/* ==========================================================================
   17 · UI DESIGN ENGINEER — ROWS.GG STYLE SYSTEM
   8pt / 4pt Unified Grid & Spacing Design System
   ========================================================================== */

:root {
  /* jib.design 官方浅色调色盘 (Light / Studio Clean) */
  --bg-canvas: #fafafa;
  --bg-card: #ffffff;
  --bg-card-subtle: #f2f2f2;
  --bg-card-hover: #ffffff;
  --bg-input: #ffffff;

  /* 墨水文本 */
  --ink: #1A191D;
  --ink-secondary: rgba(26, 25, 29, 0.72);
  --ink-tertiary: rgba(26, 25, 29, 0.40);
  --ink-faint: rgba(26, 25, 29, 0.08);

  /* 发丝线边框 */
  --border: rgba(0, 0, 0, 0.08);
  --border-subtle: rgba(0, 0, 0, 0.05);
  --border-medium: rgba(0, 0, 0, 0.12);
  --border-hover: rgba(0, 0, 0, 0.24);

  /* 专属选区高亮：纯粹高级黑底白字 (High-Contrast Monochrome Selection) */
  --selection-bg: #1A191D;
  --selection-fg: #ffffff;

  /* 品牌点睛色 (Logo 专属橙) */
  --accent: #ff5722;
  --accent-subtle: rgba(255, 87, 34, 0.1);
  --accent-glow: rgba(255, 87, 34, 0.25);

  /* 字体族 */
  --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  /* 8pt / 4pt 现代原子化网格与间距系统 (8pt Baseline & 4pt Sub-grid Tokens) */
  --space-0-5: 4px;   /* 0.5x - 微型元素间隙、状态点与文字间距 */
  --space-1: 8px;     /* 1x   - 基础步进：图标与文字间距、紧凑内边距 */
  --space-1-5: 12px;  /* 1.5x - 紧凑列表项间距、次级元素间隙 */
  --space-2: 16px;    /* 2x   - 标准间距：标准按钮水平 padding、段落间距、网格默认 gap */
  --space-2-5: 20px;  /* 2.5x - 卡片间距、中等留白 */
  --space-3: 24px;    /* 3x   - 卡片标准内边距、悬浮控制项边缘边距 */
  --space-4: 32px;    /* 4x   - 模块分组留白、双列布局间隙、大卡片内边距 */
  --space-5: 40px;    /* 5x   - 归档/详情页板块切换间距 */
  --space-6: 48px;    /* 6x   - 主版块垂直节奏留白、导航底部下边距 */
  --space-7: 56px;    /* 7x   - 移动端/平板端板块留白 */
  --space-8: 64px;    /* 8x   - 核心 Section 留白、英雄区底部 padding */
  --space-9: 72px;    /* 9x   - 核心 Section 纵向大节奏留白 (7D 追踪器/工作经历) */
  --space-10: 80px;   /* 10x  - 宽屏大版块切换留白 */
  --space-12: 96px;   /* 12x  - 归档页底部安全留白、大容器间距 */
  --space-16: 128px;  /* 16x  - 英雄区顶部安全净距 (避让固定 Logo 与控制按钮) */

  /* 版心与响应式容器栅格 Tokens */
  --container-max-width: 880px;
  --container-wide-max-width: 1160px;
  --container-gutter-sm: var(--space-2);   /* 16px */
  --container-gutter-md: var(--space-3);   /* 24px */
  --container-gutter-lg: var(--space-4);   /* 32px */

  /* 统一圆角规范 Tokens (Unified Radius System) */
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-sm: 6px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.02), 0 4px 12px rgba(0, 0, 0, 0.03);
  --shadow-pop: 0 4px 14px rgba(0, 0, 0, 0.06);

  /* 动效 */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 0.15s;
  --duration-normal: 0.25s;
}

[data-theme="dark"] {
  /* jib.design 官方深色调色盘 (Dark / Obsidian OLED) */
  --bg-canvas: #121212;
  --bg-card: #1c1c1c;
  --bg-card-subtle: #242424;
  --bg-card-hover: #282828;
  --bg-input: #1c1c1c;

  --ink: #ededed;
  --ink-secondary: rgba(255, 255, 255, 0.60);
  --ink-tertiary: rgba(255, 255, 255, 0.33);
  --ink-faint: rgba(255, 255, 255, 0.08);

  --border: rgba(255, 255, 255, 0.08);
  --border-subtle: rgba(255, 255, 255, 0.05);
  --border-medium: rgba(255, 255, 255, 0.15);
  --border-hover: rgba(255, 255, 255, 0.26);

  --selection-bg: #ffffff;
  --selection-fg: #121212;

  --accent: #ff5722;
  --accent-subtle: rgba(255, 87, 34, 0.15);
  --accent-glow: rgba(255, 87, 34, 0.35);

  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.4), 0 6px 16px rgba(0, 0, 0, 0.3);
  --shadow-pop: 0 4px 14px rgba(0, 0, 0, 0.6);
}

/* ==========================================================================
   全局重置与排版
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  background-color: var(--bg-canvas);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  transition: background-color var(--duration-normal) ease, color var(--duration-normal) ease;
}

::selection {
  background-color: var(--selection-bg);
  color: var(--selection-fg);
}

::-moz-selection {
  background-color: var(--selection-bg);
  color: var(--selection-fg);
}

/* 链接双层划线动效 (jib.design Signature) */
.site-link {
  --link-rail: var(--border-medium);
  color: var(--ink);
  background-image: linear-gradient(var(--ink), var(--ink)), linear-gradient(var(--link-rail), var(--link-rail));
  padding-bottom: 2px;
  background-position: 100% 100%, 0 100%;
  background-repeat: no-repeat;
  background-size: 0 1px, 100% 1px;
  text-decoration: none;
  transition: background-size 0.28s cubic-bezier(0.77, 0, 0.175, 1);
}

