/* ==========================================================================
   vision.css — 嘉Jaykou工具台 视觉层
   设计目标：Awwwards / FWA 级别的排版张力与物理动效
   约束：纯静态、离线可用、不引入任何外链资源、尊重系统 prefers-reduced-motion
   这套样式是「增强层」：叠加在原有 main.css 之上，不改动任何结构与功能
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计令牌
   -------------------------------------------------------------------------- */
:root {
  /* 流体排版：中文用系统黑体，拉丁/数字用 Azeret 做出实验感 */
  --v-font-display: "Azeret", "GeistSans", -apple-system, BlinkMacSystemFont,
    "PingFang SC", "Microsoft YaHei", sans-serif;
  --v-font-body: var(--font-geist-sans), -apple-system, BlinkMacSystemFont,
    "PingFang SC", "Microsoft YaHei", sans-serif;
  --v-font-mono: "GeistMono", "Google Sans Code", ui-monospace, SFMono-Regular,
    Menlo, monospace;

  /* 字号阶梯 */
  --v-fs-mega: clamp(5rem, 19vw, 17rem);
  --v-fs-h1: clamp(2.1rem, 5.6vw, 4.6rem);
  --v-fs-h2: clamp(1.35rem, 2.6vw, 2.1rem);
  --v-fs-lead: clamp(1rem, 1.35vw, 1.3rem);
  --v-fs-micro: clamp(0.66rem, 0.8vw, 0.76rem);

  /* 物理动效曲线 */
  --v-ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --v-ease-expo: cubic-bezier(0.19, 1, 0.22, 1);
  --v-ease-back: cubic-bezier(0.34, 1.56, 0.64, 1);
  --v-dur-fast: 260ms;
  --v-dur-base: 520ms;
  --v-dur-slow: 900ms;

  /* 画布层 */
  --v-grid-line: hsl(var(--foreground) / 0.055);
  --v-glow-a: hsl(var(--primary) / 0.5);
  --v-glow-b: hsl(calc(var(--primary-h, 221) + 60) 90% 60% / 0.35);
  --v-noise: 0.032;

  /* 层级 */
  --v-z-canvas: 0;
  --v-z-content: 1;
}

/* 深色主题下光晕更浓、网格更亮 */
.dark {
  --v-grid-line: hsl(0 0% 100% / 0.07);
  --v-glow-a: hsl(var(--primary) / 0.62);
  --v-noise: 0.05;
}

/* --------------------------------------------------------------------------
   2. 全局基底
   -------------------------------------------------------------------------- */
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--v-font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern" 1, "liga" 1, "cv11" 1;
}

/* 选择态：品牌色而非浏览器默认蓝 */
::selection {
  background: hsl(var(--primary) / 0.24);
  color: hsl(var(--foreground));
}

/* 焦点环：只在键盘导航时出现，鼠标点击不打扰 */
:focus-visible {
  outline: 2px solid hsl(var(--primary));
  outline-offset: 3px;
  border-radius: 4px;
}

/* --------------------------------------------------------------------------
   3. 画布：网格 + 噪点 + 光晕
   任何元素加 .v-canvas 即可获得这三层背景
   -------------------------------------------------------------------------- */
.v-canvas {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.v-canvas::before {
  content: "";
  position: absolute;
  inset: -2px;
  z-index: var(--v-z-canvas);
  pointer-events: none;
  background-image: linear-gradient(var(--v-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--v-grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 78%);
}

/* 噪点：内联 SVG，零请求、离线可用 */
.v-canvas::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: var(--v-z-canvas);
  pointer-events: none;
  opacity: var(--v-noise);
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* 光晕：跟随鼠标的柔光，位置由 vision.js 写入 --v-mx / --v-my */
.v-glow {
  position: absolute;
  z-index: var(--v-z-canvas);
  pointer-events: none;
  left: var(--v-mx, 50%);
  top: var(--v-my, 0%);
  width: min(78vw, 900px);
  aspect-ratio: 1;
  translate: -50% -50%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--v-glow-a) 0%, transparent 62%);
  filter: blur(48px);
  opacity: 0.72;
  transition: opacity var(--v-dur-base) var(--v-ease-expo);
}

