/* =========================================================
   侠客行 AI 夜校 · 官网样式
   Dark / Tech / Glassmorphism / Neon Gradient
   ========================================================= */

:root {
  --bg-0: #05060d;
  --bg-1: #0a0c1a;
  --bg-2: #11142a;
  --ink-0: #ffffff;
  --ink-1: #e6e8ff;
  --ink-2: #a8aed1;
  --ink-3: #6b7099;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --glass: rgba(20, 24, 50, 0.55);
  --glass-strong: rgba(28, 32, 64, 0.7);
  --cyan: #7CF7FF;
  --blue: #4D8BFF;
  --purple: #8A7CFF;
  --pink: #FF7CC2;
  --gold: #FFD37C;
  --green: #6CF7B5;
  --grad-1: linear-gradient(135deg, #7CF7FF 0%, #4D8BFF 50%, #8A7CFF 100%);
  --grad-2: linear-gradient(135deg, #FF7CC2 0%, #8A7CFF 50%, #4D8BFF 100%);
  --grad-3: linear-gradient(135deg, #FFD37C 0%, #FF7CC2 50%, #8A7CFF 100%);
  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-glow: 0 20px 60px -20px rgba(124, 247, 255, 0.35), 0 6px 20px rgba(0,0,0,0.4);
  --shadow-glow-soft: 0 10px 40px -10px rgba(138, 124, 255, 0.25);
  --container: 1240px;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

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

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  background: var(--bg-0);
  color: var(--ink-1);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-y: none;
}
body.menu-open { overflow: hidden; }

button { -webkit-appearance: none; appearance: none; }
a, button { touch-action: manipulation; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: max(24px, env(safe-area-inset-left));
  padding-right: max(24px, env(safe-area-inset-right));
  width: 100%;
}

/* ============ BACKGROUND CANVAS / DECOR ============ */
#bg-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -3;
  background: radial-gradient(ellipse at 20% 0%, #1a1d4a 0%, transparent 50%),
              radial-gradient(ellipse at 80% 100%, #2a1545 0%, transparent 50%),
              linear-gradient(180deg, #05060d 0%, #0a0c1a 100%);
}

.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(124,247,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,247,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 0%, transparent 80%);
  pointer-events: none;
}

.glow-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  z-index: -2;
  pointer-events: none;
  animation: orb-float 20s ease-in-out infinite;
}
.glow-orb--1 { width: 500px; height: 500px; top: -100px; left: -100px;
  background: radial-gradient(circle, #4D8BFF 0%, transparent 70%); animation-delay: 0s;}
.glow-orb--2 { width: 400px; height: 400px; bottom: -50px; right: -50px;
  background: radial-gradient(circle, #8A7CFF 0%, transparent 70%); animation-delay: -7s;}
.glow-orb--3 { width: 350px; height: 350px; top: 40%; right: 30%;
  background: radial-gradient(circle, #7CF7FF 0%, transparent 70%); animation-delay: -14s; opacity: 0.25;}

@keyframes orb-float {
  0%, 100% { transform: translate(0,0) scale(1); }
  33%      { transform: translate(80px, -60px) scale(1.1); }
  66%      { transform: translate(-60px, 50px) scale(0.95); }
}

/* ============ GRADIENT TEXT / UTILS ============ */
.grad-text {
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-weight: 800;
}
.grad-text2 {
  background: var(--grad-2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-weight: 800;
}

.glass {
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.glass::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 50%);
  pointer-events: none;
}

