/* =========================================================================
   洋鼎 YUNG DING — 官方網站主樣式表 main.css
   -------------------------------------------------------------------------
   目錄
   1. 設計變數 Design tokens
   2. 基礎設定 Base / reset
   3. 版面工具 Layout utilities
   4. 字體排版 Typography
   5. 按鈕 Buttons
   6. 頁首導覽 Header & navigation
   7. 首頁主視覺 Hero / 內頁頁首 Page hero
   8. 區塊元件 Sections & components
   9. 品牌徽章 Brand emblems
   10. 產品 Products
   11. 製程時間軸 Process timeline
   12. 物流 Logistics
   13. 聯絡表單 Contact form
   14. 頁尾 Footer
   15. 動畫 Animations (reveal / parallax)
   16. 響應式 Responsive
   ========================================================================= */

/* 1. 設計變數 -------------------------------------------------------------- */
:root {
  /* 品牌色 */
  --c-green: #284734;        /* 主色 森林綠 */
  --c-green-deep: #1b3324;   /* 深綠（深色區塊、頁尾） */
  --c-green-soft: #3a5e48;
  --c-gold: #d6b15a;         /* 輔色 玉米金 */
  --c-gold-soft: #e8d39e;
  --c-cream: #f7f4ec;        /* 背景 奶油白 */
  --c-cream-2: #efe9db;      /* 次要背景 */
  --c-ink: #1f2a23;          /* 內文深色 */
  --c-muted: #5f6b63;        /* 次要文字 */
  --c-line: rgba(40, 71, 52, 0.14);
  --c-white: #ffffff;
  --c-error: #a8432f;

  /* 字體 */
  --f-display: "Cormorant Garamond", "Noto Serif TC", "Songti TC", serif;
  --f-serif: "Noto Serif TC", "Songti TC", "PMingLiU", serif;
  --f-sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;

  /* 尺寸 */
  --container: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --section-y: clamp(80px, 12vw, 160px);
  --radius: 4px;
  --radius-lg: 14px;
  --header-h: 84px;

  /* 動態 */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --t: 0.4s var(--ease);
  --shadow: 0 24px 60px -30px rgba(27, 51, 36, 0.35);
}

/* 2. 基礎設定 -------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--f-sans);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--c-ink);
  background: var(--c-cream);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
/* 英文版改用拉丁字型，避免標點（’ —）以全形字寬顯示 */
html[lang="en"] { --f-sans: "Inter", "Helvetica Neue", Arial, "Noto Sans TC", sans-serif; }
html[lang="en"] body { letter-spacing: 0; line-height: 1.7; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
::selection { background: var(--c-gold); color: var(--c-green-deep); }
:focus-visible { outline: 2px solid var(--c-gold); outline-offset: 3px; }

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 1000;
  background: var(--c-gold); color: var(--c-green-deep);
  padding: 10px 18px; border-radius: var(--radius); transition: top var(--t);
}
.skip-link:focus { top: 16px; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* 3. 版面工具 -------------------------------------------------------------- */
.container { width: 100%; max-width: calc(var(--container) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--section-y) 0; position: relative; }
.section--tight { padding: calc(var(--section-y) * 0.6) 0; }
.section--alt { background: var(--c-cream-2); }
.section--dark { background: var(--c-green); color: var(--c-cream); }
.section--deep { background: var(--c-green-deep); color: var(--c-cream); }
.grid { display: grid; gap: clamp(24px, 3vw, 40px); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 7vw, 120px); align-items: center; }
.split--wide-left { grid-template-columns: 1.15fr 0.85fr; }
.split--wide-right { grid-template-columns: 0.85fr 1.15fr; }
.center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* 4. 字體排版 -------------------------------------------------------------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 14px;
  font-family: var(--f-sans); font-size: 12px; font-weight: 500;
  letter-spacing: 0.32em; text-transform: uppercase; color: var(--c-gold);
  margin-bottom: 22px;
}
.eyebrow::before { content: ""; width: 36px; height: 1px; background: currentColor; }
.center .eyebrow::after { content: ""; width: 36px; height: 1px; background: currentColor; }
.section:not(.section--dark):not(.section--deep) .eyebrow { color: #a8853a; }

