/*
 * 醉云主站 Portal - 全局样式
 * 设计语言：暗色画廊背景 + 金色品牌强调 + 卡片式信息组织
 * 作者: zuiyun668
 */

/* ===== 设计 Token ===== */
:root {
  /* 背景色（画廊风暗黑系） */
  --color-bg-primary:    #0a0a0a;
  --color-bg-secondary:  #141414;
  --color-bg-tertiary:   #1a1a1a;
  --color-bg-elevated:   #222222;
  --color-bg-overlay:    rgba(0,0,0,0.75);

  /* 文字色 */
  --color-text-primary:    #f5f5f5;
  --color-text-secondary:  rgba(245,245,245,0.72);
  --color-text-muted:      rgba(245,245,245,0.45);
  --color-text-disabled:   rgba(245,245,245,0.25);

  /* 品牌强调色（醉云金） */
  --color-accent:          #d4af37;
  --color-accent-hover:    #e5c158;
  --color-accent-pressed:  #b8941f;
  --color-accent-soft:     rgba(212,175,55,0.12);

  /* 7 大业务板块标识色 */
  --color-cat-tobacco:     #c0392b;
  --color-cat-engineering: #2980b9;
  --color-cat-software:    #16a085;
  --color-cat-projects:    #8e44ad;
  --color-cat-free:        #27ae60;
  --color-cat-custom:      #e67e22;
  --color-cat-live:        #e91e63;

  /* 中性色阶 */
  --color-gray-50:  #fafafa;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e5e5e5;
  --color-gray-300: #d4d4d4;
  --color-gray-400: #a3a3a3;
  --color-gray-500: #737373;
  --color-gray-600: #525252;
  --color-gray-700: #404040;
  --color-gray-800: #262626;
  --color-gray-900: #171717;

  /* 功能色 */
  --color-success:  #22c55e;
  --color-warning:  #f59e0b;
  --color-error:    #ef4444;
  --color-info:     #3b82f6;

  /* 边框 */
  --color-border:        rgba(255,255,255,0.08);
  --color-border-strong: rgba(255,255,255,0.16);
  --color-border-accent: rgba(212,175,55,0.45);

  /* 阴影 */
  --shadow-sm:    0 1px 2px rgba(0,0,0,0.3);
  --shadow-md:    0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg:    0 8px 30px rgba(0,0,0,0.5);
  --shadow-gold:  0 0 30px rgba(212,175,55,0.3);

  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.6s cubic-bezier(0.4,0,0.2,1);

  /* 字体栈 */
  --font-display: 'Outfit', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei',
                  system-ui, -apple-system, sans-serif;
  --font-body: 'Outfit', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei',
               'Helvetica Neue', system-ui, -apple-system, sans-serif;
  --font-nav: 'Space Grotesk', 'Noto Sans SC', 'PingFang SC', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'STSong', Georgia, serif;

  /* 字号 */
  --fs-hero:    clamp(3rem, 8vw, 6rem);
  --fs-h1:      clamp(2rem, 5vw, 3.5rem);
  --fs-h2:      clamp(1.5rem, 3vw, 2.25rem);
  --fs-h3:      clamp(1.2rem, 2vw, 1.75rem);
  --fs-h4:      1.125rem;
  --fs-body:    clamp(0.95rem, 1.2vw, 1.05rem);
  --fs-small:   0.875rem;
  --fs-caption: 0.75rem;
  --fs-micro:   0.6875rem;

  /* 间距（8px 基准） */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* 圆角 */
  --radius-none: 0;
  --radius-sm:   2px;
  --radius-md:   4px;
  --radius-lg:   8px;
  --radius-full: 9999px;

  /* 容器 */
  --container-max: 1280px;
  --container-narrow: 960px;
  --container-wide: 1600px;
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  overflow-x: hidden;
  animation: pageIn 0.4s ease;
}
a { color: inherit; text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-accent); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

@keyframes pageIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes bounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(8px); } }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  body { animation: none; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ===== 容器与栅格 ===== */
.container        { max-width: var(--container-max); margin: 0 auto; padding: 0 var(--space-5); }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--space-5); }
.container-wide   { max-width: var(--container-wide); margin: 0 auto; padding: 0 var(--space-5); }
.grid       { display: grid; gap: var(--space-5); }
.grid-2     { grid-template-columns: repeat(2, 1fr); }
.grid-3     { grid-template-columns: repeat(3, 1fr); }
.grid-4     { grid-template-columns: repeat(4, 1fr); }

/* ===== 通用组件：按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 40px;
  padding: 0 var(--space-5);
  font-size: var(--fs-body);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-sm { height: 32px; padding: 0 var(--space-3); font-size: 13px; }
.btn-lg { height: 48px; padding: 0 var(--space-7); font-size: 16px; }
.btn-primary {
  background: var(--color-accent);
  color: #0a0a0a;
  border-color: var(--color-accent);
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #0a0a0a;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-ghost {
  background: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
}
.btn-ghost:hover:not(:disabled) {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.btn-link {
  background: transparent;
  color: var(--color-accent);
  padding: 0;
  height: auto;
}
.btn-link:hover:not(:disabled) { color: var(--color-accent-hover); text-decoration: underline; }
.btn-danger {
  background: var(--color-error);
  color: #fff;
  border-color: var(--color-error);
}
.btn-danger:hover:not(:disabled) { background: #dc2626; transform: translateY(-1px); }
.btn-block { display: flex; width: 100%; }

/* ===== 通用组件：卡片 ===== */
.card {
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  padding: var(--space-5);
  transition: all var(--transition-base);
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-accent);
}

/* ===== 通用组件：表单 ===== */
.form-group { margin-bottom: var(--space-4); }
.form-group label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  font-weight: 500;
}
.form-group label .required { color: var(--color-error); margin-left: 2px; }
.input, .select, textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast);
}
.input:focus, .select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}
.input::placeholder, textarea::placeholder { color: var(--color-text-muted); }
textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.form-error {
  color: var(--color-error);
  font-size: var(--fs-small);
  margin-top: var(--space-1);
  display: none;
}
.form-error.show { display: block; }
.form-hint { color: var(--color-text-muted); font-size: var(--fs-small); margin-top: var(--space-1); }

/* ===== 通用组件：标签 ===== */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 2px var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--fs-caption);
  background: rgba(255,255,255,0.06);
  color: var(--color-text-secondary);
}
.tag::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}
.tag-tobacco     { background: rgba(192,57,43,0.12); color: #ff6b5a; }
.tag-tobacco::before     { background: var(--color-cat-tobacco); }
.tag-engineering { background: rgba(41,128,185,0.12); color: #5dade8; }
.tag-engineering::before { background: var(--color-cat-engineering); }
.tag-software    { background: rgba(22,160,133,0.12); color: #48d1b3; }
.tag-software::before    { background: var(--color-cat-software); }
.tag-projects    { background: rgba(142,68,173,0.12); color: #bb8fce; }
.tag-projects::before    { background: var(--color-cat-projects); }
.tag-free        { background: rgba(39,174,96,0.12); color: #58d68d; }
.tag-free::before        { background: var(--color-cat-free); }
.tag-custom      { background: rgba(230,126,34,0.12); color: #f0b27a; }
.tag-custom::before      { background: var(--color-cat-custom); }
.tag-live        { background: rgba(233,30,99,0.12); color: #f584ae; }
.tag-live::before        { background: var(--color-cat-live); }

/* ===== 顶部导航（增强动效版） ===== */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
  background: rgba(10,10,10,0.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}
/* 滚动后导航栏加深 + 阴影 */
.top-nav.scrolled {
  background: rgba(10,10,10,0.92);
  border-bottom-color: var(--color-border-strong);
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
}

.top-nav .logo {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: 4px;
  flex-shrink: 0;
  position: relative;
  transition: text-shadow var(--transition-base), transform var(--transition-fast);
}
.top-nav .logo:hover {
  text-shadow: 0 0 20px rgba(212,175,55,0.6);
  transform: scale(1.05);
}
/* Logo 下划线动效 */
.top-nav .logo::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}
.top-nav .logo:hover::after { transform: scaleX(1); }

