:root {
  --green-950: #1f1316;
  --green-900: #2a1a1d;
  --green-800: #49282c;
  --green-700: #70474a;
  --green-100: #eee2df;
  --cream: #f3ecdd;
  --paper: #fbf8f2;
  --red: #8b1a1f;
  --red-dark: #6b1419;
  --gold: #b88a4a;
  --gold-light: #d4b380;
  --ink: #1a1612;
  --muted: #6f6258;
  --line: #e5dcc8;
  --shadow: 0 24px 70px rgba(42, 18, 21, .14);
  --radius: 12px;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--paper); }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 10%, rgba(189,75,54,.025), transparent 28%),
    var(--paper);
  font-family: var(--sans);
  line-height: 1.75;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}
body.drawer-open, body.modal-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }

.scroll-progress {
  position: fixed; inset: 0 auto auto 0; width: 0; height: 3px;
  background: var(--red); z-index: 120; transition: width .08s linear;
}
.topbar {
  position: fixed; z-index: 100; top: 0; left: 0; right: 0;
  height: 76px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(18px, 5vw, 72px); color: var(--ink);
  border-bottom: 1px solid rgba(58,52,48,.14);
  background: linear-gradient(90deg, rgba(247,242,233,.96) 0 42%, rgba(28,25,23,.16) 42% 100%);
  transition: background .3s, height .3s, box-shadow .3s;
}
.topbar.scrolled { height: 66px; color: var(--paper); background: rgba(28,25,23,.94); box-shadow: 0 10px 30px rgba(0,0,0,.12); backdrop-filter: blur(14px); }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-seal {
  width: 42px; height: 42px; display: grid; place-items: center;
  color: white; background: var(--red); border: 1px solid var(--red); border-radius: 7px;
  font-family: var(--serif); font-size: 20px; font-weight: 700;
}
.brand-name { display: block; font: 700 18px/1.1 var(--serif); letter-spacing: .2em; }
.brand-company { display: none; margin-top: 4px; font-size: 9px; letter-spacing: .08em; opacity: .72; }
.menu-btn { width: 46px; height: 46px; border: 0; background: transparent; display: grid; place-content: center; gap: 6px; cursor: pointer; }
.menu-btn span { width: 25px; height: 1px; background: var(--paper); transition: transform .25s, opacity .25s; }
.menu-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn.open span:nth-child(2) { opacity: 0; }
.menu-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.drawer {
  position: fixed; z-index: 99; top: 0; right: 0; width: min(88vw, 430px); height: 100dvh;
  padding: 110px 38px 34px; color: var(--ink); background: var(--paper);
  border-left: 1px solid var(--line);
  transform: translateX(105%); transition: transform .42s cubic-bezier(.2,.8,.2,1);
  display: flex; flex-direction: column;
}
.drawer.open { transform: translateX(0); }
.drawer-mask { position: fixed; z-index: 98; inset: 0; background: rgba(28,25,23,.62); opacity: 0; pointer-events: none; transition: opacity .35s; backdrop-filter: blur(2px); }
.drawer-mask.open { opacity: 1; pointer-events: auto; }
.drawer-kicker { color: var(--gold); letter-spacing: .25em; font-size: 10px; }
.drawer h2 { max-width: 310px; margin: 8px 0 24px; font: 600 22px/1.45 var(--serif); }
.drawer-nav { display: grid; counter-reset: menu; border-top: 1px solid var(--line); }
.drawer-nav a { counter-increment: menu; display: grid; grid-template-columns: 34px 1fr auto; align-items: center; padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
.drawer-nav a::before { content: "0" counter(menu); color: #a69c92; font-size: 9px; letter-spacing: .08em; }
.drawer-nav a::after { content: "↗"; color: var(--gold); font-size: 14px; }
.drawer-nav a.active { color: var(--red-dark); }
.qr-trigger { margin-top: 26px; padding: 13px 18px; color: var(--paper); border: 1px solid var(--ink); background: var(--ink); border-radius: 7px; cursor: pointer; }
.drawer-foot { margin-top: auto; color: #9c9187; font-size: 11px; letter-spacing: .12em; }

