:root {
  --bg: #04070f;
  --bg-2: #060c18;
  --panel: #0a1222;
  --card: #0d1728;
  --card-2: #101c30;
  --primary-50: #e8f5ff;
  --primary-300: #6cc4f8;
  --primary-400: #35aef2;
  --primary-500: #1e97e0;
  --primary-600: #1579c4;
  --accent: #2ea7e8;
  --accent-2: #35c3ff;
  --c-cyan: #35c3ff;
  --c-orange: #f5a623;
  --c-pink: #e84d78;
  --text-primary: #eef4fc;
  --text-secondary: #a9bad2;
  --text-tertiary: #7285a3;
  --border-color: rgba(96, 150, 220, 0.16);
  --border-strong: rgba(96, 150, 220, 0.32);
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 34px rgba(46, 167, 232, 0.22);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --container: 1240px;
  --section-padding: 96px;
  --nav-h: 72px;
  --grad-text: linear-gradient(100deg, #7fd4ff 0%, #2ea7e8 55%, #1e6fff 100%);
  --grad-btn: linear-gradient(100deg, #35c3ff 0%, #1e8fe0 100%);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Segoe UI", -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  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; }
::selection { background: rgba(46, 167, 232, 0.4); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 860px; }
.center { text-align: center; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: 999px; border: 1px solid transparent;
  font-size: 15px; font-weight: 600; letter-spacing: 0.04em;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
  white-space: nowrap;
}
.btn-lg { padding: 15px 38px; font-size: 16px; }
.btn-primary {
  background: var(--grad-btn); color: #fff; box-shadow: 0 6px 24px rgba(30, 143, 224, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(30, 143, 224, 0.5); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.06); color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.28); backdrop-filter: blur(6px);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-2); transform: translateY(-2px); }
.section { padding: var(--section-padding) 0; position: relative; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 52px; }
.section-title {
  font-size: clamp(26px, 3.4vw, 40px); font-weight: 700; line-height: 1.3;
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-desc { margin-top: 14px; color: var(--text-secondary); font-size: 15px; }
.section-tag {
  display: inline-block; font-size: 13px; letter-spacing: 0.2em; color: var(--accent-2);
  border: 1px solid var(--border-strong); border-radius: 999px; padding: 5px 18px; margin-bottom: 16px;
}
.stat { text-align: center; padding: 14px 10px; border-radius: var(--radius-md); background: rgba(13, 23, 40, 0.85); border: 1px solid var(--border-color); }
.stat-num { font-size: clamp(24px, 2.6vw, 34px); font-weight: 700; color: var(--accent-2); font-variant-numeric: tabular-nums; }
.stat-num .unit { font-size: 0.55em; margin-left: 2px; color: var(--primary-300); }
.stat-label { margin-top: 4px; font-size: 13px; color: var(--text-tertiary); letter-spacing: 0.08em; }
.fade-in { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }
.navbar {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--nav-h);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.navbar.scrolled { background: rgba(4, 8, 16, 0.86); backdrop-filter: blur(14px); box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4); border-bottom: 1px solid rgba(96, 150, 220, 0.1); }
.nav-inner {
  max-width: 1400px; margin: 0 auto; height: 100%; padding: 0 28px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.nav-logo img { height: 40px; width: auto; }
.nav-links { display: flex; gap: 6px; }
.nav-links a {
  padding: 8px 16px; border-radius: 999px; font-size: 15px; color: var(--text-secondary);
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a.active { color: #fff; background: rgba(46, 167, 232, 0.18); border: 1px solid rgba(46, 167, 232, 0.35); }
.nav-right { display: flex; align-items: center; gap: 14px; }
.lang-switch {
  display: flex; align-items: center; background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18); border-radius: 999px; padding: 3px; gap: 2px;
}
.lang-switch a {
  padding: 4px 14px; border-radius: 999px; font-size: 13px; color: var(--text-secondary); transition: all 0.2s ease;
}
.lang-switch a.active { background: var(--grad-btn); color: #fff; }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 6px; }
.nav-hamburger span { width: 24px; height: 2px; background: #fff; transition: transform 0.3s ease, opacity 0.3s ease; }
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  position: fixed; inset: 0; z-index: 90; background: rgba(4, 8, 16, 0.97); backdrop-filter: blur(16px);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
}
.mobile-menu.open { opacity: 1; pointer-events: auto; }
.mobile-menu .m-link { font-size: 22px; padding: 12px 30px; color: var(--text-secondary); }
.mobile-menu .m-link.active { color: var(--accent-2); }
