:root{--bg:#050611;--bg2:#091021;--text:#f4f6f3;--muted:#94a0ae;--green:#20f6aa;--blue:#31b8ef;--line:rgba(200,220,230,.16);--pad:clamp(22px,5vw,76px);--max:1320px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"Microsoft YaHei",sans-serif;overflow-x:hidden}body:before{content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;background-image:radial-gradient(circle,rgba(116,165,173,.12) 1px,transparent 1px);background-size:50px 50px}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit}.header{height:82px;position:fixed;inset:0 0 auto;z-index:30;padding:0 var(--pad);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid transparent;transition:.3s}.header.scrolled{height:66px;background:rgba(5,6,17,.78);border-color:var(--line);backdrop-filter:blur(18px)}.brand{font-size:17px;font-weight:900;letter-spacing:-.04em}.brand span{color:var(--green)}nav{display:flex;gap:34px}nav a,.header-contact{font:11px Consolas,monospace;letter-spacing:.12em;color:var(--muted);transition:.2s}nav a:hover,.header-contact:hover{color:var(--green)}.menu{display:none;background:none;border:0}.menu i{display:block;width:24px;height:1px;background:white;margin:6px}
.hero{min-height:100svh;position:relative;display:grid;place-items:center;padding:120px var(--pad) 86px;overflow:hidden;background:radial-gradient(circle at 63% 15%,rgba(9,86,118,.38),transparent 33%),radial-gradient(circle at 98% 65%,rgba(18,25,109,.35),transparent 34%)}.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 70%,var(--bg));pointer-events:none}.hero-glow{position:absolute;width:520px;height:520px;right:4%;top:15%;border-radius:50%;background:rgba(32,246,170,.025);box-shadow:0 0 160px rgba(32,246,170,.06);border:1px solid rgba(32,246,170,.07)}.hero-inner{position:relative;z-index:2;text-align:center;max-width:1200px}.availability{font:11px Consolas,monospace;letter-spacing:.15em;color:var(--muted);display:flex;justify-content:center;align-items:center;gap:10px;margin:0 0 clamp(34px,6vh,70px)}.availability i{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 14px var(--green);animation:pulse 1.8s infinite}.availability span{color:#667585}.hero h1{font-family:Arial Black,Arial,"Microsoft YaHei",sans-serif;font-size:clamp(56px,9.4vw,148px);line-height:.82;letter-spacing:-.075em;margin:0;white-space:nowrap}.hero h1 em{font-style:italic;color:var(--green);text-shadow:0 0 45px rgba(32,246,170,.12)}.hero-role{font-size:clamp(19px,2.1vw,30px);font-weight:700;margin:clamp(32px,5vh,52px) 0 10px}.hero-role b{color:var(--green);font-weight:400}.hero-copy{margin:0;color:var(--muted);font-size:15px}.hero-actions{display:flex;justify-content:center;gap:10px;margin-top:28px}.btn{min-height:48px;padding:0 22px;display:inline-flex;align-items:center;justify-content:center;gap:18px;border:1px solid var(--line);border-radius:999px;background:rgba(8,15,28,.32);font-size:13px;cursor:pointer;transition:.25s}.btn:hover{transform:translateY(-2px);border-color:var(--green);color:var(--green)}.btn-primary{background:var(--green);border-color:var(--green);color:#03150e;font-weight:800}.btn-primary:hover{color:#03150e;background:#75ffd0;box-shadow:0 10px 32px rgba(32,246,170,.16)}.hero-tags,.about-tags,.project-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:25px}.hero-tags span,.about-tags span,.project-tags span{padding:8px 13px;border:1px solid var(--line);border-radius:999px;color:#b7c1c9;font:10px Consolas,monospace;transition:.2s}.hero-tags span:hover,.about-tags span:hover,.project-tags span:hover{border-color:var(--green);color:var(--green)}.scroll{position:absolute;z-index:3;bottom:25px;left:50%;transform:translateX(-50%);font:9px Consolas,monospace;letter-spacing:.14em;color:#677481;display:flex;align-items:center;gap:10px}.scroll i{width:28px;height:1px;background:var(--green)}
