/* ==========================================================================
   GRLIN 格林生活 — grlin.cn
   静态官网样式表
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计变量
   -------------------------------------------------------------------------- */
:root {
  /* 色彩 */
  --ink:        #17130f;
  --ink-soft:   #453e35;
  --ink-mute:   #7d7466;
  --paper:      #f7f3ed;
  --paper-2:    #fffdfa;
  --paper-3:    #ece5da;
  --copper:     #a9743f;
  --copper-lt:  #c99a63;
  --copper-dk:  #7d5228;
  --line:       rgba(23, 19, 15, .13);
  --line-lt:    rgba(23, 19, 15, .07);

  /* 字体 */
  --font-display: Georgia, "Times New Roman", "Songti SC", "STSong",
                  "Source Han Serif SC", "Noto Serif SC", "Noto Serif CJK SC",
                  "SimSun", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;

  /* 尺寸 */
  --wrap: 1240px;
  --wrap-narrow: 880px;
  --hdr-h: 76px;
  --radius: 3px;
  --ease: cubic-bezier(.22, .61, .36, 1);

  /* 节奏 */
  --sp-section: clamp(72px, 9vw, 140px);
}

/* --------------------------------------------------------------------------
   2. 基础重置
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-soft);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

img, svg { display: block; max-width: 100%; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 400;
  line-height: 1.22;
  letter-spacing: .01em;
  margin: 0;
}

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

a { color: inherit; text-decoration: none; }

ul, ol { margin: 0; padding: 0; list-style: none; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

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

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

/* --------------------------------------------------------------------------
   3. 布局工具
   -------------------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 48px);
}

.wrap--narrow { max-width: var(--wrap-narrow); }

.section { padding-block: var(--sp-section); }

.bg-paper-2 { background: var(--paper-2); }
.bg-ink     { background: var(--ink); color: rgba(255, 255, 255, .74); }
.bg-ink h1, .bg-ink h2, .bg-ink h3, .bg-ink h4 { color: #fff; }
.bg-paper-3 { background: var(--paper-3); }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* 插画容器：[data-art] 由 JS 注入内联 SVG 并加上 .art 类。
   尺寸一律定在容器上，SVG 填满容器 —— 避免百分比宽度循环依赖导致塌缩。 */
[data-art] { display: block; }
.art { display: block; }
.art > svg { display: block; width: 100%; height: auto; }

/* --------------------------------------------------------------------------
   4. 排版组件
   -------------------------------------------------------------------------- */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 20px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--copper);
  flex: none;
}
.eyebrow--center { justify-content: center; }

.h-display {
  font-size: clamp(2.1rem, 5.2vw, 3.9rem);
  letter-spacing: -.005em;
}

.h-section {
  font-size: clamp(1.65rem, 3.2vw, 2.5rem);
}

.h-card {
  font-size: 1.075rem;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0;
}

.lede {
  font-size: clamp(1rem, 1.35vw, 1.1rem);
  color: var(--ink-mute);
  max-width: 58ch;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: clamp(36px, 4.5vw, 60px);
}
.section-head--center {
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.section-head--center .lede { text-align: center; }

/* --------------------------------------------------------------------------
   5. 按钮
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 30px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius);
  transition: background .3s var(--ease), color .3s var(--ease),
              border-color .3s var(--ease), transform .3s var(--ease);
}
.btn:hover { background: var(--copper); border-color: var(--copper); transform: translateY(-2px); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
}
.btn--ghost:hover { background: var(--ink); border-color: var(--ink); color: #fff; }

.btn--light {
  background: transparent;
  border-color: rgba(255, 255, 255, .5);
  color: #fff;
}
.btn--light:hover { background: #fff; border-color: #fff; color: var(--ink); }

.btn--solid-light { background: #fff; border-color: #fff; color: var(--ink); }
.btn--solid-light:hover { background: var(--copper); border-color: var(--copper); color: #fff; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  padding-bottom: 6px;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.link-arrow::after {
  content: "→";
  transition: transform .3s var(--ease);
}
.link-arrow:hover { color: var(--copper); border-color: var(--copper); }
.link-arrow:hover::after { transform: translateX(5px); }

