/* =============================================================
   陈泽 · 个人作品集
   设计语言：深夜编辑器暗色画布 + 荧光黄绿单一强调色
   字体：英文 DIN 风格（Bahnschrift / DIN Alternate），中文苹方 / 雅黑
   ============================================================= */

/* ---------------- 1. 设计 Token ---------------- */
:root {
  /* 色彩 */
  --bg: #050507;               /* 主背景 */
  --bg-2: #0b1114;             /* 次背景（区块交替） */
  --surface: #0e161b;          /* 面板 */
  --ink: #f7fbfc;              /* 主文字 */
  --ink-dim: rgba(247, 251, 252, .62);
  --ink-faint: rgba(247, 251, 252, .38);
  --accent: #c9ff1a;           /* 荧光黄绿 */
  --accent-soft: rgba(201, 255, 26, .12);
  --accent-line: rgba(201, 255, 26, .45);
  --line: rgba(255, 255, 255, .10);
  --line-strong: rgba(255, 255, 255, .18);

  /* 字体 */
  --font-display: "Bahnschrift", "Bahnschrift SemiCondensed", "DIN Alternate", "DIN Condensed",
                  "Roboto Condensed", "Arial Narrow", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  /* 尺寸与动效 */
  --header-h: 72px;
  --container: 1240px;
  --radius: 20px;
  --ease-out: cubic-bezier(.22, 1, .36, 1);
}

/* ---------------- 2. 基础重置 ---------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  /* 锚点跳转时为固定导航预留高度 */
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 弹窗打开时锁定背景滚动 */
body.is-locked { overflow: hidden; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: var(--accent); color: #0a110d; }

/* 细滚动条（WebKit） */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #1d2730; border-radius: 99px; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #2a3844; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 64px);
}

.section { padding-block: clamp(80px, 11vw, 150px); position: relative; }
.section--dim,
.career, .skills { background: var(--bg-2); }

/* ---------------- 3. 通用：区块标题 ---------------- */
.section-head { margin-bottom: clamp(40px, 6vw, 72px); }

.section-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .28em;
  color: var(--accent);
  margin-bottom: 14px;
}
.section-kicker span {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  height: 22px;
  border: 1px solid var(--accent-line);
  border-radius: 99px;
  font-size: 10px;
  letter-spacing: .1em;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(34px, 5.2vw, 64px);
  line-height: 1.05;
  letter-spacing: -.01em;
}
.section-title i {
  font-style: normal;
  color: var(--accent);
  font-size: .55em;
  margin-left: 10px;
  transition: transform .35s var(--ease-out);
}
.section-head:hover .section-title i { transform: translate(4px, -4px); }

/* ---------------- 4. 通用：按钮 / 标签 ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  white-space: nowrap;
  transition: transform .3s var(--ease-out), background .3s, color .3s,
              border-color .3s, box-shadow .3s;
}
.btn span { transition: transform .3s var(--ease-out); }
.btn:hover { transform: translateY(-2px); }
.btn:hover span { transform: translate(3px, -3px); }

.btn--accent {
  background: var(--accent);
  color: #0a110d;
  box-shadow: 0 10px 30px rgba(201, 255, 26, .18);
}
.btn--accent:hover { box-shadow: 0 16px 40px rgba(201, 255, 26, .32); }

.btn--ghost {
  border: 1px solid var(--line-strong);
  color: var(--ink);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

.btn .icon { width: 17px; height: 17px; fill: currentColor; }
.btn .icon--gh { transition: transform .3s var(--ease-out); }
.btn:hover .icon--gh { transform: translateY(-1px) rotate(-6deg); }

/* 技术标签（小胶囊） */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}
.tag-list li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--ink-dim);
  padding: 6px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: color .25s, border-color .25s, background .25s;
}
.tag-list li:hover { color: var(--accent); border-color: var(--accent-line); background: var(--accent-soft); }

