/* ==========================================================================
   DREAMVFIA Brand Portal 2026 Master Stylesheet (brand-page-2026.css)
   Conforms to: VI Standard (2026-09-21) & Cyber-Skeuomorphic 3.0 Tokens
   Colorway: Obsidian Void (#06080C), Cyber Vermilion (#FF1F3D), Laser Cyan (#00F5FF)
   Discipline: 0-Emoji, High-Craft HUD Micro-Sculpting, Fluid Springs
   ========================================================================== */

:root {
  /* Surface & Base Color Tokens */
  --bp-void: #06080c;
  --bp-chassis: #0a0e16;
  --bp-plate: #101622;
  --bp-card: #141c2b;
  --bp-card-hover: #192438;
  --bp-border: rgba(255, 255, 255, 0.08);
  --bp-border-subtle: rgba(255, 255, 255, 0.04);
  --bp-border-highlight: rgba(255, 255, 255, 0.16);

  /* Master Brand Colors */
  --bp-vermilion: #ff1f3d;
  --bp-vermilion-deep: #e52e2e;
  --bp-vermilion-glow: rgba(255, 31, 61, 0.35);
  --bp-vermilion-soft: #ff8a8f;

  /* Telemetry & Accent Colors */
  --bp-cyan: #00f5ff;
  --bp-cyan-glow: rgba(0, 245, 255, 0.35);
  --bp-frost: #f1f5f9;
  --bp-muted: #94a3b8;
  --bp-dim: #64748b;
  --bp-dark-dim: #334155;

  /* Kinetic Physics Springs */
  --bp-spring-snappy: cubic-bezier(0.34, 1.56, 0.64, 1);
  --bp-spring-smooth: cubic-bezier(0.16, 1, 0.3, 1);
  --bp-spring-tactile: cubic-bezier(0.2, 0.8, 0.2, 1);

  /* Structural Geometry */
  --bp-max-w: 1240px;
  --bp-radius-sm: 4px;
  --bp-radius-md: 8px;
  --bp-radius-lg: 12px;
}

/* Base resets for brand page */
body {
  background-color: var(--bp-void) !important;
  color: var(--bp-frost);
  font-family: var(--font-body, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);
  overflow-x: hidden;
}

/* Background Cyber Grid Ambience */
.bp-ambient-grid {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center top;
  opacity: 0.8;
}

.bp-ambient-radar {
  position: fixed;
  top: -20vh;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(255, 31, 61, 0.07) 0%, rgba(255, 31, 61, 0.02) 45%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.bp-container {
  position: relative;
  z-index: 1;
  max-width: var(--bp-max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* Top Telemetry Header Bar */
.bp-telemetry-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(10, 14, 22, 0.75);
  backdrop-filter: blur(12px);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-sm);
  margin-top: 18px;
  font-family: var(--font-hud, monospace);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--bp-muted);
}

.bp-telemetry-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.bp-telemetry-dot {
  width: 7px;
  height: 7px;
  background: var(--bp-vermilion);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--bp-vermilion);
  animation: bp-pulse 2s infinite ease-in-out;
}

@keyframes bp-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.85); }
}

.bp-telemetry-dot.cyan {
  background: var(--bp-cyan);
  box-shadow: 0 0 8px var(--bp-cyan);
}

/* ==========================================================================
   Section 1: Hero Hologram Rig & Interactive Texture Switcher
   ========================================================================== */
.bp-hero-section {
  padding: 48px 0 64px;
}

.bp-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.bp-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-hud, monospace);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--bp-vermilion);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.bp-hero-kicker::before {
  content: "◆";
  font-size: 0.65rem;
}

.bp-hero-title {
  font-family: var(--font-cn-title, "Shizuka-Glitch-Mincho", serif);
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 16px;
  color: #ffffff;
  letter-spacing: 0.02em;
}

.bp-hero-title-en {
  display: block;
  font-family: var(--font-display, "Venus Rising", sans-serif);
  font-size: clamp(1rem, 2.2vw, 1.4rem);
  color: var(--bp-vermilion);
  font-weight: 400;
  letter-spacing: 0.08em;
  margin-top: 8px;
}

