/* =====================================================================
   北岸天下 · 科幻科技风 UI
   纯手写，零依赖。深空暗底 + 霓虹光晕 + HUD 玻璃拟态
   ===================================================================== */

:root {
  --bg: #04060c;
  --bg-soft: #070b14;
  --panel: rgba(14, 22, 38, 0.55);
  --panel-2: rgba(10, 16, 30, 0.72);
  --line: rgba(90, 180, 255, 0.14);
  --line-strong: rgba(90, 200, 255, 0.42);
  --cyan: #3fe0ff;
  --cyan-deep: #0b7f9e;
  --violet: #8b5cf6;
  --violet-soft: #a78bfa;
  --pink: #ff3ea5;
  --green: #34e5a4;
  --text: #e8f2ff;
  --muted: #8a9cb8;
  --muted-2: #5f7089;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Consolas,
    "Liberation Mono", Menlo, monospace;
  --radius: 16px;
  --maxw: 1240px;
}

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

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei",
    "Helvetica Neue", Helvetica, Arial, sans-serif;
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* 背景：深处辉光 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -4;
  pointer-events: none;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(63, 224, 255, 0.13), transparent 62%),
    radial-gradient(820px 520px at 88% 4%, rgba(139, 92, 246, 0.13), transparent 62%),
    radial-gradient(1100px 700px at 50% 112%, rgba(63, 224, 255, 0.07), transparent 62%),
    var(--bg);
}

/* 背景：坐标网格 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(80, 160, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(80, 160, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 30%, #000 20%, transparent 85%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 20%, transparent 85%);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

::selection {
  background: rgba(63, 224, 255, 0.28);
  color: #fff;
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: #05080f;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(63, 224, 255, 0.45), rgba(139, 92, 246, 0.45));
  border-radius: 10px;
  border: 2px solid #05080f;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(63, 224, 255, 0.75), rgba(139, 92, 246, 0.75));
}

/* 鼠标光晕 */
.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 460px;
  height: 460px;
  margin: -230px 0 0 -230px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(circle, rgba(63, 224, 255, 0.075), transparent 62%);
  opacity: 0;
  transition: opacity 0.4s ease;
  will-change: transform;
}

/* ============================ 顶部 HUD 导航 ============================ */
.hud-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

.hud-nav::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(5, 9, 17, 0.55);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: background 0.35s ease, border-color 0.35s ease;
}

.hud-nav.scrolled::before {
  background: rgba(5, 9, 17, 0.86);
  border-bottom-color: var(--line);
}

.nav-inner {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  font-size: 15px;
  color: #04121a;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  box-shadow: 0 0 22px rgba(63, 224, 255, 0.45);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-text b {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.logo-text em {
  font-family: var(--mono);
  font-style: normal;
  font-size: 0.6rem;
  letter-spacing: 0.32em;
  color: var(--muted-2);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  position: relative;
  padding: 9px 14px;
  font-size: 0.9rem;
  color: var(--muted);
  border-radius: 9px;
  transition: color 0.25s ease, background 0.25s ease;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(63, 224, 255, 0.07);
}

.nav-links a.active {
  color: var(--cyan);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  box-shadow: 0 0 8px var(--cyan);
}

.nav-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.hud-clock {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--muted-2);
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.16em;
  color: var(--green);
  padding: 5px 10px;
  border: 1px solid rgba(52, 229, 164, 0.28);
  border-radius: 999px;
  background: rgba(52, 229, 164, 0.06);
}

.nav-status i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.72); }
}

/* ================================ HERO ================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 140px 24px 90px;
  overflow: hidden;
}

#fx {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.9;
}

/* 透视网格地面 */
.hero-grid {
  position: absolute;
  left: 50%;
  bottom: -6%;
  width: 240%;
  height: 52%;
  z-index: 1;
  pointer-events: none;
  transform: translateX(-50%) perspective(340px) rotateX(64deg);
  transform-origin: bottom center;
  background-image:
    linear-gradient(rgba(63, 224, 255, 0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(63, 224, 255, 0.3) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to top, #000 0%, transparent 78%);
  -webkit-mask-image: linear-gradient(to top, #000 0%, transparent 78%);
  opacity: 0.45;
  animation: gridSlide 5s linear infinite;
}

