16px;
  font-weight: 600;
  transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
  cursor: pointer;
  border: none;
}
.btn-gold {
  background: linear-gradient(180deg, #c9b48c, var(--gold));
  color: #1d1d1f;
  box-shadow: 0 8px 24px rgba(172,143,93,.35);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(172,143,93,.5); }
.btn-ghost {
  background: transparent;
  color: #f5f5f7;
  border: 1px solid rgba(255,255,255,.24);
}
.btn-ghost:hover { border-color: rgba(255,255,255,.5); background: rgba(255,255,255,.06); }
.btn-sm { padding: 9px 20px; font-size: 14px; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: background .3s ease, backdrop-filter .3s ease, border-color .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(10,10,12,.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand { display: flex; align-items: center; gap: 10px; color: #f5f5f7; }
.brand-mark { width: 32px; height: 32px; flex: none; }
.brand-name { font-size: 19px; font-weight: 700; letter-spacing: -0.01em; }
.brand-sub { font-size: 12px; color: rgba(255,255,255,.55); margin-left: 2px; }

.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a {
  font-size: 14px;
  color: rgba(255,255,255,.72);
  transition: color .2s;
}
.nav-links a:hover { color: #fff; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--bg-dark);
  color: #f5f5f7;
  padding: 168px 0 0;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -220px; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 600px;
  background: radial-gradient(circle, rgba(172,143,93,.22), transparent 65%);
  pointer-events: none;
}
.hero-inner { position: relative; text-align: center; z-index: 2; }
.hero-eyebrow {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--gold-light);
  margin-bottom: 26px;
}
.hero-title {
  font-size: clamp(40px, 7vw, 76px);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin-bottom: 26px;
}
.grad-text {
  background: linear-gradient(105deg, #f2e2bf 0%, var(--gold) 45%, #e7c98f 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: clamp(17px, 2.2vw, 21px);
  color: rgba(255,255,255,.64);
  max-width: 640px;
  margin: 0 auto 36px;
  line-height: 1.65;
}
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 64px; }

.hero-stats {
  display: flex;
  justify-content: center;
  gap: clamp(32px, 7vw, 96px);
  flex-wrap: wrap;
  padding-bottom: 40px;
}
.stat { text-align: center; }
.stat-num {
  display: block;
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.stat-label { font-size: 14px; color: rgba(255,255,255,.5); }

/* Hero 视觉 */
.hero-visual {
  position: relative;
  margin: 0 auto;
  max-width: 1180px;
  padding: 0 28px;
}
.skyline { width: 100%; height: auto; border-radius: 24px 24px 0 0; }

.float-card {
  position: absolute;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 16px;
  padding: 18px 22px;
  box-shadow: var(--shadow-float);
  color: var(--ink);
  animation: floaty 6s ease-in-out infinite;
}
.fc-1 { top: 8%; left: 4%; }
.fc-2 { top: 46%; right: 3%; animation-delay: 1.2s; }
.fc-3 { bottom: 10%; left: 22%; animation-delay: 2.4s; }
.fc-tag { font-size: 12px; color: var(--ink-50); margin-bottom: 6px; }
.fc-val { font-size: 30px; font-weight: 700; letter-spacing: -0.02em; }
.fc-val small { font-size: 15px; font-weight: 600; color: var(--ink-50); }
.fc-delta { font-size: 12px; margin-top: 4px; }
.fc-delta.up { color: #1e8a55; }
.fc-delta.down { color: var(--red); }
.fc-bar {
  margin-top: 10px;
  height: 6px;
  border-radius: 99px;
  background: #eeeef1;
  overflow: hidden;
}
.fc-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--gold), #e7c98f); border-radius: 99px; }

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---------- 痛点 ---------- */
.pain-grid {
  display: grid;
  grid-template-columns: 1fr 80px 1fr;
  align-items: stretch;
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}
.pain-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--line);
}
.pain-card.after { border-color: rgba(172,143,93,.35); }
.pain-head {
  font-size: 17px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--silver); flex: none; }
.dot.gold { background: var(--gold); }
.pain-card li {
  position: relative;
  padding: 10px 0 10px 22px;
  font-size: 15px;
  color: var(--ink-70);
  line-height: 1.6;
  border-bottom: 1px dashed #ececef;
}
.pain-card li:last-child { border-bottom: none; }
.pain-card li b { color: var(--ink); font-weight: 600; }
.pain-card li::before {
  content: "";
  position: absolute;
  left: 0; top: 18px;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--silver);
}
.pain-card.after li::before { background: var(--gold); border-radius: 50%; }
.pain-arrow { display: flex; align-items: center; justify-content: center; }
.pain-arrow svg { width: 44px; height: 44px; }

