@charset "UTF-8";
/* ============================================================
   LUMIÈRE Studio — Interior Design Portfolio
   Modern Minimal / Warm Luxury / Editorial Layout
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --color-bg: #F6F2EC;
  --color-surface: #FFFFFF;
  --color-text: #1F1C18;
  --color-muted: #8C8174;
  --color-muted-dark: #6E6455;
  --color-line: #D8CEC2;
  --color-accent: #A07955;        /* 裝飾線條、邊框、大字（非文字對比 3:1 可過） */
  --color-accent-dark: #8A6644;   /* 按鈕底色（白字 4.9:1） */
  --color-accent-ink: #84613F;    /* 淺底上的小字強調色（4.5:1+） */
  --color-dark: #14110E;
  --color-dark-muted: #B7ADA1;
  --color-dark-text: #F1EBE2;
  --color-error: #B4553F;

  --font-serif: 'Cormorant Garamond', 'Noto Serif TC', 'Source Han Serif TC', serif;
  --font-serif-en: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Noto Sans TC', 'Inter', 'Source Han Sans TC', -apple-system, sans-serif;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.45s;

  --container: 1280px;
  --gutter: clamp(20px, 5vw, 64px);
  --section-gap: clamp(80px, 9vw, 120px);
  --header-h: 84px;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: 0.015em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open, body.modal-open { overflow: hidden; }

img { display: block; max-width: 100%; }
figure { margin: 0; }
ul, ol { list-style: none; }
a { color: inherit; }
button { font: inherit; color: inherit; }
dd { margin: 0; }

::selection { background: var(--color-accent); color: #FFF; }

:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- Typography helpers ---------- */
.eyebrow {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.38em;
  text-transform: uppercase;
  color: var(--color-accent-ink);
}

.section-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.85rem, 3.4vw, 2.7rem);
  line-height: 1.3;
  letter-spacing: 0.01em;
  /* 以 em 控制行長：ch 以拉丁字寬計算，會讓中文提早斷行產生孤行 */
  max-width: 17.5em;
  text-wrap: balance;
}

.section-desc {
  margin-top: 18px;
  max-width: 34em;
  font-size: 0.975rem;
  color: var(--color-muted-dark);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0.95em 2.1em;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    color var(--dur) var(--ease),
    background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.btn-primary {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: #FFF;
}
.btn-primary:hover {
  background: #74532E;
  border-color: #74532E;
  transform: translateY(-2px);
  box-shadow: 0 14px 28px -14px rgba(138, 102, 68, 0.55);
}

.btn-secondary {
  background: transparent;
  border-color: var(--color-text);
  color: var(--color-text);
}
.btn-secondary:hover {
  background: var(--color-text);
  color: var(--color-bg);
  transform: translateY(-2px);
}

.btn-sm { padding: 0.62em 1.5em; font-size: 0.8rem; }

.btn-text {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--color-accent-ink);
  padding-bottom: 4px;
  background: linear-gradient(currentColor, currentColor) no-repeat left bottom / 0% 1px;
  transition: background-size var(--dur) var(--ease);
  cursor: pointer;
}
.btn-text:hover,
.feature:hover .btn-text,
.journal-link:hover .btn-text { background-size: 100% 1px; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 80;
  transition: background-color 0.4s ease, box-shadow 0.4s ease;
}

.site-header.is-scrolled {
  background: rgba(246, 242, 236, 0.86);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--color-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-h);
  transition: height 0.4s ease;
}
.site-header.is-scrolled .header-inner { height: 66px; }

.brand {
  display: flex;
  align-items: baseline;
  gap: 9px;
  text-decoration: none;
  color: var(--color-text);
}
.brand-name {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.45rem;
  letter-spacing: 0.12em;
  line-height: 1;
}
.brand-sub {
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--color-muted-dark);
}

.main-nav ul { display: flex; gap: clamp(20px, 2.6vw, 38px); }
.main-nav a {
  position: relative;
  display: inline-block;
  padding: 6px 0;
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-text);
}
.main-nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur) var(--ease);
}
.main-nav a:hover::after { transform: scaleX(1); transform-origin: left; }

