:root {
  --primary: #165dff;
  --primary-600: #0e4bd6;
  --primary-700: #0a3aa8;
  --primary-soft: #eaf1ff;
  --cyan: #00c8ff;
  --teal: #1fd0a3;
  --violet: #7b61ff;
  --navy: #071a3d;
  --ink: #0c1b33;
  --body: #5b6980;
  --muted: #8a94a8;
  --line: #e6ecf7;
  --bg: #f6f9ff;
  --white: #fff;
  --grad: linear-gradient(135deg, #165dff 0%, #00c8ff 100%);
  --shadow-sm: 0 2px 8px rgba(12, 27, 51, 0.06);
  --shadow-md: 0 10px 30px rgba(12, 27, 51, 0.09);
  --shadow-lg: 0 24px 60px rgba(11, 37, 84, 0.16);
  --radius: 16px;
  --radius-lg: 22px;
  --container: 1200px;
  --header-h: 76px;
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

h1,
h2,
h3,
h4,
h5 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.3;
}

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 92px 0;
  position: relative;
}

.section--tint {
  background: var(--bg);
}

.section--dark {
  background: radial-gradient(1000px 500px at 15% 0%, rgba(22, 93, 255, 0.35), transparent 60%), radial-gradient(800px 420px at 90% 100%, rgba(0, 200, 255, 0.22), transparent 60%), var(--navy);
  color: rgba(255, 255, 255, 0.78);
}

.section--dark h2,
.section--dark h3,
.section--dark .section-title {
  color: #fff;
}

.section-head {
  max-width: 720px;
  margin-bottom: 52px;
}

.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary);
  margin-bottom: 14px;
}

.kicker::before {
  content: "";
  width: 22px;
  height: 3px;
  border-radius: 3px;
  background: var(--grad);
}

.section--dark .kicker {
  color: #7fd6ff;
}

.section-title {
  font-size: clamp(26px, 3.2vw, 38px);
  letter-spacing: 0.5px;
}

.section-title em {
  font-style: normal;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-desc {
  margin-top: 16px;
  font-size: 16px;
  color: var(--body);
}

.section--dark .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--primary-soft);
  color: var(--primary);
}

.badge--light {
  background: rgba(255, 255, 255, 0.14);
  color: #cfe8ff;
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--body);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 10px 24px rgba(22, 93, 255, 0.32);
}

.btn-primary:hover {
  box-shadow: 0 16px 34px rgba(22, 93, 255, 0.42);
  color: #fff;
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(6px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.btn-outline {
  border-color: var(--line);
  color: var(--ink);
  background: #fff;
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}

.btn-light:hover {
  color: var(--primary-600);
}

.btn-sm {
  padding: 9px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 15px 36px;
  font-size: 16px;
}

.btn .arr {
  transition: transform 0.25s ease;
}

.btn:hover .arr {
  transform: translateX(4px);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--primary);
}

.link-arrow svg {
  width: 16px;
  height: 16px;
  transition: transform 0.25s ease;
}

.link-arrow:hover svg {
  transform: translateX(4px);
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease, height 0.3s ease;
}

.site-header .header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 100%;
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 14, 36, 0.55), transparent);
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.site-header.is-scrolled {
  height: 66px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  box-shadow: 0 6px 24px rgba(12, 27, 51, 0.08);
}

.site-header.is-scrolled::before {
  opacity: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: #fff;
  z-index: 2;
}

.brand-icon {
  width: 42px;
  height: 42px;
  flex: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 1px;
}

.brand-sub {
  font-size: 9.5px;
  letter-spacing: 2.2px;
  opacity: 0.68;
  font-weight: 600;
}

.site-header.is-scrolled .brand,
.site-header.is-scrolled .main-nav a,
.site-header.is-scrolled .header-phone {
  color: var(--ink);
}

