:root{
  --paper:#f7f7f5;
  --white:#ffffff;
  --ink:#121316;
  --muted:#73767d;
  --line:rgba(18,19,22,.10);
  --blue:#2563eb;
  --blue-soft:#bfdbfe;
  --ease:cubic-bezier(.2,.8,.2,1);
  --shadow:0 30px 80px rgba(30,58,138,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:
    radial-gradient(ellipse 60% 45% at 82% -8%,rgba(37,99,235,.10),transparent 70%),
    radial-gradient(ellipse 45% 35% at 8% 30%,rgba(147,197,253,.13),transparent 72%),
    var(--paper);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:#bfdbfe;color:#0f1b3d}
a{color:inherit;text-decoration:none}
button,a{-webkit-tap-highlight-color:transparent}
img{max-width:100%}
.progress{position:fixed;inset:0 0 auto;height:2px;z-index:80;pointer-events:none}
.progress span{display:block;width:0;height:100%;background:linear-gradient(90deg,#60a5fa,#2563eb,#1e3a8a);box-shadow:0 0 16px rgba(37,99,235,.55)}
.ambient{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:-1}
.orb{position:absolute;display:block;border-radius:50%;filter:blur(70px);opacity:.6;will-change:transform}
.orb-a{width:44vw;height:44vw;right:-12vw;top:-14vw;background:radial-gradient(circle,rgba(96,165,250,.30),rgba(96,165,250,0) 68%);animation:driftA 22s ease-in-out infinite alternate}
.orb-b{width:34vw;height:34vw;left:-12vw;top:38vh;background:radial-gradient(circle,rgba(191,219,254,.48),rgba(191,219,254,0) 70%);animation:driftB 28s ease-in-out infinite alternate}
.orb-c{width:30vw;height:30vw;right:8vw;bottom:-15vw;background:radial-gradient(circle,rgba(30,64,175,.18),rgba(30,64,175,0) 70%);animation:driftC 25s ease-in-out infinite alternate}
.cursor-light{position:fixed;left:0;top:0;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(37,99,235,.10),rgba(37,99,235,0) 68%);filter:blur(8px);pointer-events:none;z-index:0;opacity:.9;transform:translate3d(-50%,-50%,0);will-change:transform}
.topbar{position:fixed;z-index:50;top:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;padding:20px clamp(20px,5vw,76px);border-bottom:1px solid transparent;transition:background .35s ease,border-color .35s ease,padding .35s ease}
.topbar.is-scrolled{background:rgba(247,247,245,.76);backdrop-filter:blur(20px) saturate(1.25);-webkit-backdrop-filter:blur(20px) saturate(1.25);border-bottom-color:var(--line);padding-top:14px;padding-bottom:14px}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{width:34px;height:34px;border-radius:10px;display:block;box-shadow:0 7px 18px rgba(37,99,235,.2);flex:0 0 auto}
.brand-mark img{display:block;width:100%;height:100%;border-radius:10px}
.brand-name{font-size:14px;font-weight:650;letter-spacing:-.02em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:28px;font-size:13px;color:var(--muted)}
.nav-links a{transition:color .2s ease}
.nav-links a:hover{color:var(--ink)}
.site-link{color:var(--ink)!important;display:inline-flex;align-items:center;gap:6px}
.site-link span{color:var(--blue);transition:transform .25s var(--ease)}
.site-link:hover span{transform:translate(2px,-2px)}
.hero{min-height:100svh;padding:clamp(130px,17vh,190px) clamp(20px,8vw,130px) 42px;display:flex;flex-direction:column;justify-content:center;position:relative;max-width:1600px;margin:0 auto}
.eyebrow{display:flex;align-items:center;gap:9px;margin:0 0 clamp(28px,5vh,54px);font-size:10px;font-weight:700;letter-spacing:.2em;color:var(--muted);opacity:0;animation:fadeUp .9s .15s var(--ease) forwards}
.status-dot{width:7px;height:7px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px rgba(34,197,94,.12),0 0 18px rgba(34,197,94,.6);animation:pulse 2.6s ease-in-out infinite}
.hero-name{margin:0;display:flex;align-items:baseline;flex-wrap:wrap;gap:0 .01em;font-size:clamp(4.2rem,11.7vw,11.5rem);font-weight:680;line-height:1.03;letter-spacing:-.095em;overflow:visible;padding-top:.05em;padding-bottom:.30em}
.hero-name > span{display:inline-block;line-height:1.06;padding:.03em 0 .06em;transform:translateY(115%);opacity:0;animation:charUp 1s var(--ease) forwards}
.hero-name > span:nth-child(1){animation-delay:.32s}
.hero-name > span:nth-child(2){animation-delay:.40s}
.hero-name > span:nth-child(3){animation-delay:.48s}
.hero-name > span:nth-child(4){animation-delay:.56s}
.hero-name > .ray{position:relative;margin-left:.04em;line-height:1.2;padding:0 .08em .34em;font-size:.84em;letter-spacing:0;transform:none;opacity:1;animation:none}
