/* ============================================================
   泡沫的小屋 · 个人技术档案
   设计：现代基础设施 / 冷白层级 / 深海蓝网络图
   字体：阿里巴巴普惠体 3.0（自托管 woff2）
   ============================================================ */
@font-face{font-family:'Alibaba PuHuiTi 3.0';src:url('../fonts/AlibabaPuHuiTi-3-55-Regular.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Alibaba PuHuiTi 3.0';src:url('../fonts/AlibabaPuHuiTi-3-65-Medium.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:'Alibaba PuHuiTi 3.0';src:url('../fonts/AlibabaPuHuiTi-3-75-SemiBold.woff2') format('woff2');font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:'Alibaba PuHuiTi 3.0';src:url('../fonts/AlibabaPuHuiTi-3-85-Bold.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:'Alibaba PuHuiTi 3.0';src:url('../fonts/AlibabaPuHuiTi-3-95-ExtraBold.woff2') format('woff2');font-weight:800;font-style:normal;font-display:swap}

:root{
  --paper:#F4F6F9;
  --paper-2:#EDF1F6;
  --card:#FFFFFF;
  --ink:#101828;
  --ink-2:#344054;
  --muted:#667085;
  --faint:#98A2B3;
  --line:#E4E9F0;
  --line-dark:#D4DCE7;
  --signal:#315CDB;
  --signal-2:#6C8DFF;
  --signal-soft:#E7EDFF;
  --night:#0D1626;
  --night-2:#162238;
  --night-line:#2A3A52;
  --warning:#C8643B;
  --mono:"Alibaba PuHuiTi 3.0",sans-serif;
  --nav-h:72px;
  --anchor-gap:24px;
  --section-anchor-gap:0px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-sm:0 8px 24px rgba(16,24,40,.06);
  --shadow-lg:0 28px 80px rgba(16,24,40,.14);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-y:scroll;-webkit-text-size-adjust:100%}
body{font-family:"Alibaba PuHuiTi 3.0",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--signal);color:#fff}
:focus-visible{outline:2px solid var(--signal-2);outline-offset:4px}
.container{width:min(1240px,100%);margin:0 auto;padding:0 32px}
section[id],header[id],#skills,#certs,#principles,[id^="log-"],[id^="rg-"],[id^="tl-"]{scroll-margin-top:var(--nav-h)}
.skip-link{position:fixed;left:16px;top:-60px;z-index:2200;background:var(--night);color:#fff;padding:10px 16px;font-size:13px}
.skip-link:focus{top:12px}
.scroll-progress{position:fixed;z-index:1300;top:0;left:0;width:0;height:3px;background:var(--signal-2)}

/* ---------- 导航 ---------- */
.nav{position:fixed;inset:0 0 auto;z-index:1000;height:var(--nav-h);background:rgba(242,244,238,.92);border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);transition:background .25s,box-shadow .25s}
.nav.scrolled{background:rgba(251,252,248,.97);box-shadow:0 8px 28px rgba(21,34,28,.06)}
.nav-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{font-size:17px;font-weight:700;border:1px solid var(--ink);padding:4px 9px;line-height:1.35;background:var(--ink);color:#fff}
.brand-text{display:flex;flex-direction:column;font-size:15px;font-weight:700;line-height:1.2}
.brand-text em{font-style:normal;font-size:9px;font-weight:400;letter-spacing:.08em;color:var(--muted);margin-top:5px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links .nav-link{position:relative;display:flex;align-items:baseline;gap:7px;padding:8px 0;font-size:13px;font-weight:500;color:var(--muted);transition:color .2s}
.nav-links .nav-link>span{font-family:var(--mono);font-size:9px;color:var(--faint)}
.nav-links .nav-link::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--signal);transition:right .25s}
.nav-links .nav-link:hover,.nav-links .nav-link.active{color:var(--ink)}
.nav-links .nav-link:hover::after,.nav-links .nav-link.active::after{right:0}
.nav-cta{border:1px solid var(--ink);padding:8px 14px;font-size:12px;font-weight:600;transition:background .2s,color .2s}
.nav-cta:hover{background:var(--ink);color:#fff}

/* 二级菜单：只保留内容名称，桌面悬停展开，具体关闭时序见末尾现代视觉体系 */
.nav-links>.nav-item{position:relative;display:flex;align-items:center;height:var(--nav-h)}
.nav-more{display:none}
.submenu{position:absolute;top:100%;left:50%;translate:-50% 0;z-index:1004;width:max-content;min-width:220px;max-width:360px;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-8px);transition:opacity .18s ease .44s,transform .18s ease .44s,visibility .18s linear .44s}
.nav-item:hover>.submenu,.nav-item:focus-within>.submenu,.nav-item.open>.submenu{opacity:1;visibility:visible;pointer-events:auto;transform:none;transition-delay:.05s}
.nav-item:last-child>.submenu{left:auto;right:0;translate:0 0}
.sm-panel{background:rgba(251,252,248,.985);border:1px solid var(--line-dark);border-top:0;box-shadow:0 24px 48px rgba(21,34,28,.15);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.sm-list{list-style:none;margin:0;padding:0;max-height:min(66vh,560px);overflow:auto;overscroll-behavior:contain}
.sm-list li{margin:0}
.sm-list li+li{border-top:1px solid rgba(21,34,28,.09)}
.nav-links .sm-list a{display:block;padding:13px 18px;box-shadow:inset 2px 0 0 transparent;font-size:14.5px;line-height:1.55;color:var(--ink);transition:background .16s,box-shadow .16s}
.sm-list a::after{display:none}
.sm-list a:hover,.sm-list a:focus-visible{background:rgba(8,118,88,.09);box-shadow:inset 2px 0 0 var(--signal);outline:none}
.sm-list a.on .sm-title{font-weight:600;color:var(--signal)}
.sm-title{display:block;white-space:normal}

/* 二级菜单跳转后的目标高亮 */
@keyframes navFlash{
  0%,62%{box-shadow:0 0 0 2px rgba(8,118,88,.85),0 0 0 10px rgba(8,118,88,.12)}
  100%{box-shadow:0 0 0 2px rgba(8,118,88,0),0 0 0 10px rgba(8,118,88,0)}
}
.nav-flash{animation:navFlash 2.4s ease}
.burger{display:none;position:relative;z-index:1003;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:23px;height:1.5px;background:var(--ink);transition:transform .3s,opacity .3s}
.burger.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* ---------- 首屏：个人技术档案 ---------- */
.hero{position:relative;min-height:100vh;min-height:100dvh;display:flex;align-items:center;padding:calc(var(--nav-h) + 34px) 0 34px;background-color:var(--paper);background-image:linear-gradient(rgba(21,34,28,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(21,34,28,.045) 1px,transparent 1px);background-size:48px 48px}
.hero-container{position:relative}
.hero-register{display:flex;justify-content:space-between;gap:20px;padding-bottom:14px;border-bottom:1px solid var(--line-dark);font-family:var(--mono);font-size:9px;letter-spacing:.12em;color:var(--muted)}
.hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:60px;align-items:center;padding:42px 0 38px}
.hero-kicker{display:flex;align-items:center;gap:9px;font-family:var(--mono);font-size:10px;letter-spacing:.09em;color:var(--signal);font-weight:700}
.status-dot{width:7px;height:7px;background:var(--signal-2);box-shadow:0 0 0 4px rgba(22,163,119,.12)}
.hero h1{margin-top:22px;font-size:clamp(78px,8vw,112px);font-weight:800;line-height:.98;letter-spacing:-.06em}
.hero h1 span{display:block;margin-top:18px;font-family:var(--mono);font-size:12px;font-weight:400;letter-spacing:.34em;color:var(--muted)}
.hero-statement{margin-top:26px;font-size:clamp(27px,2.8vw,38px);font-weight:700;line-height:1.45;letter-spacing:-.025em}
.hero-desc{max-width:570px;margin-top:20px;color:var(--muted);font-size:14.5px;line-height:1.95}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:26px;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:22px;min-height:46px;padding:11px 18px;border:1px solid var(--ink);font-size:13px;font-weight:600;transition:background .2s,color .2s,transform .2s}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--signal);border-color:var(--signal);transform:translateY(-2px)}
.text-link{font-size:13px;font-weight:600;border-bottom:1px solid var(--line-dark);padding:8px 0 5px}
.text-link span{color:var(--signal);margin-left:8px}
.text-link:hover{border-color:var(--signal);color:var(--signal)}

/* 工作半径图 */
.system-map{width:100%;max-width:540px;justify-self:end;background:var(--night);color:#E9F2EC;border:1px solid var(--night);box-shadow:14px 14px 0 var(--signal-soft)}
.map-head,.map-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px;font-family:var(--mono);font-size:8.5px;letter-spacing:.08em;color:#A9BDB2;border-bottom:1px solid var(--night-line)}
.map-live{display:flex;align-items:center;gap:6px;color:#75D7B1;white-space:nowrap}
.map-live i{width:5px;height:5px;background:#64D7AC;animation:blink 2s infinite}
@keyframes blink{50%{opacity:.35}}
.map-body{position:relative;height:390px;overflow:hidden}
.map-body svg{position:absolute;inset:0;width:100%;height:100%}
.map-grid path{fill:none;stroke:#233D33;stroke-width:1}
.map-links path{fill:none;stroke:#4A8C73;stroke-width:1.2;stroke-dasharray:5 6;animation:dash 18s linear infinite}
.map-links path.secondary{stroke:#2C5041;stroke-dasharray:2 8}
.map-points circle{fill:#75D7B1}
@keyframes dash{to{stroke-dashoffset:-220}}
.map-node{position:absolute;width:174px;padding:12px 13px;background:var(--night-2);border:1px solid var(--night-line)}
.map-node span{display:block;font-family:var(--mono);font-size:7.5px;letter-spacing:.07em;color:#7FA18F}
.map-node b{display:block;margin-top:5px;font-size:16px;line-height:1.3;font-weight:600;color:#F3F8F5}
.map-node small{display:block;margin-top:5px;font-size:9.5px;color:#9DB3A7}
.node-a{left:24px;top:44px}.node-b{right:24px;top:44px}.node-c{left:24px;bottom:38px}.node-d{right:24px;bottom:38px}
.map-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:104px;height:104px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#D8E9DE;color:var(--night);border:6px solid var(--night);outline:1px solid #5C8B75;text-align:center}
.map-core span{font-family:var(--mono);font-size:27px;font-weight:700;line-height:1}
.map-core small{margin-top:8px;font-family:var(--mono);font-size:7px;line-height:1.5;letter-spacing:.12em}
.map-foot{border-top:1px solid var(--night-line);border-bottom:0;font-size:7.5px;padding:11px 16px}

.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark)}
.hstat{padding:18px 22px 17px;border-right:1px solid var(--line)}
.hstat:first-child{padding-left:0}.hstat:last-child{border-right:0}
.hstat b{display:block;font-family:var(--mono);font-size:25px;line-height:1.25;font-weight:700;letter-spacing:-.05em}
.hstat span{display:block;margin-top:5px;font-size:10.5px;color:var(--muted)}
.hero-footnote{display:flex;justify-content:space-between;gap:20px;padding-top:14px;font-family:var(--mono);font-size:8px;letter-spacing:.09em;color:var(--faint)}

/* ---------- 通用区块 ---------- */
.section{padding:104px 0}
.section-head{display:grid;grid-template-columns:210px 1fr;gap:34px;padding-top:18px;border-top:1px solid var(--line-dark);margin-bottom:48px}
.section-index{font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--signal);padding-top:9px}
.section-index.light{color:#75D7B1}
.section-head h2,.about-main h2,.journey-intro h2,.contact-heading h2{font-size:clamp(31px,3.5vw,46px);line-height:1.3;font-weight:700;letter-spacing:-.035em}
.section-head p{max-width:650px;margin-top:12px;font-size:14px;color:var(--muted);line-height:1.85}
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.visible{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.07s}.reveal[data-delay="2"]{transition-delay:.14s}.reveal[data-delay="3"]{transition-delay:.21s}

/* ---------- 工作半径列表 ---------- */
.capabilities{padding-top:86px;background:var(--card)}
.cap-list{border-top:1px solid var(--line)}
.cap-row{display:grid;grid-template-columns:54px 190px minmax(0,1fr) 260px;gap:26px;align-items:start;padding:28px 0;border-bottom:1px solid var(--line)}
.cap-num{font-family:var(--mono);font-size:11px;color:var(--faint);padding-top:5px}
.cap-title{display:flex;align-items:center;gap:12px}
.cap-icon{width:34px;height:34px;display:grid;place-items:center;color:var(--signal);border:1px solid var(--line)}
.cap-icon svg{width:20px;height:20px}
.cap-title h3{font-size:19px;font-weight:700}
.cap-desc{font-size:13.5px;color:var(--muted);line-height:1.9}
.cap-tags{display:flex;flex-wrap:wrap;gap:6px}
.cap-tags span{font-family:var(--mono);font-size:9px;color:var(--ink-2);background:var(--paper);border:1px solid var(--line);padding:3px 7px}

