/* ============================================================
   融易付云值守 — 官方主页 · 工业机械风格
   ============================================================ */

:root {
  /* 深色底色 */
  --ink: #170d0d;
  --ink-2: #1d1212;
  --ink-3: #221515;
  /* 浅色底色 */
  --paper: #fef2f2;
  --paper-2: #fffafa;
  /* 线条 */
  --line-dark: rgba(255, 255, 255, 0.12);
  --line-light: rgba(11, 15, 22, 0.14);
  /* 文字 */
  --text-dark: #251212;
  --text-dim-dark: rgba(105, 52, 52, 0.62);
  --text-light: #f6f1e7;
  --text-dim: rgba(246, 241, 231, 0.64);
  --text-faint: rgba(246, 241, 231, 0.4);
  /* 主色 - 红色系 */
  --accent: #dc2626;
  --accent-deep: #b91c1c;
  --accent-soft: #f87171;
  --accent-glow: #f8a5a5;
  /* 辅助色 - 工业灰 */
  --metal: #4a4a4a;
  --metal-dark: #2d2d2d;
  --metal-light: #e0e0e0;
  /* 警示色 */
  --warning: #f59e0b;
  --critical: #ef4444;
  --success: #10b981;
  /* 字体 */
  --serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", "STSong", "SimSun", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Cascadia Code", Consolas, monospace;
  --header-h: 76px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  background: var(--ink);
  color: var(--text-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

::selection {
  background: var(--accent);
  color: #ffffff;
}

:focus-visible {
  outline: 2px solid var(--accent-soft);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
  border-radius: 0 0 10px 10px;
  transition: top 0.25s ease;
}

.skip-link:focus {
  top: 0;
}

/* ---------- 通用 ---------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-soft);
  margin-bottom: 22px;
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--accent);
  transform: rotate(45deg);
  flex: none;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: 0.01em;
}

h2 {
  font-size: clamp(34px, 4.6vw, 60px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 0;
  border-radius: 999px;
  font-family: var(--sans);
  font-weight: 600;
  cursor: pointer;
  transition:
    transform 0.22s cubic-bezier(0.2, 0.7, 0.2, 1),
    box-shadow 0.22s ease,
    background-color 0.22s ease,
    border-color 0.22s ease,
    color 0.22s ease;
}

.btn svg {
  width: 17px;
  height: 17px;
  flex: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent-soft) 0%, var(--accent-deep) 100%);
  color: #ffffff;
  box-shadow: 0 14px 34px rgba(220, 38, 38, 0.32);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--accent) 0%, #b91c1c 100%);
  transform: translateY(-2px);
  box-shadow: 0 18px 42px rgba(220, 38, 38, 0.42);
}

.btn--outline {
  border: 1px solid rgba(246, 241, 231, 0.36);
  color: var(--text-light);
  background: transparent;
}

.btn--outline:hover {
  border-color: var(--accent-soft);
  color: var(--accent-soft);
  transform: translateY(-2px);
}

.btn--sm {
  padding: 8px 16px;
  font-size: 12px;
}

.btn--lg {
  padding: 15px 28px;
  font-size: 15px;
}

/* ---------- 顶栏 ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  transition: background-color 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(11, 15, 22, 0.84);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line-dark);
}

.site-header__inner {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand__mark {
  width: 38px;
  height: 38px;
  flex: none;
}

.brand__name {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand__name em {
  font-style: normal;
  font-size: 12px;
  font-family: var(--sans);
  font-weight: 500;
  color: var(--text-dim);
  margin-left: 8px;
  letter-spacing: 0.14em;
}

.site-nav {
  display: flex;
  gap: 34px;
}

.site-nav a {
  position: relative;
  font-size: 14px;
  color: var(--text-dim);
  padding: 6px 0;
  transition: color 0.2s ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.25s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.site-nav a:hover {
  color: var(--text-light);
}

.site-nav a:hover::after {
  width: 100%;
}

/* ---------- HERO ---------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(1200px 700px at 78% -10%, rgba(220, 38, 38, 0.16), transparent 58%),
    radial-gradient(900px 620px at 8% 110%, rgba(37, 99, 235, 0.12), transparent 55%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(220, 38, 38, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(220, 38, 38, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.4;
  pointer-events: none;
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
}

.hero__glow--one {
  width: 440px;
  height: 440px;
  right: 6%;
  top: 10%;
  background: rgba(220, 38, 38, 0.18);
}

.hero__glow--two {
  width: 380px;
  height: 380px;
  left: -90px;
  bottom: 4%;
  background: rgba(153, 27, 27, 0.2);
}

.hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: calc(var(--header-h) + 26px) 28px 96px;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: center;
  gap: clamp(34px, 5vw, 76px);
}

.hero__copy {
  max-width: 640px;
}

.hero__title {
  font-size: clamp(52px, 6.8vw, 92px);
  letter-spacing: 0.03em;
  margin-bottom: 24px;
  text-wrap: balance;
}

.hero__lead {
  max-width: 34em;
  font-size: 16px;
  color: var(--text-dim);
  margin-bottom: 34px;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 14px;
  margin-bottom: 30px;
}

.hero__meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 10px 22px;
  font-size: 12.5px;
  color: var(--text-faint);
}

.hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero__meta li::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

/* 首屏扫描线 */
.hero__scan {
  position: absolute;
  left: 0;
  right: 0;
  top: -30%;
  height: 140px;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(220, 38, 38, 0.04) 48%, rgba(220, 38, 38, 0.16) 50%, rgba(220, 38, 38, 0.04) 52%, transparent);
  animation: hero-scan 9s linear infinite;
}

@keyframes hero-scan {
  0% { top: -30%; }
  100% { top: 130%; }
}

/* ---------- HERO 仪表盘 ---------- */

.hero__dashboard {
  position: relative;
  display: flex;
  justify-content: center;
  padding: 10px 0;
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.7s ease 0.2s,
    transform 0.9s cubic-bezier(0.18, 0.9, 0.26, 1) 0.2s;
}

.hero__dashboard.reveal.in {
  opacity: 1;
  transform: none;
}

.dashboard {
  width: min(520px, 92vw);
  border-radius: 16px;
  overflow: hidden;
  background: linear-gradient(165deg, rgba(34, 15, 15, 0.92) 0%, rgba(23, 18, 18, 0.95) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(220, 38, 38, 0.04) inset,
    0 0 20px rgba(220, 38, 38, 0.2);
  backdrop-filter: blur(12px);
  position: relative;
}

.dashboard::before {
  content: "";
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 30%, rgba(220, 38, 38, 0.1) 0%, transparent 70%),
    radial-gradient(circle at 80% 70%, rgba(220, 38, 38, 0.05) 0%, transparent 70%);
}

.dashboard__header {
  display: flex;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
}

.dashboard__status {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: none;
}

.status-indicator--green {
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.3);
}

.status-indicator--red {
  background: var(--critical);
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.3);
}

.status-indicator--amber {
  background: var(--warning);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.3);
}

.status-text {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

.dashboard__time {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
  letter-spacing: 0.06em;
}

.dashboard__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 24px;
}

.metric-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.metric-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 16px;
  color: var(--accent-soft);
}

.metric-value {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--text-light);
  font-variant-numeric: tabular-nums;
  margin-bottom: 8px;
}

.metric-value em {
  font-style: normal;
  font-size: 0.5em;
  font-weight: 500;
  color: var(--accent-soft);
  margin-right: 4px;
}

.metric-label {
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.metric-trend {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--success);
  letter-spacing: 0.04em;
}

.metric-card--revenue .metric-trend {
  color: var(--success);
}

.metric-card--orders .metric-trend {
  color: var(--accent-soft);
}

.metric-card--inventory .metric-trend {
  color: var(--warning);
}

.dashboard__chart {
  padding: 24px;
  position: relative;
}

.chart-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 8px;
  height: 120px;
}

.chart-cell {
  background: rgba(220, 38, 38, 0.2);
  border-radius: 4px 4px 0 0;
  transition: background 0.3s ease;
}

.chart-cell--current {
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  box-shadow: 0 0 12px rgba(220, 38, 38, 0.5);
}

.chart-axis {
  display: flex;
  justify-content: space-between;
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

/* ---------- 产品亮点区 ---------- */

.product-highlights {
  position: relative;
  background: var(--paper);
  color: var(--text-dark);
  padding: 120px 28px;
  overflow: hidden;
}

.product-highlights__bg {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(220, 38, 38, 0.08) 0%, transparent 70%),
    radial-gradient(circle at 90% 80%, rgba(220, 38, 38, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.product-highlights__inner {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}

.product-highlights__head {
  text-align: center;
  margin-bottom: 64px;
}

.product-highlights__head .eyebrow {
  color: var(--accent-deep);
}

.product-highlights__subhead {
  font-size: 16px;
  color: var(--text-dim-dark);
  max-width: 600px;
  margin: 16px auto 0;
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.highlight-card {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(220, 38, 38, 0.1);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.4s ease;
  position: relative;
  overflow: hidden;
}

