:root{--navy:#0b2938;--green:#b6d67c;--muted:#647674;--paper:#f4f6f0;--line:#d4ded6}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;color:var(--navy);background:#fff;font-family:Arial,'Noto Sans TC','Microsoft JhengHei',sans-serif}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;color:inherit}
img{display:block;max-width:100%}

.announcement{text-align:center;background:var(--navy);color:#fff;font-size:11px;letter-spacing:2px;padding:11px}
header{height:90px;display:flex;align-items:center;justify-content:space-between;padding:0 5%;background:#fff;position:sticky;top:0;z-index:10;border-bottom:1px solid #e8ece8}
.brand{font-size:24px;font-weight:900;letter-spacing:-1px}
.brand small{display:block;font-size:10px;letter-spacing:3px;margin-top:4px;font-weight:500}
/* 頁首logo: 英文置中在中文下方(字距會在最後一個字後面多留3px, 用負右邊距抵掉) */
header .brand{text-align:center}
header .brand small{margin-right:-3px}
nav{display:flex;gap:24px;font-size:13px}
nav a.on{color:#4f7a2a;box-shadow:0 2px 0 #8cbf4a}
nav a:hover,.menu-panel a:hover{color:#4f7a2a}
.navcta{border:1px solid #163b40;padding:12px 19px;font-size:12px;transition:.3s}
.navcta:hover{background:var(--navy);color:#fff}
.menu{display:none}
.menu-panel{display:none}

/* 首屏 */
.hero{position:relative;min-height:640px;height:78vh;max-height:880px;overflow:hidden;background:var(--navy);color:#fff;display:flex;align-items:center}
.hero-img{position:absolute;top:0;right:0;bottom:0;width:58%;background:url('../img/hero.jpg') center 40%/cover}
.hero-img:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,var(--navy) 0%,rgba(11,41,56,.55) 30%,rgba(11,41,56,.05) 70%)}
.hero-copy{position:relative;padding:60px 8%;width:100%}
.eyebrow{font-size:11px;letter-spacing:3px;text-transform:uppercase;display:block;margin-bottom:25px}
.hero h1{font-size:clamp(36px,4.6vw,68px);line-height:1.2;letter-spacing:1px;margin:0 0 24px;font-weight:600}
.hero h1 em{font-style:normal;color:var(--green)}
.hero h1.big{font-size:clamp(44px,6.2vw,96px);line-height:1.15}
.hero p{font-size:15px;line-height:2;color:#dbe4df;margin:0 0 35px}
.button{display:inline-flex;align-items:center;justify-content:space-between;gap:35px;background:var(--green);color:var(--navy);padding:18px 26px;border:0;font-size:13px;transition:.3s}
.button:hover{filter:brightness(1.06);transform:translateY(-1px)}
.button.outline{background:transparent;border:1px solid #b3c5c0;color:#fff;margin-left:12px}
.hero-bottom{position:absolute;bottom:30px;left:8%;right:5%;display:flex;justify-content:space-between;font-size:10px;letter-spacing:2px}

.intro{display:flex;justify-content:space-between;align-items:center;padding:32px 8%;background:var(--paper);gap:20px}
.intro p{margin:0;font-size:13px;line-height:1.8}
.intro strong{font-size:18px}
.stats{display:flex;gap:46px}
.stats div{text-align:center}
.stats b{display:block;font-size:24px;font-weight:600}
.stats small{font-size:11px;color:var(--muted);letter-spacing:1px}

/* 通用區塊 */
.section{padding:100px 8%}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:44px}
.section-heading .eyebrow{color:var(--muted);margin-bottom:14px}
.section h2{font-size:38px;line-height:1.4;margin:0;font-weight:600}
.section-heading p{margin:0;font-size:13px;line-height:2;color:var(--muted);text-align:right}

/* 01 薄膜科技 */
.tech{display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:center}
.film-scene{background:radial-gradient(ellipse at 70% 20%,#dbe4ce,transparent 55%),#eef2ea;position:relative;padding:40px 30px 50px}
.film-scene img{mix-blend-mode:multiply;margin:auto}
.film-label{position:absolute;bottom:20px;left:25px;font-size:10px;letter-spacing:2px;color:#5d7469}
.tech h3{font-size:28px;font-weight:500;line-height:1.6;margin:0 0 18px}
.tech p{font-size:14px;line-height:2;color:var(--muted)}
.features{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:30px}
.feature{border-top:1px solid #cdd9d1;padding-top:18px}
.feature b{font-weight:500;font-size:17px}
.feature small{display:block;color:var(--muted);margin-top:8px;font-size:12px;line-height:1.7}

