/* ============================================================================
   李欣蔓 · 个人主页 ｜ 深色星河主题
   ----------------------------------------------------------------------------
   配色思路：深紫黑打底 + 樱粉 → 星紫 → 极光青 的极光渐变，
   呼应作品《星河守望》里的「星河」，同时保留科技感与玻璃质感。

   想整体换色？只改下面 :root 里的三个强调色即可，其余都会跟着变。
   ============================================================================ */

:root {
  /* ---------- 背景与面板 ---------- */
  --bg: #08060f;
  --bg-soft: #0e0a1c;
  --panel-color: rgba(30, 22, 52, 0.5);
  --panel-solid: #16102a;
  --glass: linear-gradient(150deg, rgba(255, 255, 255, 0.065), rgba(255, 255, 255, 0.012));
  --border: rgba(167, 139, 250, 0.17);
  --border-strong: rgba(196, 181, 253, 0.36);

  /* ---------- 文字 ---------- */
  --text: #f5f1ff;
  --text-soft: #c9bee6;
  --muted: #8d82ad;

  /* ---------- 极光三色（改这三个就能换整体色调）---------- */
  --accent: #ff8ec7;      /* 樱粉 */
  --accent-2: #a78bfa;    /* 星紫 */
  --accent-3: #5eead4;    /* 极光青 */
  --warn: #ffd580;

  /* ---------- 渐变 ---------- */
  --grad: linear-gradient(115deg, #ff8ec7 0%, #c084fc 46%, #5eead4 100%);
  --grad-soft: linear-gradient(115deg, rgba(255, 142, 199, 0.9), rgba(167, 139, 250, 0.9), rgba(94, 234, 212, 0.9));

  /* ---------- 尺寸与动效 ---------- */
  --radius: 24px;
  --radius-sm: 15px;
  --maxw: 1180px;
  --nav-h: 68px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* ---------- 字体（全部系统自带，不联网也不会掉字）---------- */
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, "SF Mono", Menlo, monospace;
  --sans: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

/* ============================================================================
   基础
   ============================================================================ */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.78;
  letter-spacing: 0.012em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(55rem 30rem at 82% -6%, rgba(255, 142, 199, 0.16), transparent 62%),
    radial-gradient(46rem 26rem at 4% 2%, rgba(167, 139, 250, 0.17), transparent 64%),
    radial-gradient(50rem 30rem at 50% 108%, rgba(94, 234, 212, 0.10), transparent 66%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 52%, var(--bg) 100%);
  pointer-events: none;
}

img, svg, canvas { display: block; max-width: 100%; }
svg { flex: none; }

a { color: var(--accent); text-decoration: none; transition: color 0.25s var(--ease), opacity 0.25s var(--ease); }
a:hover { color: var(--text); }

h1, h2, h3, h4 { line-height: 1.24; margin: 0; letter-spacing: -0.012em; }
p { margin: 0 0 1rem; }
ul, ol { margin: 0; padding: 0; list-style: none; }
em { color: var(--text); font-style: normal; background: linear-gradient(transparent 62%, rgba(255, 142, 199, 0.28) 62%); }
strong { color: var(--text); font-weight: 700; }
code, pre { font-family: var(--mono); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 26px;
}

/* ------------------------------ 背景层：极光 + 网格 ------------------------------ */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(167, 139, 250, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(167, 139, 250, 0.05) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: radial-gradient(ellipse 88% 62% at 50% 0%, #000 22%, transparent 100%);
          mask-image: radial-gradient(ellipse 88% 62% at 50% 0%, #000 22%, transparent 100%);
}

