/* ============================================================
   飞人标牌 FLYING MAN PANEL WORKS — fr2009.com
   Design system: warm paper canvas / ink / signal red accent
   ============================================================ */
:root {
  --paper: #f3f0ea;
  --paper-2: #ebe7de;
  --ground: #e3ddd1;
  --ink: #16140f;
  --ink-70: #4b4940;
  --ink-45: #8d887a;
  --red: #b3202a;
  --red-deep: #8e1620;
  --dark: #16140f;
  --dark-2: #211e17;
  --cream: #efe9dc;
  --line: rgba(22, 20, 15, 0.16);
  --line-dark: rgba(239, 233, 220, 0.16);
  --font-d: "Archivo", "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-m: "Space Mono", "IBM Plex Mono", Consolas, "PingFang SC", "Microsoft YaHei", monospace;
  --pad: clamp(20px, 4.5vw, 72px);
  --sec: clamp(88px, 12vw, 168px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-d);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--red); color: var(--cream); }

/* ---------- header ---------- */
.hd {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; justify-content: space-between; align-items: center;
  padding: 15px var(--pad);
  background: var(--ink);
  color: var(--cream);
  box-shadow: 0 2px 0 var(--red);
  transition: background .45s ease, box-shadow .45s ease, padding .45s ease;
}
.hd.scrolled {
  background: rgba(22, 20, 15, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 0 var(--red), 0 10px 28px rgba(0, 0, 0, 0.22);
  padding-top: 10px; padding-bottom: 10px;
}
.hd.on-dark:not(.scrolled) { color: var(--cream); }
[id] { scroll-margin-top: 90px; }
.hd-brand { display: flex; align-items: center; gap: 12px; }
.hd-brand img { width: auto; height: 42px; border-radius: 6px; display: block; }
.hd-brand .cn { font-weight: 800; font-size: 19px; letter-spacing: 0.12em; }
.hd-brand .en { font-family: var(--font-m); font-size: 10px; letter-spacing: 0.22em; opacity: 0.6; display: block; margin-top: 1px; }
.hd-nav { display: flex; gap: clamp(18px, 3vw, 44px); }
.hd-nav a {
  font-family: var(--font-m); font-size: 11px; letter-spacing: 0.14em;
  display: flex; flex-direction: column; align-items: flex-end; line-height: 1.5;
  position: relative; padding-bottom: 2px;
}
.hd-nav a .no { color: var(--red); margin-right: 6px; }
.hd-nav a .cn2 { font-family: var(--font-d); font-size: 12px; letter-spacing: 0.3em; opacity: 0.65; }
.hd-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--red); transition: width .35s cubic-bezier(0.22, 1, 0.36, 1);
}
.hd-nav a:hover::after, .hd-nav a.on::after { width: 100%; }

/* ---------- hero ---------- */
.hero {
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center;
  gap: clamp(24px, 4vw, 64px);
  padding: calc(70px + 4vw) var(--pad) 48px;
  position: relative;
}
.hero-kicker {
  font-family: var(--font-m); font-size: 12px; letter-spacing: 0.3em;
  color: var(--red); margin-bottom: clamp(20px, 3vh, 36px);
  display: flex; align-items: center; gap: 14px;
}
.hero-kicker::before { content: ""; width: 42px; height: 1px; background: var(--red); }
.hero-title-cn {
  font-size: clamp(44px, 6.2vw, 96px);
  font-weight: 900; line-height: 1.06; letter-spacing: 0.02em;
}
.hero-title-cn em { font-style: normal; color: var(--red); }
.hero-title-en {
  font-family: var(--font-m);
  font-size: clamp(13px, 1.35vw, 19px);
  letter-spacing: 0.42em;
  margin-top: 18px; color: var(--ink-70);
}
.hero-desc { max-width: 46ch; margin-top: clamp(22px, 3.4vh, 40px); color: var(--ink-70); font-size: clamp(15px, 1.15vw, 17.5px); }
.hero-cta { display: flex; gap: 18px; margin-top: clamp(26px, 4vh, 48px); flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-m); font-size: 12.5px; letter-spacing: 0.18em;
  padding: 15px 28px; border: 1px solid var(--ink);
  transition: all .35s cubic-bezier(0.22, 1, 0.36, 1);
}
.btn svg { transition: transform .35s cubic-bezier(0.22, 1, 0.36, 1); }
.btn:hover { background: var(--ink); color: var(--paper); }
.btn:hover svg { transform: translateX(5px); }
.btn.red { background: var(--red); border-color: var(--red); color: #fff; }
.btn.red:hover { background: var(--red-deep); border-color: var(--red-deep); }
.hero-art { position: relative; }
.hero-art svg { width: 100%; height: auto; display: block; }
.hero-art .tag {
  position: absolute; font-family: var(--font-m); font-size: 10.5px; letter-spacing: 0.16em;
  color: var(--ink-45); border-left: 1px solid var(--line); padding-left: 10px; line-height: 1.6;
}
.hero-stats {
  grid-column: 1 / -1;
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  margin-top: clamp(30px, 5vh, 64px);
}
.stat { padding: 22px 18px 6px 0; }
.stat + .stat { border-left: 1px solid var(--line); padding-left: 26px; }
.stat .n { font-size: clamp(30px, 3.4vw, 52px); font-weight: 850; letter-spacing: -0.01em; line-height: 1.1; }
.stat .n i { font-style: normal; color: var(--red); }
.stat .l { font-family: var(--font-m); font-size: 11px; letter-spacing: 0.2em; color: var(--ink-45); margin-top: 8px; }

