/* ============================================================================
 * _gate-shared.css · 复用的 gate-style 视觉语汇
 * 引入：<link rel="stylesheet" href="/_gate-shared.css">
 * ============================================================================ */

:root {
  --ink: #131210;
  --ink-sub: #2A2622;
  --ink-deep: #0B0A09;
  --paper: #F4EEE2;
  --paper-sub: #ECE4D3;
  --paper-dim: rgba(244,238,226,0.7);
  --paper-soft: rgba(244,238,226,0.4);
  --bronze: #8B6A3A;
  --bronze-hi: #B98D52;
  --bronze-text: #6B4F2A;
  --error: #c0392b;
  --success: #6b8b6a;

  --serif-en: 'Cormorant Garamond','EB Garamond',Georgia,serif;
  --serif-en-body: 'Source Serif 4',Georgia,serif;
  --sans-en: 'Inter',-apple-system,sans-serif;
  --serif-cn: 'Noto Serif SC','Source Han Serif SC','Songti SC','STSong',serif;
  --sans-cn: 'Noto Sans SC','PingFang SC',sans-serif;
  --mono-en: 'JetBrains Mono','Menlo',monospace;
}

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

body.gate {
  background: var(--ink-deep);
  color: var(--paper);
  min-height: 100vh;
  font-family: var(--serif-cn);
  position: relative;
  -webkit-font-smoothing: antialiased;
}
body.gate::before {
  content:''; position:fixed; inset:0;
  background-image: radial-gradient(rgba(244,238,226,0.014) 1px, transparent 1px);
  background-size: 5px 5px;
  pointer-events: none; z-index: 1;
}
body.gate::after {
  content:''; position:fixed; inset:0;
  background: radial-gradient(ellipse at center, transparent 30%, rgba(0,0,0,0.5) 100%);
  pointer-events: none; z-index: 1;
}

.corner {
  position: fixed; width: 56px; height: 56px;
  border: 1px solid var(--bronze); opacity: 0.5; z-index: 4;
}
.corner.tl { top:36px; left:36px; border-right:0; border-bottom:0; }
.corner.tr { top:36px; right:36px; border-left:0; border-bottom:0; }
.corner.bl { bottom:36px; left:36px; border-right:0; border-top:0; }
.corner.br { bottom:36px; right:36px; border-left:0; border-top:0; }

.meta-corner {
  position: fixed; font-family: var(--serif-en);
  font-style: italic; font-size: 12px; color: var(--paper-soft);
  letter-spacing: 2px; z-index: 5;
}
.meta-corner.tl { top:48px; left:110px; }
.meta-corner.tr { top:48px; right:110px; text-align:right; }
.meta-corner.bl { bottom:48px; left:110px; }
.meta-corner.br { bottom:48px; right:110px; text-align:right; }

.v-rule {
  position: fixed; top:25%; bottom:25%; width:1px;
  background: linear-gradient(to bottom, transparent, var(--bronze), transparent);
  opacity: 0.25; z-index: 1;
}
.v-rule.l { left:80px; }
.v-rule.r { right:80px; }

.nav-back {
  position: fixed; top:48px; left:50%; transform:translateX(-50%); z-index:6;
  font-family: var(--serif-en); font-style: italic; font-size: 13px;
  color: var(--paper-dim); text-decoration: none; letter-spacing: 1.2px;
  border-bottom: 1px solid transparent; padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.nav-back:hover { color: var(--paper); border-bottom-color: var(--bronze); }

main.gate-stage {
  position: relative; z-index: 2;
  max-width: 760px; margin: 0 auto;
  padding: 140px 32px 100px;
  text-align: center;
}