/* ============ NAV ============ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 14px 0;
  padding-top: max(14px, env(safe-area-inset-top));
  transition: background 0.3s ease, padding 0.3s ease, border-color 0.3s ease;
}
.nav.scrolled {
  background: rgba(5, 6, 13, 0.78);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
  padding: 10px 0;
  padding-top: max(10px, env(safe-area-inset-top));
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  width: auto;
  background: transparent;
  border: none;
  padding: 0;
  transition: transform 0.3s ease, filter 0.3s ease;
  filter: drop-shadow(0 4px 12px rgba(124, 247, 255, 0.28));
  flex-shrink: 0;
}
.nav__brand:hover .brand-mark {
  transform: rotate(-3deg) scale(1.05);
  filter: drop-shadow(0 6px 18px rgba(124, 247, 255, 0.6));
}
.brand-mark__img {
  height: 100%;
  width: auto;
  object-fit: contain;
  display: block;
  background: transparent;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text__zh {
  font-family: 'ZCOOL XiaoWei', 'Noto Sans SC', serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-0);
  letter-spacing: 1px;
}
.brand-text__en {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ink-3);
  letter-spacing: 1.5px;
  margin-top: 2px;
}
.nav__menu {
  display: flex;
  gap: 28px;
  font-size: 14px;
  color: var(--ink-2);
}
.nav__menu a {
  position: relative;
  transition: color 0.25s ease;
  padding: 4px 0;
}
.nav__menu a:hover { color: var(--ink-0); }
.nav__menu a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: var(--grad-1);
  transition: width 0.3s ease;
}
.nav__menu a:hover::after { width: 100%; }

.nav__highlight {
  color: var(--cyan) !important;
  position: relative;
}
.nav__highlight::before {
  content: '';
  position: absolute;
  top: 50%;
  right: -10px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  transform: translateY(-50%);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: translateY(-50%) scale(1); }
  50%      { opacity: 0.5; transform: translateY(-50%) scale(1.4); }
}

.nav__cta {
  flex-shrink: 0;
}

.nav__toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  background: rgba(124, 247, 255, 0.06);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  cursor: pointer;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
  z-index: 1001;
}
.nav__toggle:active { transform: scale(0.92); background: rgba(124, 247, 255, 0.12); }
.nav__toggle-bar {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 22px;
  height: 2px;
  background: var(--ink-0);
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform 0.35s cubic-bezier(.4,0,.2,1), opacity 0.2s ease, background 0.3s ease;
}
.nav__toggle-bar:nth-child(1) { transform: translate(-50%, calc(-50% - 7px)); }
.nav__toggle-bar:nth-child(3) { transform: translate(-50%, calc(-50% + 7px)); }
.nav__toggle[aria-expanded="true"] {
  background: rgba(124, 247, 255, 0.12);
  border-color: rgba(124, 247, 255, 0.35);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translate(-50%, -50%) rotate(45deg);
  background: var(--cyan);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translate(-50%, -50%) rotate(-45deg);
  background: var(--cyan);
}

/* 抽屉菜单遮罩层 */
.nav__backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 6, 13, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 998;
}
.nav__backdrop.is-active {
  opacity: 1;
  visibility: visible;
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn--primary {
  background: var(--grad-1);
  color: #0a0c1a;
  font-weight: 700;
  box-shadow: 0 8px 28px -10px rgba(124, 247, 255, 0.6);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px -10px rgba(124, 247, 255, 0.9);
}
.btn--ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line-strong);
  color: var(--ink-1);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--cyan);
  color: var(--cyan);
}
.btn--lg {
  padding: 14px 28px;
  font-size: 15px;
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 160px 0 80px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero__inner {
  position: relative;
  z-index: 2;
  text-align: center;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(124, 247, 255, 0.06);
  font-size: 13px;
  color: var(--ink-2);
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}
.hero__badge .dot {
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--cyan);
  animation: pulse 1.6s ease-in-out infinite;
}

/* Brand slogan in hero */
.hero__slogan {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 24px;
  font-family: 'ZCOOL XiaoWei', 'Noto Sans SC', serif;
  position: relative;
}
.hero__slogan .slogan-rule {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  flex-shrink: 0;
}
.hero__slogan .slogan-text {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: clamp(20px, 2.6vw, 30px);
  letter-spacing: 4px;
  line-height: 1.4;
  color: var(--ink-0);
  white-space: nowrap;
  text-shadow: 0 2px 14px rgba(124, 247, 255, 0.25);
}
.hero__slogan .slogan-half em {
  font-style: normal;
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 0 2px;
  font-weight: 700;
}
.hero__slogan .slogan-dot {
  color: var(--cyan);
  font-size: 0.7em;
  opacity: 0.8;
  transform: translateY(-2px);
}

