/* ============================================================
   Changshu Writing Tool — Multi-page shared stylesheet
   ============================================================ */

:root {
  --paper: #FFFFFF;
  --paper-deep: #F6F6F6;
  --paper-warm: #EDF2F7;
  --ink: #092841;
  --ink-soft: #383E45;
  --ink-body: #495057;
  --ink-light: #6C757D;
  --ink-faint: #ADB5BD;
  --border: #DEE2E6;
  --border-soft: #E9ECEF;
  --accent: #FB6171;
  --accent-deep: #125284;
  --accent-light: #fb717f;
  --max-width: 1240px;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Libre Baskerville', Georgia, serif;
  --font-hand: 'Caveat', cursive;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.03);
  --shadow-md: 0 6px 24px rgba(0,0,0,0.05);
  --shadow-lg: 0 24px 70px rgba(0,0,0,0.09);
  --transition: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  font-family: var(--font-body);
  color: var(--ink-body);
  background: var(--paper);
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}

::selection { background: rgba(251, 97, 113, 0.18); color: var(--ink); }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--paper-deep); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--ink-faint); }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 400; line-height: 1.32; color: var(--accent-deep); }

/* Preloader */
.preloader {
  position: fixed; inset: 0; background: var(--paper); z-index: 20000;
  display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 1.5rem;
  transition: opacity 0.6s var(--transition), visibility 0.6s;
}
.preloader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.preloader-text { display: inline-flex; align-items: center; gap: 0.65rem; font-family: var(--font-display); font-size: 1.1rem; color: var(--accent-deep); letter-spacing: 0.1em; }
.preloader-text img { width: 38px; height: 38px; object-fit: contain; flex: 0 0 38px; }
.preloader-text span { white-space: nowrap; }
.preloader-line { width: 120px; height: 1px; background: var(--border); position: relative; overflow: hidden; }
.preloader-line::after { content: ''; position: absolute; left: -50%; top: 0; width: 50%; height: 100%; background: var(--accent-deep); animation: preload 1.2s ease-in-out infinite; }
@keyframes preload { 0% { transform: translateX(0); } 100% { transform: translateX(300%); } }

/* Progress bar */
.progress-bar { position: fixed; top: 0; left: 0; height: 1.5px; background: var(--accent-deep); z-index: 10001; width: 0%; transition: width 0.1s linear; }

/* Back to top */
.back-to-top {
  position: fixed; bottom: 2rem; right: 2rem; width: 42px; height: 42px; border-radius: 50%;
  background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow-md);
  display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden;
  transform: translateY(12px); transition: all 0.45s var(--transition); z-index: 9998;
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--accent-deep); border-color: var(--accent-deep); transform: translateY(-4px); }
.back-to-top:hover svg { stroke: #fff; }
.back-to-top svg { width: 16px; height: 16px; stroke: var(--ink-light); stroke-width: 1.5; fill: none; transition: stroke 0.3s ease; }

/* Toast */
.toast {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%) translateY(120px);
  background: var(--ink); color: #fff; padding: 0.85rem 1.5rem; border-radius: 2px;
  font-size: 0.82rem; box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden;
  transition: all 0.45s var(--transition); z-index: 10002;
}
.toast.visible { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }

/* Placeholder blocks */
.placeholder-block {
  background: var(--paper-deep); border: 1px dashed var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-faint); font-size: 0.75rem; text-align: center;
  min-height: 220px; padding: 1rem;
}
.placeholder-block--sm { min-height: 80px; }
.placeholder-block--lg { min-height: 360px; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.9s var(--transition), transform 0.9s var(--transition); }
.reveal-active { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.22s; }
.reveal-delay-3 { transition-delay: 0.34s; }

.line-reveal { overflow: hidden; }
.line-reveal > * { transform: translateY(110%); transition: transform 0.9s var(--transition); }
.reveal-active .line-reveal > * { transform: translateY(0); }

/* Navigation */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 1000;
  transition: background 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled { background: rgba(255, 255, 255, 0.96); border-bottom-color: var(--border-soft); backdrop-filter: blur(12px); box-shadow: var(--shadow-sm); }
.nav-inner { max-width: var(--max-width); margin: 0 auto; padding: 1rem 2rem; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; letter-spacing: 0.02em; color: var(--accent-deep); flex-shrink: 0; line-height: 1; }
.nav-logo img { width: 34px; height: 34px; object-fit: contain; flex: 0 0 34px; }
.nav-logo span { white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 2rem; list-style: none; }
.nav-links a {
  font-size: 0.72rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--ink-light); position: relative; padding: 0.3rem 0; transition: color 0.35s ease;
}
.nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 1px; background: var(--accent); transition: width 0.35s var(--transition); }
.nav-links a:hover, .nav-links a.active { color: var(--accent-deep); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

