:root {
  --ink: #0a0c10;
  --ink-2: #0f1218;
  --panel: rgba(255, 255, 255, 0.04);
  --line: rgba(255, 255, 255, 0.09);
  --text: #eef1f5;
  --muted: #98a1ae;
  --brand: #12a594;
  --brand-2: #0e8c7e;
  --glow: rgba(18, 165, 148, 0.35);
  --radius: 18px;
  --max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font: 15px/1.7 "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ---------------- NAV ---------------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(10, 12, 16, 0.72);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, background .2s;
}
.nav.scrolled { border-bottom-color: var(--line); background: rgba(10, 12, 16, 0.9); }
.nav-inner {
  max-width: var(--max); margin: 0 auto; height: 66px; padding: 0 24px;
  display: flex; align-items: center; gap: 28px;
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 15px; }
.brand-logo {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(135deg, #16b3a0, #0b6b5f); color: #fff; font-weight: 700;
  box-shadow: 0 6px 20px rgba(18, 165, 148, 0.35);
}
.brand-text b { font-weight: 700; letter-spacing: .2px; }
.nav-links { display: flex; gap: 22px; flex: 1; font-size: 14px; color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.nav-cta { display: flex; gap: 10px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 38px; padding: 0 16px; border-radius: 10px;
  font-size: 14px; font-weight: 600; border: 1px solid transparent;
  transition: transform .15s, background .2s, border-color .2s, box-shadow .2s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, #16b3a0, #0b7b6d); color: #fff;
  box-shadow: 0 10px 24px rgba(18, 165, 148, 0.28);
}
.btn-primary:hover { box-shadow: 0 14px 30px rgba(18, 165, 148, 0.38); }
.btn-ghost { border-color: var(--line); color: var(--text); background: rgba(255,255,255,0.02); }
.btn-ghost:hover { border-color: rgba(255,255,255,0.22); background: rgba(255,255,255,0.05); }
.btn-lg { height: 46px; padding: 0 22px; font-size: 15px; border-radius: 12px; }

.nav-toggle { display: none; background: none; border: 0; color: var(--text); font-size: 20px; }

/* ---------------- HERO ---------------- */
.hero { position: relative; padding: 84px 24px 60px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: .55; }
.orb-1 { width: 620px; height: 620px; top: -220px; left: -120px; background: radial-gradient(circle, rgba(18,165,148,.55), transparent 70%); }
.orb-2 { width: 520px; height: 520px; top: 40px; right: -160px; background: radial-gradient(circle, rgba(56,120,255,.35), transparent 70%); }
.grid-lines {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 78%);
}
.hero-inner {
  position: relative; max-width: var(--max); margin: 0 auto;
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center;
}
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  height: 30px; padding: 0 12px; border-radius: 999px;
  border: 1px solid rgba(18,165,148,.35); background: rgba(18,165,148,.1);
  color: #6fe3d1; font-size: 12.5px; letter-spacing: .3px;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: #2ee6c9; box-shadow: 0 0 10px #2ee6c9; }
.hero h1 {
  margin: 20px 0 16px; font-size: clamp(34px, 5.2vw, 62px); line-height: 1.14;
  letter-spacing: -1px; font-weight: 800;
}
.grad {
  background: linear-gradient(100deg, #2ee6c9 10%, #58c8ff 55%, #9b8bff 95%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { color: var(--muted); font-size: 16px; max-width: 540px; }
.hero-actions { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }
.hero-meta { display: flex; gap: 18px; margin: 22px 0 0; padding: 0; list-style: none; color: #7d8794; font-size: 13px; }
.hero-meta li { position: relative; padding-left: 14px; }
.hero-meta li::before { content: ""; position: absolute; left: 0; top: 8px; width: 5px; height: 5px; border-radius: 50%; background: var(--brand); }

.hero-visual { position: relative; }
.shot-frame {
  position: relative; border-radius: 20px; overflow: hidden;
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 40px 90px rgba(0,0,0,.55), 0 0 0 1px rgba(18,165,148,.15) inset;
  transform: perspective(1400px) rotateY(-7deg) rotateX(3deg);
}
.shot-frame img { width: 100%; }
.shot-frame::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,12,16,0) 60%, rgba(10,12,16,.45));
}
.chip {
  position: absolute; padding: 7px 13px; border-radius: 999px; font-size: 12.5px;
  background: rgba(16, 20, 26, .82); border: 1px solid rgba(255,255,255,.14);
  backdrop-filter: blur(8px); color: #cfe6e1; box-shadow: 0 10px 24px rgba(0,0,0,.35);
  animation: float 6s ease-in-out infinite;
}
.chip-1 { top: 12%; left: -22px; }
.chip-2 { bottom: 26%; right: -18px; animation-delay: -2s; }
.chip-3 { bottom: 8%; left: 8%; animation-delay: -4s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

