/* ============================================================
   Val — AI Product GTM & Global Growth
   Design: Clean, data-driven, bilingual-ready
   v2 — Enhanced with modern aesthetics
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  --color-bg: #0a0a0b;
  --color-surface: #111114;
  --color-surface-2: #18181b;
  --color-dark: #0a0a0b;
  --color-dark-2: #0f0f12;
  --color-dark-3: #141418;
  --color-teal: #c06c84;
  --color-teal-light: #d4909d;
  --color-teal-dark: #a05a6e;
  --color-teal-glow: rgba(192, 108, 132, 0.2);
  --color-indigo: #a78bfa;
  --color-indigo-glow: rgba(167, 139, 250, 0.15);
  --color-text: #e4e4e7;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;
  --color-border: #27272a;
  --color-border-light: #1f1f22;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-2xl: 40px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.2);
  --shadow-md: 0 4px 16px rgba(0,0,0,.3);
  --shadow-lg: 0 12px 36px rgba(0,0,0,.4);
  --shadow-xl: 0 24px 60px rgba(0,0,0,.5);
  --shadow-teal: 0 8px 32px rgba(192,108,132,.15);
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Inter","SF Pro Text",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  color:var(--color-text);background:var(--color-bg);line-height:1.7;font-size:16px;
  -webkit-font-smoothing:antialiased;overflow-x:hidden
}

/* Chinese text stack */
:lang(zh),.zh-text{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif
}

/* --- Scroll animations --- */
.anim-fade-in{
  opacity:0;transform:translateY(24px);
  transition:opacity var(--transition-slow),transform var(--transition-slow)
}
.anim-fade-in.visible{opacity:1;transform:translateY(0)}
.anim-fade-in-left{
  opacity:0;transform:translateX(-24px);
  transition:opacity var(--transition-slow),transform var(--transition-slow)
}
.anim-fade-in-left.visible{opacity:1;transform:translateX(0)}
.anim-fade-in-right{
  opacity:0;transform:translateX(24px);
  transition:opacity var(--transition-slow),transform var(--transition-slow)
}
.anim-fade-in-right.visible{opacity:1;transform:translateX(0)}
.anim-scale-in{
  opacity:0;transform:scale(0.92);
  transition:opacity var(--transition-slow),transform var(--transition-slow)
}
.anim-scale-in.visible{opacity:1;transform:scale(1)}

/* Stagger children */
.anim-stagger > *{opacity:0;transform:translateY(20px);transition:opacity .4s,transform .4s}
.anim-stagger > *.visible{opacity:1;transform:translateY(0)}

/* --- Typography --- */
h1{font-size:clamp(2.5rem,6vw,4.5rem);font-weight:900;letter-spacing:-0.04em;line-height:1.08;text-transform:uppercase}
h2{font-size:clamp(2rem,5vw,3.5rem);font-weight:800;letter-spacing:-0.03em;line-height:1.15;text-transform:uppercase}
h3{font-size:1.3rem;font-weight:700;letter-spacing:-0.02em}
h4{font-size:1.05rem;font-weight:600}
p{margin-bottom:1rem;color:var(--color-text-secondary)}
a{color:var(--color-teal);text-decoration:none;transition:color var(--transition-fast)}
a:hover{color:var(--color-teal-light)}

/* Gradient text utility */
.text-gradient{
  background:linear-gradient(135deg,var(--color-teal-light),var(--color-indigo));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text
}

/* --- Layout --- */
.container{max-width:1100px;margin:0 auto;padding:0 28px}
.section{padding:88px 0;position:relative}
.section-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.72rem;font-weight:700;text-transform:uppercase;
  letter-spacing:.14em;color:var(--color-teal);margin-bottom:12px
}
.section-label::before{
  content:'';display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--color-teal);box-shadow:0 0 8px var(--color-teal-glow)
}

/* --- Decorative blobs --- */
.blob{
  position:absolute;border-radius:50%;pointer-events:none;z-index:0;
  filter:blur(80px);opacity:.4
}
.blob-teal{background:rgba(192,108,132,.12);width:500px;height:500px}
.blob-indigo{background:rgba(167,139,250,.10);width:400px;height:400px}