/* 荣誉胶囊（实心描边风格） */
.chip-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.chip-list li {
  font-size: 13px;
  color: var(--ink-dim);
  padding: 8px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: all .3s var(--ease-out);
}
.chip-list li::before { content: "✦ "; color: var(--accent); font-size: 10px; }
.chip-list li:hover { color: var(--ink); border-color: var(--accent-line); transform: translateY(-2px); }

/* ---------------- 4.5 粒子扰动画布（背景层） ---------------- */
#fx-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;   /* 不拦截鼠标 / 触摸，保证原有交互不受影响 */
}

/* 将页面主内容与页脚提升到粒子层之上，保持层级兼容 */
main,
.site-footer {
  position: relative;
  z-index: 1;
}

/* ---------------- 5. 顶部滚动进度条 ---------------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent);
  transform-origin: 0 50%;
  transform: scaleX(0);
  z-index: 200;
}

/* ---------------- 6. 导航栏 ---------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background .35s, border-color .35s, backdrop-filter .35s;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(5, 5, 7, .72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}

.header-inner {
  max-width: var(--container);
  height: var(--header-h);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 64px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* 品牌 */
.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand-monogram {
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  border-radius: 11px;
  background: var(--accent);
  color: #0a110d;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .02em;
  box-shadow: 0 0 22px rgba(201, 255, 26, .25);
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: .06em;
}
.brand-name em { font-style: normal; color: var(--accent); font-size: .7em; vertical-align: super; }

/* 桌面导航链接 */
.site-nav { display: flex; gap: 6px; }
.nav-link {
  position: relative;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--ink-dim);
  transition: color .25s;
}
.nav-link span {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-faint);
  margin-right: 5px;
  transition: color .25s;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .3s var(--ease-out);
}
.nav-link:hover, .nav-link.is-active { color: var(--ink); }
.nav-link:hover span, .nav-link.is-active span { color: var(--accent); }
.nav-link:hover::after, .nav-link.is-active::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.header-cta { padding: 10px 22px; font-size: 14px; }

/* 汉堡按钮（移动端） */
.nav-toggle {
  display: none;
  position: relative;
  width: 42px; height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}
.nav-toggle span {
  position: absolute;
  left: 11px;
  width: 18px; height: 2px;
  background: var(--ink);
  transition: transform .35s var(--ease-out), top .35s var(--ease-out), opacity .2s;
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 24px; }
.nav-toggle.is-open span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { top: 20px; transform: rotate(-45deg); }

/* 移动端全屏菜单 */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(5, 5, 7, .96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  padding: 40px clamp(28px, 8vw, 64px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .4s var(--ease-out), visibility .4s;
}
.mobile-menu.is-open { opacity: 1; visibility: visible; }
.mobile-nav-link {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-family: var(--font-display);
  font-size: clamp(30px, 9vw, 46px);
  font-weight: 300;
  color: var(--ink-dim);
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  transform: translateY(24px);
  transition: color .3s, transform .45s var(--ease-out);
}
.mobile-menu.is-open .mobile-nav-link { transform: translateY(0); }
.mobile-nav-link span { font-family: var(--font-mono); font-size: 13px; color: var(--accent); }
.mobile-nav-link:hover { color: var(--accent); }
.mobile-menu.is-open .mobile-nav-link:nth-child(1) { transition-delay: .06s; }
.mobile-menu.is-open .mobile-nav-link:nth-child(2) { transition-delay: .11s; }
.mobile-menu.is-open .mobile-nav-link:nth-child(3) { transition-delay: .16s; }
.mobile-menu.is-open .mobile-nav-link:nth-child(4) { transition-delay: .21s; }
.mobile-menu.is-open .mobile-nav-link:nth-child(5) { transition-delay: .26s; }
.mobile-menu-foot { margin-top: 40px; color: var(--ink-faint); font-size: 14px; }
.mobile-menu-foot a { color: var(--accent); }