.mobile-menu-langs { margin-top: 22px; display: flex; gap: 26px; }
.mobile-menu-langs a { color: var(--text-tertiary); font-size: 15px; }
.mobile-menu-langs a.active { color: var(--accent-2); }
.hero { position: relative; height: 100vh; min-height: 640px; display: flex; align-items: center; overflow: hidden; }
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(4, 7, 15, 0.55) 0%, rgba(4, 7, 15, 0.25) 40%, rgba(4, 7, 15, 0.88) 100%);
}
.hero-content { position: relative; z-index: 2; text-align: center; width: 100%; }
.hero-title {
  font-size: clamp(38px, 6vw, 74px); font-weight: 800; letter-spacing: 0.08em; line-height: 1.2;
  text-shadow: 0 6px 40px rgba(0, 0, 0, 0.6);
}
.hero-subtitle {
  margin-top: 20px; font-size: clamp(14px, 1.8vw, 19px); color: var(--text-secondary); letter-spacing: 0.22em;
}
.hero-actions { margin-top: 44px; display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: 30px; right: 40px; z-index: 3;
  width: 26px; height: 44px; border: 2px solid rgba(255, 255, 255, 0.4); border-radius: 14px;
  display: flex; justify-content: center;
}
.hero-scroll span {
  width: 3px; height: 9px; border-radius: 3px; background: #fff; margin-top: 7px;
  animation: scroll-hint 1.8s ease-in-out infinite;
}
@keyframes scroll-hint { 0% { transform: translateY(0); opacity: 1; } 70% { transform: translateY(12px); opacity: 0; } 100% { opacity: 0; } }
.philosophy { text-align: center; background: radial-gradient(ellipse 60% 45% at 50% 0%, rgba(30, 111, 255, 0.12), transparent 70%); }
.values-grid { margin-top: 52px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.value-card {
  text-align: left; background: linear-gradient(165deg, var(--card-2), var(--card));
  border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 30px 26px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.value-card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow-glow); }
.value-card h3 { font-size: 21px; letter-spacing: 0.3em; margin-bottom: 14px; color: var(--accent-2); }
.value-card p { font-size: 13.5px; color: var(--text-secondary); line-height: 1.9; }
.product-feature { background: var(--bg-2); }
.prod-chips { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }
.chip-tab {
  padding: 9px 28px; border-radius: 999px; font-size: 14px; letter-spacing: 0.05em;
  border: 1px solid var(--border-strong); color: var(--text-secondary);
}
.chip-tab.active {
  background: var(--grad-btn); border-color: transparent; color: #fff;
  box-shadow: 0 5px 18px rgba(30, 143, 224, 0.35);
}
.product-feature-grid {
  display: grid; grid-template-columns: 1.08fr 1fr; gap: 48px; align-items: center;
}
.pfc-media img {
  width: 100%; aspect-ratio: 15 / 8; object-fit: cover;
  border-radius: var(--radius-md); border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}
.pfc-label {
  display: flex; align-items: center; gap: 8px; font-size: 13px; letter-spacing: 0.18em;
  color: var(--c-orange); margin-bottom: 10px;
}
.pfc-label i { width: 6px; height: 6px; border-radius: 50%; background: var(--c-orange); }
.pfc-titlerow { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.pfc-name { font-size: clamp(32px, 3.6vw, 46px); font-weight: 800; letter-spacing: 0.03em; color: var(--accent-2); }
.pfc-sub { font-size: 13px; color: var(--text-tertiary); letter-spacing: 0.1em; }
.pfc-intro { margin-top: 18px; color: var(--text-secondary); font-size: 14.5px; line-height: 1.95; }
.pfc-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; width: 100%; margin-top: 26px; }
.pfc-actions { margin-top: 48px; text-align: center; }
.phases { background: radial-gradient(ellipse 55% 40% at 50% 10%, rgba(46, 167, 232, 0.08), transparent 70%), var(--bg); }
.phases-timeline {
  position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
  margin-bottom: 54px; text-align: center;
}
.phases-timeline::before {
  content: ""; position: absolute; top: 30px; left: 16.66%; right: 16.66%; height: 1px;
  background: linear-gradient(90deg, rgba(53, 195, 255, 0.55), rgba(245, 166, 35, 0.55), rgba(232, 77, 120, 0.55));
}
.phase-col { position: relative; display: flex; flex-direction: column; align-items: center; }
.phase-circle {
  position: relative; z-index: 1; width: 60px; height: 60px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 700; background: var(--bg);
  border: 2px solid var(--c-cyan); color: var(--c-cyan);
}
.phase-2 .phase-circle { border-color: var(--c-orange); color: var(--c-orange); }
.phase-3 .phase-circle { border-color: var(--c-pink); color: var(--c-pink); }
.phase-col h3 { margin-top: 18px; font-size: 18px; line-height: 1.5; }
.phase-tag { margin-top: 6px; font-size: 13px; color: var(--text-tertiary); letter-spacing: 0.14em; line-height: 1.8; }
.phases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.phase-card {
