:root{--paper:#EEEAE0;--ink:#393B35;--olive:#7C806F;--clay:#A77258;--line:#D6D0C4;--tea:#8E9A72;--tea-d:#6F7B55;--card:#F4F1E9;
--serif:"Noto Serif TC",serif;--sans:"Noto Sans TC",system-ui,sans-serif;--e:cubic-bezier(.22,.61,.36,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:70px}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.9 var(--sans);letter-spacing:.02em;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--serif);margin:0;line-height:1.35}
.wrap{max-width:1120px;margin:0 auto;padding:0 32px}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;z-index:99;background:#fff;padding:6px 10px}
.tag{display:inline-block;font-size:.78rem;letter-spacing:.2em;color:var(--clay);border-top:1px solid var(--clay);padding-top:6px;margin-bottom:14px}
.sh{margin-bottom:40px}.sh h2{font-size:clamp(1.7rem,3vw,2.4rem);font-weight:600}.sh p{color:#5c5f55;max-width:36em;margin:12px 0 0}
.demo-note{font-size:.8rem;color:var(--olive);margin-top:20px}

/* bar */
.bar{background:linear-gradient(rgba(30,32,28,.55),rgba(30,32,28,0));position:fixed;inset:0 0 auto;z-index:30;display:flex;align-items:center;gap:28px;padding:16px 32px;color:var(--paper);transition:background .6s var(--e),color .6s,box-shadow .6s}
.bar.solid{background:rgba(238,234,224,.94);color:var(--ink);box-shadow:0 1px 0 var(--line);backdrop-filter:blur(8px)}
.logo{font-family:var(--serif);font-weight:900;font-size:1.35rem;letter-spacing:.08em}
.logo span{font:400 .72rem var(--sans);letter-spacing:.2em;margin-left:8px;opacity:.75}
.bar nav{display:flex;gap:2px;margin-left:auto}
.bar nav a{font-size:.88rem;padding:6px 11px;border-radius:6px;opacity:.9;transition:background .4s}
.bar nav a:hover{background:rgba(142,154,114,.25)}
.bar nav{margin-left:auto}.bar-cta{font-size:.85rem;padding:7px 16px;border:1px solid currentColor;border-radius:99px;white-space:nowrap}
.burger{display:none;background:none;border:0;width:40px;height:40px;position:relative;color:inherit;cursor:pointer}
.burger i{position:absolute;left:9px;right:9px;height:1.5px;background:currentColor;transition:transform .4s}
.burger i:first-child{top:15px}.burger i:last-child{top:24px}
.open .burger i:first-child{transform:translateY(4.5px) rotate(45deg)}.open .burger i:last-child{transform:translateY(-4.5px) rotate(-45deg)}

/* hero */
.hero{position:relative;min-height:min(100vh,860px);display:flex;align-items:center;color:var(--paper);overflow:hidden;background:#2b2d29}
.hero-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:38% 30%}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(43,45,41,.88) 0%,rgba(43,45,41,.6) 40%,rgba(43,45,41,0) 68%)}
.hero-in{position:relative;z-index:2;padding:120px 32px 90px max(32px,calc((100vw - 1120px)/2 + 32px));max-width:720px}
.kicker{font-size:.9rem;letter-spacing:.16em;color:#cfd4bf;margin:0 0 20px}
.hero h1{font-size:clamp(2.5rem,5.6vw,4.6rem);font-weight:900;letter-spacing:.05em;line-height:1.25}
.hero mark{background:none;color:#E2B49A;position:relative;display:inline-block}
.hero mark svg{position:absolute;left:-3%;bottom:-.15em;width:106%;height:.38em;overflow:visible}
.hero mark path{fill:none;stroke:var(--tea);stroke-width:6;stroke-linecap:round;stroke-dasharray:340;stroke-dashoffset:340;animation:draw 1.8s .8s var(--e) forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.sub{font-size:1.05rem;max-width:26em;margin:28px 0 34px;color:#e4e0d5}
.row{display:flex;gap:12px;flex-wrap:wrap}
.b{display:inline-block;padding:13px 26px;border-radius:4px;font-size:.95rem;font-weight:500;transition:transform .5s var(--e),background .4s,color .4s}
.b:hover{transform:translateY(-2px)}
.b-light{background:var(--paper);color:var(--ink)}.b-light:hover{background:#fff}
.b-line{border:1px solid currentColor}.b-line:hover{background:rgba(238,234,224,.12)}
.b-tea{background:var(--tea);color:#fff}.b-tea:hover{background:var(--tea-d)}
.scroll{position:absolute;z-index:2;bottom:24px;left:50%;transform:translateX(-50%);font-size:.75rem;letter-spacing:.3em;writing-mode:vertical-rl;opacity:.7;padding-bottom:44px}
.scroll::after{content:"";position:absolute;bottom:0;left:50%;width:1px;height:36px;background:currentColor;animation:drip 3s ease-in-out infinite}
@keyframes drip{0%,100%{transform:scaleY(.3);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}}

