/* 公共样式：个人信息 / 相关展示 / 资源共享 三页共用 */

/* ============ 设计令牌 ============ */
:root{
  --paper:#F4F6F9;
  --paper-deep:#E8EDF3;
  --card:#FFFFFF;
  --ink:#10233A;
  --ink-soft:#33475E;
  --muted:#64748B;
  --navy-900:#0B2545;
  --navy-700:#123C63;
  --navy-500:#1E6FB8;
  --cyan:#2AA1A8;
  --accent:#FF7A2F;
  --accent-deep:#E85D16;
  --accent-soft:#FFF2E8;
  --line:rgba(16,35,58,.12);
  --line-soft:rgba(16,35,58,.07);
  --grid:rgba(16,35,58,.045);
  --radius:18px;
  --shadow:0 18px 48px -20px rgba(11,37,69,.22);
  --shadow-sm:0 8px 24px -12px rgba(11,37,69,.16);
  --font-display:"Space Grotesk","Noto Sans SC",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
  --font-body:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --nav-h:74px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:
    linear-gradient(180deg,#E8F0F8 0%,#F4F7FB 34%,#EEF4F9 68%,#EAF1F8 100%);
  line-height:1.82;
  font-size:16.5px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:var(--navy-900);color:#fff}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}

/* ============ 科技蓝图背景 ============ */
.bg-grid{
  position:fixed;inset:0;z-index:-3;pointer-events:none;
  background-image:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px),
    linear-gradient(rgba(16,35,58,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(16,35,58,.025) 1px,transparent 1px);
  background-size:44px 44px,44px 44px,11px 11px,11px 11px;
}
.bg-dots{
  position:fixed;inset:0;z-index:-3;pointer-events:none;
  background-image:radial-gradient(rgba(30,111,184,.14) 1.1px,transparent 1.3px);
  background-size:26px 26px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 62%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 62%);
}
.bg-glow{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(980px 540px at 82% -6%,rgba(30,111,184,.16),transparent 62%),
    radial-gradient(820px 520px at -10% 26%,rgba(42,161,168,.13),transparent 60%),
    radial-gradient(860px 600px at 104% 68%,rgba(255,122,47,.09),transparent 62%),
    radial-gradient(700px 460px at 24% 108%,rgba(19,60,99,.10),transparent 64%);
}
.bg-orb{position:fixed;z-index:-2;pointer-events:none;border-radius:50%;filter:blur(10px)}
.bg-orb.o1{
  width:520px;height:520px;left:-180px;top:22%;background:radial-gradient(circle,rgba(42,161,168,.13),transparent 68%);
  animation:drift 16s ease-in-out infinite;
}
.bg-orb.o2{
  width:640px;height:640px;right:-240px;top:56%;background:radial-gradient(circle,rgba(30,111,184,.12),transparent 68%);
  animation:drift 20s ease-in-out infinite reverse;
}
@keyframes drift{0%,100%{transform:translate(0,0)}50%{transform:translate(-34px,26px)}}
.bg-scan{
  position:fixed;left:0;right:0;top:-30%;height:46vh;z-index:-2;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(30,111,184,.045),rgba(42,161,168,.055),transparent);
  animation:scan 13s linear infinite;
}
@keyframes scan{0%{transform:translateY(0)}100%{transform:translateY(320vh)}}

/* ============ 版式工具 ============ */
.wrap{max-width:1260px;margin:0 auto;padding:0 30px}
.eyebrow{
  font-family:var(--font-mono);
  font-size:13px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--navy-500);display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--accent)}
.sec-head{display:flex;align-items:flex-end;gap:26px;margin-bottom:58px;flex-wrap:wrap}
.sec-num{
  font-family:var(--font-mono);font-size:14px;color:var(--accent-deep);
  border:1px solid var(--line);padding:7px 14px;border-radius:10px;background:var(--card);
  white-space:nowrap;
}
.sec-title{font-size:clamp(34px,4.6vw,50px);font-weight:900;letter-spacing:.02em;line-height:1.2}
.sec-title-en{font-family:var(--font-display);font-size:14px;letter-spacing:.3em;text-transform:uppercase;color:var(--muted)}
.sec-head .rule{flex:1;height:1px;background:var(--line-soft);min-width:60px}

