/* ============================================================
   聯統 LIANTOONG — Multi-page RWD Website Styles
   ============================================================ */
:root{
  --c-primary:#1e56a8;
  --c-primary-dark:#143d7d;
  --c-accent:#e0a13c;
  --c-dark:#15265f;
  --c-grey-900:#182a5c;
  --c-grey-100:#f4f6f7;
  --c-grey-200:#e6eaec;
  --c-text:#37454d;
  --c-muted:#7c8a92;
  --c-white:#fff;
  --radius:14px;
  --shadow:0 8px 30px rgba(31,58,68,.10);
  --shadow-lg:0 18px 50px rgba(31,58,68,.16);
  --maxw:1200px;
  --header-h:74px;
  --ease:cubic-bezier(.22,.61,.36,1);

  /* 字體級距（全部 ≥ 14px；全站字體下限，禁用 rem/em/%）——
     沿用 crm-new 規則：字體一律用這些變數，勿硬編 px。 */
  --fs-min:14px;   /* 字體下限，任何字體不得小於此 */
  --fs-xs:14px;    /* 註解 / 標籤 / 次要資訊（下限） */
  --fs-sm:15px;    /* 輔助文字 */
  --fs-base:16px;  /* 內文基準 */
  --fs-md:18px;    /* 強調內文 / 小標 */
  --fs-lg:20px;    /* 區塊小標 */
  --fs-xl:24px;    /* 標題 */
  --fs-2xl:32px;   /* 大標 */
  --fs-3xl:40px;   /* 特大標 */
  --fs-hero:56px;  /* Hero 主標 */
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 14px)}
body{font-family:"Noto Sans TC",-apple-system,"Segoe UI",sans-serif;color:var(--c-text);font-size:var(--fs-base);line-height:1.75;background:var(--c-white);-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.no-scroll{overflow:hidden}
/* 開啟行動選單時鎖住背景捲動（position:fixed 技巧，含 iOS）；top 由 JS 設為 -scrollY */
body.nav-locked{position:fixed;left:0;right:0;width:100%;overflow:hidden}
@keyframes navItemIn{from{opacity:0;transform:translateY(9px)}to{opacity:1;transform:none}}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4em;padding:13px 30px;border-radius:999px;font-weight:700;font-size:15px;cursor:pointer;border:2px solid transparent;transition:all .25s var(--ease);letter-spacing:.03em;font-family:inherit}
.btn--primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.btn--primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);transform:translateY(-2px);box-shadow:0 10px 24px rgba(30,86,168,.35)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn--ghost:hover{background:#fff;color:var(--c-dark);transform:translateY(-2px)}
.btn--outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn--outline:hover{background:var(--c-primary);color:#fff}
.btn--lg{padding:16px 40px;font-size:16px}
.btn--block{width:100%}
.btn[disabled]{opacity:.55;cursor:default;transform:none!important;box-shadow:none!important}

/* ===== Top bar ===== */
.topbar{background:var(--c-dark);color:#cdd6da;font-size:var(--fs-xs)}
.topbar__inner{display:flex;justify-content:space-between;align-items:center;height:40px}
.topbar__contact{display:flex;gap:22px}
.topbar__contact a{display:inline-flex;align-items:center;gap:6px;transition:color .2s}
.topbar__contact a:hover{color:#fff}
.topbar .ico{color:var(--c-accent)}
.topbar__lang{display:flex;gap:8px;align-items:center}
.topbar__lang a{opacity:.7}
.topbar__lang a.active,.topbar__lang a:hover{opacity:1;color:var(--c-accent)}

/* ===== Header ===== */
.header{position:sticky;top:0;z-index:200;background:rgba(255,255,255,.97);backdrop-filter:blur(10px);box-shadow:0 2px 14px rgba(0,0,0,.06)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.logo{display:flex;align-items:center;gap:12px}
.logo__mark{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));color:#fff;font-family:"Montserrat";font-weight:800;font-size:19px;box-shadow:0 4px 12px rgba(30,86,168,.3)}
.logo__img{height:44px;width:auto;max-width:160px;object-fit:contain;border-radius:8px}
.logo__text{display:flex;flex-direction:column;line-height:1.1}
.logo__text strong{font-size:19px;color:var(--c-dark);font-weight:900}
.logo--light .logo__text strong{color:#fff}

/* ===== Nav + dropdown ===== */
.nav{display:flex;align-items:center;gap:2px}
.nav__item{position:relative;display:flex;align-items:center}
.nav__link{display:inline-flex;align-items:center;gap:5px;padding:10px 14px;font-weight:500;font-size:15.5px;color:var(--c-text);border-radius:8px;position:relative;transition:color .2s;white-space:nowrap}
.nav__link::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.nav__link:hover,.nav__link.is-active{color:var(--c-primary)}
.nav__item.is-active>.nav__link,.nav__link.is-active{color:var(--c-primary)}
.nav__link.is-active::after,.nav__item.is-active>.nav__link::after{transform:scaleX(1)}
.caret{width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .25s;opacity:.7}
.has-dd:hover .caret{transform:rotate(-135deg) translateY(-2px)}