/* ---------- 项目案例 ---------- */
.projects{background:var(--paper-2)}
.archive-note{display:flex;flex-wrap:wrap;gap:8px 26px;margin:-22px 0 28px;padding-left:244px;font-size:10px;color:var(--muted)}
.archive-note span::before{content:none}
.filter-bar{display:flex;flex-wrap:wrap;gap:0;margin-bottom:26px;border-bottom:1px solid var(--line-dark)}
.filter-btn{padding:9px 18px;border:1px solid var(--line);border-bottom:0;border-right:0;background:transparent;font-family:var(--mono);font-size:10px;color:var(--muted);transition:background .2s,color .2s}
.filter-btn:last-child{border-right:1px solid var(--line)}
.filter-btn:hover{background:var(--card);color:var(--ink)}
.filter-btn.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.project-grid{border-top:1px solid var(--line-dark)}
.project-card{position:relative;display:grid;grid-template-columns:74px minmax(0,1fr) 300px 34px;gap:28px;align-items:center;padding:28px 18px 28px 0;border-bottom:1px solid var(--line-dark);cursor:pointer;transition:background .25s,padding-left .25s}
.project-card:hover{background:rgba(251,252,248,.75);padding-left:18px}
.project-card.hide{display:none}
.pc-index{align-self:stretch;display:flex;flex-direction:column;justify-content:space-between;font-family:var(--mono);font-size:10px;color:var(--signal)}
.pc-index span{font-size:9px;color:var(--faint);writing-mode:vertical-rl;transform:rotate(180deg);letter-spacing:.06em}
.pc-cat{display:inline-block;font-family:var(--mono);font-size:9px;letter-spacing:.06em;color:var(--signal);margin-bottom:9px}
.pc-copy h3{font-size:23px;line-height:1.4;font-weight:700;letter-spacing:-.02em}
.pc-result{max-width:540px;margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.8}
.pc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.pc-tags span{font-family:var(--mono);font-size:9px;color:var(--muted);border:1px solid var(--line);padding:3px 7px;background:rgba(251,252,248,.5)}
.pc-media{aspect-ratio:16/10;overflow:hidden;border:1px solid var(--line);background:#fff}
.pc-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.project-card:hover .pc-media img{transform:scale(1.025)}
.pc-open{font-family:var(--mono);font-size:18px;color:var(--signal);transition:transform .25s}
.project-card:hover .pc-open{transform:translate(3px,-3px)}

/* ---------- 故障回顾 ---------- */
.problems{background:var(--card)}
.problem-featured{border:1px solid var(--night);background:var(--night);color:#EDF5F0;margin-bottom:44px}
.pf-header{display:flex;align-items:center;flex-wrap:wrap;gap:9px 18px;padding:13px 20px;border-bottom:1px solid var(--night-line);font-family:var(--mono);font-size:9px;color:#91AA9C;letter-spacing:.06em}
.pf-header .log-id{color:#75D7B1}.pf-header .pf-date{margin-left:auto}
.pf-main{display:grid;grid-template-columns:1.05fr .95fr}
.pf-copy{padding:34px 32px}
.pf-copy h3{max-width:570px;font-size:clamp(25px,2.8vw,36px);line-height:1.4;font-weight:700;letter-spacing:-.025em}
.pf-lead{margin-top:15px;font-size:13.5px;line-height:1.95;color:#B8C8BE}
.pf-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.pf-tags span{font-family:var(--mono);font-size:9px;border:1px solid var(--night-line);padding:3px 7px;color:#9FC5B1}
.pf-steps{display:grid;grid-template-columns:1fr 1fr;gap:16px 20px;margin-top:26px;counter-reset:step}
.pf-steps li{position:relative;padding-top:11px;border-top:1px solid var(--night-line);font-size:11.5px;line-height:1.8;color:#AFC2B6;counter-increment:step}
.pf-steps li::before{content:"0" counter(step);display:block;margin-bottom:5px;font-family:var(--mono);font-size:9px;color:#75D7B1}
.pf-media{display:flex;align-items:center;justify-content:center;min-height:460px;background:#EDF1EA;padding:22px;border-left:1px solid var(--night-line)}
.pf-media img{width:100%;height:auto;max-height:470px;object-fit:contain;border:1px solid #D3DBD1}
.pf-resolution{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--night-line)}
.pf-resolution>div{padding:23px 28px}
.pf-resolution>div+div{border-left:1px solid var(--night-line)}
.pf-resolution b{display:block;margin-bottom:7px;font-family:var(--mono);font-size:9px;letter-spacing:.08em;color:#75D7B1}
.pf-resolution p{font-size:12px;line-height:1.9;color:#B8C8BE}
.problem-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.problem-card{border:1px solid var(--line-dark);background:var(--paper);transition:transform .25s,box-shadow .25s}
.problem-card:hover{transform:translateY(-4px);box-shadow:8px 8px 0 var(--signal-soft)}
.pr-media{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line-dark);background:#fff}
.pr-media img{width:100%;height:100%;object-fit:cover}
.pr-body{padding:20px}
.pr-meta{display:flex;justify-content:space-between;gap:10px;font-family:var(--mono);font-size:8.5px;color:var(--faint)}
.pr-meta .src{color:var(--signal)}
.pr-body h3{margin-top:10px;font-size:19px;line-height:1.5;font-weight:700}
.pr-problem{margin-top:10px;font-size:12.5px;line-height:1.85;color:var(--muted)}
.pr-details{margin-top:15px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.pr-details summary{position:relative;padding:10px 22px 10px 0;font-family:var(--mono);font-size:9px;color:var(--signal);cursor:pointer;list-style:none}
.pr-details summary::-webkit-details-marker{display:none}
.pr-details summary::after{content:"+";position:absolute;right:2px;top:7px;font-size:15px}
.pr-details[open] summary::after{content:"−"}
.pr-detail-body{padding:0 0 13px}
.pr-detail-body b{display:block;margin:8px 0 3px;font-family:var(--mono);font-size:9px;color:var(--ink)}
.pr-detail-body p{font-size:11.5px;line-height:1.8;color:var(--muted)}
.pr-result{margin-top:14px;font-size:12px;line-height:1.8;color:var(--signal)}
.pr-result::before{content:"处理结果：";font-size:10px}

/* ---------- 完整工作笔记 ---------- */
.register{background:var(--card)}
.register-legend{display:flex;align-items:center;flex-wrap:wrap;gap:14px 24px;margin:-18px 0 20px;padding:12px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-family:var(--mono);font-size:11px;color:var(--muted)}
.register-legend span{display:flex;align-items:center;gap:7px}
.register-legend i{width:7px;height:7px;display:inline-block}
.register-legend .lg-done{background:var(--signal)}
.register-legend .lg-run{background:#B5822D}
.register-legend .lg-plan{background:#718096}
.register-legend b{margin-left:auto;font-weight:400;color:var(--faint)}
.register-list{border-top:1px solid var(--line-dark)}
.register-item{display:grid;grid-template-columns:82px 108px minmax(0,1fr) 225px 92px;gap:20px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
.rg-year{font-family:var(--mono);font-size:11px;color:var(--signal);white-space:nowrap}
.rg-type{font-size:12px;color:var(--muted);white-space:nowrap}
.rg-main h3{font-size:16px;font-weight:600;line-height:1.5}
.rg-main p{margin-top:2px;font-size:12px;color:var(--muted)}
.rg-scale{font-size:12px;line-height:1.6;color:var(--ink-2)}
.rg-status{justify-self:end;padding:3px 8px;border:1px solid var(--line);font-family:var(--mono);font-size:9px;color:var(--muted);white-space:nowrap}
.rg-status.done{color:var(--signal);border-color:#A7CEBC;background:#EFF6F1}
.rg-status.run{color:#8A621E;border-color:#DCCBA8;background:#FAF5E9}
.rg-status.plan{color:#5C6773;border-color:#C8D0D5;background:#F3F5F5}

/* ---------- 轨迹 ---------- */
.journey{background:var(--night);color:#EDF5F0}
.journey-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:80px;align-items:start}
.journey-intro{position:sticky;top:calc(var(--nav-h) + 32px)}
.journey-intro h2{margin-top:25px}
.journey-intro>p{max-width:450px;margin-top:20px;font-size:13.5px;line-height:1.95;color:#AFC2B6}
.journey-code{display:grid;grid-template-columns:80px 1fr;gap:7px 20px;margin-top:34px;padding-top:20px;border-top:1px solid var(--night-line);font-family:var(--mono);font-size:10px}
.journey-code span{color:#779487}.journey-code b{font-weight:400;color:#D6E5DB}
.timeline{border-top:1px solid var(--night-line)}
.tl-item{display:grid;grid-template-columns:142px 1fr;column-gap:28px;padding:28px 0;border-bottom:1px solid var(--night-line)}
.tl-dot{display:none}
.tl-period{grid-column:1;grid-row:1/6;align-self:start;font-family:var(--mono);font-size:10px;color:#75D7B1;padding-top:4px}
.tl-item h4{grid-column:2;font-size:18px;line-height:1.5;font-weight:600}
.tl-role{grid-column:2;margin-top:4px;font-size:11px;color:#8FAB9A}
.tl-desc{grid-column:2;margin-top:11px;font-size:12px;line-height:1.85;color:#B3C4B9}
.tl-bullets{grid-column:2;display:grid;gap:7px;margin-top:14px}
.tl-bullets li{position:relative;padding-left:14px;font-size:11.5px;line-height:1.8;color:#AFC2B6}
.tl-bullets li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:1px;background:#75D7B1}
.tl-item.current h4::after{content:"至今";display:inline-block;vertical-align:middle;margin-left:10px;padding:2px 6px;border:1px solid #4A8C73;font-size:10px;color:#75D7B1}

/* ---------- 关于我 ---------- */
.about{background:var(--paper)}
.about-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:78px;align-items:start}
.about-main h2{margin-top:24px}
.about-copy{max-width:690px;margin-top:26px}
.about-copy p{margin-top:14px;font-size:14px;line-height:2;color:var(--muted)}
.about-copy p:first-child{margin-top:0;color:var(--ink);font-weight:500}
.side-label{padding-bottom:12px;border-bottom:1px solid var(--line-dark);font-family:var(--mono);font-size:9px;letter-spacing:.09em;color:var(--signal)}
.principles{border-top:0}
.principle{display:grid;grid-template-columns:34px 1fr;gap:14px;padding:20px 0;border-bottom:1px solid var(--line)}
.principle>b{font-family:var(--mono);font-size:10px;font-weight:400;color:var(--signal);padding-top:3px}
.principle h4{font-size:15px;font-weight:700}
.principle p{margin-top:4px;font-size:12px;line-height:1.8;color:var(--muted)}
.skills-block,.cert-block{margin-top:74px}
.subsection-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;padding-bottom:14px;border-bottom:1px solid var(--line-dark)}
.subsection-head h3{font-size:21px;font-weight:700}
.subsection-head span{font-family:var(--mono);font-size:9px;letter-spacing:.07em;color:var(--faint)}
.skill-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 44px}
.skill-group{display:grid;grid-template-columns:150px 1fr;align-items:start;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}
.skill-group h4{font-size:13px;font-weight:600}
.skill-chips{display:flex;flex-wrap:wrap;align-items:center;gap:7px}
.skill-chips span{display:inline-flex;align-items:center;font-family:var(--mono);font-size:9px;line-height:1.5;color:var(--muted);border:1px solid var(--line);padding:4px 9px;background:var(--card);white-space:nowrap}
.cert-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}
.cert-card{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(150px,.6fr);align-items:stretch;border:1px solid var(--line-dark);background:var(--card);text-align:left;transition:box-shadow .25s,transform .25s}
.cert-card:hover{transform:translateY(-3px);box-shadow:7px 7px 0 var(--signal-soft)}
.cert-card img{width:100%;height:100%;min-height:170px;object-fit:contain;background:#fff;border-right:1px solid var(--line);padding:5px}
.cert-info{display:flex;flex-direction:column;justify-content:flex-end;padding:18px}
.cert-info::before{content:"查看证书";margin-bottom:auto;font-size:10px;color:var(--signal)}
.cert-info b{font-size:15px;font-weight:700}
.cert-info span{margin-top:5px;font-size:10.5px;line-height:1.6;color:var(--muted)}

/* ---------- 联系与页脚 ---------- */
.contact{padding:90px 0 0;background:var(--signal-soft);border-top:1px solid var(--line-dark)}
.contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:80px;padding-bottom:76px}
.contact-heading h2{margin-top:24px}
.contact-body>p{max-width:570px;font-size:14px;line-height:1.95;color:var(--muted)}
.email-link{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:26px;padding:15px 0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);font-family:var(--mono);font-size:clamp(16px,2vw,24px);font-weight:700;letter-spacing:-.04em}
.email-link span{font-size:18px;color:var(--signal)}
.email-link:hover{color:var(--signal)}
.copy-button{margin-top:14px;padding:7px 0;border-bottom:1px solid var(--line-dark);font-size:11px;color:var(--muted)}
.copy-button:hover{color:var(--signal);border-color:var(--signal)}
.footer{border-top:1px solid var(--line-dark);padding:19px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-family:var(--mono);font-size:8.5px;color:var(--muted)}
.footer-inner a{color:var(--signal)}

