:root{--bg:#101112;--panel:#181a1c;--panel2:#202326;--text:#f4f3ef;--muted:#a5a8ab;--line:rgba(255,255,255,.12);--accent:#d9ff38;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:84px}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}button,a{ -webkit-tap-highlight-color:transparent}.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}.eyebrow{display:flex;align-items:center;gap:10px;color:var(--accent);font-size:.75rem;font-weight:800;letter-spacing:.17em;text-transform:uppercase}.eyebrow:before{content:"";width:25px;height:2px;background:var(--accent)}.section{padding:96px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}.section-head h2{font-size:clamp(2rem,4vw,3.3rem);line-height:1.08;letter-spacing:-.04em;margin:12px 0 0}.section-head p{color:var(--muted);max-width:420px;margin:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:50px;padding:0 21px;font-size:.9rem;font-weight:800;border:1px solid var(--line);transition:.2s}.btn-primary{background:var(--accent);color:#111;border-color:var(--accent)}.btn-primary:hover{background:#e8ff85;transform:translateY(-2px)}.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}.arrow{font-size:1.1rem}
header{height:78px;position:sticky;top:0;z-index:10;background:rgba(16,17,18,.88);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;min-width:230px}.brand-mark{width:38px;height:38px;border:1px solid var(--accent);display:grid;place-items:center;color:var(--accent);font-weight:950;font-style:italic;transform:skew(-8deg)}.brand-name{font-weight:900;letter-spacing:.06em;font-size:.93rem;line-height:1.25}.brand-name small{display:block;color:var(--muted);font-size:.65rem;letter-spacing:.2em;margin-top:3px}.nav-links{display:flex;gap:27px;color:#d0d1d1;font-size:.82rem}.nav-links a:hover{color:var(--accent)}.nav .btn{min-height:42px;padding:0 15px;font-size:.8rem}
.hero{min-height:690px;display:flex;align-items:center;position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:radial-gradient(ellipse at 78% 42%,rgba(217,255,56,.11),transparent 28%),linear-gradient(115deg,#101112 0%,#151719 48%,#25292b 100%)}.hero:after{content:"R-P";position:absolute;right:-.03em;bottom:-.25em;font-size:clamp(14rem,35vw,33rem);font-weight:1000;line-height:1;color:rgba(255,255,255,.025);letter-spacing:-.1em;pointer-events:none}.hero-grid{display:grid;grid-template-columns:1fr .9fr;gap:36px;align-items:center;position:relative;z-index:1;padding:70px 0}.hero h1{font-size:clamp(3rem,6.4vw,6.1rem);line-height:.98;letter-spacing:-.065em;margin:22px 0}.hero h1 span{color:var(--accent);display:block}.hero-copy{font-size:1.03rem;color:#c1c4c5;max-width:520px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.hero-meta{display:flex;gap:24px;flex-wrap:wrap;margin-top:44px;color:var(--muted);font-size:.76rem}.hero-meta strong{display:block;color:var(--text);font-size:.9rem;margin-bottom:2px}.bike-art{min-height:390px;position:relative;display:grid;place-items:center}.bike-art img{width:120%;max-width:none;position:relative;z-index:1;filter:drop-shadow(0 35px 40px rgba(0,0,0,.6));mix-blend-mode:screen;mask-image:linear-gradient(90deg,transparent 0%,black 15%,black 85%,transparent 100%)}.art-label{position:absolute;right:0;bottom:7%;z-index:2;border-left:2px solid var(--accent);padding:10px 14px;background:rgba(16,17,18,.75);font-size:.72rem;letter-spacing:.14em;color:#d9dadd}.vertical-label{position:absolute;right:8px;top:12%;writing-mode:vertical-rl;letter-spacing:.22em;color:#7f8588;font-size:.68rem}
.ticker{border-bottom:1px solid var(--line);overflow:hidden;background:var(--accent);color:#111}.ticker-inner{display:flex;justify-content:space-around;gap:26px;padding:14px 0;font-size:.75rem;font-weight:950;letter-spacing:.14em;white-space:nowrap}.ticker span:after{content:"✳";margin-left:28px}
