/**
 * 潮匠总站 (www.itmuster.cn) 完整样式表
 * 整合设计系统 Tokens、Base 与总站专属高阶样式，完全自包含
 */

/* ==========================================================================
   1. 设计系统 Tokens (方向 A：深邃星海 · 流动银蓝)
   ========================================================================== */
:root {
  --color-bg-base: #05070f;
  --color-bg-surface: #090d1a;
  --color-bg-card: rgba(13, 19, 35, 0.68);
  --color-bg-card-hover: rgba(18, 26, 48, 0.88);
  --color-bg-glass: rgba(13, 19, 35, 0.45);

  --color-text-primary: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-text-subtle: #334155;

  --color-brand-moon: #f0f9ff;
  --color-brand-ice: #bae6fd;
  --color-brand-cyan: #38bdf8;
  --color-brand-blue: #2563eb;
  --color-brand-deep: #1e3a8a;

  --gradient-silver-text: linear-gradient(135deg, #ffffff 0%, #e0f2fe 45%, #93c5fd 100%);
  --gradient-brand: linear-gradient(135deg, #38bdf8 0%, #2563eb 100%);
  --gradient-card-shine: radial-gradient(500px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(56, 189, 248, 0.09), transparent 40%);

  --border-subtle: 1px solid rgba(255, 255, 255, 0.06);
  --border-card: 1px solid rgba(255, 255, 255, 0.08);

  --glass-blur: blur(18px);

  --shadow-md: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.7);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-card: 20px;
  --radius-pill: 999px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --container-max-width: 1280px;
}

/* ==========================================================================
   2. 基础重置与规范
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg-base);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* 统一滚动条 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: rgba(56, 189, 248, 0.2);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(56, 189, 248, 0.4);
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 背景纹理与深空流光 */
.bg-decor {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background-color: var(--color-bg-base);
  background-image: 
    radial-gradient(ellipse 90% 55% at 50% -15%, rgba(37, 99, 235, 0.2), transparent 70%),
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 64px 64px, 64px 64px;
}

/* ==========================================================================
   3. Header 导航栏
   ========================================================================== */
.site-header {
  position: sticky;
  top: 24px;
  z-index: 100;
  margin: 24px auto 0;
  padding: 12px 26px;
  background: var(--color-bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--border-card);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.3s ease;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo-wrap {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 2px 8px rgba(56, 189, 248, 0.3));
}

.brand-logo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.2px;
  color: var(--color-text-primary);
}

.brand-divider {
  color: var(--color-text-subtle);
  font-size: 12px;
  margin: 0 2px;
}

.brand-tag {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-brand-ice);
  letter-spacing: 0.5px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  color: var(--color-text-secondary);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--color-brand-moon);
}

.system-status {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11.5px;
  font-weight: 500;
  color: #a7f3d0;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
}

/* ==========================================================================
   4. Hero 首屏
   ========================================================================== */
.hero {
  position: relative;
  padding: 110px 0 80px;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: 12.5px;
  font-weight: 500;
  background: rgba(56, 189, 248, 0.06);
  color: var(--color-brand-ice);
  border: 1px solid rgba(56, 189, 248, 0.18);
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}

.hero-title {
  font-size: 64px;
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1.12;
  margin-bottom: 22px;
  background: var(--gradient-silver-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 18.5px;
  color: var(--color-text-secondary);
  max-width: 680px;
  margin: 0 auto 38px;
  line-height: 1.75;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.btn-glow {
  position: relative;
  padding: 13px 30px;
  border-radius: var(--radius-pill);
  font-size: 14.5px;
  font-weight: 600;
  color: #ffffff;
  background: var(--gradient-brand);
  border: none;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37, 99, 235, 0.6);
}

.btn-glass {
  padding: 13px 28px;
  border-radius: var(--radius-pill);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--color-brand-moon);
  background: var(--color-bg-card);
  border: var(--border-card);
  text-decoration: none;
  cursor: pointer;
  backdrop-filter: var(--glass-blur);
  transition: all 0.25s ease;
}

.btn-glass:hover {
  border-color: rgba(56, 189, 248, 0.4);
  background: var(--color-bg-card-hover);
}

.craft-statusbar {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  background: rgba(13, 19, 35, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.05);
  backdrop-filter: var(--glass-blur);
  font-size: 12.5px;
  color: var(--color-text-muted);
}