.hero-name .ray-text{display:inline-block;font-family:"Snell Roundhand","Savoye LET","Bradley Hand","Segoe Script","Brush Script MT",cursive;font-style:normal;font-weight:500;letter-spacing:-.03em;color:var(--blue);clip-path:inset(-20% 100% -32% -4%);animation:writeRay 1.65s 1.05s cubic-bezier(.45,.05,.2,1) forwards}
.hero-name .pen{position:absolute;top:55%;left:3%;width:9px;height:9px;border-radius:50%;background:#2563eb;box-shadow:0 0 14px 3px rgba(37,99,235,.35),0 2px 5px rgba(30,58,138,.25);opacity:0;transform:translate(-50%,-50%);animation:penWrite 1.65s 1.05s cubic-bezier(.45,.05,.2,1) forwards;pointer-events:none}.hero-name .pen::after{content:"";position:absolute;right:6px;top:3px;width:22px;height:2px;border-radius:999px;background:linear-gradient(90deg,rgba(37,99,235,0),rgba(37,99,235,.75));filter:blur(.5px)}

.hero-bottom{margin-top:clamp(42px,8vh,92px);padding-top:18px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:24px;opacity:0;animation:fadeUp 1s .9s var(--ease) forwards}
.currently{margin:0;display:flex;align-items:center;gap:11px;font-size:13px;color:var(--muted);line-height:1.5}
.current-line{width:30px;height:1px;background:var(--blue);opacity:.65;flex:0 0 auto}
.currently a{color:var(--ink);font-weight:650;border-bottom:1px solid rgba(18,19,22,.25);padding-bottom:2px;transition:border-color .2s ease,color .2s ease}
.currently a:hover{color:var(--blue);border-color:var(--blue)}
.scroll-link{display:flex;align-items:center;gap:9px;font-size:10px;font-weight:650;letter-spacing:.12em;color:var(--muted);white-space:nowrap}
.scroll-arrow{display:grid;place-items:center;width:28px;height:28px;border:1px solid var(--line);border-radius:50%;color:var(--ink);animation:hoverDown 2.2s ease-in-out infinite}
.scroll-link:hover .scroll-arrow{background:var(--ink);color:var(--white);border-color:var(--ink);animation-play-state:paused}
.project-section{padding:clamp(40px,8vw,110px) clamp(20px,5vw,76px) clamp(100px,15vh,180px);max-width:1440px;margin:0 auto}
.section-kicker{display:flex;align-items:center;gap:14px;margin:0 0 20px;font-size:10px;font-weight:700;letter-spacing:.18em;color:var(--muted)}
.section-kicker .index{display:grid;place-items:center;width:28px;height:28px;border:1px solid var(--line);border-radius:50%;font-size:9px;letter-spacing:0;color:var(--ink)}
.project-card{position:relative;display:grid;grid-template-columns:minmax(280px,.8fr) minmax(0,1.2fr);gap:clamp(28px,4vw,64px);align-items:center;min-height:min(590px,72vh);padding:clamp(26px,4vw,52px);border:1px solid rgba(18,19,22,.08);border-radius:32px;background:linear-gradient(135deg,rgba(255,255,255,.88),rgba(255,255,255,.58));box-shadow:var(--shadow);overflow:hidden;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}
.project-card::before{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(255,255,255,.55),transparent 38%);pointer-events:none}
.project-copy{position:relative;z-index:2;max-width:430px}
.project-kicker{margin:0 0 18px;font-size:10px;font-weight:700;letter-spacing:.18em;color:var(--blue)}
.project-copy h2{margin:0;font-size:clamp(2.6rem,5.1vw,5.2rem);line-height:.96;letter-spacing:-.075em;font-weight:680}
.project-desc{margin:24px 0 30px;font-size:clamp(15px,1.3vw,18px);line-height:1.75;color:var(--muted);letter-spacing:-.01em}
.project-link{display:inline-flex;align-items:center;gap:12px;font-size:13px;font-weight:650;letter-spacing:-.01em}
.circle-arrow{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--ink);color:var(--white);font-size:16px;line-height:1;transition:transform .35s var(--ease),background .25s ease}
.project-link:hover .circle-arrow{transform:translate(3px,-3px);background:var(--blue)}
.project-visual{position:relative;min-height:440px;perspective:1100px;transform-style:preserve-3d;transform:rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform .45s var(--ease);z-index:1}
.visual-halo{position:absolute;width:75%;aspect-ratio:1;left:12%;top:8%;border-radius:50%;background:radial-gradient(circle,rgba(96,165,250,.27),rgba(96,165,250,0) 68%);filter:blur(22px);pointer-events:none}
.browser-card{position:absolute;width:92%;left:2%;top:12%;border:1px solid rgba(18,19,22,.10);border-radius:17px;overflow:hidden;background:#fff;box-shadow:0 28px 60px rgba(23,37,84,.16);transform:rotate(-2.2deg);animation:floatBrowser 9s ease-in-out infinite;transform-origin:center}
