.dpen-page .header{transition:background .3s}.dpen-page[data-scrolling-started=true] .header{-webkit-backdrop-filter:blur(16px);background:#050b1fbf}.dpen-page[data-scrolling-started=true] .header-bg{opacity:.5}.dpen-page{--dpen-bg:#050b1f;--dpen-bg-card:#0f1a3a;--dpen-accent:#1e9ce8;--dpen-accent-deep:#0073cf;--dpen-text:#e8f1ff;--dpen-text-dim:#a8b8d4;--dpen-border:#ffffff14;--dpen-font-display:"Outfit", "Noto Sans TC", sans-serif;--dpen-font-body:"Noto Sans TC", "Inter", sans-serif;--dpen-font-mono:"JetBrains Mono", monospace;background:var(--dpen-bg);color:var(--dpen-text);font-family:var(--dpen-font-body)}.dpen-container{width:70vw;max-width:70vw;margin:0 auto;padding:0}@media (width<=1024px){.dpen-container{width:auto;max-width:100%;padding:0 clamp(1.25rem,4vw,3rem)}}.dpen-page [data-reveal]{opacity:0;transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1);transform:translateY(32px)}.dpen-page [data-reveal].is-revealed{opacity:1;transform:translateY(0)}.dpen-hero{align-items:center;min-height:100dvh;padding-top:6rem;padding-bottom:4rem;display:flex;position:relative;overflow:hidden}.dpen-hero:before{content:"";pointer-events:none;background-image:linear-gradient(#ffffff05 1px,#0000 1px),linear-gradient(90deg,#ffffff05 1px,#0000 1px);background-size:60px 60px;position:absolute;inset:0}.dpen-hero:after{content:"";pointer-events:none;background:radial-gradient(#1e9ce82e 0%,#0000 70%);width:60%;height:80%;position:absolute;top:-10%;right:-10%}.dpen-hero__grid{z-index:1;grid-template-columns:1fr 1fr;align-items:center;gap:clamp(2rem,5vw,4rem);display:grid;position:relative}.dpen-hero__content{flex-direction:column;gap:1.25rem;display:flex}.dpen-breadcrumb{font-family:var(--dpen-font-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--dpen-text-dim);font-size:.95rem}.dpen-breadcrumb__sep{opacity:.4;margin:0 .5em}.dpen-hero__title{font-family:var(--dpen-font-display);letter-spacing:-.02em;color:var(--dpen-text);font-size:clamp(3.5rem,6.5vw,5.5rem);font-weight:700;line-height:1.1}.dpen-hero__subtitle{color:var(--dpen-text-dim);font-size:clamp(1.3rem,2vw,1.65rem);line-height:var(--leading-body)}.dpen-hero__tags{flex-wrap:wrap;gap:.5rem;margin-top:.5rem;display:flex}.dpen-tag{font-family:var(--dpen-font-mono);color:var(--dpen-accent);white-space:nowrap;background:#1e9ce80f;border:1px solid #1e9ce85c;border-radius:9999px;padding:.35em .85em;font-size:.95rem;text-decoration:none;transition:background .2s,border-color .2s}.dpen-tag:hover{background:#1e9ce82e;border-color:#1e9ce8b3}.dpen-hero__year{font-family:var(--dpen-font-mono);letter-spacing:.1em;color:var(--dpen-text-dim);opacity:.6;font-size:1rem}.dpen-hero__mockup{justify-content:center;align-items:center;display:flex}.dpen-mockup-frame{border:1px solid var(--dpen-border);background:var(--dpen-bg-card);border-radius:12px;width:100%;max-width:520px;overflow:hidden;box-shadow:0 25px 60px #00000080,0 0 60px #1e9ce81f}.dpen-mockup-bar{border-bottom:1px solid var(--dpen-border);background:#ffffff08;gap:6px;padding:12px 16px;display:flex}.dpen-dot{background:#ffffff1a;border-radius:50%;width:10px;height:10px}.dpen-mockup-screen{border-radius:6px;margin:12px;overflow:hidden}.dpen-mockup-img{width:100%;height:auto;display:block}.dpen-scroll-hint{flex-direction:column;align-items:center;gap:.5rem;animation:1.5s 1.2s both dpenFadeIn;display:flex;position:absolute;bottom:2rem;left:50%;transform:translate(-50%)}.dpen-scroll-hint span{font-family:var(--dpen-font-mono);text-transform:uppercase;letter-spacing:.15em;color:var(--dpen-text-dim);opacity:.5;font-size:.85rem}.dpen-scroll-line{background:var(--dpen-text-dim);opacity:.3;width:1px;height:2.5rem;animation:2s ease-in-out infinite dpenPulse}@keyframes dpenFadeIn{0%{opacity:0;transform:translate(-50%)translateY(8px)}to{opacity:1;transform:translate(-50%)translateY(0)}}@keyframes dpenPulse{0%,to{opacity:.3;transform:scaleY(1)}50%{opacity:.6;transform:scaleY(.5)}}.dpen-info-bar{border-top:1px solid var(--dpen-border);border-bottom:1px