/* WayHelmAI — Studio Editorial (light preview) */
:root {
  --bg: #F4F1EA;
  --bg-soft: #FAFAF7;
  --ink: #0B1F3A;
  --text: #0B1F3A;
  --muted: #5B6B7C;
  --card: #FFFFFF;
  --teal: #0E7490;
  --teal-deep: #155E75;
  --mint: #6EE7B7;
  --mint-wash: #ECFDF5;
  --peach: #FDBA74;
  --peach-wash: #FFF7ED;
  --amber: #D97706;
  --border: rgba(11, 31, 58, 0.1);
  --border-strong: rgba(14, 116, 144, 0.28);
  --shadow: 0 18px 40px rgba(11, 31, 58, 0.08);
  --shadow-soft: 0 8px 24px rgba(11, 31, 58, 0.06);
  --radius: 18px;
  --radius-sm: 12px;
  --font-display: "Plus Jakarta Sans", "Space Grotesk", "Noto Sans SC", system-ui, sans-serif;
  --font-body: "Inter", "Noto Sans SC", system-ui, sans-serif;
  --container: 1120px;
  --header-h: 74px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 220ms;
  --danger: #DC2626;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; filter: none !important; }
  .hero-orbs { display: none !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background:
    radial-gradient(900px 520px at 0% -5%, rgba(110, 231, 183, 0.22), transparent 50%),
    radial-gradient(700px 420px at 100% 5%, rgba(253, 186, 116, 0.2), transparent 48%),
    linear-gradient(180deg, var(--bg-soft), var(--bg) 35%, #F7F4EE 100%);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--teal); text-decoration: none; transition: color var(--dur) var(--ease); }
a:hover { color: var(--teal-deep); }
button, .btn, .nav-link, .lang-btn { cursor: pointer; }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.hidden { display: none !important; }
.honeypot { position: absolute; left: -9999px; height: 0; width: 0; opacity: 0; overflow: hidden; }

.skip-link {
  position: absolute; left: 1rem; top: -100px; z-index: 100;
  background: var(--ink); color: #fff; padding: 0.65rem 1rem; border-radius: 8px; font-weight: 700;
}
.skip-link:focus { top: 1rem; }

.container { width: min(100% - 2rem, var(--container)); margin-inline: auto; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(250, 250, 247, 0.82);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
  min-height: var(--header-h);
  display: flex; align-items: center; flex-wrap: nowrap; gap: 0.5rem;
}
.header-inner > a {
  min-width: 0; flex: 0 1 auto; display: inline-flex; align-items: center;
}
.site-logo-horizontal { height: 30px; width: auto; max-width: 100%; }
.site-nav { display: none; gap: 0.1rem; margin-left: auto; }
.nav-link {
  color: var(--muted); font-size: 0.9rem; font-weight: 550;
  padding: 0.55rem 0.7rem; border-radius: 999px; min-height: 44px;
  display: inline-flex; align-items: center; transition: color var(--dur), background var(--dur);
}
.nav-link:hover { color: var(--ink); background: rgba(14, 116, 144, 0.08); }
.header-actions {
  display: flex; align-items: center; flex-wrap: nowrap; gap: 0.35rem;
  margin-left: auto; flex: 0 0 auto;
}
.site-nav + .header-actions { margin-left: 0; }
a.btn.header-cta { display: none; }

.lang-switch {
  display: inline-flex; border: 1px solid var(--border); border-radius: 999px; padding: 2px; background: #fff;
}
.lang-btn {
  border: 0; background: transparent; color: var(--muted);
  font: 600 0.72rem/1 var(--font-body); padding: 0.35rem 0.5rem;
  border-radius: 999px; min-height: 34px; min-width: 36px;
}
.lang-btn.is-active { background: var(--ink); color: #fff; }

.nav-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 40px; min-width: 40px; padding: 0 0.7rem;
  border-radius: 12px; border: 1px solid var(--border);
  background: #fff; color: var(--ink); font-weight: 650; font-size: 0.85rem;
  white-space: nowrap;
}
.mobile-nav {
  display: none; gap: 0.25rem; padding: 0.5rem 1rem 1rem;
  border-top: 1px solid var(--border); background: rgba(250, 250, 247, 0.98);
}
.mobile-nav.is-open { display: grid; }
.mobile-nav[hidden] { display: none !important; }
.mobile-nav a {
  color: var(--ink); padding: 0.85rem 0.75rem; border-radius: 12px; min-height: 44px;
  display: flex; align-items: center;
}
.mobile-nav a:hover { background: var(--mint-wash); }