@keyframes gridSlide {
  from { background-position: 0 0; }
  to { background-position: 0 64px; }
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(63, 224, 255, 0.06);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 30px;
}

.hero-badge i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulse 1.6s ease-in-out infinite;
}

.hero-title {
  font-size: clamp(2.5rem, 7.2vw, 5.1rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: 26px;
}

.hero-title .grad {
  background: linear-gradient(100deg, #3fe0ff 0%, #a78bfa 45%, #3fe0ff 90%);
  background-size: 220% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shine 7s linear infinite;
}

@keyframes shine {
  to { background-position: 220% center; }
}

.hero-type {
  font-family: var(--mono);
  font-size: clamp(0.92rem, 2.2vw, 1.15rem);
  color: var(--muted);
  min-height: 1.9em;
  margin-bottom: 18px;
}

.hero-type .caret {
  display: inline-block;
  width: 9px;
  height: 1.05em;
  margin-left: 3px;
  vertical-align: -0.18em;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: blink 1s steps(2) infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-desc {
  max-width: 640px;
  margin: 0 auto 38px;
  color: var(--muted);
  font-size: 1.02rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 14px 30px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1),
    box-shadow 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.btn-primary {
  color: #04121a;
  background: linear-gradient(135deg, var(--cyan), #6ee7ff 45%, var(--violet-soft));
  box-shadow: 0 10px 34px -12px rgba(63, 224, 255, 0.85);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 46px -12px rgba(63, 224, 255, 0.95);
}

.btn-ghost {
  color: var(--text);
  border-color: var(--line-strong);
  background: rgba(63, 224, 255, 0.04);
}

.btn-ghost:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
  background: rgba(63, 224, 255, 0.1);
  box-shadow: 0 12px 34px -16px rgba(63, 224, 255, 0.8);
}

/* 指标条 */
.hero-stats {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  width: min(880px, 100%);
  margin: 62px auto 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.stat {
  background: rgba(8, 13, 24, 0.82);
  padding: 22px 16px;
  text-align: center;
}

.stat b {
  display: block;
  font-family: var(--mono);
  font-size: clamp(1.35rem, 3.4vw, 1.9rem);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.stat b em {
  font-style: normal;
  color: var(--cyan);
}

.stat span {
  display: block;
  margin-top: 6px;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--muted-2);
  text-transform: uppercase;
}

.hero-scroll {
  position: absolute;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.28em;
  color: var(--muted-2);
}

.hero-scroll i {
  width: 1px;
  height: 42px;
  background: linear-gradient(180deg, var(--cyan), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { opacity: 0.25; transform: scaleY(0.55); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ============================== 通用区块 ============================== */
.section {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 104px 24px;
  z-index: 2;
}

.sec-head {
  margin-bottom: 52px;
}

.sec-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.28em;
  color: var(--cyan);
  text-transform: uppercase;
}

.sec-tag::before {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.sec-title {
  margin-top: 14px;
  font-size: clamp(1.7rem, 3.8vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.sec-desc {
  margin-top: 14px;
  max-width: 640px;
  color: var(--muted);
}

.sec-head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.sec-more {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(63, 224, 255, 0.3);
  transition: color 0.25s ease, border-color 0.25s ease;
}

.sec-more:hover {
  color: #fff;
  border-color: #fff;
}

/* ============================== 文章卡片 ============================== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 22px;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 15px;
  padding: 28px 26px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(158deg, rgba(16, 26, 44, 0.72), rgba(8, 13, 24, 0.62));
  overflow: hidden;
  transition: transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1),
    border-color 0.45s ease, box-shadow 0.45s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* 鼠标跟随的内部辉光 */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.45s ease;
  background: radial-gradient(
    440px circle at var(--mx, 50%) var(--my, 0%),
    rgba(63, 224, 255, 0.14),
    transparent 46%
  );
  pointer-events: none;
}