/* --------------------------------------------------------------------------
   6. 顶部公告条
   -------------------------------------------------------------------------- */
.topbar {
  background: var(--ink);
  color: rgba(255, 255, 255, .68);
  font-size: 12px;
  letter-spacing: .06em;
  text-align: center;
  padding: 9px 20px;
}
.topbar b { color: var(--copper-lt); font-weight: 600; }

/* --------------------------------------------------------------------------
   7. 页头
   -------------------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(247, 243, 237, .86);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border-bottom: 1px solid var(--line-lt);
  transition: background .35s var(--ease), border-color .35s var(--ease);
}
.header.is-scrolled {
  background: rgba(247, 243, 237, .97);
  border-bottom-color: var(--line);
}

.header__inner {
  height: var(--hdr-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

/* Logo */
.logo {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex: none;
}
.logo__mark {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: .1em;
  color: var(--ink);
  line-height: 1;
}
.logo__cn {
  font-size: 12px;
  letter-spacing: .32em;
  color: var(--ink-mute);
  line-height: 1;
}

/* 主导航 */
.nav { display: flex; align-items: center; gap: 2px; }

.nav__item { position: relative; }

.nav__link {
  display: block;
  padding: 10px 16px;
  font-size: 14px;
  letter-spacing: .05em;
  color: var(--ink-soft);
  transition: color .25s var(--ease);
}
.nav__link:hover { color: var(--copper); }
.nav__link[aria-current="page"] { color: var(--ink); font-weight: 600; }
.nav__link[aria-current="page"]::after {
  content: "";
  display: block;
  height: 1px;
  background: var(--copper);
  margin-top: 5px;
}

/* 下拉 */
.nav__panel {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 224px;
  padding: 10px 0;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 22px 44px -22px rgba(23, 19, 15, .3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
}
.nav__item:hover .nav__panel,
.nav__item:focus-within .nav__panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav__panel a {
  display: block;
  padding: 9px 22px;
  font-size: 13.5px;
  color: var(--ink-soft);
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav__panel a:hover { color: var(--copper); background: var(--paper); }

/* 页头右侧动作区 */
.header__actions { display: flex; align-items: center; gap: 6px; flex: none; }

.icon-btn {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--ink-soft);
  transition: color .25s var(--ease), background .25s var(--ease);
}
.icon-btn:hover { color: var(--copper); background: rgba(169, 116, 63, .09); }

.header__cta { margin-left: 8px; padding: 11px 22px; font-size: 12px; }

/* 汉堡按钮 */
.burger { display: none; }
.burger span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--ink);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.burger span + span { margin-top: 5px; }
.is-open .burger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.is-open .burger span:nth-child(2) { opacity: 0; }
.is-open .burger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* 移动端抽屉 */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: var(--paper);
  padding: calc(var(--hdr-h) + 40px) clamp(20px, 7vw, 48px) 48px;
  overflow-y: auto;
  transform: translateY(-100%);
  transition: transform .45s var(--ease);
}
.drawer.is-open { transform: translateY(0); }
.drawer__group + .drawer__group { margin-top: 26px; }
.drawer__title {
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 8px;
}
.drawer a.drawer__link {
  display: block;
  padding: 13px 0;
  font-family: var(--font-display);
  font-size: 1.45rem;
  color: var(--ink);
  border-bottom: 1px solid var(--line-lt);
}
.drawer__foot { margin-top: 40px; display: grid; gap: 8px; font-size: 13px; color: var(--ink-mute); }

/* --------------------------------------------------------------------------
   8. 首页 Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  background: var(--ink);
  color: rgba(255, 255, 255, .72);
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  /* 光晕 */
  content: "";
  position: absolute;
  width: 78vw;
  height: 78vw;
  top: -34vw;
  right: -22vw;
  background: radial-gradient(circle, rgba(169, 116, 63, .36), transparent 62%);
  z-index: -1;
}
.hero::after {
  /* 细网格纹理 */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .032) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(ellipse 90% 70% at 60% 40%, #000 25%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 60% 40%, #000 25%, transparent 78%);
  z-index: -1;
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  align-items: center;
  gap: clamp(32px, 5vw, 72px);
  min-height: calc(100svh - var(--hdr-h) - 36px);
  padding-block: clamp(56px, 8vw, 100px);
}

.hero h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.9rem);
  line-height: 1.14;
  color: #fff;
  margin-bottom: 26px;
}
.hero h1 em {
  font-style: normal;
  color: var(--copper-lt);
}

