@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+TC:wght@400;600;700&family=Noto+Sans+TC:wght@300;400;500&family=Barlow+Condensed:wght@400;500;600;700&display=swap');

/* ==========================================================================
   全域 CSS 變數系統 (藍白律動交錯、大範圍流體漸層與內斂古銅流金系統)
   ========================================================================== */
:root {
  /* 1. 暗藍背景層次系統 - 杜絕死黑，改用有呼吸感的深海/深夜靛藍 */
  --blue-lit:     #13243C;       /* 頂部微光靛藍：漸層的最亮點，帶出空氣感 */
  --blue-mid:     #0A1424;       /* 中段深夜藍 */
  --blue-deep:    #03070D;       /* 底層極致藍黑 */
  --bg-card:      rgba(19, 36, 60, 0.35); /* 暗底卡片：半透明深夜藍，透出大背景的漸層 */
  
  /* 2. 新增：冷冽白與明亮層次系統 (解決整體沉重感的關鍵) */
  --white-bg:     #F4F7FA;       /* 帶有極微量藍灰的頂級冷冽白，絕不刺眼 */
  --white-card:   #FFFFFF;       /* 明亮底卡片：純白立體懸浮感 */
  --white-border: rgba(14, 27, 46, 0.06); /* 白底專用的極細緻壓紋線 */
  
  /* 3. 古銅流金系統 (維持沉穩、高雅的奢華調性，取代刺眼土豪金) */
  --gold-light:   #E2C792;       /* 絲綢古銅金 */
  --gold:         #C5A059;       /* 標準古銅金 */
  --gold-dark:    #8A6623;       /* 深焙古銅 */
  
  /* 4. 線條與分隔線 */
  --border:       rgba(255, 255, 255, 0.04); 
  --border-lit:   rgba(197, 160, 89, 0.25);   
  
  /* 5. 雙重文字色彩系統 */
  --text-pri:     #FFFFFF;       /* 暗底主要文字 */
  --text-sec:     #94A7C0;       /* 暗底次要文字 (帶藍灰調，更和諧) */
  --text-dim:     #4E5F75;       /* 暗底隱蔽文字 */
  
  --text-dark:    #0A1424;       /* 【明亮底專用】主要深色文字 */
  --text-dark-sec:#5A6E85;       /* 【明亮底專用】次要說明文字 */
  
  /* 6. 巨幅放射與線性漸層 (跨度拉大到 160%，極致絲滑) */
  --gradient-hero: linear-gradient(135deg, var(--blue-lit) 0%, var(--blue-mid) 45%, var(--blue-deep) 100%);
  --gradient-glow: radial-gradient(circle at 70% 30%, rgba(19, 36, 60, 0.8) 0%, rgba(10, 20, 36, 0.9) 50%, var(--blue-deep) 160%);
  --gradient-gold: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 50%, var(--gold-dark) 100%);

  /* 7. 版面基礎設定 */
  --radius:       4px;           
  --radius-lg:    12px;          
  --transition:   0.5s cubic-bezier(0.16, 1, 0.3, 1); 
  --container:    1160px;
  --header-h:     80px;
}

/* ==========================================================================
   重置與基本樣式 (Reset & Base)
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--blue-deep);
  background-image: linear-gradient(to bottom, var(--blue-mid), var(--blue-deep));
  background-attachment: fixed;
  color: var(--text-pri);
  font-family: 'Noto Sans TC', sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ==========================================================================
   通用工具類別與大範圍漸層 (Utility & UI Elements)
   ========================================================================== */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 110px 0; position: relative; }
.section-sm { padding: 72px 0; }
.accent { background: var(--gradient-gold); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

/* 巨幅古銅/暗藍星雲底襯 */
.section-gradient-bg {
  background: var(--blue-deep);
  position: relative;
}
.section-gradient-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-glow);
  pointer-events: none;
  z-index: 0;
}
.section-gradient-bg .container { position: relative; z-index: 1; }

/* 古銅微光膠囊標籤 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  background: rgba(197, 160, 89, 0.05);
  border: 1px solid rgba(197, 160, 89, 0.25);
  padding: 4px 14px;
  border-radius: 30px;
  margin-bottom: 24px;
}

/* 區塊大標題 (基礎設定) */
.section-heading {
  font-family: 'Noto Serif TC', serif;
  font-size: clamp(28px, 3.8vw, 40px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-pri);
  margin-bottom: 16px;
}
.section-sub {
  font-size: 15px;
  color: var(--text-sec);
  max-width: 560px;
}