/* ---------- 模块总览 ---------- */
.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.module-card {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  transition: transform .25s ease, box-shadow .25s ease;
  border: 1px solid transparent;
}
.module-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
  border-color: rgba(172,143,93,.3);
  background: var(--bg-white);
}
.module-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: linear-gradient(180deg, #f4ecdc, #eadfc6);
  color: var(--gold-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}
.module-icon svg { width: 26px; height: 26px; }
.module-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.01em; }
.module-card p { font-size: 15px; color: var(--ink-50); line-height: 1.65; margin-bottom: 18px; }
.module-tag {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--gold-deep);
  background: rgba(172,143,93,.12);
  padding: 5px 12px;
  border-radius: 99px;
}

/* ---------- 楼层热区 ---------- */
.floor-wrap { max-width: 960px; margin: 0 auto; }
.floor-legend {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 28px;
}
.lg { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; color: rgba(255,255,255,.75); }
.lg::before { content: ""; width: 12px; height: 12px; border-radius: 4px; }
.lg-rented::before { background: var(--rented); }
.lg-expiring::before { background: var(--expiring); }
.lg-vacant::before { background: var(--vacant); }
.lg-nonlease::before { background: var(--nonlease); }

.floor-canvas {
  position: relative;
  background: var(--bg-dark-2);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: 0 30px 80px rgba(0,0,0,.5);
}
.floor-svg { width: 100%; height: auto; }

.u { transition: filter .2s ease; }
.u-rented { fill: rgba(58,157,110,.28); stroke: rgba(58,157,110,.7); stroke-width: 1.5; }
.u-expiring { fill: rgba(200,146,62,.30); stroke: rgba(200,146,62,.8); stroke-width: 1.5; }
.u-vacant { fill: rgba(166,25,46,.32); stroke: rgba(217,64,84,.85); stroke-width: 1.5; }
.u-nonlease { fill: rgba(138,141,143,.16); stroke: rgba(138,141,143,.5); stroke-width: 1.5; stroke-dasharray: 4 4; }
.floor-canvas:hover .u { filter: brightness(1.15); }

.floor-tip { opacity: 0; transition: opacity .2s ease; }
.floor-card {
  position: absolute;
  top: 30px; left: 30px;
  background: rgba(255,255,255,.97);
  color: var(--ink);
  border-radius: 14px;
  padding: 16px 18px;
  width: 240px;
  box-shadow: 0 18px 50px rgba(0,0,0,.5);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .25s ease, transform .25s ease;
  pointer-events: none;
}
.floor-canvas.active .floor-card { opacity: 1; transform: translateY(0); }
.floor-card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.floor-unit { font-weight: 700; font-size: 15px; }
.badge { font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 99px; }
.badge-rented { background: rgba(58,157,110,.14); color: #1e8a55; }
.badge-gold { background: var(--gold); color: #fff; }
.floor-card-body .fc-row { display: flex; justify-content: space-between; font-size: 13.5px; padding: 6px 0; color: var(--ink-50); }
.floor-card-body .fc-row b { color: var(--ink); font-variant-numeric: tabular-nums; }
.floor-note {
  text-align: center;
  font-size: 14.5px;
  color: rgba(255,255,255,.55);
  margin-top: 26px;
}

/* ---------- 财务首页 ---------- */
.dash-wrap { max-width: 980px; margin: 0 auto; }
.browser {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 80px rgba(0,0,0,.12);
  overflow: hidden;
  border: 1px solid var(--line);
}
.browser-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: #f0f0f2;
  border-bottom: 1px solid var(--line);
}
.b-dot { width: 12px; height: 12px; border-radius: 50%; }
.b-dot.r { background: #ff5f57; }
.b-dot.y { background: #febc2e; }
.b-dot.g { background: #28c840; }
.b-url {
  margin-left: 14px;
  flex: 1;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 12.5px;
  color: var(--ink-50);
  padding: 6px 14px;
}
.browser-body { display: flex; min-height: 520px; }