.site-link:hover, .site-link:focus-visible {
  background-position: 0 100%, 0 100%;
  background-size: 100% 1px, 100% 1px;
  transition-duration: 0.18s;
  color: var(--ink);
}

/* 全屏物理粒子 Canvas */
.logo-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 99;
}

/* 页面主容器 */
.layout-container {
  width: min(var(--container-max-width), calc(100% - var(--space-6)));
  margin: 0 auto;
}

/* ==========================================================================
   1. 固定悬浮控制项 (Fixed Corner Floating Anchors)
   ========================================================================== */

/* 左上角独立固定 Logo 锚点 (滑动后飞向此处) */
.fixed-corner-logo {
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  width: 38px;
  height: 42px;
  z-index: 95;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  pointer-events: auto;
}

/* 右上角独立控制按钮组 (jib.design 极简位置与月牙太阳形变按钮) */
.fixed-top-controls {
  position: fixed;
  top: var(--space-3);
  right: var(--space-3);
  z-index: 95;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: transparent;
  border: none;
  color: var(--ink);
  cursor: pointer;
  outline: none;
  transition: background-color var(--duration-fast) ease, transform var(--duration-fast) ease, color var(--duration-normal) ease;
}

.theme-toggle-btn:hover {
  background-color: var(--border-subtle);
}

.theme-toggle-btn:active {
  transform: scale(0.9);
}

.theme-toggle-svg {
  width: 18px;
  height: 18px;
  overflow: visible;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.theme-sun-center {
  transform-origin: 12px 12px;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), fill var(--duration-normal) ease;
}

.theme-crescent-mask {
  transform: translate(8px, -8px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.theme-ray {
  transform-origin: 12px 12px;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
}

/* 深色模式下的形变与动效 (对标 jib.design) */
[data-theme="dark"] .theme-toggle-svg {
  transform: rotate(-15deg);
}

[data-theme="dark"] .theme-sun-center {
  transform: scale(1.6);
}

[data-theme="dark"] .theme-crescent-mask {
  transform: translate(0px, 0px);
}

[data-theme="dark"] .theme-ray {
  transform: scale(0) rotate(45deg);
  opacity: 0;
}

.version-chip {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  padding: var(--space-0-5) var(--space-1);
  border-radius: var(--radius-sm);
  background: var(--bg-card-subtle);
  color: var(--ink-tertiary);
}

/* ==========================================================================
   2. 英雄区 (Hero Section — Rows.gg 1:1 Layout)
   ========================================================================== */

.hero-section {
  position: relative;
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
  isolation: isolate;
}

/* 全站/全屏固定高质感动态交互背景 (Aurora Glow + Blueprint Grid) */
.hero-ambient-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
  mask-image: none;
  -webkit-mask-image: none;
}

/* 动态流体光晕 (Aurora Orbs) */
.hero-aurora-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  filter: blur(100px);
  opacity: 0.85;
  transform: translateZ(0);
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  will-change: transform, opacity;
  animation: hero-orb-float 18s ease-in-out infinite alternate;
}

/* Orb 1: Logo 背后温暖橙辉光 */
.hero-orb-1 {
  width: 520px;
  height: 520px;
  top: 5%;
  left: 12%;
  background: radial-gradient(circle, rgba(255, 87, 34, 0.14) 0%, rgba(255, 138, 101, 0.04) 60%, transparent 80%);
  animation-duration: 15s;
}

[data-theme="dark"] .hero-orb-1 {
  background: radial-gradient(circle, rgba(255, 87, 34, 0.22) 0%, rgba(255, 110, 64, 0.07) 55%, transparent 75%);
}

/* Orb 2: 右上方极光冷青蓝/银灰色调 */
.hero-orb-2 {
  width: 720px;
  height: 600px;
  top: -10%;
  right: 5%;
  background: radial-gradient(circle, rgba(148, 163, 184, 0.16) 0%, rgba(203, 213, 225, 0.05) 60%, transparent 80%);
  animation-duration: 22s;
  animation-delay: -5s;
}

[data-theme="dark"] .hero-orb-2 {
  background: radial-gradient(circle, rgba(56, 189, 248, 0.10) 0%, rgba(30, 41, 59, 0.25) 60%, transparent 80%);
}

/* Orb 3: 中心偏下弥散柔光 */
.hero-orb-3 {
  width: 620px;
  height: 500px;
  bottom: 8%;
  left: 32%;
  background: radial-gradient(circle, rgba(254, 243, 199, 0.20) 0%, rgba(243, 244, 246, 0.04) 60%, transparent 80%);
  animation-duration: 20s;
  animation-delay: -9s;
}

[data-theme="dark"] .hero-orb-3 {
  background: radial-gradient(circle, rgba(99, 102, 241, 0.09) 0%, rgba(15, 23, 42, 0.2) 60%, transparent 80%);
}

@keyframes hero-orb-float {
  0% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -20px) scale(1.08);
  }
  66% {
    transform: translate(-20px, 25px) scale(0.95);
  }
  100% {
    transform: translate(15px, -15px) scale(1.04);
  }
}

/* 交互式点阵网格 Canvas */
.hero-ambient-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

/* 英雄区内容提升层级，确保文字清晰且可选 */
.hero-content {
  position: relative;
  z-index: 2;
  pointer-events: auto;
}

/* 开篇 Logo 触发区 */
.hero-logo-wrapper {
  margin-bottom: var(--space-3);
  display: inline-block;
}