.display {
  font-family: var(--f-serif); font-weight: 600;
  font-size: clamp(40px, 6.4vw, 88px); line-height: 1.12; letter-spacing: 0.04em;
}
html[lang="en"] .display { font-family: var(--f-display); letter-spacing: -0.01em; line-height: 1.02; font-size: clamp(46px, 7vw, 100px); }
.h2 {
  font-family: var(--f-serif); font-weight: 600;
  font-size: clamp(28px, 3.6vw, 48px); line-height: 1.3; letter-spacing: 0.05em;
  color: var(--c-green);
}
html[lang="en"] .h2 { font-family: var(--f-display); font-size: clamp(34px, 4.2vw, 56px); letter-spacing: 0; line-height: 1.1; }
.section--dark .h2, .section--deep .h2 { color: var(--c-cream); }
.h3 {
  font-family: var(--f-serif); font-weight: 600; font-size: clamp(20px, 1.9vw, 26px);
  line-height: 1.45; color: var(--c-green); letter-spacing: 0.04em;
}
html[lang="en"] .h3 { font-family: var(--f-display); font-size: clamp(24px, 2.2vw, 30px); letter-spacing: 0; line-height: 1.2; }
.section--dark .h3, .section--deep .h3 { color: var(--c-cream); }
.lead { font-size: clamp(16px, 1.3vw, 19px); line-height: 2; color: var(--c-muted); max-width: 640px; }
.section--dark .lead, .section--deep .lead { color: rgba(247, 244, 236, 0.78); }
.center .lead { margin-left: auto; margin-right: auto; }
.section-head { margin-bottom: clamp(48px, 6vw, 80px); }
.section-head .h2 + .lead { margin-top: 22px; }
.text-gold { color: var(--c-gold); }
.en-sub { display: block; font-family: var(--f-display); font-style: italic; font-weight: 500; color: var(--c-gold); font-size: 0.55em; letter-spacing: 0.02em; margin-top: 6px; }
.prose p + p { margin-top: 1.2em; }
.prose p { color: var(--c-muted); }
.section--dark .prose p, .section--deep .prose p { color: rgba(247, 244, 236, 0.8); }

/* 5. 按鈕 ----------------------------------------------------------------- */
.btn {
  --btn-bg: var(--c-gold); --btn-fg: var(--c-green-deep);
  position: relative; display: inline-flex; align-items: center; gap: 12px;
  padding: 16px 30px; border: 1px solid var(--btn-bg); border-radius: 999px;
  background: var(--btn-bg); color: var(--btn-fg);
  font-size: 14px; font-weight: 500; letter-spacing: 0.12em; cursor: pointer;
  overflow: hidden; isolation: isolate; transition: color var(--t), border-color var(--t), transform var(--t);
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1; background: var(--c-green-deep);
  transform: translateY(101%); transition: transform 0.5s var(--ease-out);
}
.btn:hover::before { transform: translateY(0); }
.btn:hover { color: var(--c-cream); border-color: var(--c-green-deep); }
.btn .arrow { transition: transform var(--t); }
.btn:hover .arrow { transform: translateX(4px); }
.btn--ghost { --btn-bg: transparent; --btn-fg: var(--c-cream); border-color: rgba(247, 244, 236, 0.5); }
.btn--ghost::before { background: var(--c-cream); }
.btn--ghost:hover { color: var(--c-green-deep); border-color: var(--c-cream); }
.btn--green { --btn-bg: var(--c-green); --btn-fg: var(--c-cream); }
.btn--green::before { background: var(--c-gold); }
.btn--green:hover { color: var(--c-green-deep); border-color: var(--c-gold); }
.btn-row { display: flex; flex-wrap: wrap; gap: 16px; }
.link-arrow {
  display: inline-flex; align-items: center; gap: 10px; font-size: 14px; letter-spacing: 0.12em;
  color: var(--c-green); font-weight: 500; padding-bottom: 4px;
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat;
  transition: background-size 0.5s var(--ease-out);
}
.link-arrow:hover { background-size: 100% 1px; }
.section--dark .link-arrow, .section--deep .link-arrow { color: var(--c-gold); }

/* 6. 頁首導覽 -------------------------------------------------------------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--header-h);
  display: flex; align-items: center; color: var(--c-cream);
  transition: background-color var(--t), color var(--t), height var(--t), box-shadow var(--t), transform 0.5s var(--ease);
}
.site-header.is-scrolled, body.no-hero .site-header {
  background: rgba(247, 244, 236, 0.92); color: var(--c-green);
  -webkit-backdrop-filter: saturate(140%) blur(14px); backdrop-filter: saturate(140%) blur(14px);
  box-shadow: 0 1px 0 var(--c-line); height: 70px;
}
.site-header.is-hidden { transform: translateY(-100%); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand-logo { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-logo__mark { width: 42px; height: 42px; flex-shrink: 0; }
.brand-logo__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-logo__zh { font-family: var(--f-serif); font-weight: 600; font-size: 20px; letter-spacing: 0.3em; }
.brand-logo__en { font-size: 10px; letter-spacing: 0.42em; opacity: 0.8; margin-top: 3px; }
.main-nav { display: flex; align-items: center; gap: clamp(14px, 2vw, 34px); }
.main-nav__list { display: flex; gap: clamp(14px, 1.9vw, 30px); }
.main-nav__link {
  position: relative; font-size: 14px; letter-spacing: 0.12em; padding: 6px 0; white-space: nowrap;
}
html[lang="en"] .main-nav__link { letter-spacing: 0.04em; font-size: 13.5px; }
.main-nav__link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--c-gold);
  transform: scaleX(0); transform-origin: right; transition: transform 0.45s var(--ease-out);
}
.main-nav__link:hover::after, .main-nav__link[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.main-nav__link[aria-current="page"] { color: var(--c-gold); }
.site-header.is-scrolled .main-nav__link[aria-current="page"], body.no-hero .main-nav__link[aria-current="page"] { color: #a8853a; }
.header-actions { display: flex; align-items: center; gap: 14px; }
.lang-toggle {
  display: inline-flex; align-items: center; border: 1px solid currentColor; border-radius: 999px;
  padding: 3px; background: transparent; cursor: pointer; font-size: 12px; letter-spacing: 0.08em; opacity: 0.9;
}
.lang-toggle span { padding: 4px 10px; border-radius: 999px; transition: background-color var(--t), color var(--t); }
.lang-toggle span.is-active { background: var(--c-gold); color: var(--c-green-deep); }
.header-cta { padding: 11px 22px; font-size: 13px; }
.nav-toggle {
  display: none; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer;
  position: relative; z-index: 120; color: inherit;
}
.nav-toggle span { position: absolute; left: 11px; right: 11px; height: 1.5px; background: currentColor; transition: transform var(--t), opacity var(--t), top var(--t); }
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 22px; }
.nav-toggle span:nth-child(3) { top: 28px; }
.nav-open .nav-toggle span:nth-child(1) { top: 22px; transform: rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { top: 22px; transform: rotate(-45deg); }