/* ============ 导航 ============ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);
  display:flex;align-items:center;
  background:rgba(244,246,249,.86);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.nav-inner{width:100%;max-width:1260px;margin:0 auto;padding:0 30px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--font-display);font-weight:700;letter-spacing:.06em;font-size:16px}
.brand-mark{width:36px;height:36px;border:2px solid var(--navy-900);border-radius:8px;position:relative;display:grid;place-items:center}
.brand-mark::before{content:"";position:absolute;inset:6px;border:1.5px solid var(--accent);border-radius:4px}
.brand-mark span{font-family:var(--font-mono);font-size:14px;font-weight:600;color:var(--navy-900)}
.brand small{display:block;font-family:var(--font-mono);font-size:9.5px;letter-spacing:.3em;color:var(--muted);font-weight:400}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-links a{font-size:16px;color:var(--ink-soft);position:relative;padding:6px 0;transition:color .2s;white-space:nowrap;flex-shrink:0}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);transition:width .25s}
.nav-links a:hover,.nav-links a.active{color:var(--navy-900)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{
  font-family:var(--font-mono);font-size:13.5px;letter-spacing:.08em;
  border:1.5px solid var(--navy-900);color:var(--navy-900);
  padding:10px 20px;border-radius:99px;transition:all .22s;white-space:nowrap;font-weight:600;
}
.nav-cta:hover{background:var(--navy-900);color:#fff}
.nav-burger{display:none;flex-direction:column;gap:5px;padding:8px}
.nav-burger span{width:24px;height:2px;background:var(--navy-900);transition:.25s}
.nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ Hero ============ */
.hero{
  min-height:100svh;display:flex;align-items:center;
  padding:calc(var(--nav-h) + 34px) 0 76px;position:relative;
}
.hero-inner{display:grid;grid-template-columns:1.18fr .82fr;gap:64px;align-items:center;width:100%}
.hero-copy{position:relative;z-index:2}
.hero-hello{margin-bottom:30px}
.hero-name{
  font-size:clamp(60px,9vw,116px);font-weight:900;line-height:1.04;letter-spacing:.01em;
  margin:16px 0 8px;display:flex;align-items:baseline;gap:18px;flex-wrap:wrap;
}
.hero-name .cn{position:relative}
.hero-name .cn::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:12px;
  background:linear-gradient(90deg,rgba(255,122,47,.32),rgba(255,122,47,.06));
  z-index:-1;
}
.hero-name .en{
  font-family:var(--font-display);font-size:clamp(16px,2.2vw,24px);font-weight:500;
  letter-spacing:.24em;text-transform:uppercase;color:var(--navy-500);
}
.hero-role{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:15.5px;letter-spacing:.12em;color:var(--navy-700);
  border:1px solid var(--line);background:var(--card);border-radius:99px;padding:10px 22px;margin-top:22px;
}
.hero-role::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 2.2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(255,122,47,.45)}50%{box-shadow:0 0 0 7px rgba(255,122,47,0)}}
.hero-desc{margin-top:28px;font-size:19px;color:var(--ink-soft);max-width:620px}
.hero-desc strong{color:var(--navy-900)}
.hero-tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.tag{
  font-family:var(--font-mono);font-size:14px;letter-spacing:.04em;
  border:1px solid var(--line);background:var(--card);border-radius:8px;
  padding:9px 17px;color:var(--ink-soft);transition:.2s;
}
.tag:hover{border-color:var(--navy-500);color:var(--navy-900);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.tag.hot{border-color:rgba(255,122,47,.5);color:var(--accent-deep);background:var(--accent-soft)}
.hero-ctas{display:flex;gap:18px;margin-top:46px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-size:16.5px;font-weight:600;padding:16px 32px;border-radius:12px;
  transition:all .22s;position:relative;overflow:hidden;
}
.btn-primary{background:var(--navy-900);color:#fff}
.btn-primary:hover{background:var(--navy-700);transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(11,37,69,.5)}
.btn-primary svg{transition:transform .25s}
.btn-primary:hover svg{transform:translateY(3px)}
.btn-ghost{border:1.5px solid var(--navy-900);color:var(--navy-900);background:transparent}
.btn-ghost:hover{background:var(--navy-900);color:#fff;transform:translateY(-2px)}
.btn .mono{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;opacity:.75}

