/* ═══════════ ROOT VARIABLES ═══════════ */
:root{
  --deep-space:#030712;--gold:#c8965a;--gold-light:#e8c99b;
  --gold-dim:rgba(200,150,90,0.35);--gold-glow:rgba(200,150,90,0.18);
  --violet:#7c5ce7;--violet-glow:rgba(124,92,231,0.15);
  --text:#e8e4dd;--text-dim:#6b6560;--text-muted:#3d3834;
  --glass-bg:rgba(255,255,255,0.025);--glass-border:rgba(255,255,255,0.05);
  --glass-hover:rgba(200,150,90,0.08);--glass-hover-border:rgba(200,150,90,0.18);
}

/* ═══════════ GLOBAL RESET ═══════════ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scrollbar-width:none;-ms-overflow-style:none}
html::-webkit-scrollbar{display:none}
body{
  font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
  background:var(--deep-space);color:var(--text);line-height:1.7;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;scrollbar-width:none;-ms-overflow-style:none;
}
body::-webkit-scrollbar{display:none}
::selection{background:rgba(200,150,90,0.3);color:#fff}

/* ═══════════ NOISE ═══════════ */
.noise-overlay{
  position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.025;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:200px 200px;
}

/* ═══════════ STARFIELD ═══════════ */
.starfield{position:fixed;inset:0;z-index:0;pointer-events:none}
.starfield .star{
  position:absolute;border-radius:50%;background:#fff;
  animation:twinkle var(--tw-dur) ease-in-out infinite;
  animation-delay:var(--tw-delay);
  opacity:0;
}
@keyframes twinkle{0%,100%{opacity:.1}50%{opacity:var(--tw-peak,.4)}}

/* ═══════════ CONTEXT MENU ═══════════ */
.context-menu{
  position:fixed;z-index:9999;
  background:rgba(10,12,18,0.92);backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(200,150,90,0.15);
  border-radius:8px;padding:6px 0;min-width:160px;
  opacity:0;transform:scale(.95);
  pointer-events:none;transition:opacity .2s,transform .2s;
  box-shadow:0 8px 32px rgba(0,0,0,0.5);
}
.context-menu.visible{
  opacity:1;transform:scale(1);pointer-events:auto;
}
.context-menu a{
  display:block;padding:10px 20px;
  font-family:'SF Mono','Menlo','Monaco','Consolas',monospace;
  font-size:.78rem;color:var(--text-dim);text-decoration:none;
  letter-spacing:.06em;transition:all .2s;
}
.context-menu a:hover{
  background:rgba(200,150,90,0.12);color:var(--gold-light);
}

/* ═══════════ HERO ═══════════ */
.hero{
  position:relative;min-height:100vh;display:flex;
  align-items:center;justify-content:center;text-align:center;
  overflow:hidden;padding:120px 8% 80px;z-index:1;
}
.hero::after{
  content:'';position:absolute;inset:0;z-index:2;
  background:radial-gradient(ellipse at 60% 30%,rgba(124,92,231,0.06),transparent 60%),
             radial-gradient(ellipse at 30% 70%,rgba(200,150,90,0.04),transparent 60%);
  pointer-events:none;
}

/* ═══ Spectrum Bars ═══ */
.spectrum-stage{
  position:absolute;inset:0;z-index:1;pointer-events:none;overflow:hidden;
}
.spec-bar{
  position:absolute;bottom:0;width:var(--sb-w,3px);
  border-radius:2px 2px 0 0;
  background:linear-gradient(180deg,var(--sb-color),transparent);
  height:var(--sb-h);left:var(--sb-x);
  animation:spec-breathe var(--sb-dur,2.4s) ease-in-out infinite;
  animation-delay:var(--sb-delay,0s);
  opacity:.5;transform-origin:bottom center;
}
@keyframes spec-breathe{
  0%,100%{transform:scaleY(.7);opacity:.35}
  50%{transform:scaleY(1);opacity:.6}
}

