/* ===================================================
   玉盘食品 — Shared Stylesheet
   =================================================== */

/* ---------- CSS Variables ---------- */
:root {
  --green:      #3a7d44;
  --green-dark: #2d6235;
  --green-light:#e8f5e9;
  --gold:       #c9a84c;
  --gold-light: #fdf6e3;
  --bg:         #f8f9fa;
  --white:      #ffffff;
  --text:       #2c3e50;
  --text-light: #6c757d;
  --border:     #dee2e6;
  --shadow:     0 2px 12px rgba(0,0,0,.08);
  --radius:     8px;
  --max-w:      1200px;
  --transition: .25s ease;
}

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

html { scroll-behavior: smooth; font-size: 20px; }

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 20px;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
}

img { max-width: 100%; height: auto; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---------- Typography helpers ---------- */
.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  text-align: center;
  margin-bottom: .5rem;
}
.section-title span { color: var(--green); }
.section-subtitle {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 2.5rem;
  font-size: .95rem;
}
.section-divider {
  width: 48px; height: 3px;
  background: var(--gold);
  margin: .6rem auto 1.2rem;
  border-radius: 2px;
}

/* ---------- Layout Utilities ---------- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }
.section    { padding: 5rem 0; }
.section-alt { background: var(--white); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }

/* ---------- Header / Navigation ---------- */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 6px rgba(0,0,0,.06);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 80px;
}
.logo {
  font-size: 1.2rem; font-weight: 700;
  color: var(--green);
  letter-spacing: .02em;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--gold);
  white-space: nowrap;
}
.logo small {
  display: block; font-size: .75rem; font-weight: 400;
  color: var(--text-light); letter-spacing: .05em;
  margin-top: -2px;
  border-bottom: none;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links > li {
  position: relative;
}
.nav-links a {
  display: block;
  font-size: .9rem; font-weight: 500;
  color: var(--text); position: relative;
  padding-bottom: 2px; transition: color var(--transition);
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; background: var(--green);
  transition: width var(--transition);
}
.nav-links a:hover, .nav-links a.active {
  color: var(--green);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-has-submenu > a {
  padding-right: .95rem;
}
.nav-has-submenu > a::before {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-65%) rotate(45deg);
  transition: transform var(--transition);
}
.nav-has-submenu:hover > a::before,
.nav-has-submenu:focus-within > a::before {
  transform: translateY(-35%) rotate(225deg);
}
.nav-submenu {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  min-width: 170px;
  padding: .55rem;
  border: 1px solid rgba(58,125,68,.14);
  border-radius: var(--radius);
  background: rgba(255,255,255,.98);
  box-shadow: 0 14px 34px rgba(0,0,0,.12);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -6px);
  transition: opacity var(--transition), transform var(--transition);
  visibility: hidden;
}
.nav-submenu::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: -16px;
  height: 16px;
}
.nav-has-submenu:hover .nav-submenu,
.nav-has-submenu:focus-within .nav-submenu {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
  visibility: visible;
}
.nav-submenu a {
  border-radius: 6px;
  color: var(--text-light);
  font-size: .82rem;
  padding: .55rem .75rem;
  white-space: nowrap;
}
.nav-submenu a::after {
  display: none;
}
.nav-submenu a:hover,
.nav-submenu a:focus {
  background: var(--green-light);
  color: var(--green);
}

