/* 悦通管家 PC 官网：以 1920×1080 为主要设计视口，并兼容常见桌面与窄屏浏览器。 */
:root {
  --blue: #1769ff;
  --blue-dark: #0c42b9;
  --cyan: #32c7f4;
  --green: #27c997;
  --orange: #ff963e;
  --ink: #102044;
  --muted: #68789b;
  --line: #e7eefb;
  --page: #f7faff;
  --white: #fff;
  --shadow: 0 24px 70px rgba(35, 80, 160, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.site-header {
  position: fixed;
  z-index: 50;
  inset: 0 0 auto;
  height: 84px;
  border-bottom: 1px solid rgba(220, 231, 250, 0.82);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
}

.header-inner,
.hero-grid,
.hero-stats,
.section,
.experience,
.footer-inner {
  width: min(1440px, calc(100% - 96px));
  margin-inline: auto;
}

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.brand img {
  filter: drop-shadow(0 7px 14px rgba(23, 105, 255, 0.24));
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 42px;
  margin-left: 124px;
  color: #455578;
  font-size: 15px;
  font-weight: 600;
}

.site-nav a {
  position: relative;
  padding: 31px 0 28px;
}

.site-nav a::after {
  position: absolute;
  right: 50%;
  bottom: 18px;
  left: 50%;
  height: 3px;
  border-radius: 3px;
  background: var(--blue);
  content: "";
  transition: left 0.2s ease, right 0.2s ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--blue);
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  right: 24%;
  left: 24%;
}

.header-cta {
  margin-left: auto;
  padding: 13px 24px;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(135deg, #1769ff, #35a6ff);
  box-shadow: 0 10px 24px rgba(23, 105, 255, 0.24);
  font-size: 14px;
  font-weight: 700;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 1080px;
  padding-top: 84px;
  background:
    radial-gradient(circle at 77% 36%, rgba(72, 188, 255, 0.14), transparent 28%),
    linear-gradient(180deg, #f7faff 0%, #f5f9ff 79%, #fff 100%);
}

.hero::before {
  position: absolute;
  inset: 84px 0 auto;
  height: 620px;
  opacity: 0.45;
  background-image: linear-gradient(rgba(55, 115, 225, 0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(55, 115, 225, 0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(90deg, transparent, #000 30%, #000 75%, transparent);
  content: "";
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(1px);
}

.hero-orb--one {
  top: 205px;
  right: -120px;
  width: 430px;
  height: 430px;
  border: 92px solid rgba(48, 174, 255, 0.08);
}

.hero-orb--two {
  top: 590px;
  left: -130px;
  width: 300px;
  height: 300px;
  border: 72px solid rgba(23, 105, 255, 0.06);
}

.hero-grid {
  position: relative;
  z-index: 2;
  min-height: 800px;
  display: grid;
  grid-template-columns: 54% 46%;
  align-items: center;
  padding: 48px 0 18px;
}

.hero-copy {
  padding: 20px 0 0 8px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px;
  border: 1px solid #dce9ff;
  border-radius: 999px;
  color: var(--blue);
  background: rgba(255, 255, 255, 0.75);
  box-shadow: 0 8px 28px rgba(36, 92, 182, 0.08);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.eyebrow span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #27c997;
  box-shadow: 0 0 0 5px rgba(39, 201, 151, 0.13);
}

.hero h1 {
  margin: 32px 0 24px;
  font-size: clamp(58px, 4.3vw, 82px);
  line-height: 1.14;
  letter-spacing: -0.035em;
}

.hero h1 em {
  color: transparent;
  background: linear-gradient(100deg, #1769ff 0%, #22b7eb 88%);
  background-clip: text;
  font-style: normal;
}

.hero-lead {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 56px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 29px;
  border-radius: 14px;
  font-size: 16px;
  font-weight: 750;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.button--primary {
  color: #fff;
  background: linear-gradient(135deg, #1769ff, #2998ff);
  box-shadow: 0 16px 34px rgba(23, 105, 255, 0.28);
}

.button--ghost {
  border: 1px solid #dbe6f8;
  color: #31507e;
  background: rgba(255, 255, 255, 0.82);
}

.wechat-mark {
  display: inline-grid;
  width: 23px;
  height: 23px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: #20c76b;
  font-size: 10px;
}

.hero-points {
  display: flex;
  gap: 28px;
  margin: 30px 0 0;
  padding: 0;
  color: #536486;
  font-size: 14px;
  list-style: none;
}

.hero-points li {
  display: flex;
  align-items: center;
  gap: 7px;
}

.hero-points i {
  display: inline-grid;
  width: 19px;
  height: 19px;
  place-items: center;
  border-radius: 50%;
  color: var(--blue);
  background: #e9f2ff;
  font-style: normal;
  font-weight: 900;
}

.hero-visual {
  position: relative;
  height: 700px;
}

.preview-backdrop {
  position: absolute;
  top: 62px;
  right: 32px;
  width: 540px;
  height: 540px;
  border-radius: 50%;
  background: linear-gradient(145deg, rgba(36, 120, 255, 0.13), rgba(58, 211, 234, 0.18));
  box-shadow: inset 0 0 0 72px rgba(255, 255, 255, 0.25);
}