/* 三团缓慢漂移的星云（纯 radial-gradient，不用 filter，性能开销低） */
.aurora {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  overflow: hidden;
}
.aurora i {
  position: absolute;
  display: block;
  border-radius: 50%;
  will-change: transform;
}
.aurora i:nth-child(1) {
  width: 58vw; height: 58vw;
  left: -14vw; top: -16vw;
  background: radial-gradient(circle, rgba(255, 142, 199, 0.30), transparent 66%);
  animation: drift1 26s ease-in-out infinite;
}
.aurora i:nth-child(2) {
  width: 52vw; height: 52vw;
  right: -12vw; top: 12vh;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.30), transparent 66%);
  animation: drift2 32s ease-in-out infinite;
}
.aurora i:nth-child(3) {
  width: 46vw; height: 46vw;
  left: 22vw; bottom: -20vw;
  background: radial-gradient(circle, rgba(94, 234, 212, 0.20), transparent 68%);
  animation: drift3 29s ease-in-out infinite;
}
@keyframes drift1 {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(6vw, 5vh, 0) scale(1.12); }
}
@keyframes drift2 {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1.05); }
  50% { transform: translate3d(-7vw, 8vh, 0) scale(0.92); }
}
@keyframes drift3 {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(5vw, -6vh, 0) scale(1.14); }
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  z-index: 999;
  padding: 10px 18px;
  background: var(--grad);
  color: #1a0d18;
  border-radius: 999px;
  font-weight: 700;
}
.skip-link:focus { left: 16px; }

/* 顶部滚动进度条 */
.scroll-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  z-index: 130;
  background: var(--grad);
  border-radius: 0 3px 3px 0;
  box-shadow: 0 0 14px rgba(255, 142, 199, 0.75);
  transition: width 0.08s linear;
}

/* ============================================================================
   顶部导航
   ============================================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), backdrop-filter 0.35s var(--ease);
}
.nav.is-scrolled {
  background: rgba(8, 6, 15, 0.72);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border-bottom-color: var(--border);
}

.nav__inner {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 15px;
  color: var(--text);
  letter-spacing: 0.02em;
}
.logo__mark {
  font-size: 17px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  color: #220f1c;
  background: var(--grad);
  box-shadow: 0 6px 20px -8px rgba(255, 142, 199, 0.9);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease);
}
.logo:hover .logo__mark {
  transform: rotate(-12deg) scale(1.08);
  box-shadow: 0 10px 26px -8px rgba(255, 142, 199, 1);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 14.5px;
}
.nav__menu a {
  position: relative;
  display: inline-block;
  padding: 8px 14px;
  color: var(--text-soft);
  border-radius: 999px;
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
.nav__menu a:hover { color: var(--text); background: rgba(255, 255, 255, 0.06); }
.nav__menu a.is-active {
  color: #1c0f19;
  background: var(--grad-soft);
  font-weight: 600;
}

.nav__cta {
  margin-left: 10px;
  padding: 8px 18px !important;
  border: 1px solid var(--border-strong);
  color: var(--text) !important;
  font-family: var(--mono);
  font-size: 13px !important;
  background: rgba(255, 255, 255, 0.04);
}
.nav__cta:hover {
  border-color: transparent;
  background: var(--grad) !important;
  color: #1c0f19 !important;
  box-shadow: 0 8px 24px -10px rgba(255, 142, 199, 0.95);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 40px;
  padding: 0 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
}
.nav__toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.25s var(--ease);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================================
   首屏
   ============================================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  padding: calc(var(--nav-h) + 76px) 0 96px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.62;
  pointer-events: none;
}
.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 60px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-soft);
  margin: 0 0 18px;
  padding: 6px 14px 6px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.eyebrow .prompt { color: var(--accent-3); }

.hero__title {
  font-size: clamp(2.9rem, 7.4vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 10px;
  background: linear-gradient(115deg, #ffffff 0%, #ffd9ec 22%, #ff8ec7 42%, #c084fc 64%, #5eead4 88%, #ffffff 100%);
  background-size: 260% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradShift 9s linear infinite;
}
@keyframes gradShift {
  0% { background-position: 0% center; }
  100% { background-position: 260% center; }
}

.hero__role {
  font-family: var(--mono);
  font-size: clamp(1rem, 2.3vw, 1.24rem);
  margin: 0 0 20px;
  min-height: 1.9em;
  background: linear-gradient(100deg, var(--accent), var(--accent-2) 55%, var(--accent-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.caret {
  display: inline-block;
  width: 9px;
  height: 1.02em;
  margin-left: 4px;
  vertical-align: -0.16em;
  border-radius: 2px;
  background: var(--grad);
  animation: blink 1.05s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero__desc {
  max-width: 34em;
  color: var(--text-soft);
  font-size: 1.03rem;
  margin-bottom: 32px;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 27px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.3s var(--ease-out), box-shadow 0.35s var(--ease), background 0.3s var(--ease), border-color 0.3s var(--ease), color 0.3s var(--ease);
}
/* 掠过式高光 */
.btn::after {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 45%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  transform: skewX(-18deg);
  transition: left 0.6s var(--ease-out);
}
.btn:hover::after { left: 130%; }