.hero__title {
  font-family: 'ZCOOL XiaoWei', 'Noto Sans SC', serif;
  font-size: clamp(40px, 7vw, 84px);
  line-height: 1.15;
  font-weight: 700;
  color: var(--ink-0);
  margin-bottom: 28px;
  letter-spacing: 2px;
}
.hero__title-line { display: block; }
.hero__title em {
  font-style: normal;
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
}
.hero__title em::before {
  content: '';
  position: absolute;
  inset: -8px -4px;
  background: var(--grad-1);
  opacity: 0.15;
  filter: blur(20px);
  z-index: -1;
}

.hero__sub {
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--ink-2);
  max-width: 760px;
  margin: 0 auto 40px;
  line-height: 1.9;
}
.hero__sub strong { color: var(--ink-0); font-weight: 600; }

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 80px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 880px;
  margin: 0 auto;
}
.stat {
  padding: 24px 16px;
  background: rgba(20, 24, 50, 0.4);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  transition: all 0.3s ease;
}
.stat:hover {
  border-color: var(--cyan);
  background: rgba(124, 247, 255, 0.06);
  transform: translateY(-3px);
}
.stat__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 36px;
  font-weight: 700;
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 8px;
}
.stat__lbl {
  font-size: 13px;
  color: var(--ink-3);
}

/* Decorative chip on hero */
.hero__chip {
  position: absolute;
  bottom: 20px;
  right: 5%;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-3);
  background: rgba(10, 12, 26, 0.7);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  backdrop-filter: blur(12px);
  text-align: left;
  max-width: 360px;
  z-index: 1;
  box-shadow: var(--shadow-glow-soft);
  display: none;
}
@media (min-width: 1100px) { .hero__chip { display: block; } }
.chip-line { padding: 2px 0; }
.chip-prompt { color: var(--cyan); margin-right: 8px; }
.chip-ok { color: var(--green); margin-right: 8px; }
.typing .cursor {
  display: inline-block;
  animation: blink 1s step-end infinite;
  color: var(--cyan);
}
@keyframes blink { 50% { opacity: 0; } }

/* ============ SECTIONS COMMON ============ */
.section {
  padding: 120px 0;
  position: relative;
}
.section__head {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 64px;
}
.eyebrow {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--cyan);
  margin-bottom: 16px;
  padding: 6px 14px;
  background: rgba(124, 247, 255, 0.08);
  border: 1px solid rgba(124, 247, 255, 0.2);
  border-radius: 999px;
}
.eyebrow--hot {
  color: var(--gold);
  background: rgba(255, 211, 124, 0.08);
  border-color: rgba(255, 211, 124, 0.25);
}
.eyebrow--hot::before {
  content: '● ';
  color: var(--gold);
  animation: pulse 1.4s ease-in-out infinite;
}
.section__title {
  font-family: 'ZCOOL XiaoWei', 'Noto Sans SC', serif;
  font-size: clamp(28px, 4.2vw, 52px);
  line-height: 1.3;
  color: var(--ink-0);
  font-weight: 700;
  letter-spacing: 1px;
}
.section__title em { font-style: normal; color: var(--cyan); }
.section__lead {
  color: var(--ink-2);
  font-size: 16px;
  margin-top: 18px;
  line-height: 1.9;
}

/* ============ ABOUT ============ */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}
.about-card { padding: 32px; transition: all 0.4s ease; }
.about-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 247, 255, 0.3);
  box-shadow: var(--shadow-glow);
}
.about-card__icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-1);
  color: #0a0c1a;
  margin-bottom: 20px;
  box-shadow: 0 6px 20px -6px rgba(124,247,255,0.5);
}
.about-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--ink-0);
}
.about-card p {
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.85;
  margin-bottom: 18px;
}
.about-card b { color: var(--ink-0); font-weight: 600; }