/* ---------- 弹层 ---------- */
.modal,.lightbox{position:fixed;inset:0;z-index:1500;display:none;align-items:center;justify-content:center;padding:24px}
.modal.open,.lightbox.open{display:flex}
.modal-backdrop,.lightbox-backdrop{position:absolute;inset:0;background:rgba(10,25,19,.82);-webkit-backdrop-filter:blur(7px);backdrop-filter:blur(7px)}
.modal-panel{position:relative;z-index:1;width:min(1180px,100%);max-height:92vh;max-height:92dvh;overflow:hidden;background:var(--card);border:1px solid var(--line-dark);display:grid;grid-template-columns:1.04fr .96fr;box-shadow:18px 18px 0 rgba(8,118,88,.25);animation:modalIn .3s var(--ease)}
@keyframes modalIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.modal-close,.lightbox-close{position:absolute;right:14px;top:14px;z-index:3;width:40px;height:40px;display:grid;place-items:center;background:var(--ink);color:#fff;font-family:var(--mono);font-size:21px;border:1px solid var(--ink)}
.modal-close:hover,.lightbox-close:hover{background:var(--signal);border-color:var(--signal)}
.modal-media{position:relative;display:flex;align-items:center;justify-content:center;min-height:100%;padding:28px;background:var(--paper-2);border-right:1px solid var(--line-dark)}
.modal-media img{width:100%;height:auto;max-height:68vh;object-fit:contain;background:#fff;border:1px solid var(--line);cursor:zoom-in}
.media-hint{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);padding:3px 8px;background:var(--card);border:1px solid var(--line);font-family:var(--mono);font-size:8px;color:var(--muted);white-space:nowrap}
.modal-body{max-height:92vh;max-height:92dvh;overflow-y:auto;padding:40px 36px}
.modal-meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:13px;font-family:var(--mono);font-size:9px;color:var(--muted)}
.modal-meta .pc-cat{margin:0;color:var(--signal)}
.modal-meta .mtag{border:1px solid var(--line);padding:2px 6px;white-space:nowrap}
.modal-body h3{font-size:28px;line-height:1.4;font-weight:700;letter-spacing:-.025em}
.modal-lead{margin-top:12px;padding-bottom:20px;border-bottom:1px solid var(--line);font-size:13px;line-height:1.9;color:var(--muted)}
.modal-sections{display:grid;gap:22px;margin-top:22px}
.ms h4{margin-bottom:8px;font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:var(--signal)}
.ms p,.ms li{font-size:12.5px;line-height:1.9;color:var(--ink-2)}
.ms ul{display:grid;gap:7px}
.ms li{position:relative;padding-left:14px}
.ms li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:1px;background:var(--signal)}
.lightbox img{position:relative;z-index:1;max-width:92vw;max-height:88vh;max-height:88dvh;background:#fff;border:1px solid var(--line-dark)}
.lightbox-close{position:absolute;right:20px;top:20px}
.toast{position:fixed;left:50%;bottom:28px;z-index:2200;transform:translate(-50%,14px);max-width:calc(100vw - 32px);padding:10px 16px;background:var(--night);border:1px solid var(--night-line);color:#fff;font-family:var(--mono);font-size:10px;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .hero-grid{gap:38px}.map-node{width:150px}.map-node b{font-size:14px}.map-node small{font-size:8.5px}
  .cap-row{grid-template-columns:44px 170px minmax(0,1fr);gap:20px}.cap-tags{grid-column:3}
  .project-card{grid-template-columns:62px minmax(0,1fr) 250px 26px;gap:20px}
  .about-grid{gap:48px}.cert-card{grid-template-columns:1fr}.cert-card img{border-right:0;border-bottom:1px solid var(--line);min-height:0}.cert-info{min-height:130px}.cert-info::before{margin-bottom:20px}
}
@media (max-width:920px){
  .section{padding:84px 0}
  .hero{min-height:auto;padding-top:calc(var(--nav-h) + 44px)}
  .hero-grid{grid-template-columns:1fr;gap:42px}.hero-copy{max-width:700px}.system-map{max-width:none;justify-self:stretch}.map-body{height:410px}.map-node{width:180px}
  .section-head{grid-template-columns:160px 1fr}.archive-note{padding-left:194px}
  .project-card{grid-template-columns:58px minmax(0,1fr) 220px 24px;gap:18px}.pc-copy h3{font-size:20px}.pc-result{font-size:12px}
  .pf-main{grid-template-columns:1fr}.pf-media{min-height:0;border-left:0;border-top:1px solid var(--night-line)}.pf-media img{max-height:520px}
  .problem-grid{grid-template-columns:1fr 1fr}.problem-card:last-child{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr}.problem-card:last-child .pr-media{aspect-ratio:auto;border-bottom:0;border-right:1px solid var(--line-dark)}
  .journey-grid{grid-template-columns:1fr;gap:46px}.journey-intro{position:static}.journey-intro>p{max-width:650px}.journey-code{max-width:420px}
  .about-grid{grid-template-columns:1fr;gap:44px}.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.principle{grid-template-columns:26px 1fr;gap:8px}
  .skill-group{grid-template-columns:120px 1fr}.contact-inner{gap:44px}
  .modal-panel{grid-template-columns:1fr;overflow-y:auto}.modal-media{min-height:0;height:270px;border-right:0;border-bottom:1px solid var(--line-dark)}.modal-media img{height:100%;width:auto;max-width:100%}.modal-body{max-height:none;overflow:visible}
}
@media (max-width:900px){
  .nav-cta{display:none}.burger{display:flex}.nav-links{position:fixed;top:0;right:-100%;z-index:1002;width:min(84vw,350px);height:100vh;height:100dvh;display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;padding:100px 28px 36px;background:var(--paper);border-left:1px solid var(--line-dark);box-shadow:-24px 0 70px rgba(21,34,28,.16);transition:right .35s var(--ease);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:none}
  .nav-links::-webkit-scrollbar{display:none}
  .nav-links.open{right:0}.nav-links .nav-link{display:flex;width:100%;padding:18px 0;border-bottom:1px solid var(--line);font-size:17px;color:var(--ink)}.nav-links .nav-link>span{font-size:10px}.nav-links .nav-link::after{display:none}
  /* 抽屉内的二级菜单：手风琴展开 */
  .nav-links>.nav-item{display:block;height:auto;border-bottom:1px solid var(--line)}
  .nav-links .nav-link{padding:18px 44px 18px 0;border-bottom:0;font-size:17px}
  .nav-more{display:block;position:absolute;right:0;top:20px;min-width:44px;padding:4px 0;font-size:12px;color:var(--muted);text-align:right}
  .nav-item.open .nav-more{color:var(--signal)}
  .submenu{position:static;translate:none;width:auto;opacity:1;visibility:visible;pointer-events:auto;transform:none;min-width:0;max-width:none;display:none;transition:none}
  .nav-item.open>.submenu{display:block}
  .sm-panel{border:0;background:transparent;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}
  .sm-list{max-height:none;overflow:visible;margin:2px 0 12px 3px;padding-left:13px;border-left:1px solid var(--line-dark)}
  .sm-list li+li{border-top:0}
  .nav-links .sm-list a{padding:12px 0;box-shadow:inset 0 -1px 0 rgba(21,34,28,.07);font-size:15px}
  .nav-links .sm-list li:last-child a{box-shadow:none}
  .nav-links .sm-list a:hover,.nav-links .sm-list a.on{background:transparent;box-shadow:inset 0 -1px 0 rgba(21,34,28,.07)}
  .sm-title{white-space:normal}
  body.menu-open{overflow:hidden}body.menu-open::before{content:"";position:fixed;inset:0;z-index:999;background:rgba(10,25,19,.5);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}
  .contact-inner{grid-template-columns:1fr;gap:34px}.contact-body{max-width:700px}
}
@media (max-width:680px){
  :root{--nav-h:66px}.container{padding:0 20px}.section{padding:70px 0}
  .brand-text em{display:none}.hero{padding-top:calc(var(--nav-h) + 30px);padding-bottom:24px;background-size:36px 36px}.hero-register{font-size:7px}.hero-register span:last-child{display:none}
  .hero-grid{padding:32px 0;gap:34px}.hero h1{font-size:54px;letter-spacing:-.05em;white-space:nowrap}.hero h1 span{font-size:10px;margin-top:14px}.hero-statement{font-size:29px}.hero-desc{font-size:13.5px}.hero-actions{gap:18px}.btn{font-size:12px}.text-link{font-size:12px}
  .system-map{box-shadow:8px 8px 0 var(--signal-soft)}.map-head{font-size:7px;padding:11px 12px}.map-body{height:auto;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--night-line);overflow:visible}.map-body svg{display:none}.map-node{position:static;width:auto;min-height:100px;padding:13px;background:var(--night-2);border:0}.map-node b{font-size:14px}.map-node small{font-size:8.5px}.map-core{position:static;grid-column:1/-1;order:-1;transform:none;width:100%;height:62px;flex-direction:row;gap:14px;border:0;outline:0}.map-core span{font-size:24px}.map-core small{margin:0;text-align:left}.map-foot{flex-wrap:wrap;font-size:6.5px;padding:10px 12px}
  .hero-stats{grid-template-columns:1fr 1fr}.hstat{padding:15px 12px;border-bottom:1px solid var(--line)}.hstat:nth-child(2){border-right:0}.hstat:nth-child(3){padding-left:0;border-bottom:0}.hstat:nth-child(4){border-bottom:0}.hstat b{font-size:22px}.hero-footnote{font-size:6.5px}
  .section-head{grid-template-columns:1fr;gap:12px;margin-bottom:34px}.section-index{padding-top:0}.section-head h2,.about-main h2,.journey-intro h2,.contact-heading h2{font-size:31px}.section-head p{font-size:13px}.archive-note{padding-left:0;margin-top:-14px;font-size:9px;gap:4px 16px}
  .cap-row{grid-template-columns:34px 1fr;gap:12px 14px;padding:23px 0}.cap-title{gap:10px}.cap-desc,.cap-tags{grid-column:2}.cap-title h3{font-size:18px}
  .filter-bar{flex-wrap:nowrap;overflow-x:auto;padding-bottom:1px;scrollbar-width:none}.filter-bar::-webkit-scrollbar{display:none}.filter-btn{flex:0 0 auto;padding:8px 13px;font-size:9px}
  .project-card{grid-template-columns:1fr 28px;grid-template-areas:"index open" "copy copy" "media media";gap:16px;padding:24px 0}.project-card:hover{padding-left:0;background:transparent}.pc-index{grid-area:index;flex-direction:row;align-items:center;justify-content:flex-start;gap:14px}.pc-index span{writing-mode:initial;transform:none}.pc-copy{grid-area:copy}.pc-copy h3{font-size:22px}.pc-result{font-size:13px}.pc-media{grid-area:media}.pc-open{grid-area:open;justify-self:end}
  .pf-header{font-size:8px;padding:11px 14px}.pf-header .pf-date{margin-left:0}.pf-copy{padding:26px 20px}.pf-copy h3{font-size:27px}.pf-steps{grid-template-columns:1fr;gap:13px}.pf-media{padding:12px}.pf-resolution{grid-template-columns:1fr}.pf-resolution>div{padding:20px}.pf-resolution>div+div{border-left:0;border-top:1px solid var(--night-line)}
  .problem-grid{grid-template-columns:1fr}.problem-card:last-child{grid-column:auto;display:block}.problem-card:last-child .pr-media{aspect-ratio:16/10;border-right:0;border-bottom:1px solid var(--line-dark)}
  .tl-item{grid-template-columns:1fr;padding:23px 0}.tl-period{grid-column:1;grid-row:auto;margin-bottom:8px}.tl-item h4,.tl-role,.tl-desc,.tl-bullets{grid-column:1}.tl-item h4{font-size:17px}
  .principles{grid-template-columns:1fr;gap:0}.principle{grid-template-columns:32px 1fr;gap:12px}.skills-block,.cert-block{margin-top:54px}.subsection-head{align-items:flex-start;flex-direction:column;gap:5px}.skill-grid{grid-template-columns:1fr}.skill-group{grid-template-columns:1fr;gap:10px}.cert-grid{grid-template-columns:1fr}.cert-card{grid-template-columns:1.25fr .75fr}.cert-card img{border-bottom:0;border-right:1px solid var(--line);min-height:140px}.cert-info{min-height:0;padding:13px}.cert-info::before{margin-bottom:auto}.cert-info b{font-size:13px}.cert-info span{font-size:9px}
  .contact{padding-top:66px}.contact-inner{padding-bottom:56px}.email-link{font-size:15px}.footer-inner{flex-direction:column;align-items:flex-start;gap:7px}
  .modal{padding:0}.modal-panel{width:100%;height:100vh;height:100dvh;max-height:100vh;max-height:100dvh;border:0;box-shadow:none}.modal-media{height:230px;padding:22px}.modal-body{padding:28px 20px}.modal-body h3{font-size:25px}.lightbox{padding:12px}.lightbox-close{right:12px;top:12px}.toast{bottom:18px;font-size:9px;white-space:normal;text-align:center}
}
@media (max-width:360px){.hero h1{font-size:48px}.hero-statement{font-size:26px}.map-node{padding:10px}.map-node b{font-size:13px}.email-link{font-size:13px}}
/* ---------- 可读性增强：正文与辅助标注 ---------- */
.brand-text em{font-size:9px}
.nav-links .nav-link{font-size:14px}.nav-links .nav-link>span{font-size:10px}.nav-cta{font-size:13px}
.hero-register{font-size:10px}.hero-kicker{font-size:11px}.hero h1 span{font-size:13px}
.hero-desc{font-size:16px}.btn,.text-link{font-size:14px}
.map-head,.map-foot{font-size:10px}.map-node span{font-size:10px}.map-node small{font-size:12px}.map-core small{font-size:8px}
.hstat span{font-size:12px}.hero-footnote{font-size:9px}
.section-index{font-size:12px}.section-head p{font-size:15.5px}
.cap-num{font-size:12px}.cap-desc{font-size:15px}.cap-tags span{font-size:11px}
.archive-note{font-size:12px}.filter-btn{font-size:11px}
.pc-index{font-size:11px}.pc-index span{font-size:10px}.pc-cat{font-size:11px}.pc-result{font-size:15px}.pc-tags span{font-size:11px}
.pf-header{font-size:11px}.pf-lead{font-size:15px}.pf-tags span{font-size:11px}.pf-steps li{font-size:13.5px}
.pf-resolution b{font-size:11px}.pf-resolution p{font-size:14px}
.pr-meta{font-size:11px}.pr-problem{font-size:14px}.pr-details summary{font-size:12px}.pr-detail-body b{font-size:11px}.pr-detail-body p{font-size:13px}.pr-result{font-size:13.5px}.pr-result::before{font-size:10px}
.journey-intro>p{font-size:15px}.journey-code{font-size:11px}.tl-period{font-size:12px}.tl-role{font-size:13px}.tl-desc{font-size:14px}.tl-bullets li{font-size:13px}
.about-copy p{font-size:16px}.side-label{font-size:11px}.principle h4{font-size:16px}.principle p{font-size:14px}
.subsection-head span{font-size:11px}.skill-group h4{font-size:14px}.skill-chips span{font-size:11.5px}
.cert-info::before{font-size:10px}.cert-info b{font-size:16px}.cert-info span{font-size:12px}
.contact-body>p{font-size:16px}.copy-button{font-size:12px}.footer-inner{font-size:11px}
.modal-meta{font-size:11px}.modal-lead{font-size:14.5px}.ms h4{font-size:12px}.ms p,.ms li{font-size:14px}.media-hint{font-size:10px}.toast{font-size:11px}
/* 完整证书：图片在上，说明在下，避免横向缩得过小 */
.cert-card{display:flex;flex-direction:column}
.cert-card img{width:100%;height:auto;aspect-ratio:3508/2481;min-height:0;object-fit:contain;border-right:0;border-bottom:1px solid var(--line);padding:8px}
.cert-info{min-height:118px;padding:18px}.cert-info::before{margin-bottom:18px}
/* 较矮的电脑屏幕：首屏完整落入一屏 */
@media (min-width:901px) and (max-height:860px){
  .hero{min-height:100vh;min-height:100dvh;padding:calc(var(--nav-h) + 18px) 0 18px}
  .hero-register{padding-bottom:10px}.hero-grid{padding:22px 0 20px;gap:40px}
  .hero h1{margin-top:16px;font-size:78px}.hero h1 span{margin-top:10px}
  .hero-statement{margin-top:18px;font-size:30px;line-height:1.35}.hero-desc{margin-top:14px;font-size:15.5px;line-height:1.8}.hero-actions{margin-top:18px}
  .system-map{max-width:480px}.map-head,.map-foot{padding-top:9px;padding-bottom:9px}.map-body{height:270px}
  .map-node{width:148px;padding:9px 11px}.node-a,.node-b{top:28px}.node-c,.node-d{bottom:24px}.map-core{width:88px;height:88px}
  .hstat{padding-top:11px;padding-bottom:11px}.hstat b{font-size:22px}.hstat span{margin-top:3px}.hero-footnote{display:none}
}
@media (max-width:900px){
  .register-item{grid-template-columns:76px 1fr auto;grid-template-areas:"year type status" "main main main" "scale scale scale";gap:7px 14px;padding:19px 0;align-items:start}
  .rg-year{grid-area:year}.rg-type{grid-area:type}.rg-main{grid-area:main;margin-top:3px}.rg-scale{grid-area:scale;font-size:11.5px;color:var(--muted)}.rg-status{grid-area:status}
  .register-legend{margin-top:-10px}.register-legend b{margin-left:0;width:100%}
}
@media (max-width:680px){
  .hero-register{font-size:8px}.hero-kicker{font-size:10px}.hero h1 span{font-size:11px}.hero-desc{font-size:15px}.btn,.text-link{font-size:13px}
  .map-head{font-size:9px}.map-node span{font-size:9px}.map-node b{font-size:15px}.map-node small{font-size:10.5px}.map-foot{font-size:8px}.hero-footnote{font-size:8px}
  .section-head p{font-size:14px}.archive-note{font-size:10px}.filter-btn{font-size:10px}.pc-result{font-size:14px}.pf-header{font-size:9px}.pr-meta{font-size:10px}
  .cert-info{min-height:104px;padding:15px}.footer-inner{font-size:10px}.toast{font-size:10px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}}