solid var(--dpen-border);background:#ffffff05;padding:1.5rem 0}.dpen-info-bar__inner{grid-template-columns:repeat(4,1fr);display:grid}.dpen-info-item{border-right:1px solid var(--dpen-border);flex-direction:column;gap:.35rem;padding:0 1.5rem;display:flex}.dpen-info-item:first-child{padding-left:0}.dpen-info-item:last-child{border-right:none;padding-right:0}.dpen-info-label{font-family:var(--dpen-font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--dpen-text-dim);opacity:.7;font-size:.85rem}.dpen-info-value{color:var(--dpen-text);font-size:1.1rem}.dpen-info-link{color:var(--dpen-accent);align-items:center;font-size:1.1rem;text-decoration:none;transition:color .2s;display:inline-flex}.dpen-info-link:hover{color:#5ec2ff}.dpen-tab-bar{border-bottom:1px solid var(--dpen-border);z-index:50;background:var(--dpen-bg);backdrop-filter:blur(12px);padding:1.25rem 0;position:sticky;top:3.5rem}.dpen-tab-bar__inner{justify-content:center;align-items:center;gap:1rem;display:flex}.dpen-tab-bar__nav{gap:.5rem;display:flex}.dpen-tab-btn{color:#ffffff80;cursor:pointer;background:0 0;border:1px solid #ffffff26;border-radius:9999px;padding:.55em 1.4em;font-family:inherit;font-size:1.05rem;transition:background .2s,color .2s,border-color .2s}.dpen-tab-btn:hover{color:#ffffffbf;border-color:#ffffff4d}.dpen-tab-btn.is-active{color:#111;background:#fff;border-color:#fff;font-weight:600}[data-dpen-panel]{display:none}[data-dpen-panel].is-active{display:block}@media (width<=479px){.dpen-tab-bar__inner{flex-direction:column;align-items:flex-start}}.dpen-section{padding:clamp(4rem,8vw,7rem) 0}.dpen-section-title{font-family:var(--dpen-font-display);color:var(--dpen-text);margin-bottom:1.5rem;padding-bottom:.75rem;font-size:clamp(2rem,3.5vw,2.75rem);font-weight:600;line-height:1.3;position:relative}.dpen-section-title:after{content:"";background:var(--dpen-accent);width:3rem;height:2px;position:absolute;bottom:0;left:0}.dpen-section-title--center{text-align:center}.dpen-section-title--center:after{left:50%;transform:translate(-50%)}.dpen-overview-grid{grid-template-columns:3fr 2fr;align-items:start;gap:clamp(3rem,6vw,5rem);display:grid}.dpen-overview-text p{font-size:clamp(1.15rem,1.5vw,1.35rem);line-height:var(--leading-body);color:var(--dpen-text-dim);margin-bottom:1.25rem}.dpen-overview-text p:last-child{margin-bottom:0}.dpen-overview-text strong{color:var(--dpen-text);font-weight:600}.dpen-stats-col{flex-direction:column;gap:1rem;display:flex;position:sticky;top:6rem}.dpen-stat{background:var(--dpen-bg-card);border:1px solid 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.45em;font-size:.95em}.dpen-tech-stack-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem;margin-top:.5rem;display:grid}.dpen-tech-cat{background:var(--dpen-bg-card);border:1px solid var(--dpen-border);border-radius:12px;padding:1.5rem}.dpen-tech-cat h4{font-family:var(--dpen-font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--dpen-accent);margin-bottom:.75rem;font-size:.9rem}.dpen-tech-cat ul{margin:0;padding:0;list-style:none}.dpen-tech-cat li{color:var(--dpen-text-dim);padding:.25em 0;font-size:1.05rem}.dpen-tech-cat li:before{content:">";color:#fff3;font-family:var(--dpen-font-mono);margin-right:.5em;font-size:.95em}@media (width<=767px){.dpen-tech-stack-grid{grid-template-columns:1fr}}.dpen-features-section{background:linear-gradient(#0000 0%,#0f1a3a80 20% 80%,#0000 100%)}.dpen-timeline{margin-top:3rem;padding-bottom:2rem;position:relative}.dpen-timeline__line{background:var(--dpen-border);width:1px;position:absolute;top:0;bottom:0;left:50%;transform:translate(-50%)}.dpen-timeline__line:after{content:"";background:linear-gradient(180deg, var(--dpen-accent), #1e9ce833);width:100%;height:0%;transition:height 1.8s cubic-bezier(.22,1,.36,1);position:absolute;top:0;left:0}.dpen-timeline__line.is-drawn:after{height:100%}.dpen-timeline__item{grid-template-columns:1fr auto 