/* ============ ROOT VARIABLES ============ */
:root {
  --c-deep: #0a1f44;
  --c-navy: #1d3a73;
  --c-blue: #007bc1;
  --c-cyan: #00adef;
  --c-cyan-light: #4cb1e5;
  --c-bg: #f6fbff;
  --c-bg-alt: #eaf4fc;
  --c-text: #0f172a;
  --c-text-soft: #475569;
  --c-text-mute: #94a3b8;
  --c-line: rgba(29, 58, 115, 0.08);
  --c-white: #ffffff;

  --shadow-sm: 0 4px 12px rgba(13, 47, 96, 0.06);
  --shadow-md: 0 12px 32px rgba(13, 47, 96, 0.10);
  --shadow-lg: 0 24px 60px rgba(13, 47, 96, 0.15);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --font-cn: "Noto Serif SC", -apple-system, "PingFang SC", "Microsoft YaHei", serif;
  --font-en: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: transparent; }

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ============ COMMON ============ */
.section-head { text-align: center; margin-bottom: 56px; }
.section-eyebrow {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--c-blue);
  margin-bottom: 14px;
  text-transform: uppercase;
}
.section-eyebrow.light { color: var(--c-cyan); }
.section-title {
  font-family: var(--font-cn);
  font-size: 44px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--c-deep);
  letter-spacing: -0.01em;
}
.section-title.light { color: var(--c-white); }
.accent-text {
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
}
.section-deco {
  width: 56px;
  height: 4px;
  margin: 22px auto;
  background: linear-gradient(90deg, var(--c-blue), var(--c-cyan));
  border-radius: 4px;
}
.section-lead {
  font-family: var(--font-cn);
  font-size: 16px;
  color: var(--c-text-soft);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.85;
}
.section-lead.light { color: rgba(255,255,255,0.78); }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s var(--ease);
  cursor: pointer;
  font-family: var(--font-cn);
  white-space: nowrap;
}
.btn-arrow { transition: transform 0.3s var(--ease); display: inline-block; }
.btn:hover .btn-arrow { transform: translateX(4px); }
.btn-primary {
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  color: var(--c-white);
  box-shadow: 0 8px 24px rgba(0, 173, 239, 0.32);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(0, 173, 239, 0.42);
}
.btn-ghost {
  background: rgba(255,255,255,0.08);
  color: var(--c-white);
  border: 1.5px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.5);
}
.btn-block { width: 100%; justify-content: center; }

/* ============ NAVIGATION ============ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(29, 58, 115, 0.05);
  transition: all 0.3s var(--ease);
}
.nav.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-logo img { height: 48px; width: auto; }
.nav-logo-text { line-height: 1.1; }
.brand-name {
  font-family: var(--font-cn);
  font-size: 18px;
  font-weight: 800;
  color: var(--c-deep);
  letter-spacing: 0.04em;
}
.brand-en {
  font-size: 10px;
  font-weight: 600;
  color: var(--c-blue);
  letter-spacing: 0.16em;
  margin-top: 2px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.nav-links a {
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--c-text);
  border-radius: 8px;
  transition: all 0.2s var(--ease);
  font-family: var(--font-cn);
}
.nav-links a:hover { color: var(--c-blue); background: rgba(0, 123, 193, 0.08); }
.nav-links a.nav-cta {
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  color: var(--c-white);
  padding: 10px 22px;
  margin-left: 8px;
  font-weight: 600;
}
.nav-links a.nav-cta:hover {
  color: var(--c-white);
  background: linear-gradient(135deg, var(--c-navy), var(--c-blue));
  transform: translateY(-1px);
}
.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-deep);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}

