/* ==========================================================================
   考拉园艺 Koala Garden — Design System
   纯 CSS，无第三方依赖。Tokens → Base → Layout → Components → Responsive
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  --ink: #0E1A14;
  --forest: #16352A;
  --forest-2: #1B4433;
  --primary: #1F5C43;
  --leaf: #3E8E68;
  --leaf-soft: #6FB08D;
  --sand: #F7F4ED;
  --sand-2: #EFEAE0;
  --warm: #FCFBF8;
  --clay: #C4623A;
  --clay-deep: #A94E2B;
  --gold: #C9A227;

  --text: #1C2420;
  --text-2: #5C6B63;
  --text-3: #8A968F;
  --line: rgba(14, 26, 20, .10);
  --line-2: rgba(14, 26, 20, .06);
  --on-dark: #EAF0EA;
  --on-dark-2: rgba(234, 240, 234, .68);

  --r-sm: 10px;
  --r-md: 18px;
  --r-lg: 28px;
  --r-xl: 40px;
  --r-pill: 999px;

  --sh-1: 0 1px 2px rgba(14, 26, 20, .04), 0 4px 12px -6px rgba(14, 26, 20, .08);
  --sh-2: 0 1px 2px rgba(14, 26,  20, .05), 0 14px 34px -14px rgba(14, 26, 20, .16);
  --sh-3: 0 2px 6px rgba(14, 26, 20, .06), 0 30px 60px -24px rgba(14, 26, 20, .22);
  --sh-green: 0 18px 40px -20px rgba(31, 92, 67, .55);

  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue",
    Helvetica, Arial, sans-serif;
  --serif: Georgia, "Times New Roman", "Songti SC", "STSong", serif;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --maxw: 1240px;
  --nav-h: 74px;
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--warm);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; letter-spacing: -.02em; line-height: 1.18; }
p { margin: 0; }
table { border-collapse: collapse; width: 100%; }

::selection { background: var(--leaf); color: #fff; }

:focus-visible {
  outline: 2px solid var(--clay);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--ink); color: #fff; padding: 10px 18px; border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }

/* ---------- 3. Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.wrap-wide { width: 100%; max-width: 1480px; margin-inline: auto; padding-inline: 24px; }
.section { padding: clamp(64px, 8vw, 112px) 0; }
.section-sm { padding: clamp(48px, 6vw, 80px) 0; }
.sand { background: var(--sand); }
.forest { background: var(--forest); color: var(--on-dark); }
.forest .sec-title, .forest .sec-desc { color: var(--on-dark); }
.forest .sec-desc { color: var(--on-dark-2); }

.grid { display: grid; gap: 24px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.g-2-1 { grid-template-columns: 1.55fr 1fr; }
.g-1-2 { grid-template-columns: 1fr 1.55fr; }

/* ---------- 4. Typography ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: .76rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--primary);
}
.eyebrow::before {
  content: ""; width: 26px; height: 1px; background: currentColor; opacity: .55;
}
.forest .eyebrow, .on-dark .eyebrow { color: var(--leaf-soft); }

.sec-title { font-size: clamp(1.72rem, 3.1vw, 2.55rem); margin-top: 16px; }
.sec-desc { margin-top: 16px; color: var(--text-2); max-width: 62ch; font-size: 1.02rem; }
.sec-head { max-width: 780px; margin-bottom: clamp(36px, 5vw, 60px); }
.sec-head.center { margin-inline: auto; text-align: center; }
.sec-head.center .sec-desc { margin-inline: auto; }

.lead { font-size: clamp(1.02rem, 1.6vw, 1.16rem); color: var(--text-2); line-height: 1.8; }
.serif { font-family: var(--serif); font-weight: 400; letter-spacing: -.01em; }
.hl { color: var(--primary); font-weight: 600; }
.hl-clay { color: var(--clay); font-weight: 600; }

