/* ===== 大朴包装官网 · 浅色半透明版（奶油米 + 浅牛皮纸 + 焦糖点缀） ===== */
:root {
  --text: #1f1f1f;           /* 正文黑色 */
  --text-2: #595959;         /* 次级文字深灰 */
  --text-3: #8f8f8f;         /* 辅助/英文小字 */
  --brand: #c39a6b;          /* 浅牛皮纸棕 · 装饰主色 */
  --brand-dark: #1f1f1f;     /* 强调文字用黑 */
  --accent: #e0b475;         /* 焦糖浅黄 · 点缀 */
  --glass-1: rgba(226, 205, 178, .30);   /* 半透明面板 */
  --glass-2: rgba(226, 205, 178, .50);
  --glass-3: rgba(243, 234, 220, .62);   /* 更浅的透明层 */
  --line: rgba(178, 152, 116, .26);
  --line-strong: rgba(178, 152, 116, .40);
  --bg: #ffffff;
  --bg-soft: #fbf8f2;
  --shadow: 0 10px 30px rgba(150, 118, 78, .12);
  --shadow-hover: 0 18px 40px rgba(150, 118, 78, .18);
  --header-h: 76px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 15px;
  line-height: 1.7;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
.container { width: 1200px; max-width: calc(100% - 48px); margin: 0 auto; }

/* ---------- 导航 ---------- */
.header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.88); backdrop-filter: blur(14px) saturate(1.1); border-bottom: 1px solid var(--line); transition: box-shadow .3s, background .3s; }
.header.scrolled { box-shadow: 0 6px 24px rgba(150,118,78,.10); background: rgba(255,255,255,.94); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.logo { display: flex; align-items: center; gap: 12px; }
.header-phone { display: flex; align-items: center; gap: 8px; font-size: 17px; font-weight: 700; color: var(--text); letter-spacing: .5px; }
.header-phone .ico { font-size: 18px; }
.header-phone:hover { color: #6b4a2a; }
.logo-text b { display: block; font-size: 19px; letter-spacing: 2px; color: var(--text); }
.logo-text span { display: block; font-size: 10px; color: var(--text-3); letter-spacing: 3px; }
.nav { display: flex; gap: 8px; }
.nav a { position: relative; padding: 8px 18px; font-size: 15.5px; color: var(--text); transition: color .25s; }
.nav a::after { content: ""; position: absolute; left: 18px; right: 18px; bottom: 2px; height: 2px; background: var(--accent); transform: scaleX(0); transition: transform .3s; }
.nav a:hover, .nav a.active { color: var(--brand-dark); font-weight: 600; }
.nav a:hover::after, .nav a.active::after { transform: scaleX(1); }
/* 二级下拉导航 */
.nav .nav-item { position: relative; }
.nav .nav-item > a { display: inline-flex; align-items: center; }
.nav .caret { font-size: 10px; margin-left: 3px; color: var(--text-3); line-height: 1; transform: translateY(1px); }
.nav .sub-nav { position: absolute; top: 100%; left: 50%; transform: translate(-50%, 8px); min-width: 148px; background: rgba(255,255,255,.96); backdrop-filter: blur(10px); border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow-hover); padding: 8px; opacity: 0; visibility: hidden; transition: all .25s; z-index: 60; }
.nav .nav-item:hover .sub-nav { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.nav .sub-nav a { display: block; padding: 9px 16px; font-size: 14px; white-space: nowrap; text-align: center; border-radius: 6px; }
.nav .sub-nav a::after { display: none; }
.nav .sub-nav a:hover, .nav .sub-nav a.active { color: var(--brand-dark); font-weight: 600; background: var(--glass-2); }
.nav .sub-nav.sub-cols { display: grid; grid-template-columns: repeat(2, auto); gap: 2px 6px; justify-content: center; min-width: 0; padding: 10px 12px; }
.nav .sub-nav.sub-cols a { text-align: center; }
/* ---------- Banner 轮播 ---------- */
.banner { position: relative; height: 640px; overflow: hidden; background: var(--bg-soft); }
.slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.2s ease; }
.slide.active { opacity: 1; }
.slide img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.07); transition: transform 9s linear; }
.slide.active img { transform: scale(1); }