/* ============ 1. HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 160px 0 100px;
  display: flex;
  align-items: center;
  background: linear-gradient(160deg, #0a1f44 0%, #1d3a73 45%, #007bc1 100%);
  overflow: hidden;
  color: var(--c-white);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 38%;
  opacity: 0.8;
  animation: heroImgIn 2s var(--ease);
  filter: saturate(1.08) contrast(1.04) brightness(0.98);
}
@keyframes heroImgIn {
  from { opacity: 0; transform: scale(1.08); }
  to { opacity: 0.55; transform: scale(1); }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    /* radial spotlight: brightest at center where tower meets title */
    radial-gradient(ellipse 45% 55% at 50% 48%,
      rgba(10, 31, 68, 0.05) 0%,
      rgba(10, 31, 68, 0.25) 35%,
      rgba(10, 31, 68, 0.6) 70%,
      rgba(10, 31, 68, 0.85) 100%),
    /* left fade: darken the bridge area (no distraction) */
    linear-gradient(90deg,
      rgba(10, 31, 68, 0.5) 0%,
      rgba(10, 31, 68, 0.15) 30%,
      rgba(10, 31, 68, 0) 50%),
    /* bottom fade: deep blue for text contrast */
    linear-gradient(180deg,
      rgba(10, 31, 68, 0.2) 0%,
      rgba(10, 31, 68, 0.35) 35%,
      rgba(10, 31, 68, 0.7) 70%,
      rgba(10, 31, 68, 0.9) 100%),
    /* subtle brand tint */
    linear-gradient(135deg,
      rgba(29, 58, 115, 0.2) 0%,
      rgba(0, 123, 193, 0.12) 100%);
  z-index: 1;
}
.hero-grid { z-index: 2; }
.hero-glow { z-index: 3; }
.hero-stars { z-index: 4; }
.hero-content { z-index: 5; }
.hero-grid {
  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: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}
.hero-glow-1 { width: 480px; height: 480px; background: var(--c-cyan); top: -150px; right: -100px; }
.hero-glow-2 { width: 600px; height: 600px; background: var(--c-blue); bottom: -200px; left: -200px; opacity: 0.3; }

.hero-stars {
  position: absolute;
  top: 6%;
  right: 6%;
  width: 160px;
  max-width: 160px;
  opacity: 0.35;
}
.stars-g { animation: float 8s ease-in-out infinite; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-content {
  position: relative;
  z-index: 5;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 0 32px;
  text-align: center;
  /* Pull content slightly up so tower body shows below title */
  transform: translateY(-4vh);
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: rgba(0, 173, 239, 0.15);
  border: 1px solid rgba(0, 173, 239, 0.4);
  border-radius: 999px;
  font-size: 14px;
  font-family: var(--font-cn);
  font-weight: 500;
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}
.hero-tag-dot {
  width: 8px;
  height: 8px;
  background: var(--c-cyan);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--c-cyan);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.2); }
}
.hero-title {
  font-family: var(--font-cn);
  font-size: clamp(40px, 6vw, 80px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
  text-shadow:
    0 4px 30px rgba(0, 0, 0, 0.5),
    0 2px 8px rgba(0, 0, 0, 0.35);
}
.hero-title-line {
  display: block;
  opacity: 0;
  transform: translateY(20px);
  animation: heroIn 0.9s var(--ease) forwards;
}
.hero-title-line:nth-child(1) { animation-delay: 0.1s; }
.hero-title-line:nth-child(2) { animation-delay: 0.25s; }
.hero-title-line:nth-child(3) { animation-delay: 0.4s; }
@keyframes heroIn { to { opacity: 1; transform: translateY(0); } }
.hero-title-sub {
  font-size: clamp(18px, 2.4vw, 28px) !important;
  font-weight: 600;
  color: var(--c-cyan-light);
}
.hero-title-en {
  font-family: var(--font-en);
  font-size: clamp(14px, 1.6vw, 18px) !important;
  font-weight: 600;
  letter-spacing: 0.3em !important;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 12px;
}

.hero-sub {
  font-family: var(--font-cn);
  font-size: 18px;
  font-weight: 500;
  color: rgba(255,255,255,0.92);
  margin-bottom: 32px;
  letter-spacing: 0.08em;
  opacity: 0;
  animation: heroIn 0.9s var(--ease) 0.55s forwards;
}