/* ---------- section scaffolding ---------- */
.sec { padding: var(--sec) var(--pad); position: relative; }
.sec-head { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; margin-bottom: clamp(40px, 6vw, 80px); flex-wrap: wrap; }
.sec-no { font-family: var(--font-m); color: var(--red); font-size: 13px; letter-spacing: 0.3em; }
.sec-title { font-size: clamp(32px, 4.6vw, 64px); font-weight: 880; line-height: 1.12; letter-spacing: 0.01em; }
.sec-title .en { display: block; font-family: var(--font-m); font-weight: 400; font-size: clamp(12px, 1.2vw, 16px); letter-spacing: 0.4em; color: var(--ink-45); margin-top: 14px; }
.sec-note { max-width: 34ch; color: var(--ink-70); font-size: 15px; }
.dark { background: var(--dark); color: var(--cream); }
.dark .sec-title .en { color: rgba(239, 233, 220, 0.45); }
.dark .sec-note { color: rgba(239, 233, 220, 0.68); }

/* reveal */
.rv { opacity: 0; transform: translateY(34px); transition: opacity .9s cubic-bezier(0.22, 1, 0.36, 1), transform .9s cubic-bezier(0.22, 1, 0.36, 1); }
.rv.in { opacity: 1; transform: none; }
.rv.d1 { transition-delay: .08s; } .rv.d2 { transition-delay: .16s; } .rv.d3 { transition-delay: .24s; }

/* ---------- category index (home) ---------- */
.cats { border-top: 1px solid var(--line); }
.cat-row {
  display: grid; grid-template-columns: 90px 1fr auto; align-items: center; gap: 22px;
  padding: clamp(20px, 3vw, 34px) 6px;
  border-bottom: 1px solid var(--line);
  transition: background .35s ease, padding-left .35s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
}
.cat-row:hover { background: var(--paper-2); padding-left: 22px; }
.cat-row .idx { font-family: var(--font-m); font-size: 13px; color: var(--ink-45); letter-spacing: 0.2em; }
.cat-row .name { font-size: clamp(20px, 2.6vw, 34px); font-weight: 800; letter-spacing: 0.03em; display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.cat-row .name .en { font-family: var(--font-m); font-weight: 400; font-size: 11.5px; letter-spacing: 0.26em; color: var(--ink-45); }
.cat-row .cnt { font-family: var(--font-m); font-size: 12px; color: var(--ink-45); letter-spacing: 0.14em; }
.cat-row .arrow { color: var(--red); transition: transform .35s cubic-bezier(0.22, 1, 0.36, 1); }
.cat-row:hover .arrow { transform: translateX(8px); }

/* ---------- story ---------- */
.eras { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(24px, 3.4vw, 56px); }
.era { border-top: 1px solid var(--line-dark); padding-top: 26px; }
.era .no { font-family: var(--font-m); font-size: 12px; color: var(--red); letter-spacing: 0.3em; }
.era h3 { font-size: clamp(22px, 2.2vw, 30px); font-weight: 820; margin: 16px 0 14px; letter-spacing: 0.02em; }
.era p { color: rgba(239, 233, 220, 0.72); font-size: 15px; }
.era .y { font-family: var(--font-m); font-size: 11px; color: rgba(239, 233, 220, 0.45); letter-spacing: 0.22em; margin-top: 18px; display: block; }
.story-foot { margin-top: clamp(48px, 7vw, 96px); border-top: 1px solid var(--line-dark); padding-top: 26px; display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.story-foot .hl { font-family: var(--font-m); font-size: 12px; letter-spacing: 0.2em; color: rgba(239,233,220,.55); }
.auto-band {
  margin-top: clamp(56px, 8vw, 110px);
  border: 1px solid var(--line-dark);
  padding: clamp(26px, 3.6vw, 48px);
  display: grid; grid-template-columns: auto 1fr; gap: clamp(22px, 3.4vw, 52px); align-items: center;
}
.auto-band .no { font-family: var(--font-m); font-size: clamp(13px, 1.4vw, 17px); letter-spacing: 0.28em; color: var(--red); line-height: 1.7; border-right: 1px solid var(--line-dark); padding-right: clamp(22px, 3vw, 48px); }
.auto-band h3 { font-size: clamp(22px, 2.8vw, 38px); font-weight: 860; letter-spacing: 0.02em; margin-bottom: 12px; }
.auto-band p { color: rgba(239, 233, 220, 0.72); font-size: 15.5px; max-width: 68ch; }
@media (max-width: 700px) { .auto-band { grid-template-columns: 1fr; } .auto-band .no { border-right: none; border-bottom: 1px solid var(--line-dark); padding: 0 0 14px; } }