/* 手機選單 */
.mobile-nav {
  position: fixed; inset: 0; z-index: 110; background: var(--c-green-deep); color: var(--c-cream);
  display: flex; flex-direction: column; justify-content: center; padding: 100px var(--gutter) 40px;
  clip-path: circle(0% at calc(100% - 44px) 40px); visibility: hidden;
  transition: clip-path 0.7s var(--ease-out), visibility 0s linear 0.7s;
}
.nav-open .mobile-nav { clip-path: circle(150% at calc(100% - 44px) 40px); visibility: visible; transition: clip-path 0.7s var(--ease-out); }
.mobile-nav__list li { overflow: hidden; }
.mobile-nav__list a {
  display: flex; align-items: baseline; gap: 16px; padding: 10px 0; font-family: var(--f-serif);
  font-size: clamp(26px, 7vw, 40px); letter-spacing: 0.1em; transform: translateY(110%); transition: transform 0.6s var(--ease-out);
}
.mobile-nav__list a small { font-family: var(--f-sans); font-size: 11px; letter-spacing: 0.2em; color: var(--c-gold); }
.mobile-nav__list a[aria-current="page"] { color: var(--c-gold); }
.nav-open .mobile-nav__list a { transform: none; }
.nav-open .mobile-nav__list li:nth-child(2) a { transition-delay: 0.05s; }
.nav-open .mobile-nav__list li:nth-child(3) a { transition-delay: 0.1s; }
.nav-open .mobile-nav__list li:nth-child(4) a { transition-delay: 0.15s; }
.nav-open .mobile-nav__list li:nth-child(5) a { transition-delay: 0.2s; }
.nav-open .mobile-nav__list li:nth-child(6) a { transition-delay: 0.25s; }
.nav-open .mobile-nav__list li:nth-child(7) a { transition-delay: 0.3s; }
.mobile-nav__foot { margin-top: 40px; font-size: 13px; color: rgba(247, 244, 236, 0.7); line-height: 2; }
.nav-open { overflow: hidden; }
.nav-open .site-header { z-index: 130; transform: none; color: var(--c-cream); background: transparent; box-shadow: none; backdrop-filter: none; -webkit-backdrop-filter: none; }

/* 7. 主視覺 Hero ----------------------------------------------------------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: flex-end;
  color: var(--c-cream); overflow: hidden; background: var(--c-green-deep);
}
.hero__media { position: absolute; inset: -8% 0 -8% 0; will-change: transform; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: center 60%; transform: scale(1.12); animation: heroZoom 2.8s var(--ease-out) forwards; }
.hero__overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(27, 51, 36, 0.55) 0%, rgba(27, 51, 36, 0.05) 35%, rgba(27, 51, 36, 0.25) 60%, rgba(20, 38, 27, 0.92) 100%),
    linear-gradient(90deg, rgba(27, 51, 36, 0.55) 0%, rgba(27, 51, 36, 0) 60%);
}
.hero__content { position: relative; z-index: 2; width: 100%; padding-bottom: clamp(70px, 11vh, 130px); padding-top: 140px; }
.hero__title { max-width: 900px; }
html[lang="en"] .hero__title { max-width: 1120px; }
html[lang="en"] .hero .display { font-size: clamp(42px, 6vw, 88px); }
.hero__title .line { display: block; overflow: hidden; padding-bottom: 0.06em; }
.hero__title .line > span { display: inline-block; transform: translateY(110%); animation: lineUp 1.2s var(--ease-out) forwards; }
.hero__title .line:nth-child(2) > span { animation-delay: 0.15s; }
.hero__lead { max-width: 560px; margin-top: 28px; color: rgba(247, 244, 236, 0.85); font-size: clamp(15px, 1.25vw, 18px); line-height: 2; }
.hero .btn-row { margin-top: 40px; }
.hero .eyebrow { color: var(--c-gold-soft); }
.hero .eyebrow, .page-hero .breadcrumb { text-shadow: 0 1px 14px rgba(20, 38, 27, 0.65); }
.hero__fade { opacity: 0; animation: fadeUp 1s var(--ease-out) forwards; }
.hero__fade--1 { animation-delay: 0.5s; } .hero__fade--2 { animation-delay: 0.7s; } .hero__fade--3 { animation-delay: 0.9s; }
.hero__meta {
  position: absolute; right: var(--gutter); bottom: clamp(70px, 11vh, 130px); z-index: 2;
  display: flex; flex-direction: column; align-items: flex-end; gap: 6px; font-size: 12px; letter-spacing: 0.3em; color: rgba(247, 244, 236, 0.7);
}
.scroll-cue {
  position: absolute; left: 50%; bottom: 26px; z-index: 2; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px; font-size: 10px; letter-spacing: 0.4em; color: rgba(247, 244, 236, 0.7);
}
.scroll-cue::after { content: ""; width: 1px; height: 46px; background: linear-gradient(var(--c-gold), transparent); animation: cue 2.2s var(--ease) infinite; transform-origin: top; }