/* 方向性渐变：让文字落进图片本身的暗部，而不是整体压一层灰 */
.slide-veil { position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(97deg, rgba(26,19,12,.88) 0%, rgba(26,19,12,.68) 24%, rgba(26,19,12,.28) 48%, rgba(26,19,12,.04) 70%, rgba(26,19,12,0) 100%),
    linear-gradient(270deg, rgba(26,19,12,.42) 0%, rgba(26,19,12,0) 30%),
    linear-gradient(0deg, rgba(26,19,12,.6) 0%, rgba(26,19,12,.08) 38%, rgba(26,19,12,0) 66%);
}

/* 文字区：左下偏心构图 */
.slide-inner { position: absolute; left: 0; right: 0; bottom: 0; z-index: 3; padding-bottom: 116px; }
.s-head { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.s-dot { width: 7px; height: 7px; background: var(--accent); transform: rotate(45deg); flex: none; }
.s-cat { font-size: 12.5px; letter-spacing: 3px; color: rgba(255,255,255,.88); }
.s-rule { display: block; width: 56px; height: 1px; background: rgba(255,255,255,.46); }
.s-en { font-size: 11.5px; letter-spacing: 4px; text-transform: uppercase; color: rgba(255,255,255,.7); }
.slide-inner h1, .slide-inner h2 { font-size: 54px; font-weight: 900; line-height: 1.24; letter-spacing: 1px; color: #fff; text-shadow: 0 8px 36px rgba(16,10,4,.45); }
.slide-inner h1 .l2, .slide-inner h2 .l2 { display: inline-block; margin-left: 64px; }
.slide-inner h1 em, .slide-inner h2 em { font-style: normal; color: #f2cd93; }
.s-desc { margin-top: 22px; font-size: 15.5px; letter-spacing: 1.6px; color: rgba(255,255,255,.8); }
.s-foot { display: flex; align-items: center; flex-wrap: wrap; gap: 18px 32px; margin-top: 30px; }
.s-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.s-tags li { padding: 6px 16px; font-size: 12.5px; letter-spacing: 1px; color: rgba(255,255,255,.92); background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.3); border-radius: 999px; backdrop-filter: blur(6px); }
.s-link { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; letter-spacing: 1.5px; color: #fff; border-bottom: 1px solid rgba(255,255,255,.45); padding-bottom: 3px; transition: color .3s, border-color .3s; }
.s-link i { font-style: normal; transition: transform .3s; }
.s-link:hover { color: var(--accent); border-color: var(--accent); }
.s-link:hover i { transform: translateX(4px); }

/* 右侧竖排小字 */
.s-vert { position: absolute; z-index: 2; right: 22px; top: 46%; transform: translateY(-50%); writing-mode: vertical-rl; font-size: 10.5px; letter-spacing: 7px; text-transform: uppercase; color: rgba(255,255,255,.5); }