.top-nav .nav-center {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  flex: 1;
  justify-content: center;
}
.top-nav .nav-link {
  font-family: var(--font-nav);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-3);
  position: relative;
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
  border-radius: var(--radius-md);
  letter-spacing: 0.5px;
}
/* 悬浮胶囊背景 */
.top-nav .nav-link::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(212,175,55,0.12), rgba(212,175,55,0.04));
  border-radius: var(--radius-md);
  opacity: 0;
  transform: scale(0.85);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  z-index: -1;
}
/* 底部下划线（从中间展开） */
.top-nav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
  transform: translateX(-50%);
  transition: width var(--transition-base);
}
.top-nav .nav-link:hover {
  color: var(--color-accent);
  transform: translateY(-1px);
}
.top-nav .nav-link:hover::before {
  opacity: 1;
  transform: scale(1);
}
.top-nav .nav-link:hover::after { width: 60%; }

.top-nav .nav-link.active {
  color: var(--color-accent);
}
.top-nav .nav-link.active::after {
  width: 60%;
  background: var(--color-accent);
  box-shadow: 0 0 8px rgba(212,175,55,0.5);
}

/* 导航项容器：下拉触发区 */
.nav-item.has-dropdown { position: relative; }
.nav-item.has-dropdown .nav-link::after { width: 0; }
.nav-item.has-dropdown:hover .nav-link::after { width: 60%; }

/* 下拉菜单增强 */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 180px;
  background: rgba(20,20,20,0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 40px rgba(0,0,0,0.6);
  padding: var(--space-2);
  display: block;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}
.nav-item.has-dropdown:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown a {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast), padding-left var(--transition-fast);
}
.nav-dropdown a:hover {
  color: var(--color-accent);
  background: rgba(212,175,55,0.1);
  padding-left: var(--space-4);
}

/* 语言切换按钮 */
.lang-toggle {
  background: transparent;
  border: 1px solid var(--color-border-strong);
  color: var(--color-text-secondary);
  font-family: var(--font-nav);
  font-size: var(--fs-small);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: 1px;
}
.lang-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-soft);
  transform: scale(1.05);
}

.top-nav .nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}
.top-nav .nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-text-primary);
}
.user-menu { position: relative; }
.user-menu-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  font-size: var(--fs-small);
}
.user-menu-trigger:hover { background: var(--color-bg-elevated); }
.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #0a0a0a;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 13px;
}
.user-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: var(--space-2);
  min-width: 160px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  padding: var(--space-2);
  display: none;
}
.user-dropdown.show { display: block; }
.user-dropdown a, .user-dropdown button {
  display: block;
  width: 100%;
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
}
.user-dropdown a:hover, .user-dropdown button:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-accent);
}

/* 移动端汉堡菜单 */
@media (max-width: 1023px) {
  .top-nav { padding: 0 var(--space-4); height: 56px; }
  .top-nav .nav-center {
    position: fixed;
    top: 56px;
    left: 0;
    bottom: 0;
    width: 80vw;
    max-width: 320px;
    background: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: var(--space-5);
    gap: var(--space-3);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    z-index: 999;
  }
  .top-nav .nav-center.is-open { transform: translateX(0); }
  .top-nav .nav-link {
    width: 100%;
    padding: var(--space-3) 0;
    font-size: var(--fs-body);
    border-bottom: 1px solid var(--color-border);
  }
  .top-nav .nav-toggle { display: inline-flex; }
}
.nav-backdrop {
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  z-index: 998;
  display: none;
}
.nav-backdrop.show { display: block; }

/* ===== Hero 区 ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-9) var(--space-5);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(10,10,10,0.85) 0%, rgba(20,20,20,0.75) 100%),
    radial-gradient(ellipse at top, rgba(212,175,55,0.15) 0%, transparent 60%),
    #0a0a0a;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(212,175,55,0.08) 0%, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(212,175,55,0.05) 0%, transparent 40%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero h1 {
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-accent) 0%, #f5f5f5 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 8px;
  margin-bottom: var(--space-5);
}
.hero .hero-subtitle {
  font-family: var(--font-nav);
  font-size: var(--fs-h3);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-7);
  letter-spacing: 2px;
}
.hero .hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}
.hero-scroll-hint {
  position: absolute;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  animation: bounce 2s ease-in-out infinite;
}
@media (max-width: 767px) {
  .hero { min-height: 80vh; padding: var(--space-8) var(--space-4); }
  .hero h1 { letter-spacing: 4px; }
  .hero .hero-actions { flex-direction: column; width: 100%; max-width: 320px; margin: 0 auto; }
  .hero .hero-actions .btn { width: 100%; }
}

/* ===== 区块标题 ===== */
.section { padding: var(--space-9) 0; }
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--space-7);
  flex-wrap: wrap;
  gap: var(--space-4);
}
.section-title {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: 2px;
  position: relative;
  padding-left: var(--space-5);
}
.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 70%;
  background: var(--color-accent);
}
.section-subtitle {
  font-size: var(--fs-body);
  color: var(--color-text-secondary);
  margin-top: var(--space-2);
}
.section-more {
  font-size: var(--fs-small);
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.section-more:hover { color: var(--color-accent-hover); }

/* ===== 8 大业务入口 ===== */
.sections-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
.section-card {
  position: relative;
  height: 220px;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-base);
  overflow: hidden;
}
.section-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--cat-color, var(--color-accent));
}
.section-card::after {
  /* 主题色光晕（hover 时显现） */
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 100% 0%, var(--cat-color, transparent) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}
.section-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.5), 0 0 0 1px var(--cat-color, var(--color-accent));
  border-color: var(--cat-color, var(--color-border-accent));
}
.section-card:hover::after { opacity: 0.12; }
.section-card .section-icon {
  font-size: 32px;
  color: var(--cat-color, var(--color-accent));
}
.section-card .section-name {
  font-family: var(--font-nav);
  font-size: var(--fs-h3);
  font-weight: 600;
  color: var(--color-text-primary);
}
.section-card .section-desc {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.section-card .section-layout-tag {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  font-size: var(--fs-micro);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.08);
  color: var(--color-text-muted);
  letter-spacing: 0.5px;
  font-family: var(--font-mono);
  border: 1px solid var(--color-border);
}
.section-card[data-cat="tobacco"]     { --cat-color: var(--color-cat-tobacco); }
.section-card[data-cat="engineering"] { --cat-color: var(--color-cat-engineering); }
.section-card[data-cat="software"]    { --cat-color: var(--color-cat-software); }
.section-card[data-cat="projects"]    { --cat-color: var(--color-cat-projects); }
.section-card[data-cat="free"]        { --cat-color: var(--color-cat-free); }
.section-card[data-cat="custom"]      { --cat-color: var(--color-cat-custom); }
.section-card[data-cat="live"]        { --cat-color: var(--color-cat-live); }
.section-card[data-cat="cognition"]   { --cat-color: #45A29E; }

@media (max-width: 1023px) {
  .sections-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .sections-grid { grid-template-columns: 1fr; }
}

/* ===== 内容卡片（列表页/首页最新） ===== */
.items-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
@media (max-width: 1023px) { .items-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 900px)  { .items-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  { .items-grid { grid-template-columns: 1fr; } }

.item-card {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}
.item-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-accent);
}
.item-card .item-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--color-bg-elevated);
  object-fit: cover;
  transition: transform var(--transition-base);
}
.item-card:hover .item-cover { transform: scale(1.05); }
.item-card .item-body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--space-2);
}
.item-card .item-tag-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}
.item-card .item-title {
  font-family: var(--font-nav);
  font-size: var(--fs-h4);
  font-weight: 600;
  color: var(--color-text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}
.item-card .item-summary {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.item-card .item-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}
.item-card .item-price {
  font-family: var(--font-mono);
  font-size: var(--fs-h4);
  font-weight: 700;
  color: var(--color-accent);
}
.item-card .item-price.free { color: var(--color-success); }
.item-card .item-price.negotiable { font-size: var(--fs-small); color: var(--color-text-secondary); }

/* ===== 空状态 ===== */
.empty-state {
  text-align: center;
  padding: var(--space-9) var(--space-5);
  color: var(--color-text-muted);
}
.empty-state .empty-icon {
  font-size: 48px;
  color: var(--color-text-disabled);
  margin-bottom: var(--space-4);
}
.empty-state .empty-title {
  font-size: var(--fs-h4);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}
.empty-state .empty-desc {
  font-size: var(--fs-small);
}