/* ---------- 5. Buttons ---------- */
.btn {
  --btn-bg: var(--clay);
  --btn-fg: #fff;
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 14px 26px; border-radius: var(--r-pill);
  background: var(--btn-bg); color: var(--btn-fg);
  font-weight: 600; font-size: .95rem; letter-spacing: .01em;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--sh-2); background: var(--clay-deep); }
.btn:active { transform: scale(.97); }
.btn-green { --btn-bg: var(--primary); }
.btn-green:hover { background: #17492f; }
.btn-ghost { --btn-bg: transparent; --btn-fg: var(--text); border-color: var(--line); }
.btn-ghost:hover { background: var(--sand-2); border-color: var(--primary); color: var(--primary); box-shadow: none; }
.btn-light { --btn-bg: #fff; --btn-fg: var(--ink); }
.btn-light:hover { background: #F2EFE8; }
.btn-outline-light { --btn-bg: transparent; --btn-fg: #fff; border-color: rgba(255, 255, 255, .38); }
.btn-outline-light:hover { background: rgba(255, 255, 255, .12); border-color: #fff; color: #fff; }
.btn-sm { padding: 10px 18px; font-size: .88rem; }
.btn-block { width: 100%; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; color: var(--primary); font-size: .93rem;
}
.link-arrow svg { transition: transform .25s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }
.forest .link-arrow { color: var(--leaf-soft); }

/* ---------- 6. Header ---------- */
.site-head {
  position: fixed; inset: 0 0 auto 0; z-index: 90;
  height: var(--nav-h);
  display: flex; align-items: center;
  transition: background .3s var(--ease), box-shadow .3s var(--ease), height .3s var(--ease);
}
.site-head::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: rgba(252, 251, 248, .86);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid transparent;
  opacity: 0; transition: opacity .3s var(--ease), border-color .3s var(--ease);
}
.site-head.scrolled::before { opacity: 1; border-bottom-color: var(--line); }
.site-head.scrolled { --nav-h: 64px; }
.site-head.on-dark::before { background: rgba(14, 26, 20, .55); border-bottom-color: rgba(255, 255, 255, .12); }

.head-inner { width: 100%; max-width: 1480px; margin-inline: auto; padding-inline: 24px; display: flex; align-items: center; gap: 20px; }

.brand { display: flex; align-items: center; gap: 11px; margin-right: auto; }
.brand-mark { width: 38px; height: 38px; flex: none; }
.brand-txt { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-weight: 800; font-size: 1.06rem; letter-spacing: .01em; }
.brand-sub { font-size: .66rem; letter-spacing: .16em; text-transform: uppercase; color: var(--text-3); }
.on-dark .brand-sub, .site-head.on-dark .brand-sub { color: rgba(255, 255, 255, .55); }

.nav { display: flex; align-items: center; gap: 2px; }
.nav a {
  padding: 8px 13px; border-radius: 9px; font-size: .93rem; font-weight: 500;
  color: var(--text-2); transition: color .2s, background .2s;
}
.nav a:hover { color: var(--primary); background: rgba(31, 92, 67, .07); }
.nav a.active { color: var(--primary); font-weight: 600; }
.on-dark .nav a, .site-head.on-dark .nav a { color: rgba(255, 255, 255, .8); }
.on-dark .nav a:hover, .site-head.on-dark .nav a:hover { color: #fff; background: rgba(255, 255, 255, .12); }

.head-actions { display: flex; align-items: center; gap: 10px; }

.lang-switch {
  display: inline-flex; align-items: center; border: 1px solid var(--line);
  border-radius: var(--r-pill); overflow: hidden; background: rgba(255, 255, 255, .5);
}
.lang-switch a {
  padding: 6px 13px; font-size: .8rem; font-weight: 700; letter-spacing: .04em;
  color: var(--text-3); transition: all .2s var(--ease);
}
.lang-switch a:hover { color: var(--primary); }
.lang-switch a.on { background: var(--primary); color: #fff; }
.site-head.on-dark .lang-switch { border-color: rgba(255, 255, 255, .28); background: rgba(255, 255, 255, .08); }
.site-head.on-dark .lang-switch a { color: rgba(255, 255, 255, .7); }
.site-head.on-dark .lang-switch a.on { background: #fff; color: var(--ink); }

.nav-toggle {
  display: none; width: 42px; height: 42px; border-radius: 11px;
  border: 1px solid var(--line); background: rgba(255, 255, 255, .6);
  align-items: center; justify-content: center;
}
.site-head.on-dark .nav-toggle { border-color: rgba(255, 255, 255, .3); background: rgba(255, 255, 255, .1); }

