:root{--paper:#f7f8f4;--white:#fff;--ink:#20362f;--muted:#52655c;--green:#1c5945;--line:#dbe3da;--soft:#edf2e9;--deep:#1c4b3e}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;font-size:18px;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:5px}a:hover{color:var(--green)}a:focus-visible,summary:focus-visible{outline:3px solid #648c4a;outline-offset:5px}img{max-width:100%;height:auto}::selection{background:#dfeac7}.wrap{width:min(1192px,calc(100% - 80px));margin-inline:auto}.skip-link{position:absolute;top:-80px;left:20px;padding:10px 16px;background:white;z-index:3}.skip-link:focus{top:10px}
.site-header{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:23px 0;border-bottom:1px solid var(--line)}.brand{font-size:25px;font-weight:800;letter-spacing:-1px;text-decoration:none}.brand span{color:var(--green)}nav{display:flex;align-items:center;gap:28px;font-size:15px;font-weight:550}nav a{text-decoration:none}nav a:hover{text-decoration:underline}.nav-contact{border:1px solid #c8d4c6;border-radius:7px;padding:8px 16px}
.profile{display:grid;grid-template-columns:minmax(0,1fr) 306px;gap:64px;align-items:center;padding:49px 0 45px}.availability{display:flex;gap:9px;align-items:center;font-size:14px;color:var(--muted);margin:0 0 17px}.availability>span{width:7px;height:7px;flex:0 0 7px;background:#578250;border-radius:50%;box-shadow:0 0 0 4px #e7efdf}h1{font-size:39px;line-height:1.2;font-weight:650;letter-spacing:-1.2px;margin:0 0 13px}h1 span{font-weight:450;color:var(--green)}.profile-role{font-size:18px;line-height:1.5;font-weight:600;color:var(--green);margin:0 0 22px}.intro{font-size:18px;line-height:1.75;margin:0 0 15px;color:var(--muted)}.intro strong{font-weight:600;color:var(--ink)}.profile-actions{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:25px}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;padding:11px 17px;border-radius:6px;background:var(--green);color:white;border:1px solid var(--green);font-size:15px;font-weight:600;text-decoration:none}.button:hover{background:#164b39;color:white}.button-outline{background:transparent;color:var(--ink);border-color:#bfcdbd}.button-outline:hover{background:var(--soft);color:var(--ink)}.inline-link{font-size:15px;font-weight:550;margin-left:6px}.portrait{margin:0;background:#e9ede6;border:1px solid #d3ded0;padding:9px;border-radius:12px}.portrait img{display:block;width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:7px}.portrait figcaption{display:flex;justify-content:space-between;padding:9px 3px 0;font-size:12px;color:var(--muted)}
.background-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));background:white;border:1px solid var(--line);border-radius:10px;overflow:hidden}.background-item{display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between;gap:14px;padding:22px;text-decoration:none;min-width:0}.background-item+.background-item{border-left:1px solid var(--line)}.background-item:hover{background:#fafbf8}.background-label{text-transform:uppercase;font-size:11px;letter-spacing:1.3px;color:var(--muted)}.background-item img{display:block;width:100%;height:52px;object-fit:contain;object-position:left center}.background-item .logo-hitachi{max-width:147px}.background-item .logo-bilibili{max-width:133px}.background-item>span:last-child{font-size:13px;line-height:1.5;color:var(--muted)}
.section{padding-top:66px;padding-bottom:2px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:34px;margin-bottom:28px}.section-label{font-size:12px;font-weight:650;letter-spacing:1.8px;text-transform:uppercase;color:var(--green);margin:0 0 9px}h2{font-size:31px;line-height:1.25;font-weight:600;letter-spacing:-.7px;margin:0}.section-heading>p{max-width:350px;font-size:16px;color:var(--muted);line-height:1.6;margin:0}.experience-card{display:grid;grid-template-columns:255px minmax(0,1fr);gap:42px;background:white;border:1px solid var(--line);border-radius:12px;padding:32px;margin-bottom:24px}.employer{position:relative;padding-right:25px;border-right:1px solid var(--line)}.employer-logo{height:65px;display:flex;align-items:center;margin-bottom:19px}.employer-logo img{width:165px;max-height:61px;object-fit:contain;object-position:left center}.employer-logo .bilibili{width:140px}.employer h3{font-size:25px;line-height:1.3;letter-spacing:-.5px;margin:0 0 10px}.job-title{font-size:17px;font-weight:600;line-height:1.5;margin:0 0 16px}.dates,.location{font-size:14px;color:var(--muted);margin:2px 