/* ---------- 窄桌面（901–1100）：给二级菜单让出空间，避免菜单文字折行 ---------- */
@media (max-width:1100px) and (min-width:901px){
  .nav-inner{gap:16px}
  .nav-links{gap:18px}
  .nav-links .nav-link{font-size:13.5px;white-space:nowrap}
  .nav-links .nav-link>span{display:none}
  .brand-text em{display:none}
  .nav-cta{font-size:12px;padding:7px 11px;white-space:nowrap}
}

/* ============================================================
   现代基础设施视觉体系：冷白、深海蓝、清晰层级
   ============================================================ */
body{background:var(--paper)}
main{position:relative;isolation:isolate}
.container{width:min(1280px,100%);padding:0 36px}
.scroll-progress{height:2px;background:var(--signal)}

/* 轻量玻璃导航 */
.nav{background:rgba(244,246,249,.8);border-bottom-color:transparent;-webkit-backdrop-filter:blur(20px) saturate(150%);backdrop-filter:blur(20px) saturate(150%)}
.nav.scrolled{background:rgba(255,255,255,.9);box-shadow:0 1px 0 rgba(16,24,40,.06),0 10px 32px rgba(16,24,40,.05)}
.nav-inner{position:relative;gap:24px}
.brand{gap:11px}
.brand-mark{width:36px;height:36px;display:grid;place-items:center;padding:0;border:0;border-radius:11px;background:linear-gradient(145deg,#263B60,#101828);box-shadow:inset 0 1px 0 rgba(255,255,255,.18),0 5px 14px rgba(16,24,40,.16);font-size:14px;letter-spacing:0}
.brand-text{font-size:15px;letter-spacing:.01em}
.brand-text em{margin-top:4px;font-size:10px;letter-spacing:.04em;color:var(--muted)}
.nav-links{position:absolute;left:50%;top:50%;translate:-50% -50%;gap:4px;margin-left:0}
.nav-links .nav-link{padding:9px 13px;border-radius:9px;font-size:15px;font-weight:600;color:var(--muted);transition:color .18s,background .18s}
.nav-links .nav-link::after{display:none}
.nav-links .nav-link:hover,.nav-links .nav-link.active{color:var(--ink);background:#E9EEF6}
.nav-links .nav-link.active{font-weight:600;color:var(--ink)}
.nav-cta{margin-left:12px;padding:10px 17px;border:0;border-radius:10px;background:var(--ink);color:#fff;font-size:13px;box-shadow:0 5px 14px rgba(16,24,40,.13);transition:background .18s,transform .18s}
.nav-cta:hover{background:var(--signal);transform:translateY(-1px)}

/* 桌面二级菜单：与父菜单左边缘对齐，移出立即关闭 */
.submenu{left:0;top:100%;min-width:236px;padding-top:10px;translate:0 0;transform:translateY(-4px);transition:opacity .12s ease,transform .12s ease,visibility 0s}
.nav-item:hover>.submenu,.nav-item:focus-within>.submenu,.nav-item.open>.submenu{transition-delay:0s}
.sm-panel{overflow:hidden;border:1px solid rgba(16,24,40,.08);border-radius:14px;background:rgba(255,255,255,.98);box-shadow:0 18px 50px rgba(16,24,40,.16);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}
.sm-list{padding:6px}
.sm-list li+li{border-top:0}
.nav-links .sm-list a{padding:11px 12px;border-radius:9px;box-shadow:none;font-size:14px;color:var(--ink-2);transition:background .14s,color .14s}
.sm-list a:hover,.sm-list a:focus-visible{background:#F0F4FF;box-shadow:none;color:var(--signal)}
.sm-list a.on{background:#F5F7FB}
.sm-list a.on .sm-title{color:var(--signal)}

/* 首屏 */
.hero{position:relative;z-index:2;isolation:isolate;overflow:hidden;padding:calc(var(--nav-h) + 48px) 0 38px;background:transparent}
.hero-canvas{position:fixed;inset:0;z-index:1;display:block;width:100%;height:100%;pointer-events:none;opacity:0;transition:opacity 1.1s ease}
.hero-canvas.ready{opacity:.95}
.hero-container{z-index:1}
.hero-register{padding-bottom:0;border-bottom:0;font-size:11px;letter-spacing:.02em;color:var(--muted)}
.hero-grid{grid-template-columns:1.02fr .98fr;gap:72px;padding:44px 0 40px}
.hero-kicker{display:inline-flex;padding:7px 11px;border:1px solid #DCE4F5;border-radius:999px;background:rgba(255,255,255,.66);font-size:12px;font-weight:600;letter-spacing:0;color:var(--signal)}
.status-dot{width:6px;height:6px;border-radius:50%;background:var(--signal-2);box-shadow:0 0 0 4px rgba(108,141,255,.13)}
.hero h1{margin-top:24px;font-size:clamp(68px,7.2vw,102px);line-height:1.04;letter-spacing:-.055em}
.hero h1 span{margin-top:14px;font-size:13px;font-weight:500;letter-spacing:.08em;color:var(--muted)}
.hero-statement{margin-top:28px;font-size:clamp(26px,2.4vw,34px);font-weight:600;line-height:1.5;letter-spacing:-.02em}
.hero-desc{max-width:570px;margin-top:18px;font-size:16px;line-height:1.9;color:var(--muted)}
.hero-actions{gap:22px;margin-top:30px}
.btn{min-height:48px;padding:12px 22px;border:0;border-radius:12px;font-size:14px;box-shadow:0 8px 18px rgba(49,92,219,.18);transition:background .18s,transform .18s,box-shadow .18s}
.btn-primary{background:var(--signal)}
.btn-primary:hover{background:#264CBC;border-color:#264CBC;transform:translateY(-1px);box-shadow:0 12px 24px rgba(49,92,219,.24)}
.text-link{padding:9px 1px;border-bottom-color:#C6D0DF;font-size:14px}
.text-link:hover{color:var(--signal);border-color:var(--signal)}

/* 首屏视觉重心：网络关系图 */
.system-map{overflow:hidden;border:1px solid rgba(255,255,255,.08);border-radius:24px;background:radial-gradient(circle at 50% 46%,#182945 0,var(--night) 62%);box-shadow:0 28px 80px rgba(16,24,40,.18)}
.map-head,.map-foot{padding:16px 20px;border-bottom-color:rgba(154,174,211,.16);font-size:10px;letter-spacing:.02em;color:#9EACBF}
.map-live{color:#B2C5FF}
.map-live i{border-radius:50%;background:#8BA7FF}
.map-body{height:390px}
.map-grid path{stroke:#1D2C43}
.map-links path{stroke:#5878BE;stroke-width:1.1}
.map-links path.secondary{stroke:#2B405F}
.map-points circle{fill:#8BA7FF}
.map-node{width:174px;padding:14px;border:1px solid rgba(155,175,216,.18);border-radius:14px;background:rgba(255,255,255,.055);box-shadow:inset 0 1px 0 rgba(255,255,255,.04);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.map-node b{color:#F5F7FF;font-size:16px}
.map-node small{color:#9EACBF;font-size:11px}
.map-core{width:108px;height:108px;border:6px solid #152238;border-radius:50%;outline:1px solid rgba(139,167,255,.48);background:linear-gradient(145deg,#7D9FFF,#315CDB);box-shadow:0 0 0 10px rgba(49,92,219,.1),0 12px 30px rgba(0,0,0,.2);color:#fff}
.map-core small{color:#E2E9FF;font-size:8px;letter-spacing:.04em}
.map-foot{padding:13px 20px;border-top-color:rgba(154,174,211,.16);border-bottom:0;font-size:9px}
.hero-stats{margin-top:4px;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.82);box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.hstat{padding:20px 24px;border-right-color:var(--line)}
.hstat:first-child{padding-left:24px}
.hstat b{font-size:28px;letter-spacing:-.03em}
.hstat span{margin-top:6px;font-size:12px}
.hero-footnote{padding-top:16px;font-size:10px;letter-spacing:0}

/* 区块标题、留白与容器内分割线 */
.section{position:relative;z-index:2;padding:48px 0 80px}
section[id],header[id]{scroll-margin-top:calc(var(--nav-h) + var(--section-anchor-gap))}
#skills,#certs,#principles,[id^="log-"],[id^="rg-"],[id^="tl-"]{scroll-margin-top:calc(var(--nav-h) + var(--anchor-gap))}
.section>.container{position:relative}
.section>.container::before{content:"";position:absolute;left:36px;right:36px;top:-24px;height:1px;background:linear-gradient(90deg,transparent,rgba(16,24,40,.1) 12%,rgba(16,24,40,.1) 88%,transparent);pointer-events:none}
.section-head{grid-template-columns:180px 1fr;gap:40px;padding-top:0;border-top:0;margin-bottom:40px}
.section-index{padding-top:11px;font-size:13px;font-weight:600;letter-spacing:0}
.section-head h2,.about-main h2,.journey-intro h2,.contact-heading h2{font-size:clamp(32px,3.4vw,44px);font-weight:700;letter-spacing:-.035em}
.section-head p{max-width:680px;font-size:15.5px}

