/* KCM shared — cyber glass aesthetic */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #030614;
  color: #e8f4ff;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(0, 212, 255, 0.18), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 80%, rgba(99, 102, 241, 0.12), transparent 50%),
    radial-gradient(ellipse 50% 30% at 0% 60%, rgba(0, 255, 200, 0.08), transparent 45%);
  pointer-events: none;
  z-index: 0;
}

.particles {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: rgba(0, 212, 255, 0.55);
  border-radius: 50%;
  box-shadow: 0 0 6px rgba(0, 212, 255, 0.6);
  animation: float-up linear infinite;
}

@keyframes float-up {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 0.6; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.page-wrap {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem 3rem;
}

.container {
  width: 100%;
  max-width: 560px;
  padding: 2.5rem 2rem 2rem;
  border-radius: 48px;
  background: rgba(8, 16, 32, 0.72);
  border: 1px solid rgba(0, 212, 255, 0.22);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 24px 80px rgba(0, 0, 0, 0.55),
    0 0 60px rgba(0, 212, 255, 0.06);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.25), rgba(99, 102, 241, 0.2));
  border: 1px solid rgba(0, 212, 255, 0.35);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: #00d4ff;
  margin-bottom: 1.25rem;
  box-shadow: 0 0 24px rgba(0, 212, 255, 0.15);
}

.logo-img {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(0, 212, 255, 0.35);
  box-shadow: 0 0 32px rgba(0, 212, 255, 0.2);
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  font-weight: 700;
  background: linear-gradient(135deg, #ffffff 0%, #00d4ff 50%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.subtitle {
  font-size: 1rem;
  color: rgba(200, 230, 255, 0.75);
  margin-bottom: 2rem;
  position: relative;
  display: inline-block;
  padding-bottom: 0.35rem;
}

.subtitle::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #00d4ff, transparent);
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.6);
}

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
  margin-bottom: 1.5rem;
}

.nav-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.95rem 1.25rem;
  border-radius: 16px;
  background: rgba(0, 212, 255, 0.06);
  border: 1px solid rgba(0, 212, 255, 0.18);
  color: #e8f4ff;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s ease;
  font-family: inherit;
  text-align: left;
}

.nav-btn:hover,
.nav-btn:focus-visible {
  background: rgba(0, 212, 255, 0.14);
  border-color: rgba(0, 212, 255, 0.45);
  box-shadow: 0 0 24px rgba(0, 212, 255, 0.2), 0 0 0 1px rgba(0, 212, 255, 0.1) inset;
  transform: translateY(-1px);
  outline: none;
}

.nav-btn-text {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex: 1;
  min-width: 0;
}

.nav-btn-text span.icon {
  flex-shrink: 0;
  font-size: 1.1rem;
}

.nav-btn-text span.label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-btn .arrow {
  flex-shrink: 0;
  color: rgba(0, 212, 255, 0.7);
  font-size: 1.1rem;
  margin-left: 0.5rem;
}

.form-block {
  width: 100%;
  margin-bottom: 1.5rem;
}

.form-block label {
  display: block;
  font-size: 0.85rem;
  color: rgba(200, 230, 255, 0.7);
  margin-bottom: 0.5rem;
}

.input-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

input[type="text"] {
  flex: 1;
  min-width: 180px;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(0, 212, 255, 0.22);
  background: rgba(3, 6, 20, 0.8);
  color: #e8f4ff;
  font-family: 'Inter', monospace;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus {
  outline: none;
  border-color: rgba(0, 212, 255, 0.55);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.12);
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.25rem;
  border-radius: 12px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #00b4d8, #00d4ff);
  color: #030614;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.35);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(0, 212, 255, 0.45);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: #e8f4ff;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.3);
}

.steps {
  width: 100%;
  margin: 1.25rem 0 1.5rem;
  padding: 1rem 1.15rem;
  border-radius: 16px;
  background: rgba(0, 212, 255, 0.04);
  border: 1px solid rgba(0, 212, 255, 0.12);
}

.steps h3 {
  font-size: 0.9rem;
  color: #00d4ff;
  margin-bottom: 0.65rem;
}

.steps ol {
  padding-left: 1.25rem;
  font-size: 0.85rem;
  color: rgba(200, 230, 255, 0.8);
  line-height: 1.65;
}

.steps li { margin-bottom: 0.35rem; }

.msg {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  font-size: 0.85rem;
  margin-top: 0.75rem;
  display: none;
}

.msg.ok {
  display: block;
  background: rgba(0, 255, 160, 0.08);
  border: 1px solid rgba(0, 255, 160, 0.25);
  color: #7dffc8;
}

.msg.err {
  display: block;
  background: rgba(255, 80, 80, 0.08);
  border: 1px solid rgba(255, 80, 80, 0.25);
  color: #ff9a9a;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem;
  border-radius: 12px;
  background: rgba(0, 212, 255, 0.04);
  border: 1px solid rgba(0, 212, 255, 0.1);
}