.btn--primary {
  background: var(--grad);
  color: #1c0f19;
  box-shadow: 0 14px 34px -14px rgba(255, 142, 199, 0.95);
}
.btn--primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 20px 44px -14px rgba(255, 142, 199, 1);
  color: #1c0f19;
}
.btn--ghost {
  background: var(--glass);
  border-color: var(--border-strong);
  color: var(--text);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.btn--ghost:hover {
  transform: translateY(-3px) scale(1.02);
  border-color: transparent;
  background: var(--grad-soft);
  color: #1c0f19;
  box-shadow: 0 18px 40px -16px rgba(167, 139, 250, 0.95);
}

.hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-size: 14.5px;
  font-family: var(--mono);
}
.hero__links a,
.hero__link-static {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  transition: color 0.25s var(--ease), transform 0.25s var(--ease);
}
.hero__links a:hover { color: var(--accent); transform: translateY(-2px); }
.hero__link-static { cursor: default; }

/* 终端卡片 → 玻璃质感卡 */
.terminal {
  position: relative;
  border-radius: var(--radius);
  background-image: var(--glass);
  background-color: var(--panel-color);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow: 0 30px 70px -34px rgba(167, 139, 250, 0.85);
  overflow: hidden;
  transition: transform 0.6s var(--ease-out), box-shadow 0.6s var(--ease);
}
/* 渐变描边 */
.terminal::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.2px;
  background: var(--grad);
  opacity: 0.55;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask-composite: exclude;
  pointer-events: none;
  transition: opacity 0.5s var(--ease);
}
.terminal:hover {
  transform: translateY(-6px);
  box-shadow: 0 40px 90px -36px rgba(255, 142, 199, 0.9);
}
.terminal:hover::before { opacity: 1; }

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.035);
  border-bottom: 1px solid var(--border);
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot--r { background: #ff8ec7; }
.dot--y { background: #ffd580; }
.dot--g { background: #5eead4; }
.terminal__title {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}
.terminal__body {
  padding: 20px 22px;
  font-size: 13.4px;
  line-height: 1.95;
  overflow-x: auto;
}
.terminal__body pre { margin: 0; }
.terminal__body code { color: var(--text-soft); white-space: pre; }
.c-p { color: var(--accent-3); }
.c-o { color: var(--accent); }
.c-g { color: var(--accent-2); }

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--muted);
}
.hero__scroll i {
  width: 2px;
  height: 44px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2), transparent);
  animation: drop 2.1s var(--ease) infinite;
}
@keyframes drop {
  0% { transform: scaleY(0.2); opacity: 0; }
  40% { opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}

/* ============================================================================
   技能跑马灯
   ============================================================================ */
.marquee {
  position: relative;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(90deg, rgba(255, 142, 199, 0.05), rgba(167, 139, 250, 0.05), rgba(94, 234, 212, 0.05));
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee__track {
  display: flex;
  align-items: center;
  gap: 30px;
  width: max-content;
  animation: marquee 38s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.marquee__track span {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--text-soft);
  white-space: nowrap;
}
.marquee__track i {
  font-style: normal;
  font-size: 9px;
  color: var(--accent);
  opacity: 0.75;
}

/* ============================================================================
   通用区块
   ============================================================================ */
.section {
  padding: 112px 0;
  scroll-margin-top: calc(var(--nav-h) + 12px);
  position: relative;
}
.section--alt {
  background: linear-gradient(180deg, rgba(167, 139, 250, 0.045), rgba(255, 142, 199, 0.02) 55%, rgba(255, 255, 255, 0));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin: 0 0 12px;
}
.section__kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--grad);
}
.section__title {
  font-size: clamp(1.85rem, 4.2vw, 2.6rem);
  font-weight: 780;
  margin-bottom: 14px;
}
.section__title::after {
  content: "";
  display: block;
  width: 68px;
  height: 4px;
  margin-top: 18px;
  border-radius: 4px;
  background: var(--grad);
  box-shadow: 0 0 18px -2px rgba(255, 142, 199, 0.85);
}
.section__sub {
  color: var(--muted);
  max-width: 48em;
  margin: 24px 0 44px;
  font-size: 0.97rem;
}

