/* Layout: B2B agency site. Arched frames echo calm interiors; brushed white wall with champagne accents.
   Single light theme on purpose: a brand site that should look the same for every visitor. */
:root{
  color-scheme: light;
  --paper:#FBFAF7;      /* painted white wall */
  --band:#F4EEE4;       /* light champagne band */
  --gold:#B0905F;       /* champagne gold accent */
  --ink:#3B342D;        /* warm charcoal ink */
  --muted:#6E655B;      /* secondary text */
  --soft:#E2D1B3;       /* soft champagne */
  --gold-ink:#8E6C3E;   /* deep champagne, for text */
  --line:#E6DDCF;
  --white:#FFFFFF;
  --deep:#4A4037;       /* espresso band */
  --deep-text:#E9E1D4;
  --deep-muted:#CDBFAC;
  --f-display:"Noto Serif TC","Songti TC","PMingLiU",serif;
  --f-body:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;
  --f-latin:"Playfair Display","Didot",Georgia,serif;
  --wrap:1160px;
  --brush:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='600' height='600'%3E%3Cfilter id='b'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.006 0.09' numOctaves='3' seed='7'/%3E%3CfeColorMatrix values='0 0 0 0 0.55 0 0 0 0 0.48 0 0 0 0 0.38 0 0 0 0.055 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23b)'/%3E%3C/svg%3E");
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper) var(--brush);color:var(--ink);font-family:var(--f-body);font-size:17px;line-height:1.85;letter-spacing:.02em}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--f-display);font-weight:600;line-height:1.4;margin:0;text-wrap:balance;letter-spacing:.04em}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(20px, env(safe-area-inset-left, 0px));padding-right:max(20px, env(safe-area-inset-right, 0px))}
.band{padding-block:clamp(64px,9vw,112px)}
.band.alt{background:var(--band) var(--brush)}
.eyebrow{font-family:var(--f-latin);font-style:italic;font-size:1.05rem;color:var(--gold);letter-spacing:.03em;display:block;margin-bottom:10px}
.lead{color:var(--muted);max-width:38em}
.section-head{display:grid;gap:14px;margin-bottom:clamp(36px,5vw,52px);max-width:42em}
.section-head h2{font-size:clamp(1.6rem,3.2vw,2.3rem)}
.nw{white-space:nowrap}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 26px;border-radius:999px;font-weight:500;text-decoration:none;font-size:.98rem;transition:transform .2s ease, background .2s ease;border:0;font-family:inherit;cursor:pointer}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--ink);color:var(--white)}
.btn-primary:hover{background:#5A4E43}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--white)}
.text-link{color:var(--gold-ink);font-weight:500;text-decoration:none;border-bottom:1px solid var(--soft)}
.text-link:hover{border-color:var(--gold-ink)}

/* Header */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--paper)}
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:rgba(251,250,247,.93);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px;position:relative}
.logo{text-decoration:none;display:flex;flex-direction:column;line-height:1.1}
.logo b{font-family:var(--f-latin);font-style:italic;font-weight:500;font-size:1.55rem;letter-spacing:.01em}
.logo small{font-size:.62rem;letter-spacing:.28em;color:var(--muted);margin-top:5px;white-space:nowrap}
.menu{display:flex;gap:26px;list-style:none;margin:0;padding:0;font-size:.95rem}
.menu a{text-decoration:none;color:var(--ink);padding-block:6px;border-bottom:1px solid transparent}
.menu a:hover{border-color:var(--gold)}
.nav .btn{padding:10px 20px;font-size:.92rem}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font:inherit;font-size:.9rem;color:var(--ink);cursor:pointer}

/* Hero */
.hero{padding-block:clamp(40px,6vw,76px) clamp(48px,7vw,88px)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,6vw,80px);align-items:center}
.hero .tagline{font-family:var(--f-latin);font-style:italic;font-size:clamp(1.05rem,1.8vw,1.25rem);color:var(--gold-ink);margin-bottom:18px;display:block}
.hero h1{font-size:clamp(1.9rem,4.2vw,3.05rem);line-height:1.4;margin-bottom:22px}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero p.lead{margin-bottom:32px;font-size:1.05rem}
.actions{display:flex;flex-wrap:wrap;gap:14px}
.arch{border-radius:999px 999px 18px 18px;overflow:hidden;background:var(--band);aspect-ratio:4/5;max-width:100%}
.arch img{width:100%;height:100%;object-fit:cover}
.hero-visual{position:relative;max-width:450px;justify-self:end;width:100%}
.hero-visual .arch{box-shadow:0 30px 60px -30px rgba(74,64,55,.35)}
.hero-visual::before{content:"";position:absolute;inset:auto auto -22px -22px;width:58%;aspect-ratio:1;border-radius:50%;background:var(--soft);opacity:.7;z-index:-1}
.hero-note{position:absolute;left:-28px;bottom:36px;background:var(--white);padding:14px 20px;border-radius:14px;box-shadow:0 12px 30px -12px rgba(74,64,55,.25);font-size:.86rem;line-height:1.6;max-width:230px}
.hero-note strong{display:block;font-family:var(--f-display);font-size:1rem}