/* 內頁頁首 */
.page-hero {
  position: relative; min-height: clamp(460px, 72vh, 720px); display: flex; align-items: flex-end;
  color: var(--c-cream); overflow: hidden; background: var(--c-green-deep);
}
.page-hero .hero__media img { animation-duration: 2.2s; }
.page-hero .hero__overlay { background: linear-gradient(180deg, rgba(27, 51, 36, 0.6) 0%, rgba(27, 51, 36, 0.2) 45%, rgba(20, 38, 27, 0.9) 100%); }
.page-hero .hero__content { padding-bottom: clamp(56px, 9vh, 100px); }
.page-hero .display { font-size: clamp(40px, 5.6vw, 76px); }
.breadcrumb { font-size: 12px; letter-spacing: 0.2em; color: rgba(247, 244, 236, 0.7); margin-bottom: 18px; }
.breadcrumb a:hover { color: var(--c-gold); }

/* 8. 區塊元件 -------------------------------------------------------------- */
/* 數據列 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line); }
.stat { padding: clamp(28px, 4vw, 52px) clamp(16px, 2vw, 32px); border-right: 1px solid var(--c-line); }
.stat:last-child { border-right: 0; }
.stat__num { font-family: var(--f-display); font-size: clamp(44px, 5.4vw, 76px); line-height: 1; color: var(--c-green); font-weight: 500; }
.stat__num sup { font-size: 0.42em; color: #a8853a; margin-left: 4px; vertical-align: super; }
.stat__label { margin-top: 14px; font-size: 14px; color: var(--c-muted); letter-spacing: 0.08em; }

/* 圖像框 */
.media-frame { position: relative; overflow: hidden; border-radius: var(--radius-lg); background: var(--c-cream-2); }
.media-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease-out); }
.media-frame:hover img { transform: scale(1.04); }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--wide { aspect-ratio: 16 / 10; }
.media-frame--square { aspect-ratio: 1; }
.media-stack { position: relative; }
.media-stack .media-frame--small {
  position: absolute; width: 46%; right: -8%; bottom: -12%; aspect-ratio: 1; border: 8px solid var(--c-cream); box-shadow: var(--shadow);
}
.section--alt .media-stack .media-frame--small { border-color: var(--c-cream-2); }
.caption-tag {
  position: absolute; left: 20px; bottom: 20px; z-index: 2; background: rgba(247, 244, 236, 0.92); color: var(--c-green);
  font-size: 12px; letter-spacing: 0.16em; padding: 8px 14px; border-radius: 999px;
}

/* 卡片 */
.card {
  position: relative; background: var(--c-white); border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: 0 1px 0 var(--c-line); transition: transform 0.6s var(--ease-out), box-shadow 0.6s var(--ease-out);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.card__media { aspect-ratio: 4 / 3; overflow: hidden; }
.card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease-out); }
.card:hover .card__media img { transform: scale(1.06); }
.card__body { padding: clamp(24px, 2.6vw, 36px); }
.card__kicker { font-size: 12px; letter-spacing: 0.24em; color: #a8853a; text-transform: uppercase; margin-bottom: 10px; }
.card__text { margin-top: 12px; color: var(--c-muted); font-size: 15px; }
.card__body .link-arrow { margin-top: 22px; }

/* 價值 / 特色列表 */
.feature { padding-top: 28px; border-top: 1px solid var(--c-line); }
.section--dark .feature, .section--deep .feature { border-color: rgba(247, 244, 236, 0.16); }
.feature__no { font-family: var(--f-display); font-size: 15px; color: #a8853a; letter-spacing: 0.1em; }
.section--dark .feature__no, .section--deep .feature__no { color: var(--c-gold); }
.feature .h3 { margin-top: 10px; }
.feature p { margin-top: 12px; color: var(--c-muted); font-size: 15px; }
.section--dark .feature p, .section--deep .feature p { color: rgba(247, 244, 236, 0.72); }
.feature__icon { width: 44px; height: 44px; color: var(--c-gold); margin-bottom: 18px; }