.hero, .page-hero {
  position: relative; display: grid; grid-template-columns: minmax(340px, 42%) 1fr;
  color: var(--ink); overflow: hidden; background: var(--paper);
}
.hero { min-height: 100svh; }
.page-hero { min-height: 68svh; }
.hero-media { position: relative; grid-column: 2; grid-row: 1; min-height: inherit; overflow: hidden; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(28,25,23,.16), transparent 28%), linear-gradient(180deg, rgba(28,25,23,.02), rgba(28,25,23,.23)); }
.hero-content {
  position: relative; z-index: 1; grid-column: 1; grid-row: 1;
  width: auto; margin: 0; padding: 150px clamp(34px, 5vw, 78px) 80px;
  display: flex; flex-direction: column; justify-content: center;
  overflow: hidden; background: var(--paper); border-right: 1px solid var(--line);
}
.hero-content::before { content: "CZL"; position: absolute; left: -.04em; top: 10%; color: rgba(37,33,31,.035); font: 700 clamp(100px, 18vw, 260px)/1 var(--sans); letter-spacing: -.08em; pointer-events: none; }
.hero-index .hero-content::after {
  content: "2025 / 汕头潮阳"; position: absolute; left: clamp(34px, 5vw, 78px); bottom: 34px;
  color: #9b9086; font-size: 10px; letter-spacing: .2em;
}
.eyebrow { position: relative; margin: 0 0 14px; color: var(--red); font-size: 11px; font-weight: 700; letter-spacing: .3em; text-transform: uppercase; }
.hero h1, .page-hero h1 { margin: 0; max-width: 720px; font: 600 clamp(38px, 4.5vw, 62px)/1.18 var(--serif); letter-spacing: .015em; }
.mobile-break { display: none; }
.page-hero h1 { font-size: clamp(34px, 4.2vw, 54px); }
.hero-lead { max-width: 650px; margin: 20px 0 0; color: var(--muted); font-size: clamp(14px, 1.35vw, 17px); }
.hero-mark { display: inline-block; width: 46px; height: 3px; margin: 26px 0 0; background: var(--gold); border-radius: 9px; }
.scroll-hint { position: absolute; z-index: 2; right: 26px; bottom: 34px; display: flex; align-items: center; gap: 10px; font-size: 10px; letter-spacing: .24em; writing-mode: vertical-rl; opacity: .78; }
.scroll-hint::after { content: ""; width: 1px; height: 44px; background: rgba(255,255,255,.7); animation: pulse 1.8s infinite; }
@keyframes pulse { 0%,100%{ transform:scaleY(.4); transform-origin: top;} 50%{transform:scaleY(1);} }

.section { padding: clamp(64px, 8vw, 104px) clamp(20px, 6vw, 72px); }
.section-inner { width: min(1120px, 100%); margin: 0 auto; }
.section-cream { background: var(--cream); }
.section-dark { color: var(--paper); background: var(--green-950); }
.section-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 18px; margin-bottom: 34px; }
.section-label { color: var(--red); font-size: 11px; font-weight: 700; letter-spacing: .28em; text-transform: uppercase; }
.section-head h2 { margin: 7px 0 0; font: 600 clamp(28px, 3.6vw, 44px)/1.25 var(--serif); }
.section-head p { max-width: 500px; margin: 0; color: var(--muted); font-size: 14px; }
.section-dark .section-head p { color: #bcb2a8; }
.lead-copy { max-width: 860px; margin: 0; font: 400 clamp(18px, 2.2vw, 26px)/1.75 var(--serif); }
.lead-copy strong { color: var(--red); font-weight: 600; }

.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 54px; background: var(--line); border: 1px solid var(--line); }
.stat { min-height: 155px; padding: 26px 20px; background: var(--paper); }
.stat strong { display: block; color: var(--red); font: 600 clamp(34px, 5vw, 52px)/1 var(--serif); }
.stat strong span { display: inline; margin-left: 5px; font: 500 14px/1 var(--sans); }
.stat p { margin: 16px 0 0; color: var(--muted); font-size: 13px; }

.feature-grid { display: grid; gap: 18px; }
.feature-card { position: relative; min-height: 340px; padding: 28px; overflow: hidden; color: white; background: var(--green-900); border-radius: var(--radius); box-shadow: var(--shadow); }
.feature-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.feature-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(28,25,23,.02) 20%, rgba(28,25,23,.88)); }
.feature-card:hover img { transform: scale(1.035); }
.feature-copy { position: absolute; z-index: 1; inset: auto 26px 24px; }
.feature-num { color: var(--gold-light); font: 600 11px/1 var(--sans); letter-spacing: .18em; }
.feature-card h3 { margin: 7px 0 2px; font: 600 21px/1.3 var(--serif); }
.feature-card p { margin: 0; color: rgba(255,255,255,.72); font-size: 12px; letter-spacing: .08em; }