/* Mega menu */
.nav-item-has-menu { position: relative; }
.mega-menu {
  position: absolute; top: calc(100% + 12px); left: 50%; transform: translateX(-50%);
  width: 720px; max-width: 90vw; background: #fff; border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-lg); padding: 1.75rem; opacity: 0; visibility: hidden;
  transition: all 0.35s var(--transition); z-index: 1001;
}
.nav-item-has-menu:hover .mega-menu { opacity: 1; visibility: visible; }
.mega-menu-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.mega-menu-title { font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.14em; color: var(--ink-faint); margin-bottom: 0.75rem; }
.mega-menu-link { display: block; font-size: 0.82rem; color: var(--ink-soft); padding: 0.35rem 0; transition: color 0.25s; }
.mega-menu-link:hover { color: var(--accent); }

.nav-actions { display: flex; align-items: center; gap: 1.25rem; }
.nav-quote {
  position: relative; display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.68rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em;
  color: #fff; padding: 0.65rem 1.1rem; border: 1px solid var(--accent);
  background: var(--accent); transition: all 0.35s ease;
}
.nav-quote:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.nav-quote-count {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 18px; height: 18px; border-radius: 50%; background: #fff;
  color: var(--accent); font-size: 0.6rem; font-weight: 600;
}
.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; padding: 0.5rem; margin: -0.5rem; background: none; border: none; }
.mobile-menu-btn span { display: block; width: 20px; height: 1.5px; background: var(--accent-deep); transition: transform 0.3s ease, opacity 0.3s ease; }
.mobile-menu { position: fixed; inset: 0; background: var(--paper); z-index: 999; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2rem; opacity: 0; visibility: hidden; transition: all 0.45s var(--transition); }
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a { font-family: var(--font-display); font-size: 1.6rem; color: var(--accent-deep); transition: color 0.3s ease; }
.mobile-menu a:hover { color: var(--accent); }
.mobile-menu-close { position: absolute; top: 1.25rem; right: 2rem; background: none; border: none; font-size: 1.75rem; color: var(--accent-deep); }

.hero-video-placeholder {
  position: relative;
  background: linear-gradient(135deg, var(--paper-deep) 0%, var(--paper-warm) 100%);
  border: 1px dashed var(--border);
  min-height: 420px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}
.hero-video-placeholder__icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  padding-left: 4px;
}
.hero-video-placeholder__text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--accent-deep);
  margin-bottom: 0.5rem;
}
.hero-video-placeholder__sub {
  font-size: 0.8rem;
  color: var(--ink-light);
}

@media (max-width: 900px) {
  .hero-video-placeholder { min-height: 300px; }
}

/* Hero (homepage slider) */
.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  overflow: hidden;
  background: var(--paper-deep);
}
.hero-slider { position: relative; width: 100%; height: 100vh; overflow: hidden; }
.hero-slides { display: flex; width: 100%; height: 100%; transition: transform 0.7s var(--transition); }
.hero-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: var(--paper-deep);
}
.hero-slide.is-active { z-index: 1; }
.hero-slide:nth-child(2) { background: #e8f0f7; }
.hero-slide:nth-child(3) { background: #f0f4f8; }
.hero-slide > img {
  display: block;
  width: min(72vw, 960px);
  height: calc(100% - 10rem);
  margin: 7rem auto 3rem;
  object-fit: contain;
  background: #fff;
}
.hero-slide-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-faint);
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: linear-gradient(135deg, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0.1) 100%);
}
.hero-slider-dots { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); display: flex; gap: 0.75rem; z-index: 10; }
.hero-slider-dot { width: 10px; height: 10px; border-radius: 50%; border: 1px solid var(--accent-deep); background: transparent; padding: 0; cursor: pointer; transition: all 0.35s ease; }
.hero-slider-dot.is-active { background: var(--accent-deep); transform: scale(1.2); }
.hero-slider-dot:hover { background: var(--accent-deep); opacity: 0.6; }

