/* ========== 鉴印 全局样式 ========== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-ink);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* 顶部彩线 */
.top-accent {
  height: 3px;
  background: var(--accent-gradient);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

/* ========== 导航栏 ========== */
.navbar {
  position: sticky;
  top: 3px;
  z-index: 900;
  background: rgba(26, 26, 46, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
}

.nav-brand .logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.15em;
}

.nav-brand .tagline {
  font-size: 0.7rem;
  color: var(--color-gold);
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
  list-style: none;
}

.nav-links a {
  color: var(--color-ink-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.25rem 0;
}

.nav-links a:hover {
  color: var(--color-ink);
}

.nav-links a.active {
  color: var(--color-primary);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

/* 汉堡菜单 */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-ink);
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

/* 移动端导航 */
@media (max-width: 640px) {
  .navbar {
    padding: 0 1rem;
  }

  .nav-toggle {
    display: flex;
    align-items: center;
  }

  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-bg-surface);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 1rem 1.5rem;
    gap: 1rem;
    transform: translateY(-150%);
    transition: transform var(--transition-normal);
    z-index: 899;
  }

  .nav-links.open {
    transform: translateY(0);
  }
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  font-family: var(--font-body);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--color-ink-muted);
  border-color: var(--color-border);
}

.btn-ghost:hover {
  color: var(--color-ink);
  border-color: var(--color-border-hover);
}

.btn-gold {
  background: var(--color-gold-muted);
  color: var(--color-gold);
  border-color: var(--color-gold-dim);
}

.btn-gold:hover {
  background: rgba(212, 168, 83, 0.2);
}

/* ========== 卡片 ========== */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  overflow: hidden;
}

.card:hover {
  border-color: var(--color-gold-dim);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

/* ========== 弹窗 ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: fadeIn 200ms ease;
}

.modal {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  max-width: 42rem;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 250ms ease;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(0, 0, 0, 0.3);
  border: none;
  color: var(--color-ink-muted);
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  z-index: 10;
}

.modal-close:hover {
  color: var(--color-ink);
  background: rgba(0, 0, 0, 0.5);
}

.modal-close svg {
  width: 18px;
  height: 18px;
}

/* ========== Toast ========== */
.toast {
  position: fixed;
  top: 5rem;
  right: 1.5rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-gold-dim);
  color: var(--color-ink);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  box-shadow: var(--shadow-card);
  z-index: 2000;
  animation: slideInRight 200ms ease;
}

.toast.hide {
  animation: fadeOut 200ms ease forwards;
}

/* ========== 通用工具类 ========== */
.text-gold { color: var(--color-gold); }
.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-ink-muted); }
.text-faint { color: var(--color-ink-faint); }
.font-display { font-family: var(--font-display); }

.hidden { display: none !important; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }

.grid {
  display: grid;
  gap: 1rem;
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }

@media (min-width: 640px) {
  .sm\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .sm\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 768px) {
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .lg\:grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
}

@media (min-width: 1280px) {
  .xl\:grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-deep);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-hover);
}

/* ========== 动画 ========== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes heartBeat {
  0% { transform: scale(1); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* 加载动画 */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Lucide 图标默认尺寸 */
.lucide {
  width: 20px;
  height: 20px;
  stroke-width: 2;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
}