.hero-logo-anchor {
  width: 48px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  position: relative;
  cursor: pointer;
}

.hero-logo-anchor img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0; /* Canvas 完全接管渲染 */
  pointer-events: none;
}

.hero-headline {
  font-size: clamp(22px, 3.6vw, 38px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: var(--ink);
  max-width: 100%;
  margin-bottom: var(--space-2);
  white-space: nowrap;
}

@media (max-width: 640px) {
  .hero-headline {
    white-space: normal;
    font-size: 26px;
    line-height: 1.35;
  }
}

.hero-copy {
  font-size: 16px;
  line-height: 1.68;
  color: #1A191D;
  max-width: 580px;
  margin-bottom: var(--space-4);
  text-wrap: pretty;
}

[data-theme="dark"] .hero-copy {
  color: var(--ink-secondary);
}

.hero-copy strong {
  color: var(--ink);
  font-weight: 600;
}

/* Rows.gg 经典按钮组 */
.hero-cta-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.btn-pill-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  background: var(--ink);
  color: var(--bg-canvas);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-spring), opacity var(--duration-fast);
}

.btn-pill-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-pill-primary:active {
  transform: translateY(0);
}

.btn-text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  padding: var(--space-1) var(--space-0-5);
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
  transition: gap var(--duration-fast) ease, color var(--duration-fast);
}

.btn-text-link:hover {
  gap: 10px;
  color: var(--accent);
}

.btn-shoot-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px var(--space-2);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-fast);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.btn-shoot-pill:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-1px);
}

/* ==========================================================================
   3. 双列分割版块 (Split Sections — Rows.gg 经典左右布局)
   ========================================================================== */

.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
  padding: 0;
  margin-bottom: var(--space-9);
  border-top: none;
}

.split-section.reverse {
  grid-template-columns: 1fr 1fr;
}

/* 左侧交互展示卡片 (Tracker Card) */
.media-col {
  width: 100%;
}

.interactive-card {
  background: var(--bg-card-subtle);
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  box-shadow: none;
}

.card-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}

.card-title-text {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

/* 1:1 对标 rows.gg 的纯白无描边药丸卡片 (Pill Items) 与平滑物理滑块 */
.tracker-rows-list {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

/* 动态平滑物理滑块 (Gliding Selection Pill: 消除闪烁，实现丝滑下滑动效) */
.tracker-sliding-indicator {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 44px;
  background: #ffffff;
  border-radius: var(--radius-full);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 3px 8px rgba(0, 0, 0, 0.03);
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  transition: transform 0.38s cubic-bezier(0.16, 1, 0.3, 1),
              height 0.38s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.2s ease;
  will-change: transform, height;
}

[data-theme="dark"] .tracker-sliding-indicator {
  background: #242424;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 3px 8px rgba(0, 0, 0, 0.2);
}

.tracker-pill-item {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px var(--space-2);
  background: transparent !important;
  border: none;
  border-radius: var(--radius-full);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink-secondary);
  cursor: pointer;
  box-shadow: none !important;
  transition: color 0.2s ease;
}

.tracker-pill-item:hover {
  color: var(--ink);
}

.tracker-pill-item.active {
  color: var(--ink);
  font-weight: 600;
}

[data-theme="dark"] .tracker-pill-item {
  color: var(--ink-secondary);
}

[data-theme="dark"] .tracker-pill-item.active {
  color: var(--ink);
}

.pill-left {
  display: flex;
  align-items: center;
  gap: var(--space-1-5);
}

.pill-badge-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  background-color: #171717; /* 未选中状态：统一为经典墨黑 */
  color: #ffffff;
  flex-shrink: 0;
  box-sizing: border-box;
  border: 1px solid transparent;
  -webkit-font-smoothing: antialiased;
  transform: translateZ(0); /* 常驻 GPU 合成层，彻底消灭切换时的抗锯齿闪变与图层解除跳动 */
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

[data-theme="dark"] .pill-badge-num {
  background-color: #262626;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.15);
}

/* 选中状态 (Active)：统一使用 17 专属品牌主色（橙色 #ff5722），尺寸稳定无缩放闪烁 */
.tracker-pill-item.active .pill-badge-num {
  background-color: var(--accent);
  color: #ffffff;
  border-color: transparent;
}

[data-theme="dark"] .tracker-pill-item.active .pill-badge-num {
  background-color: var(--accent);
  color: #ffffff;
  border-color: transparent;
}

.pill-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-tertiary);
  margin-left: var(--space-1);
  flex-shrink: 0;
}

.pill-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--bg-card-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}

/* 右侧纯粹大字排版 (Pure Editorial Typography — No Heavy Boxes) */
.copy-col {
  display: flex;
  flex-direction: column;
}

.copy-heading {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: var(--space-2);
  transition: opacity 0.18s ease, transform 0.18s var(--ease-spring);
}

.copy-desc {
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-secondary);
  text-wrap: pretty;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: opacity 0.18s ease, transform 0.18s var(--ease-spring);
}

.copy-fade-out {
  opacity: 0;
  transform: translateY(4px);
}

/* ==========================================================================
   4. JIB.DESIGN 样式：精选项目横向突破版心画廊 (Shot-Well Gallery)
   ========================================================================== */

.shotwell-section {
  padding: 0;
  margin-bottom: var(--space-2);
  border-top: none;
}

.shotwell-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}

.section-caption-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  color: var(--ink-tertiary);
  text-transform: lowercase;
  margin-bottom: 0;
}