/* 古銅流線 */
.divider {
  width: 50px; height: 2px;
  background: var(--gradient-gold);
  margin: 24px 0;
}

/* 金屬按鈕模組 (高反差) */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: 'Noto Sans TC', sans-serif;
  letter-spacing: 0.05em;
}
.btn-primary {
  background: var(--gradient-gold);
  color: var(--blue-deep); 
  box-shadow: 0 4px 20px rgba(197, 160, 89, 0.15);
}
.btn-primary:hover { 
  transform: translateY(-2px); 
  box-shadow: 0 6px 28px rgba(197, 160, 89, 0.35);
  filter: brightness(1.08);
}
.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1px solid rgba(197, 160, 89, 0.35);
}
.btn-outline:hover { 
  background: var(--gradient-gold); 
  color: var(--blue-deep); 
  border-color: transparent;
  transform: translateY(-2px);
}

/* 信任背書標籤 */
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-sec);
  padding: 6px 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.01);
}
.trust-badge svg { color: var(--gold); flex-shrink: 0; }

/* ==========================================================================
   頁首區塊 (Header)
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(10, 20, 36, 0.85); 
  border-bottom-color: rgba(197, 160, 89, 0.08); 
  backdrop-filter: blur(20px);
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo { display: flex; flex-direction: column; line-height: 1.2; }
.logo-img { height: 44px; width: auto; object-fit: contain; }

.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-zh {
  font-family: 'Noto Serif TC', serif;
  font-size: 19px;
  font-weight: 700;
  color: var(--text-pri);
  letter-spacing: 0.05em;
}
.logo-en {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--gold); 
  text-transform: uppercase;
}

/* 導覽主選單 */
.main-nav { display: flex; align-items: center; gap: 36px; }
.main-nav a {
  font-size: 14px;
  color: var(--text-sec);
  transition: var(--transition);
  position: relative;
}
.main-nav a:hover, .main-nav a.active { color: var(--text-pri); }
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -6px; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-gold);
}
.main-nav a.nav-cta {
  color: var(--gold);
  border: 1px solid rgba(197, 160, 89, 0.3);
  padding: 6px 18px;
  font-size: 13px;
}
.main-nav a.nav-cta:hover {
  background: var(--gradient-gold);
  color: var(--blue-deep);
  border-color: transparent;
}

.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-pri);
  transition: var(--transition);
}

/* ==========================================================================
   【首頁區塊 1】巨幅大範圍藍色漸層 舞台區 (Hero Section - 奢華暗藍底)
   ========================================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--header-h);
  background: var(--gradient-hero); 
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.5;
  z-index: 0;
}
.hero-content { position: relative; z-index: 2; max-width: 760px; }
.hero-number {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.hero-number::after {
  content: '';
  display: block;
  width: 60px; height: 1px;
  background: var(--gold);
}
.hero-h1 {
  font-family: 'Noto Serif TC', serif;
  font-size: clamp(34px, 5.5vw, 62px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-pri);
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}
.hero-h1 em {
  font-style: normal;
  background: var(--gradient-gold); 
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-desc {
  font-size: 16px;
  color: var(--text-sec);
  line-height: 1.9;
  margin-bottom: 44px;
  max-width: 580px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }

/* ==========================================================================
   【首頁區塊 2】服務項目網格 (Services Section - 交錯轉為：冷冽明亮白底)
   ========================================================================== */
#services.section {
  background: var(--white-bg); /* 明亮乾淨的冷冽白襯底 */
  color: var(--text-dark);
}
#services .section-heading { color: var(--text-dark); }
#services .section-sub { color: var(--text-dark-sec); }

.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  background: var(--white-card); /* 純白懸浮感卡片 */
  padding: 48px 36px;
  border: 1px solid var(--white-border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(10, 20, 36, 0.03);
}
.service-card:hover { 
  transform: translateY(-6px); 
  border-color: rgba(197, 160, 89, 0.5); /* 懸停時優雅秀出古銅金框 */
  box-shadow: 0 20px 40px rgba(10, 20, 36, 0.08);
}

.service-icon {
  width: 52px; height: 52px;
  background: rgba(197, 160, 89, 0.06);
  border: 1px solid rgba(197, 160, 89, 0.25);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  color: var(--gold);
  font-size: 24px;
}
.service-num {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 12px;
  color: #B2C0D2;
  letter-spacing: 0.15em;
  margin-bottom: 12px;
}
.service-title {
  font-family: 'Noto Serif TC', serif;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--text-dark);
}
.service-desc {
  font-size: 14px;
  color: var(--text-dark-sec);
  line-height: 1.85;
  margin-bottom: 28px;
}
.service-points li {
  font-size: 13px;
  color: var(--text-dark-sec);
  padding: 8px 0;
  border-top: 1px solid var(--white-border);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.service-points li::before {
  content: '✓';
  color: var(--gold);
  font-weight: 700;
  flex-shrink: 0;
}

