:root{--bg: #f5f5f5;--bg-2: #f0efe9;--border: #cfc8b8;--gold: #bfa065;--red: #b63a3a;--paper: #fffdfa;--green: #567b5b;--text-1: #333333;--text-2: #4a4a4a;--text-3: #777777;--font-heading: "Ma Shan Zheng", "STKaiti", "KaiTi", "Noto Serif SC", serif;--font-body: "Noto Serif SC", "Songti SC", "SimSun", serif;--radius-1: 8px;--space-1: .5rem;--space-2: .75rem;--space-3: 1rem;--space-4: 1.5rem;--space-5: 2rem;--bp-sm: 768px;--bp-md: 1024px;--bp-lg: 1200px}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:radial-gradient(800px 800px at 15% 10%,rgba(0,0,0,.03),transparent 60%),radial-gradient(1000px 800px at 85% 20%,rgba(0,0,0,.02),transparent 65%),radial-gradient(1200px 1000px at 50% 80%,rgba(0,0,0,.02),transparent 70%),var(--bg);color:var(--text-2);font-family:var(--font-body);line-height:1.6}.container{max-width:var(--bp-lg);margin:0 auto;padding:var(--space-5)}.header{padding:var(--space-3) 0;border-bottom:1px solid var(--border);background:linear-gradient(180deg,#bfa06526,#bfa06500);border-radius:8px}.title{color:var(--text-1);font-family:var(--font-heading);font-size:clamp(2rem,1.6rem + 2vw,3.5rem);line-height:1.3}.subtitle{color:var(--text-3);font-family:var(--font-heading);letter-spacing:2px}.title-row{display:flex;align-items:center;gap:var(--space-2)}.seal{display:inline-flex;justify-content:center;align-items:center;width:40px;height:40px;background:var(--red);color:var(--paper);border:1px solid rgba(0,0,0,.2);border-radius:50%;font-family:var(--font-heading);transform:rotate(-6deg);box-shadow:inset 0 0 0 2px #ffffff26,0 2px 6px #0000001a}.section{padding:var(--space-5) 0;transition:opacity .5s ease,transform .5s ease}.section{content-visibility:auto;contain-intrinsic-size:1px 600px}.section.reveal{opacity:0;transform:translateY(12px)}.section.inview{opacity:1;transform:translateY(0)}.section-title{color:var(--text-1);font-family:var(--font-heading);font-size:clamp(1.6rem,1.3rem + 1.5vw,2.5rem);margin:0 0 var(--space-3);position:relative}.section-title:after{content:"";display:block;height:10px;width:120px;background:linear-gradient(90deg,#b63a3ab3,#5f5f5f80);border-radius:12px;transform:scaleX(0);transform-origin:left;transition:transform .6s ease}.section.inview .section-title:after{transform:scaleX(1)}.chat{padding:var(--space-3) 0;border-top:1px solid var(--border)}.chat h2{color:var(--text-1);font-family:var(--font-heading)}.chat-window{background:linear-gradient(180deg,#00000008,#00000005),var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-1);height:240px;overflow:auto;padding:var(--space-3);margin-bottom:var(--space-2);-webkit-overflow-scrolling:touch}@media (max-width: 768px){.chat-window{height:40vh;min-height:240px;max-height:400px}.preset-chips{overflow-x:auto;flex-wrap:nowrap;padding-bottom:8px;-ms-overflow-style:none;scrollbar-width:none}.preset-chips::-webkit-scrollbar{display:none}.chip-btn{white-space:nowrap;flex-shrink:0}.input-row{flex-direction:column}.btn{width:100%}}.row{display:flex;align-items:flex-end;gap:var(--space-1);margin-bottom:var(--space-2)}.row-end{justify-content:flex-end}.bubble{display:inline-block;max-width:70%;padding:var(--space-2) var(--space-3);border-radius:18px}.bubble-system{background:#efefe9;color:var(--text-2);border:1px solid var(--border)}.bubble-assistant{background:#e8f4f6;color:var(--text-1);border:1px solid rgba(86,123,91,.35);box-shadow:0 1px #567b5b33}.bubble-user{background:#eee;color:var(--text-1);border:1px solid rgba(182,58,58,.35);box-shadow:0 1px #b63a3a33}.stamp{color:var(--text-3);font-size:.75rem}.input-row{display:flex;gap:var(--space-2)}.input{flex:1;background:var(--paper);color:var(--text-1);border:1px solid var(--border);border-radius:var(--radius-1);padding:var(--space-2);transition:border-color .2s ease,box-shadow .2s ease;box-shadow:inset 0 0 0 2px #00000005}.input:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 2px #bfa06540}.btn{background:var(--red);color:#fff;border:none;border-radius:999px;padding:var(--space-2) var(--space-3);transition:transform .15s ease,filter .15s ease;font-family:var(--font-heading);letter-spacing:2px}.btn:hover{filter:brightness(1.05)}.btn:active{transform:scale(.98)}.chat .input-row{position:sticky;bottom:0;background:linear-gradient(180deg,#f5f5f599,#f5f5f5f2);padding-top:var(--space-2);backdrop-filter:blur(2px);border-top:1px solid var(--border);z-index:1}@media (max-width: 1024px){.grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.grid{grid-template-columns:1fr}.container{padding:var(--space-4)}}@media (prefers-reduced-motion: reduce){*{scroll-behavior:auto;animation:none;transition:none}}.ink-bg{position:relative;background:radial-gradient(1000px 600px at 10% 20%,rgba(0,0,0,.03),transparent 60%),radial-gradient(800px 400px at 80% 30%,rgba(0,0,0,.02),transparent 60%),var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-1);padding:var(--space-4)}.profile-content .lead{color:var(--text-2)}.profile-content .list{padding-left:1rem}.portfolio-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-3)}.work-card{background:var(--paper);border:1px solid var(--border);border-radius:var(--radius-1);padding:var(--space-3);position:relative;transition:transform .2s ease,box-shadow .2s ease}.work-card:hover{transform:translateY(-2px);box-shadow:0 6px 16px #00000014}.work-topline{position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--gold),var(--red))}.work-title{color:var(--text-1);margin:0 0 var(--space-2)}.work-kind{color:var(--green);margin:0 0 var(--space-2)}.work-desc{margin:0 0 var(--space-2)}.work-tags{display:flex;flex-wrap:wrap;gap:var(--space-1)}.tag{display:inline-block;border:1px solid var(--border);color:var(--text-3);padding:2px 6px;border-radius:12px;font-size:.85rem;background:#faf9f6}.tag:hover{color:var(--text-2);border-color:var(--gold)}@media (max-width: 1024px){.portfolio-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.portfolio-grid{grid-template-columns:1fr}}.timeline-list{position:relative;padding-left:2rem}.timeline-list:before{content:"";position:absolute;left:.9rem;top:0;bottom:0;width:2px;background:linear-gradient(180deg,#3339,#bfa06566)}.timeline-item{position:relative;display:grid;grid-template-columns:auto 1fr;gap:var(--space-2);margin-bottom:var(--space-3)}.timeline-item .node{width:12px;height:12px;border-radius:50%;background:var(--gold);border:2px solid rgba(0,0,0,.25);position:relative;top:6px}.timeline-item .time{color:var(--text-3);font-size:.9rem}.timeline-item .title{color:var(--text-1)}.timeline-item .detail{color:var(--text-2)}.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:var(--space-2);max-width:640px}.contact-list .label{display:inline-block;min-width:96px;color:var(--text-3)}.contact-list .value a{color:var(--red);text-decoration:none}.contact-list .value a:hover{text-decoration:underline}.typing{display:inline-flex;gap:6px;padding:8px 10px;border-radius:10px;background:#efefe9;border:1px solid var(--border)}.typing .dot{width:6px;height:6px;border-radius:50%;background:var(--text-3);animation:dots 1s infinite ease-in-out}.typing .dot:nth-child(2){animation-delay:.15s}.typing .dot:nth-child(3){animation-delay:.3s}@keyframes dots{0%,80%,to{transform:translateY(0);opacity:.6}40%{transform:translateY(-4px);opacity:1}}.preset-chips{display:flex;flex-wrap:wrap;gap:var(--space-1);margin-bottom:var(--space-2);padding:0 var(--space-1)}.chip-btn{background:var(--paper);border:1px solid var(--border);color:var(--text-2);padding:6px 14px;border-radius:20px;font-size:.85rem;cursor:pointer;transition:all .2s ease;font-family:var(--font-body)}.chip-btn:hover{border-color:var(--gold);color:var(--gold);background:#bfa0651a}.chip-btn:disabled{opacity:.5;cursor:not-allowed;filter:grayscale(1)}.input-hint{font-size:.75rem;color:var(--text-3);margin-top:8px;padding-left:4px;display:flex;align-items:center;gap:6px}.input-hint:before{content:"ℹ";display:inline-flex;justify-content:center;align-items:center;width:14px;height:14px;border-radius:50%;border:1px solid var(--text-3);font-size:10px}