/* Audience paths */
.paths{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:clamp(40px,6vw,64px)}
.path{display:grid;gap:6px;padding:20px 22px;background:var(--white);border:1px solid var(--line);border-radius:16px;text-decoration:none;transition:border-color .2s ease}
.path:hover{border-color:var(--gold)}
.path span{font-size:.82rem;color:var(--gold-ink);letter-spacing:.1em}
.path b{font-family:var(--f-display);font-size:1.12rem;font-weight:600}
.path p{font-size:.9rem;color:var(--muted);line-height:1.7}
.consumer-note{margin-top:18px;font-size:.92rem;color:var(--muted)}

/* Product lines */
.lines{display:grid;gap:clamp(48px,7vw,88px)}
.line{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(28px,5vw,64px);align-items:center}
.line:nth-child(even){grid-template-columns:1.2fr .8fr}
.line:nth-child(even) .line-photo{order:2}
.line-photo{max-width:280px;width:100%;justify-self:center}
.line-photo .arch{aspect-ratio:4/5}
.line-body{display:grid;gap:18px;min-width:0}
.line-body .tag{font-size:.8rem;letter-spacing:.16em;color:var(--gold-ink)}
.line-body h3{font-size:clamp(1.45rem,2.6vw,1.9rem)}
.line-body > p{color:var(--muted)}
.sub{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.sub-item{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:18px 20px;display:grid;gap:6px;align-content:start}
.sub-item b{font-family:var(--f-display);font-size:1.02rem}
.sub-item small{font-size:.8rem;color:var(--gold-ink);letter-spacing:.06em}
.sub-item p{font-size:.9rem;color:var(--muted);line-height:1.7}
.sub.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.chip{display:inline-block;font-size:.76rem;letter-spacing:.08em;padding:2px 10px;border-radius:999px;background:var(--band);color:var(--gold-ink);justify-self:start}

/* Partners */
.partners{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2.5vw,28px)}
.partner{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:30px 28px;display:grid;gap:14px;align-content:start}
.partner .who{font-family:var(--f-latin);font-style:italic;color:var(--gold);font-size:1rem}
.partner h3{font-size:1.3rem}
.partner ul{margin:0;padding:0;list-style:none;display:grid;gap:10px;font-size:.94rem;color:var(--muted)}
.partner li{display:flex;gap:10px;line-height:1.7}
.partner li::before{content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--gold);margin-top:.7em}

/* Strengths */
.strengths{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(18px,2.5vw,32px)}
.strength{display:grid;gap:10px;align-content:start;padding-top:20px;border-top:1px solid var(--ink)}
.strength h3{font-size:1.1rem}
.strength p{color:var(--muted);font-size:.93rem}

/* Clinics */
.clinic-tools{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.filter{font:inherit;font-size:.9rem;padding:7px 16px;border-radius:999px;border:1px solid var(--line);background:var(--white);color:var(--ink);cursor:pointer}
.filter[aria-pressed="true"]{background:var(--ink);color:var(--white);border-color:var(--ink)}
.clinic-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.clinic{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:22px;display:grid;gap:6px}
.clinic b{font-family:var(--f-display);font-size:1.08rem}
.clinic span{font-size:.88rem;color:var(--muted)}
.empty{border:1px dashed var(--soft);border-radius:20px;padding:clamp(28px,5vw,48px);display:grid;gap:14px;justify-items:start;background:rgba(255,255,255,.6)}
.empty h3{font-size:1.25rem}
.empty p{color:var(--muted);max-width:40em}
.clinic-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.clinic-steps div{display:grid;gap:6px}
.clinic-steps b{font-family:var(--f-display);font-size:1.02rem}
.clinic-steps p{font-size:.92rem;color:var(--muted)}
.clinic-steps .n{font-family:var(--f-latin);font-style:italic;color:var(--gold);font-size:1.6rem;line-height:1}

/* Seminars */
.seminar-table{overflow-x:auto;border:1px solid var(--line);border-radius:18px;background:var(--white)}
table{width:100%;border-collapse:collapse;min-width:720px;font-size:.95rem}
th,td{text-align:left;padding:16px 20px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-weight:500;font-size:.82rem;letter-spacing:.12em;color:var(--gold-ink);background:var(--band)}
tr:last-child td{border-bottom:0}
td b{font-family:var(--f-display);font-weight:600;display:block}
td small{color:var(--muted);font-size:.86rem}
.status{display:inline-block;font-size:.8rem;padding:2px 10px;border-radius:999px;background:var(--band);color:var(--gold-ink);white-space:nowrap}
.seminar-foot{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;margin-top:22px}
.seminar-foot p{color:var(--muted);font-size:.94rem;max-width:40em}