/* --- Nav --- */
.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(11,17,32,.85);backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  padding:14px 0;border-bottom:1px solid rgba(255,255,255,.05);
  transition:background var(--transition-base),box-shadow var(--transition-base)
}
.site-nav.scrolled{
  background:rgba(11,17,32,.95);
  box-shadow:0 4px 24px rgba(0,0,0,.25)
}
.nav-inner{
  max-width:1100px;margin:0 auto;padding:0 28px;
  display:flex;align-items:center;justify-content:space-between
}
.nav-logo{
  font-weight:800;font-size:1.2rem;color:#fff;letter-spacing:-0.03em;
  background:linear-gradient(135deg,#fff,rgba(255,255,255,.8));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text
}
.nav-links{display:flex;gap:28px;list-style:none;align-items:center}
.nav-links a{
  color:rgba(255,255,255,.72);font-size:.88rem;font-weight:500;
  transition:color var(--transition-fast);position:relative
}
.nav-links a::after{
  content:'';position:absolute;bottom:-4px;left:0;right:0;height:2px;
  background:var(--color-teal);border-radius:1px;
  transform:scaleX(0);transition:transform var(--transition-fast)
}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-lang a{color:rgba(255,255,255,.5);font-size:.82rem}
.nav-lang a:hover{color:rgba(255,255,255,.85)}

/* --- Hero --- */
.hero{
  background:var(--color-dark);
  color:#fff;padding:0;min-height:100vh;
  display:flex;align-items:center;justify-content:center;
  text-align:center;position:relative;overflow:hidden
}

/* Particle canvas */
.hero-particles{
  position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.7
}

/* Animated orbs */
.hero-orb{
  position:absolute;border-radius:50%;pointer-events:none;z-index:0;
  filter:blur(100px);opacity:.35
}
.hero-orb-1{
  width:600px;height:600px;top:-15%;right:-10%;
  background:radial-gradient(circle,rgba(192,108,132,.5),transparent 70%);
  animation:orb-drift-1 12s ease-in-out infinite
}
.hero-orb-2{
  width:500px;height:500px;bottom:-10%;left:-8%;
  background:radial-gradient(circle,rgba(167,139,250,.4),transparent 70%);
  animation:orb-drift-2 14s ease-in-out infinite
}
.hero-orb-3{
  width:350px;height:350px;top:40%;left:40%;
  background:radial-gradient(circle,rgba(212,144,157,.35),transparent 70%);
  animation:orb-drift-3 10s ease-in-out infinite
}
@keyframes orb-drift-1{
  0%,100%{transform:translate(0,0) scale(1)}
  25%{transform:translate(-40px,30px) scale(1.1)}
  50%{transform:translate(20px,-20px) scale(.9)}
  75%{transform:translate(30px,10px) scale(1.05)}
}
@keyframes orb-drift-2{
  0%,100%{transform:translate(0,0) scale(1)}
  25%{transform:translate(30px,-20px) scale(1.08)}
  50%{transform:translate(-20px,30px) scale(.92)}
  75%{transform:translate(-30px,-10px) scale(1.04)}
}
@keyframes orb-drift-3{
  0%,100%{transform:translate(0,0) scale(1);opacity:.25}
  50%{transform:translate(-30px,-30px) scale(1.2);opacity:.4}
}

/* Grid overlay */
.hero .grid-overlay{
  position:absolute;inset:0;pointer-events:none;z-index:1;opacity:.025;
  background-image:
    linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:80px 80px
}

/* Floating keyword badges */
.hero-floaters{position:absolute;inset:0;z-index:2;pointer-events:none}
.hero-floater{
  position:absolute;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  padding:6px 14px;border-radius:20px;font-size:.78rem;font-weight:600;
  color:rgba(255,255,255,.7);white-space:nowrap;
  animation:floater-float 7s ease-in-out infinite
}
@keyframes floater-float{
  0%,100%{transform:translateY(0) rotate(0deg)}
  25%{transform:translateY(-14px) rotate(-1deg)}
  50%{transform:translateY(-6px) rotate(0deg)}
  75%{transform:translateY(-18px) rotate(1deg)}
}

/* Hero content */
.hero-content{position:relative;z-index:3;padding:120px 0 150px}
/* Hero portrait */
.hero-portrait{
  position:relative;display:inline-block;
  width:140px;height:140px
}
.hero-portrait-ring{
  position:absolute;inset:-8px;border-radius:50%;
  background:linear-gradient(135deg,var(--color-teal),var(--color-indigo));
  opacity:.4;animation:portrait-spin 4s linear infinite;
  filter:blur(8px)
}
@keyframes portrait-spin{
  0%{transform:rotate(0deg) scale(1)}
  50%{transform:rotate(180deg) scale(1.08)}
  100%{transform:rotate(360deg) scale(1)}
}

