/* ============================================================
   TECHLY® — moban11  Full-Screen Minimal
   Extreme whitespace, huge type, yellow accent #FFD100
   ============================================================ */
:root {
  --bg: #ffffff;
  --bg-soft: #f7f7f5;
  --ink: #111111;
  --yellow: #ffd100;
  --muted: #6b6b6b;
  --line: #e6e6e2;
  --container: 1200px;
  --font: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; }

/* ---------- Minimal top bar ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 18px 0; }
.brand { font-weight: 900; font-size: 22px; letter-spacing: -0.5px; }
.brand small { display: block; font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: 0.4px; }

.site-nav { display: flex; gap: 26px; }
.site-nav a { font-size: 14px; font-weight: 600; color: #444; padding-bottom: 4px; border-bottom: 3px solid transparent; }
.site-nav a.active, .site-nav a:hover { color: var(--ink); border-bottom-color: var(--yellow); }

.nav-toggle { display: none; background: none; border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; font-size: 14px; font-weight: 700; cursor: pointer; }

/* ---------- Full-screen hero ---------- */
.screen { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; }
.hero-screen { position: relative; }
.hero-inner { text-align: center; padding: 80px 0; }
.hero-kicker { font-size: 13px; font-weight: 700; letter-spacing: 3px; color: var(--muted); text-transform: uppercase; margin-bottom: 26px; }
.hero-title {
  font-size: clamp(56px, 12vw, 150px);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -3px;
  margin-bottom: 30px;
}
.hero-title .yellow-mark { background: var(--yellow); padding: 0 0.08em; box-decoration-break: clone; }
.hero-sub { font-size: clamp(17px, 2.2vw, 24px); color: var(--muted); max-width: 760px; margin: 0 auto 42px; }
.scroll-hint { position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%); font-size: 12px; letter-spacing: 2px; color: var(--muted); }
.scroll-hint::after { content: ""; display: block; width: 1px; height: 46px; background: var(--ink); margin: 12px auto 0; animation: drop 1.8s infinite; }
@keyframes drop { 0% { transform: scaleY(0); transform-origin: top; } 60% { transform: scaleY(1); transform-origin: top; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- Numbered full screens ---------- */
.block { min-height: 100vh; padding: 90px 0; display: flex; flex-direction: column; justify-content: center; }
.block--soft { background: var(--bg-soft); }
.block-num { font-size: 14px; font-weight: 800; letter-spacing: 4px; color: var(--yellow); -webkit-text-stroke: 0; margin-bottom: 18px; }
.block-num b { font-size: 44px; font-weight: 900; color: transparent; -webkit-text-stroke: 2px var(--yellow); margin-right: 12px; }
.block-title { font-size: clamp(40px, 7vw, 92px); font-weight: 900; letter-spacing: -2px; line-height: 1.02; margin-bottom: 22px; }
.block-lead { max-width: 720px; color: var(--muted); font-size: 18px; }

/* huge service rows */
.svc-rows { margin-top: 52px; border-top: 1px solid var(--line); }
.svc-row {
  display: flex; align-items: center; justify-content: space-between; gap: 30px;
  padding: 30px 4px; border-bottom: 1px solid var(--line);
  font-size: clamp(24px, 4vw, 44px); font-weight: 800; letter-spacing: -1px;
  position: relative; overflow: hidden; cursor: default;
}
.svc-row span.idx { font-size: 13px; font-weight: 700; color: var(--muted); letter-spacing: 2px; }
.svc-row .svc-desc { font-size: 14px; font-weight: 500; color: var(--muted); max-width: 340px; text-align: right; }
.svc-row .arrow { font-size: 26px; color: var(--ink); opacity: 0; transform: translateX(-14px); transition: all .35s; }
.svc-row:hover { background: var(--yellow); color: var(--ink); }
.svc-row:hover .arrow { opacity: 1; transform: translateX(0); }
.svc-row:hover .svc-desc, .svc-row:hover span.idx { color: var(--ink); }

/* big stats */
.stats-big { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-top: 46px; }
.stat-big .num { font-size: clamp(64px, 10vw, 140px); font-weight: 900; letter-spacing: -4px; line-height: 1; }
.stat-big .num span { color: var(--yellow); }
.stat-big .lbl { margin-top: 14px; font-size: 15px; color: var(--muted); max-width: 260px; }

/* about split */
.about-split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 70px; align-items: center; margin-top: 44px; }
.about-split img { width: 100%; height: 100%; min-height: 420px; object-fit: cover; filter: grayscale(0.1); }
.about-split p { color: var(--muted); font-size: 17px; margin-bottom: 18px; }

/* quote screen */
.quote-screen { text-align: center; }
.quote-mark { font-size: 120px; line-height: 0.6; color: var(--yellow); font-weight: 900; }
.quote-text { font-size: clamp(28px, 5vw, 60px); font-weight: 800; letter-spacing: -1px; line-height: 1.25; max-width: 980px; margin: 30px auto 24px; }
.quote-by { color: var(--muted); font-size: 14px; letter-spacing: 2px; text-transform: uppercase; }