.section{width:min(var(--max),100%);margin:auto;padding:clamp(90px,12vw,170px) var(--pad)}.section-title{margin-bottom:clamp(46px,7vw,80px)}.section-title>p,.contact>p{color:var(--green);font:11px Consolas,monospace;letter-spacing:.14em;margin:0 0 18px}.section-title h2,.contact h2{font-family:Arial Black,Arial,"Microsoft YaHei",sans-serif;font-size:clamp(43px,6.5vw,88px);line-height:.98;letter-spacing:-.06em;margin:0}.section-title.split{display:flex;justify-content:space-between;align-items:end}.section-title.split>span{max-width:380px;color:var(--muted);line-height:1.8;font-size:14px}.about{border-bottom:1px solid var(--line)}.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(50px,8vw,120px)}.about-intro>p{font-size:clamp(24px,3.4vw,45px);line-height:1.5;letter-spacing:-.035em;margin:0}.career{display:flex;flex-wrap:wrap;gap:9px;margin-top:40px;align-items:center}.career span{font:10px Consolas,monospace;color:var(--green);margin-right:12px}.career b{font-size:12px;font-weight:400;border:1px solid var(--line);padding:10px 14px;border-radius:99px}.timeline{border-top:1px solid var(--line)}.timeline article{display:flex;gap:30px;padding:27px 0;border-bottom:1px solid var(--line)}.timeline time{min-width:80px;font:bold 29px Arial;color:var(--green)}.timeline h3{margin:3px 0 9px;font-size:18px}.timeline p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}.about-tags{justify-content:flex-start;margin-top:65px}.about-tags span{padding:11px 16px}
.skills{width:100%;max-width:none;background:rgba(9,16,33,.66)}.skills>.section-title,.skills>.skill-grid{max-width:calc(var(--max) - 2*var(--pad));margin-left:auto;margin-right:auto}.skill-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.skill-card{min-height:245px;padding:28px;border:1px solid var(--line);background:linear-gradient(145deg,rgba(14,27,47,.68),rgba(6,9,19,.42));position:relative;transition:.3s}.skill-card:hover{transform:translateY(-7px);border-color:rgba(32,246,170,.45);background:linear-gradient(145deg,rgba(15,48,52,.52),rgba(6,9,19,.52))}.skill-card>span{font:11px Consolas,monospace;color:var(--green)}.skill-card h3{font-size:25px;margin:42px 0 14px}.skill-card p{color:var(--muted);line-height:1.75;font-size:13px;margin:0}.skill-card i{font-style:normal;position:absolute;right:25px;top:25px;color:#5f6d77}.skill-card:hover i{color:var(--green)}
.project{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(42px,7vw,100px);align-items:center;padding:clamp(55px,8vw,105px) 0;border-top:1px solid var(--line)}.project:last-child{border-bottom:1px solid var(--line)}.project.video-right .project-media{order:2}.project-media{min-width:0;display:flex;align-items:center;justify-content:center;min-height:430px}.video-shell{position:relative;width:min(var(--vw),100%);height:min(var(--vh),70vw);transform:scale(var(--vs));border-radius:var(--vr);overflow:hidden;border:1px solid var(--line);background:#080d18;box-shadow:0 30px 80px rgba(0,0,0,.4);transition:.35s}.video-shell:hover{border-color:rgba(32,246,170,.48);transform:scale(calc(var(--vs) * 1.018))}.video-shell video{display:block;width:100%;height:100%;background:#080d18}.video-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:22px;background:radial-gradient(circle at 70% 35%,rgba(21,132,143,.35),transparent 22%),linear-gradient(145deg,#0c1d2e,#080914)}.video-placeholder:after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(32,246,170,.18);border-radius:50%;left:50%;top:50%;transform:translate(-50%,-50%);box-shadow:0 0 60px rgba(32,246,170,.08)}.video-placeholder span,.video-placeholder small{font:10px Consolas,monospace;letter-spacing:.12em;color:var(--muted)}.video-placeholder b{font-size:21px;align-self:center;color:#b4c7cb}.has-video .video-placeholder{display:none}.project-type{font:10px Consolas,monospace;color:var(--green);letter-spacing:.13em}.project-copy h3{font-size:clamp(34px,4.2vw,58px);line-height:1.05;letter-spacing:-.05em;margin:17px 0}.project-desc{font-size:18px;line-height:1.7;color:#c8d0d3}.project-copy dl{margin:30px 0}.project-copy dl>div{display:grid;grid-template-columns:78px 1fr;gap:20px;padding:14px 0;border-top:1px solid var(--line)}.project-copy dl>div:last-child{border-bottom:1px solid var(--line)}dt{font:10px Consolas,monospace;color:var(--green)}dd{margin:0;color:var(--muted);font-size:12px;line-height:1.7}.project-tags{justify-content:flex-start}.text-link{margin-top:26px;padding:0 0 9px;border:0;border-bottom:1px solid var(--green);background:none;font-size:13px;cursor:pointer}.text-link i{font-style:normal;color:var(--green);margin-left:18px}.text-link:hover{color:var(--green)}