.hero-tabs {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 36px;
  opacity: 0;
  animation: heroIn 0.9s var(--ease) 0.7s forwards;
}
.hero-tab {
  padding: 10px 22px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 999px;
  font-family: var(--font-cn);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-white);
  backdrop-filter: blur(8px);
  transition: all 0.3s var(--ease);
}
.hero-tab:hover {
  background: rgba(0, 173, 239, 0.25);
  border-color: var(--c-cyan);
  transform: translateY(-2px);
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: heroIn 0.9s var(--ease) 0.85s forwards;
}

.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3em;
  z-index: 5;
}
.hero-scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(180deg, var(--c-cyan), transparent);
  position: relative;
  overflow: hidden;
}
.hero-scroll-line::after {
  content: '';
  position: absolute;
  top: -10px;
  left: 0;
  width: 1px;
  height: 10px;
  background: var(--c-cyan);
  animation: scrollDot 2s ease-in-out infinite;
}
@keyframes scrollDot {
  0% { top: -10px; opacity: 0; }
  50% { top: 18px; opacity: 1; }
  100% { top: 46px; opacity: 0; }
}

/* ============ 2. CASES (Global Benchmarks) ============ */
.cases { padding: 100px 0; background: var(--c-bg); }

.cases-region-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  padding: 6px;
  background: var(--c-white);
  border-radius: 999px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  border: 1px solid var(--c-line);
}
.cases-region-tab {
  padding: 10px 22px;
  font-family: var(--font-cn);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text-soft);
  border-radius: 999px;
  transition: all 0.3s var(--ease);
}
.cases-region-tab:hover { color: var(--c-blue); }
.cases-region-tab.active {
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  color: var(--c-white);
  box-shadow: 0 4px 16px rgba(0,123,193,0.3);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.case-card {
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.4s var(--ease);
  display: flex;
  flex-direction: column;
  cursor: pointer;
}
.case-card.hidden { display: none; }
.case-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.case-card:hover .case-logo {
  transform: scale(1.05);
}
.case-card:hover .case-overlay {
  background: rgba(0,123,193,0.15);
}
.case-card:active {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.case-banner {
  position: relative;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: var(--c-white);
  background: linear-gradient(135deg, #1d3a73, #007bc1);
}
.case-banner img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.case-card:hover .case-banner img { transform: scale(1.08); }
.case-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(10, 31, 68, 0.4) 0%,
    rgba(10, 31, 68, 0.55) 60%,
    rgba(10, 31, 68, 0.85) 100%);
  z-index: 1;
}
.case-logo {
  position: relative;
  z-index: 2;
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 12px rgba(0,0,0,0.4);
  padding: 0 20px;
  text-align: center;
}
.case-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.case-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.case-loc {
  font-family: var(--font-cn);
  font-size: 12px;
  color: var(--c-text-mute);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.case-loc::before {
  content: '◉';
  color: var(--c-cyan);
  font-size: 10px;
}
.case-tag {
  padding: 3px 10px;
  background: var(--c-bg);
  color: var(--c-blue);
  border-radius: 4px;
  font-family: var(--font-cn);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.case-body h3 {
  font-family: var(--font-cn);
  font-size: 15px;
  font-weight: 700;
  color: var(--c-deep);
  line-height: 1.5;
  margin-bottom: 10px;
}
.case-body > p {
  font-family: var(--font-cn);
  font-size: 12.5px;
  color: var(--c-text-soft);
  line-height: 1.7;
  flex: 1;
}
.case-link {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--c-cyan);
  transition: gap 0.3s var(--ease), color 0.3s var(--ease);
}
.case-card:hover .case-link {
  gap: 8px;
  color: var(--c-blue);
}

/* ============ 3. THEMES ============ */
.themes { padding: 100px 0; background: var(--c-white); }