/* ---------------- STATS ---------------- */
.stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.015); }
.stats-inner {
  max-width: var(--max); margin: 0 auto; padding: 26px 24px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; text-align: center;
}
.stats b { display: block; font-size: 26px; font-weight: 800; color: #2ee6c9; }
.stats span { font-size: 13px; color: var(--muted); }

/* ---------------- SECTION ---------------- */
.section { max-width: var(--max); margin: 0 auto; padding: 92px 24px; }
.section-alt {
  max-width: none; background: rgba(255,255,255,.015);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.section-alt > * { max-width: var(--max); margin-left: auto; margin-right: auto; }
.section-head { max-width: 720px; margin-bottom: 44px; }
.eyebrow { font-size: 12px; letter-spacing: 2.4px; color: #2ee6c9; font-weight: 700; }
.section-head h2 { margin: 12px 0 12px; font-size: clamp(24px, 3.2vw, 38px); line-height: 1.28; letter-spacing: -.5px; }
.section-head p { color: var(--muted); margin: 0; }

/* ---------------- CARDS ---------------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card {
  padding: 24px; border-radius: var(--radius); border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.015));
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); border-color: rgba(18,165,148,.4); box-shadow: 0 20px 44px rgba(0,0,0,.35); }
.card-icon {
  width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
  background: rgba(18,165,148,.14); color: #2ee6c9; font-size: 17px; margin-bottom: 14px;
}
.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

/* ---------------- STEPS ---------------- */
.steps { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 0; }
.steps li {
  position: relative; padding: 26px 24px; border-radius: var(--radius);
  border: 1px solid var(--line); background: rgba(255,255,255,.03);
}
.step-no { font-size: 13px; font-weight: 700; color: #2ee6c9; letter-spacing: 1px; }
.steps h3 { margin: 10px 0 8px; font-size: 18px; }
.steps p { margin: 0; color: var(--muted); font-size: 14px; }

/* ---------------- GALLERY ---------------- */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.shot {
  margin: 0; border-radius: 16px; overflow: hidden; border: 1px solid var(--line);
  background: rgba(255,255,255,.03); transition: transform .2s, border-color .2s;
}
.shot:hover { transform: translateY(-3px); border-color: rgba(18,165,148,.4); }
.shot img { aspect-ratio: 3 / 2; object-fit: cover; object-position: top left; }
.shot figcaption { padding: 12px 14px; font-size: 12.5px; color: var(--muted); }
.shot figcaption b { color: var(--text); }

/* ---------------- PRICE ---------------- */
.price-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.price {
  position: relative; padding: 26px 22px; border-radius: var(--radius);
  border: 1px solid var(--line); background: rgba(255,255,255,.03); display: flex; flex-direction: column; gap: 10px;
}
.price.popular { border-color: rgba(18,165,148,.55); background: linear-gradient(180deg, rgba(18,165,148,.14), rgba(255,255,255,.02)); }
.tag {
  position: absolute; top: -11px; left: 22px; padding: 3px 10px; border-radius: 999px;
  background: #12a594; color: #fff; font-size: 11.5px; font-weight: 600;
}
.price h3 { margin: 0; font-size: 16px; }
.price-num { font-size: 32px; font-weight: 800; letter-spacing: -1px; }
.price-num span { font-size: 13px; font-weight: 500; color: var(--muted); margin-left: 4px; }
.price-desc { margin: 0; color: var(--muted); font-size: 13px; }
.price ul { list-style: none; margin: 6px 0 16px; padding: 0; display: flex; flex-direction: column; gap: 7px; font-size: 13px; color: #c2c9d3; }
.price li::before { content: "✓"; color: #2ee6c9; margin-right: 8px; }
.price .btn { margin-top: auto; width: 100%; }
.price-note { margin-top: 22px; color: var(--muted); font-size: 13px; }

/* ---------------- DOWNLOAD ---------------- */
.download-box {
  display: grid; grid-template-columns: 1.25fr .75fr; gap: 32px;
  padding: 40px; border-radius: 24px; border: 1px solid rgba(18,165,148,.28);
  background: radial-gradient(120% 140% at 0% 0%, rgba(18,165,148,.18), rgba(255,255,255,.02) 60%);
}
.download-copy h2 { margin: 12px 0 10px; font-size: clamp(24px, 3vw, 34px); }
.download-copy p { color: var(--muted); }
.req { list-style: none; padding: 0; margin: 18px 0 22px; display: flex; flex-direction: column; gap: 8px; font-size: 13.5px; color: #c2c9d3; }
.req b { display: inline-block; width: 52px; color: #7d8794; font-weight: 500; }
.download-side { border-left: 1px solid var(--line); padding-left: 28px; }
.download-side h3 { margin: 0 0 12px; font-size: 15px; }
.download-side ol { margin: 0; padding-left: 18px; color: var(--muted); font-size: 13.5px; display: flex; flex-direction: column; gap: 10px; }