/* ===== 加载状态 ===== */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-7);
  color: var(--color-text-muted);
  gap: var(--space-3);
}
.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-border-strong);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ===== 分页 ===== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-7);
  flex-wrap: wrap;
}
.pagination button, .pagination a {
  min-width: 36px;
  height: 36px;
  padding: 0 var(--space-3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  background: transparent;
  transition: all var(--transition-fast);
}
.pagination button:hover:not(:disabled), .pagination a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.pagination button.active, .pagination a.active {
  background: var(--color-accent);
  color: #0a0a0a;
  border-color: var(--color-accent);
  font-weight: 600;
}
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination .ellipsis { color: var(--color-text-muted); padding: 0 var(--space-2); }

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .separator { color: var(--color-text-disabled); }
.breadcrumb .current { color: var(--color-text-secondary); }

/* ===== 板块头部 ===== */
.section-hero {
  position: relative;
  padding: var(--space-8) 0 var(--space-7);
  border-bottom: 1px solid var(--color-border);
  background: linear-gradient(180deg, var(--cat-color-soft, transparent) 0%, transparent 100%);
}
.section-hero[data-cat="tobacco"]     { --cat-color-soft: rgba(192,57,43,0.08); --cat-color: var(--color-cat-tobacco); }
.section-hero[data-cat="engineering"] { --cat-color-soft: rgba(41,128,185,0.08); --cat-color: var(--color-cat-engineering); }
.section-hero[data-cat="software"]    { --cat-color-soft: rgba(22,160,133,0.08); --cat-color: var(--color-cat-software); }
.section-hero[data-cat="projects"]    { --cat-color-soft: rgba(142,68,173,0.08); --cat-color: var(--color-cat-projects); }
.section-hero[data-cat="free"]        { --cat-color-soft: rgba(39,174,96,0.08); --cat-color: var(--color-cat-free); }
.section-hero[data-cat="custom"]      { --cat-color-soft: rgba(230,126,34,0.08); --cat-color: var(--color-cat-custom); }
.section-hero[data-cat="live"]        { --cat-color-soft: rgba(233,30,99,0.08); --cat-color: var(--color-cat-live); }
.section-hero h1 {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}
.section-hero .section-desc {
  font-size: var(--fs-body);
  color: var(--color-text-secondary);
  max-width: 720px;
}

/* 工具栏（搜索+排序） */
.toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
.toolbar .search-box {
  flex: 1;
  min-width: 240px;
  position: relative;
}
.toolbar .search-box input {
  padding-left: 38px;
}
.toolbar .search-box .search-icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}
.toolbar .sort-select {
  width: auto;
  min-width: 140px;
}

/* ===== 详情页 ===== */
.detail-layout {
  display: grid;
  grid-template-columns: 60% 40%;
  gap: var(--space-7);
  align-items: start;
}
@media (max-width: 1023px) {
  .detail-layout { grid-template-columns: 1fr; }
}
.detail-cover {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius-md);
  background: var(--color-bg-elevated);
  margin-bottom: var(--space-4);
}
.detail-gallery {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  padding-bottom: var(--space-2);
}
.detail-gallery img {
  width: 120px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color var(--transition-fast);
}
.detail-gallery img:hover, .detail-gallery img.active {
  border-color: var(--color-accent);
}
.detail-content {
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--color-text-primary);
}
.detail-content h1, .detail-content h2, .detail-content h3 {
  font-family: var(--font-nav);
  margin: var(--space-6) 0 var(--space-3);
  color: var(--color-text-primary);
}
.detail-content h1 { font-size: var(--fs-h2); }
.detail-content h2 { font-size: var(--fs-h3); }
.detail-content h3 { font-size: var(--fs-h4); }
.detail-content p { margin-bottom: var(--space-4); }
.detail-content ul, .detail-content ol {
  margin: var(--space-3) 0 var(--space-3) var(--space-5);
  list-style: disc;
}
.detail-content ol { list-style: decimal; }
.detail-content li { margin-bottom: var(--space-2); }
.detail-content code {
  background: var(--color-bg-elevated);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.9em;
  color: var(--color-accent);
}
.detail-content pre {
  background: var(--color-bg-elevated);
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: var(--space-4) 0;
}
.detail-content pre code { background: transparent; padding: 0; color: var(--color-text-primary); }
.detail-content img { max-width: 100%; border-radius: var(--radius-sm); margin: var(--space-4) 0; }
.detail-content blockquote {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-4);
  color: var(--color-text-secondary);
  margin: var(--space-4) 0;
  font-style: italic;
}
.detail-content a { color: var(--color-accent); text-decoration: underline; }

.detail-sidebar {
  position: sticky;
  top: 88px;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.detail-title {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  color: var(--color-text-primary);
  line-height: 1.2;
  margin-bottom: var(--space-3);
}
.detail-meta {
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.price-card {
  background: var(--color-accent-soft);
  border: 1px solid var(--color-border-accent);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}
.price-card .price-label {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}
.price-card .price-value {
  font-family: var(--font-mono);
  font-size: var(--fs-h2);
  font-weight: 700;
  color: var(--color-accent);
}
.price-card .price-value.free { color: var(--color-success); }
.price-card .price-value.negotiable { font-size: var(--fs-h4); color: var(--color-text-secondary); }
.detail-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.detail-actions .btn { width: 100%; }

/* ===== 评论区 ===== */
.comments-section {
  margin-top: var(--space-8);
  padding-top: var(--space-7);
  border-top: 1px solid var(--color-border);
}
.comments-title {
  font-family: var(--font-nav);
  font-size: var(--fs-h2);
  color: var(--color-text-primary);
  margin-bottom: var(--space-5);
}
.comment-form {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  margin-bottom: var(--space-6);
}
.comment-form textarea {
  min-height: 80px;
  margin-bottom: var(--space-3);
}
.comment-form .form-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
}
.comment-login-hint {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  text-align: center;
  margin-bottom: var(--space-6);
  color: var(--color-text-secondary);
}
.comment-login-hint a { color: var(--color-accent); }
.comment-list { display: flex; flex-direction: column; gap: var(--space-4); }
.comment-item {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}
.comment-item.is-reply {
  margin-left: var(--space-6);
  border-left: 2px solid var(--color-accent);
}
.comment-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.comment-author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: var(--fs-small);
  color: var(--color-text-primary);
}
.comment-time {
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
  margin-left: auto;
}
.comment-content {
  font-size: var(--fs-body);
  color: var(--color-text-primary);
  line-height: 1.6;
  word-wrap: break-word;
  white-space: pre-wrap;
}
.comment-actions {
  margin-top: var(--space-3);
  display: flex;
  gap: var(--space-4);
}
.comment-actions button {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  padding: 0;
}
.comment-actions button:hover { color: var(--color-accent); }
.comment-reply-form {
  margin-top: var(--space-3);
  display: none;
}
.comment-reply-form.show { display: block; }
.comment-reply-form textarea {
  min-height: 60px;
  margin-bottom: var(--space-2);
}

/* ===== 联系页 ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 60% 40%;
  gap: var(--space-7);
  align-items: start;
}
@media (max-width: 1023px) {
  .contact-layout { grid-template-columns: 1fr; }
}
.contact-info-card {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-7);
  text-align: center;
}
.contact-info-card .owner-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-pressed));
  color: #0a0a0a;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  font-weight: 700;
  margin-bottom: var(--space-4);
}
.contact-info-card .owner-name {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}
.contact-info-list { text-align: left; }
.contact-info-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--fs-small);
}
.contact-info-list li:last-child { border-bottom: none; }
.contact-info-list .info-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-bg-elevated);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  flex-shrink: 0;
}
.contact-info-list .info-label {
  color: var(--color-text-muted);
  width: 60px;
  flex-shrink: 0;
}
.contact-info-list .info-value {
  color: var(--color-text-primary);
  word-break: break-all;
}

/* Honeypot 隐藏字段 */
.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* ===== 关于站长（首页） ===== */
.about-section {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--space-7);
  align-items: center;
}
@media (max-width: 767px) {
  .about-section { grid-template-columns: 1fr; text-align: center; }
}
.about-avatar {
  width: 280px;
  height: 280px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-pressed));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 100px;
  font-weight: 700;
  color: #0a0a0a;
  font-family: var(--font-display);
  margin: 0 auto;
}
.about-text h2 {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}
.about-text p {
  font-size: var(--fs-body);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-3);
}