.preview-backdrop::after {
  position: absolute;
  inset: 48px;
  border: 1px dashed rgba(23, 105, 255, 0.28);
  border-radius: 50%;
  content: "";
}

.phone {
  position: absolute;
  z-index: 3;
  top: 4px;
  right: 130px;
  width: 318px;
  height: 690px;
  overflow: hidden;
  padding: 11px;
  border: 9px solid #152d5a;
  border-radius: 48px;
  background: #fff;
  box-shadow: 0 35px 75px rgba(18, 63, 139, 0.28), inset 0 0 0 1px rgba(255, 255, 255, 0.75);
  transform: rotate(2.4deg);
}

.phone::after {
  position: absolute;
  inset: 0;
  border-radius: 38px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.7);
  content: "";
  pointer-events: none;
}

.phone__speaker {
  position: absolute;
  z-index: 4;
  top: 6px;
  left: 50%;
  width: 106px;
  height: 24px;
  border-radius: 0 0 15px 15px;
  background: #152d5a;
  transform: translateX(-50%);
}

.phone img {
  width: 100%;
  height: 100%;
  border-radius: 32px;
  object-fit: cover;
  object-position: center top;
}

.feature-float {
  position: absolute;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border: 1px solid rgba(219, 232, 255, 0.9);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 42px rgba(27, 75, 149, 0.16);
  backdrop-filter: blur(12px);
}

.feature-float--top {
  top: 110px;
  left: 5px;
}

.feature-float--bottom {
  right: -8px;
  bottom: 116px;
}

.feature-float__icon,
.feature-float__chart {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(135deg, #27c997, #48ddae);
  font-size: 21px;
  font-weight: 900;
}

.feature-float__chart {
  background: linear-gradient(135deg, #1769ff, #5b9cff);
}

.feature-float__chart i {
  width: 21px;
  height: 14px;
  border-left: 3px solid #fff;
  border-bottom: 3px solid #fff;
  transform: skewY(-30deg);
}

.feature-float span:last-child {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.feature-float b {
  font-size: 14px;
}

.feature-float small {
  color: #8492ac;
  font-size: 11px;
}

.hero-stats {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(3, 1fr) 1.2fr;
  min-height: 130px;
  overflow: hidden;
  border: 1px solid #e4edfc;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 20px 60px rgba(28, 70, 140, 0.1);
}

.hero-stats > div {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  border-right: 1px solid var(--line);
}

.hero-stats strong {
  color: var(--blue);
  font-size: 40px;
  line-height: 1;
}

.hero-stats span {
  color: #69799a;
  font-size: 14px;
}

.hero-stats__note {
  border-right: 0 !important;
  color: #fff;
  background: linear-gradient(135deg, #1769ff, #2bb9ef);
}

.hero-stats__note i {
  width: 45px;
  height: 45px;
  border: 11px solid rgba(255, 255, 255, 0.95);
  border-radius: 14px;
  box-shadow: inset 0 0 0 4px rgba(255, 255, 255, 0.24);
}

.hero-stats__note span,
.hero-stats__note b {
  color: #fff;
}

.hero-stats__note b {
  font-size: 19px;
}

.section {
  padding: 120px 0;
}

.section-heading {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-heading > span,
.section-kicker {
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.section-heading h2,
.method-copy h2,
.experience h2 {
  margin: 18px 0 16px;
  font-size: 42px;
  line-height: 1.26;
  letter-spacing: -0.02em;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.feature-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.feature-card {
  position: relative;
  overflow: hidden;
  min-height: 330px;
  padding: 35px 32px;
  border: 1px solid #e6eefb;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 16px 50px rgba(34, 78, 148, 0.08);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.feature-card::after {
  position: absolute;
  right: -48px;
  bottom: -62px;
  width: 160px;
  height: 160px;
  border: 32px solid rgba(23, 105, 255, 0.05);
  border-radius: 50%;
  content: "";
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 60px rgba(34, 78, 148, 0.14);
}

.feature-card__icon {
  display: grid;
  width: 60px;
  height: 60px;
  place-items: center;
  border-radius: 18px;
  color: #fff;
  background: linear-gradient(135deg, #1769ff, #58a9ff);
  box-shadow: 0 12px 24px rgba(23, 105, 255, 0.22);
  font-size: 25px;
  font-weight: 900;
}

.feature-card--green .feature-card__icon { background: linear-gradient(135deg, #22b987, #54d9ae); }
.feature-card--orange .feature-card__icon { background: linear-gradient(135deg, #ff8836, #ffb357); }
.feature-card--purple .feature-card__icon { background: linear-gradient(135deg, #7359ea, #a78df7); }

.feature-card h3 {
  margin: 27px 0 13px;
  font-size: 23px;
}

.feature-card p {
  min-height: 79px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}

.feature-card > span {
  position: absolute;
  bottom: 34px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 750;
}

.method {
  width: 100%;
  padding: 110px max(48px, calc((100vw - 1440px) / 2));
  background: var(--page);
}