/* ==========================================================================
   Rows.gg 官方 1:1 纯粹精巧交互 (Minimalist Vector Stretch + 1.0s Tension Charge + Precision Trail)
   ========================================================================== */

.rows-more-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1-5);
  padding: 6px var(--space-2);
  background-color: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  outline: none;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
  transition: background-color var(--duration-fast) ease,
              border-color var(--duration-fast) ease,
              box-shadow var(--duration-fast) ease,
              transform var(--duration-fast) var(--ease-spring);
  position: relative;
  user-select: none;
}

.rows-more-btn:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.rows-more-text {
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.rows-more-btn svg {
  display: block;
  overflow: visible;
}

.rows-demo-arrow {
  transform-origin: 0;
  transition: transform 0.22s cubic-bezier(0.3, 0.8, 0.4, 1);
  display: inline-flex;
  transform: translate(0);
}

.rows-arrow-head {
  transition: transform 0.34s cubic-bezier(0.3, 1.5, 0.4, 1);
  transform: translate(0);
}

.rows-arrow-tail {
  stroke-dasharray: 24;
  stroke-dashoffset: 13px;
  transition: stroke-dashoffset 0.34s cubic-bezier(0.3, 1.5, 0.4, 1);
}

/* 1. 悬停态：箭头头部前移 13px，尾部发丝线延伸拉长 */
.rows-more-btn:hover:not([data-charge]) .rows-arrow-head {
  transform: translate(13px);
}

.rows-more-btn:hover:not([data-charge]) .rows-arrow-tail {
  stroke-dashoffset: 0;
}

/* 2. 点击蓄力状态 (data-charge="recoil" / "shake" / "shake2") */
.rows-more-btn[data-charge="recoil"] .rows-demo-arrow,
.rows-more-btn[data-charge="shake"] .rows-demo-arrow,
.rows-more-btn[data-charge="shake2"] .rows-demo-arrow {
  transition: transform 0.28s cubic-bezier(0.55, 0.05, 0.3, 1);
  transform: translate(-5px);
}

.rows-more-btn[data-charge="recoil"] .rows-arrow-head,
.rows-more-btn[data-charge="shake"] .rows-arrow-head,
.rows-more-btn[data-charge="shake2"] .rows-arrow-head {
  transition: transform 0.28s cubic-bezier(0.55, 0.05, 0.3, 1);
  transform: translate(-2px);
}

.rows-more-btn[data-charge="recoil"] .rows-arrow-tail,
.rows-more-btn[data-charge="shake"] .rows-arrow-tail,
.rows-more-btn[data-charge="shake2"] .rows-arrow-tail {
  stroke-dashoffset: 16px;
  transition: stroke-dashoffset 0.28s cubic-bezier(0.55, 0.05, 0.3, 1);
}

/* 柔和微震 (Soft Shake) */
@keyframes demoArrowShakeSoft {
  0%, 100% { transform: translate(-5px) rotate(0deg); }
  25% { transform: translate(-5.4px, -0.5px) rotate(-0.8deg); }
  75% { transform: translate(-4.6px, 0.5px) rotate(0.8deg); }
}

/* 紧绷强震 (Hard Shake) */
@keyframes demoArrowShakeHard {
  0%, 100% { transform: translate(-5px) rotate(0deg); }
  20% { transform: translate(-6.2px, -0.8px) rotate(-1.5deg); }
  40% { transform: translate(-3.8px, 0.8px) rotate(1.5deg); }
  60% { transform: translate(-5.8px, 0.6px) rotate(-1deg); }
  80% { transform: translate(-4.2px, -0.6px) rotate(1deg); }
}

.rows-more-btn[data-charge="shake"] .rows-demo-arrow {
  animation: 0.34s ease-in-out infinite demoArrowShakeSoft;
}

.rows-more-btn[data-charge="shake2"] .rows-demo-arrow {
  animation: 0.12s ease-in-out infinite demoArrowShakeHard;
}

/* 3. 发射态 (Fire) */
.rows-more-btn[data-charge="fire"] .rows-demo-arrow {
  opacity: 0;
  transition: none;
}

/* 独立飞行箭头 (Fixed Flying Arrow) */
.demoArrowFly {
  position: fixed;
  z-index: 2147483000;
  pointer-events: none;
  will-change: transform;
  display: inline-flex;
  transform: translate3d(0, 0, 0);
}

.demoArrowFly svg {
  display: block;
  overflow: visible;
}

/* 细腻重力物理微尘画布 (Fixed Micro-Dust Trail Canvas) */
.demoArrowTrail {
  position: fixed;
  inset: 0;
  z-index: 2147482999;
  pointer-events: none;
}

.shotwell-viewport {
  position: relative;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  overflow-x: auto;
  overscroll-behavior-x: none;
  -webkit-overflow-scrolling: touch;
  margin-top: calc(-1 * var(--space-3));
  margin-bottom: var(--space-6);
  padding-top: var(--space-3);
  padding-bottom: var(--space-4);
}

.shotwell-track {
  display: grid;
  grid-template-rows: repeat(2, auto);
  grid-auto-flow: column;
  column-gap: var(--space-2);
  row-gap: var(--space-2);
  width: max-content;
  padding-left: max(var(--space-3), calc((100vw - min(var(--container-max-width), calc(100% - var(--space-6)))) / 2));
  padding-right: max(var(--space-3), calc((100vw - min(var(--container-max-width), calc(100% - var(--space-6)))) / 2));
  padding-top: var(--space-1);
  padding-bottom: var(--space-1-5);
}