/* ---------------- 7. HERO 首屏 ---------------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-h) + 40px) 0 0;
  overflow: hidden;
}

/* 背景层：网格 + 双光晕 */
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 75% at 50% 38%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 75% at 50% 38%, #000 30%, transparent 78%);
}
.hero-glow {
  position: absolute;
  width: 55vw; height: 55vw;
  max-width: 720px; max-height: 720px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .16;
}
.hero-glow--a { top: -18%; right: -10%; background: var(--accent); }
.hero-glow--b { bottom: -25%; left: -14%; background: #2b6cff; opacity: .12; }

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 64px);
  padding-bottom: clamp(120px, 18vh, 190px); /* 给跑马灯留位 */
  /* 桌面端：左侧文案 + 右侧 3D 校徽展区 双栏布局 */
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  grid-template-areas: "copy badge" "tail badge";
  align-items: center;
  column-gap: clamp(36px, 5vw, 72px);
}
.hero-copy { grid-area: copy; min-width: 0; }
.hero-copy--tail { grid-area: tail; min-width: 0; }
.hero-badge { grid-area: badge; min-width: 0; }

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--ink-dim);
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  margin-bottom: clamp(24px, 4vw, 40px);
}
.hero-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: blink 2.2s ease-in-out infinite;
}

.hero-title { margin-bottom: clamp(22px, 3vw, 34px); }
.hero-line {
  display: block;
  overflow: hidden;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(54px, 7.6vw, 108px); /* 左栏宽度下保持一行不折行 */
  line-height: .96;
  letter-spacing: -.015em;
  text-transform: uppercase;
}
.hero-line span { display: block; }
.hero-line--outline span {
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(247, 251, 252, .55);
}

.hero-sub {
  max-width: 560px;
  font-size: clamp(16px, 1.5vw, 19px);
  color: var(--ink-dim);
  line-height: 1.8;
}
.hero-sub em { font-style: normal; color: var(--ink-faint); font-size: .88em; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: clamp(28px, 4vw, 44px); }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: clamp(30px, 4vw, 46px);
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-faint);
}
.hero-meta li::before { content: "—  "; color: var(--accent); }

/* Hero 逐行入场：默认隐藏，JS 在 onload 后添加 .is-ready 触发 */
.hero [data-hero-line] span,
.hero [data-hero-line] { will-change: transform, opacity; }
.hero [data-hero-line] { opacity: 0; transform: translateY(34px); }
.hero .hero-line span { transform: translateY(110%); }
.is-ready .hero [data-hero-line] {
  opacity: 1;
  transform: translateY(0);
  transition: opacity .9s var(--ease-out), transform .9s var(--ease-out);
  transition-delay: var(--d, 0s);
}
.is-ready .hero .hero-line span {
  transform: translateY(0);
  transition: transform 1s var(--ease-out);
  transition-delay: var(--d, 0s);
}

/* 技能跑马灯 */
.marquee {
  position: absolute;
  z-index: 1;
  left: 0; right: 0; bottom: 0;
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, .015);
  overflow: hidden;
  padding-block: 16px;
}
.marquee__track {
  display: flex;
  align-items: center;
  width: max-content;
  animation: marquee 36s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee span {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(15px, 1.6vw, 20px);
  letter-spacing: .14em;
  color: var(--ink-faint);
  white-space: nowrap;
  transition: color .3s;
}
.marquee i {
  font-style: normal;
  color: var(--accent);
  font-size: 11px;
  margin-inline: clamp(16px, 2.2vw, 34px);
}

/* 滚动提示 */
.scroll-hint {
  position: absolute;
  z-index: 1;
  right: clamp(20px, 5vw, 64px);
  top: calc(var(--header-h) + 12px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .3em;
  color: var(--ink-faint);
  writing-mode: vertical-rl;
}
.scroll-hint__line {
  width: 1px; height: 52px;
  background: var(--line-strong);
  position: relative;
  overflow: hidden;
}
.scroll-hint__line::after {
  content: "";
  position: absolute;
  left: 0; top: -50%;
  width: 100%; height: 50%;
  background: var(--accent);
  animation: scrollLine 2s var(--ease-out) infinite;
}