@media (max-width: 979.98px) {
  :root { --header-h: 64px; }
  .header-inner {
    padding-inline: max(1rem, env(safe-area-inset-left)) max(1rem, env(safe-area-inset-right));
    width: min(100%, var(--container));
  }
  .header-actions {
    flex: 1 1 auto;
    min-width: 0;
    justify-content: flex-start;
    gap: 0.5rem;
  }
  .nav-toggle {
    margin-left: auto; /* pin Menu to the trailing edge, away from lang switcher */
  }
}

@media (min-width: 980px) {
  .header-inner { gap: 1rem; }
  .site-logo-horizontal { height: 38px; }
  .site-nav { display: flex; }
  .nav-toggle, .mobile-nav { display: none !important; }
  .header-actions { margin-left: 0.75rem; gap: 0.5rem; }
  a.btn.header-cta { display: inline-flex; }
  .lang-btn {
    font-size: 0.8rem; padding: 0.45rem 0.7rem;
    min-height: 36px; min-width: 44px;
  }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem;
  min-height: 44px; padding: 0.7rem 1.2rem; border-radius: 999px;
  font: 650 0.95rem/1.1 var(--font-body); border: 1px solid transparent;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur), background var(--dur), border-color var(--dur), color var(--dur);
}
.btn:hover { transform: translateY(-1px); }
.btn-sm { min-height: 40px; padding: 0.45rem 0.95rem; font-size: 0.85rem; }
.btn-block { width: 100%; border-radius: 14px; }
.btn-primary {
  background: linear-gradient(135deg, var(--teal) 0%, #0F766E 100%);
  color: #fff; box-shadow: 0 10px 24px rgba(14, 116, 144, 0.25);
}
.btn-primary:hover { box-shadow: 0 14px 30px rgba(14, 116, 144, 0.32); color: #fff; }
.btn-secondary {
  background: #fff; color: var(--ink); border-color: var(--border); box-shadow: var(--shadow-soft);
}
.btn-secondary:hover { border-color: var(--border-strong); }
.icon-inline { width: 1.1rem; height: 1.1rem; flex: 0 0 auto; }

/* Type */
.eyebrow, .terminal-eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.78rem; font-weight: 750; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--teal); margin-bottom: 0.85rem;
}
.terminal-eyebrow::before {
  content: "";
  width: 1.5rem; height: 2px; background: linear-gradient(90deg, var(--peach), var(--teal));
  border-radius: 2px;
}
.section-title, .hero-title, .service-title, .step-title, .contact-title {
  font-family: var(--font-display); font-weight: 800; letter-spacing: -0.03em; line-height: 1.12;
}
.section-title { font-size: clamp(1.95rem, 3.6vw, 2.8rem); margin: 0 0 0.75rem; color: var(--ink); }
.section-lead, .hero-lead, .card-body, .service-body, .step-body { color: var(--muted); }
.section-head { max-width: 40rem; margin-bottom: 2.25rem; position: relative; }
.section-head::after {
  content: ""; display: block; width: 4.5rem; height: 3px; margin-top: 1.15rem;
  background: linear-gradient(90deg, var(--peach), var(--mint)); border-radius: 999px;
}
.section { padding: clamp(3.75rem, 7.5vw, 6rem) 0; }
.section-problems {
  background:
    linear-gradient(180deg, transparent, rgba(236, 253, 245, 0.65) 20%, rgba(236, 253, 245, 0.65) 80%, transparent);
}
.section-method {
  background:
    linear-gradient(180deg, transparent, rgba(255, 247, 237, 0.7) 18%, rgba(255, 247, 237, 0.7) 82%, transparent);
}

/* Hero */
.hero { position: relative; padding: clamp(2.75rem, 6vw, 4.75rem) 0 3.25rem; overflow: clip; }
.hero-orbs {
  position: absolute; inset: -8% -8% auto; height: 65%; pointer-events: none;
  background:
    radial-gradient(circle at 18% 45%, rgba(110, 231, 183, 0.35), transparent 36%),
    radial-gradient(circle at 82% 25%, rgba(253, 186, 116, 0.32), transparent 34%);
  filter: blur(4px);
  animation: orbFloat 14s ease-in-out infinite alternate;
}
@keyframes orbFloat {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(-2%, 2%, 0); }
}
.hero-grid { display: grid; gap: 2rem; align-items: start; }
@media (min-width: 980px) {
  .hero-grid { grid-template-columns: 1.05fr 0.95fr; gap: 2.75rem; align-items: center; }
}
.hero-title { font-size: clamp(2.2rem, 4.6vw, 3.5rem); margin: 0 0 1rem; }
.hero-title-accent {
  display: block; margin-top: 0.2rem; color: var(--teal);
}
.hero-lead { font-size: 1.08rem; margin: 0 0 1.25rem; max-width: 38rem; }
.trust-row { margin-bottom: 1.35rem; }
.trust-pill {
  display: inline-flex; padding: 0.45rem 0.9rem; border-radius: 999px;
  background: var(--peach-wash); border: 1px solid rgba(253, 186, 116, 0.55);
  color: #9A3412; font-size: 0.85rem; font-weight: 650;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.copy-hint { margin: 0.6rem 0 0; color: #047857; font-size: 0.9rem; font-weight: 650; }