/* 文案入场：逐级浮起；切走时随图淡出 */
.s-head, .slide-inner h1, .slide-inner h2, .s-desc, .s-foot { opacity: 0; transform: translateY(26px); transition: opacity .5s ease, transform .5s ease; }
.slide.active .s-head { opacity: 1; transform: none; transition: opacity .8s ease .15s, transform .8s cubic-bezier(.2,.7,.3,1) .15s; }
.slide.active h1, .slide.active h2 { opacity: 1; transform: none; transition: opacity .9s ease .3s, transform .9s cubic-bezier(.2,.7,.3,1) .3s; }
.slide.active .s-desc { opacity: 1; transform: none; transition: opacity .9s ease .46s, transform .9s cubic-bezier(.2,.7,.3,1) .46s; }
.slide.active .s-foot { opacity: 1; transform: none; transition: opacity .9s ease .6s, transform .9s cubic-bezier(.2,.7,.3,1) .6s; }
.btn { display: inline-block; padding: 14px 40px; border-radius: 999px; font-size: 15px; transition: all .3s; cursor: pointer; border: 1px solid transparent; }
.btn-light { background: rgba(255,255,255,.9); color: var(--brand-dark); font-weight: 700; backdrop-filter: blur(8px); }
.btn-light:hover { background: rgba(224,180,117,.9); color: #6b4a2a; }
.btn-dark { background: var(--glass-2); border-color: var(--line-strong); color: var(--brand-dark); font-weight: 600; backdrop-filter: blur(6px); }
.btn-dark:hover { background: rgba(224,180,117,.45); color: #7d5836; }
.btn-outline { border: 1px solid var(--line-strong); color: var(--brand-dark); background: rgba(255,255,255,.6); }
.btn-outline:hover { background: var(--glass-2); }
/* 轮播控制条：左页码点 · 右翻页 */
.banner-nav { position: absolute; z-index: 5; left: 0; right: 0; bottom: 46px; }
.banner-nav .container { display: flex; align-items: center; justify-content: space-between; }
.banner-dots { display: flex; align-items: center; gap: 10px; }
.banner-dots span { width: 32px; height: 2px; background: rgba(255,255,255,.4); cursor: pointer; transition: background .3s, width .3s; }
.banner-dots span.active { background: var(--accent); width: 46px; }
.banner-ctrls { display: flex; gap: 12px; }
.banner-arrows { width: 46px; height: 46px; border-radius: 50%; border: 1px solid rgba(255,255,255,.5); color: #fff; background: rgba(255,255,255,.12); font-size: 14px; line-height: 1; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all .3s; backdrop-filter: blur(8px); }
.banner-arrows:hover { background: rgba(255,255,255,.92); color: var(--brand-dark); border-color: transparent; }

/* ---------- 通用板块标题 ---------- */
.section { padding: 90px 0; }
.section.soft { background: linear-gradient(180deg, var(--bg-soft), #fdfaf5); }
.sec-head { text-align: center; margin-bottom: 56px; }
.sec-head .en { font-size: 13px; letter-spacing: 5px; color: var(--text-3); text-transform: uppercase; }
.sec-head h2 { font-size: 36px; font-weight: 800; margin: 8px 0 14px; letter-spacing: 1px; color: var(--text); }
.sec-head .rule { width: 46px; height: 3px; background: var(--accent); margin: 0 auto; border-radius: 2px; }
.sec-head p { color: var(--text-2); margin-top: 14px; }

/* ---------- 产品卡片 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.p-card { background: rgba(255,255,255,.75); border: 1px solid var(--line); overflow: hidden; transition: transform .35s, box-shadow .35s, border-color .35s; display: block; backdrop-filter: blur(6px); }
.p-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: var(--line-strong); }
.p-card .pic { height: 260px; overflow: hidden; }
.p-card .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.p-card:hover .pic img { transform: scale(1.07); }
.p-card .body { padding: 22px 24px 24px; position: relative; }
.p-card .body::before { content: ""; position: absolute; top: 0; left: 24px; width: 34px; height: 3px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .35s; border-radius: 2px; }
.p-card:hover .body::before { transform: scaleX(1); }
.p-card .en { font-size: 11px; letter-spacing: 2px; color: var(--text-3); text-transform: uppercase; }
.p-card h3 { font-size: 20px; font-weight: 700; margin: 4px 0 8px; color: var(--text); }
.p-card p { font-size: 13.5px; color: var(--text-2); }
.p-card .more { display: inline-block; margin-top: 10px; font-size: 13px; color: var(--brand-dark); font-weight: 600; }
.p-card .more i { font-style: normal; transition: margin-left .3s; }
.p-card:hover .more i { margin-left: 6px; }