.highlight-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.highlight-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(16, 21, 29, 0.12);
}

.highlight-card:hover::before {
  transform: scaleX(1);
}

.highlight-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 24px;
  color: var(--accent);
  background: rgba(220, 38, 38, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.highlight-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-dark);
}

.highlight-card p {
  font-size: 14px;
  color: var(--text-dim-dark);
  margin-bottom: 20px;
  line-height: 1.6;
}

.highlight-badge {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.2);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 0.04em;
}

/* ---------- 功能区 ---------- */

.features {
  background: var(--paper-2);
  color: var(--text-dark);
  padding: 130px 28px;
}

.features__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(44px, 7vw, 110px);
}

.features__lead {
  position: sticky;
  top: calc(var(--header-h) + 40px);
  align-self: start;
}

.features__lead .eyebrow {
  color: var(--accent-deep);
}

.features__lead h2 {
  margin-bottom: 26px;
}

.features__intro {
  max-width: 26em;
  color: var(--text-dim-dark);
  font-size: 15px;
}

.feature-list {
  list-style: none;
}

.feature-row {
  display: grid;
  grid-template-columns: 58px 46px 1fr 30px;
  align-items: center;
  gap: 16px;
  padding: 30px 6px;
  border-top: 1px solid var(--line-light);
  transition: transform 0.3s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.feature-row:last-child {
  border-bottom: 1px solid var(--line-light);
}

.feature-row:hover {
  transform: translateX(8px);
}

.feature-row__index {
  font-family: var(--serif);
  font-size: 20px;
  color: rgba(16, 21, 29, 0.34);
  font-variant-numeric: tabular-nums;
}

.feature-row__icon {
  width: 44px;
  height: 44px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.2);
  transition: background-color 0.25s ease, transform 0.25s ease, color 0.25s ease;
}

.feature-row__icon svg {
  width: 21px;
  height: 21px;
}

.feature-row:hover .feature-row__icon {
  background: var(--accent);
  color: #ffffff;
  transform: rotate(-6deg);
}

.feature-row__copy h3 {
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}

.feature-row__copy p {
  font-size: 13.5px;
  color: var(--text-dim-dark);
  max-width: 38em;
}

.feature-row__arrow {
  font-size: 20px;
  color: rgba(16, 21, 29, 0.24);
  transform: translateX(-6px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease, color 0.3s ease;
}

.feature-row:hover .feature-row__arrow {
  transform: translateX(0);
  opacity: 1;
  color: var(--accent);
}

/* ---------- 仪表盘区 ---------- */

.dashboard-section {
  position: relative;
  background: var(--paper);
  color: var(--text-dark);
  padding: 120px 28px;
  overflow: hidden;
}

.dashboard-section__bg {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(220, 38, 38, 0.06) 0%, transparent 70%),
    radial-gradient(circle at 85% 85%, rgba(220, 38, 38, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.dashboard-section__inner {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}

.dashboard-section__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  margin-bottom: 64px;
}

.dashboard-section__head .eyebrow {
  color: var(--accent-deep);
}

.dashboard-section__controls {
  display: flex;
  gap: 12px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.dashboard-card {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(220, 38, 38, 0.1);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.4s ease;
}

.dashboard-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(16, 21, 29, 0.12);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid rgba(220, 38, 38, 0.1);
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
}

.card-status {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.card-content {
  padding: 24px;
}

.alert-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(220, 38, 38, 0.05);
}

.alert-item:last-child {
  border-bottom: none;
}

.alert-icon {
  font-size: 20px;
  color: var(--accent);
  flex: none;
}

.alert-info {
  flex: 1;
}

.alert-text {
  font-size: 14px;
  color: var(--text-dark);
  margin-bottom: 4px;
}

.alert-time {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.performance-metric {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(220, 38, 38, 0.05);
}

.performance-metric:last-child {
  border-bottom: none;
}

.metric-label {
  font-size: 14px;
  color: var(--text-dim-dark);
}

.metric-value {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
}

.metric-change {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--success);
  letter-spacing: 0.04em;
}

.sales-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 120px;
  margin-bottom: 20px;
}

.chart-bar {
  flex: 1;
  background: rgba(220, 38, 38, 0.2);
  border-radius: 4px 4px 0 0;
  transition: background 0.3s ease;
}

.chart-bar--current {
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  box-shadow: 0 0 12px rgba(220, 38, 38, 0.5);
}