.v-glow--b {
  background: radial-gradient(circle, var(--v-glow-b) 0%, transparent 66%);
  filter: blur(72px);
  width: min(92vw, 1100px);
  opacity: 0.5;
}

/* --------------------------------------------------------------------------
   4. 排版：实验性大字
   -------------------------------------------------------------------------- */
.v-mega {
  font-family: var(--v-font-display);
  font-size: var(--v-fs-mega);
  font-weight: 800;
  line-height: 0.78;
  letter-spacing: -0.06em;
  font-variant-numeric: tabular-nums;
  display: block;
  background: linear-gradient(
    168deg,
    hsl(var(--foreground)) 8%,
    hsl(var(--foreground) / 0.62) 52%,
    hsl(var(--primary)) 108%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

/* 描边空心字：与实心数字错位叠放，制造版式纵深 */
.v-hero__lockup {
  position: relative;
  display: flex;
  align-items: flex-end;
  gap: clamp(0.5rem, 2vw, 1.6rem);
}

.v-mega-outline {
  font-family: var(--v-font-display);
  font-size: calc(var(--v-fs-mega) * 0.5);
  font-weight: 800;
  line-height: 0.8;
  letter-spacing: -0.03em;
  color: transparent;
  -webkit-text-stroke: 1.5px hsl(var(--foreground) / 0.26);
  user-select: none;
  transform: translateY(-0.08em);
}

/* 旋转圆环徽章 */
.v-orbit {
  position: relative;
  width: clamp(108px, 11vw, 150px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.v-orbit__ring {
  position: absolute;
  inset: 0;
  animation: v-spin 14s linear infinite;
}

.v-orbit__ring text {
  font-family: var(--v-font-mono);
  font-size: 10.5px;
  letter-spacing: 0.32em;
  fill: hsl(var(--muted-foreground));
  text-transform: uppercase;
}

.v-orbit__ic {
  display: grid;
  place-items: center;
  width: 44%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: hsl(var(--card));
  border: 1px solid hsl(var(--border));
  color: hsl(var(--primary));
  box-shadow: 0 10px 30px -14px hsl(var(--primary) / 0.55);
}

.v-orbit__ic svg {
  width: 38%;
  height: 38%;
}

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

.v-hero__side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.4rem;
}

.v-h1 {
  font-size: var(--v-fs-h1);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.v-lead {
  font-size: var(--v-fs-lead);
  line-height: 1.62;
  color: hsl(var(--muted-foreground));
  max-width: 46ch;
  text-wrap: pretty;
}

/* 竖排小标签：给中文标题加一个垂直的英文注记，制造排版层次 */
.v-vertical-tag {
  writing-mode: vertical-rl;
  font-family: var(--v-font-mono);
  font-size: var(--v-fs-micro);
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: hsl(var(--muted-foreground));
  opacity: 0.72;
}

/* 编号标记：分类前的 01 / 02 */
.v-index {
  font-family: var(--v-font-mono);
  font-size: var(--v-fs-micro);
  letter-spacing: 0.22em;
  color: hsl(var(--primary));
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------------------------------------
   5. 入场动效（vision.js 负责加 is-in）
   -------------------------------------------------------------------------- */
.v-reveal {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition: opacity var(--v-dur-slow) var(--v-ease-expo),
    transform var(--v-dur-slow) var(--v-ease-spring);
  transition-delay: var(--v-delay, 0ms);
  will-change: opacity, transform;
}

.v-reveal.is-in {
  opacity: 1;
  transform: none;
}

/* 逐字入场：每个字符由 vision.js 包进 <span class="v-char"> */
.v-split .v-char {
  display: inline-block;
  opacity: 0;
  transform: translate3d(0, 0.72em, 0) rotate(4deg);
  transition: opacity 620ms var(--v-ease-expo),
    transform 780ms var(--v-ease-spring);
  transition-delay: calc(var(--v-i, 0) * 34ms + var(--v-delay, 0ms));
  will-change: opacity, transform;
}