.fl{position:absolute;fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;pointer-events:none;z-index:2}
.fl-1{width:80px;left:44%;top:22%;stroke:#cfd4bf;opacity:.5;animation:float 9s ease-in-out infinite}
.fl-2{width:110px;right:8%;top:30px;stroke:var(--paper);opacity:.3;animation:float 10s ease-in-out infinite reverse}
@keyframes float{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-12px) rotate(4deg)}}

/* doubts */
.doubts{padding-top:64px;padding-bottom:64px}
.doubts-h{font-family:var(--serif);color:var(--olive);margin:0 0 20px}
.doubts ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
.doubts li{padding:24px 24px 8px 0;border-right:1px solid var(--line);margin-right:24px}
.doubts li:last-child{border:0;margin:0}
.doubts b{display:block;font-family:var(--serif);font-size:1.15rem;margin-bottom:6px}
.doubts span{color:#5c5f55;font-size:.95rem}

/* start path */
.start{background:var(--ink);color:var(--paper);padding:96px 0;position:relative}
.start .tag{color:#E2B49A;border-color:#E2B49A}.start .sh p{color:#cbc7bb}
.stages{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;counter-reset:x}
.stage{background:rgba(238,234,224,.05);border:1px solid rgba(214,208,196,.18);border-radius:10px;padding:28px 26px;position:relative}
.stage:not(:last-child)::after{content:"→";position:absolute;right:-22px;top:34px;color:var(--tea)}
.st-h{display:flex;align-items:baseline;gap:10px;padding-bottom:14px;margin-bottom:12px;border-bottom:1px dashed rgba(214,208,196,.3)}
.st-h span{font-size:.75rem;color:var(--tea);letter-spacing:.15em}.st-h h3{font-size:1.4rem}.st-h small{margin-left:auto;color:#a9a597;font-size:.8rem}
.stage ol{margin:0;padding-left:1.9em;font-size:.95rem}
.stage li{padding:5px 0}.stage li::marker{color:#E2B49A;font-family:var(--serif)}
.stage a{background:linear-gradient(var(--tea),var(--tea)) 0 100%/0 1px no-repeat;transition:background-size .6s var(--e)}
.stage a:hover{background-size:100% 1px}
.start .demo-note{color:#a9a597}

/* topics index */
.topics{padding-top:96px;padding-bottom:96px}
.idx{list-style:none;margin:0;padding:0;border-top:1px solid var(--ink)}
.idx a{display:grid;grid-template-columns:70px 1fr 1fr 24px;align-items:center;gap:20px;padding:22px 8px;border-bottom:1px solid var(--line);transition:background .5s var(--e),padding .5s var(--e)}
.idx a::after{content:"↗";color:var(--clay);transition:transform .5s var(--e)}
.idx a:hover{background:var(--card);padding-left:18px}.idx a:hover::after{transform:translate(3px,-3px)}
.idx em{font-style:normal;font-family:var(--serif);color:var(--clay);font-size:1.1rem}
.idx b{font-family:var(--serif);font-size:1.3rem;font-weight:600}
.idx span{color:#5c5f55;font-size:.95rem}

/* posts */
.posts{background:#E6E1D5;padding:96px 0}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:-16px 0 30px}
.chips button{font:inherit;font-size:.88rem;padding:6px 16px;border:1px solid var(--olive);border-radius:99px;background:none;color:var(--ink);cursor:pointer;transition:background .4s,color .4s}
.chips button.on,.chips button:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post{background:var(--card);border-radius:10px;transition:transform .6s var(--e),box-shadow .6s var(--e)}
.post[hidden]{display:none}
.post a{display:flex;flex-direction:column;height:100%;padding:26px}
.post:hover{transform:translateY(-4px);box-shadow:0 18px 30px -22px rgba(57,59,53,.55)}
.cat{font-size:.75rem;color:var(--tea-d);letter-spacing:.1em}
.post h3{font-size:1.15rem;font-weight:600;margin:10px 0 auto;padding-bottom:18px}
.post p{color:#5c5f55;font-size:.95rem;margin:0 0 18px}
.post small{color:var(--olive);font-size:.8rem}
.feat{grid-row:span 2;background:var(--clay);color:#fff}
.feat .cat,.feat small,.feat p{color:#f3e4da}.feat h3{font-size:1.6rem;margin-top:auto}