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--ink-2);
  background: rgba(255,255,255,0.03);
  font-family: 'JetBrains Mono', monospace;
}
.tag--accent {
  border-color: rgba(124, 247, 255, 0.4);
  color: var(--cyan);
  background: rgba(124, 247, 255, 0.06);
}

.about-quote {
  padding: 40px 48px;
  text-align: center;
  font-size: 18px;
  line-height: 1.9;
  color: var(--ink-1);
  position: relative;
}
.about-quote .quote-mark {
  position: absolute;
  top: 10px;
  left: 30px;
  font-size: 90px;
  font-family: 'Georgia', serif;
  color: var(--cyan);
  opacity: 0.2;
  line-height: 1;
}

/* ============ POSITIONS ============ */
.positions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.pos-card {
  padding: 36px 28px 32px;
  transition: all 0.4s ease;
  cursor: default;
  position: relative;
}
.pos-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: var(--grad-1);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.pos-card:hover {
  transform: translateY(-6px);
  background: rgba(28, 32, 64, 0.7);
}
.pos-card:hover::after { opacity: 1; }

.pos-card__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 64px;
  font-weight: 700;
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.18;
  line-height: 1;
  position: absolute;
  top: 16px;
  right: 24px;
  transition: opacity 0.3s ease;
}
.pos-card:hover .pos-card__num { opacity: 0.4; }

.pos-card__icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(124, 247, 255, 0.08);
  border: 1px solid rgba(124, 247, 255, 0.2);
  color: var(--cyan);
  margin-bottom: 20px;
  transition: all 0.4s ease;
}
.pos-card:hover .pos-card__icon {
  background: var(--grad-1);
  color: #0a0c1a;
  border-color: transparent;
  transform: rotate(-6deg);
}
.pos-card__icon--big {
  width: 64px; height: 64px;
}
.pos-card__title {
  font-size: 19px;
  font-weight: 700;
  color: var(--ink-0);
  margin-bottom: 10px;
}
.pos-card__desc {
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.8;
}

.pos-card--ghost {
  background: linear-gradient(135deg, rgba(124,247,255,0.06), rgba(138,124,255,0.06));
  border-color: rgba(124, 247, 255, 0.2);
}

/* ============ RECRUIT (KEY NEW SECTION) ============ */
.section--recruit {
  position: relative;
  padding: 140px 0;
}
.recruit-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 211, 124, 0.12), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(255, 124, 194, 0.12), transparent 50%);
  pointer-events: none;
  z-index: 0;
}
.section--recruit .container { position: relative; z-index: 1; }

.recruit-head {
  text-align: center;
  max-width: 880px;
  margin: 0 auto 56px;
}
.recruit-head .section__title em {
  color: var(--gold);
  font-style: normal;
}
.recruit-pulse {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  margin: 0 auto 12px;
  position: relative;
}
.recruit-pulse span {
  width: 14px;
  height: 14px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--gold);
  position: relative;
}
.recruit-pulse span::before,
.recruit-pulse span::after {
  content: '';
  position: absolute;
  inset: -10px;
  border: 2px solid var(--gold);
  border-radius: 50%;
  animation: ripple 2s ease-out infinite;
  opacity: 0;
}
.recruit-pulse span::after { animation-delay: 1s; }
@keyframes ripple {
  0%   { opacity: 0.8; transform: scale(0.5); }
  100% { opacity: 0;   transform: scale(2.4); }
}

.recruit-block {
  padding: 32px;
  margin-bottom: 22px;
}
.block-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.block-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--grad-1);
  color: #0a0c1a;
  font-weight: 700;
}
.block-head h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink-0);
}
.block-text {
  color: var(--ink-2);
  margin-bottom: 18px;
  font-size: 15px;
  line-height: 1.85;
}