.contact-row img {
  width: 120px;
  height: 120px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
}

.contact-row .info {
  flex: 1;
  font-size: 0.9rem;
  line-height: 1.6;
}

.contact-row a {
  color: #00d4ff;
  text-decoration: none;
}

.contact-row a:hover { text-decoration: underline; }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 6, 20, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.modal-overlay.open { display: flex; }

.modal {
  width: 100%;
  max-width: 440px;
  padding: 1.75rem 1.5rem;
  border-radius: 24px;
  background: rgba(8, 16, 32, 0.95);
  border: 1px solid rgba(0, 212, 255, 0.25);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6), 0 0 40px rgba(0, 212, 255, 0.08);
  position: relative;
}

.modal h2 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  color: #00d4ff;
}

.modal p {
  font-size: 0.9rem;
  color: rgba(200, 230, 255, 0.85);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.modal-links {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin: 1rem 0;
}

.modal-links a {
  display: block;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  color: #00d4ff;
  text-decoration: none;
  font-size: 0.9rem;
  transition: background 0.2s;
}

.modal-links a:hover { background: rgba(0, 212, 255, 0.15); }

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  color: #e8f4ff;
  font-size: 1.25rem;
  cursor: pointer;
  line-height: 1;
}

.modal-close:hover { background: rgba(255, 255, 255, 0.12); }

.modal .btn-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.site-footer {
  margin-top: 2rem;
  font-size: 0.8rem;
  color: rgba(200, 230, 255, 0.45);
  text-align: center;
}

/* ===== 次要入口：两列网格(两行两列), 字号缩小, 与上方主操作隔开 ===== */
.nav-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  width: 100%;
}
.nav-grid--secondary {
  margin-top: 1.5rem;
}
.nav-grid .nav-btn {
  font-size: 0.85rem;
  padding: 0.7rem 0.8rem;
}
.nav-grid .nav-btn-text { gap: 0.5rem; }
.nav-grid .nav-btn-text span.label { font-size: 0.85rem; }
.nav-grid .nav-btn .arrow { display: none; }

/* 主操作(在线支付)与下方次要入口之间留出一行空白 */
.nav-primary { margin-bottom: 0; }

.copy-btn {
  font-size: 0.8rem;
  padding: 0.4rem 0.75rem;
}

@media (max-width: 480px) {
  .page-wrap { padding: 1.25rem 1rem 2rem; }
  .container {
    padding: 1.75rem 1.25rem 1.5rem;
    border-radius: 32px;
  }
  .input-row { flex-direction: column; }
  input[type="text"] { min-width: 100%; }
  .btn-primary, .btn-secondary { width: 100%; }
  .contact-row { flex-direction: column; text-align: center; }
  .nav-btn { padding: 0.85rem 1rem; font-size: 0.88rem; }
}

/* ===== 在线支付 modal ===== */
.pay-form { display: flex; flex-direction: column; gap: 0.8rem; margin: 1rem 0; text-align: left; }
.pay-form label { display: flex; flex-direction: column; font-size: 0.85rem; color: #fff; gap: 0.35rem; }
.pay-form input, .pay-form select {
  padding: 0.6rem 0.7rem; border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.35);
  background: #2b2b2b; color: #fff; font-size: 0.95rem;
}
.pay-form input:focus, .pay-form select:focus { outline: none; border-color: #00d4ff; }
.pay-form select option { background: #2b2b2b; color: #fff; }
.pay-qr { display: flex; justify-content: center; min-height: 0; margin: 0.5rem 0; }
.pay-qr img, .pay-qr canvas { border-radius: 8px; background: #fff; padding: 8px; }
.pay-result { display: flex; justify-content: center; margin: 1rem 0 0.2rem; }
.pay-result .btn-secondary { min-width: 200px; align-self: center; }
.pay-status { font-size: 0.85rem; color: rgba(255,255,255,0.85); min-height: 1.2em; text-align: center; }
#pay-download { display: inline-block; margin: 0.5rem auto 0; }
.pay-recover { margin-top: 1rem; padding-top: 0.8rem; border-top: 1px solid rgba(255,255,255,0.15); }
.pay-recover-tip { font-size: 0.8rem; color: rgba(255,255,255,0.7); margin: 0 0 0.5rem; text-align: center; }
.pay-recover-row { display: flex; gap: 0.5rem; }
.pay-recover-row input { flex: 1; padding: 0.55rem 0.6rem; border-radius: 8px; border: 1px solid rgba(255,255,255,0.35); background: #2b2b2b; color: #fff; font-size: 0.9rem; }
.btn-secondary { padding: 0.55rem 0.9rem; border-radius: 8px; border: 1px solid rgba(255,255,255,0.35); background: rgba(255,255,255,0.1); color: #fff; font-size: 0.9rem; cursor: pointer; white-space: nowrap; }
.btn-secondary:hover { background: rgba(0,212,255,0.2); }