:root {
  --navy-950: #071a2e;
  --navy-900: #0b233d;
  --navy-800: #123657;
  --navy-700: #1c4b73;
  --gold-600: #b88746;
  --gold-500: #c99a5a;
  --gold-200: #ead8be;
  --ink-900: #132238;
  --ink-700: #435168;
  --ink-500: #718096;
  --paper: #f7f4ee;
  --paper-deep: #efe9df;
  --white: #ffffff;
  --line: #e5e8ec;
  --success: #256c5a;
  --shadow-sm: 0 8px 24px rgba(16, 42, 67, 0.07);
  --shadow-md: 0 20px 50px rgba(16, 42, 67, 0.12);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --container: 1200px;
  --font-sans: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  overflow-x: clip;
}

body {
  margin: 0;
  color: var(--ink-900);
  background: var(--white);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

body.menu-open {
  overflow: hidden;
}

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

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

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

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

h1,
h2,
h3,
h4,
p,
ul,
ol,
blockquote {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

ul,
ol {
  padding-left: 1.25rem;
}

::selection {
  color: var(--white);
  background: var(--navy-700);
}

.skip-link {
  position: fixed;
  z-index: 9999;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  color: var(--white);
  background: var(--navy-950);
  transform: translateY(-160%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.narrow-container {
  width: min(calc(100% - 40px), 860px);
  margin-inline: auto;
}

.section {
  padding: 92px 0;
}

.section-sm {
  padding: 64px 0;
}

.section-paper {
  background:
    radial-gradient(circle at 10% 20%, rgba(184, 135, 70, 0.06), transparent 32%),
    linear-gradient(180deg, #fbfaf7, var(--paper));
}

.section-navy {
  color: var(--white);
  background:
    radial-gradient(circle at 88% 20%, rgba(201, 154, 90, 0.15), transparent 28%),
    linear-gradient(135deg, var(--navy-950), var(--navy-800));
}

.section-heading {
  max-width: 700px;
  margin: 0 auto 46px;
  text-align: center;
}

.section-heading.align-left {
  margin-left: 0;
  text-align: left;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--gold-600);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 28px;
  height: 1px;
  content: "";
  background: currentColor;
}

.section-heading h2,
.page-section-title {
  margin-bottom: 14px;
  color: var(--ink-900);
  font-size: clamp(30px, 4vw, 44px);
}

.section-navy .section-heading h2,
.section-navy .page-section-title {
  color: var(--white);
}

.section-heading p {
  margin-bottom: 0;
  color: var(--ink-500);
}

.section-navy .section-heading p {
  color: rgba(255, 255, 255, 0.7);
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 11px 24px;
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 700;
  line-height: 1.4;
  transition: transform 0.2s ease, box-shadow 0.2s ease, color 0.2s ease, background 0.2s ease;
}

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

.button-primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--gold-600), var(--gold-500));
  box-shadow: 0 10px 24px rgba(184, 135, 70, 0.22);
}

.button-outline {
  color: var(--navy-900);
  border-color: var(--gold-600);
  background: rgba(255, 255, 255, 0.7);
}

.button-dark {
  color: var(--white);
  background: var(--navy-950);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--navy-800);
  font-size: 14px;
  font-weight: 700;
}

.text-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.text-link:hover::after {
  transform: translateX(4px);
}

/* Header */
.topbar {
  color: rgba(255, 255, 255, 0.78);
  background: var(--navy-950);
  font-size: 12px;
}

.topbar-inner {
  display: flex;
  min-height: 34px;
  align-items: center;
  justify-content: space-between;
}

.topbar-group {
  display: flex;
  align-items: center;
  gap: 24px;
}

.topbar span,
.topbar a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  border-bottom: 1px solid rgba(19, 34, 56, 0.08);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  transition: box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 8px 30px rgba(16, 42, 67, 0.09);
}

.header-inner {
  display: flex;
  width: min(calc(100% - 32px), 1280px);
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 11px;
  color: var(--ink-900);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand-mark {
  width: 50px;
  height: 50px;
  background: url("../images/logo-mark-web.png") center / contain no-repeat;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 7px;
}

.main-nav > a,
.main-nav .nav-link {
  position: relative;
  padding: 28px 14px 25px;
  color: #39475c;
  font-size: 14px;
  font-weight: 600;
}

.main-nav > a::after,
.main-nav .nav-link::after {
  position: absolute;
  right: 14px;
  bottom: 17px;
  left: 14px;
  height: 2px;
  content: "";
  background: var(--gold-600);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.2s ease;
}