  overflow: hidden; display: flex; flex-direction: column;
  background: linear-gradient(170deg, var(--card-2), var(--card));
  border: 1px solid var(--border-color); border-radius: var(--radius-md);
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.phase-card:hover { transform: translateY(-6px); border-color: var(--border-strong); }
.phase-media { position: relative; aspect-ratio: 3 / 2; overflow: hidden; }
.phase-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.phase-card:hover .phase-media img { transform: scale(1.05); }
.phase-en {
  position: absolute; left: 12px; top: 12px; font-size: 12px; font-weight: 700; letter-spacing: 0.08em;
  color: #04070f; background: var(--c-cyan); padding: 3px 12px; border-radius: 999px;
}
.phase-2 .phase-en { background: var(--c-orange); }
.phase-3 .phase-en { background: var(--c-pink); }
.phase-card-body { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.phase-status {
  display: flex; align-items: center; gap: 8px; font-size: 13px; letter-spacing: 0.08em;
  color: var(--c-cyan); margin-bottom: 12px;
}
.phase-status i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.phase-2 .phase-status { color: var(--c-orange); }
.phase-3 .phase-status { color: var(--c-pink); }
.phase-card h4 { font-size: 18px; margin-bottom: 12px; }
.phase-card > p, .phase-card-body > p { font-size: 13.5px; color: var(--text-secondary); line-height: 1.85; }
.phase-list { display: flex; flex-direction: column; gap: 9px; margin-top: auto; padding-top: 18px; }
.phase-list li { position: relative; padding-left: 20px; font-size: 13px; color: var(--text-tertiary); }
.phase-list li::before {
  content: ""; position: absolute; left: 2px; top: 7px;
  border-left: 6px solid var(--c-cyan); border-top: 4px solid transparent; border-bottom: 4px solid transparent;
}
.phase-2 .phase-list li::before { border-left-color: var(--c-orange); }
.phase-3 .phase-list li::before { border-left-color: var(--c-pink); }
.why { background: var(--bg-2); }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.why-card {
  position: relative; background: linear-gradient(165deg, var(--card-2), var(--card));
  border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 30px 28px;
  overflow: hidden; transition: transform 0.3s ease;
}
.why-card:hover { transform: translateY(-4px); }
.why-card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1.5px;
  background: linear-gradient(110deg, var(--c-orange) 0%, var(--c-pink) 45%, var(--accent) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
          mask-composite: exclude;
  opacity: 0; transition: opacity 0.35s ease; pointer-events: none;
}
.why-card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  box-shadow: 0 0 22px rgba(232, 77, 120, 0.28), 0 0 44px rgba(53, 175, 242, 0.22);
  opacity: 0; transition: opacity 0.35s ease;
}
.why-card:hover::before, .why-card:hover::after { opacity: 1; }
.why-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 50%; margin-bottom: 16px;
  border: 1.5px solid rgba(53, 175, 242, 0.55); color: var(--accent-2);
  font-size: 15px; font-weight: 600; letter-spacing: 0.04em;
}
.why-card h3 { font-size: 18px; margin-bottom: 12px; }
.why-card p { font-size: 13.5px; color: var(--text-secondary); line-height: 1.9; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news-card {
  display: flex; flex-direction: column; overflow: hidden;
  background: var(--card); border: 1px solid var(--border-color); border-radius: var(--radius-lg);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.news-card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: var(--shadow-md); }
.news-card-media { aspect-ratio: 16 / 9.6; overflow: hidden; }
.news-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-card:hover .news-card-media img { transform: scale(1.06); }
.news-card-body { padding: 20px 22px 24px; }
.news-card-body h3 {
  margin-top: 8px; font-size: 16.5px; line-height: 1.55; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-card-body p {
  margin-top: 10px; font-size: 13px; color: var(--text-tertiary); line-height: 1.8;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.news-meta { font-size: 12.5px; color: var(--accent-2); letter-spacing: 0.08em; }
.cta-section {
  background:
    radial-gradient(ellipse 50% 60% at 50% 110%, rgba(30, 111, 255, 0.16), transparent 70%),
    var(--bg-2);
}
.cta-form-wrap { max-width: 780px; margin: 0 auto; }
.contact-form { background: var(--card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 38px 40px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 20px; }
.form-field-full { grid-column: 1 / -1; }
.form-field label { display: block; font-size: 13.5px; color: var(--text-secondary); margin-bottom: 8px; }
