/* ─────────────────────────────────────────────
   AXIS — Shared Stylesheet v2.0
   Pass-Key Edition · 2026-02-24
───────────────────────────────────────────── */

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

:root {
  /* Palette */
  --bg:        #f4f7ff;
  --surface:   rgba(255,255,255,0.72);
  --surface2:  rgba(255,255,255,0.92);
  --border:    rgba(90,120,200,0.12);
  --border2:   rgba(90,120,200,0.24);
  --text:      #182840;
  --text2:     #1e3a5f;
  --text3:     #4a6a96;
  --glyph:     #070e29;
  --accent:    #0e2592;
  --green:     #2e7d5a;
  --lavender:  rgba(190,180,240,0.18);

  /* Buttons */
  --btn-bg:    rgba(7,14,41,0.08);
  --btn-bd:    rgba(7,14,41,0.22);
  --btn-hov:   rgba(7,14,41,0.15);

  /* Type */
  --mono:   'DM Mono','Courier New',monospace;
  --sans:   'Inter',-apple-system,sans-serif;
  --r:      8px;
}

/* ── BACKDROP (static, no parallax) ─────── */
html {
  scroll-behavior: smooth;
  background:
    /* White glow — center top */
    radial-gradient(ellipse 64% 44% at 50% 6%,
      rgba(255,255,255,1.0)  0%,
      rgba(255,255,255,0.55) 32%,
      transparent            68%),
    /* Soft atmospheric blue haze */
    radial-gradient(ellipse 110% 55% at 50% 0%,
      rgba(218,232,255,0.60) 0%,
      transparent            58%),
    /* Lilac warmth — right */
    radial-gradient(ellipse 50% 38% at 88% 22%,
      rgba(222,212,248,0.20) 0%,
      transparent            58%),
    /* Lilac warmth — left */
    radial-gradient(ellipse 50% 38% at 12% 32%,
      rgba(212,222,255,0.18) 0%,
      transparent            58%),
    /* Ring 1 — innermost */
    radial-gradient(ellipse 28% 17% at 50% 22%,
      transparent 87%, rgba(165,202,255,0.26) 89%,
      rgba(165,202,255,0.26) 91%, transparent 93%),
    /* Ring 2 */
    radial-gradient(ellipse 44% 26% at 50% 22%,
      transparent 87%, rgba(150,190,255,0.18) 89%,
      rgba(150,190,255,0.18) 91%, transparent 93%),
    /* Ring 3 */
    radial-gradient(ellipse 62% 37% at 50% 22%,
      transparent 87%, rgba(135,178,255,0.12) 89%,
      rgba(135,178,255,0.12) 91%, transparent 93%),
    /* Ring 4 */
    radial-gradient(ellipse 82% 49% at 50% 22%,
      transparent 87%, rgba(120,165,255,0.08) 89%,
      rgba(120,165,255,0.08) 91%, transparent 93%),
    /* Ring 5 — outermost */
    radial-gradient(ellipse 104% 63% at 50% 22%,
      transparent 87%, rgba(105,152,255,0.05) 89%,
      rgba(105,152,255,0.05) 91%, transparent 93%),
    /* Base gradient */
    linear-gradient(168deg,
      #f7faff  0%,
      #eef3ff 28%,
      #e8efff 55%,
      #e1eaff 80%,
      #dce6ff 100%);
  background-attachment: scroll;
}

body {
  font-size: 17px;
  font-family: var(--sans);
  background: transparent;
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.7;
}