.header-actions { display: flex; align-items: center; gap: 18px; }

.menu-toggle {
  display: none;
  flex-shrink: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-line);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease);
}
.menu-toggle:hover { border-color: var(--color-accent); }
.menu-toggle span {
  width: 18px;
  height: 1.5px;
  background: var(--color-text);
  transition: transform 0.35s var(--ease);
}
.menu-toggle.is-open span:nth-child(1) { transform: translateY(3.75px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { transform: translateY(-3.75px) rotate(-45deg); }

/* ---------- Mobile menu ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 100px var(--gutter) 120px;
  background: var(--color-bg);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s var(--ease), visibility 0s 0.45s;
}
.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.45s var(--ease), visibility 0s 0s;
}

.mobile-menu li + li { border-top: 1px solid var(--color-line); }
.mobile-menu a {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 18px 0;
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 6.5vw, 2.4rem);
  font-weight: 600;
  text-decoration: none;
  color: var(--color-text);
  opacity: 0;
  transform: translateY(16px);
  transition: transform 0.5s var(--ease), opacity 0.5s var(--ease), color 0.3s ease;
}
.mobile-menu.is-open a { opacity: 1; transform: none; }
.mobile-menu.is-open li:nth-child(1) a { transition-delay: 0.08s; }
.mobile-menu.is-open li:nth-child(2) a { transition-delay: 0.14s; }
.mobile-menu.is-open li:nth-child(3) a { transition-delay: 0.2s; }
.mobile-menu.is-open li:nth-child(4) a { transition-delay: 0.26s; }
.mobile-menu.is-open li:nth-child(5) a { transition-delay: 0.32s; }
.mobile-menu a:hover { color: var(--color-accent); }
.mobile-menu a em {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-accent-ink);
}
.mobile-menu a span {
  margin-left: auto;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--color-muted-dark);
}

.mobile-menu-foot {
  position: absolute;
  left: var(--gutter);
  bottom: 40px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-menu-foot a {
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--color-muted-dark);
  text-decoration: none;
}
.mobile-menu-foot a:hover { color: var(--color-accent); }

/* ============================================================
   Hero
   ============================================================ */
.hero { position: relative; overflow: hidden; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: clamp(48px, 6vw, 96px);
  align-items: center;
  min-height: max(85vh, 640px);
  padding-top: calc(var(--header-h) + clamp(24px, 4vh, 56px));
  padding-bottom: clamp(96px, 12vh, 130px);
}
/* 尚未提供 Hero 照片時，改為單欄置中，避免留下空白欄 */
.hero-grid:not(:has(.hero-media)) { grid-template-columns: 1fr; justify-items: center; }
.hero-grid:not(:has(.hero-media)) .hero-copy { max-width: 640px; text-align: center; }
.hero-grid:not(:has(.hero-media)) .hero-actions { justify-content: center; }

.hero-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
}

.hero-title {
  margin-top: 26px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.9rem, 3.6vw, 3.15rem);
  line-height: 1.42;
  letter-spacing: 0.02em;
}

/* 直式（豎排）標題：文字由上而下、欄位由右而左排列 */
.hero-title-vertical {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  height: clamp(320px, 52vh, 520px);
  letter-spacing: 0.08em;
}

.hero-lead {
  margin-top: 26px;
  max-width: 27em;
  font-size: 0.985rem;
  color: var(--color-muted-dark);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 38px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: clamp(40px, 6vh, 60px);
  padding-top: 28px;
  border-top: 1px solid var(--color-line);
}
.stat-num {
  font-family: var(--font-serif-en);
  font-weight: 500;
  font-size: clamp(1.9rem, 2.6vw, 2.6rem);
  line-height: 1.1;
  color: var(--color-text);
}
.hero-stats dd {
  margin-top: 6px;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-muted-dark);
}

.hero-media { position: relative; }
.hero-media::after {
  content: '';
  position: absolute;
  top: -18px;
  right: -18px;
  width: 100%;
  height: 100%;
  border: 1px solid var(--color-line);
  pointer-events: none;
  z-index: -1;
}

.hero-photo {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  box-shadow: 0 44px 88px -44px rgba(31, 28, 24, 0.4);
  will-change: transform;
}
.hero-photo img,
.feature-media img,
.about-photo img,
.about-photo-detail img,
.journal-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-photo-detail {
  position: absolute;
  left: clamp(-64px, -4vw, -24px);
  bottom: -46px;
  width: min(230px, 36%);
  aspect-ratio: 1;
  overflow: hidden;
  border: 8px solid var(--color-bg);
  box-shadow: 0 30px 60px -30px rgba(31, 28, 24, 0.4);
}
.hero-photo-detail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 60% 62%;
}