.form-field .req { color: var(--c-orange); margin-left: 3px; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: 12px 15px; font-size: 14px; color: var(--text-primary);
  background: rgba(4, 8, 16, 0.6); border: 1px solid var(--border-color); border-radius: var(--radius-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease; font-family: inherit;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(46, 167, 232, 0.15);
}
.form-field textarea { resize: vertical; min-height: 120px; }
.select-wrap { position: relative; }
.select-wrap::after {
  content: ""; position: absolute; right: 16px; top: 50%; width: 8px; height: 8px;
  border-right: 2px solid var(--text-tertiary); border-bottom: 2px solid var(--text-tertiary);
  transform: translateY(-70%) rotate(45deg); pointer-events: none;
}
.form-field select { appearance: none; cursor: pointer; }
.form-field select option { background: var(--panel); color: var(--text-primary); }
.form-actions { margin-top: 26px; text-align: center; }
.hp-field { position: absolute !important; left: -9999px !important; height: 0; width: 0; opacity: 0; }
.form-toast {
  margin-bottom: 18px; padding: 13px 18px; border-radius: var(--radius-sm); font-size: 14px;
  background: rgba(46, 167, 232, 0.12); border: 1px solid rgba(46, 167, 232, 0.4); color: var(--accent-2);
  display: none;
}
.form-toast.show { display: block; }
.form-toast.is-error { background: rgba(229, 72, 77, 0.1); border-color: rgba(229, 72, 77, 0.45); color: #ff8a8d; }
.footer { border-top: 1px solid var(--border-color); background: #030509; padding: 64px 0 0; }
.footer-top { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 36px; padding-bottom: 48px; }
.footer-brand img { height: 44px; width: auto; margin-bottom: 18px; }
.footer-brand p { font-size: 13.5px; color: var(--text-tertiary); line-height: 1.9; max-width: 320px; }
.footer-col-title { font-size: 15px; font-weight: 600; color: var(--text-primary); margin-bottom: 16px; letter-spacing: 0.06em; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 13.5px; color: var(--text-tertiary); transition: color 0.2s ease; }
.footer-col a:hover { color: var(--accent-2); }
.footer-bottom {
  border-top: 1px solid rgba(96, 150, 220, 0.1); padding: 22px 0; text-align: center;
  font-size: 12.5px; color: var(--text-tertiary);
}
.page-hero { position: relative; height: 46vh; min-height: 380px; display: flex; align-items: flex-end; overflow: hidden; }
.page-hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 30%; }
.page-hero-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4, 7, 15, 0.42) 0%, rgba(4, 7, 15, 0.55) 55%, var(--bg) 100%); }
.page-hero .container { position: relative; z-index: 2; padding-bottom: 56px; }
.page-hero-title { font-size: clamp(34px, 4.6vw, 54px); font-weight: 800; letter-spacing: 0.1em; text-shadow: 0 4px 30px rgba(0, 0, 0, 0.6); }
.product-section { padding-top: 56px; }
.bleed { width: 100vw; margin-left: calc(50% - 50vw); }
.product-tabs {
  display: flex; gap: 16px; justify-content: flex-start; flex-wrap: wrap; margin-bottom: 44px;
}
.ptab {
  padding: 10px 34px; border-radius: 999px; font-size: 15px; letter-spacing: 0.05em;
  background: transparent; border: 1px solid var(--border-strong); color: var(--text-secondary);
  transition: all 0.25s ease;
}
.ptab:hover { border-color: var(--accent); color: var(--text-primary); }
.ptab.active { background: var(--grad-btn); border-color: transparent; color: #fff; box-shadow: 0 6px 22px rgba(30, 143, 224, 0.4); }
.pane { display: none; }
.pane.active { display: block; animation: pane-in 0.5s ease; }
@keyframes pane-in { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.product-titlebar {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 20px;
  padding-bottom: 18px; border-bottom: 1px solid var(--border-color); margin-bottom: 46px;
}
.pt-left { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.product-name { font-size: clamp(26px, 3vw, 36px); font-weight: 800; letter-spacing: 0.02em; color: var(--accent-2); }
.pt-sub { font-size: 13px; color: var(--text-tertiary); letter-spacing: 0.08em; }
.pt-side { font-size: 14px; color: var(--c-orange); letter-spacing: 0.08em; white-space: nowrap; }
.d1-overview { background: #0a101f; padding: 52px 0 64px; }
.d1-blueprint { max-width: 880px; margin: 0 auto; }
.d1-blueprint img { width: 100%; filter: invert(0.92) brightness(1.15); mix-blend-mode: screen; }
.data-label {
  display: flex; align-items: center; justify-content: center; gap: 14px;
  margin: 30px 0 26px; color: var(--text-tertiary); font-size: 14px; letter-spacing: 0.3em;
}
.data-label span::before, .data-label span::after { content: "——"; letter-spacing: -1px; opacity: 0.7; }
.d1-stats { display: grid; grid-template-columns: repeat(4, minmax(120px, 150px)); justify-content: center; gap: 14px; }
.d1-order { margin-top: 34px; text-align: center; }