.tracks {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.track-pill {
  font-size: 15px;
  padding: 10px 22px;
  border-radius: 999px;
  background: rgba(124, 247, 255, 0.08);
  border: 1px solid rgba(124, 247, 255, 0.25);
  color: var(--ink-0);
  font-weight: 500;
  position: relative;
  transition: all 0.3s ease;
  cursor: default;
}
.track-pill:hover {
  transform: translateY(-2px);
  background: var(--grad-1);
  color: #0a0c1a;
  border-color: transparent;
  box-shadow: 0 8px 24px -8px rgba(124, 247, 255, 0.6);
}

.recruit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 22px;
  margin-bottom: 32px;
}
.recruit-grid .recruit-block { margin-bottom: 0; height: 100%; }

.check-list, .dim-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.check-list li {
  padding-left: 30px;
  position: relative;
  color: var(--ink-1);
  font-size: 14.5px;
}
.check-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 6px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--grad-1);
  display: flex;
  align-items: center;
  justify-content: center;
}
.check-list li::after {
  content: '';
  position: absolute;
  left: 5px; top: 11px;
  width: 8px; height: 4px;
  border-left: 2px solid #0a0c1a;
  border-bottom: 2px solid #0a0c1a;
  transform: rotate(-45deg);
}

.bp-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.bp-grid span {
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  color: var(--ink-1);
  text-align: center;
  transition: all 0.3s ease;
}
.bp-grid span:hover {
  border-color: var(--cyan);
  background: rgba(124, 247, 255, 0.06);
  color: var(--cyan);
}

.dim-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
}
.dim-list li span {
  flex-shrink: 0;
  width: 80px;
  color: var(--ink-1);
}
.dim-list li .bar {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.05);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}
.dim-list li .bar::after {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: var(--w);
  background: var(--grad-1);
  border-radius: 4px;
  box-shadow: 0 0 12px rgba(124,247,255,0.5);
}

/* Recruit CTA */
.recruit-cta {
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: center;
  border-color: rgba(255, 211, 124, 0.3);
  background: linear-gradient(135deg, rgba(255,211,124,0.04), rgba(20,24,50,0.55));
}
.recruit-cta__left h3 {
  font-size: 28px;
  font-weight: 700;
  margin: 14px 0 14px;
  color: var(--ink-0);
}
.recruit-cta__desc {
  color: var(--ink-2);
  margin-bottom: 24px;
  line-height: 1.9;
}
.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.contact-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}
.contact-card:hover {
  border-color: var(--cyan);
  background: rgba(124,247,255,0.06);
  transform: translateY(-2px);
}
.contact-card__icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--grad-1);
  color: #0a0c1a;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-card__lbl {
  font-size: 12px;
  color: var(--ink-3);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 1px;
}
.contact-card__val {
  font-size: 16px;
  color: var(--ink-0);
  font-weight: 600;
  margin-top: 2px;
}

/* CTA ring */
.cta-ring {
  position: relative;
  width: 280px;
  height: 280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cta-ring__core {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,211,124,0.15) 0%, rgba(20,24,50,0.9) 70%);
  border: 1px solid rgba(255,211,124,0.4);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px;
  z-index: 3;
  position: relative;
  backdrop-filter: blur(10px);
}
.cta-ring__label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 2px;
  margin-bottom: 6px;
}
.cta-ring__title {
  font-family: 'ZCOOL XiaoWei', serif;
  font-size: 48px;
  font-weight: 700;
  background: var(--grad-3);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 16px;
}
.cta-ring__core .btn {
  font-size: 12px;
  padding: 8px 14px;
}
.cta-ring__orbit {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px dashed rgba(255, 211, 124, 0.3);
  animation: rotate 16s linear infinite;
}
.cta-ring__orbit::after {
  content: '';
  position: absolute;
  top: -4px;
  left: 50%;
  width: 8px;
  height: 8px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--gold);
}
.cta-ring__orbit--2 {
  inset: 24px;
  border-color: rgba(124, 247, 255, 0.25);
  animation-duration: 22s;
  animation-direction: reverse;
}
.cta-ring__orbit--2::after { background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
@keyframes rotate { to { transform: rotate(360deg); } }