/* Page hero (inner pages) */
.page-hero {
  position: relative; padding: 10rem 2rem 5rem;
  background: linear-gradient(160deg, var(--paper-deep) 0%, var(--paper) 100%);
  text-align: center; overflow: hidden;
}
.page-hero-bg { position: absolute; top: -30%; right: -10%; width: 60%; height: 180%; background: rgba(18, 82, 132, 0.04); transform: rotate(-8deg); pointer-events: none; }
.page-hero-inner { max-width: var(--max-width); margin: 0 auto; position: relative; z-index: 1; }
.page-hero-eyebrow { font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.22em; color: var(--accent-deep); margin-bottom: 1rem; }
.page-hero-title { font-size: clamp(2rem, 4.5vw, 3.2rem); margin-bottom: 1rem; }
.page-hero-desc { max-width: 560px; margin: 0 auto; color: var(--ink-body); font-size: 1rem; line-height: 1.75; }

/* Hero stats */
.hero-stats { position: relative; z-index: 2; background: var(--ink); color: #fff; padding: 3rem 2rem; }
.hero-stats-inner { max-width: var(--max-width); margin: 0 auto; }
.hero-stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; text-align: center; }
.hero-stat-number { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3rem); color: #fff; line-height: 1; margin-bottom: 0.5rem; }
.hero-stat-number .placeholder-stat { color: rgba(255,255,255,0.5); font-size: 1.5rem; }
.hero-stat-label { font-size: 0.78rem; color: rgba(255,255,255,0.65); text-transform: uppercase; letter-spacing: 0.12em; }
.hero-stat-note { font-size: 0.7rem; color: rgba(255,255,255,0.4); margin-top: 0.35rem; }

/* Story showcase: video + stats merged */
.story-showcase { margin-top: 4rem; display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: stretch; }
.story-showcase-video { min-height: 320px; }
.story-showcase-video .hero-video-placeholder { height: 100%; min-height: 320px; }
.story-showcase-stats { background: var(--ink); color: #fff; display: flex; align-items: center; justify-content: center; padding: 2.5rem; }

/* Buttons */
.btn-ink {
  display: inline-block; position: relative; padding: 1rem 2.2rem;
  font-size: 0.68rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.14em;
  border: 1px solid var(--accent); background: transparent; color: var(--accent);
  font-family: var(--font-body); cursor: pointer; overflow: hidden;
  transition: color 0.5s var(--transition), letter-spacing 0.5s var(--transition);
  vertical-align: middle;
}
.btn-ink::before { content: ''; position: absolute; inset: 0; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 0.5s var(--transition); z-index: -1; }
.btn-ink:hover { color: #fff; letter-spacing: 0.18em; }
.btn-ink:hover::before { transform: scaleX(1); }
.btn-ink--dark { border-color: var(--ink); color: var(--ink); }
.btn-ink--dark::before { background: var(--ink); }
.btn-ink--white { border-color: #fff; color: #fff; }
.btn-ink--white::before { background: #fff; }
.btn-ink--white:hover { color: var(--ink); }

.btn-solid {
  display: inline-block; padding: 1rem 2.2rem;
  font-size: 0.68rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em;
  background: var(--accent); color: #fff; border: 1px solid var(--accent); transition: all 0.35s ease;
  vertical-align: middle;
}
.btn-solid:hover { background: var(--accent-deep); border-color: var(--accent-deep); }

/* Section label / header */
.section-label { font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.22em; color: var(--accent-deep); margin-bottom: 1rem; }
.section { padding: 6.5rem 2rem; }
.section-inner { max-width: var(--max-width); margin: 0 auto; }
.section-header { max-width: 640px; margin: 0 auto 3.5rem; text-align: center; }
.section-title { font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 0.75rem; }
.section-subtitle { color: var(--ink-body); font-size: 0.95rem; line-height: 1.7; }

/* Poetic */
.section-poetic { text-align: center; padding: 8.5rem 2rem; background: var(--paper); position: relative; }
.section-poetic::before, .section-poetic::after { content: ''; position: absolute; left: 50%; transform: translateX(-50%); width: 1px; height: 3.5rem; background: linear-gradient(180deg, transparent, var(--border), transparent); }
.section-poetic::before { top: 1.25rem; } .section-poetic::after { bottom: 1.25rem; }
.section-poetic p { font-family: var(--font-display); font-size: clamp(1.2rem, 2.4vw, 1.75rem); color: var(--ink-soft); max-width: 700px; margin: 0 auto; line-height: 1.65; }
.section-poetic .author { margin-top: 1.6rem; font-family: var(--font-hand); font-size: 1.35rem; color: var(--accent-deep); }