.project-split { display: grid; gap: 34px; align-items: center; }
.project-visual { position: relative; overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow); }
.project-visual img { width: 100%; aspect-ratio: 1.45; object-fit: cover; }
.project-copy h2 { margin: 0 0 18px; font: 600 clamp(28px, 3.8vw, 46px)/1.3 var(--serif); }
.project-copy p { color: var(--muted); }
.text-link { display: inline-flex; gap: 12px; align-items: center; margin-top: 14px; color: var(--red-dark); font-weight: 700; font-size: 13px; letter-spacing: .08em; }

.quote { text-align: center; }
.quote p { max-width: 900px; margin: 0 auto; font: 500 clamp(24px, 3.5vw, 42px)/1.55 var(--serif); }
.quote.section-dark { background: var(--red); }
.quote small { display: block; margin-top: 24px; color: #b8ada3; letter-spacing: .18em; }

.content-grid { display: grid; gap: 28px; }
.content-card { padding: 28px; background: white; border: 1px solid var(--line); border-radius: 12px; }
.content-card .number { color: var(--red); font: 600 12px/1 var(--sans); letter-spacing: .18em; }
.content-card h3 { margin: 15px 0 10px; font: 600 21px/1.35 var(--serif); }
.content-card p { margin: 0; color: var(--muted); }
.prose { max-width: 830px; }
.prose p { margin: 0 0 22px; color: #5f5852; font-size: 16px; }

.timeline { position: relative; margin-top: 40px; }
.timeline::before { content: ""; position: absolute; left: 9px; top: 9px; bottom: 9px; width: 1px; background: rgba(255,255,255,.18); }
.timeline-item { position: relative; padding: 0 0 44px 38px; }
.timeline-item::before { content: ""; position: absolute; left: 3px; top: 8px; width: 13px; height: 13px; border: 3px solid var(--green-950); border-radius: 50%; background: #d36a54; box-shadow: 0 0 0 1px #d36a54; }
.timeline-item time { color: #e49a89; font-size: 12px; letter-spacing: .12em; }
.timeline-item h3 { margin: 6px 0 10px; font: 600 21px/1.35 var(--serif); }
.timeline-item p { margin: 0; color: #b8ada3; }

.gallery { display: grid; gap: 20px; }
.gallery-button { padding: 0; overflow: hidden; text-align: left; background: white; border: 0; border-radius: 12px; box-shadow: var(--shadow); cursor: zoom-in; }
.gallery-button img { width: 100%; aspect-ratio: 1.5; object-fit: cover; transition: transform .5s; }
.gallery-button:hover img { transform: scale(1.025); }
.gallery-caption { padding: 17px 20px 20px; }
.gallery-caption strong { display: block; font: 600 18px/1.3 var(--serif); }
.gallery-caption span { color: var(--muted); font-size: 12px; }

.capacity-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.capacity-card { min-height: 190px; padding: 26px 20px; color: white; background: var(--green-900); border-radius: 12px; }
.capacity-card:nth-child(3n+2) { background: var(--green-800); }
.capacity-card:nth-child(3n) { background: #9d402f; }
.capacity-card strong { display: block; font: 600 clamp(34px, 5vw, 52px)/1 var(--serif); }
.capacity-card em { font-style: normal; font-size: 13px; opacity: .7; }
.capacity-card h3 { margin: 22px 0 0; font: 500 18px/1.3 var(--serif); }
.cold-chain { display: grid; gap: 12px; margin-top: 34px; }
.temperature { display: flex; align-items: center; gap: 22px; padding: 22px; background: white; border: 1px solid var(--line); border-radius: 10px; }
.temperature b { min-width: 88px; color: var(--red-dark); font: 600 25px/1 var(--serif); }
.temperature p { margin: 0; color: var(--muted); font-size: 13px; }

.contact-card { overflow: hidden; background: white; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); }
.contact-visual { min-height: 300px; background: url('../images/hero-park-alt.jpg') center/cover; }
.contact-info { padding: clamp(28px, 6vw, 58px); }
.contact-info h2 { margin: 0 0 26px; font: 600 clamp(26px, 3.5vw, 40px)/1.35 var(--serif); }
.contact-row { padding: 20px 0; border-top: 1px solid var(--line); }
.contact-row small { display: block; color: var(--red); letter-spacing: .16em; }
.contact-row p { margin: 5px 0 0; }