.hero-scroll {
  position: absolute;
  left: var(--gutter);
  bottom: 26px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 0.6rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--color-muted-dark);
}
.hero-scroll i {
  position: relative;
  width: 1px;
  height: 44px;
  background: var(--color-line);
  overflow: hidden;
}
.hero-scroll i::after {
  content: '';
  position: absolute;
  left: 0;
  top: -50%;
  width: 1px;
  height: 50%;
  background: var(--color-accent);
  animation: scroll-line 2.4s var(--ease) infinite;
}
@keyframes scroll-line {
  0% { top: -50%; }
  100% { top: 110%; }
}

/* ============================================================
   Sections — shared
   ============================================================ */
.section { padding-block: var(--section-gap); }

.section-head { margin-bottom: clamp(44px, 6vw, 72px); }

.section-head-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.section-num {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 1.05rem;
  color: var(--color-accent-ink);
}
.section-head-label .eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
}
.section-head-label .eyebrow::before {
  content: '';
  width: 44px;
  height: 1px;
  background: var(--color-accent);
  opacity: 0.55;
}

/* ============================================================
   Featured Projects
   ============================================================ */
.features {
  display: flex;
  flex-direction: column;
  gap: clamp(64px, 9vw, 120px);
}

.feature {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  cursor: pointer;
}
.feature:nth-child(even) .feature-media { order: 2; }

.feature-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.feature-media img { transition: transform 0.8s var(--ease); }
.feature:hover .feature-media img { transform: scale(1.04); }

.feature-index {
  position: absolute;
  top: 0;
  left: 0;
  padding: 8px 20px 12px 0;
  background: var(--color-bg);
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 1.55rem;
  line-height: 1;
  color: var(--color-accent);
}
.feature:nth-child(even) .feature-index { left: auto; right: 0; padding: 8px 0 12px 20px; }

.feature-cat {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--color-muted-dark);
}
.feature-cat::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--color-accent);
}

.feature-title {
  margin: 16px 0 12px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 2.4vw, 2.05rem);
  line-height: 1.3;
  transition: color var(--dur) var(--ease);
}
.feature:hover .feature-title { color: var(--color-accent); }

.feature-desc {
  max-width: 26em;
  font-size: 0.94rem;
  color: var(--color-muted-dark);
}

.feature-meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 28px 0 26px;
}
.feature-meta > div {
  border-top: 1px solid var(--color-line);
  padding-top: 12px;
}
.feature-meta dt,
.modal-meta dt {
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted-dark);
  margin-bottom: 6px;
}
.feature-meta dd,
.modal-meta dd {
  font-size: 0.9rem;
  font-weight: 500;
}

/* ============================================================
   About
   ============================================================ */
.section-about { position: relative; overflow: hidden; }
.section-about::before {
  content: '鑲杉制作';
  position: absolute;
  top: clamp(16px, 4vw, 56px);
  right: -1%;
  font-family: var(--font-serif);
  font-size: clamp(5rem, 13vw, 11rem);
  line-height: 1;
  letter-spacing: 0.06em;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-line);
  opacity: 0.55;
  pointer-events: none;
  user-select: none;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(40px, 7vw, 104px);
  align-items: center;
}

.about-media { position: relative; padding-bottom: 64px; }
.about-photo {
  width: 86%;
  aspect-ratio: 4 / 5;
  overflow: hidden;
}
.about-photo-detail {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 46%;
  aspect-ratio: 1;
  overflow: hidden;
  border: 10px solid var(--color-bg);
  box-shadow: 0 30px 60px -30px rgba(31, 28, 24, 0.38);
}

.about-copy .section-head { margin-bottom: 8px; }

.about-lead {
  margin-top: 20px;
  font-size: 1.02rem;
  line-height: 2.05;
}

.about-tagline {
  margin-top: 28px;
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 1.18rem;
  letter-spacing: 0.02em;
  color: var(--color-accent-ink);
}

.about-team {
  display: flex;
  flex-wrap: wrap;
  gap: 28px 36px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
}
.about-team-member { display: flex; align-items: center; gap: 14px; }
.about-team-photo {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.about-team p { display: flex; align-items: baseline; gap: 10px; }
.about-team-name {
  font-family: var(--font-serif-en);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.04em;
}
.about-team-role {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted-dark);
}