/* ── OPC lockup · 印章外置 · 不与 my·superid 同框 ── */
.opc-lockup-gate {
  display: inline-flex; align-items: center; gap: 28px;
  margin-bottom: 56px;
}
.opc-lockup-gate .ch {
  font-family: var(--serif-cn); font-weight: 500;
  font-size: 44px; letter-spacing: 0.42em;
  color: var(--paper); line-height: 1;
  padding-right: 0.16em;
}
.opc-lockup-gate .rule { width:1px; height:56px; background:var(--bronze); opacity:0.7; }
.opc-lockup-gate .descr {
  display: flex; flex-direction: column; gap: 6px;
  font-family: var(--serif-en); line-height: 1; text-align: left;
}
.opc-lockup-gate .descr .opc {
  font-size: 14px; font-weight: 500;
  letter-spacing: 0.32em; color: var(--bronze-hi);
  text-transform: uppercase;
}
.opc-lockup-gate .descr .counsel {
  font-size: 18px; font-weight: 500;
  letter-spacing: 0.18em; color: var(--paper);
  font-variant: small-caps;
}
.seal-external {
  display: inline-flex; align-items: center;
  width: 64px; height: 64px; margin-left: 12px;
}
.seal-external svg { width:100%; height:100%; }

.module-mark {
  font-family: var(--sans-en); font-size: 11px;
  color: var(--bronze-hi); letter-spacing: 0.42em;
  text-transform: uppercase; margin-bottom: 22px;
}
.module-title {
  font-family: var(--serif-cn); font-weight: 600;
  font-size: 46px; letter-spacing: 0.32em;
  color: var(--paper); margin-bottom: 16px; padding-right: 0.32em;
  line-height: 1.2;
}
.module-title-en {
  font-family: var(--serif-en); font-style: italic;
  font-size: 19px; color: var(--paper-soft);
  letter-spacing: 1.8px; margin-bottom: 52px;
}

.pledge {
  font-family: var(--serif-cn); font-weight: 500;
  font-size: 22px; color: var(--paper);
  letter-spacing: 0.55em; text-indent: 0.55em;
  line-height: 1.9; margin-bottom: 18px;
}
.pledge .light { color: var(--paper-dim); }
.pledge-en {
  font-family: var(--serif-en); font-style: italic;
  font-size: 15px; color: var(--paper-soft);
  letter-spacing: 2px; line-height: 1.5; margin-bottom: 64px;
}

/* ── 表单字段 ── */
.gate-form-wrap { width: 100%; max-width: 460px; margin: 0 auto; text-align: left; }
.gate-error {
  padding: 10px 14px; margin-bottom: 20px;
  border: 1px solid rgba(192,57,43,0.5);
  background: rgba(192,57,43,0.1);
  color: #e08070; font-family: var(--serif-cn);
  font-size: 13.5px; letter-spacing: 1px;
  text-align: center; min-height: 1em;
}
.gate-error:empty { display: none; }

.gate-field { margin-bottom: 18px; }
.gate-field label.lbl {
  display: block; font-family: var(--sans-en);
  font-size: 11px; letter-spacing: 3px; text-transform: uppercase;
  color: var(--paper-dim); margin-bottom: 8px; font-weight: 400;
}
.gate-field label.lbl .n {
  font-family: var(--serif-en); font-style: italic;
  color: var(--bronze-hi); margin-right: 10px; letter-spacing: 1px;
}
.gate-field label.lbl .cn {
  font-family: var(--serif-cn); font-weight: 500;
  color: var(--paper); letter-spacing: 0.32em;
  text-transform: none; margin-left: 12px; font-size: 13px;
}
.gate-field input[type=text],
.gate-field input[type=email],
.gate-field input[type=password],
.gate-field textarea {
  width: 100%; padding: 12px 16px;
  background: rgba(244,238,226,0.04);
  border: 1px solid rgba(139,106,58,0.4);
  color: var(--paper);
  font-family: var(--serif-en-body);
  font-size: 15px; letter-spacing: 0.5px;
  outline: none; transition: border-color 0.3s, background 0.3s;
  border-radius: 0;
}
.gate-field input:focus, .gate-field textarea:focus {
  border-color: var(--bronze);
  background: rgba(244,238,226,0.06);
}
.gate-field input::placeholder, .gate-field textarea::placeholder {
  color: rgba(244,238,226,0.3); font-style: italic; font-family: var(--serif-en);
}