/* mobile drawer */
.drawer {
  position: fixed; inset: 0; z-index: 95; display: none;
  background: rgba(14, 26, 20, .45); backdrop-filter: blur(4px);
}
.drawer.open { display: block; }
.drawer-panel {
  position: absolute; inset: 0 0 0 auto; width: min(330px, 86vw); background: var(--warm);
  padding: 22px; display: flex; flex-direction: column; gap: 6px;
  box-shadow: -20px 0 60px rgba(14, 26, 20, .2);
  animation: slideIn .3s var(--ease);
}
@keyframes slideIn { from { transform: translateX(100%); } to { transform: none; } }
.drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.drawer-panel a.nav-link {
  padding: 13px 12px; border-radius: 12px; font-size: 1.02rem; font-weight: 600;
  border-bottom: 1px solid var(--line-2);
}
.drawer-panel a.nav-link:hover, .drawer-panel a.nav-link.active { color: var(--primary); background: rgba(31, 92, 67, .06); }
.drawer-cta { margin-top: 18px; display: grid; gap: 10px; }

/* ---------- 7. Hero ---------- */
.hero {
  position: relative; min-height: min(92vh, 860px);
  display: flex; align-items: flex-end;
  padding: calc(var(--nav-h) + 40px) 0 clamp(48px, 7vw, 88px);
  overflow: hidden; isolation: isolate;
}
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center 55%; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(14, 26, 20, .62) 0%, rgba(14, 26, 20, .18) 38%, rgba(14, 26, 20, .78) 100%),
    linear-gradient(95deg, rgba(14, 26, 20, .58) 0%, rgba(14, 26, 20, .12) 62%);
}
.hero-inner { width: 100%; max-width: 1240px; margin-inline: auto; padding-inline: 24px; }
.hero-copy { max-width: 760px; color: #fff; }
.hero .eyebrow { color: #B7E3C8; }
.hero h1 {
  margin-top: 18px; color: #fff;
  font-size: clamp(2.15rem, 5.4vw, 4rem); line-height: 1.12;
  text-shadow: 0 2px 30px rgba(0, 0, 0, .28);
}
.hero h1 em { font-style: normal; color: #C8EBD6; }
.hero-lead {
  margin-top: 22px; max-width: 56ch; font-size: clamp(1rem, 1.5vw, 1.14rem);
  color: rgba(255, 255, 255, .9); line-height: 1.8;
}
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 14px; }
.hero-note {
  margin-top: 26px; display: flex; flex-wrap: wrap; gap: 8px 22px;
  font-size: .88rem; color: rgba(255, 255, 255, .78);
}
.hero-note span { display: inline-flex; align-items: center; gap: 7px; }
.hero-note svg { opacity: .85; }

.hero-split { position: relative; background: var(--sand); }
.hero-split-inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(28px, 5vw, 72px); align-items: center; }
.hero-split h1 { font-size: clamp(2rem, 4.4vw, 3.35rem); margin-top: 16px; }
.hero-split p.lead { margin-top: 18px; }

.stat-strip {
  position: relative; margin-top: clamp(-64px, -5vw, -40px); z-index: 5;
}
.stat-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 26px 22px; box-shadow: var(--sh-2);
  text-align: center;
}
.stat-num { font-size: clamp(1.5rem, 2.8vw, 2.1rem); font-weight: 800; color: var(--primary); letter-spacing: -.03em; line-height: 1.1; }
.stat-num span { font-size: .6em; font-weight: 700; margin-left: 2px; }
.stat-label { margin-top: 8px; font-size: .87rem; color: var(--text-2); }

/* ---------- 8. Marquee ---------- */
.marquee {
  border-block: 1px solid var(--line); background: var(--sand-2);
  overflow: hidden; padding: 14px 0;
}
.marquee-track { display: flex; width: max-content; animation: slide 34s linear infinite; }
.marquee-item {
  display: inline-flex; align-items: center; gap: 10px; padding-inline: 26px;
  font-size: .9rem; font-weight: 600; color: var(--forest); white-space: nowrap;
}
.marquee-item i { width: 5px; height: 5px; border-radius: 50%; background: var(--clay); display: inline-block; }
@keyframes slide { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- 9. Cards ---------- */
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 26px; transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--sh-2); border-color: rgba(31, 92, 67, .28); }
.card-ico {
  width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center;
  background: linear-gradient(140deg, rgba(62, 142, 104, .16), rgba(62, 142, 104, .06));
  color: var(--primary); margin-bottom: 16px;
}
.card h3 { font-size: 1.06rem; }
.card p { margin-top: 10px; color: var(--text-2); font-size: .93rem; }
.card-num {
  font-family: var(--serif); font-size: .82rem; color: var(--clay);
  letter-spacing: .1em; display: block; margin-bottom: 10px;
}
.forest .card { background: rgba(255, 255, 255, .05); border-color: rgba(255, 255, 255, .11); }
.forest .card h3 { color: #fff; }
.forest .card p { color: var(--on-dark-2); }