/* 顶部扫光线 */
.card::after {
  content: "";
  position: absolute;
  top: 0;
  left: -40%;
  width: 40%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover {
  transform: translateY(-7px);
  border-color: var(--line-strong);
  box-shadow: 0 26px 64px -26px rgba(63, 224, 255, 0.5);
}

.card:hover::before { opacity: 1; }

.card:hover::after {
  opacity: 1;
  animation: cardSweep 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes cardSweep {
  from { left: -40%; }
  to { left: 110%; }
}

.card-top {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--muted-2);
}

.chip {
  padding: 4px 11px;
  border-radius: 999px;
  border: 1px solid rgba(139, 92, 246, 0.36);
  background: rgba(139, 92, 246, 0.12);
  color: var(--violet-soft);
  letter-spacing: 0.08em;
}

.card h3 {
  position: relative;
  z-index: 1;
  font-size: 1.16rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  transition: color 0.3s ease;
}

.card:hover h3 { color: var(--cyan); }

.card p {
  position: relative;
  z-index: 1;
  flex: 1;
  font-size: 0.9rem;
  color: var(--muted);
}

.card-foot {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid rgba(90, 180, 255, 0.1);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.card-foot .arrow {
  transition: transform 0.35s ease;
}

.card:hover .card-foot .arrow { transform: translateX(6px); }

/* ============================== 技术栈 ============================== */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 20px;
}

.skill {
  padding: 24px 24px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(9, 14, 26, 0.6);
  transition: border-color 0.35s ease, transform 0.35s ease;
}

.skill:hover {
  border-color: var(--line-strong);
  transform: translateY(-4px);
}

.skill-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
}

.skill-top b {
  font-size: 1rem;
  font-weight: 600;
}

.skill-top span {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--cyan);
}

.bar {
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.07);
  overflow: hidden;
}

.bar i {
  display: block;
  width: 0;
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  box-shadow: 0 0 14px rgba(63, 224, 255, 0.55);
  transition: width 1.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.skill-note {
  margin-top: 12px;
  font-size: 0.82rem;
  color: var(--muted-2);
}

/* ============================== 关于 · 终端 ============================== */
.about-wrap {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 34px;
  align-items: start;
}

.term {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(5, 9, 17, 0.86);
  overflow: hidden;
  box-shadow: 0 30px 70px -40px rgba(63, 224, 255, 0.5);
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
}

.term-bar i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.term-bar i:nth-child(1) { background: #ff5f57; }
.term-bar i:nth-child(2) { background: #febc2e; }
.term-bar i:nth-child(3) { background: #28c840; }

.term-bar span {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  color: var(--muted-2);
}

.term-body {
  padding: 24px;
  font-family: var(--mono);
  font-size: 0.86rem;
  line-height: 2.1;
  color: #a9bed8;
}

.term-body .k { color: var(--cyan); }
.term-body .s { color: var(--green); }
.term-body .c { color: var(--muted-2); }
.term-body .v { color: var(--violet-soft); }

.about-text h3 {
  font-size: 1.35rem;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.about-text p {
  color: var(--muted);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}

.tag-row span {
  padding: 6px 13px;
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(63, 224, 255, 0.04);
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.tag-row span:hover {
  color: var(--cyan);
  border-color: var(--line-strong);
  background: rgba(63, 224, 255, 0.1);
}

/* ============================== 页脚 ============================== */
.site-footer {
  position: relative;
  z-index: 2;
  margin-top: 60px;
  padding: 56px 24px 44px;
  border-top: 1px solid var(--line);
  background: rgba(4, 7, 14, 0.72);
  text-align: center;
}

.footer-logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: linear-gradient(100deg, #3fe0ff, #a78bfa);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 14px;
}

.footer-line {
  font-size: 0.84rem;
  color: var(--muted-2);
  margin-bottom: 6px;
}