/* ============ GUESTS ============ */
.guests-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.guest-card {
  padding: 28px 24px;
  transition: all 0.4s ease;
  position: relative;
  text-align: left;
}
.guest-card:hover {
  transform: translateY(-6px);
  border-color: rgba(124,247,255,0.3);
  box-shadow: var(--shadow-glow);
}
.guest-card__avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--grad-1);
  color: #0a0c1a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'ZCOOL XiaoWei', serif;
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 18px;
  box-shadow: 0 8px 24px -8px rgba(124,247,255,0.5);
}
.guest-card__avatar--featured {
  background: var(--grad-3);
  box-shadow: 0 8px 24px -8px rgba(255, 211, 124, 0.6);
}
.guest-card__name {
  font-size: 19px;
  font-weight: 700;
  color: var(--ink-0);
  margin-bottom: 4px;
}
.guest-card__title {
  font-size: 13px;
  color: var(--cyan);
  margin-bottom: 14px;
  font-weight: 500;
}
.guest-card__bio {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.guest-card__bio li {
  padding-left: 14px;
  position: relative;
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.7;
}
.guest-card__bio li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 4px; height: 4px;
  background: var(--cyan);
  border-radius: 50%;
}

.guest-card--featured {
  border-color: rgba(255, 211, 124, 0.3);
  background: linear-gradient(135deg, rgba(255,211,124,0.06), rgba(20,24,50,0.55));
}
.guest-card--featured .guest-card__title { color: var(--gold); }

/* ============ PARTNERS ============ */
.partners-wrap {
  text-align: center;
}
.partners-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--ink-3);
  text-transform: uppercase;
  margin: 24px 0 20px;
}
.partners-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.partner-chip {
  padding: 14px 28px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  font-size: 15px;
  color: var(--ink-1);
  font-weight: 500;
  transition: border-color 0.3s ease, background 0.3s ease, color 0.3s ease, transform 0.3s ease;
  font-family: 'Noto Sans SC', sans-serif;
  white-space: nowrap;
  flex-shrink: 0;
}
.partner-chip:hover {
  border-color: var(--cyan);
  background: rgba(124,247,255,0.06);
  color: var(--cyan);
  transform: translateY(-2px);
}
.partner-chip--alt:hover {
  border-color: var(--purple);
  background: rgba(138, 124, 255, 0.08);
  color: var(--purple);
}

/* ============ MARQUEE (auto right-to-left) ============ */
.marquee {
  width: 100%;
  overflow: hidden;
  position: relative;
  padding: 8px 0 12px;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 8%, #000 92%, transparent 100%);
          mask-image: linear-gradient(90deg, transparent 0, #000 8%, #000 92%, transparent 100%);
}
.marquee__track {
  display: flex;
  width: max-content;
  gap: 14px;
  animation: marquee-rtl 38s linear infinite;
  will-change: transform;
}
.marquee__track--slow { animation-duration: 48s; }
.marquee__group {
  display: flex;
  gap: 14px;
  padding-right: 14px;
  flex-shrink: 0;
}
.marquee:hover .marquee__track { animation-play-state: paused; }

@keyframes marquee-rtl {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-50%, 0, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
}

/* ============ CONTACT BANNER ============ */
.contact-banner {
  padding: 56px;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 48px;
  align-items: center;
  border-color: rgba(124, 247, 255, 0.25);
}
.contact-banner__left .section__title { margin: 12px 0 16px; }
.contact-banner p {
  color: var(--ink-2);
  margin-bottom: 24px;
}

.qr-card {
  background: var(--grad-1);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  color: #0a0c1a;
  box-shadow: 0 12px 36px -12px rgba(124,247,255,0.6);
}
.qr-image-wrap {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 12px;
  margin-bottom: 14px;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}
.qr-image {
  width: 100%;
  max-width: 200px;
  height: auto;
  display: block;
  border-radius: 6px;
}
.qr-card__title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}
.qr-card__sub { font-size: 12px; opacity: 0.8; }