/* ===== CTA 区 ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-pressed) 100%);
  padding: var(--space-8) var(--space-5);
  text-align: center;
  border-radius: var(--radius-md);
  margin: var(--space-9) 0;
}
.cta-banner h2 {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  color: #0a0a0a;
  margin-bottom: var(--space-4);
}
.cta-banner p {
  font-size: var(--fs-body);
  color: rgba(10,10,10,0.75);
  margin-bottom: var(--space-5);
}
.cta-banner .btn { background: #0a0a0a; color: var(--color-accent); border-color: #0a0a0a; }
.cta-banner .btn:hover { background: #1a1a1a; color: var(--color-accent); transform: translateY(-1px); }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-7) var(--space-5) var(--space-5);
  margin-top: var(--space-9);
}
.footer-grid {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-7);
  margin-bottom: var(--space-6);
}
@media (max-width: 767px) {
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-5); }
}
.footer-brand .footer-logo {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  color: var(--color-accent);
  margin-bottom: var(--space-2);
  letter-spacing: 4px;
}
.footer-brand p {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.footer-col h4 {
  font-family: var(--font-nav);
  font-size: var(--fs-small);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  font-weight: 600;
}
.footer-col ul li {
  margin-bottom: var(--space-2);
}
.footer-col ul li a {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
}
.footer-col ul li a:hover { color: var(--color-accent); }
.footer-bottom {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
}

/* ===== Toast 提示 ===== */
.toast-container {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}
.toast {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-small);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 240px;
  max-width: 360px;
  pointer-events: auto;
  animation: slideUp 0.3s ease;
}
.toast.toast-success { border-left: 3px solid var(--color-success); }
.toast.toast-error   { border-left: 3px solid var(--color-error); }
.toast.toast-warning { border-left: 3px solid var(--color-warning); }
.toast.toast-info    { border-left: 3px solid var(--color-info); }

/* ===== 模态框 ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1500;
  padding: var(--space-4);
  animation: fadeIn 0.2s ease;
}
.modal-content {
  position: relative;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s ease;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}
.modal-header h3 {
  font-family: var(--font-nav);
  font-size: var(--fs-h3);
  color: var(--color-text-primary);
}
.modal-close {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.modal-close:hover { background: var(--color-bg-elevated); color: var(--color-text-primary); }
.modal-body { padding: var(--space-5); }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-5);
  border-top: 1px solid var(--color-border);
}

/* ===== 回到顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #0a0a0a;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
  z-index: 900;
  box-shadow: var(--shadow-md);
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover { background: var(--color-accent-hover); transform: translateY(-2px); }
@media (max-width: 600px) {
  .back-to-top { bottom: var(--space-4); right: var(--space-4); }
}

/* ===== 表格（后台） ===== */
.table-wrap {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow-x: auto;
}
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-small);
}
.data-table th {
  background: var(--color-bg-elevated);
  color: var(--color-text-muted);
  font-weight: 500;
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}
.data-table td {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-primary);
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--color-bg-elevated); }
.data-table .row-actions {
  display: flex;
  gap: var(--space-3);
  white-space: nowrap;
}
.data-table .row-actions button, .data-table .row-actions a {
  font-size: var(--fs-small);
  padding: 0;
  height: auto;
}
.data-table .row-actions .action-edit { color: var(--color-accent); }
.data-table .row-actions .action-delete { color: var(--color-error); }
.data-table .status-badge {
  display: inline-block;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--fs-caption);
}
.status-published, .status-active, .status-read { background: rgba(34,197,94,0.12); color: var(--color-success); }
.status-draft, .status-new { background: rgba(245,158,11,0.12); color: var(--color-warning); }
.status-archived, .status-banned, .status-hidden { background: rgba(239,68,68,0.12); color: var(--color-error); }
.status-replied { background: rgba(59,130,246,0.12); color: var(--color-info); }

/* ===== 安全区域适配 ===== */
@supports (padding: env(safe-area-inset-bottom)) {
  .site-footer { padding-bottom: calc(var(--space-5) + env(safe-area-inset-bottom)); }
  .back-to-top { bottom: calc(var(--space-6) + env(safe-area-inset-bottom)); }
}

/* ===== 隐藏类 ===== */
.hidden { display: none !important; }
.is-hidden { display: none !important; }
.invisible { visibility: hidden; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }
.text-accent { color: var(--color-accent); }
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-5 { margin-top: var(--space-5); }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-5 { margin-bottom: var(--space-5); }

/* ===== 共享：认证表单（登录/注册/后台登录） ===== */
/* 作者: zuiyun668 */
.auth-card {
  max-width: 440px;
  margin: 0 auto;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  box-shadow: var(--shadow-lg);
}
.auth-header {
  text-align: center;
  margin-bottom: var(--space-6);
}
.auth-header h1 {
  font-family: var(--font-nav);
  font-size: var(--fs-h2);
  color: var(--color-text-primary);
  margin: var(--space-3) 0 var(--space-2);
  letter-spacing: 2px;
}
.auth-header p {
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  margin: 0;
}
.auth-logo {
  width: 64px;
  height: 64px;
  margin: 0 auto;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-pressed));
  color: #0a0a0a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  box-shadow: var(--shadow-gold);
}
.auth-footer {
  margin-top: var(--space-5);
  text-align: center;
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}
.auth-footer a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.auth-footer a:hover { color: var(--color-accent-hover); text-decoration: underline; }
.auth-footer .footer-separator {
  margin: 0 var(--space-2);
  color: var(--color-text-disabled);
}

/* ===== 密码输入框（带显隐切换） ===== */
.password-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.password-wrap .input {
  padding-right: 44px;
  width: 100%;
}
.password-toggle {
  position: absolute;
  right: var(--space-2);
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.password-toggle:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-elevated);
}

/* ===== 表单：行内排列与复选框 ===== */
.form-row-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  user-select: none;
}
.checkbox-label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-accent);
  cursor: pointer;
}

/* ===== 模态框扩展：宽版（用于内容编辑器） ===== */
.modal-content.modal-wide {
  max-width: 760px;
}
.modal-overlay.show {
  /* 配合 JS 的 requestAnimationFrame 触发动画，本身已有 animation 故仅作钩子 */
  opacity: 1;
}
.radio-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.radio-row:hover {
  border-color: var(--color-border-accent);
  background: var(--color-accent-soft);
}
.radio-row input[type="radio"] {
  margin-top: 3px;
  accent-color: var(--color-accent);
  cursor: pointer;
}
.radio-row span {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  line-height: 1.5;
}
.radio-row span strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

/* ===== 状态徽章补全（deleted 状态） ===== */
.status-deleted { background: rgba(115,115,115,0.15); color: var(--color-gray-400); }

/* ===== 响应式：认证卡片移动端 ===== */
@media (max-width: 600px) {
  .auth-card { padding: var(--space-5); }
  .auth-header h1 { font-size: var(--fs-h3); }
  .auth-logo { width: 56px; height: 56px; font-size: 28px; }
  .modal-content.modal-wide { max-width: 100%; }
}

/* ============================================================
   Theme Engine：8 套主题配置
   通过 <html data-theme="slug"> 切换 CSS 变量实现视觉差异化
   ============================================================ */

/* ----- 1. 醉云烟酒：奢华、醇厚、深栗红 + 香槟金 + 衬线 ----- */
[data-theme="tobacco"] {
  --color-bg-primary:    #1a0e0e;
  --color-bg-secondary:  #221515;
  --color-bg-tertiary:   #2a1a1a;
  --color-bg-elevated:   #321f1f;
  --color-text-primary:  #f5e6d3;
  --color-text-secondary:rgba(245,230,211,0.72);
  --color-text-muted:    rgba(245,230,211,0.45);
  --color-accent:        #D4AF37;
  --color-accent-hover:  #e5c158;
  --color-accent-soft:   rgba(212,175,55,0.15);
  --color-card-border:   rgba(212,175,55,0.4);
  --color-border:        rgba(212,175,55,0.12);
  --color-border-strong: rgba(212,175,55,0.25);
  --font-display: 'Cormorant Garamond', 'Noto Serif SC', 'STSong', Georgia, serif;
  --card-style: glass-gold;
}
[data-theme="tobacco"] .item-card {
  background: linear-gradient(145deg, rgba(56,28,28,0.85), rgba(26,14,14,0.92));
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-card-border);
  box-shadow: 0 4px 20px rgba(0,0,0,0.5), inset 0 1px 0 rgba(212,175,55,0.15);
}
[data-theme="tobacco"] .item-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 30px rgba(212,175,55,0.25), inset 0 1px 0 rgba(212,175,55,0.3);
}

