:root{
  --green:#087a2d;
  --green-dark:#04571f;
  --green-soft:#eaf7ee;
  --green-pale:#f5faf7;
  --ink:#142019;
  --muted:#637168;
  --line:#dfe8e2;
  --white:#ffffff;
  --shadow:0 15px 38px rgba(18,72,37,.09);
  --radius:22px;
  --max:1320px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:#fff;color:var(--ink);
  font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",Arial,sans-serif;
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.topbar{background:var(--green-dark);color:#fff;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding:7px 0}
.version-bar{
  background:#fff8d9;color:#6a5100;text-align:center;font-size:12px;font-weight:800;
  padding:5px 12px;border-bottom:1px solid #eadc9c
}
header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line)
}
.header-main{min-height:86px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;min-width:210px}
.brand img{width:62px;height:62px;object-fit:contain;border-radius:12px}
.brand strong{display:block;color:#174761;font-size:27px;line-height:1.1}
.brand small{display:block;color:#174761;font-size:12px;font-weight:800;letter-spacing:.17em;margin-top:3px}
.header-actions{display:flex;align-items:center;gap:18px}
.phone{font-weight:900;color:var(--green-dark);white-space:nowrap}
.phone small{display:block;color:#748178;font-size:12px;font-weight:500}
.nav-wrap{border-top:1px solid #f0f4f1}
.nav{display:flex;justify-content:center;gap:23px;overflow:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{padding:15px 0;font-size:14px;font-weight:800;white-space:nowrap;position:relative}
.nav a:hover,.nav a.active{color:var(--green)}
.nav a:hover:after,.nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--green)}
.menu{display:none;border:0;background:var(--green-soft);color:var(--green);padding:9px 12px;border-radius:10px;font-size:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:999px;font-weight:900;border:1.5px solid transparent;transition:.2s}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-dark);transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--green);border-color:var(--green)}
.btn-outline:hover{background:var(--green-soft)}
.eyebrow{color:var(--green);font-size:14px;font-weight:900;letter-spacing:.18em}
.hero{background:linear-gradient(90deg,#f7f8f7 0 43%,#fff 43%)}
.hero-grid{display:grid;grid-template-columns:43% 57%;align-items:stretch}
.hero-copy{padding:66px 40px 66px 0;display:flex;flex-direction:column;justify-content:center}
.hero h1{font-size:clamp(42px,4.6vw,64px);line-height:1.16;margin:16px 0 18px;letter-spacing:-.02em}
.hero h1 span{display:block;color:var(--green)}
.hero p{font-size:18px;color:#34463b;margin:0;max-width:620px}
.hero-features{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:28px}
.hero-feature{display:flex;gap:9px;align-items:center;min-width:0}
.hero-feature i{width:38px;height:38px;flex:0 0 38px;border-radius:50%;display:grid;place-items:center;background:var(--green-soft);color:var(--green);font-style:normal;font-weight:900}
.hero-feature b{display:block;color:var(--green-dark);font-size:14px}
.hero-feature small{display:block;color:var(--muted);font-size:12px}
.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-media{position:relative;display:flex;align-items:center;justify-content:center;background:#fff;min-height:560px;overflow:hidden}
.hero-media>img{width:100%;height:auto;max-height:560px;object-fit:contain;object-position:center}
.hero-card{position:absolute;right:26px;top:44px;width:250px;padding:21px;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
.hero-card h3{margin:0 0 10px;font-size:18px;color:var(--green-dark)}
.hero-card ul{list-style:none;padding:0;margin:0 0 16px}
.hero-card li{padding:5px 0;font-size:14px}
.hero-card li:before{content:"✓";color:var(--green);font-weight:900;margin-right:8px}
.section{padding:80px 0}
.section.alt{background:var(--green-pale)}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:32px}