.main-nav > a:hover,
.main-nav > a.active,
.main-nav .nav-link:hover {
  color: var(--gold-600);
}

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

.main-nav .header-cta {
  min-height: 42px;
  align-self: center;
  margin-left: 6px;
  padding: 9px 20px !important;
  border-radius: 7px;
  color: var(--white);
  line-height: 1.35;
}

.main-nav .header-cta::after {
  display: none;
}

.main-nav .header-cta:hover {
  color: var(--white);
  background: linear-gradient(135deg, #a87432, #bd8842);
  box-shadow: 0 10px 24px rgba(184, 135, 70, 0.3);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px auto;
  background: var(--navy-900);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.home-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 20%, rgba(201, 154, 90, 0.12), transparent 32%),
    linear-gradient(180deg, #fbfaf7 0%, var(--paper) 100%);
}

.home-hero::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background-image: radial-gradient(rgba(17, 36, 60, 0.05) 0.7px, transparent 0.7px);
  background-size: 9px 9px;
  mask-image: linear-gradient(to right, transparent, #000 75%, transparent);
}

.hero-inner {
  position: relative;
  display: grid;
  min-height: 580px;
  align-items: center;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 42px;
  padding-block: 76px 92px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 610px;
}

.hero-copy h1 {
  margin-bottom: 24px;
  color: var(--ink-900);
  font-size: clamp(42px, 4.5vw, 62px);
  line-height: 1.24;
}

.hero-copy p {
  max-width: 570px;
  margin-bottom: 28px;
  color: var(--ink-700);
  font-size: 17px;
}

.hero-copy .hero-intro {
  margin-bottom: 8px;
}

.hero-copy .hero-research {
  color: var(--ink-500);
  font-size: 15px;
}

/* Learning */
.learning-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.learning-column {
  position: relative;
  padding: 30px 28px 22px;
  overflow: hidden;
  border: 1px solid rgba(184, 135, 70, 0.22);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-sm);
}

.learning-column::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  content: "";
  background: linear-gradient(90deg, var(--gold-600), var(--gold-200));
}

.learning-kicker {
  color: var(--gold-600);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.learning-column h3 {
  margin: 5px 0 15px;
  font-size: 23px;
}

.learning-links {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: learning-item;
}

.learning-links li {
  counter-increment: learning-item;
}

.learning-links li + li {
  border-top: 1px solid var(--line);
}

.learning-links a {
  display: grid;
  align-items: center;
  grid-template-columns: 25px minmax(0, 1fr) 14px;
  gap: 7px;
  padding: 12px 0;
  color: var(--ink-700);
  font-size: 15px;
  line-height: 1.55;
  transition: color 0.2s ease, transform 0.2s ease;
}

.learning-links a::before {
  color: var(--gold-600);
  content: counter(learning-item, decimal-leading-zero);
  font-size: 11px;
  font-weight: 700;
}

.learning-links a::after {
  color: var(--gold-600);
  content: "›";
  font-size: 20px;
  line-height: 1;
}

.learning-links a:hover {
  color: var(--gold-600);
  transform: translateX(2px);
}

.learning-more {
  margin-top: 32px;
  text-align: center;
}

.learning-article-list {
  display: grid;
  gap: 28px;
}

.learning-article {
  scroll-margin-top: 100px;
  padding: 36px 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.learning-article:target {
  border-color: var(--gold-500);
  box-shadow: 0 20px 50px rgba(184, 135, 70, 0.16);
}

.learning-article h2 {
  margin: 7px 0 16px;
  font-size: 28px;
}

.learning-article p,
.learning-article li {
  color: var(--ink-700);
}

.learning-article ul {
  margin: 16px 0 0;
  padding-left: 22px;
}

.learning-back {
  display: inline-flex;
  margin-top: 18px;
  color: var(--gold-600);
  font-size: 14px;
  font-weight: 700;
}

/* WeChat QR */
.wechat-float {
  position: fixed;
  z-index: 900;
  right: 24px;
  bottom: 24px;
  width: 180px;
  padding: 12px;
  border: 1px solid rgba(184, 135, 70, 0.28);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 16px 42px rgba(16, 42, 67, 0.2);
  text-align: center;
}

.wechat-float img {
  width: 154px;
  height: auto;
  margin-inline: auto;
  border-radius: 8px;
}

.wechat-float strong,
.wechat-float span {
  display: block;
}

.wechat-float strong {
  margin-top: 8px;
  color: var(--ink-900);
  font-size: 16px;
}