/* ----- 2. 工程造价：专业、严谨、深海蓝 + 冷灰 + 无衬线（亮色主题） ----- */
[data-theme="engineering"] {
  --color-bg-primary:    #f5f7fa;
  --color-bg-secondary:  #ffffff;
  --color-bg-tertiary:   #eef2f7;
  --color-bg-elevated:   #ffffff;
  --color-text-primary:  #1B3A5C;
  --color-text-secondary:rgba(27,58,92,0.72);
  --color-text-muted:    rgba(27,58,92,0.5);
  --color-accent:        #1B3A5C;
  --color-accent-hover:  #2a5278;
  --color-accent-soft:   rgba(27,58,92,0.08);
  --color-card-border:   #1B3A5C;
  --color-border:        rgba(27,58,92,0.12);
  --color-border-strong: rgba(27,58,92,0.25);
  --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --card-style: white-bar;
}
[data-theme="engineering"] body { background-color: var(--color-bg-primary); }
[data-theme="engineering"] .item-card {
  background: #ffffff;
  border: 1px solid rgba(27,58,92,0.15);
  border-left: 4px solid var(--color-card-border);
  box-shadow: 0 2px 8px rgba(27,58,92,0.08);
}
[data-theme="engineering"] .item-card:hover {
  border-left-color: var(--color-accent-hover);
  box-shadow: 0 6px 20px rgba(27,58,92,0.15);
}

/* ----- 3. 软件合集：科技、极客、电光紫 + 青色 + 等宽字体 ----- */
[data-theme="software"] {
  --color-bg-primary:    #0d0d1a;
  --color-bg-secondary:  #14142a;
  --color-bg-tertiary:   #1a1a35;
  --color-bg-elevated:   #22224a;
  --color-text-primary:  #e0e0ff;
  --color-text-secondary:rgba(224,224,255,0.72);
  --color-text-muted:    rgba(224,224,255,0.45);
  --color-accent:        #00D2FF;
  --color-accent-hover:  #4de2ff;
  --color-accent-soft:   rgba(0,210,255,0.12);
  --color-card-border:   rgba(123,47,190,0.5);
  --color-border:        rgba(0,210,255,0.12);
  --color-border-strong: rgba(0,210,255,0.3);
  --font-display: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  --card-style: neon-border;
}
[data-theme="software"] .item-card {
  background: linear-gradient(145deg, rgba(20,20,42,0.9), rgba(13,13,26,0.95));
  border: 1px solid var(--color-card-border);
  position: relative;
}
[data-theme="software"] .item-card::before {
  content: '';
  position: absolute; inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, #7B2FBE, #00D2FF);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0; transition: opacity 0.3s;
  pointer-events: none;
}
[data-theme="software"] .item-card:hover::before { opacity: 1; }
[data-theme="software"] .item-card:hover {
  box-shadow: 0 0 24px rgba(0,210,255,0.3);
}

/* ----- 4. 项目展示：视觉冲击、纯黑 + 亮橙 + 粗体展示 ----- */
[data-theme="projects"] {
  --color-bg-primary:    #0a0a0a;
  --color-bg-secondary:  #141414;
  --color-bg-tertiary:   #1a1a1a;
  --color-bg-elevated:   #222222;
  --color-text-primary:  #ffffff;
  --color-text-secondary:rgba(255,255,255,0.72);
  --color-text-muted:    rgba(255,255,255,0.45);
  --color-accent:        #FF6B35;
  --color-accent-hover:  #ff8456;
  --color-accent-soft:   rgba(255,107,53,0.15);
  --color-card-border:   rgba(255,107,53,0.3);
  --color-border:        rgba(255,255,255,0.08);
  --color-border-strong: rgba(255,107,53,0.4);
  --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --card-style: full-image;
}
[data-theme="projects"] .item-card {
  position: relative;
  background: #111;
  border: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
}
[data-theme="projects"] .item-card .item-cover {
  height: 280px;
  width: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
[data-theme="projects"] .item-card:hover .item-cover { transform: scale(1.05); }
[data-theme="projects"] .item-card .item-body {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--space-4);
  background: linear-gradient(to top, rgba(0,0,0,0.95), transparent);
  color: #fff;
}
[data-theme="projects"] .item-card .item-title { font-size: 1.25rem; font-weight: 700; }

/* ----- 5. 免费使用：亲和、开源、翠竹绿 + 暖白（亮色主题） ----- */
[data-theme="free"] {
  --color-bg-primary:    #fafdfd;
  --color-bg-secondary:  #ffffff;
  --color-bg-tertiary:   #f0f8f3;
  --color-bg-elevated:   #ffffff;
  --color-text-primary:  #1a3d2a;
  --color-text-secondary:rgba(26,61,42,0.72);
  --color-text-muted:    rgba(26,61,42,0.5);
  --color-accent:        #2D8B46;
  --color-accent-hover:  #38a55a;
  --color-accent-soft:   rgba(45,139,70,0.1);
  --color-card-border:   rgba(45,139,70,0.3);
  --color-border:        rgba(45,139,70,0.12);
  --color-border-strong: rgba(45,139,70,0.25);
  --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --card-style: rounded-free;
}
[data-theme="free"] body { background-color: var(--color-bg-primary); }
[data-theme="free"] .item-card {
  background: #ffffff;
  border: 1px solid var(--color-card-border);
  border-radius: 16px;
  position: relative;
  box-shadow: 0 2px 8px rgba(45,139,70,0.08);
}
[data-theme="free"] .item-card::after {
  content: '免费';
  position: absolute;
  top: 12px; right: 12px;
  background: var(--color-accent);
  color: #fff;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 9999px;
  font-weight: 600;
}
[data-theme="free"] .item-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(45,139,70,0.18);
}

/* ----- 6. 软件定制：高端服务、深邃紫 + 银灰 + 细长字体 ----- */
[data-theme="custom"] {
  --color-bg-primary:    #0f0a1f;
  --color-bg-secondary:  #16102b;
  --color-bg-tertiary:   #1d1538;
  --color-bg-elevated:   #251a47;
  --color-text-primary:  #e8e8f5;
  --color-text-secondary:rgba(232,232,245,0.72);
  --color-text-muted:    rgba(232,232,245,0.45);
  --color-accent:        #B0BEC5;
  --color-accent-hover:  #cfd8dc;
  --color-accent-soft:   rgba(176,190,197,0.12);
  --color-card-border:   rgba(45,27,105,0.6);
  --color-border:        rgba(176,190,197,0.12);
  --color-border-strong: rgba(176,190,197,0.3);
  --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --card-style: symmetric-timeline;
}
[data-theme="custom"] .item-card {
  background: linear-gradient(180deg, rgba(22,16,43,0.9), rgba(15,10,31,0.95));
  border: 1px solid var(--color-card-border);
  border-left: 3px solid var(--color-accent);
  position: relative;
}
[data-theme="custom"] .item-card::before {
  content: '';
  position: absolute;
  left: -8px; top: 50%;
  width: 12px; height: 12px;
  background: var(--color-accent);
  border-radius: 50%;
  transform: translateY(-50%);
  box-shadow: 0 0 12px var(--color-accent);
}
[data-theme="custom"] .item-card:hover {
  border-left-color: var(--color-accent-hover);
  transform: translateX(4px);
}