.themes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.theme-card {
  position: relative;
  background: var(--c-bg);
  border-radius: var(--radius-lg);
  padding: 36px 24px 28px;
  border: 1px solid var(--c-line);
  transition: all 0.4s var(--ease);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.theme-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 80% 20%, rgba(0,173,239,0.18), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
  pointer-events: none;
}
.theme-card:hover {
  transform: translateY(-6px);
  background: linear-gradient(160deg, var(--c-deep), var(--c-navy));
  color: var(--c-white);
  border-color: transparent;
  box-shadow: var(--shadow-md);
}
.theme-card:hover::before { opacity: 1; }

.theme-num {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-cyan);
  letter-spacing: 0.12em;
  margin-bottom: 24px;
}
.theme-card:hover .theme-num { color: var(--c-cyan-light); }

.theme-card h3 {
  font-family: var(--font-cn);
  font-size: 22px;
  font-weight: 700;
  color: var(--c-deep);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
  transition: color 0.3s var(--ease);
}
.theme-card:hover h3 { color: var(--c-white); }

.theme-card p {
  font-family: var(--font-cn);
  font-size: 13px;
  color: var(--c-text-soft);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 20px;
  transition: color 0.3s var(--ease);
}
.theme-card:hover p { color: rgba(255,255,255,0.78); }

.theme-arrow {
  font-size: 24px;
  font-weight: 700;
  color: var(--c-blue);
  transition: all 0.3s var(--ease);
}
.theme-card:hover .theme-arrow {
  color: var(--c-cyan-light);
  transform: translateX(6px);
}

/* ============ 4. ROUTES (Quality Routes) ============ */
.routes {
  padding: 100px 0;
  background: var(--c-deep);
  position: relative;
  overflow: hidden;
}
.routes::before {
  content: '';
  position: absolute;
  top: 0;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,173,239,0.15), transparent 60%);
  pointer-events: none;
}

.routes-showcase {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  position: relative;
  z-index: 1;
}

.route-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 420px;
  display: flex;
  align-items: flex-end;
  cursor: pointer;
  transition: all 0.4s var(--ease);
  background: linear-gradient(135deg, var(--c-navy), var(--c-blue));
}
.route-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}
.route-card-img {
  position: absolute;
  inset: 0;
}
.route-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.route-card:hover .route-card-img img { transform: scale(1.08); }
.route-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(10, 31, 68, 0.85) 100%);
}
.route-card-overseas .route-card-img-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(0, 123, 193, 0.4), rgba(0, 173, 239, 0.6)),
    radial-gradient(circle at 30% 30%, rgba(255,255,255,0.2), transparent 50%);
}
.route-card-info {
  position: relative;
  z-index: 2;
  padding: 28px 22px;
  color: var(--c-white);
  width: 100%;
}
.route-card-tag {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--c-cyan-light);
  margin-bottom: 8px;
  opacity: 0.85;
}
.route-card-info h3 {
  font-family: var(--font-cn);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.3);
}
.route-card-info p {
  font-family: var(--font-cn);
  font-size: 12px;
  color: rgba(255,255,255,0.78);
  letter-spacing: 0.04em;
}

/* ============ 5. PROCESS ============ */
.process {
  padding: 100px 0;
  background: linear-gradient(160deg, #0a1f44 0%, #1d3a73 100%);
  color: var(--c-white);
  position: relative;
  overflow: hidden;
}
.process-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.process-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
}
.process-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(10, 31, 68, 0.92) 0%, rgba(29, 58, 115, 0.88) 100%);
}
.process .container { position: relative; z-index: 2; }

.process-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.process-step { text-align: center; padding: 32px 20px; position: relative; }
.process-step-num {
  font-family: var(--font-en);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-cyan-light);
  letter-spacing: 0.18em;
  margin-bottom: 18px;
  text-shadow: 0 0 12px rgba(76, 177, 229, 0.4);
}
.process-step-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0,173,239,0.15), rgba(0,123,193,0.15));
  border: 2px solid var(--c-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  color: var(--c-cyan);
  transition: all 0.4s var(--ease);
}
.process-step:hover .process-step-icon {
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  color: var(--c-white);
  transform: scale(1.08) rotate(8deg);
  box-shadow: 0 12px 32px rgba(0,173,239,0.4);
}
.process-step h4 {
  font-family: var(--font-cn);
  font-size: 24px;
  font-weight: 700;
  color: #b8e3f5;
  margin-bottom: 10px;
  letter-spacing: 0.04em;
  text-shadow: 0 0 16px rgba(184, 227, 245, 0.25);
}
.process-step p {
  font-family: var(--font-cn);
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  max-width: 200px;
  margin: 0 auto;
}
.process-arrow {
  position: absolute;
  top: 70px;
  right: -16px;
  font-size: 28px;
  color: var(--c-cyan);
  z-index: 2;
  font-weight: 700;
}