.wechat-float span {
  color: var(--ink-500);
  font-size: 12px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 30px;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  color: var(--ink-700);
  font-size: 14px;
}

.trust-row span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.trust-row span::before {
  display: inline-grid;
  width: 24px;
  height: 24px;
  content: "✓";
  place-items: center;
  border: 1px solid var(--gold-500);
  border-radius: 50%;
  color: var(--gold-600);
  font-size: 12px;
  font-weight: 700;
}

.hero-visual {
  position: relative;
  min-height: 440px;
}

.orbit {
  position: absolute;
  inset: 8px 5% 0 5%;
  border: 1px solid rgba(184, 135, 70, 0.45);
  border-radius: 50%;
  transform: rotate(-10deg);
}

.orbit::before,
.orbit::after {
  position: absolute;
  width: 8px;
  height: 8px;
  content: "";
  border-radius: 50%;
  background: var(--gold-600);
}

.orbit::before {
  top: 17%;
  left: -2px;
}

.orbit::after {
  right: 3%;
  bottom: 15%;
}

.document-stack {
  position: absolute;
  top: 75px;
  right: 12%;
  width: 310px;
  height: 310px;
  transform: rotate(7deg);
}

.paper-sheet {
  position: absolute;
  width: 245px;
  height: 300px;
  border: 1px solid rgba(19, 34, 56, 0.08);
  border-radius: 2px;
  background: linear-gradient(145deg, #fff, #f7f7f5);
  box-shadow: var(--shadow-md);
}

.paper-sheet:nth-child(1) {
  top: 18px;
  left: 42px;
  transform: rotate(5deg);
}

.paper-sheet:nth-child(2) {
  top: 10px;
  left: 22px;
  transform: rotate(-2deg);
}

.paper-sheet:nth-child(3) {
  top: 0;
  left: 0;
  overflow: hidden;
}

.paper-sheet:nth-child(3)::before {
  display: block;
  height: 85px;
  content: "";
  background: var(--navy-900);
}

.paper-sheet:nth-child(3)::after {
  position: absolute;
  top: 112px;
  right: 38px;
  left: 38px;
  height: 105px;
  content: "";
  background: repeating-linear-gradient(to bottom, #d9dde1 0 2px, transparent 2px 14px);
}

.pen {
  position: absolute;
  z-index: 4;
  right: 12px;
  bottom: 65px;
  width: 230px;
  height: 18px;
  border: 1px solid #101820;
  border-radius: 12px 3px 3px 12px;
  background:
    linear-gradient(90deg, #b48137 0 4%, #111a23 5% 37%, #d1a055 38% 42%, #111a23 43% 86%, #d1a055 87% 91%, #111a23 92%);
  box-shadow: 0 10px 16px rgba(0, 0, 0, 0.2);
  transform: rotate(-32deg);
}

.pen::after {
  position: absolute;
  top: 2px;
  right: -23px;
  content: "";
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 24px solid #c89a53;
}

.mini-chart {
  position: absolute;
  right: -12px;
  bottom: 44px;
  display: flex;
  width: 98px;
  height: 82px;
  align-items: flex-end;
  gap: 8px;
  padding: 12px;
  border-bottom: 2px solid var(--navy-800);
}

.mini-chart i {
  display: block;
  flex: 1;
  background: linear-gradient(var(--gold-500), var(--navy-700));
}

.mini-chart i:nth-child(1) { height: 28%; }
.mini-chart i:nth-child(2) { height: 50%; }
.mini-chart i:nth-child(3) { height: 72%; }
.mini-chart i:nth-child(4) { height: 90%; }

.donut {
  position: absolute;
  right: 1%;
  bottom: 140px;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: conic-gradient(var(--gold-500) 0 28%, var(--navy-800) 28% 76%, #dfe5ea 76%);
}

.donut::after {
  position: absolute;
  inset: 20px;
  content: "";
  border-radius: 50%;
  background: var(--paper);
}

.year-labels {
  position: absolute;
  top: 100px;
  left: 6px;
  display: grid;
  gap: 46px;
  color: var(--ink-500);
  font-size: 11px;
}

/* Metrics */
.metrics-wrap {
  position: relative;
  z-index: 4;
  margin-top: -48px;
}

.metrics {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-sm);
  grid-template-columns: repeat(4, 1fr);
}

.metric {
  position: relative;
  display: flex;
  min-height: 126px;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 24px;
}