.bp-hero-lead {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--bp-muted);
  max-width: 62ch;
  margin-bottom: 28px;
}

.bp-hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.bp-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--bp-radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s var(--bp-spring-snappy);
  border: 1px solid transparent;
  box-sizing: border-box;
}

.bp-btn-primary {
  background: var(--bp-vermilion);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(255, 31, 61, 0.35);
}

.bp-btn-primary:hover {
  background: #ff3b54;
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(255, 31, 61, 0.55);
}

.bp-btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--bp-frost);
  border-color: var(--bp-border);
}

.bp-btn-ghost:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: var(--bp-border-highlight);
  transform: translateY(-2px);
}

/* Master Hologram Rig Display Box */
.bp-hologram-rig {
  position: relative;
  background: linear-gradient(145deg, rgba(16, 22, 34, 0.9) 0%, rgba(10, 14, 22, 0.95) 100%);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-md);
  padding: 24px;
  box-shadow: 
    0 16px 40px rgba(0, 0, 0, 0.7),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

/* Corner HUD Brackets */
.bp-bracket {
  position: absolute;
  width: 12px;
  height: 12px;
  border-color: var(--bp-vermilion);
  border-style: solid;
  pointer-events: none;
}
.bp-bracket-tl { top: 8px; left: 8px; border-width: 2px 0 0 2px; }
.bp-bracket-tr { top: 8px; right: 8px; border-width: 2px 2px 0 0; }
.bp-bracket-bl { bottom: 8px; left: 8px; border-width: 0 0 2px 2px; }
.bp-bracket-br { bottom: 8px; right: 8px; border-width: 0 2px 2px 0; }

.bp-holo-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, rgba(255, 31, 61, 0.09) 0%, rgba(10, 14, 22, 0.3) 60%, transparent 80%);
  border-radius: var(--bp-radius-sm);
  border: 1px dashed rgba(255, 255, 255, 0.08);
  overflow: hidden;
  margin-bottom: 20px;
}

.bp-holo-scanbar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--bp-vermilion), transparent);
  box-shadow: 0 0 12px var(--bp-vermilion);
  opacity: 0.6;
  animation: bp-scan-sweep 4s infinite linear;
  pointer-events: none;
  z-index: 2;
}

@keyframes bp-scan-sweep {
  0% { transform: translateY(0); opacity: 0; }
  10% { opacity: 0.8; }
  90% { opacity: 0.8; }
  100% { transform: translateY(380px); opacity: 0; }
}

.bp-holo-img {
  max-width: 78%;
  max-height: 78%;
  object-fit: contain;
  filter: drop-shadow(0 12px 30px rgba(0, 0, 0, 0.8));
  transition: all 0.4s var(--bp-spring-snappy);
  z-index: 1;
}

.bp-holo-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-hud, monospace);
  font-size: 0.75rem;
  color: var(--bp-dim);
  border-top: 1px solid var(--bp-border-subtle);
  padding-top: 12px;
  margin-bottom: 16px;
}

.bp-holo-meta-val {
  color: var(--bp-cyan);
}

/* Texture Switcher Tabs */
.bp-texture-switcher {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.bp-tex-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-sm);
  color: var(--bp-muted);
  font-size: 0.78rem;
  font-family: var(--font-hud, monospace);
  cursor: pointer;
  transition: all 0.2s var(--bp-spring-snappy);
}

.bp-tex-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
  border-color: var(--bp-border-highlight);
}

.bp-tex-btn.active {
  background: rgba(255, 31, 61, 0.12);
  border-color: var(--bp-vermilion);
  color: #ffffff;
  box-shadow: 0 0 12px rgba(255, 31, 61, 0.25);
}

.bp-tex-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--bp-dim);
}

.bp-tex-btn.active .bp-tex-indicator {
  background: var(--bp-vermilion);
  box-shadow: 0 0 6px var(--bp-vermilion);
}

/* ==========================================================================
   Section 2: Geometric Anatomy of Master Emblem (四维结构深度解构)
   ========================================================================== */
.bp-section {
  padding: 72px 0;
  border-top: 1px solid var(--bp-border-subtle);
}