/* ============ 6. CLIENTS ============ */
.clients { padding: 100px 0; background: var(--c-bg); }

.clients-subsection { margin-bottom: 48px; }
.clients-subsection:last-child { margin-bottom: 0; }

.clients-subhead {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-line);
}
.clients-subhead-tag {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  color: var(--c-white);
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.clients-subhead h3 {
  font-family: var(--font-cn);
  font-size: 24px;
  font-weight: 700;
  color: var(--c-deep);
  letter-spacing: 0.04em;
}
.clients-subhead-en {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  color: var(--c-text-mute);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-left: auto;
}

.client-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.client-grid-univ { grid-template-columns: repeat(7, 1fr); }

.client-card {
  padding: 22px 16px;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  text-align: center;
  font-family: var(--font-cn);
  font-size: 15px;
  font-weight: 600;
  color: var(--c-deep);
  transition: all 0.3s var(--ease);
  cursor: default;
  position: relative;
  overflow: hidden;
  display: block;
  text-decoration: none;
}
/* 当渲染为 <a> 时启用指针；为可访问性添加焦点环 */
a.client-card { cursor: pointer; }
a.client-card:focus-visible { outline: 2px solid var(--c-blue); outline-offset: 2px; }
.client-card-univ {
  padding: 18px 10px;
  font-size: 13.5px;
}
.client-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0,173,239,0.15), transparent);
  transition: left 0.5s var(--ease);
}
.client-card:hover {
  border-color: var(--c-cyan);
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  color: var(--c-white);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0,123,193,0.25);
}
.client-card:hover::before { left: 100%; }
/* "无详情"卡片（slug 暂未匹配参访方案）— 视觉上略微弱化，提示仍在持续上线 */
.client-card-nolink {
  border-style: dashed;
  background: linear-gradient(135deg, #fafcff, #f4f8fd);
}
.client-card-nolink::after {
  content: '筹备中';
  position: absolute;
  top: 6px;
  right: 6px;
  font-size: 10px;
  color: var(--c-text-mute);
  font-family: var(--font-en);
  letter-spacing: 0.04em;
  background: rgba(0,123,193,0.06);
  padding: 1px 6px;
  border-radius: 6px;
  font-weight: 500;
  pointer-events: none;
}

/* ============ 7. ABOUT (走进魔力探索) ============ */
.about {
  padding: 100px 0;
  background: linear-gradient(160deg, #0a1f44 0%, #1d3a73 100%);
  color: var(--c-white);
  position: relative;
  overflow: hidden;
}
.about::before {
  content: '';
  position: absolute;
  top: 50%;
  left: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,173,239,0.15), transparent 60%);
  pointer-events: none;
}
.about::after {
  content: '';
  position: absolute;
  bottom: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0,173,239,0.12), transparent 60%);
  pointer-events: none;
}
.about .container { position: relative; z-index: 2; }
.about .section-head { margin-bottom: 40px; }
.about .section-eyebrow { color: var(--c-cyan); }
.about .section-title { color: var(--c-white); }
.about .section-lead { color: rgba(255,255,255,0.78); }