.dash-side {
  width: 176px;
  flex: none;
  background: #161618;
  color: rgba(255,255,255,.6);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.side-logo {
  width: 40px; height: 40px;
  border-radius: 11px;
  background: linear-gradient(180deg, #c9b48c, var(--gold));
  color: #1d1d1f;
  font-weight: 800;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.side-nav { display: flex; flex-direction: column; gap: 6px; }
.side-item {
  font-size: 14px;
  padding: 10px 14px;
  border-radius: 9px;
  cursor: default;
}
.side-item.active { background: rgba(172,143,93,.18); color: var(--gold-light); font-weight: 600; }

.dash-main { flex: 1; padding: 28px; background: var(--bg-light); }
.dash-title { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 22px; }
.dash-title h4 { font-size: 20px; font-weight: 700; }
.dash-title p { font-size: 13px; color: var(--ink-50); }
.chip {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--gold-deep);
  background: rgba(172,143,93,.14);
  padding: 6px 14px;
  border-radius: 99px;
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 20px;
}
.kpi-card {
  background: var(--bg-white);
  border-radius: 16px;
  padding: 18px;
  border: 1px solid var(--line);
}
.kpi-label { font-size: 12.5px; color: var(--ink-50); margin-bottom: 8px; }
.kpi-value { font-size: 27px; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.kpi-value small { font-size: 14px; color: var(--ink-50); font-weight: 600; }
.kpi-meta { font-size: 12px; margin-top: 6px; color: var(--ink-50); }
.kpi-meta.up { color: #1e8a55; }
.kpi-meta.down { color: var(--red); }
.kpi-sub { font-size: 12px; color: var(--ink-50); margin-top: 6px; }
.kpi-sub b { color: var(--ink); }
.kpi-bar { margin-top: 12px; height: 6px; border-radius: 99px; background: #eeeef1; overflow: hidden; }
.kpi-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--gold), #e7c98f); border-radius: 99px; }

.dash-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 14px; }
.panel { background: var(--bg-white); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.panel-head { font-size: 13.5px; font-weight: 600; margin-bottom: 14px; display: flex; justify-content: space-between; }
.panel-note { font-weight: 400; color: var(--ink-36); font-size: 12px; }
.trend-svg { width: 100%; height: 150px; }

.type-row { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.t-name { font-size: 13px; width: 52px; flex: none; color: var(--ink-70); }
.t-bar { flex: 1; height: 8px; background: #eeeef1; border-radius: 99px; overflow: hidden; }
.t-bar span { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--gold), #e7c98f); }
.type-row b { font-size: 12.5px; font-variant-numeric: tabular-nums; }

.dash-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.dash-point { padding: 8px 4px; }
.dp-num { font-size: 13px; font-weight: 700; color: var(--gold-deep); letter-spacing: .06em; }
.dash-point b { display: block; font-size: 17px; margin: 10px 0 8px; }
.dash-point p { font-size: 14px; color: var(--ink-50); line-height: 1.6; }

/* ---------- 合同流程 ---------- */
.flow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: 64px;
}
.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-70);
  min-width: 92px;
}
.f-ico {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--bg-light);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.flow-node.active .f-ico { background: var(--gold); color: #fff; border-color: var(--gold); }
.flow-node.warn .f-ico { background: rgba(200,146,62,.14); color: var(--amber); border-color: rgba(200,146,62,.5); }
.flow-node.end .f-ico { background: rgba(58,157,110,.12); color: #1e8a55; border-color: rgba(58,157,110,.4); }
.flow-line { flex: 1; min-width: 28px; height: 2px; background: var(--line); max-width: 64px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature h3 { font-size: 17px; margin-bottom: 10px; }
.feature p { font-size: 14.5px; color: var(--ink-50); line-height: 1.65; }

/* ---------- 工单 / KPI 双栏 ---------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 88px;
}
.two-col:last-child { margin-bottom: 0; }
.two-col.reverse { direction: ltr; }
.check-list { margin-top: 26px; }
.check-list li {
  position: relative;
  padding: 10px 0 10px 34px;
  font-size: 15.5px;
  color: var(--ink-70);
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 9px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(172,143,93,.15);
  color: var(--gold-deep);
  font-weight: 700;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.wo-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--line);
}
.wo-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.wo-title { font-weight: 700; font-size: 17px; }
.wo-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px dashed #ececef;
}
.wo-item:last-child { border-bottom: none; }
.wo-state {
  flex: none;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 99px;
  margin-top: 2px;
}
.wo-state.dispatched { background: rgba(166,25,46,.1); color: var(--red); }
.wo-state.doing { background: rgba(200,146,62,.16); color: #9a6d20; }
.wo-state.done { background: rgba(58,157,110,.12); color: #1e8a55; }
.wo-info b { font-size: 14.5px; }
.wo-info p { font-size: 12.5px; color: var(--ink-50); margin-top: 3px; }