/* ═══ Hero Content ═══ */
.hero-content{
  position:relative;z-index:3;max-width:800px;
  margin:0 auto;text-align:center;
  display:flex;flex-direction:column;align-items:center;
}
.hero-kicker{
  font-family:'SF Mono','Menlo','Monaco','Consolas',monospace;
  font-size:.72rem;letter-spacing:.2em;color:var(--gold-dim);
  margin-bottom:32px;text-transform:uppercase;
}
.hero-title{
  font-family:'Georgia','Songti SC','SimSun',serif;
  letter-spacing:-.03em;line-height:1.05;margin-bottom:32px;
}
.hero-title .line1{
  display:block;
  font-size:clamp(2.5rem,6vw,4.5rem);font-weight:400;
  color:var(--text);margin-bottom:8px;
}
.hero-title .line2{
  display:block;
  font-size:clamp(4rem,10vw,8rem);font-weight:700;font-style:italic;
  color:var(--gold-light);
  text-shadow:0 0 80px rgba(200,150,90,0.3),0 0 160px rgba(200,150,90,0.08);
  letter-spacing:-.04em;
}
.hero-sub{
  font-size:1rem;color:var(--text-dim);
  max-width:480px;line-height:1.7;margin-bottom:48px;
}

/* ═══ Hero CTA ═══ */
.hero-cta-wrap{
  position:relative;display:inline-flex;align-items:center;
}
.hero-cta{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 36px;font-size:.9rem;text-decoration:none;
  background:linear-gradient(135deg,var(--gold),#a87a3e);
  color:#0a0a0a;font-weight:600;letter-spacing:.02em;
  box-shadow:0 4px 28px rgba(200,150,90,0.22);
  transition:all .4s;position:relative;z-index:1;
}
.hero-cta:hover{
  box-shadow:0 8px 44px rgba(200,150,90,0.38);
  transform:translateY(-2px);
}
.hero-cta-ghost{
  position:absolute;inset:-12px;z-index:0;
  border:1px solid rgba(200,150,90,0.12);
  animation:cta-pulse 2.8s ease-in-out infinite;
  pointer-events:none;
}
@keyframes cta-pulse{
  0%,100%{opacity:0;transform:scale(.95)}
  50%{opacity:.5;transform:scale(1.05)}
}

/* ═══ Hero Stats Bar ═══ */
.hero-stats{
  display:flex;align-items:center;justify-content:center;gap:0;
  margin-top:60px;z-index:3;position:relative;
}
.hero-stat-item{
  text-align:center;padding:0 24px;
}
.hero-stat-value{
  display:block;font-family:'Georgia','Songti SC','SimSun',serif;
  font-size:2.2rem;font-weight:700;color:var(--gold-light);
  line-height:1.1;font-feature-settings:"tnum";
}
.hero-stat-label{
  display:block;font-size:.68rem;color:var(--text-dim);
  letter-spacing:.14em;text-transform:uppercase;margin-top:6px;
}
.hero-stat-divider{
  width:1px;height:20px;background:rgba(255,255,255,0.06);
  flex-shrink:0;
}

/* ═══ Scroll Hint ═══ */
.scroll-hint{
  position:absolute;bottom:40px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;z-index:3;
}
.scroll-hint span{
  font-family:'SF Mono','Menlo','Monaco','Consolas',monospace;
  font-size:.6rem;color:var(--text-muted);letter-spacing:.16em;text-transform:uppercase;
}
.scroll-line{
  width:1px;height:36px;
  background:linear-gradient(180deg,var(--gold-dim) 0%,transparent 100%);
  animation:scroll-flicker 2s ease-in-out infinite;
}
@keyframes scroll-flicker{0%,100%{opacity:.2}50%{opacity:.8}}