.about-subnav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: 0 auto 56px;
  padding: 8px 32px;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  width: fit-content;
}
.about-subnav-link {
  padding: 10px 28px;
  font-family: var(--font-cn);
  font-size: 15px;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  border-radius: 999px;
  transition: all 0.3s var(--ease);
  letter-spacing: 0.06em;
}
.about-subnav-link:hover { color: var(--c-white); background: rgba(0,173,239,0.15); }
.about-subnav-link.active {
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  color: var(--c-white);
  box-shadow: 0 4px 16px rgba(0,173,239,0.3);
}
.about-subnav-divider {
  width: 1px;
  height: 18px;
  background: rgba(255,255,255,0.18);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  padding: 48px 32px;
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  margin-bottom: 56px;
  position: relative;
}
.about-stat {
  text-align: center;
  position: relative;
  transition: transform 0.3s var(--ease);
}
.about-stat:hover {
  transform: translateY(-4px);
}
.about-stat:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 20%;
  right: -10px;
  height: 60%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(255,255,255,0.2), transparent);
}
.about-stat-num {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
  margin-bottom: 12px;
  font-family: var(--font-cn);
  line-height: 1;
}
.num-val {
  font-size: 56px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--c-cyan-light), var(--c-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.num-plus {
  font-size: 28px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--c-cyan-light), var(--c-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.about-stat-label {
  font-family: var(--font-cn);
  font-size: 13px;
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.04em;
  line-height: 1.6;
}
.num-en {
  font-family: var(--font-en);
  font-size: 11px;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.08em;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}
.about-feature {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: all 0.4s var(--ease);
}
.about-feature:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--c-cyan);
  transform: translateY(-4px);
}
.about-feature-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 14px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--c-white);
  font-weight: 700;
}
.about-feature h4 {
  font-family: var(--font-cn);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}
.about-feature p {
  font-family: var(--font-en);
  font-size: 11px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.04em;
}

/* ============ 8. NEWS ============ */
.news { padding: 100px 0; background: var(--c-bg); }

.news-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  grid-template-rows: repeat(2, 1fr);
  gap: 20px;
}
.news-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--c-line);
  transition: all 0.4s var(--ease);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--c-cyan-light);
}

.news-card-feature {
  grid-row: span 2;
}
.news-card-feature .news-img {
  position: relative;
  height: 280px;
  overflow: hidden;
}
.news-card-feature .news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.news-card-feature:hover .news-img img { transform: scale(1.05); }
.news-img-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 4px 12px;
  background: rgba(0, 173, 239, 0.9);
  color: var(--c-white);
  font-family: var(--font-cn);
  font-size: 12px;
  font-weight: 600;
  border-radius: 4px;
  backdrop-filter: blur(8px);
  z-index: 2;
}

.news-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.news-date {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  color: var(--c-blue);
  letter-spacing: 0.06em;
}
.news-cat {
  font-family: var(--font-cn);
  font-size: 11px;
  padding: 2px 8px;
  background: var(--c-bg);
  color: var(--c-text-soft);
  border-radius: 3px;
}

.news-body h3 {
  font-family: var(--font-cn);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-deep);
  line-height: 1.5;
  margin-bottom: 10px;
  transition: color 0.3s var(--ease);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-feature .news-body h3 {
  font-size: 22px;
  -webkit-line-clamp: 3;
}
.news-card:hover .news-body h3 { color: var(--c-blue); }

.news-body p {
  font-family: var(--font-cn);
  font-size: 13px;
  color: var(--c-text-soft);
  line-height: 1.7;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============ 9. CONTACT ============ */
.contact {
  padding: 100px 0;
  background: linear-gradient(160deg, #0a1f44 0%, #1d3a73 50%, #007bc1 100%);
  color: var(--c-white);
  position: relative;
  overflow: hidden;
}
.contact-bg { position: absolute; inset: 0; pointer-events: none; }
.contact-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
}
.contact-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(10, 31, 68, 0.85) 0%, rgba(29, 58, 115, 0.75) 50%, rgba(0, 123, 193, 0.65) 100%);
}
.contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  z-index: 1;
}
.contact .container { position: relative; z-index: 2; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
}
.contact-lead {
  font-family: var(--font-cn);
  font-size: 16px;
  color: rgba(255,255,255,0.78);
  line-height: 1.8;
  margin: 22px 0 36px;
}