.footer { padding: 66px 22px 34px; color: var(--paper); background: #171412; text-align: center; }
.footer-brand { margin: 0; font: 600 30px/1.2 var(--serif); letter-spacing: .28em; }
.footer-company { margin: 10px 0 26px; color: #aea299; font-size: 12px; }
.footer-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 22px; font-size: 12px; }
.footer-meta { margin-top: 34px; padding-top: 24px; color: #81766e; border-top: 1px solid rgba(255,255,255,.09); font-size: 11px; }

.back-top { position: fixed; z-index: 70; right: 20px; bottom: 20px; width: 46px; height: 46px; color: white; border: 0; border-radius: 50%; background: var(--red); box-shadow: 0 12px 30px rgba(91,21,20,.28); opacity: 0; pointer-events: none; transform: translateY(12px); transition: .25s; cursor: pointer; }
.back-top.show { opacity: 1; pointer-events: auto; transform: none; }

.modal { position: fixed; z-index: 200; inset: 0; display: grid; place-items: center; padding: 20px; background: rgba(28,25,23,.78); opacity: 0; visibility: hidden; transition: .25s; }
.modal.open { opacity: 1; visibility: visible; }
.modal-card { position: relative; width: min(100%, 390px); padding: 34px; background: var(--paper); border-radius: 24px; box-shadow: 0 28px 90px rgba(0,0,0,.35); text-align: center; transform: translateY(12px); transition: transform .25s; }
.modal.open .modal-card { transform: none; }
.modal-close { position: absolute; top: 13px; right: 13px; width: 36px; height: 36px; border: 0; background: transparent; font-size: 25px; cursor: pointer; }
.modal-card h3 { margin: 0; font: 600 25px/1.2 var(--serif); }
.modal-card > p { margin: 6px 0 20px; color: var(--muted); font-size: 12px; }
.qr-wrap { width: 224px; height: 224px; margin: 0 auto; padding: 12px; background: white; border: 1px solid var(--line); }
.qr-wrap canvas { width: 100%; height: 100%; }
.qr-url { overflow: hidden; margin: 14px 0; color: var(--muted); font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.modal-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.modal-actions button { padding: 11px; border: 1px solid var(--ink); border-radius: 7px; cursor: pointer; }
.modal-actions .primary { color: white; background: var(--ink); }
.modal-actions .ghost { color: var(--ink); background: transparent; }

.lightbox { position: fixed; z-index: 210; inset: 0; display: grid; place-items: center; padding: 58px 16px 24px; background: rgba(23,20,18,.96); opacity: 0; visibility: hidden; transition: .25s; }
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox img { max-width: min(1400px, 96vw); max-height: 80vh; object-fit: contain; }
.lightbox-close { position: absolute; top: 15px; right: 18px; width: 46px; height: 46px; color: white; border: 0; background: transparent; font-size: 34px; cursor: pointer; }
.lightbox-caption { margin: 14px 0 0; color: #c8bdb3; text-align: center; font-size: 12px; }

[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity .75s, transform .75s; }
[data-reveal].is-visible { opacity: 1; transform: none; }