/* hero 右侧：肖像卡 */
.hero-visual{position:relative;display:flex;justify-content:center}
.struct-svg{position:absolute;inset:auto;width:440px;height:340px;opacity:.9;top:50%;left:50%;transform:translate(-50%,-46%);z-index:0}
.portrait-card{
  position:relative;z-index:1;width:min(400px,84vw);
  background:var(--card);border-radius:var(--radius);border:1px solid var(--line);
  box-shadow:var(--shadow);padding:14px;transform:rotate(1.2deg);
  transition:transform .4s;
}
.portrait-card:hover{transform:rotate(0deg) translateY(-6px)}
.portrait-frame{
  position:relative;border-radius:12px;overflow:hidden;background:var(--paper-deep);
}
.portrait-frame img{width:100%;height:auto;object-fit:cover}
.portrait-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(16,35,58,.08);
  border-radius:12px;
}
.corner{position:absolute;width:22px;height:22px;border:3px solid var(--accent);z-index:3}
.corner.tl{top:14px;left:14px;border-right:none;border-bottom:none;border-top-left-radius:10px}
.corner.br{bottom:14px;right:14px;border-left:none;border-top:none;border-bottom-right-radius:10px}
.float-badge{
  position:absolute;z-index:4;background:var(--navy-900);color:#fff;border-radius:12px;
  padding:12px 16px;box-shadow:var(--shadow);font-size:13px;line-height:1.55;
  animation:float 5s ease-in-out infinite;
}
.float-badge .mono{font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;color:rgba(255,255,255,.65);display:block;margin-bottom:2px}
.float-badge.now{top:-18px;left:-24px;animation-delay:.6s}
.float-badge.now .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-right:7px;vertical-align:1px}
.float-badge.school{bottom:-18px;right:-24px;animation-delay:1.4s;background:var(--card);color:var(--navy-900);border:1px solid var(--line)}
.float-badge.school .mono{color:var(--muted)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

.scroll-hint{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.28em;color:var(--muted);
}
.mouse{width:24px;height:38px;border:2px solid var(--muted);border-radius:14px;position:relative}
.mouse::after{content:"";position:absolute;top:6px;left:50%;width:3px;height:7px;margin-left:-1.5px;border-radius:3px;background:var(--accent);animation:wheel 1.8s infinite}
@keyframes wheel{0%{opacity:1;transform:translateY(0)}70%{opacity:0;transform:translateY(12px)}100%{opacity:0}}

/* ============ 通用区块 ============ */
.section{padding:118px 0;position:relative}
.section.alt{background:rgba(255,255,255,.62)}
.card{background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius);box-shadow:var(--shadow-sm)}

/* ============ 关于 ============ */
.about-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:30px}
.about-main{padding:44px;font-size:17.5px;color:var(--ink-soft)}
.about-main p+p{margin-top:20px}
.about-main strong{color:var(--navy-900)}
.about-main .hl{color:var(--navy-700);font-weight:700}
.about-side{display:flex;flex-direction:column;gap:30px}
.info-card{padding:36px}
.info-card h3{
  font-size:17px;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:24px;color:var(--navy-900);
}
.info-card h3 .mono{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--muted);margin-left:auto;text-transform:uppercase}
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 22px}
.info-item .k{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--muted);text-transform:uppercase;display:block;margin-bottom:4px}
.info-item .v{font-size:16px;font-weight:600;color:var(--ink)}
.thesis-card{padding:36px;background:var(--navy-900);color:#fff;border-radius:var(--radius);position:relative;overflow:hidden}
.thesis-card::before{
  content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.35),transparent 70%);
}
.thesis-card .mono{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.22em;color:rgba(255,255,255,.6);text-transform:uppercase;display:block;margin-bottom:12px}
.thesis-card h3{font-size:19px;font-weight:700;margin-bottom:14px;position:relative}
.thesis-card p{font-size:15.5px;color:rgba(255,255,255,.82);position:relative}
.thesis-card .n{font-family:var(--font-mono);font-size:13px;color:var(--accent);position:relative;display:block;margin-top:16px}