.contact-info { display: flex; flex-direction: column; gap: 20px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--ease);
}
.contact-item:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--c-cyan);
  transform: translateX(6px);
}
.contact-icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--c-white);
  font-weight: 700;
}
.contact-label {
  font-family: var(--font-cn);
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.12em;
  margin-bottom: 4px;
  text-transform: uppercase;
}
.contact-value {
  font-family: var(--font-cn);
  font-size: 15px;
  color: var(--c-white);
  line-height: 1.7;
  font-weight: 500;
}
.contact-en {
  font-family: var(--font-en);
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.04em;
}

.contact-form {
  background: rgba(255,255,255,0.97);
  border-radius: var(--radius-xl);
  padding: 36px;
  color: var(--c-text);
  box-shadow: var(--shadow-lg);
}
.contact-form h3 {
  font-family: var(--font-cn);
  font-size: 24px;
  font-weight: 700;
  color: var(--c-deep);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}
.form-sub {
  font-family: var(--font-cn);
  font-size: 13px;
  color: var(--c-text-soft);
  margin-bottom: 24px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.contact-form label { display: block; margin-bottom: 14px; }
.contact-form label > span {
  display: block;
  font-family: var(--font-cn);
  font-size: 12px;
  font-weight: 600;
  color: var(--c-deep);
  margin-bottom: 5px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--c-line);
  border-radius: var(--radius-sm);
  font-family: var(--font-cn);
  font-size: 14px;
  color: var(--c-text);
  background: var(--c-white);
  transition: all 0.2s var(--ease);
  outline: none;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--c-cyan);
  box-shadow: 0 0 0 4px rgba(0,173,239,0.12);
}
.contact-form textarea { resize: vertical; min-height: 70px; }

/* ============ FOOTER ============ */
.footer {
  background: #061630;
  color: rgba(255,255,255,0.7);
  padding: 56px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 36px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.footer-logo img { height: 48px; }
.footer-brand-name {
  font-family: var(--font-cn);
  font-size: 20px;
  font-weight: 800;
  color: var(--c-white);
  letter-spacing: 0.04em;
}
.footer-brand-en {
  font-size: 11px;
  font-weight: 600;
  color: var(--c-cyan);
  letter-spacing: 0.18em;
  margin-top: 2px;
}
.footer-brand p {
  font-family: var(--font-cn);
  font-size: 13px;
  line-height: 1.8;
  margin-bottom: 16px;
}
.footer-contact p {
  font-family: var(--font-cn);
  font-size: 12px;
  color: rgba(255,255,255,0.55);
  line-height: 1.8;
}
.footer-col h5 {
  font-family: var(--font-cn);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 14px;
  letter-spacing: 0.08em;
}
.footer-col a, .footer-col p {
  display: block;
  font-family: var(--font-cn);
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 2;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--c-cyan); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-cn);
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.04em;
}

/* ============ ANIMATIONS ============ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ============ BACK TO TOP ============ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  color: var(--c-white);
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 24px rgba(0,123,193,0.35);
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
  border: 0;
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(0,123,193,0.5);
}

/* ============ TOAST NOTIFICATION ============ */
.toast {
  position: fixed;
  top: 100px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  z-index: 2000;
  padding: 14px 28px;
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
  font-family: var(--font-cn);
  font-size: 15px;
  font-weight: 600;
  border-radius: 999px;
  box-shadow: 0 8px 28px rgba(5,150,105,0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

/* ============ ACCESSIBILITY: Focus visible ============ */
:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
  border-radius: 2px;
}
button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}

/* ============ LAZY IMAGE FADE-IN ============ */
.case-banner img[loading="lazy"],
.route-card-img img[loading="lazy"],
.news-img img[loading="lazy"],
.process-bg img[loading="lazy"],
.contact-bg img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}
.case-banner img[loading="lazy"].loaded,
.route-card-img img[loading="lazy"].loaded,
.news-img img[loading="lazy"].loaded,
.process-bg img[loading="lazy"].loaded,
.contact-bg img[loading="lazy"].loaded {
  opacity: 1;
}