/* Story */
.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: stretch; }
.story-visuals { display: flex; flex-direction: column; gap: 2rem; height: 100%; }
.story-info { display: flex; flex-direction: column; gap: 2rem; height: 100%; }
.story-card { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 0; align-items: center; }
.story-image { position: relative; overflow: hidden; }
.story-image img { width: 100%; aspect-ratio: 4/3; object-fit: cover; filter: grayscale(30%) contrast(0.9) brightness(0.92); transform: scale(1.05); transition: transform 1.2s var(--transition); }
.reveal-active .story-image img { transform: scale(1); }
.story-image::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(18, 82, 132, 0.1) 0%, transparent 60%); pointer-events: none; }
.story-image::before { content: ''; position: absolute; inset: 1rem -1rem -1rem 1rem; border: 1px solid var(--border); z-index: -1; }
.story-video { flex: 1; display: flex; }
.story-video .hero-video-placeholder { min-height: 260px; height: 100%; width: 100%; }
.story-content { padding: 2.75rem; background: #fff; box-shadow: var(--shadow-md); }
.story-title { font-size: clamp(1.45rem, 2.4vw, 1.9rem); margin-bottom: 1.2rem; }
.story-text { color: var(--ink-body); font-size: 0.92rem; margin-bottom: 1.6rem; line-height: 1.75; }
.story-link { font-size: 0.68rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent-deep); border-bottom: 1px solid var(--accent); padding-bottom: 3px; transition: opacity 0.3s; }
.story-link:hover { opacity: 0.6; }
.story-stats { background: var(--ink); color: #fff; padding: 2.5rem; display: flex; align-items: center; justify-content: center; flex: 1; }
.story-stats .hero-stats-grid { width: 100%; }

/* Category matrix */
.categories-section { background: var(--paper-deep); padding: 6.5rem 2rem; border-top: 1px solid var(--border-soft); }
.categories-inner { max-width: var(--max-width); margin: 0 auto; }
.categories-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.category-card {
  position: relative; background: #fff; border: 1px solid var(--border-soft);
  overflow: hidden; transition: transform 0.5s var(--transition), box-shadow 0.5s var(--transition);
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.category-card__media { height: 220px; display: flex; align-items: center; justify-content: center; background: var(--paper); overflow: hidden; }
.category-card__media img { max-width: 85%; max-height: 85%; width: auto; height: auto; object-fit: contain; transition: transform 0.8s var(--transition); }
.category-card:hover .category-card__media img { transform: scale(1.06); }
.category-card__body { padding: 1.5rem; }
.category-card__title { font-family: var(--font-display); font-size: 1.15rem; color: var(--accent-deep); margin-bottom: 0.35rem; }
.category-card__desc { font-size: 0.8rem; color: var(--ink-light); line-height: 1.55; }
.category-card__link { display: inline-flex; align-items: center; gap: 0.4rem; margin-top: 1rem; font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent); transition: gap 0.3s ease; }
.category-card__link:hover { gap: 0.7rem; }