.dd{position:absolute;top:100%;left:0;min-width:210px;padding-top:12px;opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s var(--ease);z-index:210}
.has-dd:hover .dd{opacity:1;visibility:visible;transform:translateY(0)}
.dd__inner{background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);padding:10px;border:1px solid var(--c-grey-200)}
.dd__item{display:block;padding:10px 16px;border-radius:8px;font-size:15px;color:var(--c-text);transition:all .18s;white-space:nowrap}
.dd__item:hover{background:var(--c-grey-100);color:var(--c-primary);padding-left:20px}

/* Mega menu (products): left = categories, right = materials/veneer links */
.dd--mega{left:50%;transform:translate(-50%,10px);min-width:460px}
.has-dd--wide:hover .dd--mega{transform:translate(-50%,0)}
.dd--mega .dd__inner{display:grid;grid-template-columns:1.7fr 1fr;gap:10px}
/* 選材說明欄未發布時：mega 縮成單欄、取消最小寬與右欄分隔線，右側不再留白 */
.dd--mega-single{min-width:0}
.dd--mega-single .dd__inner{grid-template-columns:1fr;gap:0}
.dd--mega-single .dd__col--cats{border-right:none}
.dd__col{padding:8px}
.dd__col--cats{border-right:1px solid var(--c-grey-200)}
.dd__col--links{display:flex;flex-direction:column}
.dd__title{display:block;font-size:var(--fs-xs);font-weight:700;letter-spacing:.08em;color:var(--c-muted);padding:4px 12px 10px;text-transform:uppercase}
.dd__grid{display:grid;grid-template-columns:1fr 1fr;gap:2px}

.nav__cta{margin-left:10px;display:inline-flex;align-items:center;gap:7px;padding:10px 20px;background:var(--c-accent);color:#fff;border-radius:999px;font-weight:700;font-size:15px;transition:all .25s var(--ease)}
.nav__cta:hover{background:#c88a26;transform:translateY(-2px);box-shadow:0 8px 18px rgba(224,161,60,.4)}
.nav__badge{min-width:20px;height:20px;padding:0 6px;border-radius:999px;background:#fff;color:var(--c-accent);font-size:var(--fs-xs);font-weight:800;display:grid;place-items:center;font-family:"Montserrat"}

.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.hamburger span{width:26px;height:3px;background:var(--c-dark);border-radius:2px;transition:all .3s var(--ease)}
.hamburger.is-open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* Mobile nav panel head + close button + backdrop (hidden on desktop) */
.nav__head{display:none}
.nav__close{display:none}
.nav-overlay{display:none}

/* ===== Hero ===== */
/* 圖片一律完整呈現、不裁切、無 letterbox 黑邊。高度依「是否顯示文字」分兩種模式：
   1) 純圖片 slide（show_text=false，無 .hero__slide--has-text）：.hero__media 不設 min-height，
      高度＝圖片自然高度，高度不足也不用背景填滿（零多餘背景）。
   2) 有文字 slide（.hero__slide--has-text，main.js 依 h.show_text 加上）：.hero__media 給一段舒適的
      條件高度（min-height:clamp），確保標題/說明/按鈕疊層有足夠空間；圖片若矮於此高度，靠
      .hero__media 的 flex 置中「垂直＋水平置中」，多餘空間上下均分（不會全部堆在下方）。
   .hero__media 的 flex 置中同時服務：無圖 fallback、.hero__img 的 max-height:88vh 護欄觸發（異常超高直式圖）。
   .hero__fallback（無圖色塊，無自然比例可撐高度）維持 min-height，避免塌陷。
   .hero 本身不設 min-height：高度完全由「目前作用中的 slide」決定。
   輪播交叉淡入：作用中 slide 回到正常流（撐出 .hero 高度＝目前這張 slide 的高度），非作用中 slide 絕對疊層淡出。
   取捨：各張 slide 高度不同（尤其純圖片 vs 有文字、或圖片比例不一）時，切換 .hero 高度會跳動；
   建議同一輪播的圖片維持一致尺寸/比例、且有文字的 slide 用高度足夠的圖片。 */
.hero{position:relative;overflow:hidden;background:var(--c-grey-900)}
.hero__slide{position:absolute;inset:0;opacity:0;transition:opacity 1s var(--ease);pointer-events:none}
.hero__slide.is-active{position:relative;opacity:1;pointer-events:auto}
.hero__media{position:relative;width:100%;display:flex;align-items:center;justify-content:center;background:var(--c-grey-900)}
.hero__slide--has-text .hero__media{min-height:clamp(360px,60vh,560px)}
.hero__img{display:block;width:100%;height:auto;max-height:88vh;object-fit:contain;background:var(--c-grey-900)}
.hero__fallback{width:100%;min-height:320px;background:var(--bg,var(--c-grey-900))}
.hero__slide::after{content:"";position:absolute;inset:0;z-index:1;opacity:.14;background-image:radial-gradient(circle at 1px 1px,#fff 1px,transparent 0);background-size:26px 26px;pointer-events:none}
.hero__content{position:absolute;left:0;right:0;bottom:0;z-index:2;color:#fff;padding:36px 0 48px;background:linear-gradient(to top,rgba(0,0,0,.78) 0%,rgba(0,0,0,.4) 55%,rgba(0,0,0,0) 100%)}
.hero__inner{max-width:720px}
.hero__kicker{font-family:"Montserrat";letter-spacing:.28em;font-size:var(--fs-xs);font-weight:600;color:var(--c-accent);margin-bottom:18px;opacity:0;transform:translateY(20px)}
.hero__title{font-size:clamp(28px,4.6vw,52px);font-weight:900;line-height:1.22;margin-bottom:18px;text-shadow:0 2px 20px rgba(0,0,0,.3);opacity:0;transform:translateY(24px)}
.hero__desc{font-size:clamp(15px,2vw,19px);opacity:0;transform:translateY(24px);margin-bottom:30px;color:#eef2f3}
.hero__btns{display:flex;gap:14px;flex-wrap:wrap;opacity:0;transform:translateY(24px)}
.hero__slide.is-active .hero__kicker{animation:heroUp .7s .2s var(--ease) forwards}
.hero__slide.is-active .hero__title{animation:heroUp .7s .35s var(--ease) forwards}
.hero__slide.is-active .hero__desc{animation:heroUp .7s .5s var(--ease) forwards}
.hero__slide.is-active .hero__btns{animation:heroUp .7s .65s var(--ease) forwards}
@keyframes heroUp{to{opacity:1;transform:translateY(0)}}
.hero__dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);display:flex;gap:11px;z-index:4}
.hero__dots button{width:12px;height:12px;border-radius:999px;border:2px solid #fff;background:transparent;cursor:pointer;transition:all .3s;padding:0}
.hero__dots button.is-active{background:#fff;width:34px}