/* ============ 教育时间线 ============ */
.edu-list{position:relative;padding-left:38px}
.edu-list::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--navy-500),var(--accent))}
.edu-item{position:relative;padding:0 0 42px 30px}
.edu-item:last-child{padding-bottom:0}
.edu-item::before{
  content:"";position:absolute;left:-38px;top:6px;width:18px;height:18px;border-radius:50%;
  background:var(--card);border:4px solid var(--navy-500);box-shadow:0 0 0 4px rgba(30,111,184,.14);
}
.edu-item:last-child::before{border-color:var(--accent);box-shadow:0 0 0 4px rgba(255,122,47,.16)}
.edu-top{display:flex;align-items:baseline;gap:18px;flex-wrap:wrap}
.edu-period{font-family:var(--font-mono);font-size:14px;color:var(--accent-deep);letter-spacing:.06em;border:1px solid rgba(255,122,47,.35);background:var(--accent-soft);padding:4px 14px;border-radius:99px}
.edu-item h3{font-size:22px;font-weight:800;color:var(--navy-900)}
.edu-item .deg{font-size:16.5px;color:var(--ink-soft);margin-top:4px}
.edu-item .deg .sep{color:var(--line);margin:0 8px}
.edu-item .adv{font-size:14.5px;color:var(--muted);margin-top:8px;font-family:var(--font-mono)}
.edu-item .adv b{color:var(--navy-500);font-weight:600}

/* ============ 科研经历 ============ */
.research-head{
  display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-bottom:30px;
}
.research-item{
  padding:36px;display:flex;gap:22px;transition:transform .25s,box-shadow .25s;
}
.research-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.research-icon{
  flex:0 0 50px;width:50px;height:50px;border-radius:12px;display:grid;place-items:center;
  background:var(--accent-soft);color:var(--accent-deep);border:1px solid rgba(255,122,47,.3);
}
.research-item h3{font-size:18px;font-weight:700;color:var(--navy-900);line-height:1.45}
.research-item .src{font-family:var(--font-mono);font-size:13px;color:var(--navy-500);letter-spacing:.04em;margin:8px 0 12px;display:block}
.research-item .src span{color:var(--muted)}
.research-item p{font-size:15.8px;color:var(--ink-soft)}
.research-item p b{color:var(--navy-900)}
.practice-note{
  margin-top:30px;padding:30px 36px;display:flex;gap:18px;align-items:flex-start;
  border-style:dashed;
}
.practice-note h4{font-size:16.5px;font-weight:700;color:var(--navy-900);margin-bottom:12px}
.practice-list{display:flex;flex-wrap:wrap;gap:14px 0}
.practice-list li{
  font-size:15.5px;color:var(--ink-soft);display:flex;gap:10px;align-items:baseline;
  flex:1 1 100%;line-height:1.7;
}
.practice-list li+li{border-top:1px dashed var(--line-soft);padding-top:14px}
.practice-list .ym{font-family:var(--font-mono);font-size:13px;color:var(--accent-deep);white-space:nowrap;flex:0 0 auto}
.practice-list span{flex:1;min-width:0}
.practice-list b{color:var(--navy-900);font-weight:600}