.bp-section-head {
  margin-bottom: 36px;
}

.bp-section-kicker {
  font-family: var(--font-hud, monospace);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--bp-vermilion);
  text-transform: uppercase;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.bp-section-title {
  font-family: var(--font-cn-title, "Shizuka-Glitch-Mincho", serif);
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 10px;
}

.bp-section-desc {
  font-size: 0.98rem;
  color: var(--bp-muted);
  max-width: 70ch;
  line-height: 1.6;
}

.bp-anatomy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.bp-anatomy-card {
  background: var(--bp-plate);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-md);
  padding: 22px;
  transition: all 0.3s var(--bp-spring-snappy);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.bp-anatomy-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 31, 61, 0.4);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.6), 0 0 20px rgba(255, 31, 61, 0.15);
}

.bp-anatomy-badge {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.bp-anatomy-index {
  font-family: var(--font-display, "Venus Rising", monospace);
  font-size: 0.85rem;
  color: var(--bp-vermilion);
  letter-spacing: 0.08em;
}

.bp-anatomy-code {
  font-family: var(--font-hud, monospace);
  font-size: 0.72rem;
  color: var(--bp-cyan);
  background: rgba(0, 245, 255, 0.08);
  padding: 2px 6px;
  border-radius: 2px;
  border: 1px solid rgba(0, 245, 255, 0.2);
}

.bp-anatomy-name {
  font-family: var(--font-cn-title, serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 10px;
}

.bp-anatomy-lead {
  font-size: 0.85rem;
  color: var(--bp-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  flex-grow: 1;
}

.bp-anatomy-list {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--bp-border-subtle);
  padding-top: 12px;
  font-size: 0.8rem;
  color: var(--bp-dim);
  line-height: 1.7;
}

.bp-anatomy-list li {
  display: flex;
  align-items: flex-start;
  gap: 6px;
}

.bp-anatomy-list li::before {
  content: "→";
  color: var(--bp-vermilion);
}

/* ==========================================================================
   Section 3: Master Trademark Portfolio (三大官方标识与工程徽记)
   ========================================================================== */
.bp-portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.bp-portfolio-card {
  background: var(--bp-plate);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-md);
  padding: 24px;
  transition: all 0.3s var(--bp-spring-snappy);
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.bp-portfolio-card:hover {
  transform: translateY(-4px);
  border-color: var(--bp-border-highlight);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.7);
}

.bp-portfolio-card.primary {
  border-color: rgba(255, 31, 61, 0.35);
  background: linear-gradient(180deg, rgba(20, 26, 38, 0.9) 0%, rgba(14, 18, 28, 0.9) 100%);
}

.bp-portfolio-card.primary:hover {
  border-color: var(--bp-vermilion);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.8), 0 0 24px rgba(255, 31, 61, 0.25);
}

.bp-mark-preview {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at center, rgba(255, 255, 255, 0.03) 0%, rgba(6, 8, 12, 0.8) 70%);
  border: 1px solid var(--bp-border-subtle);
  border-radius: var(--bp-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  margin-bottom: 20px;
  position: relative;
  overflow: hidden;
}

.bp-mark-img {
  max-width: 86%;
  max-height: 86%;
  object-fit: contain;
  transition: transform 0.4s var(--bp-spring-snappy);
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.8));
}

.bp-portfolio-card:hover .bp-mark-img {
  transform: scale(1.05);
}

.bp-mark-meta-tag {
  position: absolute;
  top: 10px;
  right: 10px;
  font-family: var(--font-hud, monospace);
  font-size: 0.7rem;
  color: var(--bp-dim);
  background: rgba(0, 0, 0, 0.6);
  padding: 2px 6px;
  border-radius: 2px;
  border: 1px solid var(--bp-border-subtle);
}

.bp-mark-title {
  font-family: var(--font-cn-title, serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 4px;
}

.bp-mark-sub {
  font-family: var(--font-display, monospace);
  font-size: 0.78rem;
  color: var(--bp-vermilion);
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.bp-mark-desc {
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--bp-muted);
  margin-bottom: 18px;
  flex-grow: 1;
}