/* ============================================================================
   关于我
   ============================================================================ */
.about {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: 52px;
  margin-top: 44px;
  align-items: start;
}
.about__text p { color: var(--text-soft); }
.about__facts {
  margin-top: 28px;
  display: grid;
  gap: 10px;
  font-family: var(--mono);
  font-size: 14px;
}
.about__facts li {
  position: relative;
  display: flex;
  gap: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background-image: var(--glass);
  background-color: var(--panel-color);
  color: var(--text-soft);
  overflow: hidden;
  transition: transform 0.3s var(--ease-out), border-color 0.3s var(--ease);
}
.about__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--grad);
}
.about__facts li:hover { transform: translateX(5px); border-color: var(--border-strong); }
.about__facts span { color: var(--muted); min-width: 3.6em; }

/* 右侧栏：照片 + 数字 */
.about__side { display: grid; gap: 24px; align-content: start; }

.portrait {
  position: relative;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  border-radius: var(--radius);
  padding: 5px;
  background: var(--grad);
  box-shadow: 0 30px 70px -32px rgba(255, 142, 199, 0.95);
  transition: transform 0.5s var(--ease-out), box-shadow 0.5s var(--ease);
}
.portrait img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius) - 5px);
  background: var(--panel-solid);
}
.portrait:hover {
  transform: translateY(-6px) rotate(-0.8deg);
  box-shadow: 0 40px 84px -30px rgba(255, 142, 199, 1);
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.stat {
  position: relative;
  padding: 26px 18px;
  text-align: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background-image: var(--glass);
  background-color: var(--panel-color);
  overflow: hidden;
  transition: transform 0.35s var(--ease-out), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.stat::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(14rem 8rem at 50% 0%, rgba(255, 142, 199, 0.16), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.stat:hover {
  transform: translateY(-5px);
  border-color: var(--border-strong);
  box-shadow: 0 22px 46px -26px rgba(167, 139, 250, 0.95);
}
.stat:hover::before { opacity: 1; }
.stat b {
  position: relative;
  display: block;
  font-family: var(--mono);
  font-size: 2.15rem;
  font-weight: 700;
  line-height: 1.2;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat span { position: relative; font-size: 13px; color: var(--muted); }

/* ============================================================================
   技能
   ============================================================================ */
.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 22px;
}
.skill-group {
  position: relative;
  padding: 28px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background-image: var(--glass);
  background-color: var(--panel-color);
  overflow: hidden;
  transition: transform 0.4s var(--ease-out), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.skill-group::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.2px;
  background: var(--grad);
  opacity: 0;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask-composite: exclude;
  pointer-events: none;
  transition: opacity 0.45s var(--ease);
}
.skill-group:hover {
  transform: translateY(-5px);
  box-shadow: 0 26px 56px -30px rgba(167, 139, 250, 0.9);
}
.skill-group:hover::before { opacity: 0.85; }
.skill-group h3 {
  font-size: 15.5px;
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  color: var(--text);
}
.skill-group .ico { color: var(--accent); }

.bar { margin-bottom: 16px; }
.bar:last-child { margin-bottom: 0; }
.bar__label {
  display: block;
  font-size: 13.4px;
  color: var(--text-soft);
  margin-bottom: 8px;
}
.bar__track {
  display: block;
  height: 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  overflow: hidden;
}
.bar__track i {
  position: relative;
  display: block;
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: var(--grad);
  background-size: 200% auto;
  box-shadow: 0 0 16px rgba(255, 142, 199, 0.6);
  transition: width 1.2s var(--ease-out);
  animation: barShine 3.6s linear infinite;
}
@keyframes barShine {
  0% { background-position: 0% center; }
  100% { background-position: 200% center; }
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
}
.tags span {
  font-family: var(--mono);
  font-size: 12.5px;
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text-soft);
  background-image: var(--glass);
  background-color: rgba(30, 22, 52, 0.4);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease-out), background 0.3s var(--ease);
}
.tags span:hover {
  color: #1c0f19;
  border-color: transparent;
  background: var(--grad);
  transform: translateY(-3px) scale(1.05);
}