/* ==========================================================================
   【首頁區塊 3】工程實績個案 (Cases Section - 交錯轉回：沉穩深邃藍底)
   ========================================================================== */
#cases.section {
  background: var(--blue-deep);
  /* 使用 130% 超大放射漸層，讓暗色區塊有呼吸感、絕不沉重死板 */
  background-image: radial-gradient(circle at 30% 40%, rgba(19, 36, 60, 0.6) 0%, var(--blue-deep) 130%);
  color: var(--text-pri);
}
#cases .section-heading { color: var(--text-pri); }
#cases .section-sub { color: var(--text-sec); }

.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.case-card:hover { border-color: var(--border-lit); transform: translateY(-6px); background: rgba(19, 36, 60, 0.5); }
.case-img {
  height: 220px;
  background: rgba(0,0,0,0.2);
  position: relative;
  overflow: hidden;
}
.case-img img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.8); transition: var(--transition); }
.case-card:hover .case-img img { filter: brightness(0.95); }
.case-tag {
  position: absolute;
  top: 16px; left: 16px;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue-deep);
  background: var(--gradient-gold);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
}
.case-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.case-location { font-size: 11px; color: var(--text-dim); font-family: 'Barlow Condensed', sans-serif; margin-bottom: 10px; letter-spacing: 0.05em; }
.case-title { font-family: 'Noto Serif TC', serif; font-size: 18px; font-weight: 700; margin-bottom: 12px; line-height: 1.5; color: var(--text-pri); }
.case-quote {
  font-size: 13px;
  color: var(--text-sec);
  border-left: 2px solid var(--gold);
  padding-left: 14px;
  font-style: normal;
  line-height: 1.8;
  margin-bottom: 20px;
  flex: 1;
}
.case-link { font-size: 13px; color: var(--gold); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; transition: gap var(--transition); }
.case-link:hover { gap: 10px; }

/* ==========================================================================
   【首頁區塊 4】誠信數據看板 (Trust Section - 交錯轉為：清爽純白底)
   ========================================================================== */
.trust-section {
  background: #FFFFFF; 
  border-top: 1px solid var(--white-border);
  border-bottom: 1px solid var(--white-border);
}
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--white-border); }
.trust-item { background: #FFFFFF; padding: 56px 40px; text-align: center; }
.trust-num {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 56px;
  font-weight: 700;
  background: var(--gradient-gold); 
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 12px;
}
.trust-label { font-size: 14px; color: var(--text-dark-sec); letter-spacing: 0.05em; }

/* ==========================================================================
   【首頁區塊 5】雙欄收網動作區 (CTA Block - 收尾回歸：極致奢華暗藍)
   ========================================================================== */
#cta-section.section {
  background: var(--blue-deep);
}
.cta-block {
  background: linear-gradient(135deg, rgba(19, 36, 60, 0.5) 0%, rgba(3, 7, 13, 0.8) 100%);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(197, 160, 89, 0.15);
  color: var(--text-pri);
  border-radius: var(--radius-lg);
  padding: 72px 64px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(3, 7, 13, 0.6);
}
.cta-block::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(19, 36, 60, 0.4) 0%, transparent 75%);
  pointer-events: none;
}
.cta-item h3 { font-family: 'Noto Serif TC', serif; font-size: 22px; font-weight: 700; margin-bottom: 14px; color: var(--text-pri); }
.cta-item p { font-size: 14px; color: var(--text-sec); line-height: 1.85; margin-bottom: 28px; }
.cta-divider { width: 1px; background: var(--border); position: absolute; top: 56px; bottom: 56px; left: 50%; }

/* ==========================================================================
   獨立內頁 Banner (Page Hero) & 通用元件
   ========================================================================== */
.page-hero {
  padding: 160px 0 90px;
  background: linear-gradient(to bottom, var(--blue-mid) 0%, var(--blue-deep) 100%);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.01) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.01) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.4;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero-eyebrow { font-family: 'Barlow Condensed', sans-serif; font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; font-weight: 600; }
.page-hero h1 { font-family: 'Noto Serif TC', serif; font-size: clamp(30px, 4.5vw, 52px); font-weight: 700; margin-bottom: 18px; line-height: 1.3; color: var(--text-pri); }
.page-hero p { font-size: 16px; color: var(--text-sec); max-width: 560px; line-height: 1.9; }