/* ---------- 10. Product cards ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.prod {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-md);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.prod:hover { transform: translateY(-5px); box-shadow: var(--sh-2); }
.prod-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--sand-2); }
.prod-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.prod:hover .prod-media img { transform: scale(1.06); }
.prod-tag {
  position: absolute; left: 12px; top: 12px; z-index: 2;
  background: rgba(14, 26, 20, .74); color: #fff; backdrop-filter: blur(6px);
  padding: 4px 11px; border-radius: var(--r-pill); font-size: .74rem; font-weight: 600;
}
.prod-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.prod-title { font-size: 1.02rem; }
.prod-latin { font-family: var(--serif); font-style: italic; font-size: .84rem; color: var(--text-3); }
.prod-desc { font-size: .87rem; color: var(--text-2); flex: 1; }
.prod-meta {
  margin-top: 4px; padding-top: 12px; border-top: 1px dashed var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  font-size: .82rem; color: var(--text-2);
}
.prod-meta b { color: var(--primary); font-weight: 700; }

.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.filter {
  padding: 9px 18px; border-radius: var(--r-pill); border: 1px solid var(--line);
  background: #fff; font-size: .88rem; font-weight: 600; color: var(--text-2);
  transition: all .22s var(--ease);
}
.filter:hover { border-color: var(--primary); color: var(--primary); }
.filter.on { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ---------- 11. Gallery ---------- */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 180px; gap: 14px; }
.g-item { position: relative; overflow: hidden; border-radius: var(--r-md); background: var(--sand-2); cursor: zoom-in; }
.g-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.g-item:hover img { transform: scale(1.07); }
.g-item::after {
  content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(14, 26, 20, .62));
  opacity: 0; transition: opacity .3s var(--ease);
}
.g-item:hover::after { opacity: 1; }
.g-cap {
  position: absolute; left: 14px; right: 14px; bottom: 12px; z-index: 2; color: #fff;
  font-size: .86rem; font-weight: 600; opacity: 0; transform: translateY(6px);
  transition: all .3s var(--ease);
}
.g-item:hover .g-cap { opacity: 1; transform: none; }
.g-item.tall { grid-row: span 2; }
.g-item.wide { grid-column: span 2; }

.lightbox {
  position: fixed; inset: 0; z-index: 120; background: rgba(8, 14, 11, .93);
  display: none; align-items: center; justify-content: center; padding: 24px;
}
.lightbox.open { display: flex; animation: fade .25s var(--ease); }
.lightbox img { max-width: min(1100px, 94vw); max-height: 84vh; object-fit: contain; border-radius: 12px; }
.lb-cap { margin-top: 16px; color: rgba(255, 255, 255, .8); font-size: .92rem; text-align: center; }
.lb-close {
  position: absolute; top: 20px; right: 22px; width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255, 255, 255, .14); color: #fff; border: none; display: grid; place-items: center;
}
.lb-close:hover { background: rgba(255, 255, 255, .26); }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

/* ---------- 12. Timeline ---------- */
.timeline { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px 26px; }
.timeline::before {
  content: ""; position: absolute; top: 26px; left: 0; right: 0; height: 1px;
  background: repeating-linear-gradient(90deg, var(--line) 0 8px, transparent 8px 16px);
}
.tl-item { position: relative; padding-top: 52px; }
.tl-dot {
  position: absolute; top: 16px; left: 0; width: 21px; height: 21px; border-radius: 50%;
  background: #fff; border: 2px solid var(--primary); display: grid; place-items: center;
}
.tl-dot::after { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--clay); }
.tl-step { font-family: var(--serif); font-size: .8rem; letter-spacing: .14em; color: var(--clay); }
.tl-item h3 { font-size: 1.05rem; margin-top: 6px; }
.tl-item p { margin-top: 8px; color: var(--text-2); font-size: .92rem; }