/* ═══════════ FEATURES ═══════════ */
.features-section{padding:120px 8%;position:relative;z-index:1}
.features-header{margin-bottom:64px}
.features-header .tag{
  font-family:'SF Mono','Menlo','Monaco','Consolas',monospace;
  font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold-dim);display:block;margin-bottom:16px;
}
.features-header h2{
  font-family:'Georgia','Songti SC','SimSun',serif;
  font-size:clamp(2rem,4vw,3.2rem);font-weight:700;
  letter-spacing:-.03em;color:var(--text);line-height:1.15;
}
.features-header h2 em{font-style:italic;color:var(--gold-light)}
.features-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  grid-auto-rows:minmax(220px,auto);
}
.feat-card{
  background:var(--glass-bg);border:1px solid var(--glass-border);
  padding:36px;display:flex;flex-direction:column;justify-content:center;
  transition:all .5s cubic-bezier(.25,.8,.25,1);position:relative;overflow:hidden;
  cursor:default;
}
.feat-card::before{
  content:'';position:absolute;inset:-1px;z-index:-1;
  background:linear-gradient(135deg,transparent 40%,rgba(200,150,90,0.06));
  opacity:0;transition:opacity .5s;
}
.feat-card:hover::before{opacity:1}
.feat-card:hover{
  border-color:var(--glass-hover-border);
  box-shadow:0 0 40px rgba(200,150,90,0.04),0 0 80px rgba(200,150,90,0.02);
  background:var(--glass-hover);
}
.feat-card:hover .feat-glow{
  box-shadow:0 0 30px rgba(200,150,90,0.15),0 0 60px rgba(200,150,90,0.05);
}
.feat-card.col-2{grid-column:span 2}
.feat-card.col-1{grid-column:span 1}
.feat-num{
  font-family:'Georgia','Songti SC','SimSun',serif;
  font-size:5rem;font-weight:700;line-height:1;color:transparent;
  -webkit-text-stroke:1px rgba(200,150,90,0.2);
  margin-bottom:8px;transition:all .5s;
}
.feat-card:hover .feat-num{-webkit-text-stroke-color:rgba(200,150,90,0.45)}
.feat-card h3{
  font-family:'Georgia','Songti SC','SimSun',serif;
  font-size:1.5rem;font-weight:700;letter-spacing:-.02em;
  color:var(--text);margin-bottom:12px;
  background:linear-gradient(135deg,var(--text),var(--text-dim));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.feat-card:hover h3{
  background:linear-gradient(135deg,var(--gold-light),var(--text));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.feat-card p{font-size:.85rem;color:var(--text-dim);line-height:1.65;max-width:380px}
.feat-glow{
  position:absolute;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,150,90,0.06),transparent 70%);
  top:-20px;right:-30px;pointer-events:none;transition:box-shadow .5s;
}

/* ═══════════ TERMINAL ═══════════ */
.terminal-section{padding:100px 8%;position:relative;z-index:1}
.terminal-section .tag{
  font-family:'SF Mono','Menlo','Monaco','Consolas',monospace;
  font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold-dim);display:block;margin-bottom:16px;
}
.terminal-section h2{
  font-family:'Georgia','Songti SC','SimSun',serif;
  font-size:clamp(2rem,4vw,3.2rem);font-weight:700;
  letter-spacing:-.03em;color:var(--text);line-height:1.15;margin-bottom:48px;
}
.terminal-section h2 em{font-style:italic;color:var(--gold-light)}
.terminal-window{
  max-width:720px;margin:0 auto;
  background:rgba(10,12,18,0.85);border:1px solid rgba(255,255,255,0.08);
  border-radius:10px;overflow:hidden;position:relative;
  box-shadow:0 20px 60px rgba(0,0,0,0.5),0 0 0 1px rgba(200,150,90,0.05);
  backdrop-filter:blur(10px);
}
.terminal-window::after{
  content:'';position:absolute;inset:0;pointer-events:none;z-index:10;
  background:linear-gradient(180deg,transparent 50%,rgba(124,92,231,0.015) 51%,transparent 52%);
  background-size:100% 4px;animation:scanlines 8s linear infinite;
  opacity:.3;
}
@keyframes scanlines{0%{background-position:0 0}100%{background-position:0 200px}}
.terminal-titlebar{
  display:flex;align-items:center;gap:8px;padding:12px 16px;
  background:rgba(255,255,255,0.03);border-bottom:1px solid rgba(255,255,255,0.05);
}
.terminal-dot{width:12px;height:12px;border-radius:50%}
.terminal-dot.red{background:#ff5f57}
.terminal-dot.yellow{background:#febc2e}
.terminal-dot.green{background:#28c840}
.terminal-title{
  flex:1;text-align:center;font-family:'SF Mono','Menlo','Monaco','Consolas',monospace;
  font-size:.7rem;color:var(--text-dim);letter-spacing:.04em;
}
.terminal-body{padding:24px 28px;min-height:140px;overflow-x:auto}
.terminal-line{
  font-family:'SF Mono','Menlo','Monaco','Consolas',monospace;
  font-size:.82rem;line-height:1.8;color:var(--text-dim);
  opacity:0;transform:translateY(6px);white-space:nowrap;
  transition:opacity .3s,transform .3s;
}
.terminal-line.visible{opacity:1;transform:translateY(0)}
.terminal-line .prompt{color:var(--violet)}
.terminal-line .cmd{color:var(--gold-light)}
.terminal-line .comment{color:var(--text-muted);font-style:italic}
.terminal-cursor{
  display:inline-block;width:8px;height:16px;background:var(--gold);
  animation:blink-cursor .9s step-end infinite;vertical-align:middle;margin-left:2px;
}
@keyframes blink-cursor{0%,100%{opacity:1}50%{opacity:0}}