.pillar { padding: 36px 32px; background: var(--bg-card); backdrop-filter: blur(10px); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.pillar h4 { font-family: 'Noto Serif TC', serif; font-size: 18px; font-weight: 700; margin-bottom: 12px; color: var(--text-pri); }
.pillar p { font-size: 14px; color: var(--text-sec); line-height: 1.85; }

.service-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; padding: 90px 0; border-bottom: 1px solid var(--border); }
.service-detail:last-child { border-bottom: none; }
.service-detail.reverse { direction: rtl; }
.service-detail.reverse > * { direction: ltr; }
.service-detail-visual { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); height: 360px; display: flex; align-items: center; justify-content: center; color: var(--text-dim); font-size: 13px; flex-direction: column; gap: 12px; overflow: hidden; }
.service-detail-visual img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.8); }
.service-detail-title { font-family: 'Noto Serif TC', serif; font-size: clamp(24px, 3.2vw, 32px); font-weight: 700; margin-bottom: 10px; line-height: 1.4; color: var(--text-pri); }
.service-detail-subtitle { font-size: 14px; color: var(--gold); margin-bottom: 24px; font-weight: 600; letter-spacing: 0.05em; }
.service-detail p { font-size: 14px; color: var(--text-sec); line-height: 1.9; margin-bottom: 28px; }
.spec-list li { display: flex; gap: 12px; font-size: 13px; color: var(--text-sec); padding: 10px 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); align-items: flex-start; }
.spec-list li::before { content: '✓'; color: var(--gold); font-weight: 700; flex-shrink: 0; }

.filter-btn { padding: 8px 22px; font-size: 13px; border: 1px solid var(--border); background: rgba(255,255,255,0.01); color: var(--text-sec); border-radius: var(--radius); cursor: pointer; transition: var(--transition); font-family: 'Noto Sans TC', sans-serif; }
.filter-btn:hover, .filter-btn.active { border-color: var(--gold); color: var(--text-pri); background: rgba(197, 160, 89, 0.08); }

/* ==========================================================================
   聯絡我們表單區
   ========================================================================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; }
.contact-card { background: var(--bg-card); backdrop-filter: blur(10px); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 48px 40px; box-shadow: 0 20px 50px rgba(3,7,13,0.5); }
.contact-card h3 { font-family: 'Noto Serif TC', serif; font-size: 22px; font-weight: 700; margin-bottom: 10px; color: var(--text-pri); }
.contact-card .sub { font-size: 14px; color: var(--text-sec); margin-bottom: 32px; line-height: 1.7; }
.contact-method { display: flex; align-items: center; gap: 16px; padding: 18px; background: rgba(0,0,0,0.2); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 14px; transition: var(--transition); }
.contact-method:hover { border-color: var(--gold); background: rgba(19, 36, 60, 0.4); }
.contact-method-icon { width: 40px; height: 40px; background: rgba(255, 255, 255, 0.02); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; color: var(--gold); flex-shrink: 0; }
.contact-method-text small { display: block; font-size: 11px; color: var(--text-dim); margin-bottom: 2px; }
.contact-method-text strong { font-size: 15px; font-weight: 500; color: var(--text-pri); }
.line-btn { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; padding: 15px; background: #06C755; color: #fff; border-radius: var(--radius); font-size: 14px; font-weight: 600; margin-top: 24px; transition: var(--transition); }
.line-btn:hover { background: #05b34c; transform: translateY(-2px); box-shadow: 0 4px 18px rgba(6, 199, 85, 0.3); }

/* ==========================================================================
   部落格與知識庫
   ========================================================================== */
.blog-card { background: var(--bg-card); backdrop-filter: blur(10px); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); }
.blog-card:hover { border-color: rgba(197, 160, 89, 0.25); transform: translateY(-4px); background: rgba(19, 36, 60, 0.5); box-shadow: 0 20px 40px rgba(3,7,13,0.5); }
.blog-card-img { height: 180px; background: rgba(0,0,0,0.1); display: flex; align-items: center; justify-content: center; color: var(--text-dim); font-size: 12px; }
.blog-card-img img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.8); }
.blog-card-body { padding: 28px; }
.blog-meta { display: flex; gap: 14px; font-size: 11px; color: var(--text-dim); font-family: 'Barlow Condensed', sans-serif; margin-bottom: 12px; }
.blog-card-title { font-family: 'Noto Serif TC', serif; font-size: 18px; font-weight: 700; margin-bottom: 10px; line-height: 1.5; color: var(--text-pri); }
.blog-card-excerpt { font-size: 14px; color: var(--text-sec); line-height: 1.8; }