.hero__sub {
  font-size: clamp(1rem, 1.3vw, 1.09rem);
  max-width: 46ch;
  margin-bottom: 38px;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(24px, 4vw, 52px);
  margin-top: clamp(46px, 6vw, 72px);
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, .14);
}
.hero__stat dt {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 2.9vw, 2.3rem);
  color: #fff;
  line-height: 1;
}
.hero__stat dd {
  margin: 9px 0 0;
  font-size: 12px;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* Hero 插画区 */
.hero__art {
  position: relative;
  display: grid;
  place-items: center;
}
.hero__art-ring {
  position: absolute;
  width: min(88%, 460px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 50%;
}
.hero__art-ring::before {
  content: "";
  position: absolute;
  inset: 9%;
  border: 1px solid rgba(169, 116, 63, .3);
  border-radius: 50%;
}
.hero__art .art {
  position: relative;
  width: min(78%, 400px);
  color: rgba(255, 255, 255, .82);
}
.hero__art .art .art-fill { fill: rgba(201, 154, 99, .16); }

.hero__badge {
  position: absolute;
  right: 2%;
  bottom: 6%;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .16);
  backdrop-filter: blur(8px);
  padding: 14px 20px;
  border-radius: var(--radius);
  font-size: 12px;
  letter-spacing: .1em;
  color: #fff;
}
.hero__badge span { display: block; color: var(--copper-lt); font-size: 11px; letter-spacing: .2em; }

/* 滚动提示 */
.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
  font-size: 10px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.scroll-cue i {
  width: 1px;
  height: 40px;
  background: linear-gradient(rgba(255, 255, 255, .5), transparent);
  animation: cue 2.2s var(--ease) infinite;
}
@keyframes cue {
  0%, 100% { opacity: .25; transform: scaleY(.5); transform-origin: top; }
  50%      { opacity: 1;   transform: scaleY(1);   transform-origin: top; }
}

/* --------------------------------------------------------------------------
   9. 信任条 / 跑马灯
   -------------------------------------------------------------------------- */
.trustbar {
  border-block: 1px solid var(--line-lt);
  background: var(--paper-2);
  padding-block: 22px;
}
.trustbar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(20px, 5vw, 64px);
}
.trustbar__item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--ink-mute);
  white-space: nowrap;
}
.trustbar__item svg { width: 17px; height: 17px; color: var(--copper); flex: none; }

/* --------------------------------------------------------------------------
   10. 品类网格
   -------------------------------------------------------------------------- */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(14px, 1.6vw, 22px);
}

.cat {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 340px;
  padding: 26px;
  background: var(--paper-2);
  border: 1px solid var(--line-lt);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .4s var(--ease), transform .4s var(--ease),
              box-shadow .4s var(--ease);
}
.cat::before {
  /* 悬停渐变 */
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(169, 116, 63, .13));
  opacity: 0;
  transition: opacity .45s var(--ease);
}
.cat:hover {
  border-color: var(--copper);
  transform: translateY(-6px);
  box-shadow: 0 30px 50px -34px rgba(23, 19, 15, .42);
}
.cat:hover::before { opacity: 1; }

.cat__art {
  position: relative;
  flex: 1;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  color: var(--ink);
}
.cat__art .art {
  width: min(58%, 140px);
  transition: transform .55s var(--ease);
}
.cat:hover .cat__art .art { transform: scale(1.07) translateY(-4px); }
.cat__art .art-fill { fill: rgba(169, 116, 63, .1); }
.cat:hover .cat__art .art-fill { fill: rgba(169, 116, 63, .2); }

.cat__body { position: relative; }
.cat__name { font-size: 1.2rem; margin-bottom: 4px; }
.cat__en {
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 14px;
}
.cat__desc { font-size: 13.5px; color: var(--ink-mute); margin-bottom: 14px; }
.cat__count { font-size: 12px; color: var(--copper); letter-spacing: .1em; }

/* --------------------------------------------------------------------------
   11. 产品网格
   -------------------------------------------------------------------------- */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
}
.prod-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  display: flex;
  flex-direction: column;
  background: var(--paper-2);
  border: 1px solid var(--line-lt);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease),
              border-color .4s var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--line);
  box-shadow: 0 34px 54px -36px rgba(23, 19, 15, .4);
}