.workflow-line{display:grid;grid-template-columns:repeat(8,1fr);overflow:auto}.workflow-line article{min-width:130px;position:relative;padding:0 18px 0 0}.workflow-line span{font:10px Consolas,monospace;color:var(--green)}.workflow-line i{display:block;width:100%;height:1px;background:var(--line);margin:18px 0;position:relative}.workflow-line i:before{content:"";position:absolute;left:0;top:-5px;width:11px;height:11px;border:1px solid var(--green);border-radius:50%;background:var(--bg)}.workflow-line h3{font-size:16px;margin:0}.tools{border-top:1px solid var(--line)}.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.tool-grid article{padding:25px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:12px;transition:.2s}.tool-grid article:hover{background:rgba(32,246,170,.035)}.tool-grid b{font-size:20px}.tool-grid span{font-size:12px;color:var(--muted)}
.contact{padding:clamp(100px,13vw,180px) var(--pad) 35px;position:relative;overflow:hidden;background:radial-gradient(circle at 80% 25%,rgba(8,93,116,.38),transparent 31%),#050611}.contact h2{font-size:clamp(60px,10vw,145px)}.contact h2 em{font-style:italic;color:var(--green)}.contact-row{display:flex;justify-content:space-between;align-items:end;gap:50px;margin:70px 0 110px}.contact-row>p{max-width:460px;line-height:1.8;color:var(--muted)}.contact-row>div{display:flex;gap:9px;flex-wrap:wrap}.contact footer{display:flex;justify-content:space-between;gap:20px;padding-top:25px;border-top:1px solid var(--line);font:9px Consolas,monospace;color:#6c7884;letter-spacing:.1em}.toast{position:fixed;left:50%;bottom:25px;z-index:50;transform:translate(-50%,20px);opacity:0;background:var(--green);color:#03150e;border-radius:99px;padding:12px 18px;font-size:12px;font-weight:700;transition:.25s}.toast.show{opacity:1;transform:translate(-50%,0)}
.reveal{opacity:0;transform:translateY(25px);transition:opacity .75s,transform .75s}.reveal.visible{opacity:1;transform:none}@keyframes pulse{50%{opacity:.4;transform:scale(.75)}}
@media(max-width:900px){nav{display:none}.header-contact{display:none}.menu{display:block}.header.open{height:auto;padding-top:23px;padding-bottom:23px;align-items:flex-start;background:rgba(5,6,17,.97)}.header.open nav{display:flex;position:absolute;top:68px;left:var(--pad);right:var(--pad);padding:25px 0 35px;flex-direction:column;background:#050611}.hero h1{font-size:clamp(49px,11vw,92px)}.about-grid,.project{grid-template-columns:1fr}.project.video-right .project-media{order:0}.project-media{min-height:360px}.skill-grid{grid-template-columns:repeat(2,1fr)}.tool-grid{grid-template-columns:repeat(2,1fr)}.section-title.split,.contact-row{align-items:flex-start;flex-direction:column}}
@media(max-width:620px){.hero{padding-top:105px}.hero h1{font-size:clamp(42px,12.4vw,72px);line-height:.9;white-space:normal}.hero-actions{flex-wrap:wrap}.hero-actions .btn{flex:1 1 42%;padding:0 14px}.scroll{display:none}.section{padding-top:88px;padding-bottom:88px}.skill-grid{grid-template-columns:1fr}.skill-card{min-height:220px}.project{padding:65px 0;gap:35px}.project-media{min-height:290px}.video-shell{height:min(var(--vh),75vw);transform:none}.video-shell:hover{transform:scale(1.01)}.project-copy h3{font-size:36px}.tool-grid{grid-template-columns:1fr}.contact-row{margin-bottom:70px}.contact-row>div{width:100%}.contact-row .btn{flex:1 1 42%;padding:0 13px}.contact footer{flex-wrap:wrap}.contact footer span:nth-child(2){display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.availability i{animation:none}}