/* ---------------- 8. ABOUT 关于我 ---------------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: clamp(36px, 5vw, 80px);
  align-items: start;
}

.about-portrait { position: sticky; top: calc(var(--header-h) + 32px); }
.portrait-frame {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 1;
  background: var(--surface);
}
.portrait-frame::after {
  /* 荧光偏移描边装饰 */
  content: "";
  position: absolute;
  inset: 14px -14px -14px 14px;
  border: 1px solid var(--accent-line);
  border-radius: var(--radius);
  z-index: -1;
  transition: inset .4s var(--ease-out);
}
.about-portrait:hover .portrait-frame::after { inset: 8px -8px -8px 8px; }
.portrait-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease-out); }
.about-portrait:hover .portrait-frame img { transform: scale(1.04); }

.portrait-badge {
  position: absolute;
  left: 16px; bottom: 16px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  border-radius: 999px;
  background: rgba(5, 5, 7, .75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--accent-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
}
.pulse-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(201, 255, 26, .6);
  animation: pulse 2s infinite;
}
.portrait-caption {
  margin-top: 22px;
  padding-left: 18px;
  border-left: 2px solid var(--accent);
  color: var(--ink-faint);
  font-size: 14px;
}

.about-greeting {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(28px, 3vw, 40px);
  margin-bottom: 20px;
}
.about-greeting strong { font-weight: 600; color: var(--accent); }

.about-text { color: var(--ink-dim); margin-bottom: 16px; max-width: 620px; }
.about-text strong { color: var(--ink); font-weight: 600; }

/* hairline 信息列表 */
.fact-list { margin-top: 34px; border-top: 1px solid var(--line); }
.fact-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  align-items: baseline;
  padding: 15px 4px;
  border-bottom: 1px solid var(--line);
  transition: background .3s, padding-left .3s;
}
.fact-row:hover { background: var(--accent-soft); padding-left: 12px; }
.fact-row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--ink-faint);
}
.fact-row dd { color: var(--ink); font-size: 15px; }

/* 数据统计 */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 38px;
}
.stat {
  background: var(--bg);
  padding: 26px 20px;
  transition: background .35s;
}
.stat:hover { background: var(--surface); }
.stat__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 3.4vw, 46px);
  line-height: 1;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.stat__label { margin-top: 10px; font-size: 12.5px; color: var(--ink-faint); line-height: 1.5; }

/* ---------------- 9. CAREER 经历时间线 ---------------- */
.timeline {
  position: relative;
  margin-left: 8px;
  padding-left: clamp(26px, 4vw, 44px);
}
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 8px; bottom: 8px;
  width: 1px;
  background: linear-gradient(var(--accent-line), var(--line) 18%, var(--line));
}
.timeline-item { position: relative; padding-bottom: 34px; }
.timeline-item:last-child { padding-bottom: 0; }

.timeline-marker {
  position: absolute;
  left: clamp(-26px, -4vw, -44px);
  top: 26px;
  width: 15px; height: 15px;
  background: var(--bg-2);
  border: 1px solid var(--accent-line);
  transform: rotate(45deg);
  box-shadow: 0 0 16px rgba(201, 255, 26, .25);
  transition: background .3s, box-shadow .3s;
}
.timeline-item:hover .timeline-marker { background: var(--accent); box-shadow: 0 0 24px rgba(201, 255, 26, .55); }