.services{background:#141617}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.service-card{min-height:270px;background:var(--panel);border:1px solid var(--line);padding:28px;position:relative;overflow:hidden;transition:.25s}.service-card:hover{border-color:rgba(217,255,56,.55);transform:translateY(-4px)}.service-no{font-size:.72rem;color:var(--accent);letter-spacing:.14em}.service-icon{width:44px;height:44px;border:1px solid var(--line);display:grid;place-items:center;margin:28px 0 20px;color:var(--accent);font-size:1.2rem}.service-card h3{font-size:1.25rem;margin:0 0 9px}.service-card p{font-size:.88rem;color:var(--muted);margin:0;max-width:330px}.service-card:after{content:attr(data-mark);position:absolute;right:12px;bottom:-35px;font-size:8rem;font-weight:1000;color:rgba(255,255,255,.025);line-height:1}
.about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}.about-visual{min-height:460px;position:relative;background:linear-gradient(145deg,#2a2d2e,#101112);overflow:hidden;border:1px solid var(--line)}.about-visual img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;opacity:.72;filter:grayscale(.5)}.about-visual:after{content:"RIDE / MAINTAIN / REFINE";position:absolute;left:20px;bottom:18px;font-size:.72rem;font-weight:900;letter-spacing:.15em;background:var(--accent);color:#111;padding:9px 12px}.about-content h2{font-size:clamp(2.2rem,4vw,3.8rem);line-height:1.08;letter-spacing:-.05em;margin:16px 0 22px}.about-content h2 em{font-style:normal;color:var(--accent)}.about-content p{color:var(--muted)}.principles{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:30px}.principle{border-top:1px solid var(--line);padding-top:14px}.principle b{display:block;font-size:.92rem}.principle span{font-size:.78rem;color:var(--muted)}
.cases{background:#141617}.case-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:14px}.case{background:var(--panel);border:1px solid var(--line);min-height:320px;display:flex;flex-direction:column}.case-image{height:220px;overflow:hidden;background:#25282a}.case-image img{width:100%;height:100%;object-fit:cover;filter:grayscale(.2);transition:transform .4s}.case:hover img{transform:scale(1.04)}.case-info{padding:19px}.case-info small{color:var(--accent);font-size:.7rem;letter-spacing:.12em;font-weight:800}.case-info h3{font-size:1rem;margin:7px 0}.case-info p{font-size:.8rem;color:var(--muted);margin:0}.case-note{margin-top:18px;font-size:.78rem;color:var(--muted)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:35px}.process{padding:22px 20px 22px 0;border-top:1px solid var(--line);position:relative}.process:not(:last-child){margin-right:20px}.process-num{color:var(--accent);font-size:.73rem;font-weight:900;letter-spacing:.12em}.process h3{font-size:1rem;margin:18px 0 8px}.process p{font-size:.82rem;color:var(--muted);margin:0}
.cta{padding:70px 0;background:var(--accent);color:#111}.cta-grid{display:flex;justify-content:space-between;align-items:center;gap:30px}.cta .eyebrow{color:#20250d}.cta .eyebrow:before{background:#20250d}.cta h2{font-size:clamp(2.2rem,5vw,4.2rem);line-height:1.03;letter-spacing:-.055em;margin:15px 0 10px}.cta p{margin:0;color:#343a20}.cta .btn{background:#111;color:white;border-color:#111;white-space:nowrap}.cta .btn:hover{background:#333}.line-contact{display:flex;align-items:center;gap:18px;background:#fff;color:#111;padding:14px;border-radius:4px;max-width:330px}.line-qr{width:112px;height:112px;flex-shrink:0;display:block;object-fit:contain}.line-details{font-size:.82rem;line-height:1.6}.line-details strong{display:block;font-size:1rem;margin-bottom:4px}.line-details a{display:inline-block;margin-top:8px;background:#00c755;color:#fff;padding:7px 12px;font-weight:800}