/* 工作范围：一个整体面板，而非复古表格 */
.capabilities{padding-top:48px;background:var(--paper)}
.cap-list{display:grid;grid-template-columns:repeat(3,1fr);overflow:hidden;border:1px solid var(--line);border-radius:20px;background:var(--card);box-shadow:0 10px 30px rgba(16,24,40,.04)}
.cap-row{display:flex;flex-direction:column;gap:0;padding:30px;border-bottom:0;border-right:1px solid var(--line)}
.cap-row:last-child{border-right:0}
.cap-num{display:none}
.cap-title{gap:12px}
.cap-icon{width:42px;height:42px;border:0;border-radius:12px;background:#EEF3FF;color:var(--signal)}
.cap-title h3{font-size:20px}
.cap-desc{margin-top:20px;font-size:14.5px;line-height:1.9}
.cap-tags{gap:7px;margin-top:auto;padding-top:24px}
.cap-tags span{padding:5px 8px;border:0;border-radius:7px;background:#F2F4F7;font-size:11px;color:var(--ink-2)}

/* 项目案例 */
.projects{background:var(--paper)}
.archive-note{margin:-24px 0 30px;padding-left:220px;font-size:11.5px}
.filter-bar{gap:7px;margin-bottom:28px;border-bottom:0}
.filter-btn{padding:9px 16px;border:1px solid #DCE3EC;border-radius:9px;background:rgba(255,255,255,.58);font-size:12px;font-weight:500;box-shadow:inset 0 1px 0 rgba(255,255,255,.7);transition:background .18s,border-color .18s,color .18s,box-shadow .18s}
.filter-btn:last-child{border-right:1px solid #DCE3EC}
.filter-btn:hover{border-color:#C7D3E4;background:var(--card);color:var(--ink)}
.filter-btn.active{border-color:var(--ink);background:var(--ink);color:#fff;box-shadow:0 5px 12px rgba(16,24,40,.12)}
.project-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;border-top:0}
.project-card{grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"media media" "index open" "copy copy";gap:0;align-items:start;padding:0 0 26px;overflow:hidden;border:1px solid var(--line);border-radius:20px;background:var(--card);box-shadow:0 8px 24px rgba(16,24,40,.04);transition:transform .25s,border-color .25s,box-shadow .25s}
.project-card:hover{padding-left:0;border-color:#C4D2F0;background:var(--card);box-shadow:0 18px 42px rgba(16,24,40,.1);transform:translateY(-4px)}
.pc-index{grid-area:index;display:block;padding:22px 24px 0;font-size:12px;color:var(--muted)}
.pc-copy{grid-area:copy;padding:12px 24px 0}
.pc-cat{margin-bottom:0;padding:4px 7px;border-radius:6px;background:#EEF3FF;font-size:11px}
.pc-copy h3{margin-top:12px;font-size:22px}
.pc-result{margin-top:8px;font-size:14px}
.pc-tags{gap:7px;margin-top:16px}
.pc-tags span{padding:4px 7px;border:0;border-radius:6px;background:#F2F4F7;font-size:10.5px}
.pc-media{grid-area:media;aspect-ratio:16/9;border:0;border-bottom:1px solid var(--line);background:#F8FAFC}
.project-card:hover .pc-media img{transform:scale(1.015)}
.pc-open{grid-area:open;align-self:start;margin:18px 22px 0 0;padding:4px 9px;border:1px solid var(--line);border-radius:7px;background:#F7F9FC;font-size:12px;transition:border-color .18s,background .18s}
.project-card:hover .pc-open{border-color:#C5D3EE;background:#EEF3FF}
.project-card:hover .pc-open{transform:none}

/* 故障回顾 */
.problems{background:var(--paper)}
.problem-featured{overflow:hidden;border:0;border-radius:24px;box-shadow:0 20px 50px rgba(16,24,40,.13)}
.pf-header{padding:16px 24px;font-size:11px;letter-spacing:.02em}
.pf-header .log-id,.pf-resolution b,.pf-steps li::before{color:#A9BEFF}
.pf-copy{padding:38px 34px}
.pf-lead,.pf-resolution p{color:#B4BFD0}
.pf-tags span{border-color:#31435F;color:#B7C7E8}
.pf-steps li{border-top-color:#2A3A52;color:#B4BFD0}
.pf-media{padding:28px;border-left-color:#2A3A52;background:#F3F5F9}
.pf-media img{border:0;border-radius:12px;box-shadow:var(--shadow-sm)}
.pf-resolution,.pf-resolution>div+div{border-color:#2A3A52}
.problem-grid{gap:24px}
.problem-card{overflow:hidden;border:1px solid var(--line);border-radius:18px;background:var(--card);box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s,border-color .25s}
.problem-card:hover{border-color:#CCD7EC;box-shadow:0 18px 40px rgba(16,24,40,.1);transform:translateY(-4px)}
.pr-media{border-bottom-color:var(--line)}
.pr-body{padding:24px}
.pr-details{border-color:var(--line)}
.pr-result{color:#264CBC}

/* 工作笔记 */
.register{background:var(--paper)}
.register-legend{margin:-18px 0 20px;padding:0;border:0;font-size:12px}
.register-list{overflow:hidden;border:1px solid var(--line);border-radius:18px;background:var(--card);box-shadow:var(--shadow-sm)}
.register-item{padding:20px 24px;border-bottom-color:var(--line)}
.register-item:last-child{border-bottom:0}
.rg-status{padding:4px 9px;border:0;border-radius:999px;font-size:10.5px}
.rg-status.done{border-color:transparent;background:#EAF8F0;color:#15744A}
.rg-status.run{border-color:transparent;background:#FFF4DF;color:#946115}
.rg-status.plan{border-color:transparent;background:#EEF2F7;color:#5C6773}

/* 个人经历：沿用统一背景，以白色内容面板承载 */
.journey{background:var(--paper);color:var(--ink)}
.journey-grid{gap:64px;padding:48px;border:1px solid var(--line);border-radius:24px;background:var(--card);box-shadow:var(--shadow-sm)}
.journey>.container::before{background:linear-gradient(90deg,transparent,rgba(16,24,40,.1) 12%,rgba(16,24,40,.1) 88%,transparent)}
.section-index.light,.tl-period{color:var(--signal)}
.journey-intro>p{color:var(--muted)}
.journey-code{border-top-color:var(--line)}
.journey-code span{color:var(--faint)}
.journey-code b{color:var(--ink-2)}
.timeline{border-top-color:var(--line)}
.tl-item{border-bottom-color:var(--line)}
.tl-role{color:var(--muted)}
.tl-desc,.tl-bullets li{color:var(--muted)}
.tl-bullets li::before{background:var(--signal)}
.tl-item.current h4::after{border-color:#C9D7F3;border-radius:999px;background:#EEF3FF;color:var(--signal)}

/* 关于、技能与认证 */
.about{background:var(--paper)}
.about-grid{gap:80px}
.side-label{padding-bottom:0;border-bottom:0;font-size:12px;font-weight:600;letter-spacing:0}
.principles{margin-top:18px;padding:4px 22px;border:1px solid var(--line);border-radius:18px;background:var(--card);box-shadow:var(--shadow-sm)}
.principle{padding:20px 0}
.principle:last-child{border-bottom:0}
.principle>b{color:var(--signal)}
.skills-block,.cert-block{margin-top:80px}
.skills-block{padding:28px 30px;border:1px solid var(--line);border-radius:20px;background:var(--card);box-shadow:var(--shadow-sm)}
.subsection-head{margin-bottom:20px;padding-bottom:0;border-bottom:0}
.subsection-head h3{font-size:24px}
.skill-grid{gap:0 40px}
.skill-group{padding:18px 0}
.skill-chips span{border:0;border-radius:7px;background:#F1F4F8;color:var(--ink-2)}
.cert-grid{gap:24px}
.cert-card{overflow:hidden;border:1px solid var(--line);border-radius:18px;background:var(--card);box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s,border-color .25s}
.cert-card:hover{border-color:#CCD7EC;box-shadow:0 18px 40px rgba(16,24,40,.1);transform:translateY(-3px)}
.cert-card img{padding:12px;border-bottom-color:var(--line)}
.cert-info{min-height:120px;padding:20px}
.cert-info::before{color:var(--signal)}

/* 联系与页脚 */
.contact{padding:56px 0 0;border-top:0;background:var(--paper)}
.contact-inner{padding-bottom:80px}
.email-link{margin-top:28px;padding:18px 20px;border:1px solid #D4DEED;border-radius:14px;background:var(--card);box-shadow:var(--shadow-sm);font-size:clamp(16px,2vw,22px);letter-spacing:-.025em}
.copy-button{margin-top:16px;padding:9px 14px;border:1px solid #D6E0EE;border-radius:9px;background:rgba(255,255,255,.82);font-size:12px;transition:border-color .18s,background .18s,color .18s}
.copy-button:hover{background:var(--card)}
.footer{border-top-color:rgba(16,24,40,.09)}

/* 弹层 */
.modal-backdrop,.lightbox-backdrop{background:rgba(8,15,28,.72);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.modal-panel{border:0;border-radius:24px;box-shadow:0 30px 100px rgba(0,0,0,.35)}
.modal-close,.lightbox-close{width:38px;height:38px;border:0;border-radius:50%;background:rgba(16,24,40,.92)}
.modal-media{border-right-color:var(--line);background:#F3F6FA}
.modal-media img{border:0;border-radius:12px;box-shadow:var(--shadow-sm)}
.media-hint{padding:5px 10px;border:0;border-radius:999px;font-size:10px}
.modal-body{padding:42px 38px}
.modal-meta .mtag{border:0;border-radius:6px;background:#F1F4F8}
.lightbox img{border:0;border-radius:14px}
.toast{border:0;border-radius:12px;font-size:12px;box-shadow:0 14px 36px rgba(0,0,0,.2)}

/* 内容区共用同一背景，层级由白色内容面板承担 */
.capabilities,.projects,.problems,.register,.journey,.about,.contact{background-color:var(--paper)}