.post-layout { display: grid; grid-template-columns: 1fr 320px; gap: 64px; }
.featured-post-card { display: grid; grid-template-columns: 1.3fr 1fr; gap: 0; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); text-decoration: none; color: inherit; }
.featured-post-card:hover { border-color: rgba(197, 160, 89, 0.25); background: rgba(19, 36, 60, 0.5); box-shadow: 0 20px 40px rgba(3,7,13,0.5); }
.featured-post-img { min-height: 340px; background: rgba(0,0,0,0.1); display: flex; align-items: center; justify-content: center; color: var(--text-dim); font-size: 13px; overflow: hidden; }
.featured-post-img img { width: 100%; height: 100%; object-fit: cover; filter: brightness(0.8); }
.featured-post-body { padding: 48px; display: flex; flex-direction: column; justify-content: center; }

.post-content h2, .post-content h3 { font-family: 'Noto Serif TC', serif; color: var(--text-pri); margin-top: 32px; margin-bottom: 16px; }
.post-content p { font-size: 15px; color: var(--text-sec); line-height: 1.95; margin-bottom: 24px; }
.post-content ul li { font-size: 15px; color: var(--text-sec); line-height: 1.8; padding: 6px 0 6px 24px; position: relative; }
.post-content ul li::before { content: '✓'; position: absolute; left: 0; color: var(--gold); font-weight: 700; }
.sidebar-cta { background: var(--bg-card); border: 1px solid rgba(197, 160, 89, 0.15); border-radius: var(--radius-lg); padding: 32px; }
.sidebar-cta h4 { font-family: 'Noto Serif TC', serif; font-size: 18px; margin-bottom: 12px; color: var(--text-pri); }
.sidebar-cta p { font-size: 14px; color: var(--text-sec); line-height: 1.8; margin-bottom: 24px; }

/* ==========================================================================
   頁尾底座 (Footer - 終點底座)
   ========================================================================== */
.site-footer {
  background: #020408; 
  color: rgba(255,255,255,0.5);
  border-top: 1px solid var(--border);
  padding-top: 80px;
}
.footer-inner { display: grid; grid-template-columns: 1fr 2.2fr; gap: 72px; padding-bottom: 56px; }
.footer-brand .footer-tagline { font-size: 13px; color: var(--text-dim); margin-top: 12px; line-height: 1.75; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.footer-col h4 { font-size: 12px; font-family: 'Barlow Condensed', sans-serif; letter-spacing: 0.15em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 20px; }
.footer-col a { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-sec); margin-bottom: 12px; transition: var(--transition); }
.footer-col a:hover { color: var(--text-pri); }
.footer-col a.line-link { color: #06C755; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.01); padding: 24px 0; }
.footer-bottom .container { display: flex; align-items: center; justify-content: center; font-size: 12px; color: var(--text-dim); }

/* ==========================================================================
   回應式斷點控管 (RWD)
   ========================================================================== */
@media (max-width: 960px) {
  .services-grid, .cases-grid, .trust-grid, .portfolio-grid, .blog-grid { grid-template-columns: 1fr; gap: 20px; }
  .service-detail, .about-pillars { grid-template-columns: 1fr; gap: 40px; }
  .service-detail.reverse { direction: ltr; }
  .cta-block { grid-template-columns: 1fr; gap: 40px; padding: 48px 32px; }
  .cta-divider { display: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .post-layout { grid-template-columns: 1fr; }
  .featured-post-card { grid-template-columns: 1fr; }
  .featured-post-img { min-height: 240px; }
  .featured-post-body { padding: 32px; }
  .footer-inner, .footer-links { grid-template-columns: 1fr; gap: 40px; }
  
  .main-nav {
    position: fixed;
    top: var(--header-h); left: 0; right: 0;
    background: rgba(10, 20, 36, 0.98);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 24px;
    gap: 24px;
    transform: translateY(-120%);
    transition: transform var(--transition);
    backdrop-filter: blur(20px);
  }
  .main-nav.open { transform: translateY(0); }
  .hamburger { display: flex; }
  .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .hamburger.open span:nth-child(2) { opacity: 0; }
  .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

@media (max-width: 600px) {
  .section { padding: 80px 0; }
  .hero-h1 { font-size: 30px; }
  .cta-block { padding: 40px 24px; }
}