.metric:not(:last-child)::after {
  position: absolute;
  top: 28px;
  right: 0;
  bottom: 28px;
  width: 1px;
  content: "";
  background: var(--line);
}

.metric-icon,
.service-icon,
.benefit-icon,
.process-icon {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  color: var(--navy-800);
  border: 1px solid var(--gold-200);
  border-radius: 50%;
  font-size: 0 !important;
}

.metric-icon > img,
.service-icon > img,
.benefit-icon > img,
.process-icon > img {
  display: block;
  width: 28px;
  height: 28px;
  object-fit: contain;
  transform: translateY(2px);
}

.metric-icon {
  width: 58px;
  height: 58px;
}

.metric-icon > img,
.service-icon > img {
  width: 30px;
  height: 30px;
}

.metric strong {
  display: block;
  color: var(--ink-900);
  font-size: 25px;
  line-height: 1.15;
}

.metric span {
  color: var(--ink-700);
  font-size: 13px;
}

/* Services */
.service-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(6, 1fr);
}

.service-card {
  display: flex;
  min-height: 290px;
  flex-direction: column;
  padding: 28px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.service-card:hover {
  border-color: var(--gold-200);
  box-shadow: var(--shadow-sm);
  transform: translateY(-5px);
}

.service-icon {
  width: 58px;
  height: 58px;
  margin-bottom: 20px;
  border-radius: 13px;
}

.service-card h3 {
  margin-bottom: 12px;
  font-size: 20px;
}

.service-card p {
  flex: 1;
  margin-bottom: 18px;
  color: var(--ink-500);
  font-size: 13px;
}

/* Benefits */
.benefit-layout {
  display: grid;
  align-items: center;
  grid-template-columns: 1fr 1fr;
  gap: 58px;
}

.desk-scene {
  position: relative;
  min-height: 410px;
  overflow: hidden;
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, transparent 47%, rgba(184, 135, 70, 0.2) 47% 48%, transparent 48%),
    linear-gradient(145deg, #d6cab8, #f3eee5 55%, #b7a38a);
  box-shadow: var(--shadow-md);
}

.desk-scene .desk-paper {
  position: absolute;
  top: 72px;
  left: 14%;
  width: 68%;
  height: 245px;
  border: 1px solid rgba(184, 135, 70, 0.26);
  background: linear-gradient(145deg, #faf9f5, #eee8df);
  box-shadow: 0 18px 30px rgba(55, 43, 29, 0.22);
  transform: rotate(-7deg);
}

.desk-scene .desk-paper::before,
.desk-scene .desk-paper::after {
  position: absolute;
  content: "";
  background: var(--gold-500);
}

.desk-scene .desk-paper::before {
  right: 24px;
  bottom: 24px;
  left: 24px;
  height: 1px;
}

.desk-scene .desk-paper::after {
  top: 24px;
  right: 24px;
  bottom: 24px;
  width: 1px;
}

.desk-scene .pen {
  right: 15%;
  bottom: 46%;
}

.benefit-copy h2 {
  margin-bottom: 28px;
  font-size: clamp(30px, 4vw, 42px);
}

.benefit-list {
  display: grid;
  gap: 0;
}

.benefit-item {
  display: grid;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px dashed #d8dee4;
  grid-template-columns: 48px 1fr;
}

.benefit-icon {
  width: 50px;
  height: 50px;
}

.benefit-icon > img {
  width: 27px;
  height: 27px;
}

.benefit-item h3 {
  margin-bottom: 3px;
  font-size: 18px;
}

.benefit-item p {
  margin-bottom: 0;
  color: var(--ink-500);
  font-size: 13px;
}

/* Process */
.process-panel {
  padding: 38px 42px 42px;
  border-radius: var(--radius-md);
  color: var(--white);
  background:
    radial-gradient(circle at 85% 15%, rgba(201, 154, 90, 0.14), transparent 30%),
    linear-gradient(135deg, var(--navy-950), var(--navy-800));
  box-shadow: var(--shadow-md);
}

.process-panel h2 {
  margin-bottom: 30px;
  text-align: center;
  font-size: 30px;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.process-item {
  position: relative;
  padding: 0 24px;
  text-align: center;
}

.process-item:not(:last-child)::after {
  position: absolute;
  top: 30px;
  right: -20px;
  width: 40px;
  content: "····→";
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 3px;
}

.process-icon {
  width: 68px;
  height: 68px;
  margin: 0 auto 16px;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.38);
}