.shotwell-card {
  width: min(calc(100vw - var(--space-4)), 540px);
  aspect-ratio: 540 / 325;
  background-color: var(--bg-card-subtle);
  background-image: radial-gradient(rgba(0, 0, 0, 0.04) 1px, transparent 1px);
  background-size: 14px 14px;
  border: none;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  box-shadow: none;
  cursor: default;
  flex-shrink: 0;
  transform-style: preserve-3d;
  perspective: 1000px;
  will-change: transform;
  transition: background-color 0.25s ease, box-shadow 0.3s ease;
}

.shotwell-card[data-project-url] {
  cursor: pointer;
}

[data-theme="dark"] .shotwell-card {
  background-color: #1c1c1c;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  border: none;
}

@media (max-width: 640px) {
  .shotwell-card {
    width: min(calc(84vw), 330px);
    padding: 12px;
  }
}

@media (min-width: 640px) {
  .shotwell-card {
    padding: 24px;
  }
}

.shotwell-card:hover {
  background-color: var(--bg-card-hover);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.03);
}

[data-theme="dark"] .shotwell-card:hover {
  border: none;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5), 0 4px 16px rgba(0, 0, 0, 0.3);
}

/* 动态镜面反射高光层 (随鼠标位置移动) */
.shotwell-glare {
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 65%);
  opacity: 0;
  mix-blend-mode: overlay;
  transition: opacity 0.3s ease;
  z-index: 15;
}

[data-theme="dark"] .shotwell-glare {
  background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0) 65%);
}

/* 中心悬浮高保真 UI 画板 */
.shotwell-artboard {
  width: 100%;
  height: 100%;
  background: #ffffff;
  border-radius: var(--radius-md);
  border: none;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.04);
  padding: var(--space-2) var(--space-2-5);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  position: relative;
  transform-style: preserve-3d;
  will-change: transform;
  transition: transform 0.25s var(--ease-spring), box-shadow 0.3s ease;
}

.shotwell-card:hover .shotwell-artboard {
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08), 0 3px 8px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .shotwell-artboard {
  background: #15171e;
  border: none;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.6), 0 1px 3px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .shotwell-card:hover .shotwell-artboard {
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.8), 0 4px 14px rgba(0, 0, 0, 0.5);
}

/* 支持图片封面的画板 (四边等宽留白悬浮展示，16:9 无裁切) */
.shotwell-artboard.has-cover-image {
  padding: 0;
  background: transparent;
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  max-width: 100%;
  max-height: 100%;
  display: block;
}

.artboard-cover-img,
.artboard-cover-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  border-radius: inherit;
  pointer-events: none;
  user-select: none;
}

/* 画板顶部微导航 */
.artboard-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 9px;
  color: var(--ink-tertiary);
  font-family: var(--font-mono);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: var(--space-1);
}

.artboard-brand {
  font-weight: 700;
  color: var(--ink);
  font-size: 10px;
}

/* 画板中央标语区 */
.artboard-hero-title {
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
  max-width: 320px;
  margin: var(--space-1) 0;
  letter-spacing: -0.015em;
}

/* 画板底部图片与清单双列 */
.artboard-bottom-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: auto;
}

.artboard-thumbs-grid {
  display: flex;
  gap: 6px;
}

.artboard-thumb {
  width: 44px;
  height: 48px;
  border-radius: 4px;
  overflow: hidden;
  border: none;
  flex-shrink: 0;
}

.artboard-step-list {
  font-family: var(--font-mono);
  font-size: 8.5px;
  line-height: 1.5;
  color: var(--ink-secondary);
  display: flex;
  flex-direction: column;
  gap: 1px;
}

/* 移动端三联屏样式 (Mobile Tri-Screen) */
.mobile-tri-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1-5);
  height: 100%;
  padding: var(--space-0-5) 0;
}

.mobile-mockup-frame {
  flex: 1;
  max-width: 120px;
  height: 100%;
  background: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-1) 6px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .mobile-mockup-frame {
  background: #181b24;
  border: none;
}

.mobile-mockup-frame.dark-modal {
  background: #111318;
  color: #ffffff;
  border: none;
}

.mobile-time-bar {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 7.5px;
  color: var(--ink-tertiary);
  margin-bottom: var(--space-0-5);
}

.mobile-filter-pills {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-0-5);
  margin: auto 0;
}

.mobile-pill {
  font-size: 8px;
  font-family: var(--font-sans);
  padding: 2px var(--space-1);
  border-radius: var(--radius-full);
  color: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-pill.active {
  background: #ffffff;
  color: #000000;
  font-weight: 600;
  border-color: #ffffff;
}

.card-ui-mockup-1 {
  background: linear-gradient(135deg, rgba(255, 87, 34, 0.05) 0%, rgba(0, 0, 0, 0) 100%), var(--bg-card);
}
.card-ui-mockup-2 {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.06) 0%, rgba(0, 0, 0, 0) 100%), var(--bg-card);
}
.card-ui-mockup-3 {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.06) 0%, rgba(0, 0, 0, 0) 100%), var(--bg-card);
}
.card-ui-mockup-4 {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.06) 0%, rgba(0, 0, 0, 0) 100%), var(--bg-card);
}

/* ==========================================================================
   5. JIB.DESIGN 样式：工作经历发丝线列表 (Experiences Hairline List)
   ========================================================================== */

.jib-experiences-section {
  padding: 0;
  margin-bottom: var(--space-9);
  border-top: none;
}

.jib-exp-list {
  list-style: none;
  margin-top: var(--space-2);
}

.jib-exp-item {
  display: flex;
  gap: var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
  padding: var(--space-1-5) 0;
  font-size: 14px;
  align-items: baseline;
}