/* Hamburger */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; background: none; border: none; padding: 4px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero Carousel ---------- */
.hero {
  position: relative; overflow: hidden;
  height: 520px; background: #1a1a1a;
}
.hero-slide {
  position: absolute; inset: 0;
  opacity: 0; transition: opacity .8s ease;
}
.hero-slide.active { opacity: 1; }
.hero-slide img {
  width: 100%; height: 100%;
  object-fit: cover; opacity: .55;
}
.hero-content {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center; color: var(--white); padding: 1rem;
}
.hero-content h1 {
  font-size: 2.4rem; font-weight: 700;
  line-height: 1.3; margin-bottom: 1rem;
  text-shadow: 0 2px 8px rgba(0,0,0,.4);
}
.hero-content p {
  font-size: 1.05rem; margin-bottom: 1.8rem; opacity: .9;
  text-shadow: 0 1px 4px rgba(0,0,0,.3);
}
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }
.hero-dots {
  position: absolute; bottom: 16px; left: 50%;
  transform: translateX(-50%); display: flex; gap: 8px;
}
.hero-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,.5); cursor: pointer; border: none;
  transition: background var(--transition);
}
.hero-dot.active { background: var(--white); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; padding: .7rem 1.8rem;
  border-radius: 4px; font-size: .9rem; font-weight: 600;
  cursor: pointer; border: 2px solid transparent;
  transition: all var(--transition);
}
.btn-primary {
  background: var(--green); color: var(--white);
  border-color: var(--green);
}
.btn-primary:hover { background: var(--green-dark); border-color: var(--green-dark); }
.btn-outline {
  background: transparent; color: var(--white);
  border-color: var(--white);
}
.btn-outline:hover { background: var(--white); color: var(--green); }
.btn-green-outline {
  background: transparent; color: var(--green);
  border-color: var(--green);
}
.btn-green-outline:hover { background: var(--green); color: var(--white); }

/* ---------- Cards ---------- */
.card {
  background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.card-body { padding: 1.5rem; }
.card-title { font-size: 1.05rem; font-weight: 700; margin-bottom: .5rem; }
.card-text  { color: var(--text-light); font-size: .9rem; line-height: 1.6; }

/* ---------- Pillar / Feature Cards ---------- */
.pillar-card {
  background: var(--white); border-radius: var(--radius);
  padding: 2rem 1.5rem; text-align: center;
  box-shadow: var(--shadow);
  border-top: 3px solid var(--green);
  transition: transform var(--transition);
}
.pillar-card:hover { transform: translateY(-4px); }
.pillar-icon {
  width: 56px; height: 56px; margin: 0 auto 1rem;
  background: var(--green-light); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.pillar-icon svg { width: 28px; height: 28px; fill: var(--green); }
.pillar-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: .4rem; }
.pillar-card p  { font-size: .88rem; color: var(--text-light); }

/* ---------- Stats Counter ---------- */
.stats-bar {
  background: var(--green); color: var(--white);
  padding: 3rem 0;
}
.stats-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1rem; text-align: center;
}
.stat-item h2 {
  font-size: 2.2rem; font-weight: 700;
  color: var(--white);
}
.stat-item h2 span { color: var(--gold); }
.stat-item p { font-size: .88rem; opacity: .85; margin-top: .3rem; }

/* ---------- Sunshine Badge ---------- */
.sunshine-banner {
  background: linear-gradient(135deg, var(--gold), #e8c96a);
  padding: 2.5rem 0;
}
.sunshine-inner {
  display: flex; align-items: center; gap: 2rem;
  justify-content: center; flex-wrap: wrap; text-align: center;
}
.sunshine-badge {
  background: var(--white); border-radius: var(--radius);
  padding: 1rem 2rem;
  font-size: 1.15rem; font-weight: 700; color: var(--green);
  box-shadow: 0 4px 12px rgba(0,0,0,.1);
}
.sunshine-text h3 { font-size: 1.2rem; color: var(--text); margin-bottom: .3rem; }
.sunshine-text p  { font-size: .9rem; color: var(--text-light); }

/* ---------- Partners Strip ---------- */
.partners-strip { padding: 3rem 0; border-top: 1px solid var(--border); }
.partners-label {
  text-align: center; color: var(--text-light);
  font-size: .8rem; letter-spacing: .1em;
  text-transform: uppercase; margin-bottom: 1.2rem;
}
.partners-list {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: .6rem 1rem;
}
.partners-list span {
  background: var(--white); border: 1px solid var(--border);
  border-radius: 20px; padding: .3rem 1rem;
  font-size: .82rem; color: var(--text-light);
}