.bp-mark-specs {
  background: rgba(6, 8, 12, 0.5);
  border: 1px solid var(--bp-border-subtle);
  border-radius: var(--bp-radius-sm);
  padding: 10px 14px;
  font-family: var(--font-hud, monospace);
  font-size: 0.74rem;
  color: var(--bp-dim);
  margin-bottom: 18px;
  line-height: 1.8;
}

.bp-mark-specs div span {
  color: var(--bp-frost);
}

.bp-mark-download {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-sm);
  color: var(--bp-frost);
  text-decoration: none;
  font-size: 0.82rem;
  font-family: var(--font-hud, monospace);
  transition: all 0.2s var(--bp-spring-snappy);
}

.bp-mark-download:hover {
  background: var(--bp-vermilion);
  border-color: var(--bp-vermilion);
  color: #ffffff;
  transform: translateY(-2px);
}

/* Sub-row for Code & Shield marks */
.bp-submarks-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.bp-submark-card {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 20px;
  background: var(--bp-plate);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-md);
  padding: 18px 22px;
  align-items: center;
  transition: all 0.25s var(--bp-spring-snappy);
}

.bp-submark-card:hover {
  transform: translateY(-2px);
  border-color: var(--bp-border-highlight);
}

.bp-submark-thumb {
  width: 90px;
  height: 90px;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid var(--bp-border-subtle);
  border-radius: var(--bp-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.bp-submark-thumb img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* ==========================================================================
   Section 4: Syndicate Ecosystem Matrix (集团生态五大战略主线)
   ========================================================================== */
.bp-ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.bp-eco-card {
  background: var(--bp-plate);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-md);
  padding: 24px;
  transition: all 0.3s var(--bp-spring-snappy);
  display: flex;
  flex-direction: column;
}

.bp-eco-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 31, 61, 0.35);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
}

.bp-eco-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.bp-eco-index {
  font-family: var(--font-display, monospace);
  font-size: 0.85rem;
  color: var(--bp-vermilion);
}

.bp-eco-status {
  font-family: var(--font-hud, monospace);
  font-size: 0.7rem;
  background: rgba(0, 245, 255, 0.08);
  color: var(--bp-cyan);
  padding: 2px 6px;
  border-radius: 2px;
  border: 1px solid rgba(0, 245, 255, 0.2);
}

.bp-eco-title {
  font-family: var(--font-cn-title, serif);
  font-size: 1.3rem;
  color: #ffffff;
  margin: 0 0 6px;
}

.bp-eco-entity {
  font-family: var(--font-hud, monospace);
  font-size: 0.74rem;
  color: var(--bp-dim);
  margin-bottom: 14px;
  line-height: 1.4;
}

.bp-eco-desc {
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--bp-muted);
  margin-bottom: 18px;
  flex-grow: 1;
}

.bp-eco-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--bp-frost);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s;
}

.bp-eco-link::after {
  content: "→";
  color: var(--bp-vermilion);
  transition: transform 0.2s var(--bp-spring-snappy);
}

.bp-eco-card:hover .bp-eco-link::after {
  transform: translateX(4px);
}

/* ==========================================================================
   Section 5: Mathematical Color System & Typography Engineering
   ========================================================================== */
.bp-colors-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.bp-color-card {
  background: var(--bp-plate);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-md);
  padding: 14px;
  cursor: pointer;
  transition: all 0.25s var(--bp-spring-snappy);
  position: relative;
}

.bp-color-card:hover {
  transform: translateY(-4px);
  border-color: var(--bp-border-highlight);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.6);
}

.bp-color-swatch {
  width: 100%;
  height: 90px;
  border-radius: var(--bp-radius-sm);
  margin-bottom: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 8px;
}

.bp-contrast-badge {
  font-family: var(--font-hud, monospace);
  font-size: 0.68rem;
  background: rgba(0, 0, 0, 0.7);
  color: #ffffff;
  padding: 2px 5px;
  border-radius: 2px;
  backdrop-filter: blur(4px);
}