/* 现代视觉体系响应式 */
@media (max-width:1100px){
  .container{padding:0 28px}
  .section>.container::before{left:28px;right:28px}
  .nav-inner{gap:16px}
  .nav-links{gap:2px}
  .nav-links .nav-link{padding:9px 9px;font-size:14px;font-weight:600;white-space:nowrap}
  .nav-cta{margin-left:4px;padding:9px 13px;font-size:12px;white-space:nowrap}
  .hero-grid{gap:42px}
  .cap-row{padding:24px}
  .project-grid{gap:20px}
  .about-grid{gap:48px}
}
@media (max-width:920px){
  .hero{padding-top:calc(var(--nav-h) + 44px)}
  .hero-grid{grid-template-columns:1fr;gap:42px}
  .hero-copy{max-width:700px}
  .system-map{max-width:none}
  .section-head{grid-template-columns:140px 1fr;gap:28px}
  .archive-note{padding-left:0}
  .cap-list{grid-template-columns:1fr}
  .cap-row{padding:26px;border-right:0;border-bottom:1px solid var(--line)}
  .cap-row:last-child{border-bottom:0}
  .cap-tags{margin-top:0}
  .pf-media{border-left:0;border-top:1px solid #2A3A52}
  .journey-grid{padding:32px}
  .modal-panel{grid-template-columns:1fr;overflow-y:auto}
  .modal-media{height:270px;min-height:0;border-right:0;border-bottom:1px solid var(--line)}
  .modal-body{max-height:none;overflow:visible}
}
@media (max-width:900px){
  .nav-links{position:fixed;left:auto;top:0;translate:none;gap:0;margin-left:0;background:var(--card);border-left-color:var(--line);box-shadow:-24px 0 70px rgba(16,24,40,.14)}
  .nav-links .nav-link{padding:18px 44px 18px 0;border-radius:0;font-size:17px;white-space:normal}
  .nav-links .nav-link:hover,.nav-links .nav-link.active{background:transparent}
  .nav-more{top:17px;min-width:52px;padding:4px 9px;border:1px solid var(--line);border-radius:999px;background:#F7F9FC;text-align:center;line-height:1.5;transition:border-color .18s,background .18s,color .18s}
  .nav-item.open .nav-more{border-color:#C7D4EE;background:#EEF3FF;color:var(--signal)}
  .submenu{position:static;left:auto;top:auto;translate:none;min-width:0;padding-top:0;opacity:1;visibility:visible;pointer-events:auto;transform:none;display:none;transition:none}
  .nav-item.open>.submenu{display:block}
  .sm-panel{overflow:visible;border:0;border-radius:0;background:transparent;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}
  .sm-list{margin:2px 0 12px 3px;padding:0 0 0 13px;border-left:1px solid var(--line-dark)}
  .nav-links .sm-list a{padding:12px 0;border-radius:0;font-size:15px;box-shadow:inset 0 -1px 0 rgba(16,24,40,.06)}
  .sm-list a:hover,.sm-list a:focus-visible,.sm-list a.on{background:transparent;box-shadow:inset 0 -1px 0 rgba(16,24,40,.06)}
  .nav-links .sm-list li:last-child a{box-shadow:none}
}
@media (max-width:680px){
  :root{--nav-h:66px}
  .container{padding:0 20px}
  .section{padding:48px 0 60px}
  .section>.container::before{left:20px;right:20px;top:-20px}
  .hero{padding-top:calc(var(--nav-h) + 30px);padding-bottom:24px}
  .hero-canvas.ready{opacity:.7}
  .hero-register{font-size:9px}
  .hero-grid{padding:32px 0;gap:34px}
  .hero-kicker{font-size:11px}
  .hero h1{font-size:52px;white-space:nowrap}
  .hero h1 span{font-size:11px}
  .hero-statement{font-size:28px}
  .hero-desc{font-size:15px}
  .hero-actions{gap:18px}
  .btn,.text-link{font-size:13px}
  .system-map{border-radius:18px;box-shadow:0 20px 50px rgba(16,24,40,.16)}
  .map-head{padding:12px 14px;font-size:9px}
  .map-body{height:auto}
  .map-node{width:auto;padding:13px;border:0;border-radius:0;background:rgba(255,255,255,.045)}
  .map-node b{font-size:15px}
  .map-node small{font-size:10.5px}
  .map-core{width:100%;height:62px;border:0;border-radius:0;outline:0;box-shadow:none}
  .map-core small{color:#E2E9FF}
  .map-foot{padding:11px 14px;font-size:8px}
  .hero-stats{border-radius:16px}
  .hstat{padding:16px}
  .hstat:first-child,.hstat:nth-child(3){padding-left:16px}
  .hstat b{font-size:23px}
  .hero-footnote{font-size:8px}
  .section-head{grid-template-columns:1fr;gap:10px;margin-bottom:34px}
  .section-index{padding-top:0;font-size:12px}
  .section-head h2,.about-main h2,.journey-intro h2,.contact-heading h2{font-size:32px}
  .section-head p{font-size:14px}
  .capabilities{padding-top:48px;padding-bottom:54px}
  .cap-row{padding:24px}
  .archive-note{margin-top:-14px;font-size:10px}
  .filter-bar{gap:6px}
  .filter-btn{padding:8px 13px;font-size:11px}
  .project-grid{grid-template-columns:1fr}
  .project-card{padding-bottom:22px}
  .project-card:hover{transform:none}
  .pc-copy h3{font-size:22px}
  .pf-header{padding:13px 16px}
  .pf-copy{padding:28px 22px}
  .pf-media{padding:14px}
  .problem-card:hover{transform:none}
  .pr-body{padding:22px}
  .register-item{padding:19px 18px}
  .principles{padding:4px 18px}
  .skills-block,.cert-block{margin-top:56px}
  .skills-block{padding:22px 18px;border-radius:18px}
  .journey-grid{padding:24px 20px;border-radius:18px}
  .subsection-head h3{font-size:22px}
  .cert-card:hover{transform:none}
  .contact{padding-top:56px}
  .contact-inner{padding-bottom:56px}
  .email-link{padding:16px;font-size:15px}
  .modal-panel{border-radius:0}
  .modal-media{height:230px;padding:22px}
  .modal-body{padding:28px 20px}
  .toast{font-size:11px}
}
@media (max-width:360px){
  .hero h1{font-size:46px}
  .hero-statement{font-size:26px}
  .email-link{font-size:13px}
}
@media (min-width:901px) and (max-height:860px){
  .hero{padding:calc(var(--nav-h) + 22px) 0 22px}
  .hero-grid{gap:50px;padding:26px 0}
  .hero h1{margin-top:18px;font-size:76px}
  .hero h1 span{margin-top:10px}
  .hero-statement{margin-top:20px;font-size:28px;line-height:1.4}
  .hero-desc{margin-top:14px;font-size:15px;line-height:1.8}
  .hero-actions{margin-top:22px}
  .system-map{max-width:480px}
  .map-head,.map-foot{padding-top:10px;padding-bottom:10px}
  .map-body{height:280px}
  .map-node{width:148px;padding:10px 11px}
  .node-a,.node-b{top:28px}
  .node-c,.node-d{bottom:24px}
  .map-core{width:88px;height:88px}
  .hstat{padding-top:14px;padding-bottom:14px}
  .hstat b{font-size:23px}
  .hero-footnote{display:none}
}

/* ============================================================
   顶部导航：仿 DeepSeek 官网的悬浮胶囊
   透明起步，滚动后收窄为毛玻璃胶囊；移动端为全屏菜单
   ============================================================ */
.nav{position:fixed;inset:0 0 auto;z-index:1000;height:var(--nav-h);padding:8px 72px 0;background:transparent;border:0;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;transition:none}
.nav.scrolled{background:transparent;box-shadow:none}

/* 胶囊本体：顶部透明，滚动后由 ::before 铺出玻璃底 */
.nav-inner{position:relative;z-index:1001;display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;max-width:1140px;height:56px;margin:0 auto;padding:0 10px 0 12px;border:1px solid transparent;border-radius:100px;background:transparent;box-shadow:none;isolation:isolate;transition:max-width .55s cubic-bezier(.22,1,.36,1),padding .55s cubic-bezier(.22,1,.36,1)}
.nav-inner::before{content:"";position:absolute;inset:-1px;z-index:-1;border:1px solid rgba(16,24,40,.08);border-radius:inherit;background:rgba(255,255,255,.55);box-shadow:0 1px 0 rgba(255,255,255,.7) inset,0 10px 30px rgba(16,24,40,.07);opacity:0;visibility:hidden;-webkit-backdrop-filter:blur(16px) saturate(170%);backdrop-filter:blur(16px) saturate(170%);transition:opacity .4s ease,visibility 0s .4s;pointer-events:none}
.nav.scrolled .nav-inner{max-width:980px;padding:0 6px 0 14px}
.nav.scrolled .nav-inner::before{opacity:1;visibility:visible;transition:opacity .4s ease,visibility 0s}
@media (min-width:1560px){
  .nav{padding-left:80px;padding-right:80px}
  .nav-inner{max-width:1280px}
  .nav.scrolled .nav-inner{max-width:1180px}
}

/* 品牌：蓝色字标 + 双层文字，向 DeepSeek 字标靠拢 */
.nav .brand{gap:10px;padding:3px 6px 3px 4px;border-radius:100px}
.brand-mark{width:30px;height:30px;display:grid;place-items:center;padding:0;border:0;border-radius:9px;background:linear-gradient(145deg,#3E68E8,#2647B8);color:#fff;font-size:12px;font-weight:700;line-height:1;letter-spacing:.02em;box-shadow:inset 0 1px 0 rgba(255,255,255,.24),0 4px 12px rgba(49,92,219,.22)}
.brand-text{display:flex;flex-direction:column;font-size:15px;font-weight:600;line-height:1.2;letter-spacing:0;color:var(--ink)}
.brand-text em{margin-top:3px;font-size:9px;font-weight:400;line-height:1;letter-spacing:.06em;color:var(--muted)}

/* 一级菜单：胶囊内居中的小号标签 */
.nav-links{position:absolute;left:50%;top:36px;z-index:1002;translate:-50% -50%;display:flex;align-items:center;gap:2px;margin:0}
.nav-links>.nav-item{position:relative;display:flex;align-items:center;height:auto}
.nav-links .nav-link{position:relative;display:inline-flex;align-items:center;gap:0;padding:8px 13px;border-radius:100px;font-size:14px;font-weight:500;line-height:1.2;letter-spacing:.01em;color:rgba(16,24,40,.62);background:transparent;box-shadow:none;transition:color .18s ease,background-color .18s ease,box-shadow .18s ease}
.nav-links .nav-link::after{display:none}
.nav-links .nav-link:hover{color:var(--ink);background:rgba(16,24,40,.05)}
.nav-links .nav-link.active{color:var(--ink);font-weight:600;background:rgba(255,255,255,.92);box-shadow:0 0 0 1px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08)}
.nav-mobile-cta{display:none}

/* 右侧按钮：DeepSeek 式细描边胶囊 */
.nav-cta{position:relative;display:inline-flex;align-items:center;justify-content:center;min-height:34px;padding:0 15px;border:1px solid rgba(16,24,40,.12);border-radius:100px;background:rgba(255,255,255,.38);color:var(--ink-2);font-size:13px;font-weight:500;line-height:1;letter-spacing:.01em;white-space:nowrap;overflow:hidden;isolation:isolate;transition:background-color .2s ease,border-color .2s ease,color .2s ease}
.nav-cta::after{content:"";position:absolute;top:50%;left:50%;width:150%;aspect-ratio:1;border-radius:50%;background:rgba(16,24,40,.05);opacity:0;transform:translate(-50%,-50%) scale(.3);transition:transform .36s ease-out,opacity .1s ease;z-index:-1;pointer-events:none}
.nav-cta:hover{background:rgba(255,255,255,.8);border-color:rgba(9,45,78,.26);color:var(--ink)}
.nav-cta:hover::after{opacity:1;transform:translate(-50%,-50%) scale(1)}

/* 汉堡按钮 */
.burger{display:none;position:relative;z-index:1003;width:40px;height:40px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:100px}
.burger span{display:block;width:20px;height:1.5px;border-radius:2px;background:var(--ink);transition:transform .3s var(--ease),opacity .3s}
.burger.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* 二级菜单：DeepSeek 玻璃浮层 */
.submenu{position:absolute;top:100%;left:0;translate:0 0;z-index:1004;width:max-content;min-width:236px;max-width:360px;padding-top:18px;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-6px);transition:opacity .16s ease,transform .16s ease,visibility 0s .16s}
.nav-item:hover>.submenu,.nav-item:focus-within>.submenu,.nav-item.open>.submenu{opacity:1;visibility:visible;pointer-events:auto;transform:none;transition:opacity .16s ease,transform .16s ease,visibility 0s}
.nav-item:last-child>.submenu,.nav-links>.nav-item-end>.submenu{left:auto;right:0}
.sm-panel{overflow:hidden;padding:6px;border:1px solid rgba(16,24,40,.07);border-radius:16px;background:rgba(255,255,255,.92);box-shadow:0 0 1px rgba(0,0,0,.18),0 12px 32px rgba(0,0,0,.1);-webkit-backdrop-filter:blur(18px) saturate(170%);backdrop-filter:blur(18px) saturate(170%)}
.sm-list{max-height:min(62vh,520px);overflow:auto;overscroll-behavior:contain;padding:0}
.sm-list li+li{border-top:0}
.nav-links .sm-list a{display:block;padding:9px 11px;border-radius:10px;font-size:14px;line-height:1.45;color:var(--ink-2);background:transparent;box-shadow:none;transition:background-color .15s ease,color .15s ease}
.sm-list a:hover,.sm-list a:focus-visible{background:rgba(16,24,40,.045);color:var(--ink);box-shadow:none;outline:none}
.sm-list a.on{background:rgba(49,92,219,.08)}
.sm-list a.on .sm-title{color:var(--signal)}

/* 窄桌面：收紧胶囊左右留白与字号，保证一行不折行 */
@media (min-width:901px) and (max-width:1199px){
  .nav{padding-left:40px;padding-right:40px}
  .nav-inner{max-width:1140px}
  .nav.scrolled .nav-inner{max-width:980px}
  .nav-links{gap:0}
  .nav-links .nav-link{padding:8px 10px;font-size:13px}
  .brand-text em{display:none}
  .nav .brand{gap:8px}
}