.jib-exp-item:first-child {
  padding-top: 0;
}

.jib-exp-item:last-child {
  border-bottom: none;
}

.jib-exp-date {
  width: 110px;
  flex-shrink: 0;
  white-space: nowrap;
  color: var(--ink-secondary);
  font-size: 14px;
}

.jib-exp-role-wrap {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  min-width: 0;
  flex-wrap: wrap;
}

.jib-exp-role {
  color: var(--ink);
  font-weight: 600;
}

.jib-exp-org {
  color: var(--ink-tertiary);
  font-size: 13px;
}

.jib-sub-list {
  list-style: none;
  margin-top: var(--space-1-5);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.jib-sub-item {
  font-size: 14px;
  color: var(--ink-secondary);
}

.timeline-title {
  font-weight: 600;
  color: var(--ink);
}

.timeline-org {
  font-size: 12px;
  color: var(--ink-secondary);
}

/* 底部联系区 */
.footer-section {
  padding: 0 0 var(--space-8) 0;
  border-top: none;
}

.footer-box {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer-content-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  max-width: 520px;
}

.footer-title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.footer-desc {
  color: var(--ink-secondary);
  font-size: 14.5px;
  line-height: 1.6;
}

.footer-actions {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .footer-box {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2-5);
  }
}

.footer-meta-bar {
  margin-top: var(--space-6);
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--ink-tertiary);
}

.footer-meta-bar .btn-text-link {
  padding: 0;
  font-size: 12px;
}

/* ==========================================================================
   5. 响应式布局 (Responsive Breakpoints)
   ========================================================================== */

@media (max-width: 768px) {
  .split-section {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    margin-bottom: var(--space-7);
  }
  .hero-section {
    padding-top: var(--space-12);
    padding-bottom: var(--space-6);
  }
  .fixed-corner-logo {
    top: var(--space-2);
    left: var(--space-2);
  }
  .fixed-top-controls {
    top: var(--space-2);
    right: var(--space-2);
  }
  .jib-experiences-section {
    margin-bottom: var(--space-6);
  }
  .jib-exp-item {
    gap: var(--space-2);
  }
  .layout-container {
    width: min(var(--container-max-width), calc(100% - var(--space-4)));
  }
}

/* ==========================================================================
   6. 页面转场白场幕布与渐进式级联登场动效 (Page Transition & Staggered Cascade)
   ========================================================================== */

.page-transition-curtain {
  position: fixed;
  inset: 0;
  z-index: 9999999;
  background-color: var(--bg);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.38s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity;
}

.page-transition-curtain.is-active {
  opacity: 1;
  pointer-events: auto;
}

/* 渐进式逐级浮现 (Progressive Staggered Reveal) */
.stagger-item {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.62s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.62s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

body.is-loaded .stagger-item {
  opacity: 1;
  transform: translateY(0);
}

/* 延迟阶梯 (Stagger Delays) */
body.is-loaded .stagger-delay-1  { transition-delay: 0.04s; }
body.is-loaded .stagger-delay-2  { transition-delay: 0.09s; }
body.is-loaded .stagger-delay-3  { transition-delay: 0.15s; }
body.is-loaded .stagger-delay-4  { transition-delay: 0.20s; }
body.is-loaded .stagger-delay-5  { transition-delay: 0.26s; }
body.is-loaded .stagger-delay-6  { transition-delay: 0.32s; }
body.is-loaded .stagger-delay-7  { transition-delay: 0.38s; }
body.is-loaded .stagger-delay-8  { transition-delay: 0.44s; }
body.is-loaded .stagger-delay-9  { transition-delay: 0.50s; }
body.is-loaded .stagger-delay-10 { transition-delay: 0.56s; }
body.is-loaded .stagger-delay-11 { transition-delay: 0.62s; }
body.is-loaded .stagger-delay-12 { transition-delay: 0.68s; }

/* ==========================================================================
   7. 项目列表独立页面样式 (Projects Archive Page)
   ========================================================================== */

.projects-page-container {
  width: min(var(--container-wide-max-width), calc(100% - var(--space-6)));
  margin: 0 auto;
  padding: var(--space-6) 0 var(--space-12);
}

@media (max-width: 768px) {
  .projects-page-container {
    width: min(var(--container-wide-max-width), calc(100% - var(--space-4)));
    padding: var(--space-4) 0 var(--space-8);
  }
}

/* 顶部导航与返回条 */
.projects-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-2-5);
  border-bottom: 1px solid var(--border-subtle);
}

.btn-back-home {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 6px var(--space-1-5);
  background-color: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  color: var(--ink);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--duration-fast) ease;
}

.btn-back-home:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateX(-2px);
}

.btn-back-home .back-arrow {
  display: inline-block;
  transition: transform var(--duration-fast) var(--ease-spring);
}

.btn-back-home:hover .back-arrow {
  transform: translateX(-4px);
}

.projects-hero-intro {
  margin-bottom: var(--space-5);
}

.projects-hero-title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-1);
  color: var(--ink);
}

.projects-hero-sub {
  font-size: 14.5px;
  color: var(--ink-secondary);
  line-height: 1.6;
  max-width: 100%;
  white-space: normal;
}

@media (min-width: 840px) {
  .projects-hero-sub {
    white-space: nowrap;
  }
}

/* 2列项目网格布局 (Clean 2-Column Shot-Well Grid) */
.projects-grid-2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2-5);
  padding-top: var(--space-1);
  padding-bottom: var(--space-3);
}

@media (max-width: 860px) {
  .projects-grid-2col {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
}

.projects-grid-2col .shotwell-card {
  width: 100%;
  flex-shrink: 1;
  cursor: default;
}