/* CTA screen */
.cta-screen { background: var(--yellow); }
.cta-inner { text-align: center; }
.cta-inner .big { font-size: clamp(44px, 8vw, 110px); font-weight: 900; letter-spacing: -3px; line-height: 1.02; }
.cta-inner .big a { text-decoration: underline; text-underline-offset: 8px; }
.cta-inner .hint { margin-top: 26px; font-size: 14px; letter-spacing: 2px; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 18px 34px; border-radius: 2px; font-weight: 800; font-size: 15px; letter-spacing: 0.5px; transition: all .25s; }
.btn--ink { background: var(--ink); color: #fff; }
.btn--ink:hover { background: #333; }
.btn--outline { border: 2px solid var(--ink); color: var(--ink); }
.btn--outline:hover { background: var(--ink); color: #fff; }
.btn--yellow { background: var(--yellow); color: var(--ink); }
.btn--yellow:hover { filter: brightness(1.05); }

/* ---------- Inner pages ---------- */
.page-hero { padding: 120px 0 40px; }
.page-hero h1 { font-size: clamp(44px, 8vw, 110px); font-weight: 900; letter-spacing: -3px; line-height: 1.02; margin-bottom: 20px; }
.page-hero p { color: var(--muted); font-size: 18px; max-width: 720px; }
.page-body { padding: 40px 0 110px; }

/* divider list (services) */
.divider-list { border-top: 1px solid var(--line); }
.divider-list li { display: grid; grid-template-columns: 70px 1fr 320px; gap: 30px; padding: 30px 4px; border-bottom: 1px solid var(--line); align-items: start; }
.divider-list .idx { font-weight: 900; font-size: 18px; color: var(--yellow); }
.divider-list h3 { font-size: 26px; font-weight: 800; margin-bottom: 8px; }
.divider-list p { color: var(--muted); font-size: 15px; }
.divider-list .tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.tag { padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; font-size: 12px; font-weight: 600; color: var(--muted); }

/* timeline (about) */
.timeline { margin-top: 60px; border-left: 2px solid var(--yellow); padding-left: 30px; display: grid; gap: 40px; }
.timeline li { position: relative; }
.timeline li::before { content: ""; position: absolute; left: -37px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--yellow); }
.timeline .year { font-weight: 900; font-size: 26px; letter-spacing: -1px; }
.timeline p { color: var(--muted); max-width: 640px; }

/* article list (insights) */
.article-list { border-top: 1px solid var(--line); }
.article-list li { display: grid; grid-template-columns: 180px 1fr; gap: 30px; padding: 34px 4px; border-bottom: 1px solid var(--line); }
.article-list .date { font-weight: 800; color: var(--muted); font-size: 14px; letter-spacing: 1px; }
.article-list h3 { font-size: 26px; font-weight: 800; margin-bottom: 8px; }
.article-list h3 a:hover { background: var(--yellow); }
.article-list p { color: var(--muted); max-width: 720px; }

/* FAQ */
.faq-list { max-width: 900px; }
.faq-item { border-top: 1px solid var(--line); padding: 26px 4px; }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item button { width: 100%; background: none; border: 0; font: inherit; text-align: left; font-size: 22px; font-weight: 800; display: flex; justify-content: space-between; gap: 20px; cursor: pointer; }
.faq-item button::after { content: "+"; font-size: 26px; color: var(--yellow); transition: transform .3s; }
.faq-item.open button::after { transform: rotate(45deg); }
.faq-answer { display: none; padding-top: 16px; color: var(--muted); max-width: 760px; }
.faq-item.open .faq-answer { display: block; }

/* contact */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 70px; }
.contact-info h3 { font-size: 26px; font-weight: 800; margin-bottom: 12px; }
.contact-info p { color: var(--muted); margin-bottom: 26px; }
.contact-info .row { display: grid; gap: 6px; margin-bottom: 26px; }
.contact-info .row b { font-size: 14px; letter-spacing: 1px; }
.contact-form { display: grid; gap: 18px; }
.contact-form label { display: grid; gap: 8px; font-size: 13px; font-weight: 700; letter-spacing: 1px; }
.contact-form input, .contact-form textarea, .contact-form select {
  width: 100%; padding: 16px 18px; border: 1px solid var(--line); border-radius: 2px;
  font: inherit; background: var(--bg-soft); color: var(--ink);
}
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--yellow); background: #fff; }
.contact-form textarea { min-height: 150px; }
.status-text { min-height: 24px; font-weight: 700; color: var(--ink); }
.status-text::before { content: "> "; color: var(--yellow); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 56px 0 40px; background: var(--bg); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr; gap: 40px; }
.footer-title { font-size: 13px; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 16px; }
.footer-links { display: grid; gap: 10px; color: var(--muted); font-size: 14px; }
.footer-links a:hover { color: var(--ink); }
.footer-note { margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .site-nav {
    display: none; position: absolute; right: 24px; top: 66px;
    width: min(320px, calc(100% - 48px)); padding: 20px;
    background: #fff; border: 1px solid var(--line); flex-direction: column; gap: 16px;
  }
  .site-nav.open { display: flex; }
  .nav-toggle { display: inline-flex; }
  .stats-big { grid-template-columns: 1fr; gap: 34px; }
  .about-split, .contact-grid, .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .divider-list li, .article-list li { grid-template-columns: 1fr; gap: 10px; }
  .divider-list .tags { justify-content: flex-start; }
  .svc-row { flex-wrap: wrap; }
  .svc-row .svc-desc { text-align: left; }
}