/* 移动端：DeepSeek 式全屏菜单；滚动后胶囊同样铺毛玻璃底 */
@media (max-width:900px){
  .nav{padding:6px 12px 0}
  .nav-inner{max-width:none;height:calc(var(--nav-h) - 6px);padding:0 6px 0 8px;border-color:transparent}
  .nav.scrolled .nav-inner{max-width:none;padding:0 6px 0 8px}
  .nav .brand{padding:0}
  .nav-cta{display:none}
  .burger{display:flex;width:44px;height:44px}
  body.menu-open .nav-inner::before{opacity:0;visibility:hidden;transition:opacity .15s ease}
  .nav-links{position:fixed;inset:0;left:0;right:0;top:0;z-index:998;width:100%;height:100vh;height:100dvh;translate:none;display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;margin:0;padding:calc(var(--nav-h) + 10px) 24px 28px;background:var(--paper);border:0;box-shadow:none;opacity:0;visibility:hidden;pointer-events:none;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:none;transition:opacity .22s ease,visibility 0s .22s}
  .nav-links::-webkit-scrollbar{display:none}
  .nav-links.open{opacity:1;visibility:visible;pointer-events:auto;transition:opacity .22s ease,visibility 0s}
  .nav-links>.nav-item{display:block;position:relative;height:auto;border-bottom:1px solid rgba(16,24,40,.08)}
  .nav-links .nav-link{display:flex;align-items:center;width:100%;padding:20px 56px 20px 0;border-radius:0;font-size:18px;font-weight:500;color:var(--ink);background:transparent;box-shadow:none}
  .nav-links .nav-link:hover,.nav-links .nav-link.active{background:transparent;box-shadow:none;color:var(--ink)}
  .nav-more{display:flex;align-items:center;justify-content:center;position:absolute;right:0;top:10px;width:40px;height:40px;min-width:0;padding:0;border:1px solid rgba(16,24,40,.1);border-radius:50%;background:rgba(255,255,255,.55);color:var(--muted);text-align:center;transition:border-color .18s,background-color .18s,color .18s}
  .nav-more svg{width:15px;height:15px;transition:transform .25s var(--ease)}
  .nav-item.open .nav-more{border-color:rgba(49,92,219,.24);background:rgba(49,92,219,.07);color:var(--signal)}
  .nav-item.open .nav-more svg{transform:rotate(180deg)}
  .submenu{position:static;left:auto;top:auto;translate:none;width:auto;min-width:0;max-width:none;padding-top:0;opacity:1;visibility:visible;pointer-events:auto;transform:none;display:none;transition:none}
  .nav-item.open>.submenu{display:block}
  .sm-panel{overflow:visible;padding:0;border:0;border-radius:0;background:transparent;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}
  .sm-list{max-height:none;overflow:visible;margin:0 0 14px;padding:0 0 0 14px;border-left:1px solid var(--line-dark)}
  .nav-links .sm-list a{padding:13px 0;border-radius:0;font-size:15px;color:var(--muted);background:transparent;box-shadow:none}
  .nav-links .sm-list a:hover,.nav-links .sm-list a:focus-visible,.nav-links .sm-list a.on{background:transparent;box-shadow:none;color:var(--ink)}
  .nav-links .sm-list li+li{border-top:0}
  .nav-mobile-cta{display:block;margin-top:auto;padding:32px 0 0;border-bottom:0}
  .nav-links .nav-mobile-link{display:flex;align-items:center;justify-content:center;width:100%;min-height:52px;padding:14px 20px;border-radius:100px;background:var(--ink);color:#fff;font-size:15px;font-weight:500;letter-spacing:.01em;box-shadow:0 8px 20px rgba(16,24,40,.14);transition:background-color .2s ease}
  .nav-links .nav-mobile-link:hover{background:var(--signal);color:#fff}
  body.menu-open{overflow:hidden}
  body.menu-open::before{display:none}
  body.menu-open .scroll-progress{opacity:0}
}
@media (max-width:900px) and (prefers-reduced-motion:reduce){
  .nav-links{transition:none}
}
@media (max-width:680px){
  .nav{padding:6px 12px 0}
  .nav-inner{height:calc(var(--nav-h) - 6px)}
  .nav-links{padding-left:20px;padding-right:20px}
  .nav-links .nav-link{font-size:18px;padding:19px 56px 19px 0}
}

/* ============================================================
   统一浅色体系：工作半径拓扑、故障回顾主卡
   两处原为深色面板，现改为与全站一致的白色承载面
   ============================================================ */

/* 首屏「我的工作半径」：浅色拓扑板，蓝色只作为结构与状态强调 */
.system-map{overflow:hidden;border:1px solid var(--line);border-radius:24px;background:radial-gradient(120% 92% at 50% 44%,rgba(49,92,219,.055),transparent 60%),linear-gradient(180deg,#FFFFFF 0%,#F7F9FE 100%);box-shadow:0 26px 64px rgba(16,24,40,.1),0 1px 0 rgba(255,255,255,.9) inset;color:var(--ink)}
.map-head,.map-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;border-bottom:1px solid var(--line);font-size:10.5px;letter-spacing:.02em;color:var(--muted)}
.map-head>span:first-child{font-weight:500;color:var(--ink-2)}
.map-live{display:flex;align-items:center;gap:7px;color:var(--signal);white-space:nowrap}
.map-live i{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 4px rgba(49,92,219,.12);animation:blink 2s infinite}
.map-body{height:390px}
.map-grid path{fill:none;stroke:#E4EAF3;stroke-width:1}
.map-links path{fill:none;stroke:#9DB6E2;stroke-width:1.2;stroke-dasharray:5 6;animation:dash 18s linear infinite}
.map-links path.secondary{stroke:#D7E1F1;stroke-width:1;stroke-dasharray:2 8}
.map-points circle{fill:var(--signal);opacity:.55}
.map-node{width:174px;padding:14px;border:1px solid #E2E8F1;border-radius:14px;background:rgba(255,255,255,.94);box-shadow:0 8px 20px rgba(16,24,40,.055),0 1px 0 rgba(255,255,255,.9) inset;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.map-node b{color:var(--ink);font-size:16px}
.map-node small{color:var(--muted);font-size:11px}
.map-core{width:108px;height:108px;border:6px solid #FFFFFF;border-radius:50%;outline:1px solid rgba(49,92,219,.28);background:linear-gradient(145deg,#6B8CFA,#315CDB);box-shadow:0 0 0 10px rgba(49,92,219,.07),0 14px 32px rgba(49,92,219,.26);color:#fff}
.map-core span{color:#fff}
.map-core small{color:rgba(255,255,255,.82);font-size:8px;letter-spacing:.04em}
.map-foot{padding:13px 20px;border-top:1px solid var(--line);border-bottom:0;font-size:9.5px;color:var(--faint)}

/* 故障回顾主卡：与项目案例同一套白色卡片语言，靠尺寸与层级突出 */
.problem-featured{overflow:hidden;margin-bottom:44px;border:1px solid var(--line);border-radius:24px;background:var(--card);color:var(--ink);box-shadow:0 20px 52px rgba(16,24,40,.08),0 1px 0 rgba(255,255,255,.9) inset}
.pf-header{padding:15px 24px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#F7F9FD,#FFFFFF);font-size:11px;letter-spacing:.02em;color:var(--muted)}
.pf-header .log-id{display:inline-flex;align-items:center;gap:7px;color:var(--signal);font-weight:600;letter-spacing:.04em}
.pf-header .log-id::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 3px rgba(49,92,219,.13)}
.pf-header .pf-date{margin-left:auto;color:var(--faint)}
.pf-copy h3{color:var(--ink)}
.pf-lead{margin-top:15px;font-size:15px;line-height:1.95;color:var(--muted)}
.pf-tags span{border:0;border-radius:6px;padding:4px 8px;background:#F1F4F8;color:var(--ink-2);font-size:11px}
.pf-steps li{padding-top:12px;border-top:1px solid var(--line);font-size:13.5px;line-height:1.85;color:var(--muted)}
.pf-steps li::before{margin-bottom:6px;font-size:10px;letter-spacing:.04em;color:var(--signal)}
.pf-media{min-height:460px;padding:28px;border-left:1px solid var(--line);background:linear-gradient(180deg,#F7F9FD,#EDF2F9)}
.pf-media img{border:1px solid var(--line);border-radius:14px;box-shadow:0 12px 30px rgba(16,24,40,.08)}
.pf-resolution{border-top:1px solid var(--line);background:#FBFCFE}
.pf-resolution>div{padding:24px 30px}
.pf-resolution>div+div{border-left:1px solid var(--line)}
.pf-resolution>div:nth-child(2){background:linear-gradient(180deg,rgba(49,92,219,.025),rgba(49,92,219,.06))}
.pf-resolution b{margin-bottom:8px;font-size:11px;letter-spacing:.08em;color:var(--signal)}
.pf-resolution p{font-size:14px;line-height:1.9;color:var(--muted)}

@media (max-width:920px){
  .pf-media{min-height:0;border-left:0;border-top:1px solid var(--line)}
}

/* ============================================================
   排版细节与触控优化
   ============================================================ */
/* 联系区：右侧正文与左侧栏目标签首行对齐；页脚贴住页面底部 */
.contact-body{padding-top:6px}
.contact{padding-bottom:0}

/* 平板与手机：个人经历介绍与时间线之间收紧留白 */
@media (max-width:920px){
  .journey-grid{gap:36px}
}

/* 手机端：放大可点区域，避免小按钮点不中 */
@media (max-width:680px){
  .filter-btn{min-height:40px;padding:10px 14px;font-size:11.5px}
  .pc-open{min-width:48px;min-height:34px;display:inline-flex;align-items:center;justify-content:center;padding:6px 10px}
  .text-link{min-height:44px;display:inline-flex;align-items:center;padding:10px 1px}
  .copy-button{min-height:44px;padding:11px 16px}
  .pr-details summary{padding:13px 24px 13px 0}
  .footer-inner{font-size:11px}
  .footer-inner a{display:inline-flex;align-items:center;min-height:36px;padding:0 2px}
  .archive-note{font-size:11px;line-height:1.7;gap:4px 16px}
  .filter-bar{-webkit-overflow-scrolling:touch}
}
@media (max-width:680px){
  .system-map{border-radius:18px;box-shadow:0 18px 44px rgba(16,24,40,.09)}
  .map-head,.map-foot{padding:12px 14px;font-size:9px}
  .map-body{height:auto;background:var(--line)}
  .map-node{position:static;width:auto;min-height:100px;padding:13px;border:0;border-radius:0;background:var(--card);box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}
  .map-core{position:static;grid-column:1/-1;order:-1;width:100%;height:64px;display:flex;flex-direction:row;align-items:center;justify-content:center;gap:14px;transform:none;border:0;border-radius:0;outline:0;box-shadow:none;background:linear-gradient(135deg,#5C7EF5,#315CDB)}
  .map-core span{font-size:24px}
  .map-core small{color:rgba(255,255,255,.85)}
  .map-foot{padding:11px 14px;font-size:8px}
  .pf-header{padding:13px 16px}
  .pf-copy{padding:28px 22px}
  .pf-media{padding:14px}
  .pf-resolution>div{padding:20px}
  .pf-resolution>div+div{border-left:0;border-top:1px solid var(--line)}
}

/* ============================================================
   窄屏与矮屏自适应
   1) 681–701px：技能标签的最小宽度曾把内容顶出窗口
   2) 桌面矮窗口（笔记本 150% 缩放常见 1500×730 左右）：
      首屏内容高于窗口，底部统计条会被裁掉，这里按窗口高度分级压缩
   ============================================================ */
.skill-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.skill-group,.skill-chips{min-width:0}
.skill-chips span{max-width:100%}

/* 矮屏第一级：让首屏完整落在窗口内 */
@media (min-width:921px) and (max-height:880px){
  .hero{padding:calc(var(--nav-h) + 16px) 0 18px}
  .hero-register{font-size:10.5px}
  .hero-grid{padding:22px 0 20px;gap:48px}
  .hero-kicker{padding:6px 10px;font-size:11px}
  .hero h1{margin-top:14px;font-size:66px}
  .hero h1 span{margin-top:8px;font-size:12px}
  .hero-statement{margin-top:16px;font-size:25px;line-height:1.4}
  .hero-desc{margin-top:12px;font-size:14.5px;line-height:1.8}
  .hero-actions{margin-top:18px}
  .btn{min-height:44px;padding:10px 18px;font-size:13.5px}
  .text-link{font-size:13.5px}
  .system-map{max-width:460px}
  .map-head,.map-foot{padding:12px 18px;font-size:9.5px}
  .map-body{height:310px}
  .map-node{width:160px;padding:12px}
  .map-node b{font-size:15px}
  .map-node small{font-size:10.5px}
  .node-a,.node-b{top:36px}
  .node-c,.node-d{bottom:30px}
  .map-core{width:96px;height:96px}
  .map-core span{font-size:25px}
  .map-foot{padding:10px 18px;font-size:8.5px}
  .hero-stats{margin-top:2px}
  .hstat{padding:13px 22px}
  .hstat b{font-size:24px}
  .hstat span{margin-top:4px;font-size:11px}
  .hero-footnote{display:none}
}

/* 矮屏第二级：更矮的窗口再压缩一轮 */
@media (min-width:921px) and (max-height:700px){
  .hero{padding:calc(var(--nav-h) + 10px) 0 14px}
  .hero-register{display:none}
  .hero-grid{padding:16px 0;gap:40px}
  .hero-kicker{padding:5px 9px;font-size:10.5px}
  .hero h1{margin-top:12px;font-size:56px}
  .hero h1 span{font-size:11px}
  .hero-statement{margin-top:12px;font-size:21px}
  .hero-desc{margin-top:10px;font-size:13.5px;line-height:1.75}
  .hero-actions{margin-top:14px}
  .system-map{max-width:400px}
  .map-head,.map-foot{padding:9px 14px;font-size:9px}
  .map-body{height:250px}
  .map-node{width:140px;padding:10px}
  .map-node b{font-size:13.5px}
  .map-node small{font-size:9.5px}
  .node-a,.node-b{top:24px}
  .node-c,.node-d{bottom:20px}
  .map-core{width:82px;height:82px}
  .map-core span{font-size:21px}
  .map-core small{font-size:7px}
  .map-foot{padding:8px 14px;font-size:8px}
  .hstat{padding:10px 18px}
  .hstat b{font-size:21px}
  .hstat span{font-size:10px}
}

/* 矮屏第三级：极矮窗口（约 560px 以下）再压缩一轮 */
@media (min-width:921px) and (max-height:560px){
  .hero{padding:calc(var(--nav-h) + 6px) 0 10px}
  .hero-grid{padding:12px 0;gap:32px}
  .hero-kicker{padding:4px 8px;font-size:10px}
  .hero h1{margin-top:10px;font-size:50px}
  .hero h1 span{margin-top:6px;font-size:10px}
  .hero-statement{margin-top:10px;font-size:19px;line-height:1.35}
  .hero-desc{margin-top:8px;font-size:13px;line-height:1.7}
  .hero-actions{margin-top:12px}
  .btn{min-height:40px;padding:8px 16px;font-size:13px}
  .text-link{font-size:13px}
  .system-map{max-width:360px}
  .map-head,.map-foot{padding:7px 12px;font-size:8.5px}
  .map-body{height:210px}
  .map-node{width:128px;padding:8px}
  .map-node b{font-size:12.5px}
  .map-node small{font-size:9px}
  .node-a,.node-b{top:16px}
  .node-c,.node-d{bottom:14px}
  .map-core{width:72px;height:72px}
  .map-core span{font-size:18px}
  .map-core small{font-size:6.5px}
  .map-foot{padding:6px 12px;font-size:8px}
  .hstat{padding:8px 16px}
  .hstat b{font-size:19px}
  .hstat span{font-size:9.5px}
}
/* ============================================================
   图片查看器、故障复盘详情、工作笔记详情
   1) 全站可放大图片统一进入同一查看器，支持滚轮/双指缩放与拖动
   2) 故障回顾配图可点开放大，三张卡片可点开完整复盘
   3) 工作笔记每条记录可点开详情
   ============================================================ */