.main-nav {
  margin-left: auto;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav a {
  position: relative;
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.88);
  border-radius: 8px;
  transition: color 0.25s ease, background 0.25s ease;
}

.main-nav a:hover {
  color: #fff;
}

.site-header.is-scrolled .main-nav a:hover {
  color: var(--primary);
  background: var(--primary-soft);
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2.5px;
  border-radius: 2px;
  background: var(--grad);
  transform: scaleX(0);
  transition: transform 0.25s ease;
}

.main-nav a.is-active::after,
.main-nav a:hover::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 100;
}

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}

.header-phone svg {
  width: 16px;
  height: 16px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.12);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.site-header.is-scrolled .nav-toggle {
  background: var(--primary-soft);
}

.site-header.is-scrolled .nav-toggle span {
  background: var(--ink);
}

body.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

body.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

body.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

body.nav-open .nav-toggle {
  background: var(--primary-soft);
}

body.nav-open .nav-toggle span {
  background: var(--ink);
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7, 26, 61, 0.5);
  backdrop-filter: blur(3px);
  z-index: 90;
}

.hero {
  position: relative;
  min-height: min(100vh, 900px);
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 60px) 0 80px;
  background: radial-gradient(900px 480px at 12% 18%, rgba(22, 93, 255, 0.5), transparent 62%), radial-gradient(760px 460px at 88% 78%, rgba(0, 200, 255, 0.3), transparent 60%), radial-gradient(600px 400px at 70% 0%, rgba(123, 97, 255, 0.28), transparent 60%), var(--navy);
  color: rgba(255, 255, 255, 0.8);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(80% 70% at 50% 40%, #000 30%, transparent 100%);
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.55;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.07);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  color: #bfe6ff;
  margin-bottom: 24px;
}

.hero-kicker .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(31, 208, 163, 0.25);
  animation: pulse 2.4s ease infinite;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 4px rgba(31, 208, 163, 0.22);
  }
  50% {
    box-shadow: 0 0 0 9px rgba(31, 208, 163, 0.06);
  }
}

.hero-title {
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.22;
  color: #fff;
  letter-spacing: 1px;
}

.hero-title .grad {
  background: linear-gradient(100deg, #7fd6ff, #00c8ff 40%, #9ef5d8);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-desc {
  margin-top: 22px;
  max-width: 560px;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.72);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 36px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, auto);
  gap: 14px;
  margin-top: 52px;
  max-width: 620px;
}

.hero-stats .stat {
  padding: 14px 18px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
}

.hero-stats .num {
  font-size: 26px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

.hero-stats .num small {
  font-size: 14px;
  margin-left: 2px;
  color: #7fd6ff;
}

.hero-stats .lbl {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.62);
  margin-top: 2px;
}

.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 84px) 0 84px;
  background: radial-gradient(760px 380px at 20% 0%, rgba(22, 93, 255, 0.55), transparent 60%), radial-gradient(600px 340px at 85% 100%, rgba(0, 200, 255, 0.3), transparent 60%), var(--navy);
  color: rgba(255, 255, 255, 0.75);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(70% 90% at 40% 30%, #000 20%, transparent 100%);
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 18px;
}

.breadcrumbs a:hover {
  color: #7fd6ff;
}

.breadcrumbs .sep {
  opacity: 0.5;
}

.page-hero h1 {
  font-size: clamp(30px, 4vw, 46px);
  color: #fff;
  letter-spacing: 1px;
}

.page-hero p {
  margin-top: 16px;
  max-width: 640px;
  font-size: 16.5px;
  color: rgba(255, 255, 255, 0.72);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.visual-panel {
  position: relative;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 30px 70px rgba(2, 10, 30, 0.45);
  padding: 18px;
  backdrop-filter: blur(10px);
}

.visual-panel::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(127, 214, 255, 0.6), transparent 45%, rgba(31, 208, 163, 0.4));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.visual-panel--light {
  background: #fff;
  border-color: var(--line);
  box-shadow: var(--shadow-lg);
}