/* ---------- Timeline ---------- */
.timeline { position: relative; padding: 1rem 0; }
.timeline::before {
  content: ''; position: absolute;
  left: 50%; top: 0; bottom: 0; width: 2px;
  background: var(--border); transform: translateX(-50%);
}
.timeline-item {
  display: flex; gap: 2rem;
  margin-bottom: 2rem; position: relative;
}
.timeline-item:nth-child(odd)  { flex-direction: row; }
.timeline-item:nth-child(even) { flex-direction: row; }
.timeline-content {
  flex: 1; background: var(--white);
  border-radius: var(--radius); padding: 1.2rem 1.5rem;
  box-shadow: var(--shadow);
}
.timeline-year {
  display: inline-block; background: var(--green);
  color: var(--white); font-weight: 700; font-size: .85rem;
  padding: .2rem .7rem; border-radius: 12px; margin-bottom: .5rem;
}
.timeline-dot {
  position: absolute; left: 50%; top: 1.2rem;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--gold); border: 3px solid var(--white);
  transform: translateX(-50%);
  box-shadow: 0 0 0 3px var(--gold);
}
.timeline-spacer { flex: 1; }
.timeline-content h3 { font-size: .95rem; font-weight: 700; margin-bottom: .3rem; }
.timeline-content p  { font-size: .88rem; color: var(--text-light); }

/* ---------- Cert / Photo Grid ---------- */
.cert-category {
  margin-top: 2.2rem;
}
.cert-category-title {
  display: flex;
  align-items: center;
  gap: .7rem;
  color: var(--green-dark);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.cert-category-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(58,125,68,.32), rgba(58,125,68,0));
}
.cert-category-empty {
  border: 1px dashed rgba(58,125,68,.25);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(232,245,233,.72), rgba(255,255,255,.9));
  color: var(--text-light);
  font-size: .86rem;
  padding: 1rem 1.2rem;
}
.qualification-feature {
  background: var(--white);
  border: 1px solid rgba(58,125,68,.14);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin: 0 auto;
  max-width: 920px;
  padding: 1.1rem;
}
.qualification-feature-image {
  box-shadow: 0 3px 16px rgba(0,0,0,.08);
}
.qualification-feature-image img {
  background: #f7f7f5;
  max-height: 520px;
  object-fit: contain;
  width: 100%;
}
.qualification-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.4rem;
}
.qualification-grid .cert-item img {
  background: #f7f8f7;
  height: 360px;
  object-fit: contain;
  width: 100%;
}
.honor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.honor-grid .cert-item img {
  background: #fffaf0;
  height: 300px;
  object-fit: contain;
  width: 100%;
}
.certification-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
}
.certification-card {
  background: var(--white);
  border: 1px solid rgba(58,125,68,.14);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}
.certification-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .8rem;
}
.certification-pair .cert-item {
  box-shadow: 0 2px 10px rgba(0,0,0,.07);
}
.certification-pair .cert-item img {
  background: #f6f7f8;
  height: 300px;
  object-fit: contain;
  width: 100%;
}
.certification-note {
  border-top: 1px solid rgba(58,125,68,.12);
  color: var(--text-light);
  font-size: .8rem;
  line-height: 1.65;
  margin-top: .9rem;
  padding-top: .75rem;
}
.cert-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.cert-item {
  cursor: pointer; border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  transition: transform var(--transition);
}
.cert-item:hover { transform: scale(1.03); }
.cert-item img { width: 100%; height: auto; object-fit: contain; }
.cert-item-label {
  background: var(--white); padding: .5rem .75rem;
  font-size: .8rem; text-align: center; color: var(--text-light);
}