/* ---------- 大图查看器 ---------- */
.lightbox{padding:0;overflow:hidden}
.lightbox-backdrop{background:rgba(6,12,24,.86);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.lightbox-stage{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;width:100%;height:100%;padding:72px 40px 104px;overflow:hidden;touch-action:none;cursor:zoom-in}
.lightbox-stage.is-zoomed{cursor:grab}
.lightbox-stage.is-dragging{cursor:grabbing}
.lightbox .lightbox-stage img{position:relative;z-index:1;display:block;width:auto;height:auto;max-width:calc(100vw - 80px);max-height:calc(100vh - 176px);max-height:calc(100dvh - 176px);background:#fff;border:0;border-radius:14px;box-shadow:0 30px 90px rgba(0,0,0,.45);user-select:none;-webkit-user-select:none;touch-action:none;transform-origin:center center;will-change:transform;cursor:inherit}
.lightbox-close{right:22px;top:20px;z-index:4;background:rgba(15,23,42,.9);box-shadow:0 6px 20px rgba(0,0,0,.3)}
.lightbox-close:hover{background:var(--signal)}
.lightbox-bar{position:absolute;left:50%;bottom:24px;z-index:4;display:flex;align-items:center;gap:4px;padding:6px 8px;border:1px solid rgba(255,255,255,.12);border-radius:999px;background:rgba(12,20,34,.82);box-shadow:0 14px 40px rgba(0,0,0,.35);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);transform:translateX(-50%)}
.lightbox-btn,.lightbox-zoom{display:inline-flex;align-items:center;justify-content:center;height:34px;border:0;border-radius:999px;background:transparent;color:#fff;font-family:var(--mono);cursor:pointer;transition:background-color .18s ease,color .18s ease}
.lightbox-btn{width:34px;font-size:18px;line-height:1}
.lightbox-btn:hover{background:rgba(255,255,255,.12)}
.lightbox-zoom{min-width:64px;padding:0 10px;font-size:11px;letter-spacing:.03em;color:rgba(255,255,255,.82)}
.lightbox-zoom:hover{background:rgba(255,255,255,.1);color:#fff}
.lightbox-hint{padding:0 10px 0 6px;font-family:var(--mono);font-size:10px;color:rgba(255,255,255,.5);white-space:nowrap}

/* 可放大图片右下角的提示胶囊 */
.zoom-chip{position:absolute;right:12px;bottom:12px;z-index:2;display:inline-flex;align-items:center;gap:5px;padding:5px 9px;border-radius:999px;background:rgba(15,23,42,.72);color:#fff;font-family:var(--mono);font-size:10px;letter-spacing:.02em;line-height:1.4;pointer-events:none}
.pf-zoom,.pr-zoom{position:relative;cursor:zoom-in}
.pr-zoom .zoom-chip{right:10px;bottom:10px}

/* 故障回顾主卡配图：图片区域整体可点击 */
.pf-media.pf-zoom{appearance:none;-webkit-appearance:none;border-top:0;border-right:0;border-bottom:0;font:inherit;text-align:left}
.pf-media.pf-zoom img{width:100%}

/* 故障回顾三张卡：图片可放大，其余区域看完整复盘 */
.pr-media.pr-zoom{appearance:none;-webkit-appearance:none;display:block;width:100%;padding:0;border-top:0;border-left:0;border-right:0;border-bottom:1px solid var(--line);background:#fff;cursor:zoom-in}
.pr-media.pr-zoom img{display:block;width:100%;height:100%;object-fit:cover}
.problem-card{cursor:pointer}
.pr-foot{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.pr-foot .pr-result{flex:1 1 auto;min-width:0;margin-top:0}
.pr-open{display:inline-flex;align-items:center;gap:6px;flex:0 0 auto;padding:7px 11px;border:1px solid var(--line);border-radius:999px;background:#F7F9FC;color:var(--signal);font-family:var(--mono);font-size:10.5px;line-height:1.4;white-space:nowrap;cursor:pointer;transition:background-color .18s,border-color .18s,color .18s,transform .18s}
.pr-open svg{width:13px;height:13px;transition:transform .18s ease}
.pr-open:hover{border-color:#C9D7F3;background:#EEF3FF}
.pr-open:hover svg{transform:translateX(2px)}

/* 工作笔记：整行可点开详情 */
.register-item{cursor:pointer;transition:background-color .18s ease}
.register-item:hover{background:#F7F9FD}
.register-item:focus-visible{outline:2px solid rgba(49,92,219,.55);outline-offset:-2px}
.register-item{grid-template-columns:82px 108px minmax(0,1fr) 225px 92px 20px}
.rg-open{justify-self:end;display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;color:var(--faint);transition:color .18s ease,transform .18s ease}
.rg-open svg{width:14px;height:14px}
.register-item:hover .rg-open{color:var(--signal);transform:translateX(2px)}

/* ---------- 工作笔记详情弹层 ---------- */
.note-modal{padding:24px}
.note-panel{position:relative;z-index:1;display:flex;flex-direction:column;width:min(900px,100%);max-height:92vh;max-height:92dvh;overflow:hidden;border:0;border-radius:24px;background:var(--card);box-shadow:0 30px 100px rgba(0,0,0,.4);animation:modalIn .3s var(--ease)}
.note-head{display:flex;align-items:center;flex-wrap:wrap;gap:8px 14px;padding:16px 30px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#F7F9FD,#FFFFFF);font-family:var(--mono);font-size:11px;color:var(--muted)}
.note-kicker{display:inline-flex;align-items:center;gap:7px;color:var(--signal);font-weight:600;letter-spacing:.04em}
.note-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 3px rgba(49,92,219,.13)}
.note-status{margin-left:auto;display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:10.5px;letter-spacing:.02em}
.note-status.done{background:#EAF8F0;color:#15744A}
.note-status.run{background:#FFF4DF;color:#946115}
.note-status.plan{background:#EEF2F7;color:#5C6773}
.note-body{overflow-y:auto;padding:36px 40px 42px;overscroll-behavior:contain}
.note-body h3{padding-right:44px;font-size:30px;line-height:1.38;font-weight:700;letter-spacing:-.025em}
.note-lead{margin-top:14px;padding-bottom:22px;border-bottom:1px solid var(--line);font-size:15px;line-height:1.95;color:var(--muted)}
.note-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;margin-top:22px;border:1px solid var(--line);border-radius:14px;background:var(--line);overflow:hidden}
.note-fact{padding:14px 16px;background:var(--card)}
.note-fact span{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.05em;color:var(--faint)}
.note-fact b{display:block;margin-top:6px;font-size:14px;font-weight:600;line-height:1.55;color:var(--ink)}
.note-sections{display:grid;gap:26px;margin-top:28px}
.note-sec h4{margin-bottom:10px;font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--signal)}
.note-actions{display:grid;gap:9px;counter-reset:note-step}
.note-actions li{position:relative;padding-left:30px;font-size:14px;line-height:1.85;color:var(--ink-2);counter-increment:note-step}
.note-actions li::before{content:counter(note-step,decimal-leading-zero);position:absolute;left:0;top:2px;font-family:var(--mono);font-size:10px;line-height:1.9;color:var(--signal)}
.note-result{padding:2px 0 2px 16px;border-left:2px solid var(--signal);font-size:14px;line-height:1.9;color:var(--ink-2)}
.note-note{padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:#F7F9FD;font-size:13px;line-height:1.85;color:var(--muted)}

/* 弹层提示文字允许换行，避免窄屏溢出 */
.media-hint{max-width:calc(100% - 24px);white-space:normal;text-align:center;line-height:1.5}

/* ---------- 响应式 ---------- */
@media (max-width:920px) and (min-width:681px){
  .problem-card:last-child .pr-media.pr-zoom{aspect-ratio:auto;border-bottom:0;border-right:1px solid var(--line)}
  .register-item{grid-template-columns:76px minmax(0,1fr) auto 20px;grid-template-areas:"year type status open" "main main main main" "scale scale scale scale";gap:7px 14px;padding:20px 24px;align-items:start}
  .rg-open{grid-area:open;align-self:start;margin-top:1px}
}
@media (max-width:680px){
  .pr-foot{flex-direction:column;align-items:flex-start;gap:10px}
  .pr-open{min-height:40px;padding:9px 14px;font-size:11px}
  .register-item{grid-template-columns:76px minmax(0,1fr) auto 20px;grid-template-areas:"year type status open" "main main main main" "scale scale scale scale";gap:7px 14px;padding:19px 18px;align-items:start}
  .rg-open{grid-area:open;align-self:start;margin-top:1px}
  .lightbox-stage{padding:64px 12px 96px}
  .lightbox .lightbox-stage img{max-width:calc(100vw - 24px);max-height:calc(100vh - 160px);max-height:calc(100dvh - 160px);border-radius:10px}
  .lightbox-bar{bottom:16px;padding:5px 6px}
  .lightbox-hint{display:none}
  .lightbox-close{right:12px;top:12px}
  .note-modal{padding:0}
  .note-panel{width:100%;height:100vh;height:100dvh;max-height:100vh;max-height:100dvh;border-radius:0;box-shadow:none}
  .note-head{padding:14px 18px;gap:6px 12px}
  .note-status{margin-left:0}
  .note-body{padding:26px 20px 34px}
  .note-body h3{padding-right:40px;font-size:24px}
  .note-lead{font-size:14px}
  .note-facts{grid-template-columns:1fr;margin-top:18px}
  .note-fact{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:12px 14px}
  .note-fact b{margin-top:0;text-align:right}
  .note-actions li{font-size:13.5px}
  .note-result{font-size:13.5px}
}
@media (prefers-reduced-motion:reduce){
  .lightbox-stage img{transition:none!important}
}

/* 细节修正：详情弹层右上角留出关闭按钮位置；平板宽度下保留主卡配图分隔线 */
.note-head{padding-right:76px}
@media (max-width:920px){
  .pf-media.pf-zoom{border-top:1px solid var(--line);border-left:0}
}
@media (max-width:680px){
  .note-head{padding-right:64px}
}

/* 项目 / 故障详情图片的键盘焦点样式 */
.modal-media img:focus-visible{outline:2px solid var(--signal);outline-offset:3px}

/* ============================================================
   品牌焕新：猫头像 logo + 两行诗句字标
   首屏粒子背景与第二屏之间增加渐变收尾，去掉硬切边
   ============================================================ */

/* 导航品牌：头像 + 竖排两行诗句 + 站点名 */
.nav .brand{gap:9px;padding:2px 4px 2px 2px;align-items:center}
.brand-mark{width:34px;height:34px;flex:0 0 auto;display:block;padding:0;overflow:hidden;border:0;border-radius:50%;background:none;box-shadow:0 0 0 1px rgba(16,24,40,.08),0 4px 12px rgba(16,24,40,.16)}
.brand-mark img{width:100%;height:100%;display:block;object-fit:cover;transform:scale(1.02)}
.brand-text{display:flex;flex-direction:column;gap:0;font-size:16px;font-weight:600;line-height:1.32;letter-spacing:.01em;color:var(--ink)}
.brand-poem{display:block;font-size:16px;font-weight:600;line-height:1.32;letter-spacing:.01em;color:var(--ink);white-space:nowrap}
.brand-poem span{display:block}
.brand-poem span+span{padding-left:.9em}

/* 首屏底部：粒子向纸色渐隐，再进入第二屏 */
.hero::after{content:"";position:absolute;left:0;right:0;bottom:-1px;z-index:0;height:190px;pointer-events:none;background:linear-gradient(180deg,rgba(244,246,249,0) 0%,rgba(244,246,249,.34) 46%,rgba(244,246,249,.84) 80%,#F4F6F9 100%)}

@media (min-width:901px) and (max-width:1199px){
  .brand-poem{font-size:14px}
  .brand-mark{width:32px;height:32px}
}
/* 汉堡模式（≤900px）：诗句放大，尽量占满顶部胶囊的高度 */
@media (max-width:900px){
  .brand{gap:8px}
  .brand-poem{font-size:clamp(20px, 2.5vw, 23px);line-height:1.2;letter-spacing:-.01em;white-space:normal}
  .brand-mark{width:34px;height:34px}
}
@media (max-width:680px){
  .nav .brand{gap:8px}
  .brand-mark{width:34px;height:34px}
  .brand-poem{font-size:clamp(17px, 5.4vw, 21px);line-height:1.22;letter-spacing:-.01em}
  .hero::after{height:150px}
}
@media (max-width:380px){
  .brand-poem{font-size:17px}
  .brand-mark{width:30px;height:30px}
}