.visual-panel--light::after {
  background: linear-gradient(135deg, rgba(22, 93, 255, 0.28), transparent 50%, rgba(0, 200, 255, 0.2));
}

.mock-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.visual-panel--light .mock-bar {
  border-color: var(--line);
}

.mock-bar i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.28);
}

.visual-panel--light .mock-bar i {
  background: var(--line);
}

.mock-bar i:first-child {
  background: #ff6b6b;
}

.mock-bar i:nth-child(2) {
  background: #ffd166;
}

.mock-bar i:nth-child(3) {
  background: #1fd0a3;
}

.mock-url {
  margin-left: 10px;
  font-size: 11.5px;
  letter-spacing: 0.5px;
  color: rgba(255, 255, 255, 0.45);
}

.visual-panel--light .mock-url {
  color: var(--muted);
}

.mock-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}

.mock-kpi {
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.visual-panel--light .mock-kpi {
  background: var(--bg);
  border-color: var(--line);
}

.mock-kpi .k-label {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.55);
}

.visual-panel--light .k-label {
  color: var(--muted);
}

.mock-kpi .k-num {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  margin-top: 2px;
}

.visual-panel--light .k-num {
  color: var(--ink);
}

.mock-kpi .k-num span {
  font-size: 11px;
  margin-left: 3px;
  color: #1fd0a3;
}

.mock-chart {
  display: flex;
  align-items: flex-end;
  gap: 9px;
  height: 132px;
  padding: 12px 10px 0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 12px;
}

.visual-panel--light .mock-chart {
  background: linear-gradient(180deg, #f2f7ff, #fff);
  border-color: var(--line);
}

.mock-chart span {
  flex: 1;
  height: var(--h, 40%);
  border-radius: 6px 6px 3px 3px;
  background: linear-gradient(180deg, #7fd6ff, #165dff);
  transform-origin: bottom;
  animation: growBar 1.1s cubic-bezier(0.22, 1, 0.36, 1) backwards;
  animation-delay: var(--d, 0s);
}

@keyframes growBar {
  from {
    transform: scaleY(0.05);
    opacity: 0.3;
  }
  to {
    transform: scaleY(1);
    opacity: 1;
  }
}

.mock-rows {
  display: grid;
  gap: 8px;
}

.mock-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.06);
}

.visual-panel--light .mock-row {
  background: var(--bg);
}

.mock-row .r-avatar {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  background: var(--grad);
  flex: none;
}

.mock-row .r-line {
  height: 7px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.18);
  flex: 1;
}

.visual-panel--light .r-line {
  background: #dfe7f5;
}

.mock-row .r-line.short {
  max-width: 70px;
}

.mock-row .r-pill {
  font-size: 10.5px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(31, 208, 163, 0.18);
  color: #7ff0d0;
  flex: none;
}

.visual-panel--light .r-pill {
  background: rgba(31, 208, 163, 0.14);
  color: #0f9c78;
}

.hero-visual {
  position: relative;
}

.float-chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow-lg);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink);
  animation: floatY 5s ease-in-out infinite;
  z-index: 2;
}

.float-chip .chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--grad);
}

.float-chip--1 {
  top: -18px;
  right: 22px;
}

.float-chip--2 {
  bottom: -16px;
  left: 26px;
  animation-delay: 1.4s;
}

@keyframes floatY {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-9px);
  }
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-item {
  text-align: center;
  padding: 28px 16px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-item .counter {
  font-size: clamp(32px, 3.6vw, 44px);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
}

.stat-item .counter .suffix {
  font-size: 20px;
  color: #7fd6ff;
  margin-left: 3px;
}

.stat-item .stat-label {
  margin-top: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}

.stat-strip--light .stat-item {
  background: #fff;
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.stat-strip--light .counter {
  color: var(--ink);
}

.stat-strip--light .stat-label {
  color: var(--body);
}