/* ---------- 13. Services ---------- */
.svc {
  position: relative; border-radius: var(--r-md); overflow: hidden; background: var(--forest);
  color: var(--on-dark); min-height: 260px; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 26px; isolation: isolate;
}
.svc img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .7s var(--ease); }
.svc::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(14, 26, 20, .18) 0%, rgba(14, 26, 20, .86) 82%); }
.svc:hover img { transform: scale(1.07); }
.svc h3 { color: #fff; font-size: 1.08rem; }
.svc p { margin-top: 8px; color: rgba(255, 255, 255, .78); font-size: .9rem; }
.svc-tag { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: #B7E3C8; margin-bottom: 8px; }

/* ---------- 14. Fact card (GEO) ---------- */
.facts {
  border: 1px solid var(--line); border-radius: var(--r-md); background: #fff;
  overflow: hidden;
}
.facts-head {
  padding: 16px 22px; background: var(--sand); border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: .95rem;
}
.facts-head .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--clay); }
.facts-body { display: grid; grid-template-columns: repeat(2, 1fr); }
.facts-body div { padding: 14px 22px; border-bottom: 1px solid var(--line-2); display: flex; gap: 14px; }
.facts-body div:nth-child(2n) { border-left: 1px solid var(--line-2); }
.facts-body dt { flex: none; width: 108px; color: var(--text-3); font-size: .85rem; }
.facts-body dd { margin: 0; font-weight: 600; font-size: .91rem; }
.facts-note {
  padding: 13px 22px; background: var(--sand); color: var(--text-2); font-size: .84rem; line-height: 1.7;
}

/* ---------- 15. Spec table ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-md); background: #fff; }
table.spec { min-width: 680px; font-size: .9rem; }
table.spec caption { padding: 16px 20px; text-align: left; font-weight: 700; color: var(--text); font-size: .98rem; border-bottom: 1px solid var(--line); }
table.spec th, table.spec td { padding: 13px 20px; text-align: left; border-bottom: 1px solid var(--line-2); vertical-align: top; }
table.spec thead th { background: var(--sand); font-size: .8rem; letter-spacing: .06em; text-transform: uppercase; color: var(--text-2); font-weight: 700; }
table.spec tbody tr:hover { background: rgba(31, 92, 67, .035); }
table.spec tbody tr:last-child td { border-bottom: none; }

/* ---------- 16. FAQ ---------- */
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; background: none; border: 0; text-align: left;
  padding: 20px 44px 20px 0; position: relative;
  font-size: 1rem; font-weight: 600; line-height: 1.6;
  transition: color .2s;
}
.faq-q:hover { color: var(--primary); }
.faq-q::before, .faq-q::after {
  content: ""; position: absolute; right: 8px; top: 50%; background: var(--primary);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.faq-q::before { width: 14px; height: 2px; margin-top: -1px; }
.faq-q::after { width: 2px; height: 14px; margin-top: -7px; }
.faq-item.open .faq-q::after { transform: rotate(90deg); opacity: 0; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .38s var(--ease); }
.faq-a p { padding: 0 0 22px; color: var(--text-2); font-size: .94rem; line-height: 1.85; }
.faq-item.open .faq-a { max-height: 460px; }
.faq-group-title {
  font-size: 1.12rem; font-weight: 700; margin-bottom: 6px;
  display: flex; align-items: center; gap: 10px;
}
.faq-group-title::before { content: ""; width: 4px; height: 18px; border-radius: 2px; background: var(--clay); }

/* ---------- 17. Article cards ---------- */
.art {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden;
  display: flex; flex-direction: column; transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.art:hover { transform: translateY(-4px); box-shadow: var(--sh-2); }
.art-media { aspect-ratio: 16 / 10; overflow: hidden; background: var(--sand-2); }
.art-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.art:hover .art-media img { transform: scale(1.05); }
.art-body { padding: 20px; display: flex; flex-direction: column; gap: 9px; flex: 1; }
.art-meta { font-size: .76rem; letter-spacing: .1em; text-transform: uppercase; color: var(--clay); font-weight: 700; }
.art h3 { font-size: 1.04rem; line-height: 1.42; }
.art p { font-size: .9rem; color: var(--text-2); flex: 1; }

