:root{--ink:#173b35;--ink-soft:#42645c;--paper:#f5f0e7;--paper-deep:#e9e1d2;--cream:#fffdf8;--orange:#e7653d;--orange-dark:#bd4726;--line:rgba(23,59,53,.16);--shadow:0 20px 60px rgba(37,46,39,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;color:var(--ink);background:var(--paper);font-family:"PingFang HK","Noto Sans TC","Microsoft JhengHei",sans-serif;line-height:1.7;overflow-x:hidden}a{color:inherit}a:focus-visible{outline:3px solid var(--orange);outline-offset:5px;border-radius:4px}.skip-link{position:absolute;left:1rem;top:-4rem;z-index:10;padding:.65rem 1rem;color:#fff;background:var(--ink);border-radius:0 0 8px 8px}.skip-link:focus{top:0}.wrap{width:min(1160px,calc(100% - 40px));margin-inline:auto}
.topbar{border-bottom:1px solid var(--line);background:rgba(245,240,231,.88)}.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:2rem}.brand{display:inline-flex;align-items:center;gap:.7rem;text-decoration:none;font-size:.92rem;font-weight:800;letter-spacing:.04em}.brand-mark{display:grid;place-items:center;width:36px;height:36px;color:var(--paper);background:var(--ink);border-radius:50%;font-size:.78rem}.nav-links{display:flex;align-items:center;gap:1.45rem;margin:0;padding:0;list-style:none;font-size:.86rem;font-weight:700}.nav-links a{text-decoration:none;color:var(--ink-soft)}.nav-links a:hover,.nav-links a:focus-visible{color:var(--orange-dark)}.nav-home{color:var(--orange-dark)!important}
.hero{position:relative;padding:clamp(4.5rem,9vw,8.3rem) 0 6rem;isolation:isolate}.hero:before{content:"";position:absolute;z-index:-1;width:38rem;height:38rem;right:-17rem;top:0;border:1px solid rgba(231,101,61,.25);border-radius:50%;box-shadow:0 0 0 55px rgba(231,101,61,.06),0 0 0 110px rgba(231,101,61,.035)}.eyebrow{display:inline-flex;align-items:center;gap:.65rem;margin:0 0 1.3rem;color:var(--orange-dark);font-size:.8rem;font-weight:800;letter-spacing:.13em}.eyebrow:before{content:"";display:block;width:34px;height:2px;background:var(--orange)}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.18;text-wrap:balance}h1{max-width:680px;margin-bottom:1.5rem;font-size:clamp(3rem,4vw,6.6rem);letter-spacing:-.07em}.hero-copy{max-width:560px;color:var(--ink-soft);font-size:clamp(1.05rem,1.7vw,1.2rem)}.hero-actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2rem}.button{display:inline-flex;min-height:48px;align-items:center;justify-content:center;padding:.75rem 1.15rem;border:1px solid var(--ink);border-radius:999px;font-weight:800;font-size:.9rem;text-decoration:none;transition:background-color .2s ease,color .2s ease,transform .2s ease}.button:hover{transform:translateY(-2px)}.button-primary{color:#fff;background:var(--orange);border-color:var(--orange)}.button-primary:hover,.button-primary:focus-visible{background:var(--orange-dark)}.button-quiet:hover,.button-quiet:focus-visible{color:#fff;background:var(--ink)}.hero-banner{width:100%;margin:3.5rem 0 0;border-radius:4px;overflow:hidden;box-shadow:var(--shadow)}.hero-banner img{display:block;width:100%;height:auto;aspect-ratio:800/436;object-fit:cover}.hero-note{max-width:310px;margin:3.8rem 0 0 auto;padding:1.1rem 1.25rem;border-left:3px solid var(--orange);color:var(--ink-soft);background:rgba(255,253,248,.56);font-size:.88rem}
.section{padding:6.4rem 0}.section-tint{background:var(--cream)}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:2rem;margin-bottom:2.8rem}.section-heading h2{max-width:560px;margin-bottom:0;font-size:clamp(1.8rem,4.5vw,4.1rem);letter-spacing:-.06em}.section-intro{max-width:340px;margin-bottom:.2rem;color:var(--ink-soft);font-size:.98rem}.number{color:var(--orange);font-family:Georgia,serif;font-size:1.15rem;font-style:italic}
.diagnosis-grid{display:grid;grid-template-columns:1fr;gap:1.25rem}.symptom-list{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}.symptom-card{padding:1.65rem;background:var(--paper-deep);border:1px solid transparent}.symptom-card:hover{border-color:rgba(231,101,61,.45)}.symptom-card h3{margin:.9rem 0 .55rem;font-size:1.25rem}.symptom-card p{margin-bottom:0;color:var(--ink-soft);font-size:.9rem}.icon{display:grid;place-items:center;width:42px;height:42px;color:var(--orange-dark);border:1px solid currentColor;border-radius:50%;font-family:Georgia,serif;font-weight:700}.video-frame{width:100%;aspect-ratio:16/9;margin-bottom:1rem;border:0;background:#102d29}