/* about */
.about{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;padding-top:110px;padding-bottom:96px;align-items:start;scroll-margin-top:88px}
.about-photo{position:sticky;top:100px}
.about-photo img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;object-position:75% 35%;border-radius:10px 80px 10px 10px}
.sign{font-family:var(--serif);text-align:right;color:var(--olive);margin:12px 8px 0}
.about-body h2{font-size:clamp(1.6rem,2.6vw,2.2rem);font-weight:600;margin-bottom:22px}
.about-body>p{margin:0 0 16px}
.cred{margin:30px 0;border-top:1px solid var(--line)}
.cred div{display:grid;grid-template-columns:70px 1fr;padding:12px 0;border-bottom:1px solid var(--line)}
.cred dt{color:var(--clay);font-size:.85rem}.cred dd{margin:0;font-size:.95rem}
.promise{background:var(--card);border-left:3px solid var(--tea);padding:22px 26px;border-radius:0 10px 10px 0}
.promise h3{font-size:1.05rem}.promise ul{margin:10px 0 0;padding-left:1.2em;color:#5c5f55}
.promise li::marker{content:"✕  ";color:var(--clay)}

/* faq */
.faq{padding-bottom:96px}.faq details{max-width:820px}
details{border-bottom:1px solid var(--line);padding:4px 0}
summary{cursor:pointer;list-style:none;font-family:var(--serif);font-size:1.12rem;padding:18px 36px 18px 0;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:6px;top:14px;font-size:1.4rem;color:var(--clay);transition:transform .4s}
details[open] summary::after{transform:rotate(45deg)}
details p{margin:0 0 20px;color:#5c5f55}

/* cta */
.cta{position:relative;background:var(--tea-d);color:var(--paper);padding:100px 0;overflow:hidden}
.cta-in{text-align:center}.cta h2{font-size:clamp(1.8rem,3.4vw,2.8rem);font-weight:600}
.cta p{margin:18px auto 32px;color:#e7e6da}.cta .row{justify-content:center}
.cta .b-tea{background:var(--paper);color:var(--ink)}.cta .b-tea:hover{background:#fff}
.ph{font-size:.8rem;opacity:.8;margin-top:22px!important}

.foot{background:#2b2d29;color:#bdb9ad;padding:56px 0 40px;font-size:.85rem}
.foot-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;color:var(--paper)}
.foot p{line-height:1.9;max-width:60em}

/* reveal */
.rv{opacity:0;transform:translateY(20px);transition:opacity 1.2s var(--e),transform 1.2s var(--e)}
.rv.in{opacity:1;transform:none}
.doubts li:nth-child(2),.stage:nth-child(2),.post:nth-child(2){transition-delay:.1s}
.doubts li:nth-child(3),.stage:nth-child(3),.post:nth-child(3){transition-delay:.2s}

@media (max-width:1180px){.bar nav a{padding:6px 7px;font-size:.84rem}.bar{gap:16px}}
@media (max-width:980px){
  .bar nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--paper);color:var(--ink);padding:12px 24px 18px;box-shadow:0 10px 20px -12px rgba(0,0,0,.2)}
  .bar.open nav{display:flex}.bar.open{background:var(--paper);color:var(--ink)}
  .burger{display:block}.bar-cta{margin-left:auto}
  .stages{grid-template-columns:1fr}.stage:not(:last-child)::after{content:"↓";right:auto;left:30px;top:auto;bottom:-26px}
  .grid{grid-template-columns:1fr 1fr}.feat{grid-row:auto;grid-column:span 2}
  .about{grid-template-columns:1fr;gap:36px}.about-photo{position:static;max-width:360px}
}
@media (max-width:640px){
  body{font-size:16px}.wrap{padding-left:20px;padding-right:20px}.doubts{padding-top:48px;padding-bottom:48px}.faq{padding-bottom:72px}
  .bar{padding:12px 16px;gap:10px}.bar nav{margin-left:auto}.bar-cta{font-size:.78rem;padding:5px 12px}
  .hero{min-height:auto;flex-direction:column;align-items:stretch;background:#2b2d29}
  .hero-bg img{position:relative;height:auto;aspect-ratio:4/3;object-position:52% 30%}
  .hero::after{display:none}
  .hero-bg{position:relative;display:block}.hero-bg::after{content:"";position:absolute;inset:auto 0 0;height:40%;background:linear-gradient(transparent,#2b2d29)}
  .hero-in{padding:20px 20px 56px}
  .scroll,.fl-1{display:none}
  .doubts ul{grid-template-columns:1fr}.doubts li{border-right:0;border-bottom:1px solid var(--line);margin:0;padding:18px 0}
  .start,.posts{padding:72px 0}.topics{padding-top:72px;padding-bottom:72px}
  .idx a{grid-template-columns:44px 1fr 20px;gap:4px 12px;padding:18px 4px}
  .idx span{grid-column:2;grid-row:2}.idx a::after{grid-row:1/3;grid-column:3}
  .idx b{font-size:1.1rem}
  .grid{grid-template-columns:1fr}.feat{grid-column:auto}
  .about{padding-top:72px}.about-photo{max-width:240px}
  .cta{padding:72px 0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .hero mark path{stroke-dashoffset:0}.rv{opacity:1;transform:none}
}