/* ---------- 18. CTA band ---------- */
.cta-band {
  position: relative; overflow: hidden; border-radius: var(--r-xl);
  background: linear-gradient(135deg, var(--forest) 0%, #123025 55%, #0B1C15 100%);
  color: #fff; padding: clamp(36px, 5vw, 62px);
  display: grid; grid-template-columns: 1.35fr 1fr; gap: 40px; align-items: center;
}
.cta-band::after {
  content: ""; position: absolute; width: 460px; height: 460px; right: -140px; top: -170px;
  border-radius: 50%; background: radial-gradient(circle, rgba(62, 142, 104, .3), transparent 68%);
}
.cta-band h2 { font-size: clamp(1.55rem, 2.9vw, 2.3rem); position: relative; }
.cta-band p { margin-top: 14px; color: rgba(255, 255, 255, .76); position: relative; }
.cta-actions { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 12px; position: relative; }
.cta-contact { display: grid; gap: 12px; position: relative; }
.cta-contact a {
  display: flex; align-items: center; gap: 14px; padding: 15px 18px;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .13);
  border-radius: var(--r-md); transition: background .25s var(--ease), transform .25s var(--ease);
}
.cta-contact a:hover { background: rgba(255, 255, 255, .16); transform: translateX(3px); }
.cta-contact .k { font-size: .76rem; color: rgba(255, 255, 255, .55); letter-spacing: .08em; text-transform: uppercase; }
.cta-contact .v { font-weight: 700; font-size: 1.04rem; letter-spacing: .01em; }
.cta-contact .ico { width: 42px; height: 42px; border-radius: 12px; background: rgba(255, 255, 255, .12); display: grid; place-items: center; flex: none; }

/* ---------- 19. QR block ---------- */
.qr-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.qr-card {
  border: 1px solid var(--line); border-radius: var(--r-md); background: #fff; padding: 20px; text-align: center;
}
.qr-card img { width: 100%; max-width: 208px; margin-inline: auto; border-radius: 12px; border: 1px solid var(--line-2); }
.qr-card h4 { margin-top: 14px; font-size: .98rem; }
.qr-card p { margin-top: 5px; font-size: .83rem; color: var(--text-2); }
.qr-card .id { margin-top: 10px; font-family: var(--serif); font-size: .95rem; color: var(--primary); font-weight: 700; }

/* ---------- 20. Form ---------- */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .86rem; font-weight: 600; color: var(--text-2); }
.field label .req { color: var(--clay); }
.field input, .field select, .field textarea {
  font: inherit; font-size: .94rem; color: var(--text); background: #fff;
  border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px;
  transition: border-color .2s, box-shadow .2s; width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(31, 92, 67, .12);
}
.field textarea { resize: vertical; min-height: 116px; }
.field .err { font-size: .78rem; color: var(--clay); display: none; }
.field.invalid .err { display: block; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: var(--clay); }
/* 蜜罐字段：对真人完全不可见（移出可视区并禁用交互），机器人却会照常填写 */
.hp-field {
  position: absolute !important; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%);
  white-space: nowrap; opacity: 0; pointer-events: none;
}
.hp-field label { display: none; }
.form-note { margin-top: 14px; font-size: .84rem; color: var(--text-3); }
.form-ok {
  display: none; margin-top: 18px; padding: 16px 18px; border-radius: 12px;
  background: rgba(31, 92, 67, .09); border: 1px solid rgba(31, 92, 67, .25); color: var(--primary); font-weight: 600;
}
.form-ok.show { display: block; }
.form-err {
  display: none; margin-top: 18px; padding: 16px 18px; border-radius: 12px;
  background: rgba(196, 98, 58, .09); border: 1px solid rgba(196, 98, 58, .3); color: var(--clay); font-weight: 600;
}
.form-err.show { display: block; }
.form-alt { margin-top: 12px; font-size: .84rem; color: var(--text-3); }
.form-alt a { color: var(--primary); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.form-alt a:hover { color: var(--clay); }
.btn.is-loading { opacity: .72; pointer-events: none; }
.btn.is-loading svg { animation: btn-spin .9s linear infinite; }
@keyframes btn-spin { to { transform: rotate(360deg); } }