.values {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(64px, 8vw, 96px);
}

.value-card {
  border-top: 1px solid var(--color-line);
  padding-top: 24px;
}
.value-num {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 1rem;
  color: var(--color-accent-ink);
}
.value-card h3 {
  margin: 12px 0 10px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.22rem;
}
.value-card h3 em {
  margin-right: 8px;
  font-family: var(--font-serif-en);
  font-style: normal;
  font-weight: 500;
  /* 補償 Cormorant 相對 CJK 偏小的視覺字級 */
  font-size: 1.15em;
  letter-spacing: 0.05em;
}
.value-card p { font-size: 0.92rem; color: var(--color-muted-dark); }

/* ============================================================
   Services
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}

.service-card {
  background: var(--color-surface);
  padding: clamp(32px, 4vw, 56px);
  transition: background-color 0.55s var(--ease);
}

.service-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: clamp(28px, 4vw, 48px);
}
.service-num {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 1.5rem;
  color: var(--color-accent);
}
.service-icon {
  width: 44px;
  height: 44px;
  color: var(--color-muted);
  transition: color 0.55s var(--ease);
}

.service-card h3 {
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.3rem;
  transition: color 0.55s var(--ease);
}
.service-card h3 span {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.66rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-muted-dark);
  transition: color 0.55s var(--ease);
}
.service-card p {
  margin-top: 16px;
  font-size: 0.93rem;
  line-height: 1.95;
  color: var(--color-muted-dark);
  transition: color 0.55s var(--ease);
}

.service-card:hover { background: var(--color-dark); }
.service-card:hover h3 { color: var(--color-dark-text); }
.service-card:hover h3 span,
.service-card:hover p { color: var(--color-dark-muted); }
.service-card:hover .service-icon { color: var(--color-accent); }

/* ============================================================
   Process
   ============================================================ */
.process-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 40px);
  row-gap: 48px;
}
.process-grid::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-line);
}

.process-step {
  position: relative;
  padding-top: 36px;
}
.process-step::before {
  content: '';
  position: absolute;
  top: -3.5px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

.process-num {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 2rem;
  line-height: 1;
  color: var(--color-accent);
}
.process-en {
  margin-top: 16px;
  font-size: 0.63rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-muted-dark);
}
.process-step h3 {
  margin: 8px 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.1rem;
}
.process-step p { font-size: 0.85rem; line-height: 1.9; color: var(--color-muted-dark); }

/* ============================================================
   Gallery
   ============================================================ */
.masonry {
  display: grid;
  grid-template-columns: 1fr;
  gap: 64px;
}

.masonry-item {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  overflow: hidden;
  cursor: pointer;
  text-align: left;
  text-decoration: none;
  color: inherit;
  transition: opacity 0.32s ease, transform 0.32s ease;
}
.masonry-item img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 240px;
  transition: transform 0.8s var(--ease);
}
.masonry-item:hover img,
.masonry-item:focus-visible img { transform: scale(1.04); }

.masonry-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-start;
  padding: 24px;
  background: linear-gradient(to top, rgba(20, 17, 14, 0.74), rgba(20, 17, 14, 0) 55%);
  color: var(--color-dark-text);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.masonry-item:hover .masonry-overlay,
.masonry-item:focus-visible .masonry-overlay { opacity: 1; }

.masonry-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.08rem;
  line-height: 1.4;
}
.masonry-title .lat { font-size: 1.12em; }

/* ============================================================
   Journal
   ============================================================ */
.journal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(28px, 3.5vw, 44px);
}

.journal-link { display: block; text-decoration: none; color: inherit; }

.journal-media {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  margin-bottom: 22px;
}
.journal-media img { transition: transform 0.8s var(--ease); }
.journal-link:hover .journal-media img { transform: scale(1.04); }

.journal-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
}
.journal-cat { color: var(--color-accent-ink); }
.journal-meta time { color: var(--color-muted-dark); }
.journal-meta time::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-muted);
  margin-right: 12px;
  vertical-align: middle;
}

.journal-card h3 {
  margin: 13px 0 10px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.22rem;
  line-height: 1.5;
  transition: color var(--dur) var(--ease);
}
.journal-link:hover h3 { color: var(--color-accent-ink); }
.journal-card p { font-size: 0.9rem; color: var(--color-muted-dark); }
.journal-card .btn-text { margin-top: 16px; }