/* 首屏姓名字级：英文问候与中文姓名保持同一行 */
.hero h1{font-size:inherit;line-height:.92;white-space:nowrap}
.hero h1>span,.hero h1>em{display:inline-block}
.hero h1>span{font-size:clamp(32px,4.5vw,68px)}
.hero h1>em{font-size:clamp(48px,7.2vw,112px);margin-left:.14em}
@media(max-width:620px){.hero h1{white-space:nowrap}.hero h1>span{font-size:clamp(20px,6.3vw,28px)}.hero h1>em{font-size:clamp(38px,11.5vw,48px);margin-left:.08em}}

/* 九步制作流程：桌面端上下交错，移动端可横向滑动 */
.workflow{max-width:none;width:100%;padding-left:var(--pad);padding-right:var(--pad);background:radial-gradient(circle at 50% 0,rgba(14,76,106,.18),transparent 38%)}
.workflow-heading{max-width:1320px;margin:0 auto 38px}
.workflow-heading>span{display:inline-flex;padding:9px 14px;border-radius:999px;background:rgba(12,128,91,.55);color:#77ffd0;font:12px Consolas,monospace;letter-spacing:.08em}
.workflow-heading h2{margin:12px 0 0;font-size:clamp(32px,4vw,50px);letter-spacing:-.04em}
.workflow-line{position:relative;display:grid;grid-template-columns:repeat(9,minmax(112px,1fr));max-width:1320px;min-width:1080px;height:420px;margin:auto;overflow:visible}
.workflow-line:before{content:"";position:absolute;left:0;right:0;top:208px;height:2px;background:rgba(202,216,225,.25)}
.workflow-step{min-width:0;height:420px;position:relative;padding:0 13px;text-align:center}
.workflow-step .step-copy{position:absolute;left:10px;right:10px}
.workflow-step.is-top .step-copy{bottom:236px}
.workflow-step.is-bottom .step-copy{top:286px}
.workflow-step h3{margin:0 0 13px;font-size:clamp(17px,1.6vw,23px)}
.workflow-step p{max-width:150px;margin:auto;color:#d0d8df;font-size:14px;line-height:1.65}
.step-node{position:absolute;z-index:2;left:50%;top:184px;width:50px;height:50px;transform:translateX(-50%);display:grid;place-items:center;border:2px solid var(--green);border-radius:50%;background:var(--bg)}
.step-node b{font-size:23px}.step-node i{position:absolute;left:50%;width:2px;height:38px;transform:translateX(-50%);background:var(--green)}
.is-top .step-node i{bottom:48px}.is-bottom .step-node i{top:48px}
.workflow-step:nth-child(3n) .step-node{border-color:var(--blue)}
.workflow-step:nth-child(3n) .step-node i{background:var(--blue)}
.workflow-step:nth-child(4n) .step-node{border-color:#13244d}.workflow-step:nth-child(4n) .step-node i{background:#13244d}
@media(max-width:1100px){.workflow-line{overflow:visible}.workflow{overflow-x:auto}.workflow-heading{min-width:1080px}}
@media(max-width:620px){.workflow{padding-top:88px;padding-bottom:70px}.workflow-heading{min-width:940px}.workflow-line{min-width:940px;grid-template-columns:repeat(9,104px);height:390px}.workflow-line:before{top:193px}.workflow-step{height:390px;padding:0 7px}.workflow-step.is-top .step-copy{bottom:220px}.workflow-step.is-bottom .step-copy{top:268px}.step-node{top:169px}.workflow-step h3{font-size:17px}.workflow-step p{font-size:12px}}