.v-split.is-in .v-char {
  opacity: 1;
  transform: none;
}

/* 词级入场，用于长句 */
.v-split-w .v-word {
  display: inline-block;
  opacity: 0;
  transform: translate3d(0, 0.42em, 0);
  transition: opacity 520ms var(--v-ease-expo),
    transform 620ms var(--v-ease-spring);
  transition-delay: calc(var(--v-i, 0) * 26ms + var(--v-delay, 0ms));
}

.v-split-w.is-in .v-word {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   6. 磁吸与物理反馈
   -------------------------------------------------------------------------- */
.v-magnetic {
  transition: transform 420ms var(--v-ease-spring),
    box-shadow 420ms var(--v-ease-expo);
  will-change: transform;
}

.v-magnetic:hover {
  box-shadow: 0 18px 48px -20px hsl(var(--foreground) / 0.28);
}

/* 卡片：3D 倾斜由 JS 写入 --v-rx / --v-ry */
.v-tilt {
  transform: perspective(760px) rotateX(var(--v-rx, 0deg)) rotateY(var(--v-ry, 0deg))
    translate3d(0, var(--v-lift, 0px), 0);
  transform-style: preserve-3d;
  transition: transform 320ms var(--v-ease-spring),
    box-shadow 320ms var(--v-ease-expo),
    border-color 320ms var(--v-ease-expo);
}

.v-tilt:hover {
  border-color: hsl(var(--primary) / 0.5);
  box-shadow: 0 22px 54px -24px hsl(var(--primary) / 0.42);
}

/* 边框流光：hover 时一道光沿边框扫过 */
.v-sheen {
  position: relative;
  overflow: hidden;
}

.v-sheen::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    105deg,
    transparent 32%,
    hsl(var(--foreground) / 0.11) 48%,
    transparent 64%
  );
  translate: -120% 0;
  transition: translate 900ms var(--v-ease-expo);
}

.v-sheen:hover::after {
  translate: 120% 0;
}

/* --------------------------------------------------------------------------
   7. 首屏 Hero
   -------------------------------------------------------------------------- */
.v-hero {
  position: relative;
  padding: clamp(3.4rem, 9vh, 7.5rem) 0 clamp(2.6rem, 6vh, 5rem);
  min-height: min(88vh, 860px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.v-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(1.2rem, 3vw, 3rem);
  align-items: end;
}

.v-hero__title {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.1em;
}

.v-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1.1rem;
  margin-top: clamp(1.4rem, 3vh, 2.4rem);
}

/* 徽章：胶囊 + 呼吸光点 */
.v-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.42rem 0.95rem;
  border-radius: 999px;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card) / 0.72);
  backdrop-filter: blur(12px);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.v-badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: hsl(var(--primary));
  box-shadow: 0 0 0 0 hsl(var(--primary) / 0.55);
  animation: v-pulse 2.6s var(--v-ease-expo) infinite;
}

@keyframes v-pulse {
  0% { box-shadow: 0 0 0 0 hsl(var(--primary) / 0.5); }
  70% { box-shadow: 0 0 0 9px hsl(var(--primary) / 0); }
  100% { box-shadow: 0 0 0 0 hsl(var(--primary) / 0); }
}

/* 指标组：490 / 17 / 0 这类数字 */
.v-stats {
  display: flex;
  gap: clamp(1.4rem, 4vw, 3.4rem);
  margin-top: clamp(1.6rem, 4vh, 2.8rem);
  flex-wrap: wrap;
}

.v-stat__num {
  font-family: var(--v-font-display);
  font-size: clamp(1.5rem, 3.1vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  display: block;
}

.v-stat__label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: hsl(var(--muted-foreground));
}

/* 滚动提示 */
.v-scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: auto;
  padding-top: clamp(1.6rem, 4vh, 3rem);
  font-family: var(--v-font-mono);
  font-size: var(--v-fs-micro);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: hsl(var(--muted-foreground));
}

.v-scroll-cue__line {
  display: block;
  width: 46px;
  height: 1px;
  background: hsl(var(--border));
  position: relative;
  overflow: hidden;
}

.v-scroll-cue__line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: hsl(var(--primary));
  animation: v-sweep 2.4s var(--v-ease-expo) infinite;
}

@keyframes v-sweep {
  0% { transform: translateX(-100%); }
  60%, 100% { transform: translateX(100%); }
}