/* ===== Page banner (inner pages) ===== */
.page-hero{position:relative;background:linear-gradient(120deg,rgba(40,50,58,.9),rgba(30,86,168,.8)),var(--c-grey-900);color:#fff;padding:56px 0;overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;opacity:.14;background-image:radial-gradient(circle at 1px 1px,#fff 1px,transparent 0);background-size:26px 26px}
.page-hero__inner{position:relative;z-index:2}
.page-hero h1{font-size:clamp(26px,3.6vw,40px);font-weight:900;margin-bottom:10px}
.page-hero p{color:#dfe8ea;font-size:16.5px;max-width:640px}
.breadcrumb{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:14px;color:#b9c6cc;margin-bottom:16px}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{opacity:.6}

/* Rich content（.rich-content 隔離樣式已移至 assets/css/rich-content.css） */

/* ===== Sections ===== */
.section{padding:84px 0}
.section--sm{padding:60px 0}
.section--grey{background:var(--c-grey-100)}
.section--dark{background:var(--c-grey-900);color:#e8edef}
.section__head{text-align:center;max-width:680px;margin:0 auto 52px}
.section__head--left{text-align:left;margin-left:0}
.section__head--wide{max-width:none;margin-bottom:30px}
.section__kicker{font-family:"Montserrat";letter-spacing:.24em;font-size:var(--fs-xs);font-weight:600;color:var(--c-primary);margin-bottom:12px}
.section__title{font-size:clamp(24px,3.4vw,36px);font-weight:900;color:var(--c-dark);margin-bottom:16px;line-height:1.3}
.section__title--left{text-align:left}
.section__title--sm{font-size:var(--fs-xl)}
.section__head--light .section__title{color:#fff}
.section__head--light .section__kicker{color:var(--c-accent)}
.section__sub{color:var(--c-muted);font-size:16.5px}
.section--dark .section__sub{color:#a7b6bd}
.section__cta{text-align:center;margin-top:44px}

/* ===== Cards grid ===== */
.cards{display:grid;gap:26px}
.cards--2{grid-template-columns:repeat(2,1fr)}
.cards--3{grid-template-columns:repeat(3,1fr)}
.cards--4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--c-grey-200);border-radius:var(--radius);padding:38px 30px;text-align:center;transition:all .3s var(--ease)}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent}
.card__icon{width:74px;height:74px;margin:0 auto 20px;border-radius:20px;display:grid;place-items:center;font-size:34px;background:linear-gradient(135deg,#eaf1fb,#d6e4f7)}
.card h3{font-size:21px;color:var(--c-dark);margin-bottom:12px;font-weight:700}
.card p{color:var(--c-muted);font-size:15.5px}

/* ===== Stats ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:40px 20px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));border-radius:20px;color:#fff}
.stats--mt{margin-top:60px}
.stat{text-align:center;position:relative}
.stat:not(:last-child)::after{content:"";position:absolute;right:0;top:15%;height:70%;width:1px;background:rgba(255,255,255,.2)}
.stat__num{font-family:"Montserrat";font-size:clamp(34px,4vw,48px);font-weight:800;line-height:1}
.stat__plus{font-family:"Montserrat";font-size:30px;font-weight:800;vertical-align:top}
.stat p{font-size:15px;margin-top:8px;opacity:.9}

/* ===== Category cards ===== */
.cat-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:all .3s var(--ease);display:block}
.cat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.cat-card__img{aspect-ratio:4/3;background:linear-gradient(135deg,var(--c1,#e2e6ea),var(--c2,#cfd6db));display:grid;place-items:center;position:relative;background-size:cover;background-position:center}
.cat-card__img--photo{background-image:var(--img)}
.cat-card__img span{font-size:var(--fs-lg);font-weight:700;color:var(--c-text);text-align:center;padding:0 18px;line-height:1.3;word-break:break-word}
.cat-card__img::after{content:"";position:absolute;inset:0;background:rgba(255,255,255,0);transition:background .3s}
.cat-card:hover .cat-card__img::after{background:rgba(255,255,255,.12)}
.cat-card__body{padding:18px 20px}
.cat-card__body h3{font-size:18px;color:var(--c-dark);font-weight:700;margin-bottom:5px}
.cat-card__body p{font-size:14px;color:var(--c-muted)}
.cat-card__more{display:inline-flex;align-items:center;gap:6px;margin-top:12px;color:var(--c-primary);font-weight:600;font-size:14px}