.hero-badge{
  display:inline-block;margin-bottom:24px;
  background:rgba(192,108,132,.15);border:1px solid rgba(236,72,153,.25);
  color:var(--color-teal-light);font-size:.8rem;font-weight:700;
  padding:6px 16px;border-radius:20px;letter-spacing:.03em;
  backdrop-filter:blur(4px)
}
.hero-title{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.hero-line{
  display:block;font-size:clamp(2.2rem,6vw,4rem);font-weight:800;
  letter-spacing:-0.04em;line-height:1.1;
  background:linear-gradient(135deg,#fff 20%,rgba(255,255,255,.7) 80%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  animation:hero-text-in .8s cubic-bezier(0.16,1,0.3,1) both
}
.hero-line:nth-child(2){animation-delay:.15s}
.hero-line-accent{
  background:linear-gradient(135deg,var(--color-teal-light),#d4909d,var(--color-indigo));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text
}
@keyframes hero-text-in{
  from{opacity:0;transform:translateY(30px)}
  to{opacity:1;transform:translateY(0)}
}

.hero .subtitle{
  font-size:1.18rem;color:rgba(255,255,255,.7);max-width:720px;margin:0 auto 8px;
  line-height:1.7;animation:hero-text-in .8s .3s cubic-bezier(0.16,1,0.3,1) both
}
.hero .subtitle-zh{
  font-size:1rem;color:rgba(255,255,255,.45);max-width:680px;margin:0 auto 36px;
  line-height:1.6;animation:hero-text-in .8s .4s cubic-bezier(0.16,1,0.3,1) both
}
.hero-actions{
  display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:8px;
  animation:hero-text-in .8s .5s cubic-bezier(0.16,1,0.3,1) both
}

/* Scroll indicator */
.scroll-indicator{
  position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:6px;
  color:rgba(255,255,255,.3);font-size:.7rem;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;
  animation:scroll-bob 2s ease-in-out infinite
}
.scroll-line{
  width:1px;height:32px;background:linear-gradient(180deg,var(--color-teal-light),transparent);
  border-radius:1px
}
@keyframes scroll-bob{
  0%,100%{transform:translateX(-50%) translateY(0);opacity:.6}
  50%{transform:translateX(-50%) translateY(8px);opacity:1}
}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:13px 28px;border-radius:var(--radius-md);font-weight:600;font-size:.94rem;
  text-decoration:none;transition:all var(--transition-base);cursor:pointer;border:none;
  letter-spacing:-0.01em;position:relative;overflow:hidden
}
.btn-primary{
  background:linear-gradient(135deg,var(--color-teal),var(--color-teal-dark));
  color:#fff;box-shadow:0 4px 16px var(--color-teal-glow)
}
.btn-primary:hover{
  transform:translateY(-2px);color:#fff;
  box-shadow:0 8px 28px rgba(13,148,136,.32)
}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  background:rgba(255,255,255,.04);color:#fff;
  border:1.5px solid rgba(255,255,255,.2);
  backdrop-filter:blur(4px)
}
.btn-outline:hover{
  background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.35);
  color:#fff;transform:translateY(-2px)
}
.btn-light{
  background:#fff;color:var(--color-text);
  box-shadow:var(--shadow-md)
}
.btn-light:hover{
  background:#f0f0f0;transform:translateY(-2px);
  box-shadow:var(--shadow-lg)
}
.btn-glow{
  position:relative
}
.btn-glow::after{
  content:'';position:absolute;inset:-2px;border-radius:inherit;
  background:linear-gradient(135deg,var(--color-teal),var(--color-indigo));
  opacity:0;transition:opacity var(--transition-base);z-index:-1
}
.btn-glow:hover::after{opacity:.15}

/* --- Stats Bar --- */
.stats-bar{
  background:var(--color-surface);position:relative;z-index:2;
  margin-top:0;border-radius:var(--radius-xl) var(--radius-xl) 0 0;
  box-shadow:var(--shadow-lg)
}
.stats-inner{
  max-width:1100px;margin:0 auto;padding:0 28px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:0
}
.stat-item{
  text-align:center;padding:36px 16px;position:relative
}
.stat-item + .stat-item::before{
  content:'';position:absolute;left:0;top:20%;height:60%;width:1px;
  background:linear-gradient(0deg,transparent,var(--color-border),transparent)
}
.stat-number{
  font-size:2.8rem;font-weight:800;color:var(--color-text);
  letter-spacing:-0.04em;line-height:1;margin-bottom:8px
}
.stat-number .counter-suffix{
  background:linear-gradient(135deg,var(--color-teal),var(--color-teal-light));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text
}
.stat-label{font-size:.88rem;color:var(--color-text-muted);line-height:1.4}