.card__media {
  position: relative;
  aspect-ratio: 4 / 3.4;
  display: grid;
  place-items: center;
  background: linear-gradient(160deg, var(--paper) 0%, var(--paper-3) 100%);
  color: var(--ink);
  overflow: hidden;
}
.card__media .art {
  width: 54%;
  transition: transform .55s var(--ease);
}
.card:hover .card__media .art { transform: scale(1.09); }
.card__media .art-fill { fill: rgba(169, 116, 63, .12); }

.card__tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--ink);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 2px;
}
.card__tag--copper { background: var(--copper); }

.card__fav {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, .8);
  color: var(--ink-mute);
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity .35s var(--ease), transform .35s var(--ease), color .3s var(--ease);
}
.card:hover .card__fav { opacity: 1; transform: translateY(0); }
.card__fav:hover { color: var(--copper); }
.card__fav svg { width: 16px; height: 16px; }

.card__body {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card__cat {
  font-size: 10.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 9px;
}
.card__name { margin-bottom: 8px; }
.card__desc {
  font-size: 13px;
  color: var(--ink-mute);
  margin-bottom: 18px;
  flex: 1;
}
.card__foot {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-top: 15px;
  border-top: 1px solid var(--line-lt);
}
.card__spec { font-size: 12.5px; color: var(--ink-mute); letter-spacing: .06em; }

/* --------------------------------------------------------------------------
   12. 图文分栏
   -------------------------------------------------------------------------- */
.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: clamp(36px, 6vw, 88px);
}
.split--reverse .split__media { order: 2; }

.split__media {
  position: relative;
  aspect-ratio: 4 / 3.5;
  display: grid;
  place-items: center;
  background: linear-gradient(150deg, var(--paper-3), var(--paper));
  border-radius: var(--radius);
  overflow: hidden;
}
.bg-ink .split__media { background: linear-gradient(150deg, #241e18, #17130f); }
.split__media .art { width: 62%; color: var(--ink); }
.bg-ink .split__media .art { color: rgba(255, 255, 255, .85); }
.split__media .art-fill { fill: rgba(169, 116, 63, .13); }

.split__media-note {
  position: absolute;
  left: 22px;
  bottom: 20px;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.split__list { margin: 28px 0 34px; display: grid; gap: 14px; }
.split__list li {
  position: relative;
  padding-left: 26px;
  font-size: 14.5px;
}
.split__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 12px;
  height: 1px;
  background: var(--copper);
}

/* --------------------------------------------------------------------------
   14. 工艺步骤
   -------------------------------------------------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
  counter-reset: step;
}
.step { position: relative; padding-top: 30px; border-top: 1px solid var(--line); }
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  top: 22px;
  left: 0;
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--copper);
}
.bg-ink .step { border-top-color: rgba(255, 255, 255, .16); }
.step h3 { font-size: 1.15rem; margin: 16px 0 10px; }
.step p { font-size: 13.5px; color: var(--ink-mute); }

/* --------------------------------------------------------------------------
   15. 资讯卡片
   -------------------------------------------------------------------------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2.4vw, 32px);
}
.news {
  display: flex;
  flex-direction: column;
  background: var(--paper-2);
  border: 1px solid var(--line-lt);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
}
.news:hover {
  transform: translateY(-6px);
  border-color: var(--line);
  box-shadow: 0 30px 50px -36px rgba(23, 19, 15, .38);
}
.news__media {
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  background: linear-gradient(150deg, var(--paper-3), var(--paper));
  color: var(--ink);
  overflow: hidden;
}
.news__media .art { width: 34%; transition: transform .55s var(--ease); }
.news:hover .news__media .art { transform: scale(1.08) rotate(-2deg); }
.news__media .art-fill { fill: rgba(169, 116, 63, .14); }

.news__body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.news__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 13px;
}
.news__meta b { color: var(--copper); font-weight: 600; }
.news__title { font-size: 1.13rem; margin-bottom: 12px; }
.news__excerpt { font-size: 13.5px; color: var(--ink-mute); margin-bottom: 20px; flex: 1; }