/* ----- 7. 直播业务：活力、娱乐、亮粉红 + 明黄 + 粗体动感 ----- */
[data-theme="live"] {
  --color-bg-primary:    #1a0010;
  --color-bg-secondary:  #26001a;
  --color-bg-tertiary:   #330025;
  --color-bg-elevated:   #400033;
  --color-text-primary:  #ffe6f2;
  --color-text-secondary:rgba(255,230,242,0.72);
  --color-text-muted:    rgba(255,230,242,0.45);
  --color-accent:        #FF007F;
  --color-accent-hover:  #ff3399;
  --color-accent-soft:   rgba(255,0,127,0.15);
  --color-card-border:   rgba(255,215,0,0.3);
  --color-border:        rgba(255,0,127,0.12);
  --color-border-strong: rgba(255,215,0,0.4);
  --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --card-style: liquid-glass;
}
[data-theme="live"] body {
  background:
    radial-gradient(circle at 20% 30%, rgba(255,0,127,0.15), transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(255,215,0,0.12), transparent 40%),
    var(--color-bg-primary);
}
[data-theme="live"] .item-card {
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
}
[data-theme="live"] .item-card::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255,215,0,0.1), transparent);
  animation: liveShine 4s linear infinite;
  pointer-events: none;
}
@keyframes liveShine {
  0% { transform: translateX(-100%) translateY(-100%); }
  100% { transform: translateX(100%) translateY(100%); }
}
[data-theme="live"] .item-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 8px 30px rgba(255,0,127,0.3);
}

/* ----- 8. 认知探索：神秘、烧脑、深空暗黑 + 青色荧光 + 细体极简 ----- */
[data-theme="cognition"] {
  --color-bg-primary:    #050608;
  --color-bg-secondary:  #0a0d12;
  --color-bg-tertiary:   #10141a;
  --color-bg-elevated:   #161b24;
  --color-text-primary:  #c8d3dc;
  --color-text-secondary:rgba(200,211,220,0.72);
  --color-text-muted:    rgba(200,211,220,0.45);
  --color-accent:        #45A29E;
  --color-accent-hover:  #66FCF1;
  --color-accent-soft:   rgba(69,162,158,0.12);
  --color-card-border:   rgba(69,162,158,0.3);
  --color-border:        rgba(69,162,158,0.1);
  --color-border-strong: rgba(102,252,241,0.4);
  --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --card-style: starfield;
}
[data-theme="cognition"] body {
  background:
    radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 60% 70%, rgba(102,252,241,0.5), transparent),
    radial-gradient(1.5px 1.5px at 80% 20%, rgba(255,255,255,0.3), transparent),
    radial-gradient(1px 1px at 30% 80%, rgba(69,162,158,0.5), transparent),
    radial-gradient(2px 2px at 90% 50%, rgba(255,255,255,0.3), transparent),
    var(--color-bg-primary);
  background-size: 200px 200px, 250px 250px, 300px 300px, 220px 220px, 280px 280px;
  background-repeat: repeat;
}
[data-theme="cognition"] .item-card {
  background: rgba(10,13,18,0.8);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-card-border);
  position: relative;
}
[data-theme="cognition"] .item-card .item-title {
  text-shadow: 0 0 8px rgba(102,252,241,0.4);
}
[data-theme="cognition"] .item-card:hover {
  border-color: var(--color-accent-hover);
  box-shadow: 0 0 20px rgba(102,252,241,0.2);
}

/* ============================================================
   Theme Engine：8 种布局模式
   通过 <html data-layout="xxx"> .items-grid 切换网格密度
   优先级高于默认 .items-grid，使用属性选择器叠加确保生效
   ============================================================ */

/* 1. 大图双列（醉云烟酒） */
[data-layout="grid-2"] .items-grid {
  grid-template-columns: repeat(2, 1fr) !important;
  gap: 2rem !important;
}
@media (max-width: 900px) { [data-layout="grid-2"] .items-grid { grid-template-columns: 1fr !important; } }

/* 2. 列表流（工程造价） */
[data-layout="list"] .items-grid {
  display: flex !important;
  flex-direction: column;
  gap: 1rem !important;
}
[data-layout="list"] .item-card {
  display: flex;
  flex-direction: row;
  align-items: stretch;
}
[data-layout="list"] .item-card .item-cover {
  width: 200px;
  height: auto;
  flex-shrink: 0;
}
[data-layout="list"] .item-card .item-body { flex: 1; }
@media (max-width: 700px) {
  [data-layout="list"] .item-card { flex-direction: column; }
  [data-layout="list"] .item-card .item-cover { width: 100%; height: 200px; }
}

/* 3. 密集三列（软件合集） */
[data-layout="grid-3"] .items-grid {
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 1rem !important;
}
@media (max-width: 1023px) { [data-layout="grid-3"] .items-grid { grid-template-columns: repeat(2, 1fr) !important; } }
@media (max-width: 600px)  { [data-layout="grid-3"] .items-grid { grid-template-columns: 1fr !important; } }

/* 4. 瀑布流（项目展示） */
[data-layout="masonry"] .items-grid {
  display: block !important;
  column-count: 3;
  column-gap: 1rem !important;
}
[data-layout="masonry"] .item-card {
  display: inline-block;
  width: 100%;
  margin-bottom: 1rem;
  break-inside: avoid;
}
@media (max-width: 1023px) { [data-layout="masonry"] .items-grid { column-count: 2; } }
@media (max-width: 600px)  { [data-layout="masonry"] .items-grid { column-count: 1; } }

/* 5. 简约四列（免费使用） */
[data-layout="grid-4"] .items-grid {
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 1rem !important;
}
@media (max-width: 1023px) { [data-layout="grid-4"] .items-grid { grid-template-columns: repeat(2, 1fr) !important; } }
@media (max-width: 600px)  { [data-layout="grid-4"] .items-grid { grid-template-columns: 1fr !important; } }

/* 6. 流程时间线（软件定制） */
[data-layout="timeline"] .items-grid {
  display: flex !important;
  flex-direction: column;
  gap: 2rem !important;
  position: relative;
  padding-left: 2rem;
}
[data-layout="timeline"] .items-grid::before {
  content: '';
  position: absolute;
  left: 8px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
}

/* 7. 大图轮播 + 列表混合（直播业务） */
[data-layout="carousel"] .items-grid {
  display: grid !important;
  grid-template-columns: 2fr 1fr;
  gap: 2rem !important;
}
[data-layout="carousel"] .items-grid > .item-card:first-child {
  grid-row: span 3;
}
@media (max-width: 900px) {
  [data-layout="carousel"] .items-grid { grid-template-columns: 1fr !important; }
  [data-layout="carousel"] .items-grid > .item-card:first-child { grid-row: auto; }
}

/* 8. 单列深度长文（认知探索） */
[data-layout="single"] .items-grid {
  display: flex !important;
  flex-direction: column;
  max-width: 800px;
  margin: 0 auto;
  gap: 1.5rem !important;
}
[data-layout="single"] .item-card .item-summary {
  font-size: 1rem;
  line-height: 1.8;
}

/* ============================================================
   导航栏下拉菜单（一级 hover/click 展开二级）
   ============================================================ */
.nav-item.has-dropdown { position: relative; }
.nav-item.has-dropdown > .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.nav-item.has-dropdown > .nav-link::after {
  content: '▾';
  font-size: 0.7em;
  opacity: 0.7;
  transition: transform 0.2s;
}
.nav-item.has-dropdown:hover > .nav-link::after { transform: rotate(180deg); }

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
  z-index: 100;
}
.nav-item.has-dropdown:hover .nav-dropdown,
.nav-item.has-dropdown:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-dropdown a {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  border-left: 2px solid transparent;
}
.nav-dropdown a:hover {
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-left-color: var(--color-accent);
}

/* 移动端：下拉改为手风琴展开 */
@media (max-width: 900px) {
  .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: var(--space-4);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
  }
  .nav-item.has-dropdown.expanded .nav-dropdown { max-height: 400px; }
  .nav-item.has-dropdown > .nav-link::after { transform: rotate(0); }
  .nav-item.has-dropdown.expanded > .nav-link::after { transform: rotate(180deg); }
}