/* ===== Product cards ===== */
.product-card{background:#fff;border:1px solid var(--c-grey-200);border-radius:var(--radius);overflow:hidden;transition:all .3s var(--ease);display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.product-card__img{aspect-ratio:4/3;background:linear-gradient(135deg,var(--c1,#e2e6ea),var(--c2,#cfd6db));position:relative;display:grid;place-items:center;background-size:cover;background-position:center}
.product-card__img--photo{background-image:var(--img)}
.product-card__img span{font-family:"Montserrat";font-weight:800;color:rgba(255,255,255,.6);font-size:15px;letter-spacing:.1em}
.product-card__tag{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.9);color:var(--c-primary);font-size:var(--fs-xs);font-weight:700;padding:3px 10px;border-radius:999px}
.product-card__body{padding:18px 20px;flex:1;display:flex;flex-direction:column}
.product-card__body h3{font-size:17px;color:var(--c-dark);font-weight:700;margin-bottom:6px;line-height:1.4}
.product-card__model{font-size:var(--fs-xs);color:var(--c-muted);font-family:"Montserrat";margin-bottom:10px}
.product-card__meta{font-size:var(--fs-xs);color:var(--c-muted);margin-bottom:16px}
.product-card__foot{margin-top:auto;display:flex;gap:8px}
.product-card__foot .btn{padding:9px 16px;font-size:var(--fs-xs);flex:1}

/* ===== Product detail ===== */
.pd{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.pd__gallery{position:sticky;top:100px;min-width:0}
.pd__info{min-width:0}
.pd__main{aspect-ratio:1/1;border-radius:20px;background:linear-gradient(135deg,var(--c1,#e2e6ea),var(--c2,#cfd6db));display:grid;place-items:center;box-shadow:var(--shadow-lg);position:relative;overflow:hidden;background-size:cover;background-position:center}
.pd__main--photo{background-image:var(--img)}
.pd__main--photo::after{display:none}
.pd__main::after{content:"";position:absolute;inset:0;opacity:.18;background-image:radial-gradient(circle at 2px 2px,#fff 1.5px,transparent 0);background-size:32px 32px}
.pd__main span{font-family:"Montserrat";font-size:26px;font-weight:800;color:rgba(255,255,255,.7);letter-spacing:.15em;z-index:1}
.pd__thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:14px}
.pd__thumb{aspect-ratio:1/1;border-radius:12px;background:linear-gradient(135deg,var(--c1,#e2e6ea),var(--c2,#cfd6db));cursor:pointer;border:2px solid transparent;opacity:.72;transition:all .2s}
.pd__thumb:hover,.pd__thumb.is-active{opacity:1;border-color:var(--c-primary)}
.pd__cat{color:var(--c-primary);font-weight:600;font-size:14px;margin-bottom:8px}
.pd__title{font-size:clamp(24px,3vw,32px);font-weight:900;color:var(--c-dark);margin-bottom:8px;line-height:1.3}
.pd__model{font-family:"Montserrat";color:var(--c-muted);margin-bottom:20px}
.pd-article{min-width:0}
#pdArticleSection .section__title{margin-bottom:24px}
.spec-table{width:100%;margin-bottom:24px}
.spec-table tr{border-bottom:1px solid var(--c-grey-200)}
.spec-table th{text-align:left;padding:13px 0;color:var(--c-muted);font-weight:500;font-size:15px;width:120px;vertical-align:top}
.spec-table td{padding:13px 0;color:var(--c-dark);font-size:15px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{background:#eaf1fb;color:var(--c-primary);font-size:var(--fs-xs);font-weight:600;padding:6px 14px;border-radius:999px}
.pd__actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}

/* ===== Feature block ===== */
.feature__inner{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:center}
.feature--rev .feature__media{order:2}
.feature__media{aspect-ratio:5/4;border-radius:24px;position:relative;overflow:hidden;background:linear-gradient(135deg,#1e56a8,#3f7fce 60%,#9cc2ef);box-shadow:var(--shadow-lg)}
.feature__media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1}
.feature__media::after{content:"";position:absolute;inset:0;opacity:.25;background-image:radial-gradient(circle at 2px 2px,#fff 1.5px,transparent 0);background-size:30px 30px}
.feature__badge{position:absolute;top:24px;left:24px;z-index:2;background:rgba(255,255,255,.92);color:var(--c-primary);font-weight:800;padding:8px 18px;border-radius:999px;font-family:"Montserrat";letter-spacing:.1em;font-size:14px}
.feature__text>p{color:var(--c-muted);margin-bottom:22px;font-size:16px}
.checklist{margin-bottom:28px}
.checklist li{position:relative;padding-left:34px;margin-bottom:12px;font-size:16px;color:var(--c-text)}
.checklist li::before{content:"✓";position:absolute;left:0;top:1px;width:23px;height:23px;border-radius:999px;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:var(--fs-xs);font-weight:700}