/* ============ PREFERS REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============ PRINT STYLES ============ */
@media print {
  .nav,
  .hero-scroll,
  .back-to-top,
  .toast,
  .hero-glow,
  .hero-grid,
  .hero-stars,
  .cases-region-tabs,
  .process-arrow,
  .contact-form,
  .about-subnav {
    display: none !important;
  }
  .hero {
    min-height: auto;
    padding: 40px 0;
    background: none !important;
    color: #000;
  }
  .hero-title { color: #000; text-shadow: none; font-size: 28px; }
  .hero-title-line { opacity: 1; transform: none; animation: none; }
  .hero-sub { color: #333; }
  .hero-tabs { display: none; }
  .hero-actions { display: none; }
  .section-head { margin-bottom: 28px; }
  .section-title { font-size: 24px; color: #000; }
  .accent-text { background: none; color: var(--c-blue); -webkit-text-fill-color: var(--c-blue); }
  body { color: #000; background: #fff; font-size: 13px; }
  .container { max-width: 100%; padding: 0 20px; }
  .case-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .routes-showcase { grid-template-columns: repeat(2, 1fr); }
  .route-card { height: auto; }
  section { padding: 40px 0 !important; break-inside: avoid; }
  footer { padding: 24px 0; }
  .footer-bottom { color: #666; }
  .reveal { opacity: 1; transform: none; }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  .section-title { font-size: 36px; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--c-white);
    padding: 20px;
    border-bottom: 1px solid var(--c-line);
    box-shadow: var(--shadow-md);
    align-items: stretch;
  }
  .nav-links.open a { padding: 14px 20px; }
  .nav-toggle { display: flex; }

  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .themes-grid { grid-template-columns: repeat(3, 1fr); }
  .routes-showcase { grid-template-columns: repeat(3, 1fr); }
  .route-card { height: 320px; }
  .process-flow { grid-template-columns: repeat(2, 1fr); }
  .process-arrow { display: none; }
  .client-grid { grid-template-columns: repeat(3, 1fr); }
  .client-grid-univ { grid-template-columns: repeat(4, 1fr); }
  .about-subnav { padding: 6px 16px; gap: 0; }
  .about-subnav-link { padding: 8px 16px; font-size: 13px; }
  .about-stats { grid-template-columns: repeat(3, 1fr); }
  .about-stat:nth-child(3n)::after { display: none; }
  .about-features { grid-template-columns: repeat(3, 1fr); }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .news-card-feature { grid-column: span 2; grid-row: auto; }
  .news-card-feature .news-img { height: 220px; }
  .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .section-title { font-size: 28px; }
  .hero { padding: 130px 0 60px; min-height: auto; }
  .hero-title { font-size: 32px; }
  .hero-title-sub { font-size: 16px; }
  .hero-sub { font-size: 14px; margin-bottom: 24px; }
  .hero-tabs { gap: 8px; }
  .hero-tab { padding: 8px 14px; font-size: 12px; }
  .num-val { font-size: 36px; }
  .num-plus { font-size: 20px; }

  .case-grid { grid-template-columns: 1fr; }
  .themes-grid { grid-template-columns: 1fr 1fr; }
  .routes-showcase { grid-template-columns: 1fr; }
  .process-flow { grid-template-columns: 1fr; }
  .client-grid { grid-template-columns: repeat(2, 1fr); }
  .client-grid-univ { grid-template-columns: repeat(2, 1fr); }
  .about-subnav { flex-direction: column; gap: 4px; padding: 12px; border-radius: 18px; }
  .about-subnav-link { padding: 10px 24px; }
  .about-subnav-divider { display: none; }
  .about-stats { grid-template-columns: repeat(2, 1fr); padding: 32px 20px; }
  .about-stat::after { display: none !important; }
  .about-features { grid-template-columns: 1fr 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .news-card-feature { grid-column: span 1; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}