/* ============================================================
   首页 8 板块入口卡片：主题色预览
   ============================================================ */
.section-entry {
  position: relative;
  display: block;
  padding: var(--space-5);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-base);
  overflow: hidden;
}
.section-entry::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--section-color, var(--color-accent));
}
.section-entry:hover {
  transform: translateY(-4px);
  border-color: var(--section-color, var(--color-accent));
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.section-entry .section-icon {
  font-size: 1.75rem;
  color: var(--section-color, var(--color-accent));
  margin-bottom: var(--space-3);
}
.section-entry .section-name {
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.section-entry .section-desc {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  line-height: 1.5;
}
.section-entry .section-sub-count {
  display: inline-block;
  margin-top: var(--space-3);
  padding: 2px 8px;
  font-size: var(--fs-caption);
  background: var(--color-accent-soft);
  color: var(--section-color, var(--color-accent));
  border-radius: var(--radius-full);
}

/* ============================================================
   二级子分类切换条（板块页顶部）
   ============================================================ */
.subcat-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}
.subcat-tab {
  display: inline-block;
  padding: 6px 14px;
  font-size: var(--fs-small);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
}
.subcat-tab:hover {
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.subcat-tab.active {
  background: var(--color-accent);
  color: var(--color-bg-primary);
  border-color: var(--color-accent);
  font-weight: 600;
}
[data-theme="engineering"] .subcat-tab.active,
[data-theme="free"] .subcat-tab.active { color: #fff; }
.subcat-tab.all-link {
  background: transparent;
  border-style: dashed;
}

/* ============================================================
   V2 首页 - 个人品牌风格
   ============================================================ */

/* ---- 通用 section v2 ---- */
.section-v2 {
  padding: clamp(60px, 10vw, 120px) 0;
}
.section-header-v2 {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: clamp(32px, 5vw, 56px);
  gap: var(--space-6);
  flex-wrap: wrap;
}
.section-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
  text-transform: uppercase;
}
.section-title-v2 {
  font-family: var(--font-serif);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.1;
  margin: 0 0 var(--space-3) 0;
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-subtitle-v2 {
  font-size: var(--fs-body);
  color: var(--color-text-muted);
  margin: 0;
  max-width: 500px;
}
.section-more-v2 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  transition: gap var(--transition-fast);
  flex-shrink: 0;
}
.section-more-v2:hover {
  gap: 12px;
}
.container-wide {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--container-gutter);
}

/* ---- Hero v2 ---- */
.hero-v2 {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: calc(var(--nav-height) + var(--space-6));
  padding-bottom: var(--space-10);
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
  filter: saturate(0.8) brightness(0.6);
  transform: scale(1.05);
  animation: heroBgZoom 20s ease-in-out infinite alternate;
}
@keyframes heroBgZoom {
  0% { transform: scale(1.05); }
  100% { transform: scale(1.15); }
}
.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 30%, rgba(212,175,55,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(139,92,246,0.12) 0%, transparent 50%),
    linear-gradient(180deg, rgba(10,10,10,0.4) 0%, rgba(10,10,10,0.85) 100%);
}
.hero-bg-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-particle {
  position: absolute;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.4;
  animation: particleFloat 15s infinite ease-in-out;
}
@keyframes particleFloat {
  0%, 100% { transform: translateY(0) translateX(0); opacity: 0.2; }
  50% { transform: translateY(-30px) translateX(10px); opacity: 0.6; }
}

.hero-content-v2 {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--container-gutter);
  width: 100%;
}
.hero-left {
  animation: heroFadeInUp 0.8s ease-out;
}
@keyframes heroFadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  background: rgba(212,175,55,0.1);
  border: 1px solid rgba(212,175,55,0.3);
  border-radius: var(--radius-full);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
}
.hero-tagline-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: dotPulse 2s infinite;
}
@keyframes dotPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

/* 1:8 比例视觉 */
.hero-ratio {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--font-display);
  font-weight: 800;
}
.hero-ratio-num {
  font-size: 1.1rem;
  line-height: 1;
  background: linear-gradient(180deg, var(--color-accent), #b8941f);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
.hero-ratio-colon {
  font-size: 1rem;
  color: var(--color-text-muted);
  animation: colonBlink 3s infinite;
  padding: 0 1px;
}
@keyframes colonBlink {
  0%, 70%, 100% { opacity: 0.4; }
  35% { opacity: 1; }
}
.hero-tagline:hover .hero-ratio-num:first-child { transform: translateY(-2px) scale(1.1); }
.hero-tagline:hover .hero-ratio-num:last-child { transform: translateY(2px) scale(1.1); }
.hero-title-v2 {
  font-family: var(--font-serif);
  font-size: clamp(64px, 12vw, 140px);
  font-weight: 900;
  line-height: 0.95;
  margin: 0 0 var(--space-5) 0;
  letter-spacing: -0.02em;
}
.hero-title-line {
  display: inline-block;
  background: linear-gradient(135deg, #d4af37 0%, #f5e6a0 50%, #d4af37 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 80px rgba(212,175,55,0.3);
  animation: titleGlow 3s ease-in-out infinite alternate;
}
.hero-title-line + .hero-title-line {
  margin-left: 0.05em;
}
@keyframes titleGlow {
  from { filter: drop-shadow(0 0 20px rgba(212,175,55,0.2)); }
  to { filter: drop-shadow(0 0 40px rgba(212,175,55,0.4)); }
}
.hero-subtitle-v2 {
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-6) 0;
  max-width: 560px;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}
.hero-tag:hover {
  background: rgba(212,175,55,0.1);
  border-color: rgba(212,175,55,0.3);
  color: var(--color-accent);
  transform: translateY(-2px);
}
.hero-tag i {
  font-size: 0.9em;
}
.hero-actions-v2 {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}
.btn-lg {
  padding: 14px 28px;
  font-size: var(--fs-body);
}
.btn-glow {
  background: linear-gradient(135deg, var(--color-accent) 0%, #f0c65b 100%);
  color: #1a1a1a;
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 700;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 20px rgba(212,175,55,0.3);
}
.btn-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(212,175,55,0.4);
}
.btn-ghost-v2 {
  background: rgba(255,255,255,0.05);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}
.btn-ghost-v2:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.btn-link-v2 {
  background: transparent;
  color: var(--color-text-secondary);
  border: none;
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}
.btn-link-v2:hover {
  color: var(--color-accent);
  gap: 10px;
}

/* Hero right - avatar + stats */
.hero-right {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-8);
  animation: heroFadeInUp 0.8s ease-out 0.2s both;
}
.hero-avatar-wrap {
  position: relative;
  width: clamp(200px, 28vw, 320px);
  height: clamp(200px, 28vw, 320px);
}
.hero-avatar-ring {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid transparent;
  border-top-color: var(--color-accent);
  border-right-color: rgba(212,175,55,0.3);
  animation: ringSpin 8s linear infinite;
}
.hero-avatar-ring-2 {
  inset: -20px;
  border-top-color: transparent;
  border-right-color: transparent;
  border-bottom-color: rgba(139,92,246,0.5);
  border-left-color: rgba(139,92,246,0.2);
  animation-duration: 12s;
  animation-direction: reverse;
}
@keyframes ringSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.hero-avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  position: relative;
  z-index: 1;
  border: 4px solid rgba(212,175,55,0.3);
}
.hero-avatar-glow {
  position: absolute;
  inset: -30%;
  background: radial-gradient(circle, rgba(212,175,55,0.2) 0%, transparent 60%);
  z-index: 0;
  animation: glowPulse 4s ease-in-out infinite;
}
@keyframes glowPulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  width: 100%;
  max-width: 400px;
}
.hero-stat {
  text-align: center;
  padding: var(--space-4) var(--space-2);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}
.hero-stat:hover {
  border-color: rgba(212,175,55,0.3);
  transform: translateY(-3px);
}
.hero-stat-num {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 4px;
}
.hero-stat-label {
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
}
.hero-scroll-hint-v2 {
  position: absolute;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  animation: scrollBounce 2s ease-in-out infinite;
  z-index: 2;
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