/* ===== Process timeline ===== */
.timeline{max-width:820px;margin:0 auto;position:relative}
.timeline::before{content:"";position:absolute;left:31px;top:10px;bottom:10px;width:2px;background:var(--c-grey-200)}
.tl-item{position:relative;padding-left:88px;padding-bottom:40px}
.tl-item:last-child{padding-bottom:0}
.tl-item__num{position:absolute;left:0;top:0;width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));color:#fff;display:grid;place-items:center;font-family:"Montserrat";font-weight:800;font-size:22px;box-shadow:0 6px 16px rgba(30,86,168,.3);z-index:1}
.tl-item h3{font-size:20px;color:var(--c-dark);margin-bottom:8px;font-weight:700}
.tl-item p{color:var(--c-muted);font-size:15.5px}

/* ===== Material / veneer swatches ===== */
.mat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mat{background:#fff;border:1px solid var(--c-grey-200);border-radius:var(--radius);padding:28px;transition:all .3s var(--ease)}
.mat:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:transparent}
.mat__code{display:inline-block;font-family:"Montserrat";font-weight:800;font-size:15px;color:#fff;background:var(--c-primary);padding:5px 14px;border-radius:8px;margin-bottom:14px}
.mat h3{font-size:19px;color:var(--c-dark);margin-bottom:10px}
.mat p{color:var(--c-muted);font-size:15px;margin-bottom:14px}
.mat__tags{display:flex;flex-wrap:wrap;gap:7px}
.mat__tags span{font-size:var(--fs-xs);background:var(--c-grey-100);color:var(--c-text);padding:4px 11px;border-radius:999px}

.veneer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.veneer{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#fff}
.veneer__swatch{aspect-ratio:3/2;background:linear-gradient(135deg,var(--v1),var(--v2))}
.veneer__name{padding:14px 16px;font-weight:600;color:var(--c-dark);font-size:15px}
.veneer__name small{display:block;color:var(--c-muted);font-weight:400;font-size:var(--fs-xs);font-family:"Montserrat"}

/* ===== Certifications ===== */
.certs{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
.cert{text-align:center;padding:20px 10px;transition:transform .3s}
.cert:hover{transform:translateY(-6px)}
.cert__logo{width:120px;height:120px;margin:0 auto 16px;border-radius:50%;display:grid;place-items:center;font-family:"Montserrat";font-weight:800;font-size:22px;line-height:1.15;color:#fff;border:2px solid rgba(255,255,255,.25);background:linear-gradient(135deg,rgba(255,255,255,.12),rgba(255,255,255,.04))}
.cert p{color:#b9c6cc;font-size:14.5px}
.cert-doc{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.cert-doc__item{background:#fff;border:1px solid var(--c-grey-200);border-radius:var(--radius);overflow:hidden;transition:all .3s var(--ease)}
.cert-doc__item:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:transparent}
.cert-doc__paper{aspect-ratio:3/4;background:linear-gradient(160deg,#fbfcfc,#eef3f2);display:grid;place-items:center;border-bottom:1px solid var(--c-grey-200);position:relative}
.cert-doc__paper span{font-family:"Montserrat";font-weight:800;color:var(--c-primary);font-size:20px;text-align:center;line-height:1.3}
.cert-doc__seal{position:absolute;bottom:16px;right:16px;width:44px;height:44px;border-radius:50%;background:var(--c-accent);opacity:.85}
.cert-doc__cap{padding:14px 18px;font-size:15px;color:var(--c-dark);font-weight:600;text-align:center}

.tag{display:inline-block;background:#eaf1fb;color:var(--c-primary);font-size:var(--fs-xs);font-weight:700;padding:4px 12px;border-radius:999px;margin-bottom:12px;align-self:flex-start}

/* ===== CTA banner ===== */
.cta-banner{background:linear-gradient(120deg,var(--c-dark),var(--c-grey-900));position:relative;overflow:hidden}
.cta-banner::after{content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(30,86,168,.5),transparent 70%)}
.cta-banner__inner{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:56px 24px;position:relative;z-index:2;color:#fff;flex-wrap:wrap}
.cta-banner h2{font-size:clamp(23px,3vw,32px);font-weight:800;margin-bottom:8px}
.cta-banner p{color:#b9c6cc;font-size:16.5px}

/* ===== Contact ===== */
.contact{display:grid;grid-template-columns:1fr 1.3fr;gap:44px;align-items:start}
.contact__info{background:#fff;border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
.info-item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--c-grey-200)}
.info-item:last-child{border-bottom:none}
.info-item__ico{flex:0 0 46px;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:#eaf1fb;font-size:20px}
.info-item strong{display:block;color:var(--c-dark);font-size:15px;margin-bottom:2px}
.info-item p{color:var(--c-muted);font-size:15px}
.contact__line-item p{margin-bottom:10px;font-size:var(--fs-xs)}
.contact__qr{display:block;max-width:150px;width:100%;height:auto;border:1px solid var(--c-grey-200);border-radius:10px;padding:6px;background:#fff}
.map{margin-top:20px;border-radius:var(--radius);overflow:hidden;aspect-ratio:16/9;background:linear-gradient(135deg,#dfe7f2,#c5d3e6);display:grid;place-items:center;color:var(--c-primary);font-weight:700}