.process-icon > img {
  width: 32px;
  height: 32px;
}

.process-item h3 {
  margin-bottom: 8px;
  font-size: 18px;
}

.process-item h3 span {
  margin-right: 7px;
  color: var(--gold-500);
}

.process-item p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
}

/* Cases */
.case-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, 1fr);
}

.case-card {
  display: grid;
  min-height: 250px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  box-shadow: 0 10px 28px rgba(16, 42, 67, 0.05);
  grid-template-columns: 42% 58%;
}

.case-cover {
  position: relative;
  display: flex;
  min-height: 250px;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px;
  overflow: hidden;
  color: var(--white);
  background: linear-gradient(160deg, var(--navy-800), var(--navy-950));
}

.case-cover::before,
.case-cover::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(201, 154, 90, 0.42);
  transform: rotate(-28deg);
}

.case-cover::before {
  right: -50px;
  bottom: 46px;
  width: 180px;
  height: 45px;
}

.case-cover::after {
  right: -60px;
  bottom: 72px;
  width: 190px;
  height: 65px;
}

.case-cover.light {
  color: var(--ink-900);
  background: linear-gradient(150deg, #f8f8f6, #dfe4e9);
}

.case-cover.mountain {
  background:
    linear-gradient(155deg, transparent 50%, rgba(19, 54, 87, 0.72) 51% 65%, transparent 66%),
    linear-gradient(135deg, #f4f5f5, #cbd5dd);
}

.case-cover small {
  position: relative;
  z-index: 1;
  opacity: 0.7;
}

.case-cover strong {
  position: relative;
  z-index: 1;
  font-size: 20px;
}

.case-body {
  display: flex;
  flex-direction: column;
  padding: 26px 22px;
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.case-tags span,
.tag {
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-500);
  background: #fafbfc;
  font-size: 11px;
}

.case-body h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

.case-body p {
  flex: 1;
  margin-bottom: 16px;
  color: var(--ink-500);
  font-size: 13px;
}

/* Testimonials */
.testimonial-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, 1fr);
}

.testimonial {
  position: relative;
  padding: 34px 30px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
}

.testimonial::before {
  position: absolute;
  top: 16px;
  left: 22px;
  content: "“";
  color: var(--gold-500);
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
}

.testimonial blockquote {
  margin: 16px 0 18px;
  color: var(--ink-700);
  font-size: 14px;
}

.testimonial footer {
  color: var(--ink-900);
  font-size: 13px;
  font-weight: 700;
  text-align: right;
}

/* CTA and footer */
.cta-panel {
  position: relative;
  display: flex;
  overflow: hidden;
  min-height: 148px;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 34px 54px;
  border-radius: var(--radius-md);
  color: var(--white);
  background: linear-gradient(130deg, var(--navy-900), var(--navy-700));
}

.cta-panel::after {
  position: absolute;
  right: -85px;
  bottom: -120px;
  width: 300px;
  height: 240px;
  content: "";
  border: 1px solid rgba(201, 154, 90, 0.45);
  border-radius: 50%;
  box-shadow: 0 0 0 32px rgba(201, 154, 90, 0.05), 0 0 0 64px rgba(201, 154, 90, 0.04);
}

.cta-panel h2 {
  margin-bottom: 6px;
  font-size: clamp(26px, 4vw, 36px);
}

.cta-panel p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.7);
}

.cta-panel .button {
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
}

.site-footer {
  color: rgba(255, 255, 255, 0.68);
  background: var(--navy-950);
}

.footer-grid {
  display: grid;
  gap: 54px;
  padding: 58px 0 44px;
  grid-template-columns: 1.35fr 0.75fr 0.75fr 1fr;
}

.footer-brand .brand {
  margin-bottom: 18px;
  color: var(--white);
}

.footer-brand .brand-mark {
  border-radius: 12px;
  background-color: var(--white);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.16);
}

.footer-brand p {
  max-width: 300px;
  margin-bottom: 0;
  font-size: 13px;
}

.footer-column h3 {
  margin-bottom: 16px;
  color: var(--white);
  font-size: 15px;
}

.footer-column ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-column a,
.footer-column li {
  font-size: 13px;
}

.footer-column a:hover {
  color: var(--gold-500);
}

.copyright {
  display: flex;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  font-size: 12px;
}

/* Inner pages */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 72px 0 78px;
  color: var(--white);
  background:
    radial-gradient(circle at 78% 20%, rgba(201, 154, 90, 0.2), transparent 28%),
    linear-gradient(135deg, var(--navy-950), var(--navy-700));
}