.journal-more {
  text-align: center;
  margin-top: clamp(48px, 6vw, 72px);
}


/* ============================================================
   Contact
   ============================================================ */
.section-contact {
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  padding-block: clamp(88px, 10vw, 140px);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(48px, 7vw, 104px);
  align-items: start;
  max-width: 720px;
}

.contact-en {
  margin: 8px 0 10px;
  font-family: var(--font-serif-en);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(1.4rem, 2.2vw, 1.9rem);
  color: var(--color-accent);
}

.contact-copy .section-head { margin-bottom: 0; }
.contact-lead { margin-top: 22px; color: var(--color-muted-dark); max-width: 26em; }
.contact-lead + .btn { margin-top: 26px; }

.contact-info { margin-top: 40px; }
.contact-info > div {
  display: grid;
  grid-template-columns: 118px 1fr;
  align-items: baseline;
  padding: 16px 0;
  border-top: 1px solid var(--color-line);
}
.contact-info > div:last-child { border-bottom: 1px solid var(--color-line); }
.contact-info dt {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--color-muted-dark);
}
.contact-info dd { font-size: 0.95rem; }
.contact-info a {
  text-decoration: none;
  background: linear-gradient(currentColor, currentColor) no-repeat left bottom / 0% 1px;
  transition: background-size var(--dur) var(--ease), color var(--dur) var(--ease);
}
.contact-info a:hover { color: var(--color-accent-ink); background-size: 100% 1px; }

/* ---------- Map ---------- */
.contact-map-frame {
  overflow: hidden;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--color-line);
}
.contact-map-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}
.contact-map-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.78rem;
  color: var(--color-muted-dark);
  text-decoration: underline;
}
.contact-map-link:hover { color: var(--color-accent-ink); }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-dark);
  color: var(--color-dark-muted);
  padding: clamp(64px, 8vw, 96px) 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(32px, 5vw, 64px);
}

.footer-brand .brand { color: var(--color-dark-text); }
.footer-brand .brand-sub { color: var(--color-dark-muted); }

.footer-desc {
  margin-top: 20px;
  max-width: 21em;
  font-size: 0.88rem;
  line-height: 2;
}

.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 26px;
}
.footer-social a {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-dark-muted);
  transition: color var(--dur) var(--ease);
}
.footer-social a:hover { color: var(--color-dark-text); }

.footer-col h3 {
  margin-bottom: 22px;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-dark-text);
}
.footer-col li { margin-bottom: 12px; font-size: 0.88rem; }
.footer-col a {
  text-decoration: none;
  color: var(--color-dark-muted);
  transition: color var(--dur) var(--ease);
}
.footer-col a:hover { color: var(--color-dark-text); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: clamp(48px, 6vw, 72px);
  padding-top: 28px;
  border-top: 1px solid rgba(241, 235, 226, 0.12);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
}
.footer-motto {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 0.95rem;
}

/* ============================================================
   Back to top
   ============================================================ */
.back-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--color-line);
  background: rgba(255, 255, 255, 0.82);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--color-text);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease),
    border-color var(--dur) var(--ease), color var(--dur) var(--ease),
    visibility 0s var(--dur);
}
.back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease),
    border-color var(--dur) var(--ease), color var(--dur) var(--ease), visibility 0s 0s;
}
.back-top:hover { border-color: var(--color-accent); color: var(--color-accent); }
.back-top svg { width: 18px; height: 18px; }

/* ============================================================
   Quick Nav — 右側作品 & Journal 縮圖導覽
   ============================================================ */
.quick-nav {
  position: fixed;
  top: 128px;
  right: 0;
  bottom: 96px;
  z-index: 55;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  overflow-y: auto;
  padding: 8px 6px;
  scrollbar-width: none;
}
.quick-nav::-webkit-scrollbar { display: none; }

.quick-nav-group-label {
  display: block;
  text-align: right;
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-ink);
  margin: 10px 4px 3px;
}
.quick-nav-group-label:first-child { margin-top: 0; }

.quick-nav-item {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  border: 0;
  background: none;
  padding: 0;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.quick-nav-thumb {
  position: relative;
  flex-shrink: 0;
  width: 32px;
  height: 24px;
  overflow: hidden;
  border-radius: 2px;
  border: 1px solid var(--color-line);
  opacity: 0.72;
  transition: width var(--dur) var(--ease), height var(--dur) var(--ease),
    opacity var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.quick-nav-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.quick-nav-item:hover .quick-nav-thumb,
.quick-nav-item:focus-visible .quick-nav-thumb {
  width: 68px;
  height: 50px;
  opacity: 1;
  box-shadow: 0 10px 24px -10px rgba(31, 28, 24, 0.4);
}