/* ---------- news ---------- */
.news-card {
  display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(24px, 4vw, 64px);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: clamp(28px, 4vw, 52px) 0; align-items: center;
}
.news-card .date { font-family: var(--font-m); font-size: 12px; color: var(--red); letter-spacing: 0.24em; }
.news-card h3 { font-size: clamp(24px, 3vw, 40px); font-weight: 840; line-height: 1.25; margin: 14px 0 16px; }
.news-card p { color: var(--ink-70); font-size: 15.5px; max-width: 52ch; }
.news-card .more { margin-top: 24px; display: inline-flex; gap: 10px; font-family: var(--font-m); font-size: 12px; letter-spacing: 0.2em; border-bottom: 1px solid var(--red); padding-bottom: 4px; color: var(--red); }

/* ---------- contact ---------- */
.cta { background: var(--red); color: #fff; }
.cta .sec-no { color: rgba(255,255,255,0.75); }
.cta-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: clamp(30px, 5vw, 90px); align-items: end; }
.cta h2 { font-size: clamp(36px, 5.6vw, 84px); font-weight: 900; line-height: 1.08; letter-spacing: 0.01em; }
.cta .tel { font-family: var(--font-m); font-size: clamp(24px, 3.4vw, 48px); letter-spacing: 0.06em; margin-top: 26px; display: inline-flex; align-items: center; gap: 14px; border-bottom: 2px solid rgba(255,255,255,0.55); padding-bottom: 6px; }
.cta .tel:hover { border-color: #fff; }
.cta .tel svg { flex: none; }
.cta .tel2 { display: flex; align-items: center; gap: 12px; font-family: var(--font-m); font-size: clamp(16px, 1.9vw, 26px); letter-spacing: 0.06em; margin-top: 14px; opacity: 0.92; }
.cta-side { font-size: 15px; color: rgba(255,255,255,0.85); }
.cta-side .row { border-top: 1px solid rgba(255,255,255,0.28); padding: 14px 0; }
.cta-side .k { font-family: var(--font-m); font-size: 11px; letter-spacing: 0.26em; color: rgba(255,255,255,0.6); display: block; margin-bottom: 4px; }

/* ---------- footer ---------- */
.ft { background: var(--dark); color: rgba(239,233,220,0.72); padding: clamp(40px, 6vw, 80px) var(--pad) 30px; font-size: 13.5px; }
.ft-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: clamp(26px, 4vw, 72px); padding-bottom: 40px; border-bottom: 1px solid var(--line-dark); }
.ft h4 { font-family: var(--font-m); font-size: 11px; letter-spacing: 0.3em; color: rgba(239,233,220,0.45); margin-bottom: 16px; font-weight: 400; }
.ft .brand-line { font-size: 19px; font-weight: 800; color: var(--cream); letter-spacing: 0.08em; margin-bottom: 10px; }
.ft a:hover { color: #fff; }
.ft li { list-style: none; margin-bottom: 8px; }
.ft-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 22px; font-family: var(--font-m); font-size: 11px; letter-spacing: 0.14em; color: rgba(239,233,220,0.4); }