/* ============================================================================
   作品集
   ============================================================================ */
.work {
  position: relative;
  padding: 36px 34px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background-image: var(--glass);
  background-color: var(--panel-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
}
.work__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.work__title {
  font-size: clamp(1.6rem, 3.8vw, 2.2rem);
  font-weight: 780;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.work__meta {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  margin: 10px 0 0;
}
.work__badge {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  padding: 6px 15px;
  border-radius: 999px;
  color: #1c0f19;
  background: var(--grad);
  box-shadow: 0 10px 24px -12px rgba(255, 142, 199, 0.95);
  white-space: nowrap;
}
.work__lead { color: var(--text-soft); font-size: 1.03rem; }

.work__points {
  display: grid;
  gap: 16px;
  margin: 28px 0 38px;
}
.work__points li {
  position: relative;
  padding: 4px 0 4px 20px;
  color: var(--text-soft);
  font-size: 14.7px;
}
.work__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  bottom: 5px;
  width: 2px;
  border-radius: 2px;
  background: var(--grad);
}
.work__points b {
  display: block;
  color: var(--text);
  font-size: 15px;
  margin-bottom: 5px;
}
.work__note {
  margin: 34px 0 0;
  padding: 20px 22px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border-strong);
  background: rgba(167, 139, 250, 0.06);
  color: var(--muted);
  font-size: 14px;
}
.work__note b {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
}

.gallery { display: grid; gap: 20px; }
.gallery__title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent-2);
  margin: 10px 0 0;
}
.gallery__title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-strong), transparent);
}
.gallery__grid { columns: 3 220px; column-gap: 18px; }
.gallery__item { break-inside: avoid; margin: 0 0 18px; }
.gallery__btn {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--panel-solid);
  overflow: hidden;
  cursor: zoom-in;
  line-height: 0;
  transition: transform 0.45s var(--ease-out), border-color 0.4s var(--ease), box-shadow 0.45s var(--ease);
}
.gallery__btn:hover {
  transform: translateY(-5px) scale(1.015);
  border-color: transparent;
  box-shadow: 0 26px 56px -28px rgba(255, 142, 199, 0.95);
}
.gallery__btn img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s var(--ease-out), filter 0.5s var(--ease);
}
.gallery__btn:hover img { transform: scale(1.045); }
.gallery__zoom {
  position: absolute;
  right: 10px;
  top: 10px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--grad);
  color: #1c0f19;
  font-size: 13px;
  line-height: 1;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease-out);
}
.gallery__btn:hover .gallery__zoom,
.gallery__btn:focus-visible .gallery__zoom { opacity: 1; transform: scale(1); }
.gallery__item figcaption {
  margin-top: 10px;
  font-family: var(--mono);
  font-size: 12.4px;
  color: var(--muted);
}

/* ============================================================================
   项目卡片
   ============================================================================ */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
  gap: 22px;
}
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background-image: var(--glass);
  background-color: var(--panel-color);
  overflow: hidden;
  transform-style: preserve-3d;
  transition: transform 0.5s var(--ease-out), border-color 0.4s var(--ease), box-shadow 0.45s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.2px;
  background: var(--grad);
  opacity: 0;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask-composite: exclude;
  pointer-events: none;
  transition: opacity 0.45s var(--ease);
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(26rem 15rem at var(--mx, 50%) var(--my, 0%), rgba(255, 142, 199, 0.13), transparent 62%);
  opacity: 0;
  transition: opacity 0.45s var(--ease);
  pointer-events: none;
}
.card:hover {
  border-color: transparent;
  box-shadow: 0 34px 72px -34px rgba(167, 139, 250, 0.95);
}
.card:hover::before { opacity: 0.9; }
.card:hover::after { opacity: 1; }

.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.card__badge {
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 5px 13px;
  border-radius: 999px;
  border: 1px solid currentColor;
}
.card__badge--ai { color: var(--accent); }
.card__badge--data { color: var(--accent-2); }
.card__badge--oss { color: var(--accent-3); }
.card__badge--web { color: var(--warn); }
.card__year { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }

.card__title { font-size: 1.18rem; margin-bottom: 11px; }
.card__desc { color: var(--text-soft); font-size: 14.4px; flex: 1 1 auto; }