.quick-nav-label {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--color-accent-ink);
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  padding: 3px 10px;
  border-radius: 2px;
  white-space: nowrap;
  opacity: 0;
  transform: translateX(8px);
  pointer-events: none;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.quick-nav-item:hover .quick-nav-label,
.quick-nav-item:focus-visible .quick-nav-label {
  opacity: 1;
  transform: none;
}

@media (max-width: 1023px) {
  .quick-nav { display: none; }
}

/* ============================================================
   Project Modal
   ============================================================ */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  visibility: hidden;
  transition: visibility 0s 0.5s;
}
.modal.is-open { visibility: visible; transition: visibility 0s 0s; }

.modal-scrim {
  position: absolute;
  inset: 0;
  background: rgba(20, 17, 14, 0.6);
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}
.modal.is-open .modal-scrim { opacity: 1; }

.modal-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(1040px, 100%);
  background: var(--color-bg);
  overflow-y: auto;
  overscroll-behavior: contain;
  transform: translateX(60px);
  opacity: 0;
  transition: transform 0.5s var(--ease), opacity 0.5s var(--ease);
  outline: none;
}
.modal.is-open .modal-panel { transform: none; opacity: 1; }

.modal-close {
  position: fixed;
  top: 22px;
  right: 22px;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--color-line);
  background: rgba(246, 242, 236, 0.88);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--color-text);
  cursor: pointer;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    color var(--dur) var(--ease);
}
.modal-close:hover {
  transform: rotate(90deg);
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.modal-close svg { width: 20px; height: 20px; }

.modal-hero {
  overflow: hidden;
}
.modal-hero img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 260px;
}

.modal-body {
  max-width: 880px;
  margin: 0 auto;
  padding: clamp(36px, 5vw, 72px) clamp(24px, 4vw, 48px) clamp(48px, 6vw, 80px);
}

.modal-title {
  margin: 12px 0 30px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.9rem, 4vw, 2.75rem);
  line-height: 1.25;
}

.modal-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 32px;
}
.modal-meta > div {
  border-top: 1px solid var(--color-line);
  padding-top: 12px;
}

.modal-section h3 {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent-ink);
}
.modal-section h3::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-line);
}

.modal-section { margin-bottom: 48px; }
.modal-section > p {
  max-width: 40em;
  font-size: 0.95rem;
  line-height: 2.05;
  color: #4E463A;
}

.modal-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.modal-gallery img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 200px;
}

.modal-next {
  display: grid;
  grid-template-columns: 1fr 28px;
  row-gap: 8px;
  align-items: center;
  width: 100%;
  margin-bottom: 44px;
  padding: 26px 28px;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease);
}
.modal-next:hover { border-color: var(--color-accent); }
.modal-next-label {
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--color-muted-dark);
}
.modal-next-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.25rem;
  transition: color var(--dur) var(--ease);
}
.modal-next:hover .modal-next-title { color: var(--color-accent-ink); }
.modal-next svg {
  grid-column: 2;
  grid-row: 1 / span 2;
  width: 24px;
  height: 24px;
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}
.modal-next:hover svg { transform: translateX(6px); color: var(--color-accent); }

.modal-cta {
  margin-top: 8px;
  padding-top: 44px;
  border-top: 1px solid var(--color-line);
  text-align: center;
}
.modal-cta p {
  margin-bottom: 22px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.3rem;
}

/* ============================================================
   Reveal animations
   ============================================================ */
.js .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.js .reveal.is-visible { opacity: 1; transform: none; }
.js .reveal[data-delay="1"] { transition-delay: 0.1s; }
.js .reveal[data-delay="2"] { transition-delay: 0.2s; }
.js .reveal[data-delay="3"] { transition-delay: 0.3s; }
.js .reveal[data-delay="4"] { transition-delay: 0.4s; }

/* 有 data-stagger 的容器本身不位移，改由子元素逐一浮現 */
.js .reveal[data-stagger] { opacity: 1; transform: none; }
.js [data-stagger] > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.js [data-stagger].is-visible > * { opacity: 1; transform: none; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1180px) {
  .process-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 48px; }
  .process-grid::before { display: none; }
  .process-step { border-top: 1px solid var(--color-line); }
}