/* 流程文字可读性修正：文字与节点保持安全距离 */
.workflow-line{height:400px}
.workflow-line:before{top:205px}
.workflow-step{height:400px}
.workflow-step .step-copy{left:6px;right:6px;padding:10px 6px;border-radius:12px;background:linear-gradient(180deg,rgba(5,6,17,.96),rgba(5,6,17,.82))}
.workflow-step.is-top .step-copy{top:24px;bottom:auto;min-height:116px}
.workflow-step.is-bottom .step-copy{top:274px;min-height:112px}
.step-node{top:181px}
.step-node i:before{display:none!important}
.is-top .step-node i{bottom:49px;height:34px}
.is-bottom .step-node i{top:49px;height:34px}
.workflow-step h3{margin-bottom:10px;line-height:1.25}
.workflow-step p{line-height:1.7}
@media(max-width:620px){.workflow-line{height:380px}.workflow-line:before{top:190px}.workflow-step{height:380px}.workflow-step.is-top .step-copy{top:12px;bottom:auto;min-height:116px}.workflow-step.is-bottom .step-copy{top:258px;min-height:108px}.step-node{top:166px}}

/* 流程说明固定为两行，并与二级标题居中对齐 */
.workflow-step .step-copy{padding:8px 0;background:none;text-align:center}
.workflow-step h3{width:100%;text-align:center}
.workflow-step p{width:100%;max-width:none;margin:0;text-align:center;font-size:12px;line-height:1.75;letter-spacing:-.02em;white-space:nowrap}
@media(max-width:620px){.workflow-heading{min-width:1080px}.workflow-line{min-width:1080px;grid-template-columns:repeat(9,120px)}.workflow-step p{font-size:11px;line-height:1.7}}

/* 下方流程文案增加留白 */
.workflow-step.is-bottom .step-copy{transform:translateY(24px)}
@media(max-width:620px){.workflow-step.is-bottom .step-copy{transform:translateY(18px)}}

/* 居中式 Contact 收尾区域 */
.contact{min-height:80svh;padding:clamp(100px,12vw,170px) var(--pad) 34px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;isolation:isolate;background:radial-gradient(circle at 50% 32%,rgba(20,116,118,.22),transparent 28%),radial-gradient(circle at 78% 45%,rgba(24,37,122,.18),transparent 35%),linear-gradient(180deg,#050611,#07101c 58%,#050611)}
.contact:before{content:"";position:absolute;inset:0;z-index:-2;opacity:.6;background-image:radial-gradient(circle,rgba(102,176,173,.12) 1px,transparent 1px);background-size:50px 50px}
.contact-aura{position:absolute;z-index:-1;left:50%;top:45%;width:min(720px,85vw);aspect-ratio:1;transform:translate(-50%,-50%);border:1px solid rgba(32,246,170,.06);border-radius:50%;box-shadow:0 0 150px rgba(32,246,170,.045);pointer-events:none}
.contact-inner{width:min(1040px,100%);margin:auto;display:flex;flex-direction:column;align-items:center}
.contact-index{margin:0 0 28px;color:var(--green);font:11px Consolas,monospace;letter-spacing:.16em}
.contact .contact-title{margin:0;font-size:clamp(62px,9.5vw,140px);line-height:.82;letter-spacing:-.075em;text-align:center}
.contact-title span,.contact-title em{display:block}.contact-title em{margin-top:.08em;color:var(--green);font-style:italic;text-shadow:0 0 42px rgba(32,246,170,.12)}
.contact-description{max-width:620px;margin:42px auto 0;color:#a9b5bf;font-size:15px;line-height:1.9}
.contact-info{width:100%;margin-top:50px;display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:18px;overflow:hidden;background:rgba(6,11,22,.45);backdrop-filter:blur(12px)}
.contact-info>a,.contact-info>button{min-width:0;padding:24px 18px;display:flex;flex-direction:column;align-items:center;gap:10px;border:0;background:transparent;color:inherit;cursor:pointer;transition:.25s}
.contact-info>a+*,.contact-info>button+*{border-left:1px solid var(--line)}
.contact-info>a:hover,.contact-info>button:hover{background:rgba(32,246,170,.035);box-shadow:inset 0 0 0 1px rgba(32,246,170,.22)}
.contact-info span{color:var(--green);font:10px Consolas,monospace;letter-spacing:.14em;text-transform:uppercase}
.contact-info strong{max-width:100%;font-size:15px;font-weight:500;overflow-wrap:anywhere}
.contact-actions{margin-top:28px;display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.contact-actions .btn:hover{transform:translateY(-2px) scale(1.025);box-shadow:0 8px 28px rgba(32,246,170,.1)}
.contact footer{width:100%;margin-top:auto;padding-top:26px}
.contact-title .reveal:nth-child(2){transition-delay:.12s}.contact-description.reveal{transition-delay:.18s}.contact-info.reveal{transition-delay:.25s}.contact-actions.reveal{transition-delay:.32s}
@media(max-width:700px){.contact{min-height:100svh;padding-top:100px}.contact .contact-title{font-size:clamp(54px,17vw,82px);line-height:.88}.contact-description{margin-top:30px;font-size:14px}.contact-info{grid-template-columns:1fr;margin-top:38px}.contact-info>a,.contact-info>button{padding:18px}.contact-info>a+*,.contact-info>button+*{border-left:0;border-top:1px solid var(--line)}.contact-actions{width:100%;flex-direction:column}.contact-actions .btn{width:100%}.contact footer{margin-top:70px}}