/* Products */
.products-section { background: var(--paper); padding: 6.5rem 0; position: relative; }
.products-section::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent); }
.products-header { max-width: var(--max-width); margin: 0 auto 2.5rem; padding: 0 2rem; display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 1.5rem; }
.products-title { font-size: clamp(1.45rem, 2.4vw, 1.9rem); margin-bottom: 0.5rem; display: inline-block; }
.products-desc { color: var(--ink-body); font-size: 0.9rem; max-width: 360px; line-height: 1.65; }
.products-controls { display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; }
.product-search { padding: 0.6rem 0.9rem; border: 1px solid var(--border); background: #fff; font-family: var(--font-body); font-size: 0.82rem; color: var(--accent-deep); width: 180px; transition: border-color 0.3s ease, box-shadow 0.3s ease; }
.product-search:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(251, 97, 113, 0.1); }
.product-search::placeholder { color: var(--ink-faint); }
.filter-btn { padding: 0.6rem 0.9rem; border: 1px solid var(--border); background: #fff; font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent-deep); transition: all 0.3s ease; }
.filter-btn:hover, .filter-btn.active { border-color: var(--accent-deep); background: var(--accent-deep); color: #fff; }
.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 1.5rem; max-width: var(--max-width); margin: 0 auto; padding: 0 2rem; }
.product-card { background: #fff; border: 1px solid var(--border-soft); padding: 1.4rem; transition: transform 0.55s var(--transition), box-shadow 0.55s var(--transition); cursor: pointer; position: relative; }
.product-card:hover { transform: translateY(-7px); box-shadow: var(--shadow-lg); }
.product-card.hidden { display: none; }
.product-badge { position: absolute; top: 1rem; right: 1rem; font-size: 0.58rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; padding: 0.35rem 0.6rem; background: var(--accent); color: #fff; z-index: 2; }
.product-image { position: relative; height: 210px; display: flex; align-items: center; justify-content: center; margin-bottom: 1.1rem; background: var(--paper); overflow: hidden; }
.product-image img { max-height: 85%; max-width: 85%; object-fit: contain; opacity: 0; transition: opacity 0.6s ease, transform 0.7s var(--transition); }
.product-image img.loaded { opacity: 1; }
.product-image .img-alt { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.55s ease; }
.product-card:hover .product-image img:first-child { opacity: 0; }
.product-card:hover .product-image .img-alt { opacity: 1; }
.product-card:hover .product-image .img-alt img.loaded { transform: scale(1.05); }
.product-meta-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.4rem; }
.product-number { font-family: var(--font-hand); font-size: 1.1rem; color: var(--accent-deep); }
.product-tag { font-size: 0.58rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-faint); }
.product-name { font-size: 1.05rem; margin-bottom: 0.25rem; font-weight: 700; font-family: var(--font-display); }
.product-spec { font-size: 0.75rem; color: var(--ink-light); margin-bottom: 0.9rem; }
.product-actions { display: flex; gap: 0.5rem; }
.product-btn { flex: 1; padding: 0.55rem 0.4rem; font-size: 0.58rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; border: 1px solid var(--border); background: #fff; color: var(--accent-deep); transition: all 0.35s ease; }
.product-btn:hover { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; }
.product-btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; position: relative; overflow: hidden; }
.product-btn.primary::before { content: ''; position: absolute; inset: 0; background: var(--accent-deep); transform: scaleX(0); transform-origin: left; transition: transform 0.4s var(--transition); z-index: -1; }
.product-btn.primary:hover::before { transform: scaleX(1); }
.product-btn.added { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Process */
.process-section { padding: 5rem 2rem 6.5rem; background: var(--paper); border-top: 1px solid var(--border-soft); }
.process-inner { max-width: var(--max-width); margin: 0 auto; }
.process-header { text-align: center; margin-bottom: 3.5rem; }
.process-title { font-size: clamp(1.4rem, 2.4vw, 1.85rem); margin-bottom: 0.6rem; }
.process-subtitle { color: var(--ink-body); font-size: 0.9rem; }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; position: relative; }
.process-steps::before { content: ''; position: absolute; top: 24px; left: 12.5%; right: 12.5%; height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent); }
.process-step { text-align: center; position: relative; z-index: 1; }
.process-number { width: 48px; height: 48px; border-radius: 50%; background: var(--paper); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; margin: 0 auto 1.25rem; font-family: var(--font-display); font-size: 0.85rem; color: var(--accent-deep); transition: all 0.4s ease; }
.process-step:hover .process-number { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; }
.process-media { width: min(100%, 174px); aspect-ratio: 1; margin: 0 auto 1.1rem; overflow: hidden; border: 1px solid var(--border-soft); background: var(--paper-deep); box-shadow: var(--shadow-sm); }
.process-media img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform 0.55s var(--transition); }
.process-step:hover .process-media img { transform: scale(1.05); }
.process-label { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; margin-bottom: 0.4rem; color: var(--accent-deep); }
.process-desc { font-size: 0.78rem; color: var(--ink-light); line-height: 1.6; }

/* Factory */
.factory-section { background: var(--paper-deep); padding: 6.5rem 2rem; border-top: 1px solid var(--border-soft); }
.factory-inner { max-width: var(--max-width); margin: 0 auto; }
.factory-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-bottom: 3rem; }
.factory-card { background: #fff; border: 1px solid var(--border-soft); padding: 1.5rem; transition: transform 0.4s ease, box-shadow 0.4s ease; }
.factory-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.factory-card__title { font-family: var(--font-display); font-size: 1.1rem; color: var(--accent-deep); margin-bottom: 0.6rem; }
.factory-card__text { font-size: 0.82rem; color: var(--ink-body); line-height: 1.65; margin-bottom: 1.25rem; }
.factory-card__media { margin: -1.5rem -1.5rem 1.25rem; }
.compliance-strip { display: flex; gap: 2rem; justify-content: center; align-items: center; flex-wrap: wrap; padding: 2rem; background: #fff; border: 1px solid var(--border-soft); }
.compliance-item { font-size: 0.75rem; color: var(--ink-light); text-transform: uppercase; letter-spacing: 0.08em; text-align: center; }