/* --- Problem/Solution --- */
.problems-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;
  margin-top:36px
}
.problem-card{
  background:var(--color-surface);border:1px solid var(--color-border);
  border-radius:var(--radius-lg);padding:28px 24px;
  transition:all var(--transition-base);position:relative;overflow:hidden
}
.problem-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--color-teal),var(--color-indigo));
  transform:scaleX(0);transition:transform var(--transition-base)
}
.problem-card:hover{box-shadow:var(--shadow-lg);border-color:transparent;transform:translateY(-3px)}
.problem-card:hover::before{transform:scaleX(1)}
.problem-emoji{font-size:1.8rem;margin-bottom:10px;display:block}
.problem-card h4{font-size:1rem;margin-bottom:6px;color:var(--color-dark)}
.problem-card p{font-size:.9rem;color:var(--color-text-muted);margin:0}

/* --- Case Cards --- */
.cases-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(330px,1fr));gap:28px;margin-top:36px}
.case-card{
  background:var(--color-surface);border:1px solid var(--color-border);
  border-radius:var(--radius-xl);overflow:hidden;
  transition:all var(--transition-base);display:flex;flex-direction:column
}
.case-card:hover{
  box-shadow:var(--shadow-xl);transform:translateY(-4px);border-color:transparent
}
.case-card-image{
  height:190px;position:relative;overflow:hidden
}
.case-card-image::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,.4) 100%)
}
.case-card-image .case-logo{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  font-size:3.5rem;font-weight:800;color:rgba(255,255,255,.1);letter-spacing:-0.05em
}
.case-card-image .case-badge{
  position:absolute;top:16px;right:16px;z-index:2;
  background:rgba(13,148,136,.92);color:#fff;font-size:.73rem;font-weight:600;
  padding:5px 12px;border-radius:20px;
  backdrop-filter:blur(8px);box-shadow:0 2px 8px rgba(0,0,0,.15)
}
.case-card-body{padding:26px;flex:1;display:flex;flex-direction:column}
.case-card-body h3{margin-bottom:6px}
.case-card-body h3 a{color:var(--color-dark)}
.case-card-body h3 a:hover{color:var(--color-teal)}
.case-card-body .case-meta{font-size:.8rem;color:var(--color-text-muted);margin-bottom:10px}
.case-card-body > p{font-size:.92rem;color:var(--color-text-secondary);flex:1}
.case-card-stats{
  display:flex;gap:16px;padding-top:18px;margin-top:18px;
  border-top:1px solid var(--color-border-light)
}
.case-stat{text-align:center;flex:1}
.case-stat-num{font-size:1.6rem;font-weight:700;color:var(--color-teal);line-height:1}
.case-stat-label{font-size:.72rem;color:var(--color-text-muted);margin-top:4px;text-transform:uppercase;letter-spacing:.05em}

/* --- Methodology --- */
.method-section{
  background:var(--color-dark-2);border-top:1px solid rgba(255,255,255,.04);
  border-bottom:1px solid rgba(255,255,255,.04)
}
.method-section h2,.method-section p{color:rgba(255,255,255,.85)}
.method-section .section-label{color:var(--color-teal-light)}
.method-flow{
  display:flex;gap:0;margin-top:44px;overflow-x:auto;padding-bottom:12px
}
.method-phase{
  flex:1;min-width:200px;padding:32px 22px;text-align:center;position:relative;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.02);
  transition:all var(--transition-base);
  backdrop-filter:blur(4px)
}
.method-phase:first-child{border-radius:var(--radius-md) 0 0 var(--radius-md)}
.method-phase:last-child{border-radius:0 var(--radius-md) var(--radius-md) 0}
.method-phase + .method-phase{border-left:none}
.method-phase:hover{
  background:rgba(236,72,153,.08);border-color:rgba(236,72,153,.3);
  z-index:2;transform:translateY(-4px)
}
.method-phase-num{
  width:40px;height:40px;border-radius:50%;
  background:linear-gradient(135deg,var(--color-teal),var(--color-teal-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:.9rem;margin:0 auto 14px;
  box-shadow:0 4px 12px var(--color-teal-glow)
}
.method-phase h4{font-size:.98rem;margin-bottom:6px;color:#fff}
.method-phase p{font-size:.84rem;color:rgba(255,255,255,.55);margin:0;line-height:1.5}