.captcha-row { display:flex; align-items:center; gap:12px; flex-wrap:wrap; padding:4px 0; }
.captcha-row .hint { font-family:var(--serif-cn); font-size:13.5px; color:var(--paper-dim); }
.captcha-row .hint strong { color:var(--bronze-hi); font-weight:500; letter-spacing:0.3em; margin:0 4px; font-size:15px; }
.captcha-row input[type=text] { width:140px; max-width:140px; text-align:center; }

.hp-field {
  position: absolute !important; left: -9999px !important;
  width: 1px !important; height: 1px !important;
  opacity: 0 !important; pointer-events: none !important;
}

.gate-btn {
  width: 100%; margin-top: 16px;
  display: inline-flex; align-items: center; justify-content: center;
  gap: 16px; padding: 14px 36px;
  border: 1px solid var(--bronze); background: transparent;
  color: var(--paper); font-family: var(--serif-cn);
  font-size: 14px; letter-spacing: 8px; text-indent: 8px;
  cursor: pointer; transition: all 0.4s ease;
}
.gate-btn:hover { background: var(--bronze); color: var(--ink-deep); }
.gate-btn:disabled { opacity:0.5; cursor:wait; }
.gate-btn .arrow {
  width: 24px; height: 1px; background: var(--bronze);
  position: relative; transition: background 0.4s; flex-shrink: 0;
}
.gate-btn .arrow::after {
  content:''; position:absolute; right:0; top:-3px;
  width:7px; height:7px;
  border-right:1px solid var(--bronze);
  border-top:1px solid var(--bronze);
  transform: rotate(45deg); transition: border-color 0.4s;
}
.gate-btn:hover .arrow { background: var(--ink-deep); }
.gate-btn:hover .arrow::after { border-color: var(--ink-deep); }

.alt-link {
  margin-top: 28px; text-align: center;
  font-family: var(--serif-cn); font-size: 13px;
  color: var(--paper-soft); letter-spacing: 0.04em;
}
.alt-link a {
  color: var(--paper-dim); text-decoration: none;
  border-bottom: 1px solid var(--bronze); padding-bottom: 2px;
  margin-left: 8px; font-family: var(--serif-en); font-style: italic;
}
.alt-link a:hover { color: var(--paper); }

.gate-disclaimer {
  position: relative; z-index: 2;
  text-align: center; padding: 24px 32px 56px;
  font-family: var(--serif-cn); font-size: 12.5px;
  color: var(--paper-soft); line-height: 1.95;
  letter-spacing: 0.04em; max-width: 880px; margin: 0 auto;
}
.gate-disclaimer .em { color: var(--bronze-hi); font-weight: 500; }
.gate-disclaimer strong { color: var(--paper-dim); font-weight: 500; }

@media (max-width: 768px) {
  .corner { width:36px; height:36px; }
  .corner.tl { top:18px; left:18px; }
  .corner.tr { top:18px; right:18px; }
  .corner.bl { bottom:18px; left:18px; }
  .corner.br { bottom:18px; right:18px; }
  .meta-corner { font-size:10px; letter-spacing:1.2px; }
  .meta-corner.tl, .meta-corner.bl { left:64px; }
  .meta-corner.tr, .meta-corner.br { right:64px; }
  .v-rule { display:none; }
  .nav-back { top:24px; font-size:12px; }
  main.gate-stage { padding:100px 20px 80px; }
  .opc-lockup-gate { gap:18px; margin-bottom:36px; }
  .opc-lockup-gate .ch { font-size:30px; letter-spacing:0.36em; }
  .opc-lockup-gate .rule { height:40px; }
  .opc-lockup-gate .descr .opc { font-size:11px; }
  .opc-lockup-gate .descr .counsel { font-size:14px; }
  .seal-external { width:48px; height:48px; }
  .module-title { font-size:30px; letter-spacing:0.24em; }
  .module-title-en { font-size:15px; margin-bottom:40px; }
  .pledge { font-size:18px; letter-spacing:0.42em; }
  .pledge-en { font-size:13px; margin-bottom:48px; }
  .gate-form-wrap { max-width:100%; }
  .gate-btn { font-size:13px; letter-spacing:5px; text-indent:5px; padding:12px 24px; }
}