.hero-visual { display: grid; gap: 1rem; }
.hero-figure {
  position: relative; border-radius: calc(var(--radius) + 6px); overflow: hidden;
  border: 1px solid var(--border); box-shadow: var(--shadow);
  aspect-ratio: 16 / 10; background: #fff;
  transform: rotate(-0.6deg);
}
.hero-img { width: 100%; height: 100%; object-fit: cover; }

.glass-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.principle-card {
  padding: 1.3rem 1.4rem;
  background:
    linear-gradient(180deg, #fff, #fff),
    linear-gradient(135deg, rgba(110, 231, 183, 0.25), rgba(253, 186, 116, 0.2));
  background-clip: padding-box, border-box;
  border: 1px solid transparent;
  box-shadow: var(--shadow);
}
.principle-quote { margin: 0 0 1rem; color: var(--ink); font-size: 1rem; }
.principle-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.9rem; }
.principle-list li { display: grid; grid-template-columns: auto 1fr; gap: 0.75rem; align-items: start; }
.principle-num {
  font-family: var(--font-display); font-weight: 800; color: var(--teal);
  font-size: 0.85rem; margin-top: 0.15rem;
}
.principle-detail { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.88rem; }

/* About asymmetric bento */
.about-grid {
  display: grid; gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 860px) {
  .about-grid { grid-template-columns: 1.25fr 0.85fr; align-items: stretch; }
  .about-panel:first-child { min-height: 100%; }
  .about-panel:last-child { margin-top: 1.5rem; }
}
.about-panel { padding: 1.45rem 1.5rem; }
.card-title { margin: 0 0 0.55rem; font-size: 1.2rem; font-family: var(--font-display); font-weight: 750; }
.card-body { margin: 0; font-size: 0.96rem; }
.stack-note, .audience-lead, .secondary-foot { margin-top: 0.85rem; }
.tag-row { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 1rem; }
.tag-chip {
  display: inline-flex; padding: 0.35rem 0.75rem; border-radius: 999px;
  background: rgba(14, 116, 144, 0.08); border: 1px solid rgba(14, 116, 144, 0.18);
  color: var(--teal-deep); font-size: 0.78rem; font-weight: 700;
}
.tag-mint { background: var(--mint-wash); border-color: rgba(16, 185, 129, 0.25); color: #047857; }
.tag-peach { background: var(--peach-wash); border-color: rgba(251, 146, 60, 0.35); color: #9A3412; }

.fit-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.7rem; }
.fit-list li { display: grid; grid-template-columns: 1.25rem 1fr; gap: 0.55rem; align-items: start; color: var(--ink); }
.fit-list svg { width: 1.15rem; height: 1.15rem; color: #059669; margin-top: 0.15rem; }

.bento-problems {
  display: grid; gap: 1rem; grid-template-columns: 1fr;
}
@media (min-width: 760px) {
  .bento-problems {
    grid-template-columns: 1.15fr 1fr 1fr;
    grid-template-areas:
      "a b c"
      "a d d";
  }
  .problem-span { grid-area: a; }
  .problem-card:nth-child(2) { grid-area: b; }
  .problem-card:nth-child(3) { grid-area: c; }
  .problem-wide { grid-area: d; }
}
.card { padding: 1.3rem 1.35rem; transition: transform var(--dur) var(--ease), box-shadow var(--dur), border-color var(--dur); }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--border-strong); }
.card-icon {
  width: 2.5rem; height: 2.5rem; border-radius: 14px;
  display: grid; place-items: center; margin-bottom: 0.9rem;
  background: var(--mint-wash); color: var(--teal); border: 1px solid rgba(14, 116, 144, 0.12);
}
.card-icon svg { width: 1.2rem; height: 1.2rem; }
.problem-span {
  background:
    linear-gradient(160deg, #fff 40%, rgba(236, 253, 245, 0.9));
}
.problem-wide {
  background:
    linear-gradient(160deg, #fff 35%, rgba(255, 247, 237, 0.95));
}