.section-head h2,.page-hero h1{font-size:42px;line-height:1.25;margin:0;letter-spacing:-.015em}
.section-head p{color:var(--muted);max-width:700px;margin:8px 0 0}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:0 8px 22px rgba(0,0,0,.035);min-width:0}
.card h3{font-size:22px;line-height:1.35;margin:0 0 10px}
.card p{color:var(--muted);margin:0}
.service{text-align:center}
.service .icon{font-size:38px;margin-bottom:12px}
.process{position:relative;overflow:hidden}
.process .num{position:absolute;right:17px;top:1px;color:#dff0e4;font-size:52px;font-weight:900}
.process .icon{font-size:34px;margin-bottom:10px}
.notice{display:flex;gap:14px;align-items:flex-start;background:linear-gradient(90deg,#ebf7ee,#f7fbf8);border:1px solid #d9eadf;border-left:4px solid var(--green);border-radius:15px;padding:18px 20px;color:#275c37}
.notice strong{color:var(--green-dark)}
.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;min-width:0}
.case-photo{position:relative;background:#f2f6f3;aspect-ratio:12/7;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:0}
.case-photo img{width:100%;height:100%;object-fit:contain;object-position:center}
.case-label{position:absolute;left:15px;top:15px;background:var(--green);color:#fff;padding:6px 11px;border-radius:9px;font-size:13px;font-weight:900}
.case-body{padding:23px;display:flex;flex-direction:column;flex:1}
.tags{min-height:31px}
.tag{display:inline-block;background:var(--green-soft);color:var(--green);border-radius:999px;padding:5px 9px;font-size:12px;font-weight:900;margin-right:5px}
.case-body h3{font-size:23px;line-height:1.35;margin:8px 0 9px}
.case-body>p{color:var(--muted);margin:0;min-height:62px}
.case-bottom{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;border-top:1px solid var(--line);padding-top:17px;margin-top:auto}
.case-focus span{display:block;color:#748178;font-size:12px;font-weight:800}
.case-focus b{display:block;color:var(--green);font-size:18px}
.text-link{color:var(--green);font-weight:900;white-space:nowrap}
.about{display:grid;grid-template-columns:1fr 1.05fr;gap:50px;align-items:center}
.media-frame{background:#f2f6f3;border-radius:24px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.media-frame img{width:100%;height:auto;max-height:430px;object-fit:contain}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:24px}
.stat{border:1px solid var(--line);border-radius:14px;padding:16px;background:#fff}
.stat b{display:block;color:var(--green);font-size:19px}
.page-hero{padding:70px 0;background:linear-gradient(135deg,#edf8f0,#fff);border-bottom:1px solid var(--line)}
.breadcrumb{font-size:13px;color:var(--green);font-weight:900;margin-bottom:9px}
.page-hero p{font-size:18px;color:var(--muted);max-width:830px;margin:12px 0 0}
.content-photo{width:100%;height:auto;max-height:440px;object-fit:contain;background:#f2f6f3;border-radius:22px}
.article{max-width:900px;margin:auto}
.article h2{font-size:30px;margin:34px 0 10px}
.article p,.article li{color:#506057}
.article-cover{width:100%;height:auto;max-height:460px;object-fit:contain;background:#f2f6f3;border-radius:22px}
.blog-cover{width:100%;height:auto;aspect-ratio:12/7;object-fit:contain;background:#f2f6f3;border-radius:14px;margin-bottom:16px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:17px 20px;margin-bottom:12px}
.faq summary{font-weight:900;cursor:pointer}
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:28px}
.contact-panel{background:var(--green-dark);color:#fff;border-radius:22px;padding:30px}
.contact-panel p{color:#d7eadc}
.form{display:grid;gap:14px}
.form input,.form select,.form textarea{width:100%;padding:13px 14px;border:1px solid #d6e1d9;border-radius:11px;background:#fff}
.form textarea{min-height:145px;resize:vertical}
.cta{background:linear-gradient(135deg,var(--green-dark),var(--green));border-radius:28px;padding:42px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px}