/* ---------- Lightbox ---------- */
.lightbox-overlay {
  display: none; position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,.85); align-items: center; justify-content: center;
}
.lightbox-overlay.open { display: flex; }
.lightbox-overlay img {
  max-width: 90vw; max-height: 90vh;
  border-radius: var(--radius); box-shadow: 0 0 40px rgba(0,0,0,.5);
}
.lightbox-close {
  position: absolute; top: 1rem; right: 1.5rem;
  font-size: 2rem; color: var(--white); cursor: pointer;
  background: none; border: none; line-height: 1;
}

/* ---------- Team Section ---------- */
.team-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.team-card {
  background: var(--white); border-radius: var(--radius);
  padding: 1.5rem; box-shadow: var(--shadow);
  border-left: 4px solid var(--green);
}
.team-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: .8rem; color: var(--green); }
.team-card li {
  font-size: .88rem; color: var(--text-light);
  padding: .2rem 0; display: flex; align-items: center; gap: .5rem;
}
.team-card li::before { content: '•'; color: var(--gold); }

/* ---------- Product Category Cards ---------- */
.product-card {
  background: var(--white); border-radius: var(--radius);
  padding: 1.8rem 1.5rem; text-align: center;
  box-shadow: var(--shadow); border-bottom: 3px solid transparent;
  transition: all var(--transition);
}
.product-card:hover { border-bottom-color: var(--green); transform: translateY(-4px); }
.product-icon { font-size: 2.2rem; margin-bottom: .8rem; }
.product-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: .5rem; }
.product-card p  { font-size: .85rem; color: var(--text-light); }

.service-carousel {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

.service-carousel-slide {
  display: none;
}

.service-carousel-slide.active {
  display: block;
}

.service-carousel-slide img {
  height: 360px;
  object-fit: cover;
  width: 100%;
}

.service-carousel-slide figcaption {
  color: var(--text-light);
  font-size: .9rem;
  line-height: 1.5;
  padding: .8rem 1rem;
  text-align: center;
}

.service-carousel-dots {
  display: flex;
  gap: .45rem;
  justify-content: center;
  padding: 0 1rem 1rem;
}

.service-carousel-dot {
  background: var(--border);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  height: 9px;
  transition: background var(--transition), transform var(--transition);
  width: 9px;
}

.service-carousel-dot.active {
  background: var(--green);
  transform: scale(1.15);
}

/* ---------- Supply Chain Diagram ---------- */
.supply-chain {
  display: flex; align-items: center;
  justify-content: center; flex-wrap: wrap;
  gap: 0; margin: 2rem 0;
}
.chain-step {
  background: var(--green); color: var(--white);
  border-radius: var(--radius); padding: 1rem 1.5rem;
  text-align: center; min-width: 110px;
}
.chain-step .chain-icon { font-size: 1.4rem; margin-bottom: .3rem; }
.chain-step p { font-size: .82rem; font-weight: 600; }
.chain-arrow {
  color: var(--green); font-size: 1.5rem; padding: 0 .5rem;
}

/* ---------- Quality Pillars ---------- */
.quality-pillar {
  display: flex; gap: 1.5rem; align-items: flex-start;
  background: var(--white); border-radius: var(--radius);
  padding: 2rem; box-shadow: var(--shadow); margin-bottom: 1.5rem;
}
.quality-num {
  flex-shrink: 0; width: 48px; height: 48px;
  background: var(--green); color: var(--white);
  border-radius: 50%; display: flex; align-items: center;
  justify-content: center; font-size: 1.2rem; font-weight: 700;
}
.quality-text h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: .4rem; }
.quality-text p  { font-size: .9rem; color: var(--text-light); }

/* ---------- Cases Filter ---------- */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: .6rem;
  justify-content: center; margin-bottom: 2.5rem;
}
.filter-btn {
  padding: .5rem 1.4rem; border-radius: 20px;
  border: 1.5px solid var(--border); background: var(--white);
  font-size: .88rem; cursor: pointer; transition: all var(--transition);
  font-family: inherit;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--green); color: var(--white);
  border-color: var(--green);
}