.bp-color-name {
  font-weight: 700;
  font-size: 0.9rem;
  color: #ffffff;
  margin-bottom: 4px;
}

.bp-color-hex {
  font-family: var(--font-hud, monospace);
  font-size: 0.78rem;
  color: var(--bp-vermilion);
  margin-bottom: 2px;
}

.bp-color-hsl {
  font-family: var(--font-hud, monospace);
  font-size: 0.7rem;
  color: var(--bp-dim);
}

.bp-copy-hint {
  font-size: 0.7rem;
  color: var(--bp-cyan);
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.2s;
}

.bp-color-card:hover .bp-copy-hint {
  opacity: 1;
}

/* Typography Specimen Grid */
.bp-type-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.bp-type-card {
  background: var(--bp-plate);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-md);
  padding: 24px;
}

.bp-type-preview {
  font-size: 1.8rem;
  line-height: 1.3;
  margin-bottom: 12px;
  color: #ffffff;
  border-bottom: 1px dashed var(--bp-border-subtle);
  padding-bottom: 14px;
}

.bp-type-preview.display {
  font-family: var(--font-display, "Venus Rising", sans-serif);
  color: var(--bp-vermilion);
}

.bp-type-preview.cn-title {
  font-family: var(--font-cn-title, "Shizuka-Glitch-Mincho", serif);
}

.bp-type-preview.hud {
  font-family: var(--font-hud, monospace);
  color: var(--bp-cyan);
}

.bp-type-preview.body-sample {
  font-family: var(--font-body, system-ui, sans-serif);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--bp-frost);
}

.bp-type-meta {
  font-family: var(--font-hud, monospace);
  font-size: 0.78rem;
  color: var(--bp-dim);
  line-height: 1.6;
}

.bp-type-meta strong {
  color: var(--bp-frost);
}

/* ==========================================================================
   Section 6: Brand Integrity Redlines & Misuse Prohibitions (合规防线)
   ========================================================================== */
.bp-redlines-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bp-plate);
  border: 1px solid rgba(255, 31, 61, 0.25);
  border-radius: var(--bp-radius-md);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
}

.bp-redlines-table th,
.bp-redlines-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--bp-border-subtle);
  font-size: 0.88rem;
}

.bp-redlines-table th {
  background: rgba(255, 31, 61, 0.08);
  font-family: var(--font-hud, monospace);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--bp-vermilion);
  text-transform: uppercase;
}

.bp-redlines-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.bp-redline-rule {
  font-weight: 700;
  color: #ffffff;
}

.bp-redline-tag {
  display: inline-block;
  font-family: var(--font-hud, monospace);
  font-size: 0.7rem;
  padding: 2px 6px;
  background: rgba(255, 31, 61, 0.15);
  border: 1px solid rgba(255, 31, 61, 0.4);
  color: var(--bp-vermilion);
  border-radius: 2px;
}

/* ==========================================================================
   Section 7: Vector Press Kit & High-Res Vault (官方资产下载区)
   ========================================================================== */
.bp-vault-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.bp-vault-card {
  background: var(--bp-plate);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s var(--bp-spring-snappy);
}

.bp-vault-card:hover {
  transform: translateY(-4px);
  border-color: var(--bp-border-highlight);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.7);
}

.bp-vault-icon {
  font-size: 1.8rem;
  color: var(--bp-vermilion);
  margin-bottom: 12px;
  font-family: var(--font-display, monospace);
}

.bp-vault-title {
  font-family: var(--font-cn-title, serif);
  font-size: 1.15rem;
  color: #ffffff;
  margin: 0 0 6px;
}

.bp-vault-meta {
  font-family: var(--font-hud, monospace);
  font-size: 0.72rem;
  color: var(--bp-dim);
  margin-bottom: 12px;
}

.bp-vault-desc {
  font-size: 0.82rem;
  color: var(--bp-muted);
  line-height: 1.5;
  margin-bottom: 16px;
  flex-grow: 1;
}