/* --- Numbered Services (Jack-inspired) --- */
.numbered-services{display:flex;flex-direction:column;margin-top:40px}
.num-service{
  display:flex;gap:32px;padding:32px 0;
  border-bottom:1px solid var(--color-border);align-items:flex-start
}
.num-service:first-child{padding-top:0}
.num-service:last-child{border-bottom:none}
.num-service-number{
  font-size:clamp(3rem,10vw,7rem);font-weight:900;line-height:.85;
  color:var(--color-teal);min-width:clamp(80px,15vw,160px);
  letter-spacing:-0.03em
}
.num-service-content{flex:1;padding-top:12px}
.num-service-content h3{font-size:clamp(1.1rem,2.5vw,1.6rem);font-weight:600;margin-bottom:8px;text-transform:none;letter-spacing:-0.01em}
.num-service-content p{font-size:clamp(.88rem,1.5vw,1.05rem);color:var(--color-text-muted);line-height:1.7;max-width:580px;margin:0}
@media(max-width:600px){
  .num-service{gap:20px;padding:24px 0}
  .num-service-number{font-size:2.8rem;min-width:60px}
  .num-service-content{padding-top:6px}
}

/* --- Services (legacy grid) --- */
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:22px;margin-top:36px}
.service-card{
  background:var(--color-surface);border:1px solid var(--color-border);
  border-radius:var(--radius-lg);padding:32px 28px;
  transition:all var(--transition-base);position:relative;overflow:hidden
}
.service-card::after{
  content:'';position:absolute;top:-50%;right:-50%;width:120px;height:120px;
  background:radial-gradient(circle,rgba(236,72,153,.06) 0%,transparent 70%);
  border-radius:50%;pointer-events:none
}
.service-card:hover{
  box-shadow:var(--shadow-lg);border-color:var(--color-teal);
  transform:translateY(-3px)
}
.service-icon{
  font-size:2rem;margin-bottom:14px;display:block;
  width:48px;height:48px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(236,72,153,.08),rgba(13,148,136,.03));
  border-radius:var(--radius-sm)
}
.service-card h4{font-size:1.02rem;margin-bottom:8px}
.service-card p{font-size:.9rem;color:var(--color-text-muted);margin:0}

/* --- Blog preview --- */
.blog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:28px;margin-top:36px}
.blog-card{
  background:var(--color-surface);border:1px solid var(--color-border);
  border-radius:var(--radius-lg);padding:28px 26px;
  transition:all var(--transition-base);position:relative
}
.blog-card:hover{
  box-shadow:var(--shadow-lg);border-color:transparent;transform:translateY(-3px)
}
.blog-card .blog-date{font-size:.78rem;color:var(--color-text-muted);margin-bottom:10px}
.blog-card h4{font-size:1.08rem;margin-bottom:10px;line-height:1.4}
.blog-card h4 a{color:var(--color-dark)}
.blog-card h4 a:hover{color:var(--color-teal)}
.blog-card p{font-size:.9rem;color:var(--color-text-muted);margin:0}
.blog-tag{
  display:inline-block;font-size:.7rem;font-weight:600;padding:4px 12px;
  border-radius:20px;background:linear-gradient(135deg,rgba(192,108,132,.08),rgba(167,139,250,.06));
  color:var(--color-teal);margin-bottom:12px;letter-spacing:.02em
}

/* --- About page --- */
.about-hero{
  background:var(--color-dark);
  color:#fff;padding:130px 0 70px;text-align:center;position:relative;overflow:hidden
}
.about-hero::before{
  content:'';position:absolute;top:-20%;right:-10%;width:500px;height:500px;
  background:radial-gradient(circle,rgba(192,108,132,.12) 0%,transparent 65%);
  border-radius:50%;pointer-events:none
}
.about-content{max-width:800px;margin:0 auto}
.about-content h2{margin-top:52px;margin-bottom:18px}
.about-highlights{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:18px;
  margin:32px 0
}
.about-highlight{
  text-align:center;padding:28px 20px;background:var(--color-surface);
  border-radius:var(--radius-lg);border:1px solid var(--color-border);
  transition:all var(--transition-base)
}
.about-highlight:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.about-highlight-num{font-size:2.2rem;font-weight:800;color:var(--color-teal-light);line-height:1}
.about-highlight-label{font-size:.84rem;color:var(--color-text-muted);margin-top:6px}