/* --------------------------------------------------------------------------
   16. 订阅 / CTA
   -------------------------------------------------------------------------- */
.subscribe {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(30px, 5vw, 70px);
}
.subscribe__form { display: flex; gap: 10px; flex-wrap: wrap; }
.subscribe__form input {
  flex: 1 1 240px;
  min-width: 0;
  padding: 15px 18px;
  font: inherit;
  font-size: 14px;
  color: #fff;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--radius);
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.subscribe__form input::placeholder { color: rgba(255, 255, 255, .4); }
.subscribe__form input:focus {
  outline: none;
  border-color: var(--copper-lt);
  background: rgba(255, 255, 255, .1);
}
.subscribe__hint { font-size: 12px; color: var(--ink-mute); margin-top: 14px; }

/* --------------------------------------------------------------------------
   17. CTA 通栏
   -------------------------------------------------------------------------- */
.cta-band {
  position: relative;
  background: var(--ink);
  color: rgba(255, 255, 255, .72);
  text-align: center;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  width: 60vw;
  height: 60vw;
  left: 50%;
  top: -30vw;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(169, 116, 63, .3), transparent 65%);
}
.cta-band .wrap { position: relative; }
.cta-band .lede { margin-inline: auto; }
.cta-band__actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

/* --------------------------------------------------------------------------
   18. 页脚
   -------------------------------------------------------------------------- */
.footer {
  background: var(--ink);
  color: rgba(255, 255, 255, .55);
  font-size: 13.5px;
  padding-top: clamp(56px, 7vw, 88px);
}
.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: clamp(28px, 4vw, 56px);
  padding-bottom: clamp(40px, 5vw, 64px);
}
.footer .logo__mark { color: #fff; }
.footer .logo__cn { color: rgba(255, 255, 255, .45); }
.footer__blurb { margin-top: 20px; max-width: 34ch; line-height: 1.8; }

.footer__title {
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 18px;
}
.footer__list { display: grid; gap: 10px; }
.footer__list a { transition: color .25s var(--ease); }
.footer__list a:hover { color: var(--copper-lt); }

.footer__contact { display: grid; gap: 12px; }
.footer__contact dt { color: rgba(255, 255, 255, .75); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; }
.footer__contact dd { margin: 0; }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding-block: 26px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: 12.5px;
  color: rgba(255, 255, 255, .42);
}
.footer__legal { display: flex; flex-wrap: wrap; gap: 22px; }
.footer__legal a:hover { color: var(--copper-lt); }

/* --------------------------------------------------------------------------
   19. 内页头图
   -------------------------------------------------------------------------- */
.page-hero {
  position: relative;
  background: var(--ink);
  color: rgba(255, 255, 255, .7);
  padding-block: clamp(56px, 8vw, 108px);
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  width: 60vw;
  height: 60vw;
  right: -18vw;
  top: -26vw;
  background: radial-gradient(circle, rgba(169, 116, 63, .28), transparent 62%);
}
.page-hero .wrap { position: relative; }
.page-hero h1 {
  font-size: clamp(2rem, 4.6vw, 3.3rem);
  color: #fff;
  margin-bottom: 20px;
}
.page-hero p { max-width: 56ch; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--ink-mute);
  margin-bottom: 24px;
}
.breadcrumb a:hover { color: var(--copper); }
.breadcrumb span { opacity: .5; }
.page-hero .breadcrumb { color: rgba(255, 255, 255, .45); }
.page-hero .breadcrumb a:hover { color: var(--copper-lt); }

/* 认证徽章 */
.badges {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
}
.badge {
  display: grid;
  place-items: center;
  gap: 10px;
  padding: 28px 16px;
  text-align: center;
  background: var(--paper-2);
  border: 1px solid var(--line-lt);
  border-radius: var(--radius);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ink-mute);
  transition: border-color .3s var(--ease), color .3s var(--ease);
}
.badge:hover { border-color: var(--copper); color: var(--copper); }
.badge svg { width: 26px; height: 26px; color: var(--copper); }
.badge b { color: var(--ink); font-size: 13px; letter-spacing: .08em; }

/* 团队/工厂卡片 */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2.4vw, 30px);
}
.value {
  padding: 32px 28px;
  background: var(--paper-2);
  border: 1px solid var(--line-lt);
  border-radius: var(--radius);
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}
.value:hover { transform: translateY(-5px); border-color: var(--copper); }
.value svg { width: 30px; height: 30px; color: var(--copper); margin-bottom: 20px; }
.value h3 { font-size: 1.12rem; margin-bottom: 10px; }
.value p { font-size: 14px; color: var(--ink-mute); }