/* ---- Bento Grid ---- */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(3, minmax(200px, 1fr));
  gap: var(--space-4);
  min-height: 600px;
}
.bento-tile.size-2x2 { grid-column: span 2; grid-row: span 2; }
.bento-tile.size-1x2 { grid-column: span 1; grid-row: span 2; }
.bento-tile.size-2x1 { grid-column: span 2; grid-row: span 1; }
.bento-tile.size-1x1 { grid-column: span 1; grid-row: span 1; }
.bento-tile {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}
.bento-tile:hover {
  transform: translateY(-4px);
  border-color: var(--section-color, var(--color-accent));
  box-shadow: 0 20px 40px rgba(0,0,0,0.3), 0 0 0 1px var(--section-color, var(--color-accent));
}
.bento-tile-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform var(--transition-slow);
  z-index: 0;
}
.bento-tile-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.5;
  background:
    radial-gradient(ellipse at top left, var(--section-color, var(--color-accent)) 0%, transparent 50%),
    radial-gradient(ellipse at bottom right, rgba(139,92,246,0.3) 0%, transparent 50%);
  mix-blend-mode: overlay;
}
.bento-tile-bg::after {
  content: '';
  position: absolute;
  right: -5%;
  bottom: -10%;
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: clamp(100px, 12vw, 200px);
  color: rgba(255,255,255,0.08);
  z-index: 2;
  line-height: 1;
  transition: all var(--transition-slow);
}
.bento-tile:hover .bento-tile-bg::after {
  color: rgba(255,255,255,0.15);
  transform: scale(1.1) rotate(-5deg);
}
.bento-bg-tobacco {
  background:
    radial-gradient(ellipse at 20% 20%, rgba(212,55,55,0.5) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(139,26,26,0.7) 0%, transparent 60%),
    linear-gradient(135deg, #2d0a0a 0%, #1a0505 100%);
}
.bento-bg-tobacco::after { content: '\f000'; transform: rotate(-15deg); }

.bento-bg-engineering {
  background:
    radial-gradient(ellipse at 30% 30%, rgba(27,58,92,0.7) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 70%, rgba(59,130,246,0.3) 0%, transparent 50%),
    linear-gradient(135deg, #0a1628 0%, #050d1a 100%);
}
.bento-bg-engineering::after { content: '\f1ad'; transform: rotate(10deg); }

.bento-bg-software {
  background:
    radial-gradient(ellipse at 20% 80%, rgba(123,47,190,0.6) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(59,130,246,0.3) 0%, transparent 50%),
    linear-gradient(135deg, #1a0a2e 0%, #0d0520 100%);
}
.bento-bg-software::after { content: '\f121'; transform: rotate(-8deg); }

.bento-bg-projects {
  background:
    radial-gradient(ellipse at 80% 20%, rgba(255,107,53,0.5) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 80%, rgba(249,115,22,0.4) 0%, transparent 50%),
    linear-gradient(135deg, #1f1208 0%, #120a04 100%);
}
.bento-bg-projects::after { content: '\f07b'; transform: rotate(5deg); }

.bento-bg-free {
  background:
    radial-gradient(ellipse at 20% 20%, rgba(45,139,70,0.5) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(16,185,129,0.3) 0%, transparent 50%),
    linear-gradient(135deg, #0a1f12 0%, #051009 100%);
}
.bento-bg-free::after { content: '\f06b'; transform: rotate(-12deg); }

.bento-bg-custom {
  background:
    radial-gradient(ellipse at 50% 50%, rgba(99,102,241,0.4) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 80%, rgba(139,92,246,0.4) 0%, transparent 50%),
    linear-gradient(135deg, #15102d 0%, #0b071a 100%);
}
.bento-bg-custom::after { content: '\f085'; transform: rotate(20deg); }

.bento-bg-live {
  background:
    radial-gradient(ellipse at 30% 70%, rgba(255,0,127,0.5) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 30%, rgba(236,72,153,0.3) 0%, transparent 50%),
    linear-gradient(135deg, #1f0a15 0%, #10050b 100%);
}
.bento-bg-live::after { content: '\f03d'; transform: rotate(-5deg); }

.bento-bg-cognition {
  background:
    radial-gradient(ellipse at 50% 30%, rgba(69,162,158,0.4) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 80%, rgba(14,165,233,0.3) 0%, transparent 50%),
    linear-gradient(135deg, #0a1f1e 0%, #050f0f 100%);
}
.bento-bg-cognition::after { content: '\f5dc'; transform: rotate(15deg); }

/* ---- Items Grid v2 ---- */
.items-grid-v2 {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
}
.item-card-v2 {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}
.item-card-v2:hover {
  transform: translateY(-4px);
  border-color: var(--section-color, var(--color-accent));
  box-shadow: 0 12px 30px rgba(0,0,0,0.2);
}
.item-card-cover {
  aspect-ratio: 4/3;
  background: var(--color-bg-tertiary);
  overflow: hidden;
  position: relative;
}
.item-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}
.item-card-v2:hover .item-card-cover img {
  transform: scale(1.05);
}
.item-card-category {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(10px);
  color: #fff;
  font-size: var(--fs-caption);
  font-weight: 600;
  border-radius: var(--radius-full);
}
.item-card-body {
  padding: var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.item-card-title {
  font-size: var(--fs-h5);
  font-weight: 700;
  margin: 0 0 var(--space-2) 0;
  line-height: 1.4;
  color: var(--color-text-primary);
}
.item-card-excerpt {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0 0 var(--space-4) 0;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.item-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
}

/* ---- About Section ---- */
.about-section-v2 {
  background: linear-gradient(180deg, transparent 0%, rgba(212,175,55,0.03) 50%, transparent 100%);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}
.about-text-v2 {
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-4) 0;
}
.about-text-v2 strong {
  color: var(--color-accent);
  font-weight: 700;
}
.about-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

/* Skills cloud */
.skills-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  justify-content: center;
}
.skill-tag {
  padding: 8px 18px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  cursor: default;
}
.skill-tag:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}
.skill-tag-md {
  font-size: var(--fs-body);
  padding: 10px 22px;
}
.skill-tag-lg {
  font-size: var(--fs-h6);
  font-weight: 600;
  padding: 12px 26px;
  background: linear-gradient(135deg, rgba(212,175,55,0.1) 0%, rgba(139,92,246,0.1) 100%);
  border-color: rgba(212,175,55,0.3);
  color: var(--color-text-primary);
}
.skill-tag-xl {
  font-size: var(--fs-h5);
  font-weight: 700;
  padding: 14px 30px;
  background: linear-gradient(135deg, rgba(212,175,55,0.2) 0%, rgba(212,175,55,0.1) 100%);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}
.stat-card {
  text-align: center;
  padding: var(--space-5) var(--space-3);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}
.stat-card:hover {
  border-color: rgba(212,175,55,0.3);
  transform: translateY(-3px);
}
.stat-num {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.5vw, 32px);
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: var(--fs-caption);
  color: var(--color-text-muted);
}

/* ---- CTA Banner v2 ---- */
.cta-banner-v2 {
  margin-bottom: var(--space-10);
  padding: clamp(32px, 5vw, 56px);
  background:
    radial-gradient(ellipse at top left, rgba(212,175,55,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at bottom right, rgba(139,92,246,0.1) 0%, transparent 50%),
    linear-gradient(135deg, rgba(212,175,55,0.08) 0%, rgba(139,92,246,0.05) 100%);
  border: 1px solid rgba(212,175,55,0.2);
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  flex-wrap: wrap;
}
.cta-content h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 900;
  margin: 0 0 var(--space-2) 0;
  color: var(--color-text-primary);
}
.cta-content p {
  font-size: var(--fs-body);
  color: var(--color-text-muted);
  margin: 0;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
  }
  .bento-tile.size-2x2 { grid-column: span 2; grid-row: span 1; }
  .bento-tile.size-1x2 { grid-column: span 1; grid-row: span 1; }
  .bento-tile.size-2x1 { grid-column: span 2; }
}

@media (max-width: 768px) {
  .hero-content-v2 {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-left { order: 2; }
  .hero-right { order: 1; }
  .hero-avatar-wrap {
    width: 180px;
    height: 180px;
  }
  .hero-tags {
    justify-content: center;
  }
  .hero-actions-v2 {
    justify-content: center;
  }
  .hero-stats {
    max-width: 320px;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .cta-banner-v2 {
    text-align: center;
    justify-content: center;
  }
  .section-header-v2 {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .bento-grid {
    grid-template-columns: 1fr;
  }
  .bento-tile.size-2x1,
  .bento-tile.size-2x2 {
    grid-column: span 1;
  }
  .items-grid-v2 {
    grid-template-columns: 1fr;
  }
  .hero-title-v2 {
    font-size: 64px;
  }
}