.d1-block { padding-top: 96px; margin-bottom: 8px; }
.design-band { position: relative; background: #000; margin-top: 46px; overflow: hidden; }
.dd-streak {
  position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 100%; mix-blend-mode: screen; opacity: 0.95; pointer-events: none;
}
.design-band .container { position: relative; z-index: 1; }
.design-diagram { position: relative; aspect-ratio: 1240 / 620; }
.dd-plane {
  position: absolute; left: 32%; top: 15%; width: 66%;
  pointer-events: none;
}
.dd-line { position: absolute; background: var(--accent); opacity: 0.85; }
.dd-line-h { left: 36%; top: 29%; width: 12%; height: 1.5px; }
.dd-line-v1 { left: 57.8%; top: 47%; width: 1.5px; height: 26%; }
.dd-line-v2 { left: 63.9%; top: 30.5%; width: 1.5px; height: 42.5%; }
.dd-dot {
  position: absolute; width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-2); box-shadow: 0 0 10px rgba(53, 195, 255, 0.9);
}
.dd-dot-h { left: calc(48% - 4px); top: calc(29% - 4px); }
.dd-dot-v1 { left: calc(57.8% - 4px); top: calc(46% - 4px); }
.dd-dot-v2 { left: calc(63.9% - 4px); top: calc(29% - 4px); }
.dd-item { position: absolute; max-width: 320px; }
.dd-item h3 { font-size: 20px; color: var(--accent-2); letter-spacing: 0.04em; margin-bottom: 12px; }
.dd-item p { font-size: 13px; color: var(--text-secondary); line-height: 1.95; }
.dd-rotor { left: 11%; top: 21%; width: 24%; }
.dd-body { left: 38%; top: 74%; width: 24%; }
.dd-cabin { left: 66%; top: 74%; width: 27%; }
.photo-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.photo-card { margin: 0; }
.photo-card img {
  width: 100%; aspect-ratio: 16 / 10.5; object-fit: cover;
  border-radius: var(--radius-sm); border: 1px solid var(--border-color);
}
.photo-card figcaption { margin-top: 12px; text-align: center; font-size: 14px; color: var(--text-primary); letter-spacing: 0.06em; }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.safety-card {
  position: relative; display: flex; gap: 22px; align-items: flex-start; padding: 28px 26px;
  background: linear-gradient(160deg, #131c33, var(--card));
  border: 1px solid transparent; border-radius: var(--radius-md);
  transition: transform 0.3s ease;
}
.safety-card:hover { transform: translateY(-4px); }
.safety-card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1.5px;
  background: linear-gradient(110deg, var(--c-orange) 0%, var(--c-pink) 45%, var(--accent) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
          mask-composite: exclude;
  opacity: 0; transition: opacity 0.35s ease; pointer-events: none;
}
.safety-card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  box-shadow: 0 0 22px rgba(232, 77, 120, 0.26), 0 0 44px rgba(53, 175, 242, 0.2);
  opacity: 0; transition: opacity 0.35s ease;
}
.safety-card:hover::before, .safety-card:hover::after { opacity: 1; }
.safety-num {
  flex: 0 0 52px; height: 52px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1.5px solid rgba(53, 175, 242, 0.6); color: var(--accent-2);
  font-size: 17px; font-weight: 600;
}
.safety-body h3 { font-size: 16.5px; margin-bottom: 8px; color: var(--accent-2); }
.safety-body p { font-size: 13px; color: var(--text-tertiary); line-height: 1.85; }
.scene-accordion {
  display: flex; height: 430px; padding: 0 max(24px, calc((100vw - var(--container)) / 2 + 24px)) 8px;
}
.scene-panel {
  position: relative; flex: 1; overflow: hidden; cursor: pointer;
  background: #0b1322;
  clip-path: polygon(91px 0, 100% 0, calc(100% - 91px) 100%, 0 100%);  
  margin-left: -91px;
  transition: flex 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}
.scene-panel:first-child { margin-left: 0; }
.scene-panel.active { flex: 2.3; cursor: default; z-index: 1; }
.sp-media { position: absolute; inset: 0; transition: right 0.5s cubic-bezier(0.4, 0, 0.2, 1); }
.sp-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.sp-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(4, 8, 16, 0.1) 0%, rgba(4, 8, 16, 0) 45%, rgba(4, 8, 16, 0.8) 100%);
  transition: opacity 0.4s ease;
}
.scene-panel.active .sp-media {
  right: 50%;
  clip-path: polygon(0 0, 100% 0, calc(100% - 91px) 100%, 0 100%);
}
.scene-panel.active .sp-media::after {
  background: linear-gradient(90deg, rgba(11, 19, 34, 0) 62%, #0b1322 100%);
}
.scene-panel-body {
  position: absolute; z-index: 2; left: 0; right: 0; bottom: 20px;
  text-align: center; transition: all 0.5s ease;
}
.scene-panel-body h3 { font-size: 19px; color: var(--c-orange); letter-spacing: 0.12em; margin-bottom: 12px; white-space: nowrap; }
.scene-panel:not(.active) .scene-panel-body { right: 91px; }  
.scene-panel:not(.active) .scene-panel-body h3 { font-size: 16px; letter-spacing: 0.06em; }
.scene-panel-body p {
  font-size: 13.5px; color: var(--text-secondary); line-height: 2;