/* ── NAV ───────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 36px; height: 64px;
  background: rgba(247,250,255,0.82);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--text);
  font-family: var(--mono); font-size: 15px; letter-spacing: 0.08em;
}
.nav-brand-mark { font-size: 17px; color: #0e2592; }
.nav-brand-wordmark { color: #0e2592; }
.nav-links {
  display: flex; align-items: center; gap: 28px; list-style: none;
  position: absolute; left: 50%; transform: translateX(-50%);
}
.nav-links a {
  font-size: 13px; font-weight: 300; color: var(--text2);
  text-decoration: none; letter-spacing: 0.02em;
  transition: color 0.18s;
}
.nav-links a:hover { color: var(--glyph); }
.nav-links a.active { color: var(--glyph); }
.nav-cta {
  display: inline-flex; align-items: center;
  padding: 8px 20px;
  background: var(--btn-bg); border: 1px solid var(--btn-bd);
  border-radius: var(--r);
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.05em;
  color: var(--glyph); text-decoration: none;
  transition: background 0.18s, border-color 0.18s, box-shadow 0.18s;
}
.nav-cta:hover {
  background: var(--btn-hov); border-color: rgba(7,14,41,0.38);
  box-shadow: 0 3px 16px rgba(7,14,41,0.12);
}
/* ── NAV — right group & hamburger ──────── */
.nav-right {
  display: flex; align-items: center; gap: 12px;
}
.nav-zh {
  font-family: var(--sans); font-size: 13px; font-weight: 400;
  color: var(--text2); text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.15s;
}
.nav-zh:hover { color: var(--text); }
.nav-link-field {
  display: inline-flex; align-items: center; gap: 6px;
}
.nav-live-dot {
  display: inline-block; width: 6px; height: 6px;
  border-radius: 50%; background: var(--glyph);
  animation: pulse 2s infinite; flex-shrink: 0;
}
@keyframes pulse {
  0%,100% { opacity: 1; } 50% { opacity: 0.25; }
}
.nav-live-badge {
  font-family: var(--mono); font-size: 9px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--glyph);
  background: rgba(7,14,41,0.08); border: 1px solid rgba(7,14,41,0.2);
  border-radius: 10px; padding: 1px 6px;
}

/* Hamburger button */
.nav-hamburger {
  display: none;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 36px; height: 36px;
  background: none; border: none; cursor: pointer; padding: 4px;
  border-radius: 6px; transition: background 0.15s; flex-shrink: 0;
}
.nav-hamburger:hover { background: var(--btn-bg); }
.nav-hamburger span {
  display: block; width: 20px; height: 1.5px;
  background: var(--text); border-radius: 2px;
  transition: transform 0.24s, opacity 0.2s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile dropdown — max-height transition avoids display:none flicker */
.nav-mobile-menu {
  position: fixed; top: 64px; left: 0; right: 0; z-index: 98;
  background: rgba(244,247,255,0.98);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.32s cubic-bezier(0.4,0,0.2,1),
              box-shadow 0.3s ease;
  box-shadow: none;
}
.nav-mobile-menu.open {
  max-height: 480px;
  box-shadow: 0 8px 32px rgba(7,14,41,0.08);
}
.nav-mobile-menu-inner {
  padding: 8px 0 20px;
}
.nav-mobile-menu a {
  display: flex; align-items: center; gap: 10px;
  font-size: 15px; font-weight: 300; color: var(--text2);
  text-decoration: none; padding: 14px 28px;
  border-bottom: 1px solid rgba(90,120,200,0.07);
  letter-spacing: 0.01em; transition: color 0.15s, background 0.15s;
}
.nav-mobile-menu a:last-child { border-bottom: none; }
.nav-mobile-menu a:hover { color: var(--glyph); background: rgba(7,14,41,0.03); }
.nav-mobile-menu a.active { color: var(--glyph); }
.nav-mobile-cta {
  margin: 12px 20px 4px !important; padding: 14px 24px !important;
  font-family: var(--mono) !important; font-size: 12px !important;
  letter-spacing: 0.06em !important; color: var(--glyph) !important;
  border: 1px solid var(--btn-bd) !important; border-radius: var(--r) !important;
  background: var(--btn-bg) !important; justify-content: center !important;
  border-bottom: none !important;
}

@media (max-width: 680px) {
  .nav { padding: 0 16px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-cta { display: none; }
}