/* ---------- 21. Footer ---------- */
.site-foot { background: var(--ink); color: rgba(255, 255, 255, .62); padding-top: clamp(48px, 6vw, 78px); }
.foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.25fr; gap: 36px; }
.foot-brand .brand-name { color: #fff; }
.foot-brand .brand-sub { color: rgba(255, 255, 255, .45); }
.foot-about { margin-top: 18px; font-size: .9rem; line-height: 1.85; max-width: 40ch; }
.foot h5 { color: #fff; font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 16px; }
.foot-list li { margin-bottom: 10px; }
.foot-list a { font-size: .91rem; transition: color .2s; }
.foot-list a:hover { color: #fff; }
.foot-contact { display: grid; gap: 13px; }
.foot-contact div { display: flex; gap: 12px; font-size: .91rem; }
.foot-contact .ico { flex: none; width: 20px; height: 20px; color: var(--leaf-soft); margin-top: 3px; }
.foot-contact b { color: #fff; font-weight: 600; }
.foot-qr { display: flex; gap: 12px; margin-top: 8px; }
.foot-qr figure { text-align: center; }
.foot-qr img { width: 92px; border-radius: 10px; background: #fff; padding: 5px; }
.foot-qr figcaption { margin-top: 6px; font-size: .74rem; }
.foot-bot {
  margin-top: clamp(36px, 5vw, 56px); padding: 22px 0; border-top: 1px solid rgba(255, 255, 255, .1);
  display: flex; flex-wrap: wrap; gap: 14px 26px; justify-content: space-between;
  font-size: .82rem; color: rgba(255, 255, 255, .42);
}
.foot-bot a:hover { color: #fff; }
.foot-filing { margin-top: 10px; font-size: .78rem; color: rgba(255, 255, 255, .42); display: flex; flex-wrap: wrap; gap: 8px 20px; }
.foot-filing a { color: rgba(255, 255, 255, .55); }
.foot-filing a:hover { color: #fff; }
.foot-kw { font-size: .78rem; color: rgba(255, 255, 255, .34); line-height: 1.9; }

/* ---------- 22. Mobile dock ---------- */
.dock {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 88;
  display: none; background: rgba(252, 251, 248, .94); backdrop-filter: blur(16px);
  border-top: 1px solid var(--line); padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  transform: translateY(110%); transition: transform .35s var(--ease);
}
.dock.show { transform: none; }
.dock-in { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.dock a {
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 7px 2px; border-radius: 12px; font-size: .72rem; font-weight: 600; color: var(--text-2);
}
.dock a:hover { color: var(--primary); }
.dock a.dock-cta { color: var(--clay); }
.dock svg { width: 21px; height: 21px; }

.to-top {
  position: fixed; right: 18px; bottom: 92px; z-index: 87; width: 44px; height: 44px;
  border-radius: 50%; border: 1px solid var(--line); background: #fff; color: var(--primary);
  display: grid; place-items: center; box-shadow: var(--sh-2);
  opacity: 0; pointer-events: none; transform: translateY(10px);
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}
.to-top.show { opacity: 1; pointer-events: auto; transform: none; }

/* ---------- 23. Page head (subpages) ---------- */
.page-head {
  position: relative; padding: calc(var(--nav-h) + 58px) 0 54px;
  background: var(--sand); border-bottom: 1px solid var(--line); overflow: hidden;
}
.page-head::before {
  content: ""; position: absolute; right: -120px; top: -140px; width: 460px; height: 460px;
  border-radius: 50%; background: radial-gradient(circle, rgba(62, 142, 104, .13), transparent 68%);
}
.page-head h1 { font-size: clamp(1.95rem, 4.2vw, 3rem); margin-top: 15px; position: relative; }
.page-head p { margin-top: 16px; max-width: 64ch; color: var(--text-2); font-size: 1.02rem; position: relative; }
.crumbs { display: flex; gap: 8px; font-size: .83rem; color: var(--text-3); position: relative; }
.crumbs a:hover { color: var(--primary); }
.crumbs span { opacity: .6; }

/* ---------- 24. Misc blocks ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 4vw, 60px); align-items: center; }
.split-media { border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--sh-3); }
.split-media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.check-list { display: grid; gap: 12px; margin-top: 22px; }
.check-list li { display: flex; gap: 12px; font-size: .94rem; color: var(--text-2); line-height: 1.7; }
.check-list .tick {
  flex: none; width: 22px; height: 22px; border-radius: 50%; background: rgba(31, 92, 67, .12);
  color: var(--primary); display: grid; place-items: center; margin-top: 3px;
}
.forest .check-list li { color: var(--on-dark-2); }
.forest .check-list .tick { background: rgba(255, 255, 255, .12); color: var(--leaf-soft); }