/* --------------------------------------------------------------------------
   8. 分类区块
   -------------------------------------------------------------------------- */
.v-section {
  scroll-margin-top: 5.5rem;
}

.v-section__head {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  margin-bottom: 1.1rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid hsl(var(--border));
}

.v-section__title {
  font-size: var(--v-fs-h2);
  font-weight: 650;
  letter-spacing: -0.028em;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

/* 分类图标容器：给 Lucide 图标一个统一的品牌底 */
.v-ic {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(140deg, var(--c1, hsl(var(--primary) / 0.9)), var(--c2, hsl(var(--primary))));
  color: #fff;
  flex: none;
  box-shadow: 0 6px 18px -8px var(--c2, hsl(var(--primary) / 0.6));
}

.v-ic svg {
  width: 17px;
  height: 17px;
}

.v-count {
  font-family: var(--v-font-mono);
  font-size: 0.78rem;
  color: hsl(var(--muted-foreground));
  font-variant-numeric: tabular-nums;
}

/* 工具卡片网格：密度更高、圆角更小、hover 有物理感 */
.v-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(196px, 1fr));
  gap: 0.7rem;
}

.v-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.7rem 0.85rem;
  border-radius: 11px;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card));
  color: inherit;
  text-decoration: none;
  overflow: hidden;
  transition: transform 320ms var(--v-ease-spring),
    border-color 320ms var(--v-ease-expo),
    background 320ms var(--v-ease-expo);
}

.v-card:hover {
  transform: translateY(-2px);
  border-color: hsl(var(--primary) / 0.45);
  background: hsl(var(--primary) / 0.045);
}

.v-card__ic {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 7px;
  background: hsl(var(--foreground) / 0.055);
  color: hsl(var(--foreground) / 0.72);
  flex: none;
  transition: background 320ms var(--v-ease-expo), color 320ms var(--v-ease-expo);
}

.v-card:hover .v-card__ic {
  background: hsl(var(--primary));
  color: #fff;
}

.v-card__ic svg {
  width: 14px;
  height: 14px;
}

.v-card__name {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: -0.012em;
  line-height: 1.25;
}

.v-card__desc {
  font-size: 0.72rem;
  color: hsl(var(--muted-foreground));
  line-height: 1.35;
  margin-top: 0.1rem;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 卡片内的箭头：hover 时滑入 */
.v-card__arrow {
  margin-left: auto;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 320ms var(--v-ease-expo), transform 320ms var(--v-ease-spring);
  color: hsl(var(--primary));
  flex: none;
}

.v-card:hover .v-card__arrow {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   9. 光标跟随光晕（桌面端）
   -------------------------------------------------------------------------- */
.v-cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 60;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  pointer-events: none;
  translate: -50% -50%;
  background: radial-gradient(circle, hsl(var(--primary) / 0.13), transparent 66%);
  filter: blur(20px);
  opacity: 0;
  transition: opacity 420ms var(--v-ease-expo);
  mix-blend-mode: normal;
}

.v-cursor.is-on {
  opacity: 1;
}

/* --------------------------------------------------------------------------
   10. 降级：尊重系统减少动效设置
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .v-reveal,
  .v-split .v-char,
  .v-split-w .v-word {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .v-tilt {
    transform: none !important;
  }
  .v-badge__dot,
  .v-scroll-cue__line::after,
  .v-orbit__ring {
    animation: none !important;
  }
  .v-cursor,
  .v-glow {
    display: none;
  }
  .v-sheen::after {
    display: none;
  }
}

/* 触屏设备不做磁吸与倾斜，避免粘滞感 */
@media (hover: none) {
  .v-tilt {
    transform: none !important;
  }
  .v-cursor {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   11. 移动端收敛
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
  :root {
    --v-fs-mega: clamp(4rem, 26vw, 8rem);
  }
  .v-hero {
    min-height: auto;
  }
  .v-hero__grid {
    grid-template-columns: 1fr;
    align-items: start;
  }
  .v-vertical-tag {
    display: none;
  }
  .v-grid {
    grid-template-columns: repeat(auto-fill, minmax(158px, 1fr));
  }
  .v-stats {
    gap: 1.2rem 1.8rem;
  }
}