.chart-labels {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

.inventory-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(220, 38, 38, 0.05);
}

.inventory-item:last-child {
  border-bottom: none;
}

.item-name {
  font-size: 14px;
  color: var(--text-dim-dark);
  flex: 1;
}

.item-progress {
  flex: 2;
  height: 8px;
  background: rgba(220, 38, 38, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--accent);
  border-radius: 4px;
  transition: width 0.4s ease;
}

.item-percent {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--text-dim-dark);
  width: 40px;
  text-align: right;
}

/* ---------- 云值守 ---------- */

.guard {
  background:
    radial-gradient(1000px 640px at 85% 0%, rgba(220, 38, 38, 0.12), transparent 60%),
    linear-gradient(180deg, var(--ink), var(--ink-2));
  padding: 130px 28px;
}

.guard__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: clamp(44px, 6vw, 96px);
}

.guard__copy h2 {
  margin-bottom: 26px;
}

.guard__lead {
  max-width: 30em;
  color: var(--text-dim);
  font-size: 15px;
  margin-bottom: 34px;
}

.guard__points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.guard__points li {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: rgba(246, 241, 231, 0.82);
  padding-left: 30px;
}

.guard__points li::before {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  content: "";
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(220, 38, 38, 0.16);
  border: 1px solid rgba(220, 38, 38, 0.4);
}

.guard__points li::after {
  position: absolute;
  left: 6px;
  top: 50%;
  transform: translateY(-50%);
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.monitor {
  border: 1px solid var(--line-dark);
  border-radius: 20px;
  padding: 12px;
  background: rgba(7, 10, 16, 0.72);
  box-shadow:
    0 40px 90px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.04),
    0 0 110px rgba(220, 38, 38, 0.1);
}

.monitor__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 10px 12px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: rgba(246, 241, 231, 0.6);
}

.monitor__rec {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #fb7185;
}

.monitor__rec i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fb7185;
  animation: pulse-dot 1.6s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.monitor__cam {
  letter-spacing: 0.08em;
}

.monitor__live {
  color: var(--green);
  border: 1px solid rgba(52, 211, 153, 0.35);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 9.5px;
  letter-spacing: 0.14em;
}

.monitor__screen {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: 12px;
  overflow: hidden;
  background:
    radial-gradient(480px 260px at 30% 30%, rgba(255, 255, 255, 0.05), transparent 65%),
    linear-gradient(160deg, #241616 0%, #150d0d 100%);
}

.monitor__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(220, 38, 38, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(220, 38, 38, 0.05) 1px, transparent 1px);
  background-size: 52px 52px;
}

.monitor__sweep {
  position: absolute;
  left: 0;
  right: 0;
  height: 26%;
  background: linear-gradient(180deg, transparent, rgba(220, 38, 38, 0.05) 45%, rgba(220, 38, 38, 0.16) 50%, rgba(220, 38, 38, 0.05) 55%, transparent);
  animation: monitor-sweep 5s ease-in-out infinite;
}

@keyframes monitor-sweep {
  0%, 100% { top: -26%; }
  50% { top: 100%; }
}

.monitor__alert {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 3;
  font-size: 10.5px;
  color: #ffd3d3;
  background: rgba(220, 38, 38, 0.22);
  border: 1px solid rgba(220, 38, 38, 0.5);
  padding: 5px 10px;
  border-radius: 8px;
  font-family: var(--mono);
  backdrop-filter: blur(4px);
  animation: alert-in 0.8s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

@keyframes alert-in {
  from { opacity: 0; transform: translateY(-8px) scale(0.94); }
  to { opacity: 1; transform: none; }
}

.monitor__corner {
  position: absolute;
  width: 22px;
  height: 22px;
  z-index: 3;
  border-color: rgba(248, 113, 113, 0.8);
  border-style: solid;
}

.monitor__corner--tl { top: 12px; left: 12px; border-width: 2px 0 0 2px; }
.monitor__corner--tr { top: 12px; right: 12px; border-width: 2px 2px 0 0; }
.monitor__corner--bl { bottom: 12px; left: 12px; border-width: 0 0 2px 2px; }
.monitor__corner--br { bottom: 12px; right: 12px; border-width: 0 2px 2px 0; }

.monitor__shelf {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 6%;
  height: 30%;
  background: linear-gradient(180deg, #2a1a1a, #1c1111);
  border-radius: 10px 10px 4px 4px;
  opacity: 0.9;
}