.method-panel {
  display: grid;
  grid-template-columns: 55% 45%;
  overflow: hidden;
  border: 1px solid #e2ebfa;
  border-radius: 32px;
  background: #fff;
  box-shadow: var(--shadow);
}

.method-visual {
  position: relative;
  min-height: 610px;
  overflow: hidden;
  background: #1d8df6;
}

.method-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.method-copy {
  padding: 72px 76px;
}

.method-copy h2 {
  font-size: 40px;
}

.method-copy ol {
  display: grid;
  gap: 22px;
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
}

.method-copy li {
  display: flex;
  align-items: center;
  gap: 18px;
}

.method-copy li > b {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 14px;
  color: var(--blue);
  background: #edf4ff;
  font-size: 13px;
}

.method-copy li > span {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.method-copy strong {
  font-size: 16px;
}

.method-copy small {
  color: var(--muted);
  font-size: 13px;
}

.experience {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 110px;
  margin-bottom: 110px;
  padding: 64px 76px;
  border-radius: 30px;
  color: #fff;
  background:
    radial-gradient(circle at 82% 20%, rgba(80, 225, 255, 0.5), transparent 32%),
    linear-gradient(135deg, #135ee7, #188eea 60%, #27b9e6);
  box-shadow: 0 28px 70px rgba(23, 105, 255, 0.25);
}

.experience .section-kicker,
.experience p {
  color: rgba(255, 255, 255, 0.78);
}

.experience h2 {
  margin-bottom: 10px;
}

.experience p {
  margin: 0;
  font-size: 15px;
}

.button--light {
  flex: 0 0 auto;
  color: var(--blue);
  background: #fff;
  box-shadow: 0 15px 34px rgba(5, 59, 146, 0.22);
}

footer {
  color: #aeb9cf;
  background: #0d1c39;
}

.footer-inner {
  display: flex;
  min-height: 132px;
  align-items: center;
  gap: 28px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 11px;
}

.footer-brand > span {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-brand b {
  color: #fff;
  font-size: 17px;
}

.footer-brand small {
  font-size: 11px;
}

.footer-company {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0 auto;
  text-align: center;
}

.footer-company p {
  margin: 0;
  font-size: 12px;
}

.footer-company p span {
  color: #64718a;
}

.footer-legal {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 7px;
  font-size: 12px;
}

.footer-legal a {
  color: #d3dbea;
}

.footer-legal a:hover {
  color: #fff;
}

@media (max-width: 1280px) {
  .header-inner,
  .hero-grid,
  .hero-stats,
  .section,
  .experience,
  .footer-inner { width: min(1160px, calc(100% - 56px)); }
  .site-nav { margin-left: 70px; }
  .hero-grid { grid-template-columns: 52% 48%; }
  .phone { right: 82px; }
  .feature-float--top { left: -18px; }
  .feature-float--bottom { right: -12px; }
  .method { padding-inline: 48px; }
  .method-copy { padding: 60px 50px; }
}

@media (max-width: 980px) {
  .site-nav { display: none; }
  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; padding-top: 110px; }
  .hero-copy { text-align: center; }
  .hero-lead { margin-inline: auto; }
  .hero-actions,
  .hero-points { justify-content: center; }
  .hero-visual { margin-top: 50px; }
  .preview-backdrop { right: 50%; transform: translateX(50%); }
  .phone { right: 50%; transform: translateX(50%) rotate(2deg); }
  .feature-float--top { left: 12%; }
  .feature-float--bottom { right: 10%; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); margin-bottom: 70px; }
  .hero-stats > div { min-height: 112px; }
  .feature-cards { grid-template-columns: repeat(2, 1fr); }
  .method-panel { grid-template-columns: 1fr; }
  .method-visual { min-height: 420px; }
}

@media (max-width: 640px) {
  .header-inner,
  .hero-grid,
  .hero-stats,
  .section,
  .experience,
  .footer-inner { width: min(100% - 32px, 540px); }
  .site-header { height: 72px; }
  .brand { font-size: 18px; }
  .brand img { width: 36px; height: 36px; }
  .header-cta { padding: 11px 15px; font-size: 12px; }
  .hero h1 { font-size: 44px; }
  .hero-lead { font-size: 16px; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .hero-points { flex-wrap: wrap; gap: 12px 20px; }
  .hero-visual { height: 620px; transform: scale(0.86); transform-origin: top center; }
  .feature-float--top { left: -10%; }
  .feature-float--bottom { right: -10%; }
  .hero-stats { grid-template-columns: 1fr; }
  .hero-stats > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .section { padding: 82px 0; }
  .section-heading h2,
  .method-copy h2,
  .experience h2 { font-size: 32px; }
  .feature-cards { grid-template-columns: 1fr; }
  .method { padding: 74px 16px; }
  .method-visual { min-height: 260px; }
  .method-copy { padding: 44px 28px; }
  .experience { display: block; margin-block: 70px; padding: 44px 28px; }
  .experience .button { margin-top: 28px; }
  .footer-inner { flex-direction: column; justify-content: center; padding: 32px 0; }
  .footer-company { margin: 0; }
  .footer-legal { align-items: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}