.browser-bar{height:31px;display:flex;align-items:center;gap:6px;padding:0 10px;background:#f7f8fa;border-bottom:1px solid rgba(18,19,22,.07);font-size:8px;color:#9aa3b1;letter-spacing:.03em}
.browser-bar i{width:5px;height:5px;border-radius:50%;background:#d7dbe2}
.browser-bar i:nth-child(1){background:#ff6b6b}.browser-bar i:nth-child(2){background:#ffd166}.browser-bar i:nth-child(3){background:#52d273}
.browser-bar span{margin-left:5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.browser-card img{display:block;width:100%;height:auto}
.phone-card{position:absolute;width:30%;min-width:132px;max-width:184px;right:0;bottom:-4%;border:6px solid #15171b;border-radius:28px;overflow:hidden;background:#15171b;box-shadow:0 26px 50px rgba(16,24,52,.22);transform:rotate(4deg);animation:floatPhone 8s ease-in-out infinite reverse}
.phone-card img{display:block;width:100%;height:auto;border-radius:22px}
.project-card:hover .browser-card{animation-play-state:paused}
.project-card:hover .phone-card{animation-play-state:paused}
.footer{max-width:1440px;margin:0 auto;padding:0 clamp(20px,5vw,76px) 34px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);color:var(--muted);font-size:11px;letter-spacing:.01em}
.footer a{color:var(--ink);transition:color .2s ease}
.footer a:hover{color:var(--blue)}
.reveal{opacity:0;transform:translateY(32px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:translateY(0)}
.project-card.reveal{transition-delay:.06s}
.footer{opacity:0;transform:translateY(12px);transition:opacity .8s .12s var(--ease),transform .8s .12s var(--ease)}
.footer.in{opacity:1;transform:translateY(0)}
@keyframes charUp{from{opacity:0;transform:translateY(115%)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(34,197,94,.12),0 0 16px rgba(34,197,94,.35)}50%{box-shadow:0 0 0 7px rgba(34,197,94,.06),0 0 24px rgba(34,197,94,.55)}}
@keyframes hoverDown{0%,100%{transform:translateY(0)}50%{transform:translateY(4px)}}
@keyframes floatBrowser{0%,100%{transform:rotate(-2.2deg) translateY(0)}50%{transform:rotate(-1.2deg) translateY(-9px)}}
@keyframes floatPhone{0%,100%{transform:rotate(4deg) translateY(0)}50%{transform:rotate(3deg) translateY(10px)}}
@keyframes driftA{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(-8vw,7vh,0) scale(1.12)}}
@keyframes driftB{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(7vw,-6vh,0) scale(1.08)}}
@keyframes driftC{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(-5vw,-5vh,0) scale(1.1)}}
@keyframes writeRay{from{clip-path:inset(-20% 100% -32% -4%)}to{clip-path:inset(-20% -4% -32% -4%)}}
@keyframes penWrite{0%{left:3%;opacity:0}10%{opacity:1}88%{opacity:1}100%{left:96%;opacity:0}}
@media (max-width:900px){
  .topbar{padding:16px 20px}
  .brand-name{font-size:13px}
  .nav-links{gap:18px;font-size:12px}
  .hero{padding:120px 22px 34px;min-height:100svh}
  .hero-name{font-size:clamp(3.7rem,15.5vw,7.2rem);line-height:1.05}
  .hero-bottom{margin-top:9vh;align-items:flex-start;flex-direction:column;gap:24px}
  .project-section{padding:40px 16px 100px}
  .project-card{grid-template-columns:1fr;gap:20px;padding:26px 22px 42px;border-radius:26px;min-height:0}
  .project-copy{max-width:none}
  .project-copy h2{font-size:clamp(2.7rem,12vw,4.4rem)}
  .project-desc{font-size:15px;margin:18px 0 24px}
  .project-visual{min-height:300px;margin-top:8px}
  .browser-card{width:94%;top:4%;left:0}
  .phone-card{width:28%;min-width:106px;right:1%;bottom:-3%;border-width:5px;border-radius:22px}
  .footer{padding:0 22px 26px;flex-direction:column;align-items:flex-start;gap:9px}
}
@media (max-width:520px){
  .brand-mark{width:30px;height:30px;border-radius:9px}
  .brand-name{font-size:12px}
  .nav-links a:first-child{display:none}
  .hero{padding-top:108px}
  .hero-name{font-size:clamp(3.45rem,16vw,5.1rem)}
  .hero-bottom{margin-top:8vh}
  .project-kicker{margin-bottom:12px}
  .project-copy h2{letter-spacing:-.07em}
}
@media (pointer:coarse){.cursor-light{display:none}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .eyebrow,.hero-bottom,.reveal,.footer{opacity:1;transform:none}
  .hero-name > span{opacity:1;transform:none}
  .hero-name .ray-text{clip-path:none;animation:none}
  .hero-name .pen{display:none}
}