/* About */
.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,80px);align-items:center}
.about-text{display:grid;gap:18px}
.about-text p{color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:6px}
.stat{border-top:1px solid var(--line);padding-top:14px}
.stat b{display:block;font-family:var(--f-latin);font-style:italic;font-weight:500;font-size:2rem;color:var(--gold);line-height:1.2;font-variant-numeric:tabular-nums}
.stat span{font-size:.86rem;color:var(--muted)}
.team{display:grid;gap:12px;margin-top:6px}
.member{display:grid;grid-template-columns:120px 1fr;gap:14px;font-size:.92rem;padding-bottom:12px;border-bottom:1px solid var(--line)}
.member b{font-family:var(--f-display);font-weight:600}
.member span{color:var(--muted)}
.about .room{border-radius:20px;overflow:hidden;aspect-ratio:4/5;max-width:440px;justify-self:center}
.about .room img{width:100%;height:100%;object-fit:cover}

/* Contact */
.contact-box{background:var(--deep);color:var(--white);border-radius:28px;padding:clamp(32px,6vw,64px);display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(28px,5vw,56px);align-items:center}
.contact-box .eyebrow{color:var(--soft)}
.contact-box h2{font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:14px}
.contact-box p{color:var(--deep-muted)}
.channels{display:grid;gap:12px}
.channel{border:1px solid rgba(233,225,212,.25);border-radius:14px;padding:16px 20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.channel b{font-family:var(--f-display);font-weight:600;color:var(--deep-text)}
.channel span{color:var(--deep-muted);font-size:.92rem}

/* Footer */
footer{color:var(--muted);font-size:.86rem;line-height:1.8;border-top:1px solid var(--line)}
footer .wrap{padding-block:40px calc(40px + env(safe-area-inset-bottom,0px));display:flex;flex-wrap:wrap;gap:18px 40px;justify-content:space-between}
footer p.note{max-width:46em}

/* Responsive */
@media (max-width:1020px){
  .menu{display:none}
  .menu-toggle{display:inline-block}
  .menu.open{display:grid;position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:1px solid var(--line);padding:12px max(20px, env(safe-area-inset-right,0px)) 20px max(20px, env(safe-area-inset-left,0px));gap:4px}
  .nav .btn{display:none}
  .strengths{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .hero-grid,.line,.line:nth-child(even),.about,.contact-box{grid-template-columns:1fr}
  .line:nth-child(even) .line-photo{order:0}
  .line-photo{max-width:220px}
  .hero-visual{justify-self:center;max-width:360px}
  .hero-note{left:-8px}
  .paths,.partners,.clinic-list,.clinic-steps{grid-template-columns:1fr}
  .sub.three{grid-template-columns:1fr}
}
@media (max-width:540px){
  body{font-size:16px}
  .sub,.strengths{grid-template-columns:1fr}
  .member{grid-template-columns:1fr;gap:2px}
  .stat b{font-size:1.6rem}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}

/* ---- Multi-page additions ---- */
.nav-right{display:flex;align-items:center;gap:12px}
.lang{font-size:.85rem;text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:6px 14px;color:var(--ink);white-space:nowrap}
.lang:hover{border-color:var(--gold)}
.menu a[aria-current="page"]{border-color:var(--gold);color:var(--gold-ink)}
.page-hero{padding-block:clamp(48px,7vw,92px) clamp(28px,4vw,44px)}
.page-hero h1{font-size:clamp(1.9rem,4vw,2.8rem);margin-bottom:16px}
.page-hero .lead{font-size:1.05rem}
.page-hero + .band{padding-top:clamp(24px,4vw,40px)}
.line-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,32px)}
.lcard{display:grid;gap:14px;align-content:start;text-decoration:none}
.lcard .arch{aspect-ratio:1/1;max-width:240px}
.lcard .tag{font-size:.78rem;letter-spacing:.16em;color:var(--gold-ink)}
.lcard h3{font-size:1.3rem}
.lcard p{color:var(--muted);font-size:.95rem}
.lcard .more{color:var(--gold-ink);font-weight:500;font-size:.94rem}
.lcard:hover .more{text-decoration:underline}
.teasers{display:grid;grid-template-columns:1fr 1fr;gap:clamp(18px,2.5vw,28px)}
.teaser{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:clamp(26px,4vw,40px);display:grid;gap:14px;align-content:start;justify-items:start}
.teaser h3{font-size:1.4rem}
.teaser p{color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.steps.four{grid-template-columns:repeat(4,1fr)}
.steps div{display:grid;gap:6px;align-content:start}
.steps b{font-family:var(--f-display);font-size:1.02rem}
.steps p{font-size:.92rem;color:var(--muted)}
.steps .n{font-family:var(--f-latin);font-style:italic;color:var(--gold);font-size:1.6rem;line-height:1}
.philo{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(32px,6vw,80px);align-items:center}
.philo .room{border-radius:20px;overflow:hidden;aspect-ratio:4/3.4}
.philo .room img{width:100%;height:100%;object-fit:cover}
.philo-text{display:grid;gap:18px}
.philo-text h2{font-size:clamp(1.6rem,3.2vw,2.3rem)}
.philo-text p{color:var(--muted)}
.quote{font-family:var(--f-display);font-size:1.15rem;color:var(--ink);padding-left:20px;border-left:2px solid var(--soft)}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,3vw,36px)}
.pillar{display:grid;gap:10px;align-content:start;padding-top:22px;border-top:1px solid var(--ink)}
.pillar .en{font-family:var(--f-latin);font-style:italic;color:var(--gold);font-size:1rem}
.pillar h3{font-size:1.3rem}
.pillar p{color:var(--muted);font-size:.96rem}
.inquiry{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:clamp(28px,4vw,40px)}
.inquiry div{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:20px;display:grid;gap:6px;align-content:start}
.inquiry b{font-family:var(--f-display)}
.inquiry span{font-size:.9rem;color:var(--muted)}
.footer-nav{display:flex;flex-wrap:wrap;gap:8px 20px;list-style:none;margin:0;padding:0}
.footer-nav a{text-decoration:none}
.footer-nav a:hover{color:var(--ink)}