@media (max-width: 1023px) {
  .main-nav { display: none; }
  .menu-toggle { display: flex; }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 64px;
    min-height: 0;
    padding-top: calc(var(--header-h) + 24px);
  }
  .hero-media { max-width: 620px; }
  .hero-scroll { display: none; }

  .masonry { gap: 22px; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .feature,
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; }

  .feature { gap: 28px; }
  .feature:nth-child(even) .feature-media { order: 0; }

  .about-grid { gap: 56px; }
  .about-media { max-width: 560px; }

  .journal-grid { grid-template-columns: 1fr; gap: 56px; }
  .journal-card { max-width: 620px; }
}

@media (max-width: 820px) {
  .services-grid { grid-template-columns: 1fr; }
}

@media (max-width: 767px) {
  html { scroll-padding-top: 76px; }
  :root { --header-h: 72px; }

  /* 依規格：Mobile（≤767px）作品卡片為單欄 */
  .masonry { grid-template-columns: 1fr; gap: 18px; }

  .process-grid { grid-template-columns: 1fr; row-gap: 0; }
  .process-grid::before {
    display: block;
    top: 4px;
    bottom: 4px;
    left: 3.5px;
    right: auto;
    width: 1px;
    height: auto;
  }
  .process-step {
    border-top: 0;
    padding: 0 0 40px 32px;
  }
  .process-step:last-child { padding-bottom: 0; }
  .process-step::before { top: 6px; }

  .values { grid-template-columns: 1fr; gap: 32px; }

  .feature-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .hero-photo-detail { bottom: -32px; left: -8px; }

  .footer-bottom { flex-direction: column; }
}

@media (max-width: 600px) {
  /* 窄螢幕 header 瘦身，避免漢堡選單被擠出畫面 */
  .brand-name { font-size: 1.3rem; }
  .brand-sub { display: none; }
  .header-inner { gap: 14px; }
  .header-actions { gap: 12px; }
  .btn-sm { padding: 0.55em 1.1em; font-size: 0.75rem; letter-spacing: 0.08em; }

  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }

  .modal-close { top: 14px; right: 14px; width: 42px; height: 42px; }

  .footer-grid { grid-template-columns: 1fr; gap: 40px; }

  .contact-info > div { grid-template-columns: 96px 1fr; }
}

@media (min-width: 1024px) {
  /* 桌機不顯示行動選單（含視窗跨斷點放大時仍開啟的情況） */
  .mobile-menu { display: none; }
}

/* ============================================================
   Journal — Article page
   ============================================================ */
.post-hero {
  position: relative;
  height: clamp(280px, 46vw, 560px);
  margin-top: var(--header-h);
  overflow: hidden;
}
.post-hero img { width: 100%; height: 100%; object-fit: cover; }

.post-header {
  max-width: 720px;
  margin-inline: auto;
  padding-block: clamp(36px, 6vw, 60px) clamp(20px, 4vw, 36px);
}

.post-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-muted-dark);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.post-back:hover { color: var(--color-accent-ink); }
.post-back svg { width: 15px; height: 15px; }

.post-eyebrow { margin-top: 30px; }
.post-title {
  margin-top: 14px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  line-height: 1.5;
}
.post-byline {
  margin-top: 18px;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--color-muted-dark);
}

.post-body {
  max-width: 720px;
  margin-inline: auto;
  padding-bottom: clamp(64px, 8vw, 100px);
}
.post-body h2 {
  margin-top: clamp(36px, 5vw, 52px);
  margin-bottom: 4px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.2rem;
}
.post-body p {
  margin-top: 20px;
  font-size: 0.98rem;
  line-height: 2;
  color: var(--color-text);
}
.post-body p:first-of-type { margin-top: 0; }
.post-body a { color: var(--color-accent-ink); }

.post-figure { margin-top: clamp(28px, 5vw, 44px); }
.post-figure img { width: 100%; display: block; }

.post-footer-nav {
  max-width: 720px;
  margin: clamp(48px, 7vw, 72px) auto 0;
  padding-top: 30px;
  border-top: 1px solid var(--color-line);
  text-align: center;
}

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .js .reveal,
  .js [data-stagger] > * {
    opacity: 1 !important;
    transform: none !important;
  }
}