.projects-grid-2col .shotwell-card[data-project-url] {
  cursor: pointer;
}

/* 消除入场瀑布流对 3D 实时插值的 transition 干扰 */
body.is-loaded .projects-grid-2col .shotwell-card.stagger-item {
  transition: opacity 0.62s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.25s ease, box-shadow 0.3s ease;
}

/* 列表与详情页底部公共栏 */
.projects-footer {
  margin-top: var(--space-9);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--ink-tertiary);
  flex-wrap: wrap;
  gap: var(--space-2);
}

.projects-footer .btn-back-home {
  padding: 4px var(--space-1-5);
  font-size: 12px;
}

/* ==========================================================================
   8. 作品详情页样式 (Project Detail Page — Stacked Image Placeholders)
   ========================================================================== */

.detail-page-container {
  width: min(var(--container-wide-max-width), calc(100% - var(--space-6)));
  margin: 0 auto;
  padding: var(--space-6) 0 var(--space-12);
}

@media (max-width: 768px) {
  .detail-page-container {
    width: min(var(--container-wide-max-width), calc(100% - var(--space-4)));
    padding: var(--space-4) 0 var(--space-8);
  }
}

.detail-images-stack {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: var(--space-2);
  border-radius: 0;
}

/* ==========================================================================
   Skeleton 骨架屏系统 (Skeleton Shimmer System)
   ========================================================================== */
@keyframes skeleton-shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

@keyframes skeleton-pulse {
  0%, 100% {
    opacity: 0.7;
  }
  50% {
    opacity: 0.3;
  }
}

.detail-image-placeholder {
  width: 100%;
  border-radius: 0;
  overflow: hidden;
  position: relative;
  display: block;
  box-shadow: none;
  background-color: rgba(0, 0, 0, 0.03);
  margin: 0;
  padding: 0;
  line-height: 0;
  font-size: 0;
  min-height: 480px;
}

/* 消除高分屏/缩放时浏览器亚像素 (Sub-pixel) 渲染导致的 0.5px 露白微缝 */
.detail-image-placeholder + .detail-image-placeholder {
  margin-top: -1.5px;
}

/* 骨架屏流动扫光伪元素 */
.detail-image-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.55) 50%,
    transparent 100%
  );
  transform: translateX(-100%);
  animation: skeleton-shimmer 1.8s infinite cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  z-index: 1;
  transition: opacity 0.36s ease;
}

[data-theme="dark"] .detail-image-placeholder {
  background-color: rgba(255, 255, 255, 0.04);
}

[data-theme="dark"] .detail-image-placeholder::before {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.08) 50%,
    transparent 100%
  );
}

/* 当图片/视频加载完成后，淡出骨架屏并恢复自适应高度 */
.detail-image-placeholder.is-loaded {
  min-height: unset;
  background-color: transparent;
}

.detail-image-placeholder.is-loaded::before {
  opacity: 0;
  animation: none;
  visibility: hidden;
}

.detail-image-placeholder img,
.detail-stream-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 0;
  margin: 0;
  padding: 0;
  border: none;
  vertical-align: bottom;
  opacity: 0;
  position: relative;
  z-index: 2;
  transition: opacity 0.38s cubic-bezier(0.16, 1, 0.3, 1);
}

.detail-image-placeholder video,
.detail-stream-video {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 0;
  margin: 0;
  padding: 0;
  border: none;
  vertical-align: bottom;
  background: transparent;
  opacity: 1;
  position: relative;
  z-index: 2;
}

.detail-image-placeholder img.is-loaded,
.detail-stream-img.is-loaded,
.detail-image-placeholder video.is-loaded,
.detail-stream-video.is-loaded {
  opacity: 1;
}



.footer-email-btn {
  background: none;
  border: none;
  font-family: inherit;
  font-size: 12px;
  color: var(--ink-tertiary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--space-0-5);
  padding: var(--space-0-5) var(--space-1);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) ease, background-color var(--duration-fast) ease;
}

.footer-email-btn:hover {
  color: var(--ink) !important;
  background-color: var(--border-subtle);
}

/* 浮动返回顶部按钮 (极简胶囊/圆角小箭头形态，滑动到第二屏时平滑浮现) */
.back-to-top-btn {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 9999px;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.03);
  color: var(--ink);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.92);
  transition: opacity 0.32s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.32s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.32s ease,
              background-color 0.2s ease,
              color 0.2s ease,
              border-color 0.2s ease,
              box-shadow 0.25s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.back-to-top-btn svg {
  width: 17px;
  height: 17px;
  stroke-width: 2;
  transition: transform 0.22s var(--ease-spring);
}

.back-to-top-btn.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.back-to-top-btn:hover {
  color: var(--ink);
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1), 0 2px 6px rgba(0, 0, 0, 0.04);
  transform: translateY(-2px) scale(1.04);
}

.back-to-top-btn:hover svg {
  transform: translateY(-2px);
}

.back-to-top-btn:active {
  transform: translateY(0) scale(0.96);
}

[data-theme="dark"] .back-to-top-btn {
  background: rgba(28, 28, 30, 0.88);
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.5), 0 1px 4px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .back-to-top-btn:hover {
  background: rgba(40, 40, 44, 0.95);
  border-color: rgba(255, 255, 255, 0.26);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
}

@media (max-width: 640px) {
  .back-to-top-btn {
    bottom: 20px;
    right: 18px;
    width: 38px;
    height: 38px;
  }
  .back-to-top-btn svg {
    width: 15px;
    height: 15px;
  }
}

/* ==========================================================================
   详情页底部「其他项目」推荐板块 (More Projects Grid)
   ========================================================================== */
.detail-more-projects-section {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-subtle);
}