/* ============ 代表成果 ============ */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:40px;
}
.stat{padding:32px 18px;text-align:center}
.stat .num{
  font-family:var(--font-display);font-size:clamp(40px,5vw,56px);font-weight:700;
  color:var(--navy-900);line-height:1.1;
}
.stat .num em{font-style:normal;color:var(--accent-deep)}
.stat .lbl{font-size:14.5px;color:var(--muted);margin-top:8px;font-family:var(--font-mono);letter-spacing:.08em}
.pub-item{
  display:grid;grid-template-columns:64px 1fr auto;gap:24px;align-items:start;
  padding:28px 34px;transition:transform .22s,border-color .22s;border-left:3px solid transparent;
}
.pub-item:hover{transform:translateX(6px);border-left-color:var(--accent)}
.pub-num{
  font-family:var(--font-display);font-size:30px;font-weight:700;color:var(--line);
  padding-top:2px;
}
.pub-item .title{font-size:17.5px;font-weight:600;color:var(--ink);line-height:1.6}
.pub-item .meta{font-size:15px;color:var(--muted);margin-top:8px;font-style:normal}
.pub-item .meta b{color:var(--navy-500);font-weight:600}
.pub-badge{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;white-space:nowrap;
  padding:6px 14px;border-radius:99px;border:1px solid var(--line);color:var(--ink-soft);
  align-self:center;
}
.pub-badge.t1{background:var(--navy-900);color:#fff;border-color:var(--navy-900)}
.pub-badge.t2{background:var(--navy-500);color:#fff;border-color:var(--navy-500)}
.pub-badge.rev{border-color:rgba(255,122,47,.45);color:var(--accent-deep);background:var(--accent-soft)}
.pub-dl{display:inline-flex;align-items:center;gap:7px;margin-top:12px;padding:7px 16px;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--navy-500);font-size:13.5px;font-weight:600;text-decoration:none;transition:all .25s ease;cursor:pointer}
.pub-dl:hover{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(255,122,47,.28);transform:translateY(-2px)}
.pub-note{font-size:14px;color:var(--muted);margin-top:26px;font-family:var(--font-mono);letter-spacing:.03em}

/* ============ 技能与荣誉 ============ */
.skills-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.skill-card{padding:40px}
.skill-card h3{
  font-size:17px;font-weight:700;color:var(--navy-900);display:flex;align-items:center;gap:10px;margin-bottom:26px;
}
.skill-card h3 .mono{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:var(--muted);margin-left:auto;text-transform:uppercase}
.skill-group{margin-bottom:26px}
.skill-group:last-child{margin-bottom:0}
.skill-group .g{font-family:var(--font-mono);font-size:13px;letter-spacing:.12em;color:var(--accent-deep);text-transform:uppercase;display:block;margin-bottom:14px}
.skill-group .g::after{content:"";display:inline-block;width:26px;height:1px;background:var(--line);margin-left:10px;vertical-align:middle}
.skill-tags{display:flex;flex-wrap:wrap;gap:12px}
.skill-tags .tag{font-size:14.5px;padding:9px 17px}
.honor-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.honor-item{
  padding:20px 22px;display:flex;align-items:center;gap:16px;transition:transform .2s;
}
.honor-item:hover{transform:translateY(-3px)}
.honor-year{font-family:var(--font-display);font-size:23px;font-weight:700;color:var(--navy-500);min-width:46px}
.honor-item .txt{font-size:15.5px;color:var(--ink-soft);line-height:1.5}
.honor-item .txt b{color:var(--ink);font-weight:600}
.honor-lv{
  margin-left:auto;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;
  padding:4px 11px;border-radius:99px;white-space:nowrap;
}
.honor-lv.nat{background:var(--navy-900);color:#fff}
.honor-lv.school{background:var(--paper-deep);color:var(--ink-soft)}
.honor-lv.dept{background:var(--accent-soft);color:var(--accent-deep)}