.quote {
  border-left: 3px solid var(--clay); padding: 6px 0 6px 22px;
  font-family: var(--serif); font-size: 1.08rem; color: var(--forest); line-height: 1.75;
}
.badge-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
.badge {
  padding: 6px 14px; border-radius: var(--r-pill); background: rgba(31, 92, 67, .08);
  color: var(--primary); font-size: .8rem; font-weight: 600;
}
.forest .badge { background: rgba(255, 255, 255, .12); color: #B7E3C8; }

.notice {
  padding: 20px 22px; border-radius: var(--r-md); background: rgba(196, 98, 58, .07);
  border: 1px solid rgba(196, 98, 58, .2); color: #7E3A1E; font-size: .9rem; line-height: 1.75;
}
.forest .notice { background: rgba(255, 255, 255, .07); border-color: rgba(255, 255, 255, .16); color: rgba(255, 255, 255, .82); }

/* light header over dark hero (top of page) */
body[data-hero="dark"] .site-head:not(.scrolled) .brand-name { color: #fff; }
body[data-hero="dark"] .site-head:not(.scrolled) .brand-sub { color: rgba(255, 255, 255, .62); }
body[data-hero="dark"] .site-head:not(.scrolled) .nav a { color: rgba(255, 255, 255, .82); }
body[data-hero="dark"] .site-head:not(.scrolled) .nav a:hover { color: #fff; background: rgba(255, 255, 255, .14); }
body[data-hero="dark"] .site-head:not(.scrolled) .lang-switch { border-color: rgba(255, 255, 255, .3); background: rgba(255, 255, 255, .14); }
body[data-hero="dark"] .site-head:not(.scrolled) .lang-switch a { color: rgba(255, 255, 255, .82); }
body[data-hero="dark"] .site-head:not(.scrolled) .lang-switch a.on { background: #fff; color: var(--ink); }
body[data-hero="dark"] .site-head:not(.scrolled) .nav-toggle { border-color: rgba(255, 255, 255, .3); background: rgba(255, 255, 255, .12); color: #fff; }
body[data-hero="dark"] .site-head:not(.scrolled) .brand-mark { filter: drop-shadow(0 2px 8px rgba(0, 0, 0, .35)); }

/* ---------- 25. Reveal ---------- */
.reveal { transition: opacity .62s var(--ease), transform .62s var(--ease); }
.js .reveal { opacity: 0; transform: translateY(18px); }
.js .reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }

/* ---------- 26. Responsive ---------- */
@media (max-width: 1180px) {
  .prod-grid { grid-template-columns: repeat(3, 1fr); }
  .foot-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .foot-grid > :last-child { grid-column: 1 / -1; }
}
@media (max-width: 1024px) {
  .nav { display: none; }
  .nav-toggle { display: flex; }
  .hero-split-inner { grid-template-columns: 1fr; }
  .g4 { grid-template-columns: repeat(2, 1fr); }
  .g3 { grid-template-columns: repeat(2, 1fr); }
  .g-2-1, .g-1-2 { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .cta-band { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .timeline::before { display: none; }
  .tl-item { padding-top: 46px; }
}
@media (max-width: 760px) {
  .prod-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .gallery { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 140px; gap: 10px; }
  .g-item.wide { grid-column: span 2; }
  .facts-body { grid-template-columns: 1fr; }
  .facts-body div:nth-child(2n) { border-left: none; }
  .facts-body dt { width: 92px; }
  .form-grid { grid-template-columns: 1fr; }
  .qr-grid { grid-template-columns: 1fr; }
  .dock { display: block; }
  body { padding-bottom: 66px; }
  .to-top { bottom: 86px; }
  .sec-desc { font-size: .98rem; }
}
@media (max-width: 560px) {
  .wrap, .wrap-wide, .head-inner, .hero-inner { padding-inline: 18px; }
  .g2 { grid-template-columns: 1fr; }
  .g3, .g4 { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-bottom: 52px; }
  .hero-actions .btn { flex: 1 1 100%; }
  .prod-body { padding: 14px 14px 16px; }
  .prod-title { font-size: .94rem; }
  .prod-desc { font-size: .82rem; }
  .foot-grid { grid-template-columns: 1fr; }
  .head-actions .btn { display: none; }
  .stat-strip { margin-top: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important; animation-iteration-count: 1 !important;
    transition-duration: .001ms !important; scroll-behavior: auto !important;
  }
  .reveal, .js .reveal { opacity: 1 !important; transform: none !important; }
}

@media print {
  .site-head, .dock, .to-top, .drawer, .lightbox { display: none !important; }
  body { padding: 0; }
}