/* ---------------- FAQ ---------------- */
.faq { display: flex; flex-direction: column; gap: 10px; max-width: 820px; }
.faq details {
  border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.03);
  padding: 16px 20px;
}
.faq summary { cursor: pointer; font-weight: 600; font-size: 15px; }
.faq p { margin: 10px 0 0; color: var(--muted); font-size: 14px; }

/* ---------------- FOOTER ---------------- */
.footer { border-top: 1px solid var(--line); background: #07090c; }
.footer-inner {
  max-width: var(--max); margin: 0 auto; padding: 34px 24px;
  display: grid; grid-template-columns: 1fr auto; gap: 18px; align-items: center;
}
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand b { font-size: 14px; }
.footer-brand p { margin: 2px 0 0; font-size: 12.5px; color: var(--muted); }
.footer-links { display: flex; gap: 18px; font-size: 13px; color: var(--muted); }
.footer-links a:hover { color: var(--text); }
.footer-copy { grid-column: 1 / -1; margin: 6px 0 0; font-size: 12px; color: #5f6875; }


/* ---------------- MARQUEE ---------------- */
.marquee {
  margin-top: 46px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  background: rgba(255,255,255,.015);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: flex; align-items: center; gap: 18px;
  padding: 14px 0; width: max-content;
  animation: scroll-x 38s linear infinite;
  font-size: 13.5px; color: #8f9aa8; letter-spacing: .3px;
}
.marquee-track i { color: #2ee6c9; font-style: normal; opacity: .6; }
@keyframes scroll-x { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------------- SCENES ---------------- */
.scenes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.scene {
  position: relative; padding: 24px 22px; border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.012));
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.scene:hover { transform: translateY(-3px); border-color: rgba(18,165,148,.45); box-shadow: 0 20px 44px rgba(0,0,0,.35); }
.scene-no { font-size: 12px; font-weight: 700; color: #2ee6c9; letter-spacing: 1.5px; }
.scene h3 { margin: 10px 0 8px; font-size: 17px; }
.scene p { margin: 0; color: var(--muted); font-size: 14px; }
.scene-note { margin: 22px 0 0; font-size: 12.5px; color: #6f7a88; line-height: 1.8; }
.scene-note b { color: #b9c2ce; }

/* ---------------- PILLARS ---------------- */
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.pillar {
  padding: 26px 22px; border-radius: var(--radius);
  border: 1px solid var(--line); background: rgba(255,255,255,.03);
}
.pillar-icon {
  width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(18,165,148,.14); color: #2ee6c9; font-size: 18px; margin-bottom: 14px;
}
.pillar h3 { margin: 0 0 8px; font-size: 16px; }
.pillar p { margin: 0; color: var(--muted); font-size: 13.5px; }
.real-note {
  margin-top: 22px; display: flex; gap: 14px; align-items: flex-start;
  padding: 18px 20px; border-radius: 14px;
  border: 1px dashed rgba(18,165,148,.35); background: rgba(18,165,148,.06);
}
.real-badge {
  flex: 0 0 auto; padding: 3px 10px; border-radius: 999px; font-size: 11.5px; font-weight: 600;
  background: rgba(18,165,148,.2); color: #6fe3d1;
}
.real-note p { margin: 0; font-size: 13.5px; color: #b9c2ce; line-height: 1.8; }

/* ---------------- ORIGINAL ---------------- */
.original-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.orig-card {
  padding: 24px; border-radius: var(--radius); border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(18,165,148,.08), rgba(255,255,255,.02) 60%);
}
.orig-card h3 { margin: 0 0 8px; font-size: 16.5px; }
.orig-card p { margin: 0; color: var(--muted); font-size: 14px; }
.quote-band {
  margin-top: 20px; padding: 22px 26px; border-left: 3px solid #12a594;
  background: rgba(255,255,255,.03); border-radius: 0 14px 14px 0;
}
.quote-band p { margin: 0; color: #c7ced8; font-size: 14.5px; line-height: 1.85; }

/* ---------------- RESPONSIVE ---------------- */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 34px; }
  .shot-frame { transform: none; }
  .chip { display: none; }
  .cards, .steps, .gallery, .scenes, .original-grid { grid-template-columns: 1fr 1fr; }
  .pillars { grid-template-columns: 1fr 1fr; }
  .price-grid { grid-template-columns: 1fr 1fr; }
  .download-box { grid-template-columns: 1fr; }
  .download-side { border-left: 0; border-top: 1px solid var(--line); padding: 22px 0 0; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-cta { margin-left: auto; }
  .nav.open .nav-links {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 66px; left: 0; right: 0; padding: 8px 24px 16px;
    background: rgba(10,12,16,.98); border-bottom: 1px solid var(--line);
  }
  .nav.open .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line); }
}
@media (max-width: 620px) {
  .cards, .steps, .gallery, .price-grid, .stats-inner, .scenes, .pillars, .original-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 56px; }
  .section { padding: 64px 20px; }
  .download-box { padding: 26px 20px; }
  .nav-cta .btn-ghost { display: none; }
}

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