/* ---------- products page ---------- */
.pg-hero { padding: calc(90px + 6vw) var(--pad) clamp(40px, 6vw, 80px); }
.pg-hero h1 { font-size: clamp(40px, 6vw, 88px); font-weight: 900; line-height: 1.08; }
.pg-hero .en { font-family: var(--font-m); letter-spacing: 0.4em; color: var(--ink-45); font-size: clamp(12px, 1.2vw, 15px); margin-top: 16px; }
.pcat { padding: clamp(56px, 8vw, 110px) var(--pad); border-top: 1px solid var(--line); scroll-margin-top: 70px; }
.pcat.alt { background: var(--paper-2); }
.pcat-head { display: grid; grid-template-columns: auto 1fr auto; align-items: end; gap: 26px; margin-bottom: clamp(30px, 4.5vw, 60px); }
.pcat-head .no { font-family: var(--font-m); font-size: 13px; color: var(--red); letter-spacing: 0.26em; }
.pcat-head h2 { font-size: clamp(28px, 3.8vw, 52px); font-weight: 880; letter-spacing: 0.02em; }
.pcat-head h2 .en { display: block; font-family: var(--font-m); font-weight: 400; font-size: 12px; letter-spacing: 0.34em; color: var(--ink-45); margin-top: 10px; }
.pcat-head .cnt { font-family: var(--font-m); font-size: 11.5px; color: var(--ink-45); letter-spacing: 0.16em; white-space: nowrap; }
.pgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(258px, 1fr)); gap: clamp(18px, 2.6vw, 34px); }
.pcell { display: flex; flex-direction: column; }
.pcell .art {
  background: var(--ground); border-radius: 4px; overflow: hidden; position: relative;
  aspect-ratio: 4 / 3.1;
}
.pcell .art svg, .pcell .art img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s cubic-bezier(0.22, 1, 0.36, 1); }
.pcell:hover .art svg, .pcell:hover .art img { transform: scale(1.045); }
.pcell .idx { font-family: var(--font-m); font-size: 10.5px; color: var(--ink-45); letter-spacing: 0.2em; margin-top: 16px; }
.pcell h3 { font-size: 19px; font-weight: 800; letter-spacing: 0.03em; margin-top: 6px; display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.pcell h3 .en { font-family: var(--font-m); font-weight: 400; font-size: 10.5px; letter-spacing: 0.22em; color: var(--ink-45); }
.pcell p { font-size: 13.5px; color: var(--ink-70); margin-top: 8px; line-height: 1.7; }
.pcell.empty .art { display: flex; align-items: center; justify-content: center; }
.pcell.empty .art span { font-family: var(--font-m); font-size: 11px; letter-spacing: 0.34em; color: var(--ink-45); border: 1px dashed rgba(22,20,15,0.3); padding: 10px 18px; border-radius: 999px; }
.dia { grid-column: 1 / -1; background: #fff; border: 1px solid var(--line); border-radius: 4px; padding: clamp(18px, 3vw, 40px); }
.dia img { width: 100%; height: auto; }
.dia .cap { font-family: var(--font-m); font-size: 11px; color: var(--ink-45); letter-spacing: 0.14em; margin-top: 14px; }

.proc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(18px, 2.6vw, 34px); }
.proc { border-top: 2px solid var(--ink); padding-top: 18px; }
.proc .no { font-family: var(--font-m); font-size: 11.5px; color: var(--red); letter-spacing: 0.26em; }
.proc h3 { font-size: clamp(19px, 2vw, 26px); font-weight: 840; margin: 12px 0 8px; letter-spacing: 0.03em; }
.proc p { font-size: 13.5px; color: var(--ink-70); line-height: 1.7; }
@media (max-width: 900px) { .proc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .proc-grid { grid-template-columns: 1fr; } }

/* ---------- news page ---------- */
.article { max-width: 760px; margin: 0 auto; padding: calc(90px + 5vw) var(--pad) var(--sec); }
.article .date { font-family: var(--font-m); font-size: 12px; color: var(--red); letter-spacing: 0.26em; }
.article h1 { font-size: clamp(30px, 4.4vw, 56px); font-weight: 880; line-height: 1.2; margin: 18px 0 10px; }
.article .sub { font-family: var(--font-m); font-size: 12px; letter-spacing: 0.2em; color: var(--ink-45); margin-bottom: 40px; }
.article h2 { font-size: 22px; font-weight: 820; margin: 44px 0 14px; padding-left: 16px; border-left: 3px solid var(--red); }
.article p { margin-bottom: 18px; color: var(--ink-70); font-size: 16.5px; }
.article blockquote { margin: 30px 0; padding: 20px 26px; background: var(--paper-2); border-left: 3px solid var(--ink); color: var(--ink); font-weight: 600; }
.article hr { border: none; border-top: 1px solid var(--line); margin: 44px 0; }
.article .tail { background: var(--dark); color: var(--cream); padding: 26px 30px; border-radius: 4px; font-size: 15px; margin-top: 40px; }
.article .tail b { color: #fff; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; min-height: unset; padding-top: 110px; }
  .hero-art { max-width: 560px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); row-gap: 8px; }
  .stat:nth-child(3) { border-left: none; padding-left: 0; }
  .eras { grid-template-columns: 1fr; }
  .news-card { grid-template-columns: 1fr; }
  .cta-grid { grid-template-columns: 1fr; }
  .ft-grid { grid-template-columns: 1fr 1fr; }
  .hd-nav a .cn2 { display: none; }
  .cat-row { grid-template-columns: 56px 1fr auto; }
}
@media (max-width: 600px) {
  .hd-nav { gap: 14px; }
  .hd-nav a { font-size: 10px; }
  .hd-brand .en { display: none; }
  .ft-grid { grid-template-columns: 1fr; }
  .pcat-head { grid-template-columns: 1fr; }
}