/* ============ FOOTER ============ */
.footer {
  border-top: 1px solid var(--line);
  background: rgba(5, 6, 13, 0.6);
  backdrop-filter: blur(10px);
  padding-top: 60px;
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer__brand-row {
  display: flex;
  align-items: center;
  gap: 14px;
}
.footer__logo {
  height: 54px;
  width: auto;
  object-fit: contain;
  background: transparent;
  border: none;
  padding: 0;
  flex-shrink: 0;
  filter: drop-shadow(0 4px 12px rgba(124, 247, 255, 0.22));
}
.footer__brand .brand-text__zh {
  font-size: 22px;
  margin-bottom: 2px;
}
.footer__slogan {
  font-family: 'ZCOOL XiaoWei', 'Noto Sans SC', serif;
  font-size: 16px;
  letter-spacing: 2px;
  background: var(--grad-1);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-top: 18px;
  font-weight: 600;
}
.footer__sub {
  color: var(--ink-3);
  font-size: 13px;
  margin-top: 6px;
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer__col h4 {
  font-size: 14px;
  color: var(--ink-0);
  margin-bottom: 16px;
  font-weight: 600;
}
.footer__col a, .footer__col span {
  display: block;
  font-size: 13px;
  color: var(--ink-3);
  margin-bottom: 10px;
  transition: color 0.3s ease;
}
.footer__col a:hover { color: var(--cyan); }
.footer__bottom {
  border-top: 1px solid var(--line);
  padding: 24px 0;
  text-align: center;
  font-size: 12px;
  color: var(--ink-3);
  font-family: 'JetBrains Mono', monospace;
}

/* ============ REVEAL ANIMATIONS ============ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1080px) {
  .positions-grid { grid-template-columns: repeat(2, 1fr); }
  .guests-grid { grid-template-columns: repeat(3, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .recruit-grid { grid-template-columns: 1fr; }
  .recruit-cta { grid-template-columns: 1fr; padding: 36px; }
  .contact-banner { grid-template-columns: 1fr; padding: 36px; }
  .cta-ring { width: 240px; height: 240px; }
  .cta-ring__core { width: 180px; height: 180px; }
  .footer__inner { grid-template-columns: 1fr; }
}

/* ============ MOBILE (≤860px) ============ */
@media (max-width: 860px) {
  .section { padding: 72px 0; }
  .section__head { margin-bottom: 44px; }

  /* Nav: 隐藏 PC 菜单，显示汉堡 */
  .nav__cta { display: none; }
  .nav__toggle { display: flex; }

  /* 品牌缩小，避免挤占按钮空间 */
  .nav__inner { gap: 12px; }
  .nav__brand { gap: 10px; min-width: 0; }
  .brand-mark { height: 36px; }
  .brand-text { min-width: 0; }
  .brand-text__zh { font-size: 16px; letter-spacing: 0.5px; white-space: nowrap; }
  .brand-text__en { display: none; }

  /* 抽屉菜单：从右侧滑入 */
  .nav__menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(86vw, 320px);
    padding-top: calc(72px + env(safe-area-inset-top));
    padding-left: 28px;
    padding-right: 28px;
    padding-bottom: calc(28px + env(safe-area-inset-bottom));
    background: linear-gradient(180deg, rgba(10, 12, 26, 0.98) 0%, rgba(17, 20, 42, 0.98) 100%);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-left: 1px solid var(--line-strong);
    box-shadow: -24px 0 60px -20px rgba(0,0,0,0.6);
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 17px;
    transform: translate3d(100%, 0, 0);
    transition: transform 0.4s cubic-bezier(.4,0,.2,1);
    z-index: 999;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .nav__menu.is-open { transform: translate3d(0, 0, 0); }
  .nav__menu a {
    display: flex;
    align-items: center;
    padding: 14px 16px;
    border-radius: 12px;
    color: var(--ink-1);
    border: 1px solid transparent;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
  }
  .nav__menu a::after { display: none; }
  .nav__menu a:active {
    background: rgba(124, 247, 255, 0.08);
    border-color: rgba(124, 247, 255, 0.25);
    transform: scale(0.98);
  }
  .nav__menu .nav__highlight {
    background: linear-gradient(135deg, rgba(124,247,255,0.1), rgba(138,124,255,0.08));
    border-color: rgba(124, 247, 255, 0.3);
    margin-top: 4px;
  }
  .nav__menu .nav__highlight::before {
    position: static;
    margin-right: 10px;
    transform: none;
  }