/* 服務對象 */
.audience { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(247, 244, 236, 0.14); border: 1px solid rgba(247, 244, 236, 0.14); border-radius: var(--radius-lg); overflow: hidden; }
.audience__item { background: var(--c-green); padding: clamp(28px, 3vw, 44px); transition: background-color var(--t); }
.audience__item:hover { background: var(--c-green-soft); }
.audience__item .h3 { font-size: clamp(18px, 1.6vw, 22px); }
.audience__item p { margin-top: 10px; font-size: 14px; color: rgba(247, 244, 236, 0.72); }
.audience__en { display: block; font-size: 11px; letter-spacing: 0.24em; color: var(--c-gold); text-transform: uppercase; margin-bottom: 14px; }

/* 引言 */
.quote { font-family: var(--f-serif); font-size: clamp(24px, 3vw, 40px); line-height: 1.6; letter-spacing: 0.06em; color: var(--c-green); max-width: 920px; }
html[lang="en"] .quote { font-family: var(--f-display); font-style: italic; letter-spacing: 0; line-height: 1.35; font-size: clamp(28px, 3.4vw, 46px); }
.quote::before { content: "“"; display: block; font-family: var(--f-display); font-size: 2.6em; line-height: 0.6; color: var(--c-gold); margin-bottom: 18px; }

/* 跑馬燈 */
.marquee { overflow: hidden; border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line); padding: 26px 0; background: var(--c-cream); }
.marquee__track { display: flex; gap: 60px; width: max-content; animation: marquee 40s linear infinite; }
.marquee__item { display: inline-flex; align-items: center; gap: 60px; font-family: var(--f-display); font-size: clamp(22px, 2.6vw, 34px); color: var(--c-green); white-space: nowrap; }
.marquee__item::after { content: "✦"; color: var(--c-gold); font-size: 0.6em; }

/* CTA 帶 */
.cta-band { position: relative; overflow: hidden; color: var(--c-cream); background: var(--c-green); }
.cta-band__media { position: absolute; inset: -30% 0; opacity: 0.28; }
.cta-band__media img { width: 100%; height: 100%; object-fit: cover; }
.cta-band__inner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 40px; padding-top: clamp(70px, 10vw, 130px); padding-bottom: clamp(70px, 10vw, 130px); }
.cta-band .h2 { color: var(--c-cream); max-width: 680px; }

/* 9. 品牌徽章 -------------------------------------------------------------- */
.brand-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 2.4vw, 32px); }
.brand-card {
  position: relative; display: flex; flex-direction: column; align-items: center; text-align: center;
  padding: clamp(36px, 4vw, 56px) clamp(24px, 3vw, 40px); background: var(--c-white); border-radius: var(--radius-lg);
  border: 1px solid var(--c-line); overflow: hidden; transition: transform 0.6s var(--ease-out), box-shadow 0.6s var(--ease-out), border-color var(--t);
}
.brand-card::before {
  content: ""; position: absolute; inset: auto 0 0 0; height: 3px; background: var(--c-gold); transform: scaleX(0); transition: transform 0.6s var(--ease-out);
}
.brand-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.brand-card:hover::before { transform: scaleX(1); }
.emblem {
  position: relative; width: 132px; height: 132px; border-radius: 50%; display: grid; place-items: center;
  background: radial-gradient(circle at 30% 25%, var(--c-green-soft), var(--c-green) 60%, var(--c-green-deep));
  color: var(--c-gold); box-shadow: inset 0 0 0 6px var(--c-green), inset 0 0 0 7px rgba(214, 177, 90, 0.6);
  transition: transform 0.8s var(--ease-out);
}
.brand-card:hover .emblem { transform: rotate(-6deg) scale(1.04); }
.emblem__ring { position: absolute; inset: 0; width: 100%; height: 100%; animation: spin 40s linear infinite; }
.emblem__ring text { font-family: var(--f-sans); font-size: 9.5px; letter-spacing: 3.2px; fill: rgba(214, 177, 90, 0.85); text-transform: uppercase; }
.emblem__char { font-family: var(--f-serif); font-size: 46px; font-weight: 600; line-height: 1; position: relative; }
.brand-card__zh { margin-top: 28px; font-family: var(--f-serif); font-size: 26px; font-weight: 600; letter-spacing: 0.3em; color: var(--c-green); padding-left: 0.3em; }
.brand-card__en { margin-top: 4px; font-family: var(--f-display); font-style: italic; font-size: 19px; color: #a8853a; }
.brand-card__desc { margin-top: 16px; font-size: 14.5px; color: var(--c-muted); max-width: 300px; }
.brand-card__tags { margin-top: 20px; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.tag { font-size: 12px; letter-spacing: 0.08em; padding: 5px 12px; border-radius: 999px; background: var(--c-cream); color: var(--c-green); border: 1px solid var(--c-line); }