/* Techniques */
.techniques-section { background: var(--paper); padding: 6.5rem 2rem; border-top: 1px solid var(--border-soft); }
.techniques-inner { max-width: var(--max-width); margin: 0 auto; }
.techniques-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.technique-item { text-align: center; padding: 1.5rem 0.75rem; border: 1px solid var(--border-soft); background: #fff; transition: all 0.35s ease; }
.technique-item:hover { border-color: var(--accent); transform: translateY(-4px); }
.technique-icon { width: 44px; height: 44px; margin: 0 auto 0.9rem; color: var(--accent-deep); }
.technique-name { font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent-deep); }

/* News */
.news-section { background: var(--paper-warm); padding: 6.5rem 2rem; border-top: 1px solid var(--border-soft); }
.news-inner { max-width: var(--max-width); margin: 0 auto; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.news-card { background: #fff; border: 1px solid var(--border-soft); overflow: hidden; transition: transform 0.4s ease, box-shadow 0.4s ease; }
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.news-card__media { height: 180px; }
.news-card__body { padding: 1.5rem; }
.news-card__date { font-size: 0.65rem; color: var(--ink-faint); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.5rem; }
.news-card__title { font-family: var(--font-display); font-size: 1.05rem; color: var(--accent-deep); margin-bottom: 0.5rem; line-height: 1.35; }
.news-card__excerpt { font-size: 0.8rem; color: var(--ink-light); line-height: 1.55; }

/* Philosophy */
.philosophy { padding: 6.5rem 2rem; background: var(--paper-warm); }
.philosophy-inner { max-width: var(--max-width); margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 4rem; text-align: center; }
.philosophy-item { position: relative; padding: 2rem 1rem; }
.philosophy-item:not(:last-child)::after { content: ''; position: absolute; right: -2rem; top: 15%; height: 70%; width: 1px; background: linear-gradient(180deg, transparent, var(--border), transparent); }
.philosophy-icon { width: 42px; height: 42px; margin: 0 auto 1.1rem; color: var(--accent-deep); }
.philosophy-label { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; color: var(--accent-deep); }
.philosophy-text { font-size: 0.82rem; color: var(--ink-body); line-height: 1.65; }

/* Contact */
.contact-section { padding: 6.5rem 2rem; background: var(--paper-deep); border-top: 1px solid var(--border); }
.contact-inner { max-width: 800px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1.1fr; gap: 3rem; align-items: start; }
.contact-header { margin-bottom: 2rem; }
.contact-title { font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 0.6rem; }
.contact-desc { color: var(--ink-body); font-size: 0.9rem; }
.contact-info { font-size: 0.9rem; color: var(--ink-body); line-height: 1.75; }
.contact-info p { margin-bottom: 1rem; }
.contact-info strong { color: var(--accent-deep); font-weight: 600; }
.contact-form { background: #fff; padding: 2.25rem; border: 1px solid var(--border-soft); box-shadow: var(--shadow-md); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; margin-bottom: 1.1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-light); }
.form-group input, .form-group textarea, .form-group select { padding: 0.8rem 1rem; border: 1px solid var(--border); background: var(--paper); font-family: var(--font-body); font-size: 0.88rem; color: var(--accent-deep); transition: border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease; }
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--accent); background: #fff; box-shadow: 0 0 0 3px rgba(251, 97, 113, 0.1); }
.form-group textarea { min-height: 110px; resize: vertical; }
.form-submit { width: 100%; padding: 0.95rem; background: var(--accent); color: #fff; border: none; font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; transition: background 0.35s ease; position: relative; overflow: hidden; }
.form-submit:hover { background: var(--accent-deep); }
.form-submit.loading { color: transparent; }
.form-submit.loading::after { content: ''; position: absolute; width: 18px; height: 18px; border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff; border-radius: 50%; top: 50%; left: 50%; margin-top: -9px; margin-left: -9px; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(9, 40, 65, 0.55); backdrop-filter: blur(5px); z-index: 2000; display: flex; align-items: center; justify-content: center; padding: 2rem; opacity: 0; visibility: hidden; transition: all 0.35s ease; }
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal { background: var(--paper); max-width: 760px; width: 100%; max-height: 90vh; overflow-y: auto; position: relative; box-shadow: var(--shadow-lg); transform: translateY(24px) scale(0.98); transition: transform 0.4s var(--transition); }
.modal-overlay.open .modal { transform: translateY(0) scale(1); }
.modal-close { position: absolute; top: 1rem; right: 1rem; width: 34px; height: 34px; border: 1px solid var(--border); background: #fff; font-size: 1.1rem; color: var(--accent-deep); display: flex; align-items: center; justify-content: center; z-index: 10; transition: all 0.3s ease; }
.modal-close:hover { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; }
.modal-content { display: grid; grid-template-columns: 1fr 1fr; }
.modal-image { background: #fff; padding: 2rem; display: flex; align-items: center; justify-content: center; }
.modal-image img { max-height: 300px; object-fit: contain; opacity: 0; transition: opacity 0.5s ease; }
.modal-image img.loaded { opacity: 1; }
.modal-info { padding: 2.25rem; display: flex; flex-direction: column; }
.modal-tag { font-size: 0.62rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.14em; color: var(--ink-faint); margin-bottom: 0.7rem; }
.modal-title { font-size: 1.4rem; margin-bottom: 0.9rem; color: var(--accent-deep); }
.modal-desc { font-size: 0.88rem; color: var(--ink-body); line-height: 1.65; margin-bottom: 1.4rem; }
.modal-specs { list-style: none; margin-bottom: 1.4rem; }
.modal-specs li { font-size: 0.78rem; color: var(--ink-light); padding: 0.4rem 0; border-bottom: 1px solid var(--border-soft); display: flex; justify-content: space-between; }
.modal-specs li span:first-child { font-weight: 500; color: var(--ink-soft); }
.modal-actions { margin-top: auto; display: flex; gap: 0.6rem; }