/* English pages */
html[lang="en"] body{letter-spacing:.005em;line-height:1.75}
html[lang="en"] h1,html[lang="en"] h2,html[lang="en"] h3{font-family:"Playfair Display",Georgia,serif;font-weight:500;letter-spacing:0}
html[lang="en"] .hero h1{line-height:1.2}
html[lang="en"] .page-hero h1{line-height:1.25}

@media (max-width:1020px){
  .steps.four{grid-template-columns:repeat(2,1fr)}
  .inquiry{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .line-cards,.teasers,.philo,.pillars,.steps{grid-template-columns:1fr}
  .line-cards{max-width:420px}
}
@media (max-width:540px){
  .steps.four,.inquiry{grid-template-columns:1fr}
  .lang{padding:6px 10px}
  .logo small{letter-spacing:.14em;font-size:.56rem}
}

/* ---- Concerns, brands ---- */
.focus-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.focus-row span{font-size:.82rem;color:var(--gold-ink);letter-spacing:.08em;margin-right:4px}
.focus-row em{font-style:normal;font-size:.84rem;padding:3px 12px;border-radius:999px;background:var(--white);border:1px solid var(--line)}
.concerns{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.concern{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:18px 20px;display:grid;gap:10px;align-content:start}
.concern b{font-family:var(--f-display);font-weight:600;font-size:1.02rem}
.concern div{display:flex;flex-wrap:wrap;gap:6px}
.concern a,.line-tag{font-size:.78rem;padding:2px 10px;border-radius:999px;background:var(--band);color:var(--gold-ink);text-decoration:none;white-space:nowrap}
.concern a:hover{background:var(--soft)}
.teasers.three{grid-template-columns:repeat(3,1fr)}
.brand-lines{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px}
.brand-lines span{font-size:.86rem;color:var(--muted);margin-right:4px}
.brand-lines em{font-style:normal;font-size:.86rem;padding:5px 14px;border-radius:999px;border:1px solid var(--line);background:var(--white)}
.brand-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.brand-card{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:26px;display:grid;gap:8px;align-content:start;text-decoration:none;transition:border-color .2s ease}
.brand-card:hover{border-color:var(--gold)}
.brand-card .line-tag{justify-self:start}
.brand-card b{font-family:var(--f-display);font-size:1.25rem}
.brand-card small{color:var(--muted);font-size:.86rem}
.brand-card p{color:var(--muted);font-size:.94rem}
.brand-card .more{color:var(--gold-ink);font-weight:500;font-size:.92rem}
.brand-hero{display:grid;grid-template-columns:180px 1fr;gap:clamp(24px,4vw,48px);align-items:start}
.brand-logo{aspect-ratio:1;border-radius:50%;border:1px dashed var(--soft);display:grid;place-items:center;text-align:center;color:var(--muted);font-size:.9rem;background:var(--white)}
.text-link.back{justify-self:start;font-size:.9rem}
@media (max-width:1020px){.concerns{grid-template-columns:repeat(2,1fr)}.teasers.three{grid-template-columns:1fr}}
@media (max-width:860px){.brand-list{grid-template-columns:1fr}.brand-hero{grid-template-columns:1fr}.brand-logo{width:120px}}
@media (max-width:540px){.concerns{grid-template-columns:1fr}}