/* 首頁品牌列 */
.brand-strip { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px; background: var(--c-line); border: 1px solid var(--c-line); border-radius: var(--radius-lg); overflow: hidden; }
.brand-strip__item { background: var(--c-cream); padding: 34px 12px 28px; display: flex; flex-direction: column; align-items: center; gap: 14px; transition: background-color var(--t); }
.brand-strip__item:hover { background: var(--c-white); }
.brand-strip__item .emblem { width: 84px; height: 84px; box-shadow: inset 0 0 0 4px var(--c-green), inset 0 0 0 5px rgba(214, 177, 90, 0.6); }
.brand-strip__item .emblem__char { font-size: 30px; }
.brand-strip__name { font-family: var(--f-serif); font-weight: 600; letter-spacing: 0.2em; color: var(--c-green); text-align: center; line-height: 1.4; }
.brand-strip__name small { display: block; font-family: var(--f-display); font-style: italic; font-weight: 500; letter-spacing: 0; color: #a8853a; font-size: 14px; }

/* 10. 產品 ---------------------------------------------------------------- */
.product { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 7vw, 110px); align-items: center; }
.product + .product { margin-top: clamp(90px, 12vw, 160px); }
.product--reverse .product__media { order: 2; }
.product__index { font-family: var(--f-display); font-size: clamp(80px, 10vw, 150px); line-height: 0.8; color: transparent; -webkit-text-stroke: 1px rgba(40, 71, 52, 0.25); margin-bottom: 18px; }
.product .lead { margin-top: 20px; }
.spec-table { width: 100%; margin-top: 32px; border-collapse: collapse; font-size: 14.5px; }
.spec-table th, .spec-table td { text-align: left; padding: 14px 0; border-bottom: 1px solid var(--c-line); vertical-align: top; }
.spec-table th { width: 34%; font-weight: 500; color: var(--c-green); letter-spacing: 0.08em; padding-right: 16px; }
.spec-table td { color: var(--c-muted); }
.uses { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 8px; }
.product .btn-row { margin-top: 34px; }

/* 11. 製程時間軸 ----------------------------------------------------------- */
.process { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(20px, 2.4vw, 32px); counter-reset: step; }
.process__step { position: relative; padding: 34px 28px 32px; background: rgba(247, 244, 236, 0.04); border: 1px solid rgba(247, 244, 236, 0.14); border-radius: var(--radius-lg); transition: background-color var(--t), border-color var(--t); }
.process__step:hover { background: rgba(247, 244, 236, 0.08); border-color: rgba(214, 177, 90, 0.5); }
.process__step::before { counter-increment: step; content: counter(step, decimal-leading-zero); display: block; font-family: var(--f-display); font-size: 44px; line-height: 1; color: var(--c-gold); margin-bottom: 18px; }
.process__step .h3 { font-size: clamp(18px, 1.5vw, 21px); }
.process__step p { margin-top: 10px; font-size: 14px; color: rgba(247, 244, 236, 0.72); }

.faq { border-top: 1px solid var(--c-line); }
.faq details { border-bottom: 1px solid var(--c-line); }
.faq summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 24px;
  padding: 26px 0; font-family: var(--f-serif); font-weight: 600; font-size: clamp(17px, 1.5vw, 21px); color: var(--c-green); letter-spacing: 0.04em;
}
html[lang="en"] .faq summary { font-family: var(--f-display); font-size: clamp(21px, 1.8vw, 25px); letter-spacing: 0; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--f-sans); font-weight: 300; font-size: 28px; color: #a8853a; transition: transform var(--t); flex-shrink: 0; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq__body { padding: 0 0 28px; color: var(--c-muted); max-width: 820px; }
.faq__body p + p { margin-top: 0.8em; }

/* 12. 物流 ---------------------------------------------------------------- */
.route { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 50px; }
.route::before { content: ""; position: absolute; top: 9px; left: 8%; right: 8%; height: 1px; background: linear-gradient(90deg, transparent, var(--c-gold), transparent); }
.route__city { position: relative; text-align: center; padding-top: 38px; }
.route__city::before { content: ""; position: absolute; top: 0; left: 50%; width: 19px; height: 19px; margin-left: -9.5px; border-radius: 50%; background: var(--c-green-deep); border: 1px solid var(--c-gold); box-shadow: 0 0 0 6px rgba(214, 177, 90, 0.14); }
.route__city::after { content: ""; position: absolute; top: 6px; left: 50%; width: 7px; height: 7px; margin-left: -3.5px; border-radius: 50%; background: var(--c-gold); animation: pulse 2.4s var(--ease) infinite; }
.route__city:nth-child(2)::after { animation-delay: 0.4s; } .route__city:nth-child(3)::after { animation-delay: 0.8s; }
.route__zh { font-family: var(--f-serif); font-size: clamp(22px, 2.2vw, 30px); letter-spacing: 0.24em; color: var(--c-cream); }
.route__en { font-size: 11px; letter-spacing: 0.3em; color: var(--c-gold); text-transform: uppercase; }
.origin-list { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.origin-chip { display: inline-flex; align-items: center; gap: 10px; padding: 10px 18px; border-radius: 999px; border: 1px solid var(--c-line); background: var(--c-white); color: var(--c-green); font-size: 14px; letter-spacing: 0.08em; }
.origin-chip b { font-family: var(--f-display); font-weight: 600; color: #a8853a; letter-spacing: 0.1em; }