.compare{margin-top:80px;display:grid;grid-template-columns:1fr auto 1fr;border:1px solid var(--line)}
.compare>div{padding:16px 24px;border-bottom:1px solid var(--line);font-size:14px;display:flex;align-items:center}
.compare .old{color:var(--muted);justify-content:flex-end;text-align:right}
.compare .key{background:var(--paper);justify-content:center;font-size:12px;letter-spacing:2px;min-width:120px}
.compare .new{font-weight:600}
.compare .new:before{content:'';width:8px;height:8px;border-radius:50%;background:var(--green);margin-right:12px;flex:none}
.compare .head{font-size:15px;font-weight:600;background:#fff;padding:22px 24px}
.compare .head.new{background:var(--navy);color:#fff}
.compare .head.new:before{display:none}
.compare .head small{display:block;font-weight:400;font-size:11px;color:var(--muted);margin-top:4px;letter-spacing:1px}
.compare .head.new small{color:#b9c8c5}
.compare>div:nth-last-child(-n+3){border-bottom:0}

/* 02 產品特色 */
.feat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.nw{white-space:nowrap}
.feat-card{background:var(--paper);overflow:hidden}
.feat-card img{width:100%;aspect-ratio:2/1;object-fit:cover;transition:.6s}
.feat-card:hover img{transform:scale(1.04)}
.feat-card div{padding:16px 16px 20px}
.feat-card small{font-size:10px;letter-spacing:2px;color:var(--muted)}
.feat-card h3{font-size:16px;font-weight:600;margin:8px 0 6px}
.feat-card p{font-size:12px;color:var(--muted);margin:0;line-height:1.7}

/* 03 日常情境 */
.life{background:var(--paper)}
.lifestyle-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.life-card{height:250px;position:relative;overflow:hidden;background:#234c4c;color:#fff}
.life-card img{width:100%;height:100%;object-fit:cover;transition:.6s}
.life-card:hover img{transform:scale(1.04)}
.life-card:after{content:'';position:absolute;inset:0;background:linear-gradient(transparent 35%,#082c3be0)}
.life-card div{position:absolute;bottom:26px;left:24px;right:20px;z-index:1}
.life-card small{font-size:10px;letter-spacing:2px}
.life-card h3{font-size:22px;font-weight:500;margin:10px 0}
.life-card p{font-size:12px;line-height:1.8;margin:0}

/* 04 成分 */
.herbs{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.herb-list{margin-top:0}
.herb:last-child{border-bottom:1px solid var(--line)}
.herb{display:grid;grid-template-columns:90px 1fr;border-top:1px solid var(--line);padding:18px 0;gap:12px}
.herb b{font-size:17px;font-weight:600}
.herb span{font-size:13px;color:var(--muted);line-height:1.8}
.herbs p{font-size:14px;line-height:2;color:var(--muted)}
.herbs h3{font-size:28px;font-weight:500;line-height:1.6;margin:0 0 12px}

/* 05 商品 */
.products{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.product-art{height:420px;background:#f0f3ed;display:grid;place-items:center;position:relative;overflow:hidden}
.product-art img{max-height:360px;width:auto;mix-blend-mode:multiply;transform:rotate(-4deg);transition:.6s}
.product-art.six img{transform:rotate(4deg)}
.product-art:hover img{transform:rotate(0) scale(1.02)}
.product-info{padding:24px 0;display:flex;justify-content:space-between;gap:12px}
.product-info h3{font-size:20px;font-weight:500;margin:0 0 10px}
.product-info p{font-size:12px;color:var(--muted);margin:0;line-height:1.8}
.price{text-align:right;white-space:nowrap}
.price b{font-size:22px;font-weight:500}
.price small{display:block;font-size:10px;color:var(--muted);margin-bottom:7px}
.text-link{font-size:13px;background:none;border:0;border-bottom:1px solid;padding:0 0 6px}
.spec{margin-top:50px;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.spec div{padding:22px 20px;border-left:1px solid var(--line)}
.spec div:first-child{border-left:0}
.spec small{display:block;font-size:10px;letter-spacing:2px;color:var(--muted);margin-bottom:8px}
.spec b{font-size:15px;font-weight:500}

/* 06 使用方式 */
.guide{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px;background:var(--navy);color:#fff}
.guide .eyebrow{color:var(--green)}
.guide p{color:#b9c8c5;font-size:13px;line-height:2}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.step{border-top:1px solid #54716f;padding-top:22px}
.step span{color:var(--green);font-size:12px}
.step strong{display:block;font-size:54px;font-weight:600;line-height:1;margin:22px 0 4px;color:#fff}
.step h3{font-size:17px;font-weight:500;margin:14px 0 12px}