/* 中英文切换 */
.lang-toggle{display:flex;align-items:center;gap:7px;margin-left:auto;margin-right:24px;padding:7px 11px;border:1px solid var(--line);border-radius:999px;background:rgba(5,10,20,.45);color:var(--muted);font:10px Consolas,monospace;cursor:pointer;transition:.2s}
.lang-toggle span,.lang-toggle b{font:inherit}.lang-toggle span{color:var(--green)}.lang-toggle i{width:18px;height:1px;background:var(--line)}.lang-toggle:hover{border-color:var(--green);color:var(--green);box-shadow:0 0 20px rgba(32,246,170,.08)}
@media(min-width:901px){.header-contact{margin-left:0}.lang-toggle{margin-left:22px}}
@media(max-width:900px){.lang-toggle{margin-left:auto;margin-right:10px}.header.open .lang-toggle{margin-top:0}}
@media(max-width:420px){.lang-toggle{padding:6px 9px}.lang-toggle i{display:none}}
[data-language="en"] .hero h1>span,[data-language="en"] .hero h1>em{font-size:clamp(30px,5.2vw,80px)}
[data-language="en"] .workflow-step h3{font-size:clamp(13px,1.2vw,17px)}
[data-language="en"] .workflow-step p{font-size:10px;white-space:normal;line-height:1.45}

/* 导航栏简历下载主按钮 */
.header-resume{display:inline-flex;align-items:center;gap:12px;margin-left:20px;padding:11px 17px;border:1px solid var(--green);border-radius:999px;background:var(--green);color:#03150e;font:700 11px Consolas,monospace;white-space:nowrap;transition:.25s}
.header-resume:hover{transform:translateY(-1px) scale(1.025);background:#72ffd0;box-shadow:0 8px 26px rgba(32,246,170,.18)}
.header-resume span{font-size:14px}
@media(max-width:900px){.header-resume{margin-left:auto;padding:9px 13px}.lang-toggle{margin-left:8px}}
@media(max-width:520px){.header-resume{font-size:9px;padding:8px 10px;gap:7px}.brand{font-size:14px}.lang-toggle{font-size:9px;margin-right:5px}}

/* 竖屏作品视频：保持原始比例，避免裁切和拉伸 */
.video-shell{height:auto;aspect-ratio:var(--va);max-height:var(--vh)}
.project-media{min-height:660px}
@media(max-width:900px){.project-media{min-height:650px}}
@media(max-width:620px){.project-media{min-height:0}.video-shell{width:min(var(--vw),86vw);height:auto;max-height:none;aspect-ratio:var(--va)}}

/* 视频全屏放大 */
.video-expand{position:absolute;z-index:5;right:14px;top:14px;width:42px;height:42px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.25);border-radius:50%;background:rgba(3,8,16,.68);backdrop-filter:blur(10px);color:#fff;font-size:20px;cursor:pointer;opacity:.78;transition:.2s}
.video-expand:hover{opacity:1;transform:scale(1.08);border-color:var(--green);color:var(--green);box-shadow:0 0 22px rgba(32,246,170,.15)}
.video-shell:fullscreen{width:100vw;max-width:none;height:100vh;max-height:none;aspect-ratio:auto;border:0;border-radius:0;background:#000;transform:none}
.video-shell:fullscreen video{width:100%;height:100%;object-fit:contain!important}
.video-shell:fullscreen .video-placeholder{display:none}
.video-shell:fullscreen .video-expand{top:22px;right:22px}
@media(max-width:620px){.video-expand{width:38px;height:38px;right:10px;top:10px}}

/* 无论容器全屏还是播放器原生全屏，都完整显示竖屏原画面 */
.video-shell video{object-fit:contain!important;background:#000}
.video-shell video:fullscreen,.video-shell video:-webkit-full-screen{width:100vw!important;height:100vh!important;object-fit:contain!important;background:#000}