.service-primary {
  padding: 1.6rem 1.6rem 1.4rem; margin-bottom: 1rem; position: relative; overflow: hidden;
  background: linear-gradient(145deg, #fff 0%, #F0FDFA 100%);
}
.service-primary::after {
  content: ""; position: absolute; right: -40px; top: -40px; width: 160px; height: 160px;
  border-radius: 50%; background: radial-gradient(circle, rgba(253, 186, 116, 0.35), transparent 65%);
  pointer-events: none;
}
.service-badge {
  display: inline-flex; padding: 0.3rem 0.7rem; border-radius: 999px;
  background: var(--peach-wash); color: #9A3412; border: 1px solid rgba(253, 186, 116, 0.55);
  font-size: 0.75rem; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 0.75rem;
}
.service-title { font-size: 1.6rem; margin: 0 0 0.55rem; }
.service-points { display: grid; gap: 0.9rem; margin: 1.25rem 0; }
@media (min-width: 760px) { .service-points { grid-template-columns: repeat(3, 1fr); } }
.service-point-title { font-weight: 750; color: var(--ink); margin-bottom: 0.25rem; }
.service-point-body { margin: 0; color: var(--muted); font-size: 0.9rem; }
.service-meta {
  display: flex; flex-wrap: wrap; gap: 0.75rem 1.25rem; justify-content: space-between;
  padding-top: 1rem; border-top: 1px solid var(--border); color: var(--muted); font-size: 0.9rem;
}
.service-meta strong { color: var(--teal-deep); font-weight: 750; }
.service-secondary {
  padding: 1.3rem 1.4rem; margin-bottom: 1.6rem;
  background: #fff; border-style: dashed;
}
.service-secondary h3 { margin: 0.35rem 0 0.55rem; font-family: var(--font-display); font-size: 1.25rem; font-weight: 750; }
.service-secondary ul { margin: 0.75rem 0 0; padding-left: 1.1rem; color: var(--ink); }
.service-secondary li { margin: 0.3rem 0; }

.pillars { margin-top: 0.25rem; }
.card-grid-2 { display: grid; gap: 1rem; }
@media (min-width: 760px) { .card-grid-2 { grid-template-columns: 1fr 1fr; } }
.pillar-num {
  color: var(--teal); font-size: 0.8rem; margin-right: 0.4rem;
  font-family: var(--font-display); font-weight: 800;
}

.step-card { padding: 1.35rem 1.4rem; background: #fff; }
.step-num {
  font-family: var(--font-display); font-size: 2.1rem; font-weight: 800;
  color: var(--teal); line-height: 1; margin-bottom: 0.35rem;
}
.step-dur { margin: 0 0 0.55rem; color: #C2410C; font-size: 0.82rem; font-weight: 700; }
.step-list { margin: 0.75rem 0; padding-left: 1.1rem; color: var(--ink); }
.step-list li { margin: 0.25rem 0; }
.step-out { margin: 0.75rem 0 0; color: #047857; font-size: 0.88rem; font-weight: 700; }

.honesty {
  margin-top: 1.85rem; padding: 1.2rem 1.3rem; border-radius: var(--radius);
  border: 1px solid rgba(217, 119, 6, 0.28); background: #FFFBEB;
}
.honesty-badge {
  display: inline-flex; margin-bottom: 0.45rem; font-size: 0.75rem; font-weight: 800;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--amber);
}
.honesty p { margin: 0; color: var(--muted); }