/* --- Case detail page --- */
.case-hero{
  background:var(--color-dark);
  color:#fff;padding:130px 0 70px;position:relative;overflow:hidden
}
.case-hero::before{
  content:'';position:absolute;top:-15%;right:-8%;width:450px;height:450px;
  background:radial-gradient(circle,rgba(236,72,153,.1) 0%,transparent 65%);
  border-radius:50%;pointer-events:none
}
.case-hero .case-meta{color:rgba(255,255,255,.5);font-size:.9rem;margin-bottom:8px}
.case-hero h1{margin-bottom:14px}
.case-hero .case-summary{font-size:1.15rem;color:rgba(255,255,255,.72);max-width:700px}
.case-content{max-width:800px;margin:0 auto}
.case-content h2{
  margin-top:52px;margin-bottom:18px;padding-bottom:10px;
  border-bottom:3px solid var(--color-teal);display:inline-block
}
.case-content h3{margin-top:32px;margin-bottom:12px}
.case-content ul,.case-content ol{margin-left:20px;margin-bottom:24px}
.case-content li{margin-bottom:10px;color:var(--color-text-secondary);line-height:1.65}
.case-results{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px;
  margin:32px 0
}
.case-result{
  background:linear-gradient(135deg,rgba(236,72,153,.04),rgba(99,102,241,.03));
  border:1px solid rgba(192,108,132,.12);border-radius:var(--radius-lg);
  padding:28px 20px;text-align:center;transition:all var(--transition-base)
}
.case-result:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.case-result-num{font-size:2.4rem;font-weight:800;color:var(--color-teal);line-height:1;margin-bottom:6px}
.case-result-label{font-size:.86rem;color:var(--color-text-secondary)}
.case-quote{
  border-left:4px solid var(--color-teal);padding:18px 28px;margin:32px 0;
  background:var(--color-bg);border-radius:0 var(--radius-md) var(--radius-md) 0;
  font-style:italic;color:var(--color-text-muted);font-size:.98rem
}

/* --- Contact --- */
.contact-section{
  background:var(--color-dark);color:#fff;text-align:center;
  position:relative;overflow:hidden
}
.contact-section::before{
  content:'';position:absolute;top:-30%;left:50%;transform:translateX(-50%);
  width:700px;height:700px;
  background:radial-gradient(circle,rgba(236,72,153,.08) 0%,transparent 60%);
  border-radius:50%;pointer-events:none
}
.contact-section h2{color:#fff}
.contact-section p{color:rgba(255,255,255,.65);max-width:560px;margin:12px auto 0}
.contact-methods{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin-top:28px;position:relative;z-index:1}
.contact-method{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-lg);padding:24px 32px;min-width:200px;
  transition:all var(--transition-base);backdrop-filter:blur(4px)
}
.contact-method:hover{
  background:rgba(255,255,255,.08);border-color:rgba(236,72,153,.4);
  transform:translateY(-3px);box-shadow:0 8px 28px rgba(0,0,0,.3)
}
.contact-method .method-icon{font-size:1.6rem;display:block;margin-bottom:10px}
.contact-method a{font-size:.95rem;font-weight:600}

/* --- Contact dialog --- */
.contact-dialog{
  width:min(540px,calc(100% - 32px));border:0;
  border-radius:var(--radius-xl);padding:40px 36px;
  color:var(--color-text);
  box-shadow:0 32px 80px rgba(0,0,0,.35);
  background:var(--color-surface);
  animation:dialog-in .3s cubic-bezier(0.4,0,0.2,1)
}
@keyframes dialog-in{
  from{opacity:0;transform:scale(.94) translateY(16px)}
  to{opacity:1;transform:scale(1) translateY(0)}
}
.contact-dialog::backdrop{
  background:rgba(11,17,32,.72);backdrop-filter:blur(6px);
  animation:backdrop-in .3s ease
}
@keyframes backdrop-in{from{opacity:0}to{opacity:1}}
.contact-dialog h2{margin:8px 0 0;font-size:1.8rem;color:var(--color-text)}
.contact-dialog p{margin:10px 0 24px;color:var(--color-text-muted)}
.dialog-close{
  position:absolute;top:14px;right:16px;border:0;background:transparent;
  color:var(--color-text-muted);font-size:1.8rem;line-height:1;
  cursor:pointer;transition:color var(--transition-fast);
  width:36px;height:36px;display:flex;align-items:center;justify-content:center;
  border-radius:50%
}
.dialog-close:hover{color:var(--color-teal-light);background:var(--color-surface-2)}
.contact-form{display:grid;gap:6px}
.contact-form label{font-size:.84rem;font-weight:700;margin-top:10px;color:var(--color-text)}
.contact-form input,.contact-form textarea{
  width:100%;border:1.5px solid var(--color-border);border-radius:var(--radius-sm);
  padding:11px 14px;font:inherit;box-sizing:border-box;color:var(--color-text);
  transition:border-color var(--transition-fast),box-shadow var(--transition-fast);
  background:var(--color-surface-2)
}
.contact-form input:focus,.contact-form textarea:focus{
  outline:none;border-color:var(--color-teal);
  box-shadow:0 0 0 3px rgba(236,72,153,.1)
}
.contact-form textarea{resize:vertical;min-height:100px}
.contact-form .btn{margin-top:16px;justify-self:start}
@media(max-width:560px){
  .contact-dialog{padding:28px 22px}.contact-dialog h2{font-size:1.4rem}
}