.timeline-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(24px, 3.2vw, 38px);
  background: rgba(255, 255, 255, .015);
  transition: transform .4s var(--ease-out), border-color .4s, background .4s;
}
.timeline-card:hover {
  transform: translateX(8px);
  border-color: rgba(201, 255, 26, .35);
  background: var(--surface);
}
.timeline-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}
.timeline-card time {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: .05em;
}
.tag-role {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--accent);
  border: 1px solid var(--accent-line);
  background: var(--accent-soft);
  padding: 4px 12px;
  border-radius: 999px;
}
.timeline-card h3 { font-size: 20px; font-weight: 600; margin-bottom: 14px; }
.timeline-card h3 small {
  display: block;
  margin-top: 4px;
  font-size: 14px;
  font-weight: 400;
  color: var(--ink-faint);
}
.timeline-points li {
  position: relative;
  padding-left: 20px;
  color: var(--ink-dim);
  font-size: 14.5px;
  margin-bottom: 9px;
}
.timeline-points li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
}
.timeline-points strong { color: var(--ink); font-weight: 600; }

/* ---------------- 10. WORKS 项目作品 ---------------- */
.works { cursor: auto; }
.works-list { display: flex; flex-direction: column; gap: clamp(56px, 7vw, 100px); }

.work-card {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 60px);
  align-items: center;
  cursor: pointer;
  outline: none;
}
/* 偶数卡片左右镜像交错 */
.work-card:nth-child(even) { direction: rtl; }
.work-card:nth-child(even) > * { direction: ltr; }

.work-card__media {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  background: var(--surface);
}
.work-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .8s var(--ease-out), filter .6s;
}
.work-card:hover .work-card__media img,
.work-card:focus-visible .work-card__media img { transform: scale(1.06); }
.work-card__media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(5, 5, 7, .55));
  pointer-events: none;
}
.work-card__index {
  position: absolute;
  right: 18px; bottom: 8px;
  z-index: 1;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(64px, 8vw, 120px);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(247, 251, 252, .7);
  transition: color .4s, -webkit-text-stroke-color .4s;
}
.work-card:hover .work-card__index,
.work-card:focus-visible .work-card__index {
  color: rgba(201, 255, 26, .16);
  -webkit-text-stroke-color: var(--accent);
}

.work-card__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--accent);
  margin-bottom: 12px;
}
.work-card__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.15;
  margin-bottom: 14px;
}
.work-card__title i {
  font-style: normal;
  color: var(--accent);
  font-size: .6em;
  transition: transform .35s var(--ease-out);
}
.work-card:hover .work-card__title i,
.work-card:focus-visible .work-card__title i { display: inline-block; transform: translate(5px, -5px); }
.work-card__desc { color: var(--ink-dim); font-size: 15px; max-width: 460px; }

/* 作品区桌面端自定义光标 */
.work-cursor {
  position: fixed;
  top: 0; left: 0;
  z-index: 150;
  display: grid;
  place-items: center;
  width: 88px; height: 88px;
  border-radius: 50%;
  background: var(--accent);
  color: #0a110d;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(0);
  transition: transform .35s var(--ease-out);
  mix-blend-mode: normal;
}
.work-cursor.is-active { transform: translate(-50%, -50%) scale(1); }

/* ---------------- 11. 作品详情弹窗 ---------------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  padding: clamp(16px, 4vw, 48px);
  visibility: hidden;
}
.modal.is-open { visibility: visible; }

.modal__backdrop {
  position: absolute; inset: 0;
  background: rgba(3, 5, 6, .7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  opacity: 0;
  transition: opacity .35s;
}
.modal.is-open .modal__backdrop { opacity: 1; }

.modal__panel {
  position: relative;
  width: min(880px, 100%);
  max-height: 88vh;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 24px;
  transform: translateY(40px) scale(.96);
  opacity: 0;
  transition: transform .45s var(--ease-out), opacity .35s;
}
.modal.is-open .modal__panel { transform: translateY(0) scale(1); opacity: 1; }

.modal__media { aspect-ratio: 16 / 8; overflow: hidden; background: var(--bg-2); }
.modal__media img { width: 100%; height: 100%; object-fit: cover; }