@media (min-width: 680px) {
  .brand-company { display: block; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card { min-height: 390px; }
  .content-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .capacity-grid { grid-template-columns: repeat(3, 1fr); }
  .cold-chain { grid-template-columns: repeat(3, 1fr); }
  .contact-card { display: grid; grid-template-columns: 1.05fr .95fr; }
}
@media (min-width: 900px) {
  .stats { grid-template-columns: repeat(4, 1fr); }
  .project-split { grid-template-columns: 1.15fr .85fr; gap: 72px; }
  .content-grid.three { grid-template-columns: repeat(3, 1fr); }
  .timeline { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .timeline::before { left: 0; right: 0; top: 9px; bottom: auto; width: auto; height: 1px; }
  .timeline-item { padding: 40px 30px 0 0; }
  .timeline-item::before { left: 0; top: 3px; }
}
@media (max-width: 760px) {
  .topbar { height: 56px; padding: 0 16px; color: white; background: rgba(31,19,22,.84); border-bottom-color: rgba(212,179,128,.16); box-shadow: none; backdrop-filter: blur(5px); }
  .topbar.scrolled { height: 56px; color: var(--red); background: rgba(251,248,242,.98); border-bottom-color: rgba(0,0,0,.06); box-shadow: 0 1px 8px rgba(40,20,10,.06); backdrop-filter: none; }
  .brand { gap: 10px; }
  .brand-seal { width: 32px; height: 32px; font-size: 17px; border-radius: 6px; box-shadow: 0 1px 3px rgba(139,26,31,.25); }
  .brand-name { color: inherit; font-size: 16px; letter-spacing: .14em; }
  .menu-btn span { width: 20px; background: white; }
  .topbar.scrolled .menu-btn span { background: var(--ink); }
  .hero, .page-hero { display: grid; grid-template-columns: 1fr; grid-template-rows: 1fr; min-height: 0; padding-top: 0; color: white; background: var(--green-950); }
  .hero { height: 100svh; min-height: 580px; max-height: 780px; }
  .page-hero { height: 50svh; min-height: 330px; max-height: 440px; }
  .hero-media { position: absolute; inset: 0; grid-column: auto; grid-row: auto; width: 100%; min-height: 0; margin: 0; border-radius: 0; }
  .hero-media img { object-position: center; }
  .page-hero .hero-media { min-height: 0; }
  .hero-media::after { background: linear-gradient(rgba(23,8,10,.28), rgba(23,8,10,.28)), linear-gradient(180deg, rgba(23,8,10,.08) 25%, rgba(23,8,10,.24) 54%, rgba(23,8,10,.9) 100%); }
  .hero-content { grid-column: 1; grid-row: 1; align-self: end; min-height: 0; margin: 0; padding: 110px 26px 76px; color: white; background: transparent; border: 0; border-radius: 0; box-shadow: none; }
  .page-hero .hero-content { align-self: center; min-height: 0; padding: 82px 28px 36px; text-align: center; align-items: center; }
  .hero-content::before { content: none; }
  .hero-index .hero-content::after { left: 27px; bottom: 38px; color: rgba(255,255,255,.52); }
  .hero h1 { max-width: 340px; font-size: clamp(29px, 8vw, 32px); line-height: 1.28; }
  .page-hero h1 { font-size: clamp(28px, 7.7vw, 31px); line-height: 1.3; }
  .hero-lead { max-width: 330px; margin-top: 15px; color: rgba(255,255,255,.82); font-size: 13px; line-height: 1.9; }
  .hero-mark { width: 28px; height: 1.5px; margin-top: 19px; background: var(--gold-light); border-radius: 0; }
  .eyebrow { margin-bottom: 14px; color: rgba(255,255,255,.7); font-size: 10px; letter-spacing: .32em; }
  .page-hero .eyebrow { margin-bottom: 18px; }
  .section { padding: 48px 18px; border-top: 1px solid rgba(58,52,48,.08); }
  .section-head { margin-bottom: 28px; }
  .section-head h2 { font-size: 25px; }
  .section-head p { font-size: 13px; }
  .lead-copy { font-size: 16px; line-height: 1.9; }
  .prose { max-width: none; }
  .prose p { font-size: 15px; line-height: 2; }
  .feature-grid { gap: 10px; }
  .feature-card { min-height: 220px; border-radius: 10px; box-shadow: 0 10px 28px rgba(52,39,29,.1); }
  .feature-card h3 { font-size: 19px; }
  .project-copy h2 { font-size: 25px; }
  .quote p { font-size: 22px; }
  .contact-info h2 { font-size: 23px; }
  .content-card { padding: 22px 20px; border-radius: 12px; }
  .contact-card { border-radius: 14px; }
  .contact-info { padding: 26px 20px; }
  .contact-visual { min-height: 260px; }
  .gallery-button { border-radius: 12px; }
  .temperature { padding: 18px; border-radius: 10px; }
  .drawer { width: 78%; max-width: 320px; padding: 84px 22px 22px; }
  .drawer h2 { margin-bottom: 18px; font-size: 19px; line-height: 1.5; }
  .drawer-nav a { padding: 13px 0; font-size: 15px; }
  .qr-trigger { margin-top: 20px; padding: 11px 14px; }
  .modal-card { border-radius: 14px; }
  .scroll-hint { display: none; }
}
@media (max-width: 420px) {
  .hero h1 { font-size: 30px; letter-spacing: 0; }
  .mobile-break { display: none; }
  .stats, .capacity-grid { grid-template-columns: 1fr 1fr; }
  .stat { min-height: 140px; padding: 22px 16px; }
  .capacity-card { min-height: 170px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}