/* --- Footer --- */
.site-footer{
  background:var(--color-dark);color:rgba(255,255,255,.35);
  text-align:center;padding:32px 0;font-size:.84rem;
  border-top:1px solid rgba(255,255,255,.04)
}
.site-footer a{color:rgba(255,255,255,.55)}
.site-footer a:hover{color:var(--color-teal-light)}

/* --- Blog page --- */
.blog-list{max-width:800px;margin:0 auto}
.blog-list-item{
  padding:32px 0;border-bottom:1px solid var(--color-border);
  transition:all var(--transition-fast)
}
.blog-list-item:first-child{padding-top:0}
.blog-list-item:hover{padding-left:12px;border-color:var(--color-teal)}

/* --- Career Timeline --- */
.timeline{position:relative;padding-left:28px;margin:28px 0}
.timeline::before{
  content:'';position:absolute;left:7px;top:8px;bottom:8px;
  width:2px;background:linear-gradient(180deg,var(--color-teal),var(--color-border),var(--color-teal))
}
.timeline-item{position:relative;margin-bottom:36px;padding-left:32px}
.timeline-item:last-child{margin-bottom:0}
.timeline-dot{
  position:absolute;left:-24px;top:6px;
  width:14px;height:14px;border-radius:50%;
  background:var(--color-teal);border:3px solid var(--color-surface);
  box-shadow:0 0 0 3px var(--color-teal-glow)
}
.timeline-content{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px 28px;transition:all var(--transition-base)}
.timeline-content:hover{box-shadow:var(--shadow-md);border-color:transparent}
.timeline-date{font-size:.78rem;font-weight:700;color:var(--color-teal);text-transform:uppercase;letter-spacing:.06em}
.timeline-content h3{font-size:1.15rem;margin:6px 0 2px}
.timeline-subtitle{font-size:.9rem;color:var(--color-text-secondary);margin-bottom:10px;font-weight:500}
.timeline-content p{font-size:.92rem;color:var(--color-text-muted);margin:0 0 14px}
.timeline-tags{display:flex;flex-wrap:wrap;gap:8px}
.timeline-tags span{
  font-size:.72rem;font-weight:600;padding:3px 10px;border-radius:20px;
  background:linear-gradient(135deg,rgba(236,72,153,.06),rgba(168,85,247,.04));
  color:var(--color-teal-light);border:1px solid rgba(192,108,132,.12)
}
@media(max-width:600px){
  .timeline{padding-left:20px}
  .timeline-content{padding:18px}
}

/* --- Competencies Grid --- */
.competencies-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;
  margin:28px 0
}
.competency-card{
  background:var(--color-surface);border:1px solid var(--color-border);
  border-radius:var(--radius-md);padding:24px 20px;
  transition:all var(--transition-base)
}
.competency-card:hover{border-color:var(--color-teal);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.competency-icon{font-size:1.5rem;margin-bottom:8px;display:block}
.competency-card h4{font-size:.93rem;margin-bottom:4px;color:var(--color-text)}
.competency-card p{font-size:.84rem;color:var(--color-text-muted);margin:0;line-height:1.55}

/* --- Tools & Platforms --- */
.tools-section{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px;margin:24px 0}
.tool-group{
  background:var(--color-bg);border:1px solid var(--color-border);
  border-radius:var(--radius-md);padding:20px 22px;
  transition:all var(--transition-base)
}
.tool-group:hover{border-color:var(--color-teal);background:var(--color-surface-2)}
.tool-group h4{font-size:.9rem;margin-bottom:6px}
.tool-group p{font-size:.84rem;color:var(--color-text-muted);margin:0;line-height:1.6}