/* --------------------------------------------------------------------------
   21. 联系页
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: clamp(36px, 5vw, 72px);
  align-items: start;
}

.form { display: grid; gap: 18px; }
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field { display: grid; gap: 8px; }
.field label {
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.field label .req { color: var(--copper); }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 14px 16px;
  font: inherit;
  font-size: 14.5px;
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--copper);
  box-shadow: 0 0 0 3px rgba(169, 116, 63, .12);
}
.field__error { font-size: 12px; color: #b3402f; min-height: 1em; }

.form__note { font-size: 12.5px; color: var(--ink-mute); }

.form-ok {
  display: none;
  padding: 18px 22px;
  background: rgba(169, 116, 63, .1);
  border: 1px solid var(--copper);
  border-radius: var(--radius);
  color: var(--ink);
  font-size: 14px;
}
.form-ok.is-visible { display: block; }

.info-list { display: grid; gap: 26px; }
.info-item { display: grid; gap: 6px; }
.info-item dt {
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--copper);
}
.info-item dd { margin: 0; font-size: 15px; color: var(--ink-soft); line-height: 1.7; }
.info-item dd a:hover { color: var(--copper); }

.map-box {
  margin-top: 34px;
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  gap: 12px;
  text-align: center;
  background: var(--paper-3);
  border: 1px solid var(--line-lt);
  border-radius: var(--radius);
  color: var(--ink-mute);
  font-size: 13px;
  padding: 24px;
}
.map-box svg { width: 34px; height: 34px; color: var(--copper); }

/* FAQ 手风琴 */
.faq { border-top: 1px solid var(--line-lt); }
.faq__item { border-bottom: 1px solid var(--line-lt); }
.faq__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 4px;
  text-align: left;
  font-size: 1.02rem;
  color: var(--ink);
  font-weight: 600;
  transition: color .25s var(--ease);
}
.faq__q:hover { color: var(--copper); }
.faq__q i {
  position: relative;
  width: 14px;
  height: 14px;
  flex: none;
}
.faq__q i::before,
.faq__q i::after {
  content: "";
  position: absolute;
  background: var(--copper);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.faq__q i::before { top: 50%; left: 0; width: 14px; height: 1.5px; transform: translateY(-50%); }
.faq__q i::after { left: 50%; top: 0; height: 14px; width: 1.5px; transform: translateX(-50%); }
.faq__item.is-open .faq__q i::after { transform: translateX(-50%) scaleY(0); opacity: 0; }
.faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s var(--ease);
}
.faq__a > div {
  padding: 0 4px 24px;
  font-size: 14.5px;
  color: var(--ink-mute);
  max-width: 68ch;
}

/* --------------------------------------------------------------------------
   22. 滚动入场动画
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
  will-change: opacity, transform;
}
[data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* --------------------------------------------------------------------------
   23. 响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .cat-grid,
  .prod-grid,
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .prod-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .news-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .value-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px 20px; }
}

@media (max-width: 900px) {
  .nav,
  .header__cta,
  .header__actions .icon-btn--hide-sm { display: none; }
  .burger { display: grid; place-items: center; width: 40px; height: 40px; }

  .hero__inner { grid-template-columns: 1fr; min-height: auto; }
  .hero__art { order: -1; margin-bottom: 8px; }
  .hero__art .art { width: min(58%, 260px); }
  .hero__art-ring { width: min(66%, 300px); }
  .hero__badge { display: none; }
  .scroll-cue { display: none; }

  .split { grid-template-columns: 1fr; }
  .split--reverse .split__media { order: 0; }
  .split__media { aspect-ratio: 16 / 11; }

  .subscribe { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  :root { --hdr-h: 64px; }

  .cat-grid,
  .prod-grid,
  .prod-grid--3,
  .news-grid,
  .steps,
  .value-grid { grid-template-columns: 1fr; }

  .cat { min-height: 280px; }
  .form__row { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }

  .section-head { align-items: flex-start; }
  .btn { width: 100%; }
  .hero__actions .btn { width: auto; flex: 1 1 auto; }
}