/* Toast Copy Notification */
.bp-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(10, 14, 22, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid var(--bp-vermilion);
  color: #ffffff;
  padding: 12px 20px;
  border-radius: var(--bp-radius-sm);
  font-family: var(--font-hud, monospace);
  font-size: 0.85rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8), 0 0 20px rgba(255, 31, 61, 0.3);
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 10px;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s var(--bp-spring-snappy);
  pointer-events: none;
}

.bp-toast.visible {
  transform: translateY(0);
  opacity: 1;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .bp-hero-grid {
    grid-template-columns: 1fr;
  }
  .bp-anatomy-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .bp-portfolio-grid {
    grid-template-columns: 1fr;
  }
  .bp-ecosystem-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .bp-colors-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .bp-vault-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .bp-telemetry-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .bp-anatomy-grid {
    grid-template-columns: 1fr;
  }
  .bp-submarks-grid {
    grid-template-columns: 1fr;
  }
  .bp-ecosystem-grid {
    grid-template-columns: 1fr;
  }
  .bp-colors-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .bp-type-grid {
    grid-template-columns: 1fr;
  }
  .bp-vault-grid {
    grid-template-columns: 1fr;
  }
  .bp-texture-switcher {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Multi-Tier Navigation & Subpage Architecture Extensions (L2 / L3)
   ========================================================================== */

/* Breadcrumb Navigation */
.bp-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-hud, monospace);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--bp-dim);
  padding: 12px 18px;
  background: rgba(10, 14, 22, 0.6);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-sm);
  margin-bottom: 24px;
}
.bp-breadcrumb a {
  color: var(--bp-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}
.bp-breadcrumb a:hover {
  color: var(--bp-cyan);
}
.bp-breadcrumb .bp-sep {
  color: var(--bp-dark-dim);
  user-select: none;
}
.bp-breadcrumb .current {
  color: var(--bp-vermilion);
  font-weight: 600;
}

/* Detail Hero for L2 & L3 Subpages */
.bp-detail-hero {
  padding: 36px 0 28px;
  border-bottom: 1px solid var(--bp-border);
  margin-bottom: 40px;
}
.bp-detail-hero .bp-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-hud, monospace);
  font-size: 0.78rem;
  color: var(--bp-cyan);
  background: rgba(0, 245, 255, 0.08);
  border: 1px solid rgba(0, 245, 255, 0.2);
  padding: 4px 12px;
  border-radius: var(--bp-radius-sm);
  margin-bottom: 14px;
}
.bp-detail-hero .bp-detail-title {
  font-family: var(--font-cn-title, var(--font-display, sans-serif));
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 10px;
  line-height: 1.15;
}
.bp-detail-hero .bp-detail-title-en {
  display: block;
  font-family: var(--font-display, sans-serif);
  font-size: clamp(0.9rem, 1.6vw, 1.25rem);
  color: var(--bp-dim);
  font-weight: 400;
  letter-spacing: 0.08em;
  margin-top: 6px;
}
.bp-detail-hero .bp-detail-lead {
  font-size: 1.05rem;
  color: var(--bp-muted);
  line-height: 1.7;
  max-width: 68ch;
  margin: 16px 0 0;
}