/* Quote bar */
.quote-bar { position: fixed; bottom: 0; left: 0; right: 0; background: #fff; border-top: 1px solid var(--border); box-shadow: 0 -4px 20px rgba(0,0,0,0.05); padding: 0.9rem 2rem; z-index: 9997; transform: translateY(calc(100% + 20px)); visibility: hidden; transition: transform 0.45s var(--transition), visibility 0.45s; }
.quote-bar.visible { transform: translateY(0); visibility: visible; }
.quote-bar-inner { max-width: var(--max-width); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
.quote-info { display: flex; align-items: center; gap: 1rem; }
.quote-count { width: 38px; height: 38px; border-radius: 50%; background: var(--accent); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 0.85rem; }
.quote-text { font-size: 0.88rem; color: var(--ink-body); }
.quote-text strong { color: var(--accent-deep); font-weight: 600; }
.quote-actions { display: flex; gap: 0.6rem; }
.quote-btn { padding: 0.65rem 1.2rem; font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; border: 1px solid var(--border); background: #fff; color: var(--accent-deep); transition: all 0.35s ease; }
.quote-btn:hover { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; }
.quote-btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.quote-btn.primary:hover { background: var(--accent-deep); border-color: var(--accent-deep); }

/* Quote panel */
.quote-panel { position: fixed; top: 0; right: 0; width: 400px; max-width: 90vw; height: 100%; background: var(--paper); box-shadow: -10px 0 40px rgba(0,0,0,0.1); z-index: 3000; transform: translateX(100%); transition: transform 0.45s var(--transition); display: flex; flex-direction: column; }
.quote-panel.open { transform: translateX(0); }
.quote-panel-header { padding: 1.4rem 1.75rem; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.quote-panel-title { font-size: 1.15rem; }
.quote-panel-close { background: none; border: none; font-size: 1.4rem; color: var(--accent-deep); }
.quote-panel-body { flex: 1; overflow-y: auto; padding: 1.25rem 1.75rem; }
.quote-empty { text-align: center; color: var(--ink-faint); font-size: 0.88rem; padding: 3rem 0; }
.quote-item { display: flex; gap: 1rem; padding: 0.9rem 0; border-bottom: 1px solid var(--border-soft); animation: slideIn 0.35s ease; }
@keyframes slideIn { from { opacity: 0; transform: translateX(10px); } to { opacity: 1; transform: translateX(0); } }
.quote-item img { width: 54px; height: 54px; object-fit: contain; background: #fff; border: 1px solid var(--border-soft); padding: 0.2rem; }
.quote-item-info { flex: 1; }
.quote-item-name { font-family: var(--font-display); font-size: 0.9rem; font-weight: 700; color: var(--accent-deep); margin-bottom: 0.15rem; }
.quote-item-spec { font-size: 0.72rem; color: var(--ink-light); }
.quote-item-remove { background: none; border: none; color: var(--ink-faint); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; transition: color 0.3s ease; }
.quote-item-remove:hover { color: var(--accent); }
.quote-panel-footer { padding: 1.4rem 1.75rem; border-top: 1px solid var(--border); background: var(--paper-deep); }
.quote-panel-footer p { font-size: 0.78rem; color: var(--ink-light); margin-bottom: 0.9rem; line-height: 1.55; }
.quote-panel-footer .btn-ink { width: 100%; text-align: center; }