/* ── BUTTONS ────────────────────────────── */
.btn {
  display: inline-block; padding: 12px 32px;
  background: var(--btn-bg); border: 1px solid var(--btn-bd);
  color: var(--text); font-family: var(--sans); font-size: 13px;
  font-weight: 300; letter-spacing: 0.04em; border-radius: var(--r);
  text-decoration: none; cursor: pointer;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.btn:hover {
  background: var(--btn-hov); border-color: rgba(7,14,41,0.38);
  box-shadow: 0 4px 20px rgba(7,14,41,0.1);
}
.btn-primary {
  background: rgba(7,14,41,0.13); border-color: rgba(7,14,41,0.36);
  color: var(--glyph); font-weight: 400;
  box-shadow: 0 2px 12px rgba(7,14,41,0.08);
}
.btn-primary:hover {
  background: rgba(7,14,41,0.20); border-color: rgba(7,14,41,0.50);
  box-shadow: 0 4px 28px rgba(7,14,41,0.16);
}
.btn-ghost {
  background: transparent; border-color: var(--border);
  color: var(--text2);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.6);
  border-color: var(--border2);
}
.btn-sm { padding: 9px 18px; font-size: 13px; white-space: nowrap; }
.btn-lg { padding: 15px 40px; font-size: 14px; }

/* ── LAYOUT ─────────────────────────────── */
.content { max-width: 760px; margin: 0 auto; padding: 0 28px; }
.content-sm { max-width: 480px; margin: 0 auto; padding: 0 28px; }
.content-lg { max-width: 900px; margin: 0 auto; padding: 0 28px; }

.page-body { padding-top: 64px; } /* offset for fixed nav */

/* ── SECTION LABELS ────────────────────── */
.label {
  font-family: var(--mono); font-size: 11px; font-weight: 400;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--text3);
  display: block; margin-bottom: 14px;
}

/* ── RULE ──────────────────────────────── */
.rule {
  width: 100%; height: 1px;
  background: radial-gradient(ellipse 40% 100% at 50% 50%, rgba(80,120,200,0.2), transparent);
}

/* ── SCROLL REVEAL ─────────────────────── */
.reveal {
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ── FOOTER ────────────────────────────── */
footer {
  text-align: center; padding: 32px 24px 48px;
  border-top: 1px solid var(--border);
}
.footer-glyph {
  font-family: var(--mono); font-size: 18px; color: var(--text3); margin-bottom: 8px;
}
.footer-links {
  display: flex; align-items: center; justify-content: center;
  gap: 20px; margin-bottom: 10px; flex-wrap: wrap;
}
.footer-links a {
  font-size: 12px; font-weight: 300; color: var(--text3);
  text-decoration: none; letter-spacing: 0.04em;
  transition: color 0.18s;
}
.footer-links a:hover { color: var(--text2); }
.footer-copy { font-size: 11px; font-weight: 300; color: var(--text3); letter-spacing: 0.08em; }

/* ── TOAST ─────────────────────────────── */
.toast {
  position: fixed; bottom: 28px; left: 50%;
  transform: translateX(-50%) translateY(14px);
  background: rgba(16,32,72,0.92); border: 1px solid rgba(80,120,200,0.28);
  border-radius: 5px; padding: 9px 18px;
  font-family: var(--mono); font-size: 12px; color: #b8d0f5; letter-spacing: 0.06em;
  opacity: 0; pointer-events: none;
  transition: opacity 0.22s, transform 0.22s; z-index: 9999; white-space: nowrap;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── SR ONLY ────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border-width: 0;
}

/* ── EMAIL FORM ─────────────────────────── */
.email-form { display: flex; gap: 8px; }
.email-input {
  flex: 1; padding: 11px 14px;
  background: rgba(255,255,255,0.82); border: 1px solid var(--border);
  border-radius: var(--r); font-family: var(--sans); font-size: 14px;
  font-weight: 300; color: var(--text); outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.email-input::placeholder { color: var(--text3); }
.email-input:focus {
  border-color: rgba(7,14,41,0.32);
  box-shadow: 0 0 0 3px rgba(7,14,41,0.07);
}
.email-success {
  display: none; font-size: 14px; font-weight: 300;
  color: var(--green); padding: 12px 0; letter-spacing: 0.04em;
}
@media (max-width: 480px) { .email-form { flex-direction: column; } }

/* ── GLYPH TOOLTIPS ─────────────────────── */
.axis-glyph {
  cursor: pointer;
  color: var(--glyph);
  font-family: var(--mono);
  border-bottom: 1px dashed rgba(7,14,41,0.28);
  transition: color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.axis-glyph:hover,
.axis-glyph:focus { color: var(--accent); border-color: rgba(7,14,41,0.55); outline: none; }