/* ---------- 产品中心：业务图标层 + 分类侧栏布局 ---------- */
.biz-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.biz { display: block; text-align: center; padding: 32px 16px; background: rgba(255,255,255,.75); border: 1px solid var(--line); border-radius: 8px; backdrop-filter: blur(6px); transition: transform .3s, box-shadow .3s; }
.biz:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.biz .ico { font-size: 30px; color: var(--brand-dark); line-height: 1; }
.biz h3 { font-size: 18px; margin-top: 12px; color: var(--text); }
.biz .en { font-size: 11px; letter-spacing: 1px; color: var(--text-3); text-transform: uppercase; margin-top: 5px; }
.pcat-layout { display: grid; grid-template-columns: 240px 1fr; gap: 36px; align-items: start; }
.side-cat { background: rgba(255,255,255,.78); border: 1px solid var(--line); border-radius: 8px; padding: 26px 20px; position: sticky; top: 92px; backdrop-filter: blur(6px); }
.side-cat h3 { font-size: 20px; color: var(--text); padding: 0 12px; margin-bottom: 12px; }
.side-cat a { display: block; padding: 9px 12px; font-size: 14.5px; color: var(--text-2); border-radius: 6px; transition: all .25s; }
.side-cat a:hover { color: var(--brand-dark); background: var(--glass-2); }
.side-cat a.active { color: #fff; background: var(--brand); font-weight: 600; }
.side-cat .cat-note { margin-top: 14px; padding: 12px; font-size: 12.5px; line-height: 1.7; color: var(--text-3); border-top: 1px dashed var(--line); }
@media (max-width: 900px) {
  .pcat-layout { grid-template-columns: 1fr; }
  .side-cat { position: static; }
  .side-cat a { display: inline-block; padding: 7px 12px; margin: 2px 2px; }
  .side-cat .cat-note { display: none; }
  .biz-strip { grid-template-columns: 1fr; }
}

/* ---------- 关于我们 ---------- */
.about-flex { display: flex; gap: 56px; align-items: center; }
.about-flex .pic { flex: 0 0 500px; height: 400px; overflow: hidden; border-radius: 6px; box-shadow: var(--shadow); }
.about-flex .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.about-flex .pic:hover img { transform: scale(1.05); }
.about-flex h2 { font-size: 32px; font-weight: 800; margin-bottom: 6px; color: var(--text); }
.about-flex .sub-en { font-size: 12px; letter-spacing: 4px; color: var(--text-3); text-transform: uppercase; margin-bottom: 18px; }
.about-flex p { color: var(--text-2); margin-bottom: 14px; text-align: justify; }
.about-flex .btn { margin-top: 10px; }

/* 数据条（半透明浅色） */
.stats { background: linear-gradient(135deg, rgba(226,205,178,.42), rgba(243,234,220,.55)); backdrop-filter: blur(10px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats .container { display: flex; justify-content: space-between; padding: 54px 0; flex-wrap: wrap; gap: 20px; }
.stat { flex: 1; text-align: center; min-width: 160px; }
.stat b { font-size: 44px; font-weight: 900; color: var(--brand-dark); }
.stat span { display: block; margin-top: 4px; font-size: 14px; color: var(--text-2); }

/* ---------- 生产设备 ---------- */
.eq-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
/* 生产设备卡：图片完整展示 + 说明文字放图片下方（不遮挡图片） */
.eq-card { position: relative; background: rgba(255,255,255,.75); border: 1px solid var(--line); overflow: hidden; border-radius: 6px; box-shadow: var(--shadow); transition: transform .35s, box-shadow .35s; }
.eq-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.eq-card img { display: block; width: 100%; height: 250px; object-fit: cover; }
.eq-card .cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 46px 20px 14px; background: linear-gradient(180deg, rgba(30,22,14,0), rgba(30,22,14,.6)); color: #fff; }
.eq-card .cap b { font-size: 16px; letter-spacing: 1px; }
.eq-card .cap span { display: block; font-size: 12.5px; margin-top: 5px; color: rgba(255,255,255,.85); letter-spacing: .5px; }
.eq-card:hover .cap { background: linear-gradient(180deg, rgba(30,22,14,0), rgba(30,22,14,.75)); }