/* Footer */
.footer { background: #092841; padding: 4rem 2rem 2rem; border-top: none; padding-bottom: 6rem; }
.footer-inner { max-width: var(--max-width); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 4rem; }
.footer-brand { display: inline-flex; align-items: center; gap: 0.65rem; font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; margin-bottom: 0.9rem; color: #fff; line-height: 1; }
.footer-brand img { width: 36px; height: 36px; object-fit: contain; flex: 0 0 36px; }
.footer-brand span { white-space: nowrap; }
.footer-desc { font-size: 0.82rem; color: rgba(255, 255, 255, 0.75); line-height: 1.65; max-width: 270px; }
.footer-title { font-size: 0.62rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.14em; margin-bottom: 1.1rem; color: rgba(255, 255, 255, 0.55); }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 0.65rem; }
.footer-links a { font-size: 0.82rem; color: rgba(255, 255, 255, 0.75); transition: color 0.25s; }
.footer-links a:hover { color: var(--accent); }
.social-links { display: flex; gap: 0.65rem; margin-top: 1.1rem; }
.social-links a { width: 32px; height: 32px; border: 1px solid rgba(255, 255, 255, 0.25); border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: all 0.35s ease; }
.social-links a:hover { background: var(--accent); border-color: var(--accent); transform: translateY(-2px); }
.social-links a:hover svg { stroke: #fff; }
.social-links svg { width: 14px; height: 14px; stroke: rgba(255, 255, 255, 0.7); stroke-width: 1.5; fill: none; transition: stroke 0.3s ease; }
.footer-bottom { max-width: var(--max-width); margin: 2.5rem auto 0; padding-top: 1.5rem; border-top: 1px solid rgba(255, 255, 255, 0.15); display: flex; justify-content: space-between; align-items: center; font-size: 0.72rem; color: rgba(255, 255, 255, 0.55); flex-wrap: wrap; gap: 1rem; }

/* Responsive */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .mobile-menu-btn { display: flex; }
  .quote-panel { width: 100%; max-width: 100%; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .techniques-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .factory-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
  .contact-inner { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .hero-slider { height: 70vh; min-height: 480px; }
  .hero-slide { padding: 0; }
  .hero-slide > img { width: min(88vw, 720px); height: calc(100% - 7rem); margin: 5rem auto 2rem; }
  .story-grid { grid-template-columns: 1fr; }
  .story-visuals { gap: 1.5rem; }
  .story-info { gap: 1.5rem; }
  .story-card { grid-template-columns: 1fr; gap: 1.75rem; }
  .story-content { margin-left: 0; margin-top: 0; }
  .story-image { padding-right: 0; }
  .story-image::before { display: none; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .process-steps::before { display: none; }
  .modal-content { grid-template-columns: 1fr; }
  .modal-image { padding: 1.25rem; }
  .modal-info { padding: 1.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .philosophy-inner { grid-template-columns: 1fr; gap: 1.75rem; }
  .philosophy-item:not(:last-child)::after { display: none; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .categories-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .factory-grid { grid-template-columns: 1fr; }
  .techniques-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .products-grid { grid-template-columns: 1fr; }
  .products-controls { width: 100%; }
  .product-search { flex: 1; }
  .process-steps { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .hero { padding-top: 6.5rem; }
  .hero-image { padding: 1.75rem; }
  .back-to-top { bottom: 1.25rem; right: 1.25rem; }
  .quote-bar-inner { flex-direction: column; align-items: stretch; }
  .quote-actions { width: 100%; }
  .quote-btn { flex: 1; }
  .hero-stats-grid { grid-template-columns: 1fr; }
  .techniques-grid { grid-template-columns: 1fr; }
}