.about-hero{padding:88px 40px 64px;display:grid;grid-template-columns:1fr 380px;gap:64px;align-items:center;background-color:#fff;background-image:radial-gradient(circle,#d0d0d0 1.2px,transparent 1.2px);background-size:22px 22px;border-bottom:1px solid var(--border)}
.hero-eyebrow{font-size:10.5px;font-weight:500;letter-spacing:0.12em;color:var(--orange);text-transform:uppercase;margin-bottom:16px}
.hero-title{font-family:var(--font-d);font-size:52px;font-weight:900;color:var(--dark);line-height:1.05;letter-spacing:-0.03em;margin-bottom:20px}
.hero-title em{color:var(--orange);font-style:italic}
.hero-body{font-size:15px;color:var(--mid);line-height:1.85;margin-bottom:12px}
.hero-body strong{color:var(--dark);font-weight:500}
.hero-portrait{display:flex;flex-direction:column;align-items:center;gap:16px}
.portrait-caption{font-size:12px;color:var(--light);text-align:center;line-height:1.5}
/* principles */
.principles-section{padding:80px 40px;background:var(--dark);position:relative;overflow:hidden}
.principles-section::before{content:'';position:absolute;inset:0;background-image:radial-gradient(circle,rgba(255,117,31,0.05) 1px,transparent 1px);background-size:22px 22px}
.principles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;margin-top:44px;position:relative;z-index:1}
.principle-card{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.06);padding:36px 32px;transition:background 0.25s,border-color 0.25s,transform 0.25s var(--ease-bounce)}
.principle-card:hover{background:rgba(255,117,31,0.07);border-color:rgba(255,117,31,0.2);transform:translateY(-4px)}
.principle-num{font-family:var(--font-d);font-size:48px;font-weight:900;color:rgba(255,117,31,0.15);line-height:1;margin-bottom:16px;display:block}
.principle-title{font-family:var(--font-d);font-size:20px;font-weight:700;color:#fff;margin-bottom:10px}
.principle-desc{font-size:13px;color:rgba(255,255,255,0.45);line-height:1.7}
/* timeline */
.timeline-section{padding:88px 40px;background:var(--bg)}
.timeline-intro{max-width:560px;margin-bottom:64px}
.tl-legend{display:flex;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.tl-legend-item{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--mid)}
.tl-legend-dot{width:10px;height:10px;border-radius:50%;border:2.5px solid}
.timeline{position:relative;max-width:780px;margin:0 auto}
.timeline::before{content:'';position:absolute;left:50%;top:0;bottom:0;width:2px;transform:translateX(-50%);background:linear-gradient(to bottom,var(--orange),var(--border));border-radius:2px}
.tl-entry{display:grid;grid-template-columns:1fr 48px 1fr;gap:0;margin-bottom:0;position:relative}
.tl-node{display:flex;align-items:center;justify-content:center;z-index:2;padding:8px 0}
.tl-dot{width:14px;height:14px;border-radius:50%;background:var(--white);border:3px solid var(--orange);transition:background 0.2s,transform 0.2s var(--ease-bounce);flex-shrink:0}
.tl-entry:hover .tl-dot{background:var(--orange);transform:scale(1.3)}
.tl-entry[data-type="work"] .tl-dot{border-color:var(--orange)}
.tl-entry[data-type="education"] .tl-dot{border-color:#0d99ff}
.tl-entry[data-type="freelance"] .tl-dot{border-color:#0acf83}
.tl-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;margin:12px 16px;transition:transform 0.25s var(--ease-bounce),box-shadow 0.25s}
.tl-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(0,0,0,0.08)}
.tl-entry.left{grid-template-areas:"card node spacer"}
.tl-entry.right{grid-template-areas:"spacer node card"}
.tl-entry.left .tl-card{grid-area:card}.tl-entry.left .tl-node{grid-area:node}.tl-entry.left .tl-spacer{grid-area:spacer}
.tl-entry.right .tl-card{grid-area:card}.tl-entry.right .tl-node{grid-area:node}.tl-entry.right .tl-spacer{grid-area:spacer}
.tl-spacer{min-height:20px}
.tl-type{font-size:9px;font-weight:600;letter-spacing:0.09em;text-transform:uppercase;margin-bottom:7px}
.tl-entry[data-type="work"] .tl-type{color:var(--orange)}
.tl-entry[data-type="education"] .tl-type{color:#0d99ff}
.tl-entry[data-type="freelance"] .tl-type{color:#0acf83}
.tl-period{font-size:11px;font-weight:500;color:var(--light);margin-bottom:8px;display:block}
.tl-title{font-family:var(--font-d);font-size:17px;font-weight:700;color:var(--dark);margin-bottom:3px;letter-spacing:-0.01em}
.tl-org{font-size:12px;font-weight:500;color:var(--orange);margin-bottom:10px}
.tl-desc{font-size:12.5px;color:var(--mid);line-height:1.65}
.tl-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.tl-tag{font-size:10px;font-weight:500;color:var(--light);background:var(--bg);border:1px solid var(--border);padding:3px 10px;border-radius:100px}
/* skills */
.skills-section{padding:80px 40px;background:var(--white);border-top:1px solid var(--border)}
.skills-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:44px}
.skill-group-title{font-size:10.5px;font-weight:600;letter-spacing:0.1em;text-transform:uppercase;color:var(--orange);margin-bottom:16px}
.skill-list{display:flex;flex-direction:column;gap:10px}
.skill-item{display:flex;align-items:center;justify-content:space-between;gap:12px}
.skill-name{font-size:13px;color:var(--dark);font-weight:400}
.skill-bar-wrap{flex:1;height:3px;background:var(--border);border-radius:2px;overflow:hidden}
.skill-bar{height:100%;background:linear-gradient(to right,var(--orange),var(--orange-dark));border-radius:2px;width:0%;transition:width 1s var(--ease-out)}
/* cta */
.about-cta-strip{background:var(--orange);padding:64px 40px;text-align:center}
.cta-title{font-family:var(--font-d);font-size:36px;font-weight:700;color:#fff;letter-spacing:-0.02em;margin-bottom:12px}
.cta-sub{font-size:15px;color:rgba(255,255,255,0.75);margin-bottom:28px}
.cta-btn{background:#fff;color:var(--orange);border:none;padding:14px 32px;border-radius:100px;font-size:14px;font-weight:600;font-family:var(--font-b);cursor:pointer;transition:transform 0.2s var(--ease-bounce),box-shadow 0.2s;box-shadow:0 2px 16px rgba(0,0,0,0.1)}
.cta-btn:hover{transform:translateY(-3px);box-shadow:0 8px 28px rgba(0,0,0,0.15)}
/* responsive */
@media(max-width:900px){
  .about-hero{grid-template-columns:1fr;gap:40px;padding:56px 20px 40px}
  .hero-title{font-size:38px}
  .principles-grid{grid-template-columns:1fr;gap:0}
  .skills-grid{grid-template-columns:1fr 1fr}
  .timeline::before{left:20px;transform:none}
  .tl-entry{grid-template-columns:32px 1fr;grid-template-areas:"node card"!important}
  .tl-entry .tl-node{grid-area:node;align-items:flex-start;padding-top:22px}
  .tl-entry .tl-card{grid-area:card;margin:8px 0 8px 8px}
  .tl-entry .tl-spacer{display:none}
  .timeline-section,.skills-section,.principles-section,.about-cta-strip{padding:56px 20px}
}
@media(max-width:480px){.skills-grid{grid-template-columns:1fr}}