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}.step{min-height:280px;padding:1.8rem 1.3rem 1rem 0;border-bottom:1px solid var(--line)}.step+.step{padding-left:1.3rem;border-left:1px solid var(--line)}.step-no{display:block;margin-bottom:3.8rem;color:var(--orange);font-family:Georgia,serif;font-size:1.7rem}.step h3{margin-bottom:.65rem;font-size:1.35rem}.step p{margin-bottom:0;color:var(--ink-soft);font-size:.9rem}.process-note{display:flex;justify-content:space-between;gap:2rem;margin-top:2.4rem;padding:1.25rem 1.4rem;background:var(--paper-deep);color:var(--ink-soft);font-size:.9rem}.process-note strong{color:var(--ink)}
.materials{display:grid;grid-template-columns:.8fr 1.2fr;gap:5rem;align-items:start}.materials h2{margin-bottom:1rem}.materials-lead{color:var(--ink-soft)}.material-list{margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}.material-list li{display:grid;grid-template-columns:1fr 1.15fr;gap:1rem;padding:1.15rem 0;border-bottom:1px solid var(--line)}.material-list strong{font-size:1.02rem}.material-list span{color:var(--ink-soft);font-size:.9rem}
.cta{padding:4.5rem 0;color:var(--paper);background:var(--orange)}.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:2rem}.cta h2{max-width:650px;margin-bottom:0;font-size:clamp(2rem,4vw,3.5rem);letter-spacing:-.05em}.cta .button{color:var(--orange-dark);background:var(--paper);border-color:var(--paper);flex-shrink:0}.cta .button:hover,.cta .button:focus-visible{color:var(--paper);background:var(--ink);border-color:var(--ink)}footer{padding:2rem 0;color:var(--ink-soft);font-size:.8rem}footer .wrap{display:flex;justify-content:space-between;gap:1rem}.backlink{text-decoration:none}.backlink:hover{color:var(--orange-dark)}
.project-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.25rem}.project-card{display:flex;min-height:270px;flex-direction:column;justify-content:space-between;padding:2rem;background:var(--cream);border:1px solid var(--line);text-decoration:none;transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease}.project-card:hover{border-color:var(--orange);transform:translateY(-4px);box-shadow:var(--shadow)}.project-card h3{margin:1rem 0 .6rem;font-size:1.65rem}.project-card p{margin-bottom:0;color:var(--ink-soft);font-size:.92rem}.project-arrow{align-self:flex-end;color:var(--orange);font-size:1.8rem;line-height:1}.page-hero{padding-bottom:4rem}.page-hero h1{font-size:clamp(3rem,4vw,6.6rem)}.page-hero .hero-copy{max-width:640px}.content-narrow{max-width:780px}.content-narrow h2{margin:2.8rem 0 1rem;font-size:clamp(2rem,4vw,3rem);letter-spacing:-.05em}.content-narrow p{color:var(--ink-soft)}.content-narrow ul{padding-left:1.2rem;color:var(--ink-soft)}.safety-note{margin-top:2.5rem;padding:1.25rem 1.4rem;border-left:3px solid var(--orange);background:var(--paper-deep);color:var(--ink-soft)}
.decoration-guide{display:block;width:100%;height:auto;aspect-ratio:800/436;object-fit:cover;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media (max-width:760px){.wrap{width:min(100% - 32px,560px)}.nav{min-height:66px}.nav-links{gap:.7rem;font-size:.76rem}.nav-links li:nth-child(2){display:none}.hero{padding-top:4rem}h1{font-size:clamp(3rem,4vw,6.6rem)}.hero-note{margin-top:2.5rem}.section{padding:4.5rem 0}.section-heading,.cta-inner{display:block}.section-intro{margin-top:1.2rem}.steps{grid-template-columns:1fr 1fr}.step{min-height:240px}.step:nth-child(odd){padding-left:0;border-left:0}.step:nth-child(even){padding-left:1rem;border-left:1px solid var(--line)}.process-note{display:block}.process-note strong{display:block;margin-bottom:.3rem}.materials{grid-template-columns:1fr;gap:2rem}.project-grid{grid-template-columns:1fr 1fr}.project-card{min-height:240px}.backlink{display:none}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button,.project-card{transition:none}.button:hover,.project-card:hover{transform:none}}
@media (max-width:760px){.hero{overflow-x:clip}}
#hero-title{font-size:clamp(1.5rem,2vw,3.3rem)}
@media (max-width:520px){.project-grid,.symptom-list,.steps{grid-template-columns:1fr}.steps .step{padding-left:0;border-left:0}}