/* ============ 联系 ============ */
.contact-wrap{padding:84px 48px;text-align:center;position:relative;overflow:hidden}
.contact-wrap .struct-svg{position:absolute;left:-30px;bottom:-40px;width:300px;height:230px;opacity:.5;transform:none}
.contact-title{font-size:clamp(34px,5vw,52px);font-weight:900;color:var(--navy-900);margin:18px 0 14px}
.contact-sub{font-size:18px;color:var(--muted);max-width:560px;margin:0 auto}
.contact-links{display:flex;justify-content:center;gap:28px;flex-wrap:wrap;margin-top:46px}
.contact-link{
  display:flex;align-items:center;gap:12px;background:var(--paper);border:1px solid var(--line);
  border-radius:14px;padding:18px 28px;font-size:16.5px;font-weight:600;color:var(--ink);
  transition:.22s;
}
.contact-link:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:var(--navy-500)}
.contact-link .ic{color:var(--navy-500)}
.contact-link .mono{font-family:var(--font-mono);font-size:12px;color:var(--muted);display:block;font-weight:400;letter-spacing:.08em}
.contact-ctas{display:flex;justify-content:center;gap:18px;margin-top:48px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.footer{
  border-top:1px solid var(--line-soft);padding:30px 0 40px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.footer .mono{font-family:var(--font-mono);font-size:11.5px;color:var(--muted);letter-spacing:.08em}
.footer .mono b{color:var(--navy-500);font-weight:600}

/* ============ 左侧快速定位 ============ */
.side-nav{
  position:fixed;left:26px;top:50%;transform:translateY(-50%);
  display:flex;flex-direction:column;gap:4px;z-index:50;
}
.side-nav a{
  display:flex;align-items:center;gap:10px;padding:7px 12px;border-radius:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:rgba(96,112,134,.85);
  text-decoration:none;transition:.22s;white-space:nowrap;
}
.side-nav a i{width:7px;height:7px;border-radius:50%;background:rgba(23,42,74,.22);transition:.22s;flex:none}
.side-nav a:hover{color:var(--navy-500);background:rgba(23,42,74,.05)}
.side-nav a:hover i{background:var(--navy-500)}
.side-nav a.active{color:var(--navy-700);font-weight:600}
.side-nav a.active i{background:var(--accent);box-shadow:0 0 0 4px rgba(255,122,47,.2)}
@media (max-width:1240px){.side-nav{display:none}}

/* ============ 相关展示 ============ */
.show-block{margin-top:56px}
.show-block + .show-block{margin-top:72px;padding-top:56px;border-top:1px dashed var(--line)}
.show-tag{display:inline-block;font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;color:var(--accent-deep);border:1px solid rgba(255,122,47,.45);background:rgba(255,122,47,.08);padding:4px 12px;border-radius:999px}
.show-block h3{font-size:clamp(20px,2.4vw,26px);color:var(--navy-800);margin:14px 0 6px;letter-spacing:.01em}
.show-paper{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.05em;line-height:1.8}
.show-paper b{color:var(--navy-500);font-weight:600}
.show-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;margin-top:26px;align-items:stretch}
.show-card{background:var(--card);border:1px solid var(--line-soft);border-radius:14px;padding:24px;box-shadow:var(--shadow-sm)}
.show-card h4{font-size:15px;color:var(--navy-700);display:flex;align-items:center;gap:9px;margin-bottom:12px}
.show-card h4 .ic{width:26px;height:26px;border-radius:7px;background:rgba(30,111,184,.1);color:var(--navy-500);display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex:none}
.show-card p{font-size:14.5px;line-height:1.85;color:var(--ink);margin-bottom:12px}
.show-card ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.show-card li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:var(--ink)}
.show-card li::before{content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:9px}
.show-fig{background:linear-gradient(160deg,#f4f7fb,#e9f0f8);border:1px solid var(--line-soft);border-radius:14px;padding:20px;display:flex;align-items:center;justify-content:center;min-height:260px}
.show-nums{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:22px}
.show-num{background:var(--card);border:1px solid var(--line-soft);border-radius:12px;padding:18px 14px;text-align:center;box-shadow:var(--shadow-sm)}
.show-num b{display:block;font-size:26px;color:var(--navy-800);font-family:var(--font-mono);letter-spacing:.02em}
.show-num span{font-size:12px;color:var(--muted);letter-spacing:.06em}
.show-cmp{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:22px}
.cmp-item{background:var(--card);border:1px solid var(--line-soft);border-radius:12px;padding:18px 14px;text-align:center;box-shadow:var(--shadow-sm)}
.cmp-item .big{font-size:21px;font-weight:700;font-family:var(--font-mono);color:var(--navy-700)}
.cmp-item .big.dn{color:#C05C3C}
.cmp-item .big.up{color:var(--navy-500)}
.cmp-item .lbl{font-size:12px;color:var(--muted);margin-top:8px;letter-spacing:.04em;line-height:1.7}
@media (max-width:1024px){
  .show-grid{grid-template-columns:1fr}
  .show-nums,.show-cmp{grid-template-columns:repeat(2,1fr)}
}