/* ===== Forms ===== */
.form-card{background:#fff;border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field label{display:block;font-size:14.5px;font-weight:500;color:var(--c-dark);margin-bottom:7px}
.field label span{color:#d9534f}
.field input,.field select,.field textarea{width:100%;padding:12px 15px;border:1.5px solid var(--c-grey-200);border-radius:10px;font-family:inherit;font-size:15px;color:var(--c-text);transition:border-color .2s,box-shadow .2s;background:#fbfcfc}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(30,86,168,.12);background:#fff}
.field textarea{resize:vertical}
.field input.err,.field textarea.err,.field select.err{border-color:#d9534f;box-shadow:0 0 0 3px rgba(217,83,79,.12)}
.form-msg{margin-top:14px;text-align:center;font-size:15px;font-weight:600;min-height:22px}
.form-msg.ok{color:var(--c-primary)}
.form-msg.no{color:#d9534f}
/* 蜜罐欄位：真人不可見（off-screen），機器人會自動填 → 後端判定攔截 */
.hp-field{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}

/* ===== Quote list ===== */
.quote-table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.quote-table th{background:var(--c-grey-100);text-align:left;padding:16px 18px;font-size:14px;color:var(--c-muted);font-weight:600}
.quote-table td{padding:16px 18px;border-top:1px solid var(--c-grey-200);font-size:15px;vertical-align:middle}
.quote-table__img{width:64px;height:64px;border-radius:10px;background:linear-gradient(135deg,var(--c1),var(--c2))}
.quote-table__name{font-weight:600;color:var(--c-dark)}
.quote-table__model{font-family:"Montserrat";font-size:var(--fs-xs);color:var(--c-muted)}
.quote-remove{background:none;border:none;color:#d9534f;cursor:pointer;font-size:14px;font-weight:600;padding:6px 10px;border-radius:8px;transition:background .2s}
.quote-remove:hover{background:#fdecec}
.empty-state{text-align:center;padding:70px 20px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow)}
.empty-state__ico{font-size:56px;margin-bottom:18px}
.empty-state h3{font-size:22px;color:var(--c-dark);margin-bottom:10px}
.empty-state p{color:var(--c-muted);margin-bottom:24px}

/* ===== Toast ===== */
.toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%,20px);background:var(--c-dark);color:#fff;padding:14px 26px;border-radius:999px;font-size:15px;font-weight:600;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transition:all .3s var(--ease);z-index:400}
.toast.show{opacity:1;visibility:visible;transform:translate(-50%,0)}
.toast .ok{color:#9ec9f2}

/* ===== Footer ===== */
.footer{background:var(--c-dark);color:#aebbc2;padding-top:60px}
.footer .logo--light .logo__img{background:#fff;padding:8px 12px;border-radius:10px}
.footer__inner{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer__brand p{margin-top:18px;font-size:var(--fs-xs);line-height:1.8;max-width:320px}
.footer__col h4{color:#fff;font-size:var(--fs-base);margin-bottom:18px;font-weight:700}
.footer__col ul li{margin-bottom:11px}
.footer__col ul a{font-size:var(--fs-xs);transition:color .2s}
.footer__col ul a:hover{color:var(--c-accent)}
.footer__contact li{font-size:var(--fs-xs);margin-bottom:11px}
.footer__bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0}
.footer__bottom p{font-size:var(--fs-xs);color:#7f8f97;text-align:center}

/* ===== Back to top ===== */
.back-to-top{position:fixed;right:26px;bottom:26px;z-index:150;width:50px;height:50px;border-radius:14px;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:24px;box-shadow:0 8px 22px rgba(30,86,168,.4);opacity:0;visibility:hidden;transform:translateY(14px);transition:all .3s var(--ease)}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{background:var(--c-primary-dark);transform:translateY(-3px)}

/* ===== Search bar (products / category) ===== */
.search-bar{display:flex;align-items:stretch;gap:14px;margin:0 auto 48px;max-width:600px}
.search-bar__input{flex:1;min-width:0;padding:13px 20px 13px 48px;border:2px solid var(--c-grey-200);border-radius:999px;font-size:var(--fs-base);color:var(--c-text);background:#fff url('data:image/svg+xml;utf8,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 24 24%22 fill=%22none%22 stroke=%22%237c8a92%22 stroke-width=%222%22 stroke-linecap=%22round%22 stroke-linejoin=%22round%22><circle cx=%2211%22 cy=%2211%22 r=%227%22/><line x1=%2221%22 y1=%2221%22 x2=%2216.65%22 y2=%2216.65%22/></svg>') no-repeat 18px center;background-size:18px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-bar__input::placeholder{color:var(--c-muted)}
.search-bar__input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(30,86,168,.14)}
.search-bar__btn{white-space:nowrap;padding:13px 34px}