/* 07 品質認證 */
.quality-top{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-bottom:30px}
.q-card{border:1px solid var(--line);padding:28px 30px;display:flex;flex-direction:column}
.q-body{flex:1;display:flex;flex-direction:column;justify-content:center}
.q-labels{display:grid;text-align:center;font-size:12px;line-height:1.6;color:var(--muted);margin-top:14px;gap:8px}
.q-labels b{display:block;color:var(--navy);font-weight:500}
.q-labels em{font-style:normal;color:#c0392b}
.q-card small{font-size:10px;letter-spacing:2px;color:var(--muted)}
.q-card h3{font-size:18px;font-weight:600;margin:8px 0 18px}
.q-card img{width:100%}
.tests{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;align-items:center;background:var(--paper);padding:40px}
.tests h3{font-size:26px;font-weight:500;line-height:1.6;margin:0 0 14px}
.tests p{font-size:14px;line-height:2;color:var(--muted)}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tags span{border:1px solid #c3d1c5;padding:7px 12px;font-size:12px;background:#fff}

/* 企業訂購 */
.order{background:var(--paper)}
.order-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:o}
.order-step{background:#fff;padding:30px 28px;border-top:3px solid var(--green)}
.order-step span{font-size:11px;letter-spacing:2px;color:#4f7a2a}
.order-step h3{font-size:19px;font-weight:600;margin:12px 0 10px}
.order-step p{font-size:13px;line-height:1.9;color:var(--muted);margin:0}
.order-cta{display:grid;grid-template-columns:1.4fr 1fr;gap:20px;margin-top:20px}
.order-box{background:var(--navy);color:#fff;padding:34px 36px;display:flex;justify-content:space-between;align-items:center;gap:24px}
.order-box h3{font-size:22px;font-weight:500;margin:0 0 8px}
.order-box p{font-size:13px;line-height:1.9;color:#b9c8c5;margin:0}
.order-box.light{background:#fff;color:var(--navy)}
.order-box.light p{color:var(--muted)}
.order-box .button{flex:none}
/* 暫不開放的按鈕: 保留外觀但不能點 */
.button.is-disabled{opacity:.45;cursor:not-allowed;pointer-events:none;filter:grayscale(.4)}
.order-box.light .button{background:#fff;border:1px solid #163b40;color:var(--navy)}
.pack-table{width:100%;border-collapse:collapse;margin-top:20px;background:#fff;font-size:13px}
.pack-table th{background:#e4ebdc;font-weight:500;padding:12px 16px;text-align:left}
.pack-table td{padding:12px 16px;border-top:1px solid var(--line)}
.pack-table td:last-child,.pack-table th:last-child{text-align:right}

/* FAQ */
.faq{max-width:900px;margin:auto}
.faq .section-heading{display:block}
details{border-bottom:1px solid var(--line);padding:24px 0}
summary{cursor:pointer;font-size:15px;list-style:none;display:flex;justify-content:space-between;gap:20px}
summary::-webkit-details-marker{display:none}
summary:after{content:'+';font-size:20px}
details[open] summary:after{content:'−'}
details p{font-size:13px;line-height:2;color:var(--muted);margin-bottom:0}

/* 聯絡 */
.contact{background:#e4ebdc;display:grid;grid-template-columns:1fr 1fr;gap:80px}
.contact p{font-size:14px;line-height:2;color:#4c625b}
.contact .button{background:var(--navy);color:#fff}
.contact-info{align-self:center;border-left:1px solid #b8c8b0;padding-left:50px}
.contact-info h3{font-weight:500;font-size:22px}
.contact-info h3 .en-name{display:block;font-size:11px;letter-spacing:3px;color:var(--muted);margin-top:8px;font-weight:500}
.contact-info p{font-size:13px}

footer{background:#082430;color:#d1dfd9;padding:50px 8% 25px}
.footer-top{display:flex;justify-content:space-between;gap:35px}
.footer-top p{font-size:11px;line-height:2;color:#a4bbb4}
.footer-bottom{border-top:1px solid #35515a;padding-top:25px;margin-top:35px;display:flex;justify-content:space-between;gap:20px;font-size:10px;line-height:1.8;color:#a4bbb4}

.modal{border:0;width:min(560px,90vw);padding:35px;color:var(--navy)}
.modal::backdrop{background:#092936a6}
.modal .close{float:right;border:0;background:none;font-size:24px}
.modal h3{font-size:23px}
.modal p{font-size:14px;line-height:2}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s,transform .8s}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