/* ============ 页脚统计（隐蔽角落） ============ */
.site-stats{
  flex-basis:100%;text-align:center;order:3;
  font-family:var(--font-mono);font-size:10.5px;color:rgba(96,112,134,.72);
  letter-spacing:.1em;user-select:none;margin-top:6px;
}
.site-stats b{font-weight:500;color:rgba(23,42,74,.62)}
.site-stats a{color:rgba(96,112,134,.72);text-decoration:none;border-bottom:1px dotted rgba(96,112,134,.45);transition:color .2s,border-color .2s}
.site-stats a:hover{color:var(--navy-500);border-color:var(--navy-500)}

/* ============ 访客分布地图模态 ============ */
.modal-mask{position:fixed;inset:0;background:rgba(9,17,31,.55);backdrop-filter:blur(6px);z-index:999;display:none;align-items:center;justify-content:center;padding:24px}
.modal-mask.open{display:flex}
.modal-card{
  background:#fff;border-radius:16px;box-shadow:0 24px 64px rgba(9,17,31,.35);
  width:min(760px,94vw);padding:26px 26px 22px;position:relative;
  animation:modalIn .28s cubic-bezier(.2,.7,.3,1);
}
@keyframes modalIn{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:none}}
.modal-close{position:absolute;top:12px;right:14px;border:none;background:rgba(23,42,74,.08);color:var(--navy-500);width:34px;height:34px;border-radius:50%;font-size:15px;cursor:pointer;line-height:1;transition:.2s}
.modal-close:hover{background:var(--navy-500);color:#fff}
.modal-title{font-size:16px;font-weight:700;color:var(--navy-700);letter-spacing:.02em}
.modal-sub{font-family:var(--font-mono);font-size:11.5px;color:var(--muted);margin-top:4px;letter-spacing:.06em}
#statsMap{width:100%;height:420px;margin-top:14px}
@media (max-width:760px){#statsMap{height:340px}}

/* ============ 滚动显现 ============ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.visible{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .brand small{display:none}
  .nav-links{gap:16px}
  .nav-links a{font-size:15px}
}
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:64px}
  .hero-visual{order:2}
  .about-grid,.research-head,.skills-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  .nav-links{
    position:fixed;top:var(--nav-h);left:0;right:0;flex-direction:column;gap:0;
    background:rgba(244,246,249,.98);border-bottom:1px solid var(--line-soft);
    padding:10px 30px 18px;transform:translateY(-130%);transition:transform .3s;
    align-items:flex-start;display:none;
  }
  .nav-links.open{transform:none;display:flex}
  .nav-links a{width:100%;padding:13px 0;border-bottom:1px solid var(--line-soft)}
  .nav-burger{display:flex}
  .nav-cta{display:none}
  .section{padding:84px 0}
  .hero-name{font-size:clamp(50px,15vw,76px)}
  .float-badge.now{left:-6px}
  .float-badge.school{right:-6px}
  .honor-list{grid-template-columns:1fr}
  .pub-item{grid-template-columns:1fr;gap:10px;padding:24px}
  .pub-badge{justify-self:start}
  .contact-wrap{padding:60px 24px}
  .research-item{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}
:focus-visible{outline:3px solid rgba(30,111,184,.5);outline-offset:2px;border-radius:4px}