.page-hero::after {
  position: absolute;
  top: -120px;
  right: 7%;
  width: 380px;
  height: 380px;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  box-shadow: 0 0 0 45px rgba(255, 255, 255, 0.025), 0 0 0 90px rgba(255, 255, 255, 0.02);
}

.page-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
}

.breadcrumb span:not(:last-child)::after,
.breadcrumb a::after {
  margin-left: 8px;
  content: "/";
  opacity: 0.5;
}

.page-hero h1 {
  margin-bottom: 16px;
  font-size: clamp(38px, 5vw, 58px);
}

.page-hero p {
  max-width: 650px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.72);
}

@media (min-width: 921px) {
  .page-hero-inner,
  .page-hero p {
    max-width: none;
  }

  .page-hero h1,
  .page-hero p {
    white-space: nowrap;
  }
}

.content-grid {
  display: grid;
  align-items: start;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 56px;
}

.article-content {
  min-width: 0;
}

.article-content h2 {
  margin: 48px 0 18px;
  font-size: 28px;
}

.article-content h2:first-child {
  margin-top: 0;
}

.article-content h3 {
  margin: 32px 0 12px;
  font-size: 21px;
}

.article-content p,
.article-content li {
  color: var(--ink-700);
}

.article-content img {
  border-radius: var(--radius-sm);
}

.article-lead {
  padding: 24px 26px;
  border-left: 3px solid var(--gold-600);
  color: var(--ink-700);
  background: var(--paper);
  font-size: 17px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 30px;
  color: var(--ink-500);
  font-size: 13px;
}

.sidebar-card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.sidebar-card + .sidebar-card {
  margin-top: 22px;
}

.sidebar-card h2,
.sidebar-card h3 {
  margin-bottom: 16px;
  font-size: 18px;
}

.side-links {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.side-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-700);
  font-size: 14px;
}

.side-links a::after {
  content: "→";
  color: var(--gold-600);
}

.side-links a:hover,
.side-links a.active {
  color: var(--gold-600);
}

.feature-list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  display: grid;
  gap: 4px;
  padding-left: 24px;
}

.feature-list li::before {
  position: absolute;
  margin-top: 2px;
  margin-left: -24px;
  content: "✓";
  color: var(--gold-600);
  font-weight: 700;
}

.feature-list strong {
  color: var(--ink-900);
}

.feature-list span {
  color: var(--ink-500);
  font-size: 13px;
}

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

.info-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  box-shadow: 0 10px 30px rgba(16, 42, 67, 0.04);
}

.info-card .number {
  display: block;
  margin-bottom: 12px;
  color: var(--gold-600);
  font-size: 32px;
  font-weight: 700;
}

.info-card h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

.info-card p {
  margin-bottom: 0;
  color: var(--ink-500);
  font-size: 14px;
}

.news-list {
  display: grid;
  gap: 20px;
}

.news-card {
  display: grid;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
  grid-template-columns: 240px 1fr;
}

.news-thumb {
  position: relative;
  min-height: 190px;
  overflow: hidden;
  background:
    linear-gradient(145deg, transparent 50%, rgba(201, 154, 90, 0.25) 51% 53%, transparent 54%),
    linear-gradient(135deg, var(--navy-900), var(--navy-700));
}

.news-thumb::before,
.news-thumb::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.18);
  transform: rotate(-24deg);
}

.news-thumb::before {
  inset: 44px -45px 54px 60px;
}

.news-thumb::after {
  inset: 70px -50px 30px 35px;
}

.news-body {
  padding: 24px 28px;
}

.news-body time {
  display: block;
  margin-bottom: 8px;
  color: var(--gold-600);
  font-size: 12px;
}

.news-body h2,
.news-body h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.news-body p {
  margin-bottom: 16px;
  color: var(--ink-500);
  font-size: 14px;
}

.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}

.pagination a,
.pagination span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--white);
  font-size: 14px;
}

.pagination .active,
.pagination a:hover {
  color: var(--white);
  border-color: var(--navy-800);
  background: var(--navy-800);
}

.contact-grid {
  display: grid;
  align-items: start;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
}

.contact-list {
  display: grid;
  gap: 18px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.contact-list li {
  padding: 18px 20px;
  border-left: 3px solid var(--gold-600);
  background: var(--paper);
}

.contact-list strong {
  display: block;
  margin-bottom: 2px;
}

.contact-list span,
.contact-list a {
  color: var(--ink-500);
  font-size: 14px;
}

.contact-form {
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
  box-shadow: var(--shadow-md);
}