0}.outcome{background:var(--soft);border-left:3px solid #81a06e;border-radius:0 6px 6px 0;padding:13px 12px;margin-top:25px}.outcome strong{display:block;font-size:17px;line-height:1.5;color:var(--green)}.outcome span{display:block;font-size:12px;line-height:1.5;margin-top:5px;color:var(--muted)}.work-summary{font-size:19px;font-weight:500;line-height:1.65;margin:0 0 21px}.work-list{margin:0;padding-left:20px;color:var(--muted);font-size:17px;line-height:1.75}.work-list li{padding-left:4px;margin:0 0 15px}.work-list strong{font-weight:600;color:var(--ink)}.technology-list{display:flex;gap:7px;flex-wrap:wrap;margin-top:23px}.technology-list span{font-size:12px;line-height:1.5;padding:5px 10px;background:#f2f5ef;border:1px solid #e0e7dc;border-radius:5px;color:#3c5548}
.education-section{margin-top:53px;background:#eef2e9;border-top:1px solid #e3e9dd;border-bottom:1px solid #e3e9dd}.education-section .section{padding-top:52px;padding-bottom:55px}.education-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}.education-card{padding:29px;background:white;border:1px solid #dce4d6;border-radius:11px}.university-logo{width:262px;height:70px;object-fit:contain;object-position:left center;display:block;margin-bottom:23px}.education-card h3{font-size:23px;line-height:1.4;margin:8px 0 9px;font-weight:600;letter-spacing:-.3px}.degree{font-size:18px;line-height:1.6;margin:0 0 12px}.grade{display:inline-block;background:#eef4e7;border-radius:5px;padding:4px 10px;font-size:15px;color:var(--green);margin:0 0 12px}.completion{font-size:15px;color:var(--muted);line-height:1.7;margin:0 0 22px}.education-card h4{font-size:16px;font-weight:650;margin:21px 0 13px}.course-list{list-style:none;padding:0;margin:0;border-top:1px solid #e4e9df}.course-list li{font-size:16px;line-height:1.55;padding:11px 0;border-bottom:1px solid #e9ede6}.course-list li>span{display:block;font:11px/1.5 ui-monospace,SFMono-Regular,monospace;letter-spacing:.6px;color:#637565;margin-bottom:4px}.course-list small{display:block;font-size:14px;color:var(--muted);margin-top:4px}.education-highlights p{font-size:15px;line-height:1.8;color:var(--muted);margin:0}
.skills{padding-top:57px}.skills-grid{display:grid;grid-template-columns:.85fr 1.1fr 1.1fr;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:white}.skill-group{padding:23px}.skill-group+.skill-group{border-left:1px solid var(--line)}.skill-group h3{font-size:18px;font-weight:600;margin:0 0 10px}.skill-group p{font-size:17px;line-height:1.65;margin:0 0 10px}.skill-group>span{font-size:14px;line-height:1.6;display:block;color:var(--muted)}
.projects{padding-top:60px;padding-bottom:65px}.project-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.project-card{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:white;display:flex;flex-direction:column}.project-heading{padding:23px 24px;min-height:123px;border-bottom:1px solid #dce4d7}.project-heading.green{background:#e5eddf}.project-heading.blue{background:#e8edf3}.project-heading.sand{background:#f0eadd}.project-heading>span{font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--muted)}.project-heading h3{font-size:24px;line-height:1.3;font-weight:600;letter-spacing:-.5px;margin:12px 0 0}.project-body{display:flex;flex-direction:column;flex:1;padding:24px}.project-body p{font-size:17px;line-height:1.7;color:var(--ink);margin:0 0 15px}.project-body .project-detail{font-size:15px;color:var(--muted)}.project-body .technology-list{margin-top:auto;padding-top:7px;margin-bottom:23px}.project-links{display:flex;flex-direction:column;gap:10px;border-top:1px solid var(--line);padding-top:17px}.project-links a{font-size:15px;font-weight:600;text-decoration:none}.project-links a:hover{text-decoration:underline}
.contact-section{background:var(--deep);color:white}.contact{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:45px;padding-top:46px;padding-bottom:48px}.contact .section-label{color:#d2e3b5}.contact h2{font-size:30px}.contact p:not(.section-label){max-width:580px;font-size:17px;line-height:1.7;color:#e0e8dd;margin:16px 0 0}.contact-links{display:flex;flex-direction:column;gap:20px}.contact a:hover{color:#dcebc7}.email{font-size:18px;font-weight:550}.social-links{display:flex;gap:20px;flex-wrap:wrap;font-size:14px}.site-footer{display:flex;justify-content:space-between;gap:20px;padding-top:21px;padding-bottom:26px;font-size:13px;color:var(--muted)}.site-footer a{text-decoration:none}