.kpi-card-visual {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--line);
  text-align: center;
}
.kv-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.kv-title { font-size: 15px; font-weight: 700; }
.kv-score { font-size: 22px; font-weight: 700; color: var(--gold-deep); }
.radar { width: 220px; height: 220px; margin: 0 auto; }
.kv-legend { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 14px; }
.kv-legend span {
  font-size: 11.5px;
  color: var(--ink-70);
  background: var(--bg-light);
  padding: 4px 10px;
  border-radius: 99px;
}

/* ---------- 多端 ---------- */
.devices {
  display: flex;
  gap: 48px;
  justify-content: center;
  align-items: flex-end;
  flex-wrap: wrap;
}
.device { text-align: center; }
.dev-label { margin-top: 22px; font-size: 14px; color: rgba(255,255,255,.55); }

.dev-screen {
  position: relative;
  background: linear-gradient(180deg, #17171a, #101013);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 30px;
  overflow: hidden;
  color: #f5f5f7;
}
.device.phone .dev-screen {
  width: 260px; height: 540px;
  border-radius: 38px;
  padding: 18px 16px;
  box-shadow: 0 40px 90px rgba(0,0,0,.55);
}
.device.tablet .dev-screen {
  width: 460px; height: 420px;
  border-radius: 24px;
  padding: 20px 24px;
  box-shadow: 0 40px 90px rgba(0,0,0,.55);
}
.dev-status { font-size: 12px; color: rgba(255,255,255,.55); margin-bottom: 18px; text-align: center; }
.dev-greet { font-size: 17px; font-weight: 600; margin-bottom: 16px; }
.dev-kpi {
  background: #1e1e22;
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 12px;
}
.dev-kpi span { display: block; font-size: 11.5px; color: rgba(255,255,255,.5); margin-bottom: 4px; }
.dev-kpi b { font-size: 20px; font-weight: 700; }
.dev-kpi em { font-style: normal; font-size: 11.5px; color: #4ccd88; margin-left: 6px; }
.dev-kpi em.down { color: #e06a7a; }
.dev-bar { margin-top: 8px; height: 5px; background: #2a2a2e; border-radius: 99px; overflow: hidden; }
.dev-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--gold), #e7c98f); }
.dev-tab {
  position: absolute;
  bottom: 14px; left: 16px; right: 16px;
  display: flex;
  justify-content: space-between;
  font-size: 10.5px;
  color: rgba(255,255,255,.45);
  background: #1c1c20;
  border-radius: 99px;
  padding: 12px 16px;
}
.dev-tab span.on { color: var(--gold-light); font-weight: 600; }

.dev-grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 18px; }
.dg { background: #1e1e22; border-radius: 14px; padding: 14px; text-align: left; }
.dg-ico { display: block; width: 24px; height: 24px; border-radius: 7px; margin-bottom: 8px; }
.dg-ico.b { background: rgba(172,143,93,.3); }
.dg-ico.s { background: rgba(58,157,110,.3); }
.dg-ico.a { background: rgba(200,146,62,.3); }
.dg b { font-size: 14px; }
.dg p { font-size: 11px; color: rgba(255,255,255,.5); margin-top: 3px; }
.dev-list { display: flex; flex-direction: column; gap: 10px; }
.dl { font-size: 12.5px; color: rgba(255,255,255,.7); display: flex; align-items: center; gap: 12px; }
.dl-bar { flex: none; height: 6px; border-radius: 99px; background: linear-gradient(90deg, var(--gold), #e7c98f); min-width: 4px; }

.platform-chips {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 56px;
}
.platform-chips span {
  font-size: 14px;
  color: rgba(255,255,255,.8);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 99px;
  padding: 9px 22px;
}

/* ---------- 架构 ---------- */
.arch-stack { max-width: 860px; margin: 0 auto; }
.arch-layer {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px 30px;
  background: var(--bg-white);
  display: flex;
  align-items: center;
  gap: 28px;
}
.arch-layer.clients { background: linear-gradient(180deg, #fff, #fafafc); }
.arch-layer.server { background: linear-gradient(180deg, #faf7f0, #f6f1e6); border-color: rgba(172,143,93,.35); }
.arch-layer.data { background: linear-gradient(180deg, #f7f7f9, #f0f0f3); }
.arch-label {
  flex: none;
  width: 64px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-50);
}
.arch-items { display: flex; gap: 12px; flex-wrap: wrap; }
.arch-box {
  font-size: 14px;
  font-weight: 600;
  padding: 11px 20px;
  border-radius: 12px;
  background: var(--bg-white);
  border: 1px solid var(--line);
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.arch-layer.server .arch-box { border-color: rgba(172,143,93,.3); }
.arch-arrow {
  text-align: center;
  padding: 14px 0;
  font-size: 12.5px;
  color: var(--ink-36);
  letter-spacing: .04em;
}