/* --- Beliefs --- */
.beliefs-list{margin:28px 0}
.belief-item{
  display:flex;gap:24px;padding:24px 0;border-bottom:1px solid var(--color-border-light);
  transition:all var(--transition-fast)
}
.belief-item:first-child{padding-top:0}
.belief-item:last-child{border-bottom:none;padding-bottom:0}
.belief-item:hover{padding-left:8px}
.belief-number{
  font-size:2rem;font-weight:800;color:var(--color-border);line-height:1;
  min-width:48px;transition:color var(--transition-fast)
}
.belief-item:hover .belief-number{color:var(--color-teal-glow)}
.belief-text h4{font-size:1.02rem;margin-bottom:4px;color:var(--color-text)}
.belief-text p{font-size:.9rem;color:var(--color-text-muted);margin:0;line-height:1.6}

/* --- Client Cards --- */
.clients-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin:28px 0}
.client-card{
  background:var(--color-surface);border:1px solid var(--color-border);
  border-radius:var(--radius-lg);padding:28px 24px;
  transition:all var(--transition-base);text-align:center
}
.client-card:hover{box-shadow:var(--shadow-lg);border-color:transparent;transform:translateY(-3px)}
.client-icon{font-size:2.2rem;display:block;margin-bottom:12px}
.client-card h4{font-size:1rem;margin-bottom:8px}
.client-card p{font-size:.88rem;color:var(--color-text-muted);margin:0;line-height:1.6}

/* --- Currently Box --- */
.currently-box{
  background:linear-gradient(135deg,rgba(236,72,153,.04),rgba(99,102,241,.03));
  border:1px solid rgba(192,108,132,.12);border-radius:var(--radius-lg);
  padding:28px 32px;margin-top:16px
}
.currently-box p{font-size:.95rem;margin-bottom:10px}
.currently-box p:last-child{margin-bottom:0}

/* --- Framework one-pager --- */
.fw-phase{
  background:var(--color-surface);border:1px solid var(--color-border);
  border-radius:var(--radius-lg);padding:24px 28px;margin-bottom:18px;
  transition:all var(--transition-base)
}
.fw-phase:hover{border-color:var(--color-teal)}
.fw-phase-head{display:flex;align-items:center;gap:14px;margin-bottom:10px}
.fw-phase-num{
  width:36px;height:36px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--color-teal),var(--color-teal-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:.88rem
}
.fw-phase-head h3{font-size:1.1rem;margin:0}
.fw-phase-goal{font-size:.88rem;font-weight:600;color:var(--color-teal-light);margin-bottom:10px}
.fw-phase-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.fw-phase-tags span{
  font-size:.75rem;font-weight:600;padding:3px 12px;border-radius:16px;
  background:rgba(192,108,132,.08);color:var(--color-teal-light);
  border:1px solid rgba(192,108,132,.15)
}
.fw-phase-out{font-size:.84rem;color:var(--color-text-muted);margin:0}

/* --- Section dividers --- */
.section-divider{
  height:1px;background:linear-gradient(90deg,transparent,var(--color-border),transparent);
  max-width:800px;margin:0 auto
}

/* --- Responsive --- */
@media(max-width:768px){
  .hero{min-height:auto;padding:140px 0 100px}
  .hero-content{padding:0 0 60px}
  .hero-floaters{display:none}
  .hero-floater{display:none}
  .hero-particles{opacity:.4}
  .hero-line{font-size:clamp(1.8rem,8vw,3rem)}
  .hero .subtitle{font-size:1rem}
  .hero .subtitle-zh{font-size:.88rem}
  .twitter-card{flex-direction:column;text-align:center;gap:10px;padding:16px 20px}
  .twitter-card div:last-child{margin-left:0!important}
  .stats-inner{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2n+1)::before{display:none}
  .stat-item:nth-child(n+3){border-top:1px solid var(--color-border)}
  .nav-links{gap:16px;font-size:.8rem}
  .method-flow{flex-direction:column}
  .method-phase{border-radius:0!important;border-left:1px solid rgba(255,255,255,.08)!important}
  .method-phase:first-child{border-radius:var(--radius-md) var(--radius-md) 0 0!important}
  .method-phase:last-child{border-radius:0 0 var(--radius-md) var(--radius-md)!important}
  .cases-grid{grid-template-columns:1fr}
  .blog-grid{grid-template-columns:1fr}
  .case-results{grid-template-columns:repeat(2,1fr)}
  .section{padding:56px 0}
  .stats-bar{margin-top:0;border-radius:var(--radius-md) var(--radius-md) 0 0}
}
@media(max-width:480px){
  .hero-actions{flex-direction:column;align-items:center}
  .hero-actions .btn{width:100%;text-align:center;justify-content:center}
  .stats-inner{grid-template-columns:1fr}
  .stat-item + .stat-item{border-top:1px solid var(--color-border)}
  .stat-item + .stat-item::before{display:none}
  .services-grid{grid-template-columns:1fr}
}