@media(min-width:1500px){.profile{padding-top:59px;padding-bottom:53px}}
@media(max-width:1050px){.wrap{width:calc(100% - 56px)}.profile{grid-template-columns:minmax(0,1fr) 260px;gap:36px}h1{font-size:35px}.intro{font-size:17px}.profile-role{font-size:17px}.profile-actions{gap:11px}.button{font-size:14px;padding:10px 13px}.background-item{padding:18px;gap:12px}.background-item>span:last-child{font-size:12px}.experience-card{grid-template-columns:220px minmax(0,1fr);gap:28px;padding:27px}.employer{padding-right:21px}.work-list{font-size:16px}.work-summary{font-size:18px}.education-card{padding:24px}.project-grid{gap:15px}.project-body{padding:20px}.project-heading{padding:20px}.contact{grid-template-columns:1fr;gap:28px}}
@media(max-width:760px){.wrap{width:calc(100% - 36px)}.site-header{gap:20px;padding:18px 0}.brand{font-size:23px}nav{gap:17px;font-size:13px}.nav-contact{display:none}.profile{grid-template-columns:1fr;gap:28px;padding:29px 0}.availability{font-size:12px;line-height:1.6;margin-bottom:16px}h1{font-size:31px;letter-spacing:-1px}.profile-role{font-size:16px;line-height:1.7;margin-bottom:19px}.intro{font-size:17px;line-height:1.8}.profile-actions{gap:12px;margin-top:22px}.button{padding:10px 13px;font-size:14px;gap:15px}.inline-link{font-size:14px;margin-left:0}.portrait{max-width:340px;width:100%;margin-inline:auto}.portrait img{aspect-ratio:5/4;object-position:center 29%}.portrait figcaption{font-size:11px}.background-strip{grid-template-columns:1fr 1fr}.background-item{padding:17px;gap:13px}.background-item+.background-item{border-left:0}.background-item:nth-child(even){border-left:1px solid var(--line)}.background-item:nth-child(n+3){border-top:1px solid var(--line)}.background-label{font-size:9px;letter-spacing:1px}.background-item img{height:43px}.background-item .logo-bilibili{max-width:116px}.background-item .logo-hitachi{max-width:128px}.background-item>span:last-child{font-size:12px}.section{padding-top:44px}.section-heading{flex-direction:column;align-items:flex-start;gap:13px;margin-bottom:23px}.section-label{font-size:11px}h2{font-size:28px}.section-heading>p{font-size:16px;max-width:100%}.experience-card{grid-template-columns:1fr;gap:23px;padding:22px;margin-bottom:19px}.employer{border-right:0;padding:0 0 21px;border-bottom:1px solid var(--line)}.employer-logo{height:48px;margin-bottom:16px}.employer-logo img{width:145px;max-height:48px}.employer-logo .bilibili{width:125px}.employer h3{font-size:24px}.job-title{font-size:17px;max-width:340px;margin-bottom:12px}.dates,.location{font-size:14px}.outcome{margin-top:17px;max-width:360px}.outcome strong{font-size:16px}.outcome span{font-size:12px}.work-summary{font-size:18px;line-height:1.7}.work-list{font-size:16px;line-height:1.8;padding-left:18px}.work-list li{padding-left:2px;margin-bottom:16px}.technology-list{gap:6px;margin-top:21px}.technology-list span{font-size:11px;padding:5px 8px}.education-section{margin-top:29px}.education-section .section{padding-top:39px;padding-bottom:38px}.education-grid{grid-template-columns:1fr;gap:20px}.education-card{padding:23px}.university-logo{max-width:255px;width:100%;height:64px;margin-bottom:20px}.education-card h3{font-size:22px}.degree{font-size:17px}.course-list li{font-size:16px}.skills-grid{grid-template-columns:1fr}.skill-group{padding:21px}.skill-group+.skill-group{border-left:0;border-top:1px solid var(--line)}.skills{padding-top:42px}.projects{padding-top:43px;padding-bottom:42px}.project-grid{grid-template-columns:1fr;gap:20px}.project-heading{min-height:116px;padding:22px}.project-body{padding:23px}.project-body p{font-size:17px}.project-body .project-detail{font-size:15px}.project-links{flex-direction:row;flex-wrap:wrap;gap:20px}.project-links a{font-size:14px}.project-body .technology-list{margin-top:0}.contact{gap:25px;padding-top:35px;padding-bottom:37px}.contact h2{font-size:28px}.contact p:not(.section-label){font-size:16px}.email{font-size:16px;overflow-wrap:anywhere}.social-links{font-size:13px;gap:18px}.site-footer{font-size:11px;gap:14px}}
@media(max-width:360px){nav{gap:11px;font-size:12px}.brand{font-size:22px}h1{font-size:28px}.button{gap:10px;font-size:13px;padding:10px 11px}.background-item{padding:14px}.background-label{letter-spacing:.6px}.experience-card,.education-card{padding:19px}.project-body{padding:20px}.profile-role{font-size:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}