/* Case cards grid */
.cases-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.case-card { display: block; }
.case-card[hidden] { display: none; }
.case-card .card-body { padding: 1.4rem; }
.case-badge {
  display: inline-block; padding: .2rem .7rem;
  border-radius: 12px; font-size: .75rem; font-weight: 600;
  margin-bottom: .8rem;
}
.badge-school  { background: #e3f2fd; color: #1565c0; }
.badge-govt    { background: #fce4ec; color: #c62828; }
.badge-medical { background: #e8f5e9; color: #2e7d32; }
.badge-hotel   { background: #fff8e1; color: #f57f17; }
.case-card h3  { font-size: .95rem; font-weight: 700; margin-bottom: .6rem; }
.case-meta {
  font-size: .82rem; color: var(--text-light);
  display: flex; flex-direction: column; gap: .25rem;
}
.case-value {
  font-size: 1.1rem; font-weight: 700; color: var(--green);
  margin-top: .5rem;
}
.verified-badge {
  display: inline-flex; align-items: center; gap: .3rem;
  font-size: .75rem; color: var(--gold); margin-top: .6rem;
  font-weight: 600;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 3rem; align-items: start;
}
.contact-form label {
  display: block; font-size: .88rem; font-weight: 600;
  margin-bottom: .3rem; color: var(--text);
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%; padding: .7rem 1rem;
  border: 1.5px solid var(--border); border-radius: var(--radius);
  font-size: .9rem; font-family: inherit; color: var(--text);
  background: var(--white); margin-bottom: 1rem;
  transition: border-color var(--transition);
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none; border-color: var(--green);
}
.contact-form textarea { height: 120px; resize: vertical; }
.contact-info-block h3 {
  font-size: 1.1rem; font-weight: 700; margin-bottom: 1.2rem;
  padding-bottom: .6rem; border-bottom: 2px solid var(--gold);
}
.contact-info-row {
  display: flex; gap: .8rem; align-items: flex-start;
  margin-bottom: 1rem; font-size: .9rem;
}
.contact-info-row .ci-icon {
  flex-shrink: 0; width: 36px; height: 36px;
  background: var(--green-light); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
}
.map-frame {
  width: 100%; height: 240px; border: none;
  border-radius: var(--radius); margin-top: 1rem;
}

/* ---------- Page Hero (inner pages) ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--green-dark), var(--green));
  color: var(--white); padding: 5.5rem 0; text-align: center;
}
.page-hero h1 { font-size: 2rem; margin-bottom: .5rem; }
.page-hero p  {
  line-height: 1.8;
  margin: 0 auto;
  max-width: 820px;
  opacity: .85;
  font-size: .95rem;
}
.breadcrumb {
  font-size: .8rem; opacity: .7; margin-top: .5rem;
}
.breadcrumb a { color: var(--white); text-decoration: underline; }

.contact-hero-statement {
  position: relative;
  margin: 1.3rem auto 0;
  max-width: 880px;
  padding: 1.25rem 1.6rem 1.25rem 2.1rem;
  border: 1px solid rgba(255,255,255,.28);
  border-left: 4px solid var(--gold);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(255,255,255,.16), rgba(255,255,255,.08));
  box-shadow: 0 18px 38px rgba(0,0,0,.16);
  text-align: left;
}
.contact-hero-statement::before {
  content: '“';
  position: absolute;
  top: -.2rem;
  left: .75rem;
  color: rgba(255,255,255,.32);
  font-family: Georgia, serif;
  font-size: 4.2rem;
  line-height: 1;
}
.contact-hero-statement p {
  position: relative;
  line-height: 1.9;
  margin: 0;
  max-width: none;
  opacity: .94;
  font-size: .95rem;
}
.contact-hero-statement p + p {
  margin-top: .55rem;
}