/* ---------- 优势 ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.adv { background: rgba(255,255,255,.7); border: 1px solid var(--line); padding: 38px 28px; text-align: center; transition: all .35s; backdrop-filter: blur(6px); }
.adv:hover { border-color: var(--line-strong); box-shadow: var(--shadow-hover); transform: translateY(-4px); background: rgba(255,255,255,.9); }
.adv .ico { width: 58px; height: 58px; margin: 0 auto 18px; background: var(--glass-2); border: 1px solid var(--line-strong); color: var(--brand-dark); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; transition: all .35s; }
.adv:hover .ico { background: rgba(224,180,117,.55); color: #7d5836; }
.adv h3 { font-size: 19px; margin-bottom: 4px; color: var(--text); }
.adv .en { font-size: 11px; letter-spacing: 2px; color: var(--text-3); text-transform: uppercase; margin-bottom: 10px; }
.adv p { font-size: 13.5px; color: var(--text-2); }

/* ---------- 新闻 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.n-card { background: rgba(246,239,229,.62); padding: 30px 26px; border: 1px solid transparent; transition: all .3s; display: block; backdrop-filter: blur(6px); }
.n-card:hover { background: rgba(255,255,255,.92); border-color: var(--line-strong); box-shadow: var(--shadow); }
.n-card .tag { font-size: 12px; color: var(--text-3); letter-spacing: 1px; }
.n-card h3 { font-size: 18px; line-height: 1.5; margin: 8px 0 10px; color: var(--text); }
.n-card:hover h3 { color: var(--brand-dark); }
.n-card p { font-size: 13.5px; color: var(--text-2); }
.n-card .date { margin-top: 14px; font-size: 12.5px; color: var(--text-3); }

/* ---------- CTA（浅色半透明） ---------- */
.cta { background: linear-gradient(120deg, rgba(226,205,178,.48), rgba(243,234,220,.62) 60%, rgba(224,180,117,.28)); backdrop-filter: blur(10px); border-top: 1px solid var(--line); text-align: center; padding: 80px 0; }
.cta h2 { font-size: 34px; font-weight: 900; color: var(--text); }
.cta p { color: var(--text-2); margin: 12px 0 28px; }
.cta .btn-light { background: rgba(255,255,255,.92); color: var(--brand-dark); border: 1px solid var(--line-strong); }
.cta .btn-light:hover { background: rgba(224,180,117,.75); color: #6b4a2a; }

/* ---------- 页脚（浅色） ---------- */
.footer { background: linear-gradient(180deg, rgba(243,234,220,.75), rgba(238,228,212,.9)); color: var(--text-2); padding: 64px 0 0; font-size: 13.5px; border-top: 1px solid var(--line); }
.footer .cols { display: flex; justify-content: space-between; gap: 40px; padding-bottom: 44px; flex-wrap: wrap; }
.footer h4 { color: var(--text); font-size: 15.5px; margin-bottom: 16px; letter-spacing: 1px; }
.footer li { margin-bottom: 9px; }
.footer a:hover { color: var(--brand-dark); }
.footer .brand p { margin-top: 14px; max-width: 260px; line-height: 1.9; }
.footer-bottom { border-top: 1px solid var(--line); padding: 20px 0; display: flex; justify-content: space-between; font-size: 12.5px; color: var(--text-3); }

/* ---------- 子页 banner ---------- */
.page-banner { height: 340px; background: var(--bg-soft); position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center; text-align: center; color: #fff; }
.page-banner img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .85; }
.page-banner::after { content: ""; position: absolute; inset: 0; background: rgba(74,58,42,.45); }
.page-banner .inner { position: relative; z-index: 2; }
.page-banner h1 { font-size: 40px; font-weight: 900; letter-spacing: 2px; }
.page-banner .crumb { margin-top: 10px; font-size: 13.5px; color: #f0e7db; letter-spacing: 2px; }
.page-banner .crumb a:hover { color: var(--accent); }