#axis-glyph-tip {
  position: fixed; z-index: 9000; pointer-events: none;
  background: rgba(14,24,54,0.96);
  border: 1px solid rgba(80,120,220,0.28);
  border-radius: 6px; padding: 7px 13px;
  font-family: var(--mono); font-size: 11px;
  color: #b8ccf5; letter-spacing: 0.04em; line-height: 1.55;
  max-width: 260px; opacity: 0;
  transition: opacity 0.15s;
  white-space: normal; word-break: break-word;
}
#axis-glyph-tip.visible { opacity: 1; }

/* ── SHARED TOAST ───────────────────────── */
#axis-toast {
  position: fixed; bottom: 28px; left: 50%;
  transform: translateX(-50%) translateY(14px);
  background: rgba(16,32,72,0.92); border: 1px solid rgba(80,120,200,0.28);
  border-radius: 5px; padding: 9px 18px;
  font-family: var(--mono); font-size: 12px; color: #b8d0f5; letter-spacing: 0.06em;
  opacity: 0; pointer-events: none;
  transition: opacity 0.22s, transform 0.22s; z-index: 9999; white-space: nowrap;
}
#axis-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── PROMPT CARD (dark) ─────────────────── */
.prompt-card {
  background: #0e1c36; border: 1px solid rgba(80,120,200,0.22);
  border-radius: 10px; overflow: hidden;
  box-shadow: 0 14px 60px rgba(18,45,110,0.18);
}
.prompt-card-bar {
  background: rgba(255,255,255,0.04); border-bottom: 1px solid rgba(255,255,255,0.07);
  padding: 11px 18px; display: flex; align-items: center; gap: 8px;
}
.prompt-card-dot { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,0.14); }
.prompt-card-label {
  font-family: var(--mono); font-size: 11px;
  color: rgba(180,200,240,0.40); letter-spacing: 0.07em;
}
.prompt-textarea {
  width: 100%; padding: 22px 24px 18px; background: transparent; border: none;
  font-family: var(--mono); font-size: 13.5px; font-weight: 300;
  color: #c4d8f8; line-height: 2.0; resize: none; outline: none;
  min-height: 145px; display: block;
}
.prompt-card-footer {
  border-top: 1px solid rgba(255,255,255,0.07); padding: 11px 18px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
}
.prompt-card-btn {
  display: inline-flex; align-items: center; gap: 5px; padding: 7px 14px;
  background: transparent; border: 1px solid rgba(180,200,240,0.18); border-radius: 4px;
  font-family: var(--mono); font-size: 11px; color: rgba(180,200,240,0.48);
  cursor: pointer; transition: border-color 0.15s, color 0.15s; white-space: nowrap;
  text-decoration: none;
}
.prompt-card-btn:hover { border-color: rgba(180,200,240,0.50); color: #b8d0f5; }
.prompt-card-btn.copied { color: #5acea8; border-color: rgba(90,206,168,0.38); }
.prompt-card-note {
  font-family: var(--mono); font-size: 11px; color: rgba(180,200,240,0.30);
  letter-spacing: 0.04em;
}

/* ── HERO (shared base) ─────────────────── */
.page-hero { text-align: center; padding: 100px 28px 72px; }
.page-hero-title {
  font-size: clamp(34px, 5vw, 52px); font-weight: 200;
  letter-spacing: 0.12em; color: var(--text); margin-bottom: 14px; line-height: 1.08;
}
.page-hero-sub {
  font-size: clamp(19px, 2.2vw, 22px); font-weight: 300; color: var(--text2);
  max-width: 480px; margin: 0 auto 8px; line-height: 1.6;
}
.page-hero-line {
  font-family: var(--mono); font-size: 12px; color: var(--text3);
  letter-spacing: 0.07em;
}