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

.form-field {
  display: grid;
  gap: 8px;
}

.form-field.full {
  grid-column: 1 / -1;
}

.form-field label {
  color: var(--ink-700);
  font-size: 14px;
  font-weight: 700;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid #d9dfe5;
  border-radius: 6px;
  outline: none;
  color: var(--ink-900);
  background: #fcfcfb;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-field textarea {
  min-height: 140px;
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--gold-600);
  box-shadow: 0 0 0 3px rgba(184, 135, 70, 0.12);
}

.form-status {
  margin: 12px 0 0;
  color: var(--ink-500);
  font-size: 12px;
}

.form-status {
  color: var(--success);
  font-weight: 700;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-list details {
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--white);
}

.faq-list summary {
  cursor: pointer;
  color: var(--ink-900);
  font-weight: 700;
}

.faq-list p {
  margin: 14px 0 0;
  color: var(--ink-500);
  font-size: 14px;
}

.timeline {
  position: relative;
  display: grid;
  gap: 28px;
  margin-top: 36px;
  padding-left: 36px;
}

.timeline::before {
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 9px;
  width: 1px;
  content: "";
  background: var(--gold-200);
}

.timeline-item {
  position: relative;
}

.timeline-item::before {
  position: absolute;
  top: 8px;
  left: -33px;
  width: 13px;
  height: 13px;
  content: "";
  border: 3px solid var(--white);
  border-radius: 50%;
  background: var(--gold-600);
  box-shadow: 0 0 0 1px var(--gold-600);
}

.timeline-item time {
  color: var(--gold-600);
  font-size: 13px;
  font-weight: 700;
}

.timeline-item h3 {
  margin: 4px 0 6px;
}

.timeline-item p {
  margin-bottom: 0;
  color: var(--ink-500);
}

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

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

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

@media (max-width: 1100px) {
  .header-inner {
    gap: 16px;
  }

  .main-nav > a,
  .main-nav .nav-link {
    padding-inline: 11px;
    font-size: 14px;
  }

  .main-nav .header-cta {
    padding-inline: 12px !important;
  }

  .service-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .service-card {
    min-height: 250px;
  }

  .case-card {
    grid-template-columns: 1fr;
  }

  .case-cover {
    min-height: 190px;
  }
}

@media (max-width: 920px) {
  body {
    padding-top: 68px;
  }

  .topbar {
    display: none;
  }

  .site-header {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .header-inner {
    width: min(calc(100% - 40px), 1280px);
    min-height: 68px;
  }

  .brand {
    font-size: 21px;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    z-index: 1001;
    top: 68px;
    right: 0;
    bottom: 0;
    display: grid;
    width: min(82vw, 360px);
    height: auto;
    align-content: start;
    gap: 0;
    padding: 18px 24px 40px;
    overflow-y: auto;
    background: var(--white);
    box-shadow: -18px 0 38px rgba(16, 42, 67, 0.15);
    transform: translateX(105%);
    transition: transform 0.25s ease;
  }

  .main-nav.is-open {
    transform: translateX(0);
  }

  .main-nav > a,
  .main-nav .nav-link {
    padding: 15px 4px;
    border-bottom: 1px solid var(--line);
    font-size: 15px;
  }

  .main-nav > a::after,
  .main-nav .nav-link::after {
    display: none;
  }

  .main-nav .header-cta {
    min-height: 46px;
    align-self: stretch;
    margin-left: 0;
    margin-top: 18px;
    padding: 11px 20px !important;
    color: var(--white);
  }

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

  .hero-inner {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-block: 64px 88px;
  }

  .hero-copy {
    max-width: 680px;
  }

  .hero-visual {
    min-height: 400px;
  }

  .metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .metric:nth-child(2)::after {
    display: none;
  }

  .metric:nth-child(-n+2)::before {
    position: absolute;
    right: 28px;
    bottom: 0;
    left: 28px;
    height: 1px;
    content: "";
    background: var(--line);
  }

  .benefit-layout,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .process-grid {
    gap: 28px 0;
    grid-template-columns: repeat(2, 1fr);
  }

  .process-item:nth-child(2)::after {
    display: none;
  }

  .case-grid,
  .testimonial-grid,
  .info-cards {
    grid-template-columns: 1fr 1fr;
  }

  .testimonial-grid .testimonial:last-child,
  .info-cards .info-card:last-child {
    grid-column: 1 / -1;
  }

  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }

  .footer-column:last-child {
    grid-column: 1 / -1;
  }

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

  .content-sidebar {
    display: grid;
    gap: 20px;
    grid-template-columns: 1fr 1fr;
  }