.bar-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.bar-item strong {
  color: var(--color-brand-ice);
  font-weight: 600;
  font-family: var(--font-mono);
}

.bar-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

/* ==========================================================================
   5. 产品矩阵展厅 (3x3 均匀九宫格)
   ========================================================================== */
.section-meta {
  margin: 90px 0 36px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.section-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--color-brand-ice);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.section-h2 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.8px;
  color: var(--color-text-primary);
}

.section-hint {
  font-size: 14px;
  color: var(--color-text-muted);
}

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.matrix-card {
  position: relative;
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-card);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}

.matrix-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    500px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(56, 189, 248, 0.09),
    transparent 40%
  );
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: 1;
}

.matrix-card:hover {
  transform: translateY(-5px);
  border-color: rgba(56, 189, 248, 0.35);
  box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.7), 0 0 24px -4px rgba(37, 99, 235, 0.2);
}

.matrix-card:hover::before {
  opacity: 1;
}

.card-central-hub {
  border: 1px solid rgba(56, 189, 248, 0.3);
  background: linear-gradient(160deg, rgba(18, 28, 54, 0.85) 0%, rgba(10, 15, 29, 0.9) 100%);
  box-shadow: 0 10px 30px -10px rgba(37, 99, 235, 0.25);
}

.card-central-hub:hover {
  border-color: rgba(56, 189, 248, 0.6);
  box-shadow: 0 16px 40px -8px rgba(37, 99, 235, 0.4);
}

.card-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 22px;
  position: relative;
  z-index: 2;
}

.card-icon-box {
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  filter: drop-shadow(0 4px 12px rgba(56, 189, 248, 0.25));
  transition: transform 0.3s ease, filter 0.3s ease;
}

.matrix-card:hover .card-icon-box {
  transform: scale(1.08);
  filter: drop-shadow(0 6px 16px rgba(56, 189, 248, 0.45));
}

.card-icon-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.card-badge {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.5px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.badge-hub {
  background: rgba(56, 189, 248, 0.15);
  color: var(--color-brand-cyan);
  border: 1px solid rgba(56, 189, 248, 0.35);
}

.badge-live {
  background: rgba(16, 185, 129, 0.1);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.28);
}

.badge-beta {
  background: rgba(245, 158, 11, 0.1);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.card-content {
  position: relative;
  z-index: 2;
  flex-grow: 1;
}

.card-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.card-slogan {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-brand-ice);
  margin-bottom: 12px;
  letter-spacing: 0.3px;
}

.card-desc {
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.card-action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  position: relative;
  z-index: 2;
}

.card-domain {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
}

.card-arrow-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-brand-cyan);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.2s ease;
}

.card-arrow-link:hover {
  color: #ffffff;
  transform: translateX(4px);
}

/* ==========================================================================
   6. 自研哲学与统一页脚 (严格遵守红线)
   ========================================================================== */
.philosophy-wrap {
  margin-top: 110px;
  padding: 50px 42px;
  background: var(--color-bg-card);
  border: var(--border-card);
  border-radius: var(--radius-card);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  margin-top: 36px;
}

.phil-box {
  position: relative;
  padding-left: 20px;
  border-left: 1px solid rgba(56, 189, 248, 0.25);
}

.phil-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 10px;
}

.phil-text {
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.site-footer {
  margin-top: 100px;
  padding: 36px 0 48px;
  border-top: var(--border-subtle);
  color: var(--color-text-muted);
  font-size: 13px;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.footer-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--color-brand-cyan);
}

/* ==========================================================================
   7. 响应式适配
   ========================================================================== */
@media (max-width: 1024px) {
  .matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-title {
    font-size: 48px;
  }
}

@media (max-width: 720px) {
  .matrix-grid {
    grid-template-columns: 1fr;
  }
  .philosophy-grid {
    grid-template-columns: 1fr;
  }
  .site-header {
    flex-direction: column;
    gap: 14px;
    border-radius: var(--radius-card);
  }
  .hero-title {
    font-size: 36px;
  }
  .hero-actions {
    flex-direction: column;
  }
  .craft-statusbar {
    flex-direction: column;
    gap: 8px;
  }
  .bar-sep {
    display: none;
  }
}