/* ── ABOUT / CONTENT SECTIONS ───────────── */
.content-section { margin-bottom: 64px; }
.content-section:last-child { margin-bottom: 0; }
.content-body {
  font-size: clamp(16px, 2vw, 18px); font-weight: 300;
  color: var(--text2); line-height: 1.7;
}
.content-body p + p { margin-top: 20px; }
.content-divider {
  height: 1px;
  background: radial-gradient(ellipse 50% 100% at 50% 50%, var(--border2), transparent);
  margin: 56px 0;
}

/* ── FAQ ACCORDION ──────────────────────── */
.faq-list { margin-bottom: 0; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-q {
  font-size: 15px; font-weight: 400; color: var(--text);
  padding: 20px 0; cursor: pointer; letter-spacing: 0.01em;
  display: flex; justify-content: space-between; align-items: flex-start; gap: 16px;
  background: none; border: none; width: 100%; text-align: left;
}
.faq-q-arrow {
  font-family: var(--mono); font-size: 14px; color: var(--text3);
  transition: transform 0.22s, color 0.2s; flex-shrink: 0; margin-top: 2px;
}
.faq-item.open .faq-q-arrow { transform: rotate(90deg); color: var(--glyph); }
.faq-a {
  font-size: 13.5px; font-weight: 300; color: var(--text2);
  line-height: 1.82; max-height: 0; overflow: hidden; opacity: 0;
  transition: max-height 0.42s ease, opacity 0.3s ease, padding-bottom 0.3s ease;
  padding-bottom: 0;
}
.faq-item.open .faq-a { max-height: 800px; opacity: 1; padding-bottom: 22px; }
.faq-a p + p { margin-top: 12px; }
@media (hover: hover) {
  .faq-item:hover .faq-a { max-height: 800px; opacity: 1; padding-bottom: 22px; }
  .faq-item:hover .faq-q-arrow { transform: rotate(90deg); color: var(--glyph); }
}

/* ── FOOTER EMAIL ───────────────────────── */
.footer-email-wrap {
  max-width: 320px; margin: 18px auto 16px;
}
.footer-email-wrap .email-form { gap: 6px; }
.footer-email-wrap .email-input {
  font-size: 13px; padding: 9px 12px;
}
.footer-email-wrap .btn { padding: 9px 16px; font-size: 12px; }
.footer-email-wrap .axis-form-success {
  font-family: var(--mono); font-size: 12px; color: var(--green);
  letter-spacing: 0.06em; padding: 10px 0; text-align: center;
}
.footer-email-wrap .axis-form-error {
  font-size: 12px; color: #c0392b; margin-top: 6px; text-align: center;
}

/* ── OPERATOR GLYPH POLISH (Part 8) ────── */
.no-glyph-wrap { font-feature-settings: "liga" 0; }
.axis-operators { letter-spacing: 0.04em; font-feature-settings: "liga" 0; }

/* ── LOGIN MODAL (Part 7) ──────────────── */
.axis-login-overlay {
  position: fixed; inset: 0; z-index: 900;
  background: rgba(10,20,50,0.44); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px; opacity: 0; pointer-events: none;
  transition: opacity 0.22s ease;
}
.axis-login-overlay.open { opacity: 1; pointer-events: auto; }
.axis-login-card {
  background: var(--surface2); border: 1px solid var(--border2);
  border-radius: 12px; padding: 40px 36px 32px;
  max-width: 360px; width: 100%;
  box-shadow: 0 24px 80px rgba(10,30,100,0.16);
  transform: translateY(8px); transition: transform 0.24s ease;
  position: relative; text-align: center;
}
.axis-login-overlay.open .axis-login-card { transform: translateY(0); }
.axis-login-close {
  position: absolute; top: 14px; right: 14px;
  background: none; border: none; cursor: pointer;
  font-family: var(--mono); font-size: 16px; color: var(--text3);
  padding: 4px 8px; border-radius: 4px;
  transition: color 0.15s; line-height: 1;
}
.axis-login-close:hover { color: var(--text); }
.axis-login-msg {
  font-size: 15px; font-weight: 300; color: var(--text2);
  letter-spacing: 0.01em; margin: 0;
}