.arch-points {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 64px;
}
.arch-point b { display: block; font-size: 16px; margin-bottom: 8px; color: var(--gold-deep); }
.arch-point p { font-size: 14px; color: var(--ink-50); line-height: 1.6; }

/* ---------- 定制 ---------- */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}
.audience {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}
.audience h3 { font-size: 18px; margin-bottom: 12px; }
.audience p { font-size: 14.5px; color: var(--ink-50); line-height: 1.65; }

.custom-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.cstep { position: relative; padding: 8px 4px; }
.cs-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--gold);
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  margin-bottom: 16px;
}
.cstep b { display: block; font-size: 17px; margin-bottom: 8px; }
.cstep p { font-size: 14px; color: var(--ink-50); line-height: 1.6; }

/* ---------- CTA ---------- */
.cta {
  position: relative;
  overflow: hidden;
  background: radial-gradient(1200px 500px at 50% -10%, #1b1b1f, var(--bg-dark));
}
.cta-glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 1000px; height: 500px;
  background: radial-gradient(circle, rgba(172,143,93,.16), transparent 60%);
  pointer-events: none;
}
.cta-inner { position: relative; text-align: center; max-width: 720px; }
.cta .section-sub { margin-bottom: 36px; }
.cta-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.cta-form input {
  flex: 1 1 180px;
  min-width: 160px;
  padding: 14px 20px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.06);
  color: #fff;
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color .2s, background .2s;
}
.cta-form input::placeholder { color: rgba(255,255,255,.4); }
.cta-form input:focus { border-color: var(--gold); background: rgba(255,255,255,.1); }
.cta-note { margin-top: 20px; font-size: 14px; color: var(--gold-light); min-height: 22px; }

/* ---------- 页脚 ---------- */
.footer { background: #070709; color: rgba(255,255,255,.6); padding: 56px 0 40px; }
.footer-inner {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}
.footer-brand { display: flex; align-items: center; gap: 12px; color: #fff; }
.fb-name { font-weight: 700; font-size: 17px; }
.fb-sub { font-size: 12px; color: rgba(255,255,255,.45); }
.footer-links { display: flex; gap: 24px; margin-left: auto; flex-wrap: wrap; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,.6); transition: color .2s; }
.footer-links a:hover { color: #fff; }
.footer-copy { font-size: 13px; color: rgba(255,255,255,.4); width: 100%; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.08); }

/* ---------- 滚动显现动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s cubic-bezier(.16,.84,.32,1), transform .7s cubic-bezier(.16,.84,.32,1);
}
.reveal.visible { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .module-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .audience-grid { grid-template-columns: repeat(2, 1fr); }
  .custom-steps { grid-template-columns: repeat(2, 1fr); }
  .arch-points { grid-template-columns: repeat(2, 1fr); }
  .dash-points { grid-template-columns: repeat(2, 1fr); }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .nav-links { display: none; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .br-pc { display: none; }
  .hero { padding-top: 136px; }
  .hero-stats { gap: 28px; }
  .float-card { display: none; }
  .pain-grid { grid-template-columns: 1fr; }
  .pain-arrow { transform: rotate(90deg); padding: 4px 0; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .dash-grid { grid-template-columns: 1fr; }
  .browser-body { flex-direction: column; }
  .dash-side { width: 100%; flex-direction: row; align-items: center; }
  .side-nav { flex-direction: row; flex-wrap: wrap; }
  .flow-line { display: none; }
  .flow { gap: 14px; }
  .device.tablet .dev-screen { width: 100%; height: 360px; }
  .brand-sub { display: none; }
}

@media (max-width: 520px) {
  .module-grid, .feature-grid, .audience-grid, .custom-steps,
  .arch-points, .dash-points { grid-template-columns: 1fr; }
  .kpi-row { grid-template-columns: 1fr; }
  .arch-layer { flex-direction: column; align-items: flex-start; gap: 14px; }
  .device.phone .dev-screen { width: 240px; }
  .nav .btn { display: none; }
}