/* ---------- 新闻列表 / 联系页 ---------- */
.news-list .n-card { display: flex; flex-direction: column; }
/* ---------- 联系我们 ---------- */
.contact-panel { display: grid; grid-template-columns: repeat(3, 1fr); background: rgba(255,255,255,.78); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow); backdrop-filter: blur(6px); overflow: hidden; }
.contact-panel li { padding: 46px 30px; text-align: center; border-left: 1px solid var(--line); transition: background .35s; }
.contact-panel li:first-child { border-left: none; }
.contact-panel li:hover { background: rgba(246,239,229,.62); }
.contact-panel .ico { display: inline-flex; width: 54px; height: 54px; align-items: center; justify-content: center; background: var(--glass-2); border: 1px solid var(--line-strong); border-radius: 50%; font-size: 21px; color: var(--brand-dark); margin-bottom: 16px; }
.contact-panel b { display: block; font-size: 15px; letter-spacing: 2px; color: var(--text); margin-bottom: 10px; }
.contact-panel span { display: block; color: var(--text-2); font-size: 14px; line-height: 1.9; }
.contact-panel span a { color: var(--brand-dark); font-weight: 600; border-bottom: 1px solid var(--line-strong); padding-bottom: 1px; transition: color .25s, border-color .25s; }
.contact-panel span a:hover { color: #6b4a2a; border-color: var(--accent); }
.visit-note { margin-top: 30px; background: linear-gradient(120deg, rgba(226,205,178,.35), rgba(243,234,220,.5) 60%, rgba(224,180,117,.22)); border: 1px solid var(--line); border-radius: 10px; padding: 32px 40px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.visit-note b { display: block; font-size: 18px; letter-spacing: 1px; color: var(--text); }
.visit-note p { margin-top: 8px; color: var(--text-2); font-size: 14px; }
.visit-note .btn { flex: none; }

/* 服务流程 */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.flow .step { position: relative; padding: 30px 26px; border-left: 1px solid var(--line); }
.flow .step:first-child { border-left: none; }
.flow .num { font-size: 13px; color: var(--text-3); letter-spacing: 2px; }
.flow h3 { font-size: 20px; margin: 6px 0 8px; color: var(--text); }
.flow p { font-size: 13.5px; color: var(--text-2); }
/* 定制服务页：6步流程 / FAQ 折叠 */
.flow.flow-6 { grid-template-columns: repeat(3, 1fr); }
.flow.flow-6 .step { border-left: 1px solid var(--line); border-top: 1px solid var(--line); padding: 32px 28px; }
.flow.flow-6 .step:nth-child(-n+3) { border-top: none; }
.flow.flow-6 .step:nth-child(3n+1) { border-left: none; }
.flow.flow-6 .step .days { display: inline-block; margin-top: 10px; font-size: 12px; letter-spacing: 1px; color: var(--brand-dark); background: var(--glass-2); border: 1px solid var(--line); border-radius: 999px; padding: 3px 12px; }
.faq-item { border-bottom: 1px dashed var(--line); }
.faq-item summary { cursor: pointer; padding: 18px 2px; font-size: 16.5px; font-weight: 600; color: var(--text); list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "＋"; flex: none; color: var(--brand-dark); font-weight: 400; transition: transform .3s; }
.faq-item[open] summary::after { content: "－"; }
.faq-item p { padding: 0 2px 18px; color: var(--text-2); font-size: 14.5px; line-height: 1.9; }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity: 1; transform: none; }
.d1 { transition-delay: .1s; } .d2 { transition-delay: .2s; } .d3 { transition-delay: .3s; } .d4 { transition-delay: .4s; }