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 8px 0 20px;
}
.card__tags li {
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 4px 11px;
  border-radius: 8px;
  background: rgba(167, 139, 250, 0.13);
  color: var(--accent-2);
}
.card__links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-family: var(--mono);
  font-size: 13.5px;
  padding-top: 18px;
  border-top: 1px dashed var(--border);
}
.card__note {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-family: var(--sans);
  font-size: 13.6px;
  line-height: 1.7;
  color: var(--text-soft);
}
.card__note b {
  flex: none;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
}

/* ============================================================================
   经历时间线
   ============================================================================ */
.timeline {
  position: relative;
  margin-top: 48px;
  padding-left: 36px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2) 55%, var(--accent-3), transparent);
  opacity: 0.7;
}
.timeline__item { position: relative; padding-bottom: 42px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__dot {
  position: absolute;
  left: -36px;
  top: 9px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg);
  border: 2.5px solid var(--accent);
  box-shadow: 0 0 0 5px rgba(255, 142, 199, 0.13), 0 0 18px rgba(255, 142, 199, 0.55);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease);
}
.timeline__item:hover .timeline__dot {
  transform: scale(1.25);
  box-shadow: 0 0 0 7px rgba(255, 142, 199, 0.16), 0 0 26px rgba(255, 142, 199, 0.85);
}
.timeline__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}
.timeline__head h3 { font-size: 1.08rem; }
.timeline__time {
  font-family: var(--mono);
  font-size: 12.5px;
  padding: 3px 12px;
  border-radius: 999px;
  color: var(--accent-3);
  background: rgba(94, 234, 212, 0.09);
  border: 1px solid rgba(94, 234, 212, 0.22);
  white-space: nowrap;
}
.timeline__org {
  font-size: 13.6px;
  color: var(--muted);
  margin: 6px 0 13px;
}
.timeline__list { display: grid; gap: 8px; }
.timeline__list li {
  position: relative;
  padding-left: 21px;
  color: var(--text-soft);
  font-size: 14.4px;
}
.timeline__list li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ============================================================================
   联系方式
   ============================================================================ */
.contacts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
  margin-top: 10px;
}
.contact {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background-image: var(--glass);
  background-color: var(--panel-color);
  color: var(--text);
  font-family: inherit;
  font-size: inherit;
  text-align: left;
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.4s var(--ease-out), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.2px;
  background: var(--grad);
  opacity: 0;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask-composite: exclude;
  pointer-events: none;
  transition: opacity 0.4s var(--ease);
}
.contact:hover {
  transform: translateY(-5px);
  border-color: transparent;
  box-shadow: 0 26px 56px -28px rgba(255, 142, 199, 0.95);
  color: var(--text);
}
.contact:hover::before { opacity: 0.9; }
.contact__ico {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  flex: none;
  border-radius: 15px;
  color: #1c0f19;
  background: var(--grad);
  box-shadow: 0 10px 24px -12px rgba(255, 142, 199, 0.9);
}
.contact__meta { display: flex; flex-direction: column; min-width: 0; }
.contact__meta b { font-size: 14.8px; font-weight: 650; }
.contact__meta i {
  font-style: normal;
  font-family: var(--mono);
  font-size: 12.8px;
  color: var(--muted);
  overflow-wrap: anywhere;
}
.contact__arrow {
  margin-left: auto;
  color: var(--muted);
  font-family: var(--mono);
  transition: transform 0.35s var(--ease-out), color 0.3s var(--ease);
}
.contact:hover .contact__arrow { color: var(--accent); transform: translateX(4px); }
.contact.is-copied .contact__ico { background: var(--accent-3); }
.contact.is-copied .contact__arrow { color: var(--accent-3); }

/* ============================================================================
   页脚 / 回到顶部
   ============================================================================ */
.footer {
  padding: 36px 0;
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.012);
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 13.5px;
  color: var(--muted);
  font-family: var(--mono);
}
.footer p { margin: 0; }

.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: none;
  background: var(--grad);
  color: #1c0f19;
  font-size: 18px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.9);
  box-shadow: 0 16px 34px -14px rgba(255, 142, 199, 1);
  transition: opacity 0.35s var(--ease), transform 0.35s var(--ease-out), visibility 0.35s, box-shadow 0.35s var(--ease);
  z-index: 90;
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { transform: translateY(-3px) scale(1.06); box-shadow: 0 22px 44px -14px rgba(255, 142, 199, 1); }