  max-height: 0; opacity: 0; overflow: hidden; transition: max-height 0.5s ease 0.12s, opacity 0.4s ease 0.12s;
}
.scene-panel.active .scene-panel-body {
  left: calc(50% - 91px); right: 40px; top: 12px; bottom: 12px;
  text-align: left;
}
.scene-panel.active .scene-panel-body::before {
  content: ""; float: left; width: 91px; height: 100%;
  shape-outside: polygon(0 0, 100% 0, 0 100%);
  shape-margin: 10px;
}
.scene-panel.active .scene-panel-body p { max-height: 320px; opacity: 1; overflow: visible; }  
.specs-block { padding-bottom: 96px; }
.specs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.specs-card {
  position: relative; background: linear-gradient(165deg, #121a30, var(--card));
  border: 1px solid transparent; border-radius: var(--radius-md); padding: 24px 26px 12px;
  transition: transform 0.3s ease;
}
.specs-card:hover { transform: translateY(-4px); }
.specs-card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1.5px;
  background: linear-gradient(110deg, var(--c-orange) 0%, var(--c-pink) 45%, var(--accent) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
          mask-composite: exclude;
  opacity: 0; transition: opacity 0.35s ease; pointer-events: none;
}
.specs-card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  box-shadow: 0 0 22px rgba(232, 77, 120, 0.24), 0 0 44px rgba(53, 175, 242, 0.18);
  opacity: 0; transition: opacity 0.35s ease;
}
.specs-card:hover::before, .specs-card:hover::after { opacity: 1; }
.specs-card h3 { font-size: 17px; color: var(--c-orange); letter-spacing: 0.06em; margin-bottom: 14px; }
.specs-card table { width: 100%; border-collapse: collapse; }
.specs-card th { font-size: 12.5px; color: var(--text-tertiary); font-weight: 400; padding: 8px 2px; text-align: left; border-bottom: 1px solid var(--border-color); }
.specs-card td { padding: 10px 2px; font-size: 13px; border-bottom: 1px solid rgba(96, 150, 220, 0.1); text-align: left; }
.specs-card tr:last-child td { border-bottom: none; }
.specs-card td:first-child { color: var(--text-tertiary); width: 44%; }
.specs-card td:last-child { color: var(--accent-2); }
.specs-note { margin-top: 26px; text-align: center; font-size: 13px; color: var(--text-tertiary); }
.research-block { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.research-title { font-size: clamp(24px, 2.6vw, 32px); color: var(--accent-2); letter-spacing: 0.04em; margin-bottom: 20px; }
.research-desc { font-size: 14.5px; color: var(--text-secondary); line-height: 2.05; }
.dot-list { margin: 24px 0 0; display: flex; flex-direction: column; gap: 13px; }
.dot-list li { position: relative; padding-left: 20px; font-size: 13.5px; color: var(--text-secondary); line-height: 1.85; }
.dot-list li::before { content: ""; position: absolute; left: 2px; top: 10px; width: 5px; height: 5px; border-radius: 50%; background: var(--text-secondary); }
.research-media img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover;
  border-radius: var(--radius-sm); border: 1px solid var(--border-color); box-shadow: var(--shadow-md);
}
.research-btn { margin-top: 56px; text-align: center; }
.space-stats {
  margin: 72px auto 0; display: grid; grid-template-columns: repeat(4, minmax(130px, 190px));
  justify-content: center; gap: 18px;
}
.about-intro { padding-top: 90px; }
.about-intro-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; align-items: center; }
.about-company { font-size: clamp(22px, 2.6vw, 30px); color: var(--accent-2); margin-bottom: 14px; }
.about-lead { font-size: 16px; color: var(--text-primary); line-height: 1.9; margin-bottom: 22px; font-weight: 500; }
.about-copy p { font-size: 14px; color: var(--text-secondary); line-height: 2.1; margin-bottom: 16px; text-align: justify; }
.about-media { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-color); box-shadow: var(--shadow-md); }
.direction { background: var(--bg-2); }
.direction-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 980px; margin: 0 auto; }
.direction-card {
  padding: 38px 36px; border-radius: var(--radius-lg); border: 1px solid var(--border-color);
  background: linear-gradient(165deg, var(--card-2), var(--card));
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.direction-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-glow); }
.direction-card.vision:hover { border-color: rgba(46, 167, 232, 0.5); }
.direction-card.mission:hover { border-color: rgba(245, 166, 35, 0.5); }
.direction-tag { font-size: 13px; letter-spacing: 0.18em; color: var(--accent-2); margin-bottom: 14px; }
.direction-card.mission .direction-tag { color: var(--c-orange); }
.direction-card h3 { font-size: 20px; margin-bottom: 16px; }
.direction-card p { font-size: 13.5px; color: var(--text-secondary); line-height: 2; margin-bottom: 10px; }
.slogan-section { position: relative; padding: 150px 0 170px; overflow: hidden; }