/* 13. 聯絡表單 ------------------------------------------------------------- */
.contact-layout { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(40px, 6vw, 96px); align-items: start; }
.contact-info { position: sticky; top: 110px; }
.info-list { margin-top: 36px; border-top: 1px solid var(--c-line); }
.info-list li { display: grid; grid-template-columns: 90px 1fr; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--c-line); font-size: 15px; }
.info-list .k { font-size: 12px; letter-spacing: 0.2em; color: #a8853a; padding-top: 3px; text-transform: uppercase; }
.info-list a:hover { color: #a8853a; }
.form-card { background: var(--c-white); border-radius: var(--radius-lg); padding: clamp(28px, 4vw, 56px); box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 24px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field--full { grid-column: 1 / -1; }
.field label, .field legend { font-size: 13px; letter-spacing: 0.1em; color: var(--c-green); font-weight: 500; }
.field .req { color: #a8853a; margin-left: 4px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 14px 16px; border: 1px solid rgba(40, 71, 52, 0.22); border-radius: 8px; background: var(--c-cream);
  font-size: 15px; transition: border-color var(--t), background-color var(--t), box-shadow var(--t); appearance: none; -webkit-appearance: none;
}
.field select { background-image: linear-gradient(45deg, transparent 50%, var(--c-green) 50%), linear-gradient(135deg, var(--c-green) 50%, transparent 50%); background-position: calc(100% - 22px) 50%, calc(100% - 16px) 50%; background-size: 6px 6px; background-repeat: no-repeat; padding-right: 40px; }
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--c-green); background: var(--c-white); box-shadow: 0 0 0 4px rgba(214, 177, 90, 0.25); }
.field.is-invalid input, .field.is-invalid select, .field.is-invalid textarea { border-color: var(--c-error); background: #fbf1ee; }
.field__error { font-size: 12.5px; color: var(--c-error); min-height: 0; display: none; }
.field.is-invalid .field__error { display: block; }
fieldset.field { border: 0; padding: 0; margin: 0; }
.checks { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.check { position: relative; }
.check input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.check span { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 999px; border: 1px solid rgba(40, 71, 52, 0.22); background: var(--c-cream); font-size: 14px; cursor: pointer; transition: all var(--t); }
.check input:checked + span { background: var(--c-green); color: var(--c-cream); border-color: var(--c-green); }
.check input:focus-visible + span { outline: 2px solid var(--c-gold); outline-offset: 2px; }
.consent { display: flex; gap: 12px; align-items: flex-start; font-size: 13.5px; color: var(--c-muted); }
.consent input { margin-top: 5px; accent-color: var(--c-green); width: 16px; height: 16px; flex-shrink: 0; }
.form-actions { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-top: 30px; }
.form-note { font-size: 12.5px; color: var(--c-muted); }
.form-success { display: none; text-align: center; padding: clamp(30px, 5vw, 60px) 10px; }
.form-success.is-visible { display: block; animation: fadeUp 0.8s var(--ease-out); }
.form-success__icon { width: 76px; height: 76px; margin: 0 auto 26px; border-radius: 50%; background: var(--c-green); color: var(--c-gold); display: grid; place-items: center; }
.form-success__icon svg { width: 34px; height: 34px; stroke-dasharray: 40; stroke-dashoffset: 40; animation: draw 0.8s 0.3s var(--ease-out) forwards; }
.form-success p { color: var(--c-muted); margin-top: 14px; }
.hp-field { position: absolute; left: -9999px; }
.form-error { margin-top: 20px; padding: 14px 18px; border-radius: 10px; background: #fbeaea; color: #8a1f1f; border: 1px solid #e8b4b4; font-size: 14px; line-height: 1.6; }
.form-error[hidden] { display: none; }
button[aria-busy="true"] { opacity: 0.6; cursor: progress; }

/* 14. 頁尾 ---------------------------------------------------------------- */
.site-footer { background: var(--c-green-deep); color: rgba(247, 244, 236, 0.75); padding: clamp(70px, 9vw, 120px) 0 36px; font-size: 14px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 40px; padding-bottom: 60px; border-bottom: 1px solid rgba(247, 244, 236, 0.12); }
.footer-brand .brand-logo { color: var(--c-cream); }
.footer-brand p { margin-top: 22px; max-width: 320px; line-height: 2; }
.footer-title { font-size: 12px; letter-spacing: 0.28em; color: var(--c-gold); text-transform: uppercase; margin-bottom: 20px; }
.footer-links li + li { margin-top: 10px; }
.footer-links a:hover, .footer-contact a:hover { color: var(--c-gold); }
.footer-contact li + li { margin-top: 10px; }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; padding-top: 28px; font-size: 12.5px; color: rgba(247, 244, 236, 0.5); letter-spacing: 0.06em; }
.to-top { display: inline-flex; align-items: center; gap: 8px; background: none; border: 0; color: inherit; cursor: pointer; letter-spacing: 0.2em; font-size: 12px; }
.to-top:hover { color: var(--c-gold); }