.about-section-nav {
  position: sticky;
  top: 80px;
  z-index: 900;
  background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(248,249,250,.96));
  border-bottom: 3px solid rgba(58,125,68,.24);
  box-shadow: 0 12px 30px rgba(58,125,68,.08), 0 4px 18px rgba(0,0,0,.05);
  backdrop-filter: blur(10px);
}
.about-section-nav ul {
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  gap: .35rem;
  overflow-x: auto;
  padding: .8rem 0 0;
  scrollbar-width: none;
}
.about-section-nav ul::-webkit-scrollbar { display: none; }
.about-section-nav a {
  position: relative;
  display: block;
  min-width: 112px;
  border: 1px solid rgba(58,125,68,.22);
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
  background: linear-gradient(135deg, #f9fffa 0%, #edf8ef 58%, #dcefe0 100%);
  color: var(--green-dark);
  font-size: .82rem;
  font-weight: 600;
  line-height: 1.2;
  padding: .55rem .85rem .62rem;
  text-align: center;
  white-space: nowrap;
  box-shadow: 0 -1px 0 rgba(255,255,255,.8) inset, 0 3px 8px rgba(58,125,68,.07);
  transform: translateY(1px);
  transition: color var(--transition), background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.about-section-nav a:hover {
  background: linear-gradient(135deg, var(--white) 0%, #edf8ef 45%, #cfe8d4 100%);
  color: var(--green);
  box-shadow: 0 -1px 0 rgba(255,255,255,.9) inset, 0 6px 14px rgba(58,125,68,.12);
  transform: translateY(-2px);
}
#company-overview,
#company-environment,
#development-timeline,
#certificates,
#team {
  scroll-margin-top: 132px;
}

.company-overview-grid {
  align-items: start;
  gap: 2.5rem;
  grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr);
  margin-top: 2rem;
}

.company-front-image {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  width: 92%;
}

.home-solution-image {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
}

.home-solution-grid {
  align-items: center;
  gap: 2rem;
  grid-template-columns: minmax(260px, .55fr) minmax(0, 1.45fr);
}

.home-solution-image {
  max-width: none;
  width: 100%;
}


/* ---------- CTA Banner ---------- */
.cta-banner {
  background: var(--text); color: var(--white);
  padding: 4rem 0; text-align: center;
}
.cta-banner h2 { font-size: 1.6rem; margin-bottom: .8rem; }
.cta-banner p  { opacity: .75; margin-bottom: 1.8rem; }

/* ---------- Footer ---------- */
.site-footer {
  background: #1d2d1e; color: rgba(255,255,255,.75);
  padding: 3rem 0 1.5rem;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem; margin-bottom: 2rem;
}
.footer-brand .logo { color: #7dc98a; border-bottom-color: var(--gold); }
.footer-brand p { font-size: .85rem; margin-top: .8rem; opacity: .7; line-height: 1.7; }
.footer-col h4 {
  color: var(--white); font-size: .9rem;
  margin-bottom: 1rem; padding-bottom: .4rem;
  border-bottom: 1px solid rgba(255,255,255,.15);
}
.footer-col li { margin-bottom: .4rem; }
.footer-col a { font-size: .85rem; opacity: .7; transition: opacity var(--transition); }
.footer-col a:hover { opacity: 1; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 1.2rem; text-align: center;
  font-size: .8rem; opacity: .5;
}
.iso-badges {
  display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .8rem;
}
.iso-badge {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2);
  border-radius: 4px; padding: .2rem .6rem; font-size: .72rem;
  color: rgba(255,255,255,.7);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .grid-4     { grid-template-columns: repeat(2, 1fr); }
  .cert-grid  { grid-template-columns: repeat(3, 1fr); }
  .certification-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 3rem 0; }
  .section-title { font-size: 1.4rem; }
  .hero { height: 400px; }
  .hero-content h1 { font-size: 1.6rem; }