/* ── Reference card operator definitions ── */
.ref-defs {
  margin-bottom: 36px;
}
.ref-defs-label {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text3);
  display: block;
  margin-bottom: 16px;
}
.ref-defs-group {
  margin-bottom: 10px;
}
.ref-defs-group-label {
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 400;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text3);
  opacity: 0.6;
  display: block;
  margin-bottom: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.ref-def-row {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 0 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
}
.ref-def-glyph {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 300;
  color: var(--glyph);
  padding-top: 2px;
}
.ref-def-name {
  font-family: var(--mono);
  font-size: 8.5px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text3);
  display: block;
  margin-bottom: 3px;
}
.ref-def-def {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 300;
  color: var(--text);
  line-height: 1.55;
  display: block;
  margin-bottom: 5px;
}
.ref-def-ex {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 300;
  color: var(--text2);
  display: block;
}
@media print {
  .ref-defs { display: none !important; }
}

/* ── Footer attribution ── */
.footer-attr {
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 300;
  color: var(--text3);
  opacity: 0.7;
  letter-spacing: 0.01em;
  margin-top: 4px;
}

/* ── FOOTER GRID (3-col) ────────────────── */
.footer-grid-wrap {
  max-width: 760px; margin: 0 auto; padding: 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.4fr;
  gap: 52px;
  padding: 64px 0 48px;
}
.footer-col-mark {
  font-family: var(--mono); font-size: 16px; color: var(--text3);
  margin-bottom: 14px; display: block;
}
.footer-col-name {
  font-size: 12px; font-weight: 400; color: var(--text);
  letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 10px;
}
.footer-col-title-zh {
  font-weight: 200; color: var(--text3); letter-spacing: 0.04em;
}
.footer-col-desc {
  font-size: 13px; font-weight: 300; color: var(--text3);
  line-height: 1.65; margin-bottom: 18px;
}
.footer-col-links {
  display: flex; flex-direction: column; gap: 9px;
}
.footer-col-links a {
  font-size: 12px; font-weight: 300; color: var(--text3);
  text-decoration: none; letter-spacing: 0.02em;
  transition: color 0.15s;
}
.footer-col-links a:hover { color: var(--text2); }
.footer-col-cta {
  font-family: var(--mono); font-size: 12px; font-weight: 300;
  color: var(--glyph); text-decoration: none; letter-spacing: 0.06em;
  opacity: 0.65; transition: opacity 0.15s;
}
.footer-col-cta:hover { opacity: 1; }
.footer-col-list {
  list-style: none; padding: 0; margin: 0 0 18px;
}
.footer-col-list li {
  font-size: 12px; font-weight: 300; color: var(--text3);
  line-height: 1.8; padding-left: 14px; position: relative;
}
.footer-col-list li::before {
  content: '·'; position: absolute; left: 0;
  color: var(--text3); font-family: var(--mono);
}
.footer-access-form {
  display: flex; flex-direction: column; gap: 8px;
}
.footer-access-input {
  padding: 9px 12px;
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  font-family: var(--sans); font-size: 13px; font-weight: 300;
  color: var(--text); outline: none; transition: border-color 0.2s;
  width: 100%; box-sizing: border-box;
}
.footer-access-input:focus { border-color: var(--glyph); }
.footer-base {
  border-top: 1px solid var(--border);
  padding: 20px 0 32px;
  display: flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 300; color: var(--text3);
  letter-spacing: 0.06em;
}
.footer-base-sep { color: var(--border2); }
@media (max-width: 680px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 48px 0 32px;
  }
}

/* ── FOOTER MINIMAL ─────────────────────── */
.footer-min {
  text-align: center;
  max-width: 760px; margin: 0 auto; padding: 32px 28px 48px;
}
.footer-min-nav {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 24px; margin-bottom: 20px;
}
.footer-min-nav a {
  font-size: 13px; font-weight: 300; color: var(--text3);
  text-decoration: none; letter-spacing: 0.02em; transition: color 0.15s;
}
.footer-min-nav a:hover { color: var(--text2); }
.footer-min-copy {
  font-size: 11px; font-weight: 300; color: var(--text3); letter-spacing: 0.06em;
}
.footer-min-sub {
  font-size: 11px; font-weight: 300; color: var(--text3); letter-spacing: 0.04em; margin-top: 4px; opacity: 0.7;
}