/* Branch Portals Grid (5-column or 3-column) */
.bp-portals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
  margin: 28px 0;
}
.bp-portal-card {
  position: relative;
  background: linear-gradient(180deg, rgba(20, 28, 43, 0.75) 0%, rgba(10, 14, 22, 0.95) 100%);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s var(--bp-spring-snappy);
  overflow: hidden;
  text-decoration: none;
}
.bp-portal-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: transparent;
  transition: background 0.3s ease;
}
.bp-portal-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 31, 61, 0.4);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6), 0 0 20px rgba(255, 31, 61, 0.15);
}
.bp-portal-card:hover::before {
  background: linear-gradient(90deg, var(--bp-vermilion), var(--bp-cyan));
}
.bp-portal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.bp-portal-index {
  font-family: var(--font-hud, monospace);
  font-size: 0.78rem;
  color: var(--bp-cyan);
  letter-spacing: 0.08em;
}
.bp-portal-tag {
  font-family: var(--font-hud, monospace);
  font-size: 0.72rem;
  color: var(--bp-dim);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--bp-border-subtle);
  padding: 2px 8px;
  border-radius: var(--bp-radius-sm);
}
.bp-portal-title {
  font-family: var(--font-cn-title, sans-serif);
  font-size: 1.3rem;
  color: #ffffff;
  margin: 0 0 6px;
  font-weight: 700;
}
.bp-portal-en {
  font-family: var(--font-display, monospace);
  font-size: 0.8rem;
  color: var(--bp-dim);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}
.bp-portal-desc {
  font-size: 0.88rem;
  color: var(--bp-muted);
  line-height: 1.6;
  margin: 0 0 16px;
  flex-grow: 1;
}
.bp-portal-sublinks {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  padding-top: 12px;
}
.bp-portal-sublinks li {
  font-size: 0.82rem;
  color: var(--bp-dim);
  padding: 3px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}
.bp-portal-sublinks li span.arrow {
  color: var(--bp-vermilion);
}
.bp-portal-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-hud, monospace);
  font-size: 0.85rem;
  color: var(--bp-vermilion);
  font-weight: 600;
  transition: transform 0.2s ease;
}
.bp-portal-card:hover .bp-portal-cta {
  transform: translateX(4px);
  color: #ffffff;
}

/* Technical Specification Table */
.bp-spec-table-wrap {
  overflow-x: auto;
  margin: 24px 0;
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-md);
  background: var(--bp-card);
}
.bp-spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}
.bp-spec-table th {
  background: rgba(10, 14, 22, 0.85);
  color: var(--bp-cyan);
  font-family: var(--font-hud, monospace);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  padding: 12px 18px;
  border-bottom: 1px solid var(--bp-border);
  white-space: nowrap;
}
.bp-spec-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--bp-border-subtle);
  color: var(--bp-muted);
  line-height: 1.6;
}
.bp-spec-table tr:last-child td {
  border-bottom: none;
}
.bp-spec-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}
.bp-spec-key {
  color: #ffffff;
  font-weight: 600;
  font-family: var(--font-hud, monospace);
}
.bp-spec-code {
  font-family: var(--font-hud, monospace);
  color: var(--bp-cyan);
  background: rgba(0, 245, 255, 0.06);
  padding: 2px 6px;
  border-radius: var(--bp-radius-sm);
  font-size: 0.84rem;
}
.bp-spec-hash {
  font-family: var(--font-hud, monospace);
  font-size: 0.76rem;
  color: var(--bp-dim);
  word-break: break-all;
}

/* CAD & Diagram Visual Canvas */
.bp-cad-viewer {
  background: radial-gradient(circle at center, rgba(16, 22, 34, 0.9) 0%, rgba(6, 8, 12, 0.98) 100%);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-md);
  padding: 32px;
  margin: 28px 0;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.bp-cad-viewer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 245, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 255, 0.04) 1px, transparent 1px);
  background-size: 20px 20px;
  pointer-events: none;
}
.bp-cad-diagram {
  max-width: 100%;
  height: auto;
  position: relative;
  z-index: 1;
}

/* Download Action Button Pill */
.bp-btn-download-pill {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(20, 28, 43, 0.8);
  border: 1px solid var(--bp-border);
  border-radius: var(--bp-radius-sm);
  padding: 10px 16px;
  color: #ffffff;
  text-decoration: none;
  font-family: var(--font-hud, monospace);
  font-size: 0.84rem;
  transition: all 0.25s var(--bp-spring-snappy);
  margin-top: 10px;
}
.bp-btn-download-pill:hover {
  background: var(--bp-vermilion);
  border-color: var(--bp-vermilion);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 31, 61, 0.35);
}
.bp-btn-download-pill .bp-pill-tag {
  background: rgba(0, 0, 0, 0.3);
  padding: 2px 6px;
  border-radius: var(--bp-radius-sm);
  font-size: 0.72rem;
  color: var(--bp-cyan);
}
.bp-btn-download-pill:hover .bp-pill-tag {
  color: #ffffff;
  background: rgba(0, 0, 0, 0.4);
}