.more-projects-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.more-projects-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.more-projects-badge::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.more-projects-view-all {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-tertiary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.more-projects-view-all:hover {
  color: var(--ink);
}

.more-projects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2-5);
}

@media (max-width: 1040px) {
  .more-projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
  }
}

@media (max-width: 580px) {
  .more-projects-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
}

.more-projects-grid .shotwell-card {
  width: 100%;
  flex-shrink: 1;
  padding: 14px;
}

@media (min-width: 640px) {
  .more-projects-grid .shotwell-card {
    padding: 16px;
  }
}

@media (min-width: 1200px) {
  .more-projects-grid .shotwell-card {
    padding: 18px;
  }
}

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

.card-meta-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11.5px;
  font-family: var(--font-mono);
  color: var(--ink-tertiary);
}

.card-category-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-0-5);
  color: var(--accent);
  font-weight: 500;
}

.card-project-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.card-project-desc {
  font-size: 13.5px;
  color: var(--ink-secondary);
  line-height: 1.55;
}

.card-artboard-preview {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  padding: 14px;
  min-height: 130px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.card-tags-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: auto;
}

.stack-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  padding: 2px 7px;
  border-radius: 4px;
  background-color: var(--bg-card-subtle);
  color: var(--ink-secondary);
  border: 1px solid var(--border-subtle);
}

.card-action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-1-5);
  border-top: 1px solid var(--border-subtle);
}

.card-date-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-tertiary);
}

.btn-card-explore {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-0-5) 0;
  transition: color var(--duration-fast) ease;
}

.btn-card-explore:hover {
  color: var(--accent);
}

.btn-card-explore .explore-arrow {
  transition: transform var(--duration-fast) var(--ease-spring);
}

.btn-card-explore:hover .explore-arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   全局轻量提示 (Global Floating Toast Notification)
   ========================================================================== */
.global-toast {
  position: fixed;
  top: var(--space-3);
  left: 50%;
  transform: translateX(-50%);
  z-index: 999999;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px var(--space-2-5);
  background: var(--bg-card);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 500;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-medium);
  box-shadow: 0 12px 32px -4px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.04);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  pointer-events: auto;
  user-select: none;
}

.global-toast.toast-show {
  animation: toastIn 0.32s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.global-toast.toast-hide {
  animation: toastOut 0.24s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 197, 94, 0.14);
  color: #16a34a;
  flex-shrink: 0;
}

[data-theme="dark"] .toast-icon {
  background: rgba(34, 197, 94, 0.2);
  color: #4ade80;
}

.toast-text {
  line-height: 1.4;
  white-space: nowrap;
}

.toast-email-val {
  font-family: var(--font-mono);
  font-size: 12.5px;
  opacity: 0.8;
  margin-left: 2px;
}

@keyframes toastIn {
  0% {
    opacity: 0;
    transform: translate(-50%, -16px) scale(0.96);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, 0) scale(1);
  }
}

@keyframes toastOut {
  0% {
    opacity: 1;
    transform: translate(-50%, 0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -12px) scale(0.96);
  }
}

/* ==========================================================================
   10. 图标微动效外层大盒子 (#EBF4FB 浅蓝底板 · 白色 16:9 卡片画廊 · 无圆角无投影无缝堆叠)
   ========================================================================== */
.icon-showcase-container {
  width: 100%;
  background: #EBF4FB;
  border-radius: 0;
  border: none;
  padding: 0 58px;
  margin: 0;
  box-shadow: none;
  box-sizing: border-box;
}

[data-theme="dark"] .icon-showcase-container {
  background: #EBF4FB;
  border: none;
  box-shadow: none;
}

@media (max-width: 960px) {
  .icon-showcase-container {
    padding: 0 32px;
    border-radius: 0;
  }
}

@media (max-width: 768px) {
  .icon-showcase-container {
    padding: 0 20px;
    border-radius: 0;
  }
}

.icon-motion-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 0;
  align-items: center;
}

@media (max-width: 960px) {
  .icon-motion-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (max-width: 580px) {
  .icon-motion-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

.icon-motion-card {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #ffffff;
  border-radius: 8px;
  border: none;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: none;
  transition: transform 0.24s var(--ease-spring);
}

[data-theme="dark"] .icon-motion-card {
  background: #ffffff;
  border: none;
  box-shadow: none;
}

.icon-motion-card:hover {
  transform: translateY(-3px);
  box-shadow: none;
}

[data-theme="dark"] .icon-motion-card:hover {
  transform: translateY(-3px);
  box-shadow: none;
}

.icon-motion-artboard {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  position: relative;
  overflow: hidden;
  border-radius: inherit;
}

.icon-motion-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
  border-radius: inherit;
  mix-blend-mode: multiply;
}

.icon-motion-card.is-placeholder {
  display: none;
}

.icon-motion-card.is-placeholder:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--border-subtle);
}

.icon-placeholder-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  color: var(--ink-tertiary);
  font-family: var(--font-mono);
  font-size: 11px;
}

.icon-placeholder-plus {
  font-size: 20px;
  line-height: 1;
  opacity: 0.5;
}

/* ==========================================================================
   项目 6 专属 4 格 2x2 蓝底微动效封面组件 (Quad Motion Icon 2x2 Cover)
   ========================================================================== */
.icon-cover-quad-artboard {
  background: #386ED1 !important;
  display: flex !important;
  align-items: center;
  justify-content: center;
  padding: 10px;
  width: 100%;
  height: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.icon-cover-quad-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 8px;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
}

.icon-cover-quad-item {
  width: 100%;
  height: 100%;
  background: #ffffff;
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.icon-cover-quad-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
  mix-blend-mode: multiply;
}