  /* 菜单内置一个"立即投递 BP"操作按钮 */
  .nav__menu .nav__menu-cta {
    margin-top: 24px;
    padding: 14px 18px;
    background: var(--grad-1);
    color: #0a0c1a;
    border-radius: 999px;
    font-weight: 700;
    justify-content: center;
    box-shadow: 0 10px 28px -12px rgba(124, 247, 255, 0.7);
  }
  .nav__menu .nav__menu-cta::after { display: none; }

  /* HERO */
  .hero { padding: 110px 0 56px; min-height: auto; }
  .hero__badge { font-size: 12px; padding: 5px 12px; margin-bottom: 22px; }
  .hero__slogan { gap: 10px; margin-bottom: 18px; }
  .hero__slogan .slogan-rule { width: 28px; }
  .hero__slogan .slogan-text {
    flex-direction: column;
    gap: 4px;
    letter-spacing: 3px;
    font-size: 18px;
  }
  .hero__slogan .slogan-dot { display: none; }
  .hero__title { margin-bottom: 20px; letter-spacing: 1px; }
  .hero__sub { font-size: 14.5px; line-height: 1.85; margin-bottom: 32px; }
  .hero__actions { gap: 12px; margin-bottom: 56px; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 14px; max-width: 100%; }
  .stat { padding: 18px 12px; }
  .stat__num { font-size: 28px; margin-bottom: 6px; }
  .stat__lbl { font-size: 12px; }

  /* SECTIONS */
  .about-grid { grid-template-columns: 1fr; gap: 16px; }
  .about-card { padding: 26px 22px; }
  .positions-grid { grid-template-columns: 1fr; gap: 14px; }
  .pos-card { padding: 28px 22px 24px; }
  .pos-card__num { font-size: 52px; top: 14px; right: 18px; }
  .guests-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .guest-card { padding: 22px 18px; }
  .guest-card__avatar { width: 52px; height: 52px; font-size: 22px; margin-bottom: 14px; }
  .guest-card__name { font-size: 17px; }
  .guest-card__bio li { font-size: 12.5px; }

  .bp-grid { grid-template-columns: 1fr 1fr; }
  .recruit-cta { padding: 28px 22px; gap: 28px; }
  .recruit-cta__left h3 { font-size: 22px; }
  .recruit-block { padding: 26px 22px; }
  .block-head h3 { font-size: 19px; }
  .track-pill { font-size: 13px; padding: 8px 16px; }

  .contact-banner { padding: 28px 22px; gap: 28px; }
  .about-quote { padding: 28px 22px; font-size: 15.5px; }
  .about-quote .quote-mark { font-size: 56px; left: 12px; top: 4px; }

  .contact-row { flex-direction: column; gap: 12px; }
  .contact-card { width: 100%; }

  /* FOOTER */
  .footer__cols { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer { padding-top: 48px; padding-bottom: env(safe-area-inset-bottom); }
}

/* ============ SMALL PHONES (≤480px) ============ */
@media (max-width: 480px) {
  .section { padding: 60px 0; }
  .guests-grid { grid-template-columns: 1fr; }
  .bp-grid { grid-template-columns: 1fr; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { justify-content: center; }
  .hero__title { letter-spacing: 0; }
  .hero__stats .stat { padding: 16px 10px; }
  .stat__num { font-size: 24px; }
  .partners-title { font-size: 11px; letter-spacing: 2px; }

  /* iPhone SE 等极窄屏 */
  .brand-text__zh { font-size: 15px; }
  .brand-mark { height: 32px; }
  .nav { padding: 10px 0; padding-top: max(10px, env(safe-area-inset-top)); }
  .nav.scrolled { padding: 8px 0; padding-top: max(8px, env(safe-area-inset-top)); }
}