.modal__content { padding: clamp(24px, 4vw, 44px); }
.modal__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--accent);
  margin-bottom: 10px;
}
.modal__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(26px, 4vw, 38px);
  margin-bottom: 14px;
}
.modal__desc { color: var(--ink-dim); }
.modal__points { margin: 18px 0 0; }
.modal__points li {
  position: relative;
  padding-left: 22px;
  color: var(--ink-dim);
  font-size: 14.5px;
  margin-bottom: 8px;
}
.modal__points li::before { content: "✦"; position: absolute; left: 0; color: var(--accent); font-size: 11px; top: 4px; }
.modal__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.modal__close {
  position: absolute;
  top: 16px; right: 16px;
  z-index: 2;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: rgba(5, 5, 7, .6);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(8px);
}
.modal__close span {
  position: absolute;
  left: 12px; top: 20px;
  width: 17px; height: 2px;
  background: var(--ink);
}
.modal__close span:nth-child(1) { transform: rotate(45deg); }
.modal__close span:nth-child(2) { transform: rotate(-45deg); }
.modal__close:hover { border-color: var(--accent); }
.modal__close:hover span { background: var(--accent); }

/* ---------------- 12. SKILLS 技能 ---------------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.skill-block {
  background: var(--bg-2);
  padding: clamp(26px, 3.4vw, 42px);
  transition: background .4s;
}
.skill-block:hover { background: var(--surface); }

.skill-block__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.skill-block__no {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(201, 255, 26, .55);
}
.skill-block__en {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--ink-faint);
}
.skill-block h3 { font-size: 21px; font-weight: 600; margin-bottom: 10px; }
.skill-block p { color: var(--ink-dim); font-size: 14px; }

/* 熟练度进度条 */
.skill-bar {
  height: 4px;
  border-radius: 99px;
  background: rgba(255, 255, 255, .08);
  margin-top: 22px;
  overflow: hidden;
}
.skill-bar span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent), #eaffa3);
  box-shadow: 0 0 12px rgba(201, 255, 26, .45);
  transition: width 1.2s var(--ease-out) .15s;
}

.certs { margin-top: 56px; }
.certs__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--ink-faint);
  margin-bottom: 6px;
}

/* ---------------- 13. CONTACT 联系方式 ---------------- */
.contact-title { font-size: clamp(40px, 8vw, 110px); line-height: 1; }
.contact-lead {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.5;
  max-width: 760px;
  margin-bottom: clamp(40px, 6vw, 70px);
}
.contact-lead strong { font-weight: 600; color: var(--accent); }

.contact-list { border-top: 1px solid var(--line); }
.contact-row {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 18px;
  padding: clamp(20px, 3vw, 30px) 8px;
  border-bottom: 1px solid var(--line);
  transition: background .35s, padding-left .35s;
}
a.contact-row:hover { background: var(--accent-soft); padding-left: 20px; }
.contact-row__icon {
  display: grid;
  place-items: center;
  width: 46px; height: 46px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink-dim);
  transition: color .3s, border-color .3s;
}
.contact-row__icon svg { width: 20px; height: 20px; fill: currentColor; }
a.contact-row:hover .contact-row__icon { color: var(--accent); border-color: var(--accent-line); }
.contact-row__meta { display: flex; flex-direction: column; gap: 3px; }
.contact-row__meta small {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  color: var(--ink-faint);
}
.contact-row__meta strong { font-size: clamp(17px, 2vw, 22px); font-weight: 500; }
a.contact-row:hover .contact-row__meta strong { color: var(--accent); }
.contact-row__arrow {
  font-size: 22px;
  color: var(--ink-faint);
  transition: transform .35s var(--ease-out), color .3s;
}
a.contact-row:hover .contact-row__arrow { color: var(--accent); transform: translate(4px, -4px); }