/* 15. 動畫 ---------------------------------------------------------------- */
/* 捲動進場：JS 會在元素進入畫面時加上 .is-visible；
   可用 data-delay="1~6" 製造錯落效果 */
.js .reveal { opacity: 0; transform: translateY(40px); transition: opacity 1.1s var(--ease-out), transform 1.1s var(--ease-out); }
.js .reveal--left { transform: translateX(-48px); }
.js .reveal--right { transform: translateX(48px); }
.js .reveal--scale { transform: scale(0.94); }
.js .reveal.is-visible { opacity: 1; transform: none; }
/* 遮罩揭露：裁切套用在子元素上（被觀察的元素本身不可被裁切，否則 IntersectionObserver 不會觸發） */
.js .reveal-mask > * { clip-path: inset(0 0 100% 0); transition: clip-path 1.4s var(--ease-out); }
.js .reveal-mask > * + * { transition-delay: 0.35s; }
.js .reveal-mask.is-visible > * { clip-path: inset(0 0 0 0); }
[data-delay="1"] { transition-delay: 0.1s !important; } [data-delay="2"] { transition-delay: 0.2s !important; }
[data-delay="3"] { transition-delay: 0.3s !important; } [data-delay="4"] { transition-delay: 0.4s !important; }
[data-delay="5"] { transition-delay: 0.5s !important; } [data-delay="6"] { transition-delay: 0.6s !important; }
[data-parallax] { will-change: transform; }

/* 語言切換淡入 */
.lang-switching [data-i18n] { opacity: 0; }
[data-i18n] { transition: opacity 0.25s ease; }

@keyframes heroZoom { to { transform: scale(1); } }
@keyframes lineUp { to { transform: translateY(0); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
@keyframes cue { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(214, 177, 90, 0.6); } 70% { box-shadow: 0 0 0 12px rgba(214, 177, 90, 0); } }
@keyframes draw { to { stroke-dashoffset: 0; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .js .reveal, .js .reveal-mask > * { opacity: 1; transform: none; clip-path: none; }
  .hero__title .line > span { transform: none; }
}

/* 16. 響應式 -------------------------------------------------------------- */
@media (max-width: 1180px) {
  .header-cta { display: none; }
  .main-nav__list { gap: 18px; }
}
@media (max-width: 1024px) {
  :root { --header-h: 72px; }
  .main-nav__list { display: none; }
  .nav-toggle { display: block; }
  .grid-4, .process { grid-template-columns: repeat(2, 1fr); }
  .audience { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--c-line); }
  .brand-strip { grid-template-columns: repeat(3, 1fr); }
  .brand-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .contact-info { position: static; }
  .hero__meta { display: none; }
}
@media (max-width: 820px) {
  .split, .split--wide-left, .split--wide-right, .product, .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .product--reverse .product__media { order: 0; }
  .media-stack .media-frame--small { right: 4%; bottom: -10%; width: 42%; }
  .media-stack { margin-bottom: 40px; }
  .cta-band__inner { flex-direction: column; align-items: flex-start; }
  .route { grid-template-columns: 1fr; gap: 34px; }
  .route::before { top: 0; bottom: 0; left: 9px; right: auto; width: 1px; height: auto; background: linear-gradient(180deg, transparent, var(--c-gold), transparent); }
  .route__city { text-align: left; padding: 0 0 0 46px; }
  .route__city::before { left: 0; margin-left: 0; }
  .route__city::after { left: 6px; margin-left: 0; }
}
@media (max-width: 600px) {
  body { font-size: 15px; }
  .brand-logo__zh { font-size: 18px; }
  .brand-logo__mark { width: 36px; height: 36px; }
  .lang-toggle span { padding: 3px 8px; }
  .grid-4, .process, .audience { grid-template-columns: 1fr; }
  .brand-grid { grid-template-columns: 1fr; }
  .brand-strip { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .info-list li { grid-template-columns: 76px 1fr; }
  .hero .btn-row .btn { width: 100%; justify-content: center; }
  .hero .eyebrow { font-size: 10.5px; letter-spacing: 0.2em; color: var(--c-cream); }
  .hero .eyebrow::before { display: none; }
  .hero__overlay { background: linear-gradient(180deg, rgba(27, 51, 36, 0.6) 0%, rgba(27, 51, 36, 0.35) 40%, rgba(20, 38, 27, 0.92) 100%); }
  .scroll-cue { display: none; }
  .stat__label { font-size: 13px; }
}