.cta h2{font-size:36px;line-height:1.3;margin:0 0 7px}
.cta p{color:#d8eadc;margin:0}
.floating{position:fixed;right:18px;bottom:18px;z-index:90;display:grid;gap:10px}
.floating a{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:#fff;box-shadow:var(--shadow);font-size:21px}
footer{background:#063b18;color:#fff;padding:52px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.25fr .75fr .75fr;gap:34px}
footer p,footer a{color:#d0e4d5}
.copy{border-top:1px solid rgba(255,255,255,.15);padding-top:17px;margin-top:30px;color:#b6cbbd;font-size:12px}
.version-stamp{display:inline-block;margin-top:12px;background:#0b8f37;color:#fff;padding:4px 9px;border-radius:999px;font-size:11px;font-weight:900}
@media(max-width:1100px){
  .header-actions{display:none}.menu{display:block}.nav-wrap{display:none}.nav-wrap.open{display:block}
  .nav{flex-direction:column;align-items:stretch;gap:0;padding:10px 20px}
  .hero-grid{grid-template-columns:1fr}.hero{background:#f7f8f7}.hero-copy{padding:50px 0}
  .hero-media{min-height:auto}.hero-media>img{max-height:none}.hero-card{top:24px}
  .hero-features{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}.about{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  .topbar{display:none}.header-main{min-height:74px}.brand img{width:52px;height:52px}.brand strong{font-size:22px}
  .hero-copy{padding:42px 0}.hero h1{font-size:40px}.hero-features{grid-template-columns:1fr 1fr}.hero-card{display:none}
  .section{padding:58px 0}.section-head{display:block}.section-head h2,.page-hero h1{font-size:34px}.section-head .btn{margin-top:16px}
  .grid-2,.grid-3,.grid-4,.case-grid,.contact-grid,.footer-grid{grid-template-columns:1fr}
  .case-body>p{min-height:auto}.stats{grid-template-columns:1fr 1fr}.cta{display:block;padding:30px}.cta .actions{margin-top:20px}
}
@media(max-width:480px){
  .container{width:min(var(--max),calc(100% - 26px))}.hero-features,.stats{grid-template-columns:1fr}.actions{display:grid}.btn{width:100%}
}

/* V4.1 image safety rules: never crop photos */
.hero-media,
.case-photo,
.media-frame {
  background:#f4f8f5;
}
.hero-media > img,
.case-photo img,
.media-frame img,
.content-photo,
.article-cover,
.blog-cover {
  width:100%;
  height:auto !important;
  max-height:none !important;
  object-fit:contain !important;
  object-position:center !important;
}
.case-photo {
  aspect-ratio:auto !important;
  min-height:280px;
  padding:0;
}
.case-photo img {
  max-height:340px !important;
}
.blog-cover {
  aspect-ratio:auto !important;
  min-height:220px;
}
@media(max-width:760px){
  .case-photo{min-height:220px}
  .case-photo img{max-height:280px !important}
}

/* ===== V5 Phase 1 visual upgrade ===== */
:root{
  --green:#0a7f31;
  --green-dark:#075724;
  --green-soft:#ebf7ee;
  --green-pale:#f6fbf7;
  --ink:#132018;
  --muted:#65746b;
  --line:#dfe9e2;
  --shadow:0 18px 46px rgba(17,72,37,.10);
}
.version-bar{background:#e9f8ee;color:#0a6d2b;border-bottom:1px solid #cfe7d6}
.hero{background:linear-gradient(90deg,#f8faf8 0 44%,#fff 44%)}
.hero-card{right:24px;top:36px}
.card,.case-card{transition:transform .22s ease,box-shadow .22s ease}
.card:hover,.case-card:hover{transform:translateY(-4px);box-shadow:0 22px 44px rgba(20,75,40,.12)}
.section-head h2,.page-hero h1{font-weight:900}
.hero h1{font-weight:900}
.hero-copy p{max-width:650px}
.service .icon,.process .icon{filter:saturate(.85)}
.home-proof{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;
  margin-top:24px
}
.home-proof .proof{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px
}
.home-proof .proof b{display:block;color:var(--green);font-size:18px}
.home-proof .proof span{color:var(--muted);font-size:13px}
.section-divider{
  height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);
  margin:0 auto;width:min(1100px,80%)
}
@media(max-width:760px){
  .home-proof{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
  .home-proof{grid-template-columns:1fr}
}