@media(max-width:1100px){
  nav{gap:14px;font-size:12px}
  .feat-grid{grid-template-columns:repeat(3,1fr)}
  .lifestyle-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  nav,.navcta{display:none}
  header{height:82px}
  .brand{font-size:20px}
  .menu{display:block;border:0;background:none;font-size:24px}
  .menu-panel.open{display:flex;position:fixed;top:var(--menu-top,74px);max-height:calc(100vh - var(--menu-top,74px));overflow-y:auto;left:0;right:0;background:#fff;padding:25px 7%;flex-direction:column;gap:22px;z-index:15;border-bottom:1px solid #e8ece8;box-shadow:0 20px 30px #0b293815}
  .hero{min-height:600px;height:auto;align-items:flex-end}
  .hero-img{width:100%}
  .hero-img:after{background:linear-gradient(180deg,rgba(11,41,56,.2) 0%,rgba(11,41,56,.75) 45%,var(--navy) 80%)}
  .hero-copy{padding:240px 7% 80px}
  .hero h1{font-size:34px}
  .hero h1.big{font-size:46px}
  .hero p{font-size:13px}
  .button{gap:16px;padding:16px 18px}
  .button.outline{margin-left:5px}
  .hero-bottom{left:7%;font-size:8px}
  .hero-bottom span:last-child{display:none}
  .intro{padding:25px 7%;align-items:start;flex-direction:column}
  .stats{gap:0;width:100%;justify-content:space-between}
  .stats b{font-size:19px}
  .section{padding:65px 7%}
  .section-heading{display:block}
  .section-heading p{margin-top:16px;text-align:left}
  .section h2{font-size:29px}
  .tech,.herbs{grid-template-columns:1fr;gap:30px}
  .herbs{gap:10px}
  .tech h3,.herbs h3{font-size:24px}
  .compare{margin-top:50px}
  .compare>div{padding:12px 10px;font-size:13px}
  .compare .key{min-width:0;font-size:11px;letter-spacing:0;padding:12px 6px}
  .compare .head{font-size:13px;padding:14px 10px}
  .compare .head small{display:none}
  .compare .new:before{margin-right:6px}
  .feat-grid{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:70%;overflow-x:auto;scroll-snap-type:x mandatory;margin:0 -7%;padding:0 7% 8px}
  .feat-card{scroll-snap-align:start}
  .lifestyle-grid{grid-template-columns:1fr}
  .life-card{height:220px}
  .products{grid-template-columns:1fr;gap:10px}
  .product-art{height:320px}
  .product-art img{max-height:280px}
  .text-link{padding:12px 0 8px}
  .q-labels{font-size:11px}
  .spec{grid-template-columns:1fr 1fr}
  .spec div:nth-child(3){border-left:0}
  .spec div:nth-child(n+3){border-top:1px solid var(--line)}
  .guide,.contact,.quality-top,.tests{grid-template-columns:1fr;gap:35px}
  .steps{grid-template-columns:1fr;gap:24px}
  .step strong{font-size:40px;margin-top:12px}
  .tests{padding:28px 22px}
  .q-card{padding:22px}
  .order-grid,.order-cta{grid-template-columns:1fr;gap:12px}
  .order-box{flex-direction:column;align-items:flex-start;padding:26px 24px}
  .pack-table th,.pack-table td{padding:10px 10px}
  .contact-info{border-left:0;border-top:1px solid #b8c8b0;padding:20px 0 0}
  .footer-top,.footer-bottom{flex-direction:column}
  .announcement{font-size:9px;letter-spacing:1px}
}

/* 頁首logo圖(改/logo.jpg, 115x50) */
header .brand-logo{display:block;line-height:0}
header .brand-logo img{display:block;height:78px;width:auto}
@media screen and (max-width:900px){header .brand-logo img{height:66px}.pc-br{display:none}}
.totop{position:fixed;right:20px;bottom:28px;z-index:12;width:52px;height:52px;border-radius:50%;border:2px solid #fff;background:var(--green);color:var(--navy);font-size:20px;font-weight:700;line-height:1;display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(11,41,56,.3);cursor:pointer;touch-action:none;user-select:none;-webkit-user-select:none;opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .25s,transform .25s,visibility .25s}
.totop small{font-size:9px;letter-spacing:1px;margin-top:2px}
.totop.show{opacity:1;visibility:visible;transform:none}
.totop.dragging{transition:none;cursor:grabbing;box-shadow:0 10px 26px rgba(11,41,56,.45)}
@media(max-width:820px){.totop{right:14px;bottom:20px;width:46px;height:46px}}