/* 返回顶部 */
#toTop { position: fixed; right: 26px; bottom: 30px; width: 46px; height: 46px; border-radius: 50%; background: rgba(255,255,255,.9); border: 1px solid var(--line-strong); color: var(--brand-dark); font-size: 19px; cursor: pointer; opacity: 0; pointer-events: none; transition: all .35s; z-index: 90; box-shadow: var(--shadow); backdrop-filter: blur(8px); }
#toTop.show { opacity: 1; pointer-events: auto; }
#toTop:hover { background: rgba(224,180,117,.6); color: #6b4a2a; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-3, .eq-grid, .adv-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .about-flex { flex-direction: column; }
  .about-flex .pic { flex: none; width: 100%; }
  .contact-panel li { padding: 34px 18px; }
  .slide-inner h1, .slide-inner h2 { font-size: 38px; }
  .slide-inner h1 .l2, .slide-inner h2 .l2 { margin-left: 40px; }
  .s-vert { display: none; }
  .banner { height: 500px; }
  .slide-inner { padding-bottom: 96px; }
}
@media (max-width: 640px) {
  .grid-3, .grid-2, .eq-grid, .adv-grid, .news-grid, .flow { grid-template-columns: 1fr; }
  .flow .step { border-left: none; border-top: 1px solid var(--line); }
  .slide-inner h1, .slide-inner h2 { font-size: 27px; }
  .slide-inner h1 .l2, .slide-inner h2 .l2 { margin-left: 24px; }
  .s-vert { display: none; }
  .s-foot { margin-top: 20px; }
  .contact-panel { grid-template-columns: 1fr; }
  .contact-panel li { border-left: none; border-top: 1px solid var(--line); padding: 30px 20px; }
  .contact-panel li:first-child { border-top: none; }
  .visit-note { padding: 26px 24px; }
  .banner-nav { bottom: 26px; }
  .banner { height: 440px; }
  .section { padding: 60px 0; }
}

/* ---------- 标签胶囊（产品页·更多品类） ---------- */
.chip-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chip-list span { padding: 5px 13px; font-size: 12.5px; background: var(--glass-1); border: 1px solid var(--line); border-radius: 999px; color: var(--text-2); }

/* ---------- 移动端抽屉导航 ---------- */
.nav-toggle { display: none; }
@media (max-width: 1024px) {
  .nav-toggle { display: flex; width: 42px; height: 42px; border: 1px solid var(--line-strong); background: rgba(255,255,255,.72); border-radius: 8px; cursor: pointer; flex-direction: column; align-items: center; justify-content: center; gap: 5px; flex: none; }
  .nav-toggle span { display: block; width: 18px; height: 2px; background: var(--text); transition: transform .3s, opacity .3s; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav { position: fixed; top: var(--header-h); right: 0; height: calc(100vh - var(--header-h)); width: min(320px, 84%); background: rgba(255,253,250,.98); backdrop-filter: blur(12px); box-shadow: -14px 0 44px rgba(150,118,78,.2); flex-direction: column; align-items: stretch; gap: 0; padding: 14px 24px 30px; overflow-y: auto; transform: translateX(105%); transition: transform .35s ease; z-index: 80; display: flex; }
  .nav.open { transform: none; }
  .nav a { display: flex; justify-content: space-between; align-items: center; padding: 13px 4px; font-size: 16px; border-bottom: 1px solid var(--line); }
  .nav a::after { display: none; }
  .nav .sub-nav { position: static; opacity: 1; visibility: visible; transform: none; min-width: 0; background: transparent; border: none; box-shadow: none; padding: 0; display: none; }
  .nav .nav-item.expanded .sub-nav { display: block; }
  .nav .sub-nav.sub-cols { grid-template-columns: 1fr 1fr; padding: 2px 0 10px; }
  .nav .sub-nav a { border-bottom: none; padding: 8px 10px; text-align: left; font-weight: 400; }
  .nav .sub-nav a:hover, .nav .sub-nav a.active { background: transparent; color: var(--brand-dark); }
  .nav-mask { position: fixed; top: var(--header-h); left: 0; height: calc(100vh - var(--header-h)); width: 100%; background: rgba(31,31,31,.35); opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; z-index: 70; }
  .nav-mask.show { opacity: 1; visibility: visible; }
}