/* ===== Tag pills (product card / detail) & tag filter bar (products.html) =====
   --tag-bg/--tag-fg 為動態計算值（依標籤 color 決定背景與可讀文字色），透過 CSS 變數傳入，非硬編樣式 */
.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
/* 內容標籤：小巧、淺色底＋識別色點＋中性字＋小圓角，刻意與實心圓角的 CTA 按鈕區隔，讀作「標籤」而非按鈕。
   刻意做小以容納多個標籤；色點沿用標籤原色（--tag-bg）保留識別；底色/邊框用 color-mix 淡化，不支援時退回中性灰。 */
.tag-pill{display:inline-flex;align-items:center;gap:5px;background:#f4f6f9;background:color-mix(in srgb,var(--tag-bg,var(--c-primary)) 8%,#fff);color:var(--c-text);border:1px solid #e2e8f0;border-color:color-mix(in srgb,var(--tag-bg,var(--c-primary)) 26%,#fff);font-size:var(--fs-xs);font-weight:600;padding:2px 8px 2px 7px;border-radius:5px;text-decoration:none;line-height:1.5;white-space:nowrap;transition:border-color .15s var(--ease),background-color .15s var(--ease),transform .15s var(--ease)}
.tag-pill::before{content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--tag-bg,var(--c-primary))}
.tag-pill:hover{border-color:var(--tag-bg,var(--c-primary));transform:translateY(-1px)}
.pd__tags{margin-bottom:16px}
.pd__tags:empty{display:none}
.pd__tags .tag-pill{padding:3px 9px 3px 8px}

.tag-filter{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:0 auto 32px;max-width:760px}
.tag-filter__label{font-size:var(--fs-sm);font-weight:700;color:var(--c-muted);white-space:nowrap}
.tag-filter__list{display:flex;flex-wrap:wrap;gap:8px}
.tag-filter__item{padding:7px 16px;border-radius:999px;background:#fff;border:1.5px solid var(--c-grey-200);font-size:var(--fs-xs);font-weight:600;color:var(--c-text);cursor:pointer;transition:all .2s;white-space:nowrap;text-decoration:none}
.tag-filter__item:hover{border-color:var(--c-primary);color:var(--c-primary)}
.tag-filter__item.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ===== Toolbar (category page) ===== */
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:30px;flex-wrap:wrap}
.toolbar__count{color:var(--c-muted);font-size:15px}
.cat-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:36px}
.cat-tabs:empty{display:none}
.cat-tab{padding:8px 18px;border-radius:999px;background:#fff;border:1.5px solid var(--c-grey-200);font-size:14px;color:var(--c-text);cursor:pointer;transition:all .2s;white-space:nowrap;text-decoration:none}
.cat-tab:hover{border-color:var(--c-primary);color:var(--c-primary)}
.cat-tab.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ===== Reveal ===== */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:translateY(0)}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1024px){
  .cards--4{grid-template-columns:repeat(3,1fr)}
  .certs{grid-template-columns:repeat(3,1fr)}
  .cert-doc{grid-template-columns:repeat(2,1fr)}
  .veneer-grid{grid-template-columns:repeat(3,1fr)}
  .mat-grid{grid-template-columns:repeat(2,1fr)}
  .feature__inner{gap:40px}
}
@media (max-width:860px){
  /* ── 行動版選單（滿版覆蓋）─────────────────────────────────
     覆蓋整個畫面（含 header/topbar）、內部自捲、overscroll 收斂 + body 鎖捲
     → 看不到背景、背景不跟著滑；分類多時一頁可看更多。 */
  /* 關掉 header 的 backdrop-filter：否則它會成為 fixed 子選單的定位基準，
     使滿版選單以 header 頂端（topbar 下方）為 top:0，露出上方 topbar。 */
  .header{backdrop-filter:none;-webkit-backdrop-filter:none}
  .nav{
    position:fixed; top:0; right:0; left:0; z-index:210;
    width:100%; height:100vh; height:100dvh;                        /* 滿版：蓋住 header/topbar 與背景 */
    background:linear-gradient(180deg,#ffffff 0%,#f5f9f7 100%);
    flex-direction:column; align-items:stretch; gap:0; padding:0 0 28px;
    transform:translateX(102%);
    transition:transform .38s cubic-bezier(.22,.61,.36,1);
    overflow-y:auto; -webkit-overflow-scrolling:touch; overscroll-behavior:contain;
  }
  .nav.is-open{transform:translateX(0)}

  /* 抽屜頂部標題列（sticky，品牌綠） */
  .nav__head{
    position:sticky; top:0; z-index:3;
    display:flex; align-items:center; justify-content:space-between;
    padding:15px 18px; margin-bottom:6px;
    background:var(--c-primary); color:#fff;
  }
  .nav__head-title{display:flex;align-items:center;gap:9px;font-weight:700;letter-spacing:.18em;font-size:var(--fs-xs);text-transform:uppercase}
  .nav__head-title .dot{width:7px;height:7px;border-radius:50%;background:#fff;opacity:.9}
  .nav__close{
    display:flex;align-items:center;justify-content:center;
    width:38px;height:38px;border:none;border-radius:999px;
    background:rgba(255,255,255,.18);color:#fff;font-size:var(--fs-md);line-height:1;cursor:pointer;
    transition:background .2s,transform .15s;
  }
  .nav__close:hover{background:rgba(255,255,255,.30)}
  .nav__close:active{transform:scale(.9)}

  /* 深色遮罩：蓋住 header 以下的頁面內容 */
  .nav-overlay{display:block;position:fixed;inset:0;z-index:190;background:rgba(20,26,29,.46);opacity:0;visibility:hidden;transition:opacity .3s var(--ease)}
  .nav-overlay.is-open{opacity:1;visibility:visible}