  /* Nav */
  .site-header .container { padding: 0 1rem; }
  .nav-inner { height: 64px; }
  .logo {
    font-size: 1rem;
    line-height: 1.2;
    max-width: calc(100vw - 96px);
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .logo small {
    font-size: .6rem;
    letter-spacing: 0;
  }
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    padding: 0;
  }
  .nav-links {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    z-index: 1200;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    background: #fff;
    box-shadow: 0 10px 24px rgba(0,0,0,.12);
    padding: .5rem 1rem .9rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: block;
    padding: .75rem 0;
    border-bottom: 1px solid var(--border);
    font-size: .85rem;
  }
  .nav-has-submenu > a {
    padding-right: 0;
  }
  .nav-has-submenu > a::before {
    display: none;
  }
  .nav-submenu {
    position: static;
    min-width: 0;
    padding: .15rem 0 .35rem .8rem;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    transition: none;
    visibility: visible;
  }
  .nav-submenu::before {
    display: none;
  }
  .nav-submenu a {
    border-bottom: 0;
    border-left: 2px solid rgba(58,125,68,.2);
    border-radius: 0;
    color: var(--text-light);
    font-size: .8rem;
    padding: .48rem 0 .48rem .75rem;
  }
  .nav-submenu a:hover,
  .nav-submenu a:focus {
    background: transparent;
  }
  .nav-links li:last-child a { border-bottom: 0; }
  .nav-links a::after { display: none; }

  .about-section-nav {
    top: 64px;
  }
  .about-section-nav .container {
    padding: 0 .75rem;
  }
  .about-section-nav ul {
    justify-content: flex-start;
    padding: .65rem 0 0;
  }
  .about-section-nav a {
    min-width: auto;
    font-size: .78rem;
    padding: .48rem .72rem .55rem;
  }
  #company-overview,
  #company-environment,
  #development-timeline,
  #certificates,
  #team {
    scroll-margin-top: 112px;
  }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .cert-grid  { grid-template-columns: repeat(2, 1fr); }
  .certification-card { padding: .85rem; }
  .certification-pair .cert-item img { height: 240px; }
  .qualification-feature {
    padding: .85rem;
  }
  .qualification-feature-image img {
    max-height: 360px;
  }
  .qualification-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .qualification-grid .cert-item img {
    height: 300px;
  }
  .honor-grid {
    grid-template-columns: 1fr;
  }
  .honor-grid .cert-item img {
    height: 260px;
  }
  .team-grid  { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid  { grid-template-columns: 1fr; }
  .stats-grid   { grid-template-columns: repeat(2, 1fr); }

  /* Timeline simplified on mobile */
  .timeline::before { left: 16px; }
  .timeline-item, .timeline-item:nth-child(even) { flex-direction: row; }
  .timeline-dot  { left: 16px; }
  .timeline-spacer { display: none; }

  .supply-chain { flex-direction: column; gap: .5rem; }
  .chain-arrow  { transform: rotate(90deg); }

  .sunshine-inner { flex-direction: column; }

  .company-front-image { width: 100%; }
  .service-carousel-slide img { height: 300px; }
  .contact-hero-statement {
    padding: 1rem 1rem 1rem 1.35rem;
  }
  .contact-hero-statement::before {
    left: .35rem;
    font-size: 3.3rem;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 1rem; }
  .hero-content h1 { font-size: 1.3rem; }
  .hero { height: 340px; }
  .hero-btns { flex-direction: column; align-items: center; }
  .cert-grid { grid-template-columns: 1fr 1fr; }
  .certification-pair {
    gap: .6rem;
  }
  .certification-pair .cert-item img {
    height: 210px;
  }
  .certification-note {
    font-size: .76rem;
  }
  .qualification-feature-image img {
    max-height: 280px;
  }
  .qualification-grid .cert-item img {
    height: 240px;
  }
  .honor-grid .cert-item img {
    height: 210px;
  }
  .contact-hero-statement p {
    font-size: .86rem;
    line-height: 1.75;
  }
  .stat-item h2 { font-size: 1.7rem; }
}