  .sidebar-card + .sidebar-card {
    margin-top: 0;
  }
}

@media (max-width: 640px) {
  .container,
  .narrow-container {
    width: min(calc(100% - 40px), var(--container));
  }

  .section {
    padding: 68px 0;
  }

  .section-sm {
    padding: 48px 0;
  }

  .learning-column,
  .learning-article {
    padding: 26px 22px;
  }

  .learning-article h2 {
    font-size: 24px;
  }

  .wechat-float {
    right: 12px;
    bottom: 12px;
    width: 138px;
    padding: 8px;
    border-radius: 11px;
  }

  .wechat-float img {
    width: 120px;
  }

  .wechat-float strong {
    margin-top: 5px;
    font-size: 14px;
  }

  .wechat-float span {
    font-size: 11px;
  }

  .header-inner {
    min-height: 64px;
  }

  .main-nav {
    top: 64px;
  }

  .brand {
    gap: 9px;
    font-size: 19px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .hero-inner {
    gap: 20px;
    padding-block: 48px 76px;
  }

  .hero-copy h1 {
    font-size: 38px;
  }

  .hero-copy p {
    font-size: 15px;
  }

  .hero-actions .button {
    flex: 1 1 0;
    min-width: 140px;
    padding-inline: 16px;
  }

  .trust-row {
    gap: 12px 16px;
  }

  .hero-visual {
    min-height: 330px;
  }

  .document-stack {
    top: 48px;
    right: 8%;
    transform: scale(0.78) rotate(7deg);
    transform-origin: top right;
  }

  .orbit {
    inset: 0 2% 0;
  }

  .year-labels {
    left: 3px;
  }

  .mini-chart,
  .donut {
    transform: scale(0.82);
    transform-origin: right bottom;
  }

  .metrics-wrap {
    margin-top: -34px;
  }

  .metrics {
    border-radius: 12px;
  }

  .metric {
    min-height: 112px;
    gap: 10px;
    padding: 18px 12px;
  }

  .metric-icon {
    width: 48px;
    height: 48px;
  }

  .metric-icon > img {
    width: 25px;
    height: 25px;
  }

  .metric strong {
    font-size: 21px;
  }

  .service-grid {
    gap: 12px;
    grid-template-columns: repeat(2, 1fr);
  }

  .service-card {
    min-height: 240px;
    padding: 22px 16px 18px;
  }

  .service-card h3 {
    font-size: 18px;
  }

  .desk-scene {
    min-height: 320px;
  }

  .process-panel {
    padding: 30px 16px;
  }

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

  .process-item {
    display: grid;
    align-items: center;
    gap: 2px 16px;
    padding: 10px 8px;
    text-align: left;
    grid-template-columns: 58px 1fr;
  }

  .process-item::after {
    display: none;
  }

  .process-icon {
    margin: 0;
    grid-row: 1 / 3;
  }

  .process-item h3 {
    margin: 0;
  }

  .case-grid,
  .testimonial-grid,
  .info-cards,
  .content-sidebar {
    grid-template-columns: 1fr;
  }

  .testimonial-grid .testimonial:last-child,
  .info-cards .info-card:last-child,
  .footer-column:last-child {
    grid-column: auto;
  }

  .case-card {
    grid-template-columns: 40% 60%;
  }

  .case-cover {
    min-height: 230px;
    padding: 16px;
  }

  .case-cover strong {
    font-size: 16px;
  }

  .case-body {
    padding: 20px 16px;
  }

  .cta-panel {
    align-items: flex-start;
    flex-direction: column;
    padding: 30px 24px;
  }

  .footer-grid {
    gap: 34px;
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand,
  .footer-column:last-child {
    grid-column: 1 / -1;
  }

  .copyright {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 16px 0;
  }

  .page-hero {
    padding: 56px 0 62px;
  }

  .page-hero h1 {
    font-size: 38px;
  }

  .news-card {
    grid-template-columns: 1fr;
  }

  .news-thumb {
    min-height: 160px;
  }

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

  .form-field.full {
    grid-column: auto;
  }

  .contact-form {
    padding: 26px 20px;
  }
}

@media (max-width: 420px) {
  .hero-copy h1 {
    font-size: 34px;
  }

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

  .service-card {
    min-height: 0;
  }

  .case-card {
    grid-template-columns: 1fr;
  }

  .case-cover {
    min-height: 180px;
  }

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

  .footer-brand,
  .footer-column:last-child {
    grid-column: auto;
  }
}