.slogan-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 68%; }
.slogan-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4, 7, 15, 0.5) 0%, rgba(4, 7, 15, 0.08) 45%, rgba(4, 7, 15, 0.15) 100%); }
.slogan-inner { position: relative; z-index: 2; text-align: center; }
.slogan-line { font-size: clamp(28px, 4.4vw, 52px); font-weight: 800; letter-spacing: 0.14em; line-height: 1.6; text-shadow: 0 4px 34px rgba(0, 0, 0, 0.7); }
.slogan-desc { margin-top: 26px; color: var(--text-secondary); font-size: 15px; }
.slogan-actions { margin-top: 36px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.news-section { padding-top: 64px; }
.news-filters { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 52px; }
.nfilter {
  padding: 9px 26px; border-radius: 999px; font-size: 14.5px; letter-spacing: 0.1em;
  border: 1px solid var(--border-color); color: var(--text-secondary); transition: all 0.25s ease;
}
.nfilter:hover { color: var(--text-primary); border-color: var(--border-strong); }
.nfilter.active { background: var(--grad-btn); border-color: transparent; color: #fff; box-shadow: 0 5px 18px rgba(30, 143, 224, 0.35); }
.news-top { display: grid; grid-template-columns: 1.5fr 1fr; gap: 22px; margin-bottom: 24px; }
.news-feature {
  display: flex; flex-direction: column; overflow: hidden;
  background: var(--card); border: 1px solid var(--border-color); border-radius: var(--radius-lg);
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.news-feature:hover { transform: translateY(-5px); border-color: var(--border-strong); }
.news-feature-media { aspect-ratio: 16 / 8.6; overflow: hidden; }
.news-feature-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-feature:hover .news-feature-media img { transform: scale(1.05); }
.news-feature-body { padding: 26px 30px 30px; }
.news-feature-body h2 { margin-top: 10px; font-size: clamp(19px, 2vw, 24px); line-height: 1.5; }
.news-feature-body p { margin-top: 12px; font-size: 13.5px; color: var(--text-tertiary); line-height: 1.9; }
.news-side { display: flex; flex-direction: column; gap: 18px; }
.news-side-item {
  flex: 1; display: flex; flex-direction: column; justify-content: center; padding: 20px 24px;
  background: var(--card); border: 1px solid var(--border-color); border-radius: var(--radius-md);
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.news-side-item:hover { border-color: var(--border-strong); transform: translateX(4px); }
.news-side-item h3 {
  margin-top: 6px; font-size: 15.5px; line-height: 1.55;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-side-item p {
  margin-top: 8px; font-size: 12.5px; color: var(--text-tertiary); line-height: 1.75;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-grid-lg { margin-top: 24px; }
.news-empty { text-align: center; color: var(--text-tertiary); padding: 40px 0; }
.pagination { margin-top: 52px; display: flex; gap: 10px; justify-content: center; align-items: center; }
.page-num, .page-btn {
  min-width: 40px; height: 40px; padding: 0 14px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: 10px; border: 1px solid var(--border-color); font-size: 14px; color: var(--text-secondary);
  transition: all 0.2s ease;
}
.page-num:hover, .page-btn:hover { border-color: var(--accent); color: var(--accent-2); }
.page-num.active { background: var(--grad-btn); border-color: transparent; color: #fff; }
.subscribe-box {
  margin-top: 84px; text-align: center; padding: 56px 32px;
  background:
    radial-gradient(ellipse 70% 90% at 50% 110%, rgba(30, 111, 255, 0.16), transparent 70%),
    var(--card);
  border: 1px solid var(--border-color); border-radius: var(--radius-lg);
}
.subscribe-box h2 { font-size: 24px; letter-spacing: 0.06em; }
.subscribe-box p { margin-top: 10px; color: var(--text-tertiary); font-size: 14px; }
.subscribe-form { margin: 28px auto 0; max-width: 480px; display: flex; gap: 12px; }
.subscribe-form input {
  flex: 1; padding: 12px 18px; font-size: 14px; color: var(--text-primary);
  background: rgba(4, 8, 16, 0.6); border: 1px solid var(--border-color); border-radius: 999px;
}
.subscribe-form input:focus { outline: none; border-color: var(--accent); }
.article-section { padding-top: calc(var(--nav-h) + 48px); }
.article-back { display: inline-block; margin-bottom: 26px; font-size: 14px; color: var(--text-tertiary); transition: color 0.2s ease; }
.article-back:hover { color: var(--accent-2); }
.article-meta { margin-bottom: 12px; }
.article-title { font-size: clamp(24px, 3.2vw, 36px); line-height: 1.45; margin-bottom: 30px; }
.article-media { border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border-color); margin-bottom: 34px; }
.article-content { font-size: 15.5px; color: var(--text-secondary); line-height: 2.15; }
.article-content p { margin-bottom: 18px; }