/* Contact */
.section-contact {
  background:
    radial-gradient(700px 360px at 85% 10%, rgba(253, 186, 116, 0.28), transparent 55%),
    radial-gradient(600px 320px at 10% 80%, rgba(110, 231, 183, 0.25), transparent 50%),
    linear-gradient(180deg, #0B1F3A 0%, #12304F 100%);
  color: #E2E8F0;
  border-top: 0;
}
.section-contact .section-lead,
.section-contact .label,
.section-contact .form-note { color: #94A3B8; }
.section-contact .terminal-eyebrow { color: #67E8F9; }
.section-contact .terminal-eyebrow::before { background: linear-gradient(90deg, var(--peach), #67E8F9); }
.contact-title {
  font-size: clamp(2.35rem, 5.2vw, 3.4rem) !important;
  color: #fff !important;
}
.contact-grid { display: grid; gap: 1.5rem; }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1fr 1fr; align-items: start; gap: 2rem; } }
.contact-meta { display: grid; gap: 0.55rem; margin: 1.25rem 0; }
.contact-row {
  display: flex; gap: 0.75rem; align-items: baseline; flex-wrap: wrap;
  padding: 0.7rem 0.9rem; border-radius: 14px;
  background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.12);
  color: #F8FAFC;
}
.contact-row a { color: #67E8F9; }
.contact-row .label { min-width: 4rem; font-size: 0.85rem; }
.wechat-box {
  display: flex; flex-wrap: wrap; gap: 0.65rem; align-items: center;
  padding: 0.95rem 1.05rem; border-radius: var(--radius);
  border: 1px solid rgba(103, 232, 249, 0.35); background: rgba(14, 116, 144, 0.25);
  color: #E0F2FE;
}
.wechat-box strong { color: #67E8F9; font-size: 1.05rem; }
.section-contact .copy-hint { color: #6EE7B7; }

.form-card {
  padding: 1.3rem 1.35rem 1.45rem;
  background: #fff; color: var(--ink); box-shadow: 0 24px 50px rgba(0, 0, 0, 0.22);
}
.form-card-head {
  display: flex; justify-content: space-between; gap: 0.75rem; align-items: center;
  margin-bottom: 1rem; font-weight: 800; font-family: var(--font-display); color: var(--ink);
}
.form-open {
  font-size: 0.75rem; font-weight: 800; color: #047857;
  padding: 0.3rem 0.55rem; border-radius: 999px; background: var(--mint-wash);
  border: 1px solid rgba(16, 185, 129, 0.28); white-space: nowrap;
}
.form-field { margin-bottom: 0.85rem; }
.form-field label { display: block; margin-bottom: 0.35rem; font-size: 0.88rem; font-weight: 650; color: var(--ink); }
.form-field input, .form-field textarea {
  width: 100%; min-height: 44px; padding: 0.7rem 0.85rem; border-radius: 12px;
  border: 1px solid var(--border); background: #FAFAF7; color: var(--ink);
  font: 400 0.95rem/1.4 var(--font-body); transition: border-color var(--dur), box-shadow var(--dur);
}
.form-field textarea { min-height: 96px; resize: vertical; }
.form-field input:focus, .form-field textarea:focus {
  border-color: var(--teal); box-shadow: 0 0 0 3px rgba(14, 116, 144, 0.15); outline: none;
}
.form-note { margin: 0.75rem 0 0; font-size: 0.82rem; color: var(--muted) !important; }
.form-error { color: var(--danger); margin-top: 0.75rem; font-size: 0.9rem; }
.form-success {
  margin-top: 0.5rem; padding: 1rem; border-radius: 12px;
  background: var(--mint-wash); border: 1px solid rgba(16, 185, 129, 0.28); color: var(--ink);
}
.form-success h4 { margin: 0 0 0.35rem; color: #047857; }
.form-success p { margin: 0; color: var(--muted); }

/* Footer */
.site-footer {
  padding: 2.6rem 0 2rem; border-top: 1px solid var(--border);
  background: #FAFAF7; color: var(--muted);
}
.footer-grid { display: grid; gap: 1.5rem; }
@media (min-width: 800px) { .footer-grid { grid-template-columns: 1.4fr 1fr; } }
.footer-brand { display: flex; align-items: center; gap: 0.65rem; color: var(--ink); font-weight: 750; margin-bottom: 0.5rem; }
.footer-brand img { height: 28px; width: auto; }
.footer-tagline { margin: 0 0 0.85rem; }
.footer-lines { display: grid; gap: 0.35rem; margin-bottom: 0.85rem; }
.accent-strong { color: var(--teal); font-weight: 700; }
.origin-details { margin-top: 0.75rem; }
.origin-details summary { cursor: pointer; color: var(--ink); font-weight: 650; }
.origin-details p { margin: 0.5rem 0 0; max-width: 36rem; }
.footer-nav { display: grid; gap: 0.35rem; align-content: start; }
.footer-nav a { color: var(--muted); min-height: 40px; display: inline-flex; align-items: center; }
.footer-nav a:hover { color: var(--teal); }
.footer-copy { margin-top: 1.75rem; padding-top: 1rem; border-top: 1px solid var(--border); font-size: 0.85rem; }

/* Reveal */
.reveal {
  opacity: 1;
  transform: translateY(20px);
  transition: transform 450ms var(--ease);
  will-change: transform;
}
.reveal.is-in { transform: none; }