/* ============================================================================
   图片灯箱
   ============================================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 64px 22px 36px;
  background: rgba(6, 4, 12, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease), visibility 0.3s;
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox__figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
  max-width: min(1180px, 94vw);
}
.lightbox__img {
  max-width: 100%;
  max-height: 74vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-sm);
  background: var(--panel-solid);
  box-shadow: 0 40px 90px -40px rgba(255, 142, 199, 0.9);
}
.lightbox__caption {
  display: block;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-soft);
  text-align: center;
}
.lightbox__count {
  display: block;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  text-align: center;
  letter-spacing: 0.1em;
}
.lightbox__btn {
  position: absolute;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: rgba(22, 16, 42, 0.88);
  color: var(--text);
  font-size: 19px;
  line-height: 1;
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease), transform 0.3s var(--ease-out), background 0.3s var(--ease);
}
.lightbox__btn:hover {
  border-color: transparent;
  background: var(--grad);
  color: #1c0f19;
  transform: scale(1.08);
}
.lightbox__close { top: 16px; right: 16px; }
.lightbox__nav { top: 50%; transform: translateY(-50%); }
.lightbox__nav--prev { left: 14px; }
.lightbox__nav--next { right: 14px; }
.lightbox__nav:hover { transform: translateY(-50%) scale(1.08); }

body.is-locked { overflow: hidden; }

/* ============================================================================
   滚动入场动画
   ============================================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.85s var(--ease-out), transform 0.85s var(--ease-out);
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.09s; }
.reveal[data-delay="2"] { transition-delay: 0.18s; }
.reveal[data-delay="3"] { transition-delay: 0.27s; }

/* ============================================================================
   响应式
   ============================================================================ */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .about { grid-template-columns: 1fr; gap: 38px; }
  .about__side { order: -1; }
}

@media (max-width: 760px) {
  .nav__toggle { display: flex; }
  .nav__menu {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 16px 20px 24px;
    background: rgba(8, 6, 15, 0.97);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease-out), visibility 0.3s;
  }
  .nav__menu.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav__menu a { padding: 13px 16px; font-size: 16px; border-radius: var(--radius-sm); }
  .nav__cta { margin: 8px 0 0; text-align: center; font-size: 15px !important; }

  .section { padding: 80px 0; }
  .hero { padding-top: calc(var(--nav-h) + 48px); }
  .hero__scroll { display: none; }
  .work { padding: 26px 20px 24px; }
  .portrait { max-width: 260px; }
  .contact { padding: 18px 20px; }
  .to-top { right: 16px; bottom: 16px; }
  .lightbox { padding: 58px 12px 26px; }
  .lightbox__img { max-height: 64vh; }
  .lightbox__nav--prev { left: 6px; }
  .lightbox__nav--next { right: 6px; }
  .lightbox__close { top: 10px; right: 10px; }
}

@media (max-width: 430px) {
  .container { padding: 0 18px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .card__links { gap: 14px; }
  .marquee__track { gap: 22px; }
}

/* ============================================================================
   无障碍：减弱动效
   ============================================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero__canvas, .aurora { display: none; }
  .hero__title { background-position: 50% center; }
  .marquee__track { animation: none; }
}

/* ============================================================================
   打印（Ctrl+P 直接当简历用）
   ============================================================================ */
@media print {
  body { background: #fff; color: #111; }
  body::before, .bg-grid, .aurora, .hero__canvas, .nav, .to-top, .hero__scroll,
  .hero__actions, .footer, .lightbox, .marquee, .scroll-bar { display: none !important; }
  .terminal, .card, .stat, .contact, .skill-group, .about__facts li, .work,
  .tags span, .portrait { background: #fff !important; box-shadow: none !important; border-color: #ccc !important; }
  .terminal::before, .card::before, .card::after, .contact::before, .skill-group::before { display: none !important; }
  .hero { min-height: auto; padding: 0 0 20px; }
  .hero__inner { grid-template-columns: 1fr; gap: 20px; }
  .hero__title, .stat b, .work__title {
    color: #111 !important;
    -webkit-text-fill-color: #111;
    background: none !important;
  }
  .section { padding: 18px 0; page-break-inside: avoid; }
  .section--alt { background: #fff; }
  .reveal { opacity: 1 !important; transform: none !important; }
  a { color: #111 !important; }
}