.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 22px 0 24px;
  font-size: 0.84rem;
}

.footer-links a {
  color: var(--muted);
  transition: color 0.25s ease;
}

.footer-links a:hover { color: var(--cyan); }

.footer-icp {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted-2);
}

.footer-icp a {
  color: var(--muted-2);
  transition: color 0.25s ease;
}

.footer-icp a:hover { color: var(--cyan); }

.footer-copy {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px dashed rgba(90, 180, 255, 0.12);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: #45536b;
}

/* ============================== 文章页 ============================== */
.page-head {
  position: relative;
  z-index: 2;
  max-width: 840px;
  margin: 0 auto;
  padding: 148px 24px 40px;
}

.crumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--muted-2);
  margin-bottom: 24px;
  transition: color 0.25s ease;
}

.crumb:hover { color: var(--cyan); }

.article-title {
  font-size: clamp(1.8rem, 4.6vw, 2.9rem);
  font-weight: 750;
  line-height: 1.25;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--muted-2);
}

.article-main {
  position: relative;
  z-index: 2;
  max-width: 840px;
  margin: 0 auto;
  padding: 0 24px 90px;
}

.article-card {
  padding: 44px 46px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(165deg, rgba(14, 22, 38, 0.7), rgba(7, 11, 20, 0.62));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.article-body {
  font-size: 1.03rem;
  line-height: 2.05;
  color: #c3d2e6;
}

.article-body p { margin-bottom: 22px; }

.article-body h2 {
  position: relative;
  margin: 46px 0 20px;
  padding-left: 18px;
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

.article-body h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.3em;
  bottom: 0.3em;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  box-shadow: 0 0 12px rgba(63, 224, 255, 0.7);
}

.article-body strong {
  color: var(--text);
  font-weight: 650;
}

.article-body ul,
.article-body ol {
  margin: 0 0 22px 22px;
  color: #c3d2e6;
}

.article-body li { margin-bottom: 9px; }

.article-body code {
  padding: 2px 8px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 0.88em;
  color: var(--cyan);
  background: rgba(63, 224, 255, 0.1);
  border: 1px solid rgba(63, 224, 255, 0.2);
}

.article-body blockquote {
  margin: 26px 0;
  padding: 18px 22px;
  border-left: 3px solid var(--violet);
  border-radius: 0 12px 12px 0;
  background: rgba(139, 92, 246, 0.09);
  color: #cbd8ea;
}

.article-foot {
  max-width: 840px;
  margin: 0 auto;
  padding: 0 24px 40px;
  position: relative;
  z-index: 2;
}

.more-block {
  padding: 28px 30px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(9, 14, 26, 0.6);
}

.more-block h4 {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 18px;
}

.more-block ul { list-style: none; }

.more-block li + li { margin-top: 12px; }

.more-block a {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.94rem;
  color: var(--muted);
  transition: color 0.25s ease, transform 0.25s ease;
}

.more-block a::before {
  content: "▸";
  color: var(--cyan);
  font-size: 0.8rem;
}

.more-block a:hover {
  color: var(--text);
  transform: translateX(5px);
}

.loading {
  color: var(--muted-2);
  font-family: var(--mono);
  font-size: 0.9rem;
}

/* ============================== 滚动显现 ============================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.85s cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 0.85s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

/* ============================== 响应式 ============================== */
@media (max-width: 960px) {
  .about-wrap {
    grid-template-columns: 1fr;
  }
  .nav-links { display: none; }
}

@media (max-width: 720px) {
  .cursor-glow { display: none; }

  .section { padding: 76px 20px; }

  .hero { padding: 120px 20px 70px; }

  .hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 44px;
  }

  .stat { padding: 18px 12px; }

  .hero-scroll { display: none; }

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

  .article-card { padding: 28px 22px; }

  .page-head { padding: 122px 20px 32px; }

  .article-foot { padding: 0 20px 30px; }

  .term-body { padding: 18px; font-size: 0.78rem; }

  .hud-clock { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}