.monitor__till {
  position: absolute;
  right: 16%;
  bottom: 30%;
  width: 10%;
  height: 14%;
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  border-radius: 5px 5px 2px 2px;
  opacity: 0.85;
  box-shadow: 0 0 26px rgba(220, 38, 38, 0.5);
}

.monitor__person {
  position: absolute;
  left: 24%;
  bottom: 30%;
  width: 42px;
  height: 84px;
  background: rgba(246, 241, 231, 0.09);
  border-radius: 20px 20px 8px 8px;
}

.monitor__person::before {
  content: "";
  position: absolute;
  top: -18px;
  left: 50%;
  width: 26px;
  height: 26px;
  transform: translateX(-50%);
  background: rgba(246, 241, 231, 0.12);
  border-radius: 50%;
}

.monitor__timeline {
  display: grid;
  grid-template-columns: repeat(15, 1fr);
  gap: 6px;
  padding: 14px 8px 4px;
}

.monitor__tick {
  height: 5px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.1);
  transition: background-color 0.3s ease;
}

.monitor__tick.is-past {
  background: rgba(220, 38, 38, 0.65);
}

.monitor__tick.is-now {
  background: var(--accent);
  box-shadow: 0 0 10px rgba(220, 38, 38, 0.8);
}

/* ---------- 页脚 ---------- */

.site-footer {
  background: #120b0b;
  border-top: 1px solid var(--line-dark);
  padding: 56px 28px 44px;
}

.site-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 28px;
}

.brand--footer .brand__name {
  color: var(--text-dim);
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
}

.site-footer__nav a {
  font-size: 13px;
  color: var(--text-dim);
  transition: color 0.2s ease;
}

.site-footer__nav a:hover {
  color: var(--accent-soft);
}

.site-footer__legal {
  width: 100%;
  text-align: center;
  font-size: 12px;
  color: rgba(246, 241, 231, 0.36);
  line-height: 1.9;
}

.site-footer__legal span {
  font-size: 11px;
}

.site-footer__legal a {
  color: inherit;
  transition: color 0.2s ease;
}

.site-footer__legal a:hover {
  color: var(--accent-soft);
}

/* ---------- 滚动渐现 ---------- */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity 0.75s ease,
    transform 0.75s cubic-bezier(0.2, 0.7, 0.2, 1);
  transition-delay: calc(var(--d, 0) * 90ms);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1020px) {
  .site-nav {
    display: none;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: calc(var(--header-h) + 44px);
    text-align: center;
  }

  .hero__copy {
    margin: 0 auto;
  }

  .hero__lead {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__cta,
  .hero__meta {
    justify-content: center;
  }

  .hero__dashboard .dashboard {
    width: min(480px, 92vw);
  }

  .product-highlights__head {
    text-align: center;
  }

  .highlights-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .dashboard-section__head {
    text-align: center;
  }

  .dashboard-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .features__inner,
  .guard__inner {
    grid-template-columns: 1fr;
  }

  .features__lead {
    position: static;
  }

  .guard {
    padding-top: 110px;
  }

  .proof__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 48px;
  }

  .proof__live {
    margin-bottom: 0;
  }

  .figure {
    padding: 38px 26px 34px;
  }

  .highlights__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 22px;
    margin-bottom: 56px;
  }

  .hl-card__visual {
    height: 180px;
  }
}

@media (max-width: 600px) {
  .site-header__inner {
    padding: 0 18px;
  }

  .hero__inner {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero__title {
    font-size: clamp(44px, 13vw, 64px);
  }

  .hero__lead {
    font-size: 14.5px;
  }

  .dashboard {
    width: 100%;
  }

  .dashboard__metrics {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .highlights-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .proof,
  .features,
  .dashboard-section,
  .guard {
    padding: 88px 20px;
  }

  .proof__head {
    margin-bottom: 40px;
  }

  .proof__figures {
    grid-template-columns: 1fr 1fr;
  }

  .figure {
    padding: 30px 16px 28px;
  }

  .figure:nth-child(3),
  .figure:nth-child(4) {
    border-top: 1px solid var(--line-light);
  }

  .figure:nth-child(2) {
    padding-left: 16px;
  }

  .figure:nth-child(4) {
    padding-left: 16px;
  }

  .figure:nth-child(3) {
    border-left: 0;
    padding-left: 0;
  }

  .feature-row {
    grid-template-columns: 40px 42px 1fr;
    gap: 12px;
    padding: 24px 2px;
  }

  .feature-row__arrow {
    display: none;
  }

  .monitor__cam {
    display: none;
  }

  .monitor__bar {
    justify-content: space-between;
  }

  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}