footer{padding:46px 0 24px;background:#0c0d0e}.footer-top{display:flex;justify-content:space-between;gap:35px;padding-bottom:35px;border-bottom:1px solid var(--line)}.footer-desc{color:var(--muted);font-size:.83rem;max-width:330px;margin-top:15px}.footer-links{display:flex;gap:35px;flex-wrap:wrap}.footer-links div{min-width:120px}.footer-links b{font-size:.78rem;display:block;margin-bottom:12px}.footer-links a,.footer-links span{display:block;font-size:.78rem;color:var(--muted);margin:7px 0}.footer-bottom{display:flex;justify-content:space-between;gap:20px;color:#73787a;font-size:.7rem;padding-top:20px}.mobile-cta{display:none}
@media(max-width:850px){.nav-links{display:none}.hero{min-height:auto}.hero-grid{grid-template-columns:1fr;gap:0;padding:72px 0 35px}.hero h1{font-size:clamp(3.4rem,12vw,5.6rem)}.hero-copy{max-width:600px}.bike-art{min-height:270px;margin-top:10px}.bike-art img{width:110%;max-width:650px}.vertical-label{right:4%;top:8%}.art-label{right:4%;bottom:4%}.section{padding:72px 0}.section-head{display:block}.section-head p{margin-top:18px}.service-grid{grid-template-columns:1fr 1fr}.about-grid{grid-template-columns:1fr;gap:35px}.about-visual{min-height:350px}.case-grid{grid-template-columns:1fr 1fr}.case:first-child{grid-column:span 2}.process-grid{grid-template-columns:1fr 1fr;gap:20px}.process:not(:last-child){margin-right:0}.cta-grid{align-items:flex-start;flex-direction:column}.footer-top{flex-direction:column}.footer-links{gap:24px}}
@media(max-width:520px){.wrap{width:calc(100% - 32px)}header{height:68px}.brand{min-width:0}.brand-name{font-size:.8rem}.nav .btn{min-height:39px;padding:0 11px;font-size:.72rem}.hero-grid{padding-top:55px}.hero h1{font-size:3.4rem}.hero-copy{font-size:.92rem}.hero-meta{gap:18px;margin-top:32px}.bike-art{min-height:220px;margin-left:-10px;margin-right:-10px}.section{padding:58px 0}.section-head h2{font-size:2.3rem}.service-grid{grid-template-columns:1fr}.service-card{min-height:220px;padding:23px}.service-icon{margin:20px 0 14px}.about-visual{min-height:280px}.principles{gap:12px}.case-grid{grid-template-columns:1fr}.case:first-child{grid-column:auto}.case-image{height:220px}.process-grid{grid-template-columns:1fr 1fr}.process{padding-top:16px}.cta{padding:52px 0}.footer-links{display:grid;grid-template-columns:1fr 1fr;width:100%}.footer-bottom{flex-direction:column;gap:7px}.mobile-cta{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:20;padding:9px 12px calc(9px + env(safe-area-inset-bottom));background:rgba(12,13,14,.94);backdrop-filter:blur(12px);border-top:1px solid var(--line);gap:9px}.mobile-cta a{flex:1;min-height:44px;display:grid;place-items:center;font-size:.83rem;font-weight:850}.mobile-cta .m-line{background:var(--accent);color:#111}.mobile-cta .m-call{border:1px solid var(--line)}body{padding-bottom:68px}}
/* Premium monochrome finish */
:root{--accent:#b8bdc2}
.eyebrow{color:#c8cdd1}.eyebrow:before{background:#aeb4b9}
.btn-primary{background:linear-gradient(135deg,#e2e4e6,#969da3);color:#111;border-color:#c6cbd0}
.btn-primary:hover{background:#f1f2f3}
.hero{background:radial-gradient(ellipse at 78% 42%,rgba(190,197,203,.12),transparent 30%),linear-gradient(115deg,#0c0d0e 0%,#17191b 48%,#303438 100%)}
.ticker{background:linear-gradient(90deg,#858c92,#d5d8db,#858c92);color:#111}
.service-card:hover{border-color:rgba(205,211,216,.6)}
.cta{background:linear-gradient(120deg,#24272a,#44494e 55%,#25282b);color:#f4f3ef;border-top:1px solid #555b60;border-bottom:1px solid #555b60}
.cta .eyebrow{color:#d5d9dd}.cta .eyebrow:before{background:#d5d9dd}.cta p{color:#c4c8cb}
.cta .btn{background:#111;color:white;border-color:#111}.cta .btn:hover{background:#333}
.mobile-cta .m-line{background:linear-gradient(135deg,#d8dbde,#a2a8ae);color:#111}
.case-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:850px){.case-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.case-grid{grid-template-columns:1fr}}
.skip-link{position:fixed;top:12px;left:12px;z-index:100;padding:12px 16px;background:#fff;color:#111;transform:translateY(-160%);border:2px solid #111}
.skip-link:focus{transform:translateY(0)}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}