.article-related { margin-top: 70px; }
.article-related h2 { font-size: 20px; margin-bottom: 22px; color: var(--accent-2); letter-spacing: 0.06em; }
.contact-section { padding-top: 80px; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 26px; align-items: start; }
.contact-info {
  padding: 36px 34px; background: linear-gradient(165deg, var(--card-2), var(--card));
  border: 1px solid var(--border-color); border-radius: var(--radius-lg);
}
.contact-info h2 { font-size: 20px; line-height: 1.6; }
.contact-sub { margin-top: 8px; font-size: 13px; color: var(--text-tertiary); letter-spacing: 0.05em; line-height: 1.8; }
.contact-info ul { margin-top: 26px; display: flex; flex-direction: column; gap: 20px; }
.contact-info li { display: flex; flex-direction: column; gap: 4px; padding-bottom: 18px; border-bottom: 1px solid rgba(96, 150, 220, 0.1); }
.contact-info li:last-child { border-bottom: none; padding-bottom: 0; }
.ci-label { font-size: 12.5px; color: var(--accent-2); letter-spacing: 0.12em; }
.ci-value { font-size: 14.5px; color: var(--text-primary); line-height: 1.7; }
.ci-value a:hover { color: var(--accent-2); }
.faq-block { margin-top: 90px; }
.faq-head { margin-bottom: 34px; }
.faq-head h2 { font-size: clamp(22px, 2.8vw, 30px); background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; margin-top: 12px; }
.faq-list { display: flex; flex-direction: column; gap: 14px; max-width: 980px; margin: 0 auto; }
.faq-item {
  background: var(--card); border: 1px solid var(--border-color); border-radius: var(--radius-md);
  overflow: hidden; transition: border-color 0.3s ease;
}
.faq-item[open] { border-color: var(--border-strong); }
.faq-item summary {
  list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 20px 26px; cursor: pointer; font-size: 15.5px; font-weight: 500; color: var(--text-primary);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon { position: relative; flex: 0 0 22px; height: 22px; }
.faq-icon::before, .faq-icon::after {
  content: ""; position: absolute; inset: 0; margin: auto; background: var(--accent-2);
  transition: transform 0.3s ease;
}
.faq-icon::before { width: 14px; height: 2px; }
.faq-icon::after { width: 2px; height: 14px; }
.faq-item[open] .faq-icon::after { transform: rotate(90deg); }
.faq-answer { padding: 0 26px 22px; font-size: 14px; color: var(--text-secondary); line-height: 2; }
@media (max-width: 1100px) {
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .phases-grid, .why-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .design-diagram { aspect-ratio: auto; }
  .dd-streak, .dd-line, .dd-dot { display: none; }
  .dd-plane { position: static; width: 100%; mix-blend-mode: normal; }
  .dd-item { position: static; max-width: none; margin-top: 22px; width: auto; }
}
@media (max-width: 860px) {
  :root { --section-padding: 68px; --nav-h: 64px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-logo img { height: 34px; }
  .hero-actions .btn { width: min(320px, 78vw); }
  .product-feature-grid { grid-template-columns: 1fr; gap: 28px; }
  .pfc-stats { grid-template-columns: repeat(2, 1fr); }
  .phases-timeline { gap: 12px; }
  .phase-circle { width: 48px; height: 48px; font-size: 16px; }
  .phases-timeline::before { top: 24px; }
  .phase-col h3 { font-size: 15px; }
  .research-block, .about-intro-grid, .direction-grid, .contact-grid, .news-top,
  .safety-grid, .specs-grid { grid-template-columns: 1fr; }
  .d1-stats { grid-template-columns: repeat(2, 1fr); width: 100%; }
  .space-stats { grid-template-columns: repeat(2, 1fr); }
  .photo-cards { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 26px 22px; }
  .scene-accordion { display: block; height: auto; padding: 0 20px 8px; }
  .scene-panel { flex: none; clip-path: none; margin: 0 0 16px; border-radius: 12px; }
  .sp-media { position: static; height: 200px; }
  .sp-media::after { display: none; }
  .scene-panel-body { position: static; padding: 14px 16px 4px; text-align: left; }
  .scene-panel.active .scene-panel-body { position: static; transform: none; }
  .scene-panel.active .scene-panel-body::before { display: none; }
  .scene-panel:not(.active) .scene-panel-body { right: auto; }
  .scene-panel-body h3 { white-space: normal; margin-bottom: 8px; }
  .scene-panel:not(.active) .scene-panel-body h3 { font-size: 18px; letter-spacing: 0.1em; }
  .scene-panel-body p { max-height: none; opacity: 1; overflow: visible; }
}
@media (max-width: 560px) {
  .values-grid, .phases-grid, .why-grid, .news-grid { grid-template-columns: 1fr; }
  .phases-timeline { grid-template-columns: 1fr; gap: 26px; }
  .phases-timeline::before { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .page-hero { min-height: 300px; }
  .subscribe-form { flex-direction: column; }
  .hero-scroll { display: none; }
}