/* ============ 独立展示页（相关展示 / 资源共享） ============ */
.show-hero{padding:120px 0 44px;text-align:center}
.show-hero .sec-num{display:inline-block;font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;color:var(--accent-deep);margin-bottom:10px}
.show-hero h1{font-size:clamp(34px,6vw,54px);color:var(--navy-800);letter-spacing:.01em}
.show-hero .en{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.18em;margin-top:8px;display:block}
.show-lead{max-width:760px;margin:18px auto 0;font-size:15px;line-height:1.9;color:var(--ink-soft)}

/* 图片布局 */
.showcase-page .show-hero{padding-bottom:30px}
.sac-feature{padding:8px 0 0}
.sac-feature-head{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:22px}
.sac-feature-head h2{font-size:clamp(22px,3vw,30px);color:var(--navy-800);margin:12px 0 8px;line-height:1.5}
.sac-feature-head p{max-width:780px;font-size:14px;color:var(--ink-soft);line-height:1.85}
.sac-open{flex-shrink:0;display:inline-flex;padding:10px 18px;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--navy-500);font-size:13px;font-weight:600;transition:background .2s,border-color .2s}
.sac-open:hover{background:var(--accent-soft);border-color:var(--accent)}
.sac-embed{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:#f2f5f9;box-shadow:var(--shadow)}
.sac-embed iframe{display:block;width:100%;height:800px;border:0;color-scheme:light}
.sac-caption{margin-top:14px;font-size:12px;line-height:1.85;color:var(--muted)}
.sac-mobile-hint{display:none}
.showcase-page .showcase-research{padding-top:12px}
@media(max-width:760px){
  .sac-feature-head{flex-direction:column;align-items:flex-start;gap:16px}
  .sac-feature .wrap{padding:0 16px}
  .sac-mobile-hint{display:block;margin-top:4px}
}

.fig-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}
.fig{background:var(--card);border:1px solid var(--line-soft);border-radius:14px;padding:14px;box-shadow:var(--shadow-sm);overflow:hidden;position:relative}
.fig img{width:100%;height:auto;display:block;border-radius:8px;background:#fff;transition:transform .5s cubic-bezier(.2,.7,.3,1)}
.fig:hover img{transform:scale(1.015)}
.fig figcaption{font-family:var(--font-mono);font-size:11px;color:var(--muted);letter-spacing:.05em;margin-top:10px;line-height:1.7}
.fig.wide{grid-column:1/-1}
@media (max-width:1024px){.fig-row{grid-template-columns:1fr}}

/* 动效：扫描线 / 流动箭头 / 节点呼吸 */
.fig::after{content:"";position:absolute;left:0;right:0;top:-45%;height:38%;pointer-events:none;background:linear-gradient(180deg,transparent,rgba(255,122,47,.14),transparent);animation:figScan 3.2s ease-in-out infinite}
@keyframes figScan{0%{top:-45%}100%{top:120%}}
@keyframes dashFlow{to{stroke-dashoffset:-30}}
.flow-line{stroke-dasharray:7 8;animation:dashFlow 1.1s linear infinite}
@keyframes nodePulse{0%,100%{opacity:1}50%{opacity:.4}}
.node-pulse{animation:nodePulse 2.4s ease-in-out infinite}
@media (prefers-reduced-motion:reduce){
  .fig::after{display:none}
  .flow-line{animation:none}
  .node-pulse{animation:none}
}

/* 资源共享页标题 */
.page-note{font-family:var(--font-mono);font-size:12px;color:var(--muted);letter-spacing:.04em;margin-top:20px;line-height:1.9}

/* 空状态占位 */
.empty-state{text-align:center;padding:70px 30px;color:var(--muted)}
.empty-ic{font-size:34px;color:var(--navy-300);margin-bottom:14px;opacity:.6}
.empty-state p{font-size:14px;letter-spacing:.05em}