/* ═══════════ CODA ═══════════ */
.coda-section{
  padding:80px 8% 120px;position:relative;z-index:1;
  text-align:center;
}
.coda-fade-bg{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,transparent 0%,rgba(124,92,231,0.03) 50%,transparent 100%);
}
.coda-inner{position:relative;z-index:2}
.coda-inner h2{
  font-family:'Georgia','Songti SC','SimSun',serif;
  font-size:clamp(2rem,4vw,3rem);font-weight:700;
  letter-spacing:-.03em;color:var(--text);margin-bottom:12px;
}
.coda-inner h2 em{font-style:italic;color:var(--gold-light)}
.coda-inner p{font-size:.95rem;color:var(--text-dim);margin-bottom:40px}
.coda-cta-wrap{position:relative;display:inline-flex;align-items:center}
.coda-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:15px 42px;font-size:.92rem;text-decoration:none;
  background:linear-gradient(135deg,var(--gold),#a87a3e);
  color:#0a0a0a;font-weight:600;letter-spacing:.02em;
  box-shadow:0 4px 30px rgba(200,150,90,0.2);
  transition:all .4s;position:relative;z-index:1;
}
.coda-cta:hover{
  box-shadow:0 6px 44px rgba(200,150,90,0.4);
  transform:translateY(-2px);
}
.coda-cta-breath{
  position:absolute;inset:-14px;z-index:0;
  border:1px solid rgba(200,150,90,0.08);
  border-radius:2px;animation:breath-glow 3s ease-in-out infinite;pointer-events:none;
}
@keyframes breath-glow{
  0%,100%{opacity:.15;box-shadow:0 0 20px rgba(200,150,90,0.05)}
  50%{opacity:.5;box-shadow:0 0 50px rgba(200,150,90,0.15)}
}

/* ═══════════ ANIMATIONS ═══════════ */
@keyframes fade-up{
  from{opacity:0;transform:translateY(40px)}
  to{opacity:1;transform:translateY(0)}
}
.anim-fade-up{
  opacity:0;transform:translateY(40px);
  transition:opacity .8s cubic-bezier(.25,.8,.25,1),transform .8s cubic-bezier(.25,.8,.25,1);
}
.anim-fade-up.visible{opacity:1;transform:translateY(0)}

/* ═══ Code Block ═══ */
.code-block{
  margin-top:52px;
  background:rgba(255,255,255,0.02);border:1px solid var(--glass-border);
  border-left:3px solid var(--gold-dim);padding:22px 28px;
  overflow-x:auto;font-family:'SF Mono','Menlo','Monaco','Consolas',monospace;
  font-size:.8rem;line-height:1.9;color:var(--text-dim);
  position:relative;white-space:pre;word-break:normal;overflow-wrap:normal;
}
.code-block .cm{color:var(--text-muted);font-style:italic}
.code-block .t{color:#7a8898}
.code-block .a{color:var(--text-dim)}
.code-block .v{color:var(--gold-light);font-weight:600}
.code-caption{
  margin-top:14px;font-size:.8rem;color:var(--text-muted);
  display:flex;align-items:center;gap:10px;
}
.code-caption kbd{
  font-family:'SF Mono','Menlo','Monaco','Consolas',monospace;
  background:rgba(255,255,255,0.06);padding:3px 10px;
  font-size:.74rem;color:var(--text-dim);border:1px solid var(--glass-border);
}