/* 复制邮箱按钮 */
.copy-btn {
  position: relative;
  display: grid;
  place-items: center;
  width: 46px; height: 46px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink-dim);
  transition: color .3s, border-color .3s;
}
.copy-btn svg { width: 19px; height: 19px; fill: currentColor; }
.copy-btn:hover { color: var(--accent); border-color: var(--accent-line); }
.copy-btn__tip {
  position: absolute;
  top: -34px; left: 50%;
  transform: translateX(-50%) translateY(6px);
  background: var(--accent);
  color: #0a110d;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s, transform .25s var(--ease-out);
  white-space: nowrap;
}
.copy-btn.is-copied .copy-btn__tip { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------------- 14. 页脚 ---------------- */
.site-footer { border-top: 1px solid var(--line); padding-block: 36px; background: var(--bg); }
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand--footer .brand-monogram { width: 32px; height: 32px; font-size: 13px; border-radius: 9px; }
.footer-copy { color: var(--ink-faint); font-size: 13px; }
.footer-copy i { font-style: normal; color: var(--accent); font-family: var(--font-mono); font-size: 11px; }
.back-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--ink-dim);
  transition: color .3s;
}
.back-top span {
  display: grid;
  place-items: center;
  width: 34px; height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  transition: transform .3s var(--ease-out), border-color .3s, color .3s;
}
.back-top:hover { color: var(--accent); }
.back-top:hover span { transform: translateY(-3px); border-color: var(--accent-line); }

/* ---------------- 15. 滚动 Reveal ---------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity .9s var(--ease-out), transform .9s var(--ease-out);
}
[data-reveal].is-in { opacity: 1; transform: translateY(0); }

/* ---------------- 16. 关键帧 ---------------- */
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: .25; }
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(201, 255, 26, .55); }
  70%  { box-shadow: 0 0 0 12px rgba(201, 255, 26, 0); }
  100% { box-shadow: 0 0 0 0 rgba(201, 255, 26, 0); }
}
@keyframes scrollLine {
  0%   { transform: translateY(0); }
  100% { transform: translateY(300%); }
}

/* ---------------- 17. 响应式：平板 ---------------- */
@media (max-width: 1023px) {
  .site-nav { display: none; }
  .header-cta { display: none; }
  .nav-toggle { display: block; }

  /* Hero 改为单栏：文案 → 3D 校徽 → 行动按钮 */
  .hero-inner {
    grid-template-columns: 1fr;
    grid-template-areas: "copy" "badge" "tail";
    row-gap: clamp(32px, 6vw, 48px);
  }

  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-portrait { position: static; max-width: 420px; }
  .stats { grid-template-columns: repeat(2, 1fr); }

  .work-card { grid-template-columns: 1fr; gap: 22px; }
  .work-card:nth-child(even) { direction: ltr; }

  .work-cursor { display: none; }
  .scroll-hint { display: none; }
}

/* ---------------- 18. 响应式：手机 ---------------- */
@media (max-width: 640px) {
  :root { --header-h: 62px; }

  .section { padding-block: 72px; }
  .hero-inner { padding-bottom: 150px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-meta { gap: 8px 18px; }

  .fact-row { grid-template-columns: 1fr; gap: 4px; }
  .stat { padding: 20px 16px; }

  .skills-grid { grid-template-columns: 1fr; }

  .timeline { margin-left: 0; padding-left: 28px; }
  .timeline-marker { left: -28px; }
  .timeline-card:hover { transform: none; }

  .contact-row { grid-template-columns: 44px 1fr; gap: 12px; }
  .contact-row__arrow { display: none; }
  .copy-btn { grid-column: 2; justify-self: start; width: auto; padding: 8px 16px; gap: 8px;
              display: inline-flex; align-items: center; border-radius: 999px; }

  .footer-inner { flex-direction: column; align-items: flex-start; }

  .work-card__index { font-size: 56px; }
  .marquee { padding-block: 12px; }
}

/* ---------------- 19. 减弱动效偏好 ---------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  [data-reveal], .hero [data-hero-line] { opacity: 1; transform: none; }
  .hero .hero-line span { transform: none; }
}