  /* 連結：大點擊區、左右留白、圓角 */
  .nav > .nav__link, .nav > .nav__item{margin:0 12px}
  .nav__item{flex-direction:column;align-items:stretch}
  .nav__link{min-height:52px;padding:14px 14px;font-size:var(--fs-md);font-weight:600;border-bottom:1px solid var(--c-grey-100);justify-content:space-between;border-radius:10px}
  .nav__link::after{display:none}
  .nav__link.is-active,.nav__item.is-active>.nav__link{color:var(--c-primary);background:rgba(30,86,168,.09)}
  .caret{transform:rotate(45deg);transition:transform .28s var(--ease)}
  .nav__item.dd-open .caret{transform:rotate(-135deg)}

  /* signature：抽屜開啟時，選單項逐一淡入上移（reduced-motion 已於檔尾全域關閉） */
  .nav.is-open > .nav__link,
  .nav.is-open > .nav__item{animation:navItemIn .5s var(--ease) both}
  .nav.is-open > *:nth-child(2){animation-delay:.04s}
  .nav.is-open > *:nth-child(3){animation-delay:.09s}
  .nav.is-open > *:nth-child(4){animation-delay:.14s}
  .nav.is-open > *:nth-child(5){animation-delay:.19s}
  .nav.is-open > *:nth-child(6){animation-delay:.24s}
  .nav.is-open > *:nth-child(7){animation-delay:.29s}

  /* accordion 子選單 */
  .dd{position:static;min-width:0;padding-top:0;opacity:1;visibility:visible;transform:none;max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
  .nav__item.dd-open .dd{max-height:1200px}
  .dd__inner{box-shadow:none;border:none;padding:0 0 6px 8px;border-radius:0}
  .dd--mega,.has-dd--wide:hover .dd--mega{transform:none;left:0;min-width:0}
  .dd--mega .dd__inner{grid-template-columns:1fr;gap:0}
  /* Category list: single column on mobile (avoid cramped 2-col grid) */
  .dd__grid{grid-template-columns:1fr}
  /* Right-column materials/veneer links stack after the category list */
  .dd__col--cats{border-right:none;border-bottom:1px solid var(--c-grey-200)}
  .dd__col--links{padding-top:6px}
  /* small-heading style */
  .dd__title{padding:10px 12px 6px;margin-top:2px;border-top:1px solid var(--c-grey-200);font-size:var(--fs-xs);letter-spacing:.08em;text-transform:uppercase;color:var(--c-text-light,#8a949b)}
  .dd__item{min-height:46px;display:flex;align-items:center;padding:12px 12px;border-bottom:1px solid var(--c-grey-100);font-size:var(--fs-sm)}
  .dd__item:hover{padding-left:16px;color:var(--c-primary)}
  .nav__cta{margin:16px 12px 20px;justify-content:center;padding:14px}
  .hamburger{display:flex}
  .topbar__contact a:last-child{display:none}
  .contact{grid-template-columns:1fr}
  .feature__inner{grid-template-columns:1fr}
  .feature__media,.feature--rev .feature__media{order:-1}
  .cta-banner__inner{flex-direction:column;text-align:center;align-items:center}
  .pd{grid-template-columns:1fr;gap:30px}
  .pd__gallery{position:static}
  .footer__inner{grid-template-columns:1fr 1fr;gap:28px 24px}
  .footer__brand{grid-column:1/-1}
}
@media (max-width:680px){
  .section{padding:56px 0}
  .cards--2,.cards--3,.cards--4{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr;gap:0;padding:30px 10px}
  .stat{padding:20px 0}
  .stat:not(:last-child)::after{display:none}
  .stat:nth-child(odd)::after{content:"";display:block;position:absolute;right:0;top:20%;height:60%;width:1px;background:rgba(255,255,255,.2)}
  .certs{grid-template-columns:repeat(2,1fr)}
  .veneer-grid{grid-template-columns:repeat(2,1fr)}
  .field-row{grid-template-columns:1fr}
  .quote-table thead{display:none}
  .quote-table,.quote-table tbody,.quote-table tr,.quote-table td{display:block;width:100%}
  .quote-table tr{border-top:1px solid var(--c-grey-200);padding:12px 0;position:relative}
  .quote-table td{border:none;padding:6px 18px}
  .footer{padding-top:44px}
  .footer__inner{grid-template-columns:1fr;gap:32px;padding-bottom:32px;text-align:left}
  .footer__brand p{max-width:none}
}
@media (max-width:460px){
  .container{padding:0 18px}
  .cards--2,.cards--3,.cards--4{grid-template-columns:1fr}
  .cat-tabs{gap:6px}
  .search-bar{max-width:none;flex-direction:column;gap:10px}
  .search-bar__input{padding-left:44px}
  .search-bar__btn{width:100%}
  .tag-filter{max-width:none;flex-direction:column;align-items:flex-start;gap:8px}
  .mat-grid{grid-template-columns:1fr}
  .certs{grid-template-columns:1fr 1fr}
  .topbar__contact{gap:12px;font-size:var(--fs-xs)}
  .pd__thumbs{grid-template-columns:repeat(4,1fr)}
  /* 滿版選單在窄機維持 100% 寬 */
  .nav{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto}
}