1fr;align-items:center;gap:2rem;margin-bottom:2.5rem;display:grid;position:relative}.dpen-timeline__item:last-child{margin-bottom:0}.dpen-timeline__dot{background:var(--dpen-bg);width:44px;height:44px;font-family:var(--dpen-font-mono);color:var(--dpen-accent);z-index:2;border:2px solid #1e9ce880;border-radius:50%;grid-column:2;justify-content:center;align-items:center;font-size:.9rem;font-weight:600;transition:border-color .3s,background .3s;display:flex}.dpen-timeline__item:hover 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var(--dpen-border);background:linear-gradient(135deg,#1e9ce81f,#050b1ff2);padding:clamp(4rem,8vw,6rem) 0}.dpen-cta__inner{text-align:center;max-width:600px;margin:0 auto}.dpen-cta__eyebrow{font-family:var(--dpen-font-mono);letter-spacing:.15em;text-transform:uppercase;color:var(--dpen-accent);margin-bottom:1rem;font-size:.9rem}.dpen-cta__title{font-family:var(--dpen-font-display);color:var(--dpen-text);margin-bottom:1rem;font-size:clamp(2.25rem,4vw,3.5rem);font-weight:700;line-height:1.2}.dpen-cta__desc{color:var(--dpen-text-dim);font-size:1.2rem;line-height:var(--leading-body);margin-bottom:2rem}.dpen-cta__btn{background:var(--dpen-accent);color:#fff;border-radius:9999px;align-items:center;padding:.85em 2.25em;font-size:1.15rem;font-weight:600;text-decoration:none;transition:transform .2s,box-shadow .2s;display:inline-flex}.dpen-cta__btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px #1e9ce873}.dpen-related{padding-bottom:clamp(4rem,8vw,7rem)}.dpen-related__grid{scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:1.5rem;margin-top:.5rem;padding-bottom:.5rem;display:flex;overflow-x:auto}.dpen-related__grid::-webkit-scrollbar{display:none}.dpen-related__card{scroll-snap-align:start;background:var(--dpen-bg-card);border:1px solid var(--dpen-border);min-width:280px;max-width:340px;color:inherit;border-radius:12px;flex:0 0 calc(33.333% - 1rem);text-decoration:none;transition:border-color .3s,transform .2s;overflow:hidden}.dpen-related__card:hover{border-color:#1e9ce873;transform:translateY(-4px)}.dpen-related__thumb{aspect-ratio:16/10;border-bottom:1px solid var(--dpen-border);font-family:var(--dpen-font-mono);color:var(--dpen-text-dim);background:linear-gradient(135deg,#1e9ce80f,#0f1a3a99);justify-content:center;align-items:center;font-size:1rem;display:flex}.dpen-related__meta{padding:1.25rem 1.5rem}.dpen-related__meta h3{font-family:var(--dpen-font-display);color:var(--dpen-text);margin-bottom:.35rem;font-size:1.25rem;font-weight:600}.dpen-related__meta p{color:var(--dpen-text-dim);font-size:1.05rem;line-height:var(--leading-body);margin:0}@media (width<=991px){.dpen-hero__grid{grid-template-columns:1fr;gap:3rem}.dpen-hero__content{text-align:center;align-items:center}.dpen-hero__tags{justify-content:center}.dpen-overview-grid{grid-template-columns:1fr;gap:3rem}.dpen-stats-col{flex-flow:wrap;position:static}.dpen-stat{flex:calc(50% - .5rem);min-width:0}.dpen-timeline__line{left:22px}.dpen-timeline__item{grid-template-columns:auto 1fr;gap:1.25rem}.dpen-timeline__item--left .dpen-timeline__card,.dpen-timeline__item--right .dpen-timeline__card{text-align:left;grid-area:1/2}.dpen-timeline__item--left .dpen-timeline__dot,.dpen-timeline__item--right .dpen-timeline__dot{grid-area:1/1}.dpen-related__card{flex:0 0 85%}}@media (width<=767px){.dpen-info-bar__inner{grid-template-columns:1fr 1fr;gap:1.25rem}.dpen-info-item{border-right:none;padding:0}.dpen-info-item:nth-child(odd){border-right:1px solid var(--dpen-border);padding-right:1rem}.dpen-info-item:nth-child(2n){padding-left:1rem}.dpen-stat{text-align:center;flex-direction:column;align-items:center;gap:.25rem}.dpen-stat__value{min-width:auto}.dpen-timeline__dot{width:36px;height:36px;font-size:.8rem}.dpen-timeline__card{padding:1.25rem 1.5rem}}@media (width<=479px){.dpen-info-bar__inner{grid-template-columns:1fr;gap:1rem}.dpen-info-item{border-bottom:1px solid var(--dpen-border);border-right:none!important;padding:0 0 .75rem!important